High-precision speed measuring instrument

Abstract

The utility model relates to the technical field of speed measurement, and discloses a high-precision speed measuring instrument which comprises a fan, the output end of the fan is fixedly connected with a first pipeline, the right side of the first pipeline is provided with an electromagnetic flowmeter, the right side of the electromagnetic flowmeter is provided with a second pipeline, and the right side of the second pipeline penetrates through and is connected with a combustion chamber. Connecting assemblies are arranged at the opposite ends of the first pipeline and the second pipeline correspondingly, mounting blocks are connected to the front side and the rear side of each connecting assembly correspondingly, inserting grooves are formed in the two sides of each mounting block correspondingly, stabilizing blocks are connected to the upper side and the lower side of each connecting assembly correspondingly, and mounting flanges are fixedly connected to the two sides of the electromagnetic flowmeter correspondingly. According to the quick dismounting device for the electromagnetic flowmeter, the mounting block, the inserting groove, the limiting sliding base, the extrusion groove, the clamping arm, the tension spring, the stabilizing column, the stabilizing block and the connecting assembly work in a matched mode, so that the electromagnetic flowmeter can be quickly dismounted, and the sealing performance after mounting and connecting is guaranteed during mounting and connecting.

Description

Technical Field

[0001] The utility model relates to the technical field of speed measurement, in particular to a high-precision speed measuring instrument. Background Technique

[0002] A pulverized coal burner is an important component applied to fuel combustion equipment such as industrial boilers and kilns. It is mainly used to fully mix pulverized coal with combustion-supporting air and ignite the combustion. During the design and operation of the pulverized coal burner, a special pulverized coal speed measuring device should be equipped to ensure the optimization and safety of the combustion process.

[0003] Most of the existing measuring instruments are not convenient to connect, install and disassemble with pipelines, and the measuring effect of the flow rate of pulverized coal is not good. In view of the above problems, a high-precision speed measuring instrument is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-precision speed measuring instrument, which solves the problems in the background technique that it is not convenient to connect, install and disassemble with pipelines, and the measuring effect of the flow rate of pulverized coal is not good.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a high-precision speed measuring instrument, including a blower, the output end of the blower is fixedly connected with a first pipeline, an electromagnetic flowmeter is arranged on the right side of the first pipeline, a second pipeline is arranged on the right side of the electromagnetic flowmeter, the right side of the second pipeline penetrates and is connected with a combustion chamber, connection components are arranged at opposite ends of the first pipeline and the second pipeline, mounting blocks are connected to the front and rear sides of the connection components, slots are opened on both sides of the mounting blocks, stabilizing blocks are connected to the upper and lower sides of the connection components, mounting flanges are fixedly connected to both sides of the electromagnetic flowmeter, a sealing sleeve is fixedly connected to the outer side of the mounting flange, limiting sliding seats are fixedly connected to the front and rear ends of the outer side of the mounting flange, two limiting sliding blocks are slidably connected to the outer side of the limiting sliding seats, pressing grooves are opened on the opposite sides of the two limiting sliding blocks, clamping arms are fixedly connected to the outer sides of the limiting sliding blocks, a supporting plate is fixedly connected to the middle position of the outer side of the limiting sliding seat, a rotating column penetrates and is rotatably connected to the supporting plate, a pressing block is fixedly connected to the inner end of the rotating column, and a feeding cylinder penetrates and is fixedly connected to the top of the first pipeline.

[0006] By adopting the above technical scheme, the electromagnetic flowmeter can be quickly disassembled by pulling out the clamping arms from the slots on both sides of the mounting block and pulling out the stabilizing columns from the through holes in the stabilizing blocks.

[0007] As a further description of the above technical solution: The connection component includes a connection flange. Both of the two connection flanges are fixedly connected to the first pipeline and the second pipeline. An installation groove is formed on the outer side of the connection flange. Springs evenly distributed are fixedly connected in the installation groove. The other end of the spring is fixedly connected with a sealing ring. The connection flange is fixedly connected with a stabilizing block.

[0008] By adopting the above technical solution, the connection component can facilitate ensuring the sealing performance after connection when connecting to both sides of the electromagnetic flowmeter.

[0009] As a further description of the above technical solution: The sealing sleeve corresponds to the installation groove.

[0010] By adopting the above technical solution, it is convenient for the sealing sleeve to be inserted into the installation groove for sealing.

[0011] As a further description of the above technical solution: The outer part of the extrusion block is slidably connected to the inner wall of the extrusion groove.

[0012] By adopting the above technical solution, it is convenient for the extrusion block to rotate in the extrusion groove.

[0013] As a further description of the above technical solution: The outer end of the rotating column is fixedly connected with a handle, and the handle is arranged outside the support plate.

[0014] By adopting the above technical solution, the handle can drive the rotating column to rotate.

[0015] As a further description of the above technical solution: Connecting rods are fixedly connected to the outer parts of the two limiting sliders, and a tension spring is fixedly connected between the two connecting rods.

[0016] By adopting the above technical solution, the reset of the tension spring can drive the relative movement of the two limiting sliders.

[0017] As a further description of the above technical solution: Stabilizing columns are fixedly connected to the upper and lower ends of the two installation flanges, and the stabilizing columns penetrate and are arranged in the stabilizing block.

[0018] By adopting the above technical solution, through holes are formed in the stabilizing block, which is convenient for the stabilizing columns to be inserted, improving the connection stability.

[0019] As a further description of the above technical solution: The sealing ring is arranged in the installation groove, and the outer part of the sealing ring is slidably connected to the inner wall of the installation groove.

[0020] By adopting the above technical solution, it is convenient for the sealing ring to expand and contract in the installation groove.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] A high-precision speed measuring instrument provided by the utility model works through the mutual cooperation of a connecting flange, a mounting flange, a mounting block, a slot, a limiting sliding seat, a limiting sliding block, an extrusion groove, a clamping arm, a tension spring, a stabilizing column, a stabilizing block and a connecting component. By pulling out the clamping arm from the slots on both sides of the mounting block and cooperating with pulling out the stabilizing column from the through hole in the stabilizing block, the electromagnetic flowmeter can be quickly disassembled. With the cooperation of the connecting component, it is convenient to ensure the sealing performance after installation and connection on both sides of the electromagnetic flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 is an exploded schematic diagram of the structure of the connecting component of the utility model;

[0025] Figure 3 is a schematic diagram of the structure of the limiting sliding seat of the utility model.

[0026] In the figure: 1, fan; 2, first pipeline; 3, electromagnetic flowmeter; 4, second pipeline; 5, combustion chamber; 6, connecting flange; 7, mounting groove; 8, spring; 9, sealing ring; 10, mounting block; 11, slot; 12, stabilizing block; 13, mounting flange; 14, sealing sleeve; 15, limiting sliding seat; 16, limiting sliding block; 17, extrusion groove; 18, clamping arm; 19, support plate; 20, rotating column; 21, extrusion block; 22, handle; 23, connecting rod; 24, tension spring; 25, feed cylinder; 26, stabilizing column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0028] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the drawings.

[0029] Refer to Figure 1 , Figure 2 and Figure 3, A high-precision speed measuring instrument of the present utility model includes a fan 1. The output end of the fan 1 is fixedly connected with a first pipeline 2, which plays a role in connecting and transporting pulverized coal. A electromagnetic flowmeter 3 is arranged on the right side of the first pipeline 2. A second pipeline 4 is arranged on the right side of the electromagnetic flowmeter 3. The right side of the second pipeline 4 penetrates and is connected with a combustion chamber 5. Connecting components are arranged at opposite ends of the first pipeline 2 and the second pipeline 4. Installation blocks 10 are connected to both the front and back sides of the connecting components, facilitating connection. Slots 11 are opened on both sides of the installation blocks 10, which play a limiting effect. Stabilizing blocks 12 are connected to both the upper and lower sides of the connecting components. Through holes are arranged inside the stabilizing blocks 12. Installation flanges 13 are fixedly connected to both sides of the electromagnetic flowmeter 3, facilitating installation. A sealing sleeve 14 is fixedly connected to the outer side of the installation flange 13, which plays a sealing effect. Limiting sliding seats 15 are fixedly connected to both the front and back ends of the outer side of the installation flange 13. Two limiting sliding blocks 16 are slidably connected to the outside of the limiting sliding seats 15, facilitating the relative or opposite movement of the clamping arms 18. Pressing grooves 17 are opened on the opposite sides of the two limiting sliding blocks 16. Clamping arms 18 are fixedly connected to the outer sides of the limiting sliding blocks 16, which are L-shaped. A support plate 19 is fixedly connected to the middle position of the outside of the limiting sliding seat 15, which plays a supporting effect. A rotating column 20 penetrates and is rotatably connected inside the support plate 19, which plays a connecting effect. A feeding cylinder 25 penetrates and is fixedly connected to the top of the first pipeline 2, facilitating feeding.

[0030] Referring to Figure 2 , the connecting component includes a connecting flange 6. Both connecting flanges 6 are fixedly connected to the first pipeline 2 and the second pipeline 4. An installation groove 7 is opened on the outer side of the connecting flange 6. Springs 8 evenly distributed are fixedly connected inside the installation groove 7. The other ends of the springs 8 are fixedly connected with a sealing ring 9. The connecting flange 6 is fixedly connected to the stabilizing block 12. Through the connecting component, it is convenient to ensure the sealing performance after connection when connecting to both sides of the electromagnetic flowmeter 3.

[0031] Referring to Figure 1 , Figure 2 and Figure 3 , the sealing sleeve 14 corresponds to the installation groove 7, facilitating the sealing sleeve 14 to be inserted into the installation groove 7 for sealing. An inward end of the rotating column 20 is fixedly connected with a pressing block 21, and the outer part of the pressing block 21 is slidably connected with the inner wall of the pressing groove 17, ensuring that the pressing block 21 can rotate inside the pressing groove 17. An outward end of the rotating column 20 is fixedly connected with a handle 22, and the handle 22 is arranged outside the support plate 19. Connecting rods 23 are fixedly connected to the outside of the two limiting sliding blocks 16. A tension spring 24 is fixedly connected between the two connecting rods 23. Through the reset of the tension spring 24, the two limiting sliding blocks 16 can be driven to move relatively. Stabilizing columns 26 are fixedly connected to both the upper and lower ends of the two installation flanges 13, and the stabilizing columns 26 penetrate and are arranged inside the stabilizing blocks 12, improving the connection stability. The sealing ring 9 is arranged inside the installation groove 7, and the outer part of the sealing ring 9 is slidably connected with the inner wall of the installation groove 7.

[0032] Working principle: When the electromagnetic flowmeter 3 needs to be installed, align the installation flanges 13 at both ends of the electromagnetic flowmeter 3 with the connection flanges 6 of the first pipeline 2 and the second pipeline 4. Then insert the sealing sleeves 14 on both sides of the electromagnetic flowmeter 3 into the installation grooves 7 in the connection flanges 6, and insert the stabilizing columns 26 at the upper and lower ends of the installation flange 13 into the stabilizing blocks 12 at the upper and lower ends of the connection flange 6. Then rotate the handle 22 to drive the extrusion block 21 to rotate through the rotating column 20. By the extrusion block 21 rotating in the extrusion groove 17, the two limit sliders 16 are pushed apart to both sides, driving the tension spring 24 to stretch, thereby driving the clamping arms 18 to open to both sides. After being located on both sides of the installation block 10, pull the handle 22 again to drive the extrusion block 21 to rotate from the vertical state to the horizontal state through the rotating column 20. At this time, due to the reset of the tension spring 24, the two limit sliders 16 and the clamping arms 18 are driven to move relative to each other through the connecting rod 23, so that the clamping arms 18 are inserted into the slots 11 on both sides of the installation block 10, realizing the installation of the electromagnetic flowmeter 3. During operation, pour pulverized coal from the feed hopper 25, start the blower 1 to blow the pulverized coal into the combustion chamber 5 through the first pipeline 2 and the second pipeline 4. Install the electromagnetic flowmeter 3 between the pipelines, calculate the pulverized coal flow rate by measuring the electromagnetic induction signal, and the pulverized coal flow velocity can be obtained by combining the cross-sectional area of the pipeline.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision speed measuring instrument, comprising a fan (1), characterized in that: The output end of the fan (1) is fixedly connected to a first pipeline (2), an electromagnetic flowmeter (3) is arranged on the right side of the first pipeline (2), a second pipeline (4) is arranged on the right side of the electromagnetic flowmeter (3), the second pipeline (4) passes through and is connected to a combustion chamber (5) on the right side, a connecting assembly is arranged at the opposite ends of the first pipeline (2) and the second pipeline (4), the front and rear sides of the connecting assembly are connected to mounting blocks (10), slots (11) are arranged on both sides of the mounting block (10), the upper and lower sides of the connecting assembly are connected to stabilizing blocks (12), the two sides of the electromagnetic flowmeter (3) are fixedly connected to mounting flanges (13), the outer sides of the mounting flanges (13) are fixedly connected to the mounting flanges (13), and the outer sides of the mounting flanges (13) are fixedly connected to the mounting flanges (13). A sealing sleeve (14) is fixedly connected, the front and rear ends of the mounting flange (13) are fixedly connected to a limit slide (15), the limit slide (15) is slidably connected to two limit sliders (16) on the outside, and an extrusion groove (17) is provided on the opposite side of the two limit sliders (16), the limit sliders (16) are fixedly connected to the outside with a clamping arm (18), the limit slider (15) is fixedly connected to the middle position of the outside with a support plate (19), a rotating column (20) passes through and is rotatably connected to the support plate (19), and an extrusion block (21) is fixedly connected to the inner end of the rotating column (20), and a feed barrel (25) passes through and is fixedly connected to the top of the first pipe (2).

2. A high-precision speed measuring instrument according to claim 1, characterized in that: The connection assembly comprises a connection flange (6), the two connection flanges (6) are fixedly connected to the first pipe (2) and the second pipe (4), the outer side of the connection flange (6) is provided with a mounting groove (7), the inside of the mounting groove (7) is fixedly connected with a uniformly distributed spring (8), the other end of the spring (8) is fixedly connected with a sealing ring (9), and the connection flange (6) is fixedly connected to a stabilizing block (12).

3. A high-precision speed measuring instrument according to claim 1, characterized in that: The sealing sleeve (14) corresponds to the mounting groove (7).

4. A high-precision speed measuring instrument according to claim 1, characterized in that: The outside of the extrusion block (21) is slidably connected to the inner wall of the extrusion groove (17).

5. A high-precision speed measuring instrument according to claim 1, characterized in that: A handle (22) is fixedly connected to one outward end of the rotating column (20), and the handle (22) is arranged on the outside of the supporting plate (19).

6. A high-precision speed measuring instrument according to claim 1, characterized in that: The two limit slide blocks (16) are externally fixedly connected with a connecting rod (23), and a tension spring (24) is fixedly connected between the two connecting rods (23).

7. A high-precision speed measuring instrument according to claim 1, characterized in that: The upper and lower ends of the two mounting flanges (13) are fixedly connected with stabilizing columns (26), and the stabilizing columns (26) penetrate through and are arranged in the stabilizing block (12).

8. A high-precision speed measuring instrument according to claim 2, characterized in that: The sealing ring (9) is arranged in the installation groove (7), and the outside of the sealing ring (9) is slidably connected to the inner wall of the installation groove (7).

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