Unstable multi-flow high-precision wind powder on-line measuring device

Abstract

The utility model relates to the technical field of pulverized coal concentration detection, and discloses an unsteady multi-flow high-precision pulverized coal on-line measuring device which comprises a shell, a sampling opening is formed in the outer surface of the shell, and a fixing mechanism is arranged at the end, away from the sampling opening, of the shell. According to the unsteady-state multi-flow high-precision wind powder online measuring device, the fixing mechanism is arranged and matched with the elastic matching of the first telescopic rod and the first telescopic spring, so that the mounting ring can be adaptively adjusted in the radial direction, the device effectively adapts to the size difference of different pipe diameters or mounting surfaces, and rapid and stable mounting and fixing are achieved; due to the conical design of the fixing cylinder, the guiding effect is further enhanced, it is ensured that the device is coaxially aligned with an external pipeline, the sealing performance of various pipe diameters is determined while measurement errors caused by eccentric installation are avoided, the pipeline centering precision is optimized through geometric guiding, and the measurement stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind powder concentration detection technical field, specifically to a kind of non-steady-state multiple stream high-precision wind powder online measurement device. BACKGROUND

[0002] Coal powder is passed into coal powder burner along with airflow, and high-temperature vortex is generated, which has the advantages of complete combustion, high heat utilization rate, smoke and dust removal, high efficiency and energy saving, improved working conditions and reduced labor intensity. When the coal powder burner is used, the concentration of the incoming wind powder needs to be detected to prevent the concentration from being too high or too low, which affects safety.

[0003] According to a high-precision wind powder online detection device (publication number: CN221860215U), in the above application, the motor drives the spoiler, which disturbs the wind powder entering the air inlet, and then the spiral material guide part spirally guides the wind powder into the powder collection chamber, preventing the wind powder from flowing along the bottom of the pipeline under the action of gravity, thereby improving the detection effect of the flow detection device on the wind powder flow in the pipeline, and solving the problem of uneven distribution of the flow wind powder in the prior art.

[0004] However, the size of various coal furnace ducts on the market is not the same, and the device cannot effectively adapt to various types and sizes of ducts. The entire device interface needs to be replaced every time the coal furnace is replaced, which greatly reduces the efficiency of the device. In view of this, we propose a non-steady-state multiple stream high-precision wind powder online measurement device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a non-steady-state multiple stream high-precision wind powder online measurement device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a non-steady-state multiple stream high-precision wind powder online measurement device includes a shell, a sampling port is formed on the outer surface of the shell, a fixing mechanism is arranged at one end of the shell away from the sampling port, and the fixing mechanism includes:

[0007] A fixed cylinder is fixedly connected to the end of the shell on the side close to the shell, a fixed ring is fixedly connected to the side of the fixed cylinder away from the shell, a groove is formed on the outer surface of the fixed ring, and an extension rod one is fixedly connected to the inner bottom surface of the groove;

[0008] An extension spring one is sleeved on the outer surface of the extension rod one, one end of the extension spring one is fixedly connected to the bottom surface of the groove, the other end of the extension spring one is fixedly connected to a connecting block, and the connecting block is fixedly connected to a mounting ring on the side away from the extension spring one.

[0009] Preferably, the top of the mounting ring is provided with an auxiliary mechanism, the auxiliary mechanism comprises a circular groove, the circular groove is opened on the inner surface of the mounting ring, the bottom surface of the circular groove is fixedly connected with a telescopic rod two, the outer surface of the telescopic rod two is sleeved with a telescopic spring two, one end of the telescopic spring two away from the bottom of the circular groove is fixedly connected with an auxiliary block, and the end of the auxiliary block away from the telescopic spring two is fixedly connected with a rubber pad.

[0010] Preferably, the inner surface of the shell is fixedly connected with a fixed plate, one end of the fixed plate away from the shell is fixedly connected with a flow guide cylinder, the end of the flow guide cylinder is fixedly connected with a flow guide plate, one side of the flow guide plate away from the flow guide cylinder is fixedly connected with a motor, and the output end of the motor is fixedly connected with a fan blade.

[0011] Preferably, one end of the flow guide cylinder away from the flow guide plate is fixedly connected with a detection inlet, one end of the detection inlet away from the motor is fixedly connected with a detection device, and the lower surface of the detection device is fixedly connected with a detection outlet.

[0012] Preferably, the shape of the fixed cylinder is designed as a taper.

[0013] Preferably, the outer surface of the flow guide cylinder is provided with a plurality of flow guide inlets, and the plurality of flow guide inlets are arranged in a circumferential array on the arc-shaped outer surface of the flow guide cylinder.

[0014] Preferably, the number of the auxiliary mechanism is provided with a plurality of groups, and the plurality of groups of auxiliary mechanisms are distributed in a circumferential array on the inner surface of the mounting ring.

[0015] Compared with the prior art, the non-steady-state multi-flow high-precision wind powder online measurement device has the following beneficial effects:

[0016] 1. The non-steady-state multi-flow high-precision wind powder online measurement device, by setting the fixing mechanism, cooperating with the elastic cooperation of the telescopic rod one and the telescopic spring one, the mounting ring can be self-adaptively adjusted along the radial direction, effectively adapt to the size difference of different pipe diameters or installation surfaces, realize fast and stable installation and fixation, and the taper design of the fixed cylinder further enhances the guiding effect, ensures the coaxial alignment of the device and the external pipeline, avoids the measurement error caused by eccentric installation, and also determines the sealing performance of various pipe diameters.

[0017] 2. The non-steady-state multi-flow high-precision wind powder online measurement device, by setting the auxiliary mechanism, cooperating with the flexible rubber pad of the plurality of circumferentially distributed telescopic rod two and telescopic spring two linkage, forming a flexible clamping interface, generating uniform radial pre-tightening force between the mounting ring and the outer wall of the pipeline, the elastic deformation of the rubber pad can compensate the irregular concave-convex of the pipeline surface, increase the contact friction force, and prevent the device from slipping or loosening in high-speed airflow or vibration environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure main body schematic view of the utility model;

[0019] Figure 2 It is the structure inside schematic view of the utility model;

[0020] Figure 3 It is the structure fixed mechanism schematic view of the utility model one;

[0021] Figure 4 It is the structure fixed mechanism schematic view of the utility model two;

[0022] Figure 5 It is the structure fixed mechanism schematic view of the utility model three;

[0023] Figure 6 It is the structure auxiliary mechanism schematic view of the utility model.

[0024] In the drawing: 1, shell;11, sampling port;2, flow guide cylinder;21, fixed plate;22, flow guide plate;23, motor;24, fan blade;3, detection device;31, detection inlet;32, detection outlet;4, fixed mechanism;41, fixed cylinder;42, fixed ring;43, groove;44, telescopic rod one;45, telescopic spring one;46, connecting block;47, mounting ring;5, auxiliary mechanism;51, round groove;52, telescopic rod two;53, auxiliary block;54, rubber pad;55, telescopic spring two. Specific implementation

[0025] As Figures 1-6 shown, the utility model provides a technical scheme: a kind of non-steady-state multiple flow high-precision wind powder online measuring device, including shell 1, the outer surface of shell 1 is equipped with sampling port 11, and the end of shell 1 away from sampling port 11 is provided with fixed mechanism 4, and fixed mechanism 4 includes: fixed cylinder 41, fixed ring 42, groove 43, telescopic rod one 44, telescopic spring one 45, connecting block 46, mounting ring 47.

[0026] In an embodiment of the utility model, the fixed cylinder 41 is fixedly connected with the end of the shell 1 on the side close to the shell 1, the side of the fixed cylinder 41 away from the shell 1 is fixedly connected with a fixed ring 42, the outer surface of the fixed ring 42 is provided with a groove 43, the inner bottom surface of the groove 43 is fixedly connected with a telescopic rod one 44, the outer surface of the telescopic rod one 44 is sleeved with a telescopic spring one 45, one end of the telescopic spring one 45 is fixedly connected with the bottom surface of the groove 43, the other end of the telescopic spring one 45 is fixedly connected with a connecting block 46, the side of the connecting block 46 away from the telescopic spring one 45 is fixedly connected with a mounting ring 47, through being provided with the fixed mechanism 4, the elastic cooperation of the telescopic rod one 44 and the telescopic spring one 45 is formed, the mounting ring 47 can be radially self-adaptingly adjusted, effectively adapts to the size difference of different pipe diameters or mounting surfaces, realizes quick and stable installation and fixing, the conical design of the fixed cylinder 41 further enhances the guiding effect, ensures the coaxial alignment of the device and the external pipeline, avoids the measurement error caused by eccentric installation, and also determines the sealing property of various pipe diameters.

[0027] In addition, the mounting ring 47 is provided with an auxiliary mechanism 5 on the top, the auxiliary mechanism 5 comprises a circular groove 51, the circular groove 51 is arranged on the inner surface of the mounting ring 47, the bottom surface of the circular groove 51 is fixedly connected with a telescopic rod two 52, the outer surface of the telescopic rod two 52 is sleeved with a telescopic spring two 55, one end of the telescopic spring two 55 away from the bottom of the circular groove 51 is fixedly connected with an auxiliary block 53, the end of the auxiliary block 53 away from the telescopic spring two 55 is fixedly connected with a rubber pad 54, through being provided with the auxiliary mechanism 5, the rubber pad 54 is linked by the multiple groups of circumferentially distributed telescopic rod two 52 and telescopic spring two 55, a flexible clamping interface is formed, uniform radial pre-tightening force is generated between the mounting ring 47 and the outer wall of the pipeline, the elastic deformation of the rubber pad 54 can compensate the irregular concave-convex of the surface of the pipeline, increase the contact friction force, and prevent the device from slipping or loosening in the high-speed airflow or vibration environment.

[0028] In the embodiment of the utility model, the inner surface of the shell 1 is fixedly connected with a fixed plate 21, one end of the fixed plate 21 away from the shell 1 is fixedly connected with a flow guide cylinder 2, the end of the flow guide cylinder 2 is fixedly connected with a flow guide plate 22, one side of the flow guide plate 22 away from the flow guide cylinder 2 is fixedly connected with a motor 23, the output end of the motor 23 is fixedly connected with a fan blade 24, one end of the flow guide cylinder 2 away from the flow guide plate 22 is fixedly connected with a detection inlet 31, one end of the detection inlet 31 away from the motor 23 is fixedly connected with a detection device 3, the lower surface of the detection device 3 is fixedly connected with a detection outlet 32, the shape of the fixed cylinder 41 is set as a taper, the taper design of the fixed cylinder 41 optimizes the accuracy of the pipeline centering through geometric guidance, reduces fluid disturbance and pressure loss, improves the measurement stability, the outer surface of the flow guide cylinder 2 is provided with a plurality of flow guide inlets, the plurality of flow guide inlets are arranged in a circumferential array on the arc-shaped outer surface of the flow guide cylinder 2, the circumferential array flow guide inlet of the flow guide cylinder 2 realizes the balanced distribution of multiple channels, effectively suppresses the local vortex, ensures the flow state representation of the wind powder mixture, enhances the reliability of the non-steady flow field sampling, the number of the auxiliary mechanism 5 is set as a plurality of groups, the plurality of groups of auxiliary mechanism 5 are distributed in a circumferential array on the inner surface of the mounting ring 47, the plurality of groups of circumferentially distributed auxiliary mechanism 5 form a flexible clamping network to adaptively compensate the pipeline deformation and vibration with uniform radial pressure, disperse the mechanical stress and strengthen the anti-slippage ability, and guarantee the long-term fixed sealing property of the device.

[0029] In the utility model, when using, the equipment is installed in the pipeline centering through the taper fixed cylinder 41 of the fixed mechanism 4, the mounting ring 47 is adaptively attached to the pipe diameter by the elastic adjustment of the telescopic rod one 44 and telescopic spring one 45, and the circumferentially distributed rubber pads 54 of the auxiliary mechanism 5 are uniformly pressed against the pipe wall under the action of telescopic spring two 55, so that stable sealing is realized; after the wind powder mixture is evenly distributed through the circumferential array flow guide inlet of the outer wall of the flow guide cylinder 2, the fan blade 24 is driven by the motor 23 to guide the fluid to stably enter the detection inlet 31, the detection device 3 analyzes the flow parameters in real time and discharges through the detection outlet 32, and the fixed and auxiliary mechanism 5 cooperates to buffer vibration and compensate deformation in the process, so that the high-precision online measurement of the non-steady multi-phase flow is ensured.

[0030] The foregoing has described the utility model in detail, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A non-steady multi-stream high-precision wind powder online measuring device, comprising a shell (1), a sampling port (11) is formed on the outer surface of the shell (1), characterized in that: The shell (1) is provided with a fixing mechanism (4) away from the sampling port (11), the fixing mechanism (4) comprises: The fixed cylinder (41) is fixedly connected with the shell (1) on one side close to the shell (1), and the fixed ring (42) is fixedly connected on the side away from the shell (1). The outer surface of the fixed ring (42) is provided with a groove (43), and the inner bottom surface of the groove (43) is fixedly connected with a telescopic rod (44). The telescopic spring (45) is sleeved on the outer surface of the telescopic rod (44), one end of the telescopic spring (45) is fixedly connected with the bottom surface of the groove (43), and the other end of the telescopic spring (45) is fixedly connected with a connecting block (46). The connecting block (46) is fixedly connected with a mounting ring (47) on the side away from the telescopic spring (45).

2. The non-steady multi-stream high-precision wind powder online measuring device according to claim 1, characterized in that: The mounting ring (47) is provided with an auxiliary mechanism (5) on the top, the auxiliary mechanism (5) comprises a circular groove (51) which is provided on the inner surface of the mounting ring (47), the bottom surface of the circular groove (51) is fixedly connected with a telescopic rod (52), the telescopic rod (52) is sleeved with a telescopic spring (55), one end of the telescopic spring (55) away from the bottom of the circular groove (51) is fixedly connected with an auxiliary block (53), and the other end of the auxiliary block (53) away from the telescopic spring (55) is fixedly connected with a rubber pad (54).

3. The non-steady multi-stream high-precision wind powder online measuring device according to claim 1, characterized in that: The inner surface of the shell (1) is fixedly connected with a fixed plate (21), one end of the fixed plate (21) away from the shell (1) is fixedly connected with a flow guide cylinder (2), the end of the flow guide cylinder (2) is fixedly connected with a flow guide plate (22), one side of the flow guide plate (22) away from the flow guide cylinder (2) is fixedly connected with a motor (23), and the output end of the motor (23) is fixedly connected with a fan blade (24).

4. The non-steady multi-stream high-precision wind powder online measuring device according to claim 3, characterized in that: The flow guide cylinder (2) is fixedly connected with a detection inlet (31) on the end away from the flow guide plate (22), and the detection inlet (31) is fixedly connected with a detection device (3) on the end away from the motor (23).

5. The non-steady multi-item flow high-precision wind powder online measuring device according to claim 1, characterized in that: The shape of the fixed cylinder (41) is conical.

6. The non-steady multi-item flow high-precision wind powder online measuring device according to claim 3, characterized in that: The outer surface of the flow guide cylinder (2) is provided with a plurality of flow guide inlets which are arranged in a circumferential array on the arc-shaped outer surface of the flow guide cylinder (2).

7. The non-steady multi-item flow high-precision wind powder online measuring device according to claim 2, characterized in that: The number of the auxiliary mechanism (5) is provided with a plurality of groups, and a plurality of groups of auxiliary mechanisms (5) are distributed in a circumferential array on the inner surface of the mounting ring (47).

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