Portable manual sampler for air pulverized coal pipeline

Abstract

The utility model discloses a portable manual sampler for an air pulverized coal pipeline, and belongs to the technical field of air pulverized coal sampling. The utility model solves the problems that the existing sampler for the air pulverized coal pipeline is larger in size, heavier in whole and complicated to operate. Comprising a hollow handle, a switch valve, a base, a filter body and a sample bottle, the switch valve is connected between the hollow handle and the base, one end, far away from the switch valve, of the hollow handle is connected with a sampling head through a sampling tube, one end, far away from the switch valve, of the base is connected with an air outlet tube, and the filter body is arranged in the base or the sample bottle. Gas-solid two-phase pulverized coal flows through the switch valve, enters the base and is filtered by the filtering main body, part of pulverized coal is intercepted and falls into the sample bottle, and the rest of pulverized coal and gas penetrate through the filtering main body and then are discharged through the gas outlet pipe. The pulverized coal sampling device is simpler in structure, lighter in weight and lower in production cost and sampling cost, meanwhile, the whole pulverized coal sampling process is connected through a pipeline, pulverized coal airflow leakage is effectively avoided, and then working environment pollution is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a portable wind coal powder pipeline manual sampler belongs to wind coal powder sampling technical field. BACKGROUND

[0002] The primary air pipe is the pipeline responsible for conveying the coal powder in the power plant, and the coal powder at the outlet of the coal mill is conveyed to the furnace by gas force for combustion. The quality attribute of the coal powder directly affects the fuel ignition and combustion performance in the boiler. The measurement of the quality depends on the coal powder sampling. The existing sampler is a mature product that uses the negative pressure suction and cyclone separation principle to suck the coal powder from the primary air pipe and carry out solid-gas separation, but the sampler is large in size, heavy in overall, high in cost and complex in operation. In order to reduce the sampling cost and simplify the operation steps, part of the site carries out sampling by manual transparent plastic bag, but it is easy to cause the wind coal powder gas flow to leak and pollute the working environment. SUMMARY

[0003] The utility model discloses in order to solve the above-mentioned technical problem further provides a kind of portable wind coal powder pipeline manual sampler.

[0004] The utility model discloses the technical scheme who is used to solve the above-mentioned technical problem is as follows:

[0005] A kind of portable wind coal powder pipeline manual sampler, including hollow handle, switch valve, pedestal, filter main part and sample bottle, wherein switch valve is connected and is arranged between hollow handle and pedestal, the end of hollow handle is connected with sampling head by sampling tube away from switch valve, the end of pedestal is connected with outlet tube away from switch valve, filter main part is arranged in pedestal or sample bottle, wind coal powder gas-solid two-phase flow enters the inside of pedestal by switch valve, and is filtered after filter main part, part of coal powder is intercepted and falls into sample bottle, the rest coal powder and gas are discharged by outlet tube after passing through filter main part.

[0006] Further, the gas outlet end of the outlet tube is arranged in the water storage tank.

[0007] Further, when filter main part is arranged in pedestal, the pedestal is cylindrical structure, the bottom of pedestal is provided with through hole and is communicated with sample bottle by through hole, the filter main part is powder interception filter sheet and is obliquely fixed in the pedestal, the through hole is located between powder interception filter sheet and switch valve, and the windward surface of powder interception filter sheet is arranged opposite to the through hole.

[0008] Further, when filter main part is arranged in sample bottle, the filter main part is cylindrical filter core, the inlet passage and outlet passage are processed in the pedestal, wherein the two ends of inlet passage are respectively communicated with switch valve and sample bottle, and the two ends of outlet passage are respectively communicated with the top end of cylindrical filter core and outlet tube.

[0009] Further, the sampling head is a C-type self-locking joint male head, and the sidewall interface of the pulverized coal pipeline is a C-type self-locking joint female head.

[0010] Further, the sample bottle is screwed below the base.

[0011] Compared with the prior art, the utility model has the following effects:

[0012] Compared with the prior art, the portable pulverized coal pipeline manual sampler has simpler structure, lighter weight, and lower production cost and sampling cost, and the whole powder taking process is connected through a pipeline, effectively avoiding coal powder gas flow leakage and further effectively avoiding working environment pollution. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model (when the filtering main body is a powder cutting filter disc);

[0014] Figure 2 is a structural schematic view of the utility model (when the filtering main body is a cylindrical filter core, and the pulverized coal pipeline and the water storage tank are not shown).

[0015] In the drawings:

[0016] 100, water storage tank; 1, hollow handle; 2, on-off valve; 3, base; 3-1, through hole; 3-2, air inlet channel; 3-3, air outlet channel; 3-4, boss; 4-1, powder cutting filter disc; 4-2, cylindrical filter core; 5, sample bottle; 6, sampling pipe; 7, sampling head; 8, air outlet pipe; 9, water storage tank. DETAILED DESCRIPTION

[0017] Specific implementation manner one: combining Figure 1 and Figure 2 The specific embodiments described herein are merely intended to explain the utility model, and the utility model is not limited to the specific embodiments. It should be noted that, for the purpose of description, only the parts related to the utility model are shown in the drawings, rather than all the structures.

[0018] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0019] In the utility model, unless another explicit provision and limitation, the first feature is in the second feature "on" or "under" can include that the first and second features are in direct contact, also can include that the first and second features are not in direct contact but are in contact through other features between them. Moreover, the first feature is "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than the second feature.

[0020] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] A portable wind coal dust pipeline manual sampler, including hollow handle 1, switch valve 2, base 3, filter main part and sample bottle 5, wherein the switch valve 2 is connected between the hollow handle 1 and the base 3, the end away from the switch valve 2 on the hollow handle 1 is connected with the sampling head 7 through the sampling pipe 6, the end away from the switch valve 2 on the base 3 is connected with the air outlet pipe 8, the filter main part is arranged in the base 3 or the sample bottle 5, the wind coal dust gas-solid two-phase flow enters the base 3 through the switch valve 2, and the filter main part is filtered, part of the coal dust is intercepted and falls into the sample bottle 5, and the remaining coal dust and gas are discharged through the air outlet pipe 8 after passing through the filter main part.

[0022] Dust interception is carried out through the filter main part;

[0023] By arranging the handle hollow, the overall quality of the sampler is lighter, the sampler is more portable, and the sampling operation is more labor-saving. Meanwhile, the hollow handle 1 is internally hollow, and the sample gas can pass into the base 3.

[0024] The switch valve 2 can be various valve bodies with opening / shutoff functions, preferably hand slide valves or pull operation switches, and operation is more simple.

[0025] The hollow handle 1 is communicated with the wind coal dust pipeline 100 through the sampling pipe 6 and the sampling head 7, and pipe joints are used to connect between the sampling pipe 6 and the hollow handle 1 and between the air outlet pipe 8 and the base 3.

[0026] During the sampling process, the sampler can be held by hand or placed at a position, and the vertical state of the sample bottle 5 can be more beneficial to dust collection.

[0027] Compared with the existing sampler which enters solid-gas separation by using negative pressure suction and cyclone separation principle, the portable wind-coal powder pipeline manual sampler has simpler structure, lighter quality, and lower production cost and sampling cost, and the whole powder taking process is connected through pipelines, so that coal powder gas flow leakage is effectively avoided, and working environment pollution is effectively avoided.

[0028] Working principle:

[0029] Since the wind-coal powder pipeline 100 is a low-pressure high-speed wind-coal powder gas flow, when taking powder, the switch valve 2 is opened, under the action of pressure difference and gas flow inertia, the wind-coal powder gas-solid two-phase flow passes through the filter main body, part of the coal powder is intercepted, and falls into the sample bottle 5 under the action of gravity, the remaining small amount of small particle coal powder and high-speed gas passes through the filter main body, and enters the water storage tank 9 through the gas outlet pipe 8, and exhaust treatment device, filters or intercepts the remaining small amount of small particle coal powder, and the gas is discharged into the atmosphere.

[0030] After the sample bottle 5 containing a certain amount of coal powder is separated from the base 3, subsequent manual testing can be carried out, and after the testing is completed, the sample bottle 5 is cleaned and reloaded on the base 3 for repeated use. Thus, a sampling cycle is completed.

[0031] The gas outlet end of the gas outlet pipe 8 is arranged in the water storage tank 9. In this way, during the sampling process, the gas outlet end of the gas outlet pipe 8 is buried below the water level of the water storage tank 9, the remaining small amount of small particle coal powder and high-speed gas filtered by the filter main body enter the water storage tank 9 underwater, the residual dust is intercepted by water, and the gas is naturally discharged into the atmosphere after passing through the water, further avoiding coal powder gas flow leakage, and further avoiding pollution of the working environment.

[0032] When the filter main body is arranged in the base 3, the base 3 is a cylindrical structure, a through hole 3-1 is formed in the bottom of the base 3 and communicates with the sample bottle 5 through the through hole 3-1, the filter main body is a powder intercepting filter piece 4-1 and is obliquely fixed in the base 3, the through hole 3-1 is located between the powder intercepting filter piece 4-1 and the switch valve 2, and the windward surface of the powder intercepting filter piece 4-1 is arranged opposite to the through hole 3-1. In this way, the through hole 3-1 is a discharging hole, during the sampling process, the wind-coal powder gas-solid two-phase flow passes through the powder intercepting filter piece 4-1, part of the coal powder is intercepted, and falls under the action of gravity, and falls into the sample bottle 5 below through the discharging hole; the remaining small amount of small particle coal powder and high-speed gas pass through the powder intercepting filter piece 4-1 and are discharged through the gas outlet pipe 8.

[0033] The filter hole diameter range of the powder intercepting filter piece 4-1 can be customized according to the powder taking fineness, which meets the powder taking demand and minimizes the coal powder gas emission.

[0034] When the filter body is arranged in the sample bottle 5, the filter body is a cylindrical filter core 4-2, the base 3 is internally provided with an air inlet channel 3-2 and an air outlet channel 3-3, two ends of the air inlet channel 3-2 are respectively communicated with the on-off valve 2 and the sample bottle 5, and two ends of the air outlet channel 3-3 are respectively communicated with the top end of the cylindrical filter core 4-2 and the air outlet pipe 8. In this way, during the powder taking process, the wind-coal powder gas-solid two-phase flow enters the sample bottle 5 through the air inlet channel 3-2, and then passes through the cylindrical filter core 4-2 for filtration. Part of the coal powder is intercepted by the cylindrical filter core 4-2 and falls back to the sample bottle 5 under the action of gravity, and the remaining small amount of small particle coal powder and high-speed gas pass through the cylindrical filter core 4-2, and are discharged through the air outlet channel 3-3 and the air outlet pipe 8.

[0035] The sampling head 7 is a C-type self-locking joint male head, and the sidewall interface of the wind-coal powder pipeline 100 is a C-type self-locking joint female head. In this way, the temporary connection between the sampler and the wind-coal powder pipeline 100 is facilitated.

[0036] The sample bottle 5 is threadedly fixed below the base 3. In this way, in order to facilitate the installation of the sample bottle 5, the bottom outer surface of the base 3 can be provided with a boss 3-4, and the boss 3-4 is internally provided with an internal thread, and the top of the sample bottle 5 is threadedly connected in the boss 3-4.

Claims

1. A portable wind-pulverized coal pipeline hand sampler, characterized by: The device comprises a hollow handle (1), a switch valve (2), a base (3), a filter body and a sample bottle (5), wherein the switch valve (2) is arranged between the hollow handle (1) and the base (3), the end of the hollow handle (1) away from the switch valve (2) is connected with a sampling head (7) through a sampling pipe (6), the end of the base (3) away from the switch valve (2) is connected with an air outlet pipe (8), the filter body is arranged in the base (3) or the sample bottle (5), the wind-coal powder gas-solid two-phase flow enters the base (3) through the switch valve (2), and part of the coal powder is intercepted and falls into the sample bottle (5), and the rest of the coal powder and the gas are discharged through the air outlet pipe (8) after passing through the filter body.

2. A portable wind-pulverized coal pipeline hand sampler according to claim 1, characterized in that: The air outlet end of the air outlet pipe (8) is arranged in a water storage tank (9).

3. A portable wind-pulverized coal pipeline hand sampler according to claim 1 or 2, characterized in that: When the filter body is arranged in the base (3), the base (3) is in a cylindrical structure, a through hole (3-1) is formed in the bottom of the base (3) and communicates with the sample bottle (5) through the through hole (3-1), the filter body is a powder interception filter piece (4-1) and is obliquely arranged in the base (3), the through hole (3-1) is located between the powder interception filter piece (4-1) and the switch valve (2), and the windward surface of the powder interception filter piece (4-1) is arranged opposite to the through hole (3-1) in up and down directions.

4. The portable wind-pulverized coal pipeline hand sampler according to claim 1 or 2, characterized in that: When the filter body is arranged in the sample bottle (5), the filter body is a cylindrical filter core (4-2), the base (3) is processed with an air inlet channel (3-2) and an air outlet channel (3-3), wherein the two ends of the air inlet channel (3-2) respectively communicate with the switch valve (2) and the sample bottle (5), and the two ends of the air outlet channel (3-3) respectively communicate with the top end of the cylindrical filter core (4-2) and the air outlet pipe (8).

5. The portable wind-pulverized coal pipeline hand sampler according to claim 1, characterized in that: The sampling head (7) is a C-shaped self-locking connector male head, and the sidewall interface of the wind-coal powder pipeline (100) is a C-shaped self-locking connector female head.

6. A portable wind-pulverized coal pipeline hand sampler according to claim 1, characterized in that: The sample bottle (5) is threadedly arranged below the base (3).

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