CN203470198U - Axial-flow cyclone gas-solid separator with solid collecting device - Google Patents

Abstract

The utility model discloses an axial flow cyclone type gas-solid separator with a solid collecting device, which comprises a separator shell, a swirl vane is arranged at the entrance of the separator shell, and The axial direction of the swirl vane is provided with a gas outlet channel, which is composed of a tapered conical cylinder, a rectifier tube and a diffuser tube arranged in sequence. The lower side wall of the separator shell communicates with a solid discharge channel, and the solid discharge The passage is perpendicular to the gas outlet passage, a solid collection device is provided on the solid discharge passage, and valves are respectively provided at both ends of the solid collection device. The utility model not only can efficiently separate the gas from the solid, but also can effectively collect the separated solid into the solid collection device, has the characteristics of small flow resistance, and does not affect the normal gas supply during the process of solid removal. The utility model has the advantages of simple structure and convenient operation. It is mainly used in gas purification, industrial dust removal, air purification and other devices.

Description

Axial flow cyclone gas-solid separator with solids collection device

technical field

The utility model relates to a gas-solid separator, in particular to an axial flow cyclone type gas-solid separator.

Background technique

With the change of national energy structure, the consumption of natural gas is increasing year by year. Although the natural gas has been purified after being extracted, iron filings and impurities with large particles will be formed during the long-distance transportation process due to the corrosion of the pipeline or the damage of the internal structure. The flow meter at the end of the pipeline is washed, which affects the accuracy of the flow meter, and will destroy the flow meter in severe cases. Therefore, it is necessary to separate solid particles in natural gas in natural gas transmission engineering.

At present, the gas-solid separators commonly used in removing solid particles in the gas at home and abroad are mainly centrifugal separators and filter elements. Centrifugal separators realize the separation of phases based on the principle of centrifugal separation. However, conventional centrifugal separators have problems such as poor sealing, large volume, low separation efficiency, and large flow resistance. Cartridge filters are commonly used filters in oil and gas pipelines, but they have relatively high flow resistance, short service life and high prices.

Utility model content

In view of the above prior art, the utility model provides an axial flow cyclone gas-solid separator with a solid collection device, which can not only efficiently separate the gas from the solid, but also effectively collect the separated solid into the solid collection unit. In the device, it has the characteristics of small flow resistance, simple structure and convenient operation.

In order to solve the above-mentioned technical problems, the technical scheme realized by the axial-flow cyclone gas-solid separator with a solid collection device in the present invention is: the gas-solid separator includes a separator housing, and the inlet of the separator housing A swirl vane is provided at the place, and a gas outlet channel is arranged at the rear of the swirl vane and along the axial direction of the swirl vane, and the gas outlet channel is composed of a tapered conical cylinder, a rectifier tube and The lower side wall of the separator shell communicates with the solid discharge passage, the solid discharge passage is perpendicular to the gas outlet passage, and a solid collection device is arranged on the solid discharge passage, and the solid collection The two ends of the device are respectively provided with valves.

In the axial-flow cyclone gas-solid separator with a solid collection device, the gap between the outer edge of the swirl vane and the inner wall of the separator shell is at most 10mm. The edge of each blade in the swirl blades is provided with a chamfer of 30-60°, and the angle between the front and rear sides of each blade is 30-60°. The taper angle of the tapered cone is 30° to 90°, the diffuser tube is a gradually expanding cone, and the cone angle of the expanding cone is 30° to 120°. Both ends of the separator are equipped with connecting flanges.

Compared with the prior art, the beneficial effects of the utility model are:

The gas-solid separator of the utility model can efficiently collect the solids separated by the cyclone type separator into a special solid collection device, the normal gas supply will not be affected during the solid removal process, and the gas flow resistance is small. It is mainly used in gas purification, industrial dust removal, air purification and other devices.

Description of drawings

Fig. 1 is the cross-sectional view of the axial flow cyclone type gas-solid separator with solid collection device of the present invention;

Fig. 2 is an appearance view of the gas-solid separator shown in Fig. 1 .

In the picture:

1-separator shell, 2-converging cone, 3-rectifier tube, 4-diffuser tube, 5-solid discharge channel, 6-solid collection device, 7-swirl vane, 81-upper valve, 82 - Lower valve, 9 - Connecting flange.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model is an axial flow cyclone gas-solid separator with a solid collection device, which includes a separator shell 1, and the inlet of the separator shell 1 is provided with a cyclone The blade 7, the gap between the outer edge of the swirl blade 7 and the inner wall of the separator housing 1 is at most 10mm. The edge of each blade in the swirl blade 7 is provided with a chamfer of 30-60°, and the angle between the front and rear sides of each blade is 30-60°. The rear portion of the swirl vane 7 and along the axial direction of the swirl vane 7 are provided with a gas outlet channel, and the gas outlet channel is composed of a tapered conical cylinder 2, a rectifier tube 3 and a diffuser tube arranged in sequence. 4, the tapered cone 2 has a cone angle of 30° to 90°, the diffuser 4 is a gradually expanding cone, and the cone angle of the gradually expanding cone is 30° to 120°. The lower side wall of the separator housing 1 communicates with a solid discharge channel 5, the solid discharge channel 5 is perpendicular to the gas outlet channel, and the solid discharge channel 5 is provided with a solid collection device 6, the solid The two ends of the collecting device 6 are respectively provided with valves. When cleaning the solid collecting device 6, the upper valve 81 and the lower valve 82 at both ends are alternately operated to ensure the normal production of the whole system. When cleaning the solid, the upper valve 81 is opened to make the The solid falls into the solid collection device 6 between the two valves, then the upper valve 81 is closed, and then the lower valve 82 is opened, and the solid is discharged outside the gas-solid separator under the action of the gas's own pressure and gravity, so that the solid can be discharged safely and Ensure that there is no gas leakage. In addition, in order to facilitate the connection and disassembly of the gas-solid separator of the present invention and the pipeline, connecting flanges 9 are provided at both ends of the separator, thereby ensuring that the axial flow cyclone separator does not change the main direction of gas flow .

The working process of the utility model axial-flow cyclone gas-solid separator with a solid collection device is: the high-speed gas containing solid particles enters from the gas inlet on the left side of the separator shell 1, and passes through the high-speed rotating swirl blade 2. The diversion effect, using the principle of constant airflow energy conservation, the velocity increase at the tapered conical tube increases the dynamic pressure here, thus ensuring that the separator is at the center of the large bottom of the cone (at the center of the A-A surface in Figure 1) The static pressure of the static pressure increases, so that the axial velocity of the solid particles decreases, preventing the solid particles from entering the gas outlet channel, and the solid particles generate a radial velocity along the wall of the separator shell 1, so that the solid particles move down along the wall and enter the solid collection The device acts as a collection. After the solid particles are separated from the gas, they continue to move along the inner wall of the separator housing 1, a part of the solid particles directly enter the solid collection device 6 through the solid discharge channel 5, and a part of the solid particles gather on the outer rotary surface at the rear end of the tapered cone 2 , when the solid particles accumulate to a certain extent, they fall into the solid collection device 6 from the outer rotating surface under the action of their own gravity; at the same time, the gas separated from the solid particles and removed of solid impurities is directly Entering the gas outlet channel, since the gas outlet channel is composed of a tapered cone tube 2, a rectifier tube 3 and a diffuser tube 4 connected together in sequence, that is, the gas outlet channel is composed of a tapered cone tube and a small-diameter cylinder It is connected with the expanding cone, and the end is the expanding cone. Therefore, the pressure of the gas flowing here will be restored accordingly, thus completing the separation of gas and solid, and achieving gas purification. the goal of. When the separator is in working condition, the upper valve 81 is in working condition and the lower valve 82 is closed; when cleaning is required, the upper valve 81 is closed and the lower valve 82 is opened, and the solid particles are discharged by the inner pressure of the pipeline and gravity.

Although the utility model has been described above in conjunction with the drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, many deformations can be made without departing from the purpose of the utility model, and these all belong to the protection of the utility model.

Claims (5)

1. An axial flow cyclone gas-solid separator with a solid collection device, comprising a separator housing (1), characterized in that the inlet of the separator housing (1) is provided with swirl blades ( 7), the rear part of the swirl vane (7) is provided with a gas outlet channel along the axial direction of the swirl vane (7), and the gas outlet channel is composed of tapered conical cylinders (2 ), a rectifier tube (3) and a diffuser tube (4), the lower side wall of the separator housing (1) communicates with a solid discharge channel (5), and the solid discharge channel (5) is connected to the The gas outlet channel is vertical, the solid discharge channel (5) is provided with a solid collection device (6), and the two ends of the solid collection device (6) are respectively provided with valves. 2. The axial flow cyclone gas-solid separator with solid collection device according to claim 1, characterized in that, the outer edge of the swirl vane (7) is in contact with the inner wall of the separator housing (1) The gap between them is up to 10mm. 3. The axial flow cyclone gas-solid separator with solid collection device according to claim 1, characterized in that, the edge of each blade in the swirl blade (7) is provided with a chamfer of 30-60° , the angle between the front and rear sides of each blade is 30-60°. 4. The axial-flow cyclone gas-solid separator with a solid collection device according to claim 1, characterized in that, the cone angle of the tapered cone (2) is 30-90°, and the diffuser The pipe (4) is a gradually expanding conical cylinder, and the cone angle of the gradually expanding conical cylinder is 30-120°. 5. The axial-flow cyclone gas-solid separator with solid collection device according to claim 1, characterized in that, both ends of the separator are provided with connecting flanges (9).

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