Acetylene gas cooling and washing tower

Abstract

The utility model discloses an acetylene gas cooling washing tower which comprises a washing tower, a gas outlet pipe and a gas inlet pipe, the gas outlet pipe and the gas inlet pipe are connected with the upper end and the lower end of the washing tower, the bottom of the washing tower conveys washing liquid to spraying pipes arranged in multiple layers in sequence along a washing pipeline through a washing pump, and the spraying pipes are evenly arranged in a staggered mode from top to bottom. Acetylene gas with small particle carbide slag slurry is in reverse contact with washing liquid sprayed by the crossed spraying pipes through the hydrocyclones in the washing tower, washing of circulating liquid sprayed by multi-layer spraying of the washing tower is achieved, the phenomenon of blockage caused by impurities is avoided, and the washing tower is simple in structure and convenient to operate. The problem that acetylene gas carries carbide slag slurry is solved, the problem of filler blockage is avoided, and stable operation of the washing tower is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of acetylene gas washing towers, in particular to an acetylene gas cooling washing tower. Background Art

[0002] At present, the production method of acetylene, a basic chemical raw material in China, is mainly the carbide acetylene process. When acetylene gas flows out from the top of the generator, it contains a large amount of saturated water vapor, which leads to the entrainment of carbide slag slurry. In order to prevent the impurities in the carbide slag slurry from affecting the quality of the acetylene gas and clogging the purification system of the downstream process and the corresponding acetylene pipeline, the carbide slag slurry of the acetylene gas must be washed. The current washing technology uses a packed tower (such as Figure 5 As shown in Figure 1, acetylene gas enters scrubbing tower 1 and comes into countercurrent contact with a spray scrubbing liquid in the packing layer. The spray scrubbing liquid removes water vapor and carbide slag from the acetylene gas. The packing layer contains materials such as plastic, metal, or ceramic. The packing provides contact area between the gas and liquid. This increased contact area improves absorption efficiency, thereby effectively purifying the gas.

[0003] However, since carbide slag slurry is entrained in the acetylene gas, it will accumulate in the packing layer. Long-term accumulation will cause the packing layer to be blocked, so that it cannot be fully cleaned and cannot be operated continuously for a long time, affecting the stable operation of the entire washing tower 1. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an acetylene gas cooling and washing tower.

[0005] The utility model is realized through the following technical solutions:

[0006] An acetylene gas cooling and washing tower comprises a washing tower and an air outlet pipe and an air inlet pipe connected to the upper and lower ends thereof. A washing pump at the bottom of the washing tower transports washing liquid in sequence along the washing pipeline to spray pipes arranged in multiple layers. The multiple layers of spray pipes are evenly staggered from top to bottom, and a cyclone is provided at the bottom of each layer of spray pipes.

[0007] Further optionally, a plurality of spiral nozzles are evenly installed at the lower portion of the spray pipe.

[0008] Further optionally, the cyclone includes an annular sleeve fixed on the inner wall of the washing tower, and the cyclone plates inside the annular sleeve are arranged in an overlapping annular shape with a spiral angle of 45° at the central axis position.

[0009] Further optionally, the swirl plate is arranged with its central axis position tilted downward by 10-20 degrees.

[0010] Further optionally, the washing pipeline is installed with a control valve.

[0011] Compared with the existing technology, the beneficial effect of the utility model is: the utility model allows the acetylene gas carrying tiny particles of carbide slag slurry to come into reverse contact with the washing liquid sprayed by the cross spray pipe through the cyclone in the washing tower, realizing the circulating liquid flushing of the multi-layer spraying of the washing tower, and impurities will not cause clogging, solving the problem of carbide slag slurry entrained in the acetylene gas and avoiding the problem of filler clogging, effectively ensuring the stable operation of the washing tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the practical cyclone;

[0014] Figure 3 This is the main view of the practical cyclone;

[0015] Figure 4 This is a schematic diagram of the practical multi-layer spray pipe arrangement structure;

[0016] Figure 5 It is a schematic diagram of the prior art of this utility;

[0017] In the figure: washing tower 1, washing pump 2, washing pipeline 3, spray pipe 4, spiral nozzle 5, cyclone 6, annular sleeve 7, swirl plate 8, air inlet pipe 9, air outlet pipe 10. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] like Figure 1 、 4 As shown, an acetylene gas cooling and washing tower includes a washing tower 1 and an air outlet pipe 10 and an air inlet pipe 9 connected at the upper and lower ends thereof. A washing liquid is sequentially transported to a multi-layered spray pipe 4 along a washing pipeline 3 through a washing pump 2 at the bottom of the washing tower 1. The multi-layer spray pipe 4 is evenly staggered from top to bottom. The spray pipe 4 is arranged in four layers. The four spray pipes 4 are arranged at a 45° angle. The evenly crossed spray pipes 4 ensure full-angle spray coverage and avoid dead corners in the spray washing. A cyclone 6 is provided at the lower part of each layer of the spray pipe 4.

[0020] like Figure 4 As shown, a plurality of spiral nozzles 5 are evenly installed at the lower part of the spray pipe 4. The number of spiral washing nozzles provided on each layer of the spray pipe 4 is ≥4, and the spacing between the washing nozzles on each layer is 330-860 mm.

[0021] like Figure 2 、 3As shown, the cyclone 6 includes an annular sleeve 7 fixed on the inner wall of the washing tower 1, and the cyclone plates inside the annular sleeve 7 are arranged in a circular overlapping manner at a central axis position with a spiral angle of 45 degrees.

[0022] like Figure 2 、 3 As shown, the swirl plate is set at a downward tilt of 10-20 degrees at the central axis position, which can increase the flow rate of condensed steam droplets and solid particulate impurities on the surface of the swirl plate 8, avoid the accumulation of these substances on the surface of the swirl plate 8, and improve the operating efficiency of the cyclone 6.

[0023] The washing pipe 3 is equipped with a control valve.

[0024] The implementation principle of an acetylene gas cooling and washing tower in the embodiment of the present application is as follows:

[0025] Acetylene gas from the generator enters the scrubbing tower 1 through the air inlet pipe 9 and moves upward. The scrubbing liquid at the bottom of the scrubbing tower 1 is pressurized by the scrubbing pump 2 and transported from the scrubbing pipe 3 to the multi-layered spray pipe 4. The scrubbing liquid is sprayed from the multiple evenly distributed spiral nozzles 5 of the spray pipe 4 and passes through the cyclone 6 on each layer together with the rising acetylene gas from the bottom. When the acetylene gas passes through the overlapping swirl plates 8 of the swirl plates 6, it is affected by the structure of the swirl plates 8 with a spiral angle of 45 degrees, causing the acetylene gas to produce a rotational motion. As a result, condensed steam droplets and solid particulate impurities in the acetylene gas are thrown out of the air flow by centrifugal force and deposited on the surface of the swirl plates 8. The gas flows and eventually reaches the bottom of the swirl plates 8 and falls, achieving the cleaning and removal of impurities and steam. The cleaned acetylene gas is discharged from the upper air outlet pipe 10. This prevents impurities from clogging, solves the problem of carbide slag slurry entrained in the acetylene gas, and avoids the problem of filler clogging, effectively ensuring the stable operation of the scrubbing tower 1.

[0026] Since the swirl plate 8 of the cyclone 6 is tilted downward by 10-20 degrees at the central axis position, the flow rate of condensed steam droplets and solid particulate impurities on the surface of the swirl plate 8 can be increased, thereby preventing these substances from accumulating on the surface of the swirl plate 8 and improving the operating efficiency of the cyclone 6;

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An acetylene gas cooling and washing tower, comprising a washing tower (1) and an outlet pipe (10) and an inlet pipe (9) connected to the upper and lower ends thereof, characterized in that: The washing liquid is sequentially transported from the bottom of the washing tower (1) to the spray pipes (4) arranged in multiple layers via a washing pump (2) along a washing pipeline (3). The spray pipes (4) in multiple layers are evenly staggered from top to bottom, and a cyclone (6) is provided at the lower part of each spray pipe (4).

2. An acetylene gas cooling and washing tower according to claim 1, characterized in that: A plurality of spiral nozzles (5) are evenly installed on the lower part of the spray pipe (4).

3. The acetylene gas cooling and washing tower according to claim 1, characterized in that: The cyclone (6) comprises an annular sleeve (7) fixed on the inner wall of the washing tower (1), and the cyclone plates inside the annular sleeve (7) are arranged in an overlapping annular manner at a central axis position with a spiral angle of 45 degrees.

4. The acetylene gas cooling and washing tower according to claim 3, characterized in that: The swirl plate is arranged with its central axis tilted downward by 10-20 degrees.

5. The acetylene gas cooling and washing tower according to claim 1, characterized in that: The washing pipeline (3) is equipped with a control valve.

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