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CN-224221069-U - Separating tower provided with gas distributor

CN224221069UCN 224221069 UCN224221069 UCN 224221069UCN-224221069-U

Abstract

The utility model discloses a separation tower provided with a gas distributor, which comprises a main tower cylinder body and a main cooling cylinder body, wherein the gas distributor comprises a short cylinder section and two circular ring plates, a plurality of square holes are formed in the short cylinder section in a penetrating manner, tear holes are formed in the circular ring plates located below in a penetrating manner, an angle-shaped plate is arranged on the short cylinder section, and the angle-shaped plate is opposite to an air inlet. The utility model has simple structure, no compound lamellar structure and convenient processing, manufacturing and assembly. The gas is separated by the angle-shaped plates and flows to two sides, flows to the upper part of the main tower body after passing through the square holes, the gas flows smoothly and eases, the impact force and noise are reduced, the resistance change at the air inlet is smooth, the operation is smooth, and the fluctuation change of the liquid level surface in main tower equipment is small. The cold medium in the main cooling can keep the upper end enclosure of the main tower in the package of the cold medium, thereby reducing the cold energy loss of the main tower. Liquid nitrogen output by the main cooling enters from the upper part of the main tower, so that the purity of nitrogen products at the outlet of the main tower is ensured.

Inventors

  • CHEN HONGWEI
  • GUO SHUHAN
  • TANG YI
  • ZHAO YIBO

Assignees

  • 杭州川空通用设备有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (10)

  1. 1. A separation tower provided with a gas distributor is characterized by comprising a main tower cylinder body and a main cooling cylinder body arranged at the upper end of the main tower cylinder body, wherein a cooling medium in the main cooling cylinder body is conveyed to the upper end of the main tower cylinder body, the gas distributor is arranged above the highest liquid level at the lower part of the main tower cylinder body, the gas distributor comprises a short cylinder section coaxially arranged in the main tower cylinder body and two circular plates respectively and horizontally arranged at the two ends of the short cylinder section, the outer wall of the circular plate is arranged on the inner wall of the main tower cylinder body, the short cylinder section is arranged on the inner wall of the circular plate, a plurality of square holes uniformly distributed along the circumferential direction are formed in the short cylinder section in a penetrating manner, a plurality of tear holes uniformly distributed along the circumferential direction are formed in the circular plate at the lower part, an angle plate is arranged on the short cylinder section, and the angle is opposite to an air inlet of the main tower cylinder body.
  2. 2. The separation tower of claim 1, wherein the horizontal cross section of the angle plate is L-shaped, the left and right ends of the angle plate are respectively arranged on the outer wall of the short cylinder section, the middle part of the angle plate is opposite to the air inlet, and a gap is formed between the upper and lower ends of the angle plate and the adjacent annular plates.
  3. 3. The separator of claim 2, wherein the lower end of the square hole is abutted against the annular plate positioned below, and the upper end of the square hole is positioned below the upper end of the angular plate.
  4. 4. A separation column according to any one of claims 1 to 3, wherein the distance between the two annular plates is 1.3 times or more the diameter of the air inlet.
  5. 5. A separation column according to any one of claims 1 to 3, wherein said air inlet is located between two of said annular plates, and a distance between an opening edge of said air inlet and an adjacent annular plate is 50mm or more.
  6. 6. A separation column according to any one of claims 1 to 3, wherein a reinforcing ring is provided on the outer wall of the upper end of the main column body, and the main cooling column body is provided on the upper end of the reinforcing ring.
  7. 7. A separation tower according to any one of claims 1-3 is characterized in that the cold medium is liquid nitrogen, a plate heat exchanger is arranged in the main cold cylinder, a nitrogen inlet for introducing nitrogen into the upper part of the plate heat exchanger is arranged at the upper part of the main cold cylinder, a liquid nitrogen outlet for outputting liquid nitrogen from the lower part of the plate heat exchanger is arranged at the lower part of the main cold cylinder, a liquid air inlet for introducing liquid air is arranged at the upper part of the main cold cylinder, an air outlet for outputting air is arranged at the upper end of the main cold cylinder, and a main cold liquid air outlet for outputting liquid air is arranged at the lower part of the main cold cylinder.
  8. 8. The separation column according to claim 7, wherein a blow-off pipe is provided at a lower portion of the main cooling cylinder, and the blow-off pipe is communicated with a communication position between the liquid nitrogen outlet and the plate heat exchanger.
  9. 9. A separation tower according to any one of claims 1-3, wherein a main cold liquid nitrogen inlet is formed in the upper end of the main tower barrel, a nitrogen product outlet is formed in the upper end of the main tower barrel, the nitrogen product outlet and the main cold liquid nitrogen inlet are located at the same height, and a liquid distributor and a collecting liquid distributor are sequentially arranged in the main tower barrel from top to bottom between the main cold liquid nitrogen inlet and the gas distributor.
  10. 10. The separation column of claim 9, wherein a resistance meter upper port is arranged on the outer wall of the main column body above the main cold liquid nitrogen inlet, a liquid level meter lower port is arranged on the lower end of the main column body, and a liquid level meter upper port and a resistance meter lower port are arranged on the outer wall of the main column body between the gas distributor and the collecting type liquid distributor.

Description

Separating tower provided with gas distributor Technical Field The utility model belongs to the technical field of gas separation, and particularly relates to a separation tower provided with a gas distributor. Background The general design system in the field of air separation equipment comprises a main tower, main cooling equipment and the like. The main tower design technology has the problems and disadvantages that 1, the main tower air inlet medium cannot enable the main tower medium to enter through a baffle plate to carry out energy mixing exchange along a designed path, 2, the main tower enters into a cylinder body to generate large medium fluid impact and possibly generate large noise, 3, the main tower air inlet medium cannot uniformly and effectively exchange heat with cooling medium descending on the upper part of the main tower in the cylinder body, 4, the main tower air inlet medium impact causes large equipment resistance change, and 5, the main tower air inlet medium impact causes large fluctuation change of the liquid level surface in equipment. The Chinese patent document with the publication number of CN210751960U discloses an adsorption tower of a nitrogen making machine, which uniformly distributes adsorption air to be separated through a gas distributor with a circular truncated cone structure, avoids the concentration of the adsorption air to be separated at one place for discharging, reduces adsorption efficiency, ensures that the inlet air to be separated is uniformly dispersed around a flow distribution block by utilizing an air inlet pipe and the flow distribution block, prepares for uniform distribution of the adsorption air to be separated, ensures uniform dispersion of gas through the arrangement of a plurality of first flow distribution areas, second flow distribution areas, inner distribution areas, outer distribution areas and main distribution areas, increases the contact area of the gas and an adsorbent, and ensures that the flow distribution areas and the distribution areas are mutually communicated by utilizing main air holes and auxiliary air holes, thereby avoiding overlarge air pressure in local areas and influencing the gas distribution. In the above-mentioned patent scheme, in order to disperse the gas that enters into the adsorption tower, the gas distributor has set up to multilayer structure, and this kind of multilayer structure's gas distributor not only volume and mass are big, and the degree of difficulty of processing equipment is also bigger moreover. In addition, in the above patent schemes, after the heat exchange is performed in the middle part of the adsorption tower, the heat loss in the upper part of the adsorption tower is obvious, the temperature rise is shown, the smooth proceeding of the gas process flow is not facilitated, and the purity of the produced gas is insufficient. Disclosure of utility model In order to solve the technical problems that in the prior art, the high temperature of the upper part of the adsorption tower is not beneficial to smooth process flow and high purity output of gas, and the distributor of the lower part of the adsorption tower is complex in structure, so that the volume and the mass are large and the processing difficulty is high. An object of the present utility model is to provide a separation tower provided with a gas distributor, in which a main cooling is provided at an upper end of the main tower, a cooling medium in the main cooling maintains a low temperature at an upper portion of the main tower while performing heat exchange, and in which the gas distributor is provided as two circular plates and one short cylindrical shell, thereby simplifying a structure while dispersing gas introduced into the main tower. The separating tower comprises a main tower cylinder body and a main cooling cylinder body arranged at the upper end of the main tower cylinder body, wherein a cooling medium in the main cooling cylinder body is conveyed to the upper end of the main tower cylinder body, the gas distributor is arranged above the highest liquid level at the lower part of the main tower cylinder body, the gas distributor comprises a short cylinder section coaxially arranged in the main tower cylinder body and two circular plates respectively and horizontally arranged at two ends of the short cylinder section, the outer wall of the circular plate is arranged on the inner wall of the main tower cylinder body, the short cylinder section is arranged on the inner wall of the circular plate, a plurality of square holes uniformly distributed along the circumferential direction are penetratingly arranged on the short cylinder section, a plurality of tear holes uniformly distributed along the circumferential direction are penetratingly arranged on the circular plate arranged on the lower part, the short cylinder section is provided with an angle plate, and the angle plate is opposite to the air inlet of the main tower cylinder bod