Search

CN-224221080-U - Membrane separation nitrogen making device

CN224221080UCN 224221080 UCN224221080 UCN 224221080UCN-224221080-U

Abstract

The utility model discloses a membrane separation nitrogen making device, and relates to the technical field of gas separation equipment. The utility model comprises a frame, wherein a separating cylinder is arranged in an inner cavity of the frame, one end of the separating cylinder is provided with a control component, one side of the control component is fixedly connected with a pretreatment component through a pipeline, and one side of the pretreatment component is fixedly connected with an air compressor through a pipeline. According to the utility model, the air compressor is matched with the pretreatment component, the heat exchanger and the filter are utilized to realize oil removal, dust removal, water removal and constant temperature treatment on air, a clean and temperature-stable air source can be provided for the subsequent nitrogen preparation process, the influence of impurities and temperature fluctuation on a separation membrane group is effectively avoided, meanwhile, the driving motor drives the cam to rotate, so that the sealing plug reciprocates under the action of boss extrusion and spring rebound, and air enters the inner cavity of the separation cylinder in a pulse mode, and the air supply mode can enhance the dynamic characteristic of air flow and is beneficial to improving the distribution uniformity of the air in the separation cylinder.

Inventors

  • ZHANG YAN
  • FU CHAOYU
  • Xin Changjiang
  • TAN TIANWEN
  • LI YIFEI

Assignees

  • 山东清越节能科技有限公司

Dates

Publication Date
20260512
Application Date
20250604

Claims (8)

  1. 1. The membrane separation nitrogen production device comprises a frame (1) and is characterized in that a separation barrel (2) is arranged in an inner cavity of the frame (1), a control component (3) is arranged at one end of the separation barrel (2), a pretreatment component (4) is fixedly connected to one side of the control component (3) through a pipeline, an air compressor (5) is fixedly connected to one side of the pretreatment component (4) through a pipeline, a separation membrane group (6) is arranged in the inner cavity of the separation barrel (2), and a gas homogenizing component (7) is arranged at one side of the inner cavity of the separation barrel (2); The control assembly (3) comprises a sealing shell (301), one side of the sealing shell (301) is fixedly connected with one end of a separating cylinder (2) through a pipeline, the bottom of an inner cavity of the sealing shell (301) is fixedly connected with a spring (302), the top of the spring (302) is fixedly connected with a sealing plug (303), an air vent (304) is formed in the surface of the sealing plug (303), the top of the sealing plug (303) is fixedly connected with a boss (305), the top of the inner cavity of the sealing shell (301) is fixedly connected with a driving motor (306), and an output shaft of the driving motor (306) is fixedly connected with a cam (307).
  2. 2. The membrane separation nitrogen making device according to claim 1, wherein the gas homogenizing component (7) comprises a mounting rod (701), one end of the mounting rod (701) is fixedly connected with the inner wall of the separating cylinder (2), a mounting block (702) is fixedly connected between the mounting rods (701), one side of the mounting block (702) is fixedly connected with a stepping motor (703), and an output shaft of the stepping motor (703) is fixedly connected with a gas homogenizing disc (704).
  3. 3. The membrane separation nitrogen production apparatus as claimed in claim 1, wherein the surface of the cam (307) is provided with a mounting groove, and an inner cavity of the mounting groove is provided with a roller.
  4. 4. The membrane separation nitrogen production device according to claim 2, wherein the surface of the gas equalizing disc (704) is movably connected with an annular guide rail, and the outer wall of the annular guide rail is fixedly connected with the inner wall of the separation barrel (2).
  5. 5. The membrane separation nitrogen production device of claim 1, wherein an oxygen pipe is arranged at the top of the separation cylinder (2), a nitrogen pipe is arranged at one end of the separation cylinder (2), and a mounting disc is fixedly connected with one end of the oxygen pipe and one end of the nitrogen pipe, which are far away from the separation cylinder (2).
  6. 6. The membrane separation nitrogen making device according to claim 1, wherein the pretreatment component (4) comprises a fixing frame (401), one side of the fixing frame (401) is fixedly connected with one side of the sealing shell (301) through a pipeline, a heat exchanger (402) is arranged on one side of an inner cavity of the fixing frame (401), and a filter (403) is fixedly connected on the other side of the inner cavity of the fixing frame (401).
  7. 7. The membrane separation nitrogen making device according to claim 1, wherein the bottoms of the frame (1) and the air compressor (5) are fixedly connected with a bottom plate, and a moving wheel is arranged at the bottom of the bottom plate.
  8. 8. The membrane separation nitrogen making device according to claim 1, wherein the inner cavity of the frame (1) is fixedly connected with a supporting plate, and the top of the supporting plate is fixedly connected with the bottom of the separation cylinder (2) through a supporting pad.

Description

Membrane separation nitrogen making device Technical Field The utility model belongs to the technical field of gas separation equipment, and particularly relates to a membrane separation nitrogen making device. Background The membrane separation nitrogen production device is equipment for separating nitrogen from other gases such as oxygen and the like in the air by utilizing the difference of permeation rates of polymer membranes on different gas molecules, and has the working principle that under the driving of pressure, small molecular gases such as oxygen, water vapor and the like in the air preferentially permeate through a separation membrane, and the nitrogen is enriched on the other side of the membrane to obtain high-purity nitrogen due to the fact that the molecules are larger and the permeation speed is slower; However, the existing membrane separation nitrogen production device is simple in air inlet structure, is usually connected by a simple pipeline, air is continuously input into a membrane separation assembly through the pipeline, and in the actual use process, the simple air inlet mode can continuously increase the pressure in the membrane separation assembly and lead to uneven distribution along with the continuous input of the air, so that the separation effect of nitrogen is negatively influenced, the service life of the membrane is shortened due to the excessively high pressure, the separation efficiency is reduced, the membrane separation effects in different areas are inconsistent due to the uneven pressure distribution, and the purity and stability of produced nitrogen are difficult to ensure; To this end, we provide a membrane separation nitrogen making apparatus to solve the above problems. Disclosure of utility model The utility model aims to provide a membrane separation nitrogen making device, which solves the problems that the air inlet structure of the membrane separation nitrogen making device in the prior art is simpler, the uniform distribution of air inlet cannot be ensured, the non-uniform membrane separation effect of different areas can be caused by the uneven air inlet pressure distribution, and the purity and stability of produced nitrogen are difficult to ensure by the cooperation of a control component and an air homogenizing component. In order to solve the technical problems, the utility model is realized by the following technical scheme. The utility model relates to a membrane separation nitrogen production device which comprises a frame, wherein a separating cylinder is arranged in an inner cavity of the frame, one end of the separating cylinder is provided with a control component, one side of the control component is fixedly connected with a pretreatment component through a pipeline, one side of the pretreatment component is fixedly connected with an air compressor through a pipeline, the inner cavity of the separating cylinder is provided with a separating membrane group, one side of the inner cavity of the separating cylinder is provided with an air homogenizing component, the control component comprises a sealing shell, one side of the sealing shell is fixedly connected with one end of the separating cylinder through a pipeline, the bottom of the inner cavity of the sealing shell is fixedly connected with a spring, the top of the spring is fixedly connected with a sealing plug, the surface of the sealing plug is provided with an air vent, the top of the sealing plug is fixedly connected with a boss, the top of the rear side of the inner cavity of the sealing shell is fixedly connected with a driving motor, and an output shaft of the driving motor is fixedly connected with a cam. The utility model is further arranged that the air homogenizing component comprises the mounting rods, one ends of the mounting rods are fixedly connected with the inner wall of the separating cylinder, the mounting blocks are fixedly connected between the mounting rods, one sides of the mounting blocks are fixedly connected with the stepping motor, the output shaft of the stepping motor is fixedly connected with the air homogenizing disc, the stepping motor is started, the output shaft of the stepping motor drives the air homogenizing disc to rotate, and air flow is uniformly discharged to the separating membrane group through meshes on the surface of the rotating air homogenizing disc, so that the separating effect is better. The utility model is further arranged that the surface of the cam is provided with the mounting groove, the inner cavity of the mounting groove is provided with the roller, the roller on one side of the cam intermittently contacts with the boss on the top of the sealing plug along with the rotation of the cam, and the roller can reduce the friction force between the surface of the cam and the boss. The utility model is further arranged that the surface of the air homogenizing disc is movably connected with the annular guide rail, the outer wall of the annul