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CN-122015529-A - Compressed air waste heat recoverer

CN122015529ACN 122015529 ACN122015529 ACN 122015529ACN-122015529-A

Abstract

The invention discloses a compressed air waste heat recoverer which comprises a shell, an end cover, a spiral heat exchange pipe fitting, a guide cylinder, a guide plate, a supporting piece and a monitoring interface component, wherein a compressed air inlet, a compressed air outlet, a cooling medium inlet and a cooling medium outlet are formed in the side wall of the shell, the end cover is arranged at two axial ends of the shell, the end cover is connected with the shell through a flange structure, the spiral heat exchange pipe fitting is arranged in an inner cavity of the shell, two ends of the spiral heat exchange pipe fitting are respectively communicated with a compressed air inlet and a compressed air outlet in a sealing mode, the guide cylinder is sleeved on the outer side of the spiral heat exchange pipe fitting, the guide cylinder and the shell are coaxially arranged, and the guide plate is arranged between the inner wall of the shell and the outer wall of the guide cylinder. The invention realizes the deep heat exchange of fluid by the cooperation of the spiral heat exchange pipe fitting, the guide cylinder and the guide plate, improves the efficiency, monitors the inlet and the outlet, and precisely controls equipment to ensure stable operation.

Inventors

  • HUANG ZHIXIN
  • HONG XIAOMING

Assignees

  • 广东格林达能源科技有限公司

Dates

Publication Date
20260512
Application Date
20260203

Claims (10)

  1. 1. A compressed air waste heat recovery device, comprising: The device comprises a shell (1), an end cover (2), a spiral heat exchange pipe fitting (14), a guide cylinder (10), a guide plate (12), a supporting piece (15) and a monitoring interface component, wherein a compressed air inlet (5), a compressed air outlet (6), a cooling medium inlet (3) and a cooling medium outlet (4) are formed in the side wall of the shell (1); The spiral heat exchange pipe fitting (14) is arranged in the inner cavity of the shell (1), and two ends of the spiral heat exchange pipe fitting (14) are respectively communicated with the compressed air inlet and the compressed air outlet in a sealing way; The guide cylinder (10) is sleeved on the outer side of the spiral heat exchange pipe fitting (14), the guide cylinder (10) and the shell (1) are coaxially arranged, and a through hole (11) is formed in the side wall of the guide cylinder (10); The guide plate (12) is arranged between the inner wall of the shell (1) and the outer wall of the guide cylinder (10), and the guide plate (12) is fixedly connected with the inner wall of the shell (1); the support piece (15) is arranged on the inner wall of the shell (1), and the support piece (15) is fixedly connected with the spiral heat exchange pipe fitting (14); the monitoring interface component comprises a first monitoring interface (7) and a second monitoring interface (8), and the first monitoring interface (7) and the second monitoring interface (8) are respectively arranged on the pipe bodies of the compressed air inlet (5), the compressed air outlet (6), the cooling medium inlet (3) and the cooling medium outlet (4).
  2. 2. The compressed air waste heat recovery device according to claim 1, wherein an annular groove is formed in one side, close to the shell (1), of the end cover (2), a sealing piece (9) is embedded in the annular groove, and the sealing piece (9) is connected with the annular groove.
  3. 3. The compressed air waste heat recovery device according to claim 1, wherein the two axial ends of the guide cylinder (10) are respectively arranged at intervals with the inner sides of the end covers (2), one end of the guide cylinder (10) is connected with the end covers (2) through a bracket, an inner supporting piece (13) is arranged in the other end of the guide cylinder (10), the inner supporting piece (13) is fixed with the end covers (2), and the outer diameter of the inner supporting piece (13) is identical with the inner diameter of the guide cylinder (10).
  4. 4. A compressed air waste heat recovery apparatus according to claim 1, wherein the perforations (11) are uniformly distributed along the axial direction and the circumferential direction of the guide cylinder (10), and the perforations (11) penetrate through the side wall of the guide cylinder (10).
  5. 5. The compressed air waste heat recovery apparatus according to claim 1, wherein the guide plate (12) has an arc-shaped plate structure, the arc-shaped profile of the guide plate (12) is matched with the profile of the inner wall of the housing (1), and the inclination direction of the guide plate (12) is consistent with the direction of the cooling medium flowing from the cooling medium inlet (3) to the cooling medium outlet (4).
  6. 6. The compressed air waste heat recovery device according to claim 1, wherein the supporting piece (15) is fixedly connected with the inner wall of the shell (1), and the supporting piece (15) is provided with a clamping groove which is matched with the outer diameter of the spiral heat exchange pipe fitting (14); The outside both sides that lie in the draw-in groove of support piece (15) all are provided with the pipe clamp, the outside of spiral heat transfer pipe fitting (14) is located to pipe clamp cover, pipe clamp and spiral heat transfer pipe fitting (14) and draw-in groove all laminate and set up.
  7. 7. The compressed air waste heat recovery apparatus according to claim 1, wherein the sealing member (9) has an annular structure, the sealing member (9) is a nitrile rubber sealing gasket, and the inner diameter of the sealing member (9) is larger than the inner wall diameter of the housing (1).
  8. 8. The compressed air waste heat recovery device according to claim 1, wherein the first monitoring interface (7) and the second monitoring interface (8) are threaded connectors, the first monitoring interface (7) and the second monitoring interface (8) are respectively welded and fixed with the cooling medium inlet (3), the cooling medium outlet (4), the compressed air inlet (5) and the compressed air outlet (6), and the first monitoring interface (7) and the second monitoring interface (8) are perpendicular to the axes of the cooling medium inlet (3), the cooling medium outlet (4), the compressed air inlet (5) and the compressed air outlet (6).
  9. 9. The compressed air waste heat recovery apparatus according to claim 1, wherein the number of the guide plates (12) is four, the four guide plates (12) are uniformly distributed along the circumferential direction of the casing (1), and the guide plates (12) are arranged at intervals along the axial direction of the casing (1).
  10. 10. The compressed air waste heat recovery device according to claim 1, wherein four supporting pieces (15) are arranged, the four supporting pieces (15) are uniformly distributed at equal intervals, a second strip-shaped groove (17) is formed in one side, close to the cooling medium inlet (3) and the compressed air inlet (5), of the inner portion of the guide cylinder (10), and a first strip-shaped groove (16) is formed in one side, away from the second strip-shaped groove (17), of the inner portion of the guide cylinder (10).

Description

Compressed air waste heat recoverer Technical Field The invention relates to the field of waste heat recovery, in particular to a compressed air waste heat recoverer. Background The compressed air waste heat recoverer belongs to the field of industrial heat recovery and energy-saving equipment, is mainly applied to industries such as chemical industry, mechanical manufacturing, electric power and the like which need a large amount of compressed air, is used for recovering waste heat generated in the preparation process of the compressed air and converting the waste heat into usable heat energy so as to reduce the energy loss of an industrial system, and is important equipment for improving the utilization efficiency of the whole energy. In order to improve the problem that the heat exchange efficiency of the existing compressed air heat exchanger is limited, the common solution is to increase the number of straight pipe type heat exchange pipes or adjust the angle of a single flow guide component, try to enlarge the heat exchange area or change the flow direction of local fluid to improve the effect, but the straight pipe structure enables the fluid to flow along a single path all the time, even if the flow guide component is adjusted, the flow guide component can only change the flow direction of local fluid, so that the compressed air and a cooling medium cannot form a cross flow and turbulent flow combined contact mode, the fluid contact is still insufficient, and the heat exchange efficiency is improved to a limited extent; Meanwhile, the existing equipment is used for monitoring the running state, a single monitoring point is arranged at a certain key inlet and outlet, but all inlets and outlets of compressed air and cooling medium are not covered, so that complete heat exchange flow parameters cannot be obtained, the running state of the equipment is difficult to accurately control, abnormality is still easily caused by incomplete monitoring, and the running stability of the equipment is insufficient. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a compressed air waste heat recoverer so as to solve the problems in the background art. In order to achieve the purpose, the invention provides the following technical scheme that the compressed air waste heat recoverer comprises: The device comprises a shell, an end cover, a spiral heat exchange pipe fitting, a guide cylinder, a guide plate, a supporting piece and a monitoring interface component, wherein the shell is of a cylindrical hollow structure, and a compressed air inlet, a compressed air outlet, a cooling medium inlet and a cooling medium outlet are formed in the side wall of the shell; the spiral heat exchange pipe fitting is arranged in the inner cavity of the shell, and two ends of the spiral heat exchange pipe fitting are respectively communicated with the compressed air inlet and the compressed air outlet in a sealing way; The guide cylinder is sleeved on the outer side of the spiral heat exchange pipe fitting, the guide cylinder and the shell are coaxially arranged, and quincuncial perforations are formed in the side wall of the guide cylinder; the guide plate is arranged between the inner wall of the shell and the outer wall of the guide cylinder, and is fixedly connected with the inner wall of the shell; the support piece is arranged on the inner wall of the shell and is fixedly connected with the spiral heat exchange pipe fitting; the monitoring interface component comprises a first monitoring interface and a second monitoring interface, the first monitoring interface and the second monitoring interface are respectively arranged on the pipe bodies of the compressed air inlet, the compressed air outlet, the cooling medium inlet and the cooling medium outlet, and the monitoring interface component is fixedly connected with the corresponding pipe bodies; The spiral heat exchange pipe fitting is matched with the guide cylinder and the guide plate, so that the heat exchange effect between fluids can be enhanced, the waste heat recovery efficiency is improved, the flange-connected end cover is convenient for maintenance and overhaul of internal components of equipment, the monitoring interface assembly can master parameters of each port in real time, and stable operation of the equipment is ensured. Preferably, a ring groove is formed in one side, close to the shell, of the end cover, a sealing piece is embedded in the ring groove, and the sealing piece is connected with the ring groove; the sealing element embedded in the end cover is tightly connected with the annular groove through a press-fitting process, the sealing element is uniformly deformed by controlling pressure during press-fitting, the inner wall of the annular groove is filled, no gap is reserved between the sealing element and the annular groove, and leakage of compressed air or cooling medium is prevented. Preferably, the two axial ends o