Search

CN-121976020-A - Quick cooling arrangement of outer wall in steel pipe

CN121976020ACN 121976020 ACN121976020 ACN 121976020ACN-121976020-A

Abstract

The invention discloses a steel pipe inner and outer wall quick cooling device which comprises an outer wall cooling mechanism, wherein the outer wall cooling mechanism comprises an upper body and a lower body, the upper body and the lower body are arc-shaped plate bodies with a plurality of first channels inside, the inner wall cooling mechanism comprises a plurality of strip-shaped plate bodies which are connected into an expandable cylinder body through elastic rings, each strip-shaped plate body is internally provided with a second channel, heat conduction oil circularly flows in each first channel and each second channel respectively, the inner supporting mechanism comprises a central shaft and a cage-shaped supporting frame which is connected to the periphery of the central shaft through connecting rods, and a plurality of convex rings are arranged on the cage-shaped supporting frame at equal intervals.

Inventors

  • Xia renai
  • YU LIZHEN
  • Xia Zhengda
  • ZHANG JINDI
  • LI MEI

Assignees

  • 浙江聚隆特材集团有限公司

Dates

Publication Date
20260505
Application Date
20260319

Claims (10)

  1. 1. The utility model provides a steel pipe inner and outer wall rapid cooling equipment which characterized in that includes: the outer wall cooling mechanism comprises an upper body (1) and a lower body (2), wherein the upper body (1) and the lower body (2) are arc-shaped plate bodies with a plurality of first channels (4) inside, the upper body (1) and the lower body (2) are buckled to form a cylinder, and the inner diameter of the cylinder corresponds to the outer diameter of the steel pipe (3); The inner wall cooling mechanism (5), the inner wall cooling mechanism (5) comprises a plurality of strip-shaped plate bodies (6), a second channel (7) is respectively arranged in each strip-shaped plate body (6), a contact plate (8) is respectively fixed on the outer side of each strip-shaped plate body (6), the outer side of each contact plate (8) is in an arc shape corresponding to the inner wall of the steel pipe (3), a plurality of raised strips (9) are respectively arranged on the inner side of each strip-shaped plate body (6), each strip-shaped plate body (6) is connected into an expandable cylinder through a plurality of elastic rings (10), and each elastic ring (10) is respectively connected between the raised strips (9) of each strip-shaped plate body (6); the heat conduction oil circularly flows in each of the first channel (4) and the second channel (7); the inner support mechanism comprises a central shaft (11) and a cage-shaped support frame (12) connected to the periphery of the central shaft (11) through a connecting rod (14), and a plurality of convex rings (13) are equidistantly arranged on the cage-shaped support frame (12); When the steel pipe (3) is cooled, the steel pipe (3) is arranged between the upper body (1) and the lower body (2), the outer wall of the steel pipe (3) is abutted against the inner walls of the upper body (1) and the lower body (2), the inner wall cooling mechanism (5) is arranged in the steel pipe (3), the inner supporting mechanism is inserted into the inner wall cooling mechanism (5) to expand the inner wall cooling mechanism (5), the convex rings (13) are abutted against the convex strips (9) of the strip-shaped plate body (6), the outer side of the contact plate (8) of the strip-shaped plate body (6) is abutted against the inner wall of the steel pipe (3), and the gaps among the central shaft (11), the cage-shaped supporting frames (12) and the convex strips (9) and the gaps among the strip-shaped plate bodies (6) form an air flow channel for air to pass through, and a fan is arranged at one end of the steel pipe (3) to accelerate the flow rate of the air passing through the air flow channel.
  2. 2. The rapid cooling device for the inner wall and the outer wall of the steel pipe according to claim 1, wherein supporting feet (15) are further arranged at the bottom of the lower body (2), the lower body (2) forms a bracket, and the upper body (1) is connected above the lower body (2) in a lifting manner.
  3. 3. The rapid cooling device for inner and outer walls of steel pipes according to claim 2, wherein one or both ends of the upper body (1) and the lower body (2) are respectively provided with a first joint communicated with the first channel (4), one or both ends of each long strip-shaped plate body (6) are respectively provided with a second joint communicated with the second channel (7), and each first joint and each second joint are respectively connected with the heat conduction oil pool through a connecting pipe and a circulating pump.
  4. 4. A steel pipe inner and outer wall rapid cooling apparatus according to claim 3, wherein the first channel (4) and the second channel (7) are zigzag channels or serpentine channels.
  5. 5. The rapid cooling device for inner and outer walls of steel pipes according to claim 4, wherein one side of each long strip-shaped plate body (6) is respectively provided with a positioning groove (16), a steel sheet (17) is embedded in each positioning groove (16), the other side of each long strip-shaped plate body (6) is respectively embedded with a steel positioning strip (18), a permanent magnet (19) is fixed in each positioning strip (18), and two sides of each adjacent long strip-shaped plate body (6) are respectively attracted in an unexpanded state of the inner wall cooling mechanism (5).
  6. 6. The rapid cooling device for the inner wall and the outer wall of the steel pipe according to claim 5, further comprising a displaceable limit baffle, wherein the fan is arranged behind the limit baffle, the limit baffle is used for limiting one end of the cooling mechanism (5) of the inner wall, and the limit baffle is moved away to expose the fan after the inner supporting mechanism is inserted.
  7. 7. The rapid cooling device for inner and outer walls of steel pipes according to claim 6, wherein a plurality of counter bores (20) are respectively arranged on two sides of each contact plate (8), fixing holes corresponding to the counter bores (20) are respectively arranged on each long-strip-shaped plate body (6), and each contact plate (8) is fixed on the long-strip-shaped plate body (6) through fixing bolts (21).
  8. 8. A steel pipe inner and outer wall rapid cooling apparatus according to claim 7, wherein each of said elongated plate bodies (6) is further provided with a thickened portion (22) on both sides thereof.
  9. 9. The rapid cooling device for inner and outer walls of steel pipes according to claim 8, wherein the cage-shaped supporting frame (12) is formed by a plurality of rod bodies arranged at the periphery of the central shaft (11), each convex ring (13) is welded at the periphery of each rod body, the connecting rods (14) are provided with a plurality of groups, each group of connecting rods (14) are respectively welded between each rod body and the central shaft (11), and the front end of each rod body is inwards bent to form a frustum-shaped end part with the front end of the central shaft (11).
  10. 10. The rapid cooling device for the inner and outer walls of the steel pipe according to claim 9, wherein heat exchange fins (23) are further arranged on the outer sides of the upper body (1) and the lower body (2) respectively.

Description

Quick cooling arrangement of outer wall in steel pipe Technical Field The invention relates to equipment for rapidly cooling the inner wall and the outer wall of a steel pipe, in particular to equipment suitable for rapidly cooling the inner wall and the outer wall of an ultra-clean thin-wall steel pipe. Background In the prior art, after heat treatment, the ultra-clean thin-wall steel pipe is cooled by adopting a water cooling or natural cooling mode, and the method has the defects that the time required by natural cooling is long, the processing period is greatly prolonged, the contact time between the surface of the steel pipe and the inner and outer surfaces of the steel pipe and water is different, the heat stress generated in the steel pipe possibly causes deformation of the steel pipe due to the thin pipe wall of the steel pipe, a large amount of water vapor is generated in the cooling process of the steel pipe, water spots are easily left on the inner wall and the outer wall of the steel pipe, the cleanliness of the steel pipe is reduced, the subsequent treatment is required, and finally the water cooling mode has the defect of large water consumption. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides the steel pipe inner and outer wall rapid cooling equipment which can prevent the ultra-clean thin-wall steel pipe from deforming in the cooling process, has no steam generation and can maintain the cleanliness of the inner and outer walls of the steel pipe. The technical scheme of the invention is that the rapid cooling equipment for the inner wall and the outer wall of the steel pipe comprises the following components: The outer wall cooling mechanism comprises an upper body and a lower body, the upper body and the lower body are arc-shaped plate bodies with a plurality of first channels inside, a cylinder is formed after the upper body and the lower body are buckled, and the inner diameter of the cylinder corresponds to the outer diameter of the steel pipe; The inner wall cooling mechanism comprises a plurality of strip-shaped plate bodies, wherein the strip-shaped plate bodies are respectively provided with a second channel, the outer sides of the strip-shaped plate bodies are respectively fixed with a contact plate, the outer sides of the contact plates are arc-shaped corresponding to the inner wall of the steel pipe, the inner sides of the strip-shaped plate bodies are respectively provided with a plurality of raised strips, the strip-shaped plate bodies are connected into an expandable cylinder body through a plurality of elastic rings, and the elastic rings are respectively connected between the raised strips of the strip-shaped plate bodies; heat conducting oil circularly flows in each of the first channel and the second channel; The inner supporting mechanism comprises a central shaft and a cage-shaped supporting frame connected to the periphery of the central shaft through a connecting rod, and a plurality of convex rings are equidistantly arranged on the cage-shaped supporting frame; When the steel pipe is cooled, the steel pipe is arranged between the upper body and the lower body, the outer wall of the steel pipe is abutted against the inner walls of the upper body and the lower body, the inner wall cooling mechanism is arranged in the steel pipe, the inner supporting mechanism is inserted into the inner wall cooling mechanism to expand the inner wall cooling mechanism, the convex rings are abutted against the convex strips of the long strip plate bodies, the outer sides of the contact plates of the long strip plate bodies are abutted against the inner wall of the steel pipe, the gaps among the central shaft, the cage-shaped supporting frames and the convex strips and the gaps among the long strip plate bodies form an air flow channel for air to pass through, and a fan is arranged at one end of the steel pipe to accelerate the flow rate of the air passing through the air flow channel. Further, the bottom of the lower body is also provided with supporting feet, the lower body forms a bracket, and the upper body is connected above the lower body in a lifting manner. Further, one end or both ends of the upper body and the lower body are respectively provided with a first joint communicated with the first channel, one end or both ends of each strip-shaped plate body are respectively provided with a second joint communicated with the second channel, and each first joint and each second joint are respectively connected with the heat conduction oil pool through a connecting pipe and a circulating pump. Specifically, the first channel and the second channel are zigzag channels or serpentine channels. Further, one side of each long strip-shaped plate body is respectively provided with a positioning groove, a steel sheet is embedded in the positioning groove, the other side of each long strip-shaped plate body is respectively embedded with a steel pos