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CN-224214972-U - Nodular cast iron pipe joint heat preservation structure for heating power

CN224214972UCN 224214972 UCN224214972 UCN 224214972UCN-224214972-U

Abstract

The utility model discloses a nodular cast iron pipe joint heat insulation structure for heating power, which comprises an inserting pipe and a connecting pipe, wherein one end of the inserting pipe is provided with an inserting port, one end of the connecting pipe is provided with a connecting port, and the inserting port is inserted into the connecting port. The utility model relates to the technical field of joint coating heat preservation of a bulb tube structure, in particular to a heat-power nodular cast iron pipe joint heat preservation structure, which is characterized in that a flexible heat preservation layer is wound and filled in a joint reserved gap between a plug-in joint and a socket, a second winding layer is utilized to cover a joint, heat loss at the joint is effectively reduced, a plug-in joint limiting groove and a socket limiting groove are arranged and are embedded in the joint limiting groove in cooperation with a limiting belt, and the whole joint coating heat preservation structure is tightly wrapped by an outer protective sleeve, so that the whole joint coating heat preservation structure can still keep stable when a pipeline stretches or receives external force.

Inventors

  • SUN HUI
  • JIANG WENWEN
  • LIU AIDONG
  • ZHU TAO
  • ZHANG XUELAI

Assignees

  • 国铭铸管股份有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (9)

  1. 1. The nodular cast iron pipe joint heat preservation structure for heating power comprises an inserting pipe (6) and a receiving pipe (8), and is characterized in that an inserting port (601) is arranged at one end of the inserting pipe (6), a receiving port (801) is arranged at one end of the receiving pipe (8), and the inserting port (601) is inserted into the receiving port (801); The flexible heat-insulating layer (7) is wound and filled in the reserved gap between the plug-in interface (601) and the socket (801), and the height of the outermost layer of the flexible heat-insulating layer (7) is consistent with that of the outer wall of the socket (801); The second winding layer (9) is wound and stuck on the outer side of the flexible heat-insulating layer (7), and the joint of the flexible heat-insulating layer (7) with the socket (801) and the plug interface (601) is covered; the outer sides of the plug tube (6) and the socket tube (8) are respectively sleeved with a protective sleeve (2), one end of the plug port (601) can be covered by the corresponding protective sleeve (2), and one end of the socket port (801) can be covered by one end of the corresponding protective sleeve (2).
  2. 2. The thermal spheroidal graphite cast iron pipe joint insulation structure for heat power use according to claim 1, wherein an annular plug joint limiting groove (5) is formed in the arc-shaped outer wall of the plug pipe (6) corresponding to one end of the plug joint (601), and an annular socket joint limiting groove (10) is formed in the arc-shaped outer wall of the socket pipe (8) corresponding to one end of the socket joint (801).
  3. 3. The heat insulation structure for the spheroidal graphite cast iron pipe joint for heating power according to claim 2, further comprising limiting belts (4), wherein the limiting belts (4) are respectively wound on each protective sleeve (2), the limiting belts (4) are embedded into the corresponding plug joint limiting grooves (5) and socket joint limiting grooves (10), and two ends of each limiting belt (4) are fixedly connected.
  4. 4. The heat insulation structure for the spheroidal graphite cast iron pipe joint for heating power according to claim 3, further comprising an outer protective sleeve (1) sleeved on the limiting belt (4) and capable of wrapping the two limiting belts (4).
  5. 5. A heat insulation structure for a spheroidal graphite cast iron pipe joint for heating power according to claim 4, wherein a first winding layer (3) is wound on the outer side of each limit belt (4), and the first winding layer (3) is arranged between the outer protective sleeve (1) and the limit belt (4).
  6. 6. The heat insulation structure for a spheroidal graphite cast iron pipe joint for heating power according to claim 5, wherein the outer protective sleeve (1) is a heat shrinkage sleeve, a round hole (101) is formed at a position corresponding to the reserved hole of the protective sleeve (2), and the outer protective sleeve (1) is used for tightly wrapping the lap joint of the first winding layer (3) and the two protective sleeves (2).
  7. 7. A heat insulation structure for a spheroidal graphite cast iron pipe joint for heating power according to claim 6, wherein the protective sleeve (2) is a rubber sleeve which can be folded.
  8. 8. The heat insulation structure for the spheroidal graphite cast iron pipe joint for heating power according to claim 7, wherein the limiting belt (4) is a stainless steel belt, and two ends of the limiting belt (4) are fastened by a manual packer.
  9. 9. The heat insulation structure for the spheroidal graphite cast iron pipe joint for heating power according to claim 8, wherein the first winding layer (3) adopts a single-sided waterproof adhesive tape, the second winding layer (9) adopts a double-sided waterproof adhesive tape, and the winding and pasting number of layers is more than or equal to 2.

Description

Nodular cast iron pipe joint heat preservation structure for heating power Technical Field The utility model relates to the technical field of joint coating heat preservation of a bulb tube structure, in particular to a heat-insulation structure of a ductile cast iron tube joint for heating power. Background In the field of heat transport, ductile cast iron pipes are widely used in heat pipe systems by virtue of their excellent properties such as high strength, corrosion resistance, etc. However, the joint part of the pipeline is always a weak link in the heat transmission process, and the joint is poor in heat insulation performance and insufficient in structural stability, so that heat is easily dissipated, the energy utilization efficiency is reduced, the pipeline corrosion is possibly caused, and the service life of the pipeline is shortened. The traditional nodular cast iron pipe joint heat preservation structure, part only simply adopts single heat preservation material to fill the interface, fails to effectively prevent heat to pass through interface clearance transmission, and the heat preservation effect is not good enough, and waterproof and the sealed consideration of interface department are not enough, and inside the moisture was permeated into the interface easily, corrodes heat preservation material and pipeline, further reduces heat preservation performance and the security of pipeline. In view of the foregoing, there is a need for a thermal spheroidal graphite cast iron pipe joint insulation structure that can improve heat preservation performance and waterproof sealing performance. Disclosure of utility model The utility model aims to solve the technical problems of providing the spheroidal graphite cast iron pipe joint heat insulation structure for heating power, which is characterized in that a flexible heat insulation layer is wound and filled in a reserved gap between an inserting port and a bearing port, a second winding layer is used for covering a joint, heat loss at the joint is effectively reduced, an inserting port limiting groove and a bearing port limiting groove are arranged and are embedded in the inserting port limiting groove and the bearing port limiting groove in cooperation with a limiting belt, and an outer protective sleeve is tightly wrapped, so that the whole joint heat insulation structure can still keep stable when a pipeline stretches or receives external force. The nodular cast iron pipe joint heat preservation structure for heating power comprises an inserting pipe and a receiving pipe, wherein an inserting port is arranged at one end of the inserting pipe, a receiving port is arranged at one end of the receiving pipe, and the inserting port is inserted into the receiving port; the flexible heat-insulating layer is wound and filled in the reserved gap between the inserting port and the receiving port, and the outermost layer of the flexible heat-insulating layer is consistent with the outer wall of the receiving port in height; the second winding layer is wound and stuck on the outer side of the flexible heat-insulating layer, and the connection part of the flexible heat-insulating layer, the socket and the plug-in port is covered; The plug pipe and the socket pipe are respectively sleeved with a protective sleeve, one end of the plug port can be covered by the corresponding protective sleeve, and one end of the socket port can be covered by one end of the corresponding protective sleeve. Further, an annular plug port limiting groove is formed in the arc-shaped outer wall of the plug pipe, which corresponds to one end of the plug port, and an annular socket port limiting groove is formed in the arc-shaped outer wall of the socket pipe, which corresponds to one end of the socket port. Further, the plug connector comprises a plug connector body, a socket connector body and a protective sleeve, wherein the plug connector body is provided with a socket connector, the socket connector is provided with a socket connector, and the socket connector is fixedly connected with the socket connector body. Further, the device also comprises an outer protective sleeve which is sleeved on the limiting belt and can wrap the two limiting belts. Further, the outer side of each limit belt is respectively wound with a first winding layer, and the first winding layer is arranged between the outer protective sleeve and the limit belt. Further, the outer protective sleeve is a heat shrinkage sleeve, a round hole is formed in a position corresponding to the reserved hole of the protective sleeve, and the outer protective sleeve is used for tightly wrapping the first winding layer and the lap joint of the two protective sleeves. Further, the protective sleeve is a rubber sleeve which can be folded. Further, the limiting belt is a stainless steel belt, and two ends of the limiting belt are tightened through a manual packer. Further, the first winding layer adopts a single-sided waterproof