Search

CN-224201351-U - Closed type heating power pipe network system

CN224201351UCN 224201351 UCN224201351 UCN 224201351UCN-224201351-U

Abstract

The utility model relates to a closed heat distribution pipe network system which mainly comprises a heat distribution pipe, a pipe heat preservation layer, a self-repairing coating, a heat distribution transmission device and a monitoring system. The heating pipeline is made of a high-temperature-resistant and corrosion-resistant composite material, and the outer surface of the heating pipeline is coated with a pipeline heat-insulating layer made of a high-efficiency heat-insulating material for reducing heat loss. The self-repairing coating is coated on the outer surface of the heating pipeline and is composed of repairing materials wrapped by microcapsules, so that repairing liquid can be automatically released to repair cracks when the pipeline is subjected to microcrack, and long-term stability of the pipeline is ensured. The monitoring system monitors the temperature, pressure and leakage state of the pipeline in real time, ensures the safe operation of the system, and regulates the thermal flow through the regulating valve. The system has higher durability, thermal stability and safety, can effectively reduce heat loss in the heat transmission process, improves the long-term stability of the system, and ensures the operation reliability of the pipeline in a severe environment.

Inventors

  • ZHANG SONGBO
  • YANG YONGLIANG
  • Chang Dainan
  • DONG HONGBO
  • WU JINE

Assignees

  • 吉林吉化华强建设有限责任公司

Dates

Publication Date
20260505
Application Date
20241225

Claims (7)

  1. 1. A closed heat pipe network system, comprising: a thermal conduit (100) made of a high temperature resistant, corrosion resistant composite material; The pipeline heat preservation layer (200) is coated on the outer surface of the heating pipeline (100) and used for reducing heat loss, and the pipeline heat preservation layer (200) is made of high-efficiency heat preservation materials; The self-repairing coating (300) is coated on the surface of the heating pipeline (100), the self-repairing coating (300) is a coating formed by microcapsules, the microcapsules contain repairing liquid which can be in chemical reaction after contacting with a pipeline crack, and the repairing liquid is a high-performance polymer material component and can be rapidly filled in the crack and solidified; a heat transfer device (400) connected to one end of the heat pipe (100) for transferring heat and adjusting the temperature and pressure of the fluid; The monitoring system (500) is arranged at each welding joint and elbow part of the pipe network and used for monitoring the temperature, the pressure and the leakage state of the pipeline in real time, wherein the monitoring system (500) regulates the thermal flow through the regulating valve and regulates the pipeline flow and the pressure according to the data fed back by the monitoring system through the intelligent control module.
  2. 2. A closed heat pipe network system according to claim 1, characterized in that the composite material of the heat pipe (100) is one of glass fibre reinforced plastic or polyurethane.
  3. 3. A closed heat pipe network system according to claim 1, characterized in that the self-repairing coating (300) is a self-repairing coating comprising a repairing material wrapped by microcapsules, wherein the microcapsules are of a high-temperature water-soluble vesicle structure, and are melted and broken by the action of overflow steam when microcracks occur in the pipeline, so that the repairing material is released and the cracks are filled.
  4. 4. A closed heat pipe network system according to claim 1, wherein the self-repairing coating (300) is applied to the outer surface of the pipe by airless spraying or brushing, and forms a uniform protective layer.
  5. 5. A closed heat pipe network system according to claim 1, wherein the self-repairing coating (300) is combined with the outer surface of the heat pipe by coating, the thickness of the coating is 0.5 to 2 mm, the self-repairing coating (300) is positioned on the outer surface of the pipe, the pipe heat-insulating layer (200) is positioned outside the self-repairing coating (300), and the thickness of the pipe heat-insulating layer (200) is 20mm to 50mm.
  6. 6. A closed heat pipe network system according to claim 1, wherein the self-repairing coating (300) is located on the outer surface of the heat pipe (100) and covers the outer surface of the heat pipe (100), the welded joint, the elbow part and the installation site surface of the monitoring system (500) on the surface of the heat pipe (100).
  7. 7. The closed heat pipe network system according to claim 1, wherein the heat insulation layer (200) of the pipe is tightly contacted with the outer surface of the coating in a cladding manner, and the inner and outer surfaces of the heat insulation layer (200) of the pipe are respectively provided with a film layer adhered to the surface of the self-repairing coating (300), so that the self-repairing coating (300) is prevented from being contacted with external moisture, and the sustainability of the coating performance is ensured.

Description

Closed type heating power pipe network system Technical Field The utility model relates to the technical field of heating power pipe networks, in particular to a closed heating power pipe network system. Background In the field of oil refining and chemical industry, along with the promotion of industrialization progress, the upgrading and transformation of oil refining technology become key to improve energy efficiency, reduce environmental pollution and improve production stability. Particularly, in the transformation and upgrading project of oil refining chemical industry, on the basis of ensuring production safety, the transformation and optimization of a pipeline system are rapidly and effectively carried out, and the transformation and optimization method is one of the cores of project success. In particular, construction of an worn piping lane area in an original factory area faces many complex technical and management challenges. The traditional heat distribution pipe network and process pipe installation technology has various defects such as complex engineering sites, short construction time and high construction risk, and frequent drawing adjustment is needed in the design and construction process of a pipe system, particularly in the plate lifting process of a process pipe part, the drawing is greatly changed, so that the condition of inconsistent design easily occurs in the construction sites, and the waste of time and cost is caused. In addition, construction teams often face dual pressures of materials and construction progress due to long material supply periods, limited work surface and heavy construction tasks. In the design and construction of a pipeline system, how to improve the reliability and long-term stability of the system and reduce the maintenance cost and the system shutdown risk is a problem to be solved. Although the heat loss can be reduced to a certain extent by the traditional pipeline heat preservation and protection coating technology, the repair function is insufficient when cracks or damages occur to the pipeline, and manual inspection and repair are often needed regularly, so that the complexity of operation and maintenance is increased. In view of the above, the present invention provides a closed heat pipe network system for solving the existing problems, and aims to solve the problems and improve the practical value by the technology. Disclosure of utility model The utility model provides a closed heat supply pipe network system, which aims to improve the stability, durability and safety of a pipe network through an innovative self-repairing coating technology. Specifically, the system comprises main components such as a heating power pipeline, a pipeline heat insulation layer, a self-repairing coating coated on the surface of the pipeline, a heating power transmission device, a monitoring system and the like. The heating pipeline is made of a high-temperature-resistant and corrosion-resistant composite material, so that the pipeline can be ensured to run for a long time under high temperature and severe environments. The structural design of the pipeline is optimized, so that the pipeline can effectively bear heat and pressure changes generated in the operation process of a pipe network. The outer surface of the heating power pipeline is coated with a layer of high-efficiency heat-insulating material, so that the heat loss is effectively reduced, and the high-efficiency transmission of heat energy is ensured. The thickness of the heat preservation layer is 20mm to 50mm, so that a durable heat isolation effect can be provided, and the environmental heat loss is effectively reduced. The self-repairing coating is an innovative material based on microcapsule technology. The coating is uniformly coated on the outer surface of the heating power pipeline in a spraying or brushing mode. The high-performance polymer repair liquid contained in the microcapsule can automatically release and fill cracks when the pipeline is subjected to microcracking, so that the cracks are repaired and the integrity of the surface of the pipeline is restored. Specifically, the microcapsule adopts a high-temperature water-soluble vesicle structure, and when a pipeline is subjected to microcrack, the microcapsule is melted and broken under the action of overflow steam to release repair liquid and fill the crack, so that the surface of the pipeline is ensured not to leak due to crack expansion. The thickness of the coating is 0.5 to 2mm, so that the crack can be effectively repaired at the initial stage of crack occurrence, and the maintenance frequency and replacement cost of the pipeline are reduced. The heat transmission device is arranged at one end of the pipeline and has the main functions of transmitting heat and adjusting the temperature and pressure of fluid so as to ensure the stability of the operation of the system. The device can be matched with other parts of a pipeline, and can eff