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CN-121977121-A - Electric heating hose under extremely cold environment

CN121977121ACN 121977121 ACN121977121 ACN 121977121ACN-121977121-A

Abstract

The embodiment of the application provides an electric heating hose in an extremely cold environment, and relates to the technical field of electric heating hoses. The electric heating hose in the extremely cold environment comprises hose outer jackets and heating structures arranged in the hose outer jackets, wherein butt joints are arranged at two ends of each hose body, two adjacent hose bodies are mutually butted through the butt joints, and the electric heating hose further comprises a fixing assembly which is arranged between the two adjacent butt joints and is used for detachably and fixedly connecting the two adjacent hose bodies to realize modularized splicing and length combination of the multi-section hose bodies. Then, the ring end of the hook shaft is hung on the hook. Therefore, the hook shaft is tensioned, so that axial tension is generated, the two butt joints are tightly pressed, and sealing reliability is ensured.

Inventors

  • HE JIANZHONG
  • WANG ZHENZHONG

Assignees

  • 上海天阳钢管有限公司
  • 上海天阳时代技术有限公司
  • 上海一元能源科技有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (10)

  1. 1. The electric heating hose in the extremely cold environment is characterized by comprising at least two hose bodies, wherein each hose body comprises a hose outer sheath (1) and a heating structure arranged inside the hose outer sheath (1); Wherein, two ends of each hose main body are provided with butt joints (12), and two adjacent hose main bodies are mutually butt-jointed through the butt joints (12); The electric heating hose further comprises a fixing assembly, wherein the fixing assembly is arranged between two adjacent butt joints (12) and used for detachably and fixedly connecting the two adjacent hose bodies so as to realize modularized splicing and length combination of the multi-section hose bodies.
  2. 2. The electric heating hose in an extremely cold environment according to claim 1, wherein the fixing assembly comprises a hook (4) fixed on one of the butt joints (12), a pressing handle (21) and a hook shaft (22) arranged on the other butt joint (12), one end of the hook shaft (22) is connected with the pressing handle (21), the other end of the hook shaft is used for being connected with the hook (4) in a hanging mode, and the pressing handle (21) is operated to drive the hook shaft (22) to move so as to tighten two adjacent butt joints (12).
  3. 3. The electric heating hose under the extremely cold environment according to claim 2, wherein a bottom plate (2) is fixed on the other butt joint (12), the pressing handle (21) is hinged with the bottom plate (2) through a pin shaft, one end, close to the pin shaft, of the pressing handle (21) is provided with a fixed block (23), the fixed block (23) is provided with a threaded hole, one end of the hook shaft (22) is provided with a threaded section, the threaded section is in threaded connection with the threaded hole, and the other end of the hook shaft (22) is of a closed circular structure.
  4. 4. An electrically heated hose in an extremely cold environment according to claim 3, wherein the hooks (4) are fixed to the fixing plates (14) of one of the butt joints (12), the bottom plate (2) is fixed to the fixing plate (14) of the other butt joint (12), and the two fixing plates (14) are arranged in opposition.
  5. 5. The electric heating hose in the severe cold environment according to claim 1, wherein the fixing component comprises external threads (5) arranged on the outer peripheral surface of one of the butt joints (12) and a threaded pipe (6) sleeved on the outer peripheral surface of the other butt joint (12), internal threads (61) matched with the external threads (5) are arranged on the inner wall of the threaded pipe (6), and the threaded pipe (6) is fixedly connected with the two adjacent butt joints (12) through screwing of the internal threads (61) and the external threads (5).
  6. 6. An electrically heated hose in an extremely cold environment according to claim 1, wherein each of said butt joints (12) is provided with an annular rubber groove (13), said rubber groove (13) being embedded with a rubber sealing ring which is compressed between two of said butt joints (12) when two adjacent butt joints (12) are butted.
  7. 7. The electric heating hose under the extremely cold environment according to claim 1, wherein a fixing ring (11) is arranged on the outer peripheral surface of the hose outer sheath (1), a wire (3) is connected to the fixing ring (11), the wire (3) is electrically connected with the heating structure, a first pair of plugs (31) and a second pair of plugs (32) are respectively arranged at the head end and the tail end of the hose main body, the first pair of plugs (31) and the second pair of plugs (32) are respectively connected with the wire (3) at the corresponding ends, and two adjacent hose main bodies are electrically communicated with each other through the first pair of plugs (31) and the second pair of plugs (32).
  8. 8. The electric heating hose under the severe cold environment according to claim 7, wherein the first pair of plugs (31) are provided with fixing grooves (311), the second pair of plugs (32) are provided with clamping blocks (321), and one ends of the clamping blocks (321) are hooked and are used for being clamped into the fixing grooves (311) after the first pair of plugs (31) and the second pair of plugs (32) are inserted.
  9. 9. The electric heating hose in the extremely cold environment according to claim 1, wherein the heating structure comprises a polytetrafluoroethylene inner hose (15), an electric heating heat tracing band (16) and an aerogel felt (17) which are coaxially arranged in sequence from inside to outside, the polytetrafluoroethylene inner hose (15) is used for conveying a medium, the electric heating heat tracing band (16) is used for heating the medium, and the aerogel felt (17) is coated on the outer side of the electric heating heat tracing band (16).
  10. 10. Electrically heated hose in an extreme cold environment according to any of claims 1 to 9, characterized in that the hose outer sheath (1) is a stainless steel hose outer sheath.

Description

Electric heating hose under extremely cold environment Technical Field The invention belongs to the technical field of electric heating hoses, and particularly relates to an electric heating hose in an extremely cold environment. Background In chemical plants, energy plants, marine pipelines and aerospace auxiliary systems in extremely cold areas (e.g. high latitude areas, winter marine environments or high altitude conditions), it is often necessary to transport media such as fuel oil, lubricating oil, cooling water, sealing oil and the like over long distances. Because the environment temperature is extremely low, the mediums are extremely easy to generate viscosity rise, mobility decline and even solidification and freezing in the conveying process, thereby causing pipeline blockage and equipment liquid supply interruption, and the shutdown failure of a power system or auxiliary equipment can be caused when serious, so that serious economic loss and even safety accidents are caused. In order to solve the above problems, a heating hose is generally used to carry out heat tracing on a medium in the prior art. Conventional heated hoses generally include an inner hose, a heating layer, a heat insulating layer, and an outer jacket. However, in practical application, the existing heating hoses still have the following defects, in terms of structural connection, the conventional heating hoses are mostly manufactured in a fixed length, the lengths are required to be customized according to actual paths when the conventional heating hoses are laid on site, and the conventional heating hoses cannot be flexibly adjusted according to site space and path changes. When the pipeline trend is complicated or the laying path needs to be temporarily changed, the fixed-length hose is difficult to adapt and often needs to be remanufactured, so that the installation efficiency is low and the leakage risk is increased. Disclosure of Invention The application aims to at least solve one of the technical problems of modular rapid splicing in the prior art. Therefore, the application provides an electric heating hose in an extremely cold environment. The electric heating hose in the extremely cold environment comprises at least two hose bodies, wherein each hose body comprises a hose outer sheath and a heating structure arranged inside the hose outer sheath; Wherein, two ends of each hose main body are provided with butt joints, and two adjacent hose main bodies are mutually butt-jointed through the butt joints; the electric heating hose further comprises a fixing assembly, wherein the fixing assembly is arranged between two adjacent butt joints and used for detachably and fixedly connecting the two adjacent hose bodies so as to realize modularized splicing and length combination of the multi-section hose bodies. Preferably, the fixing component comprises a hook fixed on one butt joint, a pressing handle and a hook shaft, wherein the pressing handle and the hook shaft are arranged on the other butt joint, one end of the hook shaft is connected with the pressing handle, the other end of the hook shaft is used for being connected with the hook in a hanging mode, and the pressing handle is operated to drive the hook shaft to move so as to tighten two adjacent butt joints. Preferably, a bottom plate is fixed on the other butt joint, the pressing handle is hinged with the bottom plate through a pin shaft, a fixed block is arranged at one end, close to the pin shaft, of the pressing handle, a threaded hole is formed in the fixed block, a threaded section is arranged at one end of the hook shaft, the threaded section is in threaded connection with the threaded hole, and the other end of the hook shaft is of a closed circular structure. Preferably, the hooks are fixed on the fixing plate of one butt joint, the bottom plate is fixed on the fixing plate of the other butt joint, and the two fixing plates are arranged in opposite directions. Preferably, the fixing assembly comprises external threads arranged on the outer peripheral surface of one of the butt joints and a threaded pipe sleeved on the outer peripheral surface of the other butt joint, wherein the inner wall of the threaded pipe is provided with internal threads matched with the external threads, and the threaded pipe is fixedly connected with two adjacent butt joints through screwing of the internal threads and the external threads. Preferably, each butt joint is provided with an annular rubber groove, and a rubber sealing ring is embedded in the rubber groove, and when two adjacent butt joints are in butt joint, the rubber sealing ring is compressed between the two butt joints. Preferably, the outer peripheral surface of the hose outer sheath is provided with a fixed ring, the fixed ring is connected with a wire, the wire is electrically connected with the heating structure, the head end and the tail end of the hose main body are respectively provided with a first pair of plugs