Metal hose device

Abstract

The utility model relates to a metal hose device which comprises a metal hose assembly, the metal hose assembly comprises a corrugated pipe and a metal woven net pipe connected to the outer wall of the corrugated pipe in a sleeved mode, and the metal hose device further comprises a flexible heat preservation sleeve connected to the outer wall of the metal woven net pipe in a sleeved mode. The spacer is fixed on the metal woven net pipe, is positioned between the flexible heat preservation sleeve and the metal woven net pipe, and is configured to enable the flexible heat preservation sleeve and the metal woven net pipe to be in clearance connection; according to the metal hose device, the surface temperature of the metal hose assembly can be effectively reduced by sleeving the flexible heat preservation sleeve and the gap piece, so that the risk that an operator is scalded during short-distance operation is greatly reduced, meanwhile, the flexible heat preservation sleeve has a heat insulation function, and heat loss of high-temperature and high-pressure steam in the conveying process is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline equipment technical field, especially relates to metal hose device. BACKGROUND

[0002] In industrial production and many fields related to high temperature, high pressure fluid conveying, metal hose as a kind of key conveying component is widely used. The temperature of the fluid to be conveyed is usually relatively high, for example, often more than 80 degrees Celsius, some even reach 400 degrees Celsius;Some fluid pressure is relatively high, conveying in metal hose at 0.5MPa to 6MPa high pressure;Of course, some fluids have high temperature and high pressure characteristics. For example, in the field of mobile energy storage, metal hose needs to convey water vapor with temperature exceeding 100 degrees Celsius and pressure reaching 2MPa.

[0003] When operating the metal hose for conveying high temperature, high pressure steam, close-range operation is often required manually. Because the temperature of the fluid in the pipe is sometimes extremely high, this makes the operator always face the risk of being scalded. Sometimes, the operator needs to spend extra effort to fix the position of the quick connector when operating the connection, which further increases the possibility of being scalded by contacting high temperature components.

[0004] Therefore, it is necessary to design a metal hose device to avoid personnel scalding and reduce heat damage. SUMMARY

[0005] In view of part or all of the above technical problems existing in the prior art, the utility model provides a metal hose device. The metal hose device can effectively reduce the surface temperature of the metal hose assembly by sleeving the flexible heat preservation sleeve and the gap piece, so that the risk of being scalded by the operator during close-range operation is greatly reduced. At the same time, the flexible heat preservation sleeve has heat insulation function, which greatly reduces the heat loss of high temperature and high pressure steam in the conveying process.

[0006] According to the utility model, a metal hose device is provided, which comprises a metal hose assembly, the metal hose assembly contains a corrugated pipe and a metal woven mesh pipe sleeved on the outer wall of the corrugated pipe, and further comprises:

[0007] a flexible heat preservation sleeve sleeved on the outer wall of the metal woven mesh pipe,

[0008] a spacer fixed on the metal woven mesh pipe and located between the flexible heat preservation sleeve and the metal woven mesh pipe, the spacer is configured to gap-connect the flexible heat preservation sleeve and the metal woven mesh pipe.

[0009] In one embodiment, the flexible heat preservation sleeve is configured as one of a silica gel sleeve, a ternary ethylene propylene rubber sleeve, a TPE sleeve and a polyimide sleeve.

[0010] In one embodiment, the spacer is configured as a winding wire spirally wound on the outer wall of the metal braid tube.

[0011] In one embodiment, the winding wire is welded to the metal braid tube.

[0012] In one embodiment, the metal hose assembly further comprises a welding ring respectively sleeved on the axial two ends of the metal braid tube, the winding wire and the flexible heat insulation sleeve both axially extend to the outer wall of the welding ring, and a fastening clamp is arranged on the outer wall of the flexible heat insulation sleeve and located radially outside the welding ring.

[0013] In one embodiment, the welding ring is welded to the winding wire.

[0014] In one embodiment, at least one set of handle assemblies is arranged on the outer wall of the flexible heat insulation sleeve, each handle assembly comprising a handle bracket sleeved on the outer wall of the flexible heat insulation sleeve and a handle arranged on the handle bracket.

[0015] In one embodiment, each handle assembly comprises two handle brackets arranged at intervals in the axial direction of the flexible heat insulation sleeve, and the handle is configured as a U-shaped rod, both ends of the handle being fixed to the corresponding handle brackets.

[0016] In one embodiment, the handle bracket comprises a first connecting piece and a second connecting piece, and the first connecting piece is connected to the second connecting piece to form a sleeving ring for gap-sleeving the flexible heat insulation sleeve.

[0017] In one embodiment, the first connecting piece and the second connecting piece are connected by bolts or clamps.

[0018] Compared with the prior art, the metal hose assembly of the present application has at least one of the following advantages: the flexible heat insulation sleeve and the spacer can effectively reduce the surface temperature of the metal hose assembly, greatly reducing the risk of scalding when the operator operates at close range. At the same time, the flexible heat insulation sleeve has a heat insulation function, greatly reducing the heat loss of high-temperature and high-pressure steam during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0019] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0020] Fig. 1 A metal hose device according to one embodiment of the present application is shown.

[0021] Fig. 2An installation of a handle assembly of a metal hose device according to an embodiment of the present application is shown.

[0022] Fig. 3 A sectional view of an intermediate section of a metal hose device according to an embodiment of the present application is shown.

[0023] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0024] In order to make the technical scheme and advantages of the present application clearer, the exemplary embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. And the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0025] The present application will be further described below with reference to the drawings. As shown in Figs. 1 to 3 The metal hose device includes a metal hose assembly 10. The metal hose assembly 10 contains a corrugated pipe 11 and a metal braided pipe 12. The corrugated pipe 11 serves as a conveying channel for high-temperature and high-pressure fluids such as steam, and is the core part of the entire metal hose assembly 10. It is made of high-quality metal material, has good pressure resistance and certain flexibility to adapt to different installation environments and pipeline direction requirements. The metal braided pipe 12 is tightly wound outside the corrugated pipe 11. The metal braided pipe 12 is woven from high-strength metal wires, and its main function is to enhance the overall strength and external impact resistance of the metal hose assembly 10. When the metal hose assembly 10 is used in an open environment, the metal braided pipe 12 can resist external impacts such as foreign object impacts in strong winds, protecting the internal corrugated pipe 11 from being easily damaged. This metal hose assembly 10 is a commonly used metal hose in the prior art. In use, especially when conveying high-temperature fluids, the temperature of the high-temperature fluids is easily transferred to the wall of the metal braided pipe 12, and the on-site operator may be scalded. Moreover, the heat of the fluid in the corrugated pipe 11 is also easily transferred outward, causing waste.

[0026] According to the present application, the flexible thermal insulation sleeve 20 is sleeved on the outer wall of the metal braided pipe 12. The flexible thermal insulation sleeve 20 is flexible to the greatest extent to affect the deformation adaptability of the metal hose assembly 10. At the same time, the flexible thermal insulation sleeve 20 has thermal insulation performance, can effectively reduce the external surface temperature, avoid direct contact of the operator with high temperature, realize heat insulation and thermal insulation, and reduce the risk of scalding of the operator. The added flexible thermal insulation sleeve 20 can greatly reduce the heat dissipation of the metal hose assembly 10 to the surrounding environment, make the heat in the conveying process better maintained in the pipeline, thereby reducing the system heat loss, realizing the effect of more energy saving and low carbon, and improving the energy utilization efficiency. In addition, the spacer 30 is fixed on the metal braided pipe 12. The spacer 30 is located between the flexible thermal insulation sleeve 20 and the metal braided pipe 12. The spacer 30 makes the flexible thermal insulation sleeve 20 gap fit with the metal braided pipe 12. The structure of the spacer 30 can block the direct transmission of heat to a certain extent, and plays a preliminary heat insulation role. In addition, the spacer 30 can make the flexible thermal insulation sleeve 20 and the metal braided pipe 12 filled with air, and play a further heat insulation effect.

[0027] The flexible thermal insulation sleeve 20 can be configured as a three-element propylene rubber sleeve, a TPE sleeve and a polyimide sleeve. However, the flexible thermal insulation sleeve 20 is preferably made of silica gel material. The setting can take advantage of the good flexibility and strong weather resistance of silica gel material. Especially when the bellows 11 and the metal braided pipe 12 of the metal hose assembly 10 have slight leakage, the flexible thermal insulation sleeve 20 of silica gel can block part of the kinetic energy of the steam leakage by virtue of its own physical properties, change the leakage direction, prevent the steam from directly shooting the surrounding personnel, and further reduce the risk of scalding when the pipeline leaks.

[0028] In one example, the spacer 30 can be configured as a ring. After installation, the ring is sleeved on the outer wall of the metal braided pipe 12. As can be easily understood, the ring-shaped spacer 30 can be multiple, and is distributed in an interval in the axial direction of the outer wall of the metal braided pipe 12. In another embodiment, the spacer 30 is configured as a spiral winding wire wound on the outer wall of the metal braided pipe 12. That is, the spacer 30 is configured as a spring. Compared with the ring-shaped spacer 30, the spiral winding wire has a simpler structure, is easier to install and operate, and has lower production cost.

[0029] The winding wire is made of spring steel wire with certain elasticity and high temperature resistance. The spring steel wires are tightly wound in a spiral shape and fixed outside the metal woven mesh tube 12. The pitch of the winding wire can be adjusted according to actual conditions. The winding wire isolation structure can block the transfer of part of the heat from the inside to the outside through air gaps and its own structural characteristics, thereby playing a preliminary heat insulation role. On the other hand, when the metal hose device is extruded or bent by external force, the winding wire structure can provide certain buffering and support to help maintain the shape of the metal hose assembly 10 and reduce the impact of local deformation caused by external force on the internal structure.

[0030] The winding wire is welded to the metal woven mesh tube 12. This connection method is simple, low in manufacturing cost, and easy to implement. Of course, the winding wire can also be limited on the metal woven mesh tube 12 by other fixing methods such as bonding.

[0031] The metal hose assembly 10 also includes two welding rings 13, which are respectively sleeved on the axial ends of the metal woven mesh tube 12. The welding ring 13 is annular in shape and is sleeved on the outer wall of the metal woven mesh tube 12 and communicates with the corrugated ring 11. The main function of the welding ring 13 is to connect the quick connector 14 or the flange 15, etc. According to the present application, the winding wire and the flexible thermal insulation sleeve 20 are both axially extended to the outer wall of the welding ring 13. That is, the flexible thermal insulation sleeve 20 is sleeved on the welding ring 13, and there is also a spacer 30 between them. The fastening clamp 40 is provided on the outer wall of the flexible thermal insulation sleeve 20. The fastening clamp 40 is located radially outside the welding ring 13. Thus, at the outer wall of the welding ring 13, the flexible thermal insulation sleeve 20 is fixed by providing the fastening clamp 40. The fastening clamp 40 can be a clamp in the prior art, for example, a metal band-shaped throat clamp, which is locked to the flexible thermal insulation sleeve 20 by adjusting the fastener; for example, the fastening clamp 40 is a fastening ring, which is locked to the flexible thermal insulation sleeve 20 after being deformed by pressure after being sleeved on the flexible thermal insulation sleeve 20.

[0032] After the winding ring extends to the welding ring 13, it is fixed to the welding ring 13 by means of welding or bonding.

[0033] According to different needs, the welding ring 13 is connected with the quick connector 14 or the flange 15. The quick connector 14 and the flange 15 are used to communicate with the inner cavity of the corrugated tube 11, and at the same time, the quick connector 14 and the flange 15 ensure the quick connection with the pipeline outside. According to actual needs, the structure of the quick connector 14 and the flange 15 can be adjusted; the quick connector 14 or the flange 15 can also be provided on both axial ends of the corrugated tube 11.

[0034] At least one set of handle assemblies 50 are arranged on the outer wall of the flexible thermal sleeve 20. Each handle assembly 50 comprises a handle bracket 51 and a handle 52. The handle bracket 51 is arranged on the outer wall of the flexible thermal sleeve 20, and serves to connect the handle assembly 50 to the flexible thermal sleeve 20. The handle 52 is arranged on the handle bracket 51, and is used by the operator to hold and operate the metal hose device, such as carrying or limiting.

[0035] According to the present application, each handle assembly 50 comprises two handle brackets 51. The two handle brackets 51 are arranged in an axial direction of the flexible thermal sleeve 20. The handle 52 is configured as a U-shaped rod, and the two ends of the handle 52 are fixed to the corresponding handle brackets 51. The groove bottom of the U-shaped rod can be used as a gripping portion, and the length extension direction of the gripping portion is parallel to the axial direction of the flexible thermal sleeve 20. This design conforms to the ergonomic principle, and is convenient for the worker to exert force when operating the quick connector 14 to connect or disconnect. During the operation, the worker can control the action of the quick connector 14 by holding the handle 52, and is far away from the high-temperature components, thereby reducing the risk of scalding. Moreover, according to the actual pipeline layout and operation space requirements, the worker can rotate the handle 52 to the best force exertion angle, thereby further reducing the labor intensity.

[0036] In addition, the handle bracket 51 comprises a first connecting piece 53 and a second connecting piece 54. The first connecting piece 53 and the second connecting piece 54 form a sleeving ring for sleeving the flexible thermal sleeve 20 in a spaced manner. The sleeving ring is in a spaced fit with the flexible thermal sleeve 20, and the position of the handle assembly 50 on the flexible thermal sleeve 20 can be conveniently adjusted.

[0037] Preferably, the first connecting piece 53 and the second connecting piece 54 are connected by bolts or clamps. In the present application, an embodiment in which the first connecting piece 53 and the second connecting piece 54 are connected by bolts is given. For example, the first connecting piece 53 is generally in the shape of a bridge, and spans the radial direction of the flexible thermal sleeve 20, and mounting holes are arranged on the two ends. The second connecting piece 54 is configured as a curved rod, and the free end of the curved rod is provided with a thread as a connecting bolt. After connection, the second connecting piece 54 is accommodated in the first connecting piece 53, and the two ends of the second connecting piece 54 pass through the mounting holes and are connected with nuts 55, thereby realizing the detachable connection of the first connecting piece 53 and the second connecting piece 54.

[0038] In the assembly process of the metal hose device, first, the prepared corrugated hose 11, such as high pressure, is placed on a suitable workbench. Then, the metal braided hose 12 is tightly wound around the outside of the corrugated hose 11 in a predetermined manner, ensuring that the metal braided hose 12 covers evenly and without gaps. Then, the welding ring 13 is respectively sleeved at the axial ends of the metal braided hose 12. The welding ring 13 is fixed with the metal braided hose 12 by, for example, welding. Next, the spring-shaped spacer 30 is arranged and fixed in a spiral shape outside the metal braided hose 12, and extends axially to the welding ring 13. The spring steel wire is fixed with the metal braided hose 12 by welding or other suitable fixing methods, and is fixed with the welding ring 13 by welding or other suitable fixing methods. After that, the flexible silicone sleeve 20 is carefully sleeved outside the spring structure, and after adjusting the position, the flexible silicone sleeve 20 is fixed on the spacer 30 by using the fastening clamp 40. After that, the quick connector 14 or the connecting flange 15 is welded on each welding ring 13. After the installation of the quick connector 14 is completed, the handle assembly 50 is installed on the outer wall of the flexible silicone sleeve 20. According to actual needs, the number and axial position of the handle assembly 50 on the flexible silicone sleeve 20 can be adjusted. For example, the handle assembly 50 is installed at the quick connector 14, and the initial angle of the handle 52 is adjusted. Finally, each connection part is checked to ensure firm connection, and the entire safety and anti-scalding heat preservation high pressure metal hose device is assembled.

[0039] When the flexible silicone sleeve 20 needs to be repaired due to aging or damage, first, the connection between the first connecting piece 53 and the second connecting piece 54 is disconnected, and the handle assembly 50 is disassembled. Then, using the corresponding tool, the fastening clamp 40 that fixes the flexible silicone sleeve 20 is loosened, and the damaged or aged silicone flexible sleeve 20 is removed from the spacer 30 structure. Then, the new flexible silicone sleeve 20 is sleeved on the spacer 30 structure, and after adjusting the position, it is fixed firmly using the fastening clamp 40. Finally, the handle assembly 50 is installed, the angle of the handle 52 is adjusted, and the repair work of the flexible silicone sleeve 20 is completed. It should be noted that when installing the new flexible silicone sleeve 20, the quick connector 14 or the connecting flange 15 at one end can also be removed, and after the flexible silicone sleeve 20 is installed, the removed quick connector 14 or connecting flange 15 is reinstalled.

[0040] In the present application, from the perspective of the safety of the operating personnel, the combination of the spacer 30 structure and the flexible thermal insulation sleeve 20 effectively reduces the surface temperature of the metal hose assembly 10, greatly reducing the risk of burns when operating at close range. At the same time, the design of the handle assembly 50 allows the operating personnel to be away from high-temperature components, further ensuring the safety of the operating personnel. Moreover, in the event of a slight leak in the pipeline, the flexible thermal insulation sleeve 20 can change the direction of the steam leak to avoid direct steam from surrounding personnel, adding an important safety line for possible leakage scenarios.

[0041] In terms of energy utilization, the good thermal insulation performance of the flexible thermal insulation sleeve 20 greatly reduces the heat loss of high-temperature and high-pressure steam during transportation. Compared with traditional high-pressure metal hoses, the present application can effectively reduce system heat loss and achieve more efficient energy utilization, which not only conforms to the current trend of energy saving and emission reduction, but also saves energy costs for enterprises and improves economic efficiency.

[0042] The present application successfully minimizes the impact on the flexibility of the metal hose assembly 10 while achieving good thermal insulation effect through unique structural design, i.e., installing the spring structure spacer 30 and the flexible thermal insulation sleeve 20 made of silica gel outside the metal hose assembly 10. This allows the metal hose device to effectively maintain the temperature of the transported medium while being as flexible as traditional metal hose assemblies, reducing the labor intensity of the operating personnel and avoiding damage to the pipeline caused by frequent bending difficulties due to loss of flexibility, thereby significantly extending the overall service life of the metal hose device and reducing equipment replacement costs.

[0043] In terms of adapting to external environments, the metal woven mesh pipe 12 enhances the ability of the corrugated pipe 11 to resist external force impact. The flexible thermal insulation sleeve 20 not only insulates and insulates, but also blocks rainwater and corrosive liquids from directly contacting the metal woven mesh pipe 12, reducing the risk of corrosion, and its smooth surface can reduce friction damage. These characteristics, combined, allow the metal hose device of the present application to effectively resist adverse factors such as airflow, rainwater, external force impact, corrosion, and friction in complex external environments such as open air, greatly extending the service life and reducing maintenance frequency and cost.

[0044] In terms of manufacturing and maintenance, the structural design of the present application makes the manufacturing process relatively simple, and common welding, clamping, and bolt tightening processes can be used to complete assembly, reducing manufacturing difficulty and production cost. When the flexible thermal insulation sleeve 20 is aged or damaged, its convenient repair method does not require complex operations and specialized equipment, further reducing maintenance costs and time costs, improving the usability and operating efficiency of the device.

[0045] In conclusion, the metal hose device with safety anti-scalding and heat preservation has obvious advantages in guaranteeing the safety of operators, improving energy utilization efficiency, optimizing the performance of the corrugated pipe, adapting to external environment, and reducing manufacturing and maintenance costs, and has extremely high practical value and popularization significance.

[0046] The preferred embodiments of the present application are described above, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical range disclosed by the present application, and such changes or variations should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A metal hose apparatus comprising a metal hose assembly having a bellows and a metal braided hose sleeve fitted over an outer wall of the bellows, characterized in that, Also included are: a flexible thermal sleeve sleeved on the outer wall of the metal mesh pipe, a spacer fixed on the metal mesh pipe and located between the flexible thermal sleeve and the metal mesh pipe, the spacer being configured to gap-connect the flexible thermal sleeve and the metal mesh pipe.

2. The metal hose apparatus according to claim 1, characterized by The flexible thermal sleeve is configured as one of a silica gel sleeve, a ternary ethylene propylene rubber sleeve, a TPE sleeve, and a polyimide sleeve.

3. The metal hose apparatus according to claim 1, characterized by The spacer is configured as a winding wire spirally wound on the outer wall of the metal mesh pipe.

4. The metal hose apparatus according to claim 3, characterized by The winding wire is welded to the metal mesh pipe.

5. The metal hose apparatus according to claim 4, characterized by The metal hose assembly further includes a welding ring sleeved on each axial end of the metal mesh pipe, the winding wire and the flexible thermal sleeve both axially extending to the outer wall of the welding ring, a fastening clamp being provided on the outer wall of the flexible thermal sleeve and located radially outside the welding ring.

6. The metal hose apparatus according to claim 5, characterized by The welding ring is welded to the winding wire.

7. The metal hose apparatus according to any one of claims 1 to 6, characterized by, At least one set of handle assemblies is provided on the outer wall of the flexible thermal sleeve, each handle assembly including a handle bracket sleeved on the outer wall of the flexible thermal sleeve and a handle provided on the handle bracket.

8. The metal hose apparatus according to claim 7, characterized by Each handle assembly includes two handle brackets spaced apart in the axial direction of the flexible thermal sleeve, the handle being configured as a U-shaped rod, both ends of the handle being fixed to the respective handle brackets.

9. The metal hose apparatus according to claim 8, characterized by The handle bracket includes a first connecting member and a second connecting member, the first connecting member being connected to the second connecting member to form a sleeving ring for gap-sleeving the flexible thermal sleeve.

10. The metal hose apparatus according to claim 9, characterized by The first connecting member and the second connecting member are connected by bolting or clamping.

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