A detachable valve flange heat preservation energy-saving assembly

Abstract

The utility model relates to the technical field of flange heat preservation and discloses a detachable valve flange heat preservation energy-saving assembly, which comprises a protective sleeve, a cladding space is formed inside the protective sleeve, the protective sleeve is provided with an opening in a C shape, free ends are formed on both sides of the opening, a protruding structure is arranged on one of the free ends, a recessed structure is arranged on the other free end, a locking piece is arranged on the recessed structure and used for locking the protruding structure and the recessed structure, two connecting channels are formed on the protective sleeve, and a cladding structure is arranged on the connecting channels.

Description

Technical Field

[0001] This utility model relates to the field of flange insulation technology, specifically a detachable valve flange insulation and energy-saving component. Background Technology

[0002] In the field of industrial equipment insulation, the insulation of valves and flanges has long faced technical bottlenecks. Current technologies generally employ materials such as rock wool and aluminum silicate wool for wrapping, and then covering them with sheet metal to form a fixed structure. However, this approach requires the complete removal of the insulation layer during equipment maintenance, resulting in the scrapping of the materials.

[0003] Since valves and flanges are frequently inspected components, each maintenance requires the complete destruction of the sheet metal enclosure and internal insulation layer, resulting in the complete scrapping of materials and increasing the cost of each maintenance. In addition, the removed insulation material cannot be reused or replaced, resulting in a waste of resources. Utility Model Content

[0004] This utility model provides a detachable valve flange insulation and energy-saving component. Through the protective sleeve, raised structure, locking element and recessed structure, the entire component disassembly and installation process is efficient and quick. The component can be directly reused, effectively avoiding resource waste. It solves the problem of resource waste caused by the inability to reuse and replace insulation materials mentioned in the background art.

[0005] This utility model provides the following technical solution: A detachable valve flange insulation and energy-saving component includes a protective sleeve with an enclosing space inside. The protective sleeve has a C-shaped opening with free ends on both sides. One free end has a protruding structure, and the other free end has a recessed structure. The recessed structure has a locking element for locking the protruding and recessed structures. The protective sleeve has two connecting channels with enclosing structures on them.

[0006] As a preferred technical solution of this utility model, the protective sleeve is composed of an inner layer, a partition layer, a middle layer and an outer layer, and adjacent layers are fixedly connected by heat pressing.

[0007] As a preferred technical solution of this utility model, the inner layer is made of nano-aerogel felt or ceramic fiber blanket.

[0008] As a preferred technical solution of this utility model, the material of the partition layer is glass fiber cloth or basalt fiber cloth.

[0009] As a preferred technical solution of this utility model, the material of the intermediate layer is an aluminum foil composite film or a polytetrafluoroethylene film.

[0010] As a preferred technical solution of this utility model, the outer layer is made of silicone rubber coated glass fiber cloth.

[0011] As a preferred embodiment of the present invention, the protruding structure includes a first connector with a protrusion on it, the recessed structure includes a second connector with a groove on it, the protrusion and the groove are adapted to each other, and the locking member is disposed on the second connector.

[0012] As a preferred embodiment of the present invention, the locking member includes a locking bolt disposed on the second connecting member, and the protrusion is provided with a connecting groove, wherein the locking bolt is adapted to the connecting groove.

[0013] Compared with the prior art, this utility model provides a detachable valve flange insulation and energy-saving component, which has the following beneficial effects: 1. In this detachable valve flange insulation and energy-saving component, the protective sleeve is inserted from the side to cover the flange body. The protrusion of the first connector is inserted into the groove of the second connector until the bottom of the protrusion is in contact with the bottom surface of the groove. Then, the locking bolt is tightened to fix it. When the valve flange needs to be leak-tested or the bolts tightened, the wing nut and the covering structure are loosened by hand, the locking bolt is pulled out, the protrusion and the groove are separated, and the protective sleeve is removed from the side of the flange. The entire disassembly is quick. After maintenance, the above installation steps are repeated for reassembly. The component can be directly reused to prevent resource waste.

[0014] The parts of this device not covered are the same as or can be implemented using existing technologies. This utility model has good heat preservation effect, and the entire disassembly or installation takes a short time. The components can be directly reused, preventing waste of resources. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0016] Figure 1 This is a schematic diagram of the entire utility model; Figure 2 This is a schematic diagram of the protruding structure and the recessed structure of this utility model; Figure 3 This is a schematic diagram showing a cross-section of the protective sleeve of this utility model; Figure 4 This is a schematic diagram of the covering structure of this utility model.

[0017] In the diagram: 100, protective sleeve; 101, inner layer; 102, partition layer; 103, intermediate layer; 104, outer layer; 200, raised structure; 201, first connector; 202, connecting groove; 300, recessed structure; 301, second connector; 302, groove; 400, locking element; 500, covering structure; 501, burr; 502, rough surface. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This embodiment is designed for the insulation requirements of a high-temperature steam shut-off valve flange. This valve flange is used to transport saturated steam at a temperature of 350℃ and a pressure of 4.0MPa. It is a high-frequency maintenance component that requires 1-2 leak checks and bolt tightening per month. The traditional rock wool + sheet metal fixed insulation solution requires 75 minutes for a single maintenance, and the insulation material is completely unusable after removal. This embodiment achieves efficient operation and maintenance and resource saving through a detachable structure.

[0020] Example: Reference Figures 1-4 This utility model provides a detachable valve flange insulation and energy-saving component. Its basic components mainly include a protective sleeve 100. The protective sleeve 100 has a C-shaped opening structure with an opening width of 80mm to facilitate installation. The inner diameter of the internal covering space is adapted to the outer contour of the flange, with a 5mm gap to ensure a good fit. The four-layer structure and material selection of the protective sleeve 100 are as follows: Inner layer 101: 20mm thick nano-aerogel felt, with a temperature resistance range of -196℃ to 800℃, fully adaptable to 350℃ steam conditions, and its flexible texture allows for proper flange application. The curved surface eliminates dead angles in insulation. The partition layer 102 is made of basalt fiber cloth with a thickness of 1mm, which can withstand temperatures of 700℃ and has a tensile strength of ≥250N / 25mm. It can effectively fix the nano aerogel felt and prevent the fibers from falling off during disassembly and assembly. The middle layer 103 is made of aluminum foil composite film with a thickness of 0.5mm (aluminum foil + polyimide substrate) with a reflectivity of ≥96%. It can isolate steam radiation heat and prevent moisture from penetrating the nano aerogel felt. The outer layer 104 is made of silicone rubber coated fiberglass cloth with a thickness of 1.2mm. It can resist mechanical collisions and oil pollution in the workshop.

[0021] Specifically, the protective sleeve 100 has two free ends on its opening. One free end has a protruding structure 200, and the other free end has a recessed structure 300. The recessed structure 300 has a locking element 400 for locking the protruding structure 200 and the recessed structure 300, which is the first connecting member 201. The first connecting member 201 is rectangular in shape, with a protrusion integrally formed at its end. A connecting groove 202 is formed in the middle of the protrusion. The recessed structure 300 is the second connecting member 301. The second connecting member 301 has a groove 302, which is adapted to the protrusion. The locking element 400 is set on the second connecting member 301. The locking element 400 is an M8 stainless steel locking bolt with a matching wing nut for easy manual operation. The bolt passes through the mounting hole of the second connecting member 301 and is threaded into the connecting groove 202 of the protrusion. After tightening, the gap between the protrusion and the groove 302 is ≤0.5mm to ensure a sealing and heat preservation effect. At the same time, the locking bolt passes through the groove 302.

[0022] Specifically, two connecting channels are provided at both ends of the protective sleeve 100, which adopt the same four-layer composite structure as the protective sleeve 100. A covering structure 500, namely a covering tape, is provided on the connecting channel. One side of the covering tape is provided with burrs 501, and the other side is provided with a rough surface 502. When the covering tape is wrapped around the connecting channel, the burrs 501 and the rough surface 502 fit together and fix it to the pipe to form a stable connection. The tightness of the covering tape can be adjusted according to actual needs, which facilitates the inspection and maintenance of the connecting channel.

[0023] The working principle is as follows: Clean the oil, rust, and impurities from the surface of the high-temperature steam shut-off valve flange to ensure the surface is dry and clean, avoiding affecting the adhesion of the insulation layer. Align the C-shaped opening of the protective sleeve 100 with the valve flange and slip it on from the side so that the covering space completely covers the flange body. Push the free ends on both sides of the opening so that the protrusion on the first connector 201 is inserted into the groove 302 of the second connector 301 until the bottom of the protrusion is in contact with the bottom surface of the groove 302. Tighten the locking bolt on the second connector 301 so that the end of the bolt is completely screwed into the connecting groove 202 of the protrusion until the wing nut is tightly against the second connector 301. 1. At this point, the fit between the protective sleeve 100 and the flange is ≥95%, with no obvious gaps. Simultaneously, the two covering structures 500 are respectively fitted onto the connecting channel of the protective sleeve 100 and the corresponding pipe. After adjusting the position, the covering structures 500 are used for fixation. When it is necessary to perform leakage detection or bolt tightening on the valve flange, the wing nut and covering structure 500 are loosened by hand. After pulling out the locking bolt, the protrusion and groove 302 can be separated, and the protective sleeve 100 can be removed from the side of the flange. The entire disassembly process takes about 8-10 minutes. After the maintenance is completed, the above installation steps can be repeated for reassembly. The components can be directly reused.

[0024] Specifically, the surface temperature of the valve flange can be reduced from 120℃ in the traditional solution to 42℃, far below the 60℃ anti-scalding standard specified by ASME, reducing heat loss by 78%. The annual steam energy cost per valve is reduced by about 1,000 yuan. The time for disassembling and assembling the insulation layer during a single maintenance is shortened from 75 minutes to 15 minutes (including disassembly, assembly and debugging), improving maintenance efficiency by 80%. After 20 disassembly and assembly cycles, the components show no damage to the structure of each layer and no reduction in insulation performance. The expected service life is up to 8 years, saving 20%-35% of energy consumption. The investment cost can be recovered in 6-8 months, greatly reducing the workshop temperature and significantly improving the working environment.

[0025] Components not described in detail in this article are existing technologies.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A detachable valve flange thermal insulation and energy-saving component, comprising a protective sleeve (100), wherein the protective sleeve (100) forms an enclosing space, characterized in that, The protective sleeve (100) has an opening in the shape of a C, with free ends formed on both sides of the opening. One free end has a protruding structure (200), and the other free end has a recessed structure (300). The recessed structure (300) has a locking element (400) for locking the protruding structure (200) and the recessed structure (300). The protective sleeve (100) has two connecting channels, and the connecting channels have a covering structure (500).

2. The detachable valve flange thermal insulation and energy-saving component according to claim 1, characterized in that, The protective sleeve (100) consists of an inner layer (101), a partition layer (102), a middle layer (103), and an outer layer (104), with adjacent layers fixedly connected by heat pressing.

3. The detachable valve flange thermal insulation and energy-saving component according to claim 2, characterized in that, The inner layer (101) is made of nano-aerogel felt or ceramic fiber blanket.

4. The detachable valve flange thermal insulation and energy-saving component according to claim 2, characterized in that, The partition layer (102) is made of fiberglass cloth or basalt fiber cloth.

5. A detachable valve flange thermal insulation and energy-saving component according to claim 2, characterized in that, The intermediate layer (103) is made of aluminum foil composite film or polytetrafluoroethylene film.

6. A detachable valve flange thermal insulation and energy-saving component according to claim 2, characterized in that, The outer layer (104) is made of silicone rubber coated fiberglass cloth.

7. A detachable valve flange thermal insulation and energy-saving component according to claim 1, characterized in that, The protruding structure (200) includes a first connector (201) with a protrusion on it. The recessed structure (300) includes a second connector (301) with a groove (302) on it. The protrusion is adapted to the groove (302). The locking member (400) is disposed on the second connector (301).

8. A detachable valve flange thermal insulation and energy-saving component according to claim 7, characterized in that, The locking member (400) includes a locking bolt disposed on the second connector (301), and the protrusion is provided with a connecting groove (202), the locking bolt being adapted to the connecting groove (202).

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