Quick-release and quick-assembly maintenance window device for heat supply main pipeline insulation layer

Abstract

The utility model discloses a heat supply main pipeline heat preservation layer quick detach quick installation overhaul window device, including pipeline body, base, heat preservation filler and hinged on the window cover of base, the base with the outer wall of one side of window cover is provided with fixed establishment, and the sealing mechanism is provided between the base with window cover, the fixed establishment includes fixed seat and fixed block, the fixed block with the fixed seat is arranged respectively on the outer wall of one side of window cover with base, the top outer wall of fixed seat is provided with fixed groove, the inner wall of fixed groove is provided with the slot, the top outer wall of fixed block is provided with fixed hole, and the fixed tube is provided on the circumferential inner wall of fixed hole. The utility model discloses a heat supply main pipeline heat preservation layer quick detach quick installation overhaul window device has the effect that simplifies overhaul process, improves overhaul efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipeline engineering technology, and in particular to a quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline. Background Technology

[0002] Currently, my country's long-distance hot water heating main pipelines generally adopt a three-section composite insulation structure of "steel pipe + polyurethane insulation layer + PE / galvanized iron outer sheath", with a design operating pressure of 1.6MPa and a temperature of 80-120℃. The pipelines are continuously buried underground or laid overhead. Within the design life of 30 years, existing steel-clad steel or polyurethane direct-buried insulated pipes require external wall corrosion, cathodic protection potential, or infrared thermography inspections every 1-2 years.

[0003] However, when inspecting the insulation layer of traditional heating main pipelines, it is necessary to cut open the outer steel pipe and remove the insulation layer at once, which can easily cause irreversible damage to the outer protective layer and insulation material. This low-frequency, high-loss mode of "cutting once and repairing once" seriously wastes manpower and resources.

[0004] For example, traditional methods require large-area stripping of the insulation structure of the pipe section at the inspection point during routine maintenance. The total area to be removed is approximately 400mm x 400mm. This process involves first using an angle grinder to cut a 400mm x 400mm square hole in the outer protective sheet metal, then using a scraper to peel off the aluminum foil reflective layer inside the air layer, and then using a handsaw to remove the glass wool or polyurethane foam insulation layer and the inner protective layer layer by layer until the working steel pipe is completely exposed before welding or clamping repair can be carried out. After repair, the insulation material must be refilled, the aluminum foil must be reattached, new inner and outer protective layers must be welded, and the outer steel pipe and outer anti-corrosion layer must be restored. The whole process takes 2-3 hours. The thickness of the refilled insulation layer after repair is uneven, with many seams, which easily leads to thermal bridges in the pipeline. On-site measurements show that the heat loss is more than 10% higher than before, and the secondary sealing is not reliable. Moisture can easily seep in, causing corrosion of the outer steel pipe and further deterioration of the insulation performance. Summary of the Invention

[0005] This utility model discloses a quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline. It aims to solve the technical problem that during inspection, it is necessary to cut open the outer steel pipe and remove the insulation layer at once, which can easily cause irreversible damage to the outer protective layer and insulation material. This low-frequency and high-loss mode of "cutting once and repairing once" seriously wastes manpower and material resources.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline includes a pipeline body, a base, an insulation block, and a viewing window cover hinged to the base. A fixing mechanism is provided on one outer wall of the base and the viewing window cover, and a sealing mechanism is provided between the base and the viewing window cover. The fixing mechanism includes a fixing seat and a fixing block. The fixing block and the fixing seat are respectively disposed on one outer wall of the window cover and the base. A fixing groove is formed on the top outer wall of the fixing seat, and a slot is formed on the inner wall of the fixing groove. A fixing hole is formed on the top outer wall of the fixing block. A fixing tube is disposed on the inner circumference of the fixing hole. Two sliding slots and two sliding grooves are respectively formed on the inner circumference of the fixing tube and the fixing hole. An assembly rod is disposed inside the fixing tube. A second assembly plate is disposed on the outer circumference of the assembly rod. A first assembly plate is connected to the top outer wall of the second assembly plate by a spring. Two insertion rods are disposed on the outer circumference of the first assembly plate. A knob and a limiting component are respectively disposed at both ends of the assembly rod.

[0007] By adopting the above technical solution and using a quick-disassembly and quick-installation design, the maintenance process of the insulation layer of the main heating pipeline is simplified, avoiding the irreversible damage of cutting open the outer steel pipe and chiseling away the insulation layer in one go in the traditional method. This significantly reduces the consumption of manpower and material resources and improves maintenance efficiency. An inspection window is set on the pipeline body, and the opening and closing of the inspection window is controlled by a fixing mechanism. After opening, the inside of the pipeline can be observed directly without damaging the insulation layer. After maintenance is completed, the inspection window cover is closed, and the integrity of the insulation layer is ensured by a sealing mechanism.

[0008] As a further embodiment of this utility model: the sealing mechanism includes a first sealing gasket and a second sealing gasket, the first sealing gasket and the second sealing gasket are respectively disposed on the top outer wall of the base and the bottom outer wall of the window cover, a sealing ring is disposed on the top outer wall of the first sealing gasket, a plurality of auxiliary gaskets arranged at equal intervals are disposed on the outer wall of the sealing ring, and a mating groove is provided on the bottom outer wall of the second sealing gasket.

[0009] By adopting the above technical solution and using a double sealing structure, heat loss and moisture intrusion are effectively prevented, ensuring the long-term effectiveness of the insulation layer and the safe operation of the pipeline. The base is equipped with a first sealing gasket at the top and a second sealing gasket at the bottom of the viewing window cover. When closed, the sealing ring fits tightly with the mating groove, and the auxiliary gasket fills the gap between the mating groove and the sealing ring to form a double seal, preventing the penetration of heat and moisture.

[0010] In summary, this application includes at least the following beneficial technical effects: 1. The quick-release and quick-installation design improves efficiency. This device adopts a unique quick-release and quick-installation fixing mechanism. The assembly rod is controlled by a knob to realize the quick opening and closing of the viewing window cover, which simplifies the maintenance process and avoids the tedious operation of cutting steel pipes and removing insulation layer. It significantly reduces the consumption of manpower and material resources and improves maintenance efficiency.

[0011] 2. A double-sealing structure is adopted to ensure thermal insulation performance. The sealing mechanism consists of a first sealing gasket, a second sealing gasket, a sealing ring, and an auxiliary gasket. When closed, it forms a double-sealing structure, which effectively prevents heat loss and moisture intrusion, ensuring the long-term effectiveness of the insulation layer and the safe operation of the pipeline, and reducing the increase in energy consumption and pipeline corrosion risk caused by the damage to the insulation layer.

[0012] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the quick-release and quick-installation maintenance window device for the insulation layer of the main heating pipeline proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the unfolded structure of the quick-release and quick-installation maintenance window device for the insulation layer of the main heating pipeline proposed in this utility model.

[0015] Figure 3 For the present utility model in Figure 2 A magnified structural diagram of point A in the middle.

[0016] Figure 4 This is a schematic diagram of the fixing mechanism of the quick-release and quick-installation maintenance window device for the insulation layer of the main heating pipeline proposed in this utility model.

[0017] Figure 5 This is a partial structural schematic diagram of the quick-release and quick-installation maintenance window device for the insulation layer of the main heating pipeline proposed in this utility model.

[0018] Figure 6 This is a schematic diagram of the sealing mechanism of the quick-release and quick-installation maintenance window device for the insulation layer of the main heating pipeline proposed in this utility model.

[0019] In the attached diagram: 1. Pipe body; 2. Base; 3. Viewing window cover; 4. Fixing seat; 5. Fixing block; 6. First sealing gasket; 7. Second sealing gasket; 8. Insulation filler block; 9. Sealing ring; 10. Auxiliary gasket; 11. Fixing groove; 12. Slot; 13. Knob; 14. Fixing pipe; 15. Assembly rod; 16. Touch ball; 17. Steel ball; 18. First assembly plate; 19. Second assembly plate; 20. Slide groove; 21. Insert rod; 22. Sliding joint. Detailed Implementation

[0020] 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.

[0021] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline includes a pipeline body 1, a base 2, an insulation block 8, and a viewing window cover 3 hinged to the base 2. A fixing mechanism is provided on one outer wall of the base 2 and the viewing window cover 3, and a sealing mechanism is provided between the base 2 and the viewing window cover 3. The fixing mechanism includes a fixing seat 4 and a fixing block 5. The fixing block 5 and the fixing seat 4 are respectively set on one outer wall of the window cover 3 and the base 2. The fixing seat 4 has a fixing groove 11 on its top outer wall and a slot 12 on its inner wall. The fixing block 5 has a fixing hole on its top outer wall. The fixing hole has a fixing tube 14 on its inner circumference. The fixing tube 14 and the fixing hole have two sliding slots 22 and two sliding grooves 20 on their inner circumferences, respectively. The fixing tube 14 has an assembly rod 15 inside. The assembly rod 15 has a second assembly plate 19 on its outer circumference. The second assembly plate 19 has a first assembly plate 18 connected to its top outer wall by a spring. The first assembly plate 18 has two insert rods 21 on its outer circumference. The assembly rod 15 has a knob 13 and a limiting component at both ends.

[0022] The base 2 is connected to the pipe body 1 via a flange, and the insulation block 8 is set on the base 2.

[0023] Specifically, the "pre-installed modular inspection window" replaces the "temporary destructive opening". During the construction or major repair stage, the inspection window base 2 and the outer steel pipe are welded together and foamed simultaneously. During the later inspection, the opening → inspection → closing can be completed in a short time by simply turning the knob 13. The whole process does not damage the insulation or introduce thermal bridges, and achieves repeated sealing.

[0024] This device adopts a quick-disassembly and quick-installation design, which simplifies the maintenance process of the insulation layer of the main heating pipeline. It avoids the irreversible damage of cutting open the outer steel pipe and chiseling away the insulation layer in one go, which is a traditional method. It significantly reduces the consumption of manpower and material resources and improves maintenance efficiency. An inspection window is set on the pipeline body 1. The opening and closing of the inspection window is controlled by a fixing mechanism. After opening, the inside of the pipeline can be observed directly without damaging the insulation layer. After maintenance is completed, the inspection window cover 3 is closed, and the integrity of the insulation layer is ensured by a sealing mechanism.

[0025] In practical applications, a "flexible hinge + buckle" can be used to replace the fixing mechanism: the hinge has a built-in torsion spring to keep the window cover 3 open, and the buckle can be locked by pressing down with one hand. When the buckle is released, it will automatically pop up. A "split-type insulation plug" can be used to replace the whole filling block: the insulation filling block 8 is made into two parts, which can be quickly inserted and removed through the dovetail groove, making it convenient to replace after aging in 10 seconds.

[0026] Reference Figure 2 , Figure 4 and Figure 5 In a preferred embodiment, the limiting component includes a ball 16, which is disposed at one end of the mounting rod 15. Two storage slots are provided on the inner circumference of the fixing tube 14, and steel balls 17 are disposed on the inner wall of the storage slots. The ball 16 contacts the steel balls 17, and the steel balls 17 cooperate with the slot 12.

[0027] Both the sliding joint 22 and the sliding groove 20 are L-shaped structures. The insert rod 21 passes through the inner wall of the sliding joint 22, and one end of the insert rod 21 is in contact with the inner wall of the sliding groove 20.

[0028] The "L"-shaped sliding groove 22 and the sliding channel 20 design enable the insertion rod 21 to achieve precise positioning and stable fixation during the sliding process, simplifying the operation process and improving the convenience of opening and closing the window cover 3. By rotating the assembly rod 15, the insertion rod 21 slides along the sliding channel 20 to the positioning point to fix the window cover 3. By rotating in the opposite direction, the insertion rod 21 slides out of the positioning point and unlocks the window cover 3.

[0029] It should be noted that by pressing and rotating the knob 13, the angle position of the insertion rod 21 is limited, thereby controlling the insertion depth of the assembly rod 15. In conjunction with the position of the two steel balls 17 in the limiting component at one end of the assembly rod 15, the opening and closing state of the window cover 3 is adjusted. When closed, the abutment ball 16 contacts the steel ball 17 and is locked into the slot 12, realizing a stable lock between the window cover 3 and the base 2. When open, rotating the knob 13, the insertion rod 21 is reset under the action of the spring and moves along the slide 20. The assembly rod 15 drives the abutment ball 16 to move upward, and the steel ball 17 disengages from the slot 12, thus unlocking the window cover 3.

[0030] Reference Figure 2 , Figure 3 and Figure 6 In a preferred embodiment, the sealing mechanism includes a first sealing gasket 6 and a second sealing gasket 7. The first sealing gasket 6 and the second sealing gasket 7 are respectively disposed on the top outer wall of the base 2 and the bottom outer wall of the window cover 3. A sealing ring 9 is disposed on the top outer wall of the first sealing gasket 6, and a plurality of auxiliary gaskets 10 arranged at equal intervals are disposed on the outer wall of the sealing ring 9. A mating groove is provided on the bottom outer wall of the second sealing gasket 7.

[0031] Specifically, a double-sealing structure is adopted to effectively prevent heat loss and moisture intrusion, ensuring the long-term effectiveness of the insulation layer and the safe operation of the pipeline. The base 2 is provided with a first sealing gasket 6 at the top and a second sealing gasket 7 at the bottom of the viewing window cover 3. When closed, the sealing ring 9 fits tightly with the mating groove, and the auxiliary gasket 10 fills the gap between the mating groove and the sealing ring 9 to form a double seal, preventing the penetration of heat and moisture.

[0032] Reference Figure 6In a preferred embodiment, the mating groove has an inverted trapezoidal structure, and the sealing ring 9, the auxiliary gasket 10 and the mating groove are used together.

[0033] The inverted trapezoidal docking groove design increases the sealing area and improves the sealing effect. At the same time, it facilitates the quick positioning and installation of the sealing ring 9, and improves the overall performance of the device. When the viewing window cover 3 is closed, the synergistic effect of the sealing ring 9, the auxiliary gasket 10 and the docking groove achieves a seamless seal between the viewing window cover 3 and the base 2. The auxiliary gasket 10 fills the tiny gaps to form an all-round seal.

[0034] Working principle: During use, the base 2 is securely connected to the pipe body 1 via the flange, and the insulation block 8 is pre-installed. During maintenance, the assembly rod 15 is driven by rotating the knob 13, and the insertion rod 21 slides along the "L"-shaped slide groove 20 to the unlock position. The spring resets, causing the ball 16 to disengage from the slot 12. After the viewing window cover 3 is opened, the inside of the pipe can be directly observed. After maintenance is completed, the viewing window cover 3 is closed, and the knob 13 is rotated to make the insertion rod 21 slide into the positioning point. The ball 16 and the steel ball 17 are locked into the slot 12. At this time, the sealing ring 9 fits tightly with the inverted trapezoidal mating groove, and the auxiliary pad 10 fills the gap to form a double seal, ensuring the integrity of the insulation layer.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A quick-release and quick-installation inspection window device for the insulation layer of a main heating pipeline, comprising a pipeline body (1), a base (2), an insulation block (8), and a viewing window cover (3) hinged to the base (2), characterized in that, A fixing mechanism is provided on one outer wall of the base (2) and the window cover (3), and a sealing mechanism is provided between the base (2) and the window cover (3); The fixing mechanism includes a fixing seat (4) and a fixing block (5). The fixing block (5) and the fixing seat (4) are respectively disposed on one outer wall of the window cover (3) and the base (2). A fixing groove (11) is provided on the top outer wall of the fixing seat (4), and a slot (12) is provided on the inner wall of the fixing groove (11). A fixing hole is provided on the top outer wall of the fixing block (5), and a fixing tube (14) is provided on the inner circumference of the fixing hole. The fixing tube (14) and the fixing... Two sliding slots (22) and two sliding grooves (20) are respectively opened on the inner circumference of the hole. An assembly rod (15) is provided inside the fixed tube (14). A second assembly plate (19) is provided on the outer circumference of the assembly rod (15). A first assembly plate (18) is connected to the top outer wall of the second assembly plate (19) by a spring. Two insert rods (21) are provided on the outer circumference of the first assembly plate (18). A knob (13) and a limiting component are respectively provided at both ends of the assembly rod (15).

2. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 1, characterized in that, The limiting component includes a ball (16), which is disposed at one end of the mounting rod (15). Two storage slots are opened on the inner circumference of the fixing tube (14), and steel balls (17) are disposed on the inner wall of the storage slots. The ball (16) contacts the steel balls (17), and the steel balls (17) cooperate with the slot (12).

3. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 2, characterized in that, Both the sliding joint (22) and the sliding groove (20) are L-shaped structures. The insert rod (21) passes through the inner wall of the sliding joint (22), and one end of the insert rod (21) is in contact with the inner wall of the sliding groove (20).

4. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 1, characterized in that, The sealing mechanism includes a first sealing gasket (6) and a second sealing gasket (7). The first sealing gasket (6) and the second sealing gasket (7) are respectively disposed on the top outer wall of the base (2) and the bottom outer wall of the window cover (3). A sealing ring (9) is disposed on the top outer wall of the first sealing gasket (6). A plurality of auxiliary gaskets (10) are disposed on the outer wall of the sealing ring (9). A mating groove is provided on the bottom outer wall of the second sealing gasket (7).

5. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 4, characterized in that, The docking groove has an inverted trapezoidal structure.

6. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 5, characterized in that, The sealing ring (9), the auxiliary gasket (10), and the mating groove are used together.

7. The quick-release and quick-installation inspection window device for the insulation layer of the main heating pipeline according to claim 1, characterized in that, The base (2) is connected to the pipe body (1) via a flange, and the insulation block (8) is placed on the base (2).

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