Preheating directly-buried hot water heat preservation pipe

Abstract

The utility model relates to the technical field of hot water heat preservation pipes, and discloses a preheating directly-buried hot water heat preservation pipe which comprises a protection pipe, a heat preservation pipe and a stabilizing device, the heat preservation pipe is arranged in the protection pipe, and the stabilizing device is arranged in the protection pipe; the stabilizing device comprises a sliding groove, a fixing rod, a sliding piece, a spring, a connecting rod and a clamping plate. The sliding groove is formed in the inner wall of the protection pipe, the fixing rod is fixedly connected to the inner wall of the sliding groove, the sliding piece is slidably connected to the outer wall of the fixing rod, the outer wall of the fixing rod is movably sleeved with the spring, and the two ends of the spring are fixedly connected with the inner wall of the sliding groove and the surface of the sliding piece respectively. According to the preheating directly-buried hot water heat preservation pipe, the stabilizing device is arranged to achieve a buffering effect when the heat preservation pipe vibrates, the situation that the heat preservation pipe is damaged due to external pressure is avoided, the stability of the heat preservation pipe is improved, and the situation that the later maintenance cost is increased due to the fact that the heat preservation pipe is frequently damaged is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water insulation pipes, in particular to a preheating direct-buried hot water insulation pipe. Background Art

[0002] Prefabricated direct-buried insulated pipes are widely used in liquid and gas transportation pipelines, chemical pipeline insulation projects, petroleum, chemical industry, central heating networks, central air-conditioning ventilation ducts, municipal engineering, etc. They are buried under the surface and have the advantages of reducing project costs, low heat loss, energy saving, corrosion resistance, good insulation performance, long service life, less space, and environmental protection, so the service life is extremely important.

[0003] For example, the Chinese patent: CN207213372U, the technical solution disclosed in this patent is as follows: a composite thermal insulation pipe for a hot water system is disclosed, including an outer protective pipe, a sunscreen layer, a thermal insulation layer and an inner pipe, wherein: the inner pipe is placed in the outer protective pipe, the thermal insulation layer wraps the inner pipe and is located between the outer protective pipe and the inner pipe, the sunscreen layer wraps the thermal insulation layer and is located between the outer protective pipe and the thermal insulation layer; a circular ring is provided at the first end of the outer protective pipe, a spherical elastic bead is provided at the second end of the outer protective pipe, an elastic connector is provided between the outer protective pipe and the elastic bead, and the circular ring and the elastic bead are detachably connected. The utility model has a novel and reasonable structure, integrating the effects of thermal insulation, sunscreen, heat insulation, sound absorption and shock absorption. In addition, the utility model can also independently replace the outer protective pipe or the sunscreen layer or the thermal insulation layer or the inner pipe, thereby reducing the production and use costs.

[0004] However, in actual use, since the pipeline is buried underground and laid directly, the outside of the insulation pipe is inevitably subjected to external pressure and is easily damaged. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a preheating directly buried hot water insulation pipe.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a preheating direct-buried hot water insulation pipe, comprising a protective pipe, an insulation pipe, and a stabilizing device, wherein the insulation pipe is arranged inside the protective pipe, and the stabilizing device is arranged inside the protective pipe; the stabilizing device comprises a slide groove, a fixed rod, a sliding member, a spring, a connecting rod, and a splint; the slide groove is opened on the inner wall of the protective pipe, the fixed rod is fixedly connected to the inner wall of the slide groove, the sliding member is slidably connected to the outer wall of the fixed rod, the spring is movably sleeved on the outer wall of the fixed rod, and the two ends of the spring are respectively fixedly connected to the inner wall of the slide groove and the surface of the sliding member, the connecting rod is hinged to the upper end of the sliding member through a hinge seat, and the splint is hinged to the other end of the connecting rod through a hinge seat.

[0009] Preferably, two of each of the sliding member, spring and connecting rod are provided and are symmetrically arranged on both sides of the fixing rod.

[0010] Preferably, two stabilizing devices are provided on the same vertical plane and are symmetrically arranged at the upper and lower ends of the insulation pipe.

[0011] Preferably, a side of the splint close to the thermal insulation pipe is provided with anti-slip grooves.

[0012] Preferably, the clamping plate is arranged in an arc shape, and a side of the clamping plate close to the insulation pipe is tightly fitted to the insulation pipe.

[0013] Preferably, the thermal insulation pipe consists of a thermal insulation layer, a heat preservation layer, a sound absorption layer and a protective layer. The thermal insulation layer is arranged on the periphery of the thermal insulation layer, the sound absorption layer is arranged on the periphery of the thermal insulation layer, and the protective layer is arranged on the periphery of the sound absorption layer.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a preheating direct-buried hot water insulation pipe, which has the following beneficial effects:

[0016] 1. This preheating direct-buried hot water insulation pipe can play a buffering effect when the insulation pipe vibrates by setting a stabilizing device, avoiding damage to the insulation pipe due to external pressure, improving the stability of the insulation pipe, and preventing the insulation pipe from being frequently damaged, which leads to an increase in subsequent maintenance costs.

[0017] 2. This preheating direct-buried hot water insulation pipe, by setting up a heat insulation layer and a thermal insulation layer, on the one hand prevents cold air from entering the interior of the insulation pipe, on the other hand prevents the loss of heat inside the insulation pipe, thereby improving the insulation effect. In addition, the sound-absorbing layer can reduce noise during the transportation of hot water by the insulation pipe, and the protective layer can improve the protective effect of the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the upper end cross-sectional structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the thermal insulation pipe of the utility model.

[0023] In the figure: 1. protective tube; 2. thermal insulation tube; 301. slide groove; 302. fixing rod; 303. sliding member; 304. spring; 305. connecting rod; 306. splint; 4. thermal insulation layer; 5. thermal insulation layer; 6. sound absorbing layer; 7. protective layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] like Figure 1-4 As shown, the utility model provides a preheating direct-buried hot water insulation pipe, including a protection pipe 1, an insulation pipe 2, and a stabilizing device. The insulation pipe 2 is arranged inside the protection pipe 1, and the stabilizing device is arranged inside the protection pipe 1; the stabilizing device includes a slide groove 301, a fixed rod 302, a sliding member 303, a spring 304, a connecting rod 305, and a clamping plate 306; the slide groove 301 is opened on the inner wall of the protection pipe 1, the fixed rod 302 is fixedly connected to the inner wall of the slide groove 301, the sliding member 303 is slidably connected to the outer wall of the fixed rod 302, the spring 304 is movably sleeved on the outer wall of the fixed rod 302, and the two ends of the spring 304 are respectively fixedly connected to the inner wall of the slide groove 301 and the surface of the sliding member 303, the connecting rod 305 is hinged to the upper end of the sliding member 303 through a hinge seat, and the clamping plate 306 is hinged to the other end of the connecting rod 305 through a hinge seat.

[0027] Two sliding members 303 , two springs 304 and two connecting rods 305 are provided and are symmetrically arranged on both sides of the fixing rod 302 .

[0028] Two stabilizing devices are arranged on the same vertical plane and are symmetrically arranged at the upper and lower ends of the insulation pipe 2.

[0029] The side of the clamping plate 306 close to the thermal insulation pipe 2 is provided with anti-slip grooves.

[0030] The clamping plate 306 is configured to be arc-shaped, and a surface of the clamping plate 306 close to the thermal insulation pipe 2 is tightly fitted to the thermal insulation pipe 2 .

[0031] In this embodiment, a stabilizing device is provided to provide a buffering effect when the insulation pipe 2 vibrates, thereby avoiding damage to the insulation pipe 2 due to external pressure, improving the stability of the insulation pipe 2, and preventing the insulation pipe 2 from being frequently damaged, thereby preventing an increase in subsequent maintenance costs.

[0032] During use, after the insulation tube 2 is installed inside the protective tube 1, when the insulation tube 2 vibrates and shakes when the ground is under pressure, the insulation tube 2 will first vibrate and generate pressure on the splint 306, and then the splint 306 will transmit the pressure to the connecting rod 305, and then the connecting rod 305 will apply pressure to the sliding member 303, so that the sliding member 303 slides to both sides on the outer wall of the fixed rod 302, thereby squeezing the spring 304, thereby achieving a buffering effect, thereby ensuring the stability of the insulation tube 2.

[0033] Example 2

[0034] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the thermal insulation pipe 2 consists of a thermal insulation layer 4, a thermal insulation layer 5, a sound absorption layer 6, and a protective layer 7. The thermal insulation layer 5 is arranged on the periphery of the thermal insulation layer 4, the sound absorption layer 6 is arranged on the periphery of the thermal insulation layer 5, and the protective layer 7 is arranged on the periphery of the sound absorption layer 6.

[0035] In this embodiment, by providing a heat insulating layer 4 and a thermal insulation layer 5, on the one hand, cold air is prevented from entering the interior of the thermal insulation pipe 2, and on the other hand, the loss of heat inside the thermal insulation pipe 2 is prevented, thereby improving the thermal insulation effect. In addition, a sound absorbing layer 6 is provided to reduce noise during the transportation of hot water by the thermal insulation pipe 2, and a protective layer 7 can improve the protective effect of the thermal insulation pipe 2.

[0036] When in use, the insulation layer 4 can prevent external cold air from entering, the thermal insulation layer 5 can insulate the hot water inside the thermal insulation pipe 2, the sound absorption layer 6 can reduce the sound generated when the hot water is transported, and the protective layer 7 can improve the protectiveness of the thermal insulation pipe 2.

Claims

1. A preheating direct-buried hot water insulation pipe, comprising a protection pipe (1), an insulation pipe (2), and a stabilizing device, characterized in that: The thermal insulation tube (2) is arranged inside the protective tube (1), and the stabilizing device is arranged inside the protective tube (1); The stabilizing device comprises a slide groove (301), a fixing rod (302), a sliding member (303), a spring (304), a connecting rod (305), and a clamping plate (306); The slide groove (301) is provided on the inner wall of the protection tube (1); the fixed rod (302) is fixedly connected to the inner wall of the slide groove (301); the sliding member (303) is slidably connected to the outer wall of the fixed rod (302); the spring (304) is movably sleeved on the outer wall of the fixed rod (302); and the two ends of the spring (304) are respectively fixedly connected to the inner wall of the slide groove (301) and the surface of the sliding member (303); the connecting rod (305) is hinged to the upper end of the sliding member (303) through a hinge seat; and the clamping plate (306) is hinged to the other end of the connecting rod (305) through a hinge seat.

2. A preheating direct buried hot water insulation pipe according to claim 1, characterized in that: The sliding member (303), the spring (304) and the connecting rod (305) are each provided with two and are symmetrically arranged on both sides of the fixed rod (302).

3. A preheating direct buried hot water insulation pipe according to claim 1, characterized in that: Two stabilizing devices are arranged on the same vertical plane and are symmetrically arranged at the upper and lower ends of the thermal insulation pipe (2).

4. A preheating direct buried hot water insulation pipe according to claim 1, characterized in that: The side of the clamping plate (306) close to the thermal insulation pipe (2) is provided with anti-slip grooves.

5. The preheating direct-buried hot water insulation pipe according to claim 1 is characterized in that: The clamping plate (306) is arranged in an arc shape, and a surface of the clamping plate (306) close to the thermal insulation pipe (2) is tightly fitted to the thermal insulation pipe (2).

6. A preheating direct buried hot water insulation pipe according to claim 1, characterized in that: The thermal insulation pipe (2) is composed of a thermal insulation layer (4), a thermal insulation layer (5), a sound absorption layer (6), and a protective layer (7); the thermal insulation layer (5) is arranged on the periphery of the thermal insulation layer (4), the sound absorption layer (6) is arranged on the periphery of the thermal insulation layer (5), and the protective layer (7) is arranged on the periphery of the sound absorption layer (6).

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