Waterproof structure for heat supply and cold supply heat preservation pipeline to penetrate through outer wall

Abstract

The utility model relates to the technical field of heat and cold supply pipeline waterproofing, in particular to a waterproof structure for a heat and cold supply heat preservation pipeline penetrating through an outer wall, which comprises the heat and cold supply heat preservation pipeline penetrating through the outer wall, a pre-heat-preservation layer is arranged outside the heat and cold supply heat preservation pipeline penetrating through the outer wall, and a pre-protection layer is sleeved outside the pre-heat-preservation layer. A steel flexible waterproof sleeve is arranged outside the pre-protection layer in a sleeved mode, the steel plate is connected with the steel flexible waterproof sleeve in a welded mode, the steel pipe is connected with the steel flexible waterproof sleeve in a welded mode, a gap is formed between the steel flexible waterproof sleeve and the pre-protection layer, and the gap is filled with a rubber water stop strip. The outer end of the steel pipe is sealed through a fluorosilicone resin winding belt. According to the utility model, the outer wall heat and cold supply pipeline and the outer wall sleeve are oppositely penetrated, and the steel plate is subjected to fluorosilicone resin anti-corrosion treatment, so that the service life can be greatly prolonged, and accidents are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing of heating and cooling pipelines, and in particular to a waterproof structure for heating and cooling insulation pipelines passing through external walls. Background Art

[0002] In recent years, due to the fact that customers have not reserved waterproof casing or the casing diameter is small, the heating and cooling insulation pipes have serious water seepage at the places where they pass through the exterior walls, and the number of corrosion and leakage accidents of heating and cooling pipes has gradually increased, especially at the places where they pass through the exterior walls, which are very prone to corrosion and difficult to maintain. For this reason, we have specially proposed a technical solution for heating and cooling pipes that pass through the exterior walls with waterproof performance. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a waterproof structure for heating and cooling insulation pipes passing through the exterior wall, which has a reasonable structure, a long service life and is safer.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0005] A waterproof structure for a heating and cooling insulation pipe passing through an outer wall, comprising a heating and cooling insulation pipe passing through the outer wall, a steel plate and a steel pipe.

[0006] The heating and cooling insulation pipe is provided with a pre-insulation layer on the outside where it passes through the outer wall, the pre-insulation layer is externally sleeved with a pre-protective layer, the pre-protective layer is externally sleeved with a waterproof casing, the steel plate is fixedly connected to the waterproof casing, the steel pipe is fixedly connected to the waterproof casing, a gap is provided between the steel flexible waterproof casing and the pre-protective layer, the gap is filled with a rubber water stop strip, and the outer end of the steel pipe is sealed by a fluorosilicone resin winding tape.

[0007] As an improvement: the pre-protection layer is made of high-density polyethylene.

[0008] In the preferred solution: the waterproof casing is a steel flexible waterproof casing, the steel plate is welded to the steel flexible waterproof casing, and the steel pipe is welded to the steel flexible waterproof casing.

[0009] As an improvement: the steel plate is an arc-shaped steel plate, the outer edge of the arc-shaped steel plate is 150mm higher than the steel flexible waterproof casing, the outer side of the arc-shaped steel plate and the steel flexible waterproof casing is provided with a fluorosilicone anti-corrosion coating layer, the outer side is first brushed with fluorosilicone anti-corrosion coating, and then the external waterproofing is done, and combined with the original exterior wall waterproofing.

[0010] As an improvement: the steel pipe protrudes 200mm from the steel flexible waterproof casing and is coated with fluorosilicone resin anti-corrosion paint.

[0011] Technical effects and advantages of the utility model:

[0012] By using fluorosilicone resin anti-corrosion treatment on the heating and cooling pipes, exterior wall casings and steel plates that penetrate the exterior wall, their service life can be greatly extended, effectively reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a waterproof structure for a heating and cooling insulation pipe passing through an exterior wall provided in an embodiment of the present application;

[0014] In the figure:

[0015] 1-Steel flexible waterproof casing, 2-Steel plate, 3-Rear bottom anchor bolt, 4-Steel pipe, 5-Fluorosilicone winding belt, 6-Rubber water stop strip.

[0016] Figure 1 In the figure, a is the opening, b is the exterior wall, and c is the heating and cooling insulation pipe with a polyethylene shell; A is outdoors and B is indoors. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0018] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0019] The connection method can be bonding, welding, bolt connection and other existing methods, depending on actual needs.

[0020] Example 1

[0021] See also Figure 1 In this embodiment, a waterproof structure for a heating and cooling insulation pipe passing through an exterior wall is provided, including a heating and cooling insulation pipe with an insulation layer polyethylene shell passing through the exterior wall. First, a steel flexible waterproof casing 1 is fixed to the exterior wall, two circles of rubber water stop strips 6 are pressed under the outer arc-shaped steel plate 2, and fixed with a rear bottom expansion anchor bolt 3. The steel plate 2 is welded to the steel flexible waterproof casing 1. After the steel pipe 4 is welded to the steel flexible waterproof casing 1, fluorosilicone resin is brushed, and the outer end of the steel pipe is sealed by a fluorosilicone resin winding tape 5.

[0022] A rubber water stop strip is added between the steel flexible waterproof casing 1 and the heating and cooling insulation pipe. The outer edge of the arc-shaped steel plate 2 is 150 mm higher than the waterproof casing, and the steel pipe 5 protrudes from the waterproof casing 1 by 200 mm.

[0023] The specific construction method of the protective layer is as follows:

[0024] 1. Construction conditions

[0025] 1) Before construction, the insulation layer and protective layer of the heating and cooling insulation steel pipes should be inspected, and the structure can only be constructed after passing the inspection.

[0026] 2) Before construction, pollutants such as oil, grease, dust, etc. on the surface of steel pipes and PE outer protective pipes should be removed, and defects such as weld nodules, burrs, and edges on the steel pipe surface should be removed. Rust removal should be carried out by sand blasting or tools. The rust removal level should reach Sa2.5 or above or St3, and comply with the provisions of "Surface Rust Level and Rust Removal Level of Steel Materials before Painting" GB / T8923.1.

[0027] 3) The ambient temperature must be above 5℃ and below 40℃.

[0028] 4) The relative humidity of the environment is less than 70%

[0029] 2. Construction requirements

[0030] 1) Treat the outer sheath of the pipeline and keep it clean.

[0031] 2) The thickness of fluorosilicone resin coating is 20μm to 30μm, and construction should be carried out within 5 minutes to 1 hour after coating.

[0032] 3) Wrap the fluorosilicone resin wrapping tape to 150mm outside the steel pipe.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A waterproof structure for heating and cooling insulation pipes passing through an outer wall, comprising heating and cooling insulation pipes, steel plates and steel pipes passing through the outer wall, characterized in that: The heating and cooling insulation pipe is provided with a pre-insulation layer on the outside where it passes through the outer wall, the pre-insulation layer is externally sleeved with a pre-protective layer, the pre-protective layer is externally sleeved with a steel flexible waterproof casing, the steel plate is welded to the steel flexible waterproof casing, the steel pipe is welded to the steel flexible waterproof casing, a gap is provided between the steel flexible waterproof casing and the pre-protective layer, the gap is filled with a rubber water stop strip, and the outer end of the steel pipe is sealed by a fluorosilicone resin winding tape.

2. A waterproof structure for heating and cooling insulation pipes passing through exterior walls according to claim 1, characterized in that: The pre-protection layer is made of high-density polyethylene.

3. A waterproof structure for heating and cooling insulation pipes passing through exterior walls according to claim 1, characterized in that: The steel plate is an arc-shaped steel plate, and the outer edge of the arc-shaped steel plate is 150 mm higher than the steel flexible waterproof casing.

4. A waterproof structure for heating and cooling insulation pipes passing through an exterior wall according to claim 1, characterized in that: The steel pipe protrudes 200mm from the steel flexible waterproof casing and is coated with fluorosilicone resin anti-corrosion paint on the outside.

5. A waterproof structure for heating and cooling insulation pipes passing through exterior walls according to claim 3, characterized in that: The outer sides of the arc-shaped steel plate and the steel flexible waterproof casing are provided with a fluorine-silicon anti-corrosion coating layer.

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