Heat preservation, sound insulation and insulation structure of ship sailing in polar region

Abstract

The invention discloses a heat preservation, sound insulation and insulation structure of a polar sailing ship, which comprises an enclosure wall, a first insulation layer, a galvanized steel wire mesh, an air layer, a second insulation layer and aluminum foil glass wool cloth, the first insulation layer is fixedly laid on the enclosure wall through insulation studs, the galvanized steel wire mesh is laid on the first insulation layer, and the air layer is arranged on the second insulation layer. The air layer is arranged between the galvanized steel wire mesh and the second insulation layer, the second insulation layer is laid on the galvanized steel wire mesh, and the aluminum foil glass wool cloth is laid on the second insulation layer. According to the heat preservation, sound insulation and insulation structure of the polar navigation ship, by adding the insulation structure of the air layer, the heat conductivity of insulation is reduced, noise is absorbed and isolated at the same time, then the defects of a traditional insulation structure can be overcome, and the heat preservation requirement and the construction and maintenance requirement of the polar navigation ship are met; meanwhile, through the combination of multiple insulation layers and air layers, the same heat conductivity U value and different insulation combination forms can be achieved to meet the requirements of the actual heat preservation and sound insulation design.

Description

Technical Field

[0001] The invention relates to a thermal insulation, sound insulation and insulating structure for polar voyage ships. Background Art

[0002] Polar ships are a general term for vehicles that can sail or anchor in cold icy waters such as the Arctic and Antarctic for transportation or operations. As global temperatures rise, the navigability of the Arctic route has greatly increased. Compared with traditional routes that go around the Cape of Good Hope or the Suez Canal to enter Europe, the Arctic route has obvious advantages in timeliness and safety. The Arctic winter is cold and long, and the lowest temperature in the area around the route can reach below -50 degrees Celsius in winter. The average temperature in January is between -40 degrees Celsius and 0 degrees Celsius. Therefore, in order to ensure the normal navigation of ships, the safety of cargo and the health of personnel, the insulation requirements are higher than those in non-polar areas. The requirements in some regions are more stringent. The current conventional thermal insulation adopts thicker and denser rock wool or glass wool to reduce the thermal conductivity U value or increase the thermal impedance R value. However, the thickness of the thermal insulation is large, which occupies the space in the cabin and is difficult to construct. At the same time, after the insulation absorbs water and becomes powdery, the thermal conductivity increases, which affects the overall thermal insulation effect and requires full thickness replacement. At the same time, according to industry practice, ship thermal insulation is also used as sound insulation. Therefore, according to the actual needs of the shipbuilding industry, it is of great practical significance to design a new insulation configuration that reduces the disadvantages of traditional thermal insulation and sound insulation. Summary of the Invention

[0003] The purpose of the present invention is to provide a thermal insulation, sound insulation and insulation structure for polar navigation ships, which is used to solve the disadvantages of the existing thermal insulation, sound insulation and insulation structures in the ship industry when used at extremely low altitudes.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a thermal insulation and sound insulation structure for polar navigation ships, comprising a wall (1), a first layer of insulation (3), a galvanized steel wire mesh (4), an air layer (6), a second layer of insulation (7) and an aluminum foil glass cloth (8), wherein the first layer of insulation (3) is fixedly laid on the wall (1) by an insulation nail (2), the galvanized steel wire mesh (4) is laid on the first layer of insulation (3), the insulation nail (2) penetrates the first layer of insulation (3) and is pressed by a through-cap (5), the air layer (6) is arranged between the galvanized steel wire mesh (4) and the second layer of insulation (7), the second layer of insulation (7) is laid on the galvanized steel wire mesh (4), the aluminum foil glass cloth (8) is laid on the second layer of insulation (7), and the insulation nail (2) penetrates the second layer of insulation (7) and is fixed by an insulation cap (9).

[0005] The surrounding wall (1) is made of steel or aluminum.

[0006] The insulating stud (2) is a full-thread or half-thread structure with a diameter of ≥3mm.

[0007] The first layer of insulation (3) and the second layer of insulation (7) are both hard bare cotton with a thickness of 50 mm.

[0008] The thickness of the air layer (6) is 10 mm.

[0009] The insulating cap (9) can be replaced by an insulating pressing piece.

[0010] The present invention provides a thermal insulation and sound insulation configuration for polar navigation ships. By adding an air layer to the insulation configuration, the thermal conductivity of the insulation is reduced while absorbing and isolating noise. This avoids the drawbacks of traditional insulation configurations and meets the thermal insulation needs, construction, and maintenance requirements of polar navigation ships. At the same time, through the combination of multiple layers of insulation and air layers, the same thermal conductivity U value can be achieved, and different insulation combinations can meet the actual requirements of thermal insulation and sound insulation design. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a thermal insulation, sound insulation and insulation configuration of a polar navigation ship according to the present invention.

[0012] In the figure: 1. Wall; 2. Insulation spikes; 3. First layer of insulation; 4. Galvanized steel wire mesh; 5. Through-cap; 6. Air layer; 7. Second layer of insulation; 8. Aluminum foil and glass fiber cloth; 9. Insulation cap. DETAILED DESCRIPTION

[0013] like Figure 1As shown, the thermal insulation and sound insulation configuration of polar voyage ships is a sandwich structure. Through the configuration of insulation layer + air layer + insulation layer, the thermal conductivity is reduced and noise absorption and isolation are achieved through the multi-layer porous structure. In order to further improve the thermal insulation and sound insulation effects, multiple layers of this type of configuration can be superimposed and combined into a multi-layer air plus multi-layer insulation form. The thickness of each layer of insulation can be adjusted and combined according to actual needs. In order to prevent air convection, which leads to an increase in U value, the air layer is usually set to about 10mm. During the use of the insulation near the wall, due to the generation of condensed water, the existence of the air layer will reduce the damage to the subsequent insulation such as the second layer. At the same time, after the damage is found during the inspection, only the inner insulation can be replaced to reduce the repair cost, including the wall 1, the first layer of insulation 3, and galvanized steel wire. Mesh 4, air layer 6, second layer of insulation 7 and aluminum foil glass cloth 8, the first layer of insulation 3 is fixed on the wall 1 by insulating nails 2, the wall 1 adopts a steel or aluminum structure wall, the galvanized steel wire mesh 4 is laid on the first layer of insulation 3, the insulating nails 2 penetrate the first layer of insulation 3 and are tightened by the through-cap 5, the insulating nails 2 are full-thread or semi-thread structure, with a diameter ≥3mm, the air layer 6 is arranged between the galvanized steel wire mesh 4 and the second layer of insulation 7, the air layer 6 is 10mm thick, the second layer of insulation 7 is laid on the galvanized steel wire mesh 4, the aluminum foil glass cloth 8 is laid on the second layer of insulation 7, the insulating nails 2 penetrate the second layer of insulation 7 and are fixed by the insulating cap 9, the insulating cap 9 can be replaced by an insulating pressing sheet, the first layer of insulation 3 and the second layer of insulation 7 are both hard bare cotton with a thickness of 50mm.

[0014] The thermal insulation and sound insulation configuration of the polar navigation ship of the present invention is to lay the first layer of insulation on the steel or aluminum structural wall of the ship with thermal insulation and sound insulation requirements, and to fix it to the wall by spot welding or gluing the insulation nails. The relevant joints are well treated with anti-corrosion. The surface density of the nails meets the requirements of insulation laying. The material of the nails and the caps or pressing pieces is the same as the structural material or SUS316 / 316L. The length L of the nails meets the requirements of multi-layer insulation and air layer and fixing the caps or pressing pieces. The nails should be full-threaded or half-threaded nails used to fix the caps of the first layer of insulation, with a diameter of not less than 3mm; the configuration of a single-layer air layer, The first layer of insulation is made of hard bare cotton with a thickness of about 50mm. The studs penetrate the insulation and the surrounding wall to press it tightly. At the same time, galvanized steel wire mesh is used for laying and penetrated and pressed with a penetration cap. The thickness after the penetration cap is penetrated is exactly about 10mm. This thickness is used to ensure that the air layer is about 10mm. Furthermore, the second layer of insulation is laid, which is 50mm hard insulation with aluminum foil and glass fiber cloth on the outer surface. The studs penetrate the insulation directly and are fixed with insulating buckle caps or insulating pressing sheets. For multi-layer configurations of this type, the configuration can be copied to combine a multi-layer sandwich insulation and sound insulation configuration that meets the requirements. In principle, the internal hard The insulation of the material shall be made of hard bare cotton and galvanized steel wire mesh and through-cap, and only the outermost layer of insulation shall be made of aluminum foil glass cloth; Working principle: In order to improve the thermal insulation and sound insulation capabilities required for polar navigation of existing ships without making any fundamental modifications, the present invention combines the insulation layer and the air layer, and cleverly realizes a 10mm air layer by using a through-insulation cap in the middle. The edge of the insulation of the entire area is sealed and pasted to the hull structure with aluminum foil tape, which not only reduces possible air convection but also realizes the purpose of air as a heat insulation medium. At the same time, since the hardness of the insulation itself is not enough to support the long-term use The support body is supported, so a gap of less than 10 mm is formed in the middle of the fixed rivet, so that the overall air layer is similar to a mesh structure, which further reduces the possibility of convection. The thermal insulation and sound insulation configuration of the polar navigation ship of the present invention increases the insulation configuration of the air layer to achieve the reduction of the thermal conductivity of the insulation while absorbing and isolating the noise, thereby avoiding the disadvantages of the traditional insulation configuration, meeting the insulation needs and construction and maintenance needs of the polar navigation ship, and at the same time, through the combination of multi-layer insulation and air layers, the same thermal conductivity U value can be achieved, and different insulation combinations can meet the actual insulation and sound insulation design needs.

Claims

1. A thermal insulation, sound insulation and insulation configuration for polar navigation ships, characterized in that: The invention comprises a surrounding wall (1), a first layer of insulation (3), a galvanized steel wire mesh (4), an air layer (6), a second layer of insulation (7) and an aluminum foil glass cloth (8), wherein the first layer of insulation (3) is fixedly laid on the surrounding wall (1) by means of insulating studs (2), the galvanized steel wire mesh (4) is laid on the first layer of insulation (3), the insulating studs (2) penetrate the first layer of insulation (3) and are compressed by a through-cap (5), the air layer (6) is arranged between the galvanized steel wire mesh (4) and the second layer of insulation (7), the second layer of insulation (7) is laid on the galvanized steel wire mesh (4), the aluminum foil glass cloth (8) is laid on the second layer of insulation (7), and the insulating studs (2) penetrate the second layer of insulation (7) and are fixed by means of an insulating cap (9).

2. The thermal insulation, sound insulation and insulation structure of a polar navigation ship according to claim 1, characterized in that: The enclosure wall (1) is a steel or aluminum structure enclosure wall.

3. The thermal insulation, sound insulation and insulation structure of a polar navigation ship according to claim 1, characterized in that: The insulating stud (2) is a full-thread or half-thread structure with a diameter of ≥3 mm.

4. The thermal insulation, sound insulation and insulation structure of a polar navigation ship according to claim 1, characterized in that: The first layer of insulation (3) and the second layer of insulation (7) are both hard bare cotton with a thickness of 50 mm.

5. The thermal insulation, sound insulation and insulating structure of a polar navigation ship according to claim 1, characterized in that: The thickness of the air layer (6) is 10 mm.

6. The thermal insulation, sound insulation and insulating structure of a polar navigation ship according to claim 1, characterized in that: The insulating cap (9) can be replaced by an insulating pressing sheet.

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