RU2489636C1 - Mobile heat and sound insulating module for objects of complex geometrical shape - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: module consists of external protective cover (1) representing a closed cavity - cover. The cover includes insert (8) that is made depending on stereometry of a heat and sound insulation object. Modules made for objects of different shapes have passed tests and proved operating reliability of utilities. Use of mobile heat and sound insulating modules will allow reducing energy losses by many times (up to 20 times) and noise level to 30 dB.

EFFECT: mobile modules have simple design and can be easily installed, removed and used, and when proper operating conditions are met, their service life will be at least 20 years at heat insulation points.

5 cl, 6 dwg

Description

The invention relates to the field of rapidly replaceable thermal insulation of objects of complex geometric shapes, in particular, having a different shape both in planimetry and in stereometry, and can be used for the isolation of engineering communications nodes requiring regular access, hard-to-reach nodes, stop valves and complex pipe nodes geometry as heat and sound insulation.

A flexible heat-insulating device is known, containing a base in the form of a nonwoven material, a metal layer attached to the base, and adhesive deposited on the inner surface of the metal layer. As non-woven material used, for example, mineral wool, glass wool or polyurethane having low thermal conductivity (WO 9208924 A1, 05/29/1992).

However, the insulating properties of this device have low efficiency due to the low coefficient of resistance to vapor permeation to maintain a given internal temperature of the object.

Also known is a vacuum casing for thermal insulation containing a porous organic or inorganic filling material placed inside a shell made of at least one multilayer barrier sheet of a rectangular configuration, which contains one polymer or inorganic central layer having insulating properties with respect to atmospheric gases, the upper and lower layers of the barrier type, made of mutually heat-sealable polymeric materials (RU No. 2253792, F16L 59/06, 2001).

The disadvantage of this heat-insulating casing is the presence of heat-sealing edges, which are very brittle, undergo cracking, creating the possibility of atmospheric gases penetrating into the casing and, thus, jeopardizing its heat-insulating properties.

Closest to the invention and taken as a prototype is a collapsible design for thermal insulation, consisting of two half-cases made of heat-insulated foamed polyurethane, each half-case of which has one or more connecting surfaces and a reinforcing heat-insulating layer of rigid or flexible polyurethane foam with a high apparent density of 1-10 thickness mm The upper and end mating surfaces of the half-shells have grooves for accommodating the sealing rings or half-rings in them. The connected semi-cases by the upper connecting surfaces form a truncated cone. From the outside, the structure has a protective shell (RU No. 39181, F16L 59/16, 2004).

The disadvantage of this design is the difficulty of manufacturing and assembling-disassembling, due to the need to make grooves, recesses and the presence of o-rings or half rings, as well as leakage of joints, which reduces the effectiveness of thermal and sound insulation of the object.

The technical result of the invention is to increase the operational efficiency of engineering systems of complex configuration by reducing the energy flow between the object and the environment and maintaining the required temperature in the range from -200 ° C to + 1000 ° C while observing the safety requirements for the operation of a mobile thermal insulation module.

The specified technical result is achieved by the fact that in the known mobile heat and sound insulating module for objects of complex geometric shape containing an outer protective shell inside which an inorganic or polymer filler is placed, according to the invention, the internal inorganic or polymer filler is made in the form of an insert with a thickness of 3 mm to 200 mm, having an expanded configuration, depending on the geometry of the object of heat and sound insulation, the outer protective shell is made in the form of a closed strip and, the internal volume of which is 1.1 volumes of the liner, and consists of reinforced fiberglass with a polymer coating on a silicone base, tensile strength of which is 3000 N / 5 cm on the base, 1600 N / 5 cm on the weft, and thermal conductivity is not more than 0.24 W / (m · K), while the outer protective shell has a shape identical to the configuration of the liner in the unfolded form, sewn with either polyamide, or polyester, or water-repellent polyamide threads, and on the outside of the protective shell are tightly connected elements of fix installation and sealing of the mobile heat and sound insulation module at the facility.

The technical result is also achieved by the fact that the insert is made of either foam rubber or stone wool or glass wool, as well as by the fact that the outer protective shell is made of fiberglass with a polymer layer and aluminum foil, as well as by the fact that the module fixation and sealing elements on the object is made in the form of either belts or overlapping reeds with a double-sided Velcro lock (Velcro), or belts with brackets, as well as the fact that the outer protective shell on the inner side has a slot for insertion into the cavity of the insert and which are superposed on each other and provided with locking connection.

Figure 1 shows a mobile heat and sound insulation module for objects of complex stereometric shape (general view - an option for a tee, ball valve, etc.);

figure 2 is the same (in expanded form);

figure 3 is the same (view aa of figure 2);

figure 4 - mobile heat and sound insulating module (Thermocase) for valves, ball valves and other similar valves, fixed at the joints with slings and staples;

figure 5 - mobile heat and sound insulating module (Thermocover), fixed using Velcro clips (Velcro) with anthers at the ends, stretched cord;

6 - mobile heat and sound insulation module for objects of complex geometric shapes (6 "a" for circulation pumps of the hot water supply system; 6 "b" for pumps of the heating system; 6 "c" for the heat exchanger of an individual heat point).

Mobile heat and sound insulation modules for objects of complex geometric shapes are removable flexible heat and sound insulation structures of reusable use. They are made in various modifications in accordance with customer requirements for specific objects of technical systems.

The module consists of an outer protective shell 1, representing a closed cavity - a cover. The material of the protective shell is selected according to the following criteria:

- necessary temperature limits;

- resistance to ultraviolet rays;

- hydrophobicity - the ability to absorb moisture (allowed or not);

- flammability (NG, G1-G4 or no specific requirements);

- elasticity (elastic or weakly elastic material);

- flexibility (when folding and twisting should not crack or it does not matter);

- resistance to aggressive environments (for example, to chemicals or to sea water).

As an option, FIG. 1 shows a module whose protective sheath 1 is made of dielectric fiberglass with a polymer coating on a silicone base (FIBERFLEX brand), is made of glass fibers with plain weave. The total thickness with a coating of 0.44 mm, tensile strength: equal to 3000 N / 5 cm (base), 1600 N / 5 cm (weft), thermal conductivity ≤0.24 W / (m · K), temperature range minus 200 ° С - plus 175 ° С, combustibility G1 (www.torosflex.ru, 02.29.2012).

From the outside, fastening and sealing elements are provided on the protective sheath: staples 2 with polyester straps 3. Belts 3 are sewn to the outer protective layer 1 by polyamide or polyester threads 4 (www.conefill.ru, 02.29.2012) 3. Belts can be requested sewn with special water-repellent polyamide yarn (www.conefill.ru, 02.29.2012). There may be cords 5 (figure 5) for tightening the end elements of the module (on request). Alternatively, overlapping tongues 6 with the Velcro inversion retainer (double-sided Velcro) can be used (FIG. 5).

From the ends of the mobile heat and sound insulation module, anthers 7 can be provided to protect against penetration of dust and moisture into the module (Fig. 5).

On the inner side of the protective shell 1, a slot (not shown) can be made for inserting the liner 8. The edges of this slot are superimposed and also have similar locking joints.

The volume of the outer protective shell is made more than the volume of the liner 8 and is 1.1 of its volume. This is due to the need to cover (bend) the insulated surface of the object.

Insert 8 is made depending on the stereometry of the object of heat and sound insulation (square, rhombus, ball, cylinder, cone, polygon of complex configuration: ball valves, gate valves, check valves, butterfly valves, mud filters, filters, bellows inserts, heat exchangers and pumps).

As an option, insert 8 is made of synthetic foam rubber, the temperature range of which is from -200 ° C to + 175 ° C, thermal conductivity ≤0.036 W / (m · K), combustibility G1, diffusion resistance of water vapor µ≥10000. The thickness of the liner varies from 3 to 200 mm, depending on the requirements for reducing the heat flux density or depending on the requirements for the surface temperature of the mobile heat and sound insulation module.

The insert 8 can be introduced into the outer shell 1 in the manufacture of a large series of the same type of modules and stitched with threads around the perimeter of the module. When heat and sound insulation of unique structures of complex geometry, the liner 8 is introduced into the outer shell through a slot on its inner side (not shown).

The manufactured heat and sound insulating modules for objects of complex geometric shape were tested and confirmed the reliability of the utilities.

Example. In the central heating center of the “Real” supermarket in the south-east of Moscow, mobile heat and sound insulation modules were installed on the following objects: ball valves, filters, gate valves, butterfly valves, check valves and heat exchangers. The above technical nodes were the structural elements of the heating system of this supermarket, the technical carrier was water with a temperature from + 90 ° С to + 130 ° С. The outer shell of the claimed module was made in accordance with the formula of the utility model, and the inserts for ball valves, filters, gate valves, butterfly valves, check valves were made of foam rubber with a thermal conductivity of ≤0.036 W / (m · K), 13 mm thick, and the liners for heat exchangers were made of foamed rubber with a thermal conductivity of ≤0.036 W / (m · K), 19 mm thick. During the operation of the inventive modules at the indicated facility, the temperature on the surface of the modules did not exceed + 40 ° C, which meets the safety requirements and at the same time allows for quick installation / removal of the modules.

In addition, the use of the claimed modules led to a significant reduction in noise, which confirmed their soundproofing properties.

The use of mobile heat and sound insulation modules will significantly reduce energy losses (up to 20 times), noise level up to 30D6 (tests according to German standards DIN 52219 and DIN EN ISO 3822-1 (www.armacell.com. 02.29.2012).

Mobile heat and sound insulation modules are simple and easy to install, dismantle, use, and subject to the conditions of proper operation, their service life will be at least 20 years at thermal insulation nodes with temperatures from -200 ° С to + 1000 ° С.

Claims (5)

1. Mobile heat and sound insulation module for objects of complex geometric shape, containing an outer protective shell inside which an inorganic or polymer filler is placed, characterized in that the internal inorganic or polymer filler is made in the form of an insert with a thickness of 3 mm to 200 mm, having an expanded configuration depending on the geometry of the object of heat and sound insulation, the outer protective shell is made in the form of a closed cavity, the internal volume of which is 1.1 volumes of the liner, and reinforced fiberglass fabric with a polymer coating on a silicone base, tensile strength of which is 3000 N / 5 cm on the base, 1600 N / 5 cm on the weft, and thermal conductivity not more than 0.24 W / (m · K), this outer protective shell has a shape identical to the configuration of the liner in the unfolded form, stitched either with polyamide, or polyester, or water-repellent polyamide threads, and on the outer side of the protective shell are rigidly connected elements for fixing and sealing the mobile heat and sound insulation module at the facility. 2. The mobile heat and sound insulation module according to claim 1, characterized in that the liner is made of either foam rubber or stone wool or glass wool. 3. Mobile heat and sound insulation module according to claim 1, characterized in that the outer protective shell is made of fiberglass with a polymer layer and aluminum foil. 4. The mobile heat and sound insulation module according to claim 1, characterized in that the fixation and sealing elements of the module on the object are made in the form of either belts or overlapping tongues with a double-sided Velcro latch (Velcro), or belts with brackets. 5. The mobile heat and sound insulation module according to claim 1, characterized in that the outer protective shell on the inner side for entering into the cavity of the liner has a slot, the edges of which are superposed on each other and provided with a locking connection.

Images