RU2230870C2 - Multi-layer unit for glazing object to be protected - Google Patents

Abstract

FIELD: building industry, particularly building units for glazing building openings, windows of railroad cars.

SUBSTANCE: unit has rear, outer and inner glass plates, metal frame, sealing means and additional spacing frame with perforations and depression into which dehumidifier is placed. Rear and inner glass plates are united by spacing frame into one-compartment glass pack. Metal frame is connected by sealing means to outer ends of rear and inner glass plates. Outer glass plate is fixed by sealing means to metal frame along outer perimeter thereof. Inner glass plate is formed of polymeric impact-resistant glass and has protective layer for protection against ultra-violent radiation. Outer glass plate is made of polished silicate glass. Rear glass plate is formed of injury-safe glass having toning layer sprayed on inner surface thereof. Glass pack chamber is filled with gas. Relation between outer glass plate thickness and inner glass plate thickness is 0.7 - 1.0.

EFFECT: provision of necessary climatic conditions, increased maintainability.

6 cl, 1 dwg

Description

The invention relates to the glass industry and is intended for use in the creation of multilayer impact-resistant glazing products in transport, mainly for railway cars, to provide protection against external influences on objects located in them, as well as for glazing buildings and structures.

Known bulletproof safety glass in the form of a double-glazed window containing an outer sheet of silicate glass, at least one additional sheet of silicate glass, an adhesive composition between them and a protective coating in the form of a film on the surface of the additional sheet facing the protected object (see application Germany No. 2524241, class . C 03 C 27/12, 1977).

Known glass does not provide sufficiently reliable protection for the objects located behind it because of the possibility of destruction of the layers of the glass unit due to relative shear during mechanical shock. In addition, the repair requires the replacement of the entire double-glazed window, which significantly increases operating costs when using such glass.

A multilayer product of structural optics is known, including hardened back, inner and outer silicate plates, adhesive films between them and an end frame in the form of sealant connected to a metal frame, while the back plate is made of toughened silicate glass, the silicate plates are provided with protective coatings at the ends, and in the gap between the edges of the adhesive film and the ends of the back and inner plates there is a tourniquet (see RF patent No. 1336460, class C 03 C 27/12, B 32 B 17/06, 1994 - prototype).

A disadvantage of the known multilayer product is the impossibility of providing the necessary climatic conditions for the objects protected by the product, for example, passengers of railway cars, as well as a low degree of maintainability, since when repairing the product due to shock mechanical impact it is necessary to open the metal frame to remove fragments of the outer plate, which significantly increases repair cost.

The aim of the invention is to provide the necessary climatic conditions for the objects protected by the product and to increase the degree of maintainability of the product.

This goal is achieved by the fact that in the multilayer product for glazing of protected objects, including the rear, outer and inner glass plates framing the frame with sealant, an additional spacer frame with perforation and a recess for the desiccant is contained, the back and inner glass plates being connected via a spacer frame into a single-chamber glass pane while the framing frame is strengthened by means of a sealant to the outer end parts of the rear and inner fiberglass, and the outer fiberglass by means of a sealant attached to the framing frame along its outer perimeter, the inner glass plate made of shockproof polymer glass, on the outer surface of which a layer of ultraviolet protection is applied; the outer fiberglass is made of polished silicate glass; the rear fiberglass plate is made of safety silicate glass, the inner surface of which contains a layer of tinted deposition, while the glass packet chamber is filled with gas, and the ratio of the thickness of the outer fiberglass to the thickness of the inner is 0.7-1.0; The layer of tinted spraying of the rear fiberglass plate is made on the basis of titanium and its composites; argon is used as a gas.

The drawing shows the proposed design of a multilayer product.

A multilayer product contains a rear 1, inner 2 and outer 3 fiberglass plates (SP), as well as a metal frame, for example aluminum, with sealant 5, framing 4. The product contains an additional 6 spacer frame with perforation and a recess for desiccant 7, for example silica gel. The rear 1 and the inner 2 SP by means of a spacer 6 frame made in the form of a stamped aluminum strip-sieve are connected in a single-chamber double-glazed window 8. The framing 4 frame is reinforced with sealant 5 to the outer end parts of the rear 1 and inner 2 SP. The outer 3 joint venture is sealed with 5 sealant to the framing 4 frame along its outer perimeter. The inner 2 SP is made of polymer shockproof glass with a thickness of 4-6 mm, on the outer surface of which is applied a protective 9 layer from ultraviolet rays. As shockproof glass, industrial polymer glass, for example, PET-100, PET-200, polycarbonate, polystyrene, etc. can be used. The outer 3 joint ventures are made of polished silicate glass with a thickness of 4 mm, for example, of the brand Ml. The back 1 joint venture is made of safety silicate glass according to GOST 5727. On the inner surface of the back 1 joint venture, a tinting 10 layer based on titanium and its composites is applied by spraying. The glass pane 8 is filled with an inert gas, for example argon. Filling the glass pane 8 can be done with dry air. The design of the double-glazed window 8 is made in such a way that the ratio of the thickness of the outer 3 SP to the thickness of the inner 2 SP is 0.7-1.0.

When shock mechanical impact on the product with a heavy object, such as a stone, first the external 3, and then the internal 2 SP perceive all the energy of the impact. In this case, the outer 3 SP can be partially or completely destroyed, while the internal 2 SP remains intact. It is easy to replace a partially or completely destroyed external 3 joint venture with a new one without resorting to replacing a double-glazed window with a new one. In addition, during operation, for example, in railway wagons, the outer 3 SP protects the layer of the inner 2 SP from ultraviolet rays from erosion. To create comfortable conditions for the protected objects, for example, passengers, a tinting 10 layer of the back 1 joint venture, a protective 9 layer of the inner 2 joint venture, and inert gas (dry air) located in the glass packet chamber 8 are used.

The technical and economic advantages of the proposed technical solution compared to the known ones consist in a significant increase in the degree of maintainability of the product, especially with mass use, for example, in railway transport, a significant reduction in the cost of repair of the product if it is damaged during operation, and also in ensuring the necessary climatic conditions for the protected objects themselves, such as passengers, at any time of the year. In addition, significantly improved working conditions for maintenance and repair of the product. According to the economic assessment of the authors of the claimed technical solution, the operating costs associated with the repair of the proposed multilayer product, when used on commuter trains, for example, Moscow railway, will be reduced by 10-12 times, and long-distance trains by 26-30 times.

Claims (6)

1. A multilayer product for glazing of protected objects, including the rear, outer and inner fiberglass, framing the frame with sealant, characterized in that it contains an additional spacer frame with perforation and a recess for the desiccant, and the back and inner fiberglass through the spacer frame are connected in a single-chamber glass unit while the framing frame is strengthened by means of a sealant to the outer end parts of the rear and inner fiberglass, and the outer fiberglass by ge the sealant is attached to the framing frame along its outer perimeter, the inner fiberglass plate made of polymer shockproof glass, the outer surface of which is coated with a layer of ultraviolet protection, the outer fiberglass plate is made of polished silicate glass, the rear fiberglass plate is made of safety glass, the inner surface of which is coated with a tinted spray layer while the glass packet chamber is filled with gas, and the ratio of the thickness of the outer fiberglass to the thickness of the inner is but 0.7-1.0. 2. The product according to claim 1, characterized in that silica gel is used as a desiccant. 3. The product according to claim 1, characterized in that the layer of tinting spraying of the rear fiberglass plate is based on titanium and its composites. 4. The product according to claim 1, characterized in that argon is used as the gas. 5. The product according to claim 1, characterized in that the framing frame is made of a polymeric material. 6. The product according to claim 5, characterized in that the framing frame is made of hardening mass.