SU848870A1

SU848870A1 - Heat insulation

Info

Publication number: SU848870A1
Application number: SU772531459A
Authority: SU
Inventors: Мендель Моисеевич Шапиевский
Original assignee: Производственное Объединение"Красный Котельщик"
Priority date: 1977-10-10
Filing date: 1977-10-10
Publication date: 1981-07-23

Description

, Изобретение относится к технике теплоизолирования при последующем нагреве длинных цилиндрических тел с отводами и может быть использовано, например для теплоизолирования подлежащих термообработке коллекторов в блоках котлоагрегатов.The invention relates to the technique of thermal insulation during subsequent heating of long cylindrical bodies with bends and can be used, for example, for thermal insulation of collectors to be heat treated in blocks of boiler units.

Известна теплоизоляция для пучков труб, состоящая из теплоизоляционных секторов, накладываемых на трубы и закрепляемых на них Г1].Known thermal insulation for bundles of pipes, consisting of heat-insulating sectors superimposed on pipes and fixed on them G1].

Недостаток известной теплоизоляции - трудность ее монтажа и демонтажа.A disadvantage of the known thermal insulation is the difficulty of its installation and dismantling.

Цель изобретения - упрощение монтажа и демонтажа.The purpose of the invention is the simplification of installation and dismantling.

Поставленная цель достигается тем, что теплоизоляция выполнена ввиде многозвенной наборной цепи, к каждому звену которой прикреплен теплоизоляционный сектор, представляющий собой пучок однонаправленных нитей из теплоизоляционного волокнистого материала, перехваченный с одной стороны стяжным элементом.This goal is achieved by the fact that the insulation is made in the form of a multi-link set-up chain, to each link of which a heat-insulating sector is attached, which is a bundle of unidirectional threads from a heat-insulating fibrous material, intercepted on one side by a clamping element.

На фиг. 1 показана конструкция , теплоизоляции·, на фиг. 2 - пример укладки теплоизоляции вокруг труб коллектора.In FIG. 1 shows the construction, thermal insulation ·, in FIG. 2 is an example of laying thermal insulation around collector pipes.

Устройство для теплоизолирования выполнено в виде многозвенной наборной цепи 1, уложенной по спирали на подлежащий.нагреву коллектор 2, с которым стыкуются змеевики 3 блока котлоагрегата; Каждое звено многозвенной ·наборной цепи состоит из жесткого металлического, например проволочного каркаса 4, снабженного с одного конца кольцом 5, с другого - крючком 6, служащие для сочленения с соседними каркасами. В середине каркаса 4 имеется петля 7, к которой при помощи шпильки 8 подвижно крепится теплоизоляционный сектор, выполненный в виде кисти 9, которая представляет собой перехваченный с одной стороны стяжным элементом 10 пучок нитей из теплоизоляционного волокнистого материала, например на основе асбеста или кремнезема.The device for thermal insulation is made in the form of a multi-link stacked circuit 1, laid in a spiral on the collector 2 to be heated. With which coils 3 of the boiler unit are joined; Each link of the multi-link set-up chain consists of a rigid metal, for example, wire frame 4, equipped with a ring 5 at one end, and a hook 6 at the other end, which are used for jointing with adjacent frames. In the middle of the frame 4 there is a loop 7 to which the heat-insulating sector, made in the form of a brush 9, is movably fastened with a pin 8, which is a bundle of threads made of heat-insulating fibrous material intercepted on one side by the clamping element 10, for example, based on asbestos or silica.

Теплоизолирование' коллектора осуществляется следующим образом.Thermal insulation of the collector is as follows.

из отдельных звеньев, образованных каркасами 4 с прикрепленными к ним кистями 9, набирают небольшой участок многозвенной цепи 1. Закрепив один· конец указанного участка цепи к нижней части коллектора 2, производят обматывание наружной поверхности коллектора 2 снизу вверх по спирали, при этом, на поверхность коллектора ложатся жесткие каркасы 4.of the individual links formed by the frames 4 with the brushes 9 attached to them, a small section of the multi-link chain 1 is assembled. After fixing one · end of the indicated section of the chain to the lower part of the collector 2, the outer surface of the collector 2 is wrapped from the bottom upwards in a spiral, while on the surface collector bed rigid frames 4.

В процессе наматывания на коллек- тор цепи производят постепенное на-г ³ращивание последней одиночными 'звеньями или предварительно набранными отдельными участками цепи.During winding on the torus circuit collective produce gradual to ³ g-capacity- last single 'functioning or pre-dialed individual circuit portions.

Шаг намотки спирали многозвенной . цепи на коллектор соответствует шагу змеевиков. Кисти каждой спирали ложатся на кисти предыдущей спирали, * образуя при этом сплошной равномерный кольцевой покров коллектора по всей высоте нитями из волокнистого 15 теплоизоляционного материала.Step winding spiral multilink. circuit to the collector corresponds to the step of the coils. The brushes of each spiral lie on the brushes of the previous spiral, * thus forming a continuous uniform annular cover of the collector over the entire height with threads of fibrous 15 heat-insulating material.

После нагрева и проведения полного цикла термообработки коллектора производят демонтаж многозвенной цепи в обратном порядке, сверху вниз. 20After heating and conducting a full cycle of heat treatment of the collector, the multi-link chain is dismantled in the reverse order, from top to bottom. 20

Выполнение в предлагаемой конструкции теплоизоляционного сектора в виде кисти с удлиненной хвостовой частью из однонаправленных нитей из теплоизоляционного материала позволяет 25 существенно расширить возможности конструкции, доведя ее до полной универсальности, так как достаточно изготовить партию кистей только одного типоразмера и при этом обеспечится теплоизолирование,практически, любого коллектора.The implementation in the proposed design of the heat-insulating sector in the form of a brush with an elongated tail of unidirectional filaments of heat-insulating material allows 25 to significantly expand the design capabilities, bringing it to full versatility, since it is enough to make a batch of brushes of only one standard size and at the same time almost any collector.

Claims

I The invention relates to the technique of thermal insulation during the subsequent heating of long cylindrical bodies with outlets and can be used, for example, to heat insulate the collectors to be heat treated in blocks of boiler units. Thermal insulation for tube bundles is known, which consists of thermal insulation sectors, layered on them on pipes and attached to them Ll. A disadvantage of the known thermal insulation is the difficulty of its installation and demolition. The purpose of the invention is to simplify assembly and disassembly. The goal is achieved by the fact that the thermal insulation is made in the form of a multi-link chained chain, to each link of which a thermal insulation sector is attached, which is a bundle of unidirectional filaments of thermally insulating fibrous material intercepted on one side by a tensioning element. FIG. 1 shows the structure of the thermal insulation) in FIG. 2, an example of laying thermal insulation around the collector pipes. The device for heat insulation is made in the form of a multi-tier chained chain 1, arranged in a spiral on the collector 2 to be heated, with which the coils 3 of the boiler unit are connected; Each link of the multi-link chained chain consists of a rigid metal, for example, a wire frame 4, fitted with a ring 5 at one end, and a hook b at the other end, which are used for articulation with adjacent frames. In the middle of the frame 4 there is a loop 7, to which by means of a pin 8 a heat insulating sector, made in the form of a brush 9, is movably attached, which is a bundle of filaments made of heat insulating fibrous material intercepted on one side of the strut element 10, for example, asbestos or silica. The thermal insulation of the collector is carried out as follows. From the individual links formed by the frames 4 with the brushes 9 attached to them, a small section of the multilinker chain 1 is assembled. Having fixed one end of the specified chain section to the lower part of the collector 2, the outer surface of the collector 2 is wound upwards spiral-wise, on the surface of the reservoir are rigid frames 4 ... In the process of winding onto a chain collector, the latter is gradually expanded by single links or pre-assembled separate sections of the chain. The step of winding the spiral of the multi-link circuit on the collector corresponds to the step of the coils. The brushes of each helix lie on the hand of the previous helix to form a continuous uniform gauge ring cover of the collector along the entire height of the filaments of fibrous heat insulating material. After heating and conducting a full cycle of heat treatment of the collector, the multi-link chain is disassembled in reverse order, from above. The implementation of the thermal insulation sector in the proposed design in the brush with an elongated tail part of unidirectional threads of thermal insulation material significantly expands the design possibilities. it is up to full versatility, since it is enough to make a batch of brushes of only one size and at the same time heat insulation of virtually any collection pa. Thermal insulation, mainly for collectors to be heat-treated in boiler units, consisting of thermal insulation sectors, characterized in that, in order to simplify installation and disassembly, it is equipped with a multi-tier chained chain, each link of which has a heat insulation sector attached in the form of a bundle of; 1 unidirectional filaments of thermally insulating fibrous material intercepted on one side by the tension element. Sources of information taken into account during the examination 1. Centr F.G. Designing thermal insulation of power plants and heat networks. L., 1972, p. 173 fig. 6-68 (prototype).

1

FIG. 2