RU183979U1 - DESIGN OF INPUT PIPELINE SYSTEM IN THE BUILDING - Google Patents

Abstract

The utility model relates to the construction, in particular, to the construction of a thermally insulated assembly unit for entering a network pipeline into a building, and is intended to prevent freezing of pipelines passing, in particular, through an unheated ventilated cellar or basement to the building, as well as to prevent violation of permafrost building from the laying of utility networks. Effect: increase of heat-shielding properties and reliability, reduction of labor costs during installation and expansion of the arsenal of technical means aimed at protecting the input nodes of piping systems in buildings operating, including in severe climatic conditions. To achieve a technical result, a design is proposed for introducing a pipeline system into a building containing thermal insulation. New is that it is made in the form of a thermo-waterproofing cassette (1) with a coating. The cassette (1) contains a double-sided seat formed of polypropylene half tubes (2) rigidly connected by an intermediate bridge (3) between the convex walls. Heat-conducting insulated pipes (4) are inserted into the saddle half pipes, and on the outside they are wound with double-sided foil insulation (5), which forms a thermo-waterproofing coating of the cartridge. In this case, the thermo-waterproofing cassette can be made longer with respect to the thickness of the floor slab and can be increased by the height of the ventilated underground. 3 ill.

Description

The utility model relates to the construction, in particular, to the construction of a thermally insulated assembly unit for entering a network pipeline into a building, and is intended to prevent freezing of pipelines passing, in particular, through an unheated, ventilated basement or basement to the building, as well as to avoid violation of permafrost under the building from the laying of utility networks. The utility model can be used in the design, manufacture and installation of new engineering pipeline systems, as well as in the reconstruction of existing heat supply and wastewater systems.

A prerequisite for creating a useful model is large-scale construction, including in regions with severe climatic conditions, as well as accidents - pipe cracks and ruptures that occur, as a rule, in the most vulnerable sections of engineering piping systems, and especially in places pipelines crossing the building envelope. The causes of accidents can be:

a) violation of the schedule of pressure drops at the input of the heating and water supply network into the building (actual pressures are less than required), which, in turn, leads to a decrease in the actual flow rate of the liquid, and, consequently, to a decrease in the speed of movement. At very low speeds, especially at small pipe diameters, and precisely small diameters are used at the entrance to buildings, there are foci of stagnation, stopping fluid movement, which causes ice formation, clogging of the inner diameter and, as a result, termination of circulation, defrosting, violation pipe wall integrity, i.e. gap, accident;

b) lowering the air temperature, while the external air temperatures for which the thermal insulation of the pipelines is designed, in accordance with [SP 131.13330.2012 Construction climatology], can differ greatly from the actual ones, which leads to emergency situations when the thermal insulation does not compensate for the transmission ( due to thermal conductivity) and infiltration (due to convection) the heat flux emitted by the surface of the pipes. On straight pipe sections, even small fluid velocities will save from defrosting, and on pipe inlets into a building where there are many local resistances (turning angles, diameter transitions, shutoff valves, etc.) low speeds can be critical and can lead to abnormalities emergency situations.

The prior art does not know technical solutions that could guarantee the integrity of the pipes at the entrance to the building through the building envelope and at the same time eliminate the violation of permafrost conditions under the building.

A device for sealing inserted into the hole of the construction of communications, made in the form of two outer plates, between which there is a sealing body made of elastic material, having an opening for accommodating communications, while the plates are interconnected by tightening elements, and also located on the outside of the sealing body an additional sealing ring made of a material that increases in volume upon contact with moisture, the sealing body having a recess for placing an additional sealing ring, and the outer edge of the additional sealing ring does not protrude above the outer surface of the sealing body (RF Patent No. 176320 U1, priority date 08/30/2017, publication date 1/17/2018, author: Karoli Rene, RU).

The disadvantage of the analogue is the limited use due to the ineffective thermal insulation of the communications input unit.

The prior art technical solutions regarding the effective thermal insulation of pipelines.

Known heat-insulating module for pipes containing a monolithic heat-insulating shell of a semi-cylindrical shape with a layer of polyurethane foam with a protective cover layer, an inner layer of rigid polyisocyanurate foam and locking elements at the ends, while the inner layer of rigid polyisocyanurate foam is offset along the perimeter and along the length of the shell relative to the outer layer for formation of elements of longitudinal and transverse thermal locking joints of the protrusion-cavity type (RF Patent No. 70958 U1, priority date 04.06.2007, date public tion 20.02.2008, author Kuzmin S.S., RU).

A known construction of a collapsible heat-insulating coating of a pipeline, consisting of composite shells fastened with bandages, as a composite shell, a monolithic modular element with two heat-insulating layers and a protective cover is used, the inner layer of which is facing the pipeline, made of rigid polyisocyanurate foam having a softening temperature 170 ° C, and the outer layer is made of molded polyurethane foam with a mutual displacement of the layers relative to each other, providing Alice thermal elements interlocks type projection-depression around the contour of the modular element (RF Patent №2343340 C1, priority date 04.06.2007, publication date 10.01.2009, author Kuzmin SS, RU).

A heat-insulating structure for pipelines is known, comprising two identical semicylindrical parts made with the possibility of connecting in the longitudinal plane and forming an annular heat-insulating shell, each identical semicylindrical part made of polystyrene foam coated on all sides with a layer of closed-porous rigid polyurethane foam. In addition, the surfaces of two identical semi-cylindrical parts intended for their connection are made with longitudinal and transverse protrusions and grooves having the same geometric dimensions and acting as locks for more reliable connection of the semi-cylindrical parts around the pipeline (RF Patent No. 173464 U1, priority date 18.02. 2016, publication date 08/29/2017, author Polishchuk V.V., RU).

A common disadvantage of the known technical solutions is the complexity of manufacturing heat-insulating composite shells, used mainly for surface pipelines. The use of shells at the intersection of pipes of building structures is impractical due to the peculiarities of the nodes of the pipe into the building.

As a prototype, a well-known device for passage of a pipeline through an enclosing structure is used, comprising a steel sleeve inserted into an opening in the enclosing structure with a fixing flange made at one end and rigidly connected to the enclosing structure, the sleeve enclosing the pipeline with gaps between the enclosing structure and the pipeline, filled with a non-combustible mineral wool packing, the sleeve consists of two half-shells connected by welding, and the fixing flange is formed by a half-flange carried out in one piece with half shells, on the opposite end of the sleeve flange, covering it, there are two steel half caps connected to the sleeve by welding and rigidly connected to the enclosing structure (RF Patent No. 157008 U1, priority date 02.25.2015, publication date 20.11 .2015, authors: Batin S.A. et al., RU, prototype).

The disadvantages of the prototype are: firstly, unreliability when working in low temperature conditions, when installed in regions with permafrost soils, due to ineffective thermal insulation; secondly, high labor costs when dismantling the insulation in case of damage.

The technical problem solved by the utility model is the creation of a thermo-waterproofing structure to enter the pipeline network into the building, which is also used in harsh climatic conditions, which ensures the reliability and safety of pipeline systems and permafrost soil properties.

To solve a technical problem, a design is proposed for introducing a pipeline system into a building containing thermal insulation. New is that it is made in the form of a thermo-waterproofing cassette with a coating. The cassette contains a double-sided saddle formed of polypropylene half tubes rigidly connected by an intermediate bridge between the convex walls. Heat-conducting insulated pipes are inserted into the saddle half pipes, and on the outside they are wound with double-sided foil insulation, forming a thermo-waterproof coating of the cartridge.

According to a utility model, a thermo-waterproofing cassette can be made longer with respect to the thickness of the floor slab and can be increased by the height of the ventilated underground.

The implementation of the utility model allows to obtain the following technical result: increase of heat-shielding properties and reliability, reduction of labor costs during installation and expansion of the arsenal of technical means aimed at protecting the input nodes of piping systems in buildings operated, including in severe climatic conditions.

The figure 1 schematically shows the design of the input pipeline system into the building, General view; figure 2 is the same, a top view; figure 3 presents a General view of the saddle.

The inventive design of the input of the pipeline system into the building is made in the form of a heat-insulating cartridge 1. The basis of the cartridge is a double-sided saddle made of polypropylene half pipes 2, rigidly interconnected by intermediate jumpers 3 between the convex walls by welding. Heat-conducting insulated pipes 4 of the heating network and water supply network are enclosed in half pipes 2 saddles. The diameter of the polypropylene half pipes 2 saddles is determined by the diameter of the embedded network pipes 4, which can also be used pipes made of polypropylene (http://trubamaster.ru/vodoprovodnve/truby-polipropilenovye-gost.html. Viewing date 05/22/2018). The saddle allows you to rigidly fix the network pipe 4 to each other. At the same time, the fastening of the pipes 4 is also ensured by the coating 5, for which a double-sided foil insulation is wound on the saddle with the pipes installed in it (https://goodster.ru/uteplitel-dlya-trub-folgirovannyy/. Viewing date 22.05. 2018). The main advantages of foil materials include excellent thermal insulation properties. The use of the well-known foil insulation tenfold reduces the thickness of the insulation, since the winding of such thermal insulation as a bandage significantly increases the quality of thermal insulation. This is due to the fact that during winding between the layers there is an air gap, which is also a heat insulator. At the same time, the waterproofing of the insulation material itself is significantly increased. The manufacture of the proposed design in the form of a cartridge is possible in stationary conditions, which also improves the quality of insulation. The use of pipes 4 made of polypropylene makes it possible to increase the service life of the input device, to reduce the possibility of damage to pipes during water hammer, freezing, and also during temperature fluctuations. In addition, to better preserve the permafrost properties of the soil, increase the thermal resistance of the heat conduit and enhance its strength characteristics, the thermo-waterproofing cassette can be made longer in relation to the thickness of the floor slab and can be increased by the height of the ventilated underground.

Thus, the proposed utility model can significantly reduce the complexity of mounting the design of the input of the pipeline system into the building due to the possibility of manufacturing in stationary conditions, as well as increase reliability when working in harsh climatic conditions through the use of foil insulation and providing rigid fixation of network pipes.

Given these advantages, the utility model can be used both for scientific pre-project preparation with subsequent design and manufacture, and then for the installation of new engineering systems, and for the reconstruction of existing heat supply and wastewater systems, and, which is especially important, for overhaul of buildings generally.

Claims (2)

1. The design of the input of the pipeline system into the building, containing thermal insulation, characterized in that it is made in the form of a thermo-waterproofing cassette with a coating, the cassette contains a double-sided saddle formed of polypropylene half pipes, rigidly connected by an intermediate bridge between the convex walls, insulated heat-conducting pipes are inserted into the half pipes and on the outside they are wound with double-sided foil insulation, forming a thermo-waterproof coating of the cartridge. 2. The construction according to claim 1, characterized in that the thermo-waterproofing cassette can be made longer in relation to the thickness of the floor slab and can be increased by the height of the ventilated underground.

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