RU2733463C1 - Outdoor wall mounted boiler - Google Patents

Abstract

FIELD: heat exchange.

SUBSTANCE: invention can be used in outdoor boilers. Hot-water boiler of external arrangement contains heat and moisture-proof body (1) with heat exchanger (3) with heat exchanger direct and reverse lines (3), (4), burner (6) device and channels of air supply and smoke removal located in it. Heat and moisture-proof housing (1) is made sound-insulating with a bearing power frame, which allows placing it on the surface of vertical walls of buildings. Channels of air supply and smoke removal are equipped with shutoff valves. Boiler is equipped with unit (9) for automatic replenishment of heat carrier level.

EFFECT: technical result consists in reduction of noise level and in improvement of service automation.

3 cl, 1 dwg

Description

The technical field to which the invention relates

The invention relates to the field of energy, in particular to outdoor boilers, and can be used in decentralized and autonomous heating and hot water supply systems for buildings with different heights and storeys, including for placing boilers on the surfaces of vertical walls and balconies.

State of the art

Known outdoor boiler containing a hydro-insulated housing with a heat exchanger with direct and return lines, a burner device, a base of a chimney, a circulation pump, is additionally equipped with an automatic valve with a permanently open nozzle, and the circulation pump is equipped with a supply and suction branch pipes and located along the return line, and an automatic valve with a permanently open nozzle is installed between the connections of the nozzles on the return line (see patent RU No. 2436018, IPC F24H 1/00, dated 07.06.2010)

The disadvantage of this boiler is the use in natural circulation of only a part of the height of the fire-tube heat exchanger to create natural circulation of the coolant, low reliability, low energy efficiency, large dimensions.

Known outdoor condensing boiler, containing a hydro-insulated housing, inside which a gas burner device is installed, a fire-tube heat exchanger with direct and return lines, a coaxial chimney connected to a chimney, additionally equipped with a condensation heat exchanger and a centrifugal fan, while the coaxial chimney with a condensing heat exchanger is installed behind the fire-tube a heat exchanger at the base of the chimney, and in the upper part of the hydrothermal insulation body, behind the fire-tube heat exchanger, a centrifugal fan is installed with the ability to overcome additional resistance to the movement of flue gases in the coaxial chimney (see patent RU No. 2449225, IPC F24H 1/00, published 04/27/2012) ...

The disadvantages of this design are large dimensions and complexity of maintenance, high cost. The above boiler designs cannot be used for apartment heating and hot water supply in multi-storey buildings or for small-area facilities.

The closest in technical essence and the achieved positive effect and adopted by the author as a prototype is an outdoor hot water boiler containing a heat-hydraulically insulated body with a heat exchanger with direct and return lines, a burner device, a chimney base, a circulation pump, an automatic valve with a permanently open nozzle located in it. , a deaeration expansion tank, a three-way valve, the heat exchanger is additionally equipped with a second straight line, the first line connecting the upper part of the heat exchanger with the deaeration expansion tank, and the second line with the heating system, while an automatic valve with a permanently open nozzle is installed in the second straight line to the supply line of the circulation pump (see patent RU No. 2549921, IPC F24H 1/00, published on 05/10/2015).

The disadvantage of this boiler is the impossibility of using it for apartment heating due to its large size and complex design, the need for periodic maintenance, the ability to install only on a horizontal surface, the presence of a chimney of considerable length.

Disclosure of the essence of the invention

The objective of the present invention is the development of an outdoor boiler for objects of decentralized heating and hot water supply systems, including apartments in apartment buildings, multi-storey buildings (apartment heating), with the possibility of installing it on the surface of the walls of a building with a minimum noise level, automation of maintenance and high energy efficiency.

The technical result is achieved using a wall-mounted condensing or convection low-temperature boiler located in a heat-insulated sound-insulated casing, equipped with an air supply channel with an air shut-off valve, a smoke exhaust system with a shut-off valve, and an automatic coolant feed system.

Brief description of the drawings.

Figure 1 shows a wall-mounted outdoor boiler, general view.

Implementation of the invention

The wall-mounted outdoor boiler consists of a heat-insulated and sound-insulated supporting body 1, inside which there is a condensing or low-temperature convection heat exchanger 2 with supply lines 3 and outlet lines 4 of the heat carrier, fuel supply line 5, atmospheric gas or complete mixing with burner 6, air supply channel for formation combustible mixture equipped with a two-position shut-off valve 7, a channel for the removal of fuel combustion products, equipped with a two-position shut-off valve 8, a unit for automatic coolant feed 9.

Wall-mounted outdoor boiler is operated as follows.

The heat-insulated and sound-proof body 1 is equipped with a supporting frame (not shown in the figure), which allows it to be placed on the surface of vertical walls of buildings. The design is compact and does not take up much space. Low-temperature convection heat exchanger 2 and burner 6 make it possible to efficiently produce thermal energy required to provide the facility with thermal energy for heating systems and hot water preparation. The connection of the boiler and the internal heating and hot water preparation system, including the heating devices of the premises (not shown in the figure), is carried out by means of the supply lines 3 and the outlet lines 4 of the coolant. During the operation of the boiler, it is periodically required to make up the coolant to ensure constant pressure in the circulation circuit of the system. This is provided by the automatic make-up unit 9.

The proposed invention has the following advantages in comparison with the prototype and other known technical solutions:

- installation of a wall-mounted external boiler excludes the possibility of explosions of buildings and apartments, since the object of increased danger is located outside the premises, and the formation of an explosive gas mixture is theoretically and practically impossible;

- small dimensions and load-bearing body of a wall-mounted boiler for external placement allow it to be placed on a vertical wall of a building without changing the overall architectural solution of the building;

- a load-bearing heat-hydraulically insulated and sound-insulated body allows the boiler to be operated in any geographic location of the facility, providing a minimum sound level during boiler operation. In the living quarters of apartments and other objects, the sound level of this boiler corresponds to the "silence" level of the sound background of the location of the object;

- use of the unit for automatic replenishment of the coolant level eliminates the need for manual provision of this parameter;

- the presence of shut-off valves for the air supply and smoke removal channels provides additional energy saving in the modes of automatic regulation of heating parameters and preparation of hot water in the building.

Since the claimed invention differs from the closest analogue in a number of essential features, it meets the “novelty” requirement of patentability.

The claimed invention is based on the well-known laws of the material world, which makes it possible to assert that the invention meets the "industrial applicability" condition.

Since the prior art does not know the implementation of the design of a wall-mounted outdoor boiler with a load-bearing, heat-hydraulically insulated and sound-insulated casing, which allows the boiler to be operated in any geographical location of the object, providing a minimum sound level when the boiler is operating in the living room of apartments and other objects, the sound level of this boiler, corresponding the level of "silence" of the sound background of the location of the object, including placing it on the walls of buildings and providing a high level of energy efficiency due to the shut-off valves of air and smoke channels, it can be concluded that the claimed device meets the patentability condition "inventive step".

Claims (3)

1. An outdoor water-heating boiler containing a heat-insulated casing with a heat exchanger located in it with direct and return lines of the coolant, a burner and air supply and smoke exhaust channels, characterized in that the heat-insulated casing is made soundproof with a load-bearing load frame, allowing it to be placed on the surface of vertical walls of buildings, air supply and smoke exhaust ducts are equipped with shut-off valves, and the boiler is equipped with a unit for automatic replenishment of the coolant level. 2. An outdoor hot water boiler according to claim 1, characterized in that the presence of shut-off valves for the air supply and smoke removal channels provides additional energy saving in the modes of automatic regulation of heating and hot water preparation parameters. 3. An outdoor hot water boiler according to claim 1, characterized in that the use of an automatic replenishment unit for the coolant level eliminates the need for manual regulation of this parameter of continuous operation of heating and hot water supply systems for buildings and structures.

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