RU2345291C1 - Air heating gas module - Google Patents

Abstract

FIELD: heating.

SUBSTANCE: air heating gas module is intended for independent air heating of buildings and structures. The composite box-type housing contains the sequence of air intake unit, heating unit with combined air heater and leveling device being installed at air intake inlet, ventilation unit and boost chamber. The adjoining units are linked with each other by inlet windows made in inter-unit partitions. The automatics system is connected with fuel supply regulator and fan shaft rotation frequency regulator. The safety, functionality and reliability are improved due to the module design of the unit with separate elements and leveling unit being installed behind the air heater.

EFFECT: improvement of safety, functionality and reliability.

2 dwg

Description

The invention relates to air heating heating systems, in particular, using gas air heaters, can be used for autonomous air heating of buildings and structures and for direct heating of fresh air in fresh air systems and in air curtains.

Known variable volume module according to the patent of the Russian Federation for invention No. 2049875, Е04В 1/74, 1995, containing a support block with end panels, a base, a roof and opening side compartments with hinged panels. The module is equipped with an electric heating element, an air distribution device and an air outlet device in the form of a perforated casing with gratings on the side walls. The disadvantage is the presence of an electric heating element, the use of which is problematic when autonomously providing heat and energy to the premises, for example, in an underdeveloped area. In addition, this module is used as a residential building of a certain design and volume, which does not allow its use for heating industrial buildings and structures.

The independent air heater according to the patent of the Russian Federation No. 2233220, B60H 1/00, 2004 contains a two-chamber module, an electric motor with a fan, a supercharger of atmospheric air, a fuel system. The fuel system includes a gas cylinder with a gas metering reducer, a pipeline with a shut-off valve, and a control system. The disadvantage is the placement of the fuel system outside the module, which allows the heater to be used only inside the heated room. The installation of a fuel system with a gas cylinder and a module with means of ignition inside the premises does not allow to provide the necessary degree of safety of the device.

As the closest analogue to the claimed technical solution, the air heating system according to the patent of the Russian Federation for invention No. 2230259, F24D 5/00, 2004 is known. The system comprises an air intake shaft, fans, supply and exhaust ducts, a mixing type heater installed in the supply duct, an automatic flow regulator fuel. The disadvantage is that the design of the air heating system involves its use only inside the building and does not allow it to be installed outside the building as an independent unit for heating various rooms of different sizes and purposes. Thereby, the period of putting the building into operation is lengthened and complicated. Installation of an air heating system with a mixing type air heater inside the heated room does not provide the necessary safety for using this system, which limits the range of use of this system. In addition, a change in temperature in a heated room is carried out only due to a change in fuel consumption, which may not be enough when using the system in industrial buildings. The lack of a leveling device installed behind the heater leads to unstable operation of the system due to possible uneven burning in the heater, which also limits the range of use of this system.

The technical task of the invention is to expand the functionality of the air heating system and increase the safety of its use.

The technical result is achieved by the fact that in a gas-fired modular unit comprising an air intake unit, fans, a mixing type air heater, an equalizing device, an automation system, according to the invention, the unit comprises a box-type assembled housing in which an air intake unit is installed, a heating unit with a mixing type air heater and a leveling device installed at the outlet of the heater, a ventilation unit, a boost chamber. All adjacent blocks are connected to each other by input windows made in interblock partitions, the automation system is connected with a fuel supply regulator and a fan speed regulator.

The expansion of functionality is achieved due to the fact that the gas-fired gas heating unit is made in the form of a prefabricated housing, in which there are separate blocks connected to each other by input windows made in interblock partitions. This layout and design allows you to install and use the unit outside the heated building. The implementation of the automation system associated with the fuel supply regulator and the fan shaft speed controller allows you to adjust the heating temperature by changing the fuel consumption and by changing the volume of heated air, as a result of which it is possible to heat rooms of various volumes and with different degrees of heat loss. The installation of a leveling device at the outlet of the heater ensures uniform distribution of air flow over the cross section of the heater, provides uniform combustion, prevents the ingress of burning gas into the ventilation unit, which increases the safety and reliability of the unit. The separation of the unit’s internal space into functional blocks, the location of a mixing type air heater using natural gas in the room of the heating block, and the possibility of installing the unit outside the area of the heated room significantly reduce the explosion and fire hazard of the structure.

The figure 1 shows the unit gas heating gas modular in plan.

The figure 2 presents a section of the main view of the unit of a gas air-heating modular.

The gas-fired gas heating unit consists of a housing 1, an air intake unit 2, a heating unit 3 made in the form of a heat-insulated housing, a ventilation unit 4, a boost chamber 5, interblock partitions 6, 7, 8, an automation system 9. An input window is made in the interblock partition 6 10, an inlet window 11 is made in the interblock partition 7, an inlet window 12 is made in the interblock partition 8. An outlet window 13 is made in the outer wall of the housing 1, at the location of the boost chamber 5. The air intake unit 2 contains an air duct ornuyu louvre 14. The heating unit 3 is mounted mixing type heater 15, the aligning device 16 in the form grid. The mixing type air heater 15 is connected to the gas inlet 17. The fans 18 are installed in the ventilation unit 4. The modular gas heating unit 1 housing consists of a rigid metal frame mounted on a frame 19 to which wall panels 20 are mounted, roof panels 21, which are three-layer design with an insulating layer. The automation system 9 contains a speed controller for the shafts 18 and is connected to the fuel supply controller 22.

The gas air-heating unit modular works as follows.

Modular air-heating gas unit is mounted near the heated building or structure. Connect the outlet window 13 of the air-heating gas modular unit with a heated room with a duct. The gas inlet pipe 17 is connected to the external gas pipeline. The fans 18, the ignition device of the mixing type air heater 15 are turned on. Atmospheric air enters the air intake unit 2 through the air intake louver grill 14, through the inlet window 10 enters the heating unit 3, where it is heated by the mixing type air heater 15. Under the action of the fans 18, heated air moves, air enters the grate of the leveling device 16, there is a uniform temperature distribution of the air flow at the inlet to the ventilation unit 4. Automation system 9, various temperature conditions for heating the air are set. These modes are ensured by changing the flow rate of gas entering the mixing type air heater 15 by means of the fuel supply regulator 22 and by changing the volume of heated air, which is controlled by changing the rotational speed of the axes of the fans 18. The air heated to the required temperature enters through the inlet windows 11 and 12 into the boost chamber 5, which serves as the collector, and through the outlet window 13 enters the duct connected to the heated room. The ability to regulate the thermal power of a gas-fired modular air-conditioning unit allows you to create optimal temperature conditions in rooms for various purposes, with varying degrees of initial heating and with varying degrees of heat loss, and allows heating both residential and industrial buildings and structures. The connection of all blocks between themselves by the input windows 10, 11, 12 eliminates the use of ducts that require independent thermal protection and reduce the safety of the device. In addition, the connection of the blocks with the input windows ensures the compactness of their placement and the possibility of modular execution of the unit.

Placing the air-heating gas modular unit outside the heated building allows it to be used for autonomous heating of premises of all explosion and fire hazard categories.

Thus, the present invention allows to expand the functionality of an air heating system based on a mixing type air heater and to increase the safety of its use.

Claims (1)

A gas-fired air-heating unit comprising an air intake unit, fans, a mixing type air heater, an equalizing device, an automation system, characterized in that the unit comprises a box-type prefabricated housing in which an air intake unit is installed in series, a heating unit with a mixing type air heater and an equalizing device installed at the outlet of the air heater, ventilation unit with fans, boost chamber, all adjacent units are connected to each other Khodnev windows executed in the interblock partitions, automation system is connected to a fuel supply control and speed controller fan shafts.

Images