RU59218U1 - WATER BOILER - Google Patents

Abstract

Utility Model Object: Water Boiler. Scope: heating equipment and can be used for heating residential and other premises, as well as for hot water supply. The essence of the utility model: A boiler containing a housing, a combustion chamber and a convection chamber located above it, communicating with the chambers, a flue formed by the front and side walls of the housing, a chimney located in the lower part of the convection chamber, while the combustion chamber has a burner device, characterized in that the water tank is connected to the rear and side walls of the water jacket and has an upper surface located horizontally. Technical result: Reduction of material costs and simplification of manufacturing technology and operation.

Description

The utility model relates to heating equipment and can be used for heating residential and other premises, as well as for hot water supply.

Known water-heating device (heating apparatus), comprising a housing made in the form of a welded metal structure of a rectangular shape, a combustion chamber, a water jacket, which is equipped with pipes for supplying cold and hot water, a working chimney, and also a flue connected to it formed by a guide wall, wherein the combustion chamber has a burner device (see Patent of the Russian Federation No. 2187766, IPC F 24 H 1/24, publ. 06/26/2000).

The disadvantage of this device is the low efficiency due to the fact that heat transfer goes from the combustion products to a small heat exchange surface, and a significant part of the heat goes through a chimney with flue gases.

Closest to the claimed solution is a water boiler containing a housing, a furnace and convection chambers, a water jacket, which is equipped with nozzles for supplying cold and removing hot water, working and starting chimneys, as well as communicating with them

a gas duct formed by a guide wall, a water reservoir connected to a water jacket (Patent of the Russian Federation for utility model No. 49958 publ. 10.12.2005 bul. No. 34). The disadvantage of this boiler is that the technology of manufacture and operation, the design of the boiler is difficult to manufacture and does not allow full use of the space of the convection chamber.

The utility model is based on the task of improving the boiler by simplifying its design, using structural elements to increase the heat transfer area in the convection chamber.

The problem is solved in that in a boiler containing a housing, a combustion chamber and a convection chamber connected to it through a gas duct, a water jacket, which is equipped with pipes for supplying cold and hot water, a chimney located in the lower part of the convection chamber, as well as communicating with it a gas duct formed by the vertical walls of a water jacket and a water tank located between the burner and convection chambers, while the combustion chamber has a burner device, in accordance with the useful mode The spruce water tank is connected to the back and side walls of the water jacket and has a top surface that is horizontal.

In addition, the convection chamber has water tubes arranged in a zigzag fashion.

In addition, it combines working and starting chimneys.

The above changes create the optimal path for the passage of air, gas and combustion products through the combustion chamber, gas duct, convection chamber and chimney, while ensuring almost complete heat transfer from the combustion products to the coolant.

The greatest efficiency of heat transfer from combustion products and from the fuel combustion center is achieved provided that the heat exchange

elements in the high temperature zone. This zone is located in the combustion chamber above the burner. It contains the lower surface of the water reservoir. Through this surface there is an intense heat transfer from the fuel combustion source to the coolant.

Due to the presence in the boiler of a convection chamber located above the combustion chamber, a significant volume is formed for the circulation of combustion products, and also due to the fact that the output of combustion products is in the lower part of the convection chamber, combustion products with a higher temperature will be in the upper part due to that their density is low. However, giving up heat, they will fall down, displaced by hotter combustion products from the combustion chamber. Therefore, in the region of the ceiling of the convention chamber, another zone of high temperatures is formed. Replacing flat water cavities in a convection chamber with zigzag-mounted water pipes can significantly increase the heat transfer area, which very effectively improves heat transfer. A significant volume of the convection chamber provides an increase in the period of rotation of the combustion products, and hence an increase in the heat exchange time.

Thus, the combustion products, rising from the combustion chamber along the gas duct, rush up to the combustion part of the convection chamber, and then, constantly cooling, transferring heat from the heat carrier through the surfaces of this chamber and increasing density, they will go down to the chimney, forced out by the hotter ones from the combustion chamber .

The coolant, coming from the heating system, through the water pipe into the lower part of the water jacket, gradually heating up and lowering its density in the tank in the vertical and ceiling cavities of the convection chamber water pipes, rises up to the outlet pipe and goes into the heating system. In this case, the oncoming movement of the combustion products from above in the convection chamber and

from the bottom up allows you to reduce the temperature of the products at the outlet of the boiler almost to the temperature of the coolants at the inlet of the boiler.

The proposed design of the boiler allows to reduce the dimensions and metal consumption of the boiler, to improve manufacturability, leaving high rates of efficiency.

The essence of the proposed utility model is illustrated in the drawings, where Fig. 1 shows a general view of a boiler, Fig. 2 is a view A-A of Fig. 3, and Fig. 3 is a view B-B of Fig. 2.

The hot water boiler contains a housing 1, a combustion chamber 2, a convection chamber 3 located above the combustion chamber 2, a burner 4 located in the combustion chamber 2, the convection chamber 3 has a ceiling 5, vertical side 6, 7 front 8 and rear 9 walls , a water jacket 10 formed by the walls of the housing 1, the walls of the combustion chamber 2, the walls of the convection chamber 3 and the chimney 18, a cold water supply pipe 11 located in the lower part of the housing 1, and a hot water pipe 12 located in the upper part of the housing 1, this nozzles provide the connection of the boiler to the heating system, a water tank 13, providing an increase in the heat exchange area and installed between the combustion chamber 2 and the convection chamber 3, and the convection chamber 3 is connected by means of the duct 14 to the combustion chamber 2, and the duct 14 is formed by the front wall 8 of the convection chamber 3 and the front wall of the tank 13, while the gas duct 14 is connected through a convection chamber 3 to a chimney 16 located in the lower part of the convection chamber 3, above the tank 13, water pipes 15, ra laid in the convection chamber 3, providing heat exchange, and which are connected to the water jacket 10, shutters 17, providing the opening and closing of the chimney 16, the bottom 18, forming the lower part of the water jacket and providing air flow into the burner device 4, door 19, located in the upper boiler parts and

providing access to the elements of the convection chamber when cleaning them from ash and soot.

The hot water boiler works this way. Fuel is supplied by means of a burner 4 to the combustion chamber 2 and ignited. In this case, the shutter 17 is previously opened. Under the burner device 4, a high temperature zone is formed, under the influence of which the heat carrier coming from the heating system through the pipe 11 is heated in the tank 13 at the bottom. The heat carrier density decreases and it rises to the top of the water jacket 10. The combustion products, partially lost heat, but still hot enough through the flue 14 rush to the upper part of the convection chamber, where another zone of high temperatures is formed. Further, gradually giving off heat through the heat exchange surfaces of the ceiling 5 and vertical 6, 7, 9 walls and zigzag pipes of the convection chamber 3 and increasing the density, the combustion products descend, displaced by the hot combustion products coming from the combustion chamber 2, and exit into the chimney 16 .

The coolant, gradually warming up and correspondingly losing its density, rises to the upper part of the boiler through water pipes 15, a water jacket 10 and through the outlet pipe 12 enters the heating system.

The burner is provided with automatic adjustment of operating modes.

Thus, the proposed design of the hot water boiler allows for efficient heat transfer in the heat exchange elements due to the use of zigzag-mounted water pipes providing the largest heat transfer surface, and changing the path of the combustion products improved their circulation in the convection chamber and simplified the design of the boiler, which simplified the design of the boiler

manufacturing and operating technology and material costs in production.

Claims (3)

1. A water boiler containing a housing, a combustion chamber and a convection chamber connected to it through a gas duct, a water jacket that is equipped with nozzles for supplying cold and hot water, a chimney located in the lower part of the convection chamber, and a duct connected with it formed by vertical walls a water jacket and a water tank located between the burner and convection chambers, while the combustion chamber has a burner device, characterized in that the water tank is connected to the rear and side mi walls of a water jacket and has an upper surface located horizontally. 2. The boiler according to claim 1, characterized in that the convection chamber has water pipes arranged in a zigzag manner. 3. The boiler according to claim 1, characterized in that it combines the working and starting chimneys.