RU2175424C2 - Multi-purpose heating boiler - Google Patents

Abstract

FIELD: heat-engineering. SUBSTANCE: boiler has furnace chamber, vertical gas duct, water tanks of heating system and hot water supply system having adjacent heating surfaces, pressure reducing unit whose inlet is connected to water main and expansion tank which is component of pressure reducing unit. Second pressure reducing unit is located between water main and hot water supply tank. Water tank of heating system is provided with vertical row of tubes inside which combustion products pass; boiler is provided with horizontal row of tubes mounted in staggered order; combustion products flow around these tubes; interior of tubes is communicated with heating system tank. EFFECT: enhanced safety, reliability and efficiency due to intensification of heat exchange process. 2 cl, 1 dwg

Description

 The invention relates to heat engineering and can be used in heating boilers and domestic water heaters.

 The closest analogue of the claimed invention is the technical solution according to patent RU 2110017, F 24 D 3/08, 04/27/1998, which contains a combustion chamber, a vertical gas duct, water tanks of a heating system and hot water supply having adjacent heating surfaces, a pressure reducing unit, an inlet which is connected to the main water supply and expansion tank.

 The disadvantage of this technical solution is the low efficiency of heat transfer.

 The objective of the claimed invention is to increase safety, reliability and efficiency by intensifying the heat transfer process.

 The task is achieved in that the boiler contains a combustion chamber, a vertical gas duct, water tanks of the heating system and hot water supply having adjacent heating surfaces, a pressure reducing unit, the input of which is connected to the main water supply, and an expansion tank, which is an integral part of the pressure reducing unit, between the main a second pressure reducing unit is located in the water tank and the hot water supply tank; a vertical row of pipes is installed in the water tank of the heating system, inside which ny combustion products (e.g., gas), wherein the boiler comprises a set staggered horizontal row of tubes, lapped by combustion gases, an inner region which communicates with the heating system tank.

 In this case, the second pressure-reducing unit is made in the form of a storage tank for the hot water supply system, on the body of which there is a valve connected to the main water supply, a lever pivotally connected to it, on which a plug and a float interacting with the valve are fixed, and the heating system circuit may include a pump mounted on the boiler nozzle for the extraction of hot water from the heating system.

 The drawing shows the design of a universal heating boiler.

 The universal heating boiler includes a burner 1, a combustion chamber 2, horizontal pipes 3, vertical pipes 4, a hot water supply tank 5, a heating system tank 6, a pump 7, an expansion tank 8, the first and second pressure reducing units 10, an accumulation tank 11, a valve for supplying cold water 12, a float 13, a lever 14, a rubber plug 15 and a vertical duct 16.

 The boiler operates as follows.

In the tank of the heating system 6 installed vertical pipes 4. Through them pass the products of combustion (for example, gas). From the outside of the pipe, the heating system water is washed. Inside the boiler in the hot water supply tank 5 there is water from 60 to 250 liters, depending on the type of boiler at a temperature of 80-90 ^o C. When the pressure in the main water supply drops to zero, the boiler continues to work, consuming the reserved water. The resumption of water supply does not lead to emergency situations, the heating of water is automatically resumed. When the set temperature is reached, burner 1 of the boiler is automatically turned off, switching to standby mode.

 The water in the tank 6 of the heating system has a higher temperature, because heat is obtained directly from the products of fuel combustion (for example, gas) through the walls of the combustion chamber 2, horizontal 3 and vertical 4 pipes. The water in the hot water tank 5 is heated through the heating surfaces adjacent to the heating system tank 6.

 An expansion tank 8 with a first pressure reducing unit 9 is used to automatically charge the heating system.

 To do this, a valve 12 is installed on the side surface of the housing of the expansion tank 8. The valve communicates with the main cold water supply. Through this valve there is a constant feed of the heating system and hot water supply.

 When water evaporates from the system, the water level in the expansion tank 8 decreases. The float 13 is lowered and with the help of the lever 14, pivotally connected to the tank body, removes the rubber plug 15 from the opening of the valve 12. Water enters the expansion tank 8. As soon as the water level in the tank reaches a predetermined level, the float will rise and with the help of the lever 14 and the rubber plug 15 tightly closes the opening of valve 12. In this way, a constant water level is maintained in the heating system.

 The second pressure reducing unit 10 works in a similar manner.

 The second pressure reducing unit 10 is aligned with the storage tank 11. On the side wall of the storage tank housing, a valve 12 and a lever 14. A valve is a pipe with a tapered truncated tip in communication with the main water supply. The hole in the tip is determined by the flow of hot water and the volume of the storage tank. If the tank is large, then at the same flow rate of hot water, the hole in the valve is selected with a smaller diameter and vice versa. At the same time, the storage tank 11 performs the functions of an expansion tank. In the case of thermal expansion of water during heating in the hot water tank, excess water rises and can be discharged into the atmosphere. For this purpose, there is a branch pipe installed slightly above the level of water accumulation, which is determined by the position of the float 13.

 A rubber plug 15 and a float 13 are rigidly mounted on the lever 14.

 Using the first pressure lowering unit 9, the heating system circuit is continuously fed.

 At the same time, there is no need to increase the dimensions of the expansion tank 9, because the water level in the heating system circuit is maintained using a float 13, a lever 14, and a plug 15 constant.

 In the circuit of the boiler heating system, the heating system tank 6 is directly connected to the expansion tank 8. In this case, if necessary, connect the pump 7 to raise water in multi-storey buildings, it should be installed on the hot water supply at the boiler outlet. This leads to the fact that the pressure in the boiler does not increase, but remains constant. It is determined only by the water pressure in the cold water feed circuit, i.e. the height of the installation of the expansion tank 8.

 Thus, expansion 8 and storage 11 tanks are installed at a level above the point where the hot water tap is installed. They can be installed under the attic and the inputs of the lowering nodes 9.10 are connected to one valve from the main cold water system of the city water supply. In this case, the discharge into the atmosphere can also be carried out through a single water supply.

 With the accumulation of water in the tank, the float rises and, using the lever 14, the rubber plug 15 closes the hole of the valve 12.

 The water level in the storage tank 11 remains constant until the hot water tap is opened. As the consumption of hot water, the hot water supply tank 5 of the boiler is replenished with cold water from the storage tank 11. Until the water supply in the hot water supply tank 5 of the boiler and the storage tank 11 is used, the water pressure will be large and constant. Thus, there is a constant replenishment of the water in the storage tank from the main water supply, the filling time of the tank depends on the diameter of the valve opening 12.

Claims (3)

 1. A universal heating boiler containing a combustion chamber, a vertical gas duct, water tanks of a heating system and hot water supply having adjacent heating surfaces, a pressure reducing unit, the inlet of which is connected to the main water supply, and an expansion tank, characterized in that the expansion tank is an integral part of said first pressure reduction, between the main water supply and the hot water tank there is a second pressure reducing unit, in the water tank of the heating system installed The vertical row of pipes inside which the products of combustion of fuel (for example, gas) pass is provided, while the boiler contains a staggered horizontal row of pipes washed by the products of combustion, the inner area of which communicates with the tank of the heating system.  2. The boiler according to claim 1, characterized in that the second pressure reducing unit is made in the form of a storage tank of a hot water supply system, on the body of which there is a valve connected to the main water supply, a lever articulated with it, on which a plug and a float are mounted, interacting with valve.  3. The boiler according to paragraphs. 1 and 2, characterized in that the heating system circuit contains a pump mounted on the boiler nozzle for the extraction of hot water from the heating system.