Water heating system

 

(57) Abstract:

The invention relates to a heating engineer and can be used for heating of residential, industrial and agricultural buildings. Water heating system comprises a generator of heat, expansion tank, supply line, pump, heaters, regulators and valves. According to the invention on the site of the circulation line between the heat generator and the circulation pump is installed, the coolant temperature sensor, electrically connected with the relay unit drive control of the circulation pump and the drain valve, the latter is provided with a socket, the free end of which is immersed in an emergency capacity, below the circulation line, while the drain valve is installed on the circulation line before the circulation pump. The technical result is the elimination of failure of individual components and the system as a whole due to the freezing of the coolant when disconnecting supply thermal energy to the generator of heat at low temperatures. 1 Il.

The invention relates to the field of heating technology and can be in operating systems of water heating is the freezing of the fluid in the absence of thermal energy in the heat generator and low ambient temperatures. The lack of heat in the heat generator may be due to various reasons: lack of fuel or prolonged shutdown of the heat source (gas or electricity), the departure of customers for a long time, etc. This leads to the fact that as a result of water freezing in the pipes and radiators last destroyed by the forces of the increase in volume of the ice. The result is the need to replace damaged heating appliances sections of the heat pipes.

Known heating system, comprising a generator of heat, expansion tank, supply line, the circulation line and heating devices [1] . The disadvantage of this system is the possibility of freezing of the coolant when disconnecting the power supply to the heat generator at low outside temperatures during the winter operating period.

The prototype of the proposed technical solution is a water heating system comprising a generator of heat, expansion tank, supply line, a circulation line, pump, heaters, regulators and valves [2] .

The disadvantage of the prototype is anago heating intensely cold. The cooling fluid to a temperature of frost leads to the destruction of heat, heaters, and other elements of the water heating system filled with water. This is because the technical solution of the prototype is not provided automatically remove coolant from the water heating system by reducing its temperature to the value of the upcoming freeze. The disadvantage of the prototype is also the impossibility of mechanized filling water heating coils, drained in an emergency capacity. This is important because water heating systems, water typically is pre-chemical treatment of ions of calcium and magnesium to prevent carbonate deposits.

The basis of the invention is the task of preventing destruction of individual elements and hot-water heating systems in General, due to the action of the frozen fluid (water) at long off heat to the heat generator during periods of low outdoor temperatures.

The invention consists in that the water heating system comprising a generator th the devices, regulators and valves, in addition contains the coolant temperature sensor, installed at the site of the circulation line between the heat generator and the circulation pump and electrically connected with the relay unit drive control of the circulation pump and the drain valve, the latter is provided with a socket, the free end of which is immersed in an emergency capacity, below the circulation line, while the drain valve is installed on the circulation line before the circulation pump. The drain valve is installed on the circulation line before the circulation pump allows for the automatic removal of the coolant from the water heating system when it is cooled to the set user temperature caused by the supply of thermal energy to the heat generator. When removed from the water heating system coolant drained in the emergency tank for later use in a water heating system after restoring heat to the generator of heat. Filling the water heating system coolant is in the manual mode by circulating nasar CLASS="ptx2">

Attached to the description of the drawing shows a diagram of the water heating system consisting of the heat generator 1, is connected to supply line 2 is connected with the surge tank 3 and the radiator 4. The circulation line 5 connects the heaters 4 and the heat generator 1. On the circulation line 5 is installed circulating pump 6, providing for the circulation of coolant. On the circulation line 5 between the circulation pump 6 and the heat generator 1 is installed, the coolant temperature sensor 7, which is a thermistor, which is connected electrically with a power control relay 8 electromagnetic actuators drain valve 9 and the circulation pump 6. The drain valve 9 is installed on the circulation line 5, before the circulation pump 6 and provided with a pipe 10, the free end of which is immersed in an emergency container 11 mounted below the circulation line 5. Also shown regulators and valves 12.

The system works as follows. In the heat generator 1 is heated coolant, which under the pressure created by the circulation pump 6, the flow line 2 e.g coolant is cooled and sent to the circulation line 5 under the influence of gravitational forces and the circulation pump 6, after which enters the heat generator 1. Compensation increase volume of fluid when heated and air removal from the water heating system through the surge tank 3. When the supply of thermal energy to the heat generator 1, the coolant cools down to the temperature set by the user via the unit control relay 8 and controlled by the coolant temperature sensor 7 installed on the site of the circulation line 5 between the heat generator 1 and the circulation pump 6. After cooling, the coolant is below a prescribed consumer values the electrical resistance of the coolant temperature sensor 7 transmits this current at which the relay unit control 8 includes an electric power of the electromagnetic actuator drain valve 9, which leads to its opening. Simultaneously with the turning on of the electromagnetic actuator drain valve 9 unit control relay 8 turns off the circulation pump 6. As a result the circulation of coolant in the system of water heating is stopped, and the carrier is removed by gravity in an emergency capacity 11. Filling the water heating system coolant sudeste 11 on the pipe 10 is sucked by the circulation pump 6 and supplied to the heat generator 1 with the subsequent movement of the flow line 2, through the heaters 4, the circulation line 5, through the circulation pump 6 in the heat generator 1.

The rationale for the installation of the coolant temperature sensor 7 above. the coolant temperature sensor 7 is installed on the site of the circulation line 5 between the heat generator 1 and the circulation pump 6 because in this part of the water heating system water temperature reaches the lowest values for all operating conditions. This allows for the removal of the coolant from the water heating system in an emergency container 11 prior to its freezing point and the destructive effect of ice on the elements of the water heating system.

You must install the drain valve 8 of the socket 10, the free end of which is immersed in an emergency container 11 below the circulation line 5, due to the fact that in this case there is the possibility of pumping the circulation pump 6 fluid from the emergency tank 11 in a water heating system.

Sources of information

1. Gusev, C. I. , Kovalev, N. I.; Popov , B. N. , Giblets Century A. heating equipment, heating, ventilation and air conditioning. Lenogo home. "Trust", "trust-Press, 1999 , S. 39, Fig. 1.8.

Water heating system, comprising a generator of heat, expansion tank, supply line, a circulation line, pump, heaters, regulators and valves, characterized in that on the site of the circulation line between the heat generator and the circulation pump is additionally installed the coolant temperature sensor, electrically connected with the relay unit drive control of the circulation pump and the drain valve, the latter is provided with a socket, the free end of which is immersed in an emergency capacity, below the circulation line, while the drain valve is installed on the circulation line before the circulation pump.

 

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FIELD: heating.

SUBSTANCE: device has indicator panels which number is equal to time period of indication.

EFFECT: simplified design.

13 cl, 1 dwg

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