SU1218262A1 - Arrangement for regulating heat combustion in heat supply system - Google Patents

Description

one

The invention relates to district heating. Residential, public and industrial buildings.

The purpose of the invention is to improve the accuracy of regulation.

The drawing shows a schematic representation of a device.

The device consists of a supply pipe 1, a return pipe 2, a jumper 3 connecting the supply and return pipe, the displacement pump 4 on the jumper, the heating regulator 5 for heating with the sensor 6 for heating water temperature, the outside air temperature control valve 8 on the supply pipe 1 and control valve 9 on the jumper 3 and the two relays 10 and 11. On the kpa panels 8 and 9 are installed one limit switch 12 and 13 of the open position, which are included in the circuit of the relay coils 10 and 11, and output 1 4 regulators 5 for increasing the heat supply are connected to the valve control circuit 15 on the supply pipe 1 and valve control circuit 16 on the bridge 3, respectively, through the opening 17 and closing 18 contacts of the relay 10, and the output 19 of the regulator 5 to reduce the heat supply is connected to control valve closing circuit 20 on the supply pipe 1 and valve opening control circuit 21 on jumper 3, respectively, through disconnecting 22 and closing 2 contacts of relay 11.

The device works as follows.

When the required (design pressures and water temperatures in the supply heat network are present, valve 9 is fully open, and valve 8 is closed so that at a given outdoor temperature measured by sensor 7, the water temperature is on i heating measured by sensor 6 by adjusting torus 5, was equal to the required value according to the heating schedule for the heating system of the building or building group. The limit switch 13 of valve 9 is closed, the coil of relay 11 is energized and the contacts 22 of relay 11 are closed, and the limit switch 12 of valve 8 is closed is closed, the relay coil is de-energized and contacts 17 of relay 10 are also

182622

are closed. Therefore, the outputs of the controller 5 to increase and decrease the supply of heat are associated only with the circuits 15 and 20 controlling the opening and closing of the valve 8. In view of the fact that

contact 18 of relay 10 and contact 23 of relay 11 are open, then the control circuit of valve 9 does not receive a signal from regulator 5. In this position

10, the heat supply to the heating is controlled by the regulator 5 only by means of the valve 8. When the outside air temperature decreases, the valve 8 opens, and when the outside air temperature is reached, the valve 8 closes, setting the required heating water temperature in both cases.

When the water pressure in the supply heating network decreases, the temperature of the water for heating decreases and the impulse from sensor 6 causes the controller 5 to open valve 8. Even if the valve 8 is completely opened,

25, when the temperature of the heating water reaches the required temperature, then the limit switch 12 is closed in the full open position of the valve 8, the relay coil 10 is turned on

30 under current, the contacts 17 are closed and the contacts 18 of the relay 10 are closed, and the output 14 of the regulator 5 is connected to the circuit 16 of the valve closing control 9. As a result,

35 by the action of the regulator 5, the valve 9 is closed, reducing the water consumption for mixing, which ensures that the heating water temperature rises to the required level. In this position

40, the limit switch 13 of the valve 9 is opened, the relay 11 is de-energized, the contacts 23 are closed and the contacts 22 of the relay 11 are opened, and the regulation of the heat supply to the heating

45 is performed by the regulator 5 already with the help of the valve 9: when the temperature of the outside air decreases, the valve 9 closes, and with the increase of the temperature of the outside air the valve

5Q 9 opens, setting in both cases the desired water temperature for heating.

If the water pressure in the inlet heat network again rises to

55 of the required value or if the demand for heating supply decreases under reduced pressure (the temperature of the outside air increases; I312182624

the valve 9 is opened by the floor of the mixing pump

with the bone, it closes the Sig

the switch 13, the relay 11 is turned on, the heating is due to the closing of its contacts 23 and closing the valve 9 on the jumper. The contacts 22 are in place, thereby allowing the regulator 5 to connect the valve 9 to reconnect the discrete values of the head, choosing KOToifttfi, adjusting the controlled mixing pump with the head in

heating water temperature to three inlet networks. In view of the sequential value. connection to the controller 5 races of the heat flow of the valves 8 and 9 in the process. The proposed device ensures the regulation of the flow of water to

High reliability of heating is maintained practically

buildings, as with a decrease in the pressure at a constant level, it does not

Neither water in the heat supply network requires a special regulator (

the possibility of a flow and its sensor is prevented.

Compiled by A.Kuznetsov Editor S.Lisina Tekhred O.NetseKorrektor T.Kolb

Order 1124/50 Circulation 650 Subscription

VNIIPI USSR State Committee

on inventions ri discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch ShSh Patent, Uzhgorod, Proektna St., 4

Claims (1)

DEVICE FOR REGULATING HEATING FLOW FOR HEATING IN THE HEATING SYSTEM, containing the supply and return pipelines, a jumper connecting the supply and return pipelines to the displacement pump, the heat flow control for heating with sensors for heating water temperature and outdoor temperature, control valves with actuators in the supply piping and in the jumper after the pump, characterized in that, in order to increase the accuracy of regulation, it is equipped with two relays, two limit switches for adjusting the position control valves and a power source, moreover, one relay is connected to a power source through the limit switch of the supply pipe control valve, to which another relay is connected via the control valve limit switch in the jumper, the outputs of the flow controller are connected to the switching contact of the corresponding relays, the disconnecting contacts of which are connected with a control valve actuator in a straight pipe, and I close-? The contact contacts are connected to the control valve actuator in a jumper. P .1218262>