Automated heating station of heating system (variants)

FIELD: heat-power engineering, possible use in heat supply systems with dependent circuit of connection of heating systems in form of automated heating station.

SUBSTANCE: automated heating station of heating and hot water supply system contains feeding pipeline of heating network with flow controller mounted in it, feeding and reversing heating system pipelines, mixing pump, heating controller, inputs of which are connected to temperature indicators in heating system and environment, water-heating device for hot water supply system, installed between feeding and reversing pipelines of heating network, control input of flow controller being connected to control unit output, input of which is connected to outputs of heating system parameter indicators. Frequency transformer is introduced into heating station of heating system, and as mixing pump, pump with possible working frequency adjustment is used. Output of heating controller is connected to input of frequency transformer, output of which is connected to electric outputs of mixing pump. Mixing pump is installed in input-output direction between reverse and direct pipelines of the heating system. A variant of automated heating station of heating and hot water supply system is also described.

EFFECT: lower electric energy costs, increased lifetime of equipment, maintained consistency of heat carrier flow in heating system.

2 cl, 6 dwg

 

The invention relates to a power system and is intended for use in heating systems with dependent circuit connection of heating systems (WITH).

Known automated thermal point (ATP) system of heating and hot water supply, including the supply and return pipelines, which have a flow regulator connected to the electronic heating controller, pump, mixing, filters, sumps, temperature sensors, and a check valve on the bulkhead between the pipelines [1]. The disadvantage of this ATP is poor performance at low disposable pressure on the heat input of the network, reduced reliability associated with elevated thermal overload pump, and the inability to stabilize the flow in the heating system. These shortcomings are partially eliminated by the patent [2], which contains the input line of a heating system with the installed flow regulator, the supply pipe of the heating system, connected with the return pipe of the heating system, the jumper comprising serially connected pump mixer and regulator mixing, managing input connected to the output of the heating controller, the inputs of which are connected to temperature sensors in the heating system and the environment, Vadodara the running hot water systems, included between the supply and return piping of the heating network and the mixing device (Elevator), is included in the supply pipe of the heating system and the United jumper with reverse pipeline.

The disadvantage of this ATP is poor performance at low disposable pressure on input a heating system, low reliability due to emergency modes of operation of the pump mixing in extreme temperature operating modes of ATP. In addition, the disadvantage is the low operational capacity, due to the need to periodically stop the ATU for washing the filter pump mixing.

Increased performance when insufficient disposable pressure on the heat input network and scarce supply, increased service capacity and reliability has ATP patent [3], which is the prototype of the claimed invention. In [3] patented two independent variants of ATP.

One of the variants of ATP [3] contains the input line of a heating system with the installed flow regulator, the supply pipe of the heating system, connected with the return pipe of the heating system, the jumper comprising serially connected pump mixer and regulator mixing, managing input connected to the output of the heating controller, the inputs of which is about connected with temperature sensors in the heating system and the environment, water heater hot water system included between the supply and return piping of the heating network at the same time as the regulator of mixing used three-way valve, the inlet of which is connected to the pump outlet of the mixing, the first output is connected with the feed pipe of the heating system, the second output is connected to the return line of the heating network and the control input of the regulator is connected through a differential pressure sensor respectively with the supply and return piping of the heating system.

Another option ATP contains the input line of a heating system with the installed flow regulator, the supply pipe of the heating system incorporating the Elevator, pump mixing. Thus adulterating the entrance of the Elevator is connected with the return pipe of the heating system through the first check valve and return line of a heating system via a second check valve in reverse in relation to the first non-return valve towards the pump mixing through the filter is connected with the return pipe of the heating system, and through three-way valve is used as a regulator of mixing, connected to the outputs of the first and second check valves, respectively, the first and second outputs of the three-way valve, the control input three-way valve soy is inen with the output of the heating controller, the inputs of which are connected to temperature sensors, and the control input of the regulator is connected to the output of the differential pressure sensor in the supply and return pipe of the heating system.

General shortcomings of the above options the ATU-prototype is a significant energy consumption, because the pump is always at maximum power, short service life due to the adjustment of mixing (outcrosses) mechanically through a three-way valve.

The task of the invention is to reduce energy consumption, increase the service life of the equipment (pump), cheaper set of equipment and installation.

Note that the above flow regulator in ATP can be controlled not only by the level of pressure drop in the heating system, but also on the ambient temperature and the temperature of the heat carrier in the forward and return lines of the heating system. In this connection it is expedient to introduce a generalization, assuming that the flow regulator connected to the controlling input to an output control unit, the input of which receives signals from sensors parameters WITH, for example, from the differential pressure sensor or the heating controller.

We offer the first option ATP contains the input line of a heating system with the installed flow regulator connected managing the progress with the output control node, the supply and return pipe of the heating system, pump, mixing, heating controller, the inputs of which are connected to temperature sensors in the heating system and the environment, water heater hot water system included between the supply and return piping of the heating network and the control input of the flow regulator coupled to the output node of the control, while the entered frequency Converter, pump mixing used the pump with the ability to change the operating frequency, the output of the heating controller connected to the input side of the inverter, and the output of the inverter connected to the electric terminals of the pump mixing, while the input (pump suction) pump attached to the mixing the return line, and the output (discharge pipe) connected to the supply line of the heating system.

Offer the second option ATP contains the input line of a heating system with the installed flow regulator, the supply pipe of the heating system incorporating the Elevator, pump mixing, adulterating the entrance of the Elevator is connected with the return pipe of the heating system through the check valve and is directly connected with the return pipe of the heating network and the control input of the flow regulator coupled to the output node of the control, the stroke of which is connected to the output of the sensor parameters, this introduced the inverter, pump mixing used the pump with the ability to change the operating frequency, the output of the heating controller connected to the input side of the inverter, and the output of the inverter connected to the electric terminals of the pump mixing, while the input (pump suction) pump mixing attached to the return pipe of the heating system, and the output (discharge pipe) connected to shunt the input of the Elevator.

Proposed execution of both the first and second inventive variants ATP with different types of control units and sensors parameters of the heating system in the form of a differential pressure sensor, interfaced with pulse tubes at the inlet and outlet pipes of the heating system, or as an Electromechanical actuator, an input connected to an additional output of the heating controller.

The work of the proposed variants of the ATP is illustrated using figure 1-6.

Figure 1 presents the first declare option ATP, 2 and 3 - different types of its execution.

4 shows a second variant of the ATP, 5 and 6 different kinds of execution of this ATP.

ATP figure 1 contains the feed 1 and back 2 pipes heating network (TC), input 3 and 4 reverse pipelines with flow regulator 5 in the pipeline 1, the pump shift the value 6, the heating controller 7, the inputs of which are connected to temperature sensors in the FR - 8, location - 9 and in the environment - temperature sensor, outdoor air 10. The control unit 11 input coupled to the outputs of the sensor parameters, and output to the input of the regulator 5. The inverter 13 is connected to the input output heating controller 7, and the output is with the electrical terminals of the pump mixing 6. Input (pump suction) pump mixing 6 is connected to the return line, and its output (discharge pipe) connected to the supply pipe. Water heater hot water system (DHW) 14 typical way between inlet 1 and back 2 pipes heating system.

In addition, figures 1 and further contain symbols fittings and equipment that do not affect the description of the operation of the ATU in this application (valves used in the repair of ATP and in an open state when the ATP, CR - regulating valve DHW).

Figure 2 presents the ATU on the structure in figure 1, using as the control unit 11 of the differential pressure sensor, interfaced with pulse-tube 12, is included in the input 3 and 4 reverse the pipeline. Pulse tubes in this case are the sensors of the parameters (see figure 1).

Figure 3 in the ATP of figure 1 using the IAOD as a control node Electromechanical actuator, coupled input with additional output heating controller 7, the mating with the temperature sensors 8, 9, 10. The signals on the secondary output of the controller 7 are formed using the above-mentioned sensors 8, 9, 10, which together with the regulator 7 is equivalent in this case the parameter sensors WITH 12.

Option ATP figure 4 contains the feed 1 and 2-reverse the pipelines of a heating system installed in the delivery pipe 1 flow regulator 5, input 3 and 4 reverse the piping of the heating system, pump mixing 6, the heating controller 7, the temperature sensors WITH 8, room temperature 9, the outside air temperature is 10, the control unit 11, a parameter sensors 12, the inverter 13. The outputs of the temperature sensors 8-10 connected to the input of the heating controller 7, the output of which is connected to the input of the inverter 13 connected to the control electrode of the pump mixing 6. The flow regulator 5 is connected to the input output control unit 11, an input connected to the output of the sensors 12. In the supply pipe 3 on the Elevator with 15 input 16 output 17. Pump mixing 6 in the direction of the input-output between the upstream pipeline WITH 4 and adulterating the entrance 18 of the Elevator 15.

Figure 5 presents the ATU on the structure of figure 4 with the use of the control unit 11 of the sensor re the hell pressure, mating with pulse-tube 12, is enabled on the output lines WITH 3 and 4.

Figure 6 shows the use of the variant patterns ATP in figure 4 as a control node of the Electromechanical actuator 11 connected to the additional output heating controller 7, the mating input from temperature sensors 8, 9, 10, through the heating controller. An additional output in conjunction with the controller 7 is equivalent to the sensors 12 WITH parameters.

ATP figure 1 works as follows.

The temperature change of the coolant entering FROM happening by changing the pump capacity of the mixture 6, which is provided by changing the frequency of the voltage supplied to the electrical terminals of the pump (the conclusions of the windings of the pump motor). Thus there is a need for a change in outcrosses of the coolant returning from FROM.

By increasing the ambient temperature to the desired reduction temperature of the coolant in WITH is as follows. Upon receipt of the appropriate signal from the heating controller 7 that receives incoming signals from the sensors 8, 9, 10, the rotational speed of the pump motor 6, that is, the value of outcrosses in the supply pipe 3 TC increases, the temperature in the feed line 3 is reduced.

With the increase of outcrosses and, respectively, R is vanishing coolant FROM the sensors 12 WITH parameters given through the heating controller to the input of the control unit 11 of the signal, as a result of which the output control unit 11, a signal occurs, covering the flow regulator 5. When using the pulse tubes as parameter sensors 12 (see figure 2) there is an increase in the differential pressure in the input 3 and 4 reverse pipelines. Thus the differential pressure sensor 11 changes the position of the controller 5, which leads to the reduction of the flow area of the valve controller 5 and thereby reduces the flow from the feed pipe 1. The coolant flow in the CO returns to the previous one (specified) value. Thus, the temperature decreases due to the change of the dilution factor of the coolant from direct 3 and 4 reverse pipelines.

When reducing the ambient temperature to the desired temperature increase occurs in the same way.

The work of the heater 14, which is enabled by a one-stage scheme, follows a standard pattern. The temperature of the coolant entering the DHW system, is regulated by changing the flow rate of the coolant in the primary circuit of the heater.

In ATP figure 3 is used to adjust the flow regulator 5 Electromechanical actuator, which is a signal from the secondary output heating controller 7, which is formed in the slider based on the evidence Yes the Chikov temperature 8, 9 and 10. Thus, in this circuit as a parameter sensors 12 used WITH temperature sensors 8-10 in conjunction with the measuring elements of the controller 7, affecting Electromechanical actuator 11.

Independent option ATP presented on figure 4, operates as optimal for the adjustment method.

Use to adjust the outcrosses pump mixing 6 with variable frequency allows to exclude mechanical method such adjustment using the three-way valve, as it is in the ATP-prototype, which significantly increases the reliability and lifetime of ATP. In addition, optimization of the operating speed of the pump 6 saves energy.

Independent option ATP presented in figure 4, is as follows.

In this scheme, the Elevator 15 is a backup pump. The temperature change of the coolant entering FROM happening by changing the operating speed of the pump mixing 6 changing, as in the diagrams of figure 1 ATP-3, the magnitude of outcrosses of the coolant returning from the applicants to shunt the input 18 of the Elevator 15. The check valve 19 includes traditionally and prevents operation of the pump on a small path.

By increasing the ambient temperature to the desired reduction temperature of the coolant occurs in SL is blowing.

Upon receipt of the appropriate signal from the heating controller 7 that receives incoming signals from the temperature sensors 8-10, increases the output frequency of the frequency Converter 13, and accordingly the frequency of operation of the pump 6. Through shunt input 18 of the Elevator 15 and then through its output 17 in the supply pipe 3 comes WITH more frequently mix coolant, reducing the temperature. The coolant flow is regulated by the controller 5 on the basis of parameter sensors 12, influencing the control unit 11. For example, increasing the flow of coolant in there is an increase in pressure difference in the input 3 and 4 reverse the pipeline WITH fixed heat pipes 12 (see figure 5). Thus the differential pressure sensor 11 changes the position of the flow regulator 5, which leads to the reduction of the flow area of the valve controller 5 and thereby reduces the flow from the feed pipe 1. The coolant flow in the CO returns to the set value. Thus, the temperature decreases WITH.

When reducing the ambient temperature, the process is reversed.

In ATP figure 6 additional output of the controller 7 performs, as in the diagram in figure 3, the function of the sensors output parameters. When the controller 7 also forms, processing sensor data 8-10 control signals, with the help of which the operation of the actuator 11 is optimal for controlling the flow regulator 5.

Unlike ATP, are presented in figures 1-3, option ATP figs.4-6 thanks to the use of the Elevator keeps working when the power supply is switched off, causing the stop of the shunt pump 12. The Elevator operates in a normal mode, that is, retains the possibility of minimal regulation due to the constant coefficient of outcrosses of the Elevator 15. At the same time as for ATP figure 1-3, is the power savings due to optimization of the operating speed of the pump 6 and increase service life and reliability by eliminating mechanical regulator in the form of three-way valve.

Optimal regulation of coolant flow through the flow regulator 5 produced due to the formation of the required control signals for extra output heating controller 7, allows to maintain a constant coolant flow rate while maintaining the desired temperature.

Experimental samples based on the schema presented in figure 1-6, we obtained the following results: specimens efficiency while reducing disposable pressure at the inlet of the TS down to zero.

ATP figs.4-6 retain minimum of adjustment and lower pairs of the emergency coolant to the level of operational safety while saving energy.

Sources taken into account

1. Utility model RF 19140, IPC 7: F24D 19/10 from 20.02.2001,

2. RF patent 2031316, IPC 7: F24 19/10 from 25.11.1991,

3. RF patent 2232351, IPC 7: F24D 3/08; F24D 19/10; Appl. 16.09.2002, publ. 10.07.2004.

Refer to figure 1

1 - supply pipe thermal network

2 - the return pipe of the heat network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 - site management

12 pulse tube

13 - frequency Converter

14 - water heater hot water systems

Refer to figure 2

1 - supply pipe thermal network

2 - the return pipe of the heat network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 is a control node of the differential pressure sensor

12 pulse tube sensors parameters of the heating system

13 - frequency Converter

14 - waters of the heater hot water systems

Refer to figure 3

1 - supply pipe thermal network

2 - the return pipe of the heat network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 - site management - Electromechanical actuator

12 pulse tube

13 - frequency Converter

14 - water heater hot water systems

Refer to figure 4

1 - supply pipe thermal network

2 - the return pipe of the heat network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 - site management

12 - parameter sensors

13 - frequency Converter

14 - water heater hot water systems

15 - Elevator

16 - input Elevator

17 - out of the Elevator

18 - adulterating the entrance of the Elevator

Refer to figure 5

1 - supply pipe thermal network

2 - return true is approved thermal network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 is a control node of the differential pressure sensor

12 - parameter sensors

13 - frequency Converter

14 - water heater hot water systems

15 - Elevator

16 - input Elevator

17 - out of the Elevator

18 - adulterating the entrance of the Elevator

Refer to Fig.6

1 - supply pipe thermal network

2 - the return pipe of the heat network

3 - supply pipe heating system

4 - the return pipe of the heating system

5 is a flow regulator

6 - pump mixing

7 - heating controller

8 - temperature sensor in the heating system

9 - temperature sensor in the room

10 - temperature sensor, outdoor air

11 - site management - Electromechanical actuator

12 - parameter sensors

13 - frequency Converter

14 - water heater hot water systems

15 - Elevator

16 - input Elevator

17 - out of the Elevator

18 - adulterating the entrance of the Elevator

1. Automated calorific point heating system and hot th water contains the input line of a heating system with the installed flow regulator, flow and return pipe of the heating system, pump, mixing, heating controller, the inputs of which are connected to temperature sensors in the heating system and the environment, water heater hot water system included between the supply and return piping of the heating network and the control input of the flow regulator coupled to the output node, the input connected to the outputs of the sensors of the parameters of the heating system, characterized in that the input of the frequency Converter and pump mixing used the pump with the ability to change the operating frequency, while the output of the heating controller connected to the input of the inverter, the output of which is connected to the electrical terminals of the pump mixing the pump mixing is enabled in the direction of the input-output between the upstream and downstream pipes of the heating system.

2. The device according to claim 1, characterized in that the control unit is used, the differential pressure sensor in the supply and return lines of the heating system, and the sensor parameters of the heating system used pulse tube included on the outputs of the supply and return piping of the heating system.

3. The device according to claim 1, Otley is aldeasa fact, as a control node used Electromechanical actuator, an input connected to an additional output of the heating controller.

4. Automated calorific point heating system that contains the input line of a heating system with the installed flow regulator, the supply pipe of the heating system incorporating the Elevator, pump mixing, thus adulterating the entrance of the Elevator is connected with the return pipe of the heating system through the check valve and is directly connected with the return pipe of the heating network and the control input of the flow regulator coupled to the output node, the input connected to the output of the sensor parameters of the heating system, characterized in that the input of the frequency Converter and pump mixing used the pump with the ability to change the operating frequency, while the output of the controller heating is connected to the input of the inverter, the output of which is connected to the electrical terminals of the pump mixing the pump mixing is enabled in the direction of the input-output between the return pipe of the heating system and adulterating the entrance of the Elevator.

5. The device according to claim 4, characterized in that the control unit and sensor parameters of the heating system used, the differential pressure sensor, the implementation is built on impulse tubing, included in the supply and return pipe of the heating system.

6. The device according to claim 4, characterized in that the control unit used Electromechanical actuator connected to the input of the additional output heating controller.



 

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