CN2738143Y

CN2738143Y - Double-energy saving heating equipment

Info

Publication number: CN2738143Y
Application number: CN 200420098757
Authority: CN
Inventors: 赵光明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-29
Filing date: 2004-10-29
Publication date: 2005-11-02
Anticipated expiration: 2014-10-29

Abstract

The utility model provides the double-energy saving heating equipment, comprising a heat exchange system connected by a heat exchanger, a radiator unit and a circulating pump set through a pipeline closed ring, a water charging system which uses a water tank to charge the water to the heat exchange system through a water charging pump unit, and a programmable control cabinet which controls the normal work of the heat exchange system and the water charging system. The water temperature sensor of the heat exchanger is arranged on a water supply pipe between the heat exchanger and the radiator unit. An electric control valve is arranged on the steam pipeline which supplies the heat to the heat exchanger. The remote pressure meter of the circulating water is arranged on the water outlet end of a circulating pump unit. A water charging remote pressure meter is arranged on the water outlet end of the water charging pump unit. A programmable controller, a frequency converter which is electrically connected with the programmable controller and a touching display screen are arranged in the programmable control cabinet. The programmable controller contains a comparator, a proportional-integral-derivative controller, a digital to analog converter and an analogue-to-digital converter. The double-energy saving heating equipment of the utility model is adopted. Thus, the structure is simpler, the electric energy and the heat energy are economized, and the automation degree is high.

Description

Binodal can heating plant

Technical field

The utility model relates to a kind of heating plant, and a kind of binodal of more specifically saying so can heating plant.

Background technology

Heating plant is the indispensable central heating appliance in unit, biotope of cold district in winter.At present, general central heating appliance, comprise the heat-exchange system that connects into by the pipeline closed loop by heat exchanger, radiator group and circulating pump group, by small pump group and vacuum tank water charging system, control the switch board of above-mentioned two system's operate as normal to the heat-exchange system moisturizing by water tank.This general central heating appliance, its weak point is: 1, complex structure, as the not super upper limit of pressure in order to make recirculated water in the heat exchanger, will regulate by the water supply flow of circulating pump group heat exchanger, for this reason, between the arrival end of circulating pump group and the port of export and be connected to the bypass pipe that has valve, when pressure is excessive, by artificial this valve of suitably opening, by the bypass pipe part recirculated water that suitably refluxes; And for example the port of export in the small pump group is connected to vacuum tank; Complicated structure not only increases production cost, and many consuming electric powers; 2, no temperature-adjusting device, waste heat energy; 3, need manually-operated, the waste of manpower resource.

Summary of the invention

The purpose of this utility model provide a kind of structure simpler, can operate automatically operation, not only saves energy but also save the binodal of heat energy can heating plant.

In order to realize above-mentioned purpose, the binodal energy heating plant that is provided, comprise by heat exchanger, the heat-exchange system that radiator group and circulating pump group connect into by the pipeline closed loop, by water tank by the water charging system of small pump group to the heat-exchange system moisturizing, control the switch board of this two systems operate as normal, its design feature is that heat exchanger water temperature sensor is housed on the supply channel between heat exchanger and the radiator group, on the steam pipework of heat exchanger heat supply, electric control valve is housed, water outlet end in the circulating pump group is equipped with the recirculated water remote pressure gauge, water outlet end in the small pump group is equipped with the moisturizing remote pressure gauge, switch board is a switch board able to programme, Programmable Logic Controller is housed in this switch board able to programme and constitutes frequency converter and the touch display screen that is electrically connected with Programmable Logic Controller, Programmable Logic Controller includes comparator, proportional integral derivative controller, digital to analog converter and analog-digital converter, comparator wherein, proportional integral derivative controller and digital to analog converter constitute electrical connection successively, digital to analog converter and frequency converter, electric control valve constitutes electrical connection, frequency converter is connected with the small pump group with the circulating pump group through logic switching circuit, the input of analog-digital converter and recirculated water remote pressure gauge, the moisturizing remote pressure gauge, heat exchanger water temperature sensor constitutes electrical connection, the output of analog-digital converter is connected with the input interface of comparator, the input interface of comparator includes three groups, is respectively heat exchanger water temperature set-point input interface and heat exchanger water temperature measurement value sensor input interface, circulating water pressure set-point input interface and circulating pump group water outlet end detected pressure value input interface, moisturizing pressure set points input interface and small pump group water outlet end detected pressure value input interface.

The quantity of circulating pump is in parallel three in the above-mentioned circulating pump group.

The quantity of small pump is in parallel two in the above-mentioned small pump group.

Above-mentioned binodal can heating plant saves energy but also save heat energy why not only, be the recirculated water remote pressure gauge to be housed because adopted switch board able to programme and the water outlet end that heat exchanger water temperature sensor reaches in the circulating pump group is housed on the supply channel between heat exchanger and the radiator group, water outlet end in the small pump group is equipped with the moisturizing remote pressure gauge, on the steam pipework of heat exchanger heat supply, electric control valve is housed, so just can realize: 1, utilize the rising of outdoor temperature to change the steam feeding amount that reduces heat exchanger, save heat energy: the water temperature control in the heat exchanger is based on predetermined value, finely tune with the outdoor temperature value, adopt closed loop to regulate, specifically be to be datum mark with 5 ℃ of outdoor temperatures, 1 ℃ of the every rising of outdoor temperature, water temperature in the heat exchanger is reduced 1 ℃ on the basis of predetermined value, by the comparator in the switch board able to programme, proportional integral derivative controller, digital-to-analogue conversion, the opening degree of control electric control valve, the feeding amount of minimizing saturated vapor; 2, heating duration is rationally shortened in regularly heating, realizes the saving of heat energy and the electric energy saving of equipment operation, as just freezing or the early spring, can import different sections running time by touch screen, the concrete beginning and ending time of set device work, regularly heat energy is rationally used in heating; 3, adopt the operating mode of Frequency Converter Control small pump and circulating pump, saved the vacuum tank that is connected on the small pump group port of export and be connected between the arrival end and the port of export of circulating pump group, have the bypass pipe of valve, both saved equipment manufacturing cost, saved electric energy again.

Learn by top narration; adopt the binodal described in the utility model can heating plant, not only simpler, the not only saves energy but also save heat energy, and automaticity height of structure; unmanned; realization did not both produce dash current to electrical network to the soft start of motor, had protected motor again; prolonged the service life of motor; realization is to the soft start of water pump and stop, and can eliminate water hammer effect, avoids the impact to pipe network.

Description of drawings

Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural representation of the described binodal energy of embodiment heating plant;

Fig. 2 is the water temperature control flow chart of the heat exchanger of binodal energy heating plant;

Fig. 3 is the small pump control flow chart of binodal energy heating plant;

Fig. 4 is the circulating pump control flow chart of binodal energy heating plant.

Among the figure: 1 is heat exchanger, 2 is the radiator group, 3 is the circulating pump group, and 4 is water tank, and 5 is the small pump group, 6 is heat exchanger water temperature sensor, 7 is electric control valve, and 8 is the recirculated water remote pressure gauge, and 9 are the moisturizing remote pressure gauge, 10 is switch board able to programme, 11 is Programmable Logic Controller, and 12 is frequency converter, and 13 is touch display screen, 14 is comparator, 15 is proportional integral derivative controller, and 16 is digital to analog converter, and 17 is analog-digital converter, 18 is logic switching circuit, and 19 is outdoor temperature sensor.

The specific embodiment

With reference to accompanying drawing, the described binodal energy of embodiment heating plant, comprise by heat exchanger 1, the heat-exchange system that radiator group 2 and circulating pump group 3 connect into by the pipeline closed loop, the quantity of circulating pump is in parallel three in the circulating pump group 3, by water tank 4 by the water charging system of small pump group 5 to the heat-exchange system moisturizing, the quantity of small pump is in parallel two in the small pump group 5, heat exchanger water temperature sensor 6 is housed on the supply channel between heat exchanger 1 and the radiator group 2, electric control valve 7 is housed on the steam pipework of heat exchanger 1 heat supply, water outlet end in circulating pump group 3 is equipped with recirculated water remote pressure gauge 8, water outlet end in small pump group 5 is equipped with moisturizing remote pressure gauge 9, the switch board of control heat-exchange system and water charging system operate as normal is a switch board 10 able to programme, Programmable Logic Controller 11 is housed in this switch board 10 able to programme and constitutes frequency converter 12 and the touch display screen 13 that is electrically connected with Programmable Logic Controller 11, Programmable Logic Controller 11 includes comparator 14, proportional integral derivative controller 15, digital to analog converter 16 and analog-digital converter 17, wherein comparator 14, proportional integral derivative controller 15 and digital to analog converter 16 constitute electrical connection successively, digital to analog converter 17 and frequency converter 12, electric control valve 7 constitutes electrical connection, frequency converter 12 is connected with small pump group 5 with circulating pump group 3 through logic switching circuit 18, the input of analog-digital converter 17 and recirculated water remote pressure gauge 8, moisturizing remote pressure gauge 9, heat exchanger water temperature sensor 6 constitutes electrical connection, the output of analog-digital converter 17 is connected with the input interface of comparator 14, the input interface of comparator 14 includes three groups, is respectively heat exchanger 1 water temperature set-point input interface and heat exchanger water temperature sensor 6 measured value input interfaces, circulating water pressure set-point input interface and circulating pump group 3 water outlet end detected pressure value input interfaces, moisturizing pressure set points input interface and small pump group 5 water outlet end detected pressure value input interfaces.

In the present embodiment, Programmable Logic Controller 11 adopts Siemens's product, and frequency converter 12 adopts ABB AB's product, and the two is owing to be known technology, and its circuit structure is no longer carefully stated.

Claims

1, a kind of binodal energy heating plant, comprise by heat exchanger (1), the heat-exchange system that radiator group (2) and circulating pump group (3) connect into by the pipeline closed loop, by water tank (4) by the water charging system of small pump group (5) to the heat-exchange system moisturizing, control the switch board of this two systems operate as normal, it is characterized in that on the supply channel between heat exchanger (1) and the radiator group (2), heat exchanger water temperature sensor (6) being housed, electric control valve (7) is housed on the steam pipework of heat exchanger (1) heat supply, water outlet end in circulating pump group (3) is equipped with recirculated water remote pressure gauge (8), water outlet end in small pump group (5) is equipped with moisturizing remote pressure gauge (9), switch board is switch board able to programme (10), Programmable Logic Controller (11) is housed in this switch board able to programme (10) and constitutes frequency converter (12) and the touch display screen (13) that is electrically connected with Programmable Logic Controller (11), Programmable Logic Controller (11) includes comparator (14), proportional integral derivative controller (15), digital to analog converter (16) and analog-digital converter (17), comparator (14) wherein, proportional integral derivative controller (15) and digital to analog converter (16) constitute electrical connection successively, digital to analog converter (17) and frequency converter (12), electric control valve (7) constitutes electrical connection, frequency converter (12) is connected with small pump group (5) with circulating pump group (3) through logic switching circuit (18), the input of analog-digital converter (17) and recirculated water remote pressure gauge (8), moisturizing remote pressure gauge (9), heat exchanger water temperature sensor (6) constitutes electrical connection, the output of analog-digital converter (17) is connected with the input interface of comparator (14), the input interface of comparator (14) includes three groups, is respectively heat exchanger (1) water temperature set-point input interface and heat exchanger water temperature sensor (6) measured value input interface, circulating water pressure set-point input interface and circulating pump group (3) water outlet end detected pressure value input interface, moisturizing pressure set points input interface and small pump group (5) water outlet end detected pressure value input interface.

2, binodal energy heating plant according to claim 1, the quantity that it is characterized in that circulating pump in the circulating pump group (3) is in parallel three.

3, binodal energy heating plant according to claim 1, the quantity that it is characterized in that small pump in the small pump group (5) is in parallel two.