CN201255459Y

CN201255459Y - Weather compensator

Info

Publication number: CN201255459Y
Application number: CNU2007201433405U
Authority: CN
Inventors: 张军
Original assignee: Individual
Current assignee: BEIJING LIONSUM TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2007-04-19
Filing date: 2007-04-19
Publication date: 2009-06-10
Anticipated expiration: 2017-04-19

Abstract

The utility model relates to an energy-saving device - a climate compensator that is applied to a building heat supply system, which comprises a climate compensator main machine, an electric adjusting valve, an outdoor temperature sensor, an indoor temperature sensor, a water supply temperature sensor and a water return temperature sensor. The climate compensator can obtain the best heating comfort and the minimum energy consumption by adjusting the water outlet temperature of a heat exchanger (or a boiler) according to the variation of the climate and the temperature outside the room. The climate compensator overcomes the weaknesses of the prior heat supply system that the water outlet temperature can not be adjusted in proportion, thereby effectively improving the heat supply efficiency of the buildings.

Description

Climate compensator

Technical field

The utility model relates to a kind of energy saver that is used to build the HVAC heating system.

Background technology

China region is extensive, and is populous, and building construction is huge, and dwelling construction is in Rapid development stage.Simultaneously, China's energy scarcity, heating is used can be very huge, and present heating is with putting 10% of national commodity energy wastage in bulk or weight approximately, and the high energy consumption of heating not only causes the consumption of resource, but also becomes a key factor of atmosphere pollution.

Because the insulation and the airtight poor performance of China's building, the heating system thermal efficiency is low, and the pipe network transfer efficiency is low, lacks control and energy-conservation means, generally moves under underload, poor efficiency, and actual heating area on average has only about 40% of capacity of equipment.China's residential housing heating energy consumption is about 3 times of developed country of close weather conditions.Developed country's indoor temperature that guarantees usually is 22 ℃, and China only is 16 ℃, and the heat supply quality of China is very poor, and room temperature is cold and hot irregular, and system thermal efficiency is poor.

The heat consumption of building is all changing constantly because of the influence that is subjected to factors such as outside air temperature, solar radiation, air humidity, wind direction and wind speed.Guarantee under the condition of above-mentioned factors vary, keep indoor temperature constant (as 18 ℃ ± 2 ℃) or satisfy customer requirements, the supply and return water temperature of heating system just should be regulated between whole heating period in the variation according to outdoor weather condition, so that the calorific requirement of the thermal discharge of boiler heat supplying amount, heat dissipation equipment and building is consistent, prevent that the indoor generation room temperature of user from crossing low or too high phenomenon.Can accomplish under the prerequisite that guarantees heating quality, to reach energy-conservation to greatest extent by in time and effectively moving to regulate.The variation of outdoor temperature has determined the size of building calorific requirement also just to determine the height of energy consumption, operational factor must be adjusted all the time with the variation of outdoor temperature, all the time the heating load that guarantees heating plant is consistent with the calorific requirement of building, only in this way could realize energy-conservation to greatest extent.Each heating plant all should go operation by the operation curve of oneself, and this curve is only the optimum operation curve of this heating plant.Climate compensator promptly is the system that the optimum operation curve is provided to heating plant.

The utility model content

Can only static state move and the shortcoming and defect of unsteady flow amount operation dynamically in order to overcome domestic existing heating system, effectively improve the building heat supply efficiency, the utility model provides a kind of device, become static heat supply and be dynamic heat supply, accomplish " divided time heating, heating according to need ", thereby effectively raise heat supply efficiency, reached purpose of energy saving.

The technical solution of the utility model is as follows:

Linkage climate compensator system comprises: climate compensator main frame, electric control valve, outdoor temperature sensor, indoor temperature transmitter, supply water temperature sensor, return water temperature sensor etc.The climate compensator main frame links to each other with outdoor temperature sensor, indoor temperature transmitter, supply water temperature sensor, return water temperature sensor, electric control valve respectively by control circuit.When outdoor climate changes, outdoor temperature sensor reaches the climate compensator main frame with information, adjustment curve according to its inner setting, determine supply water temperature appropriate under the Current Temperatures, with itself and supply water temperature actual temperature of supply water that sensor is surveyed contrast this moment, the output action signal is to actuator in view of the above---electric control valve, and regulate a flow of inlet water and make the secondary water-supply supply water temperature meet the adjustment curve of setting.

In actual motion because the restriction of managed level and pipe network condition, heating load normally calorific requirement 150%～170%, sometimes even reach 200%.Adopt climate compensator at heat supply end, carry out dynamic matter and regulate and realize the weather compensation, avoided because of by rule of thumb with feel to carry out a large amount of energy wastes that system's operation causes; The reduction of supply water temperature simultaneously, pipeline is reduced along the thermodynamic loss of journey, (the hot water pipe net heat loss accounts for total defeated heat 5%～8% usually, reduces 1.2% for 1 ℃ of heat loss of the backwater every reduction of mean temperature tp than design conditions tp=82.5 ℃) reduced invalid energy consumption.It is the energy-conservation requisite measure of heating system that climate compensator is set.

Description of drawings

Fig. 1 is this climate compensator control system schematic diagram;

Fig. 2 is this climate compensator energy-saving analysis figure;

1. climate compensator main frames among the figure, 2. outdoor temperature sensor, 3. indoor temperature transmitter, 4. supply water temperature sensor, 5. return water temperature sensor, 6. electric control valve, 7. thermal source water supply, 8. a thermal source backwater, 9. secondary water-supply, 10. a secondary backwater.

The specific embodiment

As shown in Figure 1, climate compensator main frame (1) by control circuit respectively be installed on the outdoor outdoor temperature transmitter (2) that is used for the outer temperature of measuring chamber, be installed on the indoor indoor temperature transmitter (3) that is used for temperature in the measuring chamber, be installed on the water supply main line be used to measure water supply main line supply water temperature supply water temperature sensor (4), be installed on the backwater main line be used to measure backwater main line return water temperature return water temperature sensor (5) and and the electric T-shaped valve (6) that is used to regulate supply water temperature wait and be connected the composition linked system.

As shown in Figure 2, according to heat unit heat supply historical data for many years, consider of the different requirements of user's different time sections to indoor temperature, through calculating the variation relation curve in climate compensator, preset outdoor temperature and supply water temperature under many different weather conditions, by changing supply water temperature, supply water temperature is changed with outdoor temperature by the curve of setting, thereby satisfy the requirement of the different outdoor temperatures of user, different time sections to room temperature, accomplish divided time heating, heating according to need, reach comfortable, purpose of energy saving.

According to formula: W confession=η * C* (T water outlet-T backwater) * G

Wherein: W supplies: gross heat input; η: pipe network heat radiation and leakage coefficient; C: specific heat of water, KJ/ ℃ of * m3; T water outlet: leaving water temperature: T backwater: return water temperature; G: quantity of circulating water, m3/h;

In the heating phase, because of various conditions change, the variation of weather is not very regular, outdoor temperature transmitter (2) is gathered outdoor temperature in real time, this temperature signal is transferred to climate compensator main frame (1), climate compensator main frame (1) calculates corresponding secondary water supply water temperature this moment by predefined curve (figure two), and this accounting temperature was compared with the secondary water-supply temperature of surveying by supply water temperature sensor (4) at that time.If the actual measurement supply water temperature is higher than accounting temperature, because its cyclostrophic is warm or because of the gain effect of solar energy, gross heat input will correspondingly reduce, send operational order by the climate compensator main frame this moment, reduce to enter a thermal source water supply of heat exchanger (7) thereby flow reduction secondary water-supply (9) temperature by electric T-shaped valve (6) increasing bypass flow, to obtain the energy resource consumption of best heating comfort level and minimum; If the actual measurement supply water temperature is lower than accounting temperature and then sends operational order by climate compensator main frame (1), by electric T-shaped valve (6) reduce bypass flow strengthen enter that thermal source of heat exchanger supplies water (7) thus flow improves secondary water-supply (9) temperature, to guarantee the needs of heating.

The characteristics of this weather compensation arrangement are:

PHILIPS main flow industry control chip is adopted in fully integrated computer control, master cpu climate compensator main frame, and embedded weather-secondary water-supply temperature curve and branch time-division temperature function module;

Divide time-division temperature function module embedded, system default provides four periods, four independent operating curves, to satisfy user's requirement to indoor temperature in the different periods;

Accurately control supply water temperature, go out required heating water temperature according to the outdoor temperature fuzzy operation, and utilization PID control law is real-time and actual temperature of supply water compares, and regulates the motor-driven valve aperture, accurately guarantee the stable water supply temperature, avoid taking place the too high phenomenon of user's room temperature and the consumption that wastes energy;

The curve self-learning function, revise outdoor temperature in real time according to history parameters---supply water temperature curve makes the heating system optimized running;

Many motor-driven valve controls, modularized design, system board carries three motor-operated control valves, can freely increase motor-driven valve quantity by enlargement module;

Can realize independent operating when supporting on-line execute, increase the stability and the operability of system;

Support multiple communication modes: TCP/IP network, RS232/RS485, wireless transmission, telephone wire communication and electric line carrier communication etc.

Claims

1, a kind of climate compensator, this climate compensator is made up of climate compensator main frame, electric control valve, outdoor temperature sensor, indoor temperature transmitter, supply water temperature sensor, return water temperature sensor etc., and it is characterized in that: the climate compensator main frame directly is connected with electric control valve, outdoor temperature sensor, indoor temperature transmitter, supply water temperature sensor, return water temperature sensor.

2, climate compensator according to claim 1 is characterized in that: the climate compensator main frame adopts PHILIPS main flow industry control chip, and embedded weather-secondary water-supply temperature curve and branch time-division temperature function module.