CN103471179B - Energy-saving heat supply method and energy-saving system for circulating pumps - Google Patents
Energy-saving heat supply method and energy-saving system for circulating pumps Download PDFInfo
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Abstract
The invention discloses an energy-saving heat supply method and an energy-saving system for circulating pumps. The method comprises the steps of calculating the heating demand of a heat supply area according to the average value of the atmospheric temperature and the total area of the heat supply area during preset time, calculating the circulation amount of circulation water needed by the heat supply area according to the heating demand, the efficiency of the circulating pumps, the efficiency of a heat exchange system and the temperature difference of supplied water and returned water, determining the number and the operation time of the circulating pumps during the preset time according to the circulation amount of the circulation water, detecting water loss of a heat supply system during the operation period of the heat supply system, and controlling water supply pumps to supply water according to the water loss. According to the scheme, a heat supply plan can be made, heat can be supplied according to needs, the efficiency of the circulating pumps is improved, the problem of energy waste can be solved to some extent, a heat supply adjustment scheme can be adopted in time according to the temperature change, and heat supply accidents caused by the temperature change can be avoided.
Description
Technical field
The present invention relates to heating energy-saving technology, and in particular to a kind of method of circulating pump energy-saving heating and energy conserving system.
Background technology
Existing heating system adopts circulating pump cyclic high-temperature hot water to carry out heat supply usually.At present, heating industry does not have effective heat metering control program usually, as certain in worked as outdoor temperature, and area of heat-supply service one timing, how controlling heating load, the indoor temperature that could meet heat user reaches 18 degree.And normally rely on the working experience of fireman to operate at present; confession thermal region indoor temperature is not up to standard and exceed standard cannot accurately predict for thermal region indoor temperature; therefore; usually there is the not up to standard and heat supply temperature of heat supply temperature and exceed standard and cause waste two kinds of phenomenons in heating industry; therefore the utilization rate for the energy is relatively low; also can cause energy waste, heating industry often can face loss situation.
When outdoor temperature sharply changes (raise or reduce), pump operating cycle adjustment is delayed, does not adjust in time, heat supply accident also can be caused to occur, as bursting by freezing heating equipment, or cause serious energy waste, as overheated in confession hot-zone, and user windows heat radiation.
After studying prior art, inventor finds, existing heating industry, owing to lacking effective running, supervising each emergent regulating measures, causes heating industry energy utilization rate low, serious waste of resources, and there is the problems such as heat supply is particularly thorny.
Summary of the invention
In view of the problems referred to above and/or the other problems of prior art, the invention provides a kind of method and energy conserving system of circulating pump energy-saving heating.
The invention discloses a kind of method of circulating pump energy-saving heating, it is characterized in that, comprising:
According to the atmospheric temperature mean value for thermal region in the scheduled time, and supply the gross area of thermal region, calculate the heating demand for thermal region;
According to described heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate the internal circulating load for the recirculated water needed for hot-zone;
According to the internal circulating load of described recirculated water, determine number of units and the running time of the required circulating pump run in this scheduled time; And,
At heating system run duration, detect the fluid loss of heating system;
According to described fluid loss, control small pump and carry out moisturizing.
The invention discloses a kind of system of circulating pump heat supply, comprise work station, heat supply area sensor and the network equipment;
The outdoor temperature for thermal region detected and indoor temperature data are sent to work station by the network equipment by this heat supply area sensor;
This work station comprises: steam generator system checkout equipment, controller and computing equipment;
Steam generator system checkout equipment detects heat source temperature and the temperature for backwater, and the information detected is sent to computing equipment;
Controller receives the control command of computing equipment, and the water circulation work of schduling cycle pump according to this, or control the heating work of steam generator system;
Computing equipment according to the atmospheric temperature mean value for thermal region in the scheduled time, and supplies the gross area of thermal region, calculates the heating demand for thermal region; According to described heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate for the quantity of circulating water needed for thermal region; According to described quantity of circulating water, determine that the number of units of the required circulating pump run in this scheduled time and running time also send control command to controller according to this; And according to the atmospheric temperature changing value in the scheduled time, calculate the thermic load for the required adjustment in hot-zone, and determine the operation number of units and the heat source temperature that how to adjust circulating pump further;
This heating system also comprises: rate of water make-up checkout equipment, for when heating system works, detects the fluid loss of heating system;
This computing equipment, also according to fluid loss, calculates the working time of small pump, and sends control instruction to controller, carry out moisturizing to control small pump.
The solution of the present invention can carry out heat supply planning, heating according to need, improves the efficiency of circulating pump, can solution energy waste problem to a certain degree, according to variations in temperature, adopts heat supply Adjusted Option in time, avoids because variations in temperature causes heat supply accident.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the method for circulating pump heat supply of the present invention;
Fig. 2 is the structural representation of user indoor temperature return system and thermic load auto-check system;
Fig. 3 is the structural representation of circulating pump heating system of the present invention.
Detailed description of the invention
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.
The invention provides a kind of scheme of circulating pump energy-saving heating, adopt circulating pump to carry out heat supply, circulating pump is the circulation fluid pump of conveying reaction, absorption, separation, regeneration of absorption solution, generally adopts centrifugal pump of single stage type.Ducted for heating hot water circuit is got up by circulating pump, and the heat of thermal source is sent to for thermal region.
Shown in Figure 1 is the schematic diagram of the method for circulating pump heat supply of the present invention, the scheme of circulating pump heat supply of the present invention is as follows: supply hot zone chamber temperature (atmospheric temperature) changing value according in the scheduled time (as the time), and the required gross area value for hot-zone, calculate the total heat duties for thermal region, according to heat supply total heat duties, circulating pump efficiency, heat-exchange system efficiency and supply backwater temperature difference, calculate a day quantity of circulating water, and determine operation number of units and the day operation time of day circulating pump further, and the circulating pump to heating system is dispatched with the operation number of units of this day circulating pump and running time.In addition, being the heat supply more become more meticulous, also the above-mentioned scheduled time can being carried out meticulousr division, as being divided into 12 periods (every 2 hours being a period), carrying out heat supply planning (thermic load height period) respectively with day and night.
Be described to have particular application as example below: for summerday, the account form of thermic load is as follows: Q=Qmax (tn-t1)/(tn-t2) (GJ/h); The Q thermic load that to be outdoor temperature be under t1; Qmax is heat supply network maximum heating load; T2 is outdoor heating accounting temperature (DEG C), as being-20 DEG C; T1 is Heating Period outdoor temperature (DEG C); Tn is indoor design heating temperature (DEG C), as being 18 DEG C.
As within a scheduled time, the maximum temperature of the air of forecast is 0 degree, minimum-10 degree, then known mean temperature is-5 degree, then supplies hot-zone for following: shopping centre 100,000 m
2, design heating load is 70W/m
2; Residential quarter is 800,000 m
2, design heating load is 50W/m
2; Factory district is 50,000 m
2, design heating load is 70W/m
2, other relevant range 50,000 m
2, design heating load is 90W/m
2.Then can calculate further and hot-zone is supplied for above-mentioned, the thermic load per hour of this circulatory system is 121.1GJ (lucky burnt), whole day thermic load is 2904GJ, for the situation that supply backwater temperature difference is 40 degree, according to day heating heat Calculation formula: Q=cm (tx-ty), i.e. Q=quantity of circulating water × specific heat of water holds × (supply water temperature-return water temperature), wherein, c is that specific heat of water holds, and is 4.2 × 10
3joules per Kg degree Celsius, m is quantity of circulating water, and tx is supply water temperature, and ty is return water temperature.Can calculate a day quantity of circulating water m is thus 17285.71M
3.With an input pump flow 650M
3/ h, the circulating pump thermal efficiency 93% is example, then the circular flow of its reality is 650M
3/ h × 93%=600M
3/ h, can calculate the running time of learning circulating pump every day is thus 28.81h.
For circulating pump day operation 28.81h, can adopt two circulating pumps, every platform runs 14.4h, carries out heat supply to for hot-zone; Or adopt three circulating pumps, every platform runs 9.6h, also can meet heat demand.For the time that circulating pump runs simultaneously, may be selected in temperature lower time, as night.For the running time of circulating pump for 28.8h, then two circulating pumps at least will have the common running time of 5.31h, can select night two circulating pumps jointly run 5.31h.
In addition, when the difference for the mean temperature of hot zone chamber and the mean temperature of forecast is more than a predetermined value, during as ± N DEG C, one or more in following scheme modes of combining can be adopted, the heating load of automatic adjustment circulating heat supply system, to reach the object of heat supply automation adjustment.
The scheme of adjustment heating load comprises: the heat supply amount 1, adjusting circulating pump, and adjustment is for the temperature difference of backwater thus; 2, adjust the internal circulating load of the recirculated water of circulating pump, comprise adjustment circulating pump water circulation flow and adjustment pump operating cycle time (h).The water circulation flow of adjustment circulating pump, comprise adjustment pump operating cycle (platform) number and/or adjustment circulating pump frequency converter hertz number, the frequency converter hertz number of adjustment circulating pump just can make the rotating speed of circulating pump change, and adjusts the water circulation flow of circulating pump thus.
Wherein, adjustment heat supply amount, just can adjust the temperature difference for backwater, the heating load of unit of adjustment's time thus; The circular flow of adjustment circulating pump, just can adjust the internal circulating load of single circulating pump in the unit interval, circular flow is larger, then the heating load of unit interval is also larger.The circular flow of adjustment circulating pump can realize the adjustment to circulating pump by the frequency converter hertz number adjusting circulating pump, as for carrying high-power circulating pump, its frequency converter hertz number is larger, then the internal circulating load of circulating pump also corresponding raising, makes the also corresponding raising of the flow of water circulation.For carrying high-power circulating pump, then can be realized by the operation number of units of adjustment circulating pump, the circulating pump of operation is more, then overall circular flow also can correspondingly be accelerated.As under certain conditions, water circulating speed is needed to bring up to 150%, if the power of the circulating pump of current operation is increasing, then can at increase circulating pump, and the hertz number of two days circulating pumps is adjusted to 75% of current power (flow), can satisfy the demand.
Such as, when the environment temperature outside room have dropped N degree, for avoiding the indoor temperature also corresponding reduction for hot-zone, the mode increasing heat supply amount can be adopted, improve the temperature difference for backwater of recirculated water, can, for providing more heat for hot-zone within the unit interval, the temperature for hot-zone can not be reduced thus.Or, also can establish several circulating pumps newly, strengthen the speed of water circulation, thus also can for providing more heat for hot-zone within the unit interval; Or the global cycle water yield of circulating pump can also be adjusted, such as increase the running time of circulating pump, as the circulating pump of above-mentioned day operation 10h, can 11h or more be increased to.
When the temperature outside room changes, staff or designer can select above-mentioned Adjusted Option as the case may be, to realize obtaining better heating effect, or save coal, or save electric energy.As when atmospheric temperature reduces, if improve heat source temperature and increase pump operating cycle number of units simultaneously, then better heating effect can be obtained.If when atmospheric temperature raises, need to reduce heat supply, then can select to reduce heat source temperature to save coal, or the electric energy that reduction quantity of circulating water expends to save circulating pump.
For temperature situation jumpy, as within the shorter time period, it is very fast that temperature declines, and now needs to provide more heat transfer to for hot-zone at short notice, then can adopt the flow improving heat supply amount or improve circulating pump; Or the flow of heat supply amount and raising circulating pump can also be improved, to realize the heating of prestissimo simultaneously.
For temperature situation jumpy, or the situation that temperature rising decline in 1 hour reaches N DEG C can be set in, just be judged to be that temperature sharply changes.N value can set according to concrete needs, as shopping centre etc., requires higher area, can set N value less to heating, for urban and rural housing district, requires relatively not high area, can set N value larger to heating.Producing this kind of situation and can set corresponding heating early warning scheme, as given the alarm to work station, taking Adjusted Option by work station.For at scheduled time temperature decline N DEG C, can adopt a scheduled time as one hour before, additionally increase heating load.Can adopt and improve heat supply amount in the given time, or increase recirculated water internal circulating load (flow) in the given time, namely within this scheduled time, increase water circulation flow.Or adopt the mode improving heat supply water gaging circular flow and be combined with each other simultaneously.
Concrete account form is: be located at scheduled time temperature decline N DEG C, the computing formula according to thermic load: Q=Qmax (tn-t1)/(tn-t2), wherein t1=N; Calculate in this scheduled time, need the extra thermic load increased.According to the thermic load that this additionally increases, calculate the mode adopting and increase heat supply amount, the required value P improved of heat supply amount; Or adopt and increase the mode that adjustment water follows flow, the value Q of the required adjustment of water circulation flow of circulating pump; Or first heat supply amount is improved S(S<P), then calculate and also need water circulation flow to be adjusted to how many, namely adopt the mode simultaneously improving heat supply amount and water circulation flow.
For the occasion that variations in temperature is relatively slow, then can adopt the mode of the running time increasing circulating pump, if initial planning is pump operating cycle K hour, now because temperature reduces suddenly, K+1 hour need be run (adjustment heating load numerical value is calculated by computing system), then need the many operations of controlled circulation pump one hour.
In addition, for further increasing reliability of heat-supply system, separately at the indoor location temperature sensor for thermal region, and by the network equipment, indoor temperature information can be sent to work station, to confirm whether heat supply Adjusted Option has effect.Usually, for the indoor temperature for hot-zone, require that it reaches 18 DEG C, if the temperature that temperature sensor detects can maintain 18 degree, then illustrate that above-mentioned heat supply Adjusted Option can play a role.
User indoor temperature return system for this case shown in Figure 2 and thermic load auto-check system structure chart, this thermic load auto-check system obtains the indoor temperature information of user by indoor temperature transmitter, indoor temperature information is converted to data-signal and stores in a database.Then by the mode of wireless transmission, the data of indoor temperature information being sent to the computer center of work station, by inquiring about the communication with dispatch instructions of workstation database, determining that whether the heating load of user is too much or not enough.If there is the situation that heating load is too much or not enough, determine by computing equipment such as the cloud computing data processing equipment of work station the heating load how adjusting user, as increased or reducing heating load.
As shown in Figure 2, be such as 16 degree in the indoor temperature of user system one being detected, according to communication with dispatch instructions in database, determine that the design heating load of this user is 55W/m
2can not meet user indoor temperature and reach 18 DEG C, and actual heating load is 56.99W/m
2, then the actual heating load of this user known exceeds 1.99W/m than design heating load
2, then need to improve the heating load to this user; Cloud computing data processing centre is further according to indoor temperature and the actual heating load of reality, and calculating heating load adjustment amount is 4.33GJ, and namely this user needs many heat supplies 4.33GJ.
As shown in Figure 2, be such as 19 degree in the indoor temperature of user system three being detected, the communication with dispatch instructions in data statistics storehouse determines that the design heating load of this user is 55W/m
2, exceed user indoor temperature and reach 18 DEG C of heating loads, its actual heating load is 54.07W/m
2, then the actual heating load of this user known 0.93W/m lower than design heating load
2, then need to reduce the heating load to this user; Computing equipment is further according to indoor temperature and the actual heating load of reality, and calculating heating load adjustment amount is 2.03GJ, and namely this user needs few heat supply 2.03GJ.Heating system is according to the heat supply adjustment amount of each user, and the heating load of heating equipment to user controlling user place adjusts.
From above-mentioned technical scheme, the technical problem that the present invention can solve mainly comprises: 1, carry out heat supply planning, heating according to need, improves the efficiency of circulating pump.By reasonable start-stop circulating pump, can solution energy waste problem to a certain degree.2, according to variations in temperature, adopt heat supply Adjusted Option in time, comprise the flow of circulating pump recirculated water, the pump operating cycle time, the revised planning of circulating pump power consumption etc.Avoid, because variations in temperature causes heat supply accident, when outdoor temperature sharply changes, carrying out redundant computation in advance by work station, adjustment heat supply scheme.Therefore, " on time " that this case adopts and " rationally quantizing " heat supply, achieves " becoming more meticulous " heat supply, compares traditional heating mode pump operating cycle efficiency low, and heat supply accident is frequent, the problem of energy waste, and tool has greatly improved.
In heating system, also there is the problem that the circulation water yield runs off, system, in order to supply the dehydration of circulation, also needs to run small pump and carries out moisturizing.
First, determine fluid loss by staff, as the mode that pinpoint pressure can be adopted to measure, confirm the required water yield of supplementing.Namely the test point setting pressure sensor in circulation, if circulation has dehydration, then can cause this test point pressure to change, determine the fluid loss of circulation according to the change of pressure.Or the fluid loss of the mode determination circulation that flowmeter also can be adopted in this case to measure, does not repeat them here.
Then, adopt small pump carry out moisturizing, small pump running time=the actual refill flow of fluid loss ÷ small pump; Small pump power consumption=moisturizing running time × small pump power, according to small pump running time and small pump power consumption small pump allocated and control.
In addition, if circulation produces the serious problem of dehydration, as fluid loss reaches a predetermined value, then illustrate that circulation may exist water leakage fault.After detecting that the fluid loss of circulation reaches a predetermined value, first can trigger early warning mechanism, give the alarm to work station, investigate fault by work station.After malfunction elimination completes, also need to carry out moisturizing according to fluid loss.For the situation that fluid loss is larger, after carrying out moisturizing, the temperature of recirculated water can be caused to decline, affect heat supply.Therefore, heating system needs to improve heating load, to guarantee that larger variation does not occur the heat user indoor temperature for hot-zone.
Heating computing formula according to providing in such scheme: Q=cm (tx-ty), temperature in circulation declines, after causing supply backwater temperature difference (tx-ty) to increase, the mode increasing heat supply amount can be adopted to reduce the difference for backwater temperature as early as possible, to guarantee for thermal region heat user indoor temperature, or the mode increasing quantity of circulating water m can be adopted, accelerate the water circulation flow of circulating pump, or for guaranteeing that the temperature for thermal region heat user indoor can be recovered as early as possible, the mode increasing heat supply amount simultaneously and accelerate circulating pump water circulation flow can be adopted, so that after a large amount of dehydration of circulation, normal duty can be returned to the fastest speed, staff can confirm to adopt which kind of mode according to dehydration degree, namely the recovery heat supply measure adopted after repairing leakage point: as little in fluid loss, the mode increasing pump flow can be adopted, when fluid loss is very large, adopt the mode of the circulating water flow simultaneously increasing heat supply amount and accelerate circulating pump.
The Organization Chart of heating system of the present invention as shown in Figure 2, comprises heat supply zone sensors 1, the network equipment 2 and work station 3.
Heat supply zone sensors 1 comprises outdoor temperature sensors and for hot zone chamber temperature sensor, wherein, when detecting indoor temperature, is better test point with house diagonal central point distance high 1.2 meters to 1.5 meters, ground.
The network equipment 2 comprises router, data transmission set etc., sends it back work station in time for the data detected by the sensor for hot-zone.Data transmission set can adopt wired or wireless mode, and the data of sensor are sent to work station.
This work station comprises 3: computing equipment 31, database 32, steam generator system checkout equipment 33 and controller 34 etc.
This computing equipment 31 is for heat supply planning, and average atmospheric temperature value according to weather report, and the gross area value supplying hot-zone, calculate the total heat duties for hot-zone, and determine operation number of units and the running time of circulating pump further.And according to the atmospheric temperature changing value in the scheduled time, calculate the thermic load for the required adjustment in hot-zone, and determine the operation number of units and the heat source temperature that how to adjust circulating pump further.
This database 32 for the temperature information storing the atmospheric temperature value of forecast, temperature sensor transmits, and in advance redundant computation go out when temperature sharply changes, the emergency plan that should take.As temperature declined N degree to M degree in 1 hour, raising heat source temperature should be adopted respectively, or increase circulating pump, or increase the pump operating cycle time etc.For when there occurs temperature situation jumpy, can directly from database, dispatch out available heat supply scheme carries out emergency processing.
The information detected, for detecting boiler operation situation, as heat source temperature, for the temperature etc. of backwater, and is sent to computing equipment 31, carries out heat supply planning for computing equipment by this steam generator system checkout equipment 33.
This controller 34 is operation number of units and the running time of the circulating pump calculated according to computing equipment 31, and required heat source temperature, the water circulation work of controlled circulation pump, or the heating work controlling steam generator system.
This heating system also comprises: rate of water make-up checkout equipment, for when heating system works, detects the fluid loss of heating system; This computing equipment, according to fluid loss, calculates the working time of small pump, and sends control instruction to controller 34, to control the work of small pump.
This computing equipment 34, also after small pump carries out moisturizing, according to supply backwater temperature difference, calculates the thermic load for the required adjustment in hot-zone, and determines the operation number of units and the heat source temperature that how to adjust circulating pump further.
The solution of the present invention can carry out heat supply planning, adjustment heat supply design thermic load and the difference running thermic load, and heating according to need, improves the efficiency of circulating pump, can solution energy waste problem to a certain degree.And according to variations in temperature, adopt heat supply Adjusted Option in time, avoid, because variations in temperature causes heat supply accident, when outdoor temperature sharply changes, carrying out redundant computation in advance by work station, adjustment heat supply scheme.Compare traditional heating mode pump operating cycle efficiency low, and heat supply accident is frequent, the problem of energy waste, tool has greatly improved.
The change that those skilled in the art do when should recognize the scope and spirit of the present invention disclosed in the claim do not departed from appended by the present invention and retouching, within the protection domain all belonging to claim of the present invention.
Claims (10)
1. a method for circulating pump energy-saving heating, is characterized in that, comprising:
According to the atmospheric temperature mean value t1 for thermal region in the scheduled time, and supply the gross area of thermal region and the design heating load for thermal region, calculate heating demand Q=Qmax (tn-t1)/(tn-t2) for thermal region; Wherein, tn is indoor design heating temperature, and t2 is outdoor heating accounting temperature, and Qmax is heat supply network maximum heating load;
According to described heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate the internal circulating load for the recirculated water needed for hot-zone;
According to the internal circulating load of described recirculated water, determine number of units and the running time of the required circulating pump run in this scheduled time; And,
At heating system run duration, detect the fluid loss of heating system, and judge to detect that whether fluid loss is more than a predetermined value;
According to described fluid loss, control small pump carry out moisturizing, and described detect that fluid loss exceedes described predetermined value time, according to the change of supply backwater temperature difference, confirm to adopt the mode increasing heat supply amount and/or accelerate circulating pump water circulation amount, to improve the heating load for hot-zone.
2. method according to claim 1, it is characterized in that, after control small pump carries out moisturizing, also according to the change of supply backwater temperature difference, calculate the thermic load for the required adjustment of thermal region, and according to this to adjusting the number of units of circulating pump and running time and/or heat supply amount.
3. method according to claim 1, is characterized in that, according to described fluid loss, calculates operation time limit and the small pump power consumption of small pump, to allocate small pump and to control.
4. method according to claim 1, is characterized in that, adopts the mode of pinpoint pressure detection or flow detection, detects the fluid loss of heating system.
5. method according to claim 1, is characterized in that, if detect, fluid loss is more than a predetermined value, then trigger early warning mechanism and carry out malfunction elimination with prompting.
6. a system for circulating pump energy-saving heating, comprises work station, heat supply area sensor and the network equipment;
The outdoor temperature for thermal region detected and indoor temperature data are sent to work station by the network equipment by this heat supply area sensor;
This work station comprises: steam generator system checkout equipment, controller and computing equipment;
Steam generator system checkout equipment detects heat source temperature and the temperature for backwater, and the information detected is sent to computing equipment;
Controller receives the control command of computing equipment, and the water circulation work of schduling cycle pump according to this, or control the heating work of steam generator system;
Computing equipment is according to the atmospheric temperature mean value t1 for thermal region in the scheduled time, and supply the gross area of thermal region and the design heating load for thermal region, calculate heating demand Q=Qmax (tn-t1)/(tn-t2) for thermal region; Wherein, tn is indoor design heating temperature, and t2 is outdoor heating accounting temperature, and Qmax is heat supply network maximum heating load; According to described heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate for the quantity of circulating water needed for thermal region; According to described quantity of circulating water, determine that the number of units of the required circulating pump run in this scheduled time and running time also send control command to controller according to this; And according to the atmospheric temperature changing value in the scheduled time, calculate the thermic load for the required adjustment in hot-zone, and determine the operation number of units and the heat source temperature that how to adjust circulating pump further;
This heating system also comprises: rate of water make-up checkout equipment, for when heating system works, detects the fluid loss of heating system, and judges to detect that whether fluid loss is more than a predetermined value;
This computing equipment is also according to fluid loss, calculate the working time of small pump, and send control instruction to controller, moisturizing is carried out to control small pump, and described detect that fluid loss exceedes described predetermined value time, according to the change of supply backwater temperature difference, confirm to adopt the mode increasing heat supply amount and/or accelerate circulating pump water circulation amount, to improve the heating load for hot-zone.
7. system according to claim 6, it is characterized in that, this computing equipment is also after small pump carries out moisturizing, according to the change of supply backwater temperature difference, calculate the thermic load for the required adjustment of thermal region, and send control instruction to controller according to this, with to adjusting the number of units of circulating pump and running time and/or heat supply amount.
8. system according to claim 6, is characterized in that, this computing equipment, according to described fluid loss, calculates operation time limit and the small pump power consumption of small pump, to allocate small pump and to control.
9. system according to claim 6, is characterized in that, also comprises pinpoint pressure detector or flow detector, to detect the fluid loss of heating system.
10. system according to claim 6, is characterized in that, this rate of water make-up checkout equipment is detecting that fluid loss is more than a predetermined value, triggers early warning mechanism and carries out malfunction elimination with prompting.
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| CN201310470206.6A CN103471179B (en) | 2013-10-10 | 2013-10-10 | Energy-saving heat supply method and energy-saving system for circulating pumps |
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Effective date of registration: 20200611 Address after: 010010 Jinxiuyuan community, 3.5km away from Beifu Road, airport expressway, Xincheng District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Hohhot Hongkun heat LLC Address before: 010020 Kuntai 1 building, sanliying street, Hohhot City, Inner Mongolia Autonomous Region Patentee before: Zhang Jiuming |
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