CN103471177B - The method and system of circulating pump heat supply - Google Patents
The method and system of circulating pump heat supply Download PDFInfo
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- CN103471177B CN103471177B CN201310469846.5A CN201310469846A CN103471177B CN 103471177 B CN103471177 B CN 103471177B CN 201310469846 A CN201310469846 A CN 201310469846A CN 103471177 B CN103471177 B CN 103471177B
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- 230000004087 circulation Effects 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
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- 230000008859 change Effects 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000013461 design Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
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- 230000033228 biological regulation Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- 230000008929 regeneration Effects 0.000 description 1
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Abstract
The invention discloses a kind of method and system of circulating pump heat supply, in order to realize that the maximum energy-saving of heating cycle pump operation, the method include：According to the atmospheric temperature meansigma methodss of the confession hot-zone in a scheduled time, and the gross area for thermal region, calculate the heating demand for thermal region；According to the 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 hot-zone；According to the quantity of circulating water, the number of units and run time of the circulating pump of operation needed for determining in the scheduled time.The solution of the present invention can carry out heat supply planning, and heating according to need improves the efficiency of circulating pump, a certain degree of can solve the problems, such as energy waste, according to temperature change, adopt heat supply Adjusted Option in time, it is to avoid because temperature change causes heat supply accident.
Description
Technical field
The present invention relates to heat supply process, and more particularly to a kind of method and system of circulating pump heat supply, to realize that heat supply is followed
The maximum energy-saving of ring pump operation.
Background technology
Existing heating system generally carries out heat supply using circulating pump cyclic high-temperature hot water.At present, heating industry does not generally have
There is effective heat metering control program, such as when outdoor temperature is certain, how one timing of area of heat-supply service controls heating load, ability
The indoor temperature for meeting heat user reaches 18 degree.And the working experience typically by fireman is operated at present, for hot-zone
Domain indoor temperature is not up to standard and accurately cannot predict for thermal region indoor temperature is exceeded, and therefore, heating industry generally has heat supply
Temperature is not up to standard and heat supply temperature is exceeded and cause to waste two kinds of phenomenons, therefore for the utilization rate of the energy compare relatively low,
Energy waste, heating industry can be caused often to face loss situation.
When outdoor temperature drastically changes（Raise or reduce）When, pump operating cycle adjustment is delayed, does not adjust in time,
Heat supply accident can be caused to occur, such as bursting by freezing heating equipment, or cause serious energy waste, such as overheated for hot-zone, user's windowing dissipates
Heat.
After studying to prior art, inventor has found, existing heating industry is due to lacking effectively running, prison
Each quick response regulation measure is managed, causes heating industry energy utilization rate low, serious waste of resources, and also it is particularly thorny to there is heat supply
The problems such as.
Content of the invention
A kind of in view of the problems referred to above of prior art and/or other problemses, the invention provides method of circulating pump heat supply
And system, to realize the maximum energy-saving of heating cycle pump operation.
The method of the circulating pump heat supply of the present invention, including：
According to the atmospheric temperature meansigma methodss of the confession thermal region in a scheduled time, and the gross area for thermal region, calculate
Heating demand for thermal region；
According to the heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate heat supply
Quantity of circulating water needed for region；
According to the quantity of circulating water, the number of units and run time of the circulating pump of operation needed for determining in the scheduled time.
A kind of system of circulating pump heat supply of the present invention, including work station, heat supply area sensor and the network equipment；
The heat supply area sensor passes through the network equipment by the outdoor temperature of the confession thermal region for detecting and the Indoor Temperature number of degrees
According to being sent to work station；
The work station includes：Steam generator system testing equipment, controller and computing device；
Steam generator system testing equipment detection heat source temperature and the temperature for backwater, and by the information transmission for detecting to calculating
Equipment；
Controller receives the control command of computing device, and the water circulation work of schduling cycle pump according to this, or control pot
The heating work of furnace system；
Atmospheric temperature meansigma methodss of the computing device according to the confession thermal region in a scheduled time, and the total face for thermal region
Product, calculates the heating demand for thermal region；According to the heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and
Supply backwater temperature difference, calculates for the quantity of circulating water needed for thermal region；According to the quantity of circulating water, fortune needed for determining in the scheduled time
The number of units and run time of capable circulating pump according to this to controller transmitting control commands；And according to the air in the scheduled time
Temperature change value, calculates the thermic load for adjusting needed for thermal region, and further determines that the operation number of units to circulating pump and heat
The adjustment that carries out needed for source temperature according to this to controller transmitting control commands.
The solution of the present invention can carry out heat supply planning, and heating according to need improves the efficiency of circulating pump, can a certain degree of solution
Certainly energy waste problem, according to temperature change, adopts heat supply Adjusted Option, it is to avoid in time because temperature change causes heat supply accident.
Description of the drawings
Fig. 1 is the schematic diagram of the method for the circulating pump heat supply of the present invention；
Fig. 2 is the structural representation of the circulation heat pump heating system of the present invention.
Specific embodiment
Embody feature of present invention to describe in detail in the following description with the exemplary embodiments of advantage.It should be understood that this
Invention can have various changes in different embodiments, and which neither departs from the scope of the present invention, and therein explanation and
Diagram is treated as purposes of discussion in itself, and is not used to limit the present invention.
The invention provides a kind of scheme of circulating pump heat supply, is heated using circulating pump, circulating pump be conveying reaction,
Absorption, separation, the circulation fluid pump of regeneration of absorption solution, typically adopt centrifugal pump of single stage type.Circulating pump is by heating pipeline
Hot water circuit is got up, and the heat of thermal source is sent to and supplies thermal region.
Shown in Figure 1, the scheme of the circulating pump heat supply of the present invention is as follows：According to a scheduled time（Such as the time）Interior
For thermal region outdoor temperature（Atmospheric temperature）Changing value, and the gross area value of required confession thermal region, calculate for thermal region
Total load, according to heat supply total load, the circulation efficiency of pump, heat-exchange system efficiency and supply backwater temperature difference, calculates a day quantity of circulating water, and
Further determine that operation number of units and the day operation time of day circulating pump, and the operation number of units and run time pair with this day circulating pump
The circulating pump of heating system is scheduled.Additionally, for the heat supply for more being become more meticulous, it is also possible to carry out the above-mentioned scheduled time
Finer division, is such as divided into 12 periods（It was a period per 2 hours）, heat supply planning is carried out respectively with day and night
（The thermic load height period）.
Illustrate by taking concrete application as an example below：Calculation for summerday thermic load is as follows：Q=Qmax(tn-t1)/
(tn-t2)(GJ/h)；Q is that outdoor temperature is the thermic load under t1；Qmax is heat supply network maximum heating load；T2 is calculated for outdoor heating
Temperature (DEG C), is such as -20 DEG C（District heating design code value）；T1 is Heating Period outdoor temperature (DEG C)；Tn is adopted for indoor design
Warm temperature (DEG C), is such as 18 DEG C（National standard）.
Such as within the scheduled time, the maximum temperature of the air of forecast is 0 degree, minimum -10 degree, then knowable to mean temperature
Spend for -5, then by taking following confession hot-zone as an example：100,000 m of shopping centre2, design heating load is 70W/m2；Residential quarter is 800,000 m2If,
Meter thermic load is 50W/m2；Factory district is 50,000 m2, design heating load is 70W/m2, 50,000 m of other relevant ranges2, design heating load
For 90W/m2.Then further can calculate for above-mentioned confession hot-zone, the thermic load per hour of the blood circulation is 121.1GJ
(GJ）, whole day thermic load is 2904GJ, in case of supply backwater temperature difference is 40 degree, public according to day heating heat Calculation
Formula：The specific heat capacity of Q=cm (tx-ty), i.e. Q=quantity of circulating water × water × (supply water temperature-return water temperature), wherein, specific heats of the c for water
Hold, be 4.2 × 103Joules per Kg degree Celsius, m are quantity of circulating water, and tx is supply water temperature, and ty is return water temperature.Thus can count
Day quantity of circulating water m is calculated for 17285.71M3.With an input pump flow 650M3/ h, as a example by the circulating pump thermal efficiency 93%, then
Its actual circular flow is 650M3/h×93%=600M3/ h, thus can calculate and learn that the daily run time of circulating pump is
28.81h.
For circulating pump day operation 28.81h, two circulating pumps can be adopted, 14.4h be run per platform, to supplying for hot-zone
Heat；Or three circulating pumps are adopted, 9.6h is run per platform, can also meet heat demand.For the time that circulating pump is run simultaneously,
May be selected in temperature relatively low when, such as night（The thermic load maximum period）.So that the run time of circulating pump is as 28.81h as an example,
Then two circulating pumps will at least have 5.31h's to be operated together the time, can select to be operated together in two circulating pumps of night
5.31h.
Additionally, when the difference of the mean temperature for hot zone chamber and the mean temperature of forecast is more than a predetermined value, such as ± N
DEG C when, can be by the way of one or more in below scheme combine, the heating load of adjust automatically circulating heat supply system,
To reach the purpose of heat supply automatization adjustment.
The scheme of adjustment heating load includes：1st, heat source temperature is adjusted, thus the temperature difference of the adjustment for backwater；2nd, circulating pump is adjusted
Quantity of circulating water, including adjust circulating pump water circular flow and adjustment pump operating cycle time (h).The water of adjustment circulating pump is followed
Circulation, including adjusting pump operating cycle（Platform）Number and/or adjustment circulating pump converter hertz number, adjust the converter of circulating pump
Hertz number changes just can the rotating speed of circulating pump, thus adjust the water circular flow of circulating pump.
Wherein, heat source temperature is adjusted, can just adjusts the temperature difference for backwater, thus adjust the heating load of unit interval；Adjust
The circular flow of whole circulating pump, can just adjust circulating load of the single loop pump in the unit interval, and circulation rate is faster, then during unit
Between heating load also bigger.The circulation rate of adjustment circulating pump can be right to realize by adjusting the converter hertz number of circulating pump
The adjustment of circulating pump, such as converter circulating pump is installed, its converter hertz number is higher, then the rotating speed of circulating pump is also accordingly carried
Height, makes the flow of water circulation also accordingly improve.For the circulating pump for being fitted without converter, then can pass through to adjust circulating pump
Operation number of units realizes that the circulating pump of operation is more, then overall circulating water flow also accordingly can be increased.Such as in certain special operation condition
Under, need for water circular flow to bring up to 150%, if the flow of the circulating pump of current operation can increase increasing
Plus a circulating pump, and the hertz number of two circulating pumps is adjusted to the 75% of present flow rate, you can meet needs.
Such as, when the ambient temperature outside room have dropped N degree, for avoiding the indoor temperature for hot-zone from also accordingly reducing, can be with
By the way of heat source temperature is increased, the temperature difference of the confession backwater of recirculated water is improved, thus, it is possible to be to carry for hot-zone within the unit interval
For more heats, make to reduce for the temperature of hot-zone.Or, it is also possible to several circulating pumps are increased, the stream of water circulation is increased
Amount, thus also can be within the unit interval for providing more heats for hot-zone；Or the global cycle water of circulating pump can also be adjusted
Amount, such as increases the run time of circulating pump, as a example by the circulating pump of day operation 10h as described above, can increase to 11h or more
Many.
When the temperature outside room changes, staff or designer can select above-mentioned adjustment as the case may be
Scheme, to realize obtaining more preferable heating effect, or saves coal, or saves electric energy.Such as when atmospheric temperature reduces, if
Improve heat source temperature simultaneously and increase pump operating cycle number of units, then can obtain more preferable heating effect.If atmospheric temperature is raised
When, it is desirable to reduce heat supply, then can select to reduce heat source temperature to save coal, or reduce quantity of circulating water to save circulating pump
The electric energy of consuming.
For temperature situation jumpy, such as within the shorter time period, temperature drop is needed quickly, now short
More heat transfer is provided to for hot-zone in time, then can adopt the circular flow for improving heat source temperature or improving circulating pump；Or
Person can also improve heat source temperature simultaneously and improve the circular flow of circulating pump, to realize that the most fast time heats up, reach Indoor Temperature
18 DEG C of degree.
For temperature situation jumpy, or can be set in 1 hour temperature rises the situation that decline reaches N DEG C, just
It is judged to that temperature drastically changes.N values can be set according to specific needs, such as shopping centre etc., heating is required higher
Area, it is less to set N values, for urban and rural housing area, requires relatively not high area to heating, can set N values compared with
Greatly.Produce this kind of situation and can set corresponding heating early warning scheme, such as alarm etc. is sent to work station, adjustment is taken by work station
Scheme.For in N DEG C of scheduled time temperature drop, can adopt within the scheduled time such as one hour, additionally increase heating load.Can
Using heat source temperature, or increase quantity of circulating water in the given time is improved in the given time, i.e., increase within the scheduled time
Add water circular flow.Or simultaneously by the way of raising heat source temperature and raising water circular flow be combined with each other（I.e. matter reconciles
Amount is adjusted）.
Specifically calculation is：N DEG C of scheduled time temperature drop is located at, according to the computing formula of thermic load：Q=Qmax
(tn-t1)/(tn-t2), wherein t1=N；Calculate in the scheduled time, need extra increased thermic load（Patent claims adjustment heat
Load）.Thermic load according to the extra increase（Adjustment thermic load）, calculate by the way of heat source temperature is increased, heat source temperature
Value P of required raising；Or by the way of increase adjustment water follows speed, the value of adjustment required for the water circulating speed of circulating pump
Q；Or heat source temperature is improved S first（S<P）, then calculate and also need to for water circulating speed to be adjusted to how many, i.e., using simultaneously
Improve the mode of heat source temperature and water circulating speed.
For the relatively slow occasion of temperature change, then can be such as former in the way of adopting the run time for increasing circulating pump
Planning is pump operating cycle K hours, now due to temperature reduces suddenly, need to run K+1 hours, then need to control fortune more than circulating pump
Row one hour.
Additionally, increasing reliability of heat-supply system for further, separately in the indoor location temperature sensor for hot-zone, and can lead to
Cross the network equipment and indoor temperature information is sent to work station, to confirm whether heat supply Adjusted Option has effect.Typically for
For the indoor temperature of hot-zone, it is desirable to which which reaches 18 DEG C, if the temperature that temperature sensor is detected can maintain 18 degree, illustrate
The heat supply Adjusted Option that states can be played a role.
From above-mentioned technical scheme, the technical problem that the present invention can be solved mainly includes：1st, heat supply planning is carried out,
Heating according to need, improves the efficiency of circulating pump.By reasonable start-stop circulating pump, a certain degree of energy waste can be solved the problems, such as.2、
According to temperature change, heat supply Adjusted Option is adopted in time, including circulating pump quantity of circulating water, pump operating cycle time, circulating pump are conspicuous
Hereby number etc. revised planning.Avoid heat supply accident being caused because of temperature change, entered by work station in advance when outdoor temperature drastically changes
Row redundant computation, adjusts heat supply scheme.Therefore, " on time " and " rationally quantifying " heat supply that this case is adopted, it is achieved that " becoming more meticulous "
Heat supply, it is low to compare traditional heating mode pump operating cycle efficiency, and heat supply accident frequently, the problem of energy waste, with very big
Progress.
The Organization Chart of the heating system of the present invention is as shown in Fig. 2 including heat supply zone sensors 1, the network equipment 2 and work station
3.
Heat supply zone sensors 1 include outdoor temperature sensors and heat supply area indoor temperature transmitter, wherein, detect Indoor Temperature
When spending, with house diagonal central point away from ground high 1.2 meters to 1.5 meters at as preferable test point.
The network equipment 2 includes router, data transmission set etc., for the data that detect the sensor for hot-zone and
When send back work station.Data transmission set can adopt wired or wirelessly, by the data is activation of sensor to work
Stand.
The work station includes 3：Computing device 31, data base 32, steam generator system testing equipment 33 and controller 34 etc..
The computing system 31 planned for heat supply, average atmospheric temperature value according to weather report, and the total face for thermal region
Product value, calculates the total heat duties for thermal region, and further determines that the operation number of units and run time of circulating pump.And according to
Atmospheric temperature changing value in the scheduled time, calculates the thermic load for adjusting needed for thermal region, and further determines how tune
The operation number of units of whole circulating pump and heat source temperature.
The temperature information that the data base 32 is used for the atmospheric temperature value of storage forecast, temperature sensor is transmitted, and in advance
Redundant computation go out when temperature drastically changes, the emergency plan that should take.As temperature declined N degree in 1 hour to M degree,
Should adopt respectively and improve heat source temperature, or increase circulating pump, or increase pump operating cycle time etc..For there occurs
During temperature situation jumpy, directly can dispatch out available heat supply scheme from data base carries out emergency processing.
The steam generator system testing equipment 33 is used for detecting boiler operation situation, such as heat source temperature, for the temperature etc. of backwater, and
By the information transmission for detecting to computing system 31, heat supply planning is carried out for computing device.
The controller 34 is the operation number of units and run time of the circulating pump calculated according to computing system 31, and required
Heat source temperature, control circulating pump water circulation work, or control steam generator system heating work.
The solution of the present invention can carry out heat supply planning (the positive heat supply design thermic load of effect and the difference for running thermic load), press
Heat supply is needed, the efficiency of circulating pump is improved, a certain degree of energy waste can be solved the problems, such as.And also according to temperature change, in time
Using heat supply Adjusted Option, it is to avoid because temperature change causes heat supply accident, entered by work station in advance when outdoor temperature drastically changes
Row redundant computation, adjusts heat supply scheme.Compare traditional heating mode pump operating cycle efficiency low, and heat supply accident frequently, the energy
The problem of waste, tool are greatly improved.
Artisan will appreciate that without departing from the present invention's disclosed in appended claims of the invention
The change that is made in the case of scope and spirit and retouching, belong within the scope of the claims of the present invention.
Claims (5)
1. a kind of method of circulating pump heat supply, it is characterised in that include：
According to the meansigma methodss of the predicting atmosphere temperature of the confession thermal region in one first scheduled time, and the gross area for hot-zone,
Calculate the heating demand for thermal region；
According to the heating demand, and the efficiency of circulating pump, the efficiency of heat-exchange system and supply backwater temperature difference, calculate and supply thermal region
Required quantity of circulating water；
According to the quantity of circulating water, the number of units and run time of the circulating pump of operation needed for determining in first scheduled time；
When the difference of the mean temperature supplied outside thermal region room and the mean temperature of forecast is more than a first predetermined value, adjustment is described
The heat source temperature of circulating pump and/or the quantity of circulating water；And,
When changing value of the heat supply regional atmospheric temperature within second scheduled time is more than a second predetermined value, circulating pump is adjusted
Heat source temperature and/or the quantity of circulating water of adjustment circulating pump；Wherein, first scheduled time is more than second scheduled time.
2. method according to claim 1, it is characterised in that also include：When the atmospheric temperature is in second scheduled time
Interior changing value then adjusts the run time of circulating pump beyond third predetermined value but without departing from the second predetermined value；Wherein institute
Third predetermined value is stated less than the second predetermined value.
3. a kind of system of circulating pump heat supply, including work station, heat supply zone sensors and the network equipment；
The outdoor temperature and indoor temperature data of the confession hot-zone for detecting are sent to by the heat supply zone sensors by the network equipment
Work station；
The work station includes：Steam generator system testing equipment, controller and computing device；
Steam generator system testing equipment detection heat source temperature and the temperature for backwater, and the information transmission for detecting is set to calculating
Standby；
Controller receives the control command of computing device, and the water circulation work of schduling cycle pump according to this, or control boiler system
The heating work of system；
Meansigma methodss of the computing device according to the predicting atmosphere temperature of the confession hot-zone in one first scheduled time, and for thermal region
The gross area, calculates the heating demand for thermal region；According to the heating demand, and the efficiency of circulating pump, the effect of heat-exchange system
Rate and supply backwater temperature difference, calculate for the quantity of circulating water needed for thermal region；According to the quantity of circulating water, first scheduled time is determined
The number of units and run time of the circulating pump of interior required operation according to this to controller transmitting control commands；And it is predetermined according to first
Atmospheric temperature changing value in time, calculates the thermic load for adjusting needed for thermal region, and further determines how adjustment and follow
The operation number of units of ring pump and heat source temperature；
The work station also includes data base, and for the temperature data of storage temperature sensor passes, and temperature is when drastically changing
Emergency plan；
The emergency plan includes：When changing value of the heat supply regional atmospheric temperature within one second scheduled time pre- more than one second
During definite value, the quantity of circulating water of the heat source temperature and/or adjustment circulating pump of circulating pump is adjusted；Wherein, first scheduled time is big
In second scheduled time.
4. system according to claim 3, it is characterised in that the emergency plan also includes：When the atmospheric temperature exists
Changing value in second scheduled time then adjusts the operation of circulating pump beyond third predetermined value but without departing from the second predetermined value
Time；Wherein, the third predetermined value is less than the second predetermined value.
5. according to the arbitrary described system of claim 3-4, it is characterised in that the computing device is additionally operable to big for hot zone chamber
When changing value of the temperature degree within second scheduled time exceedes second predetermined value, dispatch from the data base corresponding emergent
Scheme, and according to this to controller transmitting control commands, with the water circulation work of schduling cycle pump or adding for control steam generator system
Thermal technology makees.
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| EP3382490B1 (en) * | 2017-03-31 | 2023-05-03 | Mitsubishi Electric R&D Centre Europe B.V. | Method for controlling a hydronic heating system in multiple rooms |
| CN108534366A (en) * | 2018-03-09 | 2018-09-14 | 万家乐热能科技有限公司 | A kind of network-based wall hanging furnace control system |
| CN110748951A (en) * | 2019-11-01 | 2020-02-04 | 北京硕人时代科技股份有限公司 | Method, device and system for determining heat supply energy saving amount |
| CN114110716B (en) * | 2021-11-24 | 2023-06-02 | 新疆天池能源有限责任公司 | Operation energy efficiency monitoring control system and method of thermoelectric unit, computer equipment and storage medium |
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| CN102865623B (en) * | 2012-09-28 | 2014-09-10 | 季涛 | Centralized heating public building heat supply energy-saving control method |
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Effective date of registration: 20200610 Address after: 010010 Jinxiuyuan community, 3.5km, 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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