CN103471178B - Heat supply energy-saving control system and energy-saving control method - Google Patents
Heat supply energy-saving control system and energy-saving control method Download PDFInfo
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- CN103471178B CN103471178B CN201310470008.XA CN201310470008A CN103471178B CN 103471178 B CN103471178 B CN 103471178B CN 201310470008 A CN201310470008 A CN 201310470008A CN 103471178 B CN103471178 B CN 103471178B
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Abstract
The invention discloses a heat supply energy-saving control system and energy-saving control method for a heat exchange station. The heat supply energy-saving control system comprises at least one control center and a plurality of water return valves, wherein the control center is in communication with at least one heat exchange station and can obtain working data of all electric equipment of the heat exchange station, and the water return valves are used for controlling hot water supply quantity of users. The heat exchange station detects the water return temperature and adjusts the opening degree of the water return valves according to the water return temperature. According to the heat supply energy-saving control system and energy-saving control method, the running time and electricity consumption quantity of all the electric equipment of a heat supply station are correspondingly adjusted according to actual indoor temperatures of the users, the indoor temperatures of the users are made to be standard, and resources and heat supply cost are saved.
Description
Technical field
The present invention relates to heat supply process field, particularly relate to a kind of for thermal control system and control method.
Background technology
Existing heating industry, generally by operation of manually reckoning by rule of thumb, traditional heating industry control technology causes energy waste, the energy waste phenomenon that heating industry control technology exists for many years.
Such as, existing heating industry control technology causes heat supply accident frequent, when outdoor temperature sharply changes (raise or reduce), existing boiler operatiopn adjustment is delayed, cannot immediately adjust, cause heat supply accident frequently to occur (bursting by freezing heating equipment), cause serious energy waste (overheated open a window).Existing heating industry control technology heat exchange station and heat exchange station temperature is up to standard distributes difficulty, heat exchange station is from heating plant near-end warm (indoor temperature exceeds standard), and heat exchange station is from heating plant far-end heat cold (indoor temperature is not up to standard), and heat distribution is uneven.Existing heating industry control technology hot Lou Yuyongre building temperature distribution difficulty up to standard, with hot building far from heat exchange station near-end heat (indoor temperature exceeds standard), with hot building far from heat exchange station far-end cold (indoor temperature is not up to standard), heat distribution is uneven.Existing heating industry control technology hot cell distributes difficulty with hot cell temperature is up to standard, and with hot cell from heat exchange station near-end heat (indoor temperature exceeds standard), with hot cell from heat exchange station near-end cold (indoor temperature is not up to standard), heat distribution is uneven.Cause with hot family and distribute difficulty with hot family temperature is up to standard, with hot family from heat exchange station near-end heat (indoor temperature exceeds standard), with hot building far from heat exchange station near-end cold (indoor temperature is not up to standard), heat distribution is uneven.
Meanwhile, even if rule of thumb adjust the heating load of each heat exchange station, the standard that also often neither one is unified, artificial adjustment simultaneously also may cause adjustment inaccurate, too relies on the problem of personal experience.
Summary of the invention
The object of the present invention is to provide a kind of for thermal control system and control method, for solve existing for thermal control system heat supply adjustment by artificial experience, cause adjustment data inaccurate, cause the wasting of resources, the problems such as heat cost is high.
A kind of heat supply energy-saving control system of the present invention, comprises, at least one heat exchange station; Control centre, communicates with this at least one heat exchange station, and this control centre can obtain the operational data of each electrical equipment of this at least one heat exchange station; Multiple backwater section door, for controlling the hot water supply of user; Wherein, this heat exchange station detects return water temperature, and adjusts the aperture of backwater section door according to return water temperature.
According to an a kind of embodiment for thermal control system of the present invention, wherein, also comprise: this heat exchange station is multiple, the temperature difference of the return water temperature between this control centre this heat exchange station more multiple, and according to the temperature difference of the return water temperature between this heat exchange station multiple, the internal circulating load of recycling water formulation, and then the aperture of each backwater section door adjusting each heat exchange station.
According to an a kind of embodiment for thermal control system of the present invention, wherein, also comprise: the aperture that the water supply section door of heat exchange station is initial is maximum opening, be decided to be benchmark zero point 50% of maximum opening initial for backwater section door, carry out heating load adjustment.
According to an a kind of embodiment for thermal control system of the present invention, wherein, internal circulating load=thermic load the ÷ [specific heat of water holds × (supply water temperature-return water temperature)] of recirculated water, internal circulating load as recirculated water increases, then increase the aperture of each backwater section door of each heat exchange station, internal circulating load as recirculated water reduces, then reduce the aperture of each backwater section door of each heat exchange station.
According to an a kind of embodiment for thermal control system of the present invention, wherein, this backwater section door comprises: heat exchange station backwater section door, for controlling the hot water supply of heat exchange station; Building backwater section door, for controlling the hot water supply in a building; Unit backwater section door, for controlling the hot water supply of a unit; Room backwater section door, for controlling the hot water supply in a room.
According to an a kind of embodiment for thermal control system of the present invention, wherein, this control centre calculates the mean value of the respectively return water temperature of this heat exchange station, and the mean value of the return water temperature of each heat exchange station and this heat exchange station return water temperature is compared, return water temperature as this heat exchange station is greater than the mean value of this heat exchange station return water temperature, then reduce the aperture of this backwater section door, the return water temperature as this heat exchange station is less than the mean value of this heat exchange station return water temperature, then increase this backwater section door aperture;
This control centre calculates the mean value of the return water temperature of each building, and the return water temperature of each building and the mean value of this return water temperature are compared, return water temperature as this building is greater than the mean value of this return water temperature, then reduce the aperture of this building backwater section door, return water temperature as this building is less than the mean value of this return water temperature, then increase the aperture of this building backwater section door; This control centre calculates the mean value of the respectively return water temperature of this unit, and the mean value of the return water temperature of each unit and the return water temperature of this unit is compared, return water temperature as this unit is greater than the mean value of the return water temperature of this unit, then reduce the aperture of this unit backwater section door, return water temperature as this unit is less than the mean value of the return water temperature of this unit, then increase the aperture of this unit backwater section door; This control centre calculates the mean value of the return water temperature in the room of each unit, and the mean value of the return water temperature in the return water temperature in the room of each unit and the room of unit is compared, return water temperature as this room is greater than the mean value of the return water temperature in the room of unit, then reduce the aperture of the backwater section door in this room, return water temperature as this room is less than the mean value of the return water temperature in the room of unit, then increase the aperture of the backwater section door in this room.
According to an a kind of embodiment for thermal control system of the present invention, wherein, also comprise: temperature acquisition system, for gathering the indoor temperature of user; This control centre gathers the indoor temperature of user, and the indoor temperature of this user and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the thermic load of this heat exchange station, and according to the thermic load of this heat exchange station, adjust the aperture of this backwater section door.
According to an a kind of embodiment for thermal control system of the present invention, wherein, when the outdoor temperature of user often change ± 1 DEG C time, the aperture of this control centre adjustment backwater section door, to increase or to reduce heating load.
According to an a kind of embodiment for thermal control system of the present invention, wherein, this control centre was divided into multiple time interval by one day, according to the difference of each time interval outdoor temperature, adjusted the aperture of this backwater section door, to increase or to reduce heating load.
A kind of supply control method for heat of the present invention, wherein, comprising: detect return water temperature; According to the aperture of return water temperature adjustment backwater section door, to increase or to reduce heating load.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, also comprise: the temperature difference of the return water temperature between this heat exchange station more multiple, and according to the temperature difference of the return water temperature between this heat exchange station multiple, the internal circulating load of recycling water formulation, and then adjust the aperture of each backwater section door of each heat exchange station, to increase or to reduce heating load.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, also comprise: the aperture that the water supply section door of heat exchange station is initial is maximum opening, be decided to be benchmark zero point 50% of maximum opening initial for backwater section door, carry out heating load adjustment.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein internal circulating load=thermic load the ÷ [specific heat of water holds × (supply water temperature-return water temperature)] of recirculated water, internal circulating load as recirculated water increases, then increase the aperture of each backwater section door of each heat exchange station, internal circulating load as recirculated water reduces, then reduce the aperture of each backwater section door of each heat exchange station.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, backwater section door comprises: the mean value calculating the respectively return water temperature of this heat exchange station, and the mean value of the return water temperature of each heat exchange station and this heat exchange station return water temperature is compared, return water temperature as this heat exchange station is greater than the mean value of this heat exchange station return water temperature, then reduce the aperture of this backwater section door, the return water temperature as this heat exchange station is less than the mean value of each heat exchange station return water temperature, then increase this heat exchange station backwater section door aperture; Calculate the mean value of the return water temperature of each building, and by respectively the return water temperature of this building and the mean value of this return water temperature compare, return water temperature as this building is greater than the mean value of this return water temperature, then reduce the aperture of this building backwater section door, return water temperature as this building is less than the mean value of this return water temperature, then increase the aperture of this building backwater section door; Calculate the mean value of the respectively return water temperature of this unit, and the mean value of the return water temperature of each unit and the return water temperature of this unit is compared, return water temperature as this unit is greater than the mean value of the return water temperature of this unit, then reduce the aperture of this unit backwater section door, return water temperature as this unit is less than the mean value of the return water temperature of this unit, then increase the aperture of this unit backwater section door; Calculate the mean value of the return water temperature in the room of each unit, and the mean value of the return water temperature in the return water temperature in the room of each unit and the room of this unit is compared, return water temperature as this room is greater than the mean value of the return water temperature in the room of this unit, then reduce the aperture of the backwater section door in this room, return water temperature as this room is less than the mean value of the return water temperature in the room of this unit, then increase the aperture of the backwater section door in this room.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, set a temperature on average, this temperature on average and a normal temperature compare, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the thermic load of this heat exchange station, and according to the thermic load of this heat exchange station, adjust the aperture of this backwater section door.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, when the outdoor temperature of user often change ± 1 DEG C time, the aperture of adjustment backwater section door, to increase or to reduce heating load.
According to an embodiment of a kind of supply control method for heat of the present invention, wherein, be divided into multiple time interval by one day, according to the difference of each time interval outdoor temperature, adjust the aperture of this backwater section door.
In sum, by the return water temperature by each for control centre's Real-time Obtaining backwater section door, and adjust the aperture of backwater section door according to return water temperature, by the aperture of adjustment backwater section door, recycling water formulation internal circulating load, and then the temperature adjusting each user's heat supply indoor.So, can reach according to return water temperature, adjustment heat exchange station recirculated water internal circulating load (adjustment unit building recirculated water internal circulating load adjusts by hot family recirculated water internal circulating load), saves resource, also saves heat cost simultaneously in time.
Accompanying drawing explanation
Figure 1 shows that the module map of the present invention for thermal control system;
Figure 2 shows that the module map of the present invention for thermal control system;
Fig. 3 is the flow chart of the first embodiment of supply control method for heat of the present invention;
Fig. 4 is the flow chart of the second embodiment of supply control method for heat of the present invention;
Fig. 5 is the flow chart of the 3rd embodiment of supply control method for heat of the present invention;
Fig. 6 is the flow chart of the 4th embodiment of supply control method for heat of the present invention;
Fig. 7 is the flow chart of the 5th embodiment of supply control method for heat of the present invention;
Figure 8 shows that the heat distribution schematic diagram of a day.
Detailed description of the invention
Figure 1 shows that the module map of the present invention for thermal control system, as shown in Figure 1, the present embodiment comprises control centre 1, multiple heat exchange station, multiple heat exchange station backwater section door, multiple building backwater section door, multiple unit backwater section door and multiple rooms backwater section door for thermal control system.
With reference to figure 1, in the present embodiment, multiple heat exchange station comprises heat exchange station 2 and heat exchange station 3, heat exchange station 2 corresponding heat exchange station backwater section door 21, heat exchange station 3 corresponding heat exchange station backwater section door 31.Each heat exchange station is corresponding to multiple community and building heating.In Fig. 1, the backwater section door 22 of corresponding two buildings of heat exchange station backwater section door 21 and building backwater section door 23, building backwater section door 22 and building backwater section door 23 are respectively used to the internal circulating load of the recirculated water controlling its building.The corresponding multiple unit backwater section door of each building backwater section door, only for building backwater section door 23, its corresponding unit backwater section door 231 and unit backwater section door 232, unit backwater section door is used for the internal circulating load of the recirculated water of control unit.Each room of each unit has backwater section door equally, and for unit backwater section door 232, its corresponding room backwater section door 233 and room backwater section door 234, room backwater section door is used for the internal circulating load of the recirculated water of control unit.
The internal circulating load of the recirculated water of corresponding heat exchange station is regulated, to regulate the heating load of heat exchange station by multiple heat exchange station backwater section door.The internal circulating load of the recirculated water of corresponding building is regulated by multiple building backwater section door.The internal circulating load of the recirculated water of corresponding unit is regulated by multiple unit backwater section door.The internal circulating load of the recirculated water in corresponding room is regulated by multiple rooms backwater section door.
With reference to figure 1, one embodiment of the present invention are described.Control centre 1 receives the return water temperature information of heat exchange station 2 and heat exchange station 3, and calculates the mean value of the return water temperature of heat exchange station 2 and heat exchange station 3, and the return water temperature by heat exchange station 2 and heat exchange station 3 adds the General Logistics Department, then divided by the quantity 2 of heat exchange station.The return water temperature value of heat exchange station 2 and heat exchange station 3 compares with the mean value of return water temperature respectively, when the return water temperature value of heat exchange station 2 or heat exchange station 3 is greater than the mean value of return water temperature, the then corresponding aperture reducing heat exchange station backwater section door 21 or heat exchange station backwater section door 31, when the return water temperature value of heat exchange station 2 or heat exchange station 3 is less than the mean value then corresponding aperture increasing heat exchange station backwater section door 21 or heat exchange station backwater section door 31 of return water temperature.
With reference to figure 1, another embodiment of the invention is described.Control centre 1 receives the return water temperature information of each building of a certain heat exchange station institute heat supply, and calculate the mean value of the return water temperature of each building, the return water temperature value of each building is compared with the mean value of each building return water temperature respectively, when the return water temperature value of a building is greater than the mean value then corresponding aperture reducing building backwater section door corresponding to this building of each building return water temperature, when the return water temperature value of a building is less than the mean value then corresponding aperture increasing building backwater section door corresponding to this building of each building return water temperature.
With reference to figure 1, another embodiment of the present invention is described.Control centre 1 receives each unit return water temperature information corresponding to a certain building, and calculate the mean value of the return water temperature of each unit, the return water temperature of each unit is compared with the mean value of each unit return water temperature respectively, when the return water temperature of a unit is greater than the mean value then corresponding aperture reducing unit backwater section door corresponding to this unit of each unit return water temperature, when the return water temperature value of a unit is less than the mean value then corresponding aperture increasing unit backwater section door corresponding to this unit of each unit return water temperature.
With reference to figure 1, another embodiment of the present invention is described.Control centre 1 receives the return water temperature information in the room of each unit corresponding to a certain unit, and calculate the mean value of the return water temperature in the room of each unit, the return water temperature value in the room of each unit is compared with the mean value of the return water temperature in the room of each unit respectively, when the return water temperature value in a room is greater than the mean value then corresponding aperture reducing room backwater section door corresponding to this room of the room return water temperature of each unit, when the return water temperature value in a room is less than the mean value then corresponding aperture increasing room backwater section door corresponding to this room of return water temperature.
Brief description the present invention realizes principle for thermal control system.Generally, the internal circulating load=thermic load ÷ [specific heat of water holds × (supply water temperature-return water temperature)] of recirculated water.It is known that thermic load and specific heat of water hold, supply water temperature can be recorded by water supply section door place, and return water temperature can record according to backwater section door place, therefore, for reaching a certain heat supply, also just can calculate the internal circulating load of required recirculated water, then calculate the aperture of backwater section door according to the internal circulating load of recirculated water, the unit of the internal circulating load of recirculated water can be the weight of water.As shown from the above formula, the temperature difference of water supply and backwater is large, then the internal circulating load of recirculated water reduces.
Figure 2 shows that the present invention's another module map for thermal control system, as shown in Figure 2, control centre 1 communicates with heat exchange station 2, heat exchange station 3 and heat exchange station 4 respectively.Heat exchange station 2 is to user for hot cell 5 heat supply, and heat exchange station 3 is to user for hot cell 6 heat supply, and heat exchange station 4 supplies hot cell 7 heat supply to user.Each heat exchange station and user are provided with heat stations backwater section door between hot cell.Further, control centre 1 also can obtain user supplies the indoor in hot cell 7 for hot cell 6 and user temperature data for hot cell 5, user respectively.User can represent a building, a unit or certain house for hot cell.Composition graphs 1 and Fig. 2, user has multiple building backwater section door, multiple unit backwater section door and multiple rooms backwater section door respectively for hot cell 5-7.
As shown in Figure 2, user has temperature acquisition system for hot cell (comprising building, unit or room), such as user has temperature acquisition system 14 for hot cell 5, multiple temperature acquisition system will be used for the indoor temperature gathering user, this control centre gathers the indoor temperature of user, and the indoor temperature of this user and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the thermic load of this heat exchange station, and according to the thermic load of this heat exchange station, adjust the aperture of this backwater section door.Wherein, normal temperature can be 18 DEG C.
For an embodiment, when the outdoor temperature that temperature acquisition system collects user often change ± 1 DEG C time, then control centre 1 adjusts the aperture of each backwater section door of corresponding adjustment.
For an embodiment, supply water first at heat exchange station, the water supply section door of heat exchange station can open 100%, the backwater section door of the heat exchange station of correspondence then opens 50%, then the return water temperature of each heat exchange station is tested, according to the mean value of the return water temperature of heat exchange station, the return water temperature value of each heat exchange station is compared with the mean value of return water temperature respectively, when return water temperature value is greater than the mean value of return water temperature, the then corresponding aperture reducing heat exchange station water supply section door, when the return water temperature value of heat exchange station is less than the mean value then corresponding aperture increasing heat exchange station water supply section door of return water temperature.Certainly, generally, the aperture of water supply section door also can be made to open 100% all the time, and only the aperture of backwater section door is adjusted.
The temperature difference of the return water temperature between this control centre this heat exchange station more multiple, and according to the temperature difference of the return water temperature between this heat exchange station multiple, the internal circulating load of recycling water formulation, and then the aperture of each backwater section door adjusting each heat exchange station.
As shown in Figure 2, control centre 1 supplies thermal control first to each heat exchange station, and a kind of mode estimated can be adopted to produce the first time dispatch command of each heat exchange station.The method generating first time dispatch command can be: setting one meteorological mean temperature, mean temperature can be that the max. daily temperature on a certain date and Daily minimum temperature sum are divided by two, the max. daily temperature such as estimated is 0 DEG C, and Daily minimum temperature is-10 DEG C, then mean temperature is-5 DEG C.Design Heating Load computing formula: Qmax=q × A, wherein, Q is central heat supplying design heating load, and q is heating Thermal Synthetic index w/m
2, A is Areas benefiting from central heating m
2, such as, q is 55W/m
2, A is 1000000m
2.Then Qmax=1000000m
2× 55W/m
2=5.5 × 107w/h, the unit of above-mentioned heat supply total load is lucky burnt, and represent with symbol GJ, namely 1,000,000,000 joules, 5.5 × 107w/h is scaled lucky burnt (GJ), be then 1.98 × 10
2gJ.The thermic load under area of heat-supply service can be obtained.Be then 1000000m at area of heat-supply service
2, and when mean temperature is-5 DEG C, thermic load hourly is: Q=Qmax (tn-t ' w)/(tn-tw)=1.98 × 10
2gJ × [18-(-5)]/[18-(-20)]=121GJ/h, wherein tn is indoor design heating temperature, namely expects the temperature reached, t ' w is Heating Period outdoor temperature, namely mean temperature is-5 DEG C, and tw is outdoor heating accounting temperature, can be set as negative 20 DEG C.
In addition, when the actual indoor temperature recorded is 16 DEG C, tn=16 is substituted into formula Q=Qmax (tn-t ' w)/(tn-tw) (GJ/h)=1.98 × 102GJ × [16-(-5)]/[16-(-20)]=115.49GJ/h.119.82GJ/h when 115.49GJ/h when 16 DEG C being deducted-reaches 18 DEG C obtains as-4.33GJ/h, and namely heating plant needs the thermic load increasing 4.33GJ/h, i.e.-1.99w/m
2, namely need adjustment thermic load by 55-(-1.99) and=56.99w/m
2perform.
Continue for thermic load hourly for Q=121GJ/h, 121GJ/h × 24h=2904GJ, suppose that supply backwater temperature difference is 40, it is 4.2 × 103 Joules per Kg DEG C that specific heat of water holds, then internal circulating load m=2904 × 10 of known recirculated water
9/ (4.2 × 10
3× 10
3× 40), i.e. m=1.7285714 × 10
4=17.285714t.Consider the efficiency of general circulating pump: 650 ÷ 93%=600t/h, i.e. pump operating cycle time: 17285.71t ÷ 600t/ hour=28.81h, 17285.71t ÷ 2 ÷ 600 ms/h=14.40h, i.e. every platform pump operating cycle 14.40 hours.Day rate of water make-up: 17285.714t × 0.015=259t.Day small pump running time: 259t ÷ 50=5.18h.Day small pump power consumption: 5.18h × 22kwh=113.96kwh.
Fig. 3 is the flow chart of the first embodiment of supply control method for heat of the present invention, as shown in Figure 3, comprising:
The temperature of step S1, detection backwater;
General also need detects the temperature supplied water, the supply water temperature needed for obtaining according to water supply section door and backwater section door and return water temperature.
Step S2, aperture according to return water temperature adjustment backwater section door;
Namely the temperature of the temperature of water supply and backwater can be compared, according to comparative result, select the aperture increasing or reduce backwater section door, control heating load with this.
Fig. 4 is the flow chart of the second embodiment of supply control method for heat of the present invention, and as shown in Figure 4, the present embodiment includes the method for adjustment of the backwater section door of exchange heat stations, comprising:
The return water temperature of steps A 1, detection heat exchange station;
Steps A 2, calculate the mean value of the return water temperature of each heat exchange station;
The size of the backwater low temperature of steps A 3, more each heat exchange station and the mean value of return water temperature, when the return water temperature of this heat exchange station is greater than the mean value of this heat exchange station return water temperature, perform steps A 4, when the return water temperature of this heat exchange station is less than the mean value of each heat exchange station return water temperature, perform steps A 5;
Steps A 4, the aperture of this backwater section door of reducing;
Steps A 5, increase this heat exchange station backwater section door aperture.
Fig. 5 is the flow chart of the 3rd embodiment of supply control method for heat of the present invention, and as shown in Figure 5, the present embodiment includes the method for adjustment of the backwater section door to the building corresponding to same heat exchange station, comprising:
The return water temperature of step B1, detection building;
Step B2, calculate the mean value of the return water temperature of each building;
The size of the backwater low temperature of step B3, more each building and the mean value of return water temperature, when the return water temperature of this building is greater than the mean value of this building return water temperature, perform step B4, when the return water temperature of this building is less than the mean value of each building return water temperature, perform step B5;
Step B4, reduce the aperture of this backwater section door;
Step B5, increase this building backwater section door aperture.
Fig. 6 is the flow chart of the 4th embodiment of supply control method for heat of the present invention, and as shown in Figure 6, the present embodiment includes the method for adjustment of the backwater section door to each unit corresponding to same building, comprising:
The return water temperature of step C1, detecting unit;
Step C2, calculate the mean value of the return water temperature of each unit;
The size of the backwater low temperature of step C3, more each unit and the mean value of return water temperature, when the return water temperature of this unit is greater than the mean value of this unit return water temperature, perform step C4, when the return water temperature of this unit is less than the mean value of each unit return water temperature, perform step C5;
Step C4, reduce the aperture of this backwater section door;
Step C5, increase this unit backwater section door aperture.
Fig. 7 is the flow chart of the 5th embodiment of supply control method for heat of the present invention, and as shown in Figure 7, the present embodiment includes the method for adjustment of the backwater section door to each room corresponding to same unit, comprising:
The return water temperature in step D1, detection room;
Step D2, calculate the mean value of the return water temperature in each room;
The size of the backwater low temperature in step D3, more each room and the mean value of return water temperature, when the return water temperature in this room is greater than the mean value of this room return water temperature, perform step D4, when the return water temperature in this room is less than the mean value of each room return water temperature, perform step D5;
Step D4, reduce the aperture of this backwater section door;
Step D5, increase this room backwater section door aperture.
Figure 8 shows that the heat distribution schematic diagram of a day, as shown in Figure 8, the time zone that abscissa represents one day from 11 o'clock to 9 points, 24 hourly averages in one day are divided into 12 time intervals, the instant heating load variations time period, every two hours set a thermic load quantity, and in units of GJ, as the highest in the outside air temperature of 11 o'clock to 15 o'clock in a day, so can corresponding at this moment between the interval thermic load reducing heat exchange station, and 3 o'clock to the 5 o'clock late into the night is general comparatively cold, namely now required thermic load is maximum, so corresponding at this moment between the interval heating load increasing heat exchange station, as in Fig. 3, the heat exchange station thermic load at 11 o'clock to 13 o'clock noon is 135GJ, and the thermic load at 3 o'clock to 5 o'clock night is 402GJ.Equally, in the aperture of heating load demand larger period then each backwater section door of corresponding increase, in the aperture of heating load demand less period then corresponding reduction backwater section door.
Wherein, in one day, the heat supply total amount of 24 hours is multiplied by by aforesaid thermic load hourly to calculate for 24 hours, and distribute to 12 time intervals, according to the heating load needed for 12 time intervals, calculate the actual heating load of heat exchange station in each time interval.
The amount of the thermic load of each time interval in certain Fig. 3 is different according to the heat altogether of a day and the difference of time interval heating load.In addition, the present embodiment divide into 12 time intervals by one day, in fact also can divide flexibly, then this do not repeat.
In sum, by the return water temperature by each for control centre's Real-time Obtaining backwater section door, and adjust the aperture of backwater section door according to return water temperature, by the aperture of adjustment backwater section door, adjust the internal circulating load of each recirculated water, and then adjust the temperature of each user for hot cell.So, can reach according to return water temperature, the internal circulating load of adjustment heat exchange station recirculated water, saves resource, also saves heat cost simultaneously in time.
Although exemplary embodiment describe the present invention with reference to several, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit of the present invention or essence is not departed from because the present invention can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely in the spirit and scope that claims limit, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claims and contained.
Claims (15)
1. a heat supply energy-saving control system, is characterized in that, comprises,
At least one heat exchange station;
Control centre, communicates with this at least one heat exchange station, and this control centre can obtain the operational data of each electrical equipment of this at least one heat exchange station;
Multiple backwater section door, for controlling the hot water supply of user;
Wherein, this heat exchange station detects return water temperature, and adjusts the aperture of backwater section door according to return water temperature; The aperture that the water supply section door of heat exchange station is initial is maximum opening, and the initial aperture of each backwater section door is 50%; This control centre, according to meteorological mean temperature, area of heat-supply service, indoor design heating temperature and outdoor temperature, produces the first time dispatch command of each heat exchange station.
2. as claimed in claim 1 for thermal control system, it is characterized in that, also comprise: this heat exchange station is multiple, the temperature difference of the return water temperature between this control centre this heat exchange station more multiple, and according to the temperature difference of the return water temperature between this heat exchange station multiple, the internal circulating load of recycling water formulation, and then the aperture of each backwater section door adjusting each heat exchange station.
3. as claimed in claim 2 for thermal control system, it is characterized in that, internal circulating load=thermic load the ÷ [specific heat of water holds × (supply water temperature-return water temperature)] of recirculated water, internal circulating load as recirculated water increases, then increase the aperture of each backwater section door of each heat exchange station, internal circulating load as recirculated water reduces, then reduce the aperture of each backwater section door of each heat exchange station.
4. as claimed in claim 2 for thermal control system, it is characterized in that, this backwater section door comprises:
Heat exchange station backwater section door, for controlling the hot water supply of heat exchange station;
Building backwater section door, for controlling the hot water supply in a building;
Unit backwater section door, for controlling the hot water supply of a unit;
Room backwater section door, for controlling the hot water supply in a room.
5., as claimed in claim 4 for thermal control system, it is characterized in that,
This control centre calculates the mean value of the respectively return water temperature of this heat exchange station, and the mean value of the return water temperature of each heat exchange station and this heat exchange station return water temperature is compared, return water temperature as this heat exchange station is greater than the mean value of this heat exchange station return water temperature, then reduce the aperture of this backwater section door, return water temperature as this heat exchange station is less than the mean value of this heat exchange station return water temperature, then increase this backwater section door aperture;
This control centre calculates the mean value of the return water temperature of each building, and the return water temperature of each building and the mean value of this return water temperature are compared, return water temperature as this building is greater than the mean value of this return water temperature, then reduce the aperture of this building backwater section door, return water temperature as this building is less than the mean value of this return water temperature, then increase the aperture of this building backwater section door;
This control centre calculates the mean value of the respectively return water temperature of this unit, and the mean value of the return water temperature of each unit and the return water temperature of this unit is compared, return water temperature as this unit is greater than the mean value of the return water temperature of this unit, then reduce the aperture of this unit backwater section door, return water temperature as this unit is less than the mean value of the return water temperature of this unit, then increase the aperture of this unit backwater section door;
This control centre calculates the mean value of the return water temperature in the room of each unit, and the mean value of the return water temperature in the return water temperature in the room of each unit and the room of unit is compared, return water temperature as this room is greater than the mean value of the return water temperature in the room of unit, then reduce the aperture of the backwater section door in this room, return water temperature as this room is less than the mean value of the return water temperature in the room of unit, then increase the aperture of the backwater section door in this room.
6. as claimed in claim 1 for thermal control system, it is characterized in that, also comprise:
Temperature acquisition system, for gathering the indoor temperature of user;
This control centre gathers the indoor temperature of user, and the indoor temperature of this user and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the thermic load of this heat exchange station, and according to the thermic load of this heat exchange station, adjust the aperture of this backwater section door.
7. as claimed in claim 1 to it is characterized in that for thermal control system, when the outdoor temperature of user often change ± 1 DEG C time, the aperture of this control centre adjustment backwater section door, to increase or to reduce heating load.
8. as claimed in claim 1 for thermal control system, it is characterized in that, this control centre was divided into multiple time interval by one day, according to the difference of each time interval outdoor temperature, adjusted the aperture of this backwater section door, to increase or to reduce heating load.
9. a supply control method for heat, is characterized in that, comprising:
Detect return water temperature;
Aperture initial for the water supply section door of heat exchange station is configured to maximum opening, and the initial aperture of each backwater section door is 50%;
According to meteorological mean temperature, area of heat-supply service, indoor design heating temperature and outdoor temperature, produce the first time dispatch command of each heat exchange station;
According to the aperture of return water temperature adjustment backwater section door, to increase or to reduce heating load.
10. supply control method for heat as claimed in claim 10, it is characterized in that, also comprise: the temperature difference of the return water temperature between this heat exchange station more multiple, and according to the temperature difference of the return water temperature between this heat exchange station multiple, the internal circulating load of recycling water formulation, and then adjust the aperture of each backwater section door of each heat exchange station, to increase or to reduce heating load.
11. supply control method for heat as claimed in claim 10, it is characterized in that, internal circulating load=thermic load the ÷ [specific heat of water holds × (supply water temperature-return water temperature)] of recirculated water, internal circulating load as recirculated water increases, then increase the aperture of each backwater section door of each heat exchange station, internal circulating load as recirculated water reduces, then reduce the aperture of each backwater section door of each heat exchange station.
12. supply control method for heat as claimed in claim 10, it is characterized in that, backwater section door comprises: heat exchange station backwater section door, building backwater section door, unit backwater section door and room backwater section door;
Calculate the mean value of the respectively return water temperature of this heat exchange station, and the mean value of the return water temperature of each heat exchange station and this heat exchange station return water temperature is compared, return water temperature as this heat exchange station is greater than the mean value of this heat exchange station return water temperature, then reduce the aperture of this backwater section door, return water temperature as this heat exchange station is less than the mean value of each heat exchange station return water temperature, then increase this heat exchange station backwater section door aperture;
Calculate the mean value of the return water temperature of each building, and by respectively the return water temperature of this building and the mean value of this return water temperature compare, return water temperature as this building is greater than the mean value of this return water temperature, then reduce the aperture of this building backwater section door, return water temperature as this building is less than the mean value of this return water temperature, then increase the aperture of this building backwater section door;
Calculate the mean value of the respectively return water temperature of this unit, and the mean value of the return water temperature of each unit and the return water temperature of this unit is compared, return water temperature as this unit is greater than the mean value of the return water temperature of this unit, then reduce the aperture of this unit backwater section door, return water temperature as this unit is less than the mean value of the return water temperature of this unit, then increase the aperture of this unit backwater section door;
Calculate the mean value of the return water temperature in the room of each unit, and the mean value of the return water temperature in the return water temperature in the room of each unit and the room of this unit is compared, return water temperature as this room is greater than the mean value of the return water temperature in the room of this unit, then reduce the aperture of the backwater section door in this room, return water temperature as this room is less than the mean value of the return water temperature in the room of this unit, then increase the aperture of the backwater section door in this room.
13. supply control method for heat as claimed in claim 9, it is characterized in that, set a temperature on average, this temperature on average and a normal temperature compare, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the thermic load of this heat exchange station, and according to the thermic load of this heat exchange station, adjust the aperture of this backwater section door.
14. supply control method for heat as claimed in claim 9, is characterized in that, when the outdoor temperature of user often change ± 1 DEG C time, the aperture of adjustment backwater section door, to increase or to reduce heating load.
15. supply control method for heat as claimed in claim 9, is characterized in that, be divided into multiple time interval by one day, according to the difference of each time interval outdoor temperature, adjust the aperture of this backwater section door.
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| CN103925641B (en) * | 2014-04-28 | 2018-03-23 | 中国石油大学(华东) | A kind of heating network hydraulic equilibrium Automatic adjustment method |
| CN104360646A (en) * | 2014-09-23 | 2015-02-18 | 大唐长春热力有限责任公司 | Intelligent heat supply network monitoring system and operation method |
| CN104633765B (en) * | 2015-02-05 | 2017-05-03 | 张久明 | Energy-conservation control system and method |
| CN111288544B (en) * | 2020-04-13 | 2021-09-17 | 黑龙江思玛特能源科技有限公司 | Intelligent adjusting method and system for intelligent heat supply tail end valve |
| CN113685874A (en) * | 2021-09-07 | 2021-11-23 | 张晓菊 | Hot water supply system capable of automatically adjusting energy and method thereof |
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Effective date of registration: 20200617 Address after: 010030, the Inner Mongolia Autonomous Region, Hohhot Yuquan District Three West Ying Ying Road, building No. 1 Patentee after: Hohhot Kun Tai heat LLC Address before: 010020 Kuntai 1 building, sanliying street, Hohhot City, Inner Mongolia Autonomous Region Patentee before: Zhang Jiuming |