CN101975416A - Method and device for improving accuracy and energy-saving efficiency of 'on-off time-area process' heat allocation system - Google Patents
Method and device for improving accuracy and energy-saving efficiency of 'on-off time-area process' heat allocation system Download PDFInfo
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Abstract
The invention provides a method and a device for improving the accuracy and energy-saving efficiency of an 'on-off time-area process' heat allocation system. The device comprises total heat supply metering devices arranged in building heat supply pipes and room temperature controllers and electrical heat balance flow regulating devices which are installed by heat supply users respectively, wherein the room temperature controllers are arranged at reference positions in heating areas of the users; and the electrical heat balance flow regulating devices comprises on-off control valves which are arranged in house branch heat supply pipes of the users. The room temperature controllers monitor indoor temperatures, and the electrical heat balance flow regulating devices control the flows in the heat supply pipes and the opening and closing of the heat supply pipes, and calculate and store the total opening time length of on-off control valves.
Description
Technical field
The present invention relates to the HVAC technical field, particularly relate to the method and the device thereof of the make-and-break time area-method that a kind of central heating system heating heat shares.
Background technology
Along with country's constantly perfect to improving constantly of requiring of building energy conservation and heating charge system, Ministry of Construction's promulgation and also having issued in " the heat metering technical regulation JCJ173-2009 " of execution on July 1 in 2009 comprises direct metering and various heat measuring methods of metering indirectly.
The most conventional calorimeter method has all polymorphic types such as mechanical type calorimeter, electromagnetic type calorimeter, ultrasonic type calorimeter.Wherein, the initial cost of mechanical type calorimeter is low, but the flow measurement precision is not high, and the table resistance is big, easy to be blocked, and consumable accessory is more, therefore water quality is had certain requirement.The flow measurement precision height of electromagnetic type calorimeter, ultrasonic type calorimeter, little, the difficult obstruction of crushing, but initial cost is very high.Key is that calorimeter all needs to combine the complete system that is combined into radiator thermostat valve, and the structure of its high-drag almost can't realize normal operation for the system that heat supply is transformed; For the clearing of heat expense, no matter be adopt the family with calorimeter directly measure clearing or according to the family with the hotlist value again row share the clearing of total amount of heat, the investment height of family table or fault rate height (the bad easy obstruction of water treatment, instrument moving component are difficult to satisfy the long environment for use of heating system water temperature height, working time etc.); Another angle, the calorimeter accurate measurement is the same with inaccurate metering result---all can't link directly with charge.This also is an important thorny problem carrying out the heat metering in recent years in engineering practice.
" heat metering technical regulation JCJ173-2009 " recommended user's heat sharing metering method of a kind of " make-and-break time area-method ".This method is that each the heating user when adopting on/off formula heat supply control model (Q formula system) is a foundation accumulative total water flowing time, share whole building and heating heat consumption in conjunction with heating area, thereby calculate each hot user's heating heat consumption, and carry out hot meterage.Get final product the turn-on time that each family on-off control valve only need be added up and write down to heat metering (heat is shared) device that matches with the method, compared with calorimeter with former other kinds family, and this device need not be measured the flow of heat donor fluid again.More existing at present heat metering (sharing) devices based on " make-and-break time area-method ", and in engineering, obtain practical application.But in actual engineering was used, also there were many problems that are difficult to solve and overcome in above-mentioned heat metering (sharing) device based on " make-and-break time area-method ", and failed really fairly and reasonably to share heat.
Problem comprises: 1, the present hot sharing device of on-off type all can not be tackled the characteristics of domestic heat supply " large time delay " system, has caused that to share heat inaccurate, unreasonable, and its heat is shared and the heat expense is taken over error and can not be accepted by hot user.2, the heating system of actual motion can be regulated the flow of a building by a building balanced valve of setting up, and realize changing by climate compensator and regulate supply water temperature according to outside air temperature, the actual usefulness of hot user heat what this will directly affect, but the hot sharing device of present on-off type all can not reflect the difference of user's heat consumption under this situation.What 3, at present indoor system still adopted is design result under the continuous heat supply working condition, and under the heat supply operating mode of switching regulate mode, lectotype selection and the irrational problem of design load coupling will inevitably occur, thereby bring hot user's equal area uniform temp to cause the unjust phenomenon of different expenses because of diverse location.
Summary of the invention
The objective of the invention is to solve " make-and-break time area-method " heat and share system's problems of the prior art, provide a kind of improvement, raising heating system " make-and-break time area-method " heat to share systems approach and device thereof.By adopting the method that limits hot user's heat supply flow (standard is appraised and decided flow) to improve the energy-saving efficiency that this heat is shared system, and algorithm and the device of realizing the heat modification method be provided, with meet building and heating branch family heat metering (sharing), by the actual requirement of heating heat consumption meterage.
Technical scheme of the present invention is as follows:
A kind of raising " make-and-break time area-method " heat is shared the method for system accuracy and energy-saving efficiency, is included on building total heat supply pipeline thermal gauge is set, to measure this building heat summation that all users use; And on registering one's residence pipeline in the user heating system break-make actuating unit is set, and in the user heating zone, select exemplary position that temperature control equipment is set, described temperature control equipment is monitored indoor temperature in real time, and the temperature of indoor temperature and setting compared, and send instruction to the break-make actuating unit according to comparative result, the feasible heat supply pipeline of registering one's residence is carried out " leading to " or " breaking " state, described break-make actuating unit all links to each other with a time set with temperature control equipment, the time length overall that time set record break-make actuating unit " leads to " state; Gather the heating area and the heat supply duration of this building all heat supply users, according to the following equation the hot amortization ratio of accurate metering user i.
Wherein: qi: share heat (kw.h) to i user
Qz: the total amount of heat (kw.h) of a building calorimeter metering
Ti:i user's metering correction factor
Hi:i user's accumulative total is used the time (h) of heat
Fi:i user's area of heat-supply service (m
2)
A kind of raising " make-and-break time area-method " heat is shared the device of system accuracy and energy-saving efficiency, comprise the heat supply total amount metering device that is arranged at a building heat supply pipeline, it is characterized in that: also comprise the room thermostat that each heat supply user is installed respectively, electronic thermal balance flow regulator, wherein room thermostat is installed on the reference position in the user heating zone, electronic thermal balance flow regulator comprises on the hot duct of registering one's residence that is arranged at the user, room thermostat monitoring indoor temperature, and flow and keying by electronic thermal balance flow regulator control heat supply pipeline, and calculate and total duration of the conducting of storage on-off control valve.
Described room thermostat is a Programmable Logic Controller, comprises power module, calculates memory module, communication module, transformation module, LCD.
Described room thermostat inside is provided with temperature-sensing probe and communication module, detecting the temperature data of position, and by the form of M-BUS or RS-485 or wireless transmission transfer of data is gone out.
Described room thermostat can be divided into the some time section with one day on demand, and the temperature of each time period can be preset, and also can select input to determine by the user.
Described electronic thermal balance flow regulator comprise be arranged on the pipeline flow control valve, the Vidacare corp of by-pass valve control break-make is installed on the described flow control valve.
Connection comprises power line and encrypts control line between described Vidacare corp and the room thermostat, encrypts control line and can prevent user's malice outage robber heat.
The device that described raising " make-and-break time area-method " heat is shared system accuracy and energy-saving efficiency also comprises the heat correcting module, described heat correcting module can be according to actual heat transfer coefficient of the parameter measuring and calculating of the user's of reality measuring and calculating heating equipment and the heat dissipation capacity under the standard condition, and the heating time of being gathered is revised.
Described heat correcting module comprises toll administration module, card reader, communication concentrator, communications receiving equipment, data wire, connection, system power supply.
Described toll administration module also comprises the toll administration module, described toll administration module comprises data concentrator, communication apparatus and power supply and controller, described toll administration module sends to the conducting duration and uses the heat flow data in order to receive, to store, to send each user, and this building heat supply total amount of heat data.
Technique effect of the present invention is:
A kind of raising " make-and-break time area-method " heat that the present invention proposes is shared the method for energy saving of system efficient, the valve that possesses the flow set function on entering the mouth total feed pipe, is installed each household, install on the valve and have break-make control function Vidacare corp, be used to regulate the switch value of this family compensation flap, and this user is revised the opening time by reality measuring and calculating and program management, simultaneously in conjunction with the room thermostat of monitoring room temperature in real time, on-off control valve door unlatching to hot user is controlled than (heat sharing ratio), improves the energy-saving efficiency of hot user heating and accuracy and the fair and reasonable property that heat is shared.
Metered flow by presetting hot user and according to special-purpose modified computing formulae, the on-off control valve opening time to hot user is revised, and then correction user heat sharing value, to overcome problems of the prior art, can realize that heat sharing is fairer and more reasonable on the one hand, reach the purpose of the energy-saving efficiency that improves hot user heating on the other hand.
The present invention integrates the control of balance adjustment, room temperature, heat is shared, and convenient and reliable operation is installed simple, life-span is long, and cost is low, can improve the fairness of energy saving of system efficient and heat sharing greatly, easy to utilize, have remarkable economic efficiency and social value.
Description of drawings
Figure 1 shows that technical schematic diagram of the present invention;
Figure 2 shows that circuit block diagram of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, raising of the present invention " make-and-break time area-method " heat is shared the device (hereinafter to be referred as device) of energy saving of system efficient, comprises being installed in the indoor indoor temperature controller 7 with communication function, electronic thermal balance flow regulator 3, collector 4, toll administration module 8.Preestablish requirement that certain flow reaches balance heating by electronic thermal balance flow regulator 3 and carry out preliminary energy-conservation of technology, and indoor temperature controller 7 carries out the room temperature control in second step and reaches the behavior secondary energy-saving of thinking.That the control section of temperature controller 7 and electronic thermal balance flow regulator 3 is that the break-make actuator carries out is wireless, wire communication transmits signal.Room thermostat 7 and Lou Dong calorimeter 2 can also transfer to signal by the communication module of self on the computer that toll administration module 8 is installed of administrative department and carry out heat sharing.
As shown in Figure 2, raising of the present invention " make-and-break time area-method " heat is shared the method for energy saving of system efficient and the structure and the circuit connecting relation of device thereof, room thermostat 7 adopts indoor temperature controller able to programme, can be on demand being divided into 4～8 time periods in one day 24 hours, set the temperature of each time period respectively, the temperature compiled program of each time period and setting is stored in the chip of controller and is uploaded to toll administration module 8 and carry out the data storage, analyze.The user also can be according to the temperature of needs section access time of oneself.Electronic thermal balance flow regulator 3 adopts the flow control valve of motorized motions, and valve is loaded on the changes in flow rate that supplies water when taking over upward with balance heat supply person in charge break-make.
Its operation principle is: the building calorimeter 2 that the conduct clearing foundation that has communication function is installed at the consumer heat inlet place of building measures the total amount of heat in building.Each hot user's of this building indoor heating datum location installation room temperature controller 7, the heating system that electronic thermal balance flow regulator 3 is installed in resident family is registered one's residence on the pipeline.Hot user can set the size of electronic thermal balance flow regulator 3 flows to reach basic heat supply requirement of balance according to the actual floor area of building and actual hot consumption, need to set the temperature of room thermostat 7 simultaneously, then electronic thermal balance flow regulator 3 controlled valve under the control of room thermostat 7.For example working as room temperature reaches more than the required design temperature, house temperature and setting value that room thermostat 7 records it automatically compare, reach setting value as room temperature, room thermostat 7 sends signal by the room temperature control circuit to electronic thermal balance flow regulator 3, electronic thermal balance flow regulator 3 drives flow control valve and cuts out heat supplying pipeline, stop heat supply, room thermostat 7 stops the accumulative total heating time simultaneously; On the contrary, be lower than setting value as room temperature, room thermostat 7 makes pipeline open, and the beginning heat supply begins the accumulative total heating time simultaneously.The user can be voluntarily according to the time period difference design temperature of every day with heat, to save heat energy, to save hot expense.When needing higher temperature, can heighten the design temperature of room thermostat 7, satisfy the demands as the user.The design temperature of room thermostat 7 can be regulated at any time on demand easily, reaches the requirement that the user is initiatively taken with heat, energy savings, saving heat as required.Room thermostat 7 can also be divided into 4～8 time periods to one day on demand, sets the temperature of each time period respectively, and room thermostat 7 will be controlled electronic thermal balance flow regulator 3 automatically and open and close flow control valve, reach energy savings to a greater extent.
Toll administration module 8 can be stored the heat supply data in a plurality of heating seasons automatically.Simultaneously can calculate and store the user uses in this heating season turn-on time and turn-off time, and carry out break-make control, can also formulate suitable energy-conservation heat supply scheme for heating management department according to user's design temperature.
With reference to Fig. 1, the wastage in bulk or weight heat of a building calorimeter 2 these building of metering is installed at the consumer heat inlet place of certain building, the foundation of sharing as heating charge secondary heat, simultaneously data upload to toll administration module 8; Simultaneously at each hot user's consumer heat inlet place electronic thermal balance flow regulator 3 is installed, installation room temperature controller 7 in the room.To be room thermostat 7 be transferred to the break-make of electronic thermal balance flow regulator 3 by-pass valve controls and the time of calculating, storing and uploading valve opening to control signal according to the situation of the hot consumption of reality to its control strategy; Heating finishes each user of back according to these data and corresponding area of heat-supply service information, the total amount of heat of sharing a building calorimeter 2, and toll administration module 8 calculates corresponding hot expense simultaneously.Concrete computing formula is following sees formula (1)
q
i: share heat (kw.h) to i user
Q
z: the total amount of heat (kw.h) of a building calorimeter metering
Ti:i user's metering correction factor
Hi:i user's accumulative total is used the time (h) of heat
Fi:i user's area of heat-supply service (m
2)
In summary, the present invention can effectively solve the following problem that exists in " make-and-break time area-method " heat measuring method at present:
1, when the user changes the heating radiator capacity privately, go to share the entire building total amount of heat as still only adding up turn-on time with each household, it is big with heat above resident family's reality of designing requirement those radiator areas then can to occur, and shares few, the few unjust phenomenon of paying the fees of heat.
2, because of increasing metering system original constant flow water system is changed over the unbalance problem of pipe network that variable flow system causes.
2, because of heating system be the Large-lag System of " big the temperature difference, low discharge ", often bigger than normal and room temperature that cause is difficult to control and has caused heat is shared inaccurate problem during general design discharge.
3, the indoor heating system that designs by the continuous heat supply operating mode, the heat dissipation equipment area the unreasonable problem of coupling can occur with the design load, and particularly for the resident family of the equal construction area that is in unfavorable position, this problem is even more serious.And go to share total amount of heat by preestablish the disconnected control that works again behind the different flows according to different positions in this device, can improve greatly then that the unfavorable position user too much shares heat, the too much unjust phenomenon of paying the fees.
4, by the room thermostat communication module, the user can set the heating state easily; According to hot user's concrete needs, temperature, heating time, the valve start-stop of gathering heating room at any time compare etc., can realize that online detection, real-time monitoring, energy savings and justice share functions such as heat cost.
5, this device convenient and reliable operation is installed simply, and the life-span is long, and cost is low, can improve the fairness of energy saving of system efficient and heat sharing greatly, is convenient to promote.
6, integrate the control of balance adjustment, room temperature, heat is shared, system forms simple, and is easy to use.
Claims (10)
1. a raising " make-and-break time area-method " heat is shared the method for system accuracy and energy-saving efficiency, it is characterized in that: be included on building total heat supply pipeline thermal gauge is set, to measure this building heat summation that all users use; And on registering one's residence pipeline in the user heating system break-make actuating unit is set, and in the user heating zone, select exemplary position that temperature control equipment is set, described temperature control equipment is monitored indoor temperature in real time, and the temperature of indoor temperature and setting compared, and send instruction to the break-make actuating unit according to comparative result, the feasible heat supply pipeline of registering one's residence is carried out " leading to " or " breaking " state, described break-make actuating unit all links to each other with a time set with temperature control equipment, the time length overall that time set record break-make actuating unit " leads to " state; Gather the heating area and the heat supply duration of this building all heat supply users, according to the following equation the hot amortization ratio of accurate metering user i.
Wherein: qi: share heat (kw.h) to i user
Qz: the total amount of heat (kw.h) of a building calorimeter metering
Ti:i user's metering correction factor
Hi:i user's accumulative total is used the time (h) of heat
Fi:i user's area of heat-supply service (m
2)
2. a raising " make-and-break time area-method " heat is shared the device of system accuracy and energy-saving efficiency, comprise the heat supply total amount metering device that is arranged at a building heat supply pipeline, it is characterized in that: also comprise the room thermostat that each heat supply user is installed respectively, electronic thermal balance flow regulator, wherein room thermostat is installed on the reference position in the user heating zone, electronic thermal balance flow regulator comprises on the hot duct of registering one's residence that is arranged at the user, room thermostat monitoring indoor temperature, and flow and keying by electronic thermal balance flow regulator control heat supply pipeline, and calculate and total duration of the conducting of storage on-off control valve.
3. device as claimed in claim 2 is characterized in that: described room thermostat is a Programmable Logic Controller, comprises power module, calculates memory module, communication module, transformation module, LCD.
4. device as claimed in claim 3 is characterized in that: described room thermostat inside is provided with temperature-sensing probe and communication module, detecting the temperature data of position, and by the form of M-BUS or RS-485 or wireless transmission transfer of data is gone out.
5. device as claimed in claim 4 is characterized in that: described room thermostat can be divided into the some time section with one day on demand, and the temperature of each time period can be preset, and also can select input to determine by the user.
6. device as claimed in claim 5 is characterized in that: described electronic thermal balance flow regulator comprise be arranged on the pipeline flow control valve, the Vidacare corp of by-pass valve control break-make is installed on the described flow control valve.
7. device as claimed in claim 6 is characterized in that: connection comprises power line and encrypts control line between described Vidacare corp and the room thermostat, encrypts control line and can prevent user's malice outage robber heat.
8. device as claimed in claim 1, it is characterized in that: also comprise the heat correcting module, described heat correcting module can be according to actual heat transfer coefficient of the parameter measuring and calculating of the user's of reality measuring and calculating heating equipment and the heat dissipation capacity under the standard condition, and the heating time of being gathered is revised.
9. device as claimed in claim 8 is characterized in that: described heat correcting module comprises toll administration module, card reader, communication concentrator, communications receiving equipment, data wire, connection, system power supply.
10. device as claimed in claim 9, it is characterized in that: described toll administration module also comprises the toll administration module, described toll administration module comprises data concentrator, communication apparatus and power supply and controller, described toll administration module sends to the conducting duration and uses the heat flow data in order to receive, to store, to send each user, and this building heat supply total amount of heat data.
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| CN102331316A (en) * | 2011-05-20 | 2012-01-25 | 欧文托普阀门系统(北京)有限公司 | Static balance type dual-source type time on/off area heat metering system and method |
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