CN100360913C - Central heating diverse charging integration method and metering system thereof - Google Patents
Central heating diverse charging integration method and metering system thereof Download PDFInfo
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- CN100360913C CN100360913C CNB200410026273XA CN200410026273A CN100360913C CN 100360913 C CN100360913 C CN 100360913C CN B200410026273X A CNB200410026273X A CN B200410026273XA CN 200410026273 A CN200410026273 A CN 200410026273A CN 100360913 C CN100360913 C CN 100360913C
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Abstract
The present invention relates to an integrated method and a metering system for concentrated heating independent family charging. For overcoming the defects of high cost, large error, no capability for reflecting the energy of concentrated heating and heating effects existing in the prior art, the present invention determines the price u of unit effective heat according to the ratio of the operating cost Z of concentrated heating systems to total effective heat E consumed by users within time t and determines the heating expense Y[m, i] of each user according to the product of the effective heat consumed by users and the price of unit effective heat. The present invention has no need to change heating pipelines, is only provided with an outdoor temperature meter 7 in a concentrated heating area, is provided with a calorimeter 3 at the inlet of an m area and measures heating loads consumed by the i user in the m area through a calorimeter 9 or a heat distribution meter 6. The present invention organically integrates a heating load charging method and a heat distribution charging method, realizes mutually complementary advantages and defects of the two methods, introduces effective heat to reflect the energy quality of heating loads and the quality of heating effects and causes concentrated heating independent family charging to be scientific, economical and practical.
Description
(1) technical field under:
The present invention relates to a kind of central heating household cost allocation integrated approach and metering system.
(2) background technology
For the central heating household cost allocation, the method that adopts is to measure user's heating load at present, then according to the operating cost of central heating system, determines user's heat cost.Its computing formula is
u=Z/Q (2)
Y
i=u·Q
i (3)
In following formula (1), (2) and (3), Q is the heating load of all users in the heating period, Q
iBe the heating load to i user, u is the unit price of heating load, and Z is the operating cost of central heating system, Y
iThe heating cost of paying the heating period planted agent for i user.
In order to determine each user's heating cost, the crucial heating load that just is how to measure the user.Below be exactly two kinds of current methods measuring user's heating load:
(1) heating load determination method
This method is directly to measure user's heating load, promptly measures to enter the heat flow of hot water and for, return water temperature of user, is determined user's heating load by following formula
In the formula, Q
iBe i user's heating load, G
iFor entering i user's heating hot water flow, t is i user's a heating time, C
PBe hot water specific heat, T
i 1And T
i 2Be respectively the hot water temperature who enters and leave i user.
The measuring instrument that this method adopted is a calorimeter, and it is made up of a flowmeter and two temperature sensors.Flowmeter is used for measuring feed pipe or return pipe hot water flow, and two temperature sensors are used for measuring supply water temperature and return water temperature respectively.
(2) heat is distributed determination method
This method is at first measured the heat dissipation capacity of each heating radiator of user, promptly utilizes the funtcional relationship of spreader surface medial temperature and indoor temperature difference to determine the heat dissipation capacity of heating radiator
In the formula, q
iBe the heat dissipation capacity of all heating radiators of i user, α
I, kAnd F
I, kBe respectively the surface film thermal conductance and the surface area of i user k heating radiator, T
I, k wAnd T
I, k nBe respectively i user k spreader surface medial temperature and indoor temperature, t
kHeating duration for i user k heating radiator.
The measuring instrument that this method adopted is a Heat distribution meter, and it is made up of two temperature sensors, is used for measuring the average surface temperature and the indoor air temperature of heating radiator respectively.
Because formula (5) relates to the surface film thermal conductance α of each heating radiator
I, k, and the influence factor of this parameter is more, is difficult for accurately drawing.In order to eliminate the measuring error that causes thus, the normal employing in the porch of a heating area (both passed in and out this regional central heating pipeline and had only a feed pipe inlet and a return pipe outlet) is provided with a calorimeter, record the heating load that this zone consumes by calorimeter, and then distribute with this heating load to each user of this zone.The formula that each user's heat is distributed is
In the formula, Q
iBe the heating load of i user in the m heating area, q
iBe the heat dissipation capacity of all heating radiators of i user in the m heating area, Q
mHeating load for the m heating area.
In the method for above-mentioned two kinds of mensuration user heating loads, the advantage of heating load determination method is: principle is visual and understandable, can reach very high measuring accuracy in theory; For a user, the measurement instrument that is adopted just has only a calorimeter.Heat distributes the advantage of determination method to be: the Heat distribution meter that is adopted is easy for installation, and is cheap, and the price of a Heat distribution meter only is about 1/8th of a calorimeter price.
Distribute the determined user's heating load of determination method by above-mentioned heating load determination method or heat, combine with the operating cost of central heating system, promptly determine user's heating cost, just formed existing heating load charging method and heat distribution charging method according to formula (1), (2) and (3).But heating load charging method and heat distribute the charging method also to exist the defective of following four aspects:
1. the defective of heating load determination method is: the calorimeter that is adopted is installed complicated; Calorimeter then is subjected to water quality impact bigger if select the contact flowmeter for use, if select for use contactless flowmeter then to involve great expense; When hour, because that thermometric error will cause measuring the error of user's heating load will be bigger for, backwater temperature difference; Particularly the heating load determination method has very strict requirement to the heating confession of user, water return pipeline, i.e. each user's confession, water return pipeline must constitute an independent closed loop.
2. heat distributes the defective of determination method to be: compare with the heating load method, measuring error is big slightly; If a user has a plurality of heating radiators, each heating radiator all must be installed a Heat distribution meter, and this will cause the expense of the required Heat distribution meter of user bigger.
3. distributing in these two kinds of methods of charging method in heating load charging method and heat, all is to be the foundation that parameter is chargeed as user's heat supply with user's heating load.But this parameter of heating load but can not reflect the quality to user's heat supply, can not embody the possibility that the user heats and regulates.So adopt heating load to charge open defect is arranged as user's heat supply.
4. distribute in these two kinds of methods of charging method in heating load charging method and heat, all be with user's heating load foundation that to be parameter charge as user's heat supply, and this parameter of heating load can not reflect the quality of energy, can not be comprehensively and the operating cost that reflects the central heating thermal source exactly.So these two kinds of charging methods are unfavorable for promoting the raising and the active energy-saving run of user's awareness of saving energy.
(3) summary of the invention
Big for overcoming the cost height, the error that exist in the prior art, can't reflect the deficiency of heat supply quality to the present invention proposes a kind of central heating household cost allocation integrated approach and metering system.
The technical solution adopted in the present invention is: according to the operating cost Z of t central heating system in the time and the fiery ratio with E of total amount of heat of all users consumption, determine the price u of units of heat fire usefulness, u=Z/E wherein, the heat fire that consumes according to the user is used and the product of units of heat fire with price again, determines each user's heating cost Y
M, i, i.e. Y
M, i=uE
M, iE
M, iFor the heat fire that the m zone i user who adopts central heating is consumed is used.
The user is divided into several heating areas, and the criterion of defined area is that a plurality of users are arranged in the zone, and the heating pipeline in turnover zone has only a feed pipe inlet and a return pipe outlet.
The total amount of heat fire that all users consume with E is:
(1) when the feed pipe pipeline of each user heating in the zone and return pipe pipeline form the open loop pipe system (the heating and supplying water pipe that enters the user is more than one), the heat fire that each user of this zone is consumed is with being:
In the formula, Q
mBe the heating load of the central heating that the user consumed in m zone, Q
M, i, kAnd T
M, i, kBe respectively the heat dissipation capacity and the average surface temperature of m zone i user k heating radiator, T
m 1And T
m 2Be respectively the current temperature of m regional centralized heating and supplying water pipe and return pipe, T
0Outside atmosphere temperature for the m zone.
(2) when the pipeline of the pipeline of the feed pipe of each user in the zone and return pipe forms the closed loop pipe system (heating pipeline that passes in and out the user has only a feed pipe inlet and a return pipe outlet), the concentrated heat that each user of this zone is consumed is fiery with being:
In the formula, a is 1 or 0 structural type choice variable, represents to adopt calorimeter to measure i user's heating load when a is 1, represents to adopt Heat distribution meter to measure i user's heating load, Q when a is 0
mBe the heating load of the central heating that the user consumed in m zone, Q
M, iBe the heating load that the user in m zone consumes, T
m 1And T
m 2Be respectively the current temperature of m regional centralized heating and supplying water pipe and return pipe, T
M, i 1And T
M, i 2Be respectively the temperature of heating hot water, T into and out of m zone i user
0Outside atmosphere temperature for the m zone.
For realizing technical scheme of the present invention, in the central heating zone outdoor temperature table is set, be used for the outer atmospheric temperature of measuring cell.At m area entry place, a calorimeter is set is used for measuring heating load, heating hot water that this zone consumes and advances and go out this regional temperature.The heating load that m zone i user is consumed is measured, can be selected calorimeter or Heat distribution meter:, adopt Heat distribution meter to measure user's heating load (this moment, a was 0) if when the feed pipe pipeline of m zone i user's heating and return pipe pipeline form the open loop pipe system; When if m zone i user's feed pipe pipeline and return pipe pipeline form the closed loop pipe system, can select calorimeter or Heat distribution meter to measure user's heating load, only when the operating cost that adopts calorimeter during less than the operating cost of employing Heat distribution meter, a is 1.
When supply channel was open loop structure, the outdoor temperature table was installed in the outdoor of central heating zone; The zone calorimeter is installed on the feed pipe that enters the zone; User's Heat distribution meter is installed on each heating radiator of user.
When supply channel is closed loop configuration, the outdoor temperature table is installed in the outdoor of central heating zone, the zone calorimeter is installed on the feed pipe that enters the zone, operating cost according to calorimeter and Heat distribution meter, can select for use user's calorimeter to be installed on the feed pipe that enters the user, perhaps select for use Heat distribution meter to be installed on each heating radiator of user.
The method and system that the present invention proposes, be to distribute the charging method organically to integrate with heat the heating load method of chargeing to realize its relative merits complementation, and introduced the heat fire and be used for reflecting the energy quality of heating load and the quality of heating effect, thereby overcome the defective that exists in the prior art, make central heating household cost allocation method have more science, economy and practicality.The present invention need not change heat supplying pipeline, it only is the integrated approach that the measurement that increased an outdoor temperature can realize the central heating household cost allocation, and by the formed metering and billing of this method system, make it to reach the central heating charging principle of heating load with regard to paying the fees that can not only embody many consumption central heating scientificly, reasonably and accurately more, can also promote the raising of the energy-conservation thought of user, awareness of saving energy and environmental consciousness, become the guidance of action, and the foundation of science can be provided for the overall energy-conservation and environmental protection of central heating system.
(4) description of drawings:
Accompanying drawing 1 is the metering system of open loop pipeline central heating household cost allocation integrated approach
Accompanying drawing 2 is metering systems of closed loop pipeline central heating household cost allocation integrated approach
Wherein:
1-return pipe 2-feed pipe 3-zone calorimeter 4-flow control valve 5-open loop pipeline user
6-Heat distribution meter 7-outdoor temperature table 8-heating radiator 9-user calorimeter 10-closed loop pipeline user
(5) embodiment:
Now in conjunction with the accompanying drawings 1 and 2 couples of the present invention of accompanying drawing be further described:
Embodiment one
Present embodiment is an open loop pipeline central heating household cost allocation integrated system (accompanying drawing 1).
Present embodiment is by the user 5 of two open loop pipelines, each user's the indoor heating area of being made up of two heating radiators 8.In the present embodiment: in this zone an outdoor temperature table 7 is set, is used for the outer atmospheric temperature of measuring cell; On the feed pipe 2 of the porch in zone, a regional calorimeter 3 is set advances with heating load, the heating hot water of measuring this zone and being consumed and go out this regional temperature; User's Heat distribution meter 6 is installed on each heating radiator 8 of user.
In time, measure and note the heating load Q that the m zone is consumed at t by regional calorimeter 3
m, hot water advance/go out the zone temperature T
m 1With T
m 2Each user's Heat distribution meter 6 is measured and the heat dissipation capacity Q that notes each heating radiator 8 of this user
M, i, kWith average surface temperature T
M, i, kMeasure and note the outside atmosphere temperature T by outdoor temperature table 7
0The parameter information that the computing machine of central heating household cost allocation is noted by each table of network communication circuit collection draws the central heating heat fire usefulness that each user consumes according to following formula:
Following formula in the present embodiment, m=1, i=2, k=2.
Count the operating cost Z of t central heating system in the time by accounting, and be input in this computing machine, this computing machine draws the fiery price u with E and units of heat fire usefulness of total amount of heat that all users of central heating consume by following formula:
Following formula in the present embodiment, m=1.
This computing machine draws each user's central heating expense Y again by following formula
M, iAnd show, write down and keep:
Y
m,i=u·E
m,i
Embodiment two
Present embodiment is a closed loop pipeline central heating household cost allocation integrated system (accompanying drawing 2).
Present embodiment is by the user 10 of two heating pipeline closed loops, each user's the indoor heating area of being made up of two convectors 8.In the present embodiment: in this zone an outdoor temperature table 7 is set, is used for the outer atmospheric temperature of measuring cell; On the feed pipe 2 at area entry place, a regional calorimeter 3 is installed is advanced with heating load, the heating hot water of measuring this zone and being consumed and go out this regional temperature.According to the design feature of user for, water return pipeline, one of them user has selected for use user's calorimeter 9 to advance with heating load, the heating hot water of measuring this user and being consumed and has gone out this user's temperature; Another user has selected for use Heat distribution meter 6 to measure the heat dissipation capacity and the average surface temperature of each heating radiator 8 of this user.User's calorimeter 9 is installed on the feed pipe that enters the user, and user's Heat distribution meter 6 is installed on each heating radiator 8 of user.
In time, measure and note the heating load Q that the m zone is consumed at t by regional calorimeter A
m, hot water advances/goes out the temperature T in m zone
m 1With T
m 2Analyze by calorimeter and Heat distribution meter operating cost, a user's calorimeter 9 is measured and is noted the heating load Q that this user consumes
M, i, central heating hot water advances/goes out this user's temperature T
M, i 1And T
M, i 2Another user's Heat distribution meter 6 is measured and the heat dissipation capacity Q that notes each heating radiator 8 of this user
M, i, kWith average surface temperature T
M, i, kMeasure and note the outside atmosphere temperature T by outdoor temperature table 7
0The parameter information that the computing machine of central heating household cost allocation is write down by each table of network communication circuit collection calculates the heat fire usefulness that each user consumes according to following formula:
Following formula in the present embodiment, m=1, i=2, k=2, a=1 when i=1, a=0 when i=2.
Count the operating cost Z of t central heating system in the time by accounting, and be input in this computing machine, draw the fiery price u of total amount of heat that all users consume with E and units of heat fire usefulness:
Following formula in the present embodiment, m=1.
Each user's central heating expense Y
M, i:
Y
m,i=u·E
m,i
The foundation that the present invention proposes is:
The heating load Q that the central heating thermal source is provided, the electric energy E that it can be exchanged in theory
d(high-grade energy) is
In the formula, T is the pairing temperature of heating load Q, T
0Be the outside atmosphere temperature.
This shows that identical heating load Q owing to pairing temperature T difference, can be exchanged into the quantity E of electric energy
dAlso different, thus the economy of generating is also just different.Moreover, identical heating load Q, along with the rising of the corresponding temperature T of institute, the operating cost of central heating thermal source also will correspondingly raise.The energy reason that should embody by quantity and two aspects of quality why that Here it is.The quality of heat is directly related with pairing temperature.On the other hand, identical heating load Q, if pairing temperature difference, the effect of heating is also different.When the pairing temperature of heating load is low, just can not play the effect of heating.This shows that temperature can reflect the quality of heating effect.Introduce the heat fire and not only can reflect heating load, can embody the quality of this energy of heating load and the quality of heating effect again with this parameter.
The user who adopts central heating is divided into several heating areas.At m area entry place, a calorimeter 3 is set and measures the heating load Q that the m zone is consumed
m, the heat fire E that consumed of m zone then
mAccording to formula (7) just be
In the formula, T
m 1And T
m 2Be respectively hot water and advance/go out the temperature in m zone, T
0Be the outside atmosphere temperature.
Concerning the i user of m zone, the heat fire E that it consumed
M, iAccording to formula (7), draw:
In the formula, Q
M, iBe the heating load that m zone i user is consumed, T
0Be the outside atmosphere temperature,
Medial temperature for m zone i user's convector.
Concerning all users, the total amount of heat fire that is consumed with E is
Be located at t in the time, the operating cost of central heating system is Z, and during this period of time the total amount of heat of all users' consumption is fiery with being E, and then the price u of units of heat fire usefulness just is
The heating cost Y that m zone i user pays t time planted agent
M, iFor
Y
m,i=u·E
m,i (12)
Owing to determine the heating cost Y that m zone i user pays t time planted agent
M, i, need to determine earlier the heat fire E that i user is consumed
M, iAccording to formula (9) as can be known, heat fire E
M, iNeed by measuring m zone i user's heating load Q
M, iDetermine.The confession heating as if m zone i user, the structure that water return pipeline does not constitute closed loop then can only adopt Heat distribution meter to measure its heating load Q to i user
M, iIf heating confession, the water return pipeline of m zone i user constituted the structure of closed loop, can adopt calorimeter or Heat distribution meter to measure.But adopt different assay methods, its economy is different.This can compare by the operating cost of two kinds of assay methods, judges and should select which kind of assay method for use.
Because the relative error to a district heating measurement amount is less than the relative error that user's heating load is measured, and adopts calorimeter or Heat distribution meter to measure each user's heating load, have different relative merits.Distribute determination method to integrate heating load determination method and heat, can make their relative merits complementation.In conjunction with the economy of two kinds of measuring methods, come the heating load of each user in the zone is distributed again, can develop into the heat fire that is consumed with the zone thus and be used for the heat fire that each user was consumed in the range of distribution and use with the district heating amount.Like this, the heat fire E that m zone i user is consumed
M, i, according to formula (9), its particular content just is
In the formula, a is 1 or 0 structural type choice variable, Q
M, iBe the heating load that m zone i user consumes, T
M, i 1And T
M, i 2Be respectively the temperature of hot water, Q into and out of m zone i user
M, i, kAnd T
M, i, kBe respectively the heat dissipation capacity and the average surface temperature of m zone i user k heating radiator.
Claims (5)
1. central heating household cost allocation integrated approach is characterized in that: the total amount of heat fire that consumes according to all users of operating cost Z and central heating of t central heating system in the time determines that with the ratio of E the price u of units of heat fire usefulness is
Wherein E is:
In the formula, E
mBe the central heating heat fire usefulness that the m zone consumes, T
m 1And T
m 2Be respectively the temperature of central heating hot water, Q into and out of the m zone
mBe the heating load of the regional central heating that consumes of m, T
0Outside atmosphere temperature for the m zone;
The heat fire that consumes according to the user is used and the product of units of heat fire with price again, determines each user's central heating expense Y
M, i, i.e. Y
M, i=uE
M, i, E wherein
M, iFor the central heating heat fire that the m zone i user who adopts central heating is consumed is used.
2. the integrated approach of central heating household cost allocation according to claim 1 when the pipeline of the pipeline of the feed pipe (2) of each user in the zone and return pipe (1) forms open loop, is characterized in that:
The central heating heat fire that each user of this zone is consumed is with being:
In the formula, Q
mBe the heating load of the central heating that the user consumed in m zone, Q
M, i, kAnd T
M, i, kBe respectively the heat dissipation capacity and the average surface temperature of m zone i user k heating radiator, T
m 1And T
m 2Be respectively the current temperature of m regional centralized heating and supplying water pipe and return pipe, T
0Outside atmosphere temperature for the m zone.
3. a kind of according to claim 1 integrated approach of central heating household cost allocation when the pipeline of the pipeline of the feed pipe (2) of each user in the zone and return pipe (1) forms closed loop, is characterized in that:
The central heating heat fire that each user of this zone is consumed is with being:
In the formula, a is 1 or 0 structural type choice variable, represents to adopt calorimeter to measure i user's heating load when a is 1, represents to adopt Heat distribution meter to measure i user's heating load, Q when a is 0
mBe the heating load of the central heating that the user consumed in m zone, Q
M, iBe the central heating amount that m zone i user consumes, T
m 1And T
m 2Be respectively the current temperature of m regional centralized heating and supplying water pipe and return pipe, T
M, i 1And T
M, i 2Be respectively the temperature of heating hot water, T into and out of m zone i user
0Outside atmosphere temperature for the m zone.
4. a metering system of realizing the described central heating household cost allocation of claim 1 integrated approach comprises regional calorimeter (3) and data handling system, can be used for open loop pipeline user (5) and closed loop pipeline user (10), it is characterized in that:
A. when the pipeline of the pipeline of feed pipe (2) and return pipe (1) formed open loop, this metering system also included outdoor temperature table (7) and Heat distribution meter (6);
B. when the pipeline of the pipeline of feed pipe (2) and return pipe (1) formed closed loop, this metering system also included outdoor temperature table (7), user's Heat distribution meter (6) or user's calorimeter (9).
5. as the metering system of central heating household cost allocation integrated approach as described in the claim 4, it is characterized in that: outdoor temperature table (7) is installed in the outdoor of central heating zone; Zone calorimeter (3) is installed on the feed pipe that enters the zone; User's calorimeter (9) is installed on the feed pipe that enters the user; User's Heat distribution meter (6) is installed on each heating radiator (8) of user.
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100430704C (en) * | 2005-02-21 | 2008-11-05 | 西北工业大学 | Heat metering method for open-ring central heating system |
CN101290252B (en) * | 2007-04-16 | 2010-09-08 | 北京众力德邦智能机电科技有限公司 | User heating caloric metering system |
CN101922944B (en) * | 2009-06-11 | 2012-03-21 | 林秀麟 | Heating fee allocation method based on heating time/area of user |
CN101936578B (en) * | 2010-09-09 | 2012-07-25 | 河南众源***工程有限公司 | Real-time effective area distribution method for heat energy |
CN101975628B (en) * | 2010-09-09 | 2011-12-28 | 河南众源***工程有限公司 | Real-time effective heat power distribution method |
CN109163823B (en) * | 2018-10-17 | 2021-02-12 | 京源中科科技股份有限公司 | Household heat metering device |
CN112330885A (en) * | 2020-10-09 | 2021-02-05 | 广东美的暖通设备有限公司 | Central air conditioner charging method, system, charging management equipment and storage medium |
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