CN103557556B - The heat sharing method and system of the central heating system under a kind of switching regulate mode - Google Patents

Abstract

The present invention relates to the central heating system heat sharing method and system under a kind of switching regulate mode.Described heat sharing method carries out the metering of Heat Loss amount, by the user indoor temperature measured in real time and outdoor temperature, according to built-in dedicated computing method, each family valve opening dutycycle is revised, and then calculate each family by revised each family valve opening dutycycle and share heat.Described heat allocation system comprises indoor information acquisition module, break-make control module, information gathering and allocation module, outdoor informational acquisition module, wherein indoor information acquisition module is used for measuring indoor temperature, outdoor informational acquisition module is used for measuring outdoor temperature, the indoor temperature that break-make control module is fed back according to indoor information acquisition module carries out break-make control to valve, outdoor informational acquisition module sends the outdoor temperature collected to information gathering and allocation module, and information gathering and allocation module carry out heat sharing according to method of the present invention.

Description

The heat sharing method and system of the central heating system under a kind of switching regulate mode

Technical field

The present invention relates to a kind of based on the hot methodology of the central heating system under switching regulate mode, belong to field of heating ventilation air conditioning.

Background technology

" heating modes " that be core with " point family regulates " and " meterage " is the important component part of China's Building Energy-saving Work, promulgated by the Ministry of Construction and " heat metering technical regulation JCJ173 ?2009 " and the Chinese patent " a kind of method and system thereof simultaneously realizing thermal conditioning and heat death theory " (application number 200610114686.2 applying date 2006.11.21) of execution in 1 day July in 2009, give user's heat sharing metering method of one " make-and-break time area-method ".The method controls to reach the object controlling room temperature by carrying out break-make to user heating recirculated water, simultaneously add up time of valve opening and heating area for foundation with each heating user, share whole building and heating heat consumption, and charge by heat, the service time of each user's on-off control valve only need be added up and record to the heat measuring system matched with the method.But practical engineering application finds, above-mentionedly add up according to valve " the make-and-break time area-method " that opening time and heating area share heat, also there is the more problem not yet solving or overcome at present, comprising:

(1) user's private changes radiator or fansink designs precision can cause heat sharing unreasonable not.The rational prerequisite of " make-and-break time area-method " heat sharing is that the real area of radiator is mated completely with demand area, and actual state is the error that one side design itself unavoidably also exists to a certain degree, the phenomenon that user's private changes on the other hand, private increases radiator is general, the heat causing radiator area user bigger than normal to share thus is on the low side, thus underpays hot expense; Otherwise, radiator area user less than normal will share heat more, pay hot expense, irrational phenomenon of this objective reality causes adding up according to valve " make-and-break time area-method " that opening time and heating area share heat and can not be easily accepted by a user completely, applies and is restricted more.

(2) difference of user's actual flow and design discharge can cause heat sharing unreasonable." make-and-break time area-method " heat sharing reasonably another prerequisite is that user's actual flow needs to mate completely with demand volume, and actual state is the error that one side design itself unavoidably also exists to a certain degree, be difficult to accomplish that design discharge is exactly demand volume, on the other hand because heat user itself exists geneogenous imbalance, need artificial installing regulating system additional and carry out meticulous manual adjustment, " make-and-break time method " just can be made to meet good required precision, and this same being difficult in Practical Project realizes, the customer flow often had is more than demand, some customer flows are fewer than demand, the heat that the many users of flow will be caused to share is on the low side, the heat that the user that flow is few shares is on the high side, can make to add up opening time and heating area according to valve equally to share heat " make-and-break time area-method " and can not be easily accepted by a user, apply and be restricted.

(3) in actual moving process, the user of higher room temperature can be conducted heat to the adjacent room of lower room temperature, cause will increasing during the normal heating in family near high room temperature user valve opening time, shared heat more, also can make to add up opening time and heating area according to valve and share heat " make-and-break time area-method " if what this unreasonable situation caused differ greatly and can not be easily accepted by a user, apply and be restricted.

In view of the above problems, Chinese patent " a kind of heat sharing metering method of central heating and system " (application number 200910069672.7, applying date 2009.7.9) propose a kind of method adopting heat user supply and return water temperature to correct " make-and-break time area-method ", wish to improve the hot degree of accuracy of sharing metering, but the method fundamentally can not solve the problems referred to above that " make-and-break time area-method " exists.As previously mentioned, why " the make-and-break time area-method " of carrying out heat sharing according to valve opening time and heating area will be revised, and its main cause has: 1) user's actual radiator area and demand exist deviation; 2) there is deviation in user's actual cycle flow and demand; 3) between neighboring user because housing heat-transfer can influence each other.First, Chinese patent " a kind of heat sharing metering method of central heating and system " (application number 200910069672.7, applying date 2009.7.9) formula (1) of correction valve opening time ratio that proposes there will be inconsistent correction for the problems referred to above, such as when radiator area is excessive or flow is excessive, user's valve opening time all can shorten, the heat that user shares all can be on the low side, and valve opening time all needs to be multiplied by the number being greater than 1.And it is different for the change direction of both of these case return water temperature.Based on common practise, when radiator area is bigger than normal, the certain step-down of return water temperature, and when flow is excessive, return water temperature necessarily uprises, supply and return water temperature is designed the same under both of these case, actual temperature of supply water is all the same, according to Chinese patent " a kind of heat sharing metering method of central heating and system " (application number 200910069672.7, applying date 2009.7.9) formula (1) that proposes revises, no matter a, b, c tri-parameters how value, can see from correction formula (1), valve opening time is a past large correction necessarily, one toward little correction, namely, reduce the radiator area deviation brought bigger than normal, just will inevitably the amplified flow deviation brought bigger than normal, reduce the flow deviation brought bigger than normal and then will inevitably amplify the deviation that radiator area brings, lose the meaning of correction.

Secondly, Chinese patent " a kind of heat sharing metering method of central heating and system " (application number 200910069672.7, applying date 2009.7.9) formula (1) that the proposes major parameter that carries out revising is actual measurement supply and return water temperature, but when changes in flow rate becomes Spline smoothing from consecutive variations, supply and return water temperature can not reflect the change of user's heat amount.Owing to adopting on-off valve regulation, an astable transient process is there is in valve by being opened to steady flow, the supply and return water temperature surveyed is actually the temperature of stagnant water in pipeline, its height depends mainly on the pipe insulation situation of water temperature measuring point in air themperature in pipe well and pipe well, the use thermal change of user can not be reflected, therefore, " make-and-break time area-method " Problems existing can not be overcome in theory.

Chinese patent " a kind of method and system thereof improving " make-and-break time area-method " hot apportion system accuracy and energy-saving efficiency " (application number: 2010105490899, applying date 2010.11.18) in be referred to heat and share correcting module, according to the heat dissipation capacity that reality is calculated user heating equipment parameter and then calculated under actual heat transfer coefficient and standard condition, and gathered heating time is revised.But how patent not mentioned " user measures correction factor " that it is introduced calculate, therefore in this part not referential of heat sharing correction.

To sum up, add up according to valve " the make-and-break time area-method " that opening time and heating area share heat, also there is the more problem not yet solving or overcome at present.

Summary of the invention

For " make-and-break time area-method " the deficiencies in the prior art, the present invention proposes a kind of based on the central heating system heat sharing method under switching regulate mode.By introducing temperature difference correction term, user's valve opening dutycycle is revised, improve the heat sharing irrationality because radiator area does not mate, user's circular flow does not mate and housing heat-transfer brings, there is better fairness, be easy to actual and promote the use of.

The technical scheme that the present invention solve the technical problem employing comprises the steps:

1) first to calculate according to formula (2) according to user heating area or user's construction area and user's valve opening dutycycle and share the valve that Lou Dong shares in the cycle and on average open dutycycle

$\stackrel{\‾}{\mathrm{\κ}}=\frac{{\mathrm{\Σ}}_{i=1}^n\left({\mathrm{\κ}}_i{A}_i\right)}{{\mathrm{\Σ}}_{i=1}^n{A}_i}---\left(2\right)$

Wherein:

the valve shared in the cycle for sharing Lou Dong on average opens dutycycle;

A _ifor heating area or the construction area of i user;

κ _ifor sharing the valve opening dutycycle of i user in the cycle, the opening time namely sharing cycle inner valve and the time ratio sharing the cycle;

N shares the number of users in building.

2) according to sharing the average indoor temperature of each user in the cycle, outdoor mean temperature and user heating area or construction area calculates the indoor and outdoor mean temperature difference of sharing Lou Dong according to formula (3)

$\stackrel{\‾}{\mathrm{\Δt}}=\frac{{\mathrm{\Σ}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\Σ}}_{i=1}^n{A}_i}---\left(3\right)$

Wherein:

for sharing the indoor and outdoor mean temperature difference of Lou Dong;

A _ifor heating area or the construction area of i user;

T _p,ifor sharing the average indoor temperature of i user in the cycle;

T _wfor sharing outdoor mean temperature in the cycle;

N shares the number of users in building.

3) calculate the time term of each user according to formula (4), its physical significance is that user's valve opening time departs from and shares the average open-interval degree of a building valve.

${\mathrm{\Δ\κ}}_i=({\mathrm{\κ}}_i-\stackrel{\‾}{\mathrm{\κ}})---\left(4\right)$

Wherein: Δ κ _ifor sharing the time term of i user in the cycle.

4) temperature difference correction term of each user is calculated according to formula (5), and nondimensionalization, its physical significance is that user indoor temperature departs from the degree of sharing a building Average indoor temperature.

${\mathrm{\Δ\θ}}_i=\frac{{\mathrm{\Δt}}_i-\stackrel{\‾}{\mathrm{\Δt}}}{\stackrel{\‾}{\mathrm{\Δt}}}=\frac{(t_{p,i}-t_w)-\stackrel{\‾}{\mathrm{\Δt}}}{\stackrel{\‾}{\mathrm{\Δt}}}---\left(5\right)$

Wherein: Δ θ _ifor sharing the temperature difference correction term of i user in the cycle.

5) the revised valve opening dutycycle of each user is calculated according to formula (6).

$\begin{array}{c}{\mathrm{\κ}}_{\mathrm{new},i}={\mathrm{\α}}_i{\mathrm{\Δ\κ}}_i+{\mathrm{\β}}_i{\mathrm{\Δ\θ}}_i+\stackrel{\‾}{\mathrm{\κ}}\\ ={\mathrm{\α}}_i({\mathrm{\κ}}_i-\stackrel{\‾}{\mathrm{\κ}})+{\mathrm{\β}}_i\frac{(t_{p,i}-t_w)-\stackrel{\‾}{\mathrm{\Δt}}}{\stackrel{\‾}{\mathrm{\Δt}}}+\stackrel{\‾}{\mathrm{\κ}}\\ ={\mathrm{\α}}_i({\mathrm{\κ}}_i-\frac{{\mathrm{\Σ}}_{i=1}^n\left({\mathrm{\κ}}_i{A}_i\right)}{{\mathrm{\Σ}}_{i=1}^n{A}_i})+{\mathrm{\β}}_i\frac{(t_{p,i}-t_w)-\frac{{\mathrm{\Σ}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\Σ}}_{i=1}^n{A}_i}}{\frac{{\mathrm{\Σ}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\Σ}}_{i=1}^n{A}_i}}+\frac{{\mathrm{\Σ}}_{i=1}^n\left({\mathrm{\κ}}_i{A}_i\right)}{{\mathrm{\Σ}}_{i=1}^n{A}_i}\end{array}---\left(6\right)$

Wherein:

κ _new.ifor revising rear i user sharing the valve opening dutycycle in the cycle

α _ifor the time term weight coefficient of i user, can fix, also can dynamic conditioning;

β _ifor the temperature difference item weight coefficient of i user, β _i=1-α _i;

6) calculate according to formula (7) heat consumption that each user shares

$q_i=\frac{{\mathrm{\κ}}_{\mathrm{new}.i}{A}_i}{{\mathrm{\Σ}}_{j=1}^n\left({\mathrm{\κ}}_{\mathrm{new},j}{A}_j\right)}{Q}_{\mathrm{total}}---\left(7\right)$

Wherein:

A _ifor heating area or the construction area of i user;

κ _new.ifor revising the valve opening dutycycle of rear i user;

Q _ifor the heat consumption that i user shares;

Q _totalfor sharing the total heat consumption of Lou Dong;

N shares the number of users in building.

Wherein above-mentioned step 6) can also replace with following step 6) and 7):

6) calculate each user according to formula (8) and share valve opening time in the cycle

τ _i＝κ _new.i×T (8)

Wherein:

τ _ifor revising rear i user sharing the valve opening time in the cycle,

T is for sharing the cycle.

7) calculate according to formula (9) heat consumption that each user shares

$q_i=\frac{{\mathrm{\τ}}_i{A}_i}{{\mathrm{\Σ}}_{j=1}^n{\mathrm{\τ}}_j{A}_j}{Q}_{\mathrm{total}}---\left(9\right)$

Wherein:

Q _ifor the heat consumption that i user shares;

Q _totalfor sharing the total heat consumption of Lou Dong;

N shares the number of users in building.

The technical program also comprises following feature:

Valve opening dutycycle κ in described formula (2) _iby measuring valve opening time, and obtaining divided by sharing the cycle, the average indoor temperature of each user, outdoor mean temperature, sharing a building total heat consumption Q _totalby measuring or calculating.

Describedly share a building total heat consumption Q _totalthe total heat consumption in Shi Yidong building, or Duo Dong building share the heat of one piece of calorimeter, or the cumulative heat of a building polylith calorimeter, or the cumulative heat of Duo Dong building polylith calorimeter.

Described time term weight coefficient α, temperature difference item weight coefficient β is fixing, or dynamic conditioning.

When user do not window, user's actual flow and demand volume zero deflection, user's actual radiator area and demand radiator area zero deflection, without housing heat-transfer, without solar radiation, during the Free Thermals such as indoor equipment heating, " the make-and-break time area-method " of sharing heat according to valve opening time ratio and user heating area is rational.And actual conditions are these disturbing factors is objective reality, key is the interference how reducing these factors.

Formula (6) namely reaches the various disturbing factor of reduction to the rational impact of heat sharing by the weight allocation of temperature difference correction term and time term, in formula (6), time term characterizes the opening time of valve, valve opening time is longer, time term is larger, the heat that user shares is more, and temperature difference correction term characterizes indoor temperature, and indoor temperature is higher, temperature difference correction term is larger, and the heat that user shares is more.Thus effectively can solve " make-and-break time area-method " Problems existing at present:

1. control by time term the temperature rise that the behavior of windowing of user and various Free Thermal cause, user windows, and heat consumption increases, and time term increases, the heat that user shares increases, various Free Thermal is more, and heat consumption reduces, and time term reduces, the heat that user shares reduces, under above-mentioned disturbing factor impact, heat consumption is consistent with sharing heat, thus avoids these improper factors to the rational impact of heat sharing.

2. by temperature difference correction term control radiator area do not mate, customer flow do not mate and housing heat-transfer on the rational impact of heat sharing, when user's radiator area is bigger than normal or customer flow is bigger than normal, if keep valve opening time constant, user is that heat consumption increases, but room temperature finally can be made to raise, room temperature correction term increases, the heat that user shares increases, under above-mentioned disturbing factor impact, heat consumption is consistent with sharing heat, thus avoids these improper factors to the rational impact of heat sharing.

3. when conducting heat toward low temperature family in the adjacent family that room temperature is higher, low temperature family room temperature can be caused to raise, temperature difference correction term increases, thus low temperature family is than only wanting many with the heat that " make-and-break time area-method " that valve opening time and user heating area share heat expense shares, and due to a building total amount of heat constant, the heat then shared toward the adjacent family of high temperature of low temperature family heat transfer reduces, and decreases housing heat-transfer shares heat unfairness to the adjacent family of high temperature.

The technical scheme that technical solution problem of the present invention adopts is characterized in that: the weight coefficient α of time term and temperature difference correction term, β can fix, also can dynamic conditioning.When the normal heat supply of user or various disturbing factor influence degree less time, each user α, β can fix, and initial value can be α=0.5, β=0.5.When disturbing factor influence degree is larger, can the value of dynamic conditioning α, β.

The technical scheme that technical solution problem of the present invention adopts is characterized in that: the weight coefficient α of time term and temperature difference correction term, β dynamic adjusting method.As previously mentioned, affect the rational disturbing factor of user's heat sharing to comprise: user windows the number of the Free Thermal such as number, indoor equipment heating of heat of degree, user's actual flow and demand volume extent of deviation, user's actual radiator area and demand radiator area extent of deviation, housing heat-transfer degree, the sun, different according to various disturbing factor influence degree, interference can be reduced by the value of dynamic conditioning α, β.Concrete grammar is: introduced feature vector as α, β dynamic conditioning foundation, according to formula, (method of dynamic conditioning time term weight coefficient α and temperature difference correction term weight coefficient β, the value of γ calculates according to formula (10), and its physical significance is the ratio of user time item and temperature difference correction term.

${\mathrm{\γ}}_i=\left|\frac{{\mathrm{\Δ\κ}}_i}{{\mathrm{\Δ\θ}}_i}\right|---\left(10\right)$

Wherein:

Δ κ _ifor sharing the time term of i user in the cycle;

Δ θ _ifor sharing the temperature difference correction term of i user in the cycle;

Subscript i represents i user.

γ _idirection define in the following manner, with Δ κ for abscissa, Δ θ be ordinate form plane coordinate system in, as Δ κ _i>0, Δ θ _i>0, γ _ibe positioned at first quartile, as Δ κ _i<0, Δ θ _i>0, γ _ibe positioned at the second quadrant, as Δ κ _i<0, Δ θ _i<0, γ _ibe positioned at third quadrant, as Δ κ _i>0, Δ θ _i<0, γ _ibe positioned at fourth quadrant.

Characteristic vector γ _ichange direction and size can distinguish and affect the rational various disturbing factor of user's heat sharing and annoyance level thereof.The normal heat supply of user or various disturbing factor influence degree less time, γ _ivalue about 1 fluctuation, with Δ κ _ifor abscissa, Δ θ _ifor in the plane coordinate system that ordinate is formed, it is positioned at first or third quadrant, i.e. the two equal and opposite in direction, and change direction is consistent.When various disturbing factor impact is larger, γ _ior value departs from 1, or direction departs from first, third quadrant.As i user windows, can cause following two kinds of situations: 1. under identical thermal comfort bar (average indoor temperature) part, i user's valve opening time increases; 2. i user's average indoor temperature is low, and i user's valve opening time is long simultaneously.Below the characteristic vector γ of i user can either way be caused _inumerical value increases.Work as γ _iabsolute value be greater than 1, may be positioned at according to degree difference of windowing with Δ κ _ifor abscissa, Δ θ _ifor in first in the plane coordinate system that ordinate is formed, fourth quadrant, thus can increase α, reduction β, and adjust the value of α, β according to the Different Dynamic of influence degree, specific algorithm is completed by equipment plug-in.

According to the characteristic vector that the ratio of user time item and temperature difference correction term is formed the weight coefficient α of dynamic conditioning time term and temperature difference correction term, the method of β, various disturbing factor can be weakened more reasonably, more neatly on the rational impact of heat sharing, make revised " make-and-break time area-method " heat sharing more fair more reasonable.

The present invention is for solveing the technical problem, additionally provide a kind of heat allocation system of central heating, it is characterized in that: comprise indoor information acquisition module, break-make control module, information gathering and allocation module, outdoor informational acquisition module, wherein indoor information acquisition module is used for measuring indoor temperature, outdoor informational acquisition module is used for measuring outdoor temperature, the indoor temperature that break-make control module is fed back according to indoor information acquisition module carries out break-make control to valve, the opening and closing information of valve is obtained by information gathering and allocation module, outdoor informational acquisition module sends the outdoor temperature collected to information gathering and allocation module, information gathering and allocation module carry out heat sharing according to method provided by the invention.

The heat allocation system of described a kind of central heating, also comprises a building calorimeter and shares a building total heat consumption for measuring, and send information gathering and allocation module to.

As previously mentioned, the inventive method and effectively can solve user's actual flow that " make-and-break time area-method " at present exist and demand volume deviation, user's actual radiator area and demand radiator area deviation, housing heat-transfer, the sun based on the heat death theory apportion system of the method and obtain the Free Thermals such as hot, indoor equipment to the rational impact of heat sharing, make the heat sharing of " make-and-break time area-method " more reasonable, be easier to be easily accepted by a user.

Accompanying drawing explanation

Fig. 1 is the principle Organization Chart of the heat sharing metering system of central heating.

Fig. 2 is the overall structure schematic diagram of a heat sharing metering system embodiment of central heating.

Detailed description of the invention

Set accompanying drawing and example are described further technical scheme of the present invention below, but it does not form limiting to the claimed invention:

As shown in Figure 2, calorimeter in a Building Heat porch metering building total amount of heat, and in this, as the heating charge foundation of this building.Each user's branch line installs on-off control valve for room-temperature, and room thermostat is set in room.Room thermostat is measured room temperature and is passed to on-off control valve for room-temperature by wireless or wired mode together with the room-temperature signal simultaneously room-temperature signal of actual measurement and user set, on-off control valve for room-temperature is by the break-make of its built-in room temperature control strategy by-pass valve control, thus control the room temperature of user, and calculate user's valve opening dutycycle.Be positioned over a building data acquisition sharing device of certain position in building, the data interaction with on-off control valve, outdoor temperature sensor, a building calorimeter is realized by wired or wireless mode, and realize the heat sharing of user according to heat sharing metering method of the present invention according to built-in calculation procedure, and by wired or wireless mode to host computer transmission data accept host computer administration order.Wherein, room thermostat forms indoor information acquisition module, on-off control valve for room-temperature forms break-make control module, outdoor temperature sensor forms outdoor informational acquisition module, and a building data acquisition sharing device, a building calorimeter, master system and communication line configuration information gather and allocation module.

The heat sharing method of central heating provided by the invention is for on-off valve regulation central heating system, and that carries out heat quantity consuming according to " make-and-break time area-method " shares metering.By the user indoor temperature measured in real time and outdoor temperature, according to built-in special corrected Calculation program, dutycycle is opened to on-off valve and revise, and then open dutycycle according to correction late gate and share a building total amount of heat.Share the cycle to be one every day, share the heat at each family according to formula (1) (2).

$\begin{array}{c}{\mathrm{\&kappa;}}_{\mathrm{new},i}={\mathrm{\&alpha;}}_i{\mathrm{\&Delta;\&kappa;}}_i+{\mathrm{\&beta;}}_i{\mathrm{\&Delta;\&theta;}}_i+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}{\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}+\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}\end{array}---\left(1\right)$

Wherein:

κ _new.ifor the revised valve opening dutycycle of i user;

A _ifor heating area or the construction area of i user, m ²;

T _p,ifor sharing i user's average indoor temperature in the cycle, DEG C;

T _wfor sharing outdoor mean temperature in the cycle, DEG C;

κ _ifor sharing the valve opening dutycycle of i user in the cycle;

α is time term weight coefficient;

β is temperature difference item weight coefficient, β=1-α;

Δ κ _ishare the time term of i user in the cycle;

Δ θ _ishare the temperature difference correction term of i user in the cycle;

N is for sharing a building number of users.

$q_i=\frac{{\mathrm{\&kappa;}}_{\mathrm{new}.i}{A}_i}{{\mathrm{\&Sigma;}}_{j=1}^n\left({\mathrm{\&kappa;}}_{\mathrm{new},j}{A}_j\right)}{Q}_{\mathrm{total}}---\left(2\right)$

Wherein:

Q _ifor the heat consumption that i user shares, MJ;

Q _totalfor sharing a building total heat consumption, MJ.

The α at each family, β give tacit consent to equal value 0.5, calculate the γ value at each family according to formula (3), when | γ _i| when>=1.5, at first and third quadrant, then get α _i=0.7, β _i=0.3.

${\mathrm{\&gamma;}}_i=\left|\frac{{\mathrm{\&Delta;\&kappa;}}_i}{{\mathrm{\&Delta;\&theta;}}_i}\right|---\left(3\right)$

Calculate user's heat consumption day by day by above method, then add up, then can obtain the actual of the whole Heating Season of this user and share total heat consumption.

Hot methodology under the central heating system switching regulate mode that the present invention proposes, better can overcome problems of the prior art, heat can be used to share more accurately, fairer and more reasonable.

Claims (8)

1. a heat sharing method for central heating system, is applicable to the central heating system of switching regulate mode, it is characterized in that: comprise the following steps:

(1) to calculate according to formula (1) according to user heating area or user's construction area and user's valve opening dutycycle and share the valve that Lou Dong shares in the cycle and on average open dutycycle

$\stackrel{\&OverBar;}{\mathrm{\&kappa;}}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(1\right)$

Wherein:

the valve shared in the cycle for sharing Lou Dong on average opens dutycycle;

A _ifor heating area or the construction area of i user;

κ _ifor sharing the valve opening dutycycle of i user in the cycle, namely share the opening time of cycle inner valve

With the time ratio sharing the cycle;

N shares the number of users in building;

(2) according to sharing the average indoor temperature of each user in the cycle, outdoor mean temperature and user heating area or construction area calculates the indoor and outdoor mean temperature difference of sharing Lou Dong according to formula (2)

$\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(2\right)$

Wherein:

T _p,ifor sharing the average indoor temperature of i user in the cycle;

T _wfor sharing outdoor mean temperature in the cycle;

(3) time term of each user is calculated according to formula (3),

${\mathrm{\&Delta;\&kappa;}}_i=({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})---\left(3\right)$

Wherein: Δ κ _ifor sharing the time term of i user in the cycle;

(4) temperature difference correction term of each user is calculated according to formula (4),

${\mathrm{\&Delta;\&theta;}}_i=\frac{{\mathrm{\&Delta;t}}_i-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}=\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}---\left(4\right)$

Wherein: Δ θ _ifor sharing the temperature difference correction term of i user in the cycle;

(5) the revised valve opening dutycycle of each user is calculated according to formula (5),

$\begin{array}{c}{\mathrm{\&kappa;}}_{new,i}={\mathrm{\&alpha;}}_i{\mathrm{\&Delta;\&kappa;}}_i+{\mathrm{\&beta;}}_i{\mathrm{\&Delta;\&theta;}}_i+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}{\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}+\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}\end{array}---\left(5\right)$

Wherein:

κ _new.ifor revising the valve opening dutycycle of rear i user,

α _ifor the time term weight coefficient of i user;

β _ifor the temperature difference item weight coefficient of i user, β _i=1-α _i;

(6) calculate according to formula (6) heat consumption that each user shares

$q_i=\frac{{\mathrm{\&kappa;}}_{new.i}{A}_i}{{\mathrm{\&Sigma;}}_{j=1}^n\left({\mathrm{\&kappa;}}_{new,j}{A}_j\right)}{Q}_{total}---\left(6\right)$

Wherein:

κ _new.i, κ _new.jbe respectively the valve opening dutycycle of i, j user after revising;

A _i, A _jbe respectively i, the heating area of j user or construction area;

Q _ifor the heat consumption that i user shares;

Q _totalfor sharing the total heat consumption of Lou Dong.

2. a heat sharing method for central heating system, is applicable to the central heating system of switching regulate mode, it is characterized in that: comprise the following steps:

(1) to calculate according to formula (1) according to user heating area or user's construction area and user's valve opening dutycycle and share the valve that Lou Dong shares in the cycle and on average open dutycycle

$\stackrel{\&OverBar;}{\mathrm{\&kappa;}}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(1\right)$

Wherein:

the valve shared in the cycle for sharing Lou Dong on average opens dutycycle;

A _ifor heating area or the construction area of i user;

κ _ifor sharing the valve opening dutycycle of i user in the cycle, the opening time namely sharing cycle inner valve and the time ratio sharing the cycle;

N shares the number of users in building;

(2) according to sharing the average indoor temperature of each user in the cycle, outdoor mean temperature and user heating area or construction area calculates the indoor and outdoor mean temperature difference of sharing Lou Dong according to formula (2)

$\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(2\right)$

Wherein:

T _p,ifor sharing the average indoor temperature of i user in the cycle;

T _wfor sharing outdoor mean temperature in the cycle;

(3) time term of each user is calculated according to formula (3),

${\mathrm{\&Delta;\&kappa;}}_i=({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})---\left(3\right)$

Wherein: Δ κ _ifor sharing the time term of i user in the cycle;

(4) temperature difference correction term of each user is calculated according to formula (4),

${\mathrm{\&Delta;\&theta;}}_i=\frac{{\mathrm{\&Delta;t}}_i-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}=\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}---\left(4\right)$

Wherein: Δ θ _ifor sharing the temperature difference correction term of i user in the cycle;

(5) the revised valve opening dutycycle of each user is calculated according to formula (5),

$\begin{array}{c}{\mathrm{\&kappa;}}_{new,i}={\mathrm{\&alpha;}}_i{\mathrm{\&Delta;\&kappa;}}_i+{\mathrm{\&beta;}}_i{\mathrm{\&Delta;\&theta;}}_i+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;}t}}+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}{\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}+\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}\end{array}---\left(5\right)$

Wherein:

κ _new.ifor revising the valve opening dutycycle of rear i user,

α _ifor the time term weight coefficient of i user;

β _ifor the temperature difference item weight coefficient of i user, β _i=1-α _i;

(6) calculate each user according to formula (6) and share valve opening time in the cycle

τ _i=κ _new.i×T （6）

Wherein:

τ _ifor revising rear i user sharing the valve opening time in the cycle,

T for sharing the cycle,

(7) calculate according to formula (7) heat consumption that each user shares

$q_i=\frac{{\mathrm{\&tau;}}_i{A}_i}{{\mathrm{\&Sigma;}}_{j=1}^n{\mathrm{\&tau;}}_j{A}_j}{Q}_{total}---\left(7\right)$

Wherein:

τ _i, τ _jto be respectively after revising i, j user sharing the valve opening time in the cycle;

A _i, A _jbe respectively i, the heating area of j user or construction area;

Q _ifor the heat consumption that i user shares;

Q _totalfor sharing the total heat consumption of Lou Dong;

N shares the number of users in building.

3. method according to claim 1 and 2, is characterized in that: valve opening dutycycle κ in described formula (1) _iby measuring valve opening time, and obtaining divided by sharing the cycle, the average indoor temperature of each user, outdoor mean temperature, sharing the total heat consumption Q of Lou Dong _totalby measuring or calculating.

4. the method according to any one of claim 1-2, is characterized in that: described in share a building total heat consumption Q _totalcan the total heat consumption in Shi Yidong building, or Duo Dong building share the heat of one piece of calorimeter, or the cumulative heat of a building polylith calorimeter, or the cumulative heat of Duo Dong building polylith calorimeter.

5. the method according to any one of claim 1-2, is characterized in that: described time term weight coefficient α, and temperature difference item weight coefficient β can be fixing, or dynamic conditioning.

6. method according to claim 5, it is characterized in that: the method for dynamic conditioning user time item weight coefficient α and temperature difference correction term weight coefficient β is introduced feature vector γ, and determine user α according to the change direction and size of sharing user γ in the cycle, the value of β, the value of γ calculates according to formula (8)

${\mathrm{\&gamma;}}_i=\left|\frac{{\mathrm{\&Delta;\&kappa;}}_i}{{\mathrm{\&Delta;\&theta;}}_i}\right|---\left(8\right),$

γ _idirection define in the following manner, with Δ κ for abscissa, Δ θ be ordinate form plane coordinate system in, as Δ κ _i>0, Δ θ _i>0, γ _ibe positioned at first quartile, as Δ κ _i<0, Δ θ _i>0, γ _ibe positioned at the second quadrant, as Δ κ _i<0, Δ θ _i<0, γ _ibe positioned at third quadrant, as Δ κ _i>0, Δ θ _i<0, γ _ibe positioned at fourth quadrant, wherein, subscript i represents i user.

7. the heat sharing method of a kind of central heating system according to any one of claim 1-6 carries out the system of heat sharing, it is characterized in that: comprise indoor information acquisition module, break-make control module, information gathering and allocation module, outdoor informational acquisition module, wherein indoor information acquisition module is used for measuring indoor temperature, outdoor informational acquisition module is used for measuring outdoor temperature, the indoor temperature that break-make control module is fed back according to indoor information acquisition module carries out break-make control to valve, the opening and closing information of valve is obtained by information gathering and allocation module, outdoor informational acquisition module sends the outdoor temperature collected to information gathering and allocation module, information gathering and the method for allocation module according to any one of claim 1-6 carry out heat sharing.

8. system according to claim 7, is characterized in that: also comprise a building calorimeter and share a building total heat consumption for measuring, and send information gathering and allocation module to.