CN103557556A - Heat apportionment method and system of central heating system under on-off regulation mode - Google Patents

Abstract

The invention relates to a heat apportionment method and system of a central heating system under an on-off regulation mode. The heat apportionment method comprises the following steps of carrying out the computation of the heating heat consumption according to an on-off time area method, and modifying each household valve opening duty ratio according to an embedded special computation method by utilizing real-time measured user indoor temperature and outdoor temperature, so as to compute each household apportioned heat by utilizing each modified household valve opening duty ratio. The heat apportionment system comprises an indoor information collection module, an on-off control module, an information collection and apportionment module and an outdoor information collection module, wherein the indoor information collection module is used for measuring the indoor temperature, the outdoor information collection module is used for measuring the outdoor temperature, the on-off control module is used for carrying out on-off control on a valve according to the indoor temperature fed back by the indoor information collection module, the outdoor information collection module is used for sending the collected outdoor temperature to the information collection and apportionment module, and the information collection and apportionment module is used for carrying out the heat apportionment according to the heat apportionment method disclosed by the 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 the hot methodology of a kind of central heating system based under switching regulate mode, belong to field of heating ventilation air conditioning.

Background technology

Take that " minute family regulate " and " meterage " be core " important component part of ”Shi China Building Energy-saving Work is reformed in heat supply, by the Ministry of Construction, promulgated and the < < heat metering technical regulation JCJ173 2009 > > of execution in 1 day July in 2009 and Chinese patent < < method and system > > (200610114686.2 applying date of application number 2006.11.21) thereof who simultaneously realizes thermal conditioning and heat metering, provided user's heat sharing metering method of a kind of " make-and-break time area-method ".The method is to control by user heating recirculated water being carried out to break-make the object that reaches control room temperature, time and the heating area of each heating user accumulative total valve opening of simultaneously take is foundation, share whole building and heating heat consumption, and charge by heat, the service time of each user's on-off control valve need be added up and record to the heat measuring system matching with the method only.Yet practical engineering application discovery,, also there is the more problem that not yet solves or overcome at present in above-mentioned " make-and-break time area-method " of sharing heat according to valve accumulative total opening time and heating area, 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 to be on the one hand design itself unavoidably exist error to a certain degree, the phenomenon that user's private changes on the other hand, private increases radiator is general, the heat that causes thus radiator area user bigger than normal to share is on the low side, thereby underpays hot expense; Otherwise, radiator area user less than normal will share heat more, pay hot expense, irrational phenomenon of this objective reality causes " the make-and-break time area-method " of according to valve accumulative total opening time and heating area, sharing heat by user, not accepted completely, applies and is restricted more.

(2) it is unreasonable that the difference of user's actual flow and design discharge can cause heat sharing." make-and-break time area-method " heat sharing reasonably another prerequisite is that user's actual flow need to mate completely with demand volume, and actual state to be on the one hand design itself unavoidably exist error to a certain degree, be difficult to accomplish that design discharge is exactly demand volume, on the other hand because hot user itself exists geneogenous imbalance, need artificial installing regulating system additional and carry out meticulous manual adjustment, just can make " make-and-break time method " to meet good required precision, and this same being difficult in Practical Project is realized, the customer flow often having is more than demand, some customer flows are fewer than demand, the heat that will cause flow user how to share is on the low side, the heat that the user that flow is few shares is on the high side, can make equally to share heat " make-and-break time area-method " according to valve accumulative total opening time and heating area can not be accepted by 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, while causing the normal heating in the neighbour family of high room temperature user's valve opening time, to increase, shared heat more, if this unreasonable situation causes differs greatly and also can make to share heat " make-and-break time area-method " according to valve accumulative total opening time and heating area and can not be accepted by user, apply and be restricted.

In view of the above problems, the heat sharing metering method of a Chinese patent < < central heating and system > > (application number 200910069672.7, applying date 2009.7.9) method that the hot user's supply and return water temperature of a kind of employing is proofreaied and correct " make-and-break time area-method " has been proposed, wish to improve the degree of accuracy that heat is shared metering, but the method can not fundamentally solve the problems referred to above that " make-and-break time area-method " exists.As previously mentioned, carry out " the make-and-break time area-method " of heat sharing why will revise according to valve opening time and heating area, 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 heat transfer between family can influence each other.First, the heat sharing metering method of a Chinese patent < < central heating and system > > (application number 200910069672.7, the formula (1) of correction valve opening time ratio applying date 2009.7.9) proposing there will be inconsistent correction for the problems referred to above, for example, 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 that is 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, under both of these case, design supply and return water temperature the same, actual temperature of supply water is all the same, according to the heat sharing metering method of a Chinese patent < < central heating and system > > (application number 200910069672.7, applying date 2009.7.9) formula (1) proposing is revised, a no matter, b, tri-parameters of c are value how, from correction formula (1), can see, valve opening time must be a past large correction, one toward little correction, , reduced the radiator area deviation of bringing bigger than normal, just will inevitably the amplified flow deviation of bringing bigger than normal, reduce the flow deviation of bringing bigger than normal and will inevitably amplify the deviation that radiator area brings, lost the meaning of revising.

Secondly, the heat sharing metering method of a Chinese patent < < central heating and system > > (application number 200910069672.7, applying date 2009.7.9) major parameter that the formula (1) proposing is revised is actual measurement supply and return water temperature, but when changes in flow rate is when continuous variation becomes step and changes, supply and return water temperature can not reflect the variation of user's heat amount.Owing to adopting on-off valve regulation, by being opened to steady flow, there is an astable transient process in valve, the supply and return water temperature of surveying is actually the temperature of stagnant water in pipeline, it just 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 that can not reflect user, therefore, can not overcome in theory the problem that " make-and-break time area-method " exists.

A Chinese patent < < raising " make-and-break time area-method " heat is shared method and the system > > (application number: 2010105490899 thereof of system accuracy and energy-saving efficiency, applying date 2010.11.18) in, mentioned that heat shares correcting module, according to reality, calculate user heating equipment parameter and then calculate the heat dissipation capacity under actual heat transfer coefficient and standard condition, and gathered heating time is revised.But how " user measures correction factor " of patent not mentioned its introducing calculates, therefore this part does not have referential in heat sharing correction.

To sum up,, also there is the more problem that not yet solves or overcome at present in " the make-and-break time area-method " of sharing heat according to valve accumulative total opening time and heating area.

Summary of the invention

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

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

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

$\stackrel{\&OverBar;}{\mathrm{\&kappa;}}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(2\right)$

Wherein:

for sharing the valve that Lou Dong shares in the cycle, on average open dutycycle;

A _iheating area or construction area for i user;

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

N is the number of users of sharing in building.

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

$\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}=\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}---\left(3\right)$

Wherein:

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

A _iheating area or construction area for 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 is the number of users of sharing in building.

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

${\mathrm{\&Delta;\&kappa;}}_i=({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})---\left(4\right)$

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

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

。

${\mathrm{\&Delta;\&theta;}}_i=\frac{{\mathrm{\&Delta;t}}_i-\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}=\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}---\left(5\right)$

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

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

$\begin{array}{c}{\mathrm{\&kappa;}}_{\mathrm{new},i}={\mathrm{\&alpha;}}_i{\mathrm{\&Delta;\&kappa;}}_i+{\mathrm{\&beta;}}_i{\mathrm{\&Delta;\&theta;}}_i+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\stackrel{\&OverBar;}{\mathrm{\&kappa;}})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}{\stackrel{\&OverBar;}{\mathrm{\&Delta;t}}}+\stackrel{\&OverBar;}{\mathrm{\&kappa;}}\\ ={\mathrm{\&alpha;}}_i({\mathrm{\&kappa;}}_i-\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i})+{\mathrm{\&beta;}}_i\frac{(t_{p,i}-t_w)-\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}{\frac{{\mathrm{\&Sigma;}}_{i=1}^n(t_{p,i}-t_w)A_i}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}}+\frac{{\mathrm{\&Sigma;}}_{i=1}^n\left({\mathrm{\&kappa;}}_i{A}_i\right)}{{\mathrm{\&Sigma;}}_{i=1}^n{A}_i}\end{array}---\left(6\right)$

Wherein:

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

α _ifor i user's time term weight coefficient, can fix, also can dynamically adjust;

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

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

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

Wherein:

A _iheating area or construction area for i user;

κ _new.ifor revising rear i user's valve opening dutycycle;

Q _ithe heat consumption of sharing for i user;

Q _totalfor sharing the total heat consumption of Lou Dong;

N is the number of users of sharing in building.

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

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

τ _i＝κ _new.i×T (8)

Wherein:

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

T is for sharing the cycle.

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

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

Wherein:

Q _ithe heat consumption of sharing for i user;

Q _totalfor sharing the total heat consumption of Lou Dong;

N is the number of users of sharing in building.

The technical program also comprises following feature:

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

The described building total heat consumption Q that shares _totalthe total heat consumption in Shi Yidong building, or Duo Dong building share the heat of a calorimeter, or the cumulative heat of Yi Dong 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 fixes, or dynamically adjust.

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

The weight allocation of formula (6) i.e. by temperature difference correction term and time term reaches and reduces various disturbing factors to the rational impact of heat sharing, 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.Thereby can effectively solve the problem that " make-and-break time area-method " exists at present:

1. by time term, control user's the behavior of windowing and the temperature rise that various Free Thermal causes, user windows, and heat consumption increases, and time term increases, the heat that user shares increases, various Free Thermals are 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, thereby has avoided these improper factors on the rational impact of heat sharing.

2. by temperature difference correction term, control that radiator area does not mate, customer flow does not mate and family between conduct heat 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 finally can make room temperature 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, thereby has avoided these improper factors on the rational impact of heat sharing.

3. when conducting heat toward low temperature family in the higher adjacent family of room temperature, can cause low temperature family room temperature to raise, temperature difference correction term increases, thereby low temperature family wants many than only sharing with valve opening time and user heating area the heat that " the make-and-break time area-method " of heat expense share, and because a building total amount of heat is constant, the heat that the adjacent family of high temperature of conducting heat toward low temperature family is shared reduces, and has reduced the unfairness of conducting heat heat is shared in the adjacent family of high temperature between family.

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, and also can dynamically adjust.When the normal heat supply of user or various disturbing factor influence degree hour, each user α, β can fix, initial value can be α=0.5, β=0.5.When disturbing factor influence degree is larger, can dynamically adjust the value of 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, affecting the rational disturbing factor of user's heat sharing comprises: the window number of the Free Thermal such as number, indoor equipment heating of the heat of heat transfer degree, the sun between degree, user's actual flow and demand volume extent of deviation, user's actual radiator area and demand radiator area extent of deviation, family of user, different according to various disturbing factor influence degrees, can be by dynamically adjusting α, the value of β reduces to disturb.Concrete grammar is: introduced feature vector

as α, β dynamically adjusts foundation, and according to formula, (dynamically adjust the method for time term weight coefficient α and temperature difference correction term weight coefficient β, the value of γ is calculated according to formula (10), and its physical significance is the ratio of user time item and temperature difference correction term.

${\mathrm{\&gamma;}}_i=\left|\frac{{\mathrm{\&Delta;\&kappa;}}_i}{{\mathrm{\&Delta;\&theta;}}_i}\right|---\left(10\right)$

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, take Δ κ as abscissa, Δ θ is in the plane coordinate system that forms of ordinate, 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 factors of user's heat sharing and annoyance level thereof.The normal heat supply of user or various disturbing factor influence degree hour, γ _ivalue in 1 left and right, fluctuate, with Δ κ _ifor abscissa, Δ θ _iin the plane coordinate system forming for ordinate, 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 impacts are 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 either way can cause i user's characteristic vector γ _inumerical value increases.Work as γ _iabsolute value be greater than 1, according to the degree difference of windowing, may be positioned at Δ κ _ifor abscissa, Δ θ _iin in the plane coordinate system forming for ordinate first, fourth quadrant, thereby can increase α, reduce β, and according to the Different Dynamic of influence degree, adjust the value of α, β, specific algorithm is completed by equipment plug-in.

The characteristic vector forming according to the ratio of user time item and temperature difference correction term

dynamically adjust the weight coefficient α of time term and temperature difference correction term, the method of β, can weaken more reasonably, more neatly various disturbing factors to 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, a kind of heat sharing system of central heating is also provided, it is characterized in that: comprise indoor information acquisition module, break-make control module, information gathering with share module, outdoor information acquisition module, wherein indoor information acquisition module is used for measuring indoor temperature, outdoor information acquisition module is used for measuring outdoor temperature, break-make control module is carried out break-make control according to the indoor temperature of indoor information acquisition module feedback to valve, the switching information of valve by information gathering with share module and obtain, outdoor information acquisition module sends the outdoor temperature collecting information gathering to and shares module, information gathering with share module and carry out heat sharing according to method provided by the invention.

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

As previously mentioned, the metering of the inventive method and the heat based on the method is shared system and can effectively be solved heat transfer between " make-and-break time area-method " exists at present user's actual flow and demand volume deviation, user's actual radiator area and demand radiator area deviation, family, the sun 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 accepted by 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 an embodiment of heat sharing metering system of central heating.

The specific embodiment

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

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

The heat sharing method of central heating provided by the invention, for on-off valve regulation central heating system, is carried out the metering of sharing of heating heat consumption according to " make-and-break time area-method ".By user indoor temperature and the outdoor temperature of real-time measurement, according to built-in special-purpose corrected Calculation program, on-off valve is opened to dutycycle and revise, and then share a building total amount of heat according to revising late gate unlatching dutycycle.Take and share the cycle as one every day, according to formula (1) (2), share the heat at each family.

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

Wherein:

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

A _ifor i user's heating area or construction area, m ²;

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

T _wfor sharing outdoor mean temperature in the cycle, ℃;

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 _ithe time term of sharing i user in the cycle;

Δ θ _ithe temperature difference correction term of sharing 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 gives tacit consent to equal value 0.5, calculates the γ value at each family according to formula (3), when | γ _i|, at first and third quadrant, get α at>=1.5 o'clock _i=0.7, β _i=0.3.

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

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

Hot methodology under the central heating system switching regulate mode that the present invention proposes, can better overcome problems of the prior art, can use heat 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) according to user heating area or user's construction area and user's valve opening dutycycle, according to formula (1), calculate 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:

for sharing the valve that Lou Dong shares in the cycle, on average open dutycycle;

A _iheating area or construction area for i user;

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

N is the number of users of sharing in building.

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

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

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) according to formula (3), calculate each user's time term,

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

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

(4) according to formula (4), calculate each user's temperature difference correction term,

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

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

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

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

Wherein:

κ _new.ifor revising rear i user's valve opening dutycycle,

α _itime term weight coefficient for i user;

β _ifor i user's temperature difference item weight coefficient, β _i=1-α _i.

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

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

Wherein:

Q _ithe heat consumption of sharing for i user;

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) according to user heating area or user's construction area and user's valve opening dutycycle according to formula (1)

Calculating is shared the valve that Lou Dong shares in the cycle and is on average opened 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:

for sharing the valve that Lou Dong shares in the cycle, on average open dutycycle;

A _iheating area or construction area for i user;

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

N is the number of users of sharing in building.

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

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

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) according to formula (3), calculate each user's time term,

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

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

(4) according to formula (4), calculate each user's temperature difference correction term,

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

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

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

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

κ _new.ifor revising rear i user's valve opening dutycycle,

α _itime term weight coefficient for i user;

β _ifor i user's temperature difference item weight coefficient, β _i=1-α _i.

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

τ _i＝κ _new.i×T (6)

Wherein:

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

T is for sharing the cycle,

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

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

Wherein:

Q _ithe heat consumption of sharing for i user;

Q _totalfor sharing the total heat consumption of Lou Dong;

N is the number of users of sharing 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 obtain divided by sharing the cycle, each user's average indoor temperature, outdoor mean temperature, shares the total heat consumption Q of Lou Dong _totalby measuring or calculating.

According to claim 1 method described in 3 any one, it is characterized in that: described in share a building total heat consumption Q _totaltotal heat consumption that can Shi Yidong building, or Duo Dong building share the heat of a calorimeter, or the cumulative heat of Yi Dong building polylith calorimeter, or the cumulative heat of Duo Dong building polylith calorimeter.

According to claim 1 method described in 4 any one, it is characterized in that: described time term weight coefficient α, temperature difference item weight coefficient β can fix, or dynamically adjusts.

6. method according to claim 5, it is characterized in that: the method for dynamically adjusting user time item weight coefficient α and temperature difference correction term weight coefficient β is introduced feature vector γ, and determine user α, the value of β according to change direction and the size of sharing user γ in the cycle.The value of γ is calculated 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, take Δ κ as abscissa, Δ θ is in the plane coordinate system that forms of ordinate, 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 according to a kind of central heating system described in claim 1 6 is carried out the system of heat sharing, it is characterized in that: comprise indoor information acquisition module, break-make control module, information gathering with share module, outdoor information acquisition module, wherein indoor information acquisition module is used for measuring indoor temperature, outdoor information acquisition module is used for measuring outdoor temperature, break-make control module is carried out break-make control according to the indoor temperature of indoor information acquisition module feedback to valve, the switching information of valve by information gathering with share module and obtain, outdoor information acquisition module sends the outdoor temperature collecting information gathering to and shares module, information gathering with share module according to claim 1 the method described in 6 carry out heat sharing.

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

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