CN109373439B - Adjusting method for minimizing adjusting time of heating system - Google Patents
Adjusting method for minimizing adjusting time of heating system Download PDFInfo
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- CN109373439B CN109373439B CN201811294250.5A CN201811294250A CN109373439B CN 109373439 B CN109373439 B CN 109373439B CN 201811294250 A CN201811294250 A CN 201811294250A CN 109373439 B CN109373439 B CN 109373439B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
Abstract
The invention discloses an adjusting method for minimizing the adjusting time of a heating system, which comprises the following steps: numbering heat users in a heat supply system, performing initial flow distribution on the heat users, adjusting a first time period, obtaining the heat flow relation of each user, and obtaining the most adjusting timeThe short distribution proportion is that the change of the pipe network in the heating system is the change of the flow distribution. The invention aims at the time from the beginning of regulation to the end of regulation of the heating system to obtain the flow distribution proportion of each user of the system according to the flowxThe distribution can minimize the adjustment time of the heating system, the method is operable and simple to operate, the room temperature of the user can reach the design temperature at the fastest speed, and meanwhile, the energy is saved.
Description
Technical Field
The invention belongs to the field of heat supply regulation, and particularly relates to a regulating method for shortening the regulating time of a heat supply system.
Background
The user room temperature is related to various factors, such as outdoor air temperature, pipe network flow, heating and water supply temperature, building heat consumption and the like. When the heat load of a user changes, the flow rate, the water supply temperature and the like of a heat supply system need to be adjusted to realize heat supply according to needs. The purpose of heating regulation is to adapt the heat dissipation capacity of the heat dissipation equipment of a heating user to the change rule of the heat load of the user so as to prevent the heating user from generating overhigh or overlow room temperature.
In the heating regulation process, the running parameters can be reached only after a certain regulation time, the shorter the process time is, the shorter the time for the room temperature of a user to reach the design temperature is, and the less energy is wasted by a heating system.
At present, a wireless remote room temperature instantaneous acquisition monitoring system is established in a method for shortening the heat supply adjusting time, room temperature monitoring points are arranged in secondary network systems of users according to the far, middle and near distribution points of a heat supply area, so that the room temperature parameters of a heat exchange station and the users are accurately and timely fed back to a monitoring platform, and the heat supply adjusting time is shortened. This adjustment method shortens the response time of the system adjustment and does not shorten the time from the start of the adjustment to the completion of the adjustment.
Disclosure of Invention
The invention is provided for solving the problems in the prior art, and aims to provide an adjusting method for shortening the adjusting time of a heating system.
The technical scheme of the invention is as follows: an adjustment method for minimizing the adjustment time of a heating system, comprising the steps of:
numbering of thermal users in a heating system
Arranging the individual heat users in the same heating system according to numbers, such as 1,2,3, … …, i, j … …, n;
ii, carrying out initial flow distribution on hot users and carrying out first time period adjustment
Assuming an initial flow allocation x, x is (x)1 (0)，……，xn (0))；
Wherein x is1 (0)Initial traffic for user 1;
xn (0)initial traffic for user n;
the first time period sets the number of the hot users j to be distributed to the hot users i as xij (0)；
Obtaining a first time period flow influence coefficient matrix
The flow rate of each hot user after a period of time is x(1)，
X is then(1)＝(x1 (1)，……，xn (1))；
Medicine for curing acute respiratory diseases
Wherein a isij (0)A representing consumption of the hot user j per flow rate of i units supplied to the hot userij (0)Per unit flow rate can be obtainedTo, x(0)＝x(1)A，
Where A is (a)ij (0)) I is more than or equal to 1, j is less than or equal to n, and A is a flow influence coefficient matrix of the first time period;
iv, obtaining the heat flow relation of each user
If the influence coefficient matrix A of each heat user flow is not changed by time, continuously executing the operation for l times to obtain the relationship of each heat user flow obtained for the l time: x is the number of(l)＝x(0)A-l；
V. obtaining the distribution proportion with the shortest adjusting time
The maximum increase factor λ corresponding to a and each flow distribution ratio x satisfy the following relationship: x is equal to x,
can be obtained as follows
To illustrate the flow rate will be
Is increased by multiple times, and the increase rate cannot exceed
And the growth rate is unique, and the corresponding flow distribution ratio x is the flow distribution ratio that minimizes the adjustment time.
In step ii, the change of the pipe network in the heating system is the change of the flow distribution.
In step v the flow impact coefficient matrix a is a non-negative irreducible matrix.
The unit of hot user i in step i is denoted pi, e.g. hot user is denoted by flow rate, then pi is t/h.
The first period in step ii is a heating relaxation period.
The method aims at the time used in the process from the beginning of adjustment to the end of adjustment of the heating system, and obtains the shortest adjustment time of the heating system as long as the flow of each user of the system is distributed according to the flow distribution proportion x.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
fig. 2 is a schematic diagram of the connection of the present invention.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1-2, an adjusting method for minimizing the adjusting time of a heating system includes the following steps:
numbering S1 thermal users in a heating system
Arranging the individual heat users in the same heating system according to numbers, such as 1,2,3, … …, i, j … …, n;
ii, performing initial flow distribution on the hot users, and performing first time period adjustment S2
Assuming an initial flow allocation x, x is (x)1 (0)，……，xn (0))；
Wherein x is1 (0)Initial traffic for user 1;
xn (0)initial traffic for user n;
the first time period sets the number of the hot users j to be distributed to the hot users i as xij (0)；
Obtaining a first time period flow influence coefficient matrix S3
The flow rate of each hot user after a period of time is x(1)，
X is then(1)＝(x1 (1)，……，xn (1))；
Medicine for curing acute respiratory diseases
Wherein a isij (0)Indicating consumption of hot user j per flow supplying hot user i unitsaij (0)Per unit flow, can obtain, x(0)＝x(1)A，
Where A is (a)ij (0)) I is more than or equal to 1, j is less than or equal to n, and A is a flow influence coefficient matrix of the first time period;
iv, obtaining heat flow relation of each user S4
If the influence coefficient matrix A of each heat user flow is not changed by time, continuously executing the operation for l times to obtain the relationship of each heat user flow obtained for the l time: x is the number of(l)＝x(0)A-l；
V. obtaining distribution ratio S5 with shortest adjustment time
The maximum increase factor λ corresponding to a and each flow distribution ratio x satisfy the following relationship: x is equal to x,
can be obtained as follows
To illustrate the flow rate will be
Is increased by multiple times, and the increase rate cannot exceed
And the growth rate is unique, and the corresponding flow distribution ratio x is the flow distribution ratio that minimizes the adjustment time.
In step ii, the change of the pipe network in the heating system is the change of the flow distribution.
In step v the flow impact coefficient matrix a is a non-negative irreducible matrix.
The unit of hot user i in step i is denoted pi, e.g. hot user is denoted by flow rate, then pi is t/h.
The first period in step ii is a heating relaxation period.
The method aims at the time used in the process from the beginning of adjustment to the end of adjustment of the heating system, and obtains the shortest adjustment time of the heating system as long as the flow of each user of the system is distributed according to the flow distribution proportion x.
Claims (5)
1. An adjustment method for minimizing adjustment time of a heating system, characterized in that: the method comprises the following steps:
numbering of thermal users in a heating system
Arranging all heat users in the same heat supply system according to numbers, and counting the number as 1,2,3, … …, i, j … …, n;
(ii) performing initial flow allocation to hot users and performing a first time period adjustment
Assuming an initial flow allocation x, x is (x)1 (0)，……，xn (0))；
Wherein x is1 (0)Initial traffic for user 1;
xn (0)initial traffic for user n;
the first time period sets the number of the hot users j to be distributed to the hot users i as xij (0)；
(iii) obtaining a first time period flow influence coefficient matrix
The flow rate of each hot user after a period of time is x(1)，
X is then(1)＝(x1 (1)，……，xn (1))；
Medicine for curing acute respiratory diseases
Wherein a isij (0)A representing consumption of the hot user j per flow rate of i units supplied to the hot userij (0)Per unit flow, can obtain, x(0)＝x(1)A，
Where A is (a)ij (0)) I is more than or equal to 1, j is less than or equal to n, and A is a flow influence coefficient matrix of the first time period;
(iv) obtaining a heat flow relationship for each user
If the influence coefficient matrix A of each heat user flow is not changed by time, continuously executing the operation for l times to obtain the relationship of each heat user flow obtained for the l time: x is the number of(l)＝x(0)A-l；
(v) obtaining the distribution ratio for which the adjustment time is shortest
The maximum increase factor λ corresponding to a and each flow distribution ratio x satisfy the following relationship: x is equal to x,
can be obtained as follows
To illustrate the flow rate will be
Is increased by multiple times, and the increase rate cannot exceed
And the growth rate is unique, and the corresponding flow distribution ratio x is the flow distribution ratio that minimizes the adjustment time.
2. A regulation method for minimising the regulation time of a heating system according to claim 1, characterized in that: in step (ii), the change of the pipe network in the heating system is the change of the flow distribution.
3. A regulation method for minimising the regulation time of a heating system according to claim 1, characterized in that: in step (v) the flow impact coefficient matrix a is a non-negative irreducible matrix.
4. A regulation method for minimising the regulation time of a heating system according to claim 1, characterized in that: the unit of hot user i in step (i) is represented by pi, and the unit of hot user i is represented by flow rate, then pi is t/h.
5. A regulation method for minimising the regulation time of a heating system according to claim 1, characterized in that: the first period in step (ii) is a heating relaxation period.
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| DE3043652C2 (en) * | 1979-11-30 | 1986-06-05 | Csöszerelöipari Vállalat, Budapest | Method for setting the volume flow in a system of interlinked flow circuits |
| CN101975628B (en) * | 2010-09-09 | 2011-12-28 | 河南众源系统工程有限公司 | Real-time effective heat power distribution method |
| CN105783112A (en) * | 2016-04-13 | 2016-07-20 | 华北电力大学（保定） | Intelligent scheduling and operation planning method for centralized heating system with multiple heat sources |
| CN106958855B (en) * | 2017-03-31 | 2019-06-11 | 常州英集动力科技有限公司 | The hydraulically balanced model predictive control method of heating system and system |
| CN107559945A (en) * | 2017-09-25 | 2018-01-09 | 北京京源水仪器仪表有限公司 | A kind of waterpower self-regulation heating system and self-adjusting method |
| CN107726427B (en) * | 2017-10-20 | 2023-06-20 | 河北建筑工程学院 | Temperature control method of heat storage device and heat supply system |
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Effective date of registration: 20220907 Address after: No. 114, Area E, Building 6, Life Science Park, No. 8 Shenkong Road, Zhangjiakou High-tech Industrial Development Zone, Hebei, Zhangjiakou City, Hebei Province, 076250 Patentee after: Hebei Zerui energy saving new energy Co.,Ltd. Address before: No. 13 Chaoyang Street, Zhangjiakou, Hebei, Hebei Patentee before: HEBEI University OF ARCHITECTURE |
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Denomination of invention: A regulation method to minimize the regulation time of heating system Effective date of registration: 20230215 Granted publication date: 20200818 Pledgee: Bank of China Limited Zhangjiakou Qiaoxi Sub-branch Pledgor: Hebei Zerui energy saving new energy Co.,Ltd. Registration number: Y2023980032677 |