CN111829044A - Method for realizing on-off time area heat sharing by adopting continuous opening degree to control temperature control valve - Google Patents
Method for realizing on-off time area heat sharing by adopting continuous opening degree to control temperature control valve Download PDFInfo
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- CN111829044A CN111829044A CN202010735134.3A CN202010735134A CN111829044A CN 111829044 A CN111829044 A CN 111829044A CN 202010735134 A CN202010735134 A CN 202010735134A CN 111829044 A CN111829044 A CN 111829044A
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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
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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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
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a method for realizing on-off time area heat sharing by adopting a temperature control valve with continuous opening degree, and relates to the technical field of heating. The scheme is as follows: carrying out nonlinear transformation processing on the opening of the valve to enable the opening of the valve and the flow passing through the valve to form a linear relation; the product of the linear opening proportion and the time of the heat supply temperature control valve is used as the accumulated amount, and the accumulated amount is used as the valve opening time Toi which participates in apportionment; and (3) taking Toi in the step (2) as the accumulated opening time of the temperature control valve of the ith user in the apportionment period, and then calculating the apportioned heat of the user by adopting an on-off time area apportionment method. The invention solves the problem that the valve with continuous opening can not be used as the temperature control actuator of the time area allocation method in the traditional calculation method, the temperature control effect is smoother, the impact on a pipe network in the temperature control process is almost zero, the pipe network is continuously balanced, and the more ideal energy-saving effect is achieved.
Description
Technical Field
The embodiment of the invention relates to the technical field of heating, in particular to a method for realizing on-off time area heat sharing by adopting a continuous opening degree control temperature control valve.
Background
The heat metering system of the on-off time area method is one of the main heat metering modes at present, and the metering data of the large-caliber heat meter is shared by adopting the weighted average of the product of the opening time of the heat supply temperature control valve and the housing area, which is the mathematical basis of the on-off time area method. The apportionment algorithm has the advantages that the heat metering problem and the heat supply energy saving are skillfully combined, on one hand, the difficulty that the quality of a user heat meter is too excessive and can not bear the basis of trade settlement is avoided, on the other hand, a heat supply temperature control device is introduced into a heat supply system, and the apportionment algorithm is similar to a temperature control device required by an air conditioner, so that the energy saving effect can be well realized, and the excessive heat supply is avoided. The 'on-off time area method' is a heat sharing algorithm, the basis of which is the time of the users for getting heat from the heat supply pipe network, the housing area and the achieved heat supply effect, whether the sharing is fair or not by the on-off time area method is based on the basic balance of the pressure of the heat supply pipeline in the subsystems participating in the sharing, and the flow of hot water flowing into each house when the valve is opened is basically consistent.
When the heat allocation algorithm is invented, the temperature control valve which is commonly adopted in China has two states of opening and closing, so that the physical quantity of the accumulated opening time of the valve is introduced into the algorithm. However, with the deep implementation of heat supply and temperature control, more and more technicians find that the impact on a heating pipe network is large when a valve which is only in an opening state and a closing state is opened and closed, the temperature control is not smooth enough, and the energy-saving effect is greatly discounted. Therefore, the valve with continuous opening control is adopted as a heat supply temperature control actuator in the industry, and the heat supply temperature control actuator has the advantages of smooth flow variation, small impact on a pipe network, accurate temperature control and remarkable energy-saving effect. However, there is a certain contradiction between the continuous-opening-degree temperature-controlled actuator valve and the time-area allocation method because, in a temperature control system using a continuous-opening-degree valve, the valve is not clearly opened and closed, and therefore, the physical quantity, i.e., the so-called cumulative valve-on time, is inaccurate. Therefore, it is considered that the time-area allocation method cannot be realized when the continuous-opening temperature-controlled actuator valve is used.
Based on the defects in the prior art, the invention provides an improved method for weighting and averagely distributing heat by multiplying the opening time of a valve by the housing area, so that the temperature control effect is smoother, and a more ideal energy-saving effect is achieved.
Disclosure of Invention
The embodiment of the invention provides a method for realizing on-off time area heat sharing by adopting a continuous opening degree control temperature control valve, which solves the problem that the continuous opening degree valve cannot be used as a temperature control actuator of a time area sharing method in the heat sharing of the conventional 'on-off time area sharing method'.
In order to solve the technical problems, the invention discloses the following technical scheme:
the method for realizing the heat sharing of the on-off time area by adopting the continuous opening degree to control the temperature control valve comprises the following steps:
step 1, carrying out nonlinear transformation processing on the valve opening to enable the valve opening and the flow flowing through the valve to be in a linear relation, namely, the following formula is satisfied:
V＝K*Opr (1)
under the condition that the pressure difference is not changed, V is the flow passing through the valve, K is a proportionality coefficient, and Opr is the linear opening proportion of the temperature control valve;
step 2, adopting the product of the linearized opening proportion and the time of the heat supply temperature control valve as an accumulated quantity, and taking the accumulated quantity as the valve opening time allocated in advance, namely satisfying the following formula:
Toi＝∫Opri*Ti (2)
wherein, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportionment period, Opri is the flow linearization opening proportion of the temperature control valve of the ith user, and Ti is the time for maintaining the Opri opening proportion of the temperature control valve of the ith user;
and 3, taking Toi in the step 2 as the accumulated opening time of the temperature control valve of the ith user in the apportionment period, and then calculating the apportioned heat of the user by adopting an on-off time area apportionment method.
In the method for realizing heat sharing by controlling the temperature control valve with continuous opening degree, the on-off time area sharing method is adopted in step 3 to calculate the heat sharing of the user, and the following formula is specifically utilized:
Qi＝E*(Toi*Si)/∑(Toi*Si) (3)
wherein Qi is the apportioned heat of the ith user, E is the measurement data of the shared large-caliber heat meter in the apportioning period, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportioning period, and Si is the housing area of the ith user.
In the method for realizing the heat sharing of the on-off time area by adopting the continuous opening control temperature control valve, furthermore, the Toi is a time variable corrected by Opri and has a unit of second, minute or hour; the Opri is the valve opening after the physical actual opening is linearized.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
1. according to the method for realizing the heat sharing of the on-off time area by adopting the continuous opening degree control temperature control valve, the introduced valve opening time is the integral of the product of the linearized opening proportion after the flow linearization correction and the valve opening time, the valve opening degree is changed into the flow linearization opening degree instead of the physical actual opening degree, the accumulated valve opening time is not only the time integral any more, but the proportional relation between the volume flow passing through the valve in the sharing period and the improved valve opening time is still maintained when the heat supply pressure difference is not changed, therefore, the accumulated valve opening time after the flow linearization opening degree correction can still continue to adopt the traditional time area sharing method to carry out the heat sharing calculation, and has clear mathematical and physical meanings.
2. The method for realizing on-off time area heat sharing by adopting the continuous opening degree control temperature control valve solves the problem that the continuous opening degree valve cannot be used as a temperature control actuator of a time area sharing method because the physical quantity of accumulated opening time of the valve cannot be output in a temperature control system of the continuous opening degree control in the traditional calculation method, and opens the gate of the continuous opening degree valve for the time area sharing method.
3. According to the method for realizing the on-off time area heat sharing by adopting the continuous opening degree control temperature control valve, the temperature control effect is smoother, and the heat supply comfort level and the user satisfaction degree are improved; secondly, the impact of the method on the pipe network in the temperature control process is almost zero, the pipe network is continuously balanced, and a more ideal energy-saving effect is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a flowchart of a method for realizing on-off time area heat sharing by controlling a temperature control valve with a continuous opening degree according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a flowchart of a method for implementing on-off time area heat sharing by using a continuous opening degree control thermostat valve according to an embodiment of the present application.
Referring to fig. 1, the implementation steps of this embodiment are as follows:
step 1, carrying out nonlinear transformation processing on the valve opening to enable the valve opening and the flow flowing through the valve to be in a linear relation, namely, the following formula is satisfied:
V＝K*Opr (1)
under the condition that the pressure difference is not changed, V is the flow passing through the valve, the unit of V is m3/h, K is a proportionality coefficient, and Opr is the linear opening proportion of the temperature control valve;
generally, an electric ball valve adopted in a heat supply temperature control system does not have a linear regulation relation of opening degree-flow rate, and in order to realize valve linearization control, the linear transformation of a curve function is adopted on an algorithm in the step 1, and the linearization of the flow rate is realized through the nonlinear transformation of the opening degree.
Step 2, adopting the product of the linearized opening proportion and the time of the heat supply temperature control valve as an accumulated quantity, and taking the accumulated quantity as the valve opening time allocated in advance, namely satisfying the following formula:
Toi＝∫Opri*Ti (2)
wherein, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportionment period, Opri is the flow linearization opening proportion of the temperature control valve of the ith user, and Opri is the valve opening after the physical actual opening is linearized; ti is the time for maintaining the Opri opening proportion of the temperature control valve of the ith user;
as can be seen from the above, Toi is still a time variable, and is a time variable corrected by Opri, and the physical unit thereof is a time unit, and can be selected as second, minute, hour, and the like, and minute is selected as the unit.
Step 3, taking Toi in the step 2 as the accumulated opening time of the temperature control valve of the ith user in the apportionment period, and then calculating the apportioned heat of the user by adopting an on-off time area apportionment method, wherein the following formula is specifically utilized:
Qi＝E*(Toi*Si)/∑(Toi*Si) (3)
wherein Qi is the apportioned heat of the ith user, E is the measurement data of the shared large-caliber heat meter in the apportioning period, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportioning period, and Si is the housing area of the ith user.
The method for realizing on-off time area heat sharing by adopting the continuous opening degree control temperature control valve provided in the embodiment is different from the traditional time area heat sharing method in that the introduced valve opening time is the integral of the product of the linearized opening proportion after flow linearization correction and the valve opening time, the valve opening is the opening degree of flow linearization, the accumulated valve opening time is not only the integral of time, but the proportional relation between the volume flow passing through the valve in the sharing period and the improved valve opening time is still maintained when the heat supply pressure difference is not changed, therefore, the accumulated valve opening time after flow linearization correction can still continue to adopt the traditional time area heat sharing method to carry out heat sharing calculation, and the problem that the continuous opening valve can not be used as a temperature control actuator of the time area sharing method in the traditional calculation method is solved, the temperature control effect is smoother, the impact on the pipe network in the temperature control process is almost zero, the pipe network is continuously balanced, and a more ideal energy-saving effect is achieved.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The method for realizing the heat sharing of the on-off time area by adopting the continuous opening degree to control the temperature control valve is characterized by comprising the following steps of:
step 1, carrying out nonlinear transformation processing on the valve opening to enable the valve opening and the flow flowing through the valve to be in a linear relation, namely, the following formula is satisfied:
V＝K*Opr (1)
under the condition that the pressure difference is not changed, V is the flow passing through the valve, K is a proportionality coefficient, and Opr is the linear opening proportion of the temperature control valve;
step 2, adopting the product of the linearized opening proportion and the time of the heat supply temperature control valve as an accumulated quantity, and taking the accumulated quantity as the valve opening time allocated in advance, namely satisfying the following formula:
Toi＝∫Opri*Ti (2)
wherein, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportionment period, Opri is the flow linearization opening proportion of the temperature control valve of the ith user, and Ti is the time for the temperature control valve of the ith user to maintain the Opri linearization opening proportion;
and 3, taking Toi in the step 2 as the accumulated opening time of the temperature control valve of the ith user in the apportionment period, and then calculating the apportioned heat of the user by adopting an on-off time area apportionment method.
2. The method for realizing on-off time area heat sharing by adopting the continuous opening degree control temperature control valve according to claim 1, wherein the on-off time area sharing method is adopted in the step 3 to calculate the user heat sharing, and the following formula is specifically utilized:
Qi＝E*(Toi*Si)/∑(Toi*Si) (3)
wherein Qi is the apportioned heat of the ith user, E is the measurement data of the shared large-caliber heat meter in the apportioning period, Toi is the accumulated opening time of the temperature control valve of the ith user in the apportioning period, and Si is the housing area of the ith user.
3. The method for realizing on-off time area sharing heat by adopting the continuously-opened temperature control valve as claimed in claim 1, wherein the Toi is a time variable corrected by Opri and has the unit of seconds, minutes or hours.
4. The method for realizing on-off time area sharing heat by adopting the continuous opening degree control temperature control valve as claimed in claim 3, wherein Opri is the valve opening degree after the physical actual opening degree is linearized.
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| CN202010735134.3A CN111829044A (en) | 2020-07-28 | 2020-07-28 | Method for realizing on-off time area heat sharing by adopting continuous opening degree to control temperature control valve |
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| CN202010735134.3A CN111829044A (en) | 2020-07-28 | 2020-07-28 | Method for realizing on-off time area heat sharing by adopting continuous opening degree to control temperature control valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110940A (en) * | 2021-10-14 | 2022-03-01 | 中建三局第三建设工程有限责任公司 | Intelligent electric regulating valve adjusting method and system for air-conditioning water system |
| CN115371129A (en) * | 2022-10-25 | 2022-11-22 | 山东辰智电子科技有限公司 | Thermal metering system, thermal metering method, storage medium and electronic device |
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| CN101922944A (en) * | 2009-06-11 | 2010-12-22 | 林秀麟 | Heating fee allocation method based on heating time/area of user |
| CN103225845A (en) * | 2013-04-10 | 2013-07-31 | 睿能太宇（沈阳）能源技术有限公司 | Centralized heating respective heat distribution measuring system and method |
| CN103557556A (en) * | 2013-11-12 | 2014-02-05 | 洪莲 | Heat apportionment method and system of central heating system under on-off regulation mode |
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2020
- 2020-07-28 CN CN202010735134.3A patent/CN111829044A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349755A (en) * | 1966-03-09 | 1967-10-31 | Avy L Miller | Recirculating flow water heater |
| CN200979412Y (en) * | 2006-11-20 | 2007-11-21 | 河北北方绿野居住环境发展有限公司 | A charging system for heating with individual room temperature control |
| CN101922944A (en) * | 2009-06-11 | 2010-12-22 | 林秀麟 | Heating fee allocation method based on heating time/area of user |
| CN103225845A (en) * | 2013-04-10 | 2013-07-31 | 睿能太宇（沈阳）能源技术有限公司 | Centralized heating respective heat distribution measuring system and method |
| CN103557556A (en) * | 2013-11-12 | 2014-02-05 | 洪莲 | Heat apportionment method and system of central heating system under on-off regulation mode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110940A (en) * | 2021-10-14 | 2022-03-01 | 中建三局第三建设工程有限责任公司 | Intelligent electric regulating valve adjusting method and system for air-conditioning water system |
| CN115371129A (en) * | 2022-10-25 | 2022-11-22 | 山东辰智电子科技有限公司 | Thermal metering system, thermal metering method, storage medium and electronic device |
| CN115371129B (en) * | 2022-10-25 | 2023-02-28 | 山东辰智电子科技有限公司 | Thermal metering system, thermal metering method, storage medium and electronic device |
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Application publication date: 20201027 |