CN112484128A - Heat exchange station water pump adaptation method - Google Patents
Heat exchange station water pump adaptation method Download PDFInfo
- Publication number
- CN112484128A CN112484128A CN202011355984.7A CN202011355984A CN112484128A CN 112484128 A CN112484128 A CN 112484128A CN 202011355984 A CN202011355984 A CN 202011355984A CN 112484128 A CN112484128 A CN 112484128A
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- China
- Prior art keywords
- circulating pump
- exchange station
- heat
- heat exchange
- heat load
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Classifications
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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
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
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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
- F24D19/1048—Counting of energy consumption
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a heat exchange station water pump adaptation method, which comprises the following steps of firstly, carrying out data detection and analysis in a heat exchange station, and determining the actual heating heat load of the heat exchange station; secondly, recalculating the pipe network resistance according to the comparison between the actual heating heat load and the heating design heat load of the heat exchange station in the first step; thirdly, replacing an application circulating pump with different equipment parameters from the index circulating pump according to the comparison result of the second step so as to match the actual heating heat load and the actual pipe network resistance; and fourthly, starting the index circulating pump when the actual heating heat load reaches the heating design heat load of the heat exchange station. The invention can reduce energy consumption, avoid energy waste and improve heat supply efficiency.
Description
Technical Field
The invention relates to the field of operation of a plurality of heat exchange stations or water pumps, in particular to a heat exchange station water pump adaptation method.
Background
The heat exchange station is used for producing and installing equipment according to design standards, in the field operation process, the capacity of the equipment of the heat exchange station is obviously larger due to low heating rate, and even under the condition of energy-saving measures such as a frequency converter, the energy consumption is higher, so that the energy waste is caused.
At present, the heat exchange station of a community invests less heat load at the early stage, and the design load is finally reached along with the rise of the survival rate. However, the equipment parameters in the heat exchange station are configured according to the design load, which is seriously inconsistent with the early load, and causes resource waste.
Therefore, how to provide a heat exchange station water pump adapting method which can improve the heating rate, reduce the energy consumption and save resources is a problem that needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of this, the invention provides a heat exchange station water pump adaptation method, which can reduce energy consumption and improve resource utilization rate.
In order to achieve the purpose, the invention adopts the following technical scheme: a heat exchange station water pump adaptation method comprises the first step of carrying out data detection and analysis in a heat exchange station to determine the actual heating heat load of the heat exchange station, wherein the actual heating heat load refers to the heat supplied to a building by a heating system in unit time at a certain outdoor temperature t1 and in order to reach the required room temperature t2, and the actual heating heat load changes along with the change of the heat gained and lost by the building; secondly, recalculating the pipe network resistance according to the comparison between the actual heating heat load obtained in the first step and the heating design heat load of the heat exchange station; thirdly, according to the recalculation of the pipe network resistance in the second step, replacing an application circulating pump which has different parameters with an index circulating pump and is matched with the actual heating heat load and the actual pipe network resistance, wherein the index circulating pump is a circulating pump matched with the design standard of the heating design heat load of the heat exchange station; and fourthly, starting the index circulating pump when the actual heating heat load reaches the heating design heat load of the heat exchange station.
The invention has the beneficial effects that: according to the invention, through detection and analysis of the operation condition of the heat exchange station, the matched circulating pump equipment is selected, energy is saved, and energy waste is avoided.
Preferably, in the third step, the index circulating pump and the application circulating pump are connected in parallel with the pipe network, and the application circulating pump or the index circulating pump is started according to the actual heat load of the heat supply building.
Preferably, the formula for calculating the pipe network resistance in the second step is as follows: r ═ λ/D (ν ^2 ^ γ/2 g); formula 2: p ═ R × L, where R in formula 1 is the on-way frictional resistance; lambda is a resistance coefficient; d is the diameter of the pipeline; v is the flow rate; gamma is density; g is the acceleration of gravity, and P in the formula 2 is the pressure; r is the on-way frictional resistance; l is the length of the pipeline.
Preferably, in the second step, the heating design heat load calculation formula, equation 3: qn is Qf × F, where Qn in equation 3 is the heating design heat load; qf is the heating area heat index; f is the area of the building in the community.
Preferably, in the fourth step, the actual heating heat load is equal to the cell heat rate × the heating design heat load.
Preferably, the calculation formulas of the index circulating pump and the lift of the circulating pump are as follows: formula 4: h0 ═ HI + H2+ H3, where H0 in formula 4 is the head of the circulating pump; HI is the pressure loss inside the boiler room; h2 is the internal pressure loss of the user; h3 is the pressure loss of the outdoor water supply and return pipe network.
Preferably, the rated power of the application circulating pump is smaller than that of the index circulating pump.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments 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.
The embodiment of the invention provides a heat exchange station water pump adaptation method, which comprises the following steps
Firstly, data detection and analysis are carried out in a heat exchange station, and the actual heating heat load of the heat exchange station is determined, wherein the actual heating heat load refers to the heat which is supplied to a building by a heating system in unit time in order to reach a required room temperature t2 under a certain outdoor temperature t1, and the actual heating heat load changes along with the change of the heat gain and loss of the building;
secondly, recalculating the pipe network resistance according to the comparison between the actual heating heat load obtained in the first step and the heating design heat load of the heat exchange station;
thirdly, according to the recalculation of the pipe network resistance in the second step, replacing an application circulating pump which has different parameters with an index circulating pump and is matched with the actual heating heat load and the actual pipe network resistance, wherein the index circulating pump is a circulating pump matched with the design standard of the heating design heat load of the heat exchange station;
and fourthly, starting the index circulating pump when the actual heating heat load reaches the heating design heat load of the heat exchange station.
Specifically, in the third step, the index circulating pump and the application circulating pump are connected in parallel with the pipe network, and the application circulating pump or the index circulating pump is started according to the actual heat load of the heat supply building.
More specifically, the calculation formula of the pipe network resistance in the second step is as follows: r ═ λ/D (ν ^2 ^ γ/2 g); formula 2: p ═ R × L, where R-in-path frictional resistance in formula 1; lambda-drag coefficient; d-the diameter of the pipeline; v-flow rate; a gamma-density; g-acceleration of gravity, P-pressure in equation 2; r-on-way frictional resistance; l-pipe length.
Further, the heating design heat load calculation formula in the second step, formula 3: qn is Qf × F, where Qn in equation 3 is the heating design heat load; qf is the heating area heat index; f is the area of the building in the community.
Further, in the fourth step, the actual heating heat load is equal to the cell heat rate × the heating design heat load.
Furthermore, the calculation formulas of the index circulating pump and the lift of the application circulating pump are as follows: formula 4: h0 ═ HI + H2+ H3, where H0 in formula 4 is the head of the circulating pump; HI is the pressure loss inside the boiler room; h2 is the internal pressure loss of the user; h3 is the pressure loss of the outdoor water supply and return pipe network.
Specifically, the rated power of the application circulating pump is smaller than the rated power of the index circulating pump.
The heat index is an important parameter in the design of heat supply engineering, and directly influences and determines the external heat supply capacity of a heat source. However, due to the different properties of the buildings such as houses, offices, schools, plants, etc. in cities, the heat index is also different.
For urban central heating, the heating range is wide, the heating area is very large, the heating heat consumption of all single buildings is lacked and difficult to count, and the heat load of each building cannot be calculated in detail. The calculation of the heat load of a district heating building is therefore often carried out by means of an estimation method. The heating design heat load calculation formula in the invention is as follows; qn is Qf × F; qn is the heating design heat load; qf is the heating area heat index; f is the area of the building in the community, the calculation is simple and convenient, and the error is small.
Because the circulating pump matched with the actual operation condition of the heat exchange station is replaced, the heat is fully supplied by the skill, the redundant heat is not lost, the heat supply efficiency is improved, the survival rate is improved, the index circulating pump and the application circulating pump are used for adjusting the dosage, the energy consumption is reduced while the heating effect is met, and the use fund is reduced because the application circulating pump with lower power relative to the index circulating pump is prepared.
For the device and the using method disclosed by the embodiment, the description is simple because the device and the using method correspond to the method disclosed by the embodiment, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use 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 (7)
1. A heat exchange station water pump adaptation method is characterized by comprising
Firstly, data detection and analysis are carried out in a heat exchange station, and the actual heating heat load of the heat exchange station is determined, wherein the actual heating heat load refers to the heat which is supplied to a building by a heating system in unit time in order to reach a required room temperature t2 under a certain outdoor temperature t1, and the actual heating heat load changes along with the change of the heat gain and loss of the building;
secondly, recalculating the pipe network resistance according to the comparison between the actual heating heat load obtained in the first step and the heating design heat load of the heat exchange station;
thirdly, according to the recalculation of the pipe network resistance in the second step, replacing an application circulating pump which has different parameters with an index circulating pump and is matched with the actual heating heat load and the actual pipe network resistance, wherein the index circulating pump is a circulating pump matched with the design standard of the heating design heat load of the heat exchange station;
and fourthly, starting the index circulating pump when the actual heating heat load reaches the heating design heat load of the heat exchange station.
2. The heat exchange station water pump adapting method according to claim 1, wherein in the third step, the index circulating pump and the application circulating pump are connected in parallel with the pipe network, and the application circulating pump or the index circulating pump is started according to the actual heat load of the heat supply building.
3. The heat exchange station water pump adapting method according to claim 1, wherein in the second step, the calculation formula of the pipe network resistance is as follows: r ═ λ/D (ν ^2 ^ γ/2 g); formula 2: p ═ R × L, where R in formula 1 is the on-way frictional resistance; lambda is a resistance coefficient; d is the diameter of the pipeline; v is the flow rate; gamma is density; g is the acceleration of gravity, and P in the formula 2 is the pressure; r is the on-way frictional resistance; l is the length of the pipeline.
4. The adaptation method of the water pump of the heat exchange station as claimed in claim 3, wherein in the second step, the heating design heat load calculation formula is as follows: Qn-Qf, where Qn-heating design heat load in equation 3; qf is the heating area heat index; f is the area of the building in the community.
5. The method for adapting a water pump of a heat exchange station according to claim 4, wherein in the fourth step, an actual heating heat load is a district heat rate x a heating design heat load.
6. The heat exchange station water pump adapting method according to claim 5, wherein the target circulating pump and the head calculation formula of the applied circulating pump are both: formula 4: h0 ═ HI + H2+ H3, where H0 in formula 4 is the head of the circulating pump; HI is the pressure loss inside the boiler room; h2 is the internal pressure loss of the user; h3 is the pressure loss of the outdoor water supply and return pipe network.
7. The heat exchange station water pump adapting method according to any one of claims 1 to 6, wherein the rated power of the application circulating pump is smaller than that of an index circulating pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011355984.7A CN112484128A (en) | 2020-11-26 | 2020-11-26 | Heat exchange station water pump adaptation method |
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| CN202011355984.7A CN112484128A (en) | 2020-11-26 | 2020-11-26 | Heat exchange station water pump adaptation method |
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| CN112484128A true CN112484128A (en) | 2021-03-12 |
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| CN202011355984.7A Pending CN112484128A (en) | 2020-11-26 | 2020-11-26 | Heat exchange station water pump adaptation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468216A (en) * | 2022-11-15 | 2022-12-13 | 河北工大科雅能源科技股份有限公司 | Control method and device of heating system |
Citations (7)
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| CN101211169A (en) * | 2007-12-21 | 2008-07-02 | 哈尔滨工业大学 | Minimum conveying energy consumption heat supply regulating method |
| CN103471179A (en) * | 2013-10-10 | 2013-12-25 | 张久明 | Energy-saving heat supply method and energy-saving system for circulating pumps |
| EP2913594A1 (en) * | 2014-02-28 | 2015-09-02 | Robert Bosch Gmbh | Method for operating a heating system with no buffer storage, in particular for guaranteeing safe and correct operation |
| CN105369847A (en) * | 2014-08-19 | 2016-03-02 | 上海东方威尔节能技术有限公司 | Integral energy-saving optimization method for circulating water system |
| CN106931600A (en) * | 2017-03-17 | 2017-07-07 | 深圳市云科设计咨询服务有限公司 | A kind of method for determining building air-conditioning pump energy saving operating scheme |
| JP2018004130A (en) * | 2016-06-29 | 2018-01-11 | 三菱電機株式会社 | Hot water heat source machine |
| CN109945269A (en) * | 2019-04-04 | 2019-06-28 | 尚东奎 | A kind of heat exchange station energy-saving operating method |
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2020
- 2020-11-26 CN CN202011355984.7A patent/CN112484128A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101211169A (en) * | 2007-12-21 | 2008-07-02 | 哈尔滨工业大学 | Minimum conveying energy consumption heat supply regulating method |
| CN103471179A (en) * | 2013-10-10 | 2013-12-25 | 张久明 | Energy-saving heat supply method and energy-saving system for circulating pumps |
| EP2913594A1 (en) * | 2014-02-28 | 2015-09-02 | Robert Bosch Gmbh | Method for operating a heating system with no buffer storage, in particular for guaranteeing safe and correct operation |
| CN105369847A (en) * | 2014-08-19 | 2016-03-02 | 上海东方威尔节能技术有限公司 | Integral energy-saving optimization method for circulating water system |
| JP2018004130A (en) * | 2016-06-29 | 2018-01-11 | 三菱電機株式会社 | Hot water heat source machine |
| CN106931600A (en) * | 2017-03-17 | 2017-07-07 | 深圳市云科设计咨询服务有限公司 | A kind of method for determining building air-conditioning pump energy saving operating scheme |
| CN109945269A (en) * | 2019-04-04 | 2019-06-28 | 尚东奎 | A kind of heat exchange station energy-saving operating method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115468216A (en) * | 2022-11-15 | 2022-12-13 | 河北工大科雅能源科技股份有限公司 | Control method and device of heating system |
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Application publication date: 20210312 |
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