RU96114663A - AUTOMATED INFORMATION SYSTEM FOR MEASURING AND ACCOUNTING THE COSTS OF THE HEAT CARRIER AND HEAT IN THE HEAT SUPPLY SYSTEMS - Google Patents
AUTOMATED INFORMATION SYSTEM FOR MEASURING AND ACCOUNTING THE COSTS OF THE HEAT CARRIER AND HEAT IN THE HEAT SUPPLY SYSTEMSInfo
- Publication number
- RU96114663A RU96114663A RU96114663/06A RU96114663A RU96114663A RU 96114663 A RU96114663 A RU 96114663A RU 96114663/06 A RU96114663/06 A RU 96114663/06A RU 96114663 A RU96114663 A RU 96114663A RU 96114663 A RU96114663 A RU 96114663A
- Authority
- RU
- Russia
- Prior art keywords
- heat
- pump
- network
- pressure
- power
- Prior art date
Links
- 238000005086 pumping Methods 0.000 claims 9
- 239000002826 coolant Substances 0.000 claims 5
- 239000000969 carrier Substances 0.000 claims 4
- 238000010438 heat treatment Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 2
- 238000004458 analytical method Methods 0.000 claims 1
- 230000003247 decreasing Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 229920001643 poly(ether ketones) Polymers 0.000 claims 1
- 230000003068 static Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Claims (3)
расходные коэффициенты Мн по каждой насосной установки
или
подачу теплоносителя по каждой насосной установке Qп и в целом по сети
возврат теплоносителя Qв по каждой насосной установке и в целом по сети
расход теплоносителя на горячее водоснабжение Qгв и потери в сети
Qгв = Qп - Qв = Qпн (м3/с);
подача тепла Gп в тепловую сеть
Gп = с Qпρп Тп (ккал/с);
возврат тепла Gb из тепловой сети
Gb = c Qвρв Tв (ккал/с);
расход тепла в сети G
G = Gп - Gb (ккал/c);
где Pc - активная мощность потребляемая электродвигателем насосной установки, кВт;
Mн - расходные коэффициенты по каждой насосной установке, кВт/МПа;
U - линейное напряжение цепи питания электродвигателя насосной установки, кВ;
I - ток в цепи электродвигателем насосной установки; A;
эд - КПД электродвигателя;
эк - эксплуатационный КПД насосной установки;
Pb - давление на выкиде насоса, МПа;
Pb - давление на приеме насоса, МПа;
A, B, E - постоянные коэффициенты для данного типа насосной установки;
cosφ - коэффициент мощности электродвигателя;
i - номер насосной установки;
m - число сетевых насосов;
C - число подпиточных насосов;
λ - номер сетевого насоса;
j - номер подпиточного насоса;
Qпн - подача подпиточных насосов, м3/с;
c - удельная теплоемкость, дж/(кг град);
ρ - плотность теплоносителя, кг/м3;
Тп, Тв - температуры теплоносителя соответственно подаваемого в тепловую сесть и поступающего из тепловой сети.1. An automated information system for measuring and accounting for the flow of heat carrier and heat in the heat supply system, containing feed sources, network, booster, step-down and mixing pump stations at heat sources and the main network equipped with primary sensors connected to a telemechanics system connecting them to the information point, characterized by the fact that at the inlet and outlet of each pump unit included in the heat source and the main part of the heating network, pressure sensors are installed, and in the electric network supplying the electric motors of the pumping units — static power converters or current and voltage sensors, and on common pipelines — coolant temperature sensors, and the outputs of the pressure, power or current and voltage sensors are fed to the input of the data transmission system, the output of which is fed to the information the input of a computer complex containing a data bank on the discharge characteristics of pumping units and the characteristics of pump motors, which in discrete mode is obtained using the primary parameter data transmission network and the data in the data bank, the current and total values of the heat carrier flow and heat are calculated for each pump installation and for the heating network as a whole using the formulas:
flow factors Mn for each pump unit
or
coolant supply for each pump unit Q p and as a whole over the network
return of heat carrier Q in for each pump unit and in the whole network
coolant flow rate for hot water supply Q gv and network losses
RB Q = Q n - Q in = Q mon (m 3 / s);
heat supply G p to the heat network
G p = s Q p ρ p T p (kcal / s);
heat return G b from the heating network
G b = c Q at ρ at T at (kcal / s);
heat consumption in the network G
G = G p - G b (kcal / s);
where P c is the active power consumed by the electric motor of the pumping unit, kW;
M n - expense ratios for each pump unit, kW / MPa;
U is the linear voltage of the power circuit of the electric motor of the pump unit, kV;
I is the current in the circuit by the electric motor of the pump unit; A;
ed - motor efficiency;
ek - operational efficiency of the pumping unit;
P b - pressure on the pump outflow, MPa;
P b - pressure at the pump intake, MPa;
A, B, E - constant coefficients for this type of pumping unit;
cosφ is the power factor of the electric motor;
i is the number of the pump unit;
m is the number of network pumps;
C is the number of make-up pumps;
λ is the number of the mains pump;
j is the number of the feed pump;
Q Mon - feed make-up pumps, m 3 / s;
c is the specific heat, j / (kg deg);
ρ is the density of the coolant, kg / m 3 ;
T p , T in - the temperature of the coolant respectively supplied to the heat source and coming from the heat network.
где Nol - мощность на валу насоса равная
а Po - развиваемое насосом давление, равное
Po = Pb - Pп (МПа);
где Pb, Pп - соответственно давление на выкиде и приеме насосной установки, МПа;
U, I, cosφ,ηэд - соответственно напряжение, ток коэффициент мощности и КПД электродвигателя, далее по паспортным характеристикам насосной установки, на ее начальном участке при нулевой подачи вычисляют расходный коэффициент Mo по формуле
где No и Po - соответственно мощность на валу насоса и давление развиваемое насосом, которые берутся из рабочих характеристик, и вычисляют эксплуатационный коэффициент полезного действия по формуле
при непрерывно работающих насосных установках измерение эксплуатационного коэффициента полезного действия производится один, два раза в год.3. The system according to p. 1, characterized in that to determine the operational efficiency of the pumping unit PEK, turn on its drive motor for one to two minutes with a closed valve on the pump side and measure the value of current and voltage in the power supply circuit of the motor, and pressure on the discharge and intake of the pump and calculate the flow coefficient by the formula
where N ol - the power on the pump shaft is equal
and P o - developed by the pump pressure equal to
P o = P b - P p (MPa);
where P b , P p - respectively, the pressure on the discharge and intake of the pumping unit, MPa;
U, I, cosφ, ηed - respectively voltage, current power factor and motor efficiency, then according to the passport characteristics of the pump installation, at its initial section at zero flow rate, the flow coefficient M o is calculated by the formula
where N o and P o are respectively the power on the pump shaft and the pressure developed by the pump, which are taken from the operating characteristics, and calculate the operational efficiency by the formula
with continuously operating pumping units, the measurement of the operational efficiency is performed once, twice a year.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU96114663A RU2144162C1 (en) | 1996-07-16 | 1996-07-16 | Automated system for measurement and recording of flow rate of heat-transfer agent and heat in heat supply systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU96114663A RU2144162C1 (en) | 1996-07-16 | 1996-07-16 | Automated system for measurement and recording of flow rate of heat-transfer agent and heat in heat supply systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU96114663A true RU96114663A (en) | 1998-10-20 |
| RU2144162C1 RU2144162C1 (en) | 2000-01-10 |
Family
ID=20183557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU96114663A RU2144162C1 (en) | 1996-07-16 | 1996-07-16 | Automated system for measurement and recording of flow rate of heat-transfer agent and heat in heat supply systems |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2144162C1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2473048C1 (en) * | 2011-07-21 | 2013-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный архитектурно-строительный университет" (СГАСУ) | Automated information system for measurement and analysis on real time basis of coolant flow rate on manifold pump stations |
| RU2502923C2 (en) * | 2012-02-22 | 2013-12-27 | Общество с ограниченной ответственностью "ПАТЕНТ при Тульском государственном университете" | Automatic thermal energy production and usage control system |
| EA024411B1 (en) * | 2012-10-02 | 2016-09-30 | Республиканское Унитарное Предприятие "Институт Жилища - Ниптис Им. Атаева С.С." | Method for evaluating overall energy performance of life-support systems in building or group of buildings |
| RU2562782C1 (en) * | 2014-06-18 | 2015-09-10 | ООО "Спецприборкомплектация" | Control system of heat supply facilities |
| RU2580089C1 (en) * | 2014-10-29 | 2016-04-10 | Общество с ограниченной ответственностью Научно-производственное объединение "ЭнергоСистемы" | System for controlling heat supply facilities |
| RU2642038C1 (en) * | 2016-10-14 | 2018-01-23 | Андрей Александрович Пятин | Method of regulation of heat relief for heating buildings and regulation system on its basis (versions) |
| RU2685814C1 (en) * | 2018-06-07 | 2019-04-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва" | Method for determining the optimal heating time of the heating object |
| CN113696371A (en) * | 2021-06-22 | 2021-11-26 | 北京凯米优化科技有限公司 | Intelligent control system applied to PVC drying fluidized bed |
-
1996
- 1996-07-16 RU RU96114663A patent/RU2144162C1/en active
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