CN113158476B - Computer method for adjusting hydraulic balance of heat supply pipe network - Google Patents
Computer method for adjusting hydraulic balance of heat supply pipe network Download PDFInfo
- Publication number
- CN113158476B CN113158476B CN202110460178.4A CN202110460178A CN113158476B CN 113158476 B CN113158476 B CN 113158476B CN 202110460178 A CN202110460178 A CN 202110460178A CN 113158476 B CN113158476 B CN 113158476B
- Authority
- CN
- China
- Prior art keywords
- user
- hydraulic balance
- heating
- pore plate
- pipe network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the technical field of heating pipe networks, and discloses a computer method for adjusting hydraulic balance of a heating pipe network, which comprises the following steps of S1, determining pore plate valves required by actual measurement parameter acquisition; s2, developing a graphic input interface; s3, developing basic parameter input codes and actual measurement parameter input codes; s4, developing a hydraulic balance calculation interface of the heating pipe network; s5, developing a report output interface of the hydraulic balance scheme. The invention inputs various parameters of the heating pipe network into the hydraulic balance calculation system software of the heating pipe network, including pipe diameter, pipe length, heating area, water supply and return temperature, various flow parameters and various differential pressure data, searches the hydraulic balance computer method of the heating pipe network according to the parameters, calculates the sectional area or valve opening value of the valve water flow of each user end node to obtain the hydraulic balance implementation scheme, and after implementation of the scheme, the heating working condition of the heating pipe network reaches the balance state, and has the advantages of quick and accurate adjustment and good balance state.
Description
Technical Field
The invention relates to the technical field of heat supply pipe networks, in particular to a computer method for adjusting hydraulic balance of a heat supply pipe network.
Background
The heat supply network of central heating bears the heat energy transmission and distribution task from the heat source to the heat user, the heat supply network is in a hydraulic imbalance state in the design and construction stage, the hydraulic imbalance problem of the old heat supply network is more prominent due to corrosion, the hydraulic balance adjustment of the heat supply network is an important working content of a heat supply enterprise, mainly, the problem that the indoor temperature is uneven due to unreasonable flow distribution of the heat user is solved, but the resistance characteristic value of the heat supply pipe is very small and has strong jumping performance, the variable with double precision can be stored, the corrosion resistance characteristic value of the pipe network is better determined, the actual resistance characteristic value can be determined only by actually measuring parameters, and therefore, the real hydraulic balance implementation scheme can be solved only by researching and developing a computer method for hydraulic balance adjustment of the heat supply network.
At present, the equipment mainly adopted for hydraulic balance adjustment of the heating pipe network in China comprises a manual flow adjusting valve, a self-operated flow differential pressure control valve, a balance valve with a calibration value and a jet pump, and also comprises an intelligent network dynamic adjustment scheme, wherein the manual flow adjusting valve belongs to a static hydraulic balance adjustment method, and the flow is adjusted by adjusting the opening degree, the backwater temperature is measured as a measurement standard, so that the device has certain adjustment capability and is also an adjustment means widely used at present, but because the flowing water temperature is inert, the adjustment is time-consuming and labor-consuming, the repeated adjustment is needed, and the accuracy cannot meet the requirement at all; the adjustment of the heating pipe network with serious hydraulic imbalance is not guaranteed, and the whole heating period can be adjusted unevenly;
the self-operated flow differential pressure balance valve belongs to the dynamic hydraulic balance regulation category, has high cost, has a regulation effect that only can stay in theory, sets a differential pressure value according to the requirement, regulates opening to control flow, and is a huge heating power pipe network with serious hydraulic imbalance. In actual operation, the valve has a certain differential pressure application range, the limit operation can lose the adjusting capability, when the residual pressure head is smaller, the valve works at the maximum opening, the adjusting capability is lost, the valve becomes a resistance element, the valve adjusting effect is not verified by an effective method, the valve can lose the adjusting function once the channel of the self-supporting element is blocked and the transmission element is blocked due to water quality, and the hydraulic balance state is really only ideal.
The balance valve with calibration value belongs to the static hydraulic balance adjustment category, the adjustment precision is limited, the heating pipe network with serious hydraulic imbalance can not meet the hydraulic balance adjustment requirement, and the practical experience of using the orifice valve and the hydraulic balance method proves that the aperture difference of a unit orifice plate close to a heating power station is 0.1mm, the temperature difference is 2 ℃, and the balance valve with specific calibration value can not reach the adjustment precision of hydraulic balance at all.
The jet pump belongs to the static hydraulic balance regulation category, and the principle is that backwater is reused, flow is increased, heat is reused, and electricity is saved. The cost is high, and the balance can not be ensured. If the water force balance method is used for realizing the small flow and large temperature difference, the same heat supply effect is achieved, and the cost is low.
The intelligent network dynamic regulation scheme belongs to the dynamic hydraulic balance regulation category, the repeated regulation reaches a so-called balance state, the manufacturing cost is high, a wired network, a wireless network or an Internet of things module is required to be built, the communication maintenance cost is high, and the intelligent network dynamic regulation scheme is a high-cost scheme without method support.
Disclosure of Invention
The invention aims to provide a computer method for adjusting hydraulic balance of a heating network, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the method for adjusting the hydraulic balance of the heat supply pipe network by using the computer comprises the following steps:
s1, determining an orifice plate valve required by actual measurement parameter acquisition, changing the aperture size of the orifice plate through the orifice plate valve, accurately controlling the flow of a pipe network, calculating the sectional area of the opening size of the orifice plate under the state of hydraulic balance working conditions, converting the sectional area into an aperture value of the orifice plate, and measuring two pressure measuring small valves at two sides of the orifice plate valve for measuring actual measurement differential pressure parameters at a user side; wherein the measurement of the measured differential pressure parameter at the user side comprises the following steps:
s11, measuring the pressure head of each user before the pipe network system is not provided with any pore plate;
s12, loading the measuring pore plate, and measuring the pressure heads at the user end and the two sides of the pore plate;
s13, dismantling the test pore plate, recording the measured parameters, and completely measuring all the in-home parts, so that five basic parameters including a user pressure head before the pore plate is installed, the user pressure head after the pore plate is installed, pressure heads on two sides of the pore plate, a valve caliber and the aperture of the test pore plate can be obtained at each in-home part, and indirectly calculating the flow rate flowing through the pore plate, the actual flow rate of a user, the resistance characteristic of a user system and the utilization pressure head of the user system through the parameters;
s2, determining various parameters required by a hydraulic balance adjusting computer method of the heating network, developing a graphic input interface, and drawing a logic diagram of the heating network into a computer in detail;
s3, developing basic parameter input codes, inputting pipe diameters and pipe lengths into a computer, establishing connection logic relations of each pipe section, inputting differential pressure, set flow, water density and valve caliber parameters into the computer, developing actual measurement parameter input codes, and inputting the differential pressure of a total port of a heating station, actual measurement flow of an outlet of the heating station, user pressure heads before loading user nodes into a pore plate, user pressure heads after loading into the pore plate, pressure heads on two sides of the pore plate and actual measurement flow parameters of a user side into the computer;
s4, developing a hydraulic balance calculation interface of the heating pipe network, calculating pore plate aperture values of pore plate valves at the user side according to the numerical values of all parameters, and calculating a plurality of groups of balanced pore plate implementation schemes according to the concept of a heating enterprise, wherein each group of scheme is balanced based on system calculation;
s5, developing a report output interface of a hydraulic balance scheme, so that the basis of scientific calculation data of the pore size of the pore plate when the pore plate is perforated is used for processing, exploring a hydraulic balance adjustment computer method based on a heating pipe network according to the steps, developing hydraulic balance calculation system software of the heating pipe network, and integrating the explored hydraulic balance adjustment computer method of the heating pipe network into the software.
As still further aspects of the invention: the flow rate flowing through the orifice plate in the step S13 is calculated as follows:
W 1 ＝(△P 3 /R 1 ) 1/2
wherein W is 1 Flow through the orifice plate in units of: kg/H, deltaP 3 Is a pressure head at two sides of the pore plate, and comprises the following units: KPa, R 1 Is the orifice plate resistance characteristic.
As still further aspects of the invention: the calculation formula of the resistance characteristic of the user system in the step S13 is as follows:
R＝△P 2 /W 1 2
wherein R is the resistance characteristic of the user system, ΔP 2 To fit the orifice plate, the user presses KPa.
As still further aspects of the invention: the calculation formula of the actual flow of the user in the step S13 is as follows:
W 2 ＝(△P 1 /R) 1/2
wherein W is 2 For the actual flow of the user, ΔP 1 To load the orifice plate prior to user press head, units: KPa.
As still further aspects of the invention: the calculation formula of the qualification pressure head of the user system in the step S13 is as follows:
△P＝R*W 2
wherein, deltaP is the qualification pressure head of the user system, the unit is: KPa, W is the user set flow, is the heating area given value, unit: kg/H.
As still further aspects of the invention: and S5, the heat supply pipe network hydraulic balance calculation system software comprises a pipe network graph drawing module, a parameter input calculation module, a balance calculation module and a report module.
Compared with the prior art, the invention has the beneficial effects that:
the hydraulic balance calculation system software of the heating pipe network is input with various parameters of the heating pipe network, including pipe diameter, pipe length, heating area, water supply and return temperature, various flow parameters and various differential pressure data, a hydraulic balance computer method of the heating pipe network is searched according to the parameters, the sectional area or valve opening value of the valve water flow of each user end node is calculated, a hydraulic balance implementation scheme is obtained, after the scheme is implemented, the heating working condition of the heating pipe network is in a balanced state, and the hydraulic balance calculation system software is fast and accurate in adjustment and good in balance state through the high-speed calculation capability of a computer and the research and development of the hydraulic balance method.
Drawings
FIG. 1 is a schematic diagram of a heating network logic diagram drawing interface in a heating network hydraulic balance adjustment computer method;
FIG. 2 is a schematic diagram of a parameter input interface in a heating network hydraulic balance adjustment computer method;
FIG. 3 is a schematic diagram of a hydraulic balance calculation interface in a heating network hydraulic balance adjustment computer method.
Detailed Description
Referring to fig. 1 to 3, in an embodiment of the present invention, a computer method for adjusting hydraulic balance of a heating network is implemented by the following steps:
s1, determining an orifice plate valve required by actual measurement parameter acquisition, changing the aperture size of the orifice plate through the orifice plate valve, accurately controlling the flow of a pipe network, calculating the sectional area of the opening size of the orifice plate under the state of hydraulic balance working conditions, converting the sectional area into an aperture value of the orifice plate, and measuring two pressure measuring small valves at two sides of the orifice plate valve for measuring actual measurement differential pressure parameters at a user side; wherein the measurement of the measured differential pressure parameter at the user side comprises the following steps:
s11, measuring the pressure head of each user before the pipe network system is not provided with any pore plate;
s12, loading the measuring pore plate, and measuring the pressure heads at the user end and the two sides of the pore plate;
s13, dismantling the test pore plate, recording the measured parameters, and completely measuring all the in-home parts, so that five basic parameters including a user pressure head before the pore plate is installed, the user pressure head after the pore plate is installed, pressure heads on two sides of the pore plate, a valve caliber and the aperture of the test pore plate can be obtained at each in-home part, and indirectly calculating the flow rate flowing through the pore plate, the actual flow rate of a user, the resistance characteristic of a user system and the utilization pressure head of the user system through the parameters;
s2, determining various parameters required by a hydraulic balance adjusting computer method of the heating network, developing a graphic input interface, and drawing a logic diagram of the heating network into a computer in detail;
s3, developing basic parameter input codes, inputting pipe diameters and pipe lengths into a computer, establishing connection logic relations of each pipe section, inputting differential pressure, set flow, water density and valve caliber parameters into the computer, developing actual measurement parameter input codes, and inputting the differential pressure of a total port of a heating station, actual measurement flow of an outlet of the heating station, user pressure heads before loading user nodes into a pore plate, user pressure heads after loading into the pore plate, pressure heads on two sides of the pore plate and actual measurement flow parameters of a user side into the computer;
s4, developing a hydraulic balance calculation interface of the heating pipe network, calculating pore plate aperture values of pore plate valves at the user side according to the numerical values of all parameters, and calculating a plurality of groups of balanced pore plate implementation schemes according to the concept of a heating enterprise, wherein each group of scheme is balanced based on system calculation;
s5, developing a report output interface of a hydraulic balance scheme, so that the basis of scientific calculation data of the pore size of the pore plate when the pore plate is perforated is used for processing, exploring a hydraulic balance adjustment computer method based on a heating pipe network according to the steps, developing hydraulic balance calculation system software of the heating pipe network, and integrating the explored hydraulic balance adjustment computer method of the heating pipe network into the software.
Preferentially, the flow rate flowing through the orifice plate in the step S13 is calculated as follows:
W 1 ＝(△P 3 /R 1 ) 1/2
wherein W is 1 Flow through the orifice plate in units of: kg/H, deltaP 3 Is a pressure head at two sides of the pore plate, and comprises the following units: KPa, R 1 Is the orifice plate resistance characteristic.
Preferably, the calculation formula of the resistance characteristic of the user system in step S13 is as follows:
R＝△P 2 /W 1 2
wherein R is the resistance characteristic of the user system, ΔP 2 To fit the orifice plate, the user presses KPa.
Preferentially, the calculation formula of the actual flow of the user in step S13 is as follows:
W 2 ＝(△P 1 /R) 1/2
wherein W is 2 For the actual flow of the user, ΔP 1 To load the orifice plate prior to user press head, units: KPa.
Preferentially, in step S13, the calculation formula of the tariff head of the user system is as follows:
△P＝R*W 2
wherein, deltaP is the qualification pressure head of the user system, the unit is: KPa, W is the user set flow, is the heating area given value, unit: kg/H.
Preferentially, the heat supply pipe network hydraulic balance calculation system software in the step S5 comprises a pipe network graph drawing module, a parameter input calculation module, a balance calculation module and a report module.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, within the scope of the present invention, should be covered by the protection scope of the present invention if the technical scheme and the inventive concept according to the present invention are replaced or changed.
Claims (6)
1. The computer method for adjusting the hydraulic balance of the heating network is characterized by comprising the following steps:
s1, determining an orifice plate valve required by actual measurement parameter acquisition, changing the aperture size of the orifice plate through the orifice plate valve, accurately controlling the flow of a pipe network, calculating the sectional area of the opening size of the orifice plate under the state of hydraulic balance working conditions, converting the sectional area into an aperture value of the orifice plate, and measuring two pressure measuring small valves at two sides of the orifice plate valve for measuring actual measurement differential pressure parameters at a user side; wherein the measurement of the measured differential pressure parameter at the user side comprises the following steps:
s11, measuring the pressure head of each user before the pipe network system is not provided with any pore plate;
s12, loading the measuring pore plate, and measuring the pressure heads at the user end and the two sides of the pore plate;
s13, dismantling the test pore plate, recording the measured parameters, and completely measuring all the in-home parts, so that five basic parameters including a user pressure head before the pore plate is installed, the user pressure head after the pore plate is installed, pressure heads on two sides of the pore plate, a valve caliber and the aperture of the test pore plate can be obtained at each in-home part, and indirectly calculating the flow rate flowing through the pore plate, the actual flow rate of a user, the resistance characteristic of a user system and the utilization pressure head of the user system through the parameters;
s2, determining various parameters required by a hydraulic balance adjusting computer method of the heating network, developing a graphic input interface, and drawing a logic diagram of the heating network into a computer in detail;
s3, developing basic parameter input codes, inputting pipe diameters and pipe lengths into a computer, establishing connection logic relations of each pipe section, inputting differential pressure, set flow, water density and valve caliber parameters into the computer, developing actual measurement parameter input codes, and inputting the differential pressure of a total port of a heating station, actual measurement flow of an outlet of the heating station, user pressure heads before loading user nodes into a pore plate, user pressure heads after loading into the pore plate, pressure heads on two sides of the pore plate and actual measurement flow parameters of a user side into the computer;
s4, developing a hydraulic balance calculation interface of the heating pipe network, calculating pore plate aperture values of pore plate valves at the user side according to the numerical values of all parameters, and calculating a plurality of groups of balanced pore plate implementation schemes according to the concept of a heating enterprise, wherein each group of scheme is balanced based on system calculation;
s5, developing a report output interface of a hydraulic balance scheme, so that the basis of scientific calculation data of the pore size of the pore plate when the pore plate is perforated is used for processing, exploring a hydraulic balance adjustment computer method based on a heating pipe network according to the steps, developing hydraulic balance calculation system software of the heating pipe network, and integrating the explored hydraulic balance adjustment computer method of the heating pipe network into the software.
2. The method for adjusting hydraulic balance of a heating network according to claim 1, wherein the flow rate flowing through the orifice plate in step S13 is calculated as follows:
W 1 ＝(△P 3 /R 1 ) 1/2
wherein W is 1 Flow through the orifice plate in units of: kg/H, deltaP 3 Is a pressure head at two sides of the pore plate, and comprises the following units: KPa, R 1 Is the orifice plate resistance characteristic.
3. The method according to claim 2, wherein the calculation formula of the resistance characteristic of the user system in step S13 is as follows:
R＝△P 2 /W 1 2
wherein R is the resistance characteristic of the user system, ΔP 2 To fit the orifice plate, the user presses KPa.
4. A heating network hydraulic balance adjustment computer method according to claim 3, wherein the calculation formula of the actual flow of the user in step S13 is as follows:
W 2 ＝(△P 1 /R) 1/2
wherein W is 2 For the actual flow of the user, ΔP 1 To load the orifice plate prior to user press head, units: KPa.
5. The method for hydraulic balance adjustment of a heating network according to claim 4, wherein the calculation formula of the tariff head of the user system in step S13 is as follows:
△P＝R*W 2
wherein, deltaP is the qualification pressure head of the user system, the unit is: KPa, W is the user set flow, is the heating area given value, unit: kg/H.
6. The method for adjusting hydraulic balance of a heating network according to claim 1, wherein the software of the hydraulic balance calculation system of the heating network in step S5 includes a network graph drawing module, a parameter input calculation module, a balance calculation module and a report module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460178.4A CN113158476B (en) | 2021-04-27 | 2021-04-27 | Computer method for adjusting hydraulic balance of heat supply pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110460178.4A CN113158476B (en) | 2021-04-27 | 2021-04-27 | Computer method for adjusting hydraulic balance of heat supply pipe network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113158476A CN113158476A (en) | 2021-07-23 |
| CN113158476B true CN113158476B (en) | 2023-06-09 |
Family
ID=76871709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110460178.4A Active CN113158476B (en) | 2021-04-27 | 2021-04-27 | Computer method for adjusting hydraulic balance of heat supply pipe network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113158476B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244576A (en) * | 2019-05-31 | 2019-09-17 | 大连海心信息工程有限公司 | A kind of two net balance methods adjusted based on Computer Simulation |
| CN111928335A (en) * | 2020-08-13 | 2020-11-13 | 大连海心信息工程有限公司 | Secondary network hydraulic balance method based on intelligent valve |
| CN112128842A (en) * | 2020-09-30 | 2020-12-25 | 辽宁工程技术大学 | Method for quickly adjusting hydraulic balance of heat supply pipe network |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211169B (en) * | 2007-12-21 | 2010-12-01 | 哈尔滨工业大学 | Minimum conveying energy consumption heat supply regulating method |
| CN108916986B (en) * | 2018-09-10 | 2020-09-18 | 常州英集动力科技有限公司 | Information physical fusion secondary pipe network variable flow hydraulic balance regulation and control method and system |
| CN110513767B (en) * | 2019-09-25 | 2020-12-29 | 常州英集动力科技有限公司 | Heat supply network hydraulic balance regulation and control method and system based on resistance characteristics of heating power station |
| CN110925854B (en) * | 2019-11-29 | 2021-10-26 | 润电能源科学技术有限公司 | Flow regulation method and system for improving hydraulic imbalance of secondary heat supply network |
| CN111396985B (en) * | 2020-03-26 | 2021-07-06 | 河南理工大学 | Automatic regulating system for static hydraulic balance of centralized heat supply pipe network and implementation method |
| CN112417662B (en) * | 2020-11-13 | 2022-07-15 | 天津大学 | Method for realizing dynamic hydraulic optimization of centralized heat supply pipe network system |
-
2021
- 2021-04-27 CN CN202110460178.4A patent/CN113158476B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244576A (en) * | 2019-05-31 | 2019-09-17 | 大连海心信息工程有限公司 | A kind of two net balance methods adjusted based on Computer Simulation |
| CN111928335A (en) * | 2020-08-13 | 2020-11-13 | 大连海心信息工程有限公司 | Secondary network hydraulic balance method based on intelligent valve |
| CN112128842A (en) * | 2020-09-30 | 2020-12-25 | 辽宁工程技术大学 | Method for quickly adjusting hydraulic balance of heat supply pipe network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113158476A (en) | 2021-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109185972B (en) | Heat station circulating pump optimization adjusting method | |
| CN108592165A (en) | A kind of heat exchange station system optimal control method | |
| CN112417662B (en) | Method for realizing dynamic hydraulic optimization of centralized heat supply pipe network system | |
| CN106682369A (en) | Heating pipe network hydraulic simulation model identification correction method and system, method of operation | |
| CN110110416B (en) | Distributed energy source cold network cold supply optimization method based on graph theory | |
| CN112128842A (en) | Method for quickly adjusting hydraulic balance of heat supply pipe network | |
| CN110244576B (en) | Two-network balancing method based on computer simulation adjustment | |
| CN113129164B (en) | Calculation method of natural gas flow pressure scheduling decision index of natural gas pipe network | |
| CN103605837A (en) | Multi-heat-source looped pipe network accessibility analysis and determination method, and multi-heat-source looped pipe network accessibility improvement method | |
| CN107171354A (en) | The sagging coefficient calculation method in flexible direct current line commutation station | |
| CN113158476B (en) | Computer method for adjusting hydraulic balance of heat supply pipe network | |
| CN104713695A (en) | Critical flow steady state test system | |
| CN101788396B (en) | Performance testing system of pressure-superposed water supply equipment | |
| CN212108661U (en) | Full-automatic hydraulic adjustment automatic balance system | |
| CN115143516A (en) | Balance adjusting method and system for primary network of dendritic heat supply pipe network | |
| CN113606656A (en) | Model prediction-based heating system hydraulic balance adjusting method and system | |
| CN103939968A (en) | Method for arranging circulating water pumps of multi-heat-source looped network heating supply system and adjusting pipe network parameters | |
| CN100413180C (en) | Controlling regulator for joint running of spepped series power station | |
| CN109324511A (en) | A kind of iron and steel enterprise's gaspipe network operation optimizing system | |
| CN110704935B (en) | Automatic debugging and outputting method of SPS software | |
| CN212108660U (en) | Balance control system for primary pipe network of heat supply system | |
| CN212108662U (en) | Two-stage pipe network balance control system of heat supply system | |
| CN100428089C (en) | Combined-running double-PID parallel control regulators for series of power stations | |
| CN100507263C (en) | Control regulating apparatus for cascade hydropower station combined operating frequency and water level between stations | |
| CN209495383U (en) | A kind of interior distributing pipe network distributing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |