CN114076338A - Courtyard pipe network heat supply energy-saving resistance reduction system and method - Google Patents
Courtyard pipe network heat supply energy-saving resistance reduction system and method Download PDFInfo
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- CN114076338A CN114076338A CN202111363709.4A CN202111363709A CN114076338A CN 114076338 A CN114076338 A CN 114076338A CN 202111363709 A CN202111363709 A CN 202111363709A CN 114076338 A CN114076338 A CN 114076338A
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- pipe network
- heat supply
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- courtyard
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012797 qualification Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract 1
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Classifications
-
- 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
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- 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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- 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)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a courtyard pipe network heat supply energy-saving and resistance-reducing system and method, and belongs to the technical field of urban heat supply control. Hydraulic calculation is carried out to obtain redundant qualification pressure difference at the inlet of each thermal cell, then resistance reduction treatment is carried out, the current operating situation of the courtyard pipe network system is analyzed, a resistance reduction scheme is given, a proper matched product is selected, and a system or equipment transformation scheme is given, such as replacement of a low-resistance dirt separator, enlargement of a water pump branch pipe and the like. The hydraulic balance design of the system is carried out, each system is carefully investigated, hydraulic calculation is carried out on each secondary network circulating system, the asset differential pressure of each node is calculated, the redundant asset differential pressure of each heating power cell inlet is further calculated, and a special balance adjusting valve group is designed in a one-to-one mode, so that the special balance adjusting valve group can just consume the redundant asset differential pressure, and the system achieves good hydraulic balance.
Description
Technical Field
The invention belongs to the technical field of urban heating control, and relates to a courtyard pipe network heat supply energy-saving and resistance-reducing system and method.
Background
The prior art adopted by the courtyard pipe network heat supply system is relatively laggard, and most of the prior art is managed by manual operation. The degree of automation is very low or even almost none. Many courtyard pipe networks do not have hydraulic balance devices or adopt self-operated differential pressure balance valves with a lot of defects, the hydraulic balance regulation and control difficulty of the system is very high, and basically the technical level and the responsibility of operators are relied on. Because an automatic and intelligent operation system is not adopted, the operation of the heating system is also monitored and maintained by technicians, the big data of heat, electricity and water cannot be applied, and the operation is all searched.
Disclosure of Invention
The invention aims to overcome the defect that the courtyard pipe network heat supply system in the prior art cannot realize automatic control, and provides a courtyard pipe network heat supply energy-saving resistance reduction method and system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a courtyard pipe network heat supply energy-saving resistance-reducing system is characterized in that a courtyard pipe network comprises a plurality of secondary network circulating systems, and the system comprises
The data acquisition unit is used for acquiring original signals in the heat station; the original signals comprise heat, flow, temperature and water pump parameters;
the data processing unit is interacted with the data acquisition unit and is used for processing the original signal and performing hydraulic calculation on a secondary network circulating system in the courtyard pipe network to obtain redundant qualification pressure difference at the inlet of each thermal cell;
the resistance reduction unit is mutually interacted with the data processing unit and is used for designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell;
and the control unit is respectively interacted with the data processing unit and the resistance reduction unit and adjusts the pressure difference of the special balance valve bank based on the redundant qualification pressure difference at the inlet of each thermal cell.
Preferably, the dedicated balancing regulating valve group comprises a plurality of static balancing valves;
and each branch is provided with a static balance valve.
Preferably, the dedicated balancing valve block comprises a valve positioner mounted on the valve.
Preferably, the data acquisition unit further comprises water supply and return for inlets and outlets of the units in the thermal station.
Preferably, the courtyard pipe network heat supply energy-saving resistance reduction system further comprises a video monitoring unit which is interacted with the control unit and used for acquiring environment signals inside and outside the heating power station and transmitting the environment signals to the control unit.
A heat supply energy-saving resistance reduction method for a courtyard pipe network comprises the following steps:
step 1) acquiring original signals in a heating power station, processing the original signals, and performing hydraulic calculation on a secondary network circulating system in a courtyard pipe network to obtain redundant qualification pressure difference at an inlet of each heating power cell;
step 2), designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell;
and 3) adjusting the pressure difference of the special balance valve group based on the redundant qualification pressure difference at the inlet of each thermal cell.
Preferably, in step 2), the original signals are processed, specifically, isolation filtering processing is performed on different original signals.
Preferably, in step 3), a sampling rate of a fixed period is adopted for raw signal acquisition.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a courtyard pipe network heat supply energy-saving resistance reduction system, which processes original signals, obtains redundant qualification pressure difference at the inlet of each heating power cell through hydraulic calculation, then performs resistance reduction treatment, designs a special balance adjusting valve group one by one, and enables the special balance adjusting valve group to just consume the redundant qualification pressure difference, thereby enabling the system to achieve good hydraulic balance.
The invention also discloses a heat supply energy-saving resistance reduction method for the courtyard pipe network, which analyzes the current operating situation of the courtyard pipe network system, provides a resistance reduction scheme, selects a proper matched product, and provides a system or equipment modification scheme, such as replacing a low-resistance dirt separator, enlarging branch pipes of a water pump and the like. The hydraulic balance design of the system is carried out, each system is carefully investigated, hydraulic calculation is carried out on each secondary network circulating system, the asset differential pressure of each node is calculated, the redundant asset differential pressure of each heating power cell inlet is further calculated, and finally, a special balance regulating valve group is designed in a one-to-one mode, so that the redundant asset differential pressure can be consumed, and the system can achieve good hydraulic balance.
Drawings
Fig. 1 is a diagram of a courtyard pipe network heat supply energy-saving resistance-reducing system.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
example 1
The utility model provides a courtyard pipe network heat supply energy-conserving drag reduction system, as shown in figure 1, the courtyard pipe network includes a plurality of secondary net circulation system, includes: the data acquisition unit is used for acquiring original signals in the heat station; the original signals comprise heat, flow, temperature and water pump parameters; the data processing unit is interacted with the data acquisition unit and is used for processing the original signal and performing hydraulic calculation on a secondary network circulating system in the courtyard pipe network to obtain redundant qualification pressure difference at the inlet of each thermal cell; the resistance reduction unit is mutually interacted with the data processing unit and is used for designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell; and the control unit is respectively interacted with the data processing unit and the resistance reduction unit and adjusts the pressure difference of the special balance valve bank based on the redundant qualification pressure difference at the inlet of each thermal cell.
Example 2
The contents are the same as those of example 1 except for the following.
The special balance adjusting valve group comprises a plurality of static balance valves, and each branch is provided with one static balance valve. The dedicated balancing valve bank includes a valve positioner mounted on the valve. The data acquisition unit also comprises water supply and return water at the inlet and outlet of each unit in the heating power station. The courtyard pipe network heat supply energy-saving resistance reduction system further comprises a video monitoring unit which is mutually connected with the control unit and used for acquiring environment signals inside and outside the heating power station and transmitting the environment signals to the control unit.
Example 3
A heat supply energy-saving resistance reduction method for a courtyard pipe network comprises the following steps:
step 1) acquiring original signals in a heating power station, processing the original signals, and performing hydraulic calculation on a secondary network circulating system in a courtyard pipe network to obtain redundant qualification pressure difference at an inlet of each heating power cell; in the step 3), the sampling rate of a fixed period is adopted during the acquisition of the original signal. The processing of the original signals is specifically to perform isolation filtering processing on different original signals.
Step 2), designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell;
and 3) adjusting the pressure difference of the special balance valve group based on the redundant qualification pressure difference at the inlet of each thermal cell.
It should be noted that, in the embodiment, the hydraulic balance device, the balanced valve core, the valve positioning mechanism and the digital hand wheel display are arranged at the inlet of the unit, and the same principle is adopted, specifically, a static balance valve is additionally arranged after hydraulic calculation is carried out on the unit side in the cell, the resistance of a pipe network is balanced, the static balance valve of the original TA inlet of Sweden is adopted, accurate hydraulic balance control is realized, and the zinc corrosion resistance of the balance valve is superior to that of brass and is equivalent to that of bronze. The surface is smooth by adopting metal die casting, which is superior to bronze cast by sand die. Other characteristics such as hardness, breaking limit, yield point and the like are far better than bronze, and the high performance ensures that the valve can be normally used for a long time. The valve core of the flange connection valve is of a balance structure and is not influenced by system pressure, the valve is easily closed, a hand wheel can be made smaller, and installation space is saved. The load spring valve shaft is often used in valves requiring high-precision positioning, such as balance valves and the like, and ensures the accuracy of flow measurement. The gear is positioned, the accurate display is realized, the calibration is convenient, the reading is clearly displayed on the front surface of the hand wheel, and the reading can still be conveniently realized even after the heat preservation of the valve. The balanced valve core and the valve core of the flange connection valve are of a balanced structure, are not influenced by system pressure, are easy to close, enable a hand wheel to be smaller and save installation space.
In the heat exchange station, the dirt separator is replaced by a low-resistance dirt separator, a constant flow valve is removed, in order to well make one-network balance, a self-operated differential pressure valve can be added on condition, the heat exchange station is lifted, transformed and replaced by an in-station heat meter and a flowmeter, and the digitization and visualization of parameters such as heat, flow and temperature in the station are realized. And part of the water pumps in the station are replaced, and all water pump parameters are recalculated and checked, so that the efficiency of the water pumps is improved, and the power consumption is reduced. And (4) repairing and replacing damaged pipelines and valves in the station, and repairing damaged heat preservation. An automatic control system is added in the heat exchange station to realize data uploading and video monitoring in the station.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a courtyard pipe network heat supply energy-conserving drag reduction system, courtyard pipe network include a plurality of secondary net circulation system, its characterized in that includes:
the data acquisition unit is used for acquiring original signals in the heat station; the original signals comprise heat, flow, temperature and water pump parameters;
the data processing unit is interacted with the data acquisition unit and is used for processing the original signal and performing hydraulic calculation on a secondary network circulating system in the courtyard pipe network to obtain redundant qualification pressure difference at the inlet of each thermal cell;
the resistance reduction unit is mutually interacted with the data processing unit and is used for designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell;
and the control unit is respectively interacted with the data processing unit and the resistance reduction unit and adjusts the pressure difference of the special balance valve bank based on the redundant qualification pressure difference at the inlet of each thermal cell.
2. A yard pipe network heat supply energy-saving drag reduction system as claimed in claim 1, wherein the dedicated balance regulating valve set comprises a plurality of static balance valves;
and each branch is provided with a static balance valve.
3. A yard pipe network heat supply energy saving drag reduction system as claimed in claim 1, wherein the dedicated balance adjustment valve bank comprises a valve positioner mounted on a valve.
4. The system of claim 1, wherein the data acquisition unit further comprises water supply and return for inlets and outlets of each unit in the thermal station.
5. The system of claim 1, further comprising a video monitoring unit interacting with the control unit for obtaining environmental signals inside and outside the thermal station and transmitting the environmental signals to the control unit.
6. A courtyard pipe network heat supply energy-saving resistance reduction method is characterized by comprising the following steps:
step 1) acquiring original signals in a heating power station, processing the original signals, and performing hydraulic calculation on a secondary network circulating system in a courtyard pipe network to obtain redundant qualification pressure difference at an inlet of each heating power cell;
step 2), designing a one-to-one special balance regulating valve group, so that the resource differential pressure of the special balance regulating valve group is equal to the redundant resource differential pressure at the inlet of each thermal cell;
and 3) adjusting the pressure difference of the special balance valve group based on the redundant qualification pressure difference at the inlet of each thermal cell.
7. The heat supply, energy saving and drag reduction method for the courtyard pipe network as recited in claim 1, wherein in the step 1), the original signals are processed, specifically, different original signals are subjected to isolation filtering processing.
8. A courtyard pipe network heat supply energy-saving resistance-reducing method as recited in claim 1, wherein in the step 3), a sampling rate of a fixed period is adopted when the original signal is collected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363709.4A CN114076338A (en) | 2021-11-17 | 2021-11-17 | Courtyard pipe network heat supply energy-saving resistance reduction system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363709.4A CN114076338A (en) | 2021-11-17 | 2021-11-17 | Courtyard pipe network heat supply energy-saving resistance reduction system and method |
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| Publication Number | Publication Date |
|---|---|
| CN114076338A true CN114076338A (en) | 2022-02-22 |
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| CN202111363709.4A Pending CN114076338A (en) | 2021-11-17 | 2021-11-17 | Courtyard pipe network heat supply energy-saving resistance reduction system and method |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466467U (en) * | 1990-10-19 | 1992-06-11 | ||
| EP1074795A2 (en) * | 1999-07-28 | 2001-02-07 | Siegfried Leverberg | Method for hydraulic calibrating a heating installation |
| WO2003057998A2 (en) * | 2002-01-08 | 2003-07-17 | Optimus Water Technologies Ltd. | Water supply system |
| CN101604160A (en) * | 2008-12-25 | 2009-12-16 | 天津滨海创业能源技术有限公司 | Large area heat supply running automatic monitoring system device |
| CN101666319A (en) * | 2009-09-29 | 2010-03-10 | 长沙翔鹅节能技术有限公司 | Energy saving method for circulating water system |
| CN101949559A (en) * | 2010-09-21 | 2011-01-19 | 杭州哲达科技股份有限公司 | Intelligent energy-saving mixed water heat supply method |
| EP2395288A1 (en) * | 2010-06-08 | 2011-12-14 | Comap | Balancing valve |
| CN203489361U (en) * | 2013-10-12 | 2014-03-19 | 绍兴文理学院 | Centralized heating monitoring system |
| CN209278616U (en) * | 2019-01-05 | 2019-08-20 | 郑州兆鑫暖通科技有限公司 | A kind of heating heat supply network balance dedicated regulation valve and its pipe network system |
| CN111396985A (en) * | 2020-03-26 | 2020-07-10 | 河南理工大学 | Automatic regulating system for static hydraulic balance of centralized heat supply pipe network and implementation method |
| CN111396986A (en) * | 2020-03-26 | 2020-07-10 | 河南理工大学 | Impedance-based manual static hydraulic balance adjusting method for central heating pipe network |
| EP3706066A1 (en) * | 2019-03-06 | 2020-09-09 | Engineering Ingegneria Informatica S.p.A. | System for monitoring a water distribution network |
| CN211625457U (en) * | 2020-01-15 | 2020-10-02 | 杨树明 | Special balance valve set for heating secondary pipe network or central air-conditioning pipe network |
-
2021
- 2021-11-17 CN CN202111363709.4A patent/CN114076338A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466467U (en) * | 1990-10-19 | 1992-06-11 | ||
| EP1074795A2 (en) * | 1999-07-28 | 2001-02-07 | Siegfried Leverberg | Method for hydraulic calibrating a heating installation |
| WO2003057998A2 (en) * | 2002-01-08 | 2003-07-17 | Optimus Water Technologies Ltd. | Water supply system |
| CN101604160A (en) * | 2008-12-25 | 2009-12-16 | 天津滨海创业能源技术有限公司 | Large area heat supply running automatic monitoring system device |
| CN101666319A (en) * | 2009-09-29 | 2010-03-10 | 长沙翔鹅节能技术有限公司 | Energy saving method for circulating water system |
| EP2395288A1 (en) * | 2010-06-08 | 2011-12-14 | Comap | Balancing valve |
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| CN203489361U (en) * | 2013-10-12 | 2014-03-19 | 绍兴文理学院 | Centralized heating monitoring system |
| CN209278616U (en) * | 2019-01-05 | 2019-08-20 | 郑州兆鑫暖通科技有限公司 | A kind of heating heat supply network balance dedicated regulation valve and its pipe network system |
| EP3706066A1 (en) * | 2019-03-06 | 2020-09-09 | Engineering Ingegneria Informatica S.p.A. | System for monitoring a water distribution network |
| CN211625457U (en) * | 2020-01-15 | 2020-10-02 | 杨树明 | Special balance valve set for heating secondary pipe network or central air-conditioning pipe network |
| CN111396985A (en) * | 2020-03-26 | 2020-07-10 | 河南理工大学 | Automatic regulating system for static hydraulic balance of centralized heat supply pipe network and implementation method |
| CN111396986A (en) * | 2020-03-26 | 2020-07-10 | 河南理工大学 | Impedance-based manual static hydraulic balance adjusting method for central heating pipe network |
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Application publication date: 20220222 |