WO2008072992A1 - Procédé et dispositifs de régulation de systèmes de chauffage collectifs - Google Patents

Procédé et dispositifs de régulation de systèmes de chauffage collectifs Download PDF

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Publication number
WO2008072992A1
WO2008072992A1 PCT/RU2006/000664 RU2006000664W WO2008072992A1 WO 2008072992 A1 WO2008072992 A1 WO 2008072992A1 RU 2006000664 W RU2006000664 W RU 2006000664W WO 2008072992 A1 WO2008072992 A1 WO 2008072992A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
heat
pump
flow
water
Prior art date
Application number
PCT/RU2006/000664
Other languages
English (en)
Russian (ru)
Inventor
Aleksandr Petrovich Kopitin
Viktor Matveevich Polkin
Aleksandr Borisovich Muzylev
Viacheslav Nikolaevich Znamenschikov
Stanislav Viacheslavovich Radilov
Aleksei Vasilievich Vinogradov
Original Assignee
Aleksandr Petrovich Kopitin
Viktor Matveevich Polkin
Aleksandr Borisovich Muzylev
Znamenschikov Viacheslav Nikol
Radilov Stanislav Viacheslavov
Aleksei Vasilievich Vinogradov
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aleksandr Petrovich Kopitin, Viktor Matveevich Polkin, Aleksandr Borisovich Muzylev, Znamenschikov Viacheslav Nikol, Radilov Stanislav Viacheslavov, Aleksei Vasilievich Vinogradov filed Critical Aleksandr Petrovich Kopitin
Priority to PCT/RU2006/000664 priority Critical patent/WO2008072992A1/fr
Publication of WO2008072992A1 publication Critical patent/WO2008072992A1/fr

Links

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
    • F24D10/00—District heating systems
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the invention relates to a power system, can be used in open and closed systems of heat supply to consumers with a dependent and independent scheme of connection to a heat network, and to provide the required mode of heat supply from heat sources (heating boiler houses and thermal power plants).
  • the regulation can be carried out directly at the heating devices - individual, at the local heating point - local, regulation of the heating of a group of heated buildings in a central (group) heating station - group, in the heat supply source (boiler room or CHP) - central.
  • the technical problem to which the proposed solution is aimed is to increase the cost-effectiveness without reducing the reliability of the heating system by controlling the flow of heating water to obtain the required hydraulic and thermodynamic state in the circulation pipe with full use of the pushing energy of the network pump.
  • the method for controlling the heat load in heat generation and heat consumption systems involves changing the ratio of the costs of the mixed water from the mixing pipeline and the circulating heating water due to the excess of the pressure of the mixed heat carrier above the conditionally constant pressure of the water in the circulation pipe.
  • they maintain the required value of the hydraulic and thermodynamic state of the flow and maximize the implementation of the heating schedule at the outlet of the heat supply system, preserve the estimated installed flow rate of the network water from the supply heating network at the consumer under uncontrolled disturbance from an increase in the flow of hot water for household needs and changes in the heating load ventilation.
  • New in the proposed method is that a single regulatory body (instead of a different type of regulators and electric valves) is the adjustable drive of the mixing pump, which provides the required values of the hydraulic and thermodynamic state of the heating water in the circulation pipe, maintaining the required speed.
  • This regulation method is based on the priority of preserving and improving the hydraulic stability of the heating system during the combined connection of open and closed heat supply systems of consumers.
  • a streamlined, curved elbow is installed in the outlet pipe of the mixing pipe along the central axis of the pipe (flow) of the circulation pipe and the stream leaving it for mixing is passed in the direction of movement of the main water stream, and the mixed water is taken from the peripheral part of the flow in the direction of its movement in the pipeline, and direct this part of the flow to the pump.
  • a device for mixing flows (see Fig. 2).
  • the process of mixing the flows of heating water is carried out at the outlet of the discharge pipe of the mixing pipeline 1, equipped with a bent elbow in the center of the axis of the circulation pipe 2.
  • the mixed water is supplied to the center of the flow of the supply pipe to the zone of maximum dynamic pressure, and selection from the peripheral part of the pipeline in the direction of its movement. This allows you to minimize pressure loss in the mixing pipe and more efficiently use pressure head pump characteristics, as well as save the energy of pushing the circulation pipe created by the network pump.
  • the hydrodynamic and thermodynamic state of the flow is changed by changing the profile of the current channel of the water jet to the insertion point of the mixing pipeline, for which direct the flow of heating water sequentially through axisymmetric local resistances, stepwise decreasing at the input outflow, then through the connecting pipe, adjustable length and profile of the stream current channel, and then through axisymmetric local resistance, stepwise increasing at the outlet of the stream.
  • a device for limiting the flow rate is proposed (see Fig. 3).
  • the process of limiting the flow of heating water is carried out by passing a flow of water through a set of local resistances, which in the flanged version of the connection to the existing pipelines consists of two flanges 1, two couplings 2, a sleeve with different threads 3 and four lock nuts 4.
  • Changing the piezometric head to the system inlet, and also, noise reduction to standard values is carried out by changing the hydraulic and thermodynamic state of the flow at axisymmetric stepwise local resistances (converging at the input de stream and expanding at the flow outlet) and adjustable connector piece profile.
  • thermodynamic analysis of the processes occurring in stepwise cross sections reveals the effect of a jump in jet seals, i.e. tear surfaces (an abrupt change in the flow parameters) in the expanding part of the channel due to the occurrence of a rarefaction step at the cut (overexpansion). Behind the shock wave, the flow breaks away from the shear surface, forming a stream separated from the walls by the space in which the circulation zones of the return flows are formed.
  • this method of an adjustable pump drive is not an obstacle to the implementation of this invention, since when it fails, the heat supply system returns to its original state without changing the hydraulic and thermal conditions of the heating system.
  • the supply and return pipelines operate in the previous hydraulic mode according to the temperature schedule of the heat source.
  • the heating system is fed with a pump with an unregulated drive of the appropriate capacity, and the temperature of the supply water is maintained by the existing adjustable jumper in addition to the boiler.
  • stopping the regulated pump will not interrupt the process of circulating the estimated flow rate of the network water through the adjustable flow limiting device, which allows, if necessary, changing the profile of the stream current channel without disconnecting the heat consumption object from the heat supply network.
  • the proposed technical solutions have significant features, which together affect the achieved result, namely, the cost-effectiveness, the availability of centrifugal (including silent) pumps and drive control devices, and the payback within one or two heating seasons.
  • the proposed solution is presented in a flow diagram (see Fig. 1).
  • the device for controlling the heat load in heat generation and heat consumption systems contains:
  • an adjustable feed pump 1 a pipe 2 for heating the water supply, a network pump 3, which provides a hydraulic operating mode of the heating system and a calculated flow rate of the network water through the heat generator, an adjustable pump 4 on the jumper of the boiler;
  • a flow limiting device 6 an adjustable mixing coefficient pump 7, a check valve on the pressure of the mixing pipe 8, a device for mixing flows 9.
  • the method of regulating the mode of operation of the system is as follows.
  • the make-up pump 1 through the pipeline 2 from the water treatment plant of the heat source maintains the required circulation flow of the heating water, taking into account the planned leaks and / or water analysis.
  • the network pump 3 provides the installed water flow through the heat generator and the calculated hydraulic mode of the heating system. Compliance with the temperature schedule of the heating system is carried out by an adjustable pump 4, which pumps heating water in addition to the heat generator and mixes it to the required state in the supply pipe of the heating network 5.
  • a flow restriction device 6 is installed, which is calculated by the difference in piezometric pressure between the supply 5 and the return 10 pipeline of a heating system in the place of connection of the consumer.
  • an adjustable pump 7 At a group or individual heat point, an adjustable pump 7 is installed, they provide the required mixing ratio according to the conditions for observing the heating schedule in the heat consumption system. Due to the value of the outdoor temperature changes the speed of the mixing pump and maintains the hydraulic and thermodynamic parameters of the coolant, providing the required value of heat consumption by the absolute current temperature of the outdoor air.
  • the implementation of the proposed methods and devices for regulating the hydraulic and thermal modes of heating systems ensures low cost, reliability and efficiency of the operating mode of district heating systems using energy-saving technology (with full use of the energy of pushing the network pump) regardless of the connection patterns of heat consumers, as well as with their combined combination, exclude not only the overconsumption of high-temperature coolant, but also the observed increase in temperature o fraternal network water during the night, leading to additional heat loss during heat transfer.

Landscapes

  • 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

L'invention concerne le génie thermique et peut s'utiliser dans des systèmes de chauffage à distance ouverts ou fermés. Le procédé de régulation de la charge thermique comprend l'alimentation d'eau de chauffage collectif dans une tuyauterie de circulation après son injection depuis une canalisation de mélangeage par l'augmentation ou la diminution de la fréquence de rotation de l'entraînement d'une pompe, de préférence de type centrifuge. Pour atteindre la pression piézométrique dans le système de consommation de chaleur on modifie en amont du raccordement de la canalisation de mélangeage le profil du canal d'écoulement de flux d'eau de chauffage collectif grâce à la circulation sérielle du flux à travers des résistances locales axialement symétriques. Le dispositif de régulation du régime de fonctionnement de systèmes de chauffage collectif comprend une canalisation de mélangeage dotée d'une pompe d'injection. La pompe d'injection est munie d'un entraînement à fréquence de rotation variable, capable de modifier dans les limites désirées ses caractéristiques de débit et de pression. L'invention permet de rendre plus économique la consommation d'eau de chauffage grâce à l'utilisation de l'énergie de poussée d'une pompe en réseau.
PCT/RU2006/000664 2006-12-12 2006-12-12 Procédé et dispositifs de régulation de systèmes de chauffage collectifs WO2008072992A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000664 WO2008072992A1 (fr) 2006-12-12 2006-12-12 Procédé et dispositifs de régulation de systèmes de chauffage collectifs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000664 WO2008072992A1 (fr) 2006-12-12 2006-12-12 Procédé et dispositifs de régulation de systèmes de chauffage collectifs

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WO2008072992A1 true WO2008072992A1 (fr) 2008-06-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936577B (zh) * 2009-06-30 2012-07-18 上海惠顿工贸有限公司 水循环温控装置及相应的水循环采暖系统
CN107366952A (zh) * 2017-06-13 2017-11-21 北京中建建筑科学研究院有限公司 供暖循环动力控制方法及系统
CN113825954A (zh) * 2019-05-05 2021-12-21 冷梁控制有限公司 用于调节室内空气的系统和设备
CN114857979A (zh) * 2022-04-18 2022-08-05 中国航发沈阳发动机研究所 用于航空发动机支点封严的串联式换热器热负荷分配方法

Citations (5)

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Publication number Priority date Publication date Assignee Title
SU916906A1 (ru) * 1980-08-13 1982-03-30 Головной проектный институт гражданского строительства, планировки и застройки городов и поселков "Челябинскгражданпроект" Устройство дл автоматического регулировани расхода тепла на тепловом пункте
SU1295155A1 (ru) * 1984-01-10 1987-03-07 Институт тепло- и массообмена им.А.В.Лыкова Способ центрального регулировани тепловой нагрузки
SU1326844A1 (ru) * 1984-07-24 1987-07-30 Таллинский Политехнический Институт Система регулировани отпуска тепла
GB2265455A (en) * 1992-03-28 1993-09-29 C & K Heating Prefabricated heating control unit
RU2239751C1 (ru) * 2003-05-07 2004-11-10 Серов Леонид Владимирович Способ регулирования режима работы системы водяного отопления и устройство для его осуществления

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU916906A1 (ru) * 1980-08-13 1982-03-30 Головной проектный институт гражданского строительства, планировки и застройки городов и поселков "Челябинскгражданпроект" Устройство дл автоматического регулировани расхода тепла на тепловом пункте
SU1295155A1 (ru) * 1984-01-10 1987-03-07 Институт тепло- и массообмена им.А.В.Лыкова Способ центрального регулировани тепловой нагрузки
SU1326844A1 (ru) * 1984-07-24 1987-07-30 Таллинский Политехнический Институт Система регулировани отпуска тепла
GB2265455A (en) * 1992-03-28 1993-09-29 C & K Heating Prefabricated heating control unit
RU2239751C1 (ru) * 2003-05-07 2004-11-10 Серов Леонид Владимирович Способ регулирования режима работы системы водяного отопления и устройство для его осуществления

Non-Patent Citations (1)

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Title
SOKOLOV E.Y.: "Teplofikatsiya i teplovie seti", MOSCOW, IZDATELSTVO MEI, 2001, pages 97, 278 - 279 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936577B (zh) * 2009-06-30 2012-07-18 上海惠顿工贸有限公司 水循环温控装置及相应的水循环采暖系统
CN107366952A (zh) * 2017-06-13 2017-11-21 北京中建建筑科学研究院有限公司 供暖循环动力控制方法及系统
CN113825954A (zh) * 2019-05-05 2021-12-21 冷梁控制有限公司 用于调节室内空气的系统和设备
US11768006B2 (en) 2019-05-05 2023-09-26 Ft Energy Controls, Llc System and apparatus for conditioning of indoor air
CN114857979A (zh) * 2022-04-18 2022-08-05 中国航发沈阳发动机研究所 用于航空发动机支点封严的串联式换热器热负荷分配方法

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