CN113324278A - Modularized combined intelligent heat supply system and method based on multiple clean energy sources - Google Patents

Modularized combined intelligent heat supply system and method based on multiple clean energy sources Download PDF

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Publication number
CN113324278A
CN113324278A CN202110679622.1A CN202110679622A CN113324278A CN 113324278 A CN113324278 A CN 113324278A CN 202110679622 A CN202110679622 A CN 202110679622A CN 113324278 A CN113324278 A CN 113324278A
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China
Prior art keywords
heat
stop valve
supply
water tank
heat exchanger
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CN202110679622.1A
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Chinese (zh)
Inventor
孙佰仲
刘钟泽
高龙
车德勇
单亚顺
张永胜
胡焕智
吕英志
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Jilin Anruike Electrical Technology Co ltd
Jilin Zhishen Technology Co ltd
Northeast Electric Power University
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Jilin Anruike Electrical Technology Co ltd
Jilin Zhishen Technology Co ltd
Northeast Dianli University
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Publication of CN113324278A publication Critical patent/CN113324278A/en
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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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0228—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with conventional heater
    • 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
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/06—Solid fuel fired boiler
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0271—Valves
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/06—Heat exchangers
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy

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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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The invention relates to a modularized combined intelligent heat supply system and a method based on multiple clean energy sources, belonging to the technical field of centralized heat supply, wherein the modularized combined intelligent heat supply system based on the multiple clean energy sources comprises a heat source integrated module complementary heat supply system and an intelligent control system with source-network-load coordination; the heat source integrated module complementary heat supply system comprises a heat source integrated module, a short-term heat storage water tank and a first heat exchanger; the heat source integration module comprises a cross-season heat storage water tank, a main water supply pipe, a main water return pipe, a first circulating pump, a solar heat supply unit, a water source heat supply loop, an air source heat supply loop and a biomass boiler heat supply loop. The heat source module combination can be selected according to local resource conditions and weather conditions, the short-term heat load change trend is predicted according to weather forecast in a heating season, and then the intelligent control system with source-network-load coordination is used for intelligently adjusting a heat network and a heat source so as to realize clean energy heat supply with minimum heat loss.

Description

Modularized combined intelligent heat supply system and method based on multiple clean energy sources
The application is a divisional application of a patent application named as 'a modular combined intelligent heating system based on multiple clean energy', the application date of the original application is 2019, 01 and 27, and the application number is 201910076887.5.
Technical Field
The invention relates to the field of centralized heating, in particular to a modular combined intelligent heating system and method based on multiple clean energy sources.
Background
In winter, haze is aggravated due to coal-fired heat supply in northern areas, the wind and light are seriously abandoned, and the advantages of renewable clean energy become more and more obvious. Solar heat collection and heat supply can supply heat to people and provide domestic hot water at low cost, but the solar heat supply system independently adopted has the big problems of difficult load guarantee, influence by weather condition change, poor continuity and the like; the solar cross-season heat storage and supply technology can effectively utilize abundant solar energy resources in summer, but the heat storage is unstable, the technology is not completely mature, and the available heat is relatively unstable in winter heat supply.
Although the air source heat pump can save electric energy to the maximum extent, is green and environment-friendly, has long service life, is affected by outdoor temperature fluctuation, has extremely unstable gas movement, and has the defect that the heat supply amount is inconsistent with the heat demand amount in the heat supply season; the water source heat pump is limited in large-area popularization and application due to the difference of water resource areas; the biomass boiler supplies heat, is environment-friendly and economical, biomass is renewable energy, heat supply restriction conditions are few, the form is flexible, but the problems of insufficient resource supply capacity, resource dispersion, high raw material collection cost and the like exist in the utilization of the biomass energy.
It can be seen from the above problems that several energy heating technologies can be affected by the self resource status when used alone, and once a fault occurs, no alternative heat source is available, which results in poor operation safety and stability of the heating system, so that the idea of modular combination of various energy systems is provided, the coupling effect of various energy sources is realized under the condition of insufficient heat supply of single energy source, and stable and sufficient domestic heat is provided for public buildings, enterprise parks and residential districts which can not be covered by urban and rural centralized heating networks.
Disclosure of Invention
The invention aims to provide an intelligent heating system with the complementary characteristic of multiple renewable energy sources, which organically combines solar cross-season heat storage, a water source air source heat pump and a biomass boiler and can effectively and intelligently heat a heat user.
In order to achieve the purpose, the invention provides the following scheme:
the utility model provides a modularization combination formula intelligence heating system based on multiple clean energy, modularization combination formula intelligence heating system based on multiple clean energy includes heat supply network system and hot user, modularization combination formula intelligence heating system based on multiple clean energy still includes: the heat source integration module is used for complementing a heat supply system and a source-network-load coordinated intelligent control system;
the heat source integrated module complementary heat supply system comprises a heat source integrated module, a short-term heat storage water tank and a first heat exchanger;
a hot water outlet of the heat source integration module is connected with a heat storage inlet of the short-term heat storage water tank;
a hot water inlet of the heat source integration module is connected with a heat storage outlet of the short-term heat storage water tank;
a heat taking outlet of the short-term heat storage water tank is connected with the heat supply and water supply of a heat user through a heat supply network system;
a heat taking inlet of the short-term heat storage water tank is connected with heat supply backwater of a heat user through a heat supply network system;
a temperature sensor and a phase change heat accumulator are arranged in the short-term heat storage water tank; composite phase-change materials are filled in the phase-change heat accumulator;
the heat source integration module comprises a season-crossing heat storage water tank, a main water supply pipe, a main water return pipe, a first circulating pump, a solar heat supply unit, a water source heat supply loop, an air source heat supply loop and a biomass boiler heat supply loop;
the cross-season heat storage water tank is connected with a heat storage inlet of the short-term heat storage water tank through a main water supply pipe as a hot water outlet of the heat source integration module, and is connected with a heat storage outlet of the short-term heat storage water tank through a main water return pipe as a hot water inlet of the heat source integration module;
a temperature sensor and a phase change heat accumulator are arranged in the cross-season heat storage water tank; composite phase-change materials are filled in the phase-change heat accumulator;
the first circulating pump is arranged on a main water return pipe between a hot water inlet of the heat source integration module and a heat storage outlet of the short-term heat storage water tank;
a first stop valve is arranged on the main water supply pipe;
a second stop valve is arranged on the main water return pipe and between the first circulating pump and the season-crossing heat storage water tank;
the cross-season heat storage water tank, the main water supply pipe, the short-term heat storage water tank, the first circulating pump and the main water return pipe form a cross-season heat storage water tank heat supply loop;
the solar heat supply unit is connected with the cross-season heat storage water tank and is used for storing heat energy converted from solar energy in the cross-season heat storage water tank; the solar heat supply unit and the seasonal heat storage water tank heat supply loop jointly form a solar heat supply loop;
the water source heat supply loop is used for converting heat energy of the cross-season heat storage water tank into hot water of the water source heat supply loop through heat exchange for a plurality of times so as to supply heat for heat users;
the air source heat supply loop is used for converting air energy into hot water of the air source heat supply loop through heat exchange for a plurality of times to supply heat to a heat user;
the biomass boiler heat supply loop is used for converting heat energy generated by biomass combustion into hot water of the biomass boiler heat supply loop to supply heat to a heat user;
the source-network-load coordinated intelligent control system is respectively in signal connection with a temperature sensor in the short-term heat storage water tank, a temperature sensor in the cross-season heat storage water tank and a heat user;
the source-network-load coordinated intelligent control system is electrically connected with the first heat exchanger, the first circulating pump, the first stop valve and the second stop valve respectively.
Optionally, the solar heat supply unit comprises a solar heat collector, a second heat exchanger, a second circulation pump and a third circulation pump;
the outlet of the solar heat collector is communicated with the inlet of the heat supply channel of the second heat exchanger;
the inlet of the solar heat collector is communicated with the outlet of the heat supply channel of the second heat exchanger;
the second circulating pump is arranged at the outlet of the heat supply channel of the second heat exchanger;
the solar heat collector, the second heat exchanger heat supply channel and the second circulating pump form a solar heat exchange circulating loop;
an outlet of a heat taking channel of the second heat exchanger is connected with a heat storage inlet of the season-crossing heat storage water tank through a third stop valve;
an inlet of a heat taking channel of the second heat exchanger is connected with a heat storage outlet of the season-crossing heat storage water tank through a fourth stop valve;
the source-network-load coordinated intelligent control system is respectively and electrically connected with the solar heat collector, the third stop valve, the fourth stop valve, the second heat exchanger, the second circulating pump and the third circulating pump;
the third circulating pump is arranged at the inlet of the heat taking channel of the second heat exchanger;
the second heat exchanger heat taking channel, the cross-season heat storage water tank and the third circulating pump form a cross-season heat exchange circulating loop;
the heat energy obtained by the solar heat collector is subjected to heat exchange with the cross-season heat exchange circulation loop through the solar heat exchange circulation loop in the second heat exchanger, and is stored in the cross-season heat storage water tank after the temperature is raised.
Optionally, the water source heating circuit comprises a water source heat exchanger, a heat pump and a third heat exchanger;
the inlet of a heat supply channel of the water source heat exchanger and a main water supply pipe are connected between a first stop valve and the season-crossing heat storage water tank through a three-way valve;
the outlet of the heat supply channel of the water source heat exchanger is connected with a main water return pipe;
a fifth stop valve is arranged at the inlet of a heat supply channel of the water source heat exchanger;
a heat supply channel, a main water return pipe, a season-crossing heat storage water tank and a main water supply pipe of the water source heat exchanger form a first heat exchange circulation loop of the season-crossing heat storage water tank and the water source heat exchanger;
the outlet of the heat taking channel of the water source heat exchanger is connected with the heat pump and is connected with the inlet of the heat supply channel of the third heat exchanger through the heat pump;
the inlet of a heat taking channel of the water source heat exchanger is connected with the outlet of a heat supply channel of the third heat exchanger through a sixth stop valve;
a heat taking channel of the water source heat exchanger, the heat pump and a heat supply channel of the third heat exchanger form a second heat exchange circulation loop of the water source heat exchanger and the third heat exchanger;
an outlet of a heat taking channel of the third heat exchanger is connected with a main water supply pipe through a seventh stop valve and is connected with a heat storage inlet of the short-term heat storage water tank through the main water supply pipe, and a connector is positioned between the first stop valve and the short-term heat storage water tank;
an inlet of a heat taking channel of the third heat exchanger is connected with the main water return pipe through an eighth stop valve, and is connected with the first circulating pump and a heat storage outlet of the short-term heat storage water tank through the main water return pipe, and a connector is positioned between the second stop valve and the first circulating pump to form a third heat exchange loop of the third heat exchanger and the short-term heat storage water tank;
the source-network-load coordinated intelligent control system is electrically connected with the heat pump, the three-way valve, the fifth stop valve, the sixth stop valve, the seventh stop valve, the eighth stop valve and the third heat exchanger respectively;
the heat energy of the cross-season heat storage water tank is converted into hot water of a water source heat supply loop through the sequential heat exchange of the first heat exchange circulation loop, the second heat exchange circulation loop and the third heat exchange loop so as to supply heat for a heat user.
Optionally, the air source heating circuit comprises an air source heat exchanger;
the heat supply channel of the air source heat exchanger is communicated with the outside;
the outlet of the heat taking channel of the air source heat exchanger is connected with the heat pump and is connected with the inlet of the heat supply channel of the third heat exchanger through the heat pump;
the inlet of a heat taking channel of the air source heat exchanger is connected with the outlet of a heat supply channel of the third heat exchanger through a ninth stop valve;
the source-network-load coordinated intelligent control system is electrically connected with the ninth stop valve;
a heat taking channel of the air source heat exchanger, a heat pump and a heat supply channel of the third heat exchanger form a fourth heat exchange circulation loop of the air source heat exchanger and the third heat exchanger;
and the fourth heat exchange circulation loop exchanges heat with the third heat exchange loop and converts the heat into hot water of the air source heat supply loop to supply heat for a heat user.
Optionally, the biomass boiler heating circuit comprises a biomass boiler and a fourth heat exchanger;
the heat supply outlet of the biomass boiler is connected with the heat supply channel inlet of the fourth heat exchanger;
a heat supply inlet of the biomass boiler is connected with a heat supply channel outlet of the fourth heat exchanger;
an outlet of a heat taking channel of the fourth heat exchanger is connected with a main water supply pipe through a tenth stop valve and is connected with a heat storage inlet of the short-term heat storage water tank through the main water supply pipe, and a connector is positioned between the first stop valve and the short-term heat storage water tank;
an inlet of a heat taking channel of the fourth heat exchanger is connected with a main water return pipe through an eleventh stop valve and is connected with a first circulating pump and a heat storage outlet of the short-term heat storage water tank through the main water return pipe, and a connector is located between the second stop valve and the first circulating pump and is used for converting hot water in a heat supply loop of the biomass boiler into hot water to supply heat for a heat user;
and the source-network-load coordinated intelligent control system is electrically connected with the fourth heat exchanger, the tenth stop valve and the eleventh stop valve respectively.
In order to achieve the above purpose, the invention also provides the following scheme:
a modular combined intelligent heat supply method based on multiple clean energy sources comprises the following steps:
when sunlight is sufficient and the heat supply loop of the cross-season heat storage water tank does not supply heat, the third stop valve and the fourth stop valve are opened, the second circulating pump and the third circulating pump are started, and the solar heat collector exchanges heat of the collected solar energy in the second heat exchanger through the solar heat exchange circulating loop and the cross-season heat exchange circulating loop, raises the temperature and stores the solar energy in the cross-season heat storage water tank;
when the temperature of the cross-season heat storage water tank reaches the designated temperature, the third stop valve, the fourth stop valve, the second circulating pump and the third circulating pump are closed;
when the heat in the cross-season heat storage water tank meets the heat supply requirement, the water source heat supply loop, the air source heat supply loop and the biomass boiler heat supply loop are cut off, the left and right passages of the first stop valve, the second stop valve and the three-way valve are opened, the fifth stop valve to the eleventh stop valve are closed, the first circulating pump is started, and the solar heat supply loop is opened to supply heat for a heat user;
when the heat in the cross-season heat storage water tank does not meet the heat supply requirement and the outdoor temperature is high, opening the fifth stop valve, the ninth stop valve and a left middle passage of the three-way valve, closing the first stop valve, the second stop valve, the tenth stop valve and the eleventh stop valve, starting the air source heat exchanger, the third heat exchanger and the first circulating pump, closing the water source heat exchanger, and opening the solar heat supply loop and the air source heat supply loop to supply heat for a heat user;
when the heat in the cross-season heat storage water tank does not meet the heat supply requirement and the outdoor temperature is high, opening the fifth stop valve, the eighth stop valve and the left middle channel of the three-way valve, closing the first stop valve, the second stop valve, the ninth stop valve, the eleventh stop valve, starting the water source heat exchanger, the third heat exchanger and the first circulating pump, closing the air source heat exchanger, and opening the solar heat supply loop and the water source heat supply loop to supply heat for heat users;
when peak regulation is needed, the tenth stop valve and the eleventh stop valve are opened, the first stop valve, the second stop valve, the fifth stop valve, the ninth stop valve and the ninth stop valve are closed, the biomass boiler, the fourth heat exchanger and the first circulating pump are started, and a heat supply loop of the biomass boiler is opened to supply heat for users.
Optionally, the modular combined intelligent heating method based on multiple clean energy sources includes:
the intelligent control system adopts various energy modules to run in a complementary mode, and source-network-load coordination controls the opening degree of the first stop valve to the eleventh stop valve, the direction switching and opening degree of the three-way valve, the starting or closing of the first circulating pump to the third circulating pump, the starting or closing of the first heat exchanger to the fourth heat exchanger and the mutual coupling opening of all heat supply circulation loops of the heat source integration module according to signals transmitted by temperature sensors in the cross-season heat storage water tank and the short-term heat storage water tank and signals transmitted by a heat user, so that solar energy, electric energy or biomass energy is randomly generated and is input into the short-term heat storage water tank to meet the change of the heat load of the user.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the solar energy is subjected to seasonal heat storage, the water source air source heat pump and the biomass boiler are organically combined, the use of primary energy is avoided, energy is saved, the environment is protected under the condition that the heat supply demand of a user is met, meanwhile, the intelligent control system can predict the heat load change according to the heat load of the user and environmental factors, and module starting configuration is carried out on the heat source, so that the optimal technical economy is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a modular combined intelligent heating system based on multiple clean energy sources.
Description of the symbols:
the system comprises a solar heat collector-1, a second heat exchanger-2, a season-crossing heat storage water tank-3, a water source heat exchanger-4, an air source heat exchanger-5, a heat pump-6, a third heat exchanger-7, a biomass boiler-8, a fourth heat exchanger-9, a short-term heat storage water tank-10, a first heat exchanger-11, a heat user-12, a second circulating pump-13, a third circulating pump-14, a first circulating pump-15, a third stop valve-V1, a fourth stop valve-V2, a fifth stop valve-V3, a first stop valve-V4, a second stop valve-V5, a sixth stop valve-V6, a ninth stop valve-V7, a seventh stop valve-V8, an eighth stop valve-V9, a tenth stop valve-V10 and an eleventh stop valve-V11.
Detailed Description
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.
The invention aims to provide a modularized combined intelligent heating system based on multiple clean energy sources, which organically combines solar cross-season heat storage, a water source air source heat pump and a biomass boiler, avoids the use of primary energy sources, is energy-saving and environment-friendly under the condition of meeting the heating demand of users, and simultaneously, an intelligent control system can predict the change of heat load according to the heat load of the users and environmental factors and perform module starting configuration on the heat source to achieve the optimal technical economy.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention relates to a modular combined intelligent heating system based on multiple clean energy sources.
As shown in fig. 1, the modular combined intelligent heating system based on multiple clean energy sources of the present invention further includes: the heat source integration module is used for complementing a heat supply system and a source-network-load coordinated intelligent control system.
The heat source integrated module complementary heat supply system comprises a heat source integrated module, a short-term heat storage water tank 10 and a first heat exchanger 11.
The hot water outlet of the heat source integration module is connected with the heat storage inlet of the short-term heat storage water tank 10.
The hot water inlet of the heat source integration module is connected with the heat storage outlet of the short-term heat storage water tank 10.
The heat taking outlet of the short-term heat storage water tank 10 is connected with the heat supply water supply of the heat user 12 through a heat supply network system.
The heat taking inlet of the short-term heat storage water tank 10 is connected with the heat supply backwater of the heat user 12 through a heat supply network system.
A temperature sensor and a phase change heat accumulator are arranged in the short-term heat storage water tank 10; and the phase-change heat accumulator is filled with a composite phase-change material.
The heat source integration module comprises a cross-season heat storage water tank 3, a main water supply pipe, a main water return pipe, a first circulating pump 15, a solar heat supply unit, a water source heat supply loop, an air source heat supply loop and a biomass boiler heat supply loop.
The cross-season heat storage water tank 3 is connected with a heat storage inlet of the short-term heat storage water tank 10 through a main water supply pipe as a hot water outlet of the heat source integration module, and is connected with a heat storage outlet of the short-term heat storage water tank 10 through a main water return pipe as a hot water inlet of the heat source integration module.
A temperature sensor and a phase change heat accumulator are arranged in the cross-season heat storage water tank 3; and the phase-change heat accumulator is filled with a composite phase-change material.
The first circulation pump 15 is provided on the main return pipe between the hot water inlet of the heat source integration module and the heat storage outlet of the short-term heat storage water tank 10.
A first shutoff valve V4 is provided in the main water supply pipe.
And a second stop valve V5 is arranged on the main water return pipe and between the first circulating pump 15 and the cross-season heat storage water tank 3.
The cross-season heat storage water tank 3, the main water supply pipe, the short-term heat storage water tank 10, the first circulating pump 15 and the main water return pipe form a cross-season heat storage water tank heat supply loop.
The solar heat supply unit is connected with the cross-season heat storage water tank 3 and is used for storing heat energy converted from solar energy in the cross-season heat storage water tank 3; the solar heat supply unit and the heat supply loop of the cross-season heat storage water tank 3 jointly form a solar heat supply loop.
The water source heat supply loop is used for converting heat energy of the cross-season heat storage water tank 3 into hot water of the water source heat supply loop through a plurality of times of heat exchange to supply heat for the heat user 12.
The air source heat supply loop is used for converting air energy into hot water of the air source heat supply loop after a plurality of times of heat exchange so as to supply heat to the heat user 12.
The biomass boiler heat supply loop is used for converting heat energy generated by biomass combustion into hot water of the biomass boiler heat supply loop to supply heat to the heat user 12.
The source-network-load coordinated intelligent control system is in signal connection with a temperature sensor in the short-term heat storage water tank 10, a temperature sensor in the cross-season heat storage water tank 3 and a heat user 12 respectively.
The source-network-load coordinated intelligent control system is electrically connected with the first heat exchanger 11, the first circulating pump 15, the first stop valve V4 and the second stop valve V5 respectively.
The solar energy is subjected to seasonal heat storage, the water source and air source heat pump 6 and the biomass boiler 8 are organically combined, the use of primary energy is avoided, energy conservation and environmental protection are achieved under the condition that the heat supply demand of a user is met, meanwhile, the intelligent control system can predict the heat load change according to the heat load of the user and environmental factors, module starting configuration is carried out on the heat source, and the optimal technical economy is achieved.
Specifically, the solar heating unit comprises a solar collector 1, a second heat exchanger 2, a second circulation pump 13 and a third circulation pump 14.
And the outlet of the solar heat collector 1 is communicated with the inlet of the heat supply channel of the second heat exchanger 2.
And the inlet of the solar heat collector 1 is communicated with the outlet of the heat supply channel of the second heat exchanger 2.
The second circulation pump 13 is arranged at the outlet of the heat supply passage of the second heat exchanger 2.
The solar heat collector 1, the second heat exchanger heat supply channel and the second circulating pump 13 form a solar heat exchange circulating loop.
The outlet of the heat taking channel of the second heat exchanger 2 is connected with the heat storage inlet of the cross-season heat storage water tank 3 through a third stop valve V1.
And the inlet of the heat taking channel of the second heat exchanger 2 is connected with the heat storage outlet of the cross-season heat storage water tank 3 through a fourth stop valve V2.
The source-network-load coordinated intelligent control system is electrically connected with the solar heat collector 1, the third stop valve V1, the fourth stop valve V2, the second heat exchanger 2, the second circulating pump 13 and the third circulating pump 14 respectively.
The third circulating pump 14 is arranged at the inlet of the heat taking channel of the second heat exchanger 2.
The second heat exchanger heat taking channel, the cross-season heat storage water tank 3 and the third circulating pump 14 form a cross-season heat exchange circulating loop.
The heat energy obtained by the solar heat collector 1 is subjected to heat exchange with the cross-season heat exchange circulation loop through the solar heat exchange circulation loop in the second heat exchanger 2, the temperature is raised, and then the heat energy is stored in the cross-season heat storage water tank 3.
Further, the water source heating circuit comprises a water source heat exchanger 4, a heat pump 6 and a third heat exchanger 7.
The inlet of the heat supply channel of the water source heat exchanger 4 and the main water supply pipe are connected between the first stop valve V4 and the season-crossing heat storage water tank 3 through a three-way valve 16.
And the outlet of the heat supply channel of the water source heat exchanger 4 is connected with a main water return pipe.
A fifth stop valve V3 is provided at the inlet of the heat supply passage of the water source heat exchanger 4.
The heat supply channel, the main water return pipe, the cross-season heat storage water tank 3 and the main water supply pipe of the water source heat exchanger 4 form a first heat exchange circulation loop of the cross-season heat storage water tank 3 and the water source heat exchanger 4.
And the outlet of the heat taking channel of the water source heat exchanger 4 is connected with the heat pump 6 and is connected with the inlet of the heat supply channel of the third heat exchanger 7 through the heat pump 6.
And the inlet of the heat taking channel of the water source heat exchanger 4 is connected with the outlet of the heat supply channel of the third heat exchanger 7 through a sixth stop valve V6.
And a heat taking channel of the water source heat exchanger 4, a heat pump 6 and a heat supply channel of the third heat exchanger 7 form a second heat exchange circulation loop of the water source heat exchanger 4 and the third heat exchanger 7.
The outlet of the heat taking channel of the third heat exchanger 7 is connected with a main water supply pipe through a seventh stop valve V8 and is connected with the heat storage inlet of the short-term heat storage water tank 10 through the main water supply pipe, and the interface is positioned between the first stop valve V4 and the short-term heat storage water tank 10.
And the inlet of the heat taking channel of the third heat exchanger 7 is connected with the main water return pipe through an eighth stop valve V9, and is connected with the first circulating pump 15 and the heat storage outlet of the short-term heat storage water tank 10 through a main water return pipe, and the interface is positioned between the second stop valve V5 and the first circulating pump 15 to form a third heat exchange loop of the third heat exchanger 7 and the short-term heat storage water tank 10.
The source-network-load coordinated intelligent control system is electrically connected with the heat pump 6, the three-way valve 16, the fifth stop valve V3, the sixth stop valve V6, the seventh stop valve V8, the eighth stop valve V9 and the third heat exchanger 7 respectively.
The heat energy of the cross-season heat storage water tank 3 is converted into hot water of a water source heat supply loop through the sequential heat exchange of the first heat exchange circulation loop, the second heat exchange circulation loop and the third heat exchange loop to supply heat for the heat user 12.
Still further, the air source heating circuit comprises an air source heat exchanger 5.
And the heat supply channel of the air source heat exchanger 5 is communicated with the outside.
And the outlet of the heat taking channel of the air source heat exchanger 5 is connected with a heat pump 6 and is connected with the inlet of the heat supply channel of a third heat exchanger 7 through the heat pump 6.
And the inlet of the heat taking channel of the air source heat exchanger 5 is connected with the outlet of the heat supply channel of the third heat exchanger 7 through a ninth stop valve V7.
The source-network-load coordinated intelligent control system is electrically connected with a ninth cut-off valve V7.
And a heat taking channel of the air source heat exchanger 5 and heat supply channels of the heat pump 6 and the third heat exchanger 7 form a fourth heat exchange circulation loop of the air source heat exchanger 5 and the third heat exchanger 7.
The fourth heat exchange circulation loop exchanges heat with the third heat exchange loop and converts the heat into hot water of the air source heat supply loop to supply heat for the heat user 12.
Preferably, the biomass boiler 8 heating circuit comprises a biomass boiler 8 and a fourth heat exchanger 9.
And a heat supply outlet of the biomass boiler 8 is connected with a heat supply channel inlet of the fourth heat exchanger 9.
And a heat supply inlet of the biomass boiler 8 is connected with a heat supply channel outlet of the fourth heat exchanger 9.
The outlet of the heat taking channel of the fourth heat exchanger 9 is connected with a main water supply pipe through a tenth stop valve V10 and is connected with the heat storage inlet of the short-term heat storage water tank 10 through the main water supply pipe, and the interface is positioned between the first stop valve V4 and the short-term heat storage water tank 10.
The inlet of the heat taking channel of the fourth heat exchanger 9 is connected with a main water return pipe through an eleventh stop valve V11 and is connected with a heat storage outlet of the first circulating pump 15 and the short-term heat storage water tank 10 through the main water return pipe, and the interface is positioned between the second stop valve V5 and the first circulating pump 15 and is used for supplying heat for the heat user 12 by converting hot water in the heat supply loop of the biomass boiler.
The source-grid-load coordinated intelligent control system is electrically connected with the fourth heat exchanger 9, the tenth stop valve V10 and the eleventh stop valve V11 respectively.
The invention relates to a modular combined intelligent heat supply method based on various clean energy sources, which comprises the following steps:
when the sunlight is sufficient and the heat supply loop of the cross-season heat storage water tank does not supply heat, the third stop valve V1 and the fourth stop valve V2 are opened, the second circulating pump 13 and the third circulating pump 14 are started, and the solar heat collector 1 exchanges heat of the collected solar energy in the second heat exchanger 2 through the solar heat exchange circulating loop and the cross-season heat exchange circulating loop, raises the temperature and stores the solar energy in the cross-season heat storage water tank 3.
When the cross-season hot water storage tank temperature reaches the designated temperature, the third stop valve V1, the fourth stop valve V2, the second circulation pump 13, and the third circulation pump 14 are closed.
When the heat in the cross-season heat storage water tank meets the heat supply requirement, the water source heat supply loop, the air source heat supply loop and the biomass boiler heat supply loop are cut off, the left and right passages of the first stop valve V4, the second stop valve V5 and the three-way valve 16 are opened, the fifth stop valve V3-the eleventh stop valve V11 are closed, the first circulating pump 15 is started, and the solar heat supply loop is opened to supply heat for the heat user 12.
When the heat in the cross-season hot water storage tank does not meet the heat supply requirement and the outdoor temperature is high, the left middle passages of the fifth stop valve V3-ninth stop valve V7 and the three-way valve 16 are opened, the first stop valve V4, the second stop valve V5, the tenth stop valve V10 and the eleventh stop valve V11 are closed, the air source heat exchanger 5, the third heat exchanger 7 and the first circulating pump 15 are started, the water source heat exchanger 4 is closed, and the solar heat supply loop and the air source heat supply loop are opened to supply heat for the heat user 12.
When the heat in the cross-season heat storage water tank does not meet the heat supply requirement and the outdoor temperature is high, the left middle passages of the fifth stop valve V3-eighth stop valve V9 and the three-way valve 16 are opened, the first stop valve V4, the second stop valve V5, the ninth stop valve V7-eleventh stop valve V11 are closed, the water source heat exchanger 4, the third heat exchanger 7 and the first circulating pump 15 are started, the air source heat exchanger 5 is closed, and the solar heat supply loop and the water source heat supply loop are opened to supply heat for the heat user 12.
When peak regulation is needed, the tenth stop valve V10 and the eleventh stop valve V11 are opened, the first stop valve V4, the second stop valve V5 and the fifth stop valve V3 to the ninth stop valve V7 are closed, the biomass boiler 8, the fourth heat exchanger 9 and the first circulating pump 15 are started, and a heat supply loop of the biomass boiler is opened to supply heat for users.
Through the current service environment, the combined heat supply mode of the solar heat supply loop, the water source heat supply loop, the air source heat supply loop and the biomass boiler heat supply loop is reasonably selected, the waste of primary energy is avoided, and the purposes of energy conservation and environmental protection are realized under the condition of meeting the heat supply demand of users.
As another embodiment, the modular combined intelligent heat supply method based on multiple clean energy sources of the present invention includes:
the intelligent control system adopts various energy modules to run in a complementary mode, and the source-network-load coordination mode controls the opening degree of the first stop valve V4-eleventh stop valve V11, the direction switching and the opening degree of the three-way valve 16, the starting or the closing of the first circulating pump 15-third circulating pump 14 and the starting or the closing of the first heat exchanger 11-fourth heat exchanger 9 according to signals transmitted by temperature sensors in the cross-season heat storage water tank 3 and the short-term heat storage water tank 10 and signals transmitted by the heat user 12, all heat supply circulating loops of the heat source integration module are mutually coupled and opened, solar energy, electric energy or biomass energy is randomly generated, and the heat of the solar energy, the electric energy or the biomass energy is input into the short-term heat storage water tank 10 to meet the change of the heat load of the user.
The intelligent control system with source-network-load coordination can predict the heat load change according to the heat load of the user and environmental factors, and performs module starting configuration on the heat source, so that the effect of optimal technical economy is achieved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The method disclosed by the embodiment corresponds to the system disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (7)

1. The utility model provides a modularization combination formula intelligence heating system based on multiple clean energy, modularization combination formula intelligence heating system based on multiple clean energy includes heat supply network system and hot user, its characterized in that, modularization combination formula intelligence heating system based on multiple clean energy still includes: the heat source integration module is used for complementing a heat supply system and a source-network-load coordinated intelligent control system;
the heat source integrated module complementary heat supply system comprises a heat source integrated module, a short-term heat storage water tank and a first heat exchanger;
a hot water outlet of the heat source integration module is connected with a heat storage inlet of the short-term heat storage water tank;
a hot water inlet of the heat source integration module is connected with a heat storage outlet of the short-term heat storage water tank;
a heat taking outlet of the short-term heat storage water tank is connected with the heat supply and water supply of a heat user through a heat supply network system;
a heat taking inlet of the short-term heat storage water tank is connected with heat supply backwater of a heat user through a heat supply network system;
a temperature sensor and a phase change heat accumulator are arranged in the short-term heat storage water tank; composite phase-change materials are filled in the phase-change heat accumulator;
the heat source integration module comprises a season-crossing heat storage water tank, a main water supply pipe, a main water return pipe, a first circulating pump, a solar heat supply unit, a water source heat supply loop, an air source heat supply loop and a biomass boiler heat supply loop;
the cross-season heat storage water tank is connected with a heat storage inlet of the short-term heat storage water tank through a main water supply pipe as a hot water outlet of the heat source integration module, and is connected with a heat storage outlet of the short-term heat storage water tank through a main water return pipe as a hot water inlet of the heat source integration module;
a temperature sensor and a phase change heat accumulator are arranged in the cross-season heat storage water tank; composite phase-change materials are filled in the phase-change heat accumulator;
the first circulating pump is arranged on a main water return pipe between a hot water inlet of the heat source integration module and a heat storage outlet of the short-term heat storage water tank;
a first stop valve is arranged on the main water supply pipe;
a second stop valve is arranged on the main water return pipe and between the first circulating pump and the season-crossing heat storage water tank;
the cross-season heat storage water tank, the main water supply pipe, the short-term heat storage water tank, the first circulating pump and the main water return pipe form a cross-season heat storage water tank heat supply loop;
the solar heat supply unit is connected with the cross-season heat storage water tank and is used for storing heat energy converted from solar energy in the cross-season heat storage water tank; the solar heat supply unit and the seasonal heat storage water tank heat supply loop jointly form a solar heat supply loop;
the water source heat supply loop is used for converting heat energy of the cross-season heat storage water tank into hot water of the water source heat supply loop through heat exchange for a plurality of times so as to supply heat for heat users;
the air source heat supply loop is used for converting air energy into hot water of the air source heat supply loop through heat exchange for a plurality of times to supply heat to a heat user;
the biomass boiler heat supply loop is used for converting heat energy generated by biomass combustion into hot water of the biomass boiler heat supply loop to supply heat to a heat user;
the source-network-load coordinated intelligent control system is respectively in signal connection with a temperature sensor in the short-term heat storage water tank, a temperature sensor in the cross-season heat storage water tank and a heat user;
the source-network-load coordinated intelligent control system is electrically connected with the first heat exchanger, the first circulating pump, the first stop valve and the second stop valve respectively.
2. The modular combined intelligent heating system based on multiple clean energy sources according to claim 1, wherein the solar heating unit comprises a solar heat collector, a second heat exchanger, a second circulating pump and a third circulating pump;
the outlet of the solar heat collector is communicated with the inlet of the heat supply channel of the second heat exchanger;
the inlet of the solar heat collector is communicated with the outlet of the heat supply channel of the second heat exchanger;
the second circulating pump is arranged at the outlet of the heat supply channel of the second heat exchanger;
the solar heat collector, the second heat exchanger heat supply channel and the second circulating pump form a solar heat exchange circulating loop;
an outlet of a heat taking channel of the second heat exchanger is connected with a heat storage inlet of the season-crossing heat storage water tank through a third stop valve;
an inlet of a heat taking channel of the second heat exchanger is connected with a heat storage outlet of the season-crossing heat storage water tank through a fourth stop valve;
the source-network-load coordinated intelligent control system is respectively and electrically connected with the solar heat collector, the third stop valve, the fourth stop valve, the second heat exchanger, the second circulating pump and the third circulating pump;
the third circulating pump is arranged at the inlet of the heat taking channel of the second heat exchanger;
the second heat exchanger heat taking channel, the cross-season heat storage water tank and the third circulating pump form a cross-season heat exchange circulating loop;
the heat energy obtained by the solar heat collector is subjected to heat exchange with the cross-season heat exchange circulation loop through the solar heat exchange circulation loop in the second heat exchanger, and is stored in the cross-season heat storage water tank after the temperature is raised.
3. The modular combined intelligent heating system based on multiple clean energy sources according to claim 1, wherein the water source heating loop comprises a water source heat exchanger, a heat pump and a third heat exchanger;
the inlet of a heat supply channel of the water source heat exchanger and a main water supply pipe are connected between a first stop valve and the season-crossing heat storage water tank through a three-way valve;
the outlet of the heat supply channel of the water source heat exchanger is connected with a main water return pipe;
a fifth stop valve is arranged at the inlet of a heat supply channel of the water source heat exchanger;
a heat supply channel, a main water return pipe, a season-crossing heat storage water tank and a main water supply pipe of the water source heat exchanger form a first heat exchange circulation loop of the season-crossing heat storage water tank and the water source heat exchanger;
the outlet of the heat taking channel of the water source heat exchanger is connected with the heat pump and is connected with the inlet of the heat supply channel of the third heat exchanger through the heat pump;
the inlet of a heat taking channel of the water source heat exchanger is connected with the outlet of a heat supply channel of the third heat exchanger through a sixth stop valve;
a heat taking channel of the water source heat exchanger, the heat pump and a heat supply channel of the third heat exchanger form a second heat exchange circulation loop of the water source heat exchanger and the third heat exchanger;
an outlet of a heat taking channel of the third heat exchanger is connected with a main water supply pipe through a seventh stop valve and is connected with a heat storage inlet of the short-term heat storage water tank through the main water supply pipe, and a connector is positioned between the first stop valve and the short-term heat storage water tank;
an inlet of a heat taking channel of the third heat exchanger is connected with the main water return pipe through an eighth stop valve, and is connected with the first circulating pump and a heat storage outlet of the short-term heat storage water tank through the main water return pipe, and a connector is positioned between the second stop valve and the first circulating pump to form a third heat exchange loop of the third heat exchanger and the short-term heat storage water tank;
the source-network-load coordinated intelligent control system is electrically connected with the heat pump, the three-way valve, the fifth stop valve, the sixth stop valve, the seventh stop valve, the eighth stop valve and the third heat exchanger respectively;
the heat energy of the cross-season heat storage water tank is converted into hot water of a water source heat supply loop through the sequential heat exchange of the first heat exchange circulation loop, the second heat exchange circulation loop and the third heat exchange loop so as to supply heat for a heat user.
4. The modular combined intelligent multiple clean energy based heating system according to claim 3, wherein the air source heating circuit comprises an air source heat exchanger;
the heat supply channel of the air source heat exchanger is communicated with the outside;
the outlet of the heat taking channel of the air source heat exchanger is connected with the heat pump and is connected with the inlet of the heat supply channel of the third heat exchanger through the heat pump;
the inlet of a heat taking channel of the air source heat exchanger is connected with the outlet of a heat supply channel of the third heat exchanger through a ninth stop valve;
the source-network-load coordinated intelligent control system is electrically connected with the ninth stop valve;
a heat taking channel of the air source heat exchanger, a heat pump and a heat supply channel of the third heat exchanger form a fourth heat exchange circulation loop of the air source heat exchanger and the third heat exchanger;
and the fourth heat exchange circulation loop exchanges heat with the third heat exchange loop and converts the heat into hot water of the air source heat supply loop to supply heat for a heat user.
5. The modular combined intelligent heating system based on multiple clean energy sources according to claim 1, wherein the biomass boiler heating circuit comprises a biomass boiler and a fourth heat exchanger;
the heat supply outlet of the biomass boiler is connected with the heat supply channel inlet of the fourth heat exchanger;
a heat supply inlet of the biomass boiler is connected with a heat supply channel outlet of the fourth heat exchanger;
an outlet of a heat taking channel of the fourth heat exchanger is connected with a main water supply pipe through a tenth stop valve and is connected with a heat storage inlet of the short-term heat storage water tank through the main water supply pipe, and a connector is positioned between the first stop valve and the short-term heat storage water tank;
an inlet of a heat taking channel of the fourth heat exchanger is connected with a main water return pipe through an eleventh stop valve and is connected with a first circulating pump and a heat storage outlet of the short-term heat storage water tank through the main water return pipe, and a connector is located between the second stop valve and the first circulating pump and is used for converting hot water in a heat supply loop of the biomass boiler into hot water to supply heat for a heat user;
and the source-network-load coordinated intelligent control system is electrically connected with the fourth heat exchanger, the tenth stop valve and the eleventh stop valve respectively.
6. The modularized combined intelligent heat supply method based on multiple clean energy sources is characterized by comprising the following steps of:
when sunlight is sufficient and the heat supply loop of the cross-season heat storage water tank does not supply heat, the third stop valve and the fourth stop valve are opened, the second circulating pump and the third circulating pump are started, and the solar heat collector exchanges heat of the collected solar energy in the second heat exchanger through the solar heat exchange circulating loop and the cross-season heat exchange circulating loop, raises the temperature and stores the solar energy in the cross-season heat storage water tank;
when the temperature of the cross-season heat storage water tank reaches the designated temperature, the third stop valve, the fourth stop valve, the second circulating pump and the third circulating pump are closed;
when the heat in the cross-season heat storage water tank meets the heat supply requirement, the water source heat supply loop, the air source heat supply loop and the biomass boiler heat supply loop are cut off, the left and right passages of the first stop valve, the second stop valve and the three-way valve are opened, the fifth stop valve to the eleventh stop valve are closed, the first circulating pump is started, and the solar heat supply loop is opened to supply heat for a heat user;
when the heat in the cross-season heat storage water tank does not meet the heat supply requirement and the outdoor temperature is high, opening the fifth stop valve, the ninth stop valve and a left middle passage of the three-way valve, closing the first stop valve, the second stop valve, the tenth stop valve and the eleventh stop valve, starting the air source heat exchanger, the third heat exchanger and the first circulating pump, closing the water source heat exchanger, and opening the solar heat supply loop and the air source heat supply loop to supply heat for a heat user;
when the heat in the cross-season heat storage water tank does not meet the heat supply requirement and the outdoor temperature is high, opening the fifth stop valve, the eighth stop valve and the left middle channel of the three-way valve, closing the first stop valve, the second stop valve, the ninth stop valve, the eleventh stop valve, starting the water source heat exchanger, the third heat exchanger and the first circulating pump, closing the air source heat exchanger, and opening the solar heat supply loop and the water source heat supply loop to supply heat for heat users;
when peak regulation is needed, the tenth stop valve and the eleventh stop valve are opened, the first stop valve, the second stop valve, the fifth stop valve, the ninth stop valve and the ninth stop valve are closed, the biomass boiler, the fourth heat exchanger and the first circulating pump are started, and a heat supply loop of the biomass boiler is opened to supply heat for users.
7. The modularized combined intelligent heat supply method based on multiple clean energy sources is characterized by comprising the following steps of:
the intelligent control system adopts various energy modules to run in a complementary mode, and source-network-load coordination controls the opening degree of the first stop valve to the eleventh stop valve, the direction switching and opening degree of the three-way valve, the starting or closing of the first circulating pump to the third circulating pump, the starting or closing of the first heat exchanger to the fourth heat exchanger and the mutual coupling opening of all heat supply circulation loops of the heat source integration module according to signals transmitted by temperature sensors in the cross-season heat storage water tank and the short-term heat storage water tank and signals transmitted by a heat user, so that solar energy, electric energy or biomass energy is randomly generated and is input into the short-term heat storage water tank to meet the change of the heat load of the user.
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CN115169994B (en) * 2022-09-05 2023-09-26 北京宇乾能源科技有限责任公司 Complementary control decision processing method and complementary control decision processing system for multiple clean energy sources

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