CN114777189A - Multi-renewable energy complementary thermoelectric gas fertilizer combined supply system - Google Patents

Multi-renewable energy complementary thermoelectric gas fertilizer combined supply system Download PDF

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Publication number
CN114777189A
CN114777189A CN202210502685.4A CN202210502685A CN114777189A CN 114777189 A CN114777189 A CN 114777189A CN 202210502685 A CN202210502685 A CN 202210502685A CN 114777189 A CN114777189 A CN 114777189A
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valve
heat
biogas
communicated
energy
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李金平
钱月刚
李天澍
李紫荆
黄娟娟
任海伟
南军虎
王昱
郑健
张东
李晓霞
张学民
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Lanzhou University of Technology
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Lanzhou University of Technology
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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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M1/00—Apparatus for enzymology or microbiology
    • C12M1/107—Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F24D11/0235—Central heating systems using heat accumulated in storage masses using heat pumps water heating system with recuperation of waste 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
    • 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
    • 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
    • F24D19/1045—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump and 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
    • 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
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/106—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump and solar energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • F24D2200/16—Waste heat
    • F24D2200/28—Biological processes
    • 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

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Abstract

A multi-renewable energy source complementary thermoelectric gas-fertilizer combined supply system belongs to the technical field of energy utilization and conversion. The system takes biomass energy, solar energy and air energy as input, and takes heat, electricity, gas and biogas slurry and biogas residues as output. After being pretreated, biomass is subjected to constant-temperature anaerobic fermentation and is converted into biogas and biogas slurry and biogas residues, the biogas enters a gas storage tank through a purification device and is stored, part of the stored biogas is directly used for cooking by users, the other part of the stored biogas enters a biogas generator for cogeneration, and the biogas slurry and biogas residues are used as organic fertilizers for the users; the solar energy is converted into electric energy and heat energy through the photoelectric and photothermal integrated assembly for users to use; the low-level heat energy of the air energy and the solar energy is upgraded by a double-heat-source heat pump and then is used by users. The heat storage system adjusts the problem of energy supply and demand matching, and the controller is used for controlling whether the system is externally connected with a power grid.

Description

Multi-renewable energy source complementary thermoelectric gas-fertilizer combined supply system
Technical Field
The invention relates to an energy utilization and conversion technology, in particular to a multi-renewable energy complementary combined heat, power, gas and fertilizer supply technology.
Background
At present, most of distributed energy systems based on renewable energy sources use single energy sources such as solar energy, biomass energy or wind energy as input, and the system is greatly influenced by factors such as regions, climates, seasons and the like, so that the system cannot continuously and stably meet the load requirements of users. The invention discloses a combined cooling, heating and power system (application number 201910138572.9) utilizing solar energy, which can simultaneously meet the energy utilization requirements of cold, heat and electricity multistrand energy sources by efficiently recycling the solar energy at medium and low temperatures, saves resources, protects the environment, has huge economic and ecological benefits, but has the defects of obvious fluctuation along with time and seasons, unstable energy supply and the like. The invention discloses a distributed biomass energy combined cooling heating and power system (application number 201920165681.5), which can realize energy recycling, output electric quantity, heat quantity and cold quantity while outputting fuel gas, and has high energy utilization rate, but sewage generated by a biomass gasification utilization mode is easy to pollute the environment. The invention relates to a combined cooling heating and power system (application number 201811015516.8), which combines a thermal power generation device, a photovoltaic power generation device and a heat pump, solves the problems of low conversion efficiency and unstable power supply of the photovoltaic power generation device in the prior art, provides heat energy and cold energy for users at the same time, does not effectively utilize the heat generated by solar energy while improving the conversion efficiency, and has low solar energy utilization rate.
Disclosure of Invention
The invention aims to provide a multi-renewable energy source complementary combined heat, power, gas and fertilizer supply system.
The invention relates to a multi-renewable energy complementary thermoelectric gas fertilizer combined supply system.A photoelectric and photo-thermal integrated component 1 is communicated with a heat storage water tank 2 through a first valve V-1 and a first circulating water pump P-1, a water supplementing pipeline is communicated with the heat storage water tank 2 through a second valve V-2, a first temperature sensor T1 is arranged on the heat storage water tank 2, the first heat storage water tank 2 is communicated with a dual-heat-source heat pump 3 through a third valve V-3, a fourth valve V-4 and a second circulating water pump P-2, the first heat storage water tank 2 is communicated with a user 13 through a third valve V-3, a fourth valve V-4, a fifth valve V-5, a sixth valve V-6, a seventh valve V-7 and a third circulating water pump P-3, and the dual-heat source heat pump 3 is communicated with the user 13 through the fifth valve V-5, the sixth valve V-6, The seventh valve V-7 and the third circulating water pump P-3 are communicated with a user 13, the pretreatment mechanism 5 is communicated with the constant-temperature anaerobic fermentation mechanism 6 through a tenth valve V-10, the constant-temperature anaerobic fermentation mechanism 6 is provided with a second temperature sensor T2 and a first pressure sensor P1, the constant-temperature anaerobic fermentation mechanism 6 is communicated with a biogas purification mechanism 7 through an eighth valve V-8, the constant-temperature anaerobic fermentation mechanism 6 is communicated with a second water tank 10 through an eleventh valve V-11 and a fourth circulating water pump P-4, the constant-temperature anaerobic fermentation heat storage mechanism 6 discharges biogas residues through a twelfth valve V-12 for the user 13, the biogas purification mechanism 7 is communicated with a biogas storage tank 8, the biogas storage tank 8 is provided with a second pressure sensor P2, the biogas storage tank 8 is communicated with the user 13 and a biogas generator 9 through a ninth valve V-9, the flue gas generated by the biogas generator 9 is discharged into the atmosphere after waste heat is recovered by the heat exchanger 11, the cylinder jacket water of the biogas generator 9 is cooled by the heat exchanger (12) and then enters the biogas generator 9, the second heat storage water tank 10 is connected with the first heat exchanger 12 and the second heat exchanger 11 by the fifth circulating water pump P-5 and the thirteenth valve V-13, and the electric energy generated by the photoelectric and photothermal integrated component 1 is used by a user 13 and system electric equipment through the controller 4.
The beneficial effects of the invention are: renewable energy is used as energy input of the system, a biomass energy constant-temperature anaerobic fermentation technology, a solar photoelectric and photo-thermal integration technology, a double-heat-source heat pump technology, a biogas generator cogeneration technology and a heat storage technology are organically integrated into a whole, the system fully utilizes solar energy and biomass energy, waste heat recovery is carried out in the system, and the energy utilization efficiency is improved; by utilizing the heat storage technology and the double-heat-source heat pump technology, the thermoelectric ratio of the system is flexibly adjusted, the requirements of users on different types of energy sources in different time periods are met, the reliability and the stability of energy supply of the system are improved, and the full and efficient utilization of renewable resources in the area where the users are located and the protection of the ecological environment are realized.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
As shown in figure 1, the invention relates to a multi-renewable energy complementary thermoelectric gas fertilizer combined supply system, a photoelectric and photo-thermal integrated component 1 is communicated with a heat storage water tank 2 through a first valve V-1 and a first circulating water pump P-1, a water supplementing pipeline is communicated with the heat storage water tank 2 through a second valve V-2, a first temperature sensor T1 is arranged on the heat storage water tank 2, the first heat storage water tank 2 is communicated with a dual-heat-source heat pump 3 through a third valve V-3, a fourth valve V-4 and a second circulating water pump P-2, the first heat storage water tank 2 is communicated with a user 13 through a third valve V-3, a fourth valve V-4, a fifth valve V-5, a sixth valve V-6, a seventh valve V-7 and a third circulating water pump P-3, and the dual-heat-source heat pump 3 is communicated with the user 13 through a fifth valve V-5, A sixth valve V-6, a seventh valve V-7 and a third circulating water pump P-3 are communicated with a user 13, a pretreatment mechanism 5 is communicated with a constant temperature anaerobic fermentation mechanism 6 through a tenth valve V-10, the constant temperature anaerobic fermentation mechanism 6 is provided with a second temperature sensor T2 and a first pressure sensor P1, the constant temperature anaerobic fermentation mechanism 6 is communicated with a biogas purification mechanism 7 through an eighth valve V-8, the constant temperature anaerobic fermentation mechanism 6 is communicated with a second heat storage water tank 10 through an eleventh valve V-11 and a fourth circulating water pump P-4, the constant temperature anaerobic fermentation mechanism 6 discharges biogas slurry and biogas residues through a twelfth valve V-12 for the user 13, the biogas purification mechanism 7 is communicated with a biogas storage tank 8, the gas storage tank 8 is provided with a second pressure sensor P2, the biogas storage tank 8 is communicated with the user 13 and a biogas generator 9 through a ninth valve V-9, the flue gas generated by the biogas generator 9 is discharged into the atmosphere after waste heat is recovered by the heat exchanger 11, the cylinder jacket water of the biogas generator 9 is cooled by the heat exchanger (12) and then enters the biogas generator 9, the second heat storage water tank 10 is connected with the first heat exchanger 12 and the second heat exchanger 11 by the fifth circulating water pump P-5 and the thirteenth valve V-13, and the electric energy generated by the photoelectric and photothermal integrated component 1 is used by a user 13 and system electric equipment through the controller 4.
As shown in figure 1, the first heat storage water tank 2 is communicated with the outlet of the water side evaporator of the double-heat-source heat pump 3 through a fourth valve V-4 and a second circulating water pump P-2, and is communicated with the inlet of the water side evaporator of the double-heat-source heat pump 3 through a third valve V-3.
As shown in figure 1, low-temperature water enters the photoelectric and photothermal integrated assembly 1 through the first circulating water pump P-1 and the first valve V-1, and a cooling medium of the photoelectric and photothermal integrated assembly 1 is water, air or a refrigerant.
As shown in FIG. 1, the second temperature sensor T2 and the first pressure sensor P1 are installed in the top gas storage area of the thermostatic anaerobic fermentation mechanism 6.
As shown in fig. 1, the second thermal storage water tank 10 is a built-in coil type, an outlet of the coil is connected with the first heat exchanger 12 through a fifth circulating water pump P-5 and a thirteenth valve V-13, and an inlet of the coil is connected with the second heat exchanger 11.
The invention will be further developed by reference to the following specific examples. The invention integrates a system capable of continuously and stably providing thermoelectric gas fertilizer for rural residential buildings by utilizing a constant-temperature anaerobic fermentation technology, a photoelectric and photothermal integration technology, a double-heat-source heat pump technology, a biogas and heat cogeneration technology and a heat storage technology.
As shown in fig. 1, in the system, an optoelectronic-optothermal integrated component 1, a heat storage water tank 2, a dual-heat-source heat pump 3 and a controller 4 are arranged at a user end; the pretreatment mechanism 5, the constant-temperature anaerobic fermentation mechanism 6, the methane purification mechanism 7, the gas storage tank 8, the methane generator 9, the second heat exchanger 11, the first heat exchanger 12 and the heat storage water tank 10 are arranged in a centralized manner.
Solar energy is converted into heat energy and electric energy through the photoelectric and photothermal integrated component 1. The photoelectric and photothermal integrated component 1 is communicated with a heat storage water tank 2 through a first valve V-1 and a first circulating water pump P-1, a water supplementing pipeline is communicated with the heat storage water tank 2 through a second valve V-2, the heat storage water tank 2 is provided with a first temperature sensor T1, the heat storage water tank 2 is communicated with a dual heat source heat pump 3 through a third valve V-3, a fourth valve V-4 and a second circulating water pump P-2, the heat storage water tank 2 is communicated with a dual heat source heat pump 3 through a third valve V-3, a fourth valve V-4 and a fifth valve V-5, the sixth valve V-6, the seventh valve V-7 and the third circulating water pump P-3 are communicated with a user 13, and the double-heat-source heat pump 3 is communicated with the user 13 through the fifth valve V-5, the sixth valve V-6, the seventh valve V-7 and the third circulating water pump P-3.
When the temperature of the heat storage water tank 2 is more than or equal to 40 ℃, a third circulating water pump P-3, the a-b side of a third valve V-3, the a-c side of a fourth valve V-4, the b-c side of a fifth valve V-5, the b-c side of a sixth valve V-6 and the a-b-c side of a seventh valve V-7 are started, and the heating load and the domestic hot water load of a user 13 are met in a water tank direct supply mode; when the solar radiation intensity is greater than 0 and the temperature of the heat storage water tank 2 is less than 40 ℃, the third circulating water pump P-3, the fifth valve V-5, the a-c side of the sixth valve V-6 and the a-b-c side of the seventh valve V-7 are started, so that the double-heat-source heat pump meets the heating load and the domestic hot water load of a user 13 in an air source mode; when the solar radiation intensity =0 and the temperature of the heat storage water tank 2 is less than 7 ℃ and less than 40 ℃, opening a second circulating water pump P-2, a third circulating water pump P-3, the a-c sides of a third valve V-3, a fifth valve V-5 and a sixth valve V-6, the a-b sides of a fourth valve V-4 and the a-b-c sides of a seventh valve V-7, so that the double heat source heat pump can meet the heating load and the domestic hot water load of a user 13 in a water source mode; and when the solar radiation intensity =0 and the temperature of the heat storage water tank 2 is less than or equal to 7 ℃, opening the third circulating water pump P-3, the fifth valve V-5, the a-c side of the sixth valve V-6 and the a-b-c side of the seventh valve V-7, so that the double heat source heat pump can meet the heating load and the domestic hot water load of the user 13 in an air source mode.
Biomass (straw, feces, fruit and vegetable waste and the like) enters a pretreatment mechanism 5 for pretreatment, enters a constant-temperature anaerobic fermentation mechanism 6 through a tenth valve V-10 for anaerobic fermentation (37 ℃), the constant-temperature anaerobic fermentation mechanism 6 is provided with a second temperature sensor T2 and a first pressure sensor P1 for monitoring the temperature and pressure changes in the constant-temperature anaerobic fermentation mechanism 6, biogas generated by the constant-temperature anaerobic fermentation mechanism 6 enters a biogas purification mechanism 7 through an eighth valve V-8 for purification, the purified biogas enters a gas storage tank 8 for storage, and biogas slurry and biogas residue are supplied to a user 13 through a twelfth valve V-12 for use as organic fertilizer. And when the temperature in the constant-temperature anaerobic fermentation mechanism 6 is lower than 37 ℃, opening an eleventh valve V-11 and a fourth circulating water pump P-4 to heat the constant-temperature anaerobic fermentation mechanism 6.
The gas storage tank 8 is provided with a second pressure sensor P2 for monitoring the pressure change in the gas storage tank 8, and the methane in the gas storage tank 8 is supplied to the user 13 for cooking through the a-c side of the ninth valve V-9 and is supplied to the methane generator 9 for cogeneration through the a-b side of the ninth valve V-9. The flue gas of the biogas generator 9 is cooled by the second heat exchanger 11 and then discharged into the atmosphere, and the cylinder liner water is cooled by the first heat exchanger 12 and then flows back to the biogas generator 9. The water in the heat storage water tank 10 sequentially passes through a fifth circulating water pump P-5, a thirteenth valve V-13, a first heat exchanger 12 and a second heat exchanger 11 to recover the cylinder liner water waste heat and the flue gas waste heat of the biogas generator 9.
When the power generation amount of the photoelectric and photothermal integrated component 1 and the biogas generator 9 is less than the total electric load of the system (user electric load and system operation power consumption), purchasing power from the power grid through the controller 4; when the generated energy of the photoelectric and photothermal integrated component 1 and the biogas generator 9 is greater than the total electrical load of the system (user electrical load and system operation power consumption), electricity is sold to the power grid through the controller 4.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several equivalents and modifications may be made without departing from the principle of the present invention, and these equivalents and modifications should also be included in the protection scope of the present invention.

Claims (5)

1. A multi-renewable energy complementary thermoelectric gas-fertilizer combined supply system is characterized in that a photoelectric and photothermal integrated component (1) is communicated with a heat storage water tank (2) through a first valve (V-1) and a first circulating water pump (P-1), a water supplementing pipeline is communicated with the heat storage water tank (2) through a second valve (V-2), the heat storage water tank (2) is provided with a first temperature sensor (T1), the first heat storage water tank (2) is communicated with a double heat source heat pump (3) through a third valve (V-3), a fourth valve (V-4), a fifth valve (V-5), a sixth valve (V-6), a seventh valve (V-7) and a third circulating water pump (P-3), the first heat storage water tank (2) is communicated with a user (13) through a third valve (V-3), a fourth valve (V-4), a fifth valve (V-5), a sixth valve (V-6), a seventh valve (V-7) and the third circulating water pump (P-3), the double heat source heat pump (3) is communicated with a user (13) through a fifth valve (V-5), a sixth valve (V-6), a seventh valve (V-7) and a third circulating water pump (P-3), the pretreatment mechanism (5) is communicated with the constant temperature anaerobic fermentation mechanism (6) through a tenth valve (V-10), the constant temperature anaerobic fermentation mechanism (6) is provided with a second temperature sensor (T2) and a first pressure sensor (P1), the constant temperature anaerobic fermentation mechanism (6) is communicated with the biogas purification mechanism (7) through an eighth valve (V-8), the constant temperature anaerobic fermentation mechanism (6) is communicated with the second heat storage water tank (10) through an eleventh valve (V-11) and a fourth circulating water pump (P-4), and the constant temperature anaerobic fermentation mechanism (6) discharges biogas residues through a twelfth valve (V-12), the biogas purification mechanism (7) is communicated with a gas storage tank (8), a second pressure sensor (P2) is arranged on the gas storage tank (8), the gas storage tank (8) is communicated with a user (13) and a biogas generator (9) through a ninth valve (V-9), the flue gas generated by the biogas generator (9) is discharged into the atmosphere after the waste heat is recovered by a heat exchanger (11), the cylinder liner water of the biogas generator (9) is cooled by a heat exchanger (12) and then enters the biogas generator (9), a second heat storage water tank (10) is connected with a first heat exchanger (12) and a second heat exchanger (11) through a fifth circulating water pump (P-5) and a thirteenth valve (V-13), and the electric energy generated by the photoelectric and photothermal integrated component (1) is used by the user (13) and system electric equipment through a controller (4).
2. The multi-renewable energy complementary combined heat, power, gas and fertilizer system according to claim 1, wherein: the first heat storage water tank (2) is communicated with the outlet of the water side evaporator of the double-heat-source heat pump (3) through a fourth valve (V-4) and a second circulating water pump (P-2), and is communicated with the inlet of the water side evaporator of the double-heat-source heat pump (3) through a third valve (V-3).
3. The multi-renewable energy complementary combined heat, power, gas and fertilizer system according to claim 1, wherein: the water entering the photoelectric and photothermal integrated assembly (1) through the first circulating water pump (P-1) and the first valve (V-1) is low-temperature water, and the cooling medium of the photoelectric and photothermal integrated assembly (1) is water, air or a refrigerant.
4. The multi-renewable energy complementary combined heat, power, gas and fertilizer system according to claim 1, wherein: the second temperature sensor (T2) and the first pressure sensor (P1) are arranged in the top gas storage area of the constant-temperature anaerobic fermentation mechanism (6).
5. The multi-renewable energy complementary combined heat and power and gas fertilizer system according to claim 1, wherein: the second heat storage water tank (10) is of a built-in coil type, an outlet of the coil is connected with the first heat exchanger (12) through a fifth circulating water pump (P-5) and a thirteenth valve (V-13), and an inlet of the coil is connected with the second heat exchanger (11).
CN202210502685.4A 2022-05-10 2022-05-10 Multi-renewable energy complementary thermoelectric gas fertilizer combined supply system Pending CN114777189A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL443887A1 (en) * 2023-02-24 2024-08-26 Przybylski Bogusz Rotag Biogas plant cogeneration system

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