CN111692777A - Active energy storage type all-year-round supply system of centralized heat supply network and control method thereof - Google Patents
Active energy storage type all-year-round supply system of centralized heat supply network and control method thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004146 energy storage Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000010438 heat treatment Methods 0.000 claims abstract description 129
- 238000005338 heat storage Methods 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 67
- 238000009825 accumulation Methods 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 101000878595 Arabidopsis thaliana Squalene synthase 1 Proteins 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 8
- 230000001932 seasonal effect Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F24D11/0235—Central heating systems using heat accumulated in storage masses using heat pumps water heating system with recuperation of waste energy
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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
- 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
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
-
- 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
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention provides an active energy storage type all-year-round supply system of a centralized heat supply network and a control method thereof. The system can realize active heat storage and recovery of low-grade waste heat, realize cross-season storage and utilization of heat, avoid seasonal waste of energy and improve energy utilization efficiency. The system has different seasonal operation modes, can realize the supply of hot water and the heating in winter all the year round, and can also realize the cooling in summer.
Description
Technical Field
The invention relates to the field of energy and environmental protection, in particular to a heat supply system and a control method thereof.
Background
The production and consumption of the power plant are synchronously completed, and in non-heating seasons, the waste heat of the exhaust steam of the power plant lacks a means for storage and utilization, and is mostly released and dissipated into the atmosphere, so that the energy waste is caused, and therefore, the energy of the power plant has great energy-saving potential from the analysis of an optimization perspective. Meanwhile, the living hot water, central heating or cooling and the like of residents often need to consume additional energy.
For example, domestic hot water needs to be heated locally at a water-using location by a small heater for use by a local range of users. Of course, there is a domestic hot water centralized supply system, for example, a district boiler room for centralized supply of domestic hot water, but such a system has problems in that: the domestic hot water demand is discontinuous, and has great fluctuation, therefore maintains and adjusts and control the degree of difficulty great.
The centralized heat supply of residents is usually supplied by a residential boiler room or a municipal heat supply network, and the boiler room or the municipal heat supply network needs to burn coal, gas and the like to generate heat. The cooling of the residents requires the air conditioner to consume electric energy to complete.
Therefore, a system which makes full use of the waste heat of the power plant and realizes the integral supply of domestic hot water and cold and warm for residents is lacked in the prior art.
Disclosure of Invention
In view of the shortcomings and drawbacks of the prior art, the present invention provides a concentrated heat storage type heat supply system, comprising: a heat source, a heat storage/release unit, a heat user;
a circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat storage/release unit comprises a heat storage module, a supply/return main pipe, a plurality of pipelines and valves; the first heating medium exchanges heat with the heat exchange equipment of the heat source and obtains heat, and then the first heating medium is divided into two branches:
one branch enters the heat storage module through a pipeline and stores heat in the heat storage module, and then returns to the heat exchange device of the heat source to complete a cycle;
the other branch enters the main supply/return pipe through a pipeline and then is divided into two branches:
one branch pipe flows back to the main supply/return pipe through a pipeline and flows back to the heat exchange equipment of the heat source to complete a cycle;
the other branch passes through the heat user through a pipeline and releases heat, and then flows back to the main supply/return pipe and flows back to the heat exchange equipment of the heat source to complete a cycle;
the refrigerant enters the heat consumer through the pipeline and absorbs the heat of the first heating medium, and then the refrigerant is supplied to the consumer and meets the demand of the consumer.
Further, the heat source comprises a dead steam condenser, a boiler, a steam turbine and a peak heater; steam generated by the boiler enters the steam turbine and works to generate power, exhaust steam generated by the steam turbine enters the exhaust steam condenser and is condensed in the exhaust steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler; the steam extracted from the steam turbine enters a spike heater and transfers heat to a first heating medium and then enters the boiler;
the first heating medium enters the peak heater and exchanges heat before entering the supply/return main pipe.
Furthermore, the hot users comprise domestic hot water hot users, and the second refrigerant enters the domestic hot water hot users through a pipeline and enters the water end equipment after being heated.
Further, the system also comprises a heat pump unit and a cooling tower;
the heat pump unit comprises an evaporator, a compressor, a first condenser, a second condenser and a throttle valve; the evaporator, the compressor, the first condenser, the second condenser and the throttle valve are connected in series to form a circulation passage of refrigerant;
the hot users comprise hot living water users and cold/hot living water users;
the second refrigerant is divided into two paths: one branch enters a domestic hot water hot user through a pipeline, is heated and then enters water end equipment; the other branch enters the second condenser, is heated and then enters the domestic hot water heating user, and enters the water end equipment after being heated;
natural refrigerant circulates between the cooling tower and the first condenser and takes away heat of the first condenser;
the first refrigerant circulates between the cold/hot user and the evaporator, the evaporator is used for cooling the first refrigerant, and the first refrigerant provides cold energy for the cold/hot user.
The invention also provides a centralized heat storage type heat supply system, which comprises a heat source, a heat storage/release unit and a heat user;
a circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat storage/release unit comprises a heat storage module, a supply/return main pipe, a plurality of pipelines and valves; the first heating medium exchanges heat with the heat exchange equipment of the heat source, obtains heat, then enters the supply/return main pipe, and then is divided into two branches:
one branch pipe flows back to the main supply/return pipe through a pipeline;
the other branch passes through the hot user and releases heat, and then flows back to the main supply/return pipe;
a first heating medium flowing back from a water supply and return main pipe enters the heat storage module, extracts heat stored in the heat storage module, and then enters heat exchange equipment of the heat source through a pipeline to complete a cycle;
the second refrigerant enters the heat consumer through a pipeline and absorbs the heat of the first heating medium, and then the second refrigerant is supplied to the consumer and meets the demand of the consumer.
Further, the heat source comprises a dead steam condenser, a boiler, a steam turbine and a peak heater; steam generated by the boiler enters the steam turbine and works to generate power, exhaust steam generated by the steam turbine enters the exhaust steam condenser and is condensed in the exhaust steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler; the steam extracted from the steam turbine enters a spike heater and transfers heat to a first heating medium and then enters the boiler;
the first heating medium enters the peak heater and exchanges heat before entering the supply/return main pipe.
Further, the system also comprises a heat pump unit and a cooling tower;
the heat pump unit comprises an evaporator, a compressor, a first condenser, a second condenser and a throttle valve; the evaporator, the compressor, the first condenser, the second condenser and the throttle valve are connected in series to form a circulation passage of refrigerant;
the hot users comprise hot domestic water users, cold/hot users and hot heating users;
the second refrigerant is divided into two paths: one branch enters a domestic hot water hot user through a pipeline, is heated and then enters water end equipment; the other branch enters the second condenser, is heated and then enters the domestic hot water heating user, and enters the water end equipment after being heated;
natural refrigerant circulates between the cooling tower and the first condenser and takes away heat of the first condenser;
a first refrigerant circulates between the cold/hot user and the evaporator, the evaporator is used for cooling the first refrigerant, and the first refrigerant provides cold energy for the cold/hot user;
the branch flowing from the supply/return main trunk pipe through the hot user is divided into two branches:
one branch pipe flows through the domestic hot water heating user through a pipeline and releases heat, and then flows back to the supply/return main pipe;
the other branch passes through the heating heat consumer through a pipeline and releases heat, then enters the evaporator through the pipeline, is cooled and then flows back to the main supply/return pipe through the pipeline;
and a second heating medium enters the first condenser, is heated and then enters the heating users through the pipeline to release heat, then enters the cold/hot users to further release heat, then flows out, and then returns to the heating users partially, and enters the first condenser through the pipeline to complete a cycle.
Further, the heat storage module is an underground pipe or a heat storage water body.
The present invention also provides a control method of the system provided according to the above invention, the control method comprising the steps of:
s1: arranging sensors at key parts in the system, wherein the sensors are one or more of temperature, flow rate, pressure and water quality monitoring sensors;
s2: and collecting the numerical value of the sensor, and controlling thermal and physical parameters of various liquids in the system according to the numerical value, thereby realizing the operation of the system under various working conditions.
Further, when the system is in a working condition of supplying domestic hot water in a non-heating season, the following control substeps are implemented:
SS 1: when the sensor detects that the temperature of the water in the line (L9) to the supply/return main pipe (202b) is higher than a set value, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe (202b), the heat storage module (201) and the supply/return main pipe (202a) to form a layered and stepped temperature heat storage mode;
SS 2: when the sensor detects that the temperature of the water in the line (L7) flowing from the supply/return main pipe (202a) is higher than a set value, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe (202b), the exhaust steam condenser (101), the heat storage module (201) and the supply/return main pipe (202a) to form a heat release mode.
The centralized heat storage type heat supply system can realize cross-season heat storage and utilization through the buried pipe or the heat storage water body, has different operation modes in different seasons, and can realize life hot water supply, summer cooling and winter heating in the whole year; the seasonal heat storage of the system can greatly improve the energy utilization rate of the heat source and further exert the waste heat value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are needed in the embodiments or the prior art descriptions will be briefly described below.
FIG. 1 is an embodiment of a concentrated heat storage heat supply system according to a first aspect of the present invention;
FIG. 2 is a second embodiment of a concentrated heat storage heat supply system according to the present invention;
FIG. 3 is a third embodiment of a concentrated heat storage heat supply system according to the present invention;
icon: 101-a dead steam condenser; 102-a boiler; 103-a steam turbine; 104-spike heaters; 201-a heat storage module; 202a/202 b-supply/return main trunk; 301-hot users of domestic hot water; 302-cold/warm user; 303-heating users; 401-an evaporator; 402-a compressor; 403-a first condenser; 404-a second condenser; 405-a throttle valve; 500-a cooling tower; L1-L24-pipeline; V1-V11-valve; P1-Water Pump.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are provided solely for a better understanding of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the patented embodiments of the invention without any inventive step, are within the scope of protection of the invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second," if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The invention discloses a concentrated heat storage type heat supply system, which comprises: heat source, heat accumulation/release unit, heat consumer.
A circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat accumulation/release unit includes a heat accumulation module, supply/ return trunk pipes 202a, 202b, a plurality of pipes, and valves V1 to V10.
The heat storage/release unit in the system in the embodiment operates in a heat storage mode, is particularly suitable for spring, summer and autumn, and can realize seasonal heat storage and provide domestic hot water for users.
As shown in fig. 1, valve V7 is closed and valves V1, V2, V3, V4, V5, V6, V8, V9, V10, V11 are open.
The first heating medium exchanges heat with the heat exchange equipment of the heat source and obtains heat, and then the first heating medium is divided into two branches:
one of the branches L4 enters the thermal storage module 201 and stores heat in the thermal storage module 201, and then returns to the heat exchange device of the heat source and completes one cycle;
the other branch L1, L6 enters the supply/return trunk 202a and then branches into two branches:
one of the branches L8 flows back to the supply/return main pipe 202b and back to the heat exchange device of the heat source and completes one cycle;
the other branch L12 flows through the hot user and releases heat, then flows back to the supply/return main pipe 202b and back to the heat exchange device of the heat source and completes a cycle.
The refrigerant enters the heat consumer through a pipeline and absorbs the heat of the first heating medium, and then the refrigerant is supplied to the consumer and meets the demand of the consumer.
In particular, the heat source is particularly suitable for industrial waste heat sources such as power plants and the like. The heat source comprises a dead steam condenser 101, a boiler 102, a steam turbine 103 and a spike heater 104; steam generated by the boiler enters the steam turbine 103 and works to generate power, dead steam generated by the steam turbine 103 enters the dead steam condenser 101 and is condensed in the dead steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler 102; steam extracted from turbine 103 enters spike heater 104 and transfers heat to the first heating medium, which then enters boiler 102.
The first heating medium enters the spike heater 104 and exchanges heat before entering the supply/return main pipe 202 a.
The hot users comprise domestic hot water hot users 301, and the second refrigerant enters the domestic hot water hot users 301 through pipelines L14 and L15 and enters water end equipment after being heated.
The heat storage module is specifically a buried pipe or a heat storage water body.
Specifically, the first heating medium absorbing the waste heat of the dead steam is divided into two paths from a first water outlet of the dead steam condenser 101: one path enters the peak heater 104 through the pipeline L1 and the third water inlet, can continuously absorb steam heat in the peak heater to raise the temperature, then enters the water supply/return main pipe 202a through the third water outlet and the pipeline L6, the other path enters the buried pipe through the pipeline L3, exchanges heat with soil in the buried pipe, stores waste heat in the exhaust steam in the soil, then joins the first heating medium of the water return main pipe through the pipeline L3, enters the exhaust steam condenser 101 through the first water inlet, and enters the next heat storage cycle.
The outlet of the water supply/return main pipe 202a is divided into two branches, one branch is communicated with the water supply/return main pipe 202b through a pipeline L8, the other branch enters the domestic hot water user 301 through a pipeline L12, heat exchange is carried out between the branch and a second refrigerant in a heat exchanger of the domestic hot water user 301, a first heat medium after heat exchange enters the water supply/return main pipe 202b through a pipeline L9, is converged with a first heat medium at the water outlet of the buried pipe 201, enters an exhaust steam condenser through a pipeline L2 and enters the next domestic hot water heating cycle.
It is understood that the water supply/return main pipes 202a, 202b may be used to store heat for a short period of time to meet the maximum demand of the user, since the supply of domestic hot water has great volatility at different periods of time.
The second refrigerant enters the domestic hot water user 301 through pipelines L14 and L15, a water pump P1 is arranged on the pipeline L15, the second refrigerant exchanges heat with the first refrigerant in a heat exchanger of the domestic hot water user 301, the temperature of the second refrigerant is raised, the second refrigerant is conveyed to a water end device from a fifth water outlet of the domestic hot water user 301 through the pipeline L16, an open passage of the second refrigerant is formed, and domestic hot water supply of the user is achieved.
Specifically, the domestic hot water heat exchanger is a dividing wall type heat exchanger.
Second embodiment
The embodiment discloses a concentrated heat storage type heat supply system, which comprises a heat source, a heat storage/release unit and a heat user.
A circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat accumulation/release unit includes a heat accumulation module 201, supply/ return trunk pipes 202a, 202b, a plurality of pipes, and valves V1 to V10.
The first heating medium exchanges heat with the heat exchange equipment of the heat source and obtains heat, and then the first heating medium is divided into two branches:
one of the branches L4 enters the thermal storage module 201 and stores heat in the thermal storage module 201, and then returns to the heat exchange device of the heat source and completes one cycle;
the other branch L1, L6 enters the supply/return trunk 202a and then branches into two branches:
one of the branches L8 flows back to the supply/return main pipe 202b and back to the heat exchange device of the heat source and completes one cycle;
the other branch L12 flows through the hot user and releases heat, then flows back to the supply/return main pipe 202b and back to the heat exchange device of the heat source and completes a cycle.
The refrigerant enters the heat consumer through a pipeline and absorbs the heat of the first heating medium, and then the refrigerant is supplied to the consumer and meets the demand of the consumer.
In particular, the heat source is particularly suitable for industrial waste heat sources such as power plants and the like. The heat source comprises a dead steam condenser 101, a boiler 102, a steam turbine 103 and a spike heater 104; steam generated by the boiler enters the steam turbine 103 and works to generate power, dead steam generated by the steam turbine 103 enters the dead steam condenser 101 and is condensed in the dead steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler 102; steam extracted from turbine 103 enters spike heater 104 and transfers heat to the first heating medium, which then enters boiler 102.
The first heating medium enters the spike heater 104 and exchanges heat before entering the supply/return main pipe 202 a.
Specifically, the first heating medium absorbing the waste heat of the dead steam is divided into two paths from a first water outlet of the dead steam condenser 101: one path enters the peak heater 104 through the pipeline L1 and the third water inlet, can continuously absorb steam heat in the peak heater to raise the temperature, then enters the water supply/return main pipe 202a through the third water outlet and the pipeline L6, the other path enters the buried pipe through the pipeline L3, exchanges heat with soil in the buried pipe, stores waste heat in the exhaust steam in the soil, then joins the first heating medium of the water return main pipe through the pipeline L3, enters the exhaust steam condenser 101 through the first water inlet, and enters the next heat storage cycle.
Unlike the first embodiment, the second embodiment can supply cold while seasonal heat storage and domestic hot water to the user are realized. This embodiment is particularly useful in summer. The system in this embodiment further includes a heat pump unit and a cooling tower 500.
As shown in fig. 2, valves V7, V11 are closed, valves V1, V2, V3, V4, V5, V6, V8, V9, V10 are open.
The heat pump unit includes an evaporator 401, a compressor 402, a first condenser 403, a second condenser 404, a throttle valve 405; the evaporator 401, the compressor 402, the first condenser 403, the second condenser 404 and the throttle valve 405 are connected in series to form a circulation path of the refrigerant.
The hot users include a domestic hot water hot user 301 and a cold/hot user 302 having both a demand for cold and a demand for hot.
The second refrigerant is divided into two paths: one branch enters a domestic hot water heating user 301 through a pipeline L15 and enters water end equipment after being heated; the other branch enters the second condenser 404, is heated and then enters the domestic hot water heating user 301, and enters the water end equipment after being heated.
A natural refrigerant circulates between the cooling tower 500 and the first condenser 403 and takes heat of the first condenser 403.
A first refrigerant circulates between the cold/hot user 302 and the evaporator 401, and the evaporator 401 is used for cooling the first refrigerant, and the first refrigerant provides cold energy for the cold/hot user 302.
Specifically, the valve V11 is closed, the second refrigerant enters the second condenser 404 through the pipeline L14, the heat of the refrigerant is absorbed in the second condenser, after the second refrigerant is initially heated, the second refrigerant enters the pipeline L15 through the twelfth water outlet of the second condenser, and the power is provided by the water pump P1, so that the second refrigerant is delivered to the domestic hot water user 301;
the eighth water inlet of the evaporator 401 is communicated with the ninth water outlet of the cold consumer 302 through a pipeline L19, and the eighth water outlet of the evaporator 401 is communicated with the ninth water inlet of the cold consumer 302 through a pipeline L20' to form a first refrigerant circulation loop for providing cold energy to the cold consumer;
the tenth water inlet of the first condenser 403 is communicated with the water outlet of the cooling tower 500 through a pipeline L25, and the tenth water outlet of the first condenser 403 is communicated with the water inlet of the cooling tower 500 through a pipeline L24, so as to form a natural refrigerant circulation loop for transferring heat to the external atmosphere.
Third embodiment
Unlike the first and second embodiments, the heat storage unit of the system realizes heat release across seasons, provides hot water for life, provides heat for users, and can simultaneously provide cold. This embodiment is particularly suitable for use in the heating season.
As shown in fig. 3, valves V1, V3, V11 are closed, valves V2, V3, V4, V5, V6, V7, V8, V9, V10 are open.
The system in this embodiment includes a heat source, an accumulation/release unit, and a heat consumer.
A circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat accumulation/release unit comprises a heat accumulation module, a supply/return main trunk pipe 202a and 202b, a plurality of pipelines and valves V1-V10; the first heating medium exchanges heat with the heat exchange device of the heat source and obtains heat, and then enters the supply/return main pipe 202a, and then is divided into two branches:
one of the branches L8 flows back to the supply/return trunk 202 b;
the other branch passes through the hot user and releases heat, and then flows back to the supply/return main pipe 202 b;
the first heating medium flowing back from the water supply and return main pipe 202b enters the heat storage module and extracts the heat stored therein and then enters the heat exchange device of the heat source through a pipeline and completes a cycle.
The second refrigerant enters the heat consumer through a pipeline and absorbs the heat of the first heating medium, and then the second refrigerant is supplied to the consumer and meets the demand of the consumer.
The heat source comprises a dead steam condenser 101, a boiler 102, a steam turbine 103 and a spike heater 104; steam generated by the boiler enters the steam turbine 103 and works to generate power, dead steam generated by the steam turbine 103 enters the dead steam condenser 101 and is condensed in the dead steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler 102; the steam extracted from the steam turbine 103 enters the spike heater 104 and transfers heat to the first heating medium, and then enters the boiler 102;
the first heating medium enters the spike heater 104 and exchanges heat before entering the supply/return main pipe 202 a.
The system also includes a heat pump unit, a cooling tower 500.
The heat pump unit includes an evaporator 401, a compressor 402, a first condenser 403, a second condenser 404, a throttle valve 405; the evaporator 401, the compressor 402, the first condenser 403, the second condenser 404 and the throttle valve 405 are connected in series to form a circulation passage of refrigerant;
the hot users comprise a domestic hot water hot user 301, a cold/hot user 302 and a heating hot user 303;
the second refrigerant is divided into two paths: one branch enters a domestic hot water heating user 301 through a pipeline L15 and enters water end equipment after being heated; the other branch enters the second condenser 404, is heated and then enters the domestic hot water heating user 301, and enters the water end equipment after being heated.
A natural refrigerant circulates between the cooling tower 500 and the first condenser 403 and takes heat of the first condenser 403.
A first refrigerant circulates between the cold/hot user 302 and the evaporator 401, and the evaporator 401 is used for cooling the first refrigerant, and the first refrigerant provides cold energy for the cold/hot user 302.
The branch from the supply/return trunk 202a through the hot user is divided into two branches:
one of the branches L12 flows through the domestic hot water user 301 and releases heat, and then flows back to the supply/return trunk pipe 202 b;
the other branch L17 passes through the heating user 303 to release heat, then enters the evaporator 401 through the line L18, and flows back to the supply/return main trunk 202b through the line L20 after being cooled down;
the second heating medium enters the first condenser 403 and is heated and then enters the heating and heating user 303 through a line L21 and releases heat, then enters the cold/hot user 302 and further releases heat, then flows out, and then returns a part to the heating and heating user 303, and a part enters the first condenser 403 through a line L23' and completes one cycle.
Specifically, the heat storage module 201 is a buried pipe or a heat storage water body.
Specifically, the low-temperature first heating medium in the supply/return water main pipe 202b enters the buried pipe 201 through the pipeline L3, the flow direction of the medium in the buried pipe 201 is opposite to that of the first and second embodiments, in the buried pipe, the low-temperature first heating medium exchanges heat with deep soil, so that the heat stored in the soil in other seasons is released, and therefore, the heat storage unit completes the heat release cycle;
after the first heat medium is subjected to preliminary temperature rise, the first heat medium enters the dead steam condenser 101 through a pipeline L5, indirect heat exchange is carried out on the first heat medium and the dead steam in the dead steam condenser, after the temperature of the first heat medium is further raised, the first heat medium enters the peak heater 104 from a first water outlet of the dead steam condenser through a pipeline L2, heat exchange is carried out on the first heat medium and steam from the steam turbine 103 in the peak heater 104, after the temperature of the first heat medium is raised again, the high-temperature first heat medium enters the water supply main pipe 202 from a third water outlet of the peak heater 104 through a pipeline L6;
the pipeline L7 at the water outlet of the water supply main pipe 202 is divided into two paths:
one path is communicated with a water supply/return main pipe 202b through a pipeline L8, a water outlet of the water supply/return main pipe 202b is communicated with a first water inlet of the dead steam condenser 101 through a pipeline L2, and a valve V5 is arranged on a pipeline L2;
the other branch is divided into two branches: a first branch and a second branch;
the first branch is communicated with a fourth water inlet of a domestic hot water user 301 through a pipeline L12, the first heating medium releases heat in a heat exchanger of the domestic hot water user 301, and then is communicated with an inlet pipeline L9 of a water supply/return main trunk pipe 202b through a fourth water outlet of the domestic hot water user 301, and a valve V10 is arranged on a communicating pipe; the second branch is communicated with a sixth water inlet of a heating user 303 through a pipeline L17, a first heating medium releases heat in a heat exchanger of the heating user 303, then enters an evaporator 401 of the electric heat pump through a pipeline L18, the temperature of the first heating medium is further reduced in the evaporator 401 of the electric heat pump, a water outlet of the evaporator 401 is converged with a connecting pipeline L13 of a domestic hot water user 301 through a pipeline L20 and is communicated with an inlet of a water supply/return main pipe 202b through a pipeline L9, and an outlet of the water supply/return main pipe 202b is communicated with a first water inlet of the steam exhaust condenser 101 through a pipeline L2 to form a first heating medium circulation passage;
the hot user 303 further comprises a seventh water inlet and a seventh water outlet;
the cold/hot user 302 further comprises an eleventh water inlet and an eleventh water outlet;
the tenth water outlet of the first condenser 403 is communicated with the seventh water inlet of the hot user 303 through a pipeline L21, the seventh water outlet of the hot user 303 is communicated with the eleventh water inlet of the cold/hot user 302 through a pipeline L22, the eleventh water outlet of the cold/hot user 302 is divided into two paths, one path is communicated with the seventh water inlet of the hot user 303 through a pipeline L23, and the other path is communicated with the tenth water inlet of the first condenser through a pipeline L23', so as to form a second heat medium circulation loop, which is used for directly dissipating heat for heating users, thereby realizing heating in the heating season of users.
Fourth embodiment
The present embodiment discloses a control method of a system according to the first to third embodiments, characterized in that: the control method comprises the following steps:
s1: arranging sensors at key parts in the system, wherein the sensors are one or more of temperature, flow rate, pressure and water quality monitoring sensors;
s2: and collecting the numerical value of the sensor, and controlling thermal and physical parameters of various liquids in the system according to the numerical value, thereby realizing the operation of the system under various working conditions. The various working conditions comprise the working condition of domestic hot water supply in non-heating seasons. In order to adapt to the fluctuating demand, the system implements the following control sub-steps in the non-heating season domestic hot water supply working condition:
SS 1: when the sensor detects that the water temperature in line L9 flowing to supply/return main pipe 202b is above a set point, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe 202b, the heat storage module 201 and the supply/return main pipe 202a to form a layered and stepped temperature heat storage mode;
SS 2: when the sensor detects that the water temperature in line L7 flowing from supply/return main pipe 202a is above a set point, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe 202b, the exhaust steam condenser 101, the heat storage module 201 and the supply/return main pipe 202a and forms a heat release mode.
The control method is a multi-parameter control and adjustment method, a plurality of monitoring points of the temperature, the flow rate, the pressure, the water quality and the like of a first heating medium, a second heating medium, a first cooling medium, a second cooling medium and a natural cooling medium are arranged at key points of each part, and the thermal physical parameters of liquid are controlled by utilizing a plurality of monitoring indexes to guide the operation of the whole year and various variable working conditions.
The above embodiments are only used for explaining the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution should not be excluded from the protection scope of the present invention.
Claims (10)
1. An active energy storage type annual supply system of a concentrated heat network, the system comprising: a heat source, a heat storage/release unit, a heat user;
a circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat accumulation/release unit comprises a heat accumulation module (201), a supply/return main pipe (202a, 202b), a plurality of pipelines and valves (V1-V10); the first heating medium exchanges heat with the heat exchange equipment of the heat source and obtains heat, and then the first heating medium is divided into two branches:
one of the branches enters the thermal storage module (201) through a pipe (L4) and stores heat in the thermal storage module (201) and then returns to the heat exchange device of the heat source and completes a cycle;
the other branch enters the supply/return trunk pipe (202a) through a pipeline (L1, L6) and then is divided into two branches:
one branch of the heat exchange tubes flows back to the main supply/return tube (202b) through a pipeline (L8) and flows back to the heat exchange device of the heat source to complete a cycle;
the other branch passes through the heat consumer and releases heat through a pipe (L12), and then flows back to the main supply/return pipe (202b) and flows back to the heat exchange device of the heat source and completes a cycle;
the refrigerant enters the heat consumer through the pipeline and absorbs the heat of the first heating medium, and then the refrigerant is supplied to the consumer and meets the demand of the consumer.
2. The system of claim 1, wherein: the heat source comprises a dead steam condenser (101), a boiler (102), a steam turbine (103) and a peak heater (104); steam generated by the boiler enters the steam turbine (103) and works to generate power, exhaust steam generated by the steam turbine (103) enters the exhaust steam condenser (101) and is condensed in the exhaust steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler (102); the steam extracted from the steam turbine (103) enters the spike heater (104) and transfers heat to a first heating medium and then enters the boiler (102);
the first heating medium enters the spike heater (104) and exchanges heat before entering the supply/return main pipe (202 a).
3. The system of claim 2, wherein: the hot users comprise domestic hot water hot users (301), and the second refrigerant enters the domestic hot water hot users (301) through pipelines (L14, L15) and enters water end equipment after being heated.
4. The system of claim 2, wherein: the system further comprises a heat pump unit, a cooling tower (500);
the heat pump unit comprises an evaporator (401), a compressor (402), a first condenser (403), a second condenser (404) and a throttle valve (405); the evaporator (401), the compressor (402), the first condenser (403), the second condenser (404) and the throttle valve (405) are connected in series to form a circulation passage of refrigerant;
the hot users comprise domestic hot water hot users (301) and cold/hot users (302);
the second refrigerant is divided into two paths: one branch enters a domestic hot water hot user (301) through a pipeline (L15) and enters water end equipment after being heated; the other branch enters the second condenser (404) firstly, is heated and then enters the domestic hot water heating user (301) and enters the water end equipment after being heated;
natural refrigerant circulates between the cooling tower (500) and the first condenser (403) and takes heat of the first condenser (403) away;
a first refrigerant circulates between the cold/hot user (302) and the evaporator (401), the evaporator (401) being arranged to cool the first refrigerant, which first refrigerant provides cooling energy to the cold/hot user (302).
5. An active energy storage type all-year-round supply system of a centralized heat supply network comprises a heat source, an energy storage/release unit and a heat user;
a circulation passage of the first heating medium is formed in the heat accumulation/release unit and is used for accumulating or extracting heat and/or distributing the first heating medium to the heat users; the heat accumulation/release unit comprises a heat accumulation module (201), a supply/return main pipe (202a, 202b), a plurality of pipelines and valves (V1-V10); the first heating medium exchanges heat with the heat exchange device of the heat source and obtains heat, and then enters the supply/return main pipe (202a), and then is divided into two branches:
one branch of the branch flows back to the main supply/return pipe (202b) through a pipeline (L8);
the other branch passes through the hot user and releases heat, and then flows back to the main supply/return pipe (202 b);
a first heating medium flowing back from a water supply and return main pipe (202b) enters the heat storage module (201) and extracts heat stored in the heat storage module and then enters heat exchange equipment of the heat source through a pipeline to complete a cycle;
the second refrigerant enters the heat consumer through a pipeline and absorbs the heat of the first heating medium, and then the second refrigerant is supplied to the consumer and meets the demand of the consumer.
6. The system of claim 5, wherein: the heat source comprises a dead steam condenser (101), a boiler (102), a steam turbine (103) and a peak heater (104); steam generated by the boiler enters the steam turbine (103) and works to generate power, exhaust steam generated by the steam turbine (103) enters the exhaust steam condenser (101) and is condensed in the exhaust steam condenser, heat is transferred to a first heating medium, and then the first heating medium returns to the boiler (102); the steam extracted from the steam turbine (103) enters a spike heater (104) and transfers heat to a first heating medium and then enters the boiler (102);
the first heating medium enters the spike heater (104) and exchanges heat before entering the supply/return main pipe (202 a).
7. The system of claim 6, wherein: the system further comprises a heat pump unit, a cooling tower (500);
the heat pump unit comprises an evaporator (401), a compressor (402), a first condenser (403), a second condenser (404) and a throttle valve (405); the evaporator (401), the compressor (402),
A first condenser (403), a second condenser (404) and a throttle valve (405) are connected in series to form a circulation passage of refrigerant;
the hot users comprise a domestic hot water hot user (301), a cold/hot user (302) and a heating hot user (303);
the second refrigerant is divided into two paths: one branch enters a domestic hot water hot user (301) through a pipeline (L15) and enters water end equipment after being heated; the other branch enters the second condenser (404) firstly, is heated and then enters the domestic hot water heating user (301) and enters the water end equipment after being heated;
natural refrigerant circulates between the cooling tower (500) and the first condenser (403) and takes heat of the first condenser (403) away;
a first refrigerant circulates between the cold/hot user (302) and the evaporator (401), the evaporator (401) is used for cooling the first refrigerant, and the first refrigerant provides cold energy for the cold/hot user (302);
the branch flowing from the supply/return trunk (202a) through the hot user is divided into two branches:
one branch of the hot water flows through the domestic hot water user (301) through a pipeline (L12) and releases heat, and then flows back to the supply/return main trunk pipe (202 b);
the other branch passes through the heating user (303) through a pipeline (L17) and releases heat, then enters the evaporator (401) through a pipeline (L18) and flows back to the supply/return main trunk pipe (202b) through a pipeline (L20) after being cooled;
the second heating medium enters the first condenser (403) and is heated, then enters the heating user (303) through the pipeline (L21) and releases heat, then enters the cold/hot user (302) and further releases heat, then flows out, then returns to the heating user (303), and enters the first condenser (403) through the pipeline (L23') and completes a cycle.
8. The system according to claim 1 or 5, characterized in that: the heat storage module is a buried pipe or a heat storage water body.
9. The control method of the system according to claim 1 or 5, characterized in that: the control method comprises the following steps:
s1: arranging sensors at key parts in the system, wherein the sensors are one or more of temperature, flow rate, pressure and water quality monitoring sensors;
s2: and collecting the numerical value of the sensor, and controlling thermal and physical parameters of various liquids in the system according to the numerical value, thereby realizing the operation of the system under various working conditions.
10. The control method according to claim 9, characterized in that: when the system is in a working condition of supplying domestic hot water in non-heating seasons, the following control substeps are implemented:
SS 1: when the sensor detects that the temperature of the water in the line (L9) to the supply/return main pipe (202b) is higher than a set value, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe (202b), the heat storage module (201) and the supply/return main pipe (202a) to form a layered and stepped temperature heat storage mode;
SS 2: when the sensor detects that the temperature of the water in the line (L7) flowing from the supply/return main pipe (202a) is higher than a set value, the system causes the first heating medium to form a circulation path as follows: the first heating medium sequentially enters the supply/return main pipe (202b), the exhaust steam condenser (101), the heat storage module (201) and the supply/return main pipe (202a) to form a heat release mode.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022255792A1 (en) * | 2021-06-01 | 2022-12-08 | 한국해양과학기술원 | Complex system using seawater temperature difference power generation and heat pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100282434A1 (en) * | 2008-03-31 | 2010-11-11 | Mitsubishi Electric Corporation | Air conditioning and hot water supply complex system |
| KR20130135022A (en) * | 2012-05-30 | 2013-12-10 | 오텍캐리어 주식회사 | Hybrid heat pump boiler system |
| US20140260357A1 (en) * | 2013-03-15 | 2014-09-18 | Energy Recovery Systems Inc. | Energy exchange system and method |
| CN106123086A (en) * | 2016-07-06 | 2016-11-16 | 华北电力大学 | Cogeneration units and peak regulating method thereof with regenerative apparatus |
| CN106765455A (en) * | 2016-11-28 | 2017-05-31 | 中能服能源科技股份有限公司 | A kind of energy-saving heat storage and heat supply system |
| CN206572801U (en) * | 2017-01-06 | 2017-10-20 | 华北电力大学 | It is a kind of to solve the cold-hot combined supply system that renewable energy power generation abandons energy problem |
| CN107300203A (en) * | 2017-07-05 | 2017-10-27 | 燕山大学 | Utilize the heat pump heat distribution system and method for across the season storage power taking factory exhaust steam residual heat of soil |
| CN210624986U (en) * | 2019-09-02 | 2020-05-26 | 珠海冰恬环境科技有限公司 | Comprehensive cold and heat source supply optimization energy-saving system |
| CN212902091U (en) * | 2020-06-15 | 2021-04-06 | 云能科技有限公司 | Active energy storage type all-year supply system of centralized heat supply network |
-
2020
- 2020-06-15 CN CN202010542778.0A patent/CN111692777B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100282434A1 (en) * | 2008-03-31 | 2010-11-11 | Mitsubishi Electric Corporation | Air conditioning and hot water supply complex system |
| KR20130135022A (en) * | 2012-05-30 | 2013-12-10 | 오텍캐리어 주식회사 | Hybrid heat pump boiler system |
| US20140260357A1 (en) * | 2013-03-15 | 2014-09-18 | Energy Recovery Systems Inc. | Energy exchange system and method |
| CN106123086A (en) * | 2016-07-06 | 2016-11-16 | 华北电力大学 | Cogeneration units and peak regulating method thereof with regenerative apparatus |
| CN106765455A (en) * | 2016-11-28 | 2017-05-31 | 中能服能源科技股份有限公司 | A kind of energy-saving heat storage and heat supply system |
| CN206572801U (en) * | 2017-01-06 | 2017-10-20 | 华北电力大学 | It is a kind of to solve the cold-hot combined supply system that renewable energy power generation abandons energy problem |
| CN107300203A (en) * | 2017-07-05 | 2017-10-27 | 燕山大学 | Utilize the heat pump heat distribution system and method for across the season storage power taking factory exhaust steam residual heat of soil |
| CN210624986U (en) * | 2019-09-02 | 2020-05-26 | 珠海冰恬环境科技有限公司 | Comprehensive cold and heat source supply optimization energy-saving system |
| CN212902091U (en) * | 2020-06-15 | 2021-04-06 | 云能科技有限公司 | Active energy storage type all-year supply system of centralized heat supply network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022255792A1 (en) * | 2021-06-01 | 2022-12-08 | 한국해양과학기술원 | Complex system using seawater temperature difference power generation and heat pump |
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Effective date of registration: 20240328 Address after: 041000 middle section of Hefen Road, Linfen economic and Technological Development Zone, Linfen City, Shanxi Province Patentee after: SHANXI SANSHINE ENERGY CO.,LTD. Country or region after: China Address before: Room 241, building C, small and medium sized Enterprise Business Incubation Park, 999 Huining Road, Yining Park, Horgos Economic Development Zone, Yili Kazak Autonomous Prefecture, 835000 Xinjiang Uygur Autonomous Region Patentee before: CLOUD ENERGY CONSERVATION Co.,Ltd. Country or region before: China |