CN107387259B - Heating system, refrigerating system and combined cooling heating and power system - Google Patents
Heating system, refrigerating system and combined cooling heating and power system Download PDFInfo
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- CN107387259B CN107387259B CN201710764143.3A CN201710764143A CN107387259B CN 107387259 B CN107387259 B CN 107387259B CN 201710764143 A CN201710764143 A CN 201710764143A CN 107387259 B CN107387259 B CN 107387259B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/045—Controlling
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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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
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- 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]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A combined cooling, heating and power supply system comprises a gas generator-flue gas hot water direct combustion engine system, a gas direct combustion engine (201), an electric refrigeration centrifuge (202), a boiler heating system, a cold and warm water supply main pipe (1), a cold and warm water return main pipe (2), a domestic hot water supply main pipe (3), a domestic hot water return main pipe (4) and a control system; the unit smoke exhaust of the gas direct-fired machine (201) is supplied to the gas generator-smoke hot water direct-fired machine system, and the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to the electric refrigeration centrifuge (202). The combined cooling, heating and power system has the advantages of reasonable pipeline design, simple and convenient pipeline, less equipment, small occupied area, small energy loss in the whole control process and high economic benefit.
Description
Technical Field
The invention belongs to the field of energy utilization, and particularly relates to a system capable of simultaneously providing cold and heat.
Background
With the enhancement of people's environmental awareness, the demand of most cities for natural gas is obviously increased. Compared with coal, natural gas has less environmental pollution and low cost, and the economic benefit of the natural gas as civil fuel is larger than that of industrial fuel. Meanwhile, people pay more and more attention to quality of life level, in cold winter, especially in north, family heat supply is a necessity for most families, and in hot summer, family heat supply is also very high in demand. In the prior art, more natural gas is utilized and simultaneously cooling and heating can be carried out for a user, for example, a patent document CN203742831U discloses a combined cooling, heating and heating system, the patent adopts a waste heat direct-fired unit to utilize waste heat of an engine to carry out cooling or heating, the energy utilization rate is higher, but the problems also exist, for example, a radiating water tank is adopted to carry out heat radiation treatment on high Wen Gangtao water in the patent, the energy loss is high, the temperature of high Wen Gangtao water backwater of the engine is difficult to be effectively controlled, and meanwhile, equipment pipelines in the whole pipeline system are more numerous and occupy more space. Therefore, the designed combined cooling heating and power system has a simple pipeline and high energy utilization rate, and has a wide market prospect.
Disclosure of Invention
The invention aims to overcome the defects and the shortcomings in the background art, and provides a heating system which is simple in pipeline and high in energy utilization rate and can be used for combined cooling, heating and power, a refrigerating system which can be used for combined cooling, heating and power and a combined cooling, heating and power system. In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a heating system capable of being used for combined cooling, heating and power comprises a gas generator-flue gas hot water direct-combustion engine system, a gas direct-combustion engine, a boiler heating system, a cold and warm water supply main pipe, a cold and warm water return main pipe, a domestic hot water supply main pipe, a domestic hot water return main pipe and a control system;
the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct-fired machine system in preference to the gas direct-fired machine and in preference to the boiler heating system, when the heating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the gas direct-fired machine is operated, and when the heating capacity of the gas generator-flue gas hot water direct-fired machine system and the gas direct-fired machine system cannot meet the actual demand, the boiler heating system is operated;
The unit smoke exhaust of the gas direct-fired machine is supplied to the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine and the boiler heat supply system are all connected with the cold and warm water supply main pipe and the cold and warm water return main pipe, and the boiler heat supply system also provides domestic hot water and is connected with the domestic hot water supply main pipe and the domestic hot water return main pipe.
A refrigerating system capable of being used for cold and hot electricity triple supply comprises a gas generator-flue gas hot water direct-fired machine system, a gas direct-fired machine, an electric refrigerating centrifuge, a cold and warm water supply main pipe, a cold and warm water return main pipe, a domestic hot water supply main pipe, a domestic hot water return main pipe and a control system;
the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct-fired machine system over the electric refrigeration centrifugal machine and over the gas direct-fired machine, when the refrigerating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the electric refrigeration centrifugal machine is operated, and when the refrigerating capacity of the gas generator-flue gas hot water direct-fired machine system and the electric refrigeration centrifugal machine cannot meet the actual demand, the gas direct-fired machine is operated;
The unit smoke exhaust of the gas direct-fired machine is supplied to the gas generator-smoke hot water direct-fired machine system, the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to the electric refrigeration centrifugal machine, and the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine and the electric refrigeration centrifugal machine are connected with the cold and warm water supply main pipe and the cold and warm water return main pipe.
A system capable of being used for combined cooling, heating and power comprises a gas generator-flue gas hot water direct combustion engine system, a gas direct combustion engine, an electric refrigeration centrifuge, a boiler heating system, a cold and warm water supply main pipe, a cold and warm water return main pipe, a domestic hot water supply main pipe, a domestic hot water return main pipe and a control system;
when the heating quantity of the gas generator-flue gas hot water direct-combustion engine system cannot meet actual requirements, the gas direct-combustion engine is operated, and when the heating quantity of the gas generator-flue gas hot water direct-combustion engine system and the gas direct-combustion engine is not met, the boiler heating system is operated; when the cooling, heating and power triple supply refrigeration is carried out, the control system is configured into a priority operation level that the gas generator-flue gas hot water direct-combustion engine system is higher than an electric refrigeration centrifugal machine and is higher than the gas direct-combustion engine, when the refrigeration capacity of the gas generator-flue gas hot water direct-combustion engine system cannot meet the actual demand, the electric refrigeration centrifugal machine is operated, and when the refrigeration capacity of the gas generator-flue gas hot water direct-combustion engine system and the electric refrigeration centrifugal machine cannot meet the actual demand, the gas direct-combustion engine is operated;
The unit smoke exhaust of the gas direct-fired machine is supplied to the gas generator-smoke hot water direct-fired machine system, the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to the electric refrigeration centrifugal machine, the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine, the electric refrigeration centrifugal machine and the boiler heat supply system are all connected with the cold and warm water supply main pipe and the cold and warm water return main pipe, and the boiler heat supply system continuously supplies domestic hot water and is connected with the domestic hot water supply main pipe and the domestic hot water return main pipe.
In the above invention, preferably, the gas generator-flue gas hot water direct-fired machine system comprises a gas generator, a heat supply heat exchanger and a flue gas hot water direct-fired machine system, wherein the gas generator is communicated with the flue gas hot water direct-fired machine system through a flue gas pipe, a first branch of a cylinder liner water outlet pipe of the gas generator is communicated with a heat exchange water inlet pipe of the heat supply heat exchanger, a second branch of the cylinder liner water outlet pipe of the gas generator is communicated with a high temperature water inlet pipe of the flue gas hot water direct-fired machine system, a heat exchange water return pipe of the heat supply heat exchanger is communicated with a cylinder liner water return pipe of the flue gas hot water direct-fired machine system, a cold and warm water supply pipe and a cold and warm water return pipe are also connected to the heat supply heat exchanger and the flue gas hot water direct-fired machine system, the cold and warm water supply pipe is connected with a cold and warm water supply main pipe, and the cold and warm water return pipe is connected.
In the above invention, preferably, a first-stage temperature compensating pipe is arranged between the cylinder liner water outlet pipe and the cylinder liner water return pipe, a cylinder liner water return heat exchanger is arranged on the cylinder liner water return pipe, and the first-stage temperature compensating pipe is matched with the cylinder liner water return heat exchanger to control the cylinder liner water return temperature in the cylinder liner water return pipe to be 70-80 ℃.
In the above invention, preferably, the cylinder liner water return pipe is provided with a first temperature sensor, the first temperature sensor is located at the upstream of the junction of the cylinder liner water return pipe and the first-stage temperature compensating pipe, and an electric control three-way valve for controlling the flow of the temperature compensating water in the first-stage temperature compensating pipe according to the feedback data of the first temperature sensor is arranged at the junction of the cylinder liner water outlet pipe and the first-stage temperature compensating pipe; the cylinder liner water return pipe is provided with a second temperature sensor, the second temperature sensor is positioned at the downstream of the intersection of the cylinder liner water return pipe and the first-stage temperature supplementing pipe, and an electric regulating three-way valve for controlling the flow direction of cylinder liner water return water in the cylinder liner water return pipe according to feedback data of the second temperature sensor is arranged at the communication part of the cylinder liner water return pipe and the cylinder liner water return water heat exchanger.
In the above invention, preferably, the boiler heating system comprises a boiler, a boiler water outlet pipe, a boiler water return pipe, a domestic hot water supply system and a heating system, wherein a first branch of the boiler water outlet pipe is connected with the domestic hot water supply system, and a second branch of the boiler water outlet pipe is connected with the heating system;
The domestic hot water supply system comprises a pipeline system formed by sequentially connecting a domestic hot water heat source water inlet pipe, a water supply heat exchanger and a domestic hot water heat source water return pipe in series, wherein the water supply heat exchanger is also connected with a client water supply pipe and a client water return pipe, the client water supply pipe is communicated with a domestic hot water supply main pipe, the client water return pipe is communicated with a domestic hot water return main pipe, the water inlet end of the domestic hot water heat source water inlet pipe is communicated with a first branch of a boiler water outlet pipe, and the water outlet end of the domestic hot water heat source water return pipe is connected with the boiler water return pipe;
the heating system comprises a pipeline system formed by sequentially connecting a heating heat source water inlet pipe, a heating heat exchanger and a heating heat source water return pipe in series, wherein the heating heat exchanger is also connected with an air conditioning water supply pipe and an air conditioning water return pipe, the air conditioning water supply pipe is communicated with a cold and warm water supply main pipe, the air conditioning water return pipe is communicated with the cold and warm water return main pipe, the water inlet end of the heating heat source water inlet pipe is communicated with the second branch of the boiler water outlet pipe, and the water outlet end of the heating heat source water return pipe is connected with the boiler water return pipe.
In the above invention, preferably, a third temperature sensor and a fourth temperature sensor are provided on the client water supply pipe and the air-conditioning water supply pipe, and an electric three-way regulating valve for controlling the flow distribution of the high-temperature water in the boiler water outlet pipe according to the feedback data of the third temperature sensor and the fourth temperature sensor is provided at the joint of the boiler water outlet pipe, the domestic hot water supply system and the heating system.
In the above invention, preferably, the boiler heating system further comprises a secondary domestic hot water supply system, the pipe diameter of the secondary domestic hot water supply system is smaller than that of the domestic hot water supply system, the secondary domestic hot water supply system comprises a pipeline system formed by sequentially connecting a secondary domestic hot water heat source water inlet pipe, a secondary water supply heat exchanger and a secondary domestic hot water heat source water return pipe in series, the secondary water supply heat exchanger is connected with a secondary client water supply pipe and a secondary client water return pipe, the water inlet end of the secondary domestic hot water heat source water inlet pipe is communicated with the domestic hot water heat source water inlet pipe, the water outlet end of the secondary domestic hot water heat source water return pipe is connected with the boiler water return pipe, the secondary client water supply pipe is communicated with a domestic hot water supply main, and the secondary client water return pipe is communicated with the domestic hot water return main.
In the above invention, preferably, a side water collector is arranged on the cold-warm water return main pipe, a primary pressurizing system and a secondary pressurizing system are arranged on the cold-warm water supply main pipe, a first flow sensor and a second flow sensor are arranged on the cold-warm water supply main pipe, the first flow sensor is positioned between the primary pressurizing system and the secondary pressurizing system, the second flow sensor is positioned at the downstream of the secondary pressurizing system, and a balance pipe for controlling the flow balance of the cold-warm water supply main pipe between the primary pressurizing system and the secondary pressurizing system and at the downstream of the secondary pressurizing system according to the feedback data of the first flow sensor and the second flow sensor is arranged between the cold-warm water supply main pipe and the side water collector.
Compared with the prior art, the invention has the advantages that:
1. the flue gas hot water direct-fired machine of the combined cooling, heating and power system fully utilizes the high Wen Gangtao water of the gas generator and the high-temperature flue gas generated by other units in the system to selectively supply cold or heat for users, the flue gas or the high-temperature water generated by the system is effectively utilized, the energy utilization rate is high, and meanwhile, the electric energy of the gas generator can be selectively supplied to other units for working, and the electric energy is reasonably utilized.
2. The combined cooling, heating and power system can simultaneously supply cooling, heating and domestic hot water for users, can realize various demands of the users by using the same system, and has high practical application and popularization values.
3. The combined cooling, heating and power system has the advantages of reasonable pipeline design, simple and convenient pipeline, less equipment, small occupied area, small energy loss in the whole control process and high economic benefit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Legend description:
1. cold and warm water supply main pipe; 2. cold-warm water backwater main pipe; 3. a domestic hot water supply main pipe; 4. a domestic hot water return main pipe; 5. a smoke exhaust pipe; 6. a side water collector; 7. a first flow sensor; 8. a second flow sensor; 9. a balance tube; 10. a cooling tower; 11. a water outlet pipe of the cooling tower; 12. a cooling tower return pipe; 13. a water supplementing tank; 14. a natural gas pipeline; 101. a gas-fired power generator; 102. a heat supply heat exchanger; 103. a flue pipe; 104. a cylinder sleeve water outlet pipe; 105. a heat exchange water inlet pipe; 106. a high-temperature water inlet pipe; 107. a heat exchange return pipe; 108. a high-temperature water return pipe; 109. a cylinder liner water return pipe; 110. a cold and warm water supply pipe; 111. a cold and warm water return pipe; 112. a first-stage temperature supplementing pipe; 113. a cylinder sleeve water backwater heat exchanger; 114. a first temperature sensor; 115. a second temperature sensor; 116. a flue gas hot water direct combustion engine; 117. a cylinder liner water heat exchanger; 118. a hot water inlet pipe; 119. a hot water return pipe; 120. a fuel turbo-charging chamber; 121. a fuel cooling liquid inlet pipe; 122. a fuel cooling heat exchanger; 123. a fuel cooling liquid return pipe; 124. a cold water inlet pipe; 125. a cold water return pipe; 126. a second-stage temperature supplementing pipe; 201. a gas direct combustion engine; 202. an electrically refrigerated centrifuge; 204. a water outlet pipe of the gas direct-fired machine; 205. a user cold and warm water supply pipe; 208. a cold and warm water return pipe for users; 209. a return pipe of the gas direct-fired machine; 210. an outlet pipe of the electric refrigeration centrifugal machine; 211. a return pipe of an electric refrigeration centrifuge; 301. a boiler; 302. a boiler water outlet pipe; 303. a boiler return pipe; 304. a domestic hot water heat source water inlet pipe; 305. a domestic hot water source return pipe; 306. a water supply heat exchanger; 307. a client water supply pipe; 308. a client-side return pipe; 309. a heating source water inlet pipe; 310. a heating heat exchanger; 311. a heating source return pipe; 312. an air conditioner water supply pipe; 313. an air conditioner water return pipe; 314. a third temperature sensor; 315. a fourth temperature sensor; 316. a secondary domestic hot water heat source water inlet pipe; 317. a secondary water supply heat exchanger; 318. a secondary domestic hot water heat source return pipe; 319. a secondary client water supply pipe; 320. a secondary client return pipe; 321. and a hot water supplementing pipe.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Examples:
as shown in fig. 1, the heating system capable of being used for combined cooling, heating and power in the embodiment comprises a gas generator-flue gas hot water direct combustion engine system, a gas direct combustion engine 201, a boiler heating system, a cold and warm water supply main pipe 1, a cold and warm water return main pipe 2, a domestic hot water supply main pipe 3, a domestic hot water return main pipe 4 and a control system;
the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct-fired machine system in preference to the gas direct-fired machine 201 and in preference to the boiler heating system, when the heating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the gas direct-fired machine 201 is operated, and when the heating capacity of the gas generator-flue gas hot water direct-fired machine system and the gas direct-fired machine 201 cannot meet the actual demand, the boiler heating system is operated;
The unit smoke exhaust of the gas direct-fired machine 201 is supplied to a gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine 201 and a boiler heating system are connected with a cold and warm water supply main pipe 1 and a cold and warm water return main pipe 2, and the boiler heating system also supplies domestic hot water and is connected with a domestic hot water supply main pipe 3 and a domestic hot water return main pipe 4.
The other refrigeration system capable of being used for combined cooling, heating and power comprises a gas generator-flue gas hot water direct-combustion engine system, a gas direct-combustion engine 201, an electric refrigeration centrifuge 202, a cold and warm water supply main pipe 1, a cold and warm water return main pipe 2, a domestic hot water supply main pipe 3, a domestic hot water return main pipe 4 and a control system;
the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct-fired machine system over the electric refrigeration centrifugal machine 202 and over the gas direct-fired machine 201, when the refrigerating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the electric refrigeration centrifugal machine 202 is operated, and when the refrigerating capacities of the gas generator-flue gas hot water direct-fired machine system and the electric refrigeration centrifugal machine 202 cannot meet the actual demand, the gas direct-fired machine 201 is operated;
The unit smoke exhaust of the gas direct-fired machine 201 is supplied to a gas generator-smoke hot water direct-fired machine system, the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to an electric refrigerating centrifuge 202, and the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine 201 and the electric refrigerating centrifuge 202 are connected with a cold and warm water supply main pipe 1 and a cold and warm water return main pipe 2.
The other system for combined cooling, heating and power comprises a gas generator-flue gas hot water direct combustion engine system, a gas direct combustion engine 201, an electric refrigeration centrifuge 202, a boiler heating system, a cold and warm water supply main pipe 1, a cold and warm water return main pipe 2, a domestic hot water supply main pipe 3, a domestic hot water return main pipe 4 and a control system;
when the combined cooling, heating and power supply heats, the control system is configured to be in priority to the gas generator-flue gas hot water direct-fired machine system and then to be in priority to the priority operation level of the boiler heating system, when the heating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the gas generator-flue gas hot water direct-fired machine system is operated, and when the heating capacity of the gas generator-flue gas hot water direct-fired machine system and the gas direct-fired machine system cannot meet the actual demand, the boiler heating system is operated; when the combined cooling, heating and power supply is used for refrigerating, the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct-fired machine system in preference to the electric refrigerating centrifuge 202 and then in preference to the gas direct-fired machine 201, when the refrigerating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the electric refrigerating centrifuge 202 is operated, and when the refrigerating capacities of the gas generator-flue gas hot water direct-fired machine system and the electric refrigerating centrifuge 202 cannot meet the actual demand, the gas direct-fired machine 201 is operated;
The unit smoke exhaust of the gas direct-fired machine 201 is supplied to a gas generator-smoke hot water direct-fired machine system, electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to an electric refrigeration centrifuge 202, the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine 201, the electric refrigeration centrifuge 202 and a boiler heat supply system are connected with a cold and warm water supply main pipe 1 and a cold and warm water return main pipe 2, and the boiler heat supply system continuously supplies domestic hot water and is connected with the domestic hot water supply main pipe 3 and the domestic hot water return main pipe 4.
In this embodiment, the gas generator-flue gas hot water direct-fired machine system includes a gas generator 101, a heat supply heat exchanger 102 and a flue gas hot water direct-fired machine system, the gas generator 101 is communicated with the flue gas hot water direct-fired machine system through a flue gas pipe 103, a first branch of a cylinder liner water outlet pipe 104 of the gas generator 101 is communicated with a heat exchange water inlet pipe 105 of the heat supply heat exchanger 102, a second branch is communicated with a high-temperature water inlet pipe 106 of the flue gas hot water direct-fired machine system, a heat exchange water return pipe 107 of the heat supply heat exchanger 102 is communicated with a cylinder liner water return pipe 109 of the flue gas hot water direct-fired machine system, a cold and warm water supply pipe 110 and a cold and warm water return pipe 111 are further connected to the heat supply heat exchanger 102 and the flue gas hot water direct-fired machine system, the cold and warm water supply pipe 110 is connected with a cold and warm water return pipe 2. The combined cooling, heating and power system fully utilizes high-temperature flue gas or high Wen Gangtao water generated by the gas generator 101 to selectively supply cold or heat for a user, and the generated flue gas or high-temperature water of the generator is effectively utilized, so that the energy utilization rate is high.
In this embodiment, a first-stage temperature compensating pipe 112 is arranged between the cylinder liner water outlet pipe 104 and the cylinder liner water return pipe 109, a cylinder liner water return heat exchanger 113 is arranged on the cylinder liner water return pipe 109, and the first-stage temperature compensating pipe 112 is matched with the cylinder liner water return heat exchanger 113 to control the cylinder liner water return temperature in the cylinder liner water return pipe 109 at 70-80 ℃. The gas generator 101 has certain requirements on the return water temperature of the cylinder liner water, the temperature cannot be too high or too low, the control is required to be controlled in a reasonable range, the control of the cylinder liner water temperature of the gas generator 101 can be realized without adding an additional device, the effective control of the cylinder liner water temperature can be realized through the primary temperature supplementing pipe 112 and the cylinder liner water return water heat exchanger 113, and the investment of earlier equipment can be reduced.
In this embodiment, a first temperature sensor 114 is disposed on the cylinder liner water return pipe 109, the first temperature sensor 114 is located upstream of the junction of the cylinder liner water return pipe 109 and the first-stage temperature compensating pipe 112, and an electric three-way valve for controlling the flow of the compensating water in the first-stage temperature compensating pipe 112 according to the feedback data of the first temperature sensor 114 is disposed at the junction of the cylinder liner water outlet pipe 104 and the first-stage temperature compensating pipe 112; the cylinder liner water return pipe 109 is provided with a second temperature sensor 115, the second temperature sensor 115 is positioned at the downstream of the junction of the cylinder liner water return pipe 109 and the first-stage temperature supplementing pipe 112, and an electric three-way valve for controlling the flow direction of cylinder liner water return in the cylinder liner water return pipe 109 according to feedback data of the second temperature sensor 115 is arranged at the junction of the cylinder liner water return pipe 109 and the cylinder liner water return heat exchanger 113. In this embodiment, the temperature sensor can be set to automatically monitor the temperature in the pipeline, so that many manual operations can be omitted. When the temperature of the cylinder liner water backwater is too low, the first temperature sensor 114 feeds back temperature data to the electric adjustment three-way valve, the electric adjustment three-way valve automatically opens the first-stage temperature compensating pipe 112, and part of high Wen Gangtao water in the cylinder liner water outlet pipe 104 enters the cylinder liner water backwater pipe 109, so that the temperature of the cylinder liner water backwater is increased. When the temperature of the cylinder liner water backwater is too high, the second temperature sensor 115 feeds back temperature data to the electric adjustment three-way valve, and the electric adjustment three-way valve automatically changes the flow direction of the opened cylinder liner water backwater pipe 109, so that the cylinder liner water of the cylinder liner water backwater pipe 109 enters the cylinder liner water backwater heat exchanger 113, the temperature of the cylinder liner water backwater is reduced, and the temperature requirement of the cylinder liner water backwater is met.
In this embodiment, the flue gas hot water direct combustion engine system includes a flue gas hot water direct combustion engine 116 and a cylinder liner water heat exchanger 117, a high temperature water inlet pipe 106, a cylinder liner water heat exchanger 117, and a high temperature water return pipe 108 are sequentially connected in series, and a hot water inlet pipe 118 and a hot water return pipe 119 are further disposed between the cylinder liner water heat exchanger 117 and the flue gas hot water direct combustion engine 116. The cylinder liner water heat exchanger 117 can indirectly provide heat to the flue gas hot water direct combustion engine 116 by the heat in the high temperature water inlet pipe 106, so that the cylinder liner water of the gas generator 101 can be prevented from directly entering the flue gas hot water direct combustion engine 116, the cylinder liner water cannot be polluted by lithium bromide and the like possibly leaked from the flue gas hot water direct combustion engine 116, the cleanliness of the cylinder liner water can be ensured, and the gas generator 101 cannot be corroded due to lithium bromide and the like mixed in the flue gas hot water direct combustion engine 116. When the cylinder liner water heat exchanger 117 is adopted, a plate type heat exchanger or other forms with high heat exchange efficiency can be adopted.
In this embodiment, a fuel turbocharging chamber 120 is provided in the gas generator 101, a fuel cooling system is provided on the fuel turbocharging chamber 120, the fuel cooling system includes a pipeline formed by sequentially connecting a fuel cooling liquid inlet pipe 121, a fuel cooling heat exchanger 122 and a fuel cooling liquid return pipe 123 in series, and the fuel cooling heat exchanger 122 is further connected with a cold water inlet pipe 124 and a cold water return pipe 125. The temperature of the fuel after passing through the fuel turbo-charging chamber 120 is high, and the fuel needs to be cooled before the fuel is introduced into the gas generator 101, and in this embodiment, the fuel cooling system is used to cool the fuel of the gas generator 101. Generally, antifreeze is usually used in the fuel cooling feed pipe 121 and the fuel cooling return pipe 123 to prevent the coolant from freezing when the temperature is too low, and thus the coolant cannot flow freely, which affects the heat exchange efficiency. A secondary temperature compensating pipe 126 which is matched with the fuel cooling heat exchanger 122 to control the temperature of the fuel in the fuel turbine plenum 120 to be 45-55 ℃ is arranged between the fuel cooling liquid return pipe 123 and the fuel cooling liquid inlet pipe 121. Providing a secondary temperature makeup tube 126 may ensure that the temperature in the fuel cooling inlet tube 121 meets the requirements for entering the fuel turbocharger 120.
In this embodiment, a gas direct-fired machine water outlet pipe 204 of a gas direct-fired machine 201 is connected with a user cold-warm water supply pipe 205, a gas direct-fired machine water return pipe 209 of the gas direct-fired machine 201 is connected with a user cold-warm water return pipe 208, an electric refrigerating centrifuge water outlet pipe 210 of the electric refrigerating centrifuge 202 is communicated with the user cold-warm water supply pipe 205, an electric refrigerating centrifuge water return pipe 211 of the electric refrigerating centrifuge 202 is communicated with the user cold-warm water return pipe 208, the user cold-warm water supply pipe 205 is connected with a cold-warm water supply header pipe 1, the user cold-warm water return pipe 208 is connected with a cold-warm water return header pipe 2, electric energy output of the gas generator 101 is input into the electric refrigerating centrifuge 202 through a wire, and unit smoke exhaust of the gas direct-fired machine 201 is connected with a smoke hot water direct-fired machine system through a smoke exhaust pipe 5. The electric energy output of the gas generator 101 is input into the electric refrigeration centrifuge 202 through a wire, an external power supply is not needed, and the electric energy generated in the gas generator-flue gas hot water direct-fired engine system is reasonably utilized.
In this embodiment, the boiler heating system includes a boiler 301, a boiler water outlet pipe 302, a boiler water return pipe 303, a domestic hot water supply system and a heating system, a first branch of the boiler water outlet pipe 302 is connected to the domestic hot water supply system, and a second branch of the boiler water outlet pipe 302 is connected to the heating system;
The domestic hot water supply system comprises a pipeline system formed by sequentially connecting a domestic hot water heat source water inlet pipe 304, a water supply heat exchanger 306 and a domestic hot water heat source water return pipe 305 in series, wherein the water supply heat exchanger 306 is also connected with a client water supply pipe 307 and a client water return pipe 308, the client water supply pipe 307 is communicated with a domestic hot water supply main pipe 3, the client water return pipe 308 is communicated with a domestic hot water return main pipe 4, the water inlet end of the domestic hot water heat source water inlet pipe 304 is communicated with a first branch of a boiler water outlet pipe 302, and the water outlet end of the domestic hot water heat source water return pipe 305 is connected with the boiler water return pipe 303;
the heating system comprises a pipeline system formed by sequentially connecting a heating source water inlet pipe 309, a heating heat exchanger 310 and a heating source water return pipe 311 in series, wherein the heating heat exchanger 310 is also connected with an air-conditioning water supply pipe 312 and an air-conditioning water return pipe 313, the air-conditioning water supply pipe 312 is communicated with the cold and warm water supply main pipe 1, the air-conditioning water return pipe 313 is communicated with the cold and warm water return main pipe 2, the water inlet end of the heating source water inlet pipe 309 is communicated with the second branch of the boiler water outlet pipe 302, and the water outlet end of the heating source water return pipe 311 is connected with the boiler water return pipe 303.
The general boiler 301 has higher requirements on water quality to prevent water from scaling in the boiler 301 and increase the potential safety hazard of the boiler 301, in this embodiment, the high-temperature water from the boiler 301 is not directly communicated with the water of the domestic hot water supply system and the heating system, but the water supply heat exchanger 306 is arranged at the client to exchange heat with the heating heat exchanger 310 to supply heat to the domestic hot water supply system and the heating system, so that the water can directly enter the boiler 301 without purifying the backwater of the boiler 301, the purity of the backwater entering the boiler 301 can be ensured, the number of devices in the whole system can be reduced, and the cost is saved. In addition, the water supply heat exchanger 306 and the heating heat exchanger 310 are arranged at the client to exchange heat for the domestic hot water supply system and the heating system, so that the defects of low water outlet flow but high temperature of the boiler 301 can be overcome, and hot water with larger flow and moderate temperature can be provided for users through heat exchange.
In this embodiment, a third temperature sensor 314 and a fourth temperature sensor 315 are disposed on the client water supply pipe 307 and the air-conditioning water supply pipe 312, and an electric three-way regulating valve for controlling the distribution of the high-temperature water flow in the boiler water outlet pipe 302 according to the feedback data of the third temperature sensor 314 and the fourth temperature sensor 315 is disposed at the joint of the boiler water outlet pipe 302 and the domestic hot water supply system with the heating system. The high-temperature water in the boiler water outlet pipe 302 is distributed to the domestic hot water supply system and the heating system through the three-way valve, the temperature conditions of the client can be monitored by the third temperature sensor 314 and the fourth temperature sensor 315 arranged on the client water supply pipe 307 and the air-conditioning water supply pipe 312, and then the high-temperature water is fed back to the electric three-way regulating valve at the joint of the boiler water outlet pipe 302, the domestic hot water supply system and the heating system, so that the flow of hot water entering the domestic hot water supply system and the heating system can be changed, and the actual demands of users can be met. The temperature sensor can reduce manual operation, has smaller error and can realize full-automatic accurate control of the system.
In this embodiment, the boiler heating system further includes a secondary domestic hot water supply system, the pipe diameter of the secondary domestic hot water supply system is smaller than that of the domestic hot water supply system, the secondary domestic hot water supply system includes a pipe system formed by sequentially connecting a secondary domestic hot water heat source water inlet pipe 316, a secondary water supply heat exchanger 317 and a secondary domestic hot water heat source water return pipe 318 in series, the secondary water supply heat exchanger 317 is connected with a secondary client water supply pipe 319 and a secondary client water return pipe 320, the water inlet end of the secondary domestic hot water heat source water inlet pipe 316 is communicated with the domestic hot water heat source water inlet pipe 304, the water outlet end of the secondary domestic hot water heat source water return pipe 318 is connected with the boiler water return pipe 303, the secondary client water supply pipe 319 is communicated with the domestic hot water supply main 3, and the secondary client water return pipe 320 is communicated with the domestic hot water return main 4. The secondary domestic hot water supply system can be used independently or simultaneously with the domestic hot water supply system. The domestic hot water supply is usually to supply high-temperature water to the client, and then a heat exchanger is added at the client, so that the hot water quantity in a system pipeline can be greatly reduced due to the fact that the pipeline diameter of the secondary domestic hot water supply system is smaller than that of the domestic hot water supply system, the hot water quantity required to be circulated is also greatly reduced, the heating pressure of the boiler 301 can be reduced, the energy consumption is lower, meanwhile, the pipeline diameter is smaller, the circulating water is less, and the heat loss during hot water conveying is smaller than that during large pipe diameter, and the energy consumption is lower. In general, when the hot water usage is small, the domestic hot water supply system can be turned off and the secondary domestic hot water supply system can be started. In addition, the secondary domestic hot water supply system may further include a hot water supply pipe 321, the hot water supply pipe 321 is communicated with the secondary domestic hot water heat source water inlet pipe 316, and a booster pump is disposed between the hot water supply pipe 321 and the secondary client water supply pipe 319. When the secondary domestic hot water supply system is started, if the heat of the water in the secondary client water supply pipe 319 does not meet the requirement of a user or an emergency situation (such as the failure of the secondary water supply heat exchanger 317) occurs, the hot water supplementing pipe 321 can be added to directly introduce the high temperature water into the secondary client water supply pipe 319, so that the heat of the water in the secondary client water supply pipe 319 is added.
In this embodiment, a side water collector 6 is disposed on the cold-warm water backwater main pipe 2, a first-stage pressurizing system and a second-stage pressurizing system are disposed on the cold-warm water main pipe 1, a first flow sensor 7 and a second flow sensor 8 are disposed on the cold-warm water main pipe 1, the first flow sensor 7 is located between the first-stage pressurizing system and the second-stage pressurizing system, the second flow sensor 8 is located at the downstream of the second-stage pressurizing system, and a balance pipe 9 for controlling flow balance of the cold-warm water main pipe 1 and the downstream of the second-stage pressurizing system between the first-stage pressurizing system and the second-stage pressurizing system according to feedback data of the first flow sensor 7 and the second flow sensor 8 is disposed between the cold-warm water main pipe 1 and the side water collector 6. The primary supercharging system and the secondary supercharging system are arranged, so that the water flow of a user can be increased, and the sectional supercharging effect is good. Because the primary pressurization system and the secondary pressurization system are arranged, the unbalance of the flow in the cold-warm water supply main pipe 1 is possibly caused, at the moment, the balance pipe 9 can solve the problem, if the flow between the primary pressurization system and the secondary pressurization system is large, the flow sensor can automatically control an electric control three-way valve at the junction of the cold-warm water supply main pipe 1 and the balance pipe 9, so that part of cold-warm water between the primary pressurization system and the secondary pressurization system is injected into the side water collector 6, and if the flow between the primary pressurization system and the secondary pressurization system is small, the flow sensor can automatically control the booster pump on the balance pipe 9, so that part of cold-warm water in the side water collector 6 is injected into the cold-warm water supply main pipe 1 between the primary pressurization system and the secondary pressurization system, so as to maintain the flow balance in the cold-warm water supply main pipe 1.
In this embodiment, the combined cooling, heating and power system further includes a cooling tower 10, and the cooling tower 10 is connected to the gas direct combustion engine 201, the electric refrigeration centrifuge 202 and the flue gas hot water direct combustion engine 116 through a cooling tower water outlet pipe 11 and a cooling tower water return pipe 12. The gas direct-combustion engine 201, the electric refrigeration centrifuge 202 and the flue gas hot water direct-combustion engine 116 can generate more heat during refrigeration, and a cooling device needs to be added, so that the heat generated by the units can be taken away by using the cooling tower 10 in the embodiment.
In this embodiment, the combined cooling, heating and power system further includes a water supplementing tank 13, where the water supplementing tank 13 is connected to the boiler 301, the cooling tower 10, and the side water collector 6, and is used for supplementing water to the system.
In this embodiment, the gas generator 101, the flue gas hot water direct combustion engine 116, the gas direct combustion engine 201 and the boiler 301 are all communicated with the natural gas pipeline 14, when the combined cooling, heating and power system of this embodiment is used, if a user needs domestic hot water, the boiler 301 is just started all the time, and if the user does not need domestic hot water, the boiler 301 can be selectively started.
The cooling, heating and power combined supply system in the embodiment has reasonable pipeline design and simple and convenient pipeline. Can be widely applied to places such as communities, hotels and the like, and has wide market value.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The heating system capable of being used for combined cooling, heating and power is characterized by comprising a gas generator-flue gas hot water direct-fired machine system, a gas direct-fired machine (201), a boiler heating system, a cold and warm water supply main pipe (1), a cold and warm water return main pipe (2), a domestic hot water supply main pipe (3), a domestic hot water return main pipe (4) and a control system;
the control system is configured to be a priority operation level of the gas generator-flue gas hot water direct combustion engine system in preference to the gas direct combustion engine (201) and in preference to the boiler heating system, when the heating capacity of the gas generator-flue gas hot water direct combustion engine system cannot meet the actual demand, the gas direct combustion engine (201) is operated, and when the heating capacity of the gas generator-flue gas hot water direct combustion engine system and the gas direct combustion engine (201) cannot meet the actual demand, the boiler heating system is operated;
The unit smoke exhaust of the gas direct-fired machine (201) is supplied to the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine (201) and the boiler heat supply system are connected with the cold and warm water supply main pipe (1) and the cold and warm water return main pipe (2), and the boiler heat supply system also provides domestic hot water and is connected with the domestic hot water supply main pipe (3) and the domestic hot water return main pipe (4).
2. The refrigerating system capable of being used for combined cooling, heating and power is characterized by comprising a gas generator-flue gas hot water direct-combustion engine system, a gas direct-combustion engine (201), an electric refrigerating centrifuge (202), a cold and warm water supply main pipe (1), a cold and warm water return main pipe (2), a domestic hot water supply main pipe (3), a domestic hot water return main pipe (4) and a control system;
the control system is configured to be in priority of the gas generator-flue gas hot water direct-fired machine system over the electric refrigeration centrifugal machine (202) and then over the priority operation level of the gas direct-fired machine (201), when the refrigerating capacity of the gas generator-flue gas hot water direct-fired machine system cannot meet the actual demand, the electric refrigeration centrifugal machine (202) is operated, and when the refrigerating capacities of the gas generator-flue gas hot water direct-fired machine system and the electric refrigeration centrifugal machine (202) cannot meet the actual demand, the gas direct-fired machine (201) is operated;
The unit smoke exhaust of the gas direct-fired machine (201) is supplied to the gas generator-smoke hot water direct-fired machine system, the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to the electric refrigerating centrifuge (202), and the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine (201) and the electric refrigerating centrifuge (202) are connected with the cold and warm water supply header pipe (1) and the cold and warm water return header pipe (2).
3. The combined cooling, heating and power supply system is characterized by comprising a gas generator-flue gas hot water direct combustion engine system, a gas direct combustion engine (201), an electric refrigeration centrifuge (202), a boiler heating system, a cold and warm water supply main pipe (1), a cold and warm water return main pipe (2), a domestic hot water supply main pipe (3), a domestic hot water return main pipe (4) and a control system;
when the combined cooling, heating and power heating is performed, the control system is configured to be a priority operation level of a gas generator-flue gas hot water direct combustion engine system in preference to a gas direct combustion engine (201) and then in preference to a boiler heating system, when the heating capacity of the gas generator-flue gas hot water direct combustion engine system cannot meet the actual demand, the gas direct combustion engine (201) is operated, and when the heating capacity of the gas generator-flue gas hot water direct combustion engine system and the gas direct combustion engine (201) cannot meet the actual demand, the boiler heating system is operated; when the combined cooling, heating and power supply is used for cooling, the control system is configured to be in priority of the gas generator-flue gas hot water direct-combustion engine system over the electric cooling centrifugal machine (202) and then over the priority operation level of the gas direct-combustion engine (201), when the cooling capacity of the gas generator-flue gas hot water direct-combustion engine system cannot meet the actual demand, the electric cooling centrifugal machine (202) is operated, and when the cooling capacity of the gas generator-flue gas hot water direct-combustion engine system and the electric cooling centrifugal machine (202) cannot meet the actual demand, the gas direct-combustion engine (201) is operated;
The unit smoke exhaust of the gas direct-fired machine (201) is supplied to the gas generator-smoke hot water direct-fired machine system, the electric energy of the gas generator-smoke hot water direct-fired machine system is supplied to the electric refrigerating centrifuge (202), the gas generator-smoke hot water direct-fired machine system, the gas direct-fired machine (201), the electric refrigerating centrifuge (202) and the boiler heating system are connected with the cold and warm water supply header pipe (1) and the cold and warm water return header pipe (2), and the boiler heating system continuously supplies domestic hot water and is connected with the domestic hot water supply header pipe (3) and the domestic hot water return header pipe (4).
4. A combined heat and power supply system according to claim 3, wherein the gas generator-flue gas hot water direct combustion engine system comprises a gas generator (101), a heat supply heat exchanger (102) and a flue gas hot water direct combustion engine system, the gas generator (101) is communicated with the flue gas hot water direct combustion engine system through a flue gas pipe (103), a first branch of a cylinder liner water outlet pipe (104) of the gas generator (101) is communicated with a heat exchange water inlet pipe (105) of the heat supply heat exchanger (102), a second branch is communicated with a high-temperature water inlet pipe (106) of the flue gas hot water direct combustion engine system, a heat exchange water return pipe (107) of the heat supply heat exchanger (102) is communicated with a high-temperature water return pipe (108) of the flue gas hot water direct combustion engine system and a cold water return pipe (109) of the gas generator (101), a cold water supply pipe (110) and a cold water return pipe (111) are further connected to the heat supply heat exchanger (102), the cold water supply pipe (110) is connected with the cold water return pipe (1), and the main pipe (111) is connected with the main pipe (2).
5. The combined cooling, heating and power system according to claim 4, wherein a first-stage temperature compensating pipe (112) is arranged between the cylinder liner water outlet pipe (104) and the cylinder liner water return pipe (109), a cylinder liner water return water heat exchanger (113) is arranged on the cylinder liner water return pipe (109), and the first-stage temperature compensating pipe (112) is matched with the cylinder liner water return water heat exchanger (113) to control the cylinder liner water return water temperature in the cylinder liner water return pipe (109) at 70-80 ℃.
6. The combined cooling, heating and power system according to claim 4, wherein a first temperature sensor (114) is arranged on the cylinder liner water return pipe (109), the first temperature sensor (114) is positioned at the upstream of the junction of the cylinder liner water return pipe (109) and the first-stage temperature supplementing pipe (112), and an electric three-way valve for controlling the flow of the supplementing water in the first-stage temperature supplementing pipe (112) according to the feedback data of the first temperature sensor (114) is arranged at the junction of the cylinder liner water outlet pipe (104) and the first-stage temperature supplementing pipe (112); the cylinder liner water return pipe (109) is provided with a second temperature sensor (115), the second temperature sensor (115) is positioned at the downstream of the junction of the cylinder liner water return pipe (109) and the first-stage temperature supplementing pipe (112), and an electric control three-way valve for controlling the flow direction of cylinder liner water return in the cylinder liner water return pipe (109) according to feedback data of the second temperature sensor (115) is arranged at the communication part of the cylinder liner water return pipe (109) and the cylinder liner water return heat exchanger (113).
7. A cogeneration system according to claim 3, wherein said boiler heating system comprises a boiler (301), a boiler outlet pipe (302), a boiler return pipe (303), a domestic hot water supply system and a heating system, a first branch of said boiler outlet pipe (302) being connected to said domestic hot water supply system, a second branch of said boiler outlet pipe (302) being connected to said heating system;
the domestic hot water supply system comprises a pipeline system formed by sequentially connecting a domestic hot water heat source water inlet pipe (304), a water supply heat exchanger (306) and a domestic hot water heat source water return pipe (305) in series, wherein the water supply heat exchanger (306) is also connected with a client water supply pipe (307) and a client water return pipe (308), the client water supply pipe (307) is communicated with a domestic hot water supply main pipe (3), the client water return pipe (308) is communicated with a domestic hot water return main pipe (4), the water inlet end of the domestic hot water heat source water inlet pipe (304) is communicated with a first branch of a boiler water outlet pipe (302), and the water outlet end of the domestic hot water heat source water return pipe (305) is connected with the boiler water return pipe (303);
the heating system comprises a pipeline system formed by sequentially connecting a heating source water inlet pipe (309), a heating heat exchanger (310) and a heating source water return pipe (311) in series, wherein the heating heat exchanger (310) is further connected with an air conditioning water supply pipe (312) and an air conditioning water return pipe (313), the air conditioning water supply pipe (312) is communicated with a cold and warm water supply main pipe (1), the air conditioning water return pipe (313) is communicated with a cold and warm water return main pipe (2), the water inlet end of the heating source water inlet pipe (309) is communicated with the second branch of a boiler water outlet pipe (302), and the water outlet end of the heating source water return pipe (311) is connected with the boiler water return pipe (103).
8. The cogeneration system of claim 7, wherein a third temperature sensor (314) and a fourth temperature sensor (315) are arranged on the client water supply pipe (307) and the air-conditioning water supply pipe (312), and an electric three-way regulating valve for controlling the distribution of the flow of the high-temperature water in the boiler water outlet pipe (302) according to the feedback data of the third temperature sensor (314) and the fourth temperature sensor (315) is arranged at the joint of the boiler water outlet pipe (302) and the domestic hot water supply system with the heating system.
9. The combined heat and power supply system according to claim 7, wherein the boiler heating system further comprises a secondary domestic hot water supply system, the pipe diameter of the secondary domestic hot water supply system is smaller than that of the domestic hot water supply system, the secondary domestic hot water supply system comprises a pipeline system formed by sequentially connecting a secondary domestic hot water heat source water inlet pipe (316), a secondary water supply heat exchanger (317) and a secondary domestic hot water heat source water return pipe (318) in series, the secondary water supply heat exchanger (317) is connected with a secondary client water supply pipe (319) and a secondary client water return pipe (320), the water inlet end of the secondary domestic hot water heat source water inlet pipe (316) is communicated with the domestic hot water heat source water inlet pipe (304), the water outlet end of the secondary domestic hot water heat source water return pipe (318) is connected with the boiler water return pipe (303), the secondary client water supply pipe (319) is communicated with the domestic hot water supply main (3), and the secondary client water return pipe (320) is communicated with the domestic hot water main (4).
10. A combined cooling, heating and power supply system according to claim 3, characterized in that a side water collector (6) is arranged on the cold-warm water return water main pipe (2), a primary pressurizing system and a secondary pressurizing system are arranged on the cold-warm water main pipe (1), a first flow sensor (7) and a second flow sensor (8) are arranged on the cold-warm water main pipe (1), the first flow sensor (7) is positioned between the primary pressurizing system and the secondary pressurizing system, the second flow sensor (8) is positioned at the downstream of the secondary pressurizing system, and a balance pipe (9) for controlling flow balance of the cold-warm water main pipe (1) between the primary pressurizing system and the secondary pressurizing system and downstream of the secondary pressurizing system according to feedback data of the first flow sensor (7) and the second flow sensor (8) is arranged between the cold-warm water main pipe (1) and the side water collector (6).
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| CN201710764143.3A CN107387259B (en) | 2017-08-30 | 2017-08-30 | Heating system, refrigerating system and combined cooling heating and power system |
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| CN201710764143.3A CN107387259B (en) | 2017-08-30 | 2017-08-30 | Heating system, refrigerating system and combined cooling heating and power system |
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| CN108469132A (en) * | 2018-03-06 | 2018-08-31 | 华电电力科学研究院有限公司 | A kind of distributed energy resource system and control method based on Demand-side energy supply |
| CN111102065B (en) * | 2019-12-13 | 2022-04-19 | 华鼎电源(天津)有限公司 | Integrated gas combined cooling heating and power device and control method thereof |
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| CN107387259A (en) | 2017-11-24 |
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