CN103398627B - Multi-source fluid waste heat recovery and comprehensive utilization system - Google Patents
Multi-source fluid waste heat recovery and comprehensive utilization system Download PDFInfo
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- CN103398627B CN103398627B CN201310365347.1A CN201310365347A CN103398627B CN 103398627 B CN103398627 B CN 103398627B CN 201310365347 A CN201310365347 A CN 201310365347A CN 103398627 B CN103398627 B CN 103398627B
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Abstract
The invention discloses a multi-source fluid waste heat recovery and comprehensive utilization system which comprises a high-temperature heat exchanger, a heat source end heat exchanger group, a heat source end small-cycle system, a direct heat exchanging device, a heat energy storage device, a use end heat exchanger group, a waste heat utilization system, a heat pump system and an intelligent control system, wherein the intelligent control system is connected with the high-temperature heat exchanger, the heat source end heat exchanger group, the heat source end small-cycle system, the direct heat exchanging device, the heat energy storage device, the use end heat exchanger group and the heat pump system through control cables respectively. According to the system, two independent internal circulations are set, so that dirt and impurities in water can be prevented while the temperature of a heat source end of a heat pump is guaranteed, independent physical and chemical treatment of circulating water can be performed, and the water quality of the heat source end is guaranteed; and besides, mutual contact between the heat pump and liquids containing different components is isolated through internal circulations, the cleaning and maintaining times are reduced, and the stability and the reliability of operating of the heat pump are guaranteed.
Description
Technical field
The present invention relates to multistage extraction and the comprehensive utilization of waste heat in industrial enterprise's production process, the particularly waste heat recovery of a kind of multi-source fluid and utilization system.
Realize various heating sources stream, step extraction and utilization and intelligent work pattern-recognition and process control, improve overall efficiency and the job stability of whole residual neat recovering system, realize the low emission of heat energy.
Background technology
Enterprise has been with having been slatterned to discard the mode of waste heat greatly, also will take variety of way to carry out cooling secondary again to have consumed the energy in order to maintain the temperature of medium simultaneously.The existing way of discarded waste heat has flue gas, cold oil, cooling water, middle water and sewage etc., how heat energy is wherein reclaimed, especially simultaneously the heat energy in multiple discarded thermal source is reclaimed and form the important development direction that stable thermal source has become energy-saving and emission-reduction efficiently, solve multiple waste heat and flow back to and a series of Science and Technology problems that run into such as receive and become most important theories and technical task.
Enterprise has been with having been slatterned to discard the mode of waste heat greatly, also will take variety of way to carry out cooling secondary again to have consumed the energy in order to maintain the temperature of medium simultaneously.The existing way of discarded waste heat has flue gas, cold oil, cooling water, middle water and sewage etc.Existing waste-heat recovery device only carries out energy recovery for a certain thermal source, and such system exists following several problem:
The actual conditions of 1, being produced are limit, and utilize such residual neat recovering system to be difficult to obtain stable heat energy supply.
2,, because the temperature fluctuation of source pump input is larger, make it be difficult to bring into play maximum efficiency, and affect service life.
3, be difficult to carry out control and adjusting initiatively in system, it is best that system heat exchange ratio cannot reach.
Summary of the invention
The problems referred to above that exist for solving prior art, the present invention will design a kind ofly can improve system heat exchange ratio, reclaim that heat source temperature is stable, the much higher source fluid waste heat recovery of system works reliability and utilization system.
To achieve these goals, technical scheme of the present invention is as follows: the waste heat recovery of a kind of multi-source fluid and utilization system, comprise high-temperature heat exchanger, heat source side heat exchanger set, heat source side lesser circulation, direct heat switch, thermal energy storage system, use side heat exchanger set, bootstrap system, heat pump and intelligence control system, described intelligence control system by control cables respectively with high-temperature heat exchanger, heat source side heat exchanger set, heat source side lesser circulation, direct heat switch, thermal energy storage system, use side heat exchanger set is connected with heat pump,
The input of described high-temperature heat exchanger is connected with high temperature heat source, its output is connected with thermal energy storage system through direct heat switch;
Described heat source side heat exchanger set comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system by control cables, and the non high temperature thermal source that the input of heat exchanger is corresponding with connects, its output is connected with internal circulation system; Described internal circulation system is connected with thermal energy storage system through heat pump;
Described use side heat exchanger set comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system by control cables, and the input of heat exchanger is all connected with the hot terminal of use that thermal energy storage system connects, its output is corresponding with;
The output of described thermal energy storage system is also directly connected by hot system with one;
Described high-temperature heat exchanger and heat source side heat exchanger and high temperature heat source and non high temperature thermal source form the multi-source fluid heat transfer circulatory system jointly; The input of described heat source side heat exchanger set, heat source side lesser circulation and heat pump forms heat source side internal circulation system jointly; The output of described heat pump, thermal energy storage system and use side heat exchanger set form the heat accumulation circulatory system jointly; Described use side heat exchanger set and bootstrap system form the comprehensive utilization circulatory system;
The intelligent control algorithm of described intelligence control system, comprises the following steps:
A, to various heating sources fluid carry out that parallel connection is extracted and with Heat Pump source in loop heat exchange, the control of every road heat exchange adopts FUZZY ALGORITHMS FOR CONTROL, the stability of circulating water temperature in guaranteeing; By the flow of control of heat source fluid, control the exchange of heat, FUZZY ALGORITHMS FOR CONTROL, as the execution level of controlling, is determined the valve opening on each road of multi-source fluid according to the how many instruction of heat exchange;
B, utilize neural network recognization and learn the moving law of multi-source fluid, as the instruction level of FUZZY ALGORITHMS FOR CONTROL; According to the requirement to thermal energy storage system temperature stabilization, consider the requirement to multi-source fluid chilling temperature simultaneously, in conjunction with industrial production actual conditions, neutral net adaptive learning is also summed up the heat energy Changing Pattern of multi-source heat source fluid, according to Internet Experience, provide in real time the heat exchange instruction on each road of multi-source fluid, FUZZY ALGORITHMS FOR CONTROL is controlled the valve opening on each road of multi-source fluid according to this instruction.
Each heat exchanger in heat source side heat exchanger set of the present invention has the most suitable structure and characteristics parameter of thermal source corresponding to it.
Each heat exchanger in use side heat exchanger set of the present invention has with it applying the most suitable structure and characteristics parameter of hot system.
Operation principle of the present invention is as follows: according to the different characteristics of multi-source fluid, adopt different heat energy to extract means, heat source side heat exchanger is selected different structure and characteristics parameters according to the character of fluid, internal circulation system is kept apart multi-source fluid and heat pump, improves the Stability and dependability of heat pump operating efficiency and use.Thermal energy storage system receives the water outlet from Heat Pump source, and stored hot water, also plays the effect of regulating system overall thermal energy storage capacity simultaneously on the one hand.Use side heat exchanger passes to bootstrap system by the heat in thermal energy storage system.Intelligence control system regulates the heat transfer process of whole system.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention is provided with two independently inner loop: can be when guaranteeing Heat Pump source temperature dirt and the impurity in anti-sealing, can carry out independent physics and chemistry to recirculated water and process, guaranteed the water quality of heat source side.In addition, the liquid that heat pump and heterogeneity have been isolated in interior circulation is in contact with one another, and reduces cleaning and maintenance frequency, thereby guarantees stability and the reliability of operation of heat pump.
2. the present invention arranges four sub-circulatory systems, realizes the independent heat exchange of each heat source fluid, guarantees the reliable operation of heat pump, the water quality of hot water user's heat and safety.
3. the present invention adopts the intelligent heat-exchange of multi-source fluid to control: according to the feature of each heat source fluid and flowing law, control heat-exchange time and the heat exchange amount of itself and interior recirculated water, thereby guarantee to be cooled device or system are obtaining on fully cooling basis, make the various thermals source can be complementary, realize the maximization of heat exchange, guarantee circulating water temperature substantially constant in heat source side simultaneously, improve operating efficiency and the permanence of heat pump;
4. the present invention is in series by four sub-circulatory systems: be respectively circulation in the circulation of multi-source fluid heat transfer, heat source side, heat accumulation circulation and comprehensive utilization circulation, realize the independent heat exchange of each heat source fluid, guarantee the reliable operation of heat pump, the water quality of hot water user's heat and safety;
5. the present invention carries out looping heat exchange in parallel connection extraction and Heat Pump source to various heating sources fluid, and the control of every road heat exchange adopts FUZZY ALGORITHMS FOR CONTROL, the stability of circulating water temperature in guaranteeing;
6. multimode step extraction scheme of the present invention and the different hot features of use realize and optimize step extraction and step utilization (heating during oil truck cleaning, spray, casting sand preheating etc.).Different thermals source is adopted to different heat exchange modes, as high temperature heat source and non high temperature thermal source, the direct heat-obtaining of high temperature heat source, non high temperature thermal source is by heat pump heat-obtaining.
Accompanying drawing explanation
The present invention is 1 of drawings attached only, wherein:
Fig. 1 is structural representation of the present invention.
In figure: 1, multi-source heat source fluid, 2, high-temperature heat exchanger, 3, heat source side lesser circulation, 4, direct heat switch, 5, thermal energy storage system, 6, use side heat exchanger set, 7, bootstrap system, 8, heat pump, 9, intelligence control system, 10, heat source side heat exchanger set.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.As shown in Figure 1, the waste heat recovery of a kind of multi-source fluid and utilization system, comprise high-temperature heat exchanger 2, heat source side heat exchanger set 10, heat source side lesser circulation 3, direct heat switch 4, thermal energy storage system 5, use side heat exchanger set 6, bootstrap system 7, heat pump 8 and intelligence control system 9, described intelligence control system 9 by control cables respectively with high-temperature heat exchanger 2, heat source side heat exchanger set 10, heat source side lesser circulation 3, direct heat switch 4, thermal energy storage system 5, use side heat exchanger set 6 is connected with heat pump 8,
The input of described high-temperature heat exchanger 2 is connected with high temperature heat source, its output is connected with thermal energy storage system 5 through direct heat switch 4;
Described heat source side heat exchanger set 10 comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system 9 by control cables, and the non high temperature thermal source that the input of heat exchanger is corresponding with connects, its output is connected with internal circulation system; Described internal circulation system is connected with thermal energy storage system 5 through heat pump 8;
Described use side heat exchanger set 6 comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system 9 by control cables, and the input of heat exchanger is all connected with the hot terminal of use that thermal energy storage system 5 connects, its output is corresponding with;
The output of described thermal energy storage system 5 is also directly connected by hot system with one;
Described high-temperature heat exchanger 2 and heat source side heat exchanger and high temperature heat source and non high temperature thermal source form the multi-source fluid heat transfer circulatory system jointly; The input of described heat source side heat exchanger set 10, heat source side lesser circulation 3 and heat pump 8 forms heat source side internal circulation system jointly; The common heat accumulation circulatory system that forms of the output of described heat pump 8, thermal energy storage system 5 and use side heat exchanger set 6; Described use side heat exchanger set 6 and bootstrap system 7 form the comprehensive utilization circulatory system;
The intelligent control algorithm of described intelligence control system 9, comprises the following steps:
A, to various heating sources fluid carry out that parallel connection is extracted and with Heat Pump source in loop heat exchange, the control of every road heat exchange adopts FUZZY ALGORITHMS FOR CONTROL, the stability of circulating water temperature in guaranteeing; By the flow of control of heat source fluid, control the exchange of heat, FUZZY ALGORITHMS FOR CONTROL, as the execution level of controlling, is determined the valve opening on each road of multi-source fluid according to the how many instruction of heat exchange;
B, utilize neural network recognization and learn the moving law of multi-source fluid, as the instruction level of FUZZY ALGORITHMS FOR CONTROL; According to the requirement to thermal energy storage system 5 temperature stabilizations, consider the requirement to multi-source fluid chilling temperature simultaneously, in conjunction with industrial production actual conditions, neutral net adaptive learning is also summed up the heat energy Changing Pattern of multi-source heat source fluid 1, according to Internet Experience, provide in real time the heat exchange instruction on each road of multi-source fluid, FUZZY ALGORITHMS FOR CONTROL is controlled the valve opening on each road of multi-source fluid according to this instruction.
Each heat exchanger in heat source side heat exchanger set 10 of the present invention has the most suitable structure and characteristics parameter of thermal source corresponding to it.
Each heat exchanger in use side heat exchanger set 6 of the present invention has with it applying the most suitable structure and characteristics parameter of hot system.
Operation principle of the present invention is as follows: according to the different characteristics of multi-source fluid, adopt different heat energy to extract means, heat source side heat exchanger is selected different structure and characteristics parameters according to the character of fluid, internal circulation system is kept apart multi-source fluid and heat pump 8, improves the Stability and dependability of heat pump operating efficiency and use.The water outlet that thermal energy storage system 5 receives from Heat Pump source, stored hot water, also plays the effect of regulating system overall thermal energy storage capacity simultaneously on the one hand.Use side heat exchanger passes to bootstrap system 7 by the heat in thermal energy storage system 5.Intelligence control system 9 regulates the heat transfer process of whole system.
The present invention, from the angular divisions of system, is divided into heat-exchange system, the High Efficiency Thermal exchange and heat pump 8, heat accumulation hot-water heating system, multipurpose heat-exchange system and delivery system etc. of heat source system, many thermals source and Heat Pump source internal circulation system.The higher temperature water that the flue gas of middle high temperature, High-temperature cooling oil obtain by heat exchanger and direct heat transfer device directly enters in the water tank of thermal energy storage system 5 or other cooling water is directly added to storage tank containing hot cooling water etc. as the water source of bath water.If air compressor cooling water is as heat source water, by high-performance heat exchanger, heat is changed to internal circulation system; Casting forge cooling water after filtration again by heat exchanger by heat exchange in internal circulation system.Middle water, sewage etc. change to heat in internal circulation system by vertical array tubular heat exchanger.Heat pump 8 extracts its low-quality heat energy exchange in the water tank of thermal energy storage system 5.Circulation, source pump, heat exchange flow control valve etc. in increasing after heat source water passes through plate type heat exchanger.Intelligence control system 9 is controlled each road heat exchange flow heat according to the situation of each heat source water, thereby guarantees that the stable inflow temperature that guarantees Heat Pump source of interior circulating water temperature is stable, improve heat source side water inlet cleanliness factor, thereby improves stability and the efficiency of operation of heat pump.The thermal energy storage of extracting by efficient heat exchanger, source pump is in the storage tank of thermal energy storage system 5.As heat source water side, according to the difference by hot water chemical composition, adopt different heat exchange modes, if the water of oil truck purging system is strong alkaline water, in system, will adopt pump and the heat exchanger of acid and alkali-resistance; The water that the water that is used for bathing is standard for drinking can directly be supplied water by storage tank.Consider by the difference of hot temperature degree simultaneously and adopt staged heat-supplying mode, improve by hot efficiency.
System adopts the computer control system based on PROFI-BUS network, PLC, computer, electric energy meter, intelligent water supply system, pressure sensor, flow sensor, temperature sensor etc., consists of, and realizes automatic monitoring and the computer management of equipment.Energy management system by Ethernet and enterprise is realized seamless link, raises the management level.
Claims (1)
1. multi-source fluid waste heat recovery and utilization system, it is characterized in that: comprise high-temperature heat exchanger (2), heat source side heat exchanger set (10), heat source side lesser circulation (3), direct heat switch (4), thermal energy storage system (5), use side heat exchanger set (6), bootstrap system (7), heat pump (8) and intelligence control system (9), described intelligence control system (9) by control cables respectively with high-temperature heat exchanger (2), heat source side heat exchanger set (10), heat source side lesser circulation (3), direct heat switch (4), thermal energy storage system (5), use side heat exchanger set (6) is connected with heat pump (8),
The input of described high-temperature heat exchanger (2) is connected with high temperature heat source, its output is connected with thermal energy storage system (5) through direct heat switch (4);
Described heat source side heat exchanger set (10) comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system (9) by control cables, and the non high temperature thermal source that the input of heat exchanger is corresponding with connects, its output is connected with internal circulation system; Described internal circulation system is connected with thermal energy storage system (5) through heat pump (8);
Described use side heat exchanger set (6) comprises one group of heat exchanger with different structure and characterisitic parameter, each heat exchanger is all connected to intelligence control system (9) by control cables, and the input of heat exchanger is all connected with the hot terminal of use that thermal energy storage system (5) connects, its output is corresponding with;
The output of described thermal energy storage system (5) is also directly connected by hot system with one;
Described high-temperature heat exchanger (2) and heat source side heat exchanger and high temperature heat source and non high temperature thermal source form the multi-source fluid heat transfer circulatory system jointly; The input of described heat source side heat exchanger set (10), heat source side lesser circulation (3) and heat pump (8) forms heat source side internal circulation system jointly; The output of described heat pump (8), thermal energy storage system (5) and use side heat exchanger set (6) form the heat accumulation circulatory system jointly; Described use side heat exchanger set (6) and bootstrap system (7) form the comprehensive utilization circulatory system;
The intelligent control algorithm of described intelligence control system (9), comprises the following steps:
A, to various heating sources fluid carry out that parallel connection is extracted and with Heat Pump source in loop heat exchange, the control of every road heat exchange adopts FUZZY ALGORITHMS FOR CONTROL, the stability of circulating water temperature in guaranteeing; By the flow of control of heat source fluid, control the exchange of heat, FUZZY ALGORITHMS FOR CONTROL, as the execution level of controlling, is determined the valve opening on each road of multi-source fluid according to the how many instruction of heat exchange;
B, utilize neural network recognization and learn the moving law of multi-source fluid, as the instruction level of FUZZY ALGORITHMS FOR CONTROL; According to the requirement to thermal energy storage system (5) temperature stabilization, consider the requirement to multi-source fluid chilling temperature simultaneously, in conjunction with industrial production actual conditions, neutral net adaptive learning is also summed up the heat energy Changing Pattern of multi-source heat source fluid (1), according to Internet Experience, provide in real time the heat exchange instruction on each road of multi-source fluid, FUZZY ALGORITHMS FOR CONTROL is controlled the valve opening on each road of multi-source fluid according to this instruction.
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| CN109757911B (en) * | 2019-01-09 | 2022-06-28 | 重庆海尔空调器有限公司 | Energy system, method and apparatus for controlling energy system, and storage medium |
| CN109764508A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method of energy resource system |
| CN109764391A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method and control device of energy resource system |
| CN109869882A (en) * | 2019-01-09 | 2019-06-11 | 青岛海尔空调器有限总公司 | Energy resource system, the control method and device of energy resource system, storage medium |
| CN109780912B (en) * | 2019-01-09 | 2021-05-25 | 青岛海尔空调器有限总公司 | Energy station, control method thereof and storage medium |
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| US4242872A (en) * | 1978-12-18 | 1981-01-06 | Dunham-Bush, Inc. | Attic mounted solar assist multi-source/sink residential heat pump system |
| CN1309997C (en) * | 2005-06-10 | 2007-04-11 | 东南大学 | Energy accumulation type combustion gas and heat pump composite air-conditioning |
| CN101398235A (en) * | 2007-09-29 | 2009-04-01 | 珠海慧生能源技术发展有限公司 | Three-effect multi-source heat energy pump unit |
| CN101504190A (en) * | 2009-03-11 | 2009-08-12 | 黄邦兴 | Waste hot water waste heat recovery type heat pump water heating system |
| CN201740313U (en) * | 2010-08-23 | 2011-02-09 | 天津柯瑞斯空调设备有限公司 | Multifunctional water source heat pump |
| CN102072592B (en) * | 2011-01-06 | 2012-07-04 | 双良节能系统股份有限公司 | Heat supply system for directly recovering sewage multi-section flashing steam waste heat by using multiple sections of absorption heat pumps |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780905A (en) * | 2019-01-09 | 2019-05-21 | 青岛海尔空调器有限总公司 | The method that home station shares energy stores station thermal energy |
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