WO2019085453A1 - Frostless multivariable coupled type heat pump hot blast stove system - Google Patents
Frostless multivariable coupled type heat pump hot blast stove system Download PDFInfo
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- WO2019085453A1 WO2019085453A1 PCT/CN2018/088986 CN2018088986W WO2019085453A1 WO 2019085453 A1 WO2019085453 A1 WO 2019085453A1 CN 2018088986 W CN2018088986 W CN 2018088986W WO 2019085453 A1 WO2019085453 A1 WO 2019085453A1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/06—Air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Definitions
- the invention belongs to the field of equipment for grain drying, and particularly relates to a frost-free, multi-variable coupling heat pump hot blast stove system.
- the invention application No. 201310603146.0 discloses a high-efficiency multi-functional hot blast stove, which comprises a furnace, a furnace and a chimney, and an insulation layer is arranged outside the furnace, and a passage for air to pass between the insulation layer and the furnace is provided, and the lower part of the passage A water jacket is provided, and a middle partition for extending the air path is provided in the passage. A heated top layer is also disposed between the top of the furnace and the insulating layer, and a top partition for extending the air path is also provided in the heated top layer.
- the water jacket can also produce hot water or steam while producing hot air. Due to the arrangement of the heat preservation tank, the water circulation can be self-circulating or circulating through the water pump, and the water temperature is up to 100 degrees Celsius. Therefore, the furnace side plates of the combustion zone of the furnace body are well protected from high temperature damage.
- the invention application No. 201210558824.1 discloses a novel all-steel structure direct-fired jacket type hot blast stove, which is composed of a furnace shell, a mounting flange, a positioning ring, a combustion cylinder, a round basin-shaped chassis, a conical mixing cylinder, The installation sleeve, the cold air heat exchange jacket, the insulation layer, the cold air inlet, the combustion device, the cold air supply device, and the automatic control system are composed.
- the application of the utility model No. 201620783013.5 discloses a hot blast stove of a grain drying tower, the burner is connected with the candle combustion chamber of the furnace body, the front main arch of the upper part of the interface has a front arch, and the bottom of the main combustion chamber is buried
- the secondary air supply pipe, the secondary air supply pipe is covered with thermal insulation layer, and the high temperature refractory layer is arranged on the thermal insulation layer, the tertiary air supply box is located at the bottom of the main combustion chamber, and the tertiary air pipe is connected with the third air supply box.
- a rear arch is arranged laterally between the main combustion chamber and the flue gas combustion chamber, a dust removing auger is arranged at the intersection of the root of the rear arch and the bottom of the furnace, a clearing port is arranged at the bottom of the ashes chamber, and the main combustion chamber has a viewing port 2, in the smoke
- the gas combustion chamber is provided with a pressure sensor, and a temperature sensor is provided at the smoke bridge.
- the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system, the technical scheme of which is as follows:
- a frost-free, multivariable coupled heat pump hot blast stove system for providing hot air for grain drying characterized by:
- a first heat exchanger, a second heat exchanger and a heat pump unit composed of a compressor, a condenser, a throttle, an evaporator and a gas-liquid separator are disposed in the system, and the first heat exchanger and the second The heat exchanger is connected with the heat pipe of the heat pump unit to form a preheating zone, a low temperature zone, a medium temperature zone and a high temperature zone in the air supply pipeline, which are sequentially heated by the fresh air inlet to the fresh air supply port;
- the temperature gradient of the fresh air from the fresh air inlet to the fresh air supply port is increased.
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- the heat pump unit is composed of a heat pump unit No. 1, a heat pump unit No. 2, and a heat pump unit No. 3.
- the first heat pump unit is connected by a first compressor (1-1), a first condenser (1-2), a first throttle (1-3), a first evaporator (1-4) and a first a gas-liquid separator (1-5);
- the second heat pump unit is composed of a second compressor (2-1), a second condenser (2-2), a second throttle (2-3), a second evaporator (2-4) and a second a two-gas liquid separator (2-5);
- the third heat pump unit is connected by a third compressor (3-1), a third condenser (3-2), a third throttle (3-3), a third evaporator (3-4) and a Three gas liquid separator (3-5);
- the "first heat exchanger, the second heat exchanger and the heat pipe connection of the heat pump unit" are specifically:
- the refrigerant outlet line of the first compressor (1-1) is connected to the refrigerant outlet of the first condenser (1-2),
- the refrigerant outlet of the first condenser (1-2) leads to the refrigerant outlet of the first heat exchanger (4-2) through a pipe provided with a solenoid valve (1-8), and the first heat exchanger (4-2) a refrigerant outlet line connected to the refrigerant inlet of the first throttle (1-3);
- a refrigerant outlet line of the second compressor (2-1) is connected to the refrigerant inlet of the second condenser (2-2);
- the refrigerant outlet line of the third compressor (3-1) is connected to the refrigerant inlet of the second heat exchanger (5-2), and a solenoid valve (3-8) is disposed on the pipeline;
- the refrigerant outlet of the second heat exchanger (5-2) is connected to the refrigerant inlet of the third condenser (3-2).
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- a solution circulation line composed of a solution total pool (7-12), a first solution pump (7-13), a second solution pump (7-14) and corresponding pipes;
- Corresponding solution pools are respectively disposed at lower ends of the first evaporator (1-4), the second evaporator (2-4), and the third evaporator (3-4),
- a solution heat exchanger is disposed in the total solution pool (7-12), and a concentrated solution zone and a dilute solution zone are formed;
- the concentrated solution in the total pool of the solution and the concentrated solution zone is respectively sent to the first evaporator (1-4), the second evaporator (2-4) and the third through the first solution pump (7-13) and the pipeline.
- the dilute solution line falling back into the solution tank is transported to the dilute solution zone of the solution pool (7-12).
- the dilute solution flowing into the dilute solution zone is transported into the liquid pipeline of the solution heat exchanger through the second solution pump (7-14) to carry out heat exchange to precipitate moisture, and the solution after the precipitated water flows back to the concentrated solution zone to form a solution. cycle.
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- the heat exchange heat of the solution heat exchanger is supplied by the refrigerant discharged from the first condenser (1-2), the second condenser (2-2), and the third condenser (3-2).
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- first line No. 1 provided with a solenoid valve (1-7) between a refrigerant outlet of the first condenser (1-2) and a refrigerant inlet of the first restrictor (1-3);
- a second inlet pipe No. 1 provided with a solenoid valve (1-8) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the first heat exchanger (4-2).
- a second outlet pipe of No. 1 is formed between the refrigerant outlet of a heat exchanger (4-2) and the refrigerant inlet of the first throttle (1-3), and the No. 1 second inlet pipe and No. 1
- the second outlet line forms the second line of No. 1;
- a third inlet line No. 1 provided with a solenoid valve (1-9) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a third outlet line No. 1 with the refrigerant inlet of the first restrictor (1-3), and the third inlet line No. 1 and the third outlet line No. 1 form a third line No. 1;
- a second inlet line No. 2 provided with a solenoid valve (2-8) is formed between the refrigerant outlet of the second condenser (2-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a second outlet line No. 2 with the refrigerant inlet of the second throttle (2-3), the second inlet line No. 2 and the second outlet line No. 2 forming a second line No. 2;
- a second inlet line No. 3 provided with a solenoid valve (3-10) is formed between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger
- a second outlet line No. 3 is formed between the refrigerant inlet of the third throttle (3-3), and the second inlet line No. 3 and the second outlet line No. 3 form a second line No. 3.
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- a first drying filter (1-6) is further disposed on the pipeline of the first condenser (1-2) and the first restrictor (1-3);
- a second drying filter (2-6) is further disposed on the pipeline of the second condenser (2-2) and the second throttle (2-3);
- a third drying filter (3-6) is also disposed on the piping of the third condenser (3-2) and the third throttle (3-3).
- a frost-free, multivariable coupled heat pump hot blast stove system characterized in that:
- the solution pools disposed at the lower ends of the evaporators are spatially disposed above the total pool of the solution;
- the dilute solution in the solution tank flows into the dilute solution zone of the solution pool by its own gravity.
- a frost-free, multivariable coupled heat pump hot blast stove system of the present invention is a frost-free, multivariable coupled heat pump hot blast stove system of the present invention
- the gradient formed by the preheating zone, the low temperature zone, the medium temperature zone and the high temperature zone is formed on the air supply pipeline.
- the frost-free operation in winter is realized by setting a circulation line of the frost-free solution
- the dilute solution refluxed in the circulation line of the frost-free solution is subjected to water analysis in the form of heat exchange, and the heat of the heat exchange is provided by the waste heat of the heat pump unit without additionally increasing the heat exchange working unit.
- the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system.
- the frost-free operation mode in winter uses the characteristics of water absorption and dilute solution desorption of the concentrated solution to control the air dew point temperature to ensure that it is lower than At 0 °C, the aqueous solution still exists in a liquid state, which solves a series of problems caused by frosting and defrosting of the heat pump hot blast stove, and improves system stability and reliability.
- the fresh air is preheated by utilizing the residual heat of the system to fully utilize the heat;
- Two table-type cold heat exchangers are added, through the innovation of multi-variable coupling technology, system preheating, reheating, making full use of system waste heat, realizing thermal cascade utilization, partition function, dividing fresh air heating zone into low temperature zone, medium temperature zone and In the high temperature zone, the hot air temperature passing through the condenser is further increased.
- the condensation effect of the outlet side condenser is increased, the energy efficiency of the product is improved, the high temperature load of the compressor is also reduced, and the service life of the compressor is ensured.
- the air source heat pump system is used as the system heat source, and the valve is realized.
- the intelligent control achieves the free transition of the winter and summer modes and reduces the energy consumption; 4.
- the non-corrosive solution is directly sprayed onto the evaporation side fins, and the moisture on the surface of the fins is also removed.
- the heat exchange effect of the fin heat exchanger simultaneously dries the moisture in the air entering the evaporator.
- Figure 1 is a schematic view of the structure of the present invention
- FIG. 2 is a schematic diagram of a heat cascade circulating preheating mode of the present invention
- Fig. 3 is a schematic view showing the frost-free mode of the thermal step cycle of the present invention.
- 1-1 is the first compressor; 2-1 is the second compressor; 3-1 is the third compressor; 1-5 is the first gas-liquid separator; 2-5 is the second gas-liquid separation 3-5 is a third gas-liquid separator; 1-4 is a first evaporator; 2-4 is a second evaporator; 3-4 is a third evaporator; 1-3 is a first throttle; 2-3 is the second throttle; 3-3 is the third throttle; 1-6 is the first dry filter; 2-6 is the second dry filter; 3-6 is the third dry filter; 1-2 is the first condenser; 2-2 is the second condenser; 3-2 is the third condenser; 4-2 is the first heat exchanger; 5-2 is the second heat exchanger; 1-7 , 1-8, 1-9, 2-7, 2-8, 3-7, 3-8, 3-9, 3-10 are solenoid valves; 7-13 is the first solution pump; 7-14 is the first Two solution pump.
- a first heat exchanger, a second heat exchanger and a heat pump unit composed of a compressor, a condenser, a throttle, an evaporator and a gas-liquid separator are disposed in the system, and the first heat exchanger and the second The heat exchanger is connected with the heat pipe of the heat pump unit to form a preheating zone, a low temperature zone, a medium temperature zone and a high temperature zone in the air supply pipeline, which are sequentially heated by the fresh air inlet to the fresh air supply port;
- the temperature gradient of the fresh air from the fresh air inlet to the fresh air supply port is increased.
- the heat pump unit is composed of a heat pump unit No. 1, a heat pump unit No. 2, and a heat pump unit No. 3.
- the first heat pump unit is connected by a first compressor (1-1), a first condenser (1-2), a first throttle (1-3), a first evaporator (1-4) and a first a gas-liquid separator (1-5);
- the second heat pump unit is composed of a second compressor (2-1), a second condenser (2-2), a second throttle (2-3), a second evaporator (2-4) and a second a two-gas liquid separator (2-5);
- the third heat pump unit is connected by a third compressor (3-1), a third condenser (3-2), a third throttle (3-3), a third evaporator (3-4) and a Three gas liquid separator (3-5);
- the "first heat exchanger, the second heat exchanger and the heat pipe connection of the heat pump unit" are specifically:
- the refrigerant outlet line of the first compressor (1-1) is connected to the refrigerant outlet of the first condenser (1-2),
- the refrigerant outlet of the first condenser (1-2) leads to the refrigerant outlet of the first heat exchanger (4-2) through a pipe provided with a solenoid valve (1-8), and the first heat exchanger (4-2) a refrigerant outlet line connected to the refrigerant inlet of the first throttle (1-3);
- a refrigerant outlet line of the second compressor (2-1) is connected to the refrigerant inlet of the second condenser (2-2);
- the refrigerant outlet line of the third compressor (3-1) is connected to the refrigerant inlet of the second heat exchanger (5-2), and a solenoid valve (3-8) is disposed on the pipeline;
- the refrigerant outlet of the second heat exchanger (5-2) is connected to the refrigerant inlet of the third condenser (3-2).
- a solution circulation line composed of a solution total pool (7-12), a first solution pump (7-13), a second solution pump (7-14) and corresponding pipes;
- Corresponding solution pools are respectively disposed at lower ends of the first evaporator (1-4), the second evaporator (2-4), and the third evaporator (3-4),
- a solution heat exchanger is disposed in the total solution pool (7-12), and a concentrated solution zone and a dilute solution zone are formed;
- the concentrated solution in the total pool of the solution and the concentrated solution zone is respectively sent to the first evaporator (1-4), the second evaporator (2-4) and the third through the first solution pump (7-13) and the pipeline.
- the dilute solution line falling back into the solution tank is transported to the dilute solution zone of the solution pool (7-12).
- the dilute solution flowing into the dilute solution zone is transported into the liquid pipeline of the solution heat exchanger through the second solution pump (7-14) to carry out heat exchange to precipitate moisture, and the solution after the precipitated water flows back to the concentrated solution zone to form a solution. cycle.
- the heat exchange heat of the solution heat exchanger is supplied by the refrigerant discharged from the first condenser (1-2), the second condenser (2-2), and the third condenser (3-2).
- first line No. 1 provided with a solenoid valve (1-7) between a refrigerant outlet of the first condenser (1-2) and a refrigerant inlet of the first restrictor (1-3);
- a second inlet pipe No. 1 provided with a solenoid valve (1-8) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the first heat exchanger (4-2).
- a second outlet pipe of No. 1 is formed between the refrigerant outlet of a heat exchanger (4-2) and the refrigerant inlet of the first throttle (1-3), and the No. 1 second inlet pipe and No. 1
- the second outlet line forms the second line of No. 1;
- a third inlet line No. 1 provided with a solenoid valve (1-9) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a third outlet line No. 1 with the refrigerant inlet of the first restrictor (1-3), and the third inlet line No. 1 and the third outlet line No. 1 form a third line No. 1;
- a second inlet line No. 2 provided with a solenoid valve (2-8) is formed between the refrigerant outlet of the second condenser (2-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a second outlet line No. 2 with the refrigerant inlet of the second throttle (2-3), the second inlet line No. 2 and the second outlet line No. 2 forming a second line No. 2;
- a second inlet line No. 3 provided with a solenoid valve (3-10) is formed between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger
- a second outlet line No. 3 is formed between the refrigerant inlet of the third throttle (3-3), and the second inlet line No. 3 and the second outlet line No. 3 form a second line No. 3.
- a first drying filter (1-6) is further disposed on the pipeline of the first condenser (1-2) and the first restrictor (1-3);
- a second drying filter (2-6) is further disposed on the pipeline of the second condenser (2-2) and the second throttle (2-3);
- a third drying filter (3-6) is also disposed on the piping of the third condenser (3-2) and the third throttle (3-3).
- the solution pools disposed at the lower ends of the evaporators are spatially disposed above the total pool of the solution;
- the dilute solution in the solution tank flows into the dilute solution zone of the solution pool by its own gravity.
- Refrigeration system workflow Compressor 1 draws in low-temperature and low-pressure gaseous refrigerant, which becomes a high-temperature and high-pressure gas state after being compressed, discharged into condenser 2 for condensation and cooling to become liquid, and the dissipated heat is transferred to the heated air.
- the liquid refrigerant is dried by the drying filter 6 to filter the moisture impurities in the refrigerant, and then throttled and depressurized by the throttle valve 3, and the throttled and depressurized refrigerant flows into the evaporator, and the air is absorbed by the evaporator 4.
- the heat in the gas becomes a gaseous refrigerant that flows into the vapor-liquid separator 5 and is sucked in by the compressor port, thus forming a closed thermodynamic cycle system.
- Heat pump hot air system work flow the residual heat generated by the refrigerant at the outlet of the first condenser 1-2 in summer, enters the heat exchanger 4-2 through the solenoid valve 1-8 to preheat the fresh air, which is the preheating zone;
- the exhaust gas made by machine 3-1 passes through the electromagnetic valve 3-8 and then enters the heat exchanger 5-2 and returns to the condenser 3-2.
- the condenser 3-2 heats the fresh air for the first time, which is a low temperature zone;
- the exhaust gas made by the second compressor 2-1 directly enters the condenser 2-2, and the condenser 2-2 performs the second heating of the fresh air, which is the intermediate temperature zone; the exhaust of the first compressor 1-1 passes.
- the condenser 1-2, the condenser 1-2 performs the third heating of the fresh air, and then the fourth heating of the fresh air through the heat exchanger 5-2, which is a high temperature zone; thus forming a heat pump hot air circulation.
- Frost-free system workflow pumping the concentrated solution of the solution pool 7-12 to the spray line of the evaporator through the solution pump 7-13, the concentrated solution is evenly sprayed into the air environment near the fins, absorbing air The water is used to reduce the ambient dew point temperature. At this time, the solution becomes a dilute solution, which is stored in the solution pool on the lower side of the evaporator 4. After reaching a certain height, it is sent to the solution pool 7-12 by gravity, and the diluted solution passes through the solution pump 7- 14 pumping to the upper heat exchanger of the solution pool for heat exchange, and then forming a concentrated solution after precipitating water.
- a thermal cascade cycle preheating mode and a thermal step cycle frostless mode can be formed (see Figures 2 and 3).
- a frost-free, multivariable coupled heat pump hot blast stove system of the present invention is a frost-free, multivariable coupled heat pump hot blast stove system of the present invention
- the gradient formed by the preheating zone, the low temperature zone, the medium temperature zone and the high temperature zone is formed on the air supply pipeline.
- the frost-free operation in winter is realized by setting a circulation line of the frost-free solution
- the dilute solution refluxed in the circulation line of the frost-free solution is analyzed by heat exchange, and the heat of the heat exchange is provided by the residual heat of the heat pump unit, and the heat exchange working unit is not additionally increased.
- the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system.
- the frost-free operation mode in winter uses the characteristics of water absorption and dilute solution desorption of the concentrated solution to control the air dew point temperature to ensure that it is lower than At 0 °C, the aqueous solution still exists in a liquid state, which solves a series of problems caused by frosting and defrosting of the heat pump hot blast stove, and improves system stability and reliability.
- the fresh air is preheated by utilizing the residual heat of the system to fully utilize the heat;
- Two table-type cold heat exchangers are added, through the innovation of multi-variable coupling technology, system preheating, reheating, making full use of system waste heat, realizing thermal cascade utilization, partition function, dividing fresh air heating zone into low temperature zone, medium temperature zone and In the high temperature zone, the hot air temperature passing through the condenser is further increased.
- the condensation effect of the outlet side condenser is increased, the energy efficiency of the product is improved, the high temperature load of the compressor is also reduced, and the service life of the compressor is ensured.
- the air source heat pump system is used as the system heat source, and the valve is realized.
- the intelligent control achieves the free transition of the winter and summer modes and reduces the energy consumption; 4.
- the non-corrosive solution is directly sprayed onto the evaporation side fins, and the moisture on the surface of the fins is also removed.
- the heat exchange effect of the fin heat exchanger simultaneously dries the moisture in the air entering the evaporator.
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Abstract
A frostless multivariable coupled type heat pump hot blast stove system, for use in providing hot air for grain drying. A first heat exchanger (4-2), a second heat exchanger (5-2), and a heat pump unit consisting of a compressor (1-1, 2-1, 3-1), a condenser (1-2, 2-2, 3-2), a throttle device (1-3, 2-3, 3-3), an evaporator (1-4, 2-4, 3-4), and a gas-liquid separator (1-5, 2-5, 3-5) are provided in the system. By means of heat pipeline connection configurations of the first heat exchanger (4-2), the second heat exchanger (5-2), and the heat pump unit, a preheating zone, a low temperature zone, a medium temperature zone, and a high temperature zone with heat gradient ascent in sequence from a fresh air inlet to a fresh air outlet are formed on an air outlet pipeline. By means of the configurations, temperature gradient ascent of fresh air from the fresh air inlet to the fresh air outlet is achieved and heat gradient utilization is implemented. By providing a frostless solution circulation pipeline, frostless operation in winter is implemented. A solution completing frostless operation in the frostless solution circulation pipeline flows back by means of its own weight. Water is separated out from the dilute solution flowing back in the frostless solution circulation pipeline by means of heat exchange, the heat in heat exchange is provided by waste heat of the heat pump unit, and no additional heat pump unit is provided.
Description
本发明属于粮食烘干用设备领域,具体涉及一种无霜、多变量耦合型热泵热风炉***。The invention belongs to the field of equipment for grain drying, and particularly relates to a frost-free, multi-variable coupling heat pump hot blast stove system.
近年来,我国粮食烘干机械设备行业获得快速的发展,但整体上还是处于市场比较混乱,产品技术落后,企业创新能力差、研发能力较弱,一次性购置成本偏高等阶段,亟需从政策法规、市场层面、技术层面等,推动烘干机行业持续健康和有序发展。现有的粮食烘干技术有自然风干,晒干、燃烧化学燃料烘干、电加热、红外,微波干燥等,这些技术能耗巨大,污染严重,效率低,安全差,显然,这些旧式的干燥设备不符合当今社会的可持续发展的趋势。寻找一种可替代旧式的干燥设备,且安全、环保、节能的干燥设备显得越发紧迫。In recent years, China's grain drying machinery and equipment industry has achieved rapid development, but overall it is still in a chaotic market, product technology is backward, enterprise innovation ability is poor, research and development ability is weak, and one-time purchase cost is high. Regulations, market level, and technical level will promote the sustainable and orderly development of the dryer industry. The existing grain drying technology has natural air drying, drying, burning chemical fuel drying, electric heating, infrared, microwave drying, etc. These technologies have huge energy consumption, serious pollution, low efficiency, and poor safety. Obviously, these old-style drying methods Equipment does not meet the trend of sustainable development in today's society. Looking for an alternative to the old drying equipment, and the safety, environmental protection, energy saving drying equipment is becoming more and more urgent.
随着中国能源消耗的加剧,人均能源利用率已不能满足需求,国家政府对能源利用的宏观调控,热泵设备的节能减排优势已日渐明显。与燃油,燃气锅炉相比,全年平均可节约能源约70%,加上电价的走低和燃料价格的上涨,运行费用低的优点日益突出;热泵产品无任何燃烧排放物,制冷剂选用环保制冷剂,对臭氧层零污染,是较好的环保型产品;设备全自动控制,无需人员蹲守,节省了人力成本。但是,现在市场上的热泵热风炉处于刚推广阶段,还有许多技术需要创新和突破。With the intensification of China's energy consumption, the per capita energy utilization rate can no longer meet the demand. The national government's macro-control of energy utilization and the energy-saving and emission-reducing advantages of heat pump equipment have become increasingly obvious. Compared with fuel oil and gas boilers, the average annual energy saving is about 70%. Coupled with the lower electricity price and higher fuel prices, the advantages of low operating costs are increasingly prominent. The heat pump products have no combustion emissions, and the refrigerants are environmentally friendly. The agent, which is zero-pollution to the ozone layer, is a better environmentally friendly product; the equipment is fully automatic controlled, eliminating the need for personnel to guard and saving labor costs. However, the heat pump hot blast stove on the market is in the stage of promotion, and there are still many technologies that require innovation and breakthrough.
目前市场上使用的热泵热风炉仍存在一些问题:1、***冬季运行时,室外环境温度低,蒸发温度降低,蒸发器表面易结上厚厚的霜层,从而导致机组性能下降,甚至不能正常换热,机组出现故障停机,传统化霜方式需停机或逆向化霜,造成烘干效率低。2、夏季***运行时,室外环境温度高,使得***冷凝温度升高,新风经冷凝器换热后,冷凝器内热量并不能完全释放,造成大量热量的浪费,同时降低***的运行效率,对粮食烘干产生不利影响。3、新风流过相同温度的换热器后,风温很难提高到所需温度。4、***冬季运行时,由于进风侧的冷凝器进行温度很低,从而冷凝效果好,导致此***高低压小,机组的循环动力难以保证,机组的运行能效差。同时也会出现此***蒸发压力低,蒸发侧翅片更容易结霜。5、机组靠出风侧的***由于出风侧的温度高,最后面的 ***冷凝温度高,此***一直处于高负荷运行状态,压缩机的寿命会大大降低。At present, there are still some problems in the heat pump hot air stove used in the market: 1. When the system is running in winter, the outdoor environment temperature is low, the evaporation temperature is lowered, and the surface of the evaporator is easy to be thickened with a thick frost layer, which leads to a decrease in the performance of the unit, or even normal. Heat exchange, the unit has a fault shutdown, the traditional defrosting method needs to stop or reverse defrosting, resulting in low drying efficiency. 2. During the summer system operation, the outdoor ambient temperature is high, which makes the system condensing temperature increase. After the fresh air is exchanged by the condenser, the heat in the condenser can not be completely released, which causes a large amount of heat to be wasted, and at the same time reduces the operating efficiency of the system. Grain drying has an adverse effect. 3. After the fresh air flows through the heat exchanger of the same temperature, the wind temperature is difficult to increase to the required temperature. 4. When the system is running in winter, the temperature of the condenser on the inlet side is very low, so the condensation effect is good, resulting in low and low pressure of the system. The cycle power of the unit is difficult to guarantee, and the operation efficiency of the unit is poor. At the same time, the evaporation pressure of this system is low, and the evaporation side fins are more likely to be frosted. 5. The system on the air outlet side of the unit has a high temperature on the air outlet side, and the system condensation temperature on the last side is high. This system has been in a high load operation state, and the life of the compressor will be greatly reduced.
申请号为201310603146.0的发明申请,公开了一种高效多功能热风炉,包括炉膛、炉膛与烟囱连通,炉膛之外设有保温层,保温层与炉膛之间设有供空气通过的通道,通道下部设有水夹套,通道内设有用于延长空气路径的中层隔板。炉膛顶部与保温层之间还设有加热顶层,加热顶层内还设有用于延长空气路径的顶层隔板。通过水夹套可以在生产热风的同时还生产热水或蒸气,由于配置保温水箱,水循环可以自循环也可以通过水泵循环,水的温度最高为100摄氏度。所以很好的保护了炉体燃烧堆聚区的炉膛侧板不受高温损坏。The invention application No. 201310603146.0 discloses a high-efficiency multi-functional hot blast stove, which comprises a furnace, a furnace and a chimney, and an insulation layer is arranged outside the furnace, and a passage for air to pass between the insulation layer and the furnace is provided, and the lower part of the passage A water jacket is provided, and a middle partition for extending the air path is provided in the passage. A heated top layer is also disposed between the top of the furnace and the insulating layer, and a top partition for extending the air path is also provided in the heated top layer. The water jacket can also produce hot water or steam while producing hot air. Due to the arrangement of the heat preservation tank, the water circulation can be self-circulating or circulating through the water pump, and the water temperature is up to 100 degrees Celsius. Therefore, the furnace side plates of the combustion zone of the furnace body are well protected from high temperature damage.
申请号为201210558824.1的发明申请,公开了一种新型全钢结构直燃夹套式热风炉,由炉体外壳、安装法兰、定位套圈、燃烧筒、圆盆形底盘、圆锥形混合筒、安装套筒、冷风换热夹套、保温层、冷风进风口、燃烧装置、冷风供风装置、自动控制***组成。The invention application No. 201210558824.1 discloses a novel all-steel structure direct-fired jacket type hot blast stove, which is composed of a furnace shell, a mounting flange, a positioning ring, a combustion cylinder, a round basin-shaped chassis, a conical mixing cylinder, The installation sleeve, the cold air heat exchange jacket, the insulation layer, the cold air inlet, the combustion device, the cold air supply device, and the automatic control system are composed.
申请号为201620783013.5的实用新型申请,公开了一种粮食干燥塔的热风炉,燃烧器与炉体的烛燃烧室的接口连接,该接口上部的主燃烧室内有前拱,主燃烧室底部埋设二次送风管,二次送风管上铺隔热保温层,在隔热保温层上有高温耐火料层,三次送风箱位于主燃烧室底部,三次风管与三次送风箱连接,在主燃烧室与烟气燃烧室之间横向设置后拱,在后拱的根部与炉底交接处设置除尘绞龙,在沉灰室底部设置清灰口,主燃烧室有观察口二,在烟气燃烧室设有压力传感器,在烟桥设有温度传感器。The application of the utility model No. 201620783013.5 discloses a hot blast stove of a grain drying tower, the burner is connected with the candle combustion chamber of the furnace body, the front main arch of the upper part of the interface has a front arch, and the bottom of the main combustion chamber is buried The secondary air supply pipe, the secondary air supply pipe is covered with thermal insulation layer, and the high temperature refractory layer is arranged on the thermal insulation layer, the tertiary air supply box is located at the bottom of the main combustion chamber, and the tertiary air pipe is connected with the third air supply box. A rear arch is arranged laterally between the main combustion chamber and the flue gas combustion chamber, a dust removing auger is arranged at the intersection of the root of the rear arch and the bottom of the furnace, a clearing port is arranged at the bottom of the ashes chamber, and the main combustion chamber has a viewing port 2, in the smoke The gas combustion chamber is provided with a pressure sensor, and a temperature sensor is provided at the smoke bridge.
发明内容Summary of the invention
为解决以上问题,本发明提供了一种无霜、多变量耦合型热泵热风炉***,其技术方案具体如下:In order to solve the above problems, the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system, the technical scheme of which is as follows:
一种无霜、多变量耦合型热泵热风炉***,用于提供粮食烘干用热风,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system for providing hot air for grain drying, characterized by:
在该***内设有第一换热器、第二换热器及由压缩机、冷凝器、节流器、蒸发器与气液分离器构成的热泵机组,通过第一换热器、第二换热器与热泵机组的热量管路连接设置,形成送风管路上、由新风进风口向新风送风口方向依次呈热量梯度上升的预热区、低温区、中温区及高温区;A first heat exchanger, a second heat exchanger and a heat pump unit composed of a compressor, a condenser, a throttle, an evaporator and a gas-liquid separator are disposed in the system, and the first heat exchanger and the second The heat exchanger is connected with the heat pipe of the heat pump unit to form a preheating zone, a low temperature zone, a medium temperature zone and a high temperature zone in the air supply pipeline, which are sequentially heated by the fresh air inlet to the fresh air supply port;
通过以上设置实现新风由新风进风口到新风送风口的温度梯度上升。Through the above settings, the temperature gradient of the fresh air from the fresh air inlet to the fresh air supply port is increased.
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
所述热泵机组由一号热泵机组、二号热泵机组及三号热泵机组构成,The heat pump unit is composed of a heat pump unit No. 1, a heat pump unit No. 2, and a heat pump unit No. 3.
一号热泵机组由依次连接的第一压缩机(1-1)、第一冷凝器(1-2)、第一节流器 (1-3)、第一蒸发器(1-4)及第一气液分离器(1-5)构成;The first heat pump unit is connected by a first compressor (1-1), a first condenser (1-2), a first throttle (1-3), a first evaporator (1-4) and a first a gas-liquid separator (1-5);
二号热泵机组由依次连接的第二压缩机(2-1)、第二冷凝器(2-2)、第二节流器(2-3)、第二蒸发器(2-4)及第二气液分离器(2-5)构成;The second heat pump unit is composed of a second compressor (2-1), a second condenser (2-2), a second throttle (2-3), a second evaporator (2-4) and a second a two-gas liquid separator (2-5);
三号热泵机组由依次连接的第三压缩机(3-1)、第三冷凝器(3-2)、第三节流器(3-3)、第三蒸发器(3-4)及第三气液分离器(3-5)构成;The third heat pump unit is connected by a third compressor (3-1), a third condenser (3-2), a third throttle (3-3), a third evaporator (3-4) and a Three gas liquid separator (3-5);
所述的“第一换热器、第二换热器与热泵机组的热量管路连接”具体为:The "first heat exchanger, the second heat exchanger and the heat pipe connection of the heat pump unit" are specifically:
第一压缩机(1-1)的冷媒出口管路连接至第一冷凝器(1-2)的冷媒出口,The refrigerant outlet line of the first compressor (1-1) is connected to the refrigerant outlet of the first condenser (1-2),
第一冷凝器(1-2)的冷媒出口通过设置电磁阀(1-8)的管路通向第一换热器(4-2)的冷媒出口,第一换热器(4-2)的冷媒出口管路连接至第一节流器(1-3)的冷媒进口;The refrigerant outlet of the first condenser (1-2) leads to the refrigerant outlet of the first heat exchanger (4-2) through a pipe provided with a solenoid valve (1-8), and the first heat exchanger (4-2) a refrigerant outlet line connected to the refrigerant inlet of the first throttle (1-3);
第二压缩机(2-1)的冷媒出口管路连接至第二冷凝器(2-2)的冷媒进口;a refrigerant outlet line of the second compressor (2-1) is connected to the refrigerant inlet of the second condenser (2-2);
第三压缩机(3-1)的冷媒出口管路连接至第二换热器(5-2)的冷媒进口,在所述管路上设置电磁阀(3-8);The refrigerant outlet line of the third compressor (3-1) is connected to the refrigerant inlet of the second heat exchanger (5-2), and a solenoid valve (3-8) is disposed on the pipeline;
第二换热器(5-2)的冷媒出口连接至第三冷凝器(3-2)的冷媒进口。The refrigerant outlet of the second heat exchanger (5-2) is connected to the refrigerant inlet of the third condenser (3-2).
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
在该***内还设有由溶液总池(7-12)、第一溶液泵(7-13)、第二溶液泵(7-14)及相应管道构成的溶液循环管路;Also provided in the system is a solution circulation line composed of a solution total pool (7-12), a first solution pump (7-13), a second solution pump (7-14) and corresponding pipes;
在所述第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的下端分别设置相应的溶液池,Corresponding solution pools are respectively disposed at lower ends of the first evaporator (1-4), the second evaporator (2-4), and the third evaporator (3-4),
在所述溶液总池(7-12)内设有溶液换热器、并形成有浓溶液区及稀溶液区;a solution heat exchanger is disposed in the total solution pool (7-12), and a concentrated solution zone and a dilute solution zone are formed;
所述溶液总池内、浓溶液区的浓溶液经由第一溶液泵(7-13)、管路分别输送至第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的喷淋管路,The concentrated solution in the total pool of the solution and the concentrated solution zone is respectively sent to the first evaporator (1-4), the second evaporator (2-4) and the third through the first solution pump (7-13) and the pipeline. The spray line of the evaporator (3-4),
完成各自喷淋作业后,形成稀溶液,回落于各自的溶液池内,After completing the respective spraying operations, a dilute solution is formed and falls back into the respective solution pools.
回落于溶液池内的稀溶液管路输送至溶液总池(7-12)的稀溶液区,The dilute solution line falling back into the solution tank is transported to the dilute solution zone of the solution pool (7-12).
流进稀溶液区的的稀溶液通过第二溶液泵(7-14)输送进溶液换热器的液体管路进行换热析出水分、析出水分后的溶液流回浓溶液区,以此形成溶液循环。The dilute solution flowing into the dilute solution zone is transported into the liquid pipeline of the solution heat exchanger through the second solution pump (7-14) to carry out heat exchange to precipitate moisture, and the solution after the precipitated water flows back to the concentrated solution zone to form a solution. cycle.
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
所述溶液换热器的换热用热量由第一冷凝器(1-2)、第二冷凝器(2-2)及第三冷凝器(3-2)排出的冷媒共同提供。The heat exchange heat of the solution heat exchanger is supplied by the refrigerant discharged from the first condenser (1-2), the second condenser (2-2), and the third condenser (3-2).
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
在第一冷凝器(1-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成设置有电磁阀(1-7)的1号第一管路;Forming a first line No. 1 provided with a solenoid valve (1-7) between a refrigerant outlet of the first condenser (1-2) and a refrigerant inlet of the first restrictor (1-3);
在第一冷凝器(1-2)的冷媒出口与第一换热器(4-2)的冷媒进口之间形成设置有电磁阀(1-8)的1号第二进管路,在第一换热器(4-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第二出管路,所述1号第二进管路与1号第二出管路形成1号第二管路;A second inlet pipe No. 1 provided with a solenoid valve (1-8) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the first heat exchanger (4-2). A second outlet pipe of No. 1 is formed between the refrigerant outlet of a heat exchanger (4-2) and the refrigerant inlet of the first throttle (1-3), and the No. 1 second inlet pipe and No. 1 The second outlet line forms the second line of No. 1;
在第一冷凝器(1-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(1-9)的1号第三进管路,在溶液换热器的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第三出管路,所述1号第三进管路与1号第三出管路形成1号第三管路;A third inlet line No. 1 provided with a solenoid valve (1-9) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a third outlet line No. 1 with the refrigerant inlet of the first restrictor (1-3), and the third inlet line No. 1 and the third outlet line No. 1 form a third line No. 1;
在第二冷凝器(2-2)的冷媒出口与第二节流器(2-3)的冷媒进口之间形成设置有电磁阀(2-7)的2号第一管路;Forming a first line No. 2 provided with a solenoid valve (2-7) between a refrigerant outlet of the second condenser (2-2) and a refrigerant inlet of the second throttle (2-3);
在第二冷凝器(2-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(2-8)的2号第二进管路,在溶液换热器的冷媒出口与第二节流器(2-3)的冷媒进口之间形成2号第二出管路,所述2号第二进管路与2号第二出管路形成2号第二管路;A second inlet line No. 2 provided with a solenoid valve (2-8) is formed between the refrigerant outlet of the second condenser (2-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a second outlet line No. 2 with the refrigerant inlet of the second throttle (2-3), the second inlet line No. 2 and the second outlet line No. 2 forming a second line No. 2;
在第三冷凝器(3-2)的冷媒出口与第三节流器(3-3)的冷媒进口之间形成设置有电磁阀(3-9)的3号第一管路;Forming a first line No. 3 provided with a solenoid valve (3-9) between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the third throttle (3-3);
在第三冷凝器(3-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(3-10)的3号第二进管路,在溶液换热器的冷媒出口与第三节流器(3-3)的冷媒进口之间形成3号第二出管路,所述3号第二进管路与3号第二出管路形成3号第二管路。A second inlet line No. 3 provided with a solenoid valve (3-10) is formed between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger A second outlet line No. 3 is formed between the refrigerant inlet of the third throttle (3-3), and the second inlet line No. 3 and the second outlet line No. 3 form a second line No. 3.
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
在第一冷凝器(1-2)与第一节流器(1-3)的管路上还设置第一干燥过滤器(1-6);a first drying filter (1-6) is further disposed on the pipeline of the first condenser (1-2) and the first restrictor (1-3);
在第二冷凝器(2-2)与第二节流器(2-3)的管路上还设置第二干燥过滤器(2-6);a second drying filter (2-6) is further disposed on the pipeline of the second condenser (2-2) and the second throttle (2-3);
在第三冷凝器(3-2)与第三节流器(3-3)的管路上还设置第三干燥过滤器(3-6)。A third drying filter (3-6) is also disposed on the piping of the third condenser (3-2) and the third throttle (3-3).
根据本发明的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to the present invention, characterized in that:
设于各蒸发器下端的溶液池在空间上呈高于溶液总池的物理方式设置;The solution pools disposed at the lower ends of the evaporators are spatially disposed above the total pool of the solution;
所述溶液池内的稀溶液通过自身的重力作用流入溶液总池的稀溶液区。The dilute solution in the solution tank flows into the dilute solution zone of the solution pool by its own gravity.
本发明的一种无霜、多变量耦合型热泵热风炉***,A frost-free, multivariable coupled heat pump hot blast stove system of the present invention,
其一,通过设置的三组热泵机组配合两个换热器,并通过内部的管路结构设置,形成送风管路上、由预热区、低温区、中温区及高温区依次排布的梯度温度上升,实现热量的梯度利用;First, through the three sets of heat pump units set up to match the two heat exchangers, and through the internal pipeline structure, the gradient formed by the preheating zone, the low temperature zone, the medium temperature zone and the high temperature zone is formed on the air supply pipeline. The temperature rises to achieve the gradient utilization of heat;
其二;通过设置无霜溶液循环管路,实现冬季的无霜作业;Secondly, the frost-free operation in winter is realized by setting a circulation line of the frost-free solution;
其三,无霜溶液循环管路内完成无霜作业的溶液通过自身重力实现回流;Third, the solution for completing the frost-free operation in the circulation line of the frost-free solution is recirculated by its own gravity;
其四,无霜溶液循环管路内回流的稀溶液通过热交换的形式完成水分析出,所述热 交换的热量由热泵机组的余热提供,不另外增加换热工作机组。Fourth, the dilute solution refluxed in the circulation line of the frost-free solution is subjected to water analysis in the form of heat exchange, and the heat of the heat exchange is provided by the waste heat of the heat pump unit without additionally increasing the heat exchange working unit.
综上所述,本发明的一种无霜、多变量耦合型热泵热风炉***,1、冬季采用无霜运行模式利用浓溶液的吸水和稀溶液解吸的特性控制空气露点温度,保证在低于0℃时水溶液仍以液态存在,解决热泵热风炉因结霜、融霜带来一系列问题,提高***稳定性和可靠性;夏季利用***余热对新风进行预热,充分利用热量;2、新增两个表冷式换热器,通过多变量耦合技术的创新,***预热,再热,充分利用***余热,实现热量梯级利用,分区功能,将新风加热区划分为低温区,中温区和高温区,这样通过冷凝器的热风温度会进一步提高。增加了出风侧冷凝器的冷凝效果,提高了产品的能效,也降低了此压缩机的高温负荷,保证了压缩机的使用寿命;3、采用空气源热泵***作为***热源,并实现了阀门的智能控制达到冬季夏季模式的自由转换且降低能耗的作用;4、采用不带腐蚀性的溶液,直接喷射到蒸发侧翅片上,将翅片表面的水份带走的同时,也增加了翅片换热器的热交换效果,同时将进入蒸发器的空气中的水份提前干燥。In summary, the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system. 1. The frost-free operation mode in winter uses the characteristics of water absorption and dilute solution desorption of the concentrated solution to control the air dew point temperature to ensure that it is lower than At 0 °C, the aqueous solution still exists in a liquid state, which solves a series of problems caused by frosting and defrosting of the heat pump hot blast stove, and improves system stability and reliability. In the summer, the fresh air is preheated by utilizing the residual heat of the system to fully utilize the heat; Two table-type cold heat exchangers are added, through the innovation of multi-variable coupling technology, system preheating, reheating, making full use of system waste heat, realizing thermal cascade utilization, partition function, dividing fresh air heating zone into low temperature zone, medium temperature zone and In the high temperature zone, the hot air temperature passing through the condenser is further increased. The condensation effect of the outlet side condenser is increased, the energy efficiency of the product is improved, the high temperature load of the compressor is also reduced, and the service life of the compressor is ensured. 3. The air source heat pump system is used as the system heat source, and the valve is realized. The intelligent control achieves the free transition of the winter and summer modes and reduces the energy consumption; 4. The non-corrosive solution is directly sprayed onto the evaporation side fins, and the moisture on the surface of the fins is also removed. The heat exchange effect of the fin heat exchanger simultaneously dries the moisture in the air entering the evaporator.
图1为本发明的结构示意图;Figure 1 is a schematic view of the structure of the present invention;
图2为本发明的热量梯级循环预热模式示意图;2 is a schematic diagram of a heat cascade circulating preheating mode of the present invention;
图3为本发明的热量梯级循环无霜模式示意图。Fig. 3 is a schematic view showing the frost-free mode of the thermal step cycle of the present invention.
图中,1-1为第一压缩机;2-1为第二压缩机;3-1为第三压缩机;1-5为第一气液分离器;2-5为第二气液分离器;3-5为第三气液分离器;1-4为第一蒸发器;2-4为第二蒸发器;3-4为第三蒸发器;1-3为第一节流器;2-3为第二节流器;3-3为第三节流器;1-6为一号干燥过滤器;2-6为第二干燥过滤器;3-6为第三干燥过滤器;1-2为第一冷凝器;2-2为第二冷凝器;3-2为第三冷凝器;4-2为第一换热器;5-2为第二换热器;1-7、1-8、1-9、2-7、2-8、3-7、3-8、3-9、3-10为电磁阀;7-13为第一溶液泵;7-14为第二溶液泵。In the figure, 1-1 is the first compressor; 2-1 is the second compressor; 3-1 is the third compressor; 1-5 is the first gas-liquid separator; 2-5 is the second gas-liquid separation 3-5 is a third gas-liquid separator; 1-4 is a first evaporator; 2-4 is a second evaporator; 3-4 is a third evaporator; 1-3 is a first throttle; 2-3 is the second throttle; 3-3 is the third throttle; 1-6 is the first dry filter; 2-6 is the second dry filter; 3-6 is the third dry filter; 1-2 is the first condenser; 2-2 is the second condenser; 3-2 is the third condenser; 4-2 is the first heat exchanger; 5-2 is the second heat exchanger; 1-7 , 1-8, 1-9, 2-7, 2-8, 3-7, 3-8, 3-9, 3-10 are solenoid valves; 7-13 is the first solution pump; 7-14 is the first Two solution pump.
下面,根据说明书附图和具体实施方式对本发明的一种无霜、多变量耦合型热泵热风炉***作进一步具体说明。Hereinafter, a frost-free, multivariable coupling type heat pump hot blast stove system of the present invention will be further specifically described in accordance with the drawings and specific embodiments of the specification.
如图1所示的一种无霜、多变量耦合型热泵热风炉***,用于提供粮食烘干用热风,A frost-free, multivariable coupled heat pump hot blast stove system as shown in Figure 1 for providing hot air for grain drying,
在该***内设有第一换热器、第二换热器及由压缩机、冷凝器、节流器、蒸发器与 气液分离器构成的热泵机组,通过第一换热器、第二换热器与热泵机组的热量管路连接设置,形成送风管路上、由新风进风口向新风送风口方向依次呈热量梯度上升的预热区、低温区、中温区及高温区;A first heat exchanger, a second heat exchanger and a heat pump unit composed of a compressor, a condenser, a throttle, an evaporator and a gas-liquid separator are disposed in the system, and the first heat exchanger and the second The heat exchanger is connected with the heat pipe of the heat pump unit to form a preheating zone, a low temperature zone, a medium temperature zone and a high temperature zone in the air supply pipeline, which are sequentially heated by the fresh air inlet to the fresh air supply port;
通过以上设置实现新风由新风进风口到新风送风口的温度梯度上升。Through the above settings, the temperature gradient of the fresh air from the fresh air inlet to the fresh air supply port is increased.
其中,among them,
所述热泵机组由一号热泵机组、二号热泵机组及三号热泵机组构成,The heat pump unit is composed of a heat pump unit No. 1, a heat pump unit No. 2, and a heat pump unit No. 3.
一号热泵机组由依次连接的第一压缩机(1-1)、第一冷凝器(1-2)、第一节流器(1-3)、第一蒸发器(1-4)及第一气液分离器(1-5)构成;The first heat pump unit is connected by a first compressor (1-1), a first condenser (1-2), a first throttle (1-3), a first evaporator (1-4) and a first a gas-liquid separator (1-5);
二号热泵机组由依次连接的第二压缩机(2-1)、第二冷凝器(2-2)、第二节流器(2-3)、第二蒸发器(2-4)及第二气液分离器(2-5)构成;The second heat pump unit is composed of a second compressor (2-1), a second condenser (2-2), a second throttle (2-3), a second evaporator (2-4) and a second a two-gas liquid separator (2-5);
三号热泵机组由依次连接的第三压缩机(3-1)、第三冷凝器(3-2)、第三节流器(3-3)、第三蒸发器(3-4)及第三气液分离器(3-5)构成;The third heat pump unit is connected by a third compressor (3-1), a third condenser (3-2), a third throttle (3-3), a third evaporator (3-4) and a Three gas liquid separator (3-5);
所述的“第一换热器、第二换热器与热泵机组的热量管路连接”具体为:The "first heat exchanger, the second heat exchanger and the heat pipe connection of the heat pump unit" are specifically:
第一压缩机(1-1)的冷媒出口管路连接至第一冷凝器(1-2)的冷媒出口,The refrigerant outlet line of the first compressor (1-1) is connected to the refrigerant outlet of the first condenser (1-2),
第一冷凝器(1-2)的冷媒出口通过设置电磁阀(1-8)的管路通向第一换热器(4-2)的冷媒出口,第一换热器(4-2)的冷媒出口管路连接至第一节流器(1-3)的冷媒进口;The refrigerant outlet of the first condenser (1-2) leads to the refrigerant outlet of the first heat exchanger (4-2) through a pipe provided with a solenoid valve (1-8), and the first heat exchanger (4-2) a refrigerant outlet line connected to the refrigerant inlet of the first throttle (1-3);
第二压缩机(2-1)的冷媒出口管路连接至第二冷凝器(2-2)的冷媒进口;a refrigerant outlet line of the second compressor (2-1) is connected to the refrigerant inlet of the second condenser (2-2);
第三压缩机(3-1)的冷媒出口管路连接至第二换热器(5-2)的冷媒进口,在所述管路上设置电磁阀(3-8);The refrigerant outlet line of the third compressor (3-1) is connected to the refrigerant inlet of the second heat exchanger (5-2), and a solenoid valve (3-8) is disposed on the pipeline;
第二换热器(5-2)的冷媒出口连接至第三冷凝器(3-2)的冷媒进口。The refrigerant outlet of the second heat exchanger (5-2) is connected to the refrigerant inlet of the third condenser (3-2).
其中,among them,
在该***内还设有由溶液总池(7-12)、第一溶液泵(7-13)、第二溶液泵(7-14)及相应管道构成的溶液循环管路;Also provided in the system is a solution circulation line composed of a solution total pool (7-12), a first solution pump (7-13), a second solution pump (7-14) and corresponding pipes;
在所述第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的下端分别设置相应的溶液池,Corresponding solution pools are respectively disposed at lower ends of the first evaporator (1-4), the second evaporator (2-4), and the third evaporator (3-4),
在所述溶液总池(7-12)内设有溶液换热器、并形成有浓溶液区及稀溶液区;a solution heat exchanger is disposed in the total solution pool (7-12), and a concentrated solution zone and a dilute solution zone are formed;
所述溶液总池内、浓溶液区的浓溶液经由第一溶液泵(7-13)、管路分别输送至第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的喷淋管路,The concentrated solution in the total pool of the solution and the concentrated solution zone is respectively sent to the first evaporator (1-4), the second evaporator (2-4) and the third through the first solution pump (7-13) and the pipeline. The spray line of the evaporator (3-4),
完成各自喷淋作业后,形成稀溶液,回落于各自的溶液池内,After completing the respective spraying operations, a dilute solution is formed and falls back into the respective solution pools.
回落于溶液池内的稀溶液管路输送至溶液总池(7-12)的稀溶液区,The dilute solution line falling back into the solution tank is transported to the dilute solution zone of the solution pool (7-12).
流进稀溶液区的的稀溶液通过第二溶液泵(7-14)输送进溶液换热器的液体管路进 行换热析出水分、析出水分后的溶液流回浓溶液区,以此形成溶液循环。The dilute solution flowing into the dilute solution zone is transported into the liquid pipeline of the solution heat exchanger through the second solution pump (7-14) to carry out heat exchange to precipitate moisture, and the solution after the precipitated water flows back to the concentrated solution zone to form a solution. cycle.
其中,among them,
所述溶液换热器的换热用热量由第一冷凝器(1-2)、第二冷凝器(2-2)及第三冷凝器(3-2)排出的冷媒共同提供。The heat exchange heat of the solution heat exchanger is supplied by the refrigerant discharged from the first condenser (1-2), the second condenser (2-2), and the third condenser (3-2).
其中,among them,
在第一冷凝器(1-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成设置有电磁阀(1-7)的1号第一管路;Forming a first line No. 1 provided with a solenoid valve (1-7) between a refrigerant outlet of the first condenser (1-2) and a refrigerant inlet of the first restrictor (1-3);
在第一冷凝器(1-2)的冷媒出口与第一换热器(4-2)的冷媒进口之间形成设置有电磁阀(1-8)的1号第二进管路,在第一换热器(4-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第二出管路,所述1号第二进管路与1号第二出管路形成1号第二管路;A second inlet pipe No. 1 provided with a solenoid valve (1-8) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the first heat exchanger (4-2). A second outlet pipe of No. 1 is formed between the refrigerant outlet of a heat exchanger (4-2) and the refrigerant inlet of the first throttle (1-3), and the No. 1 second inlet pipe and No. 1 The second outlet line forms the second line of No. 1;
在第一冷凝器(1-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(1-9)的1号第三进管路,在溶液换热器的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第三出管路,所述1号第三进管路与1号第三出管路形成1号第三管路;A third inlet line No. 1 provided with a solenoid valve (1-9) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a third outlet line No. 1 with the refrigerant inlet of the first restrictor (1-3), and the third inlet line No. 1 and the third outlet line No. 1 form a third line No. 1;
在第二冷凝器(2-2)的冷媒出口与第二节流器(2-3)的冷媒进口之间形成设置有电磁阀(2-7)的2号第一管路;Forming a first line No. 2 provided with a solenoid valve (2-7) between a refrigerant outlet of the second condenser (2-2) and a refrigerant inlet of the second throttle (2-3);
在第二冷凝器(2-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(2-8)的2号第二进管路,在溶液换热器的冷媒出口与第二节流器(2-3)的冷媒进口之间形成2号第二出管路,所述2号第二进管路与2号第二出管路形成2号第二管路;A second inlet line No. 2 provided with a solenoid valve (2-8) is formed between the refrigerant outlet of the second condenser (2-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a second outlet line No. 2 with the refrigerant inlet of the second throttle (2-3), the second inlet line No. 2 and the second outlet line No. 2 forming a second line No. 2;
在第三冷凝器(3-2)的冷媒出口与第三节流器(3-3)的冷媒进口之间形成设置有电磁阀(3-9)的3号第一管路;Forming a first line No. 3 provided with a solenoid valve (3-9) between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the third throttle (3-3);
在第三冷凝器(3-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(3-10)的3号第二进管路,在溶液换热器的冷媒出口与第三节流器(3-3)的冷媒进口之间形成3号第二出管路,所述3号第二进管路与3号第二出管路形成3号第二管路。A second inlet line No. 3 provided with a solenoid valve (3-10) is formed between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger A second outlet line No. 3 is formed between the refrigerant inlet of the third throttle (3-3), and the second inlet line No. 3 and the second outlet line No. 3 form a second line No. 3.
其中,among them,
在第一冷凝器(1-2)与第一节流器(1-3)的管路上还设置第一干燥过滤器(1-6);a first drying filter (1-6) is further disposed on the pipeline of the first condenser (1-2) and the first restrictor (1-3);
在第二冷凝器(2-2)与第二节流器(2-3)的管路上还设置第二干燥过滤器(2-6);a second drying filter (2-6) is further disposed on the pipeline of the second condenser (2-2) and the second throttle (2-3);
在第三冷凝器(3-2)与第三节流器(3-3)的管路上还设置第三干燥过滤器(3-6)。A third drying filter (3-6) is also disposed on the piping of the third condenser (3-2) and the third throttle (3-3).
其中,among them,
设于各蒸发器下端的溶液池在空间上呈高于溶液总池的物理方式设置;The solution pools disposed at the lower ends of the evaporators are spatially disposed above the total pool of the solution;
所述溶液池内的稀溶液通过自身的重力作用流入溶液总池的稀溶液区。The dilute solution in the solution tank flows into the dilute solution zone of the solution pool by its own gravity.
工作过程:work process:
制冷***工作流程:压缩机1吸入低温低压的气态制冷剂,通过压缩做功后变为高温高压的气态,排入到冷凝器2进行冷凝降温变成液态,散发的热量转移到被加热的空气中,液态制冷剂通过干燥过滤器6进行干燥过滤制冷剂中水分杂质后,通过节流阀3进行节流降压,节流降压后的制冷剂流入到蒸发器中,通过蒸发器4吸收空气中的热量变为气态制冷剂流入到汽液分离器5中,再被压缩机口吸入,如此形成一个闭式热力循环***。Refrigeration system workflow: Compressor 1 draws in low-temperature and low-pressure gaseous refrigerant, which becomes a high-temperature and high-pressure gas state after being compressed, discharged into condenser 2 for condensation and cooling to become liquid, and the dissipated heat is transferred to the heated air. The liquid refrigerant is dried by the drying filter 6 to filter the moisture impurities in the refrigerant, and then throttled and depressurized by the throttle valve 3, and the throttled and depressurized refrigerant flows into the evaporator, and the air is absorbed by the evaporator 4. The heat in the gas becomes a gaseous refrigerant that flows into the vapor-liquid separator 5 and is sucked in by the compressor port, thus forming a closed thermodynamic cycle system.
热泵热风***工作流程:夏季一号冷凝器1-2出口制冷剂产生的余热,经过电磁阀1-8进入换热器4-2对新风进行预热,此为预热区;由三号压缩机3-1制成的排气经过电磁阀3-8先进入换热器5-2后回到冷凝器3-2,冷凝器3-2对新风进行第一次加热,此为低温区;由二号压缩机2-1制成的排气直接进入冷凝器2-2,冷凝器2-2对新风进行第二次加热,此为中温区;一号压缩机1-1的排气经过冷凝器1-2,冷凝器1-2对新风进行第三次加热,后经过换热器5-2对新风进行第四次加热,此为高温区;如此形成一个热泵热风循环。Heat pump hot air system work flow: the residual heat generated by the refrigerant at the outlet of the first condenser 1-2 in summer, enters the heat exchanger 4-2 through the solenoid valve 1-8 to preheat the fresh air, which is the preheating zone; The exhaust gas made by machine 3-1 passes through the electromagnetic valve 3-8 and then enters the heat exchanger 5-2 and returns to the condenser 3-2. The condenser 3-2 heats the fresh air for the first time, which is a low temperature zone; The exhaust gas made by the second compressor 2-1 directly enters the condenser 2-2, and the condenser 2-2 performs the second heating of the fresh air, which is the intermediate temperature zone; the exhaust of the first compressor 1-1 passes. The condenser 1-2, the condenser 1-2 performs the third heating of the fresh air, and then the fourth heating of the fresh air through the heat exchanger 5-2, which is a high temperature zone; thus forming a heat pump hot air circulation.
无霜***工作流程:通过溶液泵7-13,将溶液总池7-12的浓溶液泵送到蒸发器的喷淋管路,浓溶液被均匀喷淋到翅片附近空气环境中,吸收空气中水分从而降低环境露点温度,此时溶液变为稀溶液,存储在蒸发器4下侧的溶液池内,到达一定高度后经重力作用送至溶液总池7-12,稀溶液通过溶液泵7-14泵送至溶液池上部换热器进行热交换,析出水分后变为浓溶液。通过以上过程可形成热量梯级循环预热模式与热量梯级循环无霜模式(见图2、3)。Frost-free system workflow: pumping the concentrated solution of the solution pool 7-12 to the spray line of the evaporator through the solution pump 7-13, the concentrated solution is evenly sprayed into the air environment near the fins, absorbing air The water is used to reduce the ambient dew point temperature. At this time, the solution becomes a dilute solution, which is stored in the solution pool on the lower side of the evaporator 4. After reaching a certain height, it is sent to the solution pool 7-12 by gravity, and the diluted solution passes through the solution pump 7- 14 pumping to the upper heat exchanger of the solution pool for heat exchange, and then forming a concentrated solution after precipitating water. Through the above process, a thermal cascade cycle preheating mode and a thermal step cycle frostless mode can be formed (see Figures 2 and 3).
本发明的一种无霜、多变量耦合型热泵热风炉***,A frost-free, multivariable coupled heat pump hot blast stove system of the present invention,
其一,通过设置的三组热泵机组配合两个换热器,并通过内部的管路结构设置,形成送风管路上、由预热区、低温区、中温区及高温区依次排布的梯度温度上升,实现热量的梯度利用;First, through the three sets of heat pump units set up to match the two heat exchangers, and through the internal pipeline structure, the gradient formed by the preheating zone, the low temperature zone, the medium temperature zone and the high temperature zone is formed on the air supply pipeline. The temperature rises to achieve the gradient utilization of heat;
其二;通过设置无霜溶液循环管路,实现冬季的无霜作业;Secondly, the frost-free operation in winter is realized by setting a circulation line of the frost-free solution;
其三,无霜溶液循环管路内完成无霜作业的溶液通过自身重力实现回流;Third, the solution for completing the frost-free operation in the circulation line of the frost-free solution is recirculated by its own gravity;
其四,无霜溶液循环管路内回流的稀溶液通过热交换的形式完成水分析出,所述热交换的热量由热泵机组的余热提供,不另外增加换热工作机组。Fourth, the dilute solution refluxed in the circulation line of the frost-free solution is analyzed by heat exchange, and the heat of the heat exchange is provided by the residual heat of the heat pump unit, and the heat exchange working unit is not additionally increased.
综上所述,本发明的一种无霜、多变量耦合型热泵热风炉***,1、冬季采用无霜运行模式利用浓溶液的吸水和稀溶液解吸的特性控制空气露点温度,保证在低于0℃时水溶液仍以液态存在,解决热泵热风炉因结霜、融霜带来一系列问题,提高***稳定性 和可靠性;夏季利用***余热对新风进行预热,充分利用热量;2、新增两个表冷式换热器,通过多变量耦合技术的创新,***预热,再热,充分利用***余热,实现热量梯级利用,分区功能,将新风加热区划分为低温区,中温区和高温区,这样通过冷凝器的热风温度会进一步提高。增加了出风侧冷凝器的冷凝效果,提高了产品的能效,也降低了此压缩机的高温负荷,保证了压缩机的使用寿命;3、采用空气源热泵***作为***热源,并实现了阀门的智能控制达到冬季夏季模式的自由转换且降低能耗的作用;4、采用不带腐蚀性的溶液,直接喷射到蒸发侧翅片上,将翅片表面的水份带走的同时,也增加了翅片换热器的热交换效果,同时将进入蒸发器的空气中的水份提前干燥。In summary, the present invention provides a frost-free, multi-variable coupled heat pump hot blast stove system. 1. The frost-free operation mode in winter uses the characteristics of water absorption and dilute solution desorption of the concentrated solution to control the air dew point temperature to ensure that it is lower than At 0 °C, the aqueous solution still exists in a liquid state, which solves a series of problems caused by frosting and defrosting of the heat pump hot blast stove, and improves system stability and reliability. In the summer, the fresh air is preheated by utilizing the residual heat of the system to fully utilize the heat; Two table-type cold heat exchangers are added, through the innovation of multi-variable coupling technology, system preheating, reheating, making full use of system waste heat, realizing thermal cascade utilization, partition function, dividing fresh air heating zone into low temperature zone, medium temperature zone and In the high temperature zone, the hot air temperature passing through the condenser is further increased. The condensation effect of the outlet side condenser is increased, the energy efficiency of the product is improved, the high temperature load of the compressor is also reduced, and the service life of the compressor is ensured. 3. The air source heat pump system is used as the system heat source, and the valve is realized. The intelligent control achieves the free transition of the winter and summer modes and reduces the energy consumption; 4. The non-corrosive solution is directly sprayed onto the evaporation side fins, and the moisture on the surface of the fins is also removed. The heat exchange effect of the fin heat exchanger simultaneously dries the moisture in the air entering the evaporator.
Claims (7)
- 一种无霜、多变量耦合型热泵热风炉***,用于提供粮食烘干用热风,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system for providing hot air for grain drying, characterized by:在该***内设有第一换热器、第二换热器及由压缩机、冷凝器、节流器、蒸发器与气液分离器构成的热泵机组,通过第一换热器、第二换热器与热泵机组的热量管路连接设置,形成送风管路上、由新风进风口向新风送风口方向依次呈热量梯度上升的预热区、低温区、中温区及高温区;A first heat exchanger, a second heat exchanger and a heat pump unit composed of a compressor, a condenser, a throttle, an evaporator and a gas-liquid separator are disposed in the system, and the first heat exchanger and the second The heat exchanger is connected with the heat pipe of the heat pump unit to form a preheating zone, a low temperature zone, a medium temperature zone and a high temperature zone in the air supply pipeline, which are sequentially heated by the fresh air inlet to the fresh air supply port;通过以上设置实现新风由新风进风口到新风送风口的温度梯度上升。Through the above settings, the temperature gradient of the fresh air from the fresh air inlet to the fresh air supply port is increased.
- 根据权利要求1所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claim 1, wherein:所述热泵机组由一号热泵机组、二号热泵机组及三号热泵机组构成,The heat pump unit is composed of a heat pump unit No. 1, a heat pump unit No. 2, and a heat pump unit No. 3.一号热泵机组由依次连接的第一压缩机(1-1)、第一冷凝器(1-2)、第一节流器(1-3)、第一蒸发器(1-4)及第一气液分离器(1-5)构成;The first heat pump unit is connected by a first compressor (1-1), a first condenser (1-2), a first throttle (1-3), a first evaporator (1-4) and a first a gas-liquid separator (1-5);二号热泵机组由依次连接的第二压缩机(2-1)、第二冷凝器(2-2)、第二节流器(2-3)、第二蒸发器(2-4)及第二气液分离器(2-5)构成;The second heat pump unit is composed of a second compressor (2-1), a second condenser (2-2), a second throttle (2-3), a second evaporator (2-4) and a second a two-gas liquid separator (2-5);三号热泵机组由依次连接的第三压缩机(3-1)、第三冷凝器(3-2)、第三节流器(3-3)、第三蒸发器(3-4)及第三气液分离器(3-5)构成;The third heat pump unit is connected by a third compressor (3-1), a third condenser (3-2), a third throttle (3-3), a third evaporator (3-4) and a Three gas liquid separator (3-5);所述的“第一换热器、第二换热器与热泵机组的热量管路连接”具体为:The "first heat exchanger, the second heat exchanger and the heat pipe connection of the heat pump unit" are specifically:第一压缩机(1-1)的冷媒出口管路连接至第一冷凝器(1-2)的冷媒出口,The refrigerant outlet line of the first compressor (1-1) is connected to the refrigerant outlet of the first condenser (1-2),第一冷凝器(1-2)的冷媒出口通过设置电磁阀(1-8)的管路通向第一换热器(4-2)的冷媒出口,第一换热器(4-2)的冷媒出口管路连接至第一节流器(1-3)的冷媒进口;The refrigerant outlet of the first condenser (1-2) leads to the refrigerant outlet of the first heat exchanger (4-2) through a pipe provided with a solenoid valve (1-8), and the first heat exchanger (4-2) a refrigerant outlet line connected to the refrigerant inlet of the first throttle (1-3);第二压缩机(2-1)的冷媒出口管路连接至第二冷凝器(2-2)的冷媒进口;a refrigerant outlet line of the second compressor (2-1) is connected to the refrigerant inlet of the second condenser (2-2);第三压缩机(3-1)的冷媒出口管路连接至第二换热器(5-2)的冷媒进口,在所述管路上设置电磁阀(3-8);The refrigerant outlet line of the third compressor (3-1) is connected to the refrigerant inlet of the second heat exchanger (5-2), and a solenoid valve (3-8) is disposed on the pipeline;第二换热器(5-2)的冷媒出口连接至第三冷凝器(3-2)的冷媒进口。The refrigerant outlet of the second heat exchanger (5-2) is connected to the refrigerant inlet of the third condenser (3-2).
- 根据权利要求1所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claim 1, wherein:在该***内还设有由溶液总池(7-12)、第一溶液泵(7-13)、第二溶液泵(7-14)及相应管道构成的溶液循环管路;Also provided in the system is a solution circulation line composed of a solution total pool (7-12), a first solution pump (7-13), a second solution pump (7-14) and corresponding pipes;在所述第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的下端分别设置相应的溶液池,Corresponding solution pools are respectively disposed at lower ends of the first evaporator (1-4), the second evaporator (2-4), and the third evaporator (3-4),在所述溶液总池(7-12)内设有溶液换热器、并形成有浓溶液区及稀溶液区;a solution heat exchanger is disposed in the total solution pool (7-12), and a concentrated solution zone and a dilute solution zone are formed;所述溶液总池内、浓溶液区的浓溶液经由第一溶液泵(7-13)、管路分别输送至第一蒸发器(1-4)、第二蒸发器(2-4)及第三蒸发器(3-4)的喷淋管路,The concentrated solution in the total pool of the solution and the concentrated solution zone is respectively sent to the first evaporator (1-4), the second evaporator (2-4) and the third through the first solution pump (7-13) and the pipeline. The spray line of the evaporator (3-4),完成各自喷淋作业后,形成稀溶液,回落于各自的溶液池内,After completing the respective spraying operations, a dilute solution is formed and falls back into the respective solution pools.回落于溶液池内的稀溶液管路输送至溶液总池(7-12)的稀溶液区,The dilute solution line falling back into the solution tank is transported to the dilute solution zone of the solution pool (7-12).流进稀溶液区的的稀溶液通过第二溶液泵(7-14)输送进溶液换热器的液体管路进行换热析出水分、析出水分后的溶液流回浓溶液区,以此形成溶液循环。The dilute solution flowing into the dilute solution zone is transported into the liquid pipeline of the solution heat exchanger through the second solution pump (7-14) to carry out heat exchange to precipitate moisture, and the solution after the precipitated water flows back to the concentrated solution zone to form a solution. cycle.
- 根据权利要求3所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claim 3, wherein:所述溶液换热器的换热用热量由第一冷凝器(1-2)、第二冷凝器(2-2)及第三冷凝器(3-2)排出的冷媒共同提供。The heat exchange heat of the solution heat exchanger is supplied by the refrigerant discharged from the first condenser (1-2), the second condenser (2-2), and the third condenser (3-2).
- 根据权利要求2和4所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claims 2 and 4, characterized in that:在第一冷凝器(1-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成设置有电磁阀(1-7)的1号第一管路;Forming a first line No. 1 provided with a solenoid valve (1-7) between a refrigerant outlet of the first condenser (1-2) and a refrigerant inlet of the first restrictor (1-3);在第一冷凝器(1-2)的冷媒出口与第一换热器(4-2)的冷媒进口之间形成设置有电磁阀(1-8)的1号第二进管路,在第一换热器(4-2)的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第二出管路,所述1号第二进管路与1号第二出管路形成1号第二管路;A second inlet pipe No. 1 provided with a solenoid valve (1-8) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the first heat exchanger (4-2). A second outlet pipe of No. 1 is formed between the refrigerant outlet of a heat exchanger (4-2) and the refrigerant inlet of the first throttle (1-3), and the No. 1 second inlet pipe and No. 1 The second outlet line forms the second line of No. 1;在第一冷凝器(1-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(1-9)的1号第三进管路,在溶液换热器的冷媒出口与第一节流器(1-3)的冷媒进口之间形成1号第三出管路,所述1号第三进管路与1号第三出管路形成1号第三管路;A third inlet line No. 1 provided with a solenoid valve (1-9) is formed between the refrigerant outlet of the first condenser (1-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a third outlet line No. 1 with the refrigerant inlet of the first restrictor (1-3), and the third inlet line No. 1 and the third outlet line No. 1 form a third line No. 1;在第二冷凝器(2-2)的冷媒出口与第二节流器(2-3)的冷媒进口之间形成设置有电磁阀(2-7)的2号第一管路;Forming a first line No. 2 provided with a solenoid valve (2-7) between a refrigerant outlet of the second condenser (2-2) and a refrigerant inlet of the second throttle (2-3);在第二冷凝器(2-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(2-8)的2号第二进管路,在溶液换热器的冷媒出口与第二节流器(2-3)的冷媒进口之间形成2号第二出管路,所述2号第二进管路与2号第二出管路形成2号第二管路;A second inlet line No. 2 provided with a solenoid valve (2-8) is formed between the refrigerant outlet of the second condenser (2-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger Forming a second outlet line No. 2 with the refrigerant inlet of the second throttle (2-3), the second inlet line No. 2 and the second outlet line No. 2 forming a second line No. 2;在第三冷凝器(3-2)的冷媒出口与第三节流器(3-3)的冷媒进口之间形成设置有电磁阀(3-9)的3号第一管路;Forming a first line No. 3 provided with a solenoid valve (3-9) between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the third throttle (3-3);在第三冷凝器(3-2)的冷媒出口与溶液换热器的冷媒进口之间形成设置有电磁阀(3-10)的3号第二进管路,在溶液换热器的冷媒出口与第三节流器(3-3)的冷媒进口之间形成3号第二出管路,所述3号第二进管路与3号第二出管路形成3号第二管路。A second inlet line No. 3 provided with a solenoid valve (3-10) is formed between the refrigerant outlet of the third condenser (3-2) and the refrigerant inlet of the solution heat exchanger, and the refrigerant outlet of the solution heat exchanger A second outlet line No. 3 is formed between the refrigerant inlet of the third throttle (3-3), and the second inlet line No. 3 and the second outlet line No. 3 form a second line No. 3.
- 根据权利要求1所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claim 1, wherein:在第一冷凝器(1-2)与第一节流器(1-3)的管路上还设置第一干燥过滤器(1-6);a first drying filter (1-6) is further disposed on the pipeline of the first condenser (1-2) and the first restrictor (1-3);在第二冷凝器(2-2)与第二节流器(2-3)的管路上还设置第二干燥过滤器(2-6);a second drying filter (2-6) is further disposed on the pipeline of the second condenser (2-2) and the second throttle (2-3);在第三冷凝器(3-2)与第三节流器(3-3)的管路上还设置第三干燥过滤器(3-6)。A third drying filter (3-6) is also disposed on the piping of the third condenser (3-2) and the third throttle (3-3).
- 根据权利要求3所述的一种无霜、多变量耦合型热泵热风炉***,其特征在于:A frost-free, multivariable coupled heat pump hot blast stove system according to claim 3, wherein:设于各蒸发器下端的溶液池在空间上呈高于溶液总池的物理方式设置;The solution pools disposed at the lower ends of the evaporators are spatially disposed above the total pool of the solution;所述溶液池内的稀溶液通过自身的重力作用流入溶液总池的稀溶液区。The dilute solution in the solution tank flows into the dilute solution zone of the solution pool by its own gravity.
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CN107764036B (en) * | 2017-10-31 | 2019-11-05 | 江苏天舒电器有限公司 | A kind of frostless, Multivariable Coupling type heat pump hot blast stove system |
CN109405523A (en) * | 2018-10-10 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of grain heat-drying heat pump hot blast stove system |
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CN109442753B (en) * | 2018-12-05 | 2021-10-01 | 江苏天舒电器有限公司 | Control method of precise temperature control type heat pump hot blast stove |
CN116412123A (en) * | 2021-12-31 | 2023-07-11 | 广东美的白色家电技术创新中心有限公司 | Compressor, temperature control device, control method of temperature control device and related device |
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CN111578726A (en) * | 2020-05-21 | 2020-08-25 | 中南大学 | Device for treating dioxin by wall attachment effect induced air for electric arc furnace |
CN111578725A (en) * | 2020-05-21 | 2020-08-25 | 中南大学 | Device for rapidly cooling and treating dioxin for electric arc furnace and application thereof |
CN111578726B (en) * | 2020-05-21 | 2021-05-07 | 中南大学 | Device for treating dioxin by wall attachment effect induced air for electric arc furnace |
CN111578725B (en) * | 2020-05-21 | 2021-05-07 | 中南大学 | Device for rapidly cooling and treating dioxin for electric arc furnace and application thereof |
CN115235194A (en) * | 2022-04-27 | 2022-10-25 | 山东大学 | Multistage closed heat pump drying system and method |
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