CN102419031B - Superhigh-temperature heat pump device and use method - Google Patents
Superhigh-temperature heat pump device and use method Download PDFInfo
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- CN102419031B CN102419031B CN 201110378110 CN201110378110A CN102419031B CN 102419031 B CN102419031 B CN 102419031B CN 201110378110 CN201110378110 CN 201110378110 CN 201110378110 A CN201110378110 A CN 201110378110A CN 102419031 B CN102419031 B CN 102419031B
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Abstract
The invention relates to a superhigh-temperature heat pump and a use method. In a heat pump technology which is adopted at present, heating water outlet temperature is mostly at 45-85 DEG C, and the energy efficiency is low. The technical scheme of the invention is as follows: waste heat in industrial wastewater is recycled by a superhigh-temperature heat pump device, and then the heat energy is effectively transferred, so that the heating outlet water temperature reaches 90-120 DEG C. The superhigh-temperature heat pump comprises a compressor, an oil separator, a pressure maintenance valve, an oil cooler, a condenser, a stop valve, a drying filter, a liquid visual mirror, an electromagnetic valve, a flow regulating valve, a throttle device, an evaporator and a pressurization pump. The superhigh-temperature heat pump and the use method have the beneficial effects that the system has a compact integral structure, and the size is small; the energy efficiency ratio of the superhigh-temperature heat pump system can reach over 5.0; compared with the existing medium-high heat pump device, the energy can be saved by about 30%; and the waste heat can be discharged at the lower temperature after being utilized by the superhigh-temperature heat pump, so the heat pollution to the environment can be reduced, the greenhouse effect can be reduced, the fuel can be saved, and the carbon dioxide discharge amount can be reduced by about 60%.
Description
Technical field
The present invention relates to a kind of heat pump assembly in industrial heating system, particularly relate to a kind of superhigh temperature heat pump assembly and using method.
Background technology
China produces a large amount of industrial exhaust heat sewage in industrial processes, the temperature of these waste heat sewage is often higher, generally at 50 ℃～80 ℃ (the waste heat sewage that produced as food tobacco, fiber industry, leather and fur products, paper pulp processing, ceramic industry, electrolysis plant, petrochemical industry etc.).The waste heat of most of sewage is discharged in the atmosphere, not only causes thermal pollution but also waste resource.And these industrial users need 90 ℃～120 ℃ high-temperature-hot-water to heat in process of production in a large number.Corresponding using oil or gas or coal as fuel heating furnace needs to expend lot of energy in heating process, the energy utilization mode of this form is actual to be to adopt the burning high-grade energy to obtain low grade heat energy, and available energy efficient is lower.
At present usually the heat pump techniques that adopts remains the defective aspect following: 1) because common heat pump assembly, it heats leaving water temperature and maintains 45 ℃～60 ℃ mostly, can only satisfy general user's heating.2) high temperature overlapping machine in the employing, it heats leaving water temperature also can only be stabilized in 70 ℃～80 ℃, system architecture device complexity, owing to adopt the secondary compression, its Energy Efficiency Ratio is lower, the manufacturing cost height is uneconomical, and is not energy-conservation, can only satisfy fraction industry and heat.3) part adopts the moderate and high temperature heat device of the mixed working fluid of research and development, also can reach 75 ℃～90 ℃ though heat leaving water temperature, also can only satisfy the industry heating of fraction.
Usually will heat leaving water temperature and can reach 70 ℃～90 ℃ heat pump and be called moderate and high temperature heat, be called the superhigh temperature heat pump, this type of superhigh temperature heat pump just that the present invention discussed heating the stable heat pump that reaches 90 ℃～120 ℃ of leaving water temperature.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, provide that a kind of to satisfy simple for structure, compact, effective, stable superhigh temperature heat pump assembly and the using method that most of industrial users (as food tobacco, fiber industry, leather and fur products, paper pulp processing, ceramic industry, electrolysis plant, petrochemical industry etc.) use in heating system fully be purpose of the present invention.Technical solution of the present invention is the waste heat that will reclaim in the industrial processes generation large amount of sewage, and by the superhigh temperature heat pump assembly, through effective transfer of heat energy condensation temperature is risen to about 130 ℃, make to heat that leaving water temperature is stable to reach 90 ℃～120 ℃, satisfy most of industrial users' demand for heat.This application can replace fuel-firing gas-firing heating furnace device fully, not only can improve rate of energy, also can protect environment, avoids causing environmental pollution.
Technical scheme of the present invention is come specific implementation by following technical measures, a kind of superhigh temperature heat pump assembly that in industrial heating system, uses, it is characterized in that it is by compressor, oil eliminator, pressure is kept valve, oil cooler, condenser, stop valve, device for drying and filtering, liquid-sighting glass, magnetic valve, flow control valve, throttling arrangement, evaporimeter, booster water pump is formed, wherein: cold-producing medium and refrigeration oil mixture closed circuit are the exhaust outlet of compressor to be connected with intermediate conduit with the air inlet of oil eliminator communicate, the oil-out of oil eliminator communicates with the connection of the oil-in of oil cooler, the oil-out of oil cooler communicates with the lubricating system mouth connection of compressor, forms the closed circuit of a refrigeration oil; The cold-producing medium gas outlet of oil eliminator is kept valve by pressure and is entered the air inlet of condenser through pipeline, the cold-producing medium liquid outlet of condenser is by stop valve series connection device for drying and filtering and liquid-sighting glass, and pipeline is divided into two loops, a loop communicates with the middle hydraulic fluid spout connection of compressor, be provided with magnetic valve and flow control valve in the middle of the pipeline, another loop communicates with the inlet connection of evaporimeter, is provided with magnetic valve, flow control valve and throttling arrangement in the middle of the pipeline; The cold-producing medium gas outlet of evaporimeter communicates with the air entry connection of compressor through pipeline, forms the closed circuit of a cold-producing medium.Waste heat effluent cycle loop is the waste heat sewage of user side to be connected with the water inlet of evaporimeter through pipeline communicate, the delivery port of evaporimeter communicates through pipeline series connection booster water pump and with the water inlet connection of oil cooler, the delivery port of oil cooler communicates with the water inlet connection of evaporimeter through pipeline, forms the closed circuit of waste heat sewage cold-hot energy secondary exchange; The high-temperature-hot-water closed circuit of user side communicates with the intake-outlet connection of condenser respectively.
Superhigh temperature heat pump assembly of the present invention and using method are: the cold-producing medium of high pressure superheater and refrigeration oil gas phase mixture enter oil eliminator by the exhaust outlet of compressor and carry out Oil-gas Separation, the lubricating system that the overheated refrigeration oil of separating enters compressor after lowering the temperature through oil cooler, high temperature refrigerant gas by pressure keep valve stable enter condenser, by effective transfer of heat energy condensation temperature is risen to about 130 ℃, make the leaving water temperature of condenser reach 90 ℃～120 ℃ high-temperature-hot-waters continually and steadily, carry out heat exchange through high-temperature-hot-water, condensed liquid refrigerant enters the device for drying and filtering that needs in each pipeline loop through the liquid outlet of condenser and by stop valve, liquid-sighting glass, magnetic valve and flow control valve, enter the throttling arrangement throttling again, low-pressure gas-liquid cold-producing medium after the throttling carries out heat exchange through waste heat sewage in the evaporimeter, make superheated refrigerant gas enter the air entry of compressor by the gas outlet of evaporimeter, circulation realizes the process that superhigh temperature heats and so forth.
The invention has the beneficial effects as follows that this superhigh temperature heat pump-unit system is simple for structure, compact, volume reduces, and the Energy Efficiency Ratio of whole superhigh temperature heat pump can reach more than 5.0.Energy-saving effect is remarkable, than using oil or gas or coal as fuel reheating furnace energy-saving about 80%, than existing moderate and high temperature heat device energy-conservation about 30%.In addition, industrial exhaust heat can be with lower temperature discharging after the superhigh temperature heat pump utilizes, reduced the thermal pollution to environment, the using heat pump heat supply is compared with the using oil or gas or coal as fuel heating furnace reducing greenhouse effects, by fuel savings, its CO2 emissions can reduce about 60%.
Description of drawings
The system flow schematic diagram of Fig. 1, superhigh temperature heat pump assembly embodiment of the present invention.
The meaning that each Reference numeral is expressed as follows respectively in the accompanying drawing:
1----compressor, 2----oil eliminator, 3----pressure keep valve, 4----oil cooler,
5----condenser, 6----stop valve, 7----device for drying and filtering, 8----liquid-sighting glass,
9----magnetic valve, 10---flow control valve, 11----throttling arrangement, 12----evaporimeter,
The 13----booster water pump,
T----evaporimeter delivery port (35 ℃～45 ℃ in discharged at lower temperature water),
G----evaporimeter water inlet (50 ℃～80 ℃ in industrial exhaust heat sewage),
J----condenser delivery port (technology adds 90 ℃～120 ℃ of hot water),
W----condenser water inlet (70 ℃～90 ℃ in technology backwater).
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples:
Present embodiment is that a kind of heating capacity that is applied in is 2400kW, model is the superhigh temperature heat pump assembly of SYBLG-2500 industry heating in the screw rod high-temperature-hot-water unit, it is by compressor 1, oil eliminator 2, pressure is kept valve 3, oil cooler 4, condenser 5, stop valve 6, device for drying and filtering 7, liquid-sighting glass 8, magnetic valve 9, flow control valve 10, throttling arrangement 11, evaporimeter 12, booster water pump 13 compositions such as grade, each parts installs by the system flow that accompanying drawing 1 provides, wherein: cold-producing medium and refrigeration oil mixture closed circuit are the exhaust outlet of compressor 1 to be connected with intermediate conduit with the air inlet of the horizontal oil eliminator 2 of steel communicate, the oil-out of the horizontal oil eliminator 2 of steel communicates with the connection of the oil-in of board-like oil cooler 4, the oil-out of board-like oil cooler 4 communicates with the lubricating system mouth connection of compressor 1, forms the closed circuit of a refrigeration oil; The cold-producing medium gas outlet of the horizontal oil eliminator 2 of steel is kept valve 3 by pressure and is entered the air inlet of steel horizontal condenser 5 through pipeline, the cold-producing medium liquid outlet of steel horizontal condenser 5 is by stop valve 6 series connection device for drying and filtering 7 and liquid-sighting glass 8, and pipeline is divided into two loops, a loop communicates with the middle hydraulic fluid spout connection of compressor 1, be provided with magnetic valve 9 and flow control valve 10 in the middle of the pipeline, another loop communicates with the inlet connection of steel horizontal-type evaporator 12, is provided with magnetic valve 9, flow control valve 10 and throttling arrangement 11 in the middle of the pipeline; The cold-producing medium gas outlet of steel horizontal-type evaporator 12 communicates with the air entry connection of compressor 1 through pipeline, forms the closed circuit of a cold-producing medium.Waste heat effluent cycle loop is the waste heat sewage of user side to be connected with the water inlet G of steel horizontal-type evaporator 12 through pipeline communicate, the delivery port T of steel horizontal-type evaporator 12 communicates through pipeline series connection booster water pump 13 and with the water inlet connection of board-like oil cooler 4, the delivery port of board-like oil cooler 4 communicates with the water inlet G connection of steel horizontal-type evaporator 12 through pipeline, forms the closed circuit of waste heat sewage cold-hot energy secondary exchange; The high-temperature-hot-water closed circuit of user side communicates with the intake-outlet W and the J connection of steel horizontal condenser 5 respectively.
The using method of present embodiment is: the cold-producing medium of high pressure superheater and refrigeration oil gas phase mixture enter oil eliminator 2 by the exhaust outlet of compressor 1 and carry out Oil-gas Separation, the lubricating system that the overheated refrigeration oil of separating enters compressor 1 after lowering the temperature through oil cooler 4, high temperature refrigerant gas by pressure keep valve 3 stable enter condenser 5, by effective transfer of heat energy condensation temperature is risen to about 130 ℃, make the leaving water temperature of condenser 5 reach 90 ℃～120 ℃ high-temperature-hot-waters continually and steadily, carry out heat exchange through high-temperature-hot-water, condensed liquid refrigerant enters the device for drying and filtering 7 that needs in each pipeline loop through the liquid outlet of condenser 5 and by stop valve 6, liquid-sighting glass 8, magnetic valve 9 and flow control valve 10, enter throttling arrangement 11 throttlings again, low-pressure gas-liquid cold-producing medium after the throttling carries out heat exchange through waste heat sewage in the evaporimeter 12, make superheated refrigerant gas enter the air entry of compressor 1 by the gas outlet of evaporimeter 12, circulation realizes the process that superhigh temperature heats and so forth.
The present embodiment compact overall structure, volume reduces, and the Energy Efficiency Ratio of whole system can reach more than 5.0, and than using oil or gas or coal as fuel reheating furnace energy-saving about 80%, more energy-conservation about 30% than existing moderate and high temperature heat device, CO2 emissions can reduce about 60%.
Claims (2)
1. superhigh temperature heat pump assembly that in industrial heating system, uses, it is characterized in that it is by compressor, oil eliminator, pressure is kept valve, oil cooler, condenser, stop valve, device for drying and filtering, liquid-sighting glass, magnetic valve, flow control valve, throttling arrangement, evaporimeter and booster water pump are formed, wherein: cold-producing medium and refrigeration oil mixture closed circuit are the exhaust outlet of compressor to be connected with intermediate conduit with the air inlet of oil eliminator communicate, the oil-out of oil eliminator communicates with the connection of the oil-in of oil cooler, the oil-out of oil cooler communicates with the lubricating system mouth connection of compressor, forms the closed circuit of a refrigeration oil; The cold-producing medium gas outlet of oil eliminator is kept valve by pressure and is entered the air inlet of condenser through pipeline, the cold-producing medium liquid outlet of condenser is by stop valve series connection device for drying and filtering and liquid-sighting glass, and pipeline is divided into two loops, a loop communicates with the middle hydraulic fluid spout connection of compressor, be provided with magnetic valve and flow control valve in the middle of the pipeline, another loop communicates with the inlet connection of evaporimeter, is provided with magnetic valve, flow control valve and throttling arrangement in the middle of the pipeline; The cold-producing medium gas outlet of evaporimeter communicates with the air entry connection of compressor through pipeline, forms the closed circuit of a cold-producing medium; Waste heat effluent cycle loop is the waste heat sewage of user side to be connected with the water inlet of evaporimeter through pipeline communicate, the delivery port of evaporimeter communicates through pipeline series connection booster water pump and with the water inlet connection of oil cooler, the delivery port of oil cooler communicates with the water inlet connection of evaporimeter through pipeline, forms the closed circuit of waste heat sewage cold-hot energy secondary exchange; The high-temperature-hot-water closed circuit of user side communicates with the intake-outlet connection of condenser respectively.
2. an application rights requires the using method of 1 described superhigh temperature heat pump assembly, it is characterized in that the cold-producing medium of high pressure superheater and refrigeration oil gas phase mixture enter oil eliminator by the exhaust outlet of compressor and carry out Oil-gas Separation, the lubricating system that the overheated refrigeration oil of separating enters compressor after lowering the temperature through oil cooler, high temperature refrigerant gas by pressure keep valve stable enter condenser, by effective transfer of heat energy condensation temperature is risen to about 130 ℃, make the leaving water temperature of condenser reach 90 ℃～120 ℃ high-temperature-hot-waters continually and steadily, carry out heat exchange through high-temperature-hot-water, condensed liquid refrigerant enters the device for drying and filtering that needs in each pipeline loop through the liquid outlet of condenser and by stop valve, liquid-sighting glass, magnetic valve and flow control valve, enter the throttling arrangement throttling again, low-pressure gas-liquid cold-producing medium after the throttling carries out heat exchange through waste heat sewage in the evaporimeter, make superheated refrigerant gas enter the air entry of compressor by the gas outlet of evaporimeter, circulation realizes the process that superhigh temperature heats and so forth.
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| CN 201110378110 CN102419031B (en) | 2011-11-24 | 2011-11-24 | Superhigh-temperature heat pump device and use method |
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| CN 201110378110 CN102419031B (en) | 2011-11-24 | 2011-11-24 | Superhigh-temperature heat pump device and use method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102927718B (en) * | 2012-11-05 | 2014-11-26 | 北京工业大学 | Novel double-effect dual-temperature high temperature heat pump device |
| CN104110914A (en) * | 2014-07-08 | 2014-10-22 | 北京工业大学 | Piston-type high-temperature heat pump device for waste heat recovery |
| SI25059A (en) * | 2015-09-11 | 2017-03-31 | Univerza V Mariboru | A method and a device for utilization of low-temperature sources of gas boilers with high-temperature heat pump by water/water concept |
| CN107246749B (en) * | 2017-07-08 | 2023-06-30 | 山东宏力热泵能源股份有限公司 | Industrial ultra-temperature heat pump unit |
| CN110186189A (en) * | 2019-07-02 | 2019-08-30 | 珠海冰恬环境科技有限公司 | A kind of residual heat type combined high temperature heat-pump hot-water energy conserving system and its control method |
| CN110411066B (en) * | 2019-08-01 | 2021-07-27 | 珠海格力电器股份有限公司 | Oil cooling system of water chilling unit and control method thereof |
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| CN2562142Y (en) * | 2002-08-15 | 2003-07-23 | 陈成 | Heat pump central heat suppliers |
| CN2615599Y (en) * | 2003-02-14 | 2004-05-12 | 清华同方人工环境有限公司 | Low-temperature air-cooling heat pump machine set |
| CN202382481U (en) * | 2011-11-24 | 2012-08-15 | 上海环球制冷设备有限公司 | Super-high temperature heat pump device |
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