CN104930747A - Second-class absorption heat pump - Google Patents
Second-class absorption heat pump Download PDFInfo
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- CN104930747A CN104930747A CN201510400132.8A CN201510400132A CN104930747A CN 104930747 A CN104930747 A CN 104930747A CN 201510400132 A CN201510400132 A CN 201510400132A CN 104930747 A CN104930747 A CN 104930747A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 71
- 239000006096 absorbing agent Substances 0.000 claims abstract description 41
- 239000006200 vaporizer Substances 0.000 claims description 55
- 239000002918 waste heat Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 16
- 239000007788 liquid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940059936 lithium bromide Drugs 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/197—Pressures of the evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
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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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a second-class absorption heat pump. The second-class absorption heat pump comprises a generator, a condenser, a high-temperature absorber, a high-temperature evaporator, a low-temperature absorber and a low-temperature evaporator. Part of media inside heat exchanging tubes of the low-temperature absorber are conveyed to the high-temperature evaporator through a pipeline after heat exchanging is performed between the media and solution, and used for making steam needed by the high-temperature absorber in a second-class temperature rising system. The other part of media are conveyed to the exterior of the unit and used for making or directly serving as external heat sources. The heat pump can make a low-grade heat source and a high-grade heat source at the same time, namely, the heat pump, a single-stage second-class heat pump and a second-stage second-class heat pump are integrated, the occupied area of the heat pump is small, the installing space of the heat pump is greatly saved, in this way, the second-class absorption heat pump is easily applied to an environment where installing is limited, and the application range of the second-class heat pump unit is enlarged. Meanwhile, a user can perform single-stage and second-stage selection according to technology requirements and working conditions, in this way, the heat pump operates under the optimal working condition, and the optimal energy-saving effect is achieved.
Description
Technical field
The present invention relates to technical field of heat exchange, particularly a kind of second-kind absorption-type heat pump.
Background technology
Second-kind absorption-type heat pump is warming heat pump, its utilize a large amount of in the middle of used heat of grade and the thermal potential difference of low-temperature cooling water produce the heat of the few but temperature of heat higher than middle grade used heat, thus meet the high-grade heat demand of user.
At present, second-kind absorption-type heat pump mainly contains two kinds: single-stage intensification second-kind absorption-type heat pump (hereinafter referred to as single-stage intensification heat pump) and secondary intensification second-kind absorption-type heat pump (hereinafter referred to as secondary intensification heat pump).Single-stage intensification second-kind absorption-type heat pump, the high-grade heating agent produced and the temperature rise amplitude of low-grade heat source smaller, but the thermal efficiency is high; The high-grade heating agent of secondary intensification second-kind absorption-type heat pump and the temperature rise amplitude of low-grade heat source high, but the thermal efficiency is lower.
Described as can be seen from above, the heat medium temperature that secondary intensification heat pump is produced than single-stage intensification heat pump is high, and the difference of two heat pumps is: secondary intensification heat pump increases high temperature absorber, high-temperature evaporator on the basis of single-stage intensification heat pump.
Single-stage intensification heat pump mainly comprises generator, condenser, absorber, evaporimeter, heat exchanger, secondary intensification heat pump also comprises high temperature absorber, high-temperature evaporator, high/low temperature heat exchanger further, the high temperature heating agent that single-stage intensification heat pump is produced is supplied to high-temperature evaporator, produces more high-grade heating agent by high temperature absorber.
At present, for the occasion needing high-grade heating agent and low-grade heating agent simultaneously, general needs arrange separately single-stage intensification heat pump and secondary intensification heat pump, utilize two kinds of heat pumps to produce the heating agent of different grade respectively, use for user.
For the occasion of multiple quality thermal source demand, the installing space needed for unit installing two types is just corresponding larger, not only increases the use cost of unit, and greatly limit the application of second-kind absorption-type heat pump in the limited occasion of installing space.
Therefore, how to provide a kind of second-kind absorption-type heat pump, this heat pump can reduce the use cost of multiple quality thermal source demand occasion, and machine packet size is relatively little, expanding the range of application of second-kind absorption-type heat pump, is those skilled in that art's technical problems urgently to be resolved hurrily.
Summary of the invention
Object of the present invention is for providing second-kind absorption-type heat pump, and this heat pump can produce more low-quality, more high-quality heating agent simultaneously, and unit floor space is smaller, greatly reduces the use cost of source pump, and expands the range of application of second-kind absorption-type heat pump.
For solving the problems of the technologies described above, the invention provides a kind of second-kind absorption-type heat pump, comprising generator, condenser, high temperature absorber, high-temperature evaporator, low temperature absorption device, cryogenic vaporizer; Medium in described low temperature absorption device heat exchanger tube and solution heat exchange rear section by Pipeline transport to described high-temperature evaporator, for producing the steam described in secondary temperature elevation system needed for high temperature absorber; Another part is delivered to unit outside, for produce or directly as outside thermal source.
Single-stage is used with prior art, the second-kind absorption-type heat pump of secondary two type is compared, second-kind absorption-type heat pump provided herein can produce low-grade heat source and high-grade thermal source simultaneously, the i.e. warm single-stage of heat pump provided in this article, secondary two class heat pump is integrated, and the module of second-kind absorption-type heat pump is herein substantially identical with the module of prior art secondary second-kind absorption-type heat pump, single-stage is set with existing, secondary two class heat pump is compared, the floor space of heat pump is smaller herein, greatly save the installing space of heat pump, reduce initial cost simultaneously.
In addition, the volume of source pump is smaller herein, is conducive to being applied in installation environment constrained environment, expands the range of application of two class source pump.
Optionally, the heat exchanger tube of described low temperature absorption device inside has the two groups: first set of heat exchange tubes and the second set of heat exchange tubes, medium in described first set of heat exchange tubes and described high-temperature evaporator form circulation line, and described first set of heat exchange tubes output medium is used for producing steam needed for described high temperature absorber;
The import of described second set of heat exchange tubes is communicated with outside input thermal source and outside output pipe respectively with outlet.
Optionally, the taphole of described generator is also further by the solution inlet of low temperature absorption device described in pipeline connection.
Optionally, also comprise with lower component:
Sensor, for detecting temperature or pressure signal that described low temperature absorption device heat exchanger tube exports outside to or exports described high-temperature evaporator pipeline to;
First flow control valve, is arranged at the solution inlet of described high temperature absorber;
Second control valve, is arranged at the taphole of described generator and the entrance connecting pipeline of described low temperature absorption device;
Controller, the temperature detected according to described sensor or pressure signal, control the aperture of described first flow control valve and described second control valve.
Optionally, also comprise cryogenic heat exchanger and high-temperature heat-exchanging, described first flow control valve is located at the taphole of described high-temperature heat-exchanging and the solution inlet connecting pipeline of described high temperature absorber; First outlet of described cryogenic heat exchanger is also communicated with the second outlet of described high-temperature heat-exchanging further, and described second control valve is located at the first outlet of described cryogenic heat exchanger and the second outlet connecting pipeline between the two of described high-temperature heat-exchanging.
In addition, present invention also offers a kind of second-kind absorption-type heat pump, in described source pump, be furnished with generator, condenser, high temperature absorber, high-temperature evaporator, low temperature absorption device and cryogenic vaporizer; Described low temperature absorption device comprises the first low temperature absorption device and the second low temperature absorption device of isolation relatively, and described cryogenic vaporizer comprises the first cryogenic vaporizer and second cryogenic vaporizer of isolation relatively;
The outlet of described generator is communicated with the solution inlet port of described high temperature absorber with the solution inlet port of described second low temperature absorption device simultaneously; Described generator, described second low temperature absorption device, described second cryogenic vaporizer form single-stage heat pump;
Described generator, described first low temperature absorption device, described first cryogenic vaporizer, described high-temperature evaporator, described high temperature absorber form secondary heat pump.
Optionally, described generator comprises the first mutually isolated cavity and the second cavity, the taphole of the second cavity of described generator is communicated with the solution inlet port of described second low temperature absorption device, and the solution inlet of the second cavity of described generator is communicated with the taphole of described second low temperature absorption device;
The taphole of the first cavity of described generator is communicated with the solution inlet port of described high temperature absorber, and the taphole of described first low temperature absorption device is communicated with the solution inlet of the first cavity of described generator.
Optionally, described condenser comprises the first mutually isolated cavity and the second cavity, and the first cavity of described condenser is communicated with the first cavity of described generator, and the second cavity of described condenser is communicated with the second cavity of described generator.
Optionally, the condensate pipe series connection in the first cavity of described condenser, the second cavity, two ends connect extraneous cooling water inlet pipe and cooling water outlet pipe respectively.
Optionally, the condensed water that the first cavity of described condenser produces supplies described high-temperature evaporator and described first cryogenic vaporizer by same pumping member simultaneously.
Optionally, the waste heat pipe in described first cryogenic vaporizer and the waste heat pipe in described second cryogenic vaporizer are connected or are connected in series external waste heat pipeline.
Optionally, the in parallel or series connection of medium in the heat exchanger tube in the heat exchanger tube in the first cavity of described generator and the second cavity of described generator.
Optionally, the heat exchanger tube series connection of the waste heat pipe in described first cryogenic vaporizer and the first cavity of described generator, and the heat exchanger tube other end of the waste heat pipe other end in described first cryogenic vaporizer and the first cavity of described generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube;
The heat exchanger tube series connection of the waste heat pipe in described second cryogenic vaporizer and the second cavity of described generator, and the heat exchanger tube other end of the waste heat pipe other end in described second cryogenic vaporizer and the second cavity of described generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of second-kind absorption-type heat pump in a kind of detailed description of the invention of the present invention;
Fig. 2 is the fundamental diagram of second-kind absorption-type heat pump in the another kind of detailed description of the invention of the present invention.
Wherein, the one-to-one relationship in Fig. 1 to Fig. 2 between component names and Reference numeral is as follows:
Generator 1, condenser 2, low temperature absorption device 3, first set of heat exchange tubes 301, second set of heat exchange tubes 302, cryogenic vaporizer 4, high-temperature evaporator 5, high temperature absorber 6, gas-liquid separator 7, high-temperature heat-exchanging 8, cryogenic heat exchanger 9, pump 10,20,30, first flow control valve 13, second control valve 14, sensor 15;
First cavity 21 of the first cavity 11 of generator, the second cavity 12 of generator, condenser, the second cavity 22, first cryogenic vaporizer 31, second cryogenic vaporizer 32, first low temperature absorption device 41, second low temperature absorption device 42, second gas-liquid separator 50 of condenser, high temperature absorber 70, high-temperature evaporator 60, first gas-liquid separator 80.
Detailed description of the invention
Core of the present invention is for providing a kind of second-kind absorption-type heat pump, this heat pump can produce higher quality, more high-quality heating agent simultaneously, unit floor space is smaller, greatly reduces the use cost of source pump, and expands the range of application of second-kind absorption-type heat pump.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the fundamental diagram of second-kind absorption-type heat pump in the first specific embodiment of the present invention.
Second-kind absorption-type heat pump is divided into two classes: single-stage intensification second-kind absorption-type heat pump (hereinafter referred to as single-stage intensification heat pump) and secondary intensification second-kind absorption-type heat pump (hereinafter referred to as secondary intensification heat pump), single-stage intensification heat pump mainly comprises generator, condenser, low temperature absorption device, cryogenic vaporizer, for producing comparatively high-grade thermal source.Secondary intensification heat pump is on the basis of single-stage intensification heat pump, increase high temperature absorber, high-temperature evaporator, and thermal source based on the comparatively high-grade thermal source namely utilizing single-stage intensification heat pump to produce, produces the high-grade heating agent that temperature is higher further.The operation principle of single-stage intensification heat pump and secondary intensification heat pump does not describe in detail at this, can with reference to prior art.
There is provided herein a kind of second-kind absorption-type heat pump, comprise generator 1, condenser 2, high temperature absorber 6, high-temperature evaporator 5, low temperature absorption device 3, cryogenic vaporizer 4, that is, the critical piece of this second-kind absorption-type heat pump is identical with the critical piece of secondary intensification heat pump.In addition, medium (water or other liquid mediums) in low temperature absorption device 3 heat exchanger tube of second-kind absorption-type heat pump provided herein and solution heat exchange rear section by Pipeline transport to high-temperature evaporator 5, for producing the steam in secondary temperature elevation system needed for high temperature absorber 6; Another part is delivered to unit outside, for produce or directly as outside thermal source.
When the comparatively high-grade thermal source needed for user is hot water, export outside medium to from low temperature absorption device 3 heat exchanger tube can directly use as thermal source, when the comparatively high-grade thermal source that user uses is for steam, exports outside medium to from low temperature absorption device 3 heat exchanger tube and need be separated through gas-liquid separator 7 and indirectly use as thermal source.
That is, in second-kind absorption-type heat pump herein, generator 1, condenser 2, high temperature absorber 6, high-temperature evaporator 5, low temperature absorption device 3, cryogenic vaporizer 4 form secondary intensification solution recycle system, medium in low temperature absorption device 3 heat exchanger tube divides two parts to export, wherein a part exports high-temperature evaporator 5 to, as the basic thermal source of secondary intensification high-grade thermal source.Certain media in low temperature absorption device 3 heat exchanger tube is directly delivered to outside, directly as outside thermal source (hot water) or produce outside thermal source (steam).
Single-stage is used with prior art, the second-kind absorption-type heat pump of secondary two type is compared, second-kind absorption-type heat pump provided herein can produce low-grade heat source and high-grade thermal source simultaneously, the i.e. warm single-stage of heat pump provided in this article, secondary two class heat pump is integrated, and the module of second-kind absorption-type heat pump is herein substantially identical with the module of prior art secondary second-kind absorption-type heat pump, single-stage is set with existing, secondary two class heat pump is compared, the floor space of heat pump is smaller herein, greatly save the installing space of heat pump, reduce use cost.
In addition, the volume of source pump is smaller herein, is conducive to being applied in installation environment constrained environment, expands the range of application of two class source pump.
Can arrange one group of heat exchanger tube in low temperature absorption device 3, the inlet communication of heat exchanger tube, from high-temperature evaporator 5, exports and is communicated with high-temperature evaporator 5 and unit exterior line, to export thermal source respectively by pipe fitting.Certainly, the heat exchanger tube of low temperature absorption device 3 inside also can arrange two groups, specifically arranges see following description.
In a kind of detailed description of the invention, the heat exchanger tube of low temperature absorption device 3 inside has the two groups: first set of heat exchange tubes 301 and the second set of heat exchange tubes 302, medium in first set of heat exchange tubes 301 and high-temperature evaporator 5 form circulation line, first heat exchanger tube output medium is used for producing steam needed for high temperature absorber 6, the i.e. import of the first heat exchanger tube and the outlet of high-temperature evaporator 5, the outlet of the first heat exchanger tube and the inlet communication of high-temperature evaporator 5.The import of the second set of heat exchange tubes 302 is communicated with outside input thermal source and outside output pipe respectively with outlet, and the second set of heat exchange tubes 302 output medium is used for producing outside thermal source.This input thermal source can be that to input thermal source with the outside of high temperature absorber 6 identical, can certainly be different; Outside output pipe can be hot water line, also can for being provided with the steam pipework of gas-liquid separator 7.
In above-described embodiment, second absorber inside arranges the first relatively independent set of heat exchange tubes 301 and the second set of heat exchange tubes 302 provides secondary base thermal source and outside comparatively high-grade thermal source respectively, circulation is between the two independent of each other mutually, is conducive to the stability of unit work.
In order to improve the heat exchange efficiency of unit further, the taphole of generator 1 is also further by the solution inlet of pipeline connection low temperature absorption device 3, and the amount of solution entering low temperature absorption device 3 like this increases relatively, can increase the heat exchange amount of low temperature absorption device 3.
In order to improve the Automated condtrol of unit, can also arrange as follows.
In a kind of concrete embodiment, second-kind absorption-type heat pump can also comprise with lower component: sensor 15, first flow control valve 13, second control valve 14, controller, and sensor 15 is for detecting described low temperature absorption device 3 heat exchanger tube and export outside to or export to temperature or the pressure signal of described high-temperature evaporator 5 pipeline; Namely sensor 15 can be temperature sensor, also can be pressure sensor, and this sensor 15 can be installed on the pipeline that low temperature absorption device 3 heat exchanger tube exports secondary base thermal source, can also be installed on low temperature absorption device 3 heat exchanger tube and export comparatively high-grade heating agent pipeline.
First flow control valve 13 is arranged at the solution inlet of described high temperature absorber 6; Second control valve 14 is arranged at the taphole of described generator 1 and the entrance connecting pipeline of described low temperature absorption device 3.
Controller, the temperature detected according to sensor 15 or pressure signal, control the aperture of first flow control valve 13 and second control valve 14.
Can preset controling parameters in this embodiment middle controller, the detection signal that controller receiving sensor 15 sends, controller judges the temperature that sensor 15 detects or pressure signal, judge whether the low-grade heating agent of output or high-grade heating agent meet current demand, and then controller can send control command to first flow control valve 13 and second control valve 14, to regulate the aperture of first flow control valve 13 and second control valve 14, to meet the requirement of producing high-grade and low-grade heat source, namely can according to the demand of client, the output of the high low-grade heat source that free adjustment is produced.
In a kind of specific embodiment, second-kind absorption-type heat pump provided herein can also comprise cryogenic heat exchanger 9 and high-temperature heat-exchanging 8, and first flow control valve 13 is located at the taphole of high-temperature heat-exchanging 8 and the solution inlet connecting pipeline of high temperature absorber 6; First outlet B1 of cryogenic heat exchanger 9 is also communicated with the second outlet of high-temperature heat-exchanging 8 further, and second control valve 14 is located at the first outlet B1 of cryogenic heat exchanger 9 and the second outlet connecting pipeline between the two of high-temperature heat-exchanging 8.
In order to illustrated clear, only marked out the definition of each mouth of cryogenic heat exchanger in Fig. 1, wherein, A1, A2, B1, B2 are respectively the first import, the second import, the first outlet, the second outlet; The name of each mouth of high-temperature heat-exchanging can with reference to the definition of each mouth of cryogenic heat exchanger.
In this embodiment, generator solution flows into low temperature absorption device after cryogenic heat exchanger 9, can improve the heat exchange efficiency of unit.
Certainly, the mode of communicating of the solution inlet of generator 1 taphole and low temperature absorption device 3 is not limited to above description, as long as can realize above-mentioned technique effect.
Except above description, additionally provide the detailed description of the invention that another kind of same heat pump realizes single-stage, secondary runs simultaneously herein, specifically describe as follows.
Please refer to Fig. 2, Fig. 2 is the fundamental diagram of second-kind absorption-type heat pump in the another kind of specific embodiment of the present invention.
In another kind of specific embodiment, in second-kind absorption-type heat pump unit, be furnished with generator, condenser, high temperature absorber 70, high-temperature evaporator 60, low temperature absorption device and cryogenic vaporizer; Low temperature absorption device comprises the first low temperature absorption device 41 and the second low temperature absorption device 42 of isolation relatively, first low temperature absorption device 41 and the second low temperature absorption device 42 can be arranged at same box house, cryogenic vaporizer comprises the first cryogenic vaporizer 31 of relatively isolation and the second cryogenic vaporizer 32, first cryogenic vaporizer 31 and the second cryogenic vaporizer 32 can be arranged at same box house; The outlet of generator is communicated with the solution inlet port of high temperature absorber 70 with the solution inlet port of the second low temperature absorption device 42 simultaneously; Generator, the second low temperature absorption device 42, second cryogenic vaporizer 32 form single-stage heat pump; Generator, the first low temperature absorption device 41, first cryogenic vaporizer 31, high-temperature evaporator 60, high temperature absorber 70 form secondary heat pump.The operation principle of single-stage heat pump and secondary heat pump does not also describe in detail at this.
In this embodiment, by arranging the structure of source pump internal module, same heat pump is integrated with single-stage circulation module and secondary cycle module, to realize single-stage circulation and secondary cycle, to realize exporting compared with while high-grade thermal source and high-grade thermal source, arrange compared with independent single-stage, secondary two class heat pump with existing, the floor space of heat pump is smaller herein, greatly save the installing space of heat pump, reduce use cost.
In order to reduce the mutual interference between the inner single-stage of same unit, secondary cycle as far as possible, improve the efficiency producing thermal source at different levels, can also following setting be carried out.
Further, the box house of generator can comprise the first mutually isolated cavity 11 and the second cavity 12, the taphole of the second cavity 12 of generator is communicated with the solution inlet port of the second low temperature absorption device 42, and the solution inlet of the second cavity 12 of generator is communicated with the taphole of the second low temperature absorption device 42; The taphole of the first cavity 11 of generator is communicated with the solution inlet port of high temperature absorber 70, and the taphole of the first low temperature absorption device 41 is communicated with the solution inlet of the first cavity 11 of generator.
In like manner, the box house of condenser comprises the first mutually isolated cavity 21 and the second cavity 22, and the first cavity 21 of condenser is communicated with the first cavity 11 of generator, and the second cavity 22 of condenser is communicated with the second cavity 12 of generator.This arranges the operating efficiency that can improve single-stage, secondary further.
Particularly, the condensate pipe series connection in the first cavity 21, second cavity 22 of condenser, two ends connect extraneous cooling water inlet pipe and cooling water outlet pipe respectively.Like this under the prerequisite not reducing single-stage, secondary work efficiency, internal system pipeline can be simplified and arrange, be convenient to units' installation and maintenance.
In order to simplify unit connecting line further, the condensed water that the first cavity 21 of condenser produces can also supply high-temperature evaporator 60 and the first cryogenic vaporizer 31 by same pumping member simultaneously.Certainly, the distributing pipe being communicated with high-temperature evaporator 60 and the first cryogenic vaporizer 31 can also arrange flow valve, in order to the flow of control flow check through high-temperature evaporator 60 and the first cryogenic vaporizer 31.
Further, the waste heat pipe in the waste heat pipe in the first cryogenic vaporizer 31 and the second cryogenic vaporizer 32 can also be connected, and extraneous waste heat flows into from wherein one end of two waste heat pipes of series connection, flows out from the other end.So-called waste heat pipe refers to and the internal heat exchange tubes that extraneous waste heat source is communicated with.Certainly, the waste heat pipe in the waste heat pipe in the first cryogenic vaporizer 31 and the second cryogenic vaporizer 32 can also be in parallel, and namely both waste heat pipe import parallel joins are on extraneous waste heat, non-interference, and work does not affect.
On the basis of above-described embodiment, heat exchanger tube in heat exchanger tube in first cavity 11 of generator and the second cavity 12 of generator also can be connected, one end of two heat exchanger tubes of series connection is communicated with the waste heat outflow end of cryogenic vaporizer, and the other end is communicated with outside remaining hot outlet tube.Certainly, the heat exchanger tube in the heat exchanger tube in the first cavity 11 of generator and the second cavity 12 of generator also can be in parallel.
Certainly, between cryogenic vaporizer, generator, the pipeline of remaining hot water is not limited to foregoing description, can also arrange separately, such as, arrange in the following manner.
In another kind of embodiment, the heat exchanger tube series connection of the first cavity 11 of the waste heat pipe in the first cryogenic vaporizer 31 and generator, and the heat exchanger tube other end of the waste heat pipe other end in the first cryogenic vaporizer 31 and the first cavity 11 of generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube;
The heat exchanger tube series connection of the second cavity 12 of the waste heat pipe in the second cryogenic vaporizer 32 and generator, and the heat exchanger tube other end of the waste heat pipe other end in the second cryogenic vaporizer 32 and the second cavity 12 of generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube.
Like this, can according to concrete state of cyclic operation, regulate the remaining hot water entering corresponding system respectively, such as according to the air pressure inside P1 of the second gas-liquid separator 50, the state (aperture) of the flow valve V3 that flow valve V1 and waste heat source capsule are installed on steam regulation efferent duct, in like manner, can according to the air pressure inside P2 of the first gas-liquid separator 80 in level two, the state of the flow valve V4 that flow valve V3 and waste heat source capsule are installed on steam regulation efferent duct.Single-stage, level two are relatively independent, all can reach higher and produce heating agent efficiency.
Certainly normally running to maintain system, in above each embodiment, can also pumping member being set, if the pump 10 in Fig. 1, pump 20, pump 30 are to realize the pumping of solution and condensed water.
It should be noted that, illustrate only and produce the schematic diagram that heating agent is steam in Fig. 1 and Fig. 2, do not provide and produce the operation principle that heating agent is hot water, the principle above technical scheme being applied to hot water preparing is identical with above, does not repeat.
Circulation solution in above-mentioned heat pump can be lithium-bromide solution, can be also other solution, not do too much introduction at this, can with reference to prior art.
Heat exchanger in the various embodiments described above can be plate type heat exchanger, can be also other forms of heat exchanger, as long as can realize above-mentioned technique effect.
Above a kind of second-kind absorption-type heat pump provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (13)
1. a second-kind absorption-type heat pump, comprises generator (1), condenser (2), high temperature absorber (6), high-temperature evaporator (5), low temperature absorption device (3), cryogenic vaporizer (4); It is characterized in that, the medium in described low temperature absorption device (3) heat exchanger tube and solution heat exchange rear section by Pipeline transport to described high-temperature evaporator (5), for producing the steam needed for high temperature absorber described in secondary temperature elevation system (6); Another part is delivered to unit outside, for produce or directly as outside thermal source.
2. second-kind absorption-type heat pump as claimed in claim 1, it is characterized in that, the heat exchanger tube that described low temperature absorption device (3) is inner has the two groups: first set of heat exchange tubes (301) and the second set of heat exchange tubes (302), medium in described first set of heat exchange tubes (301) and described high-temperature evaporator (5) form circulation line, and described first set of heat exchange tubes (301) output medium is used for producing the required steam of described high temperature absorber (6);
The import of described second set of heat exchange tubes (302) is communicated with outside input thermal source and outside output pipe respectively with outlet.
3. second-kind absorption-type heat pump as claimed in claim 1 or 2, it is characterized in that, the taphole of described generator (1) is also further by the solution inlet of low temperature absorption device (3) described in pipeline connection.
4. second-kind absorption-type heat pump as claimed in claim 3, is characterized in that, also comprise with lower component:
Sensor, exports outside to for detecting described low temperature absorption device (3) heat exchanger tube or exports temperature or the pressure signal of described high-temperature evaporator (5) pipeline to;
First flow control valve (13), is arranged at the solution inlet of described high temperature absorber (6);
Second control valve (14), is arranged at the taphole of described generator (1) and the entrance connecting pipeline of described low temperature absorption device (3);
Controller, the temperature detected according to described sensor or pressure signal, control the aperture of described first flow control valve (13) and described second control valve (14).
5. second-kind absorption-type heat pump as claimed in claim 4, it is characterized in that, also comprise cryogenic heat exchanger (9) and high-temperature heat-exchanging (8), described first flow control valve (13) is located at the taphole of described high-temperature heat-exchanging (8) and the solution inlet connecting pipeline of described high temperature absorber (6); First outlet of described cryogenic heat exchanger (9) is also communicated with the second outlet of described high-temperature heat-exchanging (8) further, and described second control valve (14) is located at the first outlet of described cryogenic heat exchanger (9) and the second outlet connecting pipeline between the two of described high-temperature heat-exchanging (8).
6. a second-kind absorption-type heat pump, is characterized in that, is furnished with generator, condenser, high temperature absorber (70), high-temperature evaporator (60), low temperature absorption device and cryogenic vaporizer in described source pump; Described low temperature absorption device comprises the first low temperature absorption device (41) and the second low temperature absorption device (42) of isolation relatively, and described cryogenic vaporizer comprises the first cryogenic vaporizer (31) and second cryogenic vaporizer (32) of isolation relatively;
The outlet of described generator is communicated with the solution inlet port of described high temperature absorber (70) with the solution inlet port of described second low temperature absorption device (42) simultaneously; Described generator, described second low temperature absorption device (42), described second cryogenic vaporizer (32) form single-stage heat pump;
Described generator, described first low temperature absorption device (41), described first cryogenic vaporizer (31), described high-temperature evaporator (60), described high temperature absorber (70) form secondary heat pump.
7. second-kind absorption-type heat pump as claimed in claim 6, it is characterized in that, described generator comprises mutually isolated the first cavity (11) and the second cavity (12), the taphole of second cavity (12) of described generator is communicated with the solution inlet port of described second low temperature absorption device (42), and the solution inlet of second cavity (12) of described generator is communicated with the taphole of described second low temperature absorption device (42);
The taphole of first cavity (11) of described generator is communicated with the solution inlet port of described high temperature absorber (70), and the taphole of described first low temperature absorption device (41) is communicated with the solution inlet of first cavity (11) of described generator.
8. second-kind absorption-type heat pump as claimed in claim 7, it is characterized in that, described condenser comprises mutually isolated the first cavity (21) and the second cavity (22), first cavity (21) of described condenser is communicated with first cavity (11) of described generator, and second cavity (22) of described condenser is communicated with second cavity (12) of described generator.
9. second-kind absorption-type heat pump as claimed in claim 8, is characterized in that, the condensate pipe series connection of (22) in first cavity (21) of described condenser, the second cavity, two ends connect extraneous cooling water inlet pipe and cooling water outlet pipe respectively.
10. second-kind absorption-type heat pump as claimed in claim 8, it is characterized in that, the condensed water that first cavity (21) of described condenser produces supplies described high-temperature evaporator (60) and described first cryogenic vaporizer (31) by same pumping member simultaneously.
11. second-kind absorption-type heat pumps as described in any one of claim 7 to 8, is characterized in that, the waste heat pipe in described first cryogenic vaporizer (31) and the waste heat pipe in described second cryogenic vaporizer (32) in parallel or be connected in series extraneous waste heat pipeline.
12. second-kind absorption-type heat pumps as claimed in claim 11, is characterized in that, the in parallel or series connection of medium in the heat exchanger tube in the heat exchanger tube in first cavity (11) of described generator and second cavity (12) of described generator.
13. second-kind absorption-type heat pumps as described in any one of claim 7 to 8, it is characterized in that, the heat exchanger tube series connection of the waste heat pipe in described first cryogenic vaporizer (31) and first cavity (11) of described generator, and the heat exchanger tube other end of the waste heat pipe other end in described first cryogenic vaporizer (31) and first cavity (11) of described generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube;
The heat exchanger tube series connection of the waste heat pipe in described second cryogenic vaporizer (32) and second cavity (12) of described generator, and the heat exchanger tube other end of the waste heat pipe other end in described second cryogenic vaporizer (32) and second cavity (12) of described generator wherein one is communicated with outside waste heat inlet pipe, another one is communicated with outside remaining hot outlet tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422400.1A CN108050724B (en) | 2015-07-09 | 2015-07-09 | Second-class absorption heat pump |
| CN201510400132.8A CN104930747B (en) | 2015-07-09 | 2015-07-09 | A kind of second-kind absorption-type heat pump |
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| CN201510400132.8A CN104930747B (en) | 2015-07-09 | 2015-07-09 | A kind of second-kind absorption-type heat pump |
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| CN201711422400.1A Division CN108050724B (en) | 2015-07-09 | 2015-07-09 | Second-class absorption heat pump |
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| CN104930747B CN104930747B (en) | 2018-02-23 |
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| CN201510400132.8A Active CN104930747B (en) | 2015-07-09 | 2015-07-09 | A kind of second-kind absorption-type heat pump |
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Cited By (3)
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| CN109631391A (en) * | 2019-01-16 | 2019-04-16 | 浙江力巨热能设备有限公司 | Twin-stage absorption heat pump built in a kind of boiler |
| CN110986423A (en) * | 2019-12-23 | 2020-04-10 | 泰能天然气有限公司 | High-efficient cooling water set |
| CN114111106A (en) * | 2021-12-08 | 2022-03-01 | 荏原冷热系统（中国）有限公司 | Control method and second-class absorption heat pump |
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| CN110986423A (en) * | 2019-12-23 | 2020-04-10 | 泰能天然气有限公司 | High-efficient cooling water set |
| CN114111106A (en) * | 2021-12-08 | 2022-03-01 | 荏原冷热系统（中国）有限公司 | Control method and second-class absorption heat pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930747B (en) | 2018-02-23 |
| CN108050724B (en) | 2020-06-30 |
| CN108050724A (en) | 2018-05-18 |
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Denomination of invention: A Type II Absorption Heat Pump Effective date of registration: 20230411 Granted publication date: 20180223 Pledgee: Mitsubishi UFJ Bank (China) Co.,Ltd. Qingdao Branch Pledgor: EBARA REFRIGERATION EQUIPMENT & SYSTEMS (CHINA) Co.,Ltd. Registration number: Y2023370010037 |
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Date of cancellation: 20231229 Granted publication date: 20180223 Pledgee: Mitsubishi UFJ Bank (China) Co.,Ltd. Qingdao Branch Pledgor: EBARA REFRIGERATION EQUIPMENT & SYSTEMS (CHINA) Co.,Ltd. Registration number: Y2023370010037 |