CN203704434U - Two-stage lithium bromide absorption heat transformer unit with refrigerant water preheater - Google Patents

Two-stage lithium bromide absorption heat transformer unit with refrigerant water preheater Download PDF

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Publication number
CN203704434U
CN203704434U CN201420067713.5U CN201420067713U CN203704434U CN 203704434 U CN203704434 U CN 203704434U CN 201420067713 U CN201420067713 U CN 201420067713U CN 203704434 U CN203704434 U CN 203704434U
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CN
China
Prior art keywords
refrigerant
water
absorber
evaporimeter
lithium bromide
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Withdrawn - After Issue
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CN201420067713.5U
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Chinese (zh)
Inventor
毛洪财
王炎丽
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Shuangliang Eco Energy Systems Co Ltd
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Shuangliang Eco Energy Systems Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • Y02B30/625Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration

Abstract

The utility model relates to a two-stage lithium bromide absorption heat transformer unit with a refrigerant water preheater. The two-stage lithium bromide absorption heat transformer unit with the refrigerant water preheater comprises a generator (1), a condenser (2), an evaporator (6), absorbers and solution heat exchangers. According to the two-stage lithium bromide absorption heat transformer unit with the refrigerant water preheater, a flash evaporator (14) and the refrigerant water preheater (16) are additionally arranged, the absorbers comprise the first-stage absorber (11) and the second-stage absorber (13), the solution heat exchangers comprise the high-temperature solution heat exchanger (12) and the low-temperature solution heat exchanger (10), the second-stage absorber (13) and the flash evaporator (14) are located in the same cavity, the first-stage absorber (11) and the evaporator (6) are located in the same cavity, the generator (1) and the condenser (2) are located in the same cavity, a waste heat source enters the evaporator (6), the generator (1) and the refrigerant water preheater (16), and series circulation of a solution is achieved. According to the two-stage lithium bromide absorption heat transformer unit with the refrigerant water preheater, the medium-temperature or low-temperature waste heat source is used for driving, and the temperature rising amplitude of the heat source can be increased under the condition that cooling water is used.

Description

Band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit
Technical field
The utility model relates to a kind of Equations of The Second Kind lithium bromide absorption type heat pump unit.Belong to air conditioner technical field.
Background technology
Warm used heat resource in existing in a large number in production technology, directly emit and not only wasted a large amount of thermals source, but also can produce thermal pollution, adopt water quench need to consume a large amount of cooling waters, these have the place of used heat in art production process, to need again a large amount of high temperature heat sources in addition, and the energy that need to consume a large amount of high-quality is supplied with.Adopt Equations of The Second Kind lithium bromide absorption type heat pump unit in such occasion, under the condition of use cooling water, can effectively reclaim used heat waste heat, produce higher temperature thermal source.But Equations of The Second Kind lithium bromide absorption type heat pump unit is in the past single-action flow process, as shown in Figure 1, it mainly contains the compositions such as the pipeline of generator 1, condenser 2, evaporimeter 6, absorber 7, heat exchanger 5, concentrated solution pump 4, cryogenic fluid pump 3, evaporimeter refrigerant cycle pump 8, control system (not shown) and connecting components, heating flow process is that waste heat source enters in evaporimeter and generator heat-transfer pipe, in generator 1, weak solution from absorber is produced and heats refrigerant vapour, weak solution simmer down to concentrated solution by waste heat source heating.Concentrated solution is delivered to absorber 7 by concentrated solution pump 4 through solution heat exchanger 5.Heat the refrigerant vapour water condensation that is cooled and become water as refrigerant in condenser 2, condensation heat is taken out of outside machine by cooling water, water as refrigerant is delivered to evaporimeter water as refrigerant liquid capsule through cryogenic fluid pump 3 pressurization, then squeezes into evaporimeter 6 tube surface by evaporimeter refrigerant cycle pump 8, draws the heat of waste heat source and evaporates.The concentrated solution that steam is absorbed in device 7 absorbs, and concentrated solution becomes weak solution, the high temperature heat source that will produce in hot heating absorption device 7 pipes of absorption of generation.The heat source temperature that the second-kind absorption-type heat pump unit of single-action flow process is produced is compared with used heat heat source temperature, intensification scope is 30 DEG C of left and right only, and limited by cooling water temperature, hot water increasing extent of temperature cannot further improve, thereby make the grade of the hot water of producing limited, for just meeting by heat demand production technology of high grade.Particularly for the lower situation of waste heat source temperature, adopt the second-kind absorption-type heat pump unit of traditional single-action flow process, the thermal source that cannot produce high-quality because increasing extent of temperature is limited is for production technology or life, in making, (low) warm used heat cannot be recycled and waste, thereby causes energy resource consumption to increase.(low) warm waste heat source in how recycling, produces out more high-grade thermal source and meets production technology or life use, realizes mixed economy and the social benefit of energy-saving and emission-reduction, becomes one of important topic of current research.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of in (low) warm waste heat source drive, use under cooling water condition, improve thermal source increasing extent of temperature, reclaim used heat heat more, produce the more band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit of high-grade thermal source.
The utility model object is achieved in that a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, comprise generator, condenser, evaporimeter, absorber, solution heat exchanger, concentrated solution pump, cryogenic fluid pump and evaporimeter refrigerant cycle pump, described unit has increased a flash vessel and a water as refrigerant preheater, absorber is divided into one-level absorber and secondary absorber simultaneously, solution heat exchanger is divided into high-temperature solution heat exchanger and cryogenic fluid heat exchanger, be equipped with a weak solution pump and a flash distillation refrigerant cycle pump, secondary absorber and flash vessel are in same cavity, one-level absorber and evaporimeter are in same cavity, generator and condenser are in same cavity, waste heat source enters evaporimeter, generator and water as refrigerant preheater, solution circulation series connection, concentrated solution is introduced into secondary absorber and becomes intermediate solution, enter again one-level absorber and become weak solution, weak solution enters generator simmer down to concentrated solution, in condenser, the water as refrigerant of condensation is after water as refrigerant preheater heats up, one-level evaporimeter liquid capsule and flash vessel liquid capsule are delivered to respectively in Fen Er road, the high temperature water as refrigerant that one-level absorber is produced enters flash vessel shwoot, the refrigerant vapour of shwoot is in secondary absorber, absorbed by the concentrated solution from generator, the high temperature heat source that will produce in the hot heating tube of absorption producing.
A kind of band of the utility model water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, is placed in top by the cavity at secondary absorber and flash vessel place, and the cavity at one-level absorber and evaporimeter place is placed in below.
A kind of band of the utility model water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, by one-level absorber, evaporimeter, generator and condenser, in same cylindrical shell, centre is divided into two independently cavitys with dividing plate.
A kind of band of the utility model water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, described waste heat source is divided into two tunnels, and a road advanced evaporimeter of connecting enters generator again, and another road enters water as refrigerant preheater.
A kind of band of the utility model water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, described waste heat source is divided into two tunnels, and a road advanced generator of connecting enters evaporimeter again, and another road enters water as refrigerant preheater.
A kind of band of the utility model water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, described waste heat source Fen San road, parallel connection enters generator, evaporimeter and water as refrigerant preheater.
The beneficial effects of the utility model are:
The utility model is by increasing a flash vessel and a water as refrigerant preheater, absorber is divided into one-level absorber and secondary absorber, solution heat exchanger is divided into high-temperature solution heat exchanger and cryogenic fluid heat exchanger, be equipped with a weak solution pump and a kind of flash distillation refrigerant cycle pump and the above-mentioned brand-new flow process that heats, make waste heat source segmentation cascade utilization, strengthen the concentration difference of solution, water as refrigerant shwoot in flash vessel has reduced temperature loss simultaneously, improve the absorption pressure of secondary absorber, solution temperature in secondary absorber is raise, thereby obtain the more high temperature heat source of high-quality, significantly improve the increasing extent of temperature of high temperature heat source, and intensification scope can reach 65 DEG C of left and right.Because water as refrigerant is heated up by used heat through water as refrigerant preheater, not only make the load reduction of some parts of unit, heat exchange area reduces, and has reclaimed used heat heat more, has improved the coefficient of performance of unit simultaneously.Particularly for the lower situation of waste heat source temperature, more obvious with the advantage of water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit.Under similarity condition, when production technology demand is during compared with high-grade thermal source, single-action Equations of The Second Kind lithium bromide absorption type heat pump unit in the past cannot be realized Waste Heat Recovery, and band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit just can meet the demands.In the time that waste heat source is less, according to production technology demand, band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit can make waste heat source temperature be even lower, and reclaims more used heat heat.Although, coefficient of performance in heating with water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit is lower than single-effect type Equations of The Second Kind lithium bromide absorption type heat pump unit performance coefficient, but increasing extent of temperature is large, low to used heat temperature requirement, compared with heating with boiler, obtain same thermal source, the energy resource consumption of high-quality reduces 100%, discharge but also reduced low-temperature waste heat the thermal pollution bringing, realize effective utilization of used heat resource.
To sum up, the heat of (low) warm used heat in recovery that can be a large amount of with water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, improve thermal source increasing extent of temperature, reclaim used heat heat more, make more high-grade thermal source, reduce the consumption of primary energy, realized mixed economy and the social benefit of energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is single-action Equations of The Second Kind lithium bromide absorption type heat pump unit schematic diagram in the past.
Fig. 2 is the utility model band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit schematic diagram.
In figure:
Generator 1
Condenser 2
Cryogenic fluid pump 3
Concentrated solution pump 4
Solution heat exchanger 5
Evaporimeter 6
Absorber 7
Evaporimeter refrigerant cycle pump 8
One-level absorber 11
Secondary absorber 13
Flash vessel 14
Cryogenic fluid heat exchanger 10
High-temperature solution heat exchanger 12
Weak solution pump 9
Flash distillation water as refrigerant circulating pump 15
Water as refrigerant preheater 16.
Detailed description of the invention
As shown in Figure 2, a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, comprises the pipeline of generator 1, condenser 2, evaporimeter 6, one-level absorber 11, secondary absorber 13, flash vessel 14, cryogenic fluid heat exchanger 10, high-temperature solution heat exchanger 12, concentrated solution pump 4, cryogenic fluid pump 3, evaporimeter refrigerant cycle pump 8, weak solution pump 9, flash distillation refrigerant cycle pump 15, water as refrigerant preheater 16, control system (not shown) and connecting components etc.Secondary absorber 13 and flash vessel 14, in same cylindrical shell, are placed in top; One-level absorber 11, evaporimeter 6, generator 1 and condenser 2 are in same cylindrical shell, and centre is divided into two independently cavitys with dividing plate, are placed in below, and one-level absorber 11 and evaporimeter 6 are in same cavity, in generator 1 and the same cavity of condenser 2.Heating flow process is waste heat source Fen Er road, and a road advanced evaporimeter 6 of connecting enters generator 1 step cooling again, and another road enters water as refrigerant preheater 16 and lowers the temperature.In generator, promoted by weak solution pump 9 from the weak solution of one-level absorber 11, after cryogenic fluid interchanger 10 heats up, produced and heat refrigerant vapour, weak solution simmer down to concentrated solution by waste heat source heating.Concentrated solution is promoted by concentrated solution pump 4, after cryogenic fluid heat exchanger 10 and high-temperature solution heat exchanger 12 intensifications, is sent to secondary absorber 13.Heat refrigerant vapour and enter the water condensation that is cooled in condenser 2 and become water as refrigerant, the condensation heat water that is cooled is taken out of outside machine.In condenser 2, the water as refrigerant of condensation is after water as refrigerant preheater 16 heats up, and flash vessel 14 liquid capsules and evaporimeter 6 liquid capsules are delivered to respectively in Fen Er road.The water as refrigerant that enters flash vessel 14 is sent in one-level absorber 11 heat-transfer pipes by flash vessel refrigerant cycle pump 15.The water as refrigerant that enters one-level evaporimeter 6 is delivered to evaporimeter 6 tube surface by evaporimeter refrigerant cycle pump 8, is evaporated by the waste heat in pipe.Steam is absorbed by the intermediate solution of one-level absorber 11, water as refrigerant in absorption heat heating one-level absorber 11 pipes of generation, and water as refrigerant enters flash vessel 14 shwoots after heating up.The refrigerant vapour of shwoot, in secondary absorber 13, is absorbed from the concentrated solution of generator 1, the high temperature heat source that will produce in the heat heating tube that absorption process produces.Concentrated solution absorbs water as refrigerant steam, becomes intermediate solution.Intermediate solution relies on pressure reduction and difference in height power certainly to flow to one-level absorber 11 through 12 coolings of pyrosol interchanger, and absorbs therein the refrigerant vapour of flash-pot 6, becomes weak solution.Complete the whole circulation that heats.
In above scheme, drive waste heat source Fen Er road, a road series connection also can be entered evaporimeter 6 by advanced generator 1 again, and water as refrigerant preheater 16 is entered on another road, or drives waste heat source Fen San road, and parallel connection enters generator 1, evaporimeter 6, water as refrigerant preheater 16.
In above scheme, driving waste heat source can be spent hot water, and conduction oil or other liquid mediums can be also exhaust steam.

Claims (7)

1. a band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit, comprise generator (1), condenser (2), evaporimeter (6), absorber, solution heat exchanger, concentrated solution pump (4), cryogenic fluid pump (3) and evaporimeter refrigerant cycle pump (8), it is characterized in that: described unit has increased a flash vessel (14) and a water as refrigerant preheater (16), absorber is divided into one-level absorber (11) and secondary absorber (13) simultaneously, solution heat exchanger is divided into high-temperature solution heat exchanger (12) and cryogenic fluid heat exchanger (10), be equipped with a weak solution pump (9) and a flash distillation refrigerant cycle pump (15), secondary absorber (13) and flash vessel (14) are in same cavity, one-level absorber (11) and evaporimeter (6) are in same cavity, generator (1) and condenser (2) are in same cavity, waste heat source enters evaporimeter (6), generator (1) and water as refrigerant preheater (16), solution circulation series connection, concentrated solution is introduced into secondary absorber (13) and becomes intermediate solution, enter again one-level absorber (11) and become weak solution, weak solution enters generator (1) simmer down to concentrated solution, in condenser (2), the water as refrigerant of condensation is after water as refrigerant preheater (16) heats up, one-level evaporimeter (6) liquid capsule and flash vessel (14) liquid capsule are delivered to respectively in Fen Er road, the high temperature water as refrigerant that one-level absorber (11) is produced enters flash vessel (14) shwoot, the refrigerant vapour of shwoot is in secondary absorber (13), absorbed by the concentrated solution from generator (1), the high temperature heat source that will produce in the hot heating tube of absorption producing.
2. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1, it is characterized in that: the cavity at secondary absorber (13) and flash vessel (14) place is placed in to top, and the cavity at one-level absorber (11) and evaporimeter (6) place is placed in below.
3. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1 and 2, it is characterized in that: by one-level absorber (11), evaporimeter (6), generator (1) and condenser (2), in same cylindrical shell, centre is divided into two independently cavitys with dividing plate.
4. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1 and 2, it is characterized in that: described waste heat source is divided into two tunnels, the one road advanced evaporimeter (6) of connecting enters generator (1) again, and another road enters water as refrigerant preheater (16).
5. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1 and 2, it is characterized in that: described waste heat source is divided into two tunnels, the one road advanced generator (1) of connecting enters evaporimeter (6) again, and another road enters water as refrigerant preheater (16).
6. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1 and 2, is characterized in that: described waste heat source Fen San road, parallel connection enters generator (1), evaporimeter (6) and water as refrigerant preheater (16).
7. a kind of band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit according to claim 1 and 2, is characterized in that: described waste heat source is spent hot water conduction oil or exhaust steam.
CN201420067713.5U 2014-02-17 2014-02-17 Two-stage lithium bromide absorption heat transformer unit with refrigerant water preheater Withdrawn - After Issue CN203704434U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103808058A (en) * 2014-02-17 2014-05-21 双良节能系统股份有限公司 Two-level second-kind lithium bromide absorption heat pump unit provided with refrigerant water preheater
CN105444464A (en) * 2015-12-25 2016-03-30 双良节能系统股份有限公司 Smoke-type lithium bromide absorption type water chiller-heater unit for heating and normal temperature smoke exhaust
CN104990298B (en) * 2015-07-09 2018-03-06 荏原冷热系统(中国)有限公司 A kind of second-kind absorption-type heat pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103808058A (en) * 2014-02-17 2014-05-21 双良节能系统股份有限公司 Two-level second-kind lithium bromide absorption heat pump unit provided with refrigerant water preheater
CN104990298B (en) * 2015-07-09 2018-03-06 荏原冷热系统(中国)有限公司 A kind of second-kind absorption-type heat pump
CN105444464A (en) * 2015-12-25 2016-03-30 双良节能系统股份有限公司 Smoke-type lithium bromide absorption type water chiller-heater unit for heating and normal temperature smoke exhaust

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140709

Effective date of abandoning: 20151209

C25 Abandonment of patent right or utility model to avoid double patenting