CN203704433U - Two-stage lithium bromide absorption heat transformer unit with flash evaporator - Google Patents

Two-stage lithium bromide absorption heat transformer unit with flash evaporator Download PDF

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Publication number
CN203704433U
CN203704433U CN201420067660.7U CN201420067660U CN203704433U CN 203704433 U CN203704433 U CN 203704433U CN 201420067660 U CN201420067660 U CN 201420067660U CN 203704433 U CN203704433 U CN 203704433U
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China
Prior art keywords
solution
absorber
generator
evaporimeter
flash vessel
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Withdrawn - After Issue
Application number
CN201420067660.7U
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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 flash evaporator. The two-stage lithium bromide absorption heat transformer unit with the flash evaporator 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 flash evaporator, the flash evaporator (14) is 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) and the generator (1), series circulation of a solution is achieved, the concentrated solution firstly enters the second-stage absorber (13) to be changed into an intermediate solution, the intermediate solution enters the first-stage absorber (11) to be changed into a dilute solution through concentration, and the dilute solution enters the generator (1) to be changed into the concentrated solution. According to the two-stage lithium bromide absorption heat transformer unit with the flash evaporator, the medium-temperature or low-temperature waste heat source is used for driving, and the temperature rising amplitude of a heat source can be increased under the condition that cooling water is used.

Description

Band flash vessel two-stage absorbs 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 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 the composition such as pipeline of unit (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 ℃ of left and right only, and limited by cooling water temperature, thermal source increasing extent of temperature cannot further improve, thereby make the thermal source grade produced 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, make middle temperature used heat cannot recycle and waste, thereby cause 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, produce the more band flash vessel two-stage of high-grade thermal source and absorb Equations of The Second Kind lithium bromide absorption type heat pump unit.
The utility model object is achieved in that a kind of band flash vessel two-stage absorbs 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, 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, in the same cavity of generator and condenser, waste heat source enters evaporimeter and generator, 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, evaporimeter liquid capsule and flash vessel liquid capsule are delivered to respectively in cryogen moisture two tunnels of condensation in condenser, 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 flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, and the cavity at secondary absorber and flash vessel place is placed in to top, and the cavity at one-level absorber and evaporimeter place is placed in below.
A kind of band of the utility model flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, and one-level absorber, evaporimeter, generator and condenser are in same cylindrical shell, and centre is divided into two independently cavitys with dividing plate.
A kind of band of the utility model flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, and the described waste heat source advanced evaporimeter of connecting enters generator again.
A kind of band of the utility model flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, and the described waste heat source advanced generator of connecting enters evaporimeter again.
A kind of band of the utility model flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, and described waste heat source parallel connection enters generator and evaporimeter.
The beneficial effects of the utility model are:
The utility model is by increasing a flash vessel, 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 flash distillation refrigerant cycle pump and the above-mentioned brand-new flow process that heats, strengthen the concentration difference of solution, water as refrigerant shwoot in flash vessel has reduced temperature loss, 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 ℃ of left and right.Particularly, for the lower situation of waste heat source temperature, the advantage that absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit with flash vessel two-stage is more obvious.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 flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit and just can meet the demands.In the time that waste heat source is less, according to production technology demand, band flash vessel two-stage absorbs 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, the coefficient of performance in heating that absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit with flash vessel two-stage 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, Waste Heat Recovery can be realized, compared with heating with boiler from not becoming, obtain same thermal source, the energy resource consumption of high-quality reduces 100%, discharges but also reduced low-temperature waste heat the thermal pollution bringing, and realizes effective utilization of used heat resource.
To sum up, in recovery that can be a large amount of with flash vessel two-stage absorption Equations of The Second Kind lithium bromide absorption type heat pump unit, the heat of (low) warm used heat, improves thermal source increasing extent of temperature, makes more high-grade thermal source, reduce the consumption of primary energy, realized mixed economy and the social benefit of energy-saving and emission-reduction.
Accompanying drawing explanation
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 that the utility model band flash vessel two-stage absorbs 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.
The specific embodiment
As shown in Figure 2, a kind of band flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, comprises 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, controls the pipeline of unit (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.Heat flow process and be the waste heat source advanced evaporimeter 6 of connecting and enter again generator 1 step cooling.In generator 1, 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.Water as refrigerant in condenser 2 is pressurizeed by cryogenic fluid pump 3, 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 liquid capsules 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 refrigerant vapour, 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 series connection also can enter again evaporimeter 6 by advanced generator 1, or drive waste heat source also can parallel connection enter generator 1, evaporimeter 6.
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 flash vessel two-stage absorbs 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), 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, in generator (1) and the same cavity of condenser (2), waste heat source enters evaporimeter (6) and generator (1), 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), evaporimeter liquid capsule and flash vessel liquid capsule are delivered to respectively in cryogen moisture two tunnels of condensation, 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 flash vessel two-stage according to claim 1 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, 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 flash vessel two-stage according to claim 1 and 2 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, it is characterized in that: 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.
4. a kind of band flash vessel two-stage according to claim 1 and 2 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, it is characterized in that: the described waste heat source advanced evaporimeter (6) of connecting enters generator (1) again.
5. a kind of band flash vessel two-stage according to claim 1 and 2 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, it is characterized in that: the described waste heat source advanced generator (1) of connecting enters evaporimeter (6) again.
6. a kind of band flash vessel two-stage according to claim 1 and 2 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, it is characterized in that: described waste heat source parallel connection enters generator (1) and evaporimeter (6).
7. a kind of band flash vessel two-stage according to claim 1 and 2 absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit, it is characterized in that: described waste heat source is spent hot water, conduction oil or exhaust steam.
CN201420067660.7U 2014-02-17 2014-02-17 Two-stage lithium bromide absorption heat transformer unit with flash evaporator Withdrawn - After Issue CN203704433U (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103808060A (en) * 2014-02-17 2014-05-21 双良节能系统股份有限公司 Two-stage absorption second-kind lithium bromide absorption heat pump unit with flash evaporator
CN105444463A (en) * 2015-12-25 2016-03-30 双良节能系统股份有限公司 Direct-fired lithium bromide absorption type water chiller-heater unit system for heating and normal temperature smoke exhaust
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
CN106016815A (en) * 2016-06-01 2016-10-12 河南科技大学 Single-effect two-stage coupling absorption cooling device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103808060A (en) * 2014-02-17 2014-05-21 双良节能系统股份有限公司 Two-stage absorption second-kind lithium bromide absorption heat pump unit with flash evaporator
CN105444463A (en) * 2015-12-25 2016-03-30 双良节能系统股份有限公司 Direct-fired lithium bromide absorption type water chiller-heater unit system for heating and normal temperature smoke exhaust
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
CN105444463B (en) * 2015-12-25 2017-09-29 双良节能系统股份有限公司 Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's machine set system
CN106016815A (en) * 2016-06-01 2016-10-12 河南科技大学 Single-effect two-stage coupling absorption cooling device
CN106016815B (en) * 2016-06-01 2019-04-19 河南科技大学 A kind of single-action two-stage coupling absorption refrigerator

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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: 20151216

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