CN102914080A - Two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning - Google Patents
Two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning Download PDFInfo
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- CN102914080A CN102914080A CN2012104164228A CN201210416422A CN102914080A CN 102914080 A CN102914080 A CN 102914080A CN 2012104164228 A CN2012104164228 A CN 2012104164228A CN 201210416422 A CN201210416422 A CN 201210416422A CN 102914080 A CN102914080 A CN 102914080A
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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
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Abstract
The invention relates to a two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning. The two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning comprises a smoke-afterburned high pressure generator (7), an evaporator, an absorber, a steam generator (19), a hot water generator (21), a condenser, a heat exchanger, a solution pump and a coolant pump and is characterized in that the condenser comprises a single-effect condenser (22) and a double-effect condenser (18), a heat exchange tube bundle of the hot water generator (21) and a heat exchange tube bundle of the single-effect condenser (22) are disposed in one chamber, a heat exchange tube bundle of the steam generator (22) and a heat exchange tube bundle of the double-effect condenser (18) are disposed in another chamber, cooling water flow paths of the single-effect condenser (22) and the double-effect condenser (18) are serially connected, and cooling water enters from the single-effect condenser (22) and comes out of the double-effect condenser (18). Generating pressure of the hot water generator can be lowered, concentration of dilute solution in hot-water single-effect circulation is lowered, and temperature of a waste heat smoke outlet is lowered.
Description
Technical field
The present invention relates to a kind of lithium-bromide absorption-type refrigerating machine group.Belong to air conditioner technical field.
Background technology
Fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit in the past as shown in Figure 1, this unit is made of pipeline, the valve of flue gas fuel supplementing type high pressure generator 7, evaporimeter 56, absorber 45, hot water generator 21, steam generator 19, condenser 55, high-temperature heat exchanger 6, low temperature heat exchanger 5, single-action heat exchanger 24, economic benefits and social benefits solution pump 31, single-action solution pump 32, cryogenic fluid pump 30, control system (not shown) and connecting components.Wherein, it is in the cylindrical shell 54 that the heat-exchanging tube bundle of hot water generator, steam generator and condenser three parts is arranged on same chamber, consists of the compound low condenser that feels cold; The solution circulation workflow of unit by one independently hot water single-action kind of refrigeration cycle workflow and one independently flue gas afterburning dual-effect refrigeration periodic duty flow process form single-action kind of refrigeration cycle and the same evaporimeter of dual-effect refrigeration cycle sharing, same absorber and same condenser.This unit is mainly used in the distributed energy resource system of configuration gas internal-combustion engine generating set, can utilize at the same time or separately the heat drive of waste heat flue gas, hot water (being the high-temperature cooling water of external device (ED)) and the directly combustion fuel generation of the external device (ED) dischargings such as gas internal-combustion engine generating set to carry out refrigerating operaton, the heat drive that can utilize at the same time or separately waste heat flue gas and direct combustion fuel to produce is carried out heat supply running.But because the hot water generator of this unit, the heat-exchanging tube bundle of steam generator and condenser three parts is arranged in the same chamber, the generation pressure of hot water generator higher (identical with the generation pressure of steam generator), and because single-action kind of refrigeration cycle and the same absorber of dual-effect refrigeration cycle sharing, the weak solution concentration of hot water single-action circulation higher (identical with the weak solution concentration of flue gas economic benefits and social benefits circulation), so that the occurrence temperature of hot water generator is higher, during refrigerating operaton, the hot water outlet temperature can only be reduced to about 85 ℃ under conventional cooling water inlet temperature (about such as 32 ℃) and cold water outlet temperature (about such as 7 ℃) condition.In addition, the waste heat exhanst gas outlet temperature of this unit higher (during refrigeration about 170 ℃, when heating about 140 ℃) fails to take full advantage of fume afterheat refrigeration, heat supply.In the main flow gas internal-combustion engine generating set that in distributed energy resource system, disposes at present, the high-temperature cooling water return water temperature of part type requires lower, what have must be lower than 75 ℃, if apolegamy fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration machine in the past, then can not take full advantage of the high-temperature cooling water refrigeration, also need dispose cooling device in the system and high-temperature cooling water is carried out secondary cool, this can cause system's comprehensive utilization of energy rate to descend, and economic benefit is lower; Match simultaneously flue gas afterburning dual effect type cold/hot water machine of lithium bromide group and hot water single-effect type lithium bromide adsorption water chilling unit equipment configuration categories, number of units are increased, thereby increase occupation area of equipment and investment cost.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit that can reduce the generation pressure of hot water generator, the weak solution concentration that reduces hot water single-action circulation and reduction waste heat exhanst gas outlet temperature is provided.
The object of the present invention is achieved like this: a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, comprise flue gas fuel supplementing type high pressure generator, evaporimeter, absorber, steam generator, hot water generator, condenser, heat exchanger, solution pump and cryogenic fluid pump, described condenser comprises single-action condenser and purpose double-action condenser, the heat-exchanging tube bundle of the heat-exchanging tube bundle of hot water generator and single-action condenser is arranged in the chamber, the heat-exchanging tube bundle of steam generator and the heat-exchanging tube bundle of purpose double-action condenser are arranged in another chamber, the cooling water flow path of single-action condenser and purpose double-action condenser adopts serial flow, cooling water advances from the single-action condenser, goes out from purpose double-action condenser.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, described evaporimeter comprises single effect evaporator and double effect evaporator, absorber comprises single-action absorber and economic benefits and social benefits absorber, single effect evaporator and single-action absorber are arranged in the chamber, double effect evaporator and economic benefits and social benefits absorber are arranged in another chamber, the cold water flow process of single effect evaporator and double effect evaporator adopts serial flow, and cold water advances from single effect evaporator, goes out from double effect evaporator.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, the heat-exchanging tube bundle of described steam generator, purpose double-action condenser, hot water generator and single-action condenser four parts are arranged in the same low condenser cylindrical shell that feels cold.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, the heat-exchanging tube bundle of double effect evaporator, economic benefits and social benefits absorber, single effect evaporator and single-action absorber four parts is arranged in the same evaporation absorber cylindrical shell.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention is provided with flue gas heat-exchange unit in the waste heat flue gas exit flue of on the waste heat smoke outlet tube of flue gas fuel supplementing type high pressure generator or unit outside.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention is provided with hot water communicating pipe between described flue gas heat-exchange unit and the hot water generator.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, described hot water communicating pipe is provided with the second hot water transfer valve and the first hot water outlet pipe, and the first hot water outlet pipe is provided with the first hot water transfer valve.
Two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention is provided with the concentrated solution cross over pipe with the concentrated solution stop valve between described economic benefits and social benefits absorber feed tube and the single-action absorber feed tube; Between economic benefits and social benefits absorber liquid capsule and single-action absorber liquid capsule, be provided with the weak solution cross over pipe with the weak solution stop valve.
The invention has the beneficial effects as follows:
The present invention is on fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit basis in the past, by in the low condenser cylindrical shell that feels cold, the segmentation dividing plate being set, make the low condenser that feels cold become the two-period form structure to reduce the generation pressure of hot water generator, by the segmentation dividing plate is set in the evaporation absorber cylindrical shell, make evaporation absorber become the two-period form structure to reduce the weak solution concentration of hot water single-action circulation, the occurrence temperature of hot water generator is minimized, thereby make unit energy take full advantage of low-grade heat hydro-thermal amount refrigeration, the hot water outlet temperature is dropped to lower (minimum being down to about 70 ℃); Recycle low-temperature flue gas waste heat refrigeration, heat supply by setting up flue gas heat-exchange unit, reduce waste heat exhanst gas outlet temperature (be reduced to during refrigerating operaton below 120 ℃, be reduced to during heat supply running below 90 ℃), but Effective Raise fume afterheat utilization rate.The heat drive that the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit of the technology of the present invention can utilize waste heat flue gas, hot water and self combustion fuel of the discharging of the external device (ED) such as gas internal-combustion engine generating set to provide is at the same time or separately carried out refrigerating operaton, the heat drive that can utilize at the same time or separately waste heat flue gas and self combustion fuel to provide is carried out heat supply running, the low-grade heat source utility is superior, and energy-efficient performance is good.
Description of drawings
Fig. 1 is fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit schematic diagram in the past.
Fig. 2 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit embodiment 1 schematic diagram of the present invention.
Fig. 3 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit embodiment 2 schematic diagrames of the present invention.
Fig. 4 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit embodiment 3 schematic diagrames of the present invention.
Fig. 5 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit embodiment 4 schematic diagrames of the present invention.
Reference numeral among the figure:
Evaporation absorber cylindrical shell 1, evaporation absorber segmentation dividing plate 2, double effect evaporator 3, economic benefits and social benefits absorber 4, low temperature heat exchanger 5, high-temperature heat exchanger 6, flue gas fuel supplementing type high pressure generator 7, solution transfer valve 8, waste heat flue gas inlet tube 9, flue gas heat-exchange unit 10, waste heat smoke outlet tube 11, the hot water inlet pipe 12, the first hot water outlet pipe 13, the first hot water transfer valve 14, the second hot water transfer valve 15, steam transfer valve 16, the low condenser cylindrical shell 17 that feels cold, purpose double-action condenser 18, steam generator 19, the low condenser segmentation dividing plate 20 that feels cold, hot water generator 21, single-action condenser 22, the second hot water outlet pipe 23, single-action heat exchanger 24, cooling water outlet pipe 25, cold (heat) water outlet pipe 26, single effect evaporator 27, cold (heat) water inlet pipe 28, single-action absorber 29, cryogenic fluid pump 30, economic benefits and social benefits solution pump 31, single-action solution pump 32, cooling water inlet pipe 33, refrigerant vapour pipe 34, hot water unicom pipeline 35, drain pipe 36 occurred frequently, afterburning smoke outlet tube 37, direct combustion high pressure generator 38, economic benefits and social benefits absorber feed tube 39, concentrated solution communicating pipe 40, concentrated solution stop valve 41, single-action absorber feed tube 42, weak solution communicating pipe 43, weak solution stop valve 44, absorber 45, absorber feed tube 46, hot water generator feed tube 47, hot water generator drain pipe 48, steam generator drain pipe 49, steam generator feed tube 50, demarcation strip 51, hot water heat-exchanging tube bundle 52, steam heat-exchanging tube bank 53, cylindrical shell 54, condenser 55, evaporimeter 56, burner 57, cigarette vapour type high pressure generator 59.
The specific embodiment
The present invention is unit as shown in Figure 2, and this unit is by flue gas fuel supplementing type high pressure generator 7, double effect evaporator 3, economic benefits and social benefits absorber 4, economic benefits and social benefits solution pump 31, high-temperature heat exchanger 6, low temperature heat exchanger 5, steam generator 19, purpose double-action condenser 18, single effect evaporator 27, single-action absorber 29, single-action solution pump 32, single-action heat exchanger 24, hot water generator 21, single-action condenser 22, flue gas heat-exchange unit 10, cryogenic fluid pump 30, the pipeline of control system (not shown) and connecting components, the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit that valve consists of.Single-action condenser 22 and purpose double-action condenser 18 general designation condensers.Single effect evaporator 27 and double effect evaporator 3 general designation evaporimeters.High-temperature heat exchanger 6, low temperature heat exchanger 5 and single-action heat exchanger 24 general designation heat exchangers.Single-action solution pump 32 and economic benefits and social benefits solution pump 31 general designation solution pumps.
Wherein, steam generator 19, purpose double-action condenser 18, the heat-exchanging tube bundle of hot water generator 21 and single-action condenser 22 4 parts is arranged in the same low condenser cylindrical shell 17 that feels cold, be provided with the low condenser segmentation dividing plate 20 that feels cold in the middle of the low condenser cylindrical shell 17 that feels cold, the heat-exchanging tube bundle of steam generator and purpose double-action condenser and the heat-exchanging tube bundle of hot water generator and single-action condenser are separated in two chambers, make the low condenser that feels cold become two-period form structure (steam generator and hot water generator are low pressure generator), the cooling water of single-action condenser 22 and purpose double-action condenser 18 is serial flow (being the two-period form condensation), cooling water advances from single-action condenser 22, goes out from purpose double-action condenser 18; The heat-exchanging tube bundle of double effect evaporator, economic benefits and social benefits absorber, single effect evaporator and single-action absorber four parts is arranged in the same evaporation absorber cylindrical shell 1, be provided with evaporation absorber segmentation dividing plate 2 in the middle of the evaporation absorber cylindrical shell 1, the heat-exchanging tube bundle of double effect evaporator and economic benefits and social benefits absorber and single effect evaporator and single-action absorber is separated in two chambers, make evaporation absorber become the two-period form structure, the cold water of single effect evaporator 27 and double effect evaporator 3 is serial flow (being the two-period form sweat cooling), cold water advances from single effect evaporator 27, goes out from double effect evaporator 3; Flue gas heat-exchange unit is arranged on (or in waste heat flue gas exit flue of unit outside) on the waste heat smoke outlet tube 11, be provided with hot water unicom pipeline 35 between flue gas heat-exchange unit and the hot water generator, the hot water unicom pipeline is provided with the second hot water transfer valve 15 and the first hot water outlet pipe 13, the first hot water outlet pipes 13 are provided with the first hot water transfer valve 14; Be provided with concentrated solution cross over pipe 40 between economic benefits and social benefits absorber feed tube 39 and single-action absorber feed tube 42, concentrated solution cross over pipe 40 is provided with concentrated solution stop valve 41; Be provided with weak solution cross over pipe 43 between economic benefits and social benefits absorber liquid capsule and single-action absorber liquid capsule, weak solution cross over pipe 43 is provided with weak solution stop valve 44; Pipeline between drain pipe 36 occurred frequently and economic benefits and social benefits absorber 4 is equipped with solution transfer valve 8; Pipeline between refrigerant vapour pipe 34 and double effect evaporator 3 is equipped with steam transfer valve 16.
Unit utilizes simultaneously flue gas and hot water, utilizes the heat that hot water and combustion fuel produce or when utilizing simultaneously the heat drive refrigerating operaton that flue gas, hot water and combustion fuel produce simultaneously, solution transfer valve, steam transfer valve, concentrated solution stop valve, weak solution stop valve and the first hot water transfer valve are closed, the second hot water transfer valve is opened, and unit is pressed single-double effect compound type kind of refrigeration cycle process flow operation.Single-action solution circulation flow process is: single-action absorber → single-action solution pump → single-action heat exchanger → hot water generator → single-action heat exchanger → single-action absorber; Economic benefits and social benefits solution circulation flow process is: economic benefits and social benefits absorber → economic benefits and social benefits solution pump → low temperature heat exchanger → high-temperature heat exchanger → flue gas fuel supplementing type high pressure generator → high-temperature heat exchanger → steam generator → low temperature heat exchanger → economic benefits and social benefits absorber.From the waste heat flue gas of the external device (ED)s such as gas internal-combustion engine generating set from flue gas inlet tube 9 enter flue gas fuel supplementing type high pressure generator and (or) the flue gas fuel supplementing type high pressure generator heat of joining burner combustion fuel and providing heats lithium-bromide solution, the waste heat flue-gas temperature is reduced to and enters the flue gas heat-exchange unit heating after about 170 ℃ from the waste heat hot water of the external device (ED)s such as gas internal-combustion engine generating set, temperature further is reduced to about 120 ℃ and goes out unit (entering atmosphere through external chimney) by waste heat smoke outlet tube 11, make unit energy fully recycle the fume afterheat refrigerating operaton, realize saving energy and reduce the cost, improve the comprehensive utilization of energy rate; The flue-gas temperature that combustion fuel produces goes out unit (entering atmosphere through external chimney) from afterburning smoke outlet tube 37 after reducing.Waste heat hot water from external device (ED)s such as gas internal-combustion engine generating sets enters flue gas heat-exchange unit from hot water inlet pipe 12, entered hot water generator heating lithium-bromide solution by the intensification of waste heat flue gas by the hot water unicom pipeline, the temperature reduction goes out unit by the second hot water outlet pipe 23, returns the external device (ED)s such as generating set.The cooling moisture three tunnel that enters unit from cooling water inlet pipe 33 enters single-action absorber 29, economic benefits and social benefits absorber 4 and the condenser of unit, and absorption process and the condensation process of unit cooled, and temperature raises and goes out unit by cooling water outlet pipe 25; Wherein, the cooling water of turnover condenser is introduced in single-action condenser 22 heat exchanger tubes, the outer refrigerant vapour of cooling single-action condenser heat-exchange pipes heats up, enter again in purpose double-action condenser 18 heat exchanger tubes, the outer refrigerant vapour of cooling purpose double-action condenser heat exchanger tube further heats up, single, double effect condenser is formed the two-period form condensation, make the condensation temperature of single-action condenser, condensation temperature, the condensing pressure that condensing pressure is lower than purpose double-action condenser, thereby make the operating pressure of hot water generator-single-action condenser, chamber be lower than the operating pressure of steam generator-purpose double-action condenser chamber.The cold water that enters unit from cold (heat) water inlet pipe 28 is introduced in single effect evaporator 27 heat exchanger tubes, by the outer water as refrigerant evaporation endothermic cooling (being sweat cooling) of single effect evaporator pipe, enter again in double effect evaporator 3 heat exchanger tubes, gone out unit by the further cooling of the outer water as refrigerant evaporation endothermic of double-effect evaporation organ pipe by cold (heat) water outlet pipe 26, make the sweat cooling process become the two-period form process, the cold water out temperature of single effect evaporator, evaporating temperature and evaporating pressure all are higher than the cold water out temperature of double effect evaporator, evaporating temperature and evaporating pressure, thereby the operating pressure that makes single effect evaporator-single-action absorber chamber is higher than the operating pressure of double effect evaporator-economic benefits and social benefits absorber chamber, the weak solution concentration of single-action absorber is minimized (being lower than the weak solution concentration of economic benefits and social benefits absorber).Reduce the occurrence temperature that the weak solution concentration that enters hot water generator and the operating pressure that reduces hot water generator all can reduce hot water generator, thereby make unit energy take full advantage of the lower low-grade heat water-driven refrigerating operaton of temperature, the hot water outlet temperature is dropped to lower (minimum being down to about 70 ℃), satisfy the service requirement of the lower external device (ED)s such as gas internal-combustion engine generating set of return water temperature requirement, realize saving energy and reduce the cost, improve the comprehensive utilization of energy rate.
When unit utilized separately hot water to drive refrigerating operaton, solution transfer valve, steam transfer valve, concentrated solution stop valve, weak solution stop valve and the first hot water transfer valve were closed, and the second hot water transfer valve is opened, and unit is by single-action kind of refrigeration cycle process flow operation.The stall of economic benefits and social benefits solution pump, the dual-effect refrigeration circulatory system and parts thereof are not worked, and only respectively as cold water, cooling water flow circulation passage, flue gas heat-exchange unit is only as the flow of hot water circulation passage for double effect evaporator, economic benefits and social benefits absorber and purpose double-action condenser.
When unit utilized separately flue gas to drive refrigerating operaton, solution transfer valve, steam transfer valve, concentrated solution stop valve and weak solution stop valve were closed, and unit is pressed the operation of dual-effect refrigeration circulation process.The stall of single-action solution pump, single-action cooling cycle system and parts thereof are not worked, and only respectively as cold water, cooling water flow circulation passage, flue gas heat-exchange unit is only as the smoke gas flow circulation passage for single effect evaporator, single-action absorber and single-action condenser.
Unit utilizes simultaneously the heat that flue gas and combustion fuel produce or when combustion fuel drove refrigerating operaton separately, solution transfer valve and steam transfer valve were closed, and concentrated solution stop valve and weak solution stop valve are opened, and unit press the dual-effect refrigeration circulation process and moved.The stall of single-action solution pump, hot water generator and single-action condenser are not worked, and the single-action condenser is only as the cooling water flow circulation passage, and flue gas heat-exchange unit is only as the smoke gas flow circulation passage.Go out concentrated solution minute two-way after low temperature heat exchanger heat exchange cooling of steam generator, one the tunnel advances the economic benefits and social benefits absorber, another road enters the single-action absorber through concentrated solution cross over pipe 40, single effect evaporator, single-action absorber and double effect evaporator, economic benefits and social benefits absorber are worked together, the heat exchange area of single effect evaporator, single-action absorber is also utilized when the dual-effect refrigeration periodic duty, thus the refrigerating capacity when making the refrigerating capacity of unit when the dual-effect refrigeration periodic duty also can reach the work of single-double effect compound type kind of refrigeration cycle.This set has the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit of concentrated solution cross over pipe and weak solution cross over pipe, it is lower to be mainly used in satisfying waste heat hot water backwater temperature, and require the refrigerating capacity of unit when not having waste heat flue gas and hot water, independent combustion fuel operation also need reach the application requirements of specified refrigerating capacity, and do not need to strengthen according to specified refrigerating capacity the heat exchange area of double effect evaporator and economic benefits and social benefits absorber.
During the unit heat supply running, solution transfer valve, steam transfer valve and the first hot water transfer valve are opened, concentrated solution stop valve, weak solution stop valve and the second hot water transfer valve are closed, (external heat source hot water is directly sent into the heating system heat supply without the hot water circulation in the hot water generator heat exchanger tube, or provide heat supply hot water after sending into the heat exchanger heat exchange), cryogenic fluid pump and the stall of single-action solution pump; Unit can utilize waste heat flue gas and combustion fuel to drive operation at the same time or separately.The solution circulation flow process is: economic benefits and social benefits absorber → economic benefits and social benefits solution pump → low temperature heat exchanger → high-temperature heat exchanger → flue gas fuel supplementing type high pressure generator → economic benefits and social benefits absorber, the high and low temperature heat exchanger is only as the weak solution circulation passage.From the waste heat flue gas of the external device (ED)s such as gas internal-combustion engine generating set from flue gas inlet tube enter flue gas type high pressure generator and (or) the flue gas fuel supplementing type high pressure generator heat of joining burner combustion fuel and providing heats lithium-bromide solution, enter flue gas heat-exchange unit after the waste heat flue-gas temperature is reduced to about 140 ℃ and heat the hot water that comes autothermal operation system, the waste heat flue-gas temperature further is reduced to about 90 ℃ and goes out unit (entering atmosphere through external chimney) by smoke outlet tube, make unit energy fully recycle the fume afterheat heat supply running, realize saving energy and reduce the cost, improve the comprehensive utilization of energy rate; The flue-gas temperature that combustion fuel produces goes out unit (entering atmosphere through external chimney) from afterburning smoke outlet tube 37 after reducing.After the heat supply hot water that enters flue gas heat-exchange unit from the hot water inlet pipe is heated up by the waste heat flue gas, go out flue gas heat-exchange unit through the first hot water outlet pipe, return heating system heat supply (heat supply in parallel of flue gas heat-exchange unit and evaporimeter), or enter the further heat temperature raising of evaporimeter (flue gas heat-exchange unit and evaporator series heat supply, not shown cross over pipe) through cold (heat) water inlet pipe.During the independent combustion fuel operation of unit, flue gas heat-exchange unit is not worked.The heat supply hot water of turnover evaporimeter only in the double effect evaporator heat exchanger tube by heat exchanger tube outside from the high temperature refrigerant vapour heat temperature raising of flue gas fuel supplementing type high pressure generator, single effect evaporator is only as the flow of hot water circulation passage.
Embodiment 2:
Cancel the evaporation absorber segmentation dividing plate in the unit evaporation absorber cylindrical shell shown in Figure 2, and single effect evaporator and double effect evaporator be merged into an evaporimeter, single-action absorber and economic benefits and social benefits absorber are merged into an absorber, economic benefits and social benefits absorber feed tube 39 and single-action absorber feed tube 42 are merged into absorber feed tube 46, go to disappear weak solution communicating pipe, unit namely becomes the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit (as shown in Figure 3) that the low condenser that feels cold adopts the two-period form structure.Thermal source hot water backwater temperature is suitable for adopting the unit of this structure in the time of only need being reduced to 80 ℃ of left and right sides, set structure is oversimplified relatively.
When evaporation absorber adopted the two-period form structure, the cooling water flow path of single-action absorber and economic benefits and social benefits absorber can adopt parallel-connection flow (as shown in Figure 2), also can adopt serial flow (as shown in Figure 4).When the absorber cooling water adopted serial flow, cooling water advanced from the single-action absorber, goes out from the economic benefits and social benefits absorber.Absorber cooling water serial flow unit more is applicable to the lower unit of thermal source hot water backwater temperature.
Embodiment 3:
Flue gas fuel supplementing type high pressure generator in the unit can adopt monomer structure (namely single structure occurred frequently), such as Fig. 2 ~ shown in Figure 4, also can adopt Split type structure (i.e. pair structures occurred frequently), as shown in Figure 5.
Solution transfer valve, steam transfer valve, the first hot water transfer valve and tube connector thereof and the second hot water transfer valve in cancellation Fig. 2～unit shown in Figure 5, unit namely becomes the two-period form fume hot-water afterburning list dual effect type compound type lithium bromide absorption type handpiece Water Chilling Units for separate refrigeration.
Claims (10)
1. two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, comprise flue gas fuel supplementing type high pressure generator (7), evaporimeter, absorber, steam generator (19), hot water generator (21), condenser, heat exchanger, solution pump and cryogenic fluid pump, it is characterized in that: described condenser comprises single-action condenser (22) and purpose double-action condenser (18), the heat-exchanging tube bundle of the heat-exchanging tube bundle of hot water generator (21) and single-action condenser (22) is arranged in the chamber, the heat-exchanging tube bundle of the heat-exchanging tube bundle of steam generator (19) and purpose double-action condenser (18) is arranged in another chamber, the cooling water flow path of single-action condenser (22) and purpose double-action condenser (18) adopts serial flow, cooling water advances from single-action condenser (22), goes out from purpose double-action condenser (18).
2. a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, it is characterized in that: described evaporimeter comprises single effect evaporator (27) and double effect evaporator (3), absorber comprises single-action absorber (29) and economic benefits and social benefits absorber (4), single effect evaporator (27) and single-action absorber (29) are arranged in the chamber, double effect evaporator (3) and economic benefits and social benefits absorber (4) are arranged in another chamber, the cold water flow process of single effect evaporator (27) and double effect evaporator (3) adopts serial flow, cold water advances from single effect evaporator (27), goes out from double effect evaporator (3).
3. a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1 is characterized in that: the heat-exchanging tube bundle of described steam generator (19), purpose double-action condenser (18), hot water generator (21) and single-action condenser (22) four parts is arranged in the same low condenser cylindrical shell (17) that feels cold.
4. a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 2, it is characterized in that: the heat-exchanging tube bundle of described double effect evaporator (3), economic benefits and social benefits absorber (4), single effect evaporator (27) and single-action absorber (29) four parts is arranged in the same evaporation absorber cylindrical shell (1).
5. according to claim 1 and 2 or 3 or 4 described a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, it is characterized in that on waste heat exhanst gas outlet (11) pipe of flue gas fuel supplementing type high pressure generator (7) or waste heat flue gas exit flue that unit is outside in be provided with flue gas heat-exchange unit (10).
6. a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 5 is characterized in that being provided with hot water connecting pipe (35) between described flue gas heat-exchange unit (10) and the hot water generator (21).
7. a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 6, it is characterized in that described hot water connecting pipe (35) is provided with the second hot water transfer valve (15) and the first hot water outlet pipe (13), the first hot water outlet pipe (13) is provided with the first hot water transfer valve (14).
8. according to claim 2 or 4 described a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, it is characterized in that being provided with between described economic benefits and social benefits absorber feed tube (39) and the single-action absorber feed tube (42) the concentrated solution cross over pipe (40) of band concentrated solution stop valve (41); Between economic benefits and social benefits absorber liquid capsule and single-action absorber liquid capsule, be provided with the weak solution cross over pipe (43) of band weak solution stop valve (44).
9. according to claim 1 and 2 or 3 or 4 described a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, it is characterized in that described flue gas fuel supplementing type high pressure generator (7) is single structure occurred frequently.
10. according to claim 1 and 2 or 3 or 4 described a kind of two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigeration unit, it is characterized in that described flue gas fuel supplementing type high pressure generator (7) is two structures occurred frequently.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104164228A CN102914080A (en) | 2012-10-27 | 2012-10-27 | Two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104164228A CN102914080A (en) | 2012-10-27 | 2012-10-27 | Two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning |
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| CN102914080A true CN102914080A (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104164228A Pending CN102914080A (en) | 2012-10-27 | 2012-10-27 | Two-stage single-effect and double-effect lithium bromide absorption refrigerating unit with smoke and hot water afterburning |
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| CN102997481A (en) * | 2012-12-06 | 2013-03-27 | 双良节能系统股份有限公司 | Hot water direct-fired single-double effect composite type lithium bromide absorption refrigerating unit |
| CN102997480A (en) * | 2012-12-06 | 2013-03-27 | 双良节能系统股份有限公司 | Flue gas and hot water single and double effect compound lithium bromide absorbing refrigerating unit |
| CN103759460A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Two-section smoke hot water single-dual effect composite lithium bromide absorption water chilling unit |
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| CN110173926A (en) * | 2019-06-24 | 2019-08-27 | 双良节能系统股份有限公司 | Double-generator direct-burning type lithium bromide absorption type heat pump unit with dual-effect refrigeration function |
| CN110542239A (en) * | 2019-09-19 | 2019-12-06 | 双良节能系统股份有限公司 | Single-double effect composite evaporation-absorption two-section direct combustion type first-class lithium bromide absorption heat pump unit |
| CN111156733A (en) * | 2020-01-15 | 2020-05-15 | 东北电力大学 | Biomass flue gas waste heat total heat recovery type absorption-compression coupling heat pump system |
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| CN110173921A (en) * | 2019-06-18 | 2019-08-27 | 双良节能系统股份有限公司 | A kind of two-period form lithium bromide absorption type heat pump unit of energy dual-effect refrigeration |
| CN110173921B (en) * | 2019-06-18 | 2024-04-26 | 双良节能系统股份有限公司 | Two-stage lithium bromide absorption heat pump unit capable of double-effect refrigeration |
| CN110173925A (en) * | 2019-06-24 | 2019-08-27 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold water unit with single-action heat pump heat-production functions |
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| CN110542239A (en) * | 2019-09-19 | 2019-12-06 | 双良节能系统股份有限公司 | Single-double effect composite evaporation-absorption two-section direct combustion type first-class lithium bromide absorption heat pump unit |
| CN111156733A (en) * | 2020-01-15 | 2020-05-15 | 东北电力大学 | Biomass flue gas waste heat total heat recovery type absorption-compression coupling heat pump system |
| CN111156733B (en) * | 2020-01-15 | 2022-11-08 | 东北电力大学 | Biomass flue gas waste heat total heat recovery type absorption-compression coupling heat pump system |
| CN112460832A (en) * | 2020-09-09 | 2021-03-09 | 国网综合能源服务集团有限公司 | Lithium bromide refrigerating unit based on gas comprehensive energy station and operation method of refrigerating unit |
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Application publication date: 20130206 |