CN101182962B - Composite absorption heat pump - Google Patents
Composite absorption heat pump Download PDFInfo
- Publication number
- CN101182962B CN101182962B CN2007101148612A CN200710114861A CN101182962B CN 101182962 B CN101182962 B CN 101182962B CN 2007101148612 A CN2007101148612 A CN 2007101148612A CN 200710114861 A CN200710114861 A CN 200710114861A CN 101182962 B CN101182962 B CN 101182962B
- Authority
- CN
- China
- Prior art keywords
- level
- heat
- absorber
- condenser
- class
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a compound-typed first class absorption heat pump and belongs to the technical field of waste heat utilization and heat pump/refrigeration. The invention aims at the shortcoming of the single class heat pump and provides a compound integrated type machine set mainly consisting of a first class generator, a second class generator, a first class condenser, a second class condenser, a first class absorber, a second class absorber, an evaporator, a throttle, a solution pump and other basic components. A first class heat pump procedure with high performance index and a low temperature heat supply section consists of the first class generator, the first class condenser, the throttle, the evaporator, the solution pump and the first class absorber; the second class generator, the second class condenser, the throttle, the solution pump and the absorber form a second class heat pump procedure with a high temperature heat supply section and low performance index with the help of the first class procedure; wherein, the second class condenser is communicated with the first class condenser through the throttle and the first class generator is communicated with the second class absorber through a refrigerant evaporation channel; the heat pump can fully take use of the waste heat and has higher energy-saving benefit when in the high temperature heat supply in a wide temperature range; the waste heat refrigeration can make use of driven heat deeply.
Description
Technical field:
The invention belongs to low temperature exhaust heat utilization and absorption type heat pump.
Background technology:
Adopting absorption heat pump/Refrigeration Technique to carry out UTILIZATION OF VESIDUAL HEAT IN is effective means, has the many-sided benefit of energy-saving and environmental protection and economic dispatch.Under the prerequisite of meeting consumers' demand, should guarantee that unit has higher performance index, realize the simplification of unit/system architecture and flow process again, be the developing direction of absorption technology.
For absorption heat pump/Refrigeration Technique, the relation of mutual restriction is arranged between the running parameter of unit and its performance index.Such as first kind absorption heat pump, the low and performance index height of the unit heat supply temperature that progression is low, the unit heat supply temperature height that progression is high but performance index is low; And for refrigeration unit, under the cooling condition of determining, performance index was high but temperature driving heat that require simultaneously is also high when progression was low, and the unit performance index that progression is high is low but the temperature driving heat that requires is also low.This is the characteristic that unit had of single progression.
When carrying out the heat utilization of waste heat, lower or heat supply temperature is had relatively high expectations, when the waste heat amount is enriched inadequately, must adopt first kind absorption heat pump technology that residual heat resources are applied at waste heat supply temperature.Less in the residual heat resources amount, temperature is lower or higher, the interval broad of the temperature of hot user's request---in the time of heated medium need being heated to higher temperature by lower temperature, adopt the heat pump of single progression often can not realize both having satisfied hot user's the heat demand of using, the effect that has higher performance index again, this just can not realize the maximization of energy-saving benefit.
When adopting utilizing waste heat for refrigeration, when the initial parameter that refrigeration requires and driving is hot is determined, adopt the unit of single progression often can not make full use of to drive heat to obtain more refrigeration capacity, especially all the more so when utilizing utilizing waste heat for refrigeration---the unit of single progression can't be realized fully, effectively utilize waste heat.
Adopt the unit composition associating heat pump or the joint refrigeration system of different progression can realize higher heating or the benefit of freezing, but this can bring the complicated and high cost of total system.
Absorption heat pump/Refrigeration Technique has its particularity, different structures and flow process often corresponding very big performance index and the running parameter scope of difference, realize that simple integrated and maximization performance index of unit is the purpose that the present invention pursues.
Summary of the invention:
Main purpose of the present invention is that a kind of integral type composite absorption heat pump that heating range is wide, heat supply temperature is high and performance index is high that has will be provided, and it mainly is made up of institutes such as second-stage generator, first-stage generator, secondary condenser, first-stage condenser, evaporimeter, secondary absorber, one-level absorber, one-level choke valve, two-step throttle valve, one-level solution pump, secondary solution pump, one-level solution heat exchanger and secondary solution heat exchangers; Component property index height such as first-stage generator, first-stage condenser, one-level choke valve, evaporimeter, one-level absorber, one-level solution pump and one-level solution heat exchanger, one-level heat pump flowsheet and structure that heat supply temperature is low; Second-stage generator, secondary condenser, two-step throttle valve, secondary absorber, secondary solution pump and secondary solution heat exchanger, and by means of the one-level heat pump flowsheet, secondary heat pump flowsheet and structure that the component property index is low, heat supply temperature is high; Wherein, first-stage generator is by refrigerant vapour channel connection secondary absorber, and secondary condenser is communicated with first-stage condenser by the two-step throttle valve; The one-level heat pump flowsheet is used to satisfy user's low-temperature zone heat demand and provides refrigerant vapour to the secondary absorber of secondary heat pump flowsheet, and the secondary heat pump flowsheet is finished user's high temperature section heat demand; When the present invention is used to freeze, is communicated with through driving hot medium pipeline between first-stage generator and the second-stage generator, drives thermal medium flow through successively first-stage generator and second-stage generator, can realize driving hot degree of depth utilization.
As shown in Figure 1, the present invention is achieved in that as the purpose of composite absorption heat pump
1. structurally, first-stage generator, first-stage condenser, the one-level choke valve, evaporimeter, the one-level absorber, one-level solution pump and one-level solution heat exchanger are formed one-level heat pump flowsheet and structure---link to each other by the refrigerant vapour passage between first-stage generator and the first-stage condenser, first-stage condenser is communicated with evaporimeter through the one-level choke valve again, evaporimeter also has refrigerant vapour channel connection one-level absorber, the concentrated solution pipeline is arranged respectively between one-level absorber and the first-stage generator, weak solution pipeline and through the one-level solution pump, the one-level solution heat exchanger is communicated with, first-stage generator also has pipeline to be communicated with the driving thermal medium, evaporimeter also has pipeline to be communicated with the waste heat medium, is communicated with through the heated medium pipeline between one-level absorber and the first-stage condenser; Second-stage generator, secondary condenser, the two-step throttle valve, secondary absorber, secondary solution pump and secondary solution heat exchanger, and by means of the one-level heat pump flowsheet, form the secondary heat pump flowsheet---link to each other by the refrigerant vapour passage between second-stage generator and the secondary condenser, secondary condenser is communicated with first-stage condenser through the two-step throttle valve again, the refrigerant vapour channel connection is arranged between first-stage generator and the secondary absorber, the concentrated solution pipeline is arranged respectively between secondary absorber and the second-stage generator, weak solution pipeline and through the secondary solution pump, the secondary solution heat exchanger is communicated with, second-stage generator also has pipeline to be communicated with the driving thermal medium, is communicated with through the heated medium pipeline between secondary absorber and the secondary condenser; Compound connection between two heat pump flowsheets is achieved in that between the first-stage condenser of the secondary condenser of secondary heat pump flowsheet and one-level heat pump flowsheet has cryogen liquid channel connection through the two-step throttle valve, be connected through the refrigerant vapour passage between first-stage generator and the secondary absorber, one-level heat pump flowsheet and secondary heat pump flowsheet are finished low-temperature zone and high temperature section heat supply successively.
2. on flow process, one-level heat pump flowsheet---weak solution is squeezed into first-stage generator by the one-level solution pump, the effect that is driven heat discharges refrigerant vapour and enters first-stage condenser, the refrigerant vapour heat release is condensed and enters evaporimeter after one-level choke valve throttling step-down in heated medium, obtaining the thermal evaporation that the waste heat medium passes to becomes refrigerant vapour to enter the one-level absorber, absorbed and heat release by concentrated solution from first-stage generator, the concentrated solution of first-stage generator enters the one-level absorber through the one-level solution heat exchanger, absorbing becomes weak solution behind the refrigerant vapour of flash-pot again, flow through successively one-level absorber and first-stage condenser of heated medium taken away heat, and waste heat medium turnover evaporimeter is lowered the temperature; Secondary heat pump flowsheet---weak solution is squeezed into second-stage generator by the secondary solution pump, weak solution is driven heat in second-stage generator effect discharges refrigerant vapour and enters secondary condenser, heat release is condensed into liquid behind the heated medium of the secondary condenser of flowing through, condensate liquid enters the one-level heat pump flowsheet and finally become refrigerant vapour again in first-stage generator and is released after the throttling of two-step throttle valve, the concentrated solution of second-stage generator enters secondary absorber through the secondary solution heat exchanger, absorption becomes weak solution after from the refrigerant vapour of first-stage generator again, flow through successively secondary absorber and secondary condenser of heated medium taken away heat, it is characterized in that: one-level heat pump flowsheet and secondary heat pump flowsheet form integrated unit, the one-level heat pump flowsheet is finished the low-temperature zone heat supply and is provided refrigerant vapour to the secondary heat pump flowsheet, and the secondary heat pump flowsheet is finished the high temperature section heat supply and provided refrigerant medium to the one-level heat pump flowsheet.
As shown in Figure 2, the present invention is achieved in that as the purpose of composite absorption type compressor
1. structurally, first-stage generator, first-stage condenser, the one-level choke valve, evaporimeter, the one-level absorber, one-level solution pump and one-level solution heat exchanger are formed one-level cooling flow and structure---link to each other by the refrigerant vapour passage between first-stage generator and the first-stage condenser, first-stage condenser is communicated with evaporimeter through the one-level choke valve again, evaporimeter also has refrigerant vapour channel connection one-level absorber, the concentrated solution pipeline is arranged respectively between one-level absorber and the first-stage generator, weak solution pipeline and through the one-level solution pump, the one-level solution heat exchanger is communicated with, first-stage generator also has pipeline to be communicated with the driving thermal medium, evaporimeter also has pipeline to be communicated with cooled medium, is communicated with through the cooling medium pipeline between one-level absorber and the first-stage condenser; Second-stage generator, secondary condenser, the two-step throttle valve, secondary absorber, secondary solution pump and secondary solution heat exchanger, and by means of the one-level cooling flow, form the secondary cooling flow---link to each other by the refrigerant vapour passage between second-stage generator and the secondary condenser, secondary condenser is communicated with first-stage condenser through the two-step throttle valve again, the refrigerant vapour channel connection is arranged between first-stage generator and the secondary absorber, the concentrated solution pipeline is arranged respectively between secondary absorber and the second-stage generator, weak solution pipeline and through the secondary solution pump, the secondary solution heat exchanger is communicated with, second-stage generator also has pipeline to be communicated with the driving thermal medium, is communicated with through the cooling medium pipeline between secondary absorber and the secondary condenser; Compound connection between the two refrigeration stream journeys is achieved in that between the first-stage condenser of the secondary condenser of secondary cooling flow and one-level cooling flow has cryogen liquid channel connection through the two-step throttle valve, be connected through the refrigerant vapour passage between first-stage generator and the secondary absorber, be communicated with and make driving thermal medium flow through successively first-stage generator and second-stage generator heat release by driving hot medium pipeline between first-stage generator and the second-stage generator.
2. on flow process, one-level cooling flow---weak solution is squeezed into first-stage generator by the one-level solution pump, the effect that is driven heat discharges refrigerant vapour and enters first-stage condenser, the refrigerant vapour heat release is condensed and enters evaporimeter after one-level choke valve throttling step-down in cooling medium, obtaining the thermal evaporation that cooled medium passes to becomes refrigerant vapour to enter the one-level absorber, absorbed and heat release by concentrated solution from first-stage generator, the concentrated solution of first-stage generator enters the one-level absorber through the one-level solution heat exchanger, absorbing becomes weak solution behind the refrigerant vapour of flash-pot again, flow through successively one-level absorber and first-stage condenser of cooling medium taken away heat, and cooled medium turnover evaporimeter is lowered the temperature; Secondary cooling flow---weak solution is squeezed into second-stage generator by the secondary solution pump, weak solution is driven heat in second-stage generator effect discharges refrigerant vapour and enters secondary condenser, heat release is condensed into liquid behind the cooling medium of the secondary condenser of flowing through, condensate liquid enters the one-level cooling flow and finally become refrigerant vapour again in first-stage generator and is released after the throttling of two-step throttle valve, the concentrated solution of second-stage generator enters secondary absorber through the secondary solution heat exchanger, absorption becomes weak solution after from the refrigerant vapour of first-stage generator again, flow through successively secondary absorber and secondary condenser of cooling medium taken away heat, drive thermal medium flow through successively first-stage generator and second-stage generator heat release, it is characterized in that: one-level cooling flow and secondary cooling flow form integrated unit, the utilization of one-level cooling flow drives the high temperature section refrigeration of heat and provides refrigerant vapour to the secondary cooling flow, and the utilization of secondary cooling flow drives the low-temperature zone refrigeration of heat and provides refrigerant medium to the one-level cooling flow.
Description of drawings:
Fig. 1 is according to provided by the present invention, can realize the system architecture and the schematic flow sheet of the composite absorption heat pump of one-level and secondary combined heat-pump function.
Fig. 2 is according to provided by the present invention, can realize the system architecture and the schematic flow sheet of the composite absorption type compressor of one-level and secondary compound-refrigerating function.
Fig. 3 is the system architecture and the schematic flow sheet of the comparatively approaching secondary absorption heat pump of a kind of and the present invention.
Among the figure, 1-second-stage generator, 2-secondary condenser, 3-two-step throttle valve, 4-secondary absorber, 5-secondary solution pump, 6-secondary solution heat exchanger, 7-first-stage generator, 8-first-stage condenser, 9-one-level choke valve, the 10-evaporimeter, 11-one-level absorber, 12-one-level solution pump, 13-one-level solution heat exchanger, 14-cryogen liquid recirculation pump.
The specific embodiment:
Describe the present invention in detail below in conjunction with accompanying drawing and example.
With according to provided by the present invention, can realize that the composite absorption heat pump of one-level and secondary combined heat-pump function is an example, as shown in Figure 1, the object of the present invention is achieved like this:
The present invention is by being made up of second-stage generator 1, secondary condenser 2, two-step throttle valve 3, secondary absorber 4, secondary solution pump 5, secondary solution heat exchanger 6, first-stage generator 7, first-stage condenser 8, one-level choke valve 9, evaporimeter 10, one-level absorber 11, one-level solution pump 12, one-level solution heat exchanger 13 and cryogen liquid recirculation pump 14; First-stage generator 7, first-stage condenser 8, one-level choke valve 9, evaporimeter 10, one-level absorber 11, one-level solution pump 12 and one-level solution heat exchanger 13 formed one-level heat pump flowsheet and structures---link to each other by the refrigerant vapour passage between first-stage generator 7 and the first-stage condenser 8, first-stage condenser 8 is communicated with evaporimeter 10 through one-level choke valve 9 again, evaporimeter 10 also has refrigerant vapour channel connection one-level absorber 11, between one-level absorber 11 and the first-stage generator 7 the concentrated solution pipeline is arranged respectively, weak solution pipeline and through one-level solution pump 12, one-level solution heat exchanger 13 is communicated with, first-stage generator 7 also has pipeline to be communicated with the driving thermal medium, evaporimeter 10 also has pipeline to be communicated with the waste heat medium, is communicated with through the heated medium pipeline between one-level absorber 11 and the first-stage condenser 8; Second-stage generator 1, secondary condenser 2, two-step throttle valve 3, secondary absorber 4, secondary solution pump 5 and secondary solution heat exchanger 6, and by means of the one-level heat pump flowsheet, form the secondary heat pump flowsheet---link to each other by the refrigerant vapour passage between second-stage generator 1 and the secondary condenser 2, secondary condenser 2 is communicated with first-stage condenser 8 through two-step throttle valve 3 again, between first-stage generator 7 and the secondary absorber 4 the refrigerant vapour channel connection is arranged, between secondary absorber 4 and the second-stage generator 1 the concentrated solution pipeline is arranged respectively, weak solution pipeline and through secondary solution pump 5, secondary solution heat exchanger 6 is communicated with, second-stage generator 1 also has pipeline to be communicated with the driving thermal medium, is communicated with through the heated medium pipeline between secondary absorber 4 and the secondary condenser 2; Compound connection between two heat pump flowsheets is achieved in that between the first-stage condenser 8 of the secondary condenser 2 of secondary heat pump flowsheet and one-level heat pump flowsheet has cryogen liquid channel connection through two-step throttle valve 3, be connected through the refrigerant vapour passage between first-stage generator 7 and the secondary absorber 4, one-level heat pump flowsheet and secondary heat pump flowsheet are finished low-temperature zone and high temperature section heat supply successively.
Realize that concrete workflow of the present invention is as follows:
Weak solution in the one-level absorber 11 is squeezed into first-stage generator 7 by one-level solution pump 12, the effect that is driven heat discharges refrigerant vapour and enters first-stage condenser 8, the refrigerant vapour heat release is condensed and enters evaporimeter 10 after the 9 throttling step-down of one-level choke valve in heated medium, obtaining the thermal evaporation that the waste heat medium passes to becomes refrigerant vapour to enter one-level absorber 11, absorbed and heat release by concentrated solution from first-stage generator 7, concentrated solution in the first-stage generator 7 enters one-level absorber 11 through one-level solution heat exchanger 13, absorbing becomes weak solution behind the refrigerant vapour of flash-pot 10 again, flow through successively one-level absorber 11 and first-stage condenser 8 of heated medium taken away heat, and waste heat medium turnover evaporimeter 10 is lowered the temperature; Weak solution in the secondary absorber 4 is squeezed into second-stage generator 1 by secondary solution pump 5, weak solution is driven heat in second-stage generator 1 effect discharges refrigerant vapour and enters secondary condenser 2, heat release is condensed into liquid behind the heated medium of the secondary condenser 2 of flowing through, condensate liquid enters the one-level heat pump flowsheet and finally become refrigerant vapour again in first-stage generator 7 and is released after 3 throttlings of two-step throttle valve, the concentrated solution of second-stage generator 1 enters secondary absorber 4 through secondary solution heat exchanger 6, absorption becomes weak solution after from the refrigerant vapour of first-stage generator 7 again, flow through successively secondary absorber 4 and secondary condenser 2 of heated medium taken away heat, it is characterized in that: one-level heat pump flowsheet and secondary heat pump flowsheet form integrated unit, the one-level heat pump flowsheet is finished the low-temperature zone heat supply and is provided refrigerant vapour to the secondary heat pump flowsheet, and the secondary heat pump flowsheet is finished the high temperature section heat supply and provided refrigerant medium to the one-level heat pump flowsheet.
The composite absorption type compressor that is composited by one-level and secondary cooling flow shown in Figure 2, it is that realization is of the present invention like this: first-stage generator 7, first-stage condenser 8, one-level choke valve 9, evaporimeter 10, one-level absorber 11, one-level solution pump 12 and one-level solution heat exchanger 13 formed one-level cooling flow and structures---link to each other by the refrigerant vapour passage between first-stage generator 7 and the first-stage condenser 8, first-stage condenser 8 is communicated with evaporimeter 10 through one-level choke valve 9 again, evaporimeter 10 also has refrigerant vapour channel connection one-level absorber 11, between one-level absorber 11 and the first-stage generator 7 the concentrated solution pipeline is arranged respectively, weak solution pipeline and through one-level solution pump 12, one-level solution heat exchanger 13 is communicated with, first-stage generator 7 also has pipeline to be communicated with the driving thermal medium, evaporimeter 10 also has pipeline to be communicated with cooled medium, is communicated with through the cooling medium pipeline between one-level absorber 11 and the first-stage condenser 8; Second-stage generator 1, secondary condenser 2, two-step throttle valve 3, secondary absorber 4, secondary solution pump 5 and secondary solution heat exchanger 6, and by means of the one-level cooling flow, form the secondary cooling flow---link to each other by the refrigerant vapour passage between second-stage generator 1 and the secondary condenser 2, secondary condenser 2 is communicated with first-stage condenser 8 through two-step throttle valve 3 again, between first-stage generator 7 and the secondary absorber 4 the refrigerant vapour channel connection is arranged, between secondary absorber 4 and the second-stage generator 1 the concentrated solution pipeline is arranged respectively, weak solution pipeline and through secondary solution pump 5, secondary solution heat exchanger 6 is communicated with, second-stage generator 1 also has pipeline to be communicated with the driving thermal medium, is communicated with through the cooling medium pipeline between secondary absorber 4 and the secondary condenser 2; Compound connection between the two refrigeration stream journeys is achieved in that between the first-stage condenser 8 of the secondary condenser 2 of secondary cooling flow and one-level cooling flow has cryogen liquid channel connection through two-step throttle valve 3, be connected through the refrigerant vapour passage between first-stage generator 7 and the secondary absorber 4, be communicated with and make driving thermal medium flow through successively first-stage generator 7 and second-stage generator 1 heat release by driving hot medium pipeline between first-stage generator 7 and the second-stage generator 1.
Realize that concrete workflow of the present invention is as follows:
Weak solution in the one-level absorber 11 is squeezed into first-stage generator 7 by one-level solution pump 12, be subjected to the effect of high temperature driven heat to discharge refrigerant vapour and enter first-stage condenser 8, the refrigerant vapour heat release is condensed and enters evaporimeter 10 after the 9 throttling step-down of one-level choke valve in cooling medium, obtaining the thermal evaporation that cooled medium passes to becomes refrigerant vapour to enter one-level absorber 11, absorbed and heat release by concentrated solution from first-stage generator 7, the concentrated solution of first-stage generator 7 enters one-level absorber 11 through one-level solution heat exchanger 13, absorbing becomes weak solution behind the refrigerant vapour of flash-pot 10 again, flow through successively one-level absorber 11 and first-stage condenser 8 of cooling medium taken away heat, and cooled medium turnover evaporimeter 10 is lowered the temperature; The weak solution of secondary absorber 4 is squeezed into second-stage generator 1 by secondary solution pump 5, weak solution is driven heat in second-stage generator 1 effect discharges refrigerant vapour and enters secondary condenser 2, heat release is condensed into liquid behind the cooling medium of the secondary condenser 2 of flowing through, condensate liquid enters the one-level cooling flow and finally become refrigerant vapour again in first-stage generator 7 and is released after 3 throttlings of two-step throttle valve, the concentrated solution of second-stage generator 1 enters secondary absorber 4 through secondary solution heat exchanger 6, absorption becomes weak solution after from the refrigerant vapour of first-stage generator 7 again, flow through successively secondary absorber 4 and secondary condenser 2 of cooling medium taken away heat, drive thermal medium flow through successively first-stage generator 7 and second-stage generator 1 heat release, it is characterized in that: one-level cooling flow and secondary cooling flow form integrated unit, the utilization of one-level cooling flow drives the high temperature section refrigeration of heat and provides refrigerant vapour to the secondary cooling flow, and the utilization of secondary cooling flow drives the low-temperature zone refrigeration of heat and provides refrigerant medium to the one-level cooling flow.
The system architecture and the flow chart of the existing two-stage first class absorption heat pump that is among the present invention to be comprised shown in Figure 3.It and the present invention have bigger difference:
1. on the structure, its one-level flow process of being made up of first-stage generator, one-level absorber, evaporimeter, one-level solution pump etc. is except that being responsible for to two-stage process provides refrigerant vapour, its external heat supply link is only finished by the one-level absorber, and this has influenced the performance index in the broad heating range largely.
2. the main purpose of this unit is to realize high heat supply temperature, and performance index is low.Relatively the present invention, its heat supply temperature height; But in lower identical heating range, its performance index is low.In other words, the coupling of the running parameter of different structure unit and performance index has mutual restriction.
We can say that the introducing of first-stage condenser has brought the difference of structure, running parameter and performance index, the two belongs to the unit on the different meanings.
Adopt the data of real case to further specify the present invention below:
Existing 42 ℃ of abundant residual heat resources, the temperature drop that allows to utilize is 7 ℃; For ease of relatively, difference is utilized the waste heat supply temperature of scheme to change and is 42 ℃/35 ℃, and the evaporating temperature of getting cryogen liquid in the evaporimeter is 33 ℃; The flow that is heated fluid is that 50kg/s, initial temperature are 68 ℃ water, is heated to 110 ℃ and 120 ℃ respectively; Energy-saving benefit when relatively adopting following different schemes respectively: 1. adopt single-stage first kind absorption type heat pump assembly; 2. adopt two-stage first class absorption heat pump unit that comprise among the present invention, as shown in Figure 3; 3. adopt composite absorption heat pump unit of the present invention.
Carry out heating power with regard to such scheme respectively and calculate, obtain following result:
1. when fluid being heated to 110 ℃:
1. scheme can only be heated to 94 ℃ from 66 ℃ with fluid, and unit thermic load 5861KW, performance index are 1.67, and the UTILIZATION OF VESIDUAL HEAT IN amount is 2307KW.
2. scheme can be heated to 110 ℃ from 66 ℃ with fluid, and unit thermic load 9211KW, unit performance index are 1.356, and the UTILIZATION OF VESIDUAL HEAT IN amount is 2420KW.
3. scheme can be heated to 110 ℃ from 66 ℃ with fluid, and unit thermic load 9211KW, unit performance index are 1.417, and the UTILIZATION OF VESIDUAL HEAT IN amount is 2712KW.
2. when fluid being heated to 120 ℃:
1. scheme can only be heated to 94 ℃ from 66 ℃ with fluid, and unit thermic load 5861KW, performance index are 1.67, and the UTILIZATION OF VESIDUAL HEAT IN amount is 2307KW.
Scheme 2. can be with fluid when 66 ℃ be heated to 120 ℃, and unit thermic load 11304KW, performance index are 1.358, and the UTILIZATION OF VESIDUAL HEAT IN amount is 2979KW.
Scheme 3. can be with fluid when 66 ℃ be heated to 120 ℃, and unit thermic load 11304KW, performance index are 1.377, and the UTILIZATION OF VESIDUAL HEAT IN amount is 3094KW.
The result of calculation explanation:
1. composite adsorption type unit provided by the present invention has under these conditions embodied the heat supply temperature scope of existing broad, higher heat supply temperature (than single-stage), and the comprehensive advantage of performance index height (than two-stage shown in Figure 3) is arranged again.
2. the occasion that need change for heat supply temperature wide ranges, heat supply temperature height and load and temperature, as remote central heating, the low time period of heat supply temperature the energy-saving benefit height---heat supply temperature is low more, the unit performance index is high more, more near the one-level source pump; Heat supply temperature is high more, approaching more source pump as shown in Figure 3.Such occasion, the limitation of single one-level heat pump and secondary source pump as shown in Figure 3 is very big---and one-level source pump heat supply temperature is low, can only be operated in low heat supply temperature district; Secondary source pump heat supply temperature as shown in Figure 3 is wide and high, but heat supply temperature when low its performance index far below the performance index of one-level source pump.This has illustrated meaning of the present invention largely.
In like manner, when employing the present invention is as shown in Figure 2 freezed, the driving heat of higher temperature is used for the higher one-level cooling flow of performance index, the driving heat that can't continue to participate in one-level flow process refrigeration after temperature reduces enters the second-stage generator heat release, realize its refrigeration in the secondary cooling flow, reach the degree of depth that drives heat and utilize purpose.
The effect that the technology of the present invention can realize---composite absorption heat pump (type I) proposed by the invention has following effect and advantage:
1. as heat pump, unit has higher performance index when having the interval and higher heat supply temperature of wider heat supply temperature, can realize the deep exploitation of waste heat.
2. as refrigeration machine, can realize driving the deep exploitation of heat, especially utilize low temperature to drive when heat is freezed and to realize largely the benefit of freezing.
3. integral structure, under the prerequisite that realizes same thermodynamic effects, the simplification of realization equipment and system, thus reduce largely equipment manufacturing cost.
4. carry out the adjusting of unit load and heating parameter in can be on a large scale, the occasion that be applied to load, the heat supply temperature excursion is bigger, such as remote high temperature heating, realizing that the interval aspect such as corresponding with performance index of different heating parameters, heat supply has comprehensive advantage.
Claims (1)
1. a composite absorption heat pump is made up of second-stage generator (1), secondary condenser (2), two-step throttle valve (3), secondary absorber (4), secondary solution pump (5), secondary solution heat exchanger (6), first-stage generator (7), first-stage condenser (8), one-level choke valve (9), evaporimeter (10), one-level absorber (11), one-level solution pump (12), one-level solution heat exchanger (13) and cryogen liquid recirculation pump (14); Between second-stage generator (1) and the secondary condenser (2) through the refrigerant vapour channel connection, secondary condenser (2) has cryogen liquid pipeline to be communicated with first-stage condenser (8) through two-step throttle valve (3), first-stage condenser (8) also has refrigerant vapour channel connection first-stage generator (7) and has cryogen liquid pipeline to be communicated with evaporimeter (10) through one-level choke valve (9), evaporimeter (10) also has refrigerant vapour channel connection one-level absorber (11), one-level absorber (11) has concentrated solution pipeline and weak solution pipeline respectively by one-level solution pump (12), and through one-level solution heat exchanger (13) connection first-stage generator (7), first-stage generator (7) also has refrigerant vapour channel connection secondary absorber (4), secondary absorber (4) has concentrated solution pipeline and weak solution pipeline respectively by secondary solution pump (5), and through secondary solution heat exchanger (6) connection second-stage generator (1), second-stage generator (1) and first-stage generator (7) also have the hot medium pipeline of driving to be communicated with the driving thermal medium respectively, evaporimeter (10) also has pipeline to be communicated with the waste heat medium, the heated medium pipeline is communicated with one-level absorber (11) successively, first-stage condenser (8), secondary absorber (4) and secondary condenser (2), it is characterized in that: by first-stage generator (7), first-stage condenser (8), evaporimeter (10), one-level absorber (11), the one-level heat pump flowsheet that one-level choke valve (9) and one-level solution heat exchanger (13) are formed, with by second-stage generator (1), secondary condenser (2), two-step throttle valve (3), secondary absorber (4) and secondary solution heat exchanger (6) and the secondary heat pump flowsheet of forming by means of the one-level heat pump flowsheet form integrated unit, the one-level heat pump flowsheet is finished the low-temperature zone heat supply and is provided refrigerant vapour to the secondary heat pump flowsheet, and the secondary heat pump flowsheet is finished the high temperature section heat supply and provided refrigerant medium to the one-level heat pump flowsheet; When the refrigeration machine, drive hot medium pipeline and be communicated with first-stage generator (7) and second-stage generator (1) successively, driving thermal medium flow through successively first-stage generator (7) and second-stage generator (1) heat release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101148612A CN101182962B (en) | 2007-11-25 | 2007-11-25 | Composite absorption heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101148612A CN101182962B (en) | 2007-11-25 | 2007-11-25 | Composite absorption heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182962A CN101182962A (en) | 2008-05-21 |
| CN101182962B true CN101182962B (en) | 2010-06-02 |
Family
ID=39448324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101148612A Active CN101182962B (en) | 2007-11-25 | 2007-11-25 | Composite absorption heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101182962B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706173A (en) * | 2009-11-11 | 2010-05-12 | 李华玉 | Two-stage first class absorption heat pump taking triple effect as first stage |
| CN102305489B (en) * | 2011-08-19 | 2015-04-29 | 李华玉 | Compound first-class absorption heat pump based on single-effect flow |
| CN104006567B (en) * | 2013-05-08 | 2016-08-24 | 李华玉 | Branch-cycle first-class absorption type heat pump |
| CN104807239B (en) * | 2014-03-27 | 2018-05-08 | 李华玉 | 4th class absorption heat pump and the 5th class absorption heat pump |
| CN105953465B (en) * | 2015-05-06 | 2020-05-01 | 李华玉 | Fourth type thermal driving compression-absorption heat pump |
| CN108507219A (en) * | 2017-02-28 | 2018-09-07 | 远大空调有限公司 | A kind of compound two-stage type lithium bromide absorption type heat pump and working method |
| CN207214513U (en) * | 2017-05-23 | 2018-04-10 | 北京华源泰盟节能设备有限公司 | A kind of multistage absorption heat pump and heat-exchange unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653117A (en) * | 1996-04-15 | 1997-08-05 | Gas Research Institute | Absorption refrigeration compositions containing thiocyanate, and absorption refrigeration apparatus |
| CN101000180A (en) * | 2006-12-27 | 2007-07-18 | 李华玉 | Two-stage and multistage absorption refrigeration machine |
| CN101000179A (en) * | 2006-12-31 | 2007-07-18 | 李华玉 | Two-stage and multi-stage absorption refrigeration machine |
| CN101004303A (en) * | 2007-01-08 | 2007-07-25 | 李华玉 | First category absorption heat pump with two poles and multiple stages |
-
2007
- 2007-11-25 CN CN2007101148612A patent/CN101182962B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653117A (en) * | 1996-04-15 | 1997-08-05 | Gas Research Institute | Absorption refrigeration compositions containing thiocyanate, and absorption refrigeration apparatus |
| CN101000180A (en) * | 2006-12-27 | 2007-07-18 | 李华玉 | Two-stage and multistage absorption refrigeration machine |
| CN101000179A (en) * | 2006-12-31 | 2007-07-18 | 李华玉 | Two-stage and multi-stage absorption refrigeration machine |
| CN101004303A (en) * | 2007-01-08 | 2007-07-25 | 李华玉 | First category absorption heat pump with two poles and multiple stages |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101182962A (en) | 2008-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101182962B (en) | Composite absorption heat pump | |
| CN101713599B (en) | Air-conditioning heat pump device | |
| CN101957092A (en) | Type III absorbing and generating system and type III absorbing heat pump | |
| CN106016821A (en) | First-class heat drive compression-absorption type heat pump | |
| CN101349486A (en) | Composite absorption type heat pump formed by increasing high temperature heat supply end | |
| CN101387454B (en) | Multifunctional CO2 air conditioner heat pump | |
| CN106440493A (en) | Fourth-kind heat drive compression-absorption type heat pump | |
| CN101493269B (en) | Low temperature heat pump air conditioning system | |
| CN105841401A (en) | First-kind heat drive compression-absorption type heat pump | |
| CN101825374B (en) | Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources | |
| CN101520251B (en) | Generation-absorption-reabsorption system and absorption unit type based on system | |
| CN201819475U (en) | Air-conditioner refrigeration equipment | |
| CN101093118B (en) | Single stage composite absorption type compressor | |
| CN101373112A (en) | Composite absorption type heat pump formed by increasing low temperature heat supply terminal | |
| CN101182961B (en) | Different grade composite first kind absorption heat pump | |
| CN101363666A (en) | Multiplex composite absorption heat pump (type I) | |
| CN100470166C (en) | Energy conserving heat exchanging device utilizing refrigerant | |
| CN100504243C (en) | Different-class compound absorption type refrigerator | |
| CN102072587B (en) | Air conditioning refrigeration equipment | |
| CN101799223B (en) | Entire-year three-use air source heat pump unit and method for operating same | |
| CN113091349A (en) | High-efficient absorption heat pump | |
| CN102519166A (en) | First-class absorption heat pump with section absorption | |
| CN101825364A (en) | Cascade high-temperature heat pump with gaseous intermediate-temperature heat source and double low-temperature heat sources | |
| CN107726665B (en) | Two-stage compression refrigeration heat pump circulation device and method based on reversible chemisorption heat release | |
| CN101545692B (en) | Heterogeneous composite absorption type heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 266555 Shandong Jiangshan Qingdao economic and Technological Development Zone, Road No. 123 Building 1 unit 5 Jiangshan Ruicheng room 2101 Patentee after: Li Huayu Address before: 257061, No. 271, two North Road, Dongying District, Shandong, Dongying, China University of Petroleum (Hua Dong) 7082501 Patentee before: Li Huayu |