CN102155811A - Double-temperature double-effect lithium bromide absorption refrigerating unit - Google Patents
Double-temperature double-effect lithium bromide absorption refrigerating unit Download PDFInfo
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Abstract
The invention discloses a double-temperature double-effect lithium bromide absorption refrigerating unit, which comprises a high-pressure generator circulating system and a low-pressure generator circulating system, wherein a lithium bromide solution is used as a working medium for the two circulating systems; the high-pressure generator circulating system is coupled with the low-pressure generator circulating system through a low-pressure generator (2), and comprises a high-pressure generator (1), a low-pressure generator (2), a condenser (3), a high-temperature throttling element (4), a low-temperature throttling element (9), a low-temperature evaporator (10), a low-pressure absorber (11), a low-pressure absorber solution pump (12) and a high-temperature heat exchanger (13); a refrigerant flow pipeline (20) is arranged in the low-pressure generator (2); and the low-pressure generator circulating system comprises the low-pressure generator (2), a condenser (3), a high-temperature throttling element (4), a high-temperature evaporator (5), a high-pressure absorber (6), a high-pressure absorber solution pump (7) and a low-temperature heat exchanger (8).
Description
Technical field
The present invention relates to a kind of two warm double-effect lithium bromide absorption chiller group, belong to the Refrigeration ﹠ Air-Conditioning equipment technical field.
Background technology
The current double-effect lithium bromide absorption chiller group basic technology principle that adopts mainly is made up of high pressure generator 1, low pressure generator 2, condenser 3, restricting element 40, evaporimeter 50, absorber 60, low temperature heat exchanger 8, high-temperature heat exchanger 12 and absorber solution pump 70 as shown in Figure 1.Be characterized in from the refrigerant vapour of high pressure generator 1 evaporation thermal source as low pressure generator 2, the condensate liquid that high pressure generator 1 generates enters condenser 3 backs to be mixed with the condensate liquid that comes from low pressure generator 2, after the throttling of restricting element 40, send into evaporimeter 50, outwards export cold.The refrigerant vapour that produces from evaporimeter 50 enters absorber 60 and is absorbed by bromize lithium concentrated solution, afterwards, the weak solution of absorber 60 bottoms is regenerated by 70 pressurizations of absorber solution pump and by being delivered to again in high pressure generator 1 and the low pressure generator 2 after low temperature heat exchanger 8 and high-temperature heat exchanger 12 and the bromize lithium concentrated solution backheat.The economic benefits and social benefits circulation is higher for the utilization ratio of high temperature heat source (common more than 150 ℃), has reduced and has adopted the irreversible heat transfer loss of single-action circulation, but the low-temperature receiver of a temperature can only be provided usually.In recent years, the humiture autonomous control system is subjected to extensive concern at home and abroad gradually, its core is the temperature in the air-treatment, two control of humidity parameter to be changed into respectively by original means (7 ℃ cryogenic freezing water) controlled by two means (dry fresh air dehumidification and 18 ℃ of high temperature cold water coolings), thereby realize higher efficiency in the air-conditioning processing procedure, this just objectively provides the requirement in double-temperature refrigerator source to refrigeration machine.Existing at present double-temperature refrigerator water unit based on the steam compression type refrigeration circulation, it relies on the high-quality electric energy of consumption to drive, and the utilizable occasion of steam and other high-temperature residual heat (common more than 150 ℃) is being arranged, a kind of double-effect absorption refrigerating machine group in double-temperature refrigerator source that can provide is provided is just seemed very necessary.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of two warm double-effect lithium bromide absorption chiller group, when this unit carries out cascaded utilization of energy by the economic benefits and social benefits circulation to high temperature heat source, realized providing the purpose of a low-temperature receiver than conventional double-effect lithium bromide refrigeration unit more, can be applicable to the humiture autonomous control system, to satisfy its requirement to the different temperatures low-temperature receiver of elimination sensible heat, latent heat.This unit has the advantages that irreversible loss is little, multi-functional, adjusting function is good, and feasibility is strong, is easy to apply.
In order to solve the problems of the technologies described above, the invention provides a kind of two warm double-effect lithium bromide absorption chiller group, comprise and all adopt the high pressure generator circulatory system and the low pressure generator circulatory system of lithium-bromide solution as working medium; The high pressure generator circulatory system and the low pressure generator circulatory system are coupled by low pressure generator;
The high pressure generator circulatory system comprises high pressure generator, low pressure generator, condenser, high temperature restricting element, low temperature restricting element, cryogenic vaporizer, low-pressure absorber, low-pressure absorber solution pump and high-temperature heat exchanger; Being provided with refrigerant flow in low pressure generator threads a pipe;
The refrigerant vapour outlet of high pressure generator links to each other with the inlet that refrigerant flow is threaded a pipe, and the outlet that refrigerant flow is threaded a pipe is connected with the liquid refrigerant of condenser inlet; The outlet of condenser is connected with the inlet of high-temperature evaporator after by the high temperature restricting element, the liquid refrigerant outlet of high-temperature evaporator links to each other with low-pressure absorber with cryogenic vaporizer successively by behind the low temperature restricting element, low-pressure absorber is by linking to each other with the weak solution inlet of high-temperature heat exchanger behind the low-pressure absorber solution pump, the weak solution outlet of high-temperature heat exchanger links to each other with the weak solution inlet of high pressure generator, the concentrated solution outlet of high pressure generator links to each other with the concentrated solution inlet of high-temperature heat exchanger, and the concentrated solution outlet of high-temperature heat exchanger links to each other with the concentrated solution inlet of low-pressure absorber; Therefore, form lithium-bromide solution loop I between low-pressure absorber, low-pressure absorber solution pump, high-temperature heat exchanger and the high pressure generator;
The low pressure generator circulatory system comprises low pressure generator, condenser, high temperature restricting element, high-temperature evaporator, high pressure absorber, high pressure absorber solution pump and low temperature heat exchanger;
The refrigerant vapour outlet of low pressure generator is connected with the refrigerant vapour inlet of condenser, the outlet of condenser by the high temperature restricting element after the inlet of high-temperature evaporator be connected, the refrigerant vapour outlet of high-temperature evaporator enters the mouth with the refrigerant vapour of high pressure absorber and is connected; The outlet of high pressure absorber is by linking to each other with the weak solution inlet of low temperature heat exchanger behind the high pressure absorber solution pump, the weak solution outlet of low temperature heat exchanger links to each other with the weak solution inlet of low pressure generator, the concentrated solution outlet of low pressure generator links to each other with the concentrated solution inlet of low temperature heat exchanger, and the concentrated solution outlet of low temperature heat exchanger links to each other with the concentrated solution inlet of high pressure absorber; Therefore, form lithium-bromide solution loop II between high pressure absorber, high pressure absorber solution pump, low temperature heat exchanger and the low pressure generator.
Improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with the import of low pressure generator thermal source, the outlet of low pressure generator thermal source, low pressure generator cooling water inlet and low pressure generator coolant outlet on the low pressure generator; Be respectively equipped with low pressure generator heat(ing) coil and low pressure generator cooling coil in the low pressure generator, import of low pressure generator thermal source and the outlet of low pressure generator thermal source are connected with the low pressure generator heat(ing) coil respectively; Low pressure generator cooling water inlet and low pressure generator coolant outlet are connected with the low pressure generator cooling coil respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with the outlet of import of high pressure generator thermal source and high pressure generator thermal source on the high pressure generator; Coil pipe in the high pressure generator is connected with import of high pressure generator thermal source and the outlet of high pressure generator thermal source respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with condenser water inlet and condenser delivery port on the condenser; Coil pipe in the condenser is connected with condenser water inlet and condenser delivery port respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with high-temperature evaporator water inlet and high-temperature evaporator delivery port on the high-temperature evaporator; Coil pipe in the high-temperature evaporator is connected with high-temperature evaporator water inlet and high-temperature evaporator delivery port respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with high pressure absorber water inlet and high pressure absorber delivery port on the high pressure absorber; Coil pipe in the high pressure absorber is connected with high pressure absorber water inlet and high pressure absorber delivery port respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with cryogenic vaporizer water inlet and cryogenic vaporizer delivery port on the cryogenic vaporizer; Coil pipe in the cryogenic vaporizer is connected with cryogenic vaporizer water inlet and cryogenic vaporizer delivery port respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: be respectively equipped with low-pressure absorber water inlet and low-pressure absorber delivery port on the low-pressure absorber, the coil pipe in the low-pressure absorber links to each other with the low-pressure absorber delivery port with the low-pressure absorber water inlet respectively.
Further improvement as two warm double-effect lithium bromide absorption chiller groups of the present invention: the concentration of the lithium-bromide solution among the I of lithium-bromide solution loop is higher than the concentration of the lithium-bromide solution among the II of lithium-bromide solution loop, that is, the lithium-bromide solution concentration in the lithium-bromide solution concentration ratio low pressure generator circulatory system in the high pressure generator circulatory system is higher.
The present invention proposes a kind of new technical scheme on traditional economic benefits and social benefits lithium bromide absorbing type refrigeration round-robin basis, its mode by UTILIZATION OF VESIDUAL HEAT IN provides the double-temperature refrigerator source.The present invention relies on heat energy and solution recycle system that refrigerant vapour is risen to high pressure from low pressure, for heat energy drives.
The present invention compares with traditional economic benefits and social benefits lithium bromide absorbing type refrigeration circulation, has the following advantages:
1, can utilize waste heat to provide the double-temperature refrigerator source by Absorption Cooling System.Wherein high-temperature evaporator is exported high temperature cold water (as 18 ℃), cryogenic vaporizer output low-temperature cold water (as 7 ℃), and the output quantity of high temperature cold water and low-temperature cold water can flexible modulation.
2, can carry out cascade utilization to the thermal source of two kinds of temperature grades.Wherein high temperature heat source (about 150 ℃) is used for high pressure generator, and low-temperature heat source (about 120 ℃) is used for the additional heat of low pressure generator and supplies with.
3, require lower to high temperature heat source.Because low pressure generator circulation provides high temperature cold water (as 18 ℃), so the heat source temperature of the heat source temperature that needs of low pressure generator during than 7 ℃ of cold water of supply reduce, thereby make high pressure generator also reduce the requirement of high temperature heat source.
4, system can provide the health hot water of higher temperature.The health hot water that tradition economic benefits and social benefits refrigeration system with lithium bromide absorption is provided produces in condenser, be with from the condensation heat release of the refrigerant vapour of low pressure generator as thermal source; And health hot water produces in low pressure generator among the present invention, and therefore its thermal source can produce the health hot water of higher temperature from the condensation heat release of the unnecessary refrigerant vapour of high pressure generator.
The present invention there is no complicated technological process and changes on traditional double-effect lithium bromide absorption chiller group basis, can be the humiture autonomous control system double-temperature refrigerator source that utilizes waste heat solution is provided, system regulates flexibly, irreversible loss is little, have tangible cascaded utilization of energy characteristics, the all supporting maturation of the required parts of system, feasibility is strong, is easy to popularize and promote the use of.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is traditional double-effect lithium bromide absorption chiller process principle figure;
Fig. 2 is two warm double-effect lithium bromide absorption chiller process principle figure of the present invention.
The specific embodiment
Fig. 2 has provided a kind of two warm double-effect lithium bromide absorption chiller group, form by the high pressure generator circulatory system and the low pressure generator circulatory system, the high pressure generator circulatory system and the low pressure generator circulatory system all adopt lithium-bromide solution as working medium, and the high pressure generator circulatory system and the low pressure generator circulatory system are by low pressure generator 2 couplings.Specific as follows:
The high pressure generator circulatory system comprises high pressure generator 1, low pressure generator 2, condenser 3, high temperature restricting element 4, low temperature restricting element 9, cryogenic vaporizer 10, low-pressure absorber 11, high pressure generator solution pump 12 and high-temperature heat exchanger 13; In low pressure generator 2, be provided with refrigerant flow and thread a pipe 20.
Thread a pipe 20 inlet of outlet of the refrigerant vapour of high pressure generator 1 and refrigerant flow links to each other, and thread a pipe 20 outlet of refrigerant flow enters the mouth with the liquid refrigerant of condenser 3 and is connected; The outlet of condenser 3 is connected with the inlet of high-temperature evaporator 5 by high temperature restricting element 4 backs, the liquid refrigerant outlet of high-temperature evaporator 5 links to each other with low-pressure absorber 11 with cryogenic vaporizer 10 successively by low temperature restricting element 9 backs, described low-pressure absorber 11 links to each other with the weak solution inlet of high-temperature heat exchanger 13 by low-pressure absorber solution pump 12 backs, the weak solution outlet of high-temperature heat exchanger 13 links to each other with the weak solution inlet of high pressure generator 1, the concentrated solution outlet of high pressure generator 1 links to each other with the concentrated solution inlet of high-temperature heat exchanger 13, and the concentrated solution outlet of high-temperature heat exchanger 13 links to each other with the concentrated solution inlet of low-pressure absorber 11; That is, form lithium-bromide solution loop I between low-pressure absorber 11, low-pressure absorber solution pump 12, high-temperature heat exchanger 13 and the high pressure generator 1.
The low pressure generator circulatory system comprises low pressure generator 2, condenser 3, high temperature restricting element 4, high-temperature evaporator 5, high pressure absorber 6, high pressure absorber solution pump 7 and low temperature heat exchanger 8.
The refrigerant vapour outlet of low pressure generator 2 is connected with the refrigerant vapour inlet of condenser 3, the outlet of condenser 3 is connected by the inlet of high temperature restricting element 4 back high-temperature evaporators 5, and the refrigerant vapour outlet of high-temperature evaporator 5 is connected with the refrigerant vapour inlet of high pressure absorber 6; The outlet of high pressure absorber 6 links to each other with the weak solution inlet of low temperature heat exchanger 8 by high pressure absorber solution pump 7 backs, the weak solution outlet of low temperature heat exchanger 8 links to each other with the weak solution inlet of low pressure generator 2, the concentrated solution outlet of low pressure generator 2 links to each other with the concentrated solution inlet of low temperature heat exchanger 8, and the concentrated solution outlet of low temperature heat exchanger 8 links to each other with the concentrated solution inlet of high pressure absorber 6; Therefore, form lithium-bromide solution loop II between high pressure absorber 6, high pressure absorber solution pump 7, low temperature heat exchanger 8 and the low pressure generator 2.
Fill lithium-bromide solution in the I of lithium-bromide solution loop, lithium-bromide solution loop II also fills lithium-bromide solution, and the mass concentration of above-mentioned lithium-bromide solution is 45～60%, and with water as solvent.Lithium-bromide solution concentration among the I of lithium-bromide solution loop is higher than the lithium-bromide solution concentration (general high by 5%～10%) among the II of lithium-bromide solution loop
Therefore, in the present invention, cryogen is meant water, is the water that is evaporated from lithium-bromide solution.
Be respectively equipped with low pressure generator supplemental heat source import 151, low pressure generator supplemental heat source outlet 152, the additional cooling water inlet 161 of low pressure generator and low pressure generator on the low pressure generator 2 and replenish coolant outlet 162; Be respectively equipped with low pressure generator heat(ing) coil and low pressure generator cooling coil in the low pressure generator 2, and place the solution space of low pressure generator 2.Low pressure generator supplemental heat source import 151 and low pressure generator supplemental heat source outlet 152 are connected with the low pressure generator heat(ing) coil respectively; Low pressure generator replenishes cooling water inlet 161 and the additional coolant outlet 162 of low pressure generator is connected with the low pressure generator cooling coil respectively.Be respectively equipped with high pressure generator thermal source import 141 and high pressure generator thermal source outlet 142 on the high pressure generator 1; The coil pipe that is arranged in high pressure generator 1 inner chamber is connected with high pressure generator thermal source import 141 and high pressure generator thermal source outlet 142 respectively.Be respectively equipped with condenser water inlet 171 and condenser delivery port 172 on the condenser 3; The coil pipe that is arranged in condenser 3 inner chambers is connected with condenser water inlet 171 and condenser delivery port 172 respectively.Be respectively equipped with high-temperature evaporator water inlet 181 and high-temperature evaporator delivery port 182 on the high-temperature evaporator 5; The coil pipe that is arranged in high-temperature evaporator 5 inner chambers is connected with high-temperature evaporator water inlet 181 and high-temperature evaporator delivery port 182 respectively.Be respectively equipped with high pressure absorber water inlet 191 and high pressure absorber delivery port 192 on the high pressure absorber 6; The coil pipe that is arranged in high pressure absorber 6 inner chambers is connected with high pressure absorber water inlet 191 and high pressure absorber delivery port 192 respectively.Be respectively equipped with cryogenic vaporizer water inlet 201 and cryogenic vaporizer delivery port 202 on the cryogenic vaporizer 10; The coil pipe that is arranged in cryogenic vaporizer 10 inner chambers is connected with cryogenic vaporizer water inlet 201 and cryogenic vaporizer delivery port 202 respectively.Be respectively equipped with low-pressure absorber water inlet 211 and low-pressure absorber delivery port 212 on the low-pressure absorber 11, the coil pipe that is arranged in low-pressure absorber 11 inner chambers links to each other with low-pressure absorber delivery port 212 with low-pressure absorber water inlet 211 respectively.
High pressure generator thermal source import 141 and high pressure generator thermal source outlet 142 links to each other with high temperature heat source more than 150 ℃ respectively, thereby forms heating circuit, and the effect in this loop is that the evaporation to the interior lithium-bromide solution of high pressure generator 1 provides heat.
Low pressure generator thermal source import 151 and low pressure generator thermal source outlet 152 links to each other with low-temperature heat source below 120 ℃, thereby forms the supplementary heating loop, and the effect in this loop is where necessary to the evaporation additional heat of the interior lithium-bromide solution of low pressure generator 2.
Low pressure generator cooling water inlet 161 and low pressure generator coolant outlet 162 (also can adopt the cooling water water outlet from condenser 3 with the normal temperature cooling water of outside, the perhaps cooling water water outlet of low-pressure absorber 11 or high pressure absorber 6) the continuous loop that forms, replenish the chilled(cooling) water return (CWR) thereby form, the effect in this loop is to take away the unnecessary condensation latent heat of refrigerant vapour in the low pressure generator 2 where necessary.
The condenser water inlet 171 that matches with condenser 3 links to each other with the normal temperature cooling water (as 30 ℃) of outside with condenser delivery port 172 and forms the loop, the high-temperature evaporator water inlet 181 that matches with high-temperature evaporator 5 links to each other with outside high temperature cold water system (18 ℃/23 ℃) with high-temperature evaporator delivery port 182 and forms the loop, the high pressure absorber water inlet 191 that matches with high pressure absorber 6 links to each other with the normal temperature cooling water of outside with high pressure absorber delivery port 192 and forms the loop, and the low-pressure absorber water inlet 211 that matches with low-pressure absorber 11 links to each other with the normal temperature cooling water of outside with low-pressure absorber delivery port 212 and forms the loop; The cryogenic vaporizer water inlet 201 that matches with cryogenic vaporizer 10 links to each other with outside low-temperature cold water system (7 ℃/12 ℃) with cryogenic vaporizer delivery port 202 and forms the loop.The normal temperature cooling water is respectively condenser 3, high pressure absorber 6 and low-pressure absorber 11 cooling is provided.
During the actual use of above-mentioned two warm double-effect lithium bromide absorption chiller group, be filled with lithium-bromide solution (concentration is higher) in the lithium-bromide solution loop I (being the high pressure generator circulatory system), lithium-bromide solution loop II (being the low pressure generator circulatory system) also is filled with lithium-bromide solution (concentration is lower), and concrete action is as follows:
1, under the effect of high temperature heat source, the refrigerant vapour that lithium-bromide solution produced in the high pressure generator 1 enters refrigerant flow in the low pressure generator 2 and threads a pipe and carry out the condensation heat release in 20, and as the thermal source of the lithium-bromide solution in the low pressure generator 2; Enter in the condenser 3 from the liquid refrigerant inlet of condenser 3 from the thread a pipe liquid refrigerant that flows out 20 of refrigerant flow.
Meanwhile, the be heated refrigerant vapour that produced of the lithium-bromide solutions in the low pressure generator 2 enters in the condenser 3 from the refrigerant vapour inlet of condenser 3.
The cryogen of above-mentioned 2 kinds of different shapes converges in condenser 3, and is condensed into liquid refrigerant.
2, the liquid refrigerant that flows out from the outlet of condenser 3 is lowered the temperature by high temperature restricting element 4 backs, enters high-temperature evaporator 5 then.
Wherein a part of cryogen evaporates in high-temperature evaporator 5, produce high temperature cold water (as 18 ℃, discharge from high-temperature evaporator delivery port 182), the refrigerant vapour that is generated enters in the high pressure absorber 6 by the refrigerant vapour outlet of high-temperature evaporator 5 and the refrigerant vapour inlet of high pressure absorber 6, this refrigerant vapour is absorbed by the lithium-bromide solution in the high pressure absorber 6, the bromize lithium dilute solution that forms enters low temperature heat exchanger 8 after by high pressure absorber solution pump 7, and the effect of low temperature heat exchanger 8 is that it is carried out backheat.The bromize lithium dilute solution that flows out from low temperature heat exchanger 8 enters in the low pressure generator 2, and mixes with lithium-bromide solution in the low pressure generator 2, and the interior lithium-bromide solution of low pressure generator becomes bromize lithium concentrated solution by constantly being subjected to thermal evaporation; Bromize lithium concentrated solution is again by entering in the high pressure absorber 6 behind the low temperature heat exchanger 8 (effect of low temperature heat exchanger 8 is that it is carried out backheat) then.Therefore, form lithium-bromide solution loop II between high pressure absorber 6, high pressure absorber solution pump 7, low temperature heat exchanger 8 and the low pressure generator 2.
Another part liquid refrigerant in the high-temperature evaporator 5 is further lowered the temperature by low temperature restricting element 9, enter into cryogenic vaporizer 10 evaporations then, produce low-temperature cold water (as 7 ℃, discharge from cryogenic vaporizer delivery port 202), the refrigerant vapour that generates enters in the low-pressure absorber 11, this refrigerant vapour is absorbed by the lithium-bromide solution in the low-pressure absorber 11, the bromize lithium dilute solution that forms enters high-temperature heat exchanger 13 after by low-pressure absorber solution pump 12, and the effect of high-temperature heat exchanger 13 is that it is carried out backheat.The bromize lithium dilute solution that flows out from high-temperature heat exchanger 13 enters in the high pressure generator 1, and mixes with lithium-bromide solution in the high pressure generator 1, and high pressure generator 1 interior lithium-bromide solution becomes bromize lithium concentrated solution by constantly being subjected to thermal evaporation; Bromize lithium concentrated solution is again by entering in the low-pressure absorber 11 behind the high-temperature heat exchanger 13 (effect of high-temperature heat exchanger 13 is that it is carried out backheat) then.Therefore, form lithium-bromide solution loop I between low-pressure absorber 11, low-pressure absorber solution pump 12, high-temperature heat exchanger 13 and the high pressure generator 1.
3, when the cold of cryogenic vaporizer 10 outputs equals the cold of high-temperature evaporator 5 outputs, the condensation latent heat that is discharged from high pressure generator 1 refrigerant vapour just can be used for bearing whole thermic loads of low pressure generator 2, closes supplemental heat source and the additional cooling water that enters low pressure generator 2 this moment; That is, low pressure generator thermal source import 151 and low pressure generator thermal source outlet 152 is in closed condition; Low pressure generator cooling water inlet 161 and low pressure generator coolant outlet 162 also are in closed condition.
When the cold of cryogenic vaporizer 10 outputs is higher than the cold of high-temperature evaporator 5 outputs, close the supplemental heat source (low pressure generator thermal source import 151 and low pressure generator thermal source outlet 152 are in closed condition) of low pressure generator 2, and strengthen the supply (increasing the flow of low pressure generator cooling water inlet 161 and low pressure generator coolant outlet 162) that low pressure evaporator 2 replenishes cooling water, thereby take away unnecessary condensation latent heat from high pressure evaporator 5 refrigerant vapours.Heated cooling water Yin Wendu higher (as 60 ℃, flowing out from low pressure generator coolant outlet 162) can be used as health hot water output in the low pressure generator 2.
When the cold of cryogenic vaporizer 10 output during less than the cold of high-temperature evaporator 5 outputs, then close the additional cooling water (low pressure generator cooling water inlet 161 and low pressure generator coolant outlet 162 are in closed condition) of low pressure generator 2, and the supplemental heat source (low pressure generator thermal source import 151 and low pressure generator thermal source outlet 152 are in conducting state with the low-temperature heat source in the external world) of enabling low pressure generator 2, thereby remedy the deficiency of high pressure evaporator 5 refrigerant vapour condensation latent heat, realize adjusting thus double-temperature refrigerator source output quantity.
The operating pressure of each critical piece was followed successively by high pressure generator 1, low pressure generator 2/ condenser 3, high-temperature evaporator 5/ high pressure absorber 6, cryogenic vaporizer 10/ low-pressure absorber 11 by arranging from big to small when two warm double-effect lithium bromide absorption chiller group of the present invention was worked.Arrange from big to small by operating temperature and to be followed successively by: high pressure generator: 1, low pressure generator 2, condenser 3/ high pressure absorber 6/ low-pressure absorber 11, high-temperature evaporator 5, cryogenic vaporizer 10.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (9)
1. two temperature double-effect lithium bromide absorption chiller groups is characterized in that: comprise and all adopt the high pressure generator circulatory system and the low pressure generator circulatory system of lithium-bromide solution as working medium; The described high pressure generator circulatory system and the low pressure generator circulatory system are by low pressure generator (2) coupling;
The described high pressure generator circulatory system comprises high pressure generator (1), low pressure generator (2), condenser (3), high temperature restricting element (4), low temperature restricting element (9), cryogenic vaporizer (10), low-pressure absorber (11), low-pressure absorber solution pump (12) and high-temperature heat exchanger (13); In low pressure generator (2), be provided with refrigerant flow thread a pipe (20);
Thread a pipe with the refrigerant flow inlet of (20) of the refrigerant vapour of high pressure generator (1) outlet links to each other, and the thread a pipe outlet of (20) of refrigerant flow enters the mouth with the liquid refrigerant of condenser (3) and is connected; The outlet of condenser (3) is connected with the inlet of high-temperature evaporator (5) by high temperature restricting element (4) back, the liquid refrigerant outlet of high-temperature evaporator (5) links to each other with low-pressure absorber (11) with cryogenic vaporizer (10) successively by low temperature restricting element (9) back, described low-pressure absorber (11) links to each other with the weak solution inlet of high-temperature heat exchanger (13) by low-pressure absorber solution pump (12) back, the weak solution outlet of high-temperature heat exchanger (13) links to each other with the weak solution inlet of high pressure generator (1), the concentrated solution outlet of high pressure generator (1) links to each other with the concentrated solution inlet of high-temperature heat exchanger (13), and the concentrated solution outlet of high-temperature heat exchanger (13) links to each other with the concentrated solution inlet of low-pressure absorber (11); Therefore, form lithium-bromide solution loop I between low-pressure absorber (11), low-pressure absorber solution pump (12), high-temperature heat exchanger (13) and the high pressure generator (1);
The described low pressure generator circulatory system comprises low pressure generator (2), condenser (3), high temperature restricting element (4), high-temperature evaporator (5), high pressure absorber (6), high pressure absorber solution pump (7) and low temperature heat exchanger (8);
The refrigerant vapour outlet of described low pressure generator (2) is connected with the refrigerant vapour inlet of condenser (3), the outlet of condenser (3) is connected by the inlet of high temperature restricting element (4) back high-temperature evaporator (5), and the refrigerant vapour outlet of high-temperature evaporator (5) is connected with the refrigerant vapour inlet of high pressure absorber (6); The outlet of high pressure absorber (6) links to each other with the weak solution inlet of low temperature heat exchanger (8) by high pressure absorber solution pump (7) back, the weak solution outlet of low temperature heat exchanger (8) links to each other with the weak solution inlet of low pressure generator (2), the concentrated solution outlet of low pressure generator (2) links to each other with the concentrated solution inlet of low temperature heat exchanger (8), and the concentrated solution outlet of low temperature heat exchanger (8) links to each other with the concentrated solution inlet of high pressure absorber (6); Therefore, form lithium-bromide solution loop II between high pressure absorber (6), high pressure absorber solution pump (7), low temperature heat exchanger (8) and the low pressure generator (2).
2. two warm double-effect lithium bromide absorption chiller group according to claim 1 is characterized in that: be respectively equipped with low pressure generator thermal source import (151), the outlet of low pressure generator thermal source (152), low pressure generator cooling water inlet (161) and low pressure generator coolant outlet (162) on the described low pressure generator (2); Be respectively equipped with low pressure generator heat(ing) coil and low pressure generator cooling coil in the low pressure generator (2), described low pressure generator thermal source import (151) and low pressure generator thermal source outlet (152) are connected with the low pressure generator heat(ing) coil respectively; Described low pressure generator cooling water inlet (161) and low pressure generator coolant outlet (162) are connected with the low pressure generator cooling coil respectively.
3. two warm double-effect lithium bromide absorption chiller group according to claim 2 is characterized in that: be respectively equipped with high pressure generator thermal source import (141) and high pressure generator thermal source outlet (142) on the described high pressure generator (1); Coil pipe in the high pressure generator (1) is connected with high pressure generator thermal source import (141) and high pressure generator thermal source outlet (142) respectively.
4. two warm double-effect lithium bromide absorption chiller group according to claim 3 is characterized in that: be respectively equipped with condenser water inlet (171) and condenser delivery port (172) on the described condenser (3); Coil pipe in the condenser (3) is connected with condenser water inlet (171) and condenser delivery port (172) respectively.
5. two warm double-effect lithium bromide absorption chiller group according to claim 4 is characterized in that: be respectively equipped with high-temperature evaporator water inlet (181) and high-temperature evaporator delivery port (182) on the described high-temperature evaporator (5); Coil pipe in the high-temperature evaporator (5) is connected with high-temperature evaporator water inlet (181) and high-temperature evaporator delivery port (182) respectively.
6. two warm double-effect lithium bromide absorption chiller group according to claim 5 is characterized in that: be respectively equipped with high pressure absorber water inlet (191) and high pressure absorber delivery port (192) on the described high pressure absorber (6); Coil pipe in the high pressure absorber (6) is connected with high pressure absorber water inlet (191) and high pressure absorber delivery port (192) respectively.
7. two warm double-effect lithium bromide absorption chiller group according to claim 6 is characterized in that: be respectively equipped with cryogenic vaporizer water inlet (201) and cryogenic vaporizer delivery port (202) on the described cryogenic vaporizer (10); Coil pipe in the cryogenic vaporizer (10) is connected with cryogenic vaporizer water inlet (201) and cryogenic vaporizer delivery port (202) respectively.
8. two warm double-effect lithium bromide absorption chiller group according to claim 7, it is characterized in that: be respectively equipped with low-pressure absorber water inlet (211) and low-pressure absorber delivery port (212) on the described low-pressure absorber (11), the coil pipe in the low-pressure absorber (11) links to each other with low-pressure absorber delivery port (212) with low-pressure absorber water inlet (211) respectively.
9. two warm double-effect lithium bromide absorption chiller group according to claim 1, it is characterized in that: the concentration of the lithium-bromide solution among the described lithium-bromide solution loop I is higher than the concentration of the lithium-bromide solution among the II of lithium-bromide solution loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101114504A CN102155811A (en) | 2011-04-30 | 2011-04-30 | Double-temperature double-effect lithium bromide absorption refrigerating unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101114504A CN102155811A (en) | 2011-04-30 | 2011-04-30 | Double-temperature double-effect lithium bromide absorption refrigerating unit |
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| CN102155811A true CN102155811A (en) | 2011-08-17 |
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| CN2011101114504A Pending CN102155811A (en) | 2011-04-30 | 2011-04-30 | Double-temperature double-effect lithium bromide absorption refrigerating unit |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175332A (en) * | 2013-04-07 | 2013-06-26 | 东南大学 | Two-stage absorption refrigeration circulation system based on double working pairs and refrigeration method thereof |
| CN103968595A (en) * | 2014-05-15 | 2014-08-06 | 上海理工大学 | Absorption type automotive air conditioner |
| CN104848582A (en) * | 2015-05-08 | 2015-08-19 | 双良节能系统股份有限公司 | Two stage type double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN105135742A (en) * | 2015-09-06 | 2015-12-09 | 哈尔滨工业大学 | Lithium bromide absorption refrigerating cycle system with dual evaporators |
| CN106969542A (en) * | 2017-02-15 | 2017-07-21 | 上海交通大学 | Absorption heat pump circulating system |
| CN107477905A (en) * | 2017-08-04 | 2017-12-15 | 上海交通大学 | Reabsorb with absorbing the Absorption heat-transformer system and method that heat exchange occurs and combines |
| CN108413642A (en) * | 2018-04-03 | 2018-08-17 | 中国科学院广州能源研究所 | A kind of BrLi chiller of integrated multi-operation mode |
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| CN109269142A (en) * | 2018-11-14 | 2019-01-25 | 嘉兴学院 | Ammonium hydroxide double effect absorption refrigeration system |
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| CN109631393A (en) * | 2018-11-28 | 2019-04-16 | 山西大学 | The double-effect lithium bromide absorption type refrigerating plant of fume afterheat and solar energy coupling driving |
| CN113324347A (en) * | 2021-05-20 | 2021-08-31 | 浙江理工大学 | Double-absorption working medium heat storage type open type absorption heat exchange system |
| CN113324346A (en) * | 2021-05-20 | 2021-08-31 | 浙江理工大学 | Double-effect/two-stage open type absorption heat pump |
| CN108413642B (en) * | 2018-04-03 | 2024-04-26 | 中国科学院广州能源研究所 | Integrated multi-working-mode lithium bromide refrigerating unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19538383A1 (en) * | 1995-10-14 | 1997-04-17 | Gea Luftkuehler Happel Gmbh | System for controlling cold absorption unit for air chilling units |
| EP0978694A1 (en) * | 1998-01-29 | 2000-02-09 | Sanyo Electric Co., Ltd. | Absorption type refrigerating machine |
| JP2001518176A (en) * | 1997-03-21 | 2001-10-09 | ガス、リサーチ、インスティチュート | Improved control for absorption coolers |
| WO2002002997A1 (en) * | 2000-06-30 | 2002-01-10 | American Standard, Inc. | Compact absorption chiller and solution flow scheme therefor |
| CN101776345A (en) * | 2010-01-29 | 2010-07-14 | 浙江大学 | High-efficient 1.x-effect absorption-type refrigeration device |
-
2011
- 2011-04-30 CN CN2011101114504A patent/CN102155811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19538383A1 (en) * | 1995-10-14 | 1997-04-17 | Gea Luftkuehler Happel Gmbh | System for controlling cold absorption unit for air chilling units |
| JP2001518176A (en) * | 1997-03-21 | 2001-10-09 | ガス、リサーチ、インスティチュート | Improved control for absorption coolers |
| EP0978694A1 (en) * | 1998-01-29 | 2000-02-09 | Sanyo Electric Co., Ltd. | Absorption type refrigerating machine |
| WO2002002997A1 (en) * | 2000-06-30 | 2002-01-10 | American Standard, Inc. | Compact absorption chiller and solution flow scheme therefor |
| CN101776345A (en) * | 2010-01-29 | 2010-07-14 | 浙江大学 | High-efficient 1.x-effect absorption-type refrigeration device |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175332A (en) * | 2013-04-07 | 2013-06-26 | 东南大学 | Two-stage absorption refrigeration circulation system based on double working pairs and refrigeration method thereof |
| CN103968595A (en) * | 2014-05-15 | 2014-08-06 | 上海理工大学 | Absorption type automotive air conditioner |
| CN104848582A (en) * | 2015-05-08 | 2015-08-19 | 双良节能系统股份有限公司 | Two stage type double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN104848582B (en) * | 2015-05-08 | 2017-05-24 | 双良节能系统股份有限公司 | Two stage type double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN105135742A (en) * | 2015-09-06 | 2015-12-09 | 哈尔滨工业大学 | Lithium bromide absorption refrigerating cycle system with dual evaporators |
| CN106969542A (en) * | 2017-02-15 | 2017-07-21 | 上海交通大学 | Absorption heat pump circulating system |
| CN107477905B (en) * | 2017-08-04 | 2020-06-12 | 上海交通大学 | Absorption type circulating system combining reabsorption and absorption heat exchange and method thereof |
| CN107477905A (en) * | 2017-08-04 | 2017-12-15 | 上海交通大学 | Reabsorb with absorbing the Absorption heat-transformer system and method that heat exchange occurs and combines |
| CN108592444A (en) * | 2018-02-06 | 2018-09-28 | 华北电力大学 | A kind of electric heat pump and the compound heat-exchange unit of absorption heat pump |
| CN108592444B (en) * | 2018-02-06 | 2023-10-31 | 华北电力大学 | Heat exchange unit combining electric heat pump and absorption heat pump |
| CN108413642A (en) * | 2018-04-03 | 2018-08-17 | 中国科学院广州能源研究所 | A kind of BrLi chiller of integrated multi-operation mode |
| CN108413642B (en) * | 2018-04-03 | 2024-04-26 | 中国科学院广州能源研究所 | Integrated multi-working-mode lithium bromide refrigerating unit |
| CN109282421A (en) * | 2018-08-10 | 2019-01-29 | 浙江理工大学 | A kind of water cooler fault diagnosis simulator |
| CN109282421B (en) * | 2018-08-10 | 2020-11-27 | 浙江理工大学 | Fault diagnosis simulation device for water chilling unit |
| CN109269142A (en) * | 2018-11-14 | 2019-01-25 | 嘉兴学院 | Ammonium hydroxide double effect absorption refrigeration system |
| CN109631393A (en) * | 2018-11-28 | 2019-04-16 | 山西大学 | The double-effect lithium bromide absorption type refrigerating plant of fume afterheat and solar energy coupling driving |
| CN113324347A (en) * | 2021-05-20 | 2021-08-31 | 浙江理工大学 | Double-absorption working medium heat storage type open type absorption heat exchange system |
| CN113324346A (en) * | 2021-05-20 | 2021-08-31 | 浙江理工大学 | Double-effect/two-stage open type absorption heat pump |
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Application publication date: 20110817 |