CN209763533U - Lithium bromide absorption type refrigeration air-conditioning system - Google Patents
Lithium bromide absorption type refrigeration air-conditioning system Download PDFInfo
- Publication number
- CN209763533U CN209763533U CN201920175309.2U CN201920175309U CN209763533U CN 209763533 U CN209763533 U CN 209763533U CN 201920175309 U CN201920175309 U CN 201920175309U CN 209763533 U CN209763533 U CN 209763533U
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- CN
- China
- Prior art keywords
- lithium bromide
- bromide absorption
- absorption refrigeration
- water
- conditioning system
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
the utility model aims at providing a lithium bromide absorption refrigeration air conditioning system. The indirect evaporative cooling water chilling unit and the lithium bromide absorption refrigeration system are connected with each other, and can be driven by low potential heat energy (solar energy, waste heat and the like), so that the power consumption is saved, the comprehensive utilization of energy is realized, and the energy utilization rate is improved; the operation parts are few, no compressor is provided, and the operation is quiet; the lithium bromide water solution is used as the working medium, so that the lithium bromide water solution is odorless, nontoxic and harmless, meets the requirement of environmental protection, reduces the energy consumption of equipment, and saves the operation and maintenance cost. Compared with the existing lithium bromide absorption refrigeration system, the condensation temperature is reduced, the absorption effect of the lithium bromide aqueous solution is enhanced, the energy efficiency ratio of the system is improved, and the refrigeration capacity of the system is increased.
Description
Technical Field
The utility model belongs to the technical field of air conditioning equipment, concretely relates to lithium bromide absorption refrigeration air conditioning system.
background
With the development of economic construction, various mechanical plants and chemical plants are built in large quantities, however, the air conditioning equipment and systems adopted in the places have the problem of high energy consumption. When the traditional mechanical refrigeration mode is adopted for cooling in the places, high-grade electric energy is utilized, the electric energy consumption is large, the equipment operation noise is large, and the maintenance cost is high. Under the call of the national policy of energy conservation and emission reduction, a refrigeration air-conditioning system with low energy consumption, low noise, safety and reliability is needed to meet the temperature and humidity requirements of people on working and living environments.
the lithium bromide absorption refrigeration system uses water as a refrigerant and a lithium bromide aqueous solution as an absorbent, and realizes refrigeration by utilizing the characteristics that the lithium bromide aqueous solution can strongly absorb water vapor at normal temperature and release absorbed water at high temperature and has lower evaporation temperature and heat absorption effect when water is evaporated in a vacuum state. The cold energy is produced by consuming low-grade heat energy, and the method is particularly suitable for places with more solar energy, industrial waste heat, waste heat and steam. The lithium bromide absorption refrigeration system runs quietly; the refrigerating capacity adjusting range is wide, and the refrigerating capacity can be adjusted in a stepless manner within a wider load range. However, the existing lithium bromide absorption refrigeration system has low energy efficiency, and the absorption effect of the lithium bromide aqueous solution in the absorber is influenced by the rising of the temperature of the cooling water, so that the refrigeration capacity is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium bromide absorption refrigeration air conditioning system can make full use of low potential heat energy, supplements the drive mode of lithium bromide absorption refrigeration system to practice thrift the power consumption.
The technical scheme adopted by the utility model is that the lithium bromide absorption refrigeration air-conditioning system comprises an indirect evaporative cooling water chilling unit and a lithium bromide absorption refrigeration system which are connected through a plate heat exchanger;
The lithium bromide absorption refrigeration system comprises a generator, a condenser, an evaporator and an absorber which are sequentially connected and form a loop, the generator and the absorber are in bidirectional connection through a heat exchanger, the absorber and the condenser are both connected to an inlet of an indirect evaporative cooling water chilling unit through pipelines, an outlet of the indirect evaporative cooling water chilling unit is respectively connected with input ends of the absorber and a plate heat exchanger through pipelines, and an output end of the plate heat exchanger is respectively connected with the condenser and the evaporator;
The input end of the plate heat exchanger is also connected with a refrigerant water pipeline.
The utility model discloses a characteristics still lie in:
The indirect evaporative cooling water chilling unit comprises a shell, wherein a fan, a wind shield, a water distributor, a filler and a water tank are sequentially arranged in the shell from top to bottom, a surface air cooler a and a surface air cooler b which are used as air inlets are symmetrically arranged on two sides of the outside of the shell corresponding to the filler, the surface air cooler a and the surface air cooler b are connected with the water distributor to form a loop, and a water pump is arranged in the water tank.
The pipeline of the generator flowing to the absorber is provided with a throttle valve a.
And a throttle valve b is arranged on a pipeline of the condenser flowing to the evaporator.
The evaporator is provided with a circulating pump a.
the path of the absorber flowing to the generator is provided with a circulating pump b.
The utility model discloses an air conditioning system can promote lithium bromide absorption refrigeration system's energy efficiency ratio, reduces the temperature of cooling water in the absorber, and then increases lithium bromide absorption refrigeration system's refrigerating capacity.
The method has the following specific beneficial effects:
1. The utility model discloses a cooling water of air conditioning system absorber comes from the cold water that indirect evaporative cooling water chilling unit prepared, and leaving water temperature is less than the cooling tower, strengthens the absorption effect of lithium bromide aqueous solution, and then increases the lithium bromide absorption refrigeration system refrigerating capacity.
2. the utility model discloses a low temperature refrigerant water return water temperature is lower among the air conditioning system, and the step utilizes the lower refrigerant water of return water temperature, reduces the cold water temperature that indirect evaporative cooling water set was prepared through plate heat exchanger, and the cooling water by the cooling lets in the condenser heat dissipation, promotes lithium bromide absorption refrigeration system energy efficiency ratio.
3. The utility model discloses an air conditioning system does not have high expectations to the heat source, is particularly suitable for having waste gas, the usable chemical industry of used heat, metallurgy and light industry enterprise, is favorable to the comprehensive utilization of heat source, and along with solar energy and the exploitation of geothermal energy, it will have more wide future.
drawings
Fig. 1 is a schematic structural diagram of the air conditioning system of the present invention.
In the figure, 1, an indirect evaporative cooling water chilling unit, 2, a fan, 3, a water baffle, 4, a water distributor, 5, a surface cooler a, 6, a surface cooler b, 7, a filler, 8, a water pump, 9, a plate heat exchanger, 10, a lithium bromide absorption refrigeration system, 11, an evaporator, 12, a circulating pump a, 13, an absorber, 14, a circulating pump b, 15, a heat exchanger, 16, a generator, 17, a throttle valve a, 18, a condenser, 19 and a throttle valve b.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a lithium bromide absorption refrigeration air conditioning system, as shown in figure 1, comprising an indirect evaporative cooling water chilling unit 1 and a lithium bromide absorption refrigeration system 10 which are connected by a plate heat exchanger 9;
The lithium bromide absorption refrigeration system 10 comprises a generator 16, a condenser 18, an evaporator 11 and an absorber 13 which are sequentially connected and form a loop, the generator 16 and the absorber 13 are in bidirectional connection through a heat exchanger 15, the absorber 13 and the condenser 18 are both connected to an inlet of an indirect evaporative cooling water chilling unit 1 through pipelines, an outlet of the indirect evaporative cooling water chilling unit 1 is respectively connected with the absorber 13 and an input end of a plate heat exchanger 9 through pipelines, and an output end of the plate heat exchanger 9 is respectively connected with the condenser 18 and the evaporator 11;
The input end of the plate heat exchanger 9 is also connected with a refrigerant water pipeline.
The indirect evaporative cooling water chilling unit 1 comprises a shell, a fan 2, a wind shield 3, a water distributor 4, a filler 7 and a water tank are sequentially arranged in the shell from top to bottom, a surface air cooler a5 and a surface air cooler b6 are symmetrically arranged on two sides of the outer portion of the shell corresponding to the filler 7 and serve as air inlets, the surface air cooler a5, the surface air cooler b6 and the water distributor 4 are connected with one another to form a loop, and a water pump 8 is arranged in the water tank.
The line from the generator 16 to the absorber 13 is provided with a throttle a 17.
A throttle valve b19 is provided on a pipe of the condenser 18 leading to the evaporator 11.
the evaporator 11 is provided with a circulation pump a 12.
The path of the absorber 13 to the generator 16 is provided with a circulation pump b 14.
The air conditioning system of the utility model is driven by low potential heat energy (solar energy, waste heat and the like), thereby saving the power consumption, realizing the comprehensive utilization of energy and improving the utilization rate of energy; the operation parts are few, no compressor is provided, and the operation is quiet; the lithium bromide water solution is used as the working medium, is odorless, nontoxic and harmless, and meets the requirement of environmental protection. Compared with the traditional mechanical refrigeration system, the energy consumption of the equipment is reduced, and the operation and maintenance cost is saved. Compared with the existing lithium bromide absorption refrigeration system, the condensation temperature is reduced, the temperature of cooling water introduced into the absorber is also reduced, the absorption effect of a lithium bromide aqueous solution is enhanced, the energy efficiency ratio of the system is improved, and the refrigeration capacity of the system is increased.
The utility model discloses air conditioning system's theory of operation does:
In the operation of the lithium bromide absorption refrigeration system, when the lithium bromide aqueous solution is heated by the heat source in the generator 16, the water in the solution is continuously vaporized; along with the continuous vaporization of the water, the concentration of the lithium bromide aqueous solution in the generator 16 is continuously increased and enters the absorber 13; the water vapor enters the condenser 18, is cooled by cooling water in the condenser 18 and then is condensed to form high-pressure low-temperature liquid water; when the water in the condenser 18 enters the evaporator 11 through the throttle valve 19, the water expands rapidly and is vaporized, and a large amount of heat of refrigerant water in the evaporator 11 is absorbed in the vaporization process, so that the purposes of temperature reduction and refrigeration are achieved; in the process, low-temperature water vapor enters the absorber 13, is absorbed by the lithium bromide aqueous solution in the absorber 13, gradually reduces the concentration of the solution, and is sent back to the generator 16 by the circulating pump 14 to complete the whole circulation. The circulation is not stopped, and the cold energy is continuously produced. Because the lithium bromide dilute solution is cooled in the absorber 13, the temperature is lower, in order to save the heat for heating the dilute solution and improve the heat exchange efficiency of the whole device, the heat exchanger 15 is added in the system, so that the high-temperature concentrated solution flowing out of the generator 16 and the low-temperature dilute solution flowing out of the absorber 13 exchange heat, and the temperature of the dilute solution entering the generator 16 is improved.
The cooling water of the absorber 13 in the air conditioning system of the utility model comes from the cold water prepared by the indirect evaporative cooling water chilling unit 1, and returns to the indirect evaporative cooling water chilling unit 1 for spraying after being introduced into the absorber 13 for cooling; the return water temperature of the low-temperature refrigerant water of the system is lower, the refrigerant water with lower return water temperature is utilized in a cascade mode, the temperature of cold water prepared by the indirect evaporative cooling water chilling unit 1 is further reduced through the plate heat exchanger 9, the cooled cooling water is introduced into the condenser 18 for heat dissipation, and the refrigerant water is introduced into the evaporator 11 for cooling; the system has low requirement on heat sources, is particularly suitable for chemical, metallurgical and light industry enterprises with available waste gas and waste heat, is beneficial to comprehensive utilization of the heat sources, improves the utilization rate of energy sources, and has wider prospect along with development and utilization of solar energy and geothermal energy.
the utility model relates to a lithium bromide absorbs among formula refrigeration air conditioning system:
(1) Cooling water flow:
Cold water prepared by the indirect evaporative cooling water chilling unit 1 is used as cooling water, and a strand of cooling water is introduced into the absorber 13 for cooling and then returns to the indirect evaporative cooling water chilling unit 1 for spraying; the other stream of cooling water is further cooled by low-temperature refrigerant water backwater through the plate heat exchanger 9 and then is introduced into the condenser 18 for heat dissipation.
(2) a refrigerant water flow:
the return water temperature of the refrigerant water is lower, the temperature of the cold water prepared by the indirect evaporative cooling water chilling unit 1 is further reduced through the plate heat exchanger 9, and the refrigerant water is introduced into the evaporator 11 for cooling and then is sent into the tail end device.
The utility model relates to a lithium bromide absorption refrigeration air conditioning system has promoted lithium bromide absorption refrigeration system's energy efficiency ratio, reduces the temperature of cooling water in the absorber, and then increases lithium bromide absorption refrigeration system's refrigerating capacity. The cooling water of the absorber of the system is cold water prepared by an indirect evaporative cooling water chilling unit, the temperature of the outlet water is lower than that of a cooling tower, the absorption effect of the lithium bromide water solution is enhanced, and the refrigerating capacity of the lithium bromide absorption type refrigerating system is further increased;
The utility model discloses a low temperature refrigerant water return water temperature is lower in the air conditioning system, and the lower refrigerant water of step utilization return water temperature reduces the cold water temperature that indirect evaporative cooling water set prepared through plate heat exchanger, and the cooling water of being cooled lets in the condenser heat dissipation, promotes lithium bromide absorption refrigeration system energy efficiency ratio;
The utility model discloses an air conditioning system does not have high expectations to the heat source, is particularly suitable for having waste gas, the usable chemical industry of used heat, metallurgy and light industry enterprise, is favorable to the comprehensive utilization of heat source, along with solar energy and the exploitation of geothermal energy, foresees, and a lithium bromide absorption refrigeration air conditioning system's application has wide prospect.
Claims (6)
1. A lithium bromide absorption refrigeration air-conditioning system is characterized by comprising an indirect evaporative cooling water chilling unit (1) and a lithium bromide absorption refrigeration system (10) which are connected through a plate heat exchanger (9);
The lithium bromide absorption refrigeration system (10) comprises a generator (16), a condenser (18), an evaporator (11) and an absorber (13) which are sequentially connected and form a loop, wherein the generator (16) and the absorber (13) are in bidirectional connection through a heat exchanger (15), the absorber (13) and the condenser (18) are both connected to an inlet of an indirect evaporative cooling water chilling unit (1) through pipelines, an outlet of the indirect evaporative cooling water unit (1) is respectively connected with input ends of the absorber (13) and a plate heat exchanger (9) through pipelines, and an output end of the plate heat exchanger (9) is respectively connected with the condenser (18) and the evaporator (11);
And the input end of the plate heat exchanger (9) is also connected with a refrigerant water pipeline.
2. The lithium bromide absorption refrigeration air-conditioning system according to claim 1, characterized in that the indirect evaporative cooling water chiller (1) comprises a housing, a fan (2), a wind screen (3), a water distributor (4), a filler (7) and a water tank are sequentially arranged in the housing from top to bottom, a surface air cooler a (5) and a surface air cooler b (6) are symmetrically arranged at two sides of the exterior of the housing corresponding to the filler (7) and serve as air inlets, the surface air coolers a (5) and the surface air coolers b (6) are connected with the water distributor (4) to form a loop, and a water pump (8) is arranged in the water tank.
3. A lithium bromide absorption refrigeration air conditioning system as claimed in claim 1, wherein a throttle valve a (17) is provided in the conduit from the generator (16) to the absorber (13).
4. A lithium bromide absorption refrigeration air conditioning system as claimed in claim 1, wherein a throttle valve b (19) is provided in the conduit leading from the condenser (18) to the evaporator (11).
5. a lithium bromide absorption refrigeration air-conditioning system according to claim 1, wherein the evaporator (11) is provided with a circulation pump a (12).
6. A lithium bromide absorption refrigeration air conditioning system as claimed in claim 1, wherein the absorber (13) is provided with a circulation pump b (14) on its way to the generator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175309.2U CN209763533U (en) | 2019-01-31 | 2019-01-31 | Lithium bromide absorption type refrigeration air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175309.2U CN209763533U (en) | 2019-01-31 | 2019-01-31 | Lithium bromide absorption type refrigeration air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209763533U true CN209763533U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920175309.2U Expired - Fee Related CN209763533U (en) | 2019-01-31 | 2019-01-31 | Lithium bromide absorption type refrigeration air-conditioning system |
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| Country | Link |
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| CN (1) | CN209763533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827270A (en) * | 2019-01-31 | 2019-05-31 | 西安工程大学 | A kind of air-conditioning system for evaporating cooling lithium bromide absorbing type refrigeration |
| CN112046723A (en) * | 2020-08-24 | 2020-12-08 | 中国船舶工业集团公司第七0八研究所 | Ventilation system for cargo compartment of box ship |
-
2019
- 2019-01-31 CN CN201920175309.2U patent/CN209763533U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827270A (en) * | 2019-01-31 | 2019-05-31 | 西安工程大学 | A kind of air-conditioning system for evaporating cooling lithium bromide absorbing type refrigeration |
| CN112046723A (en) * | 2020-08-24 | 2020-12-08 | 中国船舶工业集团公司第七0八研究所 | Ventilation system for cargo compartment of box ship |
| CN112046723B (en) * | 2020-08-24 | 2022-09-27 | 中国船舶工业集团公司第七0八研究所 | Ventilation system for cargo compartment of box ship |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |