CN111780451B - Steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in single-effect mode - Google Patents
Steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in single-effect mode Download PDFInfo
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- CN111780451B CN111780451B CN202010625567.3A CN202010625567A CN111780451B CN 111780451 B CN111780451 B CN 111780451B CN 202010625567 A CN202010625567 A CN 202010625567A CN 111780451 B CN111780451 B CN 111780451B
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- pressure generator
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 101
- 239000012808 vapor phase Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000006096 absorbing agent Substances 0.000 claims description 37
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in a single-effect mode, wherein two paths of refrigerant steam pipes are arranged in a vapor phase area at the upper part of a high-pressure generator steam drum, one path of the refrigerant steam pipe is a pipeline for feeding the refrigerant steam into a low-pressure generator tube side, the other path of the refrigerant steam pipe is a pipeline for feeding the refrigerant steam into a vapor phase area of a low-pressure generator shell or a pipeline for feeding the refrigerant steam into a condenser shell, and a refrigerant steam switching valve is arranged on the pipeline for feeding the refrigerant steam into the vapor phase area of the low-pressure generator shell or the pipeline for feeding the refrigerant steam into the condenser shell. The method comprises the steps of switching a valve, starting and stopping a low-pressure solution pump, and operating according to a solution parallel circulation flow of a steam double-effect lithium bromide absorption chiller during the refrigerating working condition in summer; and when the heating working condition is operated in winter, the single-effect circulation flow of the steam type first-class lithium bromide absorption heat pump unit is operated. The unit is simple to operate, has high performance coefficient, is dual-purpose, reduces equipment initial investment and management cost, saves equipment occupied space, and improves the annual utilization rate of equipment.
Description
Technical Field
The invention relates to a steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in a single-effect mode, and belongs to the technical field of refrigeration equipment.
Background
In the production process and life, in some occasions, refrigeration is needed in summer and heat is needed in winter, in the areas with both steam heat sources and low-temperature waste heat, a steam double-effect lithium bromide absorption type water chilling unit is built for cooling a user to meet the requirements of refrigeration in summer, a first-class lithium bromide absorption type heat pump unit is built for heating the user to meet the requirements of heat supply in winter and save steam consumption, so that two types of equipment are needed to be put in, and the initial equipment investment and the equipment management cost are increased intangibly. Under the condition, in order to reduce the initial investment of equipment and the running management cost, a lithium bromide unit which is simple in operation, safe and reliable, can cool in summer and can supply heat in winter and has high annual use rate needs to be studied, wherein the energy consumption is saved.
Disclosure of Invention
The invention aims to provide a steam double-effect lithium bromide absorption chiller unit capable of realizing single-effect heat supply, which is capable of realizing double-effect refrigeration in summer and single-effect heat pump recovery waste heat supply in winter, saving energy consumption, reducing initial investment and management cost, and being simple to operate and high in annual utilization rate.
The purpose of the invention is realized in the following way:
A steam double-effect lithium bromide absorption chiller capable of supplying heat in a single-effect mode comprises a steam high-pressure generator, a low-pressure generator, a condenser, an evaporator, an absorber, a high-temperature heat exchanger, a low-temperature heat exchanger, a condensate heat exchanger, a high-pressure solution pump, a low-pressure solution pump, a refrigerant pump and a refrigerant steam switching valve, wherein two paths of refrigerant steam pipes are arranged in a vapor phase region at the upper part of a steam drum of the steam high-pressure generator, one path is a pipeline for feeding refrigerant steam into a tube side of the low-pressure generator, the other path is a pipeline for feeding refrigerant steam into a vapor phase region of a shell of the low-pressure generator or a pipeline for feeding refrigerant steam into a shell of the condenser, and the pipeline for feeding refrigerant steam into the vapor phase region of the shell of the low-pressure generator or the pipeline for feeding refrigerant steam into the shell of the condenser is provided with the refrigerant steam switching valve;
two paths of concentrated solution distribution pipes are arranged in parallel at the upper part in the absorber shell, one path is a high-pressure concentrated solution distribution pipe, and the other path is a low-pressure concentrated solution distribution pipe.
Preferably, when the refrigerating condition is operated in summer, the refrigerant steam switching valve is closed, refrigerant steam from the steam high-pressure generator enters the low-pressure generator tube side through the refrigerant steam inlet low-pressure generator tube side pipeline to be condensed, concentrated solution concentrated by the steam high-pressure generator enters the absorber high-pressure concentrated solution distribution pipe through the high-temperature heat exchanger and the high-pressure concentrated solution regulating valve, concentrated solution concentrated by the low-pressure generator enters the absorber low-pressure concentrated solution distribution pipe through the low-temperature heat exchanger and the low-pressure concentrated solution regulating valve, and the concentrated solution in the high-pressure concentrated solution distribution pipe and the concentrated solution in the low-pressure concentrated solution distribution pipe are connected in parallel and enter the absorber shower plate; the high-pressure solution pump lifts part of the dilute solution into a steam high-pressure generator shell through a high-temperature heat exchanger and a condensate heat exchanger respectively in two ways; the low-pressure solution pump lifts part of the dilute solution to enter the low-pressure generator shell through the low-temperature heat exchanger; the unit operates according to the parallel circulation flow of the solution of the steam double-effect lithium bromide absorption chiller.
Preferably, when the heating condition is operated in winter, the refrigerant vapor switching valve is opened, the low-pressure solution pump is stopped, no dilute solution enters the low-pressure generator, the low-pressure generator stops working, the refrigerant vapor from the high-pressure steam generator enters the low-pressure generator shell through the refrigerant vapor inlet pipe and enters the condenser to be condensed into refrigerant water, or the refrigerant vapor from the high-pressure steam generator enters the condenser shell through the refrigerant vapor inlet pipe and directly enters the condenser to be condensed into refrigerant water, and the concentrated solution concentrated by the high-pressure steam generator enters the absorber high-pressure concentrated solution distribution pipe through the high-temperature heat exchanger and the high-pressure concentrated solution regulating valve and then enters the absorber shower plate; the high-pressure solution pump lifts part of the dilute solution into a steam high-pressure generator shell through a high-temperature heat exchanger and a condensate heat exchanger respectively in two ways; the unit operates according to a single-effect circulation flow of the steam type first lithium bromide absorption heat pump.
Preferably, a impingement plate is provided at the refrigerant vapor inlet of the condenser housing or at the refrigerant vapor inlet of the low pressure generator housing.
The beneficial effects of the invention are as follows:
The brand new double-effect refrigerating solution parallel circulation flow and the heat pump single-effect heat supply circulation flow are adopted, so that the two different heat fields and the machine types of the flow fields are integrated on the same machine set, and when the refrigerating and heating working conditions are converted, except the external system conversion, the valve switching adjustment and the starting and stopping of the low-pressure solution pump are only needed, so that the operation is very simple; the condensing heat exchanger and the high-temperature heat exchanger are arranged in parallel, so that the temperature of the dilute solution entering the steam high-pressure generator is increased, the steam consumption is saved, the performance coefficient of the unit is greatly improved, the unit is dual-purpose, the initial equipment investment is reduced, the occupied space of the equipment is saved, the management cost of the equipment is saved, and the annual operation utilization rate of the unit is improved.
Drawings
Fig. 1 is a flow chart of a steam double-effect lithium bromide absorption chiller unit capable of supplying heat in a single-effect mode.
Fig. 2 is a flow chart of another steam double-effect lithium bromide absorption chiller unit capable of supplying heat in a single-effect mode.
In the figure: the steam electric control valve 1, the steam high-pressure generator 2, the refrigerant steam inlet low-pressure generator tube side pipeline 3, the refrigerant steam inlet low-pressure generator shell vapor phase region pipeline 4, the refrigerant steam switching valve 5, the anti-flushing plate 6, the low-pressure generator 7, the condenser 8, the refrigerant water U-shaped pipe 9, the evaporator 10, the refrigerant pump 11, the absorber shower plate 12, the high-pressure solution pump 13, the low-pressure solution pump 14, the absorber 15, the high-pressure concentrated solution distribution pipe 16, the low-pressure concentrated solution distribution pipe 17, the low-pressure concentrated solution control valve 18, the low-temperature heat exchanger 19, the high-pressure concentrated solution control valve 20, the high-temperature heat exchanger 21, the condensate heat exchanger 22, the condensate outlet 23, the hot water outlet valve 24, the cooling water outlet valve 25, the waste heat water outlet valve 26, the cold water outlet valve 27, the waste heat water inlet valve 28, the cold water inlet valve 29, the hot water inlet valve 30, the cooling water inlet valve 31 and the refrigerant steam inlet shell pipeline 32.
Detailed Description
Example 1
As shown in figure 1, the steam double-effect lithium bromide absorption chiller capable of supplying heat in a single-effect manner comprises a steam high-pressure generator 2, a low-pressure generator 7, a condenser 8, an evaporator 10, an absorber 15, a high-temperature heat exchanger 21, a low-temperature heat exchanger 19, a condensate heat exchanger 22, a high-pressure solution pump 13, a low-pressure solution pump 14, a refrigerant pump 11, a refrigerant steam switching valve 5, a control system, pipelines and valves for connecting all parts and the like, wherein two paths of refrigerant steam pipes are arranged in a vapor phase region at the upper part of a steam drum of the steam high-pressure generator 2, one path of the refrigerant steam enters a low-pressure generator tube side pipeline 3, the other path of the refrigerant steam enters a low-pressure generator shell vapor phase region pipeline 4, the refrigerant steam enters the low-pressure generator shell vapor phase region pipeline is provided with a refrigerant steam switching valve 5, and a flushing plate 6 is arranged at a refrigerant steam inlet of the low-pressure generator shell; a high-pressure solution pump 13 and a low-pressure solution pump 14 are arranged on a dilute solution sac at the bottom of a barrel of the absorber 15 in parallel; two paths of concentrated solution distribution pipes are arranged in parallel at the upper part in the shell of the absorber 15, one path is a high-pressure concentrated solution distribution pipe 16, and the other path is a low-pressure concentrated solution distribution pipe 17.
When the refrigerating working condition is operated in summer, the refrigerant steam switching valve 5 is closed, refrigerant steam from the steam high-pressure generator 2 enters the low-pressure generator tube side through the refrigerant steam inlet low-pressure generator tube side pipeline 3 to be condensed, concentrated solution concentrated by the steam high-pressure generator enters the absorber high-pressure concentrated solution distribution pipe 16 through the high-temperature heat exchanger 21 and the high-pressure concentrated solution regulating valve 20, concentrated solution concentrated by the low-pressure generator enters the absorber low-pressure concentrated solution distribution pipe 17 through the low-temperature heat exchanger 19 and the low-pressure concentrated solution regulating valve 18, and concentrated solutions in the high-pressure concentrated solution distribution pipe 16 and the low-pressure concentrated solution distribution pipe 17 are connected in parallel and enter the absorber shower plate 12; the high-pressure solution pump 13 lifts part of the dilute solution into the shell of the steam high-pressure generator 2 through the high-temperature heat exchanger 21 and the condensate heat exchanger 22 respectively in two ways; the low-pressure solution pump 14 lifts part of the dilute solution to enter the low-pressure generator 7 for solution distribution through the low-temperature heat exchanger 19; the unit operates according to the parallel circulation flow of the solution of the steam double-effect lithium bromide absorption chiller, and the detailed refrigeration working principle is as follows: the high-pressure solution pump 13 pumps part of the dilute solution into the shell of the steam high-pressure generator 2, the driving steam in the heat transfer pipe concentrates the dilute solution into high-pressure concentrated solution, high-temperature refrigerant steam is generated at the same time, the high-temperature refrigerant steam enters the heat transfer pipe of the low-pressure generator 7, the dilute solution pumped into the surface of the heat transfer pipe of the low-pressure generator 7 by the low-pressure solution pump 14 is heated to become low-pressure concentrated solution, the high-temperature refrigerant water condensed in the heat transfer pipe of the low-pressure generator 7 enters the shell of the condenser 8 for flash evaporation, the refrigerant steam generated by concentrating the dilute solution by the low-pressure generator 7 enters the condenser 8 for condensation, the condensed refrigerant water enters the evaporator 10 for flash evaporation through the refrigerant water U-shaped pipe 9, the non-flash refrigerant water enters the bottom of the evaporator 10, the refrigerant steam is pumped into the heat transfer pipe surface of the evaporator 10 for heat absorption and evaporation by the refrigerant pump 11, the evaporated refrigerant steam enters the absorber 15, the concentrated solution sprayed on the surface of the heat transfer pipe of the absorber 15 in the absorber shower plate 12 is absorbed by the concentrated solution, and the solution is changed into the bottom of the dilute solution entering the absorber 15. Driving steam to enter a tube side of a steam high-pressure generator 2 through an electric regulating valve 1 to be condensed into condensate, and enabling the condensate to flow out of the unit from a condensate outlet 23 after being cooled by a condensate heat exchanger 22; cooling the cold water flowing through the tube side of the evaporator 10, and enabling the cold water to enter and exit the unit through a cold water inlet valve 29 and a cold water outlet valve 27; the cooling water passes through the absorber 15 and the condenser 8 tube passes to carry heat out of the unit, and the cooling water passes into and out of the unit through the cooling water inlet valve 31 and the cooling water outlet valve 25. The needed cold water is produced by continuous circulation for users.
When the heating working condition is operated in winter, the refrigerant vapor switching valve 5 is opened, the low-pressure solution pump 14 is stopped, no dilute solution enters the low-pressure generator 7, the low-pressure generator 7 stops working, the refrigerant vapor from the vapor high-pressure generator 2 enters the low-pressure generator shell through the refrigerant vapor inlet pipe 4 and then enters the condenser 8 to be condensed into refrigerant water, and the concentrated solution concentrated by the vapor high-pressure generator 2 enters the absorber high-pressure concentrated solution distribution pipe 16 through the high-temperature heat exchanger 21 and the high-pressure concentrated solution regulating valve 20 and then enters the absorber shower plate 12; the high-pressure solution pump 13 lifts part of the dilute solution into the shell of the steam high-pressure generator 2 through the high-temperature heat exchanger 21 and the condensate heat exchanger 22 respectively in two ways; the unit operates according to a single-effect circulation flow of a steam type first lithium bromide absorption heat pump, and the detailed heat supply working principle is as follows: the high-pressure solution pump 13 pumps part of the dilute solution into the shell of the steam high-pressure generator 2, the dilute solution is concentrated into high-pressure concentrated solution by the driving steam in the heat transfer pipe, high-temperature refrigerant steam is generated at the same time, the high-temperature refrigerant steam enters the condenser 8 to be condensed into refrigerant water, the condensed refrigerant water enters the evaporator 10 through the refrigerant water U-shaped pipe 9 to flash, the non-flash refrigerant water enters the bottom of the evaporator 10, the refrigerant water is pumped into the surface of the heat transfer pipe of the evaporator 10 by the refrigerant pump 11 to absorb heat and evaporate, the evaporated refrigerant steam enters the absorber 15, the concentrated solution sprayed on the surface of the heat transfer pipe of the absorber 15 in the absorber shower plate 12 is absorbed, and the concentrated solution is changed into the dilute solution to enter the bottom of the absorber 15. Driving steam to enter a tube side of a steam high-pressure generator 2 through an electric regulating valve 1 to be condensed into condensate, and cooling the condensate by a condensate heat exchanger 22 and then flowing out of the unit; the waste heat water flows out of the unit after being recycled through the tube pass cooling heat of the evaporator 10, and the waste heat water enters and exits the unit through the waste heat water inlet valve 28 and the waste heat water outlet valve 26; the hot water is heated by passing through the absorber 15 and the condenser 8 tube passes, and the hot water enters and exits the unit through the hot water inlet valve 30 and the hot water outlet valve 24. The hot water needed by the user is produced by continuous circulation.
Example 2
As shown in fig. 2, another steam double-effect lithium bromide absorption chiller capable of supplying heat in a single-effect manner comprises a steam high-pressure generator 2, a low-pressure generator 7, a condenser 8, an evaporator 10, an absorber 15, a high-temperature heat exchanger 21, a low-temperature heat exchanger 19, a condensate heat exchanger 22, a high-pressure solution pump 13, a low-pressure solution pump 14, a refrigerant pump 11, a refrigerant steam switching valve 5, a control system, pipelines and valves for connecting the components and the like, wherein two paths of refrigerant steam pipes are arranged in a vapor phase area at the upper part of a steam drum of the steam high-pressure generator 2, one path of refrigerant steam enters a low-pressure generator pipe side pipeline 3, the other path of refrigerant steam enters a condenser shell pipeline 32, the refrigerant steam enters the condenser shell pipeline 32 is provided with the refrigerant steam switching valve 5, and a flushing plate 6 is arranged at a refrigerant steam inlet of the condenser shell; a high-pressure solution pump 13 and a low-pressure solution pump 14 are arranged on a dilute solution sac at the bottom of a barrel of the absorber 15 in parallel; two paths of concentrated solution distribution pipes are arranged in parallel at the upper part in the shell of the absorber 15, one path is a high-pressure concentrated solution distribution pipe 16, and the other path is a low-pressure concentrated solution distribution pipe 17.
The principle of cooling in summer and heating in winter is the same as that of embodiment 1, except that during heating in winter, the refrigerant vapor from the vapor high-pressure generator 2 enters the condenser 8 directly through the refrigerant vapor inlet condenser shell pipe 32 to be condensed into refrigerant water.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.
Claims (2)
1. The utility model provides a steam double-effect type lithium bromide absorption chiller that can single-effect heat supply, includes steam high pressure generator (2), low pressure generator (7), condenser (8), evaporimeter (10), absorber (15), high temperature heat exchanger (21), low temperature heat exchanger (19), condensate heat exchanger (22), high pressure solution pump (13), low pressure solution pump (14), refrigerant pump (11), refrigerant steam switching valve (5), its characterized in that: two paths of refrigerant steam pipes are arranged in the vapor phase region at the upper part of a steam drum of the steam high-pressure generator (2), one path is a refrigerant steam inlet low-pressure generator tube side pipeline (3), the other path is a refrigerant steam inlet low-pressure generator shell vapor phase region pipeline (4) or a refrigerant steam inlet condenser shell pipeline (32), and a refrigerant steam switching valve (5) is arranged on the refrigerant steam inlet low-pressure generator shell vapor phase region pipeline (4) or the refrigerant steam inlet condenser shell pipeline (32);
Two paths of concentrated solution distribution pipes are arranged in parallel at the upper part in the shell of the absorber (15), one path is a high-pressure concentrated solution distribution pipe (16), and the other path is a low-pressure concentrated solution distribution pipe (17);
When the refrigerating working condition is operated in summer, the refrigerant steam switching valve (5) is closed, refrigerant steam from the steam high-pressure generator (2) enters the low-pressure generator tube side pipeline (3) through the refrigerant steam, condensed in the low-pressure generator tube side, concentrated solution concentrated by the steam high-pressure generator enters the absorber high-pressure concentrated solution distribution pipe (16) through the high-temperature heat exchanger (21) and the high-pressure concentrated solution regulating valve (20), concentrated solution concentrated by the low-pressure generator enters the absorber low-pressure concentrated solution distribution pipe (17) through the low-temperature heat exchanger (19) and the low-pressure concentrated solution regulating valve (18), and concentrated solution in the high-pressure concentrated solution distribution pipe (16) and the low-pressure concentrated solution distribution pipe (17) are connected in parallel and enter the absorber shower plate (12) together; the high-pressure solution pump (13) lifts part of the dilute solution into a shell of the steam high-pressure generator (2) through a high-temperature heat exchanger (21) and a condensate heat exchanger (22) respectively in two paths; a low-pressure solution pump (14) lifts part of the dilute solution to enter the shell of the low-pressure generator (7) through a low-temperature heat exchanger (19); the unit operates according to a solution parallel circulation flow of the steam double-effect lithium bromide absorption type water chilling unit;
When the heating working condition is operated in winter, the refrigerant vapor switching valve (5) is opened, the low-pressure solution pump (14) is stopped, no dilute solution enters the low-pressure generator (7), the low-pressure generator (7) stops working, refrigerant vapor from the vapor high-pressure generator (2) enters the low-pressure generator shell through the refrigerant vapor inlet low-pressure generator shell vapor phase area pipeline (4) and then enters the condenser (8) to be condensed into refrigerant water, or the refrigerant vapor from the vapor high-pressure generator (2) enters the condenser shell pipeline (32) to be directly enters the condenser (8) to be condensed into refrigerant water, and concentrated solution concentrated by the vapor high-pressure generator (2) enters the absorber shower plate (12) through the high-temperature heat exchanger (21) and the high-pressure concentrated solution regulating valve (20) after entering the absorber high-pressure concentrated solution distribution pipe (16); the high-pressure solution pump (13) lifts part of the dilute solution into a shell of the steam high-pressure generator (2) through a high-temperature heat exchanger (21) and a condensate heat exchanger (22) respectively in two paths; the unit operates according to a single-effect circulation flow of the steam type first lithium bromide absorption heat pump.
2. The steam double-effect lithium bromide absorption chiller capable of supplying heat in a single-effect manner according to claim 1 and characterized in that: a impingement plate (6) is provided at the refrigerant vapor inlet of the condenser housing or at the refrigerant vapor inlet of the low pressure generator housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625567.3A CN111780451B (en) | 2020-07-02 | 2020-07-02 | Steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in single-effect mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625567.3A CN111780451B (en) | 2020-07-02 | 2020-07-02 | Steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in single-effect mode |
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| CN111780451B true CN111780451B (en) | 2024-06-04 |
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| CN113606812B (en) * | 2021-07-30 | 2023-03-10 | 华能嘉祥发电有限公司 | Steam double-effect absorption refrigerator mounting structure |
| CN114251863B (en) * | 2021-12-27 | 2023-05-26 | 北京华源泰盟节能设备有限公司 | Distributed energy supply system and operation method thereof |
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| CN101403548A (en) * | 2008-10-15 | 2009-04-08 | 江苏双良空调设备股份有限公司 | Steam type first-class lithium bromide absorption type heat pump units with dual-effect refrigeration function |
| CN110173922A (en) * | 2019-06-18 | 2019-08-27 | 双良节能系统股份有限公司 | A kind of steam type lithium bromide absorption type heat pump unit of energy dual-effect refrigeration |
| CN110173923A (en) * | 2019-06-18 | 2019-08-27 | 双良节能系统股份有限公司 | A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration |
| CN212511916U (en) * | 2020-07-02 | 2021-02-09 | 双良节能系统股份有限公司 | Steam double-effect type lithium bromide absorption water chilling unit capable of supplying heat in single effect |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403548A (en) * | 2008-10-15 | 2009-04-08 | 江苏双良空调设备股份有限公司 | Steam type first-class lithium bromide absorption type heat pump units with dual-effect refrigeration function |
| CN110173922A (en) * | 2019-06-18 | 2019-08-27 | 双良节能系统股份有限公司 | A kind of steam type lithium bromide absorption type heat pump unit of energy dual-effect refrigeration |
| CN110173923A (en) * | 2019-06-18 | 2019-08-27 | 双良节能系统股份有限公司 | A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration |
| CN212511916U (en) * | 2020-07-02 | 2021-02-09 | 双良节能系统股份有限公司 | Steam double-effect type lithium bromide absorption water chilling unit capable of supplying heat in single effect |
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