CN206609178U - A kind of lithium bromide absorption-type machine unit with solution cooler - Google Patents
A kind of lithium bromide absorption-type machine unit with solution cooler Download PDFInfo
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- CN206609178U CN206609178U CN201720214227.5U CN201720214227U CN206609178U CN 206609178 U CN206609178 U CN 206609178U CN 201720214227 U CN201720214227 U CN 201720214227U CN 206609178 U CN206609178 U CN 206609178U
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- lithium bromide
- bromide absorption
- type machine
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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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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model belongs to technical field of refrigeration equipment, and in particular to a kind of lithium bromide absorption-type machine unit.Propose a kind of lithium bromide absorption-type machine unit with solution cooler, including absorber, evaporator, regenerator, condenser, heat exchanger, refrigerant pump, the pipeline and valve of air extractor and connecting components, the weak solution outlet of absorber is connected with solution pump, the outlet of the solution pump is connected by the injection head of a branch line and air extractor, solution cooler is had additional on the branch line of connection solution pump discharge and air extractor, the high temperature side entrance of solution cooler and the outlet of solution pump are connected by the branch line, its high temperature side outlet connects injection head, the low temperature side of solution cooler accesses the cooling medium for cooling down high-temperature side weak solution by pipeline.The utility model is additionally arranged solution cooler on the connecting line of air extractor and solution pump discharge, and further the low-pressure area pressure of reduction injection formation, effectively increases the exhaust capacity of unit.
Description
Technical field
The utility model belongs to technical field of refrigeration equipment, and in particular to a kind of suction-type lithium bromide with solution cooler
Unit.
Background technology
Conventional lithium bromide absorption-type machine unit（By taking refrigeration machine as an example）As shown in Figure 1.It is main by absorber 1, evaporator 2,
The portion such as regenerator 3, condenser 4, heat exchanger 5, solution pump 7, refrigerant pump 8, pipeline, the valve of air extractor 9 and connecting components
Part is constituted, and its operation principle is the lithium-bromide solution in heating source thermal regeneration device, raises solution concentration, becomes concentrated solution,
Water vapour is produced simultaneously, water vapour is carried out the cooling water condensation of condenser, form water as refrigerant, water as refrigerant is in condenser and evaporation
Enter evaporator in the presence of device pressure differential, then cryogen water droplet is poured into evaporator in the way of refrigerant self-loopa by refrigerant pump and pass
Tube surface, draws and is evaporated after the heat of heat-transfer pipe inner cold water, form refrigerant vapour, into absorber, absorbed by concentrated solution,
Concentrated solution is changed into weak solution.The weak solution of absorber is sent to regenerator through heat exchanger by solution pump and is heated, and is condensed into again dense
Solution.Whole process iterative cycles are carried out, so as to produce cold water.
Requirement in unit operation process to vacuum is high, while a large amount of incoagulable gas can be also produced, and incoagulability
The presence of gas meeting strong influence unit operation performance and efficiency, and the phenomenons such as corrosion may be triggered again, therefore, how soon
Incoagulable gas just becomes most important in speed, effective extraction unit.Traditional lithium bromide absorption-type machine unit is generally fitted with
Automatic gas extraction device, its air-exhaust method using the injection head that sub-fraction solution is introduced to air extractor by solution pump, leads to mostly
The flow velocity crossed at increase injection head nozzle, makes it form low-pressure area at nozzle, to extract the incoagulable gas of unit out.But the party
Method exist with the extension of the unit duration of runs, the hidden danger that exhaust capacity is gradually reduced, because of unit in operation process absorber
Interior solution is in saturation state, when solution is brought out, and after the solution pump for passing through long time running, can absorb from solution pump
The heat produced is operated, then solution can be made to be in slight superheat state, during by the nozzle position of air extractor injection head, meeting
There is a small amount of vapor flash to come out, influence the formation of low-pressure area, so as to influence pumping performance, and then cause the behavior in service of unit
Be gradually reduced, and increase the long-term possibility for causing corrosion in unit of the residual gas that is not extracted.
The big drawback that lithium bromide absorption-type machine unit is operated steadily in the long term is the gradually attenuation problem of refrigerating capacity.It freezes
The decay of amount mainly can not be permanently effective with unit vacuum maintain great relation, and air extractor exhaust capacity is excellent
Bad is the important channel for ensureing that whether good unit vacuum state is, it can be seen that, the quality of pumping performance is to lithium bromide absorption
It is most important for formula unit.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency to make the band of air extractor exhaust capacity raising there is provided a kind of
The lithium bromide absorption-type machine unit of solution cooler.The utility model further drops from the angle of reduction solution injection temperature
The low-pressure area pressure of low injection formation, effectively increases the exhaust capacity of unit, reduces and remain in gas in unit, so as to subtract
Small its triggers the possibility of corrosion phenomenon, and then ensures that unit is more stablized, efficiently operated.
To achieve the above object, the utility model provides following technical scheme：Propose a kind of bromine with solution cooler
Change lithium-absorbing formula unit, including absorber, evaporator, regenerator, condenser, heat exchanger, air extractor and connecting components
Pipeline and valve, evaporator is connected with refrigerant pump, and the weak solution outlet of absorber is connected with solution pump, the outlet of the solution pump
Connected, increased on the branch line of connection solution pump discharge and air extractor by the injection head of a branch line and air extractor
Provided with solution cooler, the high temperature side entrance of solution cooler and the outlet of solution pump are connected by the branch line, and it is high
Warm side outlet connects injection head, and the low temperature side of solution cooler is accessed by pipeline to be situated between for the cooling of cooling down high-temperature side weak solution
Matter.
The low temperature side entrance of the solution cooler is connected with refrigerant pump export pipeline by branch road X, solution cooler
Low temperature side outlet is connected by pipeline with evaporator.
The low temperature side entrance of the solution cooler and the cooling water outlet main pipe rail of lithium bromide absorption-type machine unit pass through branch road Y
Connection, the low temperature side outlet of solution cooler is connected by pipeline and the cold water inlet main pipe rail of lithium bromide absorption-type machine unit.
The low temperature side entrance of the solution cooler and the cooling water inlet main pipe rail of lithium bromide absorption-type machine unit pass through branch
Road Z connections, the low temperature side outlet of solution cooler is connected by pipeline and the coolant outlet main pipe rail of lithium bromide absorption-type machine unit
Connect.
The lithium bromide absorption-type machine unit is refrigeration machine or absorption heat pump.
The structure of the lithium bromide absorption-type machine unit is unistage type, two section type or multisection type.
The utility model is additionally arranged solution cooler on the connecting line of air extractor and solution pump discharge, is taken out to entering
Weak solution before device of air is cooled down, the weak solution temperature reduction after being cooled, in supercooled state, into air extractor
Injection at injection head nozzle, forms local compared with low-pressure area, the formation compared with low-pressure area is easier to extract the incoagulable gas in unit out,
Improve the pumping performance of air extractor.
The utility model to the lithium bromide absorption-type machine unit with solution cooler with it is traditional without solution cooler
Unit carried out related experiment test, to verify the relation of gas yield and time used.Main take of experiment selects phase
Same unit, is verified by same load operating condition and the method that reclaims equal amount incoagulable gas, is contrasted by experimental result
Draw, the time that the lithium bromide absorption-type machine unit with solution cooler extracts used in equal amount incoagulable gas can contract significantly
Short, its overall exhaust capacity improves about 50% than traditional lithium bromide absorption-type machine unit.
Brief description of the drawings
Fig. 1 is the structure flow chart of conventional lithium bromide absorption-type machine unit；
Fig. 2 is the structure flow chart of embodiment 1 in the utility model；
Fig. 3 is the structure flow chart of embodiment 2 in the utility model；
Fig. 4 is the structure flow chart of embodiment 3 in the utility model.
In figure：1- absorbers, 2- evaporators, 3- regenerators, 4- condensers, 5- heat exchangers, 6- solution coolers, 7- is molten
Liquid pump, 8- refrigerant pumps, 9- air extractors, 10- air storage chambers, 11- injection heads.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
Fig. 2 is a kind of lithium bromide absorption-type machine unit with solution cooler described in the utility model, is specifically included：Absorb
Device 1, evaporator 2, regenerator 3, condenser 4, heat exchanger 5, solution cooler 6, solution pump 7, refrigerant pump 8, air extractor 9,
Pipeline, valve of air storage chamber 10, injection first 11 and connecting components etc..Solution cooler 6 be arranged on connection solution pump 7 export and
On the branch line of air extractor, the high temperature side entrance of solution cooler 6 and the outlet of solution pump are connected by branch line, its
High temperature side outlet connects injection first 11, and the low temperature side entrance of solution cooler 6 is connected with the export pipeline of refrigerant pump 8 by branch road X,
The low temperature side outlet of solution cooler is connected by pipeline with evaporator 2.
The water as refrigerant of evaporator 2 is in the presence of refrigerant pump 8, and most of water as refrigerant carries out refrigerant self-loopa operating, wherein
Sub-fraction water as refrigerant enters solution cooler 6 by branch road X, and the weak solution for entering solution cooler 6 is cooled down, cold
But the weak solution after enters air extractor 9 and carries out injection, and the water as refrigerant after heat exchange is then back in evaporator 2 and carried out again
Recycle.
Weak solution is reduced in solution cooler 6 by temperature after cryogen water cooling, in supercooled state, into air extractor
Injection head nozzle at injection, form local compared with low-pressure area, the formation compared with low-pressure area is easier to extract the incoagulability gas in unit out
Body, is conducive to improving the pumping performance of air extractor.
Embodiment 2：
Fig. 3 is a kind of lithium bromide absorption-type machine unit with solution cooler involved by the utility model, its structure and reality
Apply essentially identical in example 1, difference is that the present embodiment is to molten in solution cooler by the way of cold water in parallel
Liquid is cooled down.
In the present embodiment, the low temperature side entrance of solution cooler 6 and the cooling water outlet main pipe rail b of lithium bromide absorption-type machine unit
Connected by branch road Y, the low temperature side outlet of solution cooler passes through pipeline and the cold water inlet house steward of lithium bromide absorption-type machine unit
Road a connections.
The cold water produced out from unit, wherein sub-fraction enter dilute molten in solution cooler 6, with solution cooler 6
Liquid heat convection, another part cold water then returns directly to cooling water outlet main pipe rail b and used, and is changed with solution cooler 6
Cold water after heat is linked on cold water inlet main pipe rail a, and unit progress is passed through after confluxing with the cold water on cold water inlet main pipe rail
Circulation.
Weak solution is reduced in solution cooler 6 by temperature after the cold water cooling of unit, in supercooled state, into pumping
Injection at the injection head nozzle of device, forms local compared with low-pressure area, the formation compared with low-pressure area is easier to extract not coagulating in unit out
Property gas, be conducive to improve air extractor pumping performance.
Embodiment 3：
Fig. 4 is a kind of lithium bromide absorption-type machine unit with solution cooler involved by the utility model, its structure and reality
Apply essentially identical in example 1, difference is that the present embodiment is in solution cooler by the way of cooling water in parallel
Solution is cooled down.
In the present embodiment, the low temperature side entrance of solution cooler 6 and the cooling water inlet house steward of lithium bromide absorption-type machine unit
Road c is connected by branch road Z, and the low temperature side outlet of solution cooler passes through pipeline and the coolant outlet of lithium bromide absorption-type machine unit
Main pipe rail d connections.
The cooling water sub-fraction therein that unit is introduced is entered in solution cooler 6 by branch road Z, with solution cooler
Weak solution heat convection in 6, a small amount of cooling water after cooling is collaborated with participating in the cooling water of set heat exchange, is back to cold
But water out main pipe rail d, and finally return that cooling tower cooler.
Temperature is reduced weak solution after cooled water cooling in solution cooler 6, in supercooled state, into air extractor
Injection head nozzle at injection, form local compared with low-pressure area, the formation compared with low-pressure area is easier to extract the incoagulability gas in unit out
Body, is conducive to improving the pumping performance of air extractor.
Above example is that it, which is implemented, is not subject to the restrictions described above to exemplary description of the present utility model,
Lithium bromide absorption-type machine unit in the utility model can be refrigeration machine or absorption heat pump, and the structure of unit can also be using single
Segmentation, two section type or multi-segment structure.
Claims (6)
1. a kind of lithium bromide absorption-type machine unit with solution cooler, including absorber, evaporator, regenerator, condenser, heat are handed over
The pipeline and valve of parallel operation, air extractor and connecting components, evaporator are connected with refrigerant pump, and the weak solution outlet of absorber connects
Solution pump is connected to, the outlet of the solution pump is connected by the injection head of a branch line and air extractor, it is characterised in that：Even
Have additional solution cooler on the branch line for connecing solution pump discharge and air extractor, the high temperature side entrance of solution cooler with it is molten
The outlet of liquid pump is connected by the branch line, and its high temperature side outlet connection injection head, the low temperature side of solution cooler passes through
Pipeline accesses the cooling medium for cooling down high-temperature side weak solution.
2. the lithium bromide absorption-type machine unit according to claim 1 with solution cooler, it is characterised in that：The solution is cold
But the low temperature side entrance of device is connected with refrigerant pump export pipeline by branch road X, and the low temperature side outlet of solution cooler passes through pipeline
It is connected with evaporator.
3. the lithium bromide absorption-type machine unit according to claim 1 with solution cooler, it is characterised in that：The solution is cold
But the low temperature side entrance of device and the cooling water outlet main pipe rail of lithium bromide absorption-type machine unit are connected by branch road Y, solution cooler
Low temperature side outlet is connected by pipeline and the cold water inlet main pipe rail of lithium bromide absorption-type machine unit.
4. the lithium bromide absorption-type machine unit according to claim 1 with solution cooler, it is characterised in that：The solution is cold
But the low temperature side entrance of device and the cooling water inlet main pipe rail of lithium bromide absorption-type machine unit are connected by branch road Z, solution cooler
Low temperature side outlet pass through pipeline and the coolant outlet main pipe rail of lithium bromide absorption-type machine unit and connect.
5. according to any described lithium bromide absorption-type machine units with solution cooler of claim 1-4, it is characterised in that：It is described
Lithium bromide absorption-type machine unit is refrigeration machine or absorption heat pump.
6. according to any described lithium bromide absorption-type machine units with solution cooler of claim 1-4, it is characterised in that：It is described
The structure of lithium bromide absorption-type machine unit is unistage type, two section type or multisection type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214227.5U CN206609178U (en) | 2017-03-07 | 2017-03-07 | A kind of lithium bromide absorption-type machine unit with solution cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214227.5U CN206609178U (en) | 2017-03-07 | 2017-03-07 | A kind of lithium bromide absorption-type machine unit with solution cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206609178U true CN206609178U (en) | 2017-11-03 |
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ID=60165753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214227.5U Active CN206609178U (en) | 2017-03-07 | 2017-03-07 | A kind of lithium bromide absorption-type machine unit with solution cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206609178U (en) |
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2017
- 2017-03-07 CN CN201720214227.5U patent/CN206609178U/en active Active
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