CN104567091B - hot water heating absorption refrigerator - Google Patents
hot water heating absorption refrigerator Download PDFInfo
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- CN104567091B CN104567091B CN201310511945.5A CN201310511945A CN104567091B CN 104567091 B CN104567091 B CN 104567091B CN 201310511945 A CN201310511945 A CN 201310511945A CN 104567091 B CN104567091 B CN 104567091B
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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
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/007—Machines, plants or systems, using particular sources of energy using solar energy in sorption type systems
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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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
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention provides the Absorption Refrigerator that can shorten starting time when letting cool gas.This Absorption Refrigerator possesses：Regenerator (3), condenser (5), vaporizer (7), absorber (9), weak solution pipeline (15), and concentrated solution pipeline (17)；In described Absorption Refrigerator, memory element stores multiple groups of operating pump operating threshold value and pump outage threshold, control unit is when refrigeration machine starts, and when the inlet temperature of circulation supply to the hot water of regenerator (3) is higher than operating pump operating threshold value, operating pump (33), when the inlet temperature of circulation supply to the hot water of regenerator (3) lowly arrives below pump outage threshold, stop pump (33), switch unit is by based on weather, season switching operating pump operating threshold value and the group of pump outage threshold, so as to shorten the operating starting time of Absorption Refrigerator.
Description
Technical field
The present invention relates to hot water heating Absorption Refrigerator, more particularly to possess using hot water as heating source regenerator
The driving hot water heating Absorption Refrigerator of thermal medium.
Background technology
Using reclaimed from the various exhaust heat sources such as electromotor (combustor), fuel cell, factory heat extraction or, the sun
The Absorption Refrigerator that the thermal medium of the heat of the natural energies such as energy, underground heat is driving by regenerator, condenser, vaporizer and is inhaled
Receive device etc. to constitute.In a regenerator, by heating after thermal medium heat come heat dilute solution, thus generate refrigerant vapour with
Concentrated solution.And, respectively refrigerant vapour is guided to condenser, concentrated solution is guided to absorber.Flow into the system of condenser
Refrigerant vapor is cooled and liquefies.It is directed to vaporizer by the refrigerant vapour after condenser liquefaction.It is directed to steaming
Send out the refrigerant liquid of device and secondary refrigerant carries out heat exchange, thus evaporation and cooling secondary refrigerant.Secondary system after cooling
Cryogen supplies to the indoor set etc. of such as idle call, is used for letting cool gas etc..The system producing by vaporizer to absorber guiding
Refrigerant vapor.The refrigerant vapour being directed to absorber is absorbed by the concentrated solution guiding to absorber from regenerator, thus raw
Become weak solution.Now, concentrated solution absorption refrigeration agent steam and the heat that produces is passed through to be handed over heat in the cooling being arranged in absorber
In parallel operation, the cooling water of circulation removes.In addition, the weak solution generating by absorber is supplied to regenerator.
In the driving Absorption Refrigerator of this thermal medium, by the thermal medium of set point of temperature is supplied to regeneration
Device is such that it is able to be cooled to desired temperature by secondary refrigerant.However, in the operating of Absorption Refrigerator, that is, inhaling
When receipts formula refrigeration machine starts, due to flow into regenerator weak solution etc. temperature than steady running when temperature low, so again
In raw device, many during the heat ratio steady running required for concentrated solution in order to heat.
On the other hand although carrying out the operating condition also according to thermal source for the heat of self-heat power, but nearly constant.Therefore, inhaling
Receipts formula refrigeration machine start when, due to regenerator consume heat ratio steady running when many, so the temperature of thermal medium is reduced to ratio
The temperature of regulation is low.Accordingly, it would be desirable to becoming set point of temperature to the temperature of thermal medium, becoming to Absorption Refrigerator and carry out
Starting time till the state of steady running.Due to start cold air operation when it is desirable to be able to change as quickly as possible to
Steady running, so this starting time will be shortened.
However, in Absorption Refrigerator, in order to prevent secondary refrigerant from freezing, being configured to have makes in concentrated solution pipe
Bypass line and the valve located at this bypass line that the concentrated solution of road circulation circulates in the bottom of absorber.
Therefore, inventor herein consider following method to solve described problem, i.e. by absorption system
When cold starts, open the valve of this bypass line, concentrated solution is not to contact with the heat exchanger for cooling in absorber
The bottom of mode inflow absorber, thus preventing concentrated solution to be cooled with heat exchanger cooling, to improve the intensification effect of concentrated solution
Rate, and shorten starting time.But, even if concentrated solution is not contacted with the cooling heat-absorbing exchanger in absorber, flow into quilt
Concentrated solution in chilled absorber also can be cooled in absorber.Therefore, even if making in this way it is also difficult to fully
Ground shortens starting time.
Content of the invention
The problem of the present invention is, shorten possess using hot water as the regenerator of heating source hot water heating absorption refrigeration
Machine lets cool starting time during gas.
In order to solve described problem, the hot water heating Absorption Refrigerator of the present invention has：Regenerator, it is by using from heat
Heat that source is reclaimed and the hot water that generates carrys out heat dilute solution, thus generating refrigerant vapour and concentrated solution；Condenser, its cooling is simultaneously
Liquefy the refrigerant vapour being generated by this regenerator；Vaporizer, its by by this condenser liquefy after refrigerant liquid with secondary
Heat exchange between cold-producing medium, to cool down described secondary refrigerant, and so that described refrigerant liquid is evaporated thus generating cold-producing medium
Steam；Absorber, it makes to be absorbed to described concentrated solution by the refrigerant vapour that this vaporizer generates, thus generating weak solution；Dilute
Solution line, it will be guided to described regenerator by the weak solution that this absorber generates；Pump, it is installed on this weak solution pipeline,
Thus to being pressurizeed and guided to described regenerator by the weak solution that described absorber generates；And concentrated solution pipeline, it will be by institute
The concentrated solution stating regenerator generation guides to described absorber, and described hot water heating Absorption Refrigerator is characterised by possessing：
Memory element, it is stored in and is compared with the inlet temperature of the described hot water to the circulation supply of described regenerator when this refrigeration machine starts
Multiple pumps operate threshold values and multiple pumps that the inlet temperature with the described hot water to the circulation supply of described regenerator compares stop
Only threshold value, the first pump operating threshold value that the plurality of pump operates in threshold value be set as higher than the second pump threshold temperature that operates, described
The first pump stopping threshold value in multiple pump outage thresholds is set as higher than the second pump outage threshold temperature, by described first pump operating
Threshold value to be stored as first threshold group with described first pump outage threshold, by described second pump operating threshold value and described second pump
Outage threshold to store as Second Threshold group；Switch unit, it switches described first threshold group and described Second Threshold group；With
And control unit, its in the case that described first threshold group is switched to by described switch unit, when this refrigeration machine starts,
And when the inlet temperature of circulation supply to the described hot water of described regenerator is higher than described first pump operating threshold value, operating is described
Pump, when the inlet temperature of circulation supply to the described hot water of described regenerator lowly arrives below described first pump outage threshold,
Stop described pump, described first pump outage threshold is set as lower than described first pump operating threshold value, by described switch unit
In the case of switching to described Second Threshold group, when this refrigeration machine starts, and in circulation supply to described in described regenerator
When the inlet temperature of hot water is higher than described second pump operating threshold value, operate described pump, in the institute of circulation supply to described regenerator
When the inlet temperature stating hot water is lowly to below described second pump outage threshold, stop described pump, described second pump outage threshold
It is set as lower than described second pump operating threshold value.
For example, described hot water generates using from the heat extraction of combustor or fuel cell or naturally recoverable heat.
For example, described heat is reclaimed from described natural energy using equipment by natural energy.
For example, described natural energy is solar energy, and described natural energy is using the solar energy profit that equipment is using described solar energy
Use equipment.
For example, described solar utilizing equipment is to generate the solar water heater of described hot water using described solar energy.
For example, described natural energy is underground heat, and described natural energy is using the geothermal utilization equipment that equipment is using described underground heat.
According to this structure, when refrigeration machine starts, described first threshold group is being switched to by described switch unit
In the case of, it is increased to more a height of than the first pump operating threshold value set in advance to the inlet temperature of the hot water of regenerator to circulation supply
Only, due to the weak solution of absorber not being delivered to regenerator, therefore the solution in regenerator will not be flowed into from absorber dilute
Solution cools down, thus the solution in regenerator accelerates because of the speed that hot water heats up.Temperature due to the solution in regenerator rises
Carry out rapidly, it is possible to shortening the starting time.
Even if in addition, after pump operation start, being less than first in the inlet temperature of circulation supply to the hot water of regenerator
In the case of pump outage threshold, described control unit also can stop pump, and described first pump outage threshold is set as that ratio presets
First pump operating threshold temperature low.That is, if between regenerator and thermal source, the inlet temperature of the regenerator of hot water of circulation drops
It is lower than the first pump operating threshold value, then need the cost time to hot water temperature's recovery, thus the performance of refrigerating capacity postpones,
But due to be reduced to lower than the first pump outage threshold in the case of stop pump, it is possible to shortening the starting time, and can
Realize stability contorting.It is configured in this case, exceed in the inlet temperature of the regenerator of hot water described set in advance
Start pump again after first pump operating threshold value.
Further, since being based on weather, season, appointing in first threshold group and Second Threshold group, is switched to by switch unit
One, it is possible to more efficiently shortening Absorption Refrigerator to let cool starting time during gas.
Brief description
Fig. 1 is the block diagram with action for the brief configuration of the reference example representing hot water heating Absorption Refrigerator.
Fig. 2 is the frame with action for the brief configuration of an embodiment representing the Absorption Refrigerator being applied to the present invention
Figure.
Fig. 3 is the schematic diagram of the control action that the embodiment shown in Fig. 2 is described.
The effect of invention
In accordance with the invention it is possible to shorten the starting time of Absorption Refrigerator.
The explanation of reference：
1... Absorption Refrigerator；3... regenerator；5... condenser；7... vaporizer；9... absorber；11... plus
Heat heat exchanger；15... weak solution pipeline；17... concentrated solution pipeline；19a... heat exchanger for cooling；19b... cools down
Use heat exchanger；27... evaporation heat exchanger；33... pump；50... control unit；60... memory element.
Specific embodiment
Hereinafter, for the reference example of hot water heating Absorption Refrigerator, illustrate with reference to Fig. 1.Fig. 1 is to represent that hot water adds
The brief configuration of heat absorption formula refrigeration machine and the block diagram of action.Additionally, in this reference example, using Absorption Refrigerator as with
In case of the air-conditioning device that interior etc. is let cool with gas to use, son illustrates.Therefore, the absorption system of this reference example
Cold cools down to the secondary refrigerant of supply to indoor set.
As shown in figure 1, the Absorption Refrigerator of this reference example is by regenerator 3, condenser 5, vaporizer 7 and absorber 9
Deng composition.
Regenerator 3 internally possesses the heat-up heat exchanger 11 of medium passing, and this heat-up heat exchanger is never schemed
The hot source recovery heat showing.Heat-up heat exchanger 11 is connected with heat medium pipeline 13, so that thermal medium can be handed in heating heat
Circulate between parallel operation 11 and thermal source.It is provided with the portion of dripping 12 above heat-up heat exchanger 11, portion 12 of dripping is with circulation by inhaling
The one end receiving the weak solution pipeline 15 of weak solution that device 9 generates links.The bottom of regenerator 3 with concentrated solution is guided to absorber
One end of 9 concentrated solution pipeline 17 links.In addition, regenerator 3 is linked with condenser 5, so that the cold-producing medium being produced by regenerator 3
Steam can circulate.
Condenser 5 internally possesses the heat exchanger for cooling for the cooling water circulation by cooling tower cooler (not shown)
19a.Heat exchanger for cooling 19a is connected with cooling water pipeline 21 so that cooling water can heat exchanger for cooling 19a with cold
But circulate between tower.In addition, the bottom of condenser 5 is linked with one end of refrigerant liquid pipeline 23.Refrigerant liquid pipeline 23 another
One end is linked with the portion 25 of dripping in vaporizer 7.
Vaporizer 7 is provided with the evaporation heat exchange that the secondary refrigerant such as water of supply extremely indoor set (not shown) is circulated
Device 27, is provided with the portion of dripping 25 above evaporation heat exchanger 27.Evaporation heat exchanger 27 and secondary refrigerant pipeline 29
Connection, so that secondary refrigerant can circulate between evaporation heat exchanger 27 and indoor set.In addition, vaporizer 7 and absorption
Device 9 links, so that the refrigerant vapour being produced by vaporizer 7 can circulate.
Absorber 9 internally possesses the heat exchanger for cooling of the cooling water circulation for use by cooling tower cooler (not shown)
19b.Heat exchanger for cooling 19b is connected with cooling water pipeline 21 so that cooling water can heat exchanger for cooling 19b with cold
But circulate between tower.It is provided with the portion of dripping 31 above heat exchanger for cooling 19b, portion 31 and the one of concentrated solution pipeline 17 of dripping
End links.In addition, the bottom of absorber 9 is linked with one end of weak solution pipeline 15.It is provided with pump 33, pump 33 in weak solution pipeline 15
The weak solution being stored in the bottom of absorber 9 is delivered to regenerator 3.In addition, heat exchanger for cooling 19a and cooling heat exchange
Device 19b connects via cooling water pipeline 21, by cool down tower cooler after cooling water circulate successively heat exchanger for cooling 19b with
Heat exchanger for cooling 19a is thus be circulated.
Between the pump 33 and regenerator 3 of weak solution pipeline 15, it is provided with for dilute molten in weak solution pipeline 15
Concentrated solution in liquid and concentrated solution pipeline 17 carries out the heat exchanger 35 of heat exchange.In addition, heat exchanger 35 and absorber 9 it
Between concentrated solution pipeline 17 be provided with bypass line 37, so that weak solution pipeline 15 is mutually got in touch with concentrated solution pipeline 17, in bypass pipe
Road 37 is provided with valve 39.
Temperature meter 41 is located at concentrated solution pipeline 17, and is disposed in position and the heat exchanger of bypass line 37 connection
Between 35.Temperature meter 43 located at heat medium pipeline 13 towards regenerator 3 entrance side.Temperature meter 41,43 with not
The control unit electrical connection of diagram.
The action of Absorption Refrigerator and the features of the present invention for this structure illustrate.In steady running
When, carry out and existing Absorption Refrigerator identical action.First, the weak solution in absorber 9 is pressurizeed by pump 33, dilute molten
Liquid pipeline 15 circulates, and supplies to the portion 12 of dripping of setting in regenerator 3.Supply to drop to the weak solution in the portion of dripping 12 and add
Heat heat exchanger 11, and flow down on the surface of heat-up heat exchanger 11, it has been recovered comfortable heat-up heat exchanger
The thermal medium heating of the heat of thermal source of circulation in 11, thus be separated into refrigerant vapour and concentrated solution.Cold-producing medium after separating steams
Gas is directed to condenser 5.It is directed to the refrigerant vapour of condenser 5 and the cold of circulation in heat exchanger for cooling 19a
But water carries out heat exchange, thus carrying out heat release to condensation heat.Thus, refrigerant vapour condensation liquefaction is thus become refrigerant liquid,
Flow down on heat exchanger for cooling 19a surface.Refrigerant liquid after condenser 5 liquefies is by the bottom with condenser 5 even
Logical refrigerant liquid pipeline 23, is directed to the portion 25 of dripping of setting in vaporizer 7.It is directed to the cold-producing medium in the portion of dripping 25
Liquid drops to evaporation heat exchanger 27 from the portion of dripping 25, and enters with the secondary refrigerant of circulation in evaporation heat exchanger 27
Row heat exchange.Pass through to absorb heat of evaporation from secondary refrigerant, thus cooling down to secondary refrigerant.Here, absorb heat
Refrigerant liquid evaporation, become refrigerant vapour again.
In addition, the concentrated solution after regenerator separates passes through concentrated solution pipeline 17, it is directed to dripping in absorber 9
Portion 31.The concentrated solution being directed to the portion of dripping 31 drops to heat exchanger for cooling 19b and is cooled.Concentrated solution after cooled exists
The surface of cooling heat exchanger 19b flows down, the steam of absorption refrigeration agent simultaneously.The concentrated solution absorbing refrigerant vapour becomes dilute molten
Liquid, and supplied to the portion 12 of dripping located at regenerator 3 by pump 33.
When operating starts, control unit carries out any one of action of following explanation.Based on from operation start warp
In the case that the elapsed time crossing carries out the control of valve 39, first, control unit sends the valve 39 opened located at bypass line 37
Signal, so that concentrated solution is circulated in bypass line 37.Thus, concentrated solution flows into weak solution pipe, thus being pressurizeed and guided by pump 33
To regenerator 3.By this circulation, concentrated solution is reproduced device 3 heat temperature raising in the way of not cooled down by absorber 9.And, from
After the stipulated time, control unit sends the signal of shutoff valve 39, shutoff valve 39, so that concentrated solution is not to side for operation start
Circulate in siphunculus road 37.Thus, concentrated solution is directed to the portion 31 of dripping of setting in absorber 9, starts steady running.
In addition, being based not only on the elapsed time passed through from operation start, the also temperature based on concentrated solution or recovery
In the case that the temperature of the thermal medium of heat carries out the control of valve 39, control unit (not shown) receive from temperature meter 43 or
The signal that person's temperature meter 41 at least one party sends, wherein, described temperature meter 43 measurement has reclaimed the heat of self-heat power
Thermal medium temperature；Described temperature meter 41 measures the temperature of the concentrated solution of circulation in concentrated solution pipeline 17.Controlling
Unit receive signal reach specified value in the case of, i.e. thermal medium or concentrated solution temperature be set point of temperature more than
In the case of, control unit sends the signal of shutoff valve 39, shutoff valve 39, thus concentrated solution will not circulate in bypass line 37.
Thus, concentrated solution flows into the portion 31 of dripping of setting in absorber 9, starts steady running.In addition, in control unit
In the case that the signal receiving is not up to specified value, i.e. be not more than set point of temperature in the temperature of thermal medium or concentrated solution
In the case of, control unit sends the signal opening valve 39, opens valve 39, so that concentrated solution circulates in bypass line 37.Thus,
The concentrated solution flowing out from regenerator 3 passes through bypass line 37 from concentrated solution pipeline 17, and passes through weak solution pipeline 15, flows into again
Raw device 3.By this circulation, concentrated solution is not to be heated up in the way of cooling down in absorber 9.
In addition, before the stipulated time, and in the case that the temperature of thermal medium, concentrated solution reaches set point of temperature,
Control unit sends the signal of shutoff valve 39 according to the signal receiving.Although in addition, the temperature in thermal medium, concentrated solution reaches rule
Constant temperature degree but again below set point of temperature in the case of, according to receive signal, send the signal opening valve 39.Additionally, in warp
After spending the stipulated time, even if in the case that the signal receiving not is more than set point of temperature, not sending the letter opening valve 39 yet
Number.
So, in this reference example, possess that one end is linked with weak solution pipeline 15, the other end and concentrated solution pipeline 17 link
Bypass line 37, in Absorption Refrigerator operation start, by opening the valve 39 located at bypass line 37, can be not make
Concentrated solution after regenerator 3 heats circulates by way of circulating in absorber 9.Therefore, it is possible to avoid concentrated solution absorbing
The cooling of the concentrated solutions of generation such as the heat release being carried out in the case of circulation in device 9, and the intensification effect of concentrated solution can be improved
Rate.Thereby, it is possible to shorten the starting time of operating.
And, in this reference example, it is provided with by based on the elapsed time passed through from operation start, controlling located at bypass pipe
The control unit of the opening and closing of valve 39 on road 37 is such that it is able to automatically control the opening and closing of valve when starting.And, control unit is not
It is based only upon the elapsed time passed through from operation start, and at least one in the temperature of the temperature based on concentrated solution or thermal medium
The temperature of side, to control the opening and closing of the valve 39 located at bypass line 37, before the stipulated time, in thermal medium, concentrated solution
Temperature reach set point of temperature in the case of, by according to receive signal, send the signal of shutoff valve 39, even if thus without
Spend the stipulated time, if the temperature of thermal medium or concentrated solution becomes the state being capable of steady running, can immediately begin to stable
Operating is such that it is able to shorten starting time further.And, after the stipulated time, even if in the signal receiving not being
In the case of more than specified value, do not send the signal opening valve 39, even if thus temperature in thermal medium or concentrated solution yet
In the case of reducing, valve 39 also will not be opened, therefore, it is possible to prevent stopping during steady running.
In addition, although temperature meter 41,43 is perception set point of temperature and signal is delivered to control list in this reference example
The structure of unit, but as long as temperature measurement unit can reach the situation of the set point of temperature starting steady running with control unit
The opening and closing of lower control valve 39, temperature measurement unit can also be configured to, sense temperature and usual signal is delivered to control
Unit processed, control unit detects the situation becoming set point of temperature come the opening and closing of control valve 39 according to this signal.
Next, for an embodiment of the Absorption Refrigerator being applied to the present invention, illustrating with reference to Fig. 2.
Embodiment shown in Fig. 2 aspect different from the reference example shown in described Fig. 1 is to be configured to, be not provided with bypass line 37 with
And valve 39, controlling pump 33 start stop control unit 50 when refrigeration machine starts, to regenerator 3 supply thermal medium temperature
Till degree becomes higher than predetermined temperature, described pump 33 is made to stop.Due to other structures and the reference example shown in described Fig. 1
Identical, so marking identical reference and omitting the description.
In the present embodiment, when refrigeration machine operating starts, control unit 50 carries out action as described below.Control
Unit processed is for example by CPU (Centra1Processing Unit：Central processing unit) etc. microprocessor constitute.First, control list
With predetermined time interval receipt signal, this signal represents hot water temperature's (the thermal medium temperature sending from temperature meter 43 for unit 50
Degree) T, wherein, described temperature meter 43 measurement has reclaimed the temperature of the thermal medium of heat of self-heat power.Have received expression hot water
The control unit 50 of the signal of temperature T carries out judgement as shown in Figure 3.That is, the hot water temperature T receiving in control unit 50 does not reach
To in the case of specified value To (pump operating threshold value), in the case that is, the temperature in thermal medium is below set point of temperature To, control
Unit 50 processed sends the signal stopping pump 33, inoperative pump 33.Thus, the weak solution of absorber 9 may not flow into regenerator, regeneration
The weak solution that weak solution in device 3 will not be flowed into cools down, and thermal medium (hot water) heat temperature raising being circulated.
Judging according to the lasting execution of the time interval of regulation, when hot water temperature T is more than To, control shown in described Fig. 3
Unit 50 processed starts the operating of pump 33.Thus, the weak solution of absorber 9 guides to regenerator 3 via heat exchanger 35.If hot water
Plan temperature be, for example, TADEG C, then described To is set as comparing TADEG C low temperature.In hot water temperature T more than To DEG C and two
The temperature of the cold water that secondary refrigerant line 29 is discharged is T set in advanceBWhen below DEG C, the operating of refrigeration machine starts end and starts
Steady running.
Additionally, being set with the T lower than described To in described control unit 50CDEG C (pump outage threshold), opens in pump 33 operating
After beginning, due to certain reason hot water temperature be reduced to lower than described To in the case of, if hot water temperature T be described TCMore than DEG C
When, then keep intact and continue the operating of pump 33, be less than T in hot water temperature TCDEG C when, stop pump 33.In this case, if hot water
Temperature becomes higher than described To, then control unit 50 starts again at the operating of pump 33.
Due to the action by this control unit 50, when refrigeration machine starts, supply to the heat medium temperature of regenerator 3
Till T becomes higher than predetermined temperature To, the weak solution of absorber 9 will not be sent to regenerator 3, so in regenerator 3
Solution will not be cooled down by the weak solution flowing into from absorber, the intensification therefore producing because of the thermal medium of the solution in regenerator
Speed accelerates.Risen by the temperature carrying out rapidly the solution in regenerator 3, thus shortening the starting time.Although from thermal source row
The heat going out changes because of the operating condition of thermal source, but if operating condition is constant, it is also assumed that giving in regeneration
Between device 3 and thermal source, the heat of the hot water of circulation is nearly constant.In this case, again flow into again via regenerator 3 and thermal source
The temperature of the hot water of raw device 3 rises along with the temperature rising of the solution in regenerator 3.Therefore, by by described temperature To
It is set as the numerical value corresponding with the numerical value desired by the solution temperature in regenerator 3 such that it is able to open with suitable opportunity
The operating of beginning pump 33.
Additionally, after pump 33 operation start, when hot water temperature is less than described TC DEG C, control unit 50 is according to following reason
By stopping pump 33.That is, the heat producing from thermal source is not infinitely great, is usually provided with the refrigeration machine of the capacity meeting with heat.
Therefore, when refrigeration machine operating starts, there is the heat input regenerator 3 of more than certain specification, and initially than described To high temperature
Hot water temperature have after pump 33 operation start and be reduced to the situation lower than described To.If continuing the fortune of pump 33 in this state
Turn, then need the cost time to hot water temperature's recovery, thus the performance of refrigerating capacity postpones.Described structure can correspond to
This state is thus realize stablizing of control, and shortens the starting time.
In addition, in said embodiment although control unit 50 receive hot water temperature T exceed specified value To when
Start pump 33, be less than described T in hot water temperatureCDEG C when stop pump 33, but even if only will hot water temperature be less than described TCDEG C when
Stop pump 33 as control condition it is also possible to obtain the effect shortening the starting time.
In addition, in the present embodiment, as shown in Figure 3 although judging whether the hot water temperature T that control unit 50 receives reaches
To specified value To (pump operating threshold value), but multiple specified values To1 (first pump operating threshold value), To2 (the can also be prepared
Two pump operating threshold values), and be set as allowing hand over by the plurality of specified value To1, To2 by switch unit.For example, institute
Stating specified value To1, To2 is the first pump operating threshold value To1 and the second pump fortune lower than this first pump operating threshold value To1 temperature
Turn threshold value To2.Additionally, switch unit can also be made up of mechanical switch, the part as control unit 50 it is also possible to by
Electronic switch is constituted.
In the case that the second specified value To2 be have selected by switch unit, identical with the process of Fig. 3, control unit
50 judge whether the hot water temperature T receiving reaches the second specified value To2.For example, returning using using solar utilizing equipment
Receive the Absorption Refrigerator of heat in the case of, it is contemplated that to thermal medium temperature because weather, season and there are different feelings
Condition.Therefore, in bad weather, temperature relatively low season, switch to the second specified value of lower temperature by switch unit
To2, when weather is good, temperature higher season, switches to the first specified value To1 of higher temperature by switch unit, from
And can more efficiently shorten Absorption Refrigerator and let cool starting time during gas.
In addition, in said embodiment although being less than threshold value T in hot water temperatureCStop pump 33 when (pump outage threshold),
But multiple hot water temperatures, such as first threshold T can also be preparedC1 (the first pump outage threshold) and than this first threshold TC1
The low Second Threshold T of temperatureC2 (the second pump outage thresholds), by with by switch unit carry out the plurality of specified value To1,
The switching of To2 interlocks, and to set first threshold TC1 and Second Threshold TC2.That is, the first regulation have selected by switch unit
In the case of numerical value To1, also linkedly select first threshold TC1, the second specified value To2 have selected by switch unit
In the case of, also linkedly select Second Threshold TC2.
First pump is operated threshold value To1 and the first pump outage threshold T by memory element 60C1 group and the operating of the second pump
Threshold value To2 and the second pump outage threshold TC2 group is stored as multiple pumps operating threshold value and multiple pump outage threshold.
But, memory element 60 can also store more than three pumps operating threshold values and the group of pump outage threshold, and switch unit can also
Switch between pump operating threshold value and the group of pump outage threshold more than three.
Additionally, memory element 60 is made up of various memorizeies, hard disk drive etc..In addition, memory element 60 can be via
Network reads pump operating threshold value and the group of pump outage threshold from external server, and also can update and add pump operating
Threshold value and the group of pump outage threshold.
So, due to based on weather, season, selecting object that is, the threshold value comparing with hot water temperature by switch unit,
It is possible to more efficiently shortening Absorption Refrigerator to let cool starting time during gas.
According to present embodiment, due to the not key element to device additional spare, and only change the structure of control unit 50,
So cheap, easy, and can reliably shorten starting time.
Claims (6)
1. a kind of hot water heating Absorption Refrigerator, it has：
Regenerator, its by the hot water being generated using the heat reclaiming from thermal source come heat dilute solution, thus generating refrigerant vapour
With concentrated solution；
Condenser, its refrigerant vapour being generated by this regenerator that cools down and liquefy；
Vaporizer, its by by this condenser liquefy after refrigerant liquid and secondary refrigerant between heat exchange, to cool down institute
State secondary refrigerant, and so that described refrigerant liquid is evaporated thus generating refrigerant vapour；
Absorber, it makes to be absorbed to described concentrated solution by the refrigerant vapour that this vaporizer generates, thus generating weak solution；
Weak solution pipeline, it will be guided to described regenerator by the weak solution that this absorber generates；
Pump, it is installed on this weak solution pipeline, to being pressurizeed and guided to described regenerator by the weak solution that described absorber generates；
And
Concentrated solution pipeline, it will be guided to described absorber by the concentrated solution that described regenerator generates,
It is characterized in that, it is also equipped with：
Memory element, it is stored in inlet temperature when this refrigeration machine starts with the described hot water to the circulation supply of described regenerator
It is multiple that multiple pumps relatively operate threshold values and the inlet temperature with the described hot water to the circulation supply of described regenerator compares
Pump outage threshold, the first pump operating threshold value that the plurality of pump operates in threshold value be set as higher than the second pump threshold temperature that operates,
The first pump outage threshold in the plurality of pump outage threshold is set as higher than the second pump outage threshold temperature, by described first pump
Operating threshold value to store as first threshold group with described first pump outage threshold, and described second pump is operated threshold value and described the
Two pump outage thresholds to store as Second Threshold group；
Switch unit, it switches described first threshold group and described Second Threshold group；And
Control unit, it starts in this refrigeration machine in the case of switching to described first threshold group by described switch unit
When, and when the inlet temperature of circulation supply to the described hot water of described regenerator is higher than described first pump operating threshold value, operating
Described pump, lowly arrives below described first pump outage threshold in the inlet temperature of circulation supply to the described hot water of described regenerator
When, stop described pump, described first pump outage threshold is set as lower than described first pump operating threshold value, single by described switching
In the case that unit switches to described Second Threshold group, when this refrigeration machine starts, and the institute in circulation supply to described regenerator
State the inlet temperature of hot water higher than described second pump operating threshold value when, operate described pump, in circulation supply to described regenerator
When the inlet temperature of described hot water lowly arrives below described second pump outage threshold, stop described pump, described second pump stops threshold
Value is set as lower than described second pump operating threshold value.
2. hot water heating Absorption Refrigerator according to claim 1 it is characterised in that
Described hot water is generated using the heat extraction of combustor or fuel cell or from naturally recoverable heat.
3. hot water heating Absorption Refrigerator according to claim 2 it is characterised in that
Described heat utilizes equipment by natural energy, reclaims from described natural energy.
4. hot water heating Absorption Refrigerator according to claim 3 it is characterised in that
Described natural energy is solar energy, and described natural energy is using the solar utilizing equipment that equipment is using described solar energy.
5. hot water heating Absorption Refrigerator according to claim 4 it is characterised in that
Described solar utilizing equipment is to generate the solar water heater of described hot water using described solar energy.
6. hot water heating Absorption Refrigerator according to claim 3 it is characterised in that
Described natural energy is underground heat, and described natural energy is using the geothermal utilization equipment that equipment is using described underground heat.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511945.5A CN104567091B (en) | 2013-10-25 | 2013-10-25 | hot water heating absorption refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310511945.5A CN104567091B (en) | 2013-10-25 | 2013-10-25 | hot water heating absorption refrigerator |
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| CN104567091B true CN104567091B (en) | 2017-03-01 |
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| JPS58127046A (en) * | 1982-01-22 | 1983-07-28 | Hitachi Ltd | Method of controlling solar heat collector |
| JPS59100336A (en) * | 1982-11-29 | 1984-06-09 | Matsushita Electric Ind Co Ltd | Gas hot water supplier |
| CN1150237A (en) * | 1995-08-31 | 1997-05-21 | 三洋电机株式会社 | Absorption refrigerator |
| CN1451934A (en) * | 2002-04-12 | 2003-10-29 | 三洋电机株式会社 | Absorption refrigerator |
| CN1743764A (en) * | 2004-08-30 | 2006-03-08 | 三洋电机株式会社 | Single double effect absorbing type refrigerator and operation method thereof |
| KR20090019254A (en) * | 2007-08-20 | 2009-02-25 | 엘지전자 주식회사 | Co-generation |
| CN102141319A (en) * | 2010-01-28 | 2011-08-03 | 三洋电机株式会社 | Absorption-type refrigerator |
| CN103245131A (en) * | 2012-02-03 | 2013-08-14 | Lg电子株式会社 | Low temperature generator and absorption type chiller-heater including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58127046A (en) * | 1982-01-22 | 1983-07-28 | Hitachi Ltd | Method of controlling solar heat collector |
| JPS59100336A (en) * | 1982-11-29 | 1984-06-09 | Matsushita Electric Ind Co Ltd | Gas hot water supplier |
| CN1150237A (en) * | 1995-08-31 | 1997-05-21 | 三洋电机株式会社 | Absorption refrigerator |
| CN1451934A (en) * | 2002-04-12 | 2003-10-29 | 三洋电机株式会社 | Absorption refrigerator |
| CN1743764A (en) * | 2004-08-30 | 2006-03-08 | 三洋电机株式会社 | Single double effect absorbing type refrigerator and operation method thereof |
| KR20090019254A (en) * | 2007-08-20 | 2009-02-25 | 엘지전자 주식회사 | Co-generation |
| CN102141319A (en) * | 2010-01-28 | 2011-08-03 | 三洋电机株式会社 | Absorption-type refrigerator |
| CN103245131A (en) * | 2012-02-03 | 2013-08-14 | Lg电子株式会社 | Low temperature generator and absorption type chiller-heater including the same |
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| Publication number | Publication date |
|---|---|
| CN104567091A (en) | 2015-04-29 |
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