CN101545696A - Absorption type water cooling and warming machine - Google Patents

Absorption type water cooling and warming machine Download PDF

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Publication number
CN101545696A
CN101545696A CN200910129837A CN200910129837A CN101545696A CN 101545696 A CN101545696 A CN 101545696A CN 200910129837 A CN200910129837 A CN 200910129837A CN 200910129837 A CN200910129837 A CN 200910129837A CN 101545696 A CN101545696 A CN 101545696A
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Prior art keywords
cold
pipe
cooling
evaporimeter
producing medium
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Granted
Application number
CN200910129837A
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Chinese (zh)
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CN101545696B (en
Inventor
石河豪夫
山崎志奥
梨本猛夫
小林唯人
西田一孝
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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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
    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
    • 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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • 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
    • F25B49/043—Operating continuously
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2507—Flow-diverting valves
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • 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

Abstract

The invention provides a single utility absorption type water cooling and warming machine. A circulation path of refrigerant and absorbent liquid is formed by connecting a regenerator, a condenser, a evaporator and an absorber match pipe. The cold and heat, the warm and heat supply are carried out. The former one supplies driving heat to the regenerator through a flow control valve and circulates the cooled water supplied from the cooling column to the absorber and the condenser, cold and heat are supplied to a load from an evaporator through a first coolant loading pipe. The latter supplies heat to the regenerator through a flow control valve using the driving heat source as the main heat source, and supplies heat to the evaporator from a sub-heat source, the cooling water flowing in the absorber and the condenser circulates to the load through a second coolant loading pipe. A refrigerant slot as a storage portion for storing a determined amount of refrigerant is disposed in the middle of the refrigerant pipe for delivering the refrigerant condensing liquefied by a condenser to the evaporator, a sub-refrigerant pipe as the refrigerant switching valve of the discharging mechanism is disposed at the bottom of the refrigerant slot, and a bypath refrigerant pipe by-passing the refrigerant switching valve from the top of the refrigerant slot is also disposed.

Description

Absorption cooling and warming water machine
Technical field
The present invention relates to a kind of substance effectiveness absorption cooling and warming water machine, in detail, relate to the absorption cooling and warming water machine of the regenerator that a kind of used heat such as cooling water that have boiler, engine use as driving heat source.
Background technology
In the past, disclosed the absorption cooling and warming water machine (for example with reference to patent documentation 1,2 etc.) as the thermal source of regenerator such as cooling water with engine.
This absorption cooling and warming water machine with the cooling waters such as cooling water of boiler or engine as thermal source, the use regenerator evaporates separation with cold-producing medium and carries to condenser from rare absorption liquid, and the absorption liquid that concentration is thickened above-mentioned cold-producing medium evaporation is carried to absorber.
Then, in condenser, utilize cooling water to carry to evaporimeter, in evaporimeter, spread to it in heat-transfer pipe and evaporation once more with above-mentioned condensation of refrigerant and as refrigerating fluid, above-mentioned cold-producing medium is circulated in this heat-transfer pipe to the refrigerating medium (Block ラ イ Application) of load cycle, in absorber, absorb the above-mentioned cold-producing medium of evaporation once more by absorption liquid, and, utilize above-mentioned cooling water to reclaim the heat of absorption liquid, thus carry out to above-mentioned load cold and hot (
Figure A200910129837D0003102933QIETU
Hot) supplying operation.In addition, above-mentioned cooling water circulates to cooling tower, and dispels the heat in air.
In addition, relative therewith, in Europe etc., constitute thermal source supply from main heat source to the regenerator of this substance effectiveness absorption cooling and warming water machine that carry out, and, carry out the thermal source of secondary thermal source to evaporimeter and supply with, the cooling water that will utilize when above-mentioned cold and hot supplying operation is as refrigerating medium, make its from condenser and absorber to load cycle, carry out running, thereby carry out supplying operation to warm (the warm Hot) of above-mentioned load as absorption heat pump.
Patent documentation 1:(Japan) spy opens clear 58-127066 communique
Patent documentation 2:(Japan) spy opens flat 8-233391 communique
But, in the absorption liquid concentration that circulates in absorption liquid concentration that circulates in the machine when carrying out above-mentioned cold and hot supplying operation and the machine when carrying out above-mentioned warm running, it is poor to exist aspect best average absorption liquid concentration, therefore, in general, perhaps carry out cold and hot supplying operation, perhaps carry out warm supplying operation, need in the above-mentioned two kinds of situations of selection any as absorption heat pump as substance effectiveness absorption cooling and warming water machine.At this moment, when having selected substance effectiveness absorption cooling and warming water machine, the warm supplying operation in the time of can not carrying out winter, and when having selected absorption heat pump, the cold and hot supplying operation in the time of can not carrying out summer.
Therefore, particularly in Europe, because of greenhouse effects in recent years, summer temperature rises, and the expectation that makes it carry out cold and hot supplying operation so requirement is used absorption heat pump as substance effectiveness absorption cooling and warming water machine is more and more higher, and expectation improves this point.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of substance effectiveness absorption cooling and warming water machine, it can easily switch cold and hot supplying operation and warm supplying operation, and no matter is when cold and hot supplying operation, still when warm supplying operation, can both turn round with optimal absorption liquid concentration.
In order to solve above-mentioned problem, the absorption cooling and warming water machine of first aspect invention is with regenerator, condenser, evaporimeter and absorber carry out pipe arrangement and connect and the circulating path of formation cold-producing medium and absorption liquid, this absorption cooling and warming water machine carries out cold and hot supplying operation and warm supplying operation, this cold and hot supplying operation is for to supply with driving heat source via flow control valve to regenerator, and, make from the cooling water circulation of cooling tower to absorber and condenser supply, and supply with cold and hot from described evaporimeter to load via the first refrigerating medium pipe, this warm supplying operation is that described driving heat source is supplied with to described regenerator as main heat source and via described flow control valve, supply with secondary thermal source to described evaporimeter, and make the described cooling water that flows at absorber and condenser to described load cycle via the second refrigerating medium pipe, this absorption cooling and warming water machine is characterised in that, outlet at evaporimeter is provided with first Temperature Detector, outlet at condenser is provided with second Temperature Detector, and transfer valve is set, load switched to the first refrigerating medium pipe or the second refrigerating medium Guan Zeyi ground be connected, when load is switched to when being connected with the first refrigerating medium pipe, control the aperture of flow control valve according to the temperature that detects by first Temperature Detector, when load is switched to when being connected with the second refrigerating medium pipe, control the aperture of flow control valve according to the temperature that detects by second Temperature Detector, and, at the refrigerant pipe that connects to evaporimeter from condenser midway, the output mechanism that setting stores the storing section of cold-producing medium and cold-producing medium is flowed out to evaporimeter from this storing section, described load are switched to when the first refrigerating medium pipe or the connection of the second refrigerating medium pipe this output mechanism are opened and closed.
The absorption cooling and warming water machine of second aspect invention, on the basis of first aspect invention, it is characterized in that, when load is switched to when being connected with the first refrigerating medium pipe, opening output mechanism so that cold-producing medium does not store under the state in storing section turns round, when load is switched to when being connected with the second refrigerating medium pipe, closing output mechanism so that cold-producing medium stores under the state of storing section turns round.
The absorption cooling and warming water machine of third aspect invention, on the basis of first aspect or second aspect invention, it is characterized in that, described storing section has cold-producing medium at an upper portion thereof always can be from condenser to the mobile refrigerant pipe of evaporimeter, and described output mechanism is located between the bottom and evaporimeter of storing section.
The absorption cooling and warming water machine of first aspect invention, if thermal source is supplied with to regenerator, cooling water is supplied with to absorber and condenser, then can carry out cold and hot supplying operation to load from evaporimeter, and this absorption cooling and warming water machine can carry out warm supplying operation by following operation, promptly, if thermal source (main heat source) is supplied with to regenerator, and secondary thermal source is supplied with to evaporimeter, then turn round, and the cooling water that uses during with above-mentioned cold and hot supplying operation is to described load cycle as absorption heat pump.
Absorption cooling and warming water machine of the present invention is simple in structure, can easily carry out the control concentration of the lithium bromide in rare absorption liquid or the dope is thinning or that thicken as required, therefore, it has following significant effect, promptly by a table apparatus, refrigeration in summer can be carried out high efficiency cooling operation season, and heating season in the winter time can easily switch to heating and carry out high efficiency warming operation.
The absorption cooling and warming water machine of second aspect invention, on the basis of first aspect invention, it is characterized in that, when load is switched to when being connected with the first refrigerating medium pipe, opening output mechanism so that cold-producing medium does not store under the state in storing section turns round, when load is switched to when being connected with the second refrigerating medium pipe, closing output mechanism so that cold-producing medium stores under the state of storing section turns round, by the storing section that stores refrigerating fluid being set between described condenser and described evaporimeter and making the output mechanism that stores in the refrigerating fluid outflow of this storing section, thereby has more significant effect, promptly, the concentration of the absorption liquid that will circulate in machine switches to and is fit to cold and hot supplying operation, the concentration of warm supplying operation, and can carry out each running with optimal absorption liquid concentration.
Promptly, for example in cold and hot supplying operation, described output mechanism is opened, the refrigerating fluid that stores in storing section is flowed out, the low concentration that absorption liquid concentration in the machine is gone up as a whole and turning round in warm supplying operation, closes described output mechanism, refrigerating fluid is stored in storing section, the high concentration that the absorption liquid concentration in the machine is gone up as a whole and turning round.
The absorption cooling and warming water machine of third aspect invention, on the basis of first aspect or second aspect invention, it is characterized in that, described storing section has cold-producing medium at an upper portion thereof always can be from condenser to the mobile refrigerant pipe of evaporimeter, described output mechanism is located between the bottom and evaporimeter of storing section, by the top in storing section cold-producing medium being set always can be from condenser to the mobile refrigerant pipe of evaporimeter, and between the bottom of storing section and evaporimeter, described output mechanism is set, thereby has more significant effect, promptly, the concentration of the absorption liquid that will circulate in machine switches to and is fit to cold and hot supplying operation, the concentration of warm supplying operation, and can carry out each running with optimal absorption liquid concentration effectively.
Description of drawings
Fig. 1 is the key diagram of an embodiment of the integral body of explanation absorption cooling and warming water machine of the present invention;
Fig. 2 is the key diagram that the embodiment when using absorption cooling and warming water machine of the present invention shown in Figure 1 to carry out cooling operation is described;
Fig. 3 is the key diagram that the embodiment when using absorption cooling and warming water machine of the present invention shown in Figure 1 to carry out warming operation is described;
Fig. 4 is the flow chart of the control of explanation control valve and cold-producing medium transfer valve.
Description of reference numerals
A absorption cooling and warming water machine 1 regenerator 2 condensers
3 evaporimeters, 4 absorbers, 5 heaters
6 condenser heat exchangers, 7 evaporator heat exchanger
8 absorber exchange devices, 9 upper machine bodies, 10 lower bodies
11 driving heat source, 12 supplying tubing, 13 backflow pipe arrangements
14 flow control valves, 15 cooling water pipes, 16 cold water pipe arrangements
17 first Temperature Detectors, 18 second Temperature Detectors
19 switches, 20 control device, 21,23 refrigerant pipes
The secondary refrigerant pipe of 21-1 bypass refrigerant pipe 21-2
22 refrigerated medium pumps, 24 loads (refrigeration/heating)
25 dope heat exchangers, 26 rare absorption liquid pump 27 rare absorption liquid pipe arrangements
28 dope pipe arrangements, 29 cooling towers, 30 cold warm water pumps
31 cooling water pumps, 32,33 warm water's pipe arrangements, 34 secondary thermals source
40 cold-producing medium grooves, 41 cold-producing medium transfer valves
The specific embodiment
Below, present invention will be described in detail with reference to the accompanying.
Fig. 1 is the key diagram of an embodiment of the integral body of explanation absorption cooling and warming water machine of the present invention.
Fig. 2 is the key diagram that the embodiment when using absorption cooling and warming water machine of the present invention shown in Figure 1 to carry out cooling operation is described.
Fig. 3 is the key diagram that the embodiment when using absorption cooling and warming water machine of the present invention shown in Figure 1 to carry out warming operation is described.
Identical among the parts of the Reference numeral indication that marks among Fig. 1 and Fig. 2 and Fig. 3.When the situation the when situation when using Fig. 2 to carry out cooling operation to making absorption cooling and warming water machine of the present invention describes and use Fig. 3 to carry out warming operation to making absorption cooling and warming water machine of the present invention describes, they are described.
(at first, illustrating that use absorption cooling and warming water machine A of the present invention carries out the situation of cooling operation)
Absorption cooling and warming water machine A of the present invention shown in Figure 2 is with regenerator 1, condenser 2, evaporimeter 3 and absorber 4 carry out pipe arrangement and connect and the circulating path of formation cold-producing medium and absorption liquid, can carry out following selection, promptly supply with driving heat source 11 to regenerator 1 via flow control valve 14, and, make from the cooling water circulation (by thick black line figure represent) of cooling tower 29 via cooling water pipe 15 to absorber 4 and condenser 2 supplies, on the other hand, supply with cold and hot (representing) and carry out cold and hot supplying operation to load (refrigeration) 24 circulations via the first refrigerating medium pipe (cold water pipe arrangement 16) from evaporimeter 3 by the thick black line the figure.
Promptly, switching is by triple valve A, first transfer valve that triple valve B constitutes and load 24 is switched to the first refrigerating medium pipe (cold water pipe arrangement 16) be connected, and, by triple valve C, the 3rd transfer valve that triple valve D and triple valve E constitute is switched and evaporimeter 3 is connected to load 24, the cold and hot circulation to load 24 via the first refrigerating medium pipe (cold water pipe arrangement 16) supplied with (being represented by the thick black line among the figure), on the other hand, second transfer valve that is made of triple valve F is switched and makes absorber 4 to cooling tower 29 connections, make from the cooling water circulation (by thick black line figure represent) of cooling tower 29 via cooling water pipe 15 to absorber 4 and condenser 2 supplies, control the aperture of flow control valve 14 according to the temperature that detects by first Temperature Detector 17, and carry out cold and hot supplying operation to load 24 supplies.
Among Fig. 2, Reference numeral A is an absorption cooling and warming water machine of the present invention, and cold-producing medium for example makes water (H 2O), absorption liquid (solution) uses lithium bromide (LiBr) solution.
In Fig. 2, Reference numeral 1 for example is with the regenerator, 2nd of the cooling water of boiler, engine (hereinafter referred to as driving heat source warm water) as driving heat source 11, condenser, the 3rd, and evaporimeter, the 4th, absorber, the 5th, the heater of regenerator 1, the 6th, condenser heat exchanger, the 7th, evaporator heat exchanger, the 8th, absorber exchange device, the 9th has been taken in the upper machine body, the 10th of regenerator 1 and condenser 2, has taken in the lower body of evaporimeter 3 and absorber 4.Reference numeral 12 is supplying tubing, the 13rd of 1 the heater 5 from driving heat source 11 to regenerator, and 11 the backflow pipe arrangement, the 14th from regenerator 1 to driving heat source is with the flow control valve that is connected of supplying tubing 12 midway.
Reference numeral 15 is to utilize cooling water pump 31 to supply with the cooling water pipe of cooling water via triple valve F from cooling tower 29, be provided with absorber exchange device 8 and condenser heat exchanger 6, first Temperature Detector 17 halfway, cooling water flows back to cooling tower 29 via triple valve B and is recycled.
Reference numeral 16 is cold water pipe arrangements, is provided with evaporator heat exchanger 7, first Temperature Detector 17, triple valve D, triple valve A, cold warm water pump 30, load (refrigeration load) 24, triple valve C, triple valve E midway at cold water pipe arrangement (the first refrigerating medium pipe) 16.
First Temperature Detector 17 is cold water pipe arrangement 16 Temperature Detectors midway, that detect cold water outlet temperature of being located at evaporator heat exchanger 7 downstreams.When cooling operation, use first Temperature Detector 17.
Reference numeral 18 is cooling water pipe 15 second Temperature Detectors midway, that detect the warm water outlet temperature of being located at condenser heat exchanger 6 downstreams.When cooling operation, do not use second Temperature Detector 18.
Reference numeral 19 is the switches that are used to switch from the signal of first Temperature Detector 17 or second Temperature Detector 18, and, Reference numeral 20 is following control device, its via switch 19 from first Temperature Detector 17 or second Temperature Detector, 18 input signals and export the control signal of the aperture of control valve 14.
By the driving heat source warm water of supplying with from driving heat source 11 of the aperture of control valve 14 decision, flow to the heater 5 of regenerator 1 by supplying tubing 12.In regenerator 1, the rare absorption liquid (being called rare absorption liquid) of concentration is heated, and separates cold-producing medium and evaporate from rare absorption liquid, thereby generate concentrated absorption solution (being called dope).
The refrigerant flow direction condenser 2 of evaporation carries out heat exchange and condensation liquefaction with the cooling water that flows in condenser heat exchanger 6, flow to evaporimeter 3 via refrigerant pipe 21.
Being provided with of refrigerant pipe 21 midway as the cold-producing medium groove 40 that stores the storing section of ormal weight cold-producing medium, bottom at cold-producing medium groove 40, be provided with secondary refrigerant pipe 21-2 from the bottom, and be provided with the bypass refrigerant pipe 21-1 that walks around cold-producing medium transfer valve 41 from the top of cold-producing medium groove 40, this pair refrigerant pipe 21-2 is provided with the cold-producing medium transfer valve 41 as output mechanism.
The capacity of cold-producing medium groove 40 is not particularly limited, if the refrigerant amount that uses among the absorption cooling and warming water machine A is made as 100 (capacity), then the capacity of cold-producing medium groove 40 is preferably 50～150, and more preferably 100.If less than 50, then capacity is very few and probably the concentration of the lithium bromide in rare absorption liquid or the dope can not be diluted to fully appropriate value, if surpass 150, then probably can cause device to become big and uneconomical.
First transfer valve that switching is made of triple valve A, triple valve B and load 24 is switched to and the first refrigerating medium pipe (cold water pipe arrangement 16) when being connected, open cold-producing medium transfer valve 41 by manually or automatic control as output mechanism, the cold-producing medium that stores cold-producing medium groove 40 in is flowed out and via secondary refrigerant pipe 21-2 to evaporimeter 3 conveyings.Carry to evaporimeter 3 by storing via secondary refrigerant pipe 21-2, thereby the absorption liquid concentration in the machine (concentration of the lithium bromide in the absorption liquid) can be gone up only low absorption liquid concentration as a whole and carry out cold and hot supplying operation at the cold-producing medium of cold-producing medium groove 40.
As previously mentioned, in cold and hot supplying operation, open cold-producing medium transfer valve 41, the cold-producing medium that stores as the cold-producing medium groove 40 of storing section is flowed out, carry out the running of low concentration that the absorption liquid concentration in the machine is gone up as a whole as output mechanism.This be for, in cold and hot supplying operation, guarantee refrigerant amount by evaporimeter 3 evaporation, in addition, the position beyond regenerator 1 is because absorption liquid is exposed in the low temperature environment, so in regenerator 1, the concentration that makes evaporation separate the absorption liquid behind the cold-producing medium does not too improve.
In addition, for example when warm supplying operation described later etc., keep closing the state of cold-producing medium transfer valve 41, promptly cold-producing medium is being stored under the state of cold-producing medium groove 40, can be via bypass refrigerant pipe 21-1 to evaporimeter 3 refrigerant conveyings.
And, also can constitute, aperture by control cold-producing medium transfer valve 41 is opened cold-producing medium transfer valve 41, thereby will store in the requirement of the cold-producing medium of cold-producing medium groove 40 via secondary refrigerant pipe 21-2 and to carry to evaporimeter 3, afterwards under the state that cold-producing medium is stored in cold-producing medium groove 40, via bypass refrigerant pipe 21-1 to evaporimeter 3 refrigerant conveyings.If will store in the requirement of the cold-producing medium of cold-producing medium groove 40 via secondary refrigerant pipe 21-2 and to carry, then the concentration of the lithium bromide in rare absorption liquid or the dope can be made as suitable concentration to evaporimeter 3.That is, can easily carry out the control concentration of the lithium bromide in rare absorption liquid or the dope is thinning or that thicken.
The cold-producing medium that flows to evaporimeter 3 and accumulate utilizes refrigerated medium pump 22 to scatter on evaporator heat exchanger 7 via refrigerant piping 23, then, refrigerating fluid carries out heat exchange and evaporation with the secondary heat source water that flows in evaporator heat exchanger 7, cold water be cooled because of heat of gasification and utilize cold warm water pump 30 via triple valve D, A to cold water pipe arrangement (the first refrigerating medium pipe) 16 loads that are connected (refrigeration load) 24 supply with freeze after, circulate via triple valve C, E.
Then, be input in the control device 20 via switch 19, also suitably carry out the aperture control of control valve 14 from control device 20 output signals by first Temperature Detector, 17 detected signals.
In addition, the refrigerant flow direction absorber 4 that evaporates at evaporimeter 3.On the other hand, the dope in that regenerator 1 generates after dope heat exchanger 25 and the rare absorption liquid that utilizes rare absorption liquid pump 26 to send here via rare absorption liquid pipe arrangement 27 from absorber 4 carry out heat exchange, spreads to absorber exchange device 8 via dope pipe arrangement 28.The cold-producing medium that flows to absorber 4 is spread to the dope absorption of absorber exchange device 8 and is become rare absorption liquid.
Absorbed rare absorption liquid of cold-producing medium at absorber 4, utilized rare absorption liquid pump 26 dope heat exchanger 5, to carry out heat exchange with dope via rare absorption liquid pipe arrangement 27 as previously mentioned and carry to regenerator 1 from absorber 4.
The rare absorption liquid that flow into regenerator 1 utilizes heater 5 to be heated, and cold-producing medium separates and evaporation, and as previously mentioned, dope flows to absorber 4 and scattered.
As mentioned above, if carry out the running of absorption cooling and warming water machine A, then at pipe arrangement in the evaporator heat exchanger 7 of evaporimeter 3 inside, the cold water that is cooled because of the heat of gasification of cold-producing medium, utilize the running of cold warm water pump 30, supply to load (refrigeration load) 24 via cold water pipe arrangement (the first refrigerating medium pipe) 16 circulation, therefore, use absorption cooling and warming water machine A of the present invention can carry out cooling operation in refrigeration season in summer etc.
Triple valve among Fig. 2 is expressed as follows situation, and promptly the direction of being represented by black is closed, and is opened by the direction that white is represented.Triple valve constitutes according to from the signal of control device 20, is transferred to open and close signal and suitably open and close.
In the Temperature Detector of Fig. 2, represent not use by the Temperature Detector that black circles is represented, represent to be used by the Temperature Detector that white circle is represented.
(then, illustrating that use absorption cooling and warming water machine A of the present invention carries out the situation of warming operation)
Absorption cooling and warming water machine A of the present invention shown in Figure 3 is selected as carrying out warm supplying operation, this warm supplying operation is, driving heat source 11 is supplied with to regenerator 1 as main heat source and via flow control valve 14, supply with secondary thermal source 34 (representing) to evaporimeter 3 by the thick black line among the figure, and, do not use cooling tower 29, the cooling water pipe 15 that will use when cooling operation uses as the second refrigerating medium pipe, make at absorber 4 and condenser 2 to be heated and mobile above-mentioned cooling water, circulate (representing) to load (heating) 24 by the thick black line among the figure via the second refrigerating medium pipe (cooling water pipe 15).
Promptly, first transfer valve that switching is made of triple valve A and triple valve B and load (heating) 24 is switched to the second refrigerating medium pipe (cooling water pipe 15) be connected, absorber 4 and condenser 2 connect to load (heating) 24, and, by triple valve C, the 3rd transfer valve that triple valve D and triple valve E constitute is switched, evaporimeter 3 is via the warm water's pipe arrangement 32 with triple valve E and triple valve D, 33 to not shown underground heat, hot spring, secondary thermal source 34 such as boiler connects, be heated and mobile above-mentioned cooling water at absorber 4 and condenser 2, supply with and after heating, to load (heating) 24 via the second refrigerating medium pipe (cooling water pipe 15) via triple valve C, triple valve F circulates (being represented by the thick black line among the figure).
Warm water from secondary thermals source such as not shown underground heat, hot spring, boilers, supply to the cold water pipe arrangement 16 that uses when the cooling operation from warm water's pipe arrangement 32 via triple valve E, evaporator heat exchanger 7 via evaporimeter 3, discharge from warm water's pipe arrangement 33 by triple valve D, thereby make its circulation and utilization again.
First transfer valve that switching is made of triple valve A, triple valve B and load 24 is switched to and the second refrigerating medium pipe (cooling water pipe 15) when being connected, by manually or automatically controlling the cold-producing medium transfer valve 41 of closing as output mechanism, under the state that cold-producing medium is stored in cold-producing medium groove 40, cold-producing medium is carried to evaporimeter 3 via bypass refrigerant pipe 21-1.
Under the state that cold-producing medium is stored in cold-producing medium groove 40, by cold-producing medium being carried to evaporimeter 3, thereby the absorption liquid concentration in the machine (concentration of the lithium bromide in the absorption liquid) can be gone up only high absorption liquid concentration as a whole and carry out warm supplying operation via bypass refrigerant pipe 21-1.
As previously mentioned, in warm supplying operation, close cold-producing medium transfer valve 41 as output mechanism, cold-producing medium is being stored under as the state in the cold-producing medium groove 40 of storing section, by cold-producing medium being carried to evaporimeter 3, thereby carry out the running of high concentration that the absorption liquid concentration in the machine is gone up as a whole via bypass refrigerant pipe 21-1.
This be because, in warm supplying operation, the temperature of (and in absorber 4) rises because of secondary thermal source 34 in the evaporimeter 3, even if in the absorption liquid that improves concentration, the danger that the LiBr crystallization is separated out is also little, in addition, by improving the concentration of absorption liquid, can improve the cold-producing medium absorbability of absorption liquid and improve running efficiency.
And, also can constitute, aperture by control cold-producing medium transfer valve 41 is opened cold-producing medium transfer valve 41, thereby will store in the requirement of the cold-producing medium of cold-producing medium groove 40 via secondary refrigerant pipe 21-2 and to carry to evaporimeter 3, afterwards under the state that cold-producing medium is stored in cold-producing medium groove 40, via bypass refrigerant pipe 21-1 to evaporimeter 3 refrigerant conveyings.If will store in the requirement of the cold-producing medium of cold-producing medium groove 40 via secondary refrigerant pipe 21-2 and to carry, then the concentration of the lithium bromide in rare absorption liquid or the dope can be made as suitable concentration to evaporimeter 3.That is, can carry out following control easily: the concentration of the lithium bromide in rare absorption liquid or the dope is thinning or thicken.
Then, second Temperature Detector, the 18 detected signals that the second refrigerating medium pipe (cooling water pipe 15) of utilization in condenser heat exchanger 6 downstreams is provided with midway, be imported in the control device 20 via switch 19, and suitably carry out the aperture control of flow control valve 14 from control device 20 output signals.
The internal circulating load of cold-producing medium, driving heat source warm water, rare absorption liquid, dope etc., the lithium bromide concentration in rare absorption liquid, the lithium bromide concentration in the dope, temperature etc., correspondingly suitably controlled with warming operation.About the circulating path of cold-producing medium, driving heat source warm water, rare absorption liquid, dope etc., the situation of the situation during warming operation during also with above-mentioned cooling operation is identical.
Triple valve among Fig. 3 is expressed as follows situation, and promptly the direction of being represented by black is closed, and is opened by the direction that white is represented.Triple valve constitutes according to from the signal of control device 20, is transferred to open and close signal and suitably open and close.
In the Temperature Detector of Fig. 3, represent not use by the Temperature Detector that black circles is represented, represent to be used by the Temperature Detector that white circle is represented.
As mentioned above, if carry out the running of absorption cooling and warming water machine A, then under following state, promptly keep cold-producing medium stored in the state of cold-producing medium groove 40 and via bypass refrigerant pipe 21-1 cold-producing medium is carried and under the state that the concentration of the lithium bromide in the absorption liquid is thickened to evaporimeter 3, heat exchanger 8 at absorber 4 and condenser 2, heated warm water in 6, can utilize the running of cold warm water pump 30, supply with to load (heating load) 24 circulations via the second refrigerating medium pipe (cooling water pipe 15), thus, use heating season that absorption cooling and warming water machine A of the present invention can be in the winter time etc. effectively to carry out warming operation.
Reference numeral 20 is control device of being located at the absorption cooling and warming water machine A with aforesaid holding function, have PC, storing mechanism etc. and constitute, this control device has volume control function, and have by the running of cold warm water pump 30 being carried out inverter type and control (イ Application バ- system is driven), thereby the internal circulating load of cold warm water is made as the control function of optimal liquid internal circulating load.This volume control function is for reading in the temperature information by first Temperature Detector 17 or second Temperature Detector, 18 detected cold warm water via switch 19, the aperture of control control valve 14 and control are to the input heat of regenerator 1, so that the temperature maintenance of this cold warm water is at the design temperature of regulation.
In addition, cold warm water pump 30 also can be controlled by the not shown control panel that is connected with absorption cooling and warming water machine A of the present invention.
Fig. 4 is the flow chart of the control of explanation flow control valve and cold-producing medium transfer valve.
When the warming operation of the absorption cooling and warming water machine A of the present invention that constitutes as mentioned above, be input to control device 20 by second Temperature Detector, 18 detected signals via switch 19, suitably carry out the aperture control of flow control valve 14 from control device 20 output signals, and, from control device 20 output signals, under keeping with cold-producing medium transfer valve 41 closing state, promptly, cold-producing medium is stored under the state of cold-producing medium groove 40, via bypass refrigerant pipe 21-1 cold-producing medium is carried to evaporimeter 3, the concentration of the lithium bromide in the dope is thickened and turns round, therefore, can carry out warming operation expeditiously.
When carrying out the cooling operation of absorption cooling and warming water machine A of the present invention, be input to control device 20 by first Temperature Detector, 17 detected signals via switch 19, suitably carry out the aperture control of flow control valve 14 from control device 20 output signals, and, from control device 20 output signals and open cold-producing medium transfer valve 41, promptly will store at the cold-producing medium of cold-producing medium groove 40 and carry to evaporimeter 3 via secondary refrigerant pipe 21-2, the concentration of the lithium bromide in the dope is thinning and turn round, therefore, can carry out cooling operation expeditiously.
In addition, the explanation of above-mentioned embodiment only is used to illustrate the present invention, and the invention put down in writing of the scope of non-limiting claim protection, or reduces the scope.In addition, each several part structure of the present invention is not limited to above-mentioned embodiment, can carry out various distortion in the technical scope that the claim protection is put down in writing.
For example, in the present embodiment, the situation of whole use triple valve A～F has been described, but has been not limited to this, also can make it oppositely open and close (Ni Open Closed two two-port valves (switch valve) combination), thus constitute each triple valve A～F.Thus, can be lowered into original enforcement the present invention.
Industrial applicibility
Absorption cooling and warming water machine of the present invention is if supply to regenerator with thermal source and cooling water is supplied to Absorber and condenser then can carry out the cold and hot supplying operation from evaporimeter to load, if with thermal source (main heat source) supplies to regenerator and secondary thermal source supplied to evaporimeter, then carries out as absorption type heat The running of pump, by making the cooling water that uses when the above-mentioned cold and hot supplying operation to above-mentioned load cycle, Thereby can carry out warm supplying operation. Absorption cooling and warming water machine of the present invention simple in structure, by One table apparatus can easily carry out the concentration of the lithium bromide in rare absorption liquid or the dope is thinning or change Dense control can be carried out cooling operation in the refrigeration in summer season expeditiously, and in the winter time Heating season can easily switch to heating and carry out expeditiously warming operation, because tool of the present invention Above-mentioned significant effect is arranged, so value industrially is very big.

Claims (3)

1. absorption cooling and warming water machine, with regenerator, condenser, evaporimeter and absorber carry out pipe arrangement and connect and the circulating path of formation cold-producing medium and absorption liquid, this absorption cooling and warming water machine carries out cold and hot supplying operation and warm supplying operation, this cold and hot supplying operation is for to supply with driving heat source via flow control valve to regenerator, and, make from the cooling water circulation of cooling tower to absorber and condenser supply, and supply with cold and hot from described evaporimeter to load via the first refrigerating medium pipe, this warm supplying operation is that described driving heat source is supplied with to described regenerator as main heat source and via described flow control valve, supply with secondary thermal source to described evaporimeter, and make the described cooling water that flows at absorber and condenser to described load cycle via the second refrigerating medium pipe, this absorption cooling and warming water machine is characterised in that
Outlet at evaporimeter is provided with first Temperature Detector, outlet at condenser is provided with second Temperature Detector, and transfer valve is set, load switched to the first refrigerating medium pipe or the second refrigerating medium Guan Zeyi ground be connected, when load is switched to when being connected with the first refrigerating medium pipe, control the aperture of flow control valve according to the temperature that detects by first Temperature Detector, when load is switched to when being connected with the second refrigerating medium pipe, control the aperture of flow control valve according to the temperature that detects by second Temperature Detector, and, at the refrigerant pipe that connects to evaporimeter from condenser midway, the output mechanism that setting stores the storing section of cold-producing medium and cold-producing medium is flowed out to evaporimeter from this storing section, described load are switched to when the first refrigerating medium pipe or the connection of the second refrigerating medium pipe this output mechanism are opened and closed.
2. absorption cooling and warming water machine as claimed in claim 1, it is characterized in that, when load is switched to when being connected with the first refrigerating medium pipe, opening output mechanism so that cold-producing medium does not store under the state in storing section turns round, when load is switched to when being connected with the second refrigerating medium pipe, closing output mechanism so that cold-producing medium stores under the state of storing section turns round.
3. absorption cooling and warming water machine as claimed in claim 1 or 2 is characterized in that, described storing section has cold-producing medium at an upper portion thereof always can be from condenser to the mobile refrigerant pipe of evaporimeter, and described output mechanism is located between the bottom and evaporimeter of storing section.
CN2009101298375A 2008-03-26 2009-03-26 Absorption type water cooling and warming machine Expired - Fee Related CN101545696B (en)

Applications Claiming Priority (2)

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JP081287/08 2008-03-26
JP2008081287A JP2009236368A (en) 2008-03-26 2008-03-26 Absorption chiller/heater

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CN101545696B CN101545696B (en) 2011-02-09

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111550946A (en) * 2020-04-28 2020-08-18 松下制冷（大连）有限公司 Absorption type water chilling unit for preparing low-temperature cold water

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KR101076923B1 (en) * 2010-03-15 2011-10-26 엘지전자 주식회사 An absorption type chiller-heater respondable to the heating load conditions
CN102313415B (en) * 2011-10-08 2014-01-29 深圳市唯克瑞投资咨询有限公司 Control system of vehicular refrigerating equipment and method thereof
CN104896796B (en) * 2015-06-18 2017-04-26 河南中烟工业有限责任公司 Energy-saving type cooling and heating integrated system

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JP3920619B2 (en) 2001-10-19 2007-05-30 株式会社日立製作所 Absorption chiller / heater and control method thereof
JP4166037B2 (en) 2002-05-24 2008-10-15 三洋電機株式会社 Absorption chiller / heater
JP2004245434A (en) 2003-02-10 2004-09-02 Toyo Radiator Co Ltd Absorption water chiller/heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550946A (en) * 2020-04-28 2020-08-18 松下制冷（大连）有限公司 Absorption type water chilling unit for preparing low-temperature cold water

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