CN104567052A - Refrigeration-cycle equipment - Google Patents

Refrigeration-cycle equipment Download PDF

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Publication number
CN104567052A
CN104567052A CN201410567535.7A CN201410567535A CN104567052A CN 104567052 A CN104567052 A CN 104567052A CN 201410567535 A CN201410567535 A CN 201410567535A CN 104567052 A CN104567052 A CN 104567052A
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CN
China
Prior art keywords
refrigerant liquid
evaporimeter
condenser
separating mechanism
path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410567535.7A
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Chinese (zh)
Inventor
松浦尧宏
田村朋一郎
丸桥伊织
河野文纪
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of CN104567052A publication Critical patent/CN104567052A/en
Pending legal-status Critical Current

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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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • 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
    • F25B49/02—Arrangement or mounting of control or safety devices for compression 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B2400/23—Separators
    • 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
    • F25B2500/27—Problems to be solved characterised by the stop of the refrigeration cycle
    • 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
    • F25B2500/31—Low ambient temperatures

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

There is provided refrigeration-cycle equipment in which a mixture of a refrigerant component and an additive is employed as a refrigerant. The refrigeration-cycle equipment includes an evaporator, a condenser, a vapor passage, and a return passage. The return passage guides refrigerant liquid from the condenser to the evaporator. The return passage is provided with a separating mechanism that separates the additive from the refrigerant component.

Description

Refrigerating circulatory device
Technical field
The disclosure relates to refrigerating circulatory device.
Background technology
In refrigerating circulatory device in the past, widely use the halogenated hydrocarbons such as freon, freon substitute as cold-producing medium.But, these cold-producing mediums have damage the ozone layer, the problem such as global greenhouse effect.Therefore, the refrigerating circulatory device of the water be used as the minimum cold-producing medium of earth environment load is proposed.
In patent document 1, as such refrigerating circulatory device, disclose the conditioner that refrigeration is special.The conditioner of patent document 1 can based on the minimizing using natural refrigerant to realize carrying capacity of environment.In addition, the latent heat amount of water is larger than cold-producing medium in the past, and therefore, the conditioner of patent document 1 can play the ability equal with conditioner in the past with low mass flow.That is, in the purposes of freezing special conditioner, water is used can to realize high COP (Coefficient of Performance, the coefficient of performance) as the refrigerating circulatory device of cold-producing medium.
[prior art document]
[patent document]
[patent document 1] Japanese Unexamined Patent Publication 2008-122012 publication (Fig. 1)
Summary of the invention
But, following situation may be there is in the refrigerating circulatory device of conventional art: evaporimeter and condenser respective in, additive is not adjusted to preferred value for the smooth running for refrigerating circulatory device relative to the ratio of cold-producing medium.
In view of the foregoing, the disclosure provides a kind of technology, for additive is adjusted to the preferred value of smooth running for refrigerating circulatory device relative to the ratio of cold-producing medium.
That is, refrigerating circulatory device of the present disclosure,
Be use the mixture of refrigerant composition and additive as the refrigerating circulatory device of cold-producing medium, possess:
Evaporimeter, its store refrigerant liquid, and make described refrigerant liquid evaporate and generate refrigerant vapour;
Condenser, it makes described refrigerant vapour condensation and generates refrigerant liquid;
Compressor, it is arranged between described evaporimeter and described condenser, compresses described refrigerant vapour;
Steam path, described evaporimeter and described condenser link via described compressor by it, guide described refrigerant vapour from described evaporimeter to described condenser;
Return path, it guides described refrigerant liquid from described condenser to described evaporimeter; And
Separating mechanism, it is arranged on described return path, and described additive is separated from the described refrigerant liquid supplied to described evaporimeter from described condenser.
According to the disclosure, evaporimeter and condenser respective in, can by additive preferred value for the smooth running that the ratio of cold-producing medium is adjusted to for refrigerating circulatory device.
Accompanying drawing explanation
Fig. 1 is the structure chart of the refrigerating circulatory device of the 1st embodiment.
Fig. 2 is the structure chart of the refrigerating circulatory device of the 2nd embodiment.
Fig. 3 A is the structure chart of the refrigerating circulatory device of the 3rd embodiment.
Fig. 3 B is the structure chart of the refrigerating circulatory device of the variation of the 3rd embodiment.
Fig. 4 is the structure chart of the refrigerating circulatory device of the 4th embodiment.
Fig. 5 is the structure chart of the refrigerating circulatory device of the 5th embodiment.
Fig. 6 is the structure chart of the refrigerating circulatory device of the 6th embodiment.
Fig. 7 is the structure chart of the refrigerating circulatory device of the 7th embodiment.
Fig. 8 is the structure chart of the refrigerating circulatory device of the 8th embodiment.
Fig. 9 is the structure chart of the refrigerating circulatory device of the 9th embodiment.
Figure 10 A is the structure chart of the refrigerating circulatory device of the 10th embodiment.
Figure 10 B is the structure chart of the refrigerating circulatory device of the variation of the 10th embodiment.
Figure 11 A is the structure chart of the refrigerating circulatory device of the 11st embodiment.
Figure 11 B is the structure chart of the refrigerating circulatory device of the variation of the 11st embodiment.
Figure 12 A is the structure chart of the refrigerating circulatory device of the 12nd embodiment.
Figure 12 B is the structure chart of the refrigerating circulatory device of the variation of the 12nd embodiment.
Figure 13 is the structure chart of the refrigerating circulatory device of the 13rd embodiment.
Figure 14 is the structure chart of the refrigerating circulatory device of the 14th embodiment.
Figure 15 is the structure chart of the refrigerating circulatory device of the 15th embodiment.
Figure 16 A is single saturated vapor pressure curve C when representing that the saturated vapour pressure of the refrigerant liquid being stored in evaporimeter is consistent with the saturated vapour pressure of the refrigerant liquid being stored in condenser rEFchart.
Figure 16 B is the saturated vapor pressure curve C of saturated vapor pressure ratio under the specified temp representing the refrigerant liquid the being stored in condenser saturated vapor be stored under the specified temp of the refrigerant liquid of evaporimeter when forcing down cONand saturated vapor pressure curve C eVAchart.
Figure 17 is the structure chart of the refrigerating circulatory device of the 16th embodiment.
Description of reference numerals
2 steam paths
3 return paths
4,9 adjustment paths
6 separating mechanisms
10 heat absorption circulation roads
11 heat radiation circulation roads
12,14,51,52 pumps
13 the 1st heat exchangers
15 the 2nd heat exchangers
21 evaporimeters
22 compressors
23 condensers
The upstream portion of 31 return paths
The downstream part (the 1st downstream part) of 32 return paths
The downstream part (the 2nd downstream part) of 33 return paths
34,44,95 bypass path
The upstream portion in 41 adjustment paths
The downstream part (the 1st downstream part) in 42 adjustment paths
The downstream part (the 2nd downstream part) in 43 adjustment paths
64,65,66 triple valves
81,85,86,97 flow rate adjusting mechanisms
100,102,104,106,108,110,112,114,116,118,120,122,124,126,128 refrigerating circulatory devices
Detailed description of the invention
(opinion as basis of the present disclosure)
The cold-producing medium of refrigerating circulatory device is often containing the additive beyond refrigerant composition.Such as, when refrigerating circulatory device described in patent document 1, can consider to use the mixture of water (refrigerant composition) and the additive freezed for anti-sealing as cold-producing medium.But there is the situation large with the saturated vapour pressure difference of refrigerant composition in the saturated vapour pressure of the solution of such additive.Due to the difference of saturated vapour pressure, in the specific part (such as, evaporimeter and condenser) of refrigerating circulatory device, additive is likely gradually varied to relative to the ratio of cold-producing medium and is not preferably worth for operating smoothly.
If use water as cold-producing medium as the refrigerating circulatory device (conditioner) of patent document 1, then refrigerant freezeout under the operating condition under needing the temperature making cold-producing medium to be reduced to freezing point.Therefore, warming operation cannot be carried out when atmospheric temperature is low.In addition, under the condition under the temperature of cooling object is below the freezing point, refrigerating circulatory device cannot be used as refrigeration machine.
If use the mixture of non-freezing solution and water as cold-producing medium, then can operate at low temperatures.But, as the ethylene glycol solution of general non-freezing solution and liquor kalii acetici, there is the saturated vapour pressure lower than water.Therefore, if use the mixture of non-freezing solution and water as cold-producing medium, then water preferential evaporation in evaporimeter, water occupies the major part of refrigerant vapour.Its result, along with the process of the duration of runs, the concentration (precisely the concentration of ethylene glycol or the concentration of potassium acetate) being stored in the non-freezing solution in the refrigerant liquid of evaporimeter rises, and the concentration being stored in the non-freezing solution in the refrigerant liquid of condenser reduces.If shut down in such a state, then the refrigerant liquid in condenser can freeze, and the part such as condenser, pipe arrangement likely damages.
As the method for this problem of reply, following method can be considered.Namely, when the concentration of the non-freezing solution in evaporimeter rises or the concentration of non-freezing solution in condenser reduces, temporarily shut down (such as warming operation), the part of the part being stored in the refrigerant liquid of evaporimeter with the refrigerant liquid being stored in condenser mutually exchanged.Thereby, it is possible to make the concentration of the non-freezing solution be stored in the refrigerant liquid of evaporimeter and be stored in the non-freezing solution in the refrigerant liquid of condenser concentration initialize.But the method produces a large amount of heat loss due to the exchange of refrigerant liquid.After exchange refrigerant liquid, need long-time to again operating, therefore system effectiveness reduces.
Based on above-mentioned opinion, the present inventor contemplates the invention of each scheme of following explanation.
The refrigerating circulatory device of the 1st scheme of the present disclosure,
Be use the mixture of refrigerant composition and additive as the refrigerating circulatory device of cold-producing medium, possess:
Evaporimeter, its store refrigerant liquid, and make described refrigerant liquid evaporate and generate refrigerant vapour;
Condenser, it makes described refrigerant vapour condensation and generates refrigerant liquid;
Compressor, it is arranged between described evaporimeter and described condenser, compresses described refrigerant vapour;
Steam path, described evaporimeter and described condenser link via described compressor by it, guide described refrigerant vapour from described evaporimeter to described condenser;
Return path, it guides described refrigerant liquid from described condenser to described evaporimeter; And
Separating mechanism, it is arranged on described return path, and described additive is separated from the described refrigerant liquid supplied to described evaporimeter from described condenser.
According to the 1st scheme, return path is provided with separating mechanism, in separating mechanism, additive is separated from refrigerant liquid.The refrigerant liquid that the concentration of additive reduces is supplied to evaporimeter by from condenser.Its result, evaporimeter and condenser respective in, can by additive preferred value for the smooth running that the ratio of cold-producing medium (refrigerant liquid) is adjusted to for refrigerating circulatory device.Specifically, the dilution of the additive in the concentrated of the additive in evaporimeter and condenser can be suppressed.In addition, refrigerating circulatory device continuous running near rated value or rated value can be made, while the concentration of adjustment evaporimeter and condenser additive separately.Like this, the refrigerating circulatory device of the 1st scheme can perform running stable for a long time, and can play excellent system effectiveness.
In addition, the amount of the additive supplied from evaporimeter to condenser through steam path is likely greater than the amount of the additive supplied from condenser to evaporimeter through return path.In this case, the part likely needing the refrigerant liquid by being stored in evaporimeter exchanges with a part for the refrigerant liquid being stored in condenser.But, by separating mechanism, can suppressant additive from condenser Returning evaporimeter, so with do not arrange the situation of separating mechanism at return path compared with, the exchange of refrigerant liquid can not be carried out and the time of continuous running extends effectively.Therefore, according to the 1st scheme, system effectiveness can be improved effectively.
In the 2nd scheme, such as, the described separating mechanism of the refrigerating circulatory device of the 1st scheme is the filter of full dose filtering scheme.The filter of full dose filtering scheme has the excellent ability from refrigerant liquid separate addn.
In the 3rd scheme, such as, the refrigerating circulatory device of the 1st or the 2nd scheme also possesses flow rate adjusting mechanism, and described flow rate adjusting mechanism is arranged on described return path.By flow rate adjusting mechanism, the flow of the refrigerant liquid in return path can be adjusted as required.
In the 4th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 3rd scheme also possesses: bypass path, and it walks around described separating mechanism, guides described refrigerant liquid from described condenser to described evaporimeter; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described condenser to described evaporimeter via described separating mechanism and the amount of described refrigerant liquid that supplies from described condenser to described evaporimeter via described bypass path.Such as, by bypass path and flow rate adjusting mechanism, when additive excessively concentrates within the condenser, the high refrigerant liquid of the concentration ratio permeate of additive can be supplied to evaporimeter.
In the 5th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 4th scheme also possesses adjustment path, and described adjustment path has valve, guides described refrigerant liquid from described evaporimeter to described condenser.Even if the flow of the refrigerant liquid in return path and the concentration of additive different from the flow of the refrigerant vapour in steam path and the concentration of additive, if Use Adjustment path, refrigerating circulatory device also can be made to operate continually and steadily.
In the 6th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 5th scheme also possesses pump, and described pump is arranged on described return path.Pump provides and makes the driving pressure of refrigerant liquid required for return path flowing.
In the 7th scheme, such as, the described separating mechanism of the refrigerating circulatory device of the 1st scheme is the filter of cross-flow scheme, described return path has: (a1) upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described condenser to described separating mechanism; (a2) the 1st downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described evaporimeter; And (a3) the 2nd downstream part, its described refrigerant liquid guiding the concentration of described additive to increase from described separating mechanism to described condenser.The filter of cross-current flow is compared with the filter of full dose filter type, and filter house is difficult to block, the performance that can play stably for a long time and high reliability.
In the 8th scheme, such as, the refrigerating circulatory device of the 7th scheme also possesses flow rate adjusting mechanism, and described flow rate adjusting mechanism is arranged on described return path.By flow rate adjusting mechanism, the flow of the refrigerant liquid in return path can be adjusted as required.
In the 9th scheme, such as, the refrigerating circulatory device of the 7th or the 8th scheme also possesses: bypass path, and it walks around described separating mechanism, guides described refrigerant liquid from described condenser to described evaporimeter; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described condenser to described evaporimeter via described separating mechanism and the amount of described refrigerant liquid that supplies from described condenser to described evaporimeter via described bypass path.According to the 9th scheme, directly refrigerant liquid can be supplied from condenser to evaporimeter.
In the 10th scheme, such as, the refrigerating circulatory device of the either a program of the 7th ~ 9th scheme also possesses adjustment path, and described adjustment path has valve, guides described refrigerant liquid from described evaporimeter to described condenser.By adjustment path, the revenue and expenditure relevant to the movement of refrigerant composition and the revenue and expenditure relevant with the movement of additive can be made close to zero.
In the 11st scheme, such as, the refrigerating circulatory device of the 2nd scheme also possesses adjustment path, described adjustment path guides described refrigerant liquid from described evaporimeter to described condenser via described separating mechanism, described return path has: upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described condenser to described separating mechanism; And downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described evaporimeter, described adjustment path has: upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described evaporimeter to described separating mechanism; And downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described condenser, described refrigerating circulatory device also possesses: the 1st triple valve, and the side selected from the described upstream portion of described return path and the described upstream portion in described adjustment path is optionally connected to the entrance of described separating mechanism by it; And the 2nd triple valve, the side selected from the described downstream part of described return path and the described downstream part in described adjustment path is optionally connected to the outlet of described separating mechanism by it.According to the 11st scheme, refrigerant liquid can not only be made to move to evaporimeter from condenser, refrigerant liquid can also be made to move to condenser from evaporimeter.
In the 12nd scheme, such as, the refrigerating circulatory device of the 11st scheme also possesses: bypass path, and it walks around described separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.According to the 12nd scheme, the refrigerant liquid of separated mechanism process can be supplied from evaporimeter to condenser via bypass path.
In the 13rd scheme, such as, the refrigerating circulatory device of the 7th scheme also possesses adjustment path, described adjustment path guides described refrigerant liquid from described evaporimeter to described condenser via described separating mechanism, described adjustment path has: (b1) upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described evaporimeter to described separating mechanism; (b2) the 1st downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described condenser; And (b3) the 2nd downstream part, its described refrigerant liquid guiding the concentration of described additive to increase from described separating mechanism to described evaporimeter, described refrigerating circulatory device also possesses: (c1) the 1st triple valve, and the side selected from the described upstream portion of described return path and the described upstream portion in described adjustment path is optionally connected to the entrance of described separating mechanism by it; (c2) the 2nd triple valve, the side selected from described 1st downstream part of described return path and described 1st downstream part in described adjustment path is optionally connected to the permeate outlet of described separating mechanism by it; And (c3) the 3rd triple valve, the side selected from described 2nd downstream part of described return path and described 2nd downstream part in described adjustment path is optionally connected to the concentrated solution outlet of described separating mechanism by it.According to the 13rd scheme, refrigerant liquid can not only be made to move to evaporimeter from condenser, refrigerant liquid can also be made to move to condenser from evaporimeter.
In the 14th scheme, such as, the refrigerating circulatory device of the 13rd scheme also possesses: bypass path, and it walks around described separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.According to the 14th scheme, can supply via bypass path the refrigerant liquid not having separated mechanism to process from evaporimeter to condenser.
In the 15th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 6th scheme also possesses: adjustment path, and it guides described refrigerant liquid from described evaporimeter to described condenser; And the 2nd separating mechanism, it is arranged on described adjustment path, and described additive is separated from the described refrigerant liquid supplied to described condenser from described evaporimeter, and described 2nd separating mechanism is the filter of full dose filter type.Can through adjustment path, the refrigerant liquid that the concentration supplying additive from evaporimeter to condenser reduces.
In the 16th scheme, such as, the refrigerating circulatory device of the 15th scheme also possesses flow rate adjusting mechanism, and described flow rate adjusting mechanism is arranged on described adjustment path.By flow rate adjusting mechanism, the flow of the refrigerant liquid in adjustment path can be carried out as required.
In the 17th scheme, such as, the refrigerating circulatory device of the 15th or the 16th scheme also possesses: bypass path, and it walks around described 2nd separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described 2nd separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.According to the 17th scheme, can via bypass path, from evaporimeter to condenser, supply is not by the refrigerant liquid of the 2nd separating mechanism process.
In the 18th scheme, such as, the refrigerating circulatory device of the either a program of the 7th ~ 9th scheme also possesses: adjustment path, and it guides described refrigerant liquid from described evaporimeter to described condenser; And the 2nd separating mechanism, it is arranged on described adjustment path, described additive is separated from the described refrigerant liquid supplied to described condenser from described evaporimeter, described 2nd separating mechanism is the filter of cross-current flow, described adjustment path has: (d1) upstream portion, and it guides the described refrigerant liquid that will process described 2nd separating mechanism from described evaporimeter to described 2nd separating mechanism; (d2) the 1st downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce to described condenser from described 2nd separating mechanism; And (d3) the 2nd downstream part, its described refrigerant liquid guiding the concentration of described additive to increase to described evaporimeter from described 2nd separating mechanism.According to the 18th scheme, can by the exchange of permeate, the revenue and expenditure of the amount of movement of the material between adjustment evaporimeter and condenser.
In the 19th scheme, such as, the refrigerating circulatory device of the 18th scheme also possesses flow rate adjusting mechanism, and described flow rate adjusting mechanism is arranged on described adjustment path.According to flow rate adjusting mechanism, the flow of the refrigerant liquid in adjustment path can be carried out as required.
In the 20th scheme, such as, the refrigerating circulatory device of the 18th or the 19th scheme also possesses: bypass path, and it walks around described 2nd separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described 2nd separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.According to the 20th scheme, can via bypass path, from evaporimeter to condenser, supply is not by the refrigerant liquid of the 2nd separating mechanism process.
In the 21st scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 20th scheme also possesses heat absorption circulation road, and described heat absorption circulation road has the 1st heat exchanger, and thermal medium is circulated between described evaporimeter and described 1st heat exchanger.By the effect on circulation road of absorbing heat, can effectively heat the refrigerant liquid being stored in evaporimeter.
In the 22nd scheme, such as, the described thermal medium circulated in described heat absorption circulation road of the refrigerating circulatory device of the 21st scheme is the described refrigerant liquid being stored in described evaporimeter.According to the 22nd scheme, with make other thermal mediums absorb heat follow looped cycle situation compared with, evaporimeter and heat absorption circulation road simple structure.
In the 23rd scheme, such as, 5th, the refrigerating circulatory device of the either a program of the 10th, the 11st, the 13rd, the 15th and the 18th scheme also possesses heat absorption circulation road, described heat absorption circulation road has the 1st heat exchanger and is configured in the pump between the outlet of described evaporimeter and the entrance of described 1st heat exchanger, described heat absorption circulation road makes thermal medium circulate between described evaporimeter and described 1st heat exchanger, described adjustment path between the outlet and the entrance of described 1st heat exchanger of described pump from described heat absorption circulation road branch.According to the 23rd scheme, the quantity of pump can be reduced, therefore, it is possible to cost-saving, and reducing of entire system size can be sought.
In the 24th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 23rd scheme also possesses heat radiation circulation road, and described heat radiation circulation road has the 2nd heat exchanger, and thermal medium is circulated between described condenser and described 2nd heat exchanger.By the effect on circulation road of dispelling the heat, can effectively cool the refrigerant liquid being stored in condenser.
In the 25th scheme, such as, the described condenser of the refrigerating circulatory device of the 24th scheme stores the described refrigerant liquid produced by making described refrigerant vapour condensation, and the described thermal medium following looped cycle in described heat radiation is the described refrigerant liquid being stored in described condenser.According to the 25th scheme, with make other thermal mediums dispel the heat follow looped cycle situation compared with, condenser and heat radiation circulation road simple structure.
In the 26th scheme, such as, the refrigerating circulatory device of the either a program of the 1st ~ 25th scheme also possesses heat radiation circulation road, described heat radiation circulation road has the 2nd heat exchanger and is configured in the pump between the outlet of described condenser and the entrance of described 2nd heat exchanger, described heat radiation circulation road makes thermal medium circulate between described condenser and described 2nd heat exchanger, described return path between the outlet and the entrance of described 2nd heat exchanger of described pump from described heat radiation circulation road branch.According to the 26th scheme, the quantity of pump can be reduced, therefore, it is possible to cost-saving, and reducing of entire system size can be sought.
In the 27th scheme, such as, the described additive of the refrigerating circulatory device of the either a program of the 1st ~ 26th scheme is the material being mixed in described refrigerant composition, and the setting temperature of described mixture is lower than the setting temperature of described refrigerant composition.According to the 27th scheme, when atmospheric temperature is low, refrigerating circulatory device can be used as conditioner (being specifically heat supplier).In addition, under the condition under the temperature of cooling object is below the freezing point, refrigerating circulatory device can be used as refrigeration machine.
In the 28th scheme, such as, the described additive of the refrigerating circulatory device of the either a program of the 1st ~ 27th scheme is the material being mixed in described refrigerant composition, and the saturated vapour pressure under the specified temp of described mixture is lower than the saturated vapour pressure under the described specified temp of described refrigerant composition.According to the 28th scheme, can reduce the acting amount to compressor requirement, the efficiency of refrigerating circulatory device improves.
In the 29th scheme, such as, the described refrigerant composition of the refrigerating circulatory device of the either a program of the 1st ~ 28th scheme is the saturated vapour pressure under normal temperature is the material of negative pressure.
In the 30th scheme, such as, the either a program of the 1st ~ 29th scheme refrigerating circulatory device to be stored in saturated vapour pressure P1 under the described specified temp of the described refrigerant liquid of described evaporimeter higher than the saturated vapour pressure P2 under the specified temp of the described refrigerant liquid being stored in described condenser.According to the 30th scheme, by reducing the acting amount required compressor, the efficiency of refrigerating circulatory device improves.
Below, reference accompanying drawing is while be described embodiment of the present disclosure.The disclosure is not limited to following embodiment.
(the 1st embodiment)
As shown in Figure 1, the refrigerating circulatory device 100 of present embodiment possesses evaporimeter 21, steam path 2, condenser 23 and return path 3.The refrigerant vapour generated at evaporimeter 21 supplies to condenser 23 via steam path 2.Steam path 2 is provided with compressor 22.Refrigerant vapour is compressed by compressor 22.The refrigerant liquid of condenser 23 supplies to evaporimeter 21 via return path 3.Return path 3 is provided with separating mechanism 6.
Being filled with containing the saturated vapour pressure under normal temperature (JIS: 20 DEG C ± 15 DEG C/JIS Z8703) at evaporimeter 21, steam path 2, condenser 23 and return path 3 is the cold-producing medium of material as main component of negative pressure (pressure so that absolute manometer forces down than air).As such cold-producing medium, can enumerate containing water, alcohol or the ether cold-producing medium as main component.When refrigerating circulatory device 100 operates, the pressure ratio air of the inside of refrigerating circulatory device 100 forces down.The pressure of the entrance of compressor 22 is such as in the scope of 0.5 ~ 5kPaA.The pressure of the outlet of compressor 22 is such as in the scope of 5 ~ 15kPaA." main component " refers to by quality ratio containing maximum compositions.
Cold-producing medium is the mixture of refrigerant composition and additive.Additive is mixed in refrigerant composition typically to make the setting temperature of mixture lower than the material of the setting temperature of refrigerant composition.By using such mixture as cold-producing medium, following benefit can be obtained.That is, when atmospheric temperature is low, refrigerating circulatory device 100 can be used as conditioner (being specifically heat supplier).In addition, under the condition under the temperature of cooling object is below the freezing point, refrigerating circulatory device 100 can be used as refrigeration machine.As the example of the additive for preventing refrigerant freezeout, there is the polyalcohol such as ethylene glycol, propane diols, and the inorganic salts such as potassium acetate.In addition, anticorrisive agent, antirust agent etc. can be enumerated as additive.Additive such as contains in the refrigerant with the scope of 10 ~ 40 quality %.
In addition, additive also can be mixed in refrigerant composition with the material of the saturated vapour pressure under the specified temp making mixture lower than the saturated vapour pressure under the specified temp of refrigerant composition.Above-mentioned polyalcohol and inorganic salts have such effect.In addition, the lithium bromide used as absorbing liquid in Absorption Refrigerator also has such effect.If the refrigerant liquid being stored in condenser 23 contains such additive, then be stored in the refrigerant liquid of condenser 23 compared with the situation that refrigerant composition is formed, with the refrigerant liquid of the temperature (such as, 40 DEG C) required by lower pressing creation in condenser 23.That is, the pressure (back pressure) of the outlet of compressor 22 can be made to reduce.Its result, can reduce the acting amount required compressor 22, and the efficiency of refrigerating circulatory device 100 improves.
As the additive such as only containing a kind in the mixture of cold-producing medium with above-mentioned effect.In this case, the concentration of the additive in the refrigerant liquid being stored in condenser 23 is easy to adjust.If the saturated vapour pressure of the refrigerant liquid being stored in condenser 23 suitably can be adjusted, then also can containing the multiple additives with above-mentioned effect in as the mixture of cold-producing medium.
In addition, in this manual, " specified temp " refers to the temperature in the temperature range that cold-producing medium may reach between the on-stream period of refrigerating circulatory device 100.Such temperature range is such as-20 ~ 50 DEG C.
Refrigerating circulatory device 100 also possesses heat absorption circulation road 10 and heat radiation circulation road 11.
Heat absorption circulation road 10 has pump 12, the 1st heat exchanger 13 and stream (pipe arrangement) 10a ~ 10c.The two ends on heat absorption circulation road 10 are connected to evaporimeter 21.Specifically, one end of stream 10a is connected to the bottom of evaporimeter 21 (than liquid level part on the lower), and the other end of stream 10a is connected to the suction inlet of pump 12.One end of stream 10b is connected to the outlet of pump 12, and the other end of stream 10b is connected to the entrance of the 1st heat exchanger 13.One end of stream 10c is connected to the outlet of the 1st heat exchanger 13, and the other end of stream 10c is connected to the pars intermedia of evaporimeter 21.Pump 12 be configured in make from the suction inlet of this pump 12 to be stored in evaporimeter 21 refrigerant liquid liquid level aspect ratio needed for the large position of inlet head (required NPSH).Heat absorption circulation road 10 makes thermal medium circulate between evaporimeter 21 and the 1st heat exchanger 13.In the present embodiment, the thermal medium circulated on heat absorption circulation road 10 is the refrigerant liquid being stored in evaporimeter 21.By the effect on circulation road 10 of absorbing heat, can heat the refrigerant liquid being stored in evaporimeter 21 efficiently.In addition, because the refrigerant liquid making to be stored in evaporimeter 21 circulates on heat absorption circulation road 10, thus compared with the situation making other thermal mediums circulate on circulation road 10 of absorb heat, the simple structure on evaporimeter 21 and circulation road 10 of absorbing heat.
1st heat exchanger 13 can be the known heat exchanger such as fin-tube heat exchanger, shell and tube heat exchanger.Such as, when refrigerating circulatory device 100 is the conditioners carrying out indoor refrigeration, the 1st heat exchanger 13 is configured in indoor, is cooled by the air of refrigerant liquid to indoor.
Heat radiation circulation road 11 has pump 14, the 2nd heat exchanger 15 and stream (pipe arrangement) 11a ~ 11c.The two ends on heat radiation circulation road 11 are connected to condenser 23.Specifically, stream 11 aone end be connected to the bottom (than liquid level part on the lower) of condenser 23, the other end of stream 11a is connected to the suction inlet of pump 14.One end of stream 11b is connected to the outlet of pump 14, and the other end of stream 11b is connected to the entrance of the 2nd heat exchanger 15.One end of stream 11c is connected to the outlet of the 2nd heat exchanger 15, and the other end of stream 11c is connected to the pars intermedia of condenser 23.Pump 14 be configured in make from the suction inlet of this pump 14 to be stored in condenser 23 refrigerant liquid liquid level aspect ratio needed for the large position of inlet head (required NPSH).Heat radiation circulation road 11 makes thermal medium circulate between condenser 23 and the 2nd heat exchanger 15.In the present embodiment, the thermal medium circulated on heat radiation circulation road 11 is the refrigerant liquid being stored in condenser 23.By the effect on circulation road 11 of dispelling the heat, can cool the refrigerant liquid being stored in condenser 23 efficiently.In addition, because the refrigerant liquid making to be stored in condenser 23 circulates on heat radiation circulation road 11, thus compared with the situation making other thermal mediums circulate on circulation road 11 of dispel the heat, the simple structure on condenser 23 and circulation road 11 of dispelling the heat.
2nd heat exchanger 15 can be the known heat exchanger such as fin-tube heat exchanger, shell and tube heat exchanger.Such as, when refrigerating circulatory device 100 is for carrying out the conditioner of indoor refrigeration, the 2nd heat exchanger 15 is configured in outdoor, is heated by the air of refrigerant liquid to outdoor.
Evaporimeter 21 is such as formed by the container with thermal insulation and resistance to pressure.Evaporimeter 21 store refrigerant liquid, and in inside, refrigerant liquid is evaporated.That is, seethed with excitement in evaporimeter 21 by warmed-up refrigerant liquid by absorbing heat from external environment condition.In the present embodiment, the refrigerant liquid being stored in evaporimeter 21 directly contacts with the refrigerant liquid circulated on circulation road 10 of absorbing heat.That is, the part being stored in the refrigerant liquid of evaporimeter 21 is heated at the 1st heat exchanger 13, for heating the refrigerant liquid of saturation state.
As previously explained above, the additive contained by cold-producing medium can be mixed in refrigerant composition with the material of the saturated vapour pressure under the specified temp making mixture (cold-producing medium) lower than the saturated vapour pressure under the specified temp of refrigerant composition.Now, refrigerant composition accounts for the major part of the refrigerant vapour generated at evaporimeter 21.Although also depend on the kind of additive, the ratio of refrigerant composition is such as more than 99.8 quality % relative to refrigerant vapour.But, also except the air be inevitably mixed into, in refrigerant vapour, only can contain refrigerant composition.
Heat absorption circulation road 10 and evaporimeter 21 also can be configured to, and the refrigerant liquid being stored in evaporimeter 21 does not mix with the thermal medium circulated on circulation road 10 of absorbing heat.Such as, when evaporimeter 21 has the such heat-exchanging structure of shell and tube heat exchanger, by the thermal medium circulated on heat absorption circulation road 10, the refrigerant liquid being stored in evaporimeter 21 can be heated, make it evaporate.Now, the 1st heat exchanger 13 pairs thermal medium heats, and this thermal medium is used for heating the refrigerant liquid being stored in evaporimeter 21.Such structure is favourable in the total length this point in path that can shorten vacuum system.In addition, also evaporimeter 21 can be provided with thermal source.
Steam path 2 is the paths for guiding refrigerant vapour from evaporimeter 21 to condenser 23.Steam path 2 has upstream portion 25 and downstream part 26.By upstream portion 25, the top of evaporimeter 21 is connected to the suction inlet of compressor 22.By downstream part 26, the outlet of compressor 22 is connected to the top of condenser 23.Compressor 22 can be centrifugal compressor or positive displacement compressor.Compressor 22 sucks refrigerant vapour through upstream portion 25 from evaporimeter 21, adiabatically compresses.Refrigerant vapour after compression supplies to condenser 23 through downstream part 26.
Also multiple compressors can be set at steam path 2.In this situation, also intercooler can be set between low-pressure side compressor and high side compressors.Intercooler is cooled by the refrigerant vapour that have compressed at low-pressure side compressor.Thereby, it is possible to improve performance and the reliability of high side compressors.Fluid for cooling refrigerant vapour in intercooler both can be refrigerating circulatory device 100 specific part (such as, heat radiation circulation road 11) cold-producing medium that flows, also can be the thermal medium (such as, air or water) from outside supply.And then, also can be used together the former and the latter.In addition, also steam path 2 can be provided with multiple stage intercooler.Such as, when being provided with the compressor of n platform (n is the integer of more than 3) at steam path 2, (n-1) platform intercooler can be configured at steam path 2.
Condenser 23 is such as formed by the container with thermal insulation and resistance to pressure.Condenser 23 makes refrigerant vapour condensation, and stores the refrigerant liquid produced by making refrigerant vapour condensation.In the present embodiment, superheat state refrigerant vapour with is released hot by externally environment and cooled refrigerant liquid directly contacts and condensation.The refrigerant liquid being stored in condenser 23 directly contacts with the refrigerant liquid circulated on circulation road 11 of dispelling the heat.That is, the part being stored in the refrigerant liquid of condenser 23 is cooled, for cooling the refrigerant vapour of superheat state at the 2nd heat exchanger 15.
Heat radiation circulation road 11 and condenser 23 also can be configured to, and the refrigerant liquid being stored in condenser 23 does not mix with the thermal medium circulated on circulation road 11 of dispelling the heat.Such as, when condenser 23 has the such heat-exchanging structure of shell and tube heat exchanger, by the thermal medium circulated on heat radiation circulation road 11, refrigerant vapour can be cooled, make its condensation.Now, the 2nd heat exchanger 15 pairs thermal medium cools, and this thermal medium is used for cooling refrigerant vapour.Such structure is favourable in the total length this point in path that can shorten vacuum system.In addition, also condenser 23 can be provided with heat sink.
In the present embodiment, evaporimeter 21 and condenser 23 are heat exchangers of direct contact-type.Therefore, be easy to evaporimeter 21 and condenser 23 miniaturization.On the other hand, when making the thermal medium being different from cold-producing medium circulate on circulation road 10 (or heat radiation circulation road 11) of absorbing heat, because the NPSH required pump 12 (or pump 14) reduces, therefore, it is possible to reduce the height of refrigerating circulatory device 100.
Return path 3 is the paths for guiding refrigerant liquid from condenser 23 to evaporimeter 21.Return path 3 has upstream portion 31 and downstream part 32.By upstream portion 31, the bottom of condenser 23 is connected to the entrance of separating mechanism 6.By downstream part 32, the outlet of separating mechanism 6 is connected to the bottom of evaporimeter 21.That is, the upstream extremity of return path 3 is connected to the bottom of condenser 23, and the downstream of return path 3 is connected to the bottom of evaporimeter 21.Thereby, it is possible to make the cold-producing medium of liquid phase move from condenser 23 to evaporimeter 21.Separating mechanism 6 has the effect of the refrigerant liquid separation that additive is supplied from condenser 23 to evaporimeter 21.In other words, separating mechanism 6 makes refrigerant composition be separated with additive, stops additive to move from condenser 23 to evaporimeter 21 together with refrigerant composition.
The mass flow of the refrigerant vapour in steam path 2 is such as equal with the mass flow of the refrigerant liquid in return path 3.The mass flow of the refrigerant composition in steam path 2 is such as equal with the mass flow of the refrigerant composition in the downstream part 32 of return path 3.In this case, the concentration being not only stored in the additive in the refrigerant liquid of evaporimeter 21 is retained as necessarily, and the concentration being stored in the additive in the refrigerant liquid of condenser 23 is also retained as necessarily.Through the concentration of the additive in the refrigerant liquid after separating mechanism 6 fully lower than the concentration of the additive be stored in the refrigerant liquid of condenser 23.Refrigerant composition and micro-additive is contained through the refrigerant liquid after separating mechanism 6.Although also depend on the performance of separating mechanism 6, the concentration through the additive in the refrigerant liquid after separating mechanism 6 is likely high than the concentration of the additive in the refrigerant vapour flowed at steam path 2.Also only refrigerant composition can be contained through the refrigerant liquid after separating mechanism 6.
In the present embodiment, separating mechanism 6 is the filter of full dose filter type.Supply to evaporimeter 21 through the refrigerant liquid (permeate) after separating mechanism 6.The filter of full dose filter type has the excellent ability from refrigerant liquid separate addn.In addition, the filter of full dose filter type has and can realize miniaturization, less expensive, basic without the need to advantages such as cleanings.Especially, not containing insoluble material in the cold-producing medium of refrigerating circulatory device 100, so separating mechanism 6 preferably can use the filter of full dose filter type.Specifically, the filter of full dose filter type is the filter using pellicle.If use the filter of pellicle, then pressure differential between entrance and outlet can be utilized from refrigerant liquid separate addn.As the example of pellicle, there is RO film (Reverse Osmosis Membrane, reverse osmosis membrane).But, as long as can utilize separating mechanism 6 entrance and outlet between pressure differential from refrigerant liquid separate addn, the structure of separating mechanism 6 is not particularly limited.
The downstream of return path 3 is non-essential is directly connected in evaporimeter 21.As long as fully can guarantee the pressure differential between the entrance of separating mechanism 6 and outlet, the downstream of return path 3 also can be connected with the secondary loop (being circulation road 10 of absorbing heat in the present embodiment) being connected to evaporimeter 21.But preferably, the downstream of return path 3 is connected to the part in evaporimeter 21 and secondary loop with minimum pressure.In this case, can cut down the driving pressure making refrigerant liquid flow required at return path 3, the efficiency of refrigerating circulatory device 100 improves.From this point of view, preferably, the downstream of return path 3 is connected to evaporimeter 21.In addition, preferably, between the upstream extremity and the downstream of return path 3 on heat absorption circulation road 10, guarantee suitable distance, large impact can not be produced on the suction of pump 12 to make the refrigerant liquid flowing into evaporimeter 21 through return path 3.
In the present embodiment, at return path 3, pump is not set.In this case, refrigerant liquid by following 2 drive pressure and via separating mechanism 6 from condenser 23 Returning evaporimeter 21.One of 2 driving pressures are, the driving pressure caused by difference between the saturated vapour pressure being stored in the refrigerant liquid of evaporimeter 21 and the saturated vapour pressure of the refrigerant liquid being stored in condenser 23.2 drive pressure another be, the driving pressure caused by difference (liquid level head difference) of the height being stored in the liquid level of the refrigerant liquid of evaporimeter 21 and the height of the liquid level of the refrigerant liquid that is stored in condenser 23.By omitting pump, cost can be cut down.
It is lower than the saturated vapour pressure P1 under the specified temp of the refrigerant liquid being stored in evaporimeter 21 to be stored in saturated vapour pressure P2 under the specified temp of the refrigerant liquid of condenser 23.That is, when the temperature T1 supposing to be stored in the refrigerant liquid of evaporimeter 21 is equal with the temperature T2 of the refrigerant liquid being stored in condenser 23, (saturated vapour pressure P1) > (saturated vapour pressure P2) this relation is set up.When such relation is set up, the power (compressed action) of the compressor 22 required by refrigerant liquid producing predetermined temperature (such as, 40 DEG C) in condenser 23 can be reduced.That is, the efficiency of refrigerating circulatory device 100 can be improved.Its detailed reason as described below.
Such as, in order to give full play to the performance of refrigerating circulatory device 100 in refrigeration purposes, the temperature being stored in the refrigerant liquid of condenser 23 needs higher than atmospheric temperature.The temperature-independent of the refrigerant liquid generated at condenser 23 in be supplied to condenser 23 refrigerant vapour pressure and be stored in the saturated vapour pressure of refrigerant liquid of condenser 23.
First, the situation that the saturated vapour pressure of the refrigerant liquid being stored in evaporimeter is consistent with the saturated vapour pressure of the refrigerant liquid being stored in condenser is described.In this case, as shown in Figure 16 A, not only the temperature of the inside of evaporimeter and pressure according to single saturated vapor pressure curve C rEFchange, the temperature of the inside of condenser and pressure are also according to single saturated vapor pressure curve C rEFchange.Therefore, such as, in order to the refrigerant liquid within the condenser from 10 DEG C that are stored in evaporimeter produces the refrigerant liquid of 40 DEG C, need to make the pressure of the refrigerant vapour generated at evaporimeter at least from P a(such as 1.7kPa) rises to P c(such as 9kPa).
Then, to be stored in condenser 23 refrigerant liquid specified temp under saturated vapor pressure ratio be stored in the situation that the saturated vapor under the specified temp of the refrigerant liquid of evaporimeter 21 forces down and be described.In this case, as shown in fig 16b, the temperature of the inside of evaporimeter 21 and pressure are according to saturated vapor pressure curve C eVAchange.On the other hand, the temperature of the inside of condenser 23 and pressure are according to saturated vapor pressure curve C cONchange.If suppose saturated vapor pressure curve C eVAwith the saturated vapor pressure curve C shown in Figure 16 A rEFunanimously, then by making the pressure of the refrigerant vapour generated at evaporimeter 21 from P arise to P b(such as 7kPa), can produce the refrigerant liquid of 40 DEG C in condenser 23 from the refrigerant liquid of 10 DEG C that are stored in evaporimeter 21.That is, can save and pressure differential (P c-P b) corresponding acting amount.
In the present embodiment, be stored in the composition of the refrigerant liquid of condenser 23 by adjustment, (saturated vapour pressure P1) > (saturated vapour pressure P2) this relation illustrated before maintaining.The composition of refrigerant liquid and the saturated vapour pressure of refrigerant liquid closely related, so by adjustment refrigerant liquid composition, can saturated vapour pressure be made with comparalive ease to change.
More specifically, adjustment is stored in the composition of the refrigerant liquid of condenser 23, to make the concentration C 1 (unit: quality %) of concentration C 2 (unit: quality %) higher than the additive be stored in the refrigerant liquid of evaporimeter 21 of the additive be stored in the refrigerant liquid of condenser 23.By adjusting the concentration of additive, the saturated vapour pressure of the refrigerant liquid being stored in condenser 23 can be made with comparalive ease to change.In the present embodiment, refrigerating circulatory device 100 is provided with separating mechanism 6, as the means of the concentration for adjusting additive.
Suppose that the concentration of the additive be stored in the refrigerant liquid of evaporimeter 21 is α quality %, the concentration of the additive in the refrigerant vapour that steam path 2 flows is β quality %.When saturated vapour pressure lower than refrigerant composition of the saturated vapour pressure of the mixture of additive and refrigerant composition, in general, the saturated vapour pressure of the solution (such as the aqueous solution) of additive is also lower than the saturated vapour pressure of refrigerant composition.Therefore, in general, α ratio beta is worth large.In evaporimeter 21 during refrigerant liquid vaporization, the refrigerant composition with high saturated vapour pressure is easily vaporized, and therefore refrigerant composition occupies the whole or most of of refrigerant vapour.In addition, when evaporimeter 21 only stores refrigerant composition, this relation of α=β=0 is set up.
Compressed by compressor 22 at the refrigerant vapour of evaporimeter 21 generation and become superheated vapor, flowing into condenser 23.The refrigerant liquid containing refrigerant composition and additive is stored at condenser 23.If the concentration of the additive in this refrigerant liquid is set to γ quality %, be then worth γ ratio cc and value β large.In general, the concentration with the solute component of low saturated vapour pressure is higher, and the saturated vapour pressure of mixed liquor is lower.Therefore, when the concentration (γ quality %) of the additive in condenser 23 is higher than the concentration (α quality %) of the additive in evaporimeter 21, the minimizing amplitude of the saturated vapour pressure in condenser 23 is greater than the minimizing amplitude of the saturated vapour pressure in evaporimeter 21.Its result, can cut down the pressure ratio between evaporimeter 21 and condenser 23, the compression ratio namely required compressor 22 and acting amount.Thus, system effectiveness improves.In addition, the concentration (γ quality %) of the additive in condenser 23 more expands with the difference of the concentration (α quality %) of the additive in evaporimeter 21, then the advantage of refrigerating circulatory device 100 also more expands.
Saturated vapour pressure under the specified temp of refrigerant composition is defined as P, when saturated vapour pressure under the specified temp being present in the cold-producing medium of the specific part of refrigerating circulatory device 100 is defined as Pn, in the present embodiment, the maximum specific part of value (P-Pn) is made to be condenser 23.Now, the pressure ratio between evaporimeter 21 and condenser 23 can be made enough little.
In addition, the extent of saturated vapour pressure P1 and saturated vapour pressure P2 is not particularly limited, and concentration C 2 is also not particularly limited with the extent of concentration C 1.This is because, as long as the relation of (saturated vapour pressure P1) > (saturated vapour pressure P2) or (concentration C 2) > (concentration C 1) is set up, then compared with the situation of (saturated vapour pressure P1)=(saturated vapour pressure P2) or (concentration C 2)=(concentration C 1), just can reduce the acting amount that compressor 22 is required effectively.
The mass flow of the refrigerant vapour in steam path 2 and the mass flow of refrigerant composition and the refrigerant liquid in return path 3 and refrigerant composition is equal, the concentration of the additive in the concentration of the additive in evaporimeter 21 and condenser 23 is maintained necessarily.But the refrigerant vapour in steam path 2 and the mass flow of refrigerant composition are not necessarily equal with the mass flow of the refrigerant liquid in return path 3 and refrigerant composition.Such as, the concentration of additive in the refrigerant liquid supplied to evaporimeter 21 through separating mechanism 6 is likely higher than the concentration of the additive in the refrigerant vapour flowed at steam path 2.Under these circumstances, the concentrated of the additive in evaporimeter 21 cannot be avoided, so also can the part of the part being stored in the refrigerant liquid of evaporimeter 21 with the refrigerant liquid being stored in condenser 23 be exchanged termly or continuously as described later.Even if refrigerating circulatory device 100 is configured to the exchange carrying out refrigerant liquid, by the effect of separating mechanism 6, the variation of the concentration of the additive in evaporimeter 21 and condenser 23 also can be suppressed.Therefore, compared with the refrigerating circulatory device in the past without separating mechanism 6, the exchange capacity of refrigerant liquid can be cut down.That is, the heat loss of the exchange with refrigerant liquid can be cut down, so system effectiveness improves effectively.
Below, other embodiments of refrigerating circulatory device are described.As long as not contradiction technically, the explanation relevant to the refrigerating circulatory device 100 be described with reference to Fig. 1 also can be applicable to following embodiment.In addition, as long as not contradiction technically, the explanation relevant to following embodiment can not only be applicable to the refrigerating circulatory device 100 of Fig. 1, also mutually can be suitable in each embodiment.In addition, in the accompanying drawing that following embodiment is shown, sometimes omit heat absorption circulation road 10 and heat radiation circulation road 11.
(the 2nd embodiment)
As shown in Figure 2, refrigerating circulatory device 102, on the basis of the structure of the refrigerating circulatory device 100 of the 1st embodiment, possesses the flow rate adjusting mechanism 81 arranged at return path 3.In fig. 2, flow rate adjusting mechanism 81 is configured in the downstream part 32 of return path 3.But flow rate adjusting mechanism 81 also can be configured in upstream portion 31.As the example of flow rate adjusting mechanism 81, there are check-valves, isolating valve and flow rate regulating valve.By flow rate adjusting mechanism 81, the flow of the refrigerant liquid in return path 3 can be adjusted as required.In addition, when refrigerating circulatory device 102 stops, can preventing because the difference of the saturated vapour pressure between evaporimeter 21 and condenser 23 and liquid level head difference cause refrigerant liquid excessively to flow into evaporimeter 21 from condenser 23.The adjustment of the flow of the refrigerant liquid in return path 3 both can be carried out when the specified running of refrigerating circulatory device 102, also can carry out when transition operation.Also can control flow rate adjusting mechanism 81, to make to supply refrigerant liquid from condenser 23 off and on to evaporimeter 21.
Can clearly learn from the 2nd embodiment, in this manual, adjustment flow also comprises equipment such as using isolating valve makes flow change between zero and 1.
(the 3rd embodiment)
As shown in Figure 3A, refrigerating circulatory device 104, on the basis of the structure of the refrigerating circulatory device 100 of the 1st embodiment or the refrigerating circulatory device 102 of the 2nd embodiment, possesses bypass path 34 and flow rate adjusting mechanism 85.Bypass path 34 is the path for being guided from condenser 23 to evaporimeter 21 by refrigerant liquid, is to bypass the path of separating mechanism 6.Flow rate adjusting mechanism 85 adjusts the amount of the refrigerant liquid supplied from condenser 23 to evaporimeter 21 via separating mechanism 6 and the amount of refrigerant liquid that supplies from condenser 23 to evaporimeter 21 via bypass path 34.Such as, by bypass path 34 and flow rate adjusting mechanism 85, when additive is excessively concentrated in condenser 23, the high refrigerant liquid of the concentration ratio permeate of additive can be supplied to evaporimeter 21.In addition, bypass path 34 can be used when needs supply refrigerant liquid from condenser 23 to evaporimeter 21 rapidly.
Bypass path 34, from upstream portion 31 branch of return path 3, is converged with the downstream part 32 of return path 3.But the upstream extremity of bypass path 34 also can be directly connected in condenser 23.The downstream of bypass path 34 also can be directly connected in evaporimeter 21.In the present embodiment, flow rate adjusting mechanism 85 is the triple valves that can switch the 1st state and the 2nd state.1st state is the state that refrigerant liquid supplies from condenser 23 to evaporimeter 21 via separating mechanism 6.2nd state is the state that refrigerant liquid supplies from condenser 23 to evaporimeter 21 via bypass path 34.As the triple valve of flow rate adjusting mechanism 85, be configured in the branch location of the upstream portion 31 of bypass path 34 and return path 3.What the triple valve as flow rate adjusting mechanism 85 also can be configured in the downstream part 32 of bypass path 34 and return path 3 converges position.
As shown in Figure 3 B, flow rate adjusting mechanism 85 also can be made up of with the 2nd valve 83 being arranged on bypass path 34 the 1st valve 82 being arranged on return path 3.When bypass path 34 from return path 3 branch, converge with return path 3, the 1st valve 82 and can converge between position and is configured in return path 3 in branch location.1st valve 82 and the 2nd valve 83 can be isolating valve or flow rate regulating valve respectively.
(the 4th embodiment)
As shown in Figure 4, refrigerating circulatory device 106, on the basis of any structure of the refrigerating circulatory device 100,102 and 104 of the 1st ~ 3rd embodiment, possesses adjustment path 9.Adjustment path 9 is the path for guiding refrigerant liquid from evaporimeter 21 to condenser 23.Adjustment path 9 is provided with pump 52 and valve 91.Valve 91 is such as isolating valve.Even if the flow of refrigerant liquid (permeate) in return path 3 and the concentration of additive different from the flow of the refrigerant vapour in steam path 2 and the concentration of additive, if Use Adjustment path 9, then refrigerating circulatory device 106 also can be made to operate continually and steadily.
Such as, suppose that the concentration of the additive of the refrigerant vapour that the concentration ratio of the additive of the permeate flowed at return path 3 flows at steam path 2 is large.Specifically, suppose: the refrigerant vapour flowed at steam path 2 contains the water (refrigerant composition) of 99.9% and the ethylene glycol (additive) of 0.1%, on the other hand, the permeate flowed at return path 3 contains the water of 99% and the ethylene glycol of 1%.When the mass flow of refrigerant vapour is equal with the mass flow of permeate, move to the amount of the water of condenser 23 from evaporimeter 21 in time per unit more than the amount of the water moving to evaporimeter 21 in time per unit from condenser 23.If continuous running in this condition, then in evaporimeter 21, the concentration of ethylene glycol rises, and in condenser 23, the concentration of ethylene glycol reduces.In order to avoid the variation of the concentration of ethylene glycol, first, need to make the amount of movement of the water of time per unit consistent between steam path 2 with return path 3.That is, the mass flows of mass flow less times greater than refrigerant vapour to make permeate such as flow rate adjusting mechanism 81 (Fig. 2) are controlled.Its result, the amount of the water in the amount of the water in evaporimeter 21 and condenser 23 is retained as constant respectively.But the amount moving to the ethylene glycol of evaporimeter 21 from condenser 23 in time per unit is still greater than the amount of the ethylene glycol moving to condenser 23 in time per unit from evaporimeter 21.Therefore, the amount of the refrigerant liquid in evaporimeter 21 increases gradually, and the amount of the refrigerant liquid in condenser 23 reduces gradually.
In order to tackle the problems referred to above, Use Adjustment path 9, supplies refrigerant liquid from evaporimeter 21 to condenser 23 termly or continuously.So the revenue and expenditure relevant to the movement of water and the balance between revenue and expenditure (revenue and expenditure close to zero) relevant with the movement of ethylene glycol, the amount of the refrigerant liquid in the amount of the refrigerant liquid in evaporimeter 21 and condenser 23 is retained as constant respectively.As a result, refrigerating circulatory device 106 can be made to operate continually and steadily.
(the 5th embodiment)
As shown in Figure 5, refrigerating circulatory device 108, on the basis of any structure of the refrigerating circulatory device 100 ~ 106 of the 1st ~ 4th embodiment, possesses the pump 51 being arranged on return path 3.Pump 51 is specifically arranged on the upstream portion 31 of return path 3.Except the difference of the saturated vapour pressure between evaporimeter 21 and condenser 23 and liquid level head difference, also provided the driving pressure making refrigerant liquid flow required at return path 3 by pump 51.According to the present embodiment, high driving can be applied to refrigerant liquid to press, therefore, it is possible to separating mechanism 6 is miniaturized.In addition, the transmitance (purity of the refrigerant composition contained by permeate) of separating mechanism 6 can be improved.And then, by arranging the supply source of the driving pressure beyond the difference of saturated vapour pressure and liquid level head difference, the flow of the permeate in return path 3 more freely can be adjusted.Such as, even if the operating condition variation of refrigerating circulatory device 108, the flow of the permeate in return path 3 also can be suppressed to change.
(the 6th embodiment)
As shown in Figure 6, in refrigerating circulatory device 110, separating mechanism 6 is filters of cross-flow (cross-flow) mode.The filter of cross-current flow is same with the filter of full dose filter type, can be the filter using pellicle.In general, the filter of cross-current flow, compared with the filter of full dose filter type, is difficult to the blocking producing filter house, the performance that can play stably for a long time and high reliability.
In the present embodiment, return path 3 has upstream portion 31, the 1st downstream part 32 and the 2nd downstream part 33.Upstream portion 31 is parts that the refrigerant liquid (stoste) for processing in separating mechanism 6 guides from condenser 23 to separating mechanism 6.1st downstream part 32 is parts that the refrigerant liquid (permeate) for the concentration of additive being reduced guides from separating mechanism 6 to evaporimeter 21.2nd downstream part 33 is refrigerant liquid (concentrate) for the concentration of additive being increased guides (sending back to) parts from separating mechanism 6 to condenser 23 from.
Refrigerant liquid to be processed flows to separating mechanism 6 from condenser 23 via upstream portion 31.Permeate is discharged from the permeate outlet of separating mechanism 6, flows to evaporimeter 21 via the 1st downstream part 32.Concentrate is discharged from the concentrated solution outlet of separating mechanism 6, flows to condenser 23 via the 2nd downstream part 33.Upstream portion 31 is provided with pump 51.Except the difference of the saturated vapour pressure between evaporimeter 21 and condenser 23 and liquid level head difference, also provided the driving pressure making refrigerant liquid flow required at return path 3 by pump 51.
(the 7th embodiment)
As shown in Figure 7, refrigerating circulatory device 112, on the basis of the structure of the refrigerating circulatory device 110 of the 6th embodiment, possesses the flow rate adjusting mechanism 81 being arranged on return path 3.Flow rate adjusting mechanism 81 is configured in the 1st downstream part 32 of return path 3.But flow rate adjusting mechanism 81 also can be configured at least one party selected from upstream portion 31, the 1st downstream part 32 and the 2nd downstream part 33.As the example of flow rate adjusting mechanism 81, there are check-valves, isolating valve and flow rate regulating valve.According to the present embodiment, identical with the refrigerating circulatory device 102 of the 2nd embodiment, the flow of the refrigerant liquid in return path 3 can be adjusted.
(the 8th embodiment)
As shown in Figure 8, refrigerating circulatory device 114, on the basis of the structure of the refrigerating circulatory device 110 of the 6th embodiment or the refrigerating circulatory device 112 of the 7th embodiment, possesses bypass path 34 and flow rate adjusting mechanism 85.Bypass path 34 is the paths for guiding refrigerant liquid from condenser 23 to evaporimeter 21, is to bypass the path of separating mechanism 6.Flow rate adjusting mechanism 85 adjusts the amount of the refrigerant liquid supplied from condenser 23 to evaporimeter 21 via separating mechanism 6 and the amount of refrigerant liquid that supplies from condenser 23 to evaporimeter 21 via bypass path 34.According to the present embodiment, same with the refrigerating circulatory device 104 of the 3rd embodiment, directly can supply refrigerant liquid from condenser 23 to evaporimeter 21.In addition, the concentration of the additive in condenser 23 can also be made to decline, make the concentration of the additive in evaporimeter 21 increase.
Bypass path 34, from upstream portion 31 branch of return path 3, is converged with the 1st downstream part 32 of return path 3.But the upstream extremity of bypass path 34 also can be directly connected in condenser 23.The downstream of bypass path 34 also can be directly connected in evaporimeter 21.In the present embodiment, flow rate adjusting mechanism 85 is the triple valves that can switch the 1st state and the 2nd state.1st state is the state that refrigerant liquid supplies from condenser 23 to evaporimeter 21 via separating mechanism 6.2nd state is the state that refrigerant liquid supplies from condenser 23 to evaporimeter 21 via bypass path 34.Triple valve as flow rate adjusting mechanism 85 is configured in the branch location of the upstream portion 31 of bypass path 34 and return path 3.What the triple valve as flow rate adjusting mechanism 85 also can be configured in the 1st downstream part 32 of bypass path 34 and return path 3 converges position.
As being described with reference to Fig. 3 B, flow rate adjusting mechanism 85 also can be replaced into the 1st valve 82 being arranged on return path 3 and the 2nd valve 83 being arranged on bypass path 34.When bypass path 34 from return path 3 branch, converge with return path 3, the 1st valve 82 and can converge between position and is configured in return path 3 in branch location.1st valve 82 and the 2nd valve 83 can be isolating valve or flow rate regulating valve respectively.
(the 9th embodiment)
As shown in Figure 9, refrigerating circulatory device 116, on the basis of any structure of the refrigerating circulatory device 110,112 and 114 of the 6th ~ 8th embodiment, possesses adjustment path 9.Adjustment path 9 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23.Adjustment path 9 is provided with pump 52 and valve 91.Valve 91 is such as isolating valve.As being described in the 4th embodiment, by adjustment path 9, the revenue and expenditure relevant to the movement of refrigerant composition and the revenue and expenditure relevant with the movement of additive can be made close to zero.This can make the long-time continual and steady running of refrigerating circulatory device 116.
(the 10th embodiment)
As shown in Figure 10 A, refrigerating circulatory device 118, on the basis of any structure of the refrigerating circulatory device 100 ~ 108 of the 1st ~ 5th embodiment, possesses adjustment path 4.Adjustment path 4 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23 via separating mechanism 6.In the present embodiment, separating mechanism 6 is filters of full dose filter type.
Return path 3 has upstream portion 31 and downstream part 32.Upstream portion 31 is parts that the refrigerant liquid (stoste) for processing at separating mechanism 6 guides from condenser 23 to separating mechanism 6.Downstream part 32 is parts that the refrigerant liquid (permeate) for the concentration of additive being reduced guides from separating mechanism 6 to evaporimeter 21.Adjustment path 4 also has upstream portion 41 and downstream part 42.Upstream portion 41 is parts that the refrigerant liquid (stoste) for processing in separating mechanism 6 guides from evaporimeter 21 to separating mechanism 6.Upstream portion 41 is provided with pump 52.Pump 52 provides the driving pressure making refrigerant liquid flow required in adjustment path 4.Downstream part 42 is parts that the refrigerant liquid (permeate) for the concentration of additive being reduced guides from separating mechanism 6 to condenser 23.
Refrigerating circulatory device 118 also possesses the 1st triple valve 64 and the 2nd triple valve 65.The upstream portion 31 of return path 3 and 1 of adjusting in the upstream portion 41 in path 4 are optionally connected to the entrance of separating mechanism 6 by the 1st triple valve 64.2nd triple valve 65 is connected to the outlet of separating mechanism 6 by 1 that selects from the downstream part 32 of return path 3 and the downstream part 42 in adjustment path 4.That is, by the 1st triple valve 64 and the 2nd triple valve 65, the state that refrigerant liquid can be made to flow at return path 3 can be switched mutually with the state that refrigerant liquid can be made to flow in adjustment path 4.The outlet of the 1st triple valve 64 is connected by stream 61 with the entrance of separating mechanism 6.The outlet of separating mechanism 6 is connected by stream 62 with the entrance of the 2nd triple valve 65.
According to the present embodiment, refrigerant liquid can not only be made to move to evaporimeter 21 from condenser 23, refrigerant liquid can also be made to move to condenser 23 from evaporimeter 21.Such as, being conditioners at refrigerating circulatory device 118, atmospheric temperature reduces suddenly when carrying out warming operation, needing the concentration of the additive making the refrigerant liquid being stored in evaporimeter 21 as early as possible to rise.Now, if make refrigerant liquid flow to condenser 23 from evaporimeter 21 via adjustment path 4, then by the effect of separating mechanism 6, in evaporimeter 21, additive is concentrated.Thereby, it is possible to prevent the refrigerant liquid being stored in evaporimeter 21 from freezing.
As shown in Figure 10 B, refrigerating circulatory device 118 also can possess bypass path 44 and flow rate adjusting mechanism 86.Bypass path 44 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23, is to bypass the path of separating mechanism 6.Flow rate adjusting mechanism 86 adjusts the amount of the refrigerant liquid supplied from evaporimeter 21 to condenser 23 via separating mechanism 6 and the amount of refrigerant liquid that supplies from evaporimeter 21 to condenser 23 via bypass path 44.
Bypass path 44, from upstream portion 41 branch in adjustment path 4, is converged with the downstream part 42 in adjustment path 4.But the upstream extremity of bypass path 44 also can be directly connected in evaporimeter 21.The downstream of bypass path 44 also can be directly connected in condenser 23.In this enforcement, flow rate adjusting mechanism 86 is the triple valves that can switch the 1st state and the 2nd state.1st state is the state that refrigerant liquid supplies from evaporimeter 21 to condenser 23 via separating mechanism 6.2nd state is the state that refrigerant liquid supplies from evaporimeter 21 to condenser 23 via bypass path 44.Triple valve as flow rate adjusting mechanism 86 is configured in the branch location of the upstream portion 41 in bypass path 44 and adjustment path 4.What the triple valve as flow rate adjusting mechanism 86 also can be configured in the downstream part 42 in bypass path 44 and adjustment path 4 converges position.
As being described with reference to Fig. 3 B, flow rate adjusting mechanism 86 also can be replaced into the 1st valve 82 being arranged on adjustment path 4 and the 2nd valve 83 being arranged on bypass path 44.When bypass path 44 from adjustment path 4 branch, with adjustment path 4 converge, 1st valve 82 and can converge between position in branch location, specifically, between branch location and the 1st triple valve 64 (or the 2nd triple valve 65 and converge between position), be configured in adjustment path 4.1st valve 82 and the 2nd valve 83 can be isolating valve or flow rate regulating valve respectively.
Variation according to Figure 10 B, while the refrigerant liquid that reduces from condenser 23 to the concentration that evaporimeter 21 supplies additive via return path 3, the refrigerant liquid of not process separating mechanism 6 can be supplied from evaporimeter 21 to condenser 23 via bypass path 44.And then refrigerating circulatory device 118 also can possess the bypass path 34 and flow rate adjusting mechanism 85 (omitting diagram) that are described with reference to Fig. 8.In this case, can while via the refrigerant liquid that reduces to the concentration that condenser 23 supplies additive from evaporimeter 21 of adjustment path 4, supply the refrigerant liquid less than processing separating mechanism 6 from condenser 23 to evaporimeter 21 via bypass path 34.Thus, as being described in the 4th embodiment, the revenue and expenditure relevant to the movement of refrigerant composition and the balance between revenue and expenditure relevant with the movement of additive can be made with comparalive ease.As a result, the long-time continual and steady running of refrigerating circulatory device 106 can be made.
(the 11st embodiment)
As shown in Figure 11 A, refrigerating circulatory device 120, on the basis of any structure of the refrigerating circulatory device 110 ~ 116 of the 6th ~ 9th embodiment, possesses adjustment path 4.Adjustment path 4 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23 via separating mechanism 6.In the present embodiment, separating mechanism 6 is filters of cross-current flow.
Return path 3 has upstream portion 31, the 1st downstream part 32 and the 2nd downstream part 33.Their effect be described in the 6th embodiment identical.Adjustment path 4 also has upstream portion 41, the 1st downstream part 42 and the 2nd downstream part 43.Upstream portion 41 is parts that the refrigerant liquid (stoste) for processing in separating mechanism 6 guides from evaporimeter 21 to separating mechanism 6.Pump 51 and 52 is respectively arranged with in upstream portion 31 and 41.Pump 51 provides the driving pressure making refrigerant liquid flow required at return path 3.Pump 52 provides the driving pressure making refrigerant liquid flow required in adjustment path 4.1st downstream part 42 is the parts for the refrigerant liquid guiding the concentration of additive to reduce from separating mechanism 6 to condenser 23.2nd downstream part 43 is the parts for the refrigerant liquid guiding the concentration of (sending back to) additive to increase from separating mechanism 6 to evaporimeter 21.
Refrigerating circulatory device 120 also possesses the 1st triple valve 64, the 2nd triple valve 65 and the 3rd triple valve 66.The side selected from the upstream portion 31 of return path 3 and the upstream portion 41 in adjustment path 4 is optionally connected to the entrance of separating mechanism 6 by the 1st triple valve 64.The side selected from the 1st downstream part 32 of return path 3 and the 1st downstream part 42 in adjustment path 4 is optionally connected to the permeate outlet of separating mechanism 6 by the 2nd triple valve 65.The side selected from the 2nd downstream part 33 of return path 3 and the 2nd downstream part 43 in adjustment path 4 is optionally connected to the concentrated solution outlet of separating mechanism 6 by the 3rd triple valve 66.That is, by triple valve 64,65 and 66, mutually can switch and refrigerant liquid can be made in return path 3 state flowed and the state that refrigerant liquid can be made to flow in adjustment path 4.The outlet of the 1st triple valve 64 is connected by stream 61 with the entrance of separating mechanism 6.The permeate outlet of separating mechanism 6 is connected by stream 62 with the entrance of the 2nd triple valve 65.The concentrated solution outlet of separating mechanism 6 is connected by stream 63 with the entrance of the 3rd triple valve 66.
According to the present embodiment, in a same manner as in the tenth embodiment, refrigerant liquid can not only be made to move to evaporimeter 21 from condenser 23, refrigerant liquid can also be made to move to condenser 23 from evaporimeter 21.Therefore, in the present embodiment, the effect identical with the 10th embodiment can also be obtained.
As shown in Figure 11 B, refrigerating circulatory device 120 also can possess bypass path 44 and flow rate adjusting mechanism 86.Bypass path 44 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23, is to bypass the path of separating mechanism 6.Flow rate adjusting mechanism 86 adjusts the amount of the refrigerant liquid supplied from evaporimeter 21 to condenser 23 via separating mechanism 6 and the amount of refrigerant liquid that supplies from evaporimeter 21 to condenser 23 via bypass path 44.The structure of bypass path 44 and flow rate adjusting mechanism 86 and with reference to Figure 10 B be described the same.In addition, as being described with reference to Fig. 3 B, flow rate adjusting mechanism 86 also can be replaced into the 1st valve 82 being arranged on adjustment path 4 and the 2nd valve 83 being arranged on bypass path 44.Now, what be also described with reference Figure 10 B is the same.Refrigerating circulatory device 120 can also possess the bypass path 34 and flow rate adjusting mechanism 85 (omitting diagram) that are described with reference to Fig. 8.
The difference of the variation shown in the variation shown in Figure 10 B and Figure 11 B is only the type of separating mechanism 6.Therefore, relevant to the variation shown in Figure 10 B whole explanations are applicable to the variation shown in Figure 11 B.
The refrigerating circulatory device be described with reference to Fig. 1 ~ Figure 11 B only possesses a separating mechanism 6 respectively.In order to switch the flow direction of refrigerant liquid, such as, be provided with at least 1 triple valve.But as described below, the quantity of separating mechanism is not limited to 1.
(the 12nd embodiment)
As illustrated in fig. 12, refrigerating circulatory device 122, on the basis of any structure of the refrigerating circulatory device 100 ~ 108 of the 1st ~ 5th embodiment, possesses adjustment path 9 and the 2nd separating mechanism 7.Adjustment path 9 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23.2nd separating mechanism 7 is arranged on adjustment path 9.2nd separating mechanism 7 has the effect of the refrigerant liquid separation that additive is supplied from flash-pot 21 to condenser 23.In the present embodiment, the 2nd separating mechanism 7 is same with separating mechanism 6 (the 1st separating mechanism), is the filter of full dose filter type.Through adjustment path 9, the refrigerant liquid after the concentration reduction of additive can be supplied from evaporimeter 21 to condenser 23.Although also depend on the performance of the 2nd separating mechanism 7, also only refrigerant composition can be contained through the refrigerant liquid after the 2nd separating mechanism 7.
Adjustment path 9 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23.Adjustment path 9 has upstream portion 92 and downstream part 93.By upstream portion 92, the bottom of evaporimeter 21 is connected to the entrance of the 2nd separating mechanism 7.The bottom of condenser 23 is connected to by the outlet of downstream part the 93,2nd separating mechanism 7.That is, the upstream extremity in adjustment path 9 is connected to the bottom of evaporimeter 21, and the downstream in adjustment path 9 is connected to the bottom of condenser 23.Thereby, it is possible to make the cold-producing medium of liquid phase move from evaporimeter 21 to condenser 23.
Return path 3 is provided with pump 51 and flow rate adjusting mechanism 81.Pump 51 is specifically arranged on the upstream portion 31 of return path 3.Flow rate adjusting mechanism 81 is arranged on the upstream portion 31 (or downstream part 32) of return path 3.Except the difference of the saturated vapour pressure between evaporimeter 21 and condenser 23 and liquid level head difference, also provided the driving pressure making refrigerant liquid flow required at return path 3 by pump 51.Adjustment path 9 is provided with pump 52 and flow rate adjusting mechanism 91.Pump 52 is specifically arranged on the upstream portion 92 in adjustment path 9.Flow rate adjusting mechanism 91 is arranged on the upstream portion 92 (or downstream part 93) in adjustment path 9.Pump 52 provides the driving pressure making refrigerant liquid flow required in adjustment path 9.As the example of flow rate adjusting mechanism 81 and 91, there are check-valves, isolating valve and flow rate regulating valve.In a same manner as in the second embodiment, according to flow rate adjusting mechanism 81 and 91, the flow of the refrigerant liquid in return path 3 and adjustment path 9 can be adjusted as required.Therefore, the concentration stabilize of the additive in being also easy to make evaporimeter 21 and condenser 23 separately when the astable running of refrigerating circulatory device 122.In addition, when refrigerating circulatory device 122 stops, can preventing refrigerant liquid from exceedingly flowing into the opposing party from a side of evaporimeter 21 and condenser 23.
In the present embodiment, return path 3 is separated from adjustment path 9.Therefore, it is possible to do not arrange the mechanism for toggle path, and refrigerant liquid is flowed simultaneously at return path 3 and adjustment path 9.In addition, the 1st separating mechanism 6 and the 2nd separating mechanism 7 also can be configured to the purity that can adjust permeate respectively.If like this, then can by the exchange of permeate, the revenue and expenditure of the amount of movement of the material between adjustment evaporimeter 21 and condenser 23.While suppress the exchange capacity of the refrigerant liquid between evaporimeter 21 and condenser 23, heat loss can be reduced further.
In addition, as shown in Figure 12 B, refrigerating circulatory device 122 also can possess bypass path 95 and flow rate adjusting mechanism 97.Bypass path 95 is to bypass the path of the 2nd separating mechanism 7, is the path for guiding refrigerant liquid from evaporimeter 21 to condenser 23.Flow rate adjusting mechanism 97 adjusts the amount of the refrigerant liquid supplied from evaporimeter 21 to condenser 23 via the 2nd separating mechanism 7 and the amount of refrigerant liquid that supplies from evaporimeter 21 to condenser 23 via bypass path 95.In this variation, flow rate adjusting mechanism 97 comprises the 1st valve 91 being arranged on adjustment path 9 and the 2nd valve 97 being arranged on bypass path 95.Flow rate adjusting mechanism 97 also can be the triple valve of the branch location (or converging position) being configured in adjustment path 9 and bypass path 95.The explanation relevant to the 3rd embodiment and variation (Fig. 3 A and Fig. 3 B) thereof goes for bypass path 95 and flow rate adjusting mechanism 97.
(the 13rd embodiment)
As shown in figure 13, refrigerating circulatory device 124, on the basis of any structure of the refrigerating circulatory device 110 ~ 116 of the 6th ~ 9th embodiment, possesses adjustment path 4 and the 2nd separating mechanism 7.Adjustment path 4 is the paths for guiding refrigerant liquid from evaporimeter 21 to condenser 23.2nd separating mechanism 7 is arranged on adjustment path 4.2nd separating mechanism 7 has the effect of the refrigerant liquid separation that additive is supplied from flash-pot 21 to condenser 23.In the present embodiment, the 2nd separating mechanism 7 is filters of cross-current flow.Refrigerant liquid after the concentration supplying additive from evaporimeter 21 to condenser 23 through adjustment path 4 reduces.Although also depend on the performance of the 2nd separating mechanism 7, also only refrigerant composition can be contained through the refrigerant liquid after the 2nd separating mechanism 7.
Return path 3 has upstream portion 31, the 1st downstream part 32 and the 2nd downstream part 33.Their effect with illustrate in the 6th embodiment the same.Adjustment path 4 also has upstream portion 41, the 1st downstream part 42 and the 2nd downstream part 43.Upstream portion 41 is parts that the refrigerant liquid (stoste) for processing in the 2nd separating mechanism 7 guides from evaporimeter 21 to the 2nd separating mechanism 7.Pump 51 and 52 is respectively arranged with in upstream portion 31 and 41.Pump 51 provides the driving pressure making refrigerant liquid flow required at return path 3.Pump 52 provides the driving pressure making refrigerant liquid flow required in adjustment path 4.1st downstream part 42 is for the part of refrigerant liquid after guide the concentration of additive to reduce from the 2nd separating mechanism 7 to condenser 23.2nd downstream part 43 is for the part of refrigerant liquid after guide the concentration of (sending back to) additive to raise from the 2nd separating mechanism 7 to evaporimeter 21.
Refrigerating circulatory device 124 also possesses the 1st triple valve 64 and the 2nd triple valve 65.The side selected from the 1st downstream part 32 of return path 3 and the 2nd downstream part 43 in adjustment path 4 is optionally connected to evaporimeter 21 by the 1st triple valve 64.The side selected from the 2nd downstream part 33 of return path 3 and the 1st downstream part 42 in adjustment path 4 is connected to condenser 23 by the 2nd triple valve 65.That is, can triple valve 64 and 65 be passed through, the state that refrigerant liquid flows at return path 3 can be made mutually to switch with the state that refrigerant liquid can be made to flow in adjustment path 4.An entrance and the permeate of the 1st separating mechanism 6 of the 1st triple valve 64 are exported and are connected by the 1st downstream part 32 of return path 3.Another entrance of 1st triple valve 64 is connected by the 2nd downstream part 43 adjusting path 4 with the concentrated solution outlet of the 2nd separating mechanism 7.An entrance of the 2nd triple valve 65 is connected with the 2nd downstream part 33 of the concentrated solution outlet of the 1st separating mechanism 6 by return path 3.The 1st downstream part 42 that another entrance and the permeate of the 2nd separating mechanism 7 of the 2nd triple valve 65 export by adjusting path 4 is connected.The outlet of the 1st triple valve 64 is connected by stream 67 with evaporimeter 21.The outlet of the 2nd triple valve 65 is connected by stream 68 with condenser 23.
According to the present embodiment, same with the 12nd embodiment, can by the exchange of permeate, the revenue and expenditure of the amount of movement of the material between adjustment evaporimeter 21 and condenser 23.While suppress the exchange capacity of the refrigerant liquid between evaporimeter 21 and condenser 23, heat loss can be reduced further.
Also can be same with the 12nd embodiment (Figure 12 A and Figure 12 B), the return path 3 of the refrigerating circulatory device 124 of present embodiment is provided with flow rate adjusting mechanism 81.In addition, also adjustment path 9 can be provided with flow rate adjusting mechanism 91.According to such structure, the effect identical with the 12nd embodiment can be obtained.
And then same with the 12nd embodiment (Figure 12 B), the refrigerating circulatory device 124 of present embodiment also can possess bypass path 95 and flow rate adjusting mechanism 97.The structure of bypass path 95 and flow rate adjusting mechanism 97 and function be described with reference to Figure 12 B the same.
(the 14th embodiment)
As shown in figure 14, at the refrigerating circulatory device 126 of present embodiment, the part on heat absorption circulation road 10 is common for adjusting path 4.Specifically, in heat absorption circulation road 10, pump 12 is configured between the outlet (outlet is formed in the bottom of evaporimeter 21) of evaporimeter 21 and the entrance of the 1st heat exchanger 13.Adjust path 4 between the outlet and the entrance of the 1st heat exchanger 13 of pump 12 from circulation road 10 (stream 10b) branch of absorbing heat.Adjustment path 4 is provided with the flow rate adjusting mechanism such as isolating valve, regulating valve 87.
In addition, the part on heat radiation circulation road 11 is that return path 3 is common.Specifically, in heat radiation circulation road 11, pump 14 is configured between the outlet (outlet is formed in the bottom of condenser 23) of condenser 23 and the entrance of the 2nd heat exchanger 15.Return path 3 between the outlet and the entrance of the 2nd heat exchanger 15 of pump 14 from circulation road 11 (stream 11b) branch of dispelling the heat.Return path 3 is provided with the flow rate adjusting mechanism such as isolating valve, regulating valve 81.
According to the present embodiment, the quantity of pump can be reduced, therefore, it is possible to cost-saving, and reducing of entire system size can be sought.The structure of present embodiment also can be applicable to the refrigerating circulatory device of other embodiments with return path 3 and adjustment path 4 (or 9).
(the 15th embodiment)
As shown in figure 15, the refrigerating circulatory device 128 of present embodiment is on the basis of any structure of the refrigerating circulatory device 100 ~ 126 of the 1st ~ 14th embodiment, and the mode possessing the after-stage being positioned at compressor 22 is arranged on the jet pump 28 of steam path 2.Steam path 2 has part 25,26 and 27.By part 25, the top of evaporimeter 21 is connected to the suction inlet of compressor 22.By part 26, the outlet of compressor 22 is connected to the attraction inflow entrance of jet pump 28.By part 27, the outlet of jet pump 28 is connected to the top of condenser 23 (extractor 23).
Through stream 11c, flow to jet pump 28 from the refrigerant liquid of the 2nd heat exchanger 15 outflow as driving and supply.Through part 26, the refrigerant vapour after being compressed by compressor 22 is flowed to jet pump 28 as attraction and supplies.Jet pump 28 is used the refrigerant vapour after being compressed by compressor 22 and generates the flow of refrigerant of high temperature from the refrigerant liquid that the 2nd heat exchanger 15 flows out.The flow of refrigerant of high temperature also can be single-phase refrigerant liquid.In this case, jet pump 28 has the effect making refrigerant vapour condensation.The flow of refrigerant of high temperature also can be the two-phase flow comprising refrigerant liquid and refrigerant vapour.The pressure of the refrigerant vapour at the outlet place of the pressure ratio compressors 22 of the cold-producing medium (flow of refrigerant) in the exit of jet pump 28 is high.That is, jet pump 28 has the effect of the pressure increase making cold-producing medium.If the pressure drop in the exit of jet pump 28, then the pressure (back pressure) of the outlet of compressor 22 can be made further to decline.Extractor 23 accepts flow of refrigerant from jet pump 28, from flow of refrigerant, extract refrigerant liquid.In the present embodiment, condenser (condensing mechanism) is formed by jet pump 28 and extractor 23.Extractor 23 such as has the structure identical with condenser 23 illustrated before.
(the 16th embodiment)
Then, the 16th mode is described.In the 1st embodiment ~ the 15th embodiment, the refrigerating circulatory device with separating mechanism is illustrated, but in the 16th embodiment, the refrigerating circulatory device without separating mechanism is described.
As shown in figure 17, the refrigerating circulatory device 130 of present embodiment possesses evaporimeter 21, steam path 2 and condenser 23.Steam path 2 is provided with compressor 22.Their structure with illustrate in the 1st embodiment the same.But, refrigerating circulatory device 130 be configured to the refrigerant liquid being stored in condenser 23 not sent back to evaporimeter 21 and discharge to the outside of refrigerating circulatory device 130, the refrigerating circulatory device of open loop mode.
Specifically, refrigerating circulatory device 130 possesses the heating path 17 being connected to condenser 23.Specifically, the upstream extremity in heating path 17 is connected to the bottom of condenser 23.Heating path 17 is provided with pump 14 and heat exchanger 15.Pump 14 is between the outlet and the entrance of heat exchanger 15 of condenser 23.The refrigerant liquid being stored in condenser 23 supplies through heating path 17 heat exchanger 15.Heat exchanger 15 is such as configured in indoor to heat the air of indoor.Refrigerant liquid is cooled by thermal mediums such as indoor air in heat exchanger 15, and the outside to refrigerating circulatory device 130 is discharged.Also additive can be reclaimed from the refrigerant liquid be discharged to the outside.
The refrigerant liquid only containing refrigerant composition is stored at evaporimeter 21.But, also can store the refrigerant liquid containing refrigerant composition and additive at evaporimeter 21.If make refrigerating circulatory device 130 continuous running, then in evaporimeter 21, refrigerant liquid reduces gradually.Therefore, evaporimeter 21 is provided with the supply mouth for supply refrigerant composition, with the refrigerant composition (such as, water) that can reduce from the outside supply of refrigerating circulatory device 130 because of the generation of refrigerant vapour.Also can to evaporimeter 21 supply additive (such as, ethylene glycol) together with refrigerant composition.
Condenser 23 has the such structure of shell and tube heat exchanger, to make it possible to cool refrigerant vapour thus generate refrigerant liquid.That is, the thermal medium (such as water) by circulating in pipe cools refrigerant vapour, store refrigerant liquid in shell.The refrigerant liquid containing refrigerant composition and additive is stored at condenser 23.The refrigerant liquid being stored in condenser 23 is discharged by the outside of greenhouse path 17 to refrigerating circulatory device 130.Therefore, if make refrigerating circulatory device 130 continuous running, then the concentration being stored in the additive in the refrigerant liquid of condenser 23 reduces gradually.Therefore, condenser 23 is provided with the supply mouth for supply additive, with can from the outside supply additive of refrigerating circulatory device 130.
According to the present embodiment, the concentration of the additive be stored in the refrigerant liquid of evaporimeter 21 can be made to be zero.By the increment of adjustment to the additive of condenser 23, the change in concentration of the additive be stored in the refrigerant liquid of condenser 23 more freely can be made.That is, can evaporimeter 21 and condenser 23 respective in, by additive preferred value for the smooth running that the ratio of refrigerant liquid is adjusted to for refrigerating circulatory device 130.Its result, can be maintained the pressure lower than the saturated vapour pressure P1 under the specified temp of the refrigerant liquid being stored in evaporimeter 21 by the saturated vapour pressure P2 under the specified temp being stored in the refrigerant liquid of condenser 23.
The refrigerating circulatory device of other scheme of the present disclosure, possesses:
Evaporimeter, it stores refrigerant liquid, and described refrigerant liquid is evaporated;
Compressor, it is by the refrigerant vapor compression from described evaporimeter; And
Condenser, its described refrigerant vapour condensation made in described compressor compresses, and store the described refrigerant liquid generated by making described refrigerant vapour condensation,
It is higher than the saturated vapour pressure P2 under the specified temp of the described refrigerant liquid being stored in described condenser to be stored in saturated vapour pressure P1 under the described specified temp of the described refrigerant liquid of described evaporimeter.
According to the program, decrease the acting amount to compressor requirement, the efficiency of refrigerating circulatory device improves thus.
[utilizability in industry]
Refrigerating circulatory device disclosed in this description is especially useful to conditioners such as home-use air-conditioning, business air-conditionings.Disclosed in this description, refrigerating circulatory device is not limited to conditioner, also can be other the device such as cold (chiller), regenerative apparatus.The heating target of the 1st heat exchanger 13 and the cooling object of the 2nd heat exchanger 15 both can be the gas beyond air, also can be liquid.

Claims (15)

1. a refrigerating circulatory device, uses the mixture of refrigerant composition and additive as cold-producing medium, possesses:
Evaporimeter, its store refrigerant liquid, and make described refrigerant liquid evaporate and generate refrigerant vapour;
Condenser, it makes described refrigerant vapour condensation and generates refrigerant liquid;
Compressor, it is arranged between described evaporimeter and described condenser, compresses described refrigerant vapour;
Steam path, described evaporimeter and described condenser link via described compressor by it, guide described refrigerant vapour from described evaporimeter to described condenser;
Return path, it guides described refrigerant liquid from described condenser to described evaporimeter; And
Separating mechanism, it is arranged on described return path, and described additive is separated from the described refrigerant liquid supplied to described evaporimeter from described condenser.
2. refrigerating circulatory device according to claim 1,
Described separating mechanism is the filter of full dose filter type.
3. refrigerating circulatory device according to claim 1,
Also possesses the flow rate adjusting mechanism being arranged on described return path.
4. refrigerating circulatory device according to claim 1,
Also possesses the pump being arranged on described return path.
5. refrigerating circulatory device according to claim 1,
Described separating mechanism is the filter of cross-current flow,
Described return path has: (a1) upstream portion, it guides the described refrigerant liquid that will process described separating mechanism from described condenser to described separating mechanism, (a2) the 1st downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described evaporimeter, and (a3) the 2nd downstream part, its described refrigerant liquid guiding the concentration of described additive to increase from described separating mechanism to described condenser.
6. refrigerating circulatory device according to claim 5,
Also possesses the flow rate adjusting mechanism being arranged on described return path.
7. refrigerating circulatory device according to claim 5, also possesses:
Bypass path, it walks around described separating mechanism, is guided by described refrigerant liquid from described condenser to described evaporimeter; And
Flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described condenser to described evaporimeter via described separating mechanism and the amount of described refrigerant liquid that supplies from described condenser to described evaporimeter via described bypass path.
8. refrigerating circulatory device according to claim 5,
Also possess adjustment path, described adjustment path has valve, guides described refrigerant liquid from described evaporimeter to described condenser.
9. refrigerating circulatory device according to claim 2,
Also possess adjustment path, described adjustment path guides described refrigerant liquid from described evaporimeter to described condenser via described separating mechanism,
Described return path has: upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described condenser to described separating mechanism; And downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described evaporimeter,
Described adjustment path has: upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described evaporimeter to described separating mechanism; And downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described condenser,
Described refrigerating circulatory device also possesses: the 1st triple valve, and the side selected from the described upstream portion of described return path and the described upstream portion in described adjustment path is optionally connected to the entrance of described separating mechanism by it; And the 2nd triple valve, the side selected from the described downstream part of described return path and the described downstream part in described adjustment path is optionally connected to the outlet of described separating mechanism by it.
10. refrigerating circulatory device according to claim 9, also possesses:
Bypass path, it walks around described separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And
Flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.
11. refrigerating circulatory devices according to claim 5,
Also possess adjustment path, described adjustment path guides described refrigerant liquid from described evaporimeter to described condenser via described separating mechanism,
Described adjustment path has: (b1) upstream portion, and it guides the described refrigerant liquid that will process described separating mechanism from described evaporimeter to described separating mechanism; (b2) the 1st downstream part, its described refrigerant liquid guiding the concentration of described additive to reduce from described separating mechanism to described condenser; And (b3) the 2nd downstream part, its described refrigerant liquid guiding the concentration of described additive to increase from described separating mechanism to described evaporimeter,
Described refrigerating circulatory device also possesses: (c1) the 1st triple valve, and the side selected from the described upstream portion of described return path and the described upstream portion in described adjustment path is optionally connected to the entrance of described separating mechanism by it; (c2) the 2nd triple valve, the side selected from described 1st downstream part of described return path and described 1st downstream part in described adjustment path is optionally connected to the permeate outlet of described separating mechanism by it; And (c3) the 3rd triple valve, the side selected from described 2nd downstream part of described return path and described 2nd downstream part in described adjustment path is optionally connected to the concentrated solution outlet of described separating mechanism by it.
12. refrigerating circulatory devices according to claim 11, also possess:
Bypass path, it walks around described separating mechanism, guides described refrigerant liquid from described evaporimeter to described condenser; And
Flow rate adjusting mechanism, it adjusts the amount of the described refrigerant liquid supplied from described evaporimeter to described condenser via described separating mechanism and the amount of described refrigerant liquid that supplies from described evaporimeter to described condenser via described bypass path.
13. refrigerating circulatory devices according to claim 1,
Described additive is the material being mixed in described refrigerant composition, and the saturated vapour pressure under the specified temp of described mixture is lower than the saturated vapour pressure under the described specified temp of described refrigerant composition.
14. refrigerating circulatory devices according to claim 1,
Described refrigerant composition is the saturated vapour pressure under normal temperature is the material of negative pressure.
15. refrigerating circulatory devices according to any one of claim 1 ~ 14,
It is higher than the saturated vapour pressure P2 under the specified temp of the described refrigerant liquid being stored in described condenser to be stored in saturated vapour pressure P1 under the described specified temp of the described refrigerant liquid of described evaporimeter.
CN201410567535.7A 2013-10-22 2014-10-22 Refrigeration-cycle equipment Pending CN104567052A (en)

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