WO2004029524A1 - 吸収冷凍機 - Google Patents
吸収冷凍機 Download PDFInfo
- Publication number
- WO2004029524A1 WO2004029524A1 PCT/JP2003/008040 JP0308040W WO2004029524A1 WO 2004029524 A1 WO2004029524 A1 WO 2004029524A1 JP 0308040 W JP0308040 W JP 0308040W WO 2004029524 A1 WO2004029524 A1 WO 2004029524A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- regenerator
- auxiliary
- temperature regenerator
- absorber
- solution
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/008—Sorption machines, plants or systems, operating continuously, e.g. absorption type with multi-stage operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Definitions
- the present invention relates to a triple effect absorption refrigerator, and more particularly to a triple effect absorption refrigerator capable of relaxing the pressure and the solution temperature of a high-temperature regenerator.
- the present invention enables an intermediate cycle between a double effect and a triple effect, enables the pressure or solution temperature of a high-temperature regenerator to be equal to or lower than a predetermined value, and further reduces the heat source temperature.
- a triple effect absorption refrigerator capable of performing the above-described operation.
- a high-temperature regenerator a medium-temperature regenerator, a low-temperature regenerator, a condenser, an absorber, an evaporator, an auxiliary regenerator, an auxiliary absorber, and those devices.
- a triple-effect absorption refrigerator having a path for connecting the auxiliary absorber, a high-concentration circulation path for circulating a solution among the absorber, the auxiliary regenerator, the intermediate-temperature regenerator, and the high-temperature regenerator;
- means for stopping or exerting the function of the auxiliary regenerator and / or the auxiliary absorber may be provided.
- a high-temperature regenerator a medium-temperature regenerator, a low-temperature regenerator, a condenser, an absorber, an evaporator, an auxiliary regenerator, an auxiliary absorber, and a device for connecting these devices are provided.
- a triple effect absorption refrigerator having a path, wherein a part of the dilute solution from the absorber is guided to the auxiliary absorber, and a path for guiding the dilute solution of the auxiliary absorber to the low temperature regenerator; and the low temperature regenerator.
- means for stopping or exerting the function of the auxiliary regenerator and / or the auxiliary absorber can be provided.
- a high-temperature regenerator, a medium-temperature regenerator, a low-temperature regenerator, a condenser, an absorber, an evaporator, an auxiliary regenerator, an auxiliary absorber, and a device for connecting these devices are provided.
- a triple effect absorption refrigerator having a passage, wherein (a) the absorber, the auxiliary regenerator, A medium-temperature regenerator, a high-concentration circulation path for circulating the solution between the high-temperature regenerator, and a low-concentration circulation path for circulating the solution between the auxiliary absorber and the low-temperature regenerator; A path for guiding the generated refrigerant vapor to the auxiliary absorber; a path for guiding the refrigerant vapor generated in the intermediate-temperature regenerator to the heating side of the low-temperature regenerator and the auxiliary regenerator; and a refrigerant generated in the high-temperature regenerator.
- the refrigerant vapor generated in the intermediate temperature regenerator (C) a cycle for forming a path leading to the heating side of the low-temperature regenerator and the auxiliary regenerator, and a path leading the refrigerant vapor generated in the high-temperature regenerator to the heating side of the medium-temperature regenerator;
- a means for switching between a cycle in which the function of the auxiliary regenerator and / or the function of the auxiliary absorber is stopped in the above cycle is provided.
- the auxiliary regenerator is provided with an adjustment mechanism for increasing or decreasing the heating and concentrating capacity. be able to.
- the auxiliary absorber may be provided with an adjusting mechanism for increasing or decreasing the absorption capacity.
- auxiliary regenerator may be provided with an adjusting mechanism for increasing or decreasing the heating and concentrating ability
- auxiliary absorber may be provided with an adjusting mechanism for increasing or decreasing the absorbing ability
- a path having a steam valve for guiding the refrigerant vapor generated in the high-temperature regenerator and the Z- or medium-temperature regenerator to a regenerator at a lower pressure can be provided.
- a path may be provided in which the solution in the high concentration circulation path is introduced into the low concentration circulation path, and the solution in the low concentration circulation path is returned to the high concentration circulation path so as to balance the solution.
- the means for switching the cycle, the adjusting mechanism for increasing / decreasing the heating / concentrating capacity, or the steam valve may include an internal pressure and / or a solution temperature of the high-temperature regenerator or a physical quantity related thereto, respectively.
- a control mechanism can be provided to adjust the value not to exceed.
- a high-temperature regenerator, a medium-temperature regenerator, a low-temperature regenerator, a condenser, an absorber, an evaporator, an auxiliary regenerator, an auxiliary absorber, and a path connecting these devices are provided.
- a triple effect absorption refrigerator having a high concentration circulation path for circulating a solution among the absorber, the auxiliary regenerator, the intermediate temperature regenerator, and the high temperature regenerator; the auxiliary absorber and the low temperature regeneration.
- the auxiliary regenerator Receiving waste heat from the outside, characterized in that a heat transfer tube for heating the solution.
- a high-temperature regenerator, a medium-temperature regenerator, a low-temperature regenerator, a condenser, an absorber, an evaporator, an auxiliary regenerator, an auxiliary absorber, and a path connecting these devices are provided.
- a triple effect absorption refrigerator having a high concentration circulation path for circulating a solution among the absorber, the auxiliary regenerator, the intermediate temperature regenerator, and the high temperature regenerator; the auxiliary absorber and the low temperature regeneration.
- a triple effect absorption refrigerator having a path leading to the heating side of the auxiliary regenerator and a path leading refrigerant vapor generated in the high temperature regenerator to the heating side of the medium temperature regenerator; Accepts waste heat from outside, Characterized in that a heat transfer tube for heating the liquid.
- an auxiliary regenerator and an auxiliary absorber are added to a triple effect absorption refrigerator to form a partially low-concentration cycle in the triple effect cycle.
- the steam pressure of the high-temperature regenerator has been reduced.
- an auxiliary regenerator and an auxiliary absorber are added to a triple effect absorption refrigerator, and part or all of the concentrated solution before being supplied to the absorber is heated and concentrated by the auxiliary regenerator.
- the refrigerant vapor generated in the auxiliary regenerator is Absorb in solution to make a low concentration solution.
- the boiling temperature in the auxiliary absorber When the low-concentration solution in the auxiliary absorber is regenerated and concentrated by a low-temperature regenerator, the boiling temperature is reduced by the low concentration of the solution.
- the boiling temperature of the solution in the medium-temperature regenerator decreases, and therefore the steam saturation temperature of the high-temperature regenerator, which is the heat source of the medium-temperature regenerator, decreases. Can be lowered.
- the cycle with the auxiliary regenerator and auxiliary absorber is composed of two cycles, a low concentration cycle and a high concentration cycle.
- the high concentration cycle side absorbs refrigerant vapor from the evaporator with the absorber.
- the low-concentration cycle is an auxiliary cycle that prevents the high-concentration cycle from reaching high temperatures and high pressures.
- the solution supplied to the auxiliary regenerator may be supplied from an absorber, a medium-temperature regenerator or a high-temperature regenerator.
- the solution in the auxiliary regenerator may be returned to the absorber via the medium-temperature regenerator or the high-temperature regenerator or both. The point is that the auxiliary regenerator should be in the high concentration cycle.
- the auxiliary regenerator arranged in the high concentration cycle concentrates the solution, but the refrigerant vapor generated by the auxiliary regenerator does not go to the condenser but is absorbed by the auxiliary absorber at a lower pressure (lower dew point) than the condenser You.
- the solution in the auxiliary regenerator that has absorbed the refrigerant vapor has a low concentration, and when it is regenerated (concentrated) in a low-temperature regenerator, it can be concentrated at a relatively low temperature and the refrigerant vapor can be directly discharged to the condenser.
- the generated steam dew point of the medium-temperature regenerator on the high-concentration side can be lowered, thereby suppressing the refrigerant vapor pressure of the high-temperature regenerator that heats the medium-temperature regenerator. it can.
- FIG. 1 is a flowchart showing an example of the absorption refrigerator of the present invention.
- FIG. 2 is a flow configuration diagram showing another example of the absorption refrigerator of the present invention.
- FIG. 3 is a flow configuration diagram showing still another example of the absorption refrigerator of the present invention.
- FIGS. 4 (a) and 4 (b) are simplified diagrams of the flow configuration diagrams of FIGS. 1 and 2, respectively.
- Fig. 6 (a) is the During diagram of the solution cycle in Fig. 1, and Fig. 6 (b) is the During diagram of the cycle when the auxiliary absorber AX and auxiliary regenerator GX in Fig. 1 are eliminated. is there.
- FIG. 7 is a graph showing the relationship between the refrigerant vapor saturation temperature of the auxiliary absorber AX and the auxiliary regenerator GX, and the solution outlet temperature of the COP and the high-temperature regenerator GH.
- FIGS. 8A and 8B are During diagrams of another solution cycle to which the present invention can be applied.
- FIG. 9 is a flow configuration diagram showing still another example of the absorption refrigerator of the present invention.
- FIG. 10 is a list showing an example of a cycle pattern of a triple effect absorption refrigerator to which the present invention is applied.
- the solution circulation system mainly circulates between the auxiliary absorber GX and the low-temperature regenerator GL as shown in FIG. 1 and FIG.
- Low-concentration solution circulating system and high-concentration solution circulating system that mainly circulates between absorber A, high-temperature regenerator GH, and medium-temperature regenerator GM.
- the pressure (refrigerant saturation temperature) and the solution temperature are to be suppressed.
- an auxiliary absorber AX and an auxiliary regenerator GX are provided in the same circulation system as shown in FIG. 2 and FIG.
- A Absorber A to Auxiliary absorber AX, Low temperature regenerator GL, Auxiliary regenerator GX And the heating capacity of the auxiliary regenerator GX is adjusted.
- the solution circulates between absorber A, high-temperature regenerator GH, and medium-temperature regenerator GM. This cycle is used when the cooling water temperature is decreasing.
- the solid line represents the flow of the solution
- the broken line represents the flow of the refrigerant vapor.
- the solution distribution mechanism V 3 and V 4 in the solution circulation system are adjusted using one device in Fig. 3 (the same as switching if one flow rate is set to zero). This can be realized by adjusting the heating capacity adjustment mechanisms V 1 and V 2 of the auxiliary regenerator GX.
- the cycle can be changed continuously, and the cycle can be adjusted and controlled so that the pressure of the high-temperature regenerator or the solution temperature is kept below the target temperature.
- the refrigerant vapor of the high-pressure stage regenerator is guided to the regenerator one stage below, enabling operation equivalent to double-effect, enabling high-temperature regeneration
- the vessel pressure or solution temperature can be reduced.
- the absorber is divided into a low-pressure absorber and a high-pressure absorber
- the evaporator is divided into a low-pressure evaporator and a high-pressure evaporator. While leading to the low-pressure evaporator, the concentrated solution from the regenerator is first guided to the low-pressure absorber, the refrigerant vapor from the low-pressure evaporator is absorbed, and the solution in which the refrigerant vapor is absorbed by the low-pressure absorber is guided to the high-pressure absorber.
- the system is configured to absorb the refrigerant vapor from the high-pressure evaporator, and the absorber and evaporator are arranged in two stages to reduce the solution concentration in the cycle and reduce the pressure and temperature of the high-temperature regenerator. Therefore, the present invention can be made more effective.
- 1 to 3 are flow configuration diagrams showing a triple effect absorption refrigerator of the present invention.
- E is the evaporator
- A is the absorber
- C is the condenser
- GL is the low temperature regenerator
- GM is the medium temperature regenerator
- GH is the high temperature regenerator
- AX is the auxiliary absorber
- GX is the auxiliary regeneration
- XL 1 and XL 2 are low temperature heat exchanger
- XM is medium temperature heat exchanger
- XH is high temperature heat Exchangers
- SP1, SP2 are solution pumps
- RP is a refrigerant pump
- V1 to V5 are control valves
- 1 to 8 are solution flow paths
- 9 is U-shaped piping
- 10 to 13 are refrigerant vapor flows
- 14 to 16 are refrigerant channels
- 17 is a heat source
- 18 is cold water
- 19 is cooling water.
- the dilute solution of the auxiliary absorber AX is led from the channel 7 to the low-temperature regenerator GL, heated and concentrated by the refrigerant vapor passing through the channels 12, 13 from the medium-temperature regenerator GM, and returned to the auxiliary absorber AX.
- the refrigerant vapor generated in the low-temperature regenerator GL is condensed in the condenser C and returns to the evaporator E from the channel 15.
- the dilute solution in absorber A is sent from channel 1 to auxiliary regenerator GX, medium temperature regenerator GM, and high temperature regenerator GH, respectively.
- the solution sent to the auxiliary regenerator GX is heated and concentrated by the refrigerant vapor from the channels 12 and 13 generated in the medium temperature regenerator GM, and the solution sent to the medium temperature regenerator GM is heated to the high temperature regenerator GH.
- the solution sent to the high-temperature regenerator GH is heated and concentrated by the refrigerant vapor from the flow path 11 generated in the above, while the solution is heated and concentrated by the external heat source 17.
- the concentrated solution returns to absorber A from channels 2, 3, and 4 through channels 5 and 6, respectively, and absorbs the refrigerant vapor from evaporator E.
- Figure 6 (a) shows this cycle on a Düring diagram.
- the refrigerant vapor generated in the high-temperature regenerator GH is represented by CH in Fig. 6 (a) in the saturated state, and serves as a heating source for the medium-temperature regenerator GM.
- the refrigerant vapor generated in the medium-temperature regenerator GM is in the saturated state.
- CM in Fig. 6 (a) condensed as a heating source for the low-temperature regenerator GL and the auxiliary regenerator GX, guided to the condenser C, generated in the low-temperature regenerator GL, and condensed in the condenser C It is led to the evaporator E together with the refrigerant.
- Fig. 6 (b) shows the case where the auxiliary absorber AX and the auxiliary regenerator GX are eliminated, that is, the triple effect cycle is shown on the During diagram.
- Switching between the cycle shown in Fig. 6 (a) and the cycle shown in Fig. 6 (b) is performed by opening and closing the steam valve V1 shown in Fig. 1 and thereby exhibiting / stopping the function of the auxiliary regenerator GX. You can do better. Alternatively, it can also be performed by opening and closing the solution supply amount control valve V2 in FIG. 1, thereby supplying the solution to the auxiliary regenerator GX, and stopping / executing the function of the auxiliary regenerator GX.
- the heating capacity of the auxiliary regenerator GX can be adjusted by adjusting the valve opening of the steam valve V1 or the solution supply amount control valve V2.
- the absorption capacity (including the function stoppage) of the auxiliary absorber AX is adjusted by adjusting the amount of cooling water to the auxiliary absorber AX or adjusting the amount of solution supplied to the auxiliary absorber AX. It can also be adjusted.
- the heating capacity and auxiliary absorption of the auxiliary regenerator GX can be controlled by adjusting the steam valves V1 and Z or the solution supply amount control valve V2, and adjusting the amount of cooling water or solution supplied to the auxiliary absorber AX. It is possible to adjust both the absorption capacity (including shutdown) of the GA.
- FIG. 2 is a flow configuration diagram showing another example of the absorption refrigerator of the present invention.
- auxiliary absorber AX part of the dilute solution from absorber A is sent to auxiliary absorber AX, and the rest is sent to medium-temperature regenerator GM and high-temperature regenerator GH.
- the auxiliary absorber AX absorbs the refrigerant vapor from the flow path 10 when the solution is heated and concentrated in the auxiliary regenerator GX, and becomes further diluted.
- This dilute solution is heated and concentrated by the refrigerant vapor passing through the channels 12 and 13 from the medium-temperature regenerator GM in the low-temperature regenerator GL from the channel 7, and then guided to the auxiliary regenerator GX, It is further heated and concentrated by the refrigerant vapor passing through the channels 12 and 13 from the intermediate temperature regenerator GM.
- the dilute solution from the flow path 1 sent to the intermediate temperature regenerator GM is heated and concentrated using the refrigerant vapor passing through the flow path 11 from the high temperature regenerator GH as a heat source, and the dilute solution sent to the high temperature regenerator GH is Then, it is heated and concentrated by an external heat source 17 and sent to absorber A from flow path 6 together with the concentrated solution concentrated in the auxiliary regenerator GX, and absorbs refrigerant vapor from evaporator E. I do.
- the absorption refrigerator of Fig. 2 As in the absorption refrigerator of Fig. 1, by switching the opening and closing of the steam valve VI, the function of the auxiliary regenerator GX can be switched on / off, and the heating capacity can be adjusted. By adjusting the amount of cooling water or the amount of solution supplied to the auxiliary absorber AX, the absorption capacity (including the function stop) of the auxiliary absorber AX can be adjusted.
- FIG. 3 is a flow configuration diagram showing still another example of the absorption refrigerator of the present invention.
- FIG. 3 shows a cycle of FIG. 1 and FIG. 2 at the solution distribution mechanism valves V 3 and V 4 (or by switching by valves). It can be realized by one device.
- An intermediate cycle is also possible instead of a complete switch. That is, the cycle is established even if the solution is continuously distributed from 0 to 100%.
- the intermediate cycle a part of the dilute solution from the absorber A is flowed to the auxiliary absorber AX by the valve V3, and the remainder is distributed to the auxiliary regenerator GX, and the dilute solution of the auxiliary absorber AX is cooled to a low temperature.
- the concentrate is sent to the regenerator GL, and a part of the concentrated solution is returned to the auxiliary regenerator GX and the remainder to the auxiliary absorber AX by the valve V4.
- the low-temperature regenerator GL transfers to the auxiliary regenerator GX the amount equivalent to the amount of solution sent from the absorber A to the auxiliary absorber AX (almost the same amount with the absorbent). ). Since it is difficult to balance the holdings only by the valves V3 and V4, in Fig. 3, the lower part of the absorber A and the lower part of the auxiliary absorber AX are connected by a U-shaped pipe 9, This allows the solution to flow back and forth while maintaining a balance so that the balance can be maintained.
- the valves V3 and V4 are not three-way valves, but may be a combination of two-way valves.As will be described later, the solution distribution mechanism valves V3 and V4 are used to switch between the cycles shown in FIGS. 1 and 2.
- the heating capacity of the auxiliary regenerator GX can be adjusted by adjusting the opening and closing of the steam valve V1 and / or the solution supply amount adjustment valve V2. Further, the cycle shown in FIG. And the triple utility cycle in which the auxiliary regenerator GX and auxiliary absorber AX are disabled.
- FIGS. 5 (a) to 5 (f) show, on the During diagram, the cycle of the absorption refrigerator shown in FIG. 3 which is changed according to the cooling water temperature.
- the amount of refrigerant vapor introduced from the medium-temperature regenerator GM to the auxiliary regenerator GX is adjusted by the steam valve V1, and the regeneration capacity (heating and concentrating capacity) of the auxiliary regenerator GX is changed.
- the capacity change of the auxiliary regenerator GX can also be performed by the valve V2 in the path bypassing the auxiliary regenerator GX heat transfer section shown by the broken line in FIG.
- Fig. 5 (a) shows the case where the valve VI is fully closed and the capacity of the auxiliary regenerator GX is lost, resulting in a triple effect cycle. Open the valve VI to enhance the capacity of the auxiliary regenerator GX, and reduce the concentration of the dilute solution in the low-temperature regenerator GL, which changes as shown in Figs. 5 (b) to 5 (c). As a result, the temperature of the solution at the outlet of the high-temperature regenerator GH decreases.
- Fig. 7 shows a cycle equivalent to Fig. 1 (separate because the cycle is divided into two groups, so it is displayed as a separate group) and a cycle equivalent to Fig. 2 (absorber, auxiliary absorber, low-temperature regenerator, auxiliary regenerator are circulated in series.
- high COP operation is performed within a range where the cooling water temperature does not decrease and the solution temperature or pressure of the high-temperature regenerator does not increase.
- Figure 5 shows an example of a cycle selected according to the cooling water temperature.
- a target value of the auxiliary regenerator refrigerant saturation temperature is set, and control is performed so that the target value is obtained by the control valve V1, and control of the valves V3 and V4 is performed.
- the distribution can be controlled by adjusting the opening degree at the auxiliary regenerator refrigerant saturation temperature.
- valve V5 If it is desired to lower the temperature of the high-temperature regenerator GH further than in the cycle of FIG. 5 (f), the refrigerant vapor of the high-temperature regenerator GH is bypassed by the valve V5 in FIG. Operation equivalent to utility is possible, and the high-temperature regenerator pressure and solution temperature are reduced. In addition, adjustment of valves VI, V3 and V4 allows for single-effect and double-effect intermediate cycles.
- the same operation can be performed by using a steam valve (not shown) for releasing the refrigerant vapor of the medium-temperature regenerator GM to the condenser C.
- the present invention is also applicable to a two-stage absorption type triple effect absorption refrigerator.
- the absorber A of the absorption chiller is replaced with the low-pressure absorber AL and the high-pressure absorber AH, and the evaporator E is replaced with the low-pressure evaporator.
- the concentrated solution is introduced into the low-pressure absorber AL, absorbs the refrigerant vapor from the low-pressure evaporator EL, and the solution in which the refrigerant vapor is absorbed by the low-pressure absorber AL is introduced into the high-pressure absorber AH, and the refrigerant from the high-pressure evaporator EH Vapor is absorbed, and the solution concentration exiting absorber A can be kept low.
- a part of the solution that has absorbed the refrigerant vapor in the high-pressure absorber AH is sent to the auxiliary absorber AX, and then sent to the low-temperature regenerator GL as a lower concentration, and the boiling temperature is lowered, and finally the solution temperature of the high-temperature regenerator GH
- the required heat source temperature can be reduced.
- Figures 8 (a) and 8 (b) show the cycles showing these examples on a During diagram.
- the medium-temperature regenerator GM, the low-temperature regenerator GL, or the auxiliary regenerator GX according to the present invention includes, in addition to the heating of the high-temperature regenerator GH by the refrigerant vapor, an external heat source having a lower temperature than that supplied to the high-temperature regenerator GH. It is also possible to inject heat, and waste heat can be used effectively. When steam is used as the heat source of the high-temperature regenerator GH, the heat of the steam drain can be used as a type of exhaust heat.
- FIG. 9 is a flowchart showing another embodiment of the present invention using an external heat source.
- This embodiment is different from the absorption refrigerator shown in FIG. 1 in that a heat transfer tube HP for supplying a waste heat from the outside to the intermediate-temperature regenerator GM, the low-temperature regenerator GL, and the auxiliary regenerator GX to heat the solution is provided. Yes, this saves the high-temperature heat source (made by burning fuel etc.) to be injected into the high-temperature regenerator GH.
- the amount of refrigerant vapor when the refrigerant vapor is generated by exhaust heat is G
- the amount of refrigerant vapor generated by the high-temperature regenerator GH can be reduced by about G / 2.5 if the same refrigeration output is to be output. Therefore, it is possible to reduce the amount of high-temperature heat source input to the high-temperature regenerator GH.
- the location where the exhaust heat can be input is provided that the exhaust heat temperature is higher than the solution temperature, but since the exhaust heat is usually lower than the heat source of the high-temperature regenerator, the medium-temperature regenerator GM and the low-temperature regenerator Either GL or auxiliary regenerator GX.
- each regenerator with refrigerant vapor and heating by external exhaust heat is not limited to that shown in FIG. 9, but may be various as follows, for example.
- High temperature regenerator GH Medium temperature regenerator GM, Low temperature regenerator GL, Condenser C, Absorber A, Evaporator E, Auxiliary regenerator GX, Auxiliary absorber AX and triple effect with a route to connect those devices
- An absorption refrigerator that has a high-concentration circulation path that circulates a solution between absorber A, auxiliary regenerator GX, medium-temperature regenerator GM, and high-temperature regenerator GH; It has a low-concentration circulation path for circulating the solution between the hot regenerators GL, a path for guiding the refrigerant vapor generated by the auxiliary regenerator GX to the auxiliary absorber AX, and a low temperature refrigerant refrigerant generated by the medium temperature regenerator GM.
- a triple effect absorption refrigerator having a path leading to the heating side of the Ryoseiki GL and / or the auxiliary regenerator GX and a path leading the refrigerant vapor generated in the high temperature regenerator GH to the heating side of the medium temperature regenerator GM
- the low-temperature regenerator GL and / or the auxiliary regenerator GX can be provided with a heat transfer tube HP for receiving external waste heat and heating the solution.
- the medium temperature regenerator GM can be provided with a heat transfer tube HP for receiving external exhaust heat and heating the solution.
- the waste heat is sensible heat.
- the fluid can be changed, and the fluid can be guided to the low-temperature regenerator GL and then to the auxiliary regenerator GX.
- the intermediate-temperature regenerator GM when the intermediate-temperature regenerator GM is provided with a heat transfer tube HP for receiving external waste heat and heating the solution, the waste heat is used as a fluid that changes sensible heat. After the fluid is led to the medium temperature regenerator GM, it can be led to the low temperature regenerators GL and Z or the auxiliary regenerator GX.
- the high-temperature regenerator GH, the medium-temperature regenerator GM, the low-temperature regenerator GL, the condenser C, the absorber A, the evaporator E, the auxiliary regenerator GX, the auxiliary absorber AX, and a triple having a path for connecting these devices A high-efficiency absorption chiller that has a high-concentration circulation path that circulates a solution between absorber A, auxiliary regenerator GX, medium temperature regenerator GM, and high temperature regenerator GH, and between auxiliary absorber AX and low temperature regenerator GL.
- the heat transfer tube HP to which the exhaust heat from the outside is input is the same as GM, GL, GX, etc. Although described as being provided inside the body, HP may be provided on another can body in parallel or in series with GM, GL, GX, etc.
- a heat exchanger that heats the solution with external waste heat can be installed at a location other than the medium-temperature regenerator GM, low-temperature regenerator GL, and auxiliary regenerator GX.
- a means for demonstrating and stopping the function of the auxiliary regenerator GX and / or the auxiliary absorber AX described above may be provided. It is possible to shut down the high-temperature heat source and operate only with exhaust heat.
- cooling water flows in the order of absorber A, condenser (:, auxiliary absorber AX, but it may flow first in condenser C, or It can be flown in parallel.
- the auxiliary regenerator GX only needs to be on the high-concentration cycle side, and may be in front of, behind, or in parallel with the high-temperature regenerator G H and the medium-temperature regenerator GM.
- FIG. 10 is a list showing an example of a cycle pattern of a triple effect absorption refrigerator to which the present invention is applied.
- the present invention is to add an auxiliary regenerator GX and an auxiliary absorber GA to prevent the high-temperature regenerator GH in the triple effect cycle from increasing in temperature and pressure, and to reduce the pressure or solution temperature in the high-temperature regenerator. It may be combined with any triple effect, and includes all products with an auxiliary regenerator and auxiliary absorber added to the triple effect.
- Figure 10 shows 16 basic patterns S, P, R, SP, PS1, PS2, PS3, PS4, SRI, SR2, RSI, RS2, RP1, RP2, PR1 and PR2 and their deformation patterns are shown.
- the vertical axis is the dew point (DewP 0 int), that is, the saturation temperature with respect to the refrigerant vapor pressure.
- Ax is the concentration of the absorbent solution; represents (C once ⁇ 1 ration), each cycle, the refrigerant system Les c vertical solid lines such Displaying near 0% you are (concentration shows a cycle or 0% solution, The temperature of the solution changes, indicating the dew point equilibrium with the temperature of the solution. The vertical line indicates that the retained heat of the concentrated solution is recovered to the dilute solution side, but this is indicated during the cycle.
- No solid horizontal line indicates concentration change in solution due to concentration or absorption
- Dashed line indicates mixing (rather than a change in concentration along the dashed line, the two solutions mix to form a white circle)
- GH indicates a high-temperature regenerator
- GM indicates a medium-temperature regenerator
- GL indicates a low-temperature regenerator
- GX indicates an auxiliary regenerator
- AX indicates an auxiliary absorber
- A indicates absorption.
- the dilute solution leaving absorber A enters high-temperature regenerator GH and is concentrated.
- the solution leaving the high temperature regenerator GH enters the medium temperature regenerator GM and is concentrated.
- the solution leaving the high temperature regenerator GH enters the medium temperature regenerator GM and is concentrated.
- the medium exiting the regenerator GM enters the auxiliary regenerator GX and is concentrated.
- the concentrated solution that has exited the auxiliary regenerator GX enters the absorber A, absorbs the refrigerant, and decreases in concentration.
- the solution leaving the medium-temperature regenerator GM enters the auxiliary regenerator GX and is concentrated.
- the concentrated solution that has exited the auxiliary regenerator GX enters the absorber A, absorbs the refrigerant, and decreases in concentration.
- the mixed solution is concentrated in the auxiliary regenerator GX. (Horizontal solid line)
- the concentrated solution exiting the auxiliary regenerator GX enters the absorber A and absorbs the refrigerant to lower the concentration. (Horizontal line)
- the mixed solution is concentrated in the medium temperature regenerator GM. (Horizontal solid line)
- the white circle at the right end of the broken line is the mixture concentration.
- the mixed solution is concentrated in the auxiliary regenerator GX. (Horizontal solid line)
- the concentrated solution exiting the auxiliary regenerator GX enters the absorber A and absorbs the refrigerant to lower the concentration. (Horizontal solid line)
- Part of the dilute solution exiting the absorber A branches at the small black circle and is sent to the low-temperature regenerator GL, and part of the remaining part is branched at the upper black circle and sent to the medium-temperature regenerator GM. The remainder is sent to the high-temperature regenerator GH.
- the solution in the high-temperature regenerator GH is concentrated.
- the solution exiting the high-temperature regenerator GH is mixed with the dilute solution sent to the medium-temperature regenerator GM, enters the medium-temperature regenerator GM as a mixed concentration of white small circles, and is concentrated. (Horizontal solid line)
- the solution exiting the medium-temperature regenerator GM is mixed with the dilute solution sent to the auxiliary regenerator GX, becomes a mixed concentration of white small circles, enters the auxiliary regenerator GX, and is concentrated. (Horizontal solid line)
- the concentrated solution exiting the auxiliary regenerator GX enters the absorber A and absorbs the refrigerant to lower the concentration. (Horizontal solid line)
- Part of the dilute solution exiting absorber A branches off at the small black circle at the outlet of the absorber and is sent to the low-temperature regenerator GL. It is sent to GM, and the rest is sent to the high-temperature regenerator GH.
- the solution exiting the high-temperature regenerator GH is mixed with the dilute solution sent to the medium-temperature regenerator GM, enters the medium-temperature regenerator GM as a mixed concentration of white small circles, and is concentrated. (Horizontal solid line)
- the concentrated solution exiting the medium-temperature regenerator GM and the auxiliary regenerator GX enters the absorber A, where it absorbs the refrigerant and decreases in concentration. (Horizontal solid line)
- Part of the dilute solution exiting absorber A branches off at the small black circle at the outlet of the absorber and is sent to the medium temperature regenerator GM. It is sent to GL and the rest is sent to the high-temperature regenerator GH.
- the solution exiting the high-temperature regenerator GH is mixed with the dilute solution sent to the auxiliary regenerator GX, enters the auxiliary regenerator GX as a mixed concentration of white small circles, and is concentrated. (Horizontal solid line)
- the concentrated solution exiting the medium-temperature regenerator GM and the auxiliary regenerator GX enters the absorber A and absorbs the refrigerant And the concentration decreases. (Horizontal solid line)
- the dilute solution exiting the absorber A branches at the small black circle at the outlet of the absorber, and a part is sent to the low-temperature regenerator GL, another part is sent to the medium-temperature regenerator GM, and the rest is sent to the high-temperature regenerator GH. Sent.
- the concentrated solution exiting the high-temperature regenerator GH, medium-temperature regenerator GM, and auxiliary regenerator GX enters absorber A, where it absorbs refrigerant and decreases in concentration. (Horizontal solid line)
- the dilute solution leaving the absorber A is sent to the low-temperature regenerator GL, where it is concentrated.
- the solution leaving the auxiliary regenerator GX is sent to the medium-temperature regenerator GM, where it is further concentrated. (Horizontal solid line)
- the solution exiting the medium-temperature regenerator GM is sent to the high-temperature regenerator GH, where it is further concentrated. (Horizontal solid line)
- the concentrated solution exiting the high-temperature regenerator GH enters the absorber A, absorbs the refrigerant, and decreases in concentration. (Horizontal solid line)
- the dilute solution leaving the absorber A is sent to the low-temperature regenerator GL, where it is concentrated.
- the solution exiting the auxiliary regenerator GX is sent to the medium temperature regenerator GM, where it is concentrated. (Horizontal solid line)
- the remainder of the solution leaving the medium temperature regenerator GM is mixed with the solution concentrated in the high temperature regenerator GH.
- the mixed solution enters absorber A, absorbs the refrigerant, and decreases in concentration. (Horizontal solid line) (3) R cycle (middle and lower):
- the dilute solution leaving the absorber A is sent to the low-temperature regenerator GL, where it is concentrated.
- Most of the solution leaving the auxiliary regenerator GX is sent to the medium-temperature regenerator GM, where it is concentrated. (Horizontal solid line)
- the solution exiting the medium-temperature regenerator GM is sent to the high-temperature regenerator GH, where it is further concentrated. (Horizontal solid line)
- the dilute solution leaving the absorber A is sent to the low-temperature regenerator GL, where it is concentrated.
- Most of the solution leaving the auxiliary regenerator GX is sent to the medium temperature regenerator GM, where it is concentrated. (Horizontal solid line)
- the remainder of the solution exiting the medium-temperature regenerator GM is mixed with the solution concentrated in the high-temperature regenerator GH, and further mixed with the remainder of the solution exiting the auxiliary regenerator GX.
- the mixed solution enters absorber A, absorbs the refrigerant, and decreases in concentration. (Horizontal solid line) Other cycles are also combinations of solution branching, concentration, and mixing. The list shows that there are many possible types.
- the mixed solution is introduced from the inlet of the high-temperature regenerator GH, medium-temperature regenerator GM, and low-temperature regenerator GL, but one solution is introduced from the inlet and the other is The solution can be introduced from the middle.
- the absorption refrigerator described above by adopting the absorption refrigerator described above, an intermediate cycle between double effect and triple effect is enabled, and the pressure or the solution temperature of the high-temperature regenerator can be set to a predetermined value or less.
- Heat source temperature, cooling water temperature conditions, or Depending on the cold water temperature conditions, etc. a triple-effect absorption refrigerator that could change continuously from an intermediate cycle to a triple-effect cycle, rather than stepwise, could be obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005501948A JP4242866B2 (ja) | 2002-09-27 | 2003-06-25 | 吸収冷凍機 |
US10/529,209 US7225634B2 (en) | 2002-09-27 | 2003-06-25 | Absorption refrigerating machine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002283029 | 2002-09-27 | ||
JP2002-283029 | 2002-09-27 | ||
JP2002-293393 | 2002-10-07 | ||
JP2002293393 | 2002-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004029524A1 true WO2004029524A1 (ja) | 2004-04-08 |
Family
ID=32044633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008040 WO2004029524A1 (ja) | 2002-09-27 | 2003-06-25 | 吸収冷凍機 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7225634B2 (ja) |
JP (1) | JP4242866B2 (ja) |
WO (1) | WO2004029524A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017048935A (ja) * | 2015-08-31 | 2017-03-09 | 日立ジョンソンコントロールズ空調株式会社 | 吸収式冷凍機 |
WO2018056024A1 (ja) * | 2016-09-23 | 2018-03-29 | 日立ジョンソンコントロールズ空調株式会社 | 吸収式冷凍機 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101544221B1 (ko) * | 2007-03-07 | 2015-08-12 | 유니버시티 오브 뉴 올리언스 리써치 앤 테크놀로지 파운데이션 인코포레이티드 | 통합형 냉각, 가열 및 전력공급 시스템 |
CN101324384A (zh) * | 2008-07-25 | 2008-12-17 | 李华玉 | 在第一类吸收式热泵上增加相邻高温供热端的方法 |
CN101694332A (zh) * | 2009-09-28 | 2010-04-14 | 李华玉 | 回热式三效第一类吸收式热泵 |
CN101696832A (zh) * | 2009-09-28 | 2010-04-21 | 李华玉 | 回热式双效第一类吸收式热泵 |
AT12048U1 (de) * | 2010-03-23 | 2011-09-15 | Stefan Ing Petters | Vorrichtung zur übertragung von wärme |
CN101818960B (zh) * | 2010-04-28 | 2012-03-21 | 李华玉 | 双蒸发器多端供热第一类吸收式热泵 |
CN102116538B (zh) * | 2011-03-06 | 2012-08-29 | 李华玉 | 带有回热供热端的双效与三效第一类吸收式热泵 |
CN102706026B (zh) * | 2012-03-23 | 2014-12-03 | 李华玉 | 双效回热吸收-发生系统与回热式第一类吸收式热泵 |
CN107388618B (zh) * | 2016-06-27 | 2019-12-13 | 李华玉 | 热动联供系统 |
CN107270575B (zh) * | 2016-06-27 | 2019-12-13 | 李华玉 | 热动联供系统 |
CN107421159B (zh) * | 2016-06-27 | 2019-12-13 | 李华玉 | 热动联供系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0555787B2 (ja) * | 1984-02-01 | 1993-08-17 | Hitachi Ltd | |
JP2000171119A (ja) * | 1998-12-08 | 2000-06-23 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000205691A (ja) * | 1999-01-06 | 2000-07-28 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3175371A (en) * | 1955-11-25 | 1965-03-30 | Harwich Stanley | Refrigeration process and apparatus for the same |
US3550394A (en) * | 1968-11-06 | 1970-12-29 | Trane Co | Condensate heating of intermediate strength solution in two-stage absorption machine |
US3495420A (en) * | 1968-12-20 | 1970-02-17 | Trane Co | Two stage generator absorption unit with condensate heat exchanger |
US3651654A (en) * | 1970-08-10 | 1972-03-28 | Carrier Corp | Control system for multiple stage absorption refrigeration system |
US3721109A (en) * | 1971-06-03 | 1973-03-20 | Trane Co | High pressure multiple pump for absorption refrigeration machine |
US3710852A (en) * | 1971-09-24 | 1973-01-16 | Trane Co | Double effect absorption heating and cooling system |
JPS5281743A (en) * | 1975-12-29 | 1977-07-08 | Ebara Corp | Double use absorption refrigerating apparatus |
JPS5913670B2 (ja) * | 1977-03-22 | 1984-03-31 | 株式会社荏原製作所 | 二重効用吸収冷凍装置 |
JPS5956066A (ja) * | 1982-09-22 | 1984-03-31 | 株式会社日立製作所 | 密閉循環型吸収式冷凍機 |
US4570456A (en) * | 1984-11-13 | 1986-02-18 | The United States Of America As Represented By The United States Department Of Energy | Direct fired heat exchanger |
JP2810558B2 (ja) * | 1991-04-23 | 1998-10-15 | 言彦 世古口 | 再生器 |
JP2990880B2 (ja) | 1991-08-28 | 1999-12-13 | 松下電器産業株式会社 | 基板搬送用ガイドレールの自動幅寄方法 |
JP2727278B2 (ja) * | 1992-06-30 | 1998-03-11 | 東京瓦斯株式会社 | 吸収冷凍機用発生器 |
JP3262642B2 (ja) * | 1993-06-08 | 2002-03-04 | 株式会社荏原製作所 | 吸収冷温水機用再生器 |
JP3393780B2 (ja) * | 1997-01-10 | 2003-04-07 | 本田技研工業株式会社 | 吸収式冷暖房装置 |
-
2003
- 2003-06-25 US US10/529,209 patent/US7225634B2/en not_active Expired - Fee Related
- 2003-06-25 JP JP2005501948A patent/JP4242866B2/ja not_active Expired - Fee Related
- 2003-06-25 WO PCT/JP2003/008040 patent/WO2004029524A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0555787B2 (ja) * | 1984-02-01 | 1993-08-17 | Hitachi Ltd | |
JP2000171119A (ja) * | 1998-12-08 | 2000-06-23 | Ebara Corp | 三重効用吸収冷凍機 |
JP2000205691A (ja) * | 1999-01-06 | 2000-07-28 | Kawasaki Thermal Engineering Co Ltd | 吸収冷凍機 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017048935A (ja) * | 2015-08-31 | 2017-03-09 | 日立ジョンソンコントロールズ空調株式会社 | 吸収式冷凍機 |
WO2018056024A1 (ja) * | 2016-09-23 | 2018-03-29 | 日立ジョンソンコントロールズ空調株式会社 | 吸収式冷凍機 |
Also Published As
Publication number | Publication date |
---|---|
US20060053829A1 (en) | 2006-03-16 |
JPWO2004029524A1 (ja) | 2006-01-26 |
US7225634B2 (en) | 2007-06-05 |
JP4242866B2 (ja) | 2009-03-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004029524A1 (ja) | 吸収冷凍機 | |
US5157942A (en) | Regenerative absorption cycles with multiple stage absorber | |
JP2782555B2 (ja) | 吸収ヒートポンプ | |
CN108139126B (zh) | 吸收式冷冻机 | |
JP2009236369A (ja) | 吸収冷温水機 | |
CN104180555A (zh) | 一种冷双效型溴化锂喷射吸收式制冷循环系统 | |
JP2019035561A (ja) | 吸収式熱交換システム | |
WO2018150516A1 (ja) | 吸収式冷凍機 | |
CN101694331A (zh) | 单级基础上的复合第二类吸收式热泵 | |
WO2002018850A1 (en) | Absorption refrigerating machine | |
KR20080094985A (ko) | 온수 이용 흡수식 냉동장치 | |
JP4376788B2 (ja) | 吸収冷凍機 | |
JPH0552439A (ja) | 吸収ヒートポンプ | |
JP4175612B2 (ja) | 一二重効用吸収冷温水機 | |
JP4212083B2 (ja) | 排熱投入型一二重効用吸収冷温水機 | |
JP6907438B2 (ja) | 吸収式熱交換システム | |
JP2007127341A (ja) | 吸収ヒートポンプおよび蒸気供給システム | |
CN100380069C (zh) | 吸收式冷冻机 | |
JP2010043811A (ja) | 吸収冷温水機 | |
JP2009287806A (ja) | 吸収冷凍機 | |
JP2004085049A (ja) | 排熱投入型吸収冷温水機とその運転方法 | |
JP2009085508A (ja) | 吸収式冷凍機 | |
JPH0464871A (ja) | 吸収ヒートポンプ | |
JP2006170611A (ja) | 吸収式冷凍装置 | |
JP2017048935A (ja) | 吸収式冷凍機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN JP KR US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005501948 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 2006053829 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10529209 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038246740 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 10529209 Country of ref document: US |