JP2001050604A - Absorption water cooler/heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve exhaust heat utilization efficiency and overall efficiency of an absorption water cooler/heater, having an exhaust heat burning regenerator by raising the temperature level of an absorbing liquid which flows to the high-temperature solution heat exchanger and the high-temperature regenerator from the exhaust heat burning regenerator. SOLUTION: In an absorption water cooler/heater provided with an absorber 22, a condenser 50, an evaporator 52, a high-temperature regenerator 44, and a low-temperature regenerator 48, an exhaust heat burning regenerator 30 is connected to a solution line, through which an absorbing liquid flows and a first exhaust-heat heat exchanger 40 which throws exhaust heat into the absorbing liquid flowing through a solution line, through which an absorbing liquid partially regenerated by heating by means of the regenerator 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption chiller / heater, and more particularly to an absorption chiller / heater having an exhaust heat regenerator.

[0002]

2. Description of the Related Art FIG. 42 shows a conventional absorption chiller / heater constructed as a so-called "series flow" type. In FIG. 42, the dilute solution sent from the absorber 22 by the pump 24 flows through the dilute solution line L1, and flows into the exhaust heat regenerator 30 via the low-temperature solution heat exchanger 26. In the exhaust heat regenerator 30, regeneration is performed by the amount of heat held by the exhaust heat holding fluid (for example, hot waste water) flowing through the exhaust heat line L <b> 2, and a head is added to the regenerated solution by the pump 32. Then, the solution to which the head is added by the pump 32 is sent to the high temperature regenerator 44 via the high temperature solution heat exchanger 42.

In the high-temperature regenerator 44, heating with high-quality fuel such as a gas (for example, heating by a burner 46) is performed, and the generated refrigerant vapor (steam) flows through a vapor line L11, and passes through a low-temperature regenerator 48. Through the condenser 50
(First condenser). And the low-temperature regenerator 48
In, the absorbing solution is regenerated by the amount of heat held by the steam. The refrigerant vapor generated in the exhaust heat-fired regenerator 30 flows into the condenser 50 via the line L13,
Refrigerant vapor generated in the condenser 5 through the line L15
Flows into zero.

[0004] The absorption solution (intermediate concentration solution) heated and condensed by the high temperature regenerator 44 flows into the low temperature regenerator 48 through the intermediate concentration solution line L3, and is heated and regenerated by the low temperature regenerator 48. It flows through the high-concentration solution line L4 and returns to the absorber 22 via the low-temperature solution heat exchanger 26.

The liquid-phase refrigerant condensed in the condenser 50 flows through the line L5 and is supplied to the evaporator 52. Refrigerant vapor evaporated by removing vaporization heat from cold water flowing through a cold water line (not shown) in the evaporator 52 flows through the line L17 and flows through the absorber 2
Flow into 2.

[0006] The characteristics of the absorption chiller / heater of FIG. 42 are shown by the During diagram of FIG. 43. In the During diagram of FIG. 43, the range between the point Wg and the point H1 is the heating / regeneration process by the exhaust heat regenerator 30, and the region from the point H1 to the point H2 is the heating process by the high temperature solution heat exchanger 42. It is. The temperature Wht indicated by the dotted line indicates the exhaust heat temperature. However, in the prior art of FIG.
Since the concentration of the dilute solution flowing through 1 has shifted to the lower side,
The concentration of the absorbing solution exiting the exhaust heat-fired regenerator 30 and going to the high-temperature regenerator 44 is also low, and the temperature level is low. In other words, in the prior art of FIG. 42, the absorption solution (dilute solution) having a low temperature level that has exited the exhaust heat regenerator 30 is directly injected into the high temperature solution heat exchanger 42 or the high temperature regenerator 44. In addition, the efficiency of the absorption chiller / heater decreases.

In FIG. 43 which is a During diagram showing the operation of the absorption chiller / heater according to the prior art of FIG.
As described above, after being heated by the exhaust heat regenerator (point H
1) Heating is performed by the high-temperature solution heat exchanger 42 by a temperature rise corresponding to a region between the point H1 and the point H2. Then, the amount of heat required to reach a region higher in temperature than the point H2 (reproduction region in the high-temperature regenerator 44) must be supplied by the high-temperature regenerator. Therefore, in order to reduce the consumption of high-quality fuel in the high-temperature regenerator, it is necessary to shift the point H2 as high as possible. However, in the prior art of FIG. 42, as described above, since the temperature level of the absorbing solution that exits the exhaust heat-fired regenerator 30 and travels to the high-temperature regenerator 44 is low, it is difficult to shift the point H2 to the high-temperature side. is there.

FIG. 44 shows another type of prior art different from FIG. In this prior art, a waste heat exchanger 60 is interposed in a region L1-A between the low-temperature solution heat exchanger 26 and the waste heat regenerator 30, and a region L2 of the waste heat line L2 is provided.
The amount of heat held by the hot wastewater flowing through O (the portion through which the hot wastewater heated by the exhaust heat heating regenerator 30 flows) is determined by the area L1
-A is poured into the flowing dilute solution. Thus, the temperature of the diluted solution flowing into the exhaust heat regenerator 30 is increased.

However, even in the prior art shown in FIG. 44, the temperature level of the absorbing solution that exits the waste heat regenerator 30 and travels to the high temperature regenerator 44 is low, and it is difficult to shift the point H2 to the high temperature side.

[0010]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems of the prior art, and is an absorption chiller / heater having an exhaust heat-fired regenerator. Provide an absorption chiller / heater that can raise the temperature level of the absorbing solution exiting to the high temperature solution heat exchanger and high temperature regenerator to improve the waste heat utilization efficiency and the efficiency of the entire absorption chiller / heater. It is intended to be.

[0011]

The absorption chiller / heater of the present invention comprises an absorber (22), a condenser (50), and an evaporator (5).
2) In an absorption chiller / heater provided with a high-temperature regenerator (44) and a low-temperature regenerator (48), a waste-heat regenerator (30) is interposed in a solution line through which an absorbing solution flows, and A first exhaust heat exchanger (40) for supplying exhaust heat to the absorbing solution flowing through the solution line is provided in the solution line through which the absorbing solution heated and partially regenerated by the heat-fired regenerator (30) flows. It is characterized by being interposed.

According to the absorption chiller / heater of the present invention having such a configuration, the absorption solution heated by the waste heat regenerator is further heated in the first waste heat exchanger and discharged into the absorption solution. Since heat is supplied, the temperature level of the absorbing solution heated by the exhaust heat regenerator shifts to a higher temperature side. Then, the efficiency of using the exhaust heat is much improved as compared with the conventional technology. As a result, according to the present invention, the amount of heating in the high-temperature regenerator can be reduced, and the consumption of high quality fuel is reduced, so that the efficiency of the absorption chiller / heater is improved.

In the present invention, the exhaust heat regenerator (3)
It is preferable that a second exhaust heat exchanger (60) for supplying exhaust heat to the absorbing solution flowing through the solution line is provided in the solution line for supplying the absorbing solution in communication with 0). (FIG. 3,
5, 7, 9, 11, 13, 15, 17, 19, 21, 2
3, 25, 27, 29, 31, 33, 35, 37, 3,
9, 41)

According to the present invention having such a configuration, the temperature of the absorbing solution in the exhaust heat-fired regenerator increases, and the amount of regenerated steam increases. At the same time, the amount of heat held by the hot waste water after the waste heat is supplied by the waste heat regenerator will be injected into the absorbing solution circulating the absorption cold and hot water, so the utilization efficiency of the waste heat is extremely high. In other words, the efficiency of the entire absorption chiller / heater is also improved.

In carrying out the present invention, the absorption chiller / heater can be configured such that the absorption solution discharged from the absorber flows into the low-temperature regenerator via the high-temperature regenerator (FIGS. 1, 3). -5, 22-25). In other words, the present invention is applicable to a so-called series flow type absorption chiller / heater.

In the absorption chiller / heater, the solution line in which the dilute solution flowing from the absorber flows branches into a solution line communicating with the high-temperature regenerator and a solution line communicating with the low-temperature regenerator. The solution line in which the absorption solution heated in step (1) flows and the solution line in which the absorption solution heated by the low-temperature regenerator flows can be merged and connected to the absorber (FIGS. 6-9 and FIG. 6). 26-29). In other words, the present invention can be applied to a so-called parallel flow type absorption chiller / heater.

Further, the absorption chiller / heater can be configured so that the absorption solution discharged from the absorber flows into the high-temperature regenerator after passing through the exhaust heat regenerator and the low-temperature regenerator. 10, 11, 30, 31). In other words, the present invention is applicable to a so-called reverse flow type absorption chiller / heater.

In the absorption chiller / heater, the solution line in which the absorption solution flows through the exhaust heat regenerator and the low temperature regenerator branches into a solution line communicating with the high temperature regenerator and a solution line returning to the absorber. (FIG. 12,
13, 32, 33). In other words, the present invention is applicable to a so-called reverse parallel flow type absorption chiller / heater.

In addition to the above, in the absorption chiller / heater, the solution line in which the diluted solution flowing from the absorber flows branches into a solution line communicating with the high-temperature regenerator and a solution line communicating with the low-temperature regenerator. The solution line in which the absorption solution heated by the high-temperature regenerator flows can be configured to communicate with the low-temperature regenerator (FIGS. 14-19 and 34-39). In other words, the present invention is applicable to a so-called series / parallel flow type absorption chiller / heater.

Further, according to the present invention, the first condenser (50) into which the refrigerant from the high-temperature regenerator and the refrigerant vapor generated by the low-temperature regenerator flow, and the refrigerant vapor generated by the waste heat regenerator flow into the first condenser (50). It can be configured to have a second condenser (70) (FIGS. 20, 21, 40, 41). According to the present invention having such a configuration, by providing the second condenser, the regeneration efficiency in the waste heat regenerator 30 is improved,
Waste heat utilization efficiency is improved.

In practicing the present invention, an absorber (22L,
22H) and the evaporators (52L, 52H) may be divided into a plurality of stages (for example, two stages) (FIG. 22-4).
1). Thus, by dividing the lower body into a plurality of stages (for example, two stages), the efficiency of the absorption chiller / heater can be further improved.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described below with reference to FIGS. In the illustrated embodiment, the same members as those described above are denoted by the same reference numerals.

In FIG. 1, the absorption type chiller / heater of the present invention, which is generally designated by reference numeral 20, is configured as a so-called "series flow" type. The dilute solution sent from the absorber 22 by the pump 24 flows through the dilute solution line L1 and flows into the waste heat regenerator 30 via the low temperature solution heat exchanger 26. In the exhaust heat regenerator 30, regeneration is performed by the amount of heat held by the exhaust heat holding fluid (for example, hot waste water) flowing through the exhaust heat line L <b> 2, and a head is added to the regenerated solution by the pump 32.

The solution to which the head is added by the pump 32 is held by a waste heat holding fluid (for example, hot waste water) flowing through the waste heat line L2A in the waste heat exchanger 40 (first waste heat exchanger). A calorie is input (sensible heat-sensible heat exchange). Here, the exhaust heat line L2 and the exhaust heat line L2A are
Exhaust heat line through which hot waste water from the same exhaust heat source flows, and is at the same temperature level. The solution to which the exhaust heat has been input by the exhaust heat exchanger 40 is sent to the high temperature regenerator 44 via the high temperature solution heat exchanger 42.

In the high-temperature regenerator 44, heating with a high-quality fuel such as a gas (for example, heating by a burner 46) is performed, and the generated refrigerant vapor (steam) flows through the vapor line L11 and the low-temperature regenerator 48 Through the condenser 50. Then, in the low-temperature regenerator 48, the absorbing solution is regenerated by the amount of heat held by the steam. Note that the refrigerant vapor generated in the exhaust heat regenerator 30 flows into the condenser 50 via the line L13, and the refrigerant vapor generated in the low temperature regenerator 48 flows into the condenser 50 via the line L15.

The absorption solution (intermediate concentration solution) heated and condensed in the high temperature regenerator 44 flows into the low temperature regenerator 48 through the intermediate concentration solution line L3. The amount of heat held by this solution is supplied by the high-temperature solution heat exchanger 42 to the absorbing solution flowing through the dilute solution line L1. And the low-temperature regenerator 48
The absorption solution (high-concentration solution) heated and regenerated in the above flows through the high-concentration solution line L4, and is returned to the absorber 22 via the low-temperature solution heat exchanger 26.

In FIG. 1, a line L5 is a liquid-phase refrigerant line for supplying the liquid-phase refrigerant condensed in the condenser 50 to the evaporator 52. The line L <b> 17 is a refrigerant vapor line in which refrigerant vapor evaporated by removing vaporization heat from the cold water flowing through the cold water line (not shown) in the evaporator 52 flows, and communicates with the absorber 22.

According to the embodiment shown in FIG.
After the absorption solution heated and regenerated at 0 is heated or subjected to sensible heat-sensible heat exchange (by the exhaust heat of the exhaust heat line L2A) in the exhaust heat exchanger 40, it is heated in the high temperature solution heat exchanger 42. Then, it flows into the high temperature regenerator 44. Here, as described above, in the absorption chiller / heater 20 of FIG. 1 including the exhaust heat regenerator 30, the concentration of the dilute solution flowing in the line L1 is shifted to a lower concentration, and the exhaust heat regenerator 30 is Come out and high temperature regenerator 4
The concentration of the absorbing solution going to 4 is also lower and the temperature level is lower. Then, the absorbing solution (dilute solution) having a low temperature level that has exited the exhaust heat regenerator 30 is transferred to the high-temperature solution heat exchanger 4.
2, the efficiency of the absorption chiller / heater is reduced. On the other hand, in the embodiment of FIG. 1, the absorbing solution heated by the exhaust heat regenerator 30 is:
It is heated in the exhaust heat exchanger 40. Here, as described above, since the temperature level of the absorbing solution that has exited the exhaust heat regenerator 30 is relatively low, a large amount of hot exhaust water is discharged from the exhaust heat line L2A into the dilute solution via the exhaust heat exchanger 40. Heat is applied. As a result, the temperature level of the absorbing solution heated and partially regenerated by the waste heat regenerator increases. At the same time, the efficiency of waste heat utilization is significantly improved as compared with the prior art.

In order to further clarify the above-mentioned effects, FIG. 42 is a During diagram showing the operation of the conventional absorption chiller / heater of FIG. 42, and FIG. 43 is an absorption chiller / heater of the embodiment of FIG. The operation will be described in comparison with FIG. 2 which is a During diagram for explaining the operation of FIG.

In FIG. 43 showing the operation of the conventional absorption chiller / heater, an area between the point Wg and the point H1 on the During diagram is an area heated by the exhaust heat regenerator 30. In the conventional absorption chiller / heater shown in FIG. 43, after being heated by the exhaust heat regenerator (point H1), the high-temperature solution is heated by an amount corresponding to the temperature rise corresponding to the area between points H1 and H2. Heated by the heat exchanger 42. Then, the amount of heat required to reach a region higher in temperature than the point H2 (reproduction region in the high-temperature regenerator 44) is heated by the high-temperature regenerator.

On the other hand, in the absorption chiller / heater of FIG. 1,
On the Düring diagram of FIG. 2, after the region between the point Wg and the point W1 is heated by the exhaust heat regenerator 30,
A point W1 corresponding to the exhaust heat regenerator outlet temperature and an exhaust heat temperature W
The amount of heat corresponding to the region between the point H1P corresponding to ht is input by the exhaust heat exchanger 40 (FIG. 1). What is heated by the high-temperature solution heat exchanger 42 (FIG. 1)
A point heated by the exhaust heat exchanger 40 (point H1P);
This is the area between 2P. That is, the exhaust heat exchanger 40
In the embodiment of FIG. 1, only the heat amount corresponding to the area between the point W1 and the point H1P which is the area heated by
The temperature level (of the absorbing solution heated at 0) rises, effectively utilizing waste heat. As a result, the high-temperature regenerator 4
In step 4, the amount of heat to be heated is reduced, and the efficiency of the absorption chiller / heater is improved.

The absorption chiller / heater shown in FIG.
This is according to the embodiment. The second embodiment has substantially the same configuration as the absorption chiller / heater 20 according to the first embodiment described with reference to FIGS. However, in FIG. 3, a second exhaust heat exchanger 60 is interposed in a region L1-A of the dilute solution line L1 between the low temperature solution heat exchanger 26 and the exhaust heat regenerator 30. And the second exhaust heat exchanger 6
0 is an exhaust heat line L2 (more specifically, an exhaust heat regenerator 3
It is provided so that the amount of heat possessed by the hot wastewater flowing through the region L2O) through which the hot wastewater flows after being heated at 0 is supplied to the dilute solution flowing through the region L1-A.

As a result of providing the second exhaust heat exchanger 60, the temperature of the absorbing solution in the exhaust heat regenerator 30 increases, and the amount of regenerated steam increases. At the same time, the amount of heat held by the hot waste water after the waste heat is supplied by the waste heat regenerator 30 is further input to the diluted solution, so that the utilization efficiency of the waste heat becomes extremely high, and the absorption chiller / heater is used. Overall efficiency is also improved. Other configurations and operational effects are the same as those of the first embodiment.

FIG. 4 shows an absorption chiller / heater according to a third embodiment of the present invention. In the absorption chiller / heater shown in FIGS. 1 to 3, the waste heat regenerator 30 and the waste heat exchanger 40 are interposed in a dilute solution line L <b> 1 through which the dilute solution flows from the absorber 22 to the high temperature regenerator 44. Have been. On the other hand, in the embodiment of FIG. 4, the absorption solution heated and concentrated by the high-temperature regenerator 44 flows through the solution line L3 and is supplied to the exhaust heat regenerator 30. The absorbing solution that has flowed into the exhaust heat regenerator 30 is regenerated and concentrated by the exhaust heat input from the exhaust heat line L2, flows through the solution line L4, and flows into the low temperature regenerator 48. Here, a waste heat exchanger 40 (first waste heat exchanger) is interposed in the solution line L4, and is connected to the waste heat line L2A (a waste heat line having the same temperature level as the waste heat line L2). The absorption solution flowing through the solution line L4 is heated by the supplied heat amount (sensible heat-sensible heat exchange).

According to the third embodiment, similarly to the first embodiment, the waste heat can be effectively used by the amount of heat input through the waste heat exchanger 40, and the absorption cold / hot water can be used. The efficiency of the machine is improved accordingly. Other configurations and operational effects are the same as those of the first embodiment.

FIG. 5 shows a fourth embodiment of the present invention. The fourth embodiment shown in FIG. 5 has substantially the same configuration as the third embodiment of FIG. In FIG. 5, in the solution line L3, the high-temperature solution heat exchanger 42 and the waste heat regenerator 30
A second exhaust heat exchanger 60 is interposed in a region L3-1 between the first and second heat exchangers. The second exhaust heat exchanger 60 outputs the amount of heat held by the hot wastewater flowing through the area indicated by the reference symbol L2O of the exhaust heat line L2 (the area through which the hot wastewater heated by the exhaust heat regenerator 30 flows). , Into the absorbing solution flowing through the region L3-1 of the solution line L3.

As a result of providing the second exhaust heat exchanger 60, the temperature of the absorbing solution in the exhaust heat regenerator 30 increases, and the amount of regenerated steam increases. At the same time, the amount of heat held by the hot waste water after the waste heat is supplied by the waste heat regenerator 30 is further input into the absorbing solution, so that the utilization efficiency of the waste heat is further improved, and the absorption chiller / heater is used. Overall efficiency is also improved. Other configurations and operation effects are the same as those of the embodiment of FIG.

FIGS. 1 to 5 show an embodiment in which the present invention is applied to a so-called "series flow" type absorption chiller / heater. 6 to 9 show an embodiment in which the present invention is applied to a so-called "parallel flow" type absorption chiller / heater.

FIG. 6 shows a fifth embodiment of the present invention. The dilute solution that has flowed out of the absorber 22 has a head added by a pump 24, flows through a dilute solution line L1, passes through a low-temperature solution heat exchanger 26, and then, at a branch point P1, a line L1 that communicates with a high-temperature regenerator 44. -1, and the exhaust heat regenerator 3
It branches to a line L1-2 communicating with 0. Line L1
The diluted solution flowing through -1 flows into the high-temperature regenerator 44 through the high-temperature solution heat exchanger 42, and is heated and concentrated, and then flows through the solution line L3.

The dilute solution flowing through the line L1-2 is heated, regenerated, and concentrated by the exhaust heat input from the exhaust heat line L2 in the exhaust heat regenerator 30, and the solution line L1
-22 flows into the low-temperature regenerator 48. here,
An exhaust heat exchanger 40 (first exhaust heat exchanger) is interposed in the solution line L1-22, and the exhaust heat exchanger 40 includes:
Exhaust heat flowing through the exhaust heat line L2A (exhaust heat at the same temperature level as the exhaust heat line L2) is supplied to the absorbing solution flowing through the solution line L1-22 and heated. As a result, the temperature of the absorbing solution flowing into the low-temperature regenerator 48 increases, and the amount of regenerated steam increases.

The absorption solution heated, regenerated and concentrated in the low-temperature regenerator 48 flows through the solution line L1-23,
1-23 merges with the solution line L3 from the high temperature regenerator 44 at the junction P2 to form a solution line L4, and returns to the absorber 22.

According to this embodiment, the temperature of the absorbing solution flowing into the low-temperature regenerator 48 increases, and the amount of regenerated steam increases. Further, the efficiency of waste heat utilization and the efficiency of the entire absorption chiller / heater increase. Other configurations and operational effects are the same as those of the first embodiment.

FIG. 7 shows a sixth embodiment of the present invention. The sixth embodiment has substantially the same configuration as the fifth embodiment in FIG. However, in FIG. 7, the branch point P
1 and a dilute diluted solution line L that communicates with the exhaust heat-fired regenerator 30
A second exhaust heat exchanger 60 is interposed in 1-2. The second exhaust heat exchanger 60 removes the amount of heat held by the hot waste water flowing through the waste heat line L2 (more specifically, the region L2O through which the hot waste water heated by the waste heat regenerator 30 flows). ,
It is provided for charging the diluted solution flowing through the diluted solution line L1-2.

As a result of the provision of the second exhaust heat exchanger 60, the temperature of the absorbing solution in the exhaust heat regenerator 30 increases, and the amount of regenerated steam increases. At the same time, the amount of heat held by the hot waste water after the exhaust heat is supplied by the exhaust heat regenerator 30 is further input to the absorbing solution (dilute solution), so that the utilization efficiency of the exhaust heat is further improved, The efficiency of the entire absorption chiller / heater is also improved. Other configurations and operation effects are the same as those in the embodiment of FIG.

FIG. 8 shows an absorption chiller / heater according to a seventh embodiment of the present invention. In the embodiments shown in FIGS. 6 and 7 (fifth and sixth embodiments), the solution line in the region on the low temperature regenerator 48 side from the branch point P1 of the dilute solution line L1 is:
An exhaust heat regenerator 30 and an exhaust heat exchanger 40 are interposed. On the other hand, in the embodiment of FIG. 8, in the dilute solution line L1 from the absorber 22, the exhaust heat regenerator 30 and the exhaust heat exchanger 4
0 is interposed. As a result, the exhaust heat is sufficiently supplied to the dilute solution flowing through the dilute solution line L1, and the utilization efficiency of the exhaust heat and the efficiency of the entire absorption chiller / heater are improved.

At the branch point P1 of the diluted solution line, the line branches to a line L1-1 communicating with the high-temperature regenerator 44 and a line L1-2 communicating with the low-temperature regenerator 48. The absorption solution heated and concentrated by the high-temperature regenerator 44 flows through the solution line L3, and the absorption solution heated and concentrated by the low-temperature regenerator 48 flows through the solution line L1-24.
And return to the absorber 22. Other configurations and operational effects are the same as those of the embodiment shown in FIGS.

FIG. 9 shows an eighth embodiment of the present invention. The eighth embodiment has substantially the same configuration as the seventh embodiment, but in FIG. 9, an area L1A between the low-temperature solution heat exchanger 26 and the exhaust heat regenerator 30 of the dilute solution line L1. , A second exhaust heat exchanger 60 is interposed. The second exhaust heat exchanger 60 is connected to an exhaust heat line L2 (more specifically,
It is provided so that the amount of heat held by the hot wastewater flowing in the region L2O) through which the hot wastewater heated by the exhaust heat heating regenerator 30 flows flows into the diluted solution flowing through the diluted solution line L1A. As a result of the provision of the second exhaust heat exchanger 60, the temperature of the absorbing solution in the exhaust heat regenerator 30 rises, the amount of regenerated steam increases, and the utilization efficiency of the exhaust heat is further improved. The overall efficiency of the water heater is also improved. Other configurations and operational effects are the same as those of the seventh embodiment in FIG.

FIGS. 10 and 11 show an embodiment in which the present invention is applied to a so-called "reverse flow" type absorption chiller / heater. In the absorption chiller / heater according to the ninth embodiment of the present invention shown in FIG.
The diluted solution to which the head is added in 4 flows through the diluted solution line L1. The dilute solution line L1 communicates with the low-temperature regenerator 48 via the low-temperature solution heat exchanger 26, the exhaust heat regenerator 30, and the exhaust heat exchanger 40. Heat with low temperature regenerator 48
The concentrated absorption solution flows through the solution line L6,
At 2, a head is added and communicates with the high-temperature regenerator 44 via the high-temperature solution heat exchanger 42. Heat with high temperature regenerator 44
The concentrated absorption solution flows through the solution line L3 and is returned to the absorber 22.

The dilute solution supplied to the low-temperature regenerator 48 is heated by the exhaust heat regenerator 30 and partially regenerated, and then the exhaust heat (exhaust) from the exhaust line L2A in the exhaust heat exchanger 40. The heating is performed by the exhaust heat of the exhaust heat line L2 supplied to the heat-fired regenerator 30 (exhaust heat at the same temperature level as the exhaust heat). Therefore, the temperature level of the absorbing solution flowing into the low-temperature regenerator 48 becomes higher than that of the conventional one. As a result, the efficiency of waste heat utilization is improved, and the efficiency of the entire absorption chiller / heater is also improved. Other configurations and operational effects are the same as those of the embodiment shown in FIGS.

FIG. 11 shows an absorption chiller / heater according to a tenth embodiment of the present invention, which has substantially the same configuration as that shown in FIG. However, in the absorption chiller / heater of FIG. 11, the region L1A between the low-temperature solution heat exchanger 26 and the waste heat regenerator 30 of the diluted solution line L1 is provided with a waste heat line L1.
2 (more specifically, the amount of heat held by the hot wastewater flowing through the hot wastewater after being heated by the waste heat regenerator 30 into the diluted solution flowing through the diluted solution line L1A). , A second exhaust heat exchanger 60 is interposed. As a result of providing the second exhaust heat exchanger 60, the temperature of the absorbing solution supplied to the exhaust heat regenerator 30 increases, and the amount of regenerated steam increases. And the utilization efficiency of waste heat is further improved,
The efficiency of the entire absorption chiller / heater is also improved. Other configurations and operational effects are the same as those of the embodiment of FIG.

FIGS. 12 and 13 show an embodiment in which the present invention is applied to a so-called "reverse parallel flow" type absorption chiller / heater. In the absorption chiller / heater according to the eleventh embodiment of the present invention shown in FIG. 12, the dilute solution that has exited the absorber 22 flows through the dilute solution line L1, and the low-temperature solution heat exchanger 26, the exhaust heat regenerator 30 , And flows into the low-temperature regenerator 48 via the exhaust heat exchanger 40.

The absorption solution heated and concentrated in the low-temperature regenerator 48 flows through the solution line L6, and at the branch point P1, the solution line L
The process branches to 6-1 and L6-2. The absorption solution flowing through the solution line L6-1 is provided with a head by a pump 62 and communicates with the high-temperature regenerator 44 via the high-temperature solution heat exchanger 42. The absorption solution heated and concentrated by the high-temperature regenerator 44 flows through the solution line L3. On the other hand, the solution line L6-2
At the merging point P2, the solution line L3 joins, and the solution line L8
And returned to the absorber 22.

As in the embodiment of FIGS. 10 and 11, the dilute solution supplied to the low-temperature regenerator 48 is heated by the exhaust heat regenerator 30 and partially regenerated. 40
At the exhaust heat line L2A (exhaust heat regenerator 3)
(The exhaust heat of the same temperature level as the exhaust heat of the exhaust heat line L2 supplied to the heating line L2). Therefore, the low-temperature regenerator 48
The temperature level of the absorbing solution flowing into the inside becomes higher than that of the conventional one. As a result, the efficiency of waste heat utilization is improved, and the efficiency of the entire absorption chiller / heater is also improved. Other configurations and operational effects are the same as those of the embodiment shown in FIGS.

FIG. 13 shows an absorption chiller / heater according to a twelfth embodiment of the present invention, which has substantially the same configuration as that shown in FIG. In addition, in the absorption chiller / heater of FIG. 13, the low-temperature solution heat exchanger 2 of the dilute solution line L1 is used.
In the area L1A between the exhaust heat regeneration device 6 and the exhaust heat regeneration device 30, hot wastewater flowing through the region L2O of the exhaust heat line L2 (the region through which the hot wastewater heated by the exhaust heat regeneration device 30 flows) is held. A second exhaust heat exchanger 60 is interposed in order to input the amount of heat to the diluted solution flowing through the diluted solution line L1A. Second
As a result of providing the exhaust heat exchanger 60, the temperature of the absorbing solution supplied to the exhaust heat heating regenerator 30 increases, the amount of regenerated steam increases, the utilization efficiency of exhaust heat is further improved, and the absorption chiller / heater is used. Overall efficiency is also improved. Other configurations and operational effects are the same as those of the embodiment of FIG.

FIGS. 14 to 19 show an embodiment in which the present invention is applied to a so-called "series / parallel flow" type absorption chiller / heater.

FIG. 14 shows a thirteenth embodiment of the present invention. The diluted solution exiting the absorber 22 flows through the diluted solution line L1 and passes through the low-temperature solution heat exchanger 26, the exhaust heat regenerator 30, and the exhaust heat exchanger 40. Then, at a branch point P1, the solution branches into a solution line L1-1 communicating with the high-temperature regenerator 44 and a solution line L1-2 communicating with the low-temperature regenerator 48.

The absorption solution heated and concentrated in the high-temperature regenerator 44 flows through the solution line L 3 and flows into the low-temperature regenerator 48. Then, the absorbing solution heated and concentrated by the low-temperature regenerator 48 flows through the solution line L4 and returns to the absorber 22.

Also in the embodiment shown in FIG. 14, the dilute solution flowing through the dilute solution line L1 is heated by the exhaust heat regenerator 30 and partially regenerated, and then further discharged from the exhaust heat line L2A in the exhaust heat exchanger 40. Waste heat (exhaust heat at the same temperature level as the waste heat of the waste heat line L2 supplied to the waste heat combustion regenerator 30)
Is heated. Therefore, the temperature level of the dilute solution flowing through the dilute solution line L1 becomes higher than that of the conventional dilute solution, the utilization efficiency of exhaust heat is improved, and the efficiency of the entire absorption chiller / heater is improved. Other configurations and effects are shown in FIG.
This is similar to the embodiment of FIG.

FIG. 15 shows an absorption chiller / heater according to a fourteenth embodiment of the present invention, which has substantially the same configuration as that shown in FIG. In the absorption chiller / heater of FIG.
In the region L1A between the low-temperature solution heat exchanger 26 of the dilute solution line L1 and the exhaust heat regenerator 30, the second exhaust heat exchanger 6 is provided.
0 is interposed. Then, the second exhaust heat exchanger 60
In, the amount of heat retained by the warm wastewater flowing through the region L2O of the waste heat line L2 (the region through which the warm wastewater flows after being heated by the waste heat heating regenerator 30) is applied to the diluted solution flowing through the diluted solution line L1A. It is thrown. As a result of the provision of the second exhaust heat exchanger 60, the temperature of the absorbing solution supplied to the exhaust heat heating regenerator 30 further increases, the amount of regenerated steam increases, and the efficiency of exhaust heat utilization is further improved. The overall efficiency of the water heater is also improved. The other configurations and operational effects are the same as those of the embodiment in FIG.

In the embodiments of FIGS. 14 and 15, the dilute solution line L 1 branches off after passing through the waste heat regenerator 30 and the waste heat exchanger 40. On the other hand, in the fifteenth embodiment shown in FIG. 16, the dilute solution line L1 is branched before passing through the waste heat regenerator 30 and the waste heat exchanger 40. In FIG. 16, a dilute solution line L1 is a line L1 communicating with a high temperature regenerator 44 at a branch point P1.
-1 and a line L1-2 communicating with the exhaust heat regenerator 30.

The absorption solution heated and concentrated in the high-temperature regenerator 44 flows through the line L3 and flows into the exhaust heat regenerator 30. In other words, the solutions branched at the branch point P <b> 1 join at the waste heat regenerator 30. And the waste heat regenerator 30
In, waste heat is supplied from the waste heat line L2, heated, and partially regenerated.

The absorption solution heated and concentrated in the waste heat regenerator 30 flows through the line L1-22 and flows into the low temperature regenerator 48. An exhaust heat exchanger 40 is interposed in the line L1-22. In the exhaust heat exchanger 40, the exhaust heat line L
The exhaust heat of 2A (the exhaust heat at the same temperature level as the exhaust heat of the exhaust heat line L2) is supplied.

The solution heated and concentrated by the low-temperature regenerator 48 flows through the line L 4 and returns to the absorber 22.

Also in the embodiment shown in FIG. 16, the absorbing solution supplied to the low-temperature regenerator 48 is heated and partially regenerated by the exhaust heat regenerator 30 and then exhausted by the exhaust heat line L2A in the exhaust heat exchanger 40. Is heated by the exhaust heat from As a result, the temperature level of the absorbing solution flowing into the low-temperature regenerator 48 increases, the utilization efficiency of exhaust heat is improved, and the efficiency of the entire absorption chiller / heater is also improved. Other configurations and operational effects are the same as those of the embodiment shown in FIGS.

FIG. 17 shows an absorption chiller / heater according to a sixteenth embodiment of the present invention, which has substantially the same configuration as that shown in FIG. According to the absorption chiller / heater of FIG. 17, the absorption solution heated and concentrated by the high-temperature regenerator 44 from the branch point P1 through the line L1-1 passes through the line L3, at the junction P2, from the branch point P1. The other branch line L1-
Merge with 2. Then, it communicates with the exhaust heat regenerator 30 through the line L1-22.

A second exhaust heat exchanger 60 is interposed in a line L1-22 communicating from the junction to the exhaust heat regenerator 30, and is connected to an exhaust heat line L2 (more specifically, an exhaust heat line L2). The amount of heat held by the hot wastewater flowing through the region L2O through which the hot wastewater heated by the regenerator 30 flows is transferred to the line L1-22.
Into the flowing absorbing solution. As a result of the provision of the second exhaust heat exchanger 60, the temperature of the absorbing solution supplied to the exhaust heat regenerator 30 increases, the amount of regenerated steam increases, and the efficiency of exhaust heat utilization is further improved. The overall efficiency of the water heater is also improved. For other configurations and operational effects, see FIG.
This is the same as the embodiment.

The seventeenth embodiment shown in FIG. 18 has a configuration substantially similar to that of the embodiment shown in FIG. Here, FIG.
In the embodiment, the absorption solution heated and concentrated in the high-temperature regenerator 44 passes through the line L3 to exhaust heat-fired regenerator 30.
Is flowing into On the other hand, according to the seventeenth embodiment of FIG. 18, the absorbing solution heated and concentrated by the high-temperature regenerator 44 flows through the line L3, but the line L3 does not communicate with the exhaust heat regenerator 30. , And a low temperature regenerator 48.
In other words, in the embodiment of FIG. 18, the absorption solution that has flowed through the line L1-1 and has been heated and concentrated by the high-temperature regenerator 44,
The absorption solution that flows through the line L1-2 and is heated by the exhaust heat regenerator 30 and the exhaust heat exchanger 40 is joined by the low temperature regenerator 48. The other configuration and operation and effect are the same as those of the embodiment of FIG.

In the eighteenth embodiment shown in FIG. 19, a second exhaust heat exchanger 60 is added to the embodiment shown in FIG.
More specifically, a second exhaust heat exchanger 60 is interposed in a line L1-2 communicating with the exhaust heat regenerator 30 from a branch point, and a region L2O of the exhaust heat line L2 (exhaust heat The amount of heat possessed by the hot wastewater flowing through the hot wastewater flowing in the region where the hot wastewater flows after being heated by the regenerator 30 is supplied to the absorbing solution flowing through the line L1-2. As a result of the provision of the second exhaust heat exchanger 60, the temperature of the absorbing solution supplied to the exhaust heat regenerator 30 increases, the amount of regenerated steam increases, and the efficiency of exhaust heat utilization is further improved. The overall efficiency of the water heater is also improved. For other configurations and operational effects, see FIG.
This is the same as the embodiment.

FIG. 20 shows a nineteenth embodiment of the present invention. This embodiment is a modification of the “series flow” type embodiment according to the embodiment of FIG. Refrigerant vapor in which a gas-phase refrigerant (steam) regenerated by the heat retained by the exhaust heat holding fluid (for example, hot waste water) flowing through the exhaust heat line L2 in the exhaust heat regenerator 30 interposed in the dilute solution line L1 The line L13 is connected to the second condenser 7
It communicates with 0. The liquid-phase refrigerant condensed in the second condenser 70 flows through the refrigerant line L70, merges with the line L5, and is supplied to the evaporator 52.

By providing the second condenser 70, the regeneration efficiency of the waste heat regenerator 30 is improved, and the waste heat utilization efficiency is improved. Further, similarly to the above-described embodiment, the absorbing solution heated by the exhaust heat regenerator 30 is heated in the exhaust heat exchanger 40, and the utilization efficiency of the exhaust heat is improved as compared with the related art. The efficiency of the entire absorption chiller / heater is also improved. Other configurations and operational effects are described in FIG.
This is the same as the embodiment.

FIG. 21 shows a twentieth embodiment of the present invention. The embodiment of FIG.
20 is different from the embodiment of FIG. The second exhaust heat exchanger 60 in FIG. 21 includes the low-temperature solution heat exchanger 26 and the exhaust heat regenerator 3 in the diluted solution line L1.
It is interposed in an area L1-A between 0 and 0. And the second
The exhaust heat exchanger 60 of the present embodiment determines the amount of heat held by the warm waste water flowing through the waste heat line L2 (more specifically, the region L2O through which the warm waste water heated by the waste heat heating regenerator 30 flows). The diluted solution flowing in the region L1-A is charged.

As a result of providing the second exhaust heat exchanger 60, the temperature of the absorbing solution in the exhaust heat regenerator 30 increases, and the amount of regenerated steam increases. At the same time, the efficiency of using waste heat is extremely high, and the efficiency of the entire absorption chiller / heater is improved. Other configurations and operational effects are the same as those of the embodiment of FIG.

The embodiment of FIG. 22 is a twenty-first embodiment of the present invention, and is an embodiment relating to an absorption chiller / heater in which the lower trunk portion (absorber and evaporator) in the first embodiment of FIG. It is a form. In FIG. 22, the lower trunk portion includes a low-pressure side absorber 22L, a high-pressure side absorber 22H, a low-pressure side evaporator 52L, a high-pressure side evaporator 52H, and a low-pressure side evaporator 52.
L and a refrigerant vapor line L that communicates with the low-pressure side absorber 22L.
17L, a refrigerant vapor line L17H connecting the high pressure side evaporator 52H and the high pressure side absorber 22H, and a low pressure side absorber 2
Line L22 connecting 2L and high-pressure side absorber 22H
And a line L52 that connects the low-pressure side evaporator 52L and the high-pressure side evaporator 52H.

According to the embodiment shown in FIG.
The efficiency of the absorption chiller / heater is further improved as a result of the configuration of multiple stages. The other configuration and operation and effect are the same as those of the embodiment of FIG.

FIG. 23 shows a twenty-second embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 3 is constructed in two stages. The configuration, operation, and effects of the lower trunk portion of this embodiment are the same as those of the embodiment of FIG. 22, and the configuration, operation, and effects of portions other than the lower trunk are the same as those of the embodiment of FIG.

FIG. 24 shows a twenty-third embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 4 is constructed in two stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 25 shows a twenty-fourth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 5 is constructed in two stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 26 shows a twenty-fifth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 6 is constructed in two stages. The configuration, operation, and effect of the lower trunk portion of this embodiment are the same as those of the embodiment shown in FIGS.

FIG. 27 shows a twenty-sixth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 7 is constructed in two stages. The configuration, operation, and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 28 shows a twenty-seventh embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 8 is constructed in two stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 29 shows a twenty-eighth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG. 9 is constructed in two stages. The configuration, operation, and effect of the lower trunk portion of this embodiment are the same as those of the embodiment shown in FIGS.

FIG. 30 shows a twenty-ninth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 31 shows a thirtieth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 32 shows a thirty-first embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower torso portion of this embodiment are the same as those of the embodiment of FIGS. 22 to 31.

FIG. 33 shows a thirty-second embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 34 shows a thirty-third embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 35 shows a thirty-fourth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 36 shows a thirty-fifth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation, and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 37 shows a thirty-sixth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS. 22 to 36, and the configuration, operation and effect other than that of the lower trunk are the same as those of the embodiment of FIG.

FIG. 38 shows a thirty-seventh embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower torso portion of this embodiment are the same as those of the embodiment shown in FIGS.

FIG. 39 shows a thirty-eighth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation, and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 40 shows a thirty-ninth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

FIG. 41 shows a fortieth embodiment of the present invention. In this embodiment, the lower trunk of the embodiment shown in FIG.
It is configured in stages. The configuration, operation and effect of the lower trunk portion of this embodiment are the same as those of the embodiment of FIGS.

It should be noted that the illustrated embodiment is merely an example, and is not a description of limiting the technical scope of the present invention.

[0096]

As described above, in the absorption chiller / heater of the present invention having the exhaust heat regenerator, the concentration of the absorption solution is shifted to a lower concentration and the temperature level is lower.
The absorption solution heated by the exhaust heat combustion regenerator is supplied to an exhaust heat exchanger (first exhaust heat exchanger: reference numeral 4 in the illustrated embodiment).
0) and waste heat is further injected into the absorbing solution. Therefore, the temperature level of the absorbing solution that goes out of the exhaust heat-fired regenerator and goes to the high-temperature solution heat exchanger and the high-temperature regenerator is increased, the amount of heat to be heated by the high-temperature regenerator is reduced, and the heat is consumed by the high-temperature regenerator. The consumption of high quality fuel (gas, high pressure steam, etc.) can be saved. Further, the efficiency of using waste heat is much improved as compared with the prior art. And the efficiency of the whole absorption chiller / heater can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a first embodiment of the present invention.

FIG. 2 is a During diagram illustrating the operation of the embodiment of FIG. 1;

FIG. 3 is a block diagram schematically showing a second embodiment of the present invention.

FIG. 4 is a block diagram schematically showing a third embodiment of the present invention.

FIG. 5 is a block diagram schematically showing a fourth embodiment of the present invention.

FIG. 6 is a block diagram schematically showing a fifth embodiment of the present invention.

FIG. 7 is a block diagram schematically showing a sixth embodiment of the present invention.

FIG. 8 is a block diagram schematically showing a seventh embodiment of the present invention.

FIG. 9 is a block diagram schematically showing an eighth embodiment of the present invention.

FIG. 10 is a block diagram schematically showing a ninth embodiment of the present invention.

FIG. 11 is a block diagram schematically showing a tenth embodiment of the present invention.

FIG. 12 is a block diagram schematically showing an eleventh embodiment of the present invention.

FIG. 13 is a block diagram schematically showing a twelfth embodiment of the present invention.

FIG. 14 is a block diagram schematically showing a thirteenth embodiment of the present invention.

FIG. 15 is a block diagram schematically showing a fourteenth embodiment of the present invention.

FIG. 16 is a block diagram schematically showing a fifteenth embodiment of the present invention.

FIG. 17 is a block diagram schematically showing a sixteenth embodiment of the present invention.

FIG. 18 is a block diagram schematically showing a seventeenth embodiment of the present invention.

FIG. 19 is a block diagram schematically showing an eighteenth embodiment of the present invention.

FIG. 20 is a block diagram schematically showing a nineteenth embodiment of the present invention.

FIG. 21 is a block diagram schematically showing a twentieth embodiment of the present invention.

FIG. 22 is a block diagram schematically showing a twenty-first embodiment of the present invention.

FIG. 23 is a block diagram schematically showing a twenty-second embodiment of the present invention.

FIG. 24 is a block diagram schematically showing a twenty-third embodiment of the present invention.

FIG. 25 is a block diagram schematically showing a twenty-fourth embodiment of the present invention.

FIG. 26 is a block diagram schematically showing a twenty-fifth embodiment of the present invention.

FIG. 27 is a block diagram schematically showing a twenty-sixth embodiment of the present invention.

FIG. 28 is a block diagram schematically showing a twenty-seventh embodiment of the present invention.

FIG. 29 is a block diagram schematically showing a twenty-eighth embodiment of the present invention.

FIG. 30 is a block diagram schematically showing a twenty-ninth embodiment of the present invention.

FIG. 31 is a block diagram schematically showing a thirtieth embodiment of the present invention.

FIG. 32 is a block diagram schematically showing a thirty-first embodiment of the present invention.

FIG. 33 is a block diagram schematically showing a 32nd embodiment of the present invention.

FIG. 34 is a block diagram schematically showing a thirty-third embodiment of the present invention.

FIG. 35 is a block diagram schematically showing a thirty-fourth embodiment of the present invention.

FIG. 36 is a block diagram schematically showing a 35th embodiment of the present invention.

FIG. 37 is a block diagram schematically showing a 36th embodiment of the present invention.

FIG. 38 is a block diagram schematically showing a 37th embodiment of the present invention.

FIG. 39 is a block diagram schematically showing a thirty-eighth embodiment of the present invention.

FIG. 40 is a block diagram schematically showing a thirty-ninth embodiment of the present invention.

FIG. 41 is a block diagram schematically showing a fortieth embodiment of the present invention.

FIG. 42 is a block diagram schematically illustrating an example of a conventional absorption chiller / heater.

FIG. 43 is a During diagram showing characteristics of the conventional absorption chiller / heater of FIG. 42;

FIG. 44 is a block diagram schematically illustrating an example of another conventional absorption chiller / heater.

[Explanation of symbols]

Reference Signs List 20 ... absorption chiller / heater 22 ... absorber 24, 32 ... pump 26 ... low-temperature solution heat exchanger 30 ... waste heat regenerator 40 ... first waste heat Exchangers L1, L1-1, L1-2, L1-22, L1-23,
L3, L4, L5, L6, L6-1, L6-2, L8,
L22: Solution line L1A: Solution line area L5, L11, L13, L15, L17, L17L, L
17H, L52, L70 ... Refrigerant line L2, L2A ... Exhaust heat line L2O ... Exhaust heat line area 42 ... High temperature solution heat exchanger 44 ... High temperature regenerator 46 ... High quality Heating with fuel 48 ・ ・ ・ Low temperature regenerator 50 ・ ・ ・ Condenser 52 ・ ・ ・ Evaporator 60 ・ ・ ・ Second exhaust heat exchanger 70 ・ ・ ・ Second condenser

Claims (9)

[Claims] 1. An absorption chiller / heater comprising an absorber, a condenser, an evaporator, a high-temperature regenerator, and a low-temperature regenerator.
An exhaust heat regenerator is interposed in the solution line through which the absorbing solution flows,
A first exhaust heat exchanger for supplying exhaust heat to the absorbing solution flowing through the solution line is interposed in a solution line through which the absorbing solution heated and partially regenerated by the exhaust heat burning regenerator flows. Absorption chiller / heater characterized by the fact that 2. A method according to claim 1, wherein a second exhaust heat exchanger for supplying exhaust heat to the absorbing solution flowing through the solution line is provided in the solution line for supplying the absorbing solution in communication with the exhaust heat regenerator. Item 1. Absorption chiller / heater of item 1. 3. The absorption chiller / heater according to claim 1, wherein the absorption chiller / heater is configured such that the absorption solution discharged from the absorber flows into the low-temperature regenerator after passing through the high-temperature regenerator. Hot and cold water machine. 4. The absorption chiller / heater, wherein a solution line through which a dilute solution flowing out of the absorber flows is branched into a solution line communicating with a high-temperature regenerator and a solution line communicating with a low-temperature regenerator,
The solution line in which the absorption solution heated by the high-temperature regenerator flows and the solution line in which the absorption solution heated by the low-temperature regenerator flows merge to communicate with the absorber. Any of the absorption chiller / heater. 5. The absorption chiller / heater according to claim 1, wherein the absorption solution discharged from the absorber flows into the high temperature regenerator after passing through the exhaust heat regenerator and the low temperature regenerator. , 2
Any of the absorption chiller / heater. 6. The absorption chiller / heater has a solution line through which an absorption solution flows through a waste heat regenerator and a low temperature regenerator,
3. The absorption chiller / heater according to claim 1, wherein the absorption chiller / heater is configured to branch into a solution line communicating with the high temperature regenerator and a solution line returning to the absorber. 7. The absorption chiller / heater, wherein a solution line through which the dilute solution flowing from the absorber flows branches into a solution line communicating with the high-temperature regenerator and a solution line communicating with the low-temperature regenerator,
The solution line through which the absorption solution heated by the high-temperature regenerator flows is connected to the low-temperature regenerator.
Any of the absorption chiller / heater. 8. A first condenser into which the refrigerant from the high-temperature regenerator and the refrigerant vapor generated by the low-temperature regenerator flow, and a second condenser into which the refrigerant vapor generated by the exhaust heat combustion regenerator flows. The absorption chiller / heater according to any one of claims 1 and 2, comprising: 9. The absorption chiller / heater according to claim 1, wherein the absorber and the evaporator are divided into a plurality of stages.