JP6972655B2 - Absorption heat pump device - Google Patents

Description

The present invention relates to absorption heat pump equipment, in particular, the exhaust gas and the absorption liquid and a mixed solution containing the refrigerant about the absorption heat pump equipment for exchanging heat.

Conventionally, a composite absorption type heat pump device (absorption type heat pump device) is known in which a mixed liquid (mixed liquid) containing an absorbing liquid and a diluting liquid (refrigerant) and an exhaust gas (exhaust gas) are configured to exchange heat. (For example, see Patent Document 1).

In the composite type absorption heat pump device of Patent Document 1, the regenerator including the regenerating section and the separating section (gas-liquid separating section) and the water vapor (refrigerator) supplied from the separating section are cooled and condensed by a coolant to form a liquid phase. It is equipped with a condenser for water, an evaporator for warming liquid phase water to be steam, and an absorber for absorbing water in a high-concentration absorbent liquid. Further, the composite absorption heat pump device of Patent Document 1 further includes an exhaust heat recovery device for heat exchange between the exhaust gas and the mixed liquid generated by absorbing water vapor in the absorption liquid having a high concentration in the absorber.

In the exhaust heat recovery device, a filter unit having a purification unit is used to neutralize the condensed water generated by heat exchange between the mixed liquid and the exhaust gas, and the neutralized condensed water is sprayed on the cooling unit including the radiator. As a result, in the cooling unit, the coolant (cooling water) flowing inside the radiator is cooled by the vaporization of the sprayed condensed water.

Japanese Unexamined Patent Publication No. 2013-245902

However, in the composite absorption heat pump device described in Patent Document 1, the coolant (cooling water) inside the radiator is cooled by spraying the condensed water purified in the filter portion as it is on the radiator, so that the condensed water is condensed. There is a problem that the cooling performance is not sufficient. Therefore, an absorption heat pump device capable of improving the cooling performance by condensed water is desired.

The present invention has been made to solve the above-mentioned problems, and one object of the present invention is an absorption heat pump device and a condensed water purification cooling device capable of improving the cooling performance by condensed water. Is to provide.

In order to achieve the above object, the absorption type heat pump device according to one aspect of the present invention includes a regenerator including a gas-liquid separation unit that separates the refrigerant from the mixed liquid containing the refrigerant and the absorption liquid, and a gas-liquid separation unit. A condenser that condenses the refrigerant separated from the mixed liquid, an evaporator that evaporates the condensed refrigerant in the condenser, and a refrigerant that is evaporated by the evaporator into an absorbent liquid separated from the mixed liquid in the gas-liquid separation section. Condensed water purification that purifies and cools the condensed water generated from the exhaust gas due to the heat exchange between the absorber that absorbs the fuel and the mixed liquid supplied from the exhaust gas discharged from the engine and the absorber. and a condenser, the condensed water purifier cooler, that is configured to cool the condensed water by vaporizing a portion of the condensed water.

In the absorption heat pump device according to one aspect of the present invention, as described above, the condensed water purification chiller not only purifies but also cools the condensed water generated by the heat exchange between the exhaust gas and the mixed liquid. , The temperature of the condensed water can be lowered as compared with the case where the purified condensed water is not cooled. As a result, in the absorption type heat pump device provided with the condensed water purification chiller, the cooling performance by the condensed water can be improved. Further, by purifying and cooling the condensed water, the condensed water itself can be used as cooling water (coolant) for cooling the condenser and the absorber. As a result, the condenser and the absorber can be cooled more efficiently than when the condensed water is used as the cooling water for cooling the condenser and the absorber.
Further, since an endothermic reaction occurs in the condensed water to vaporize a part of the condensed water, the condensed water can be cooled (vaporized and cooled) by the amount of heat required for the endothermic reaction. As a result, the temperature of the condensed water can be lowered by cooling the condensed water itself (self-cooling by vaporization cooling), so that the configuration of the condensed water purification cooler can be simplified.

In the absorption type heat pump device according to the above one aspect, preferably , the condensed water purification cooler can hold the supplied condensed water in a heat exchangeable manner with air and vaporize a part of the supplied condensed water. Includes holding members to hold in.

With this configuration, both the cooling by heat exchange between the condensed water and the air (sensible heat cooling) and the vaporization cooling can be performed on the condensed water by using the holding member, so that the condensed water can be cooled. The temperature can be lowered.

In the absorption heat pump device including the holding member, preferably, the holding member is provided with a neutralizing agent that removes and purifies the acidic component contained in the condensed water.

With this configuration, the condensed water can be cooled and purified only by the holding member, so that the configuration of the condensed water purification cooler can be simplified.

In the absorption type heat pump device including the holding member, preferably, the condensed water purification cooler has a condensed water supply unit that stores a certain amount of condensed water supplied to the holding member and then holds the condensed water in the holding member. Further included.

With this configuration, since a certain amount of condensed water is stored in the condensed water supply unit, the holding member can stably hold the condensed water.

In the present application, the following configuration is also conceivable in the absorption heat pump device according to the above one aspect.

(Appendix 1)
That is, in the absorption type heat pump device according to the above one aspect, preferably, the tank for storing the condensed water supplied to the condensed water cooler and the condensed water for measuring the liquid level position or the liquid amount of the condensed water stored in the tank. It has a measuring unit and a heat exchange unit that exchanges heat between the exhaust gas and the mixed liquid, and further includes an exhaust heat recovery device that generates condensed water due to the heat exchange of the exhaust gas. It is configured to supply condensed water from the waste heat recovery device to the tank based on the measured liquid level position or liquid amount becoming equal to or lower than the threshold value.

(Appendix 2)
In the absorption type heat pump device in the above one aspect, the absorber preferably includes a heat exchanger that exchanges heat between the purified condensed water purified and cooled by the condensed water purification cooler and the absorbing liquid.

(Appendix 3)
In the absorption type heat pump device including the holding member, preferably, the condensed water purification cooler includes a purified condensed water storage unit for storing cooled and purified purified condensed water, and is stored in the purified condensed water storage unit. A part of the holding member is arranged at a position where it is immersed in purified condensed water.

It is a schematic whole block diagram of the absorption type heat pump apparatus by one Embodiment of this invention. It is a perspective view which showed the condensed water purification chiller of the absorption type heat pump apparatus by one Embodiment of this invention. It is a vertical sectional view which showed the condensed water supply part of the condensed water purification chiller in the absorption type heat pump apparatus by one Embodiment of this invention. It is sectional drawing along the line 100-100 of FIG. It is a vertical sectional view which showed the purified condensed water discharge part of the condensed water purification chiller in the absorption type heat pump apparatus by one Embodiment of this invention. FIG. 5 is a cross-sectional view taken along the line 110-110 of FIG. It is sectional drawing which showed the flow of the air through the gap of a plurality of holding members. It is a vertical sectional view which showed the condensed water which vaporizes from a plurality of holding members. It is a vertical sectional view showing a part of the inside of a holding member in an enlarged manner. It is a perspective view which showed the condensed water purification chiller of the absorption type heat pump apparatus by the 1st modification of this invention. It is a schematic whole block diagram of the absorption type heat pump apparatus by the 2nd modification of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, with reference to FIG. 1, the configuration of the absorption heat pump device 1 according to the embodiment of the present invention will be described. In the absorption heat pump device 1, water is used as the refrigerant and an aqueous solution of lithium bromide (LiBr) is used as the absorption liquid. Further, the absorption heat pump device 1 is mounted on a vehicle such as a passenger car, a bus and a truck equipped with an engine (an example of a prime mover), and is configured to be applied to an in-vehicle air conditioning system. Specifically, as shown in FIG. 1, the absorption heat pump device 1 includes a regenerator 2 including a heating unit 2a and a gas-liquid separation unit 2b, a condenser 3, an evaporator 4, and an absorber 5. I have.

The heating unit 2a is a plate heat exchanger and has a role of heating the mixed liquid by using the heat of the exhaust gas of the engine. Here, the absorbing liquid usually flows through the heating unit 2a in a state where the LiBr concentrated liquid is diluted with the refrigerant (water). The gas-liquid separation unit 2b has a function of separating the refrigerant vapor (high temperature steam) from the mixed liquid containing the refrigerant and the absorbing liquid heated by the heating unit 2a.

Here, in the heating unit 2a, heat exchange between the exhaust gas and the mixed liquid is performed. At this time, when the exhaust gas is cooled by the mixed liquid, the water contained in the exhaust gas is condensed to generate liquid water (condensed water DW (W)). The condensed water DW has acidity because an acidic component (sulfuric acid or the like) in the exhaust gas is dissolved therein.

Further, the condenser 3 has a role of condensing (liquefying) the refrigerant vapor separated by the gas-liquid separation unit 2b during the cooling operation. Further, the evaporator 4 has a role of evaporating (vaporizing) the refrigerant condensed in the condenser 3 under low temperature and low pressure conditions during the cooling operation. Further, the absorber 5 has a role of absorbing the refrigerant (low temperature steam) vaporized and vaporized by the evaporator 4 in the absorbed liquid in a concentrated liquid state separated from the mixed liquid in the gas-liquid separation unit 2b.

Here, the evaporator 4 includes an evaporator heat exchanger 4a arranged inside the container and an injector 4b attached near the ceiling portion inside the container. Further, outside the evaporator 4, a pump 4e is provided in a refrigerant transfer pipe 4d connecting the refrigerant storage unit 4c and the injector 4b. As a result, the refrigerant (water) in the refrigerant storage unit 4c is pumped up by the pump 4e and injected in a mist form from the injector 4b toward the lower heat exchanger 4a for the evaporator.

Further, the absorber 5 includes an injector 5a attached in the vicinity of the ceiling portion inside the container. Further, outside the absorber 5, a pump 5c is provided in the absorbent liquid transfer pipeline 5b connecting the absorbent liquid storage unit 5d and the injector 5a. As a result, the absorbent liquid of the absorbent liquid storage portion 5d is pumped up by the pump 5c and injected in a mist form from the injector 5a toward the lower heat exchanger 5e for the absorber.

As shown in FIG. 1, the absorption heat pump device 1 includes a cooling water circuit unit 6 and a condensed water purification cooler 7 that purifies and cools the condensed water W. The cooling water circuit unit 6 is configured to be driven only during the cooling operation. That is, the cooling water circuit unit 6 cools (liquefies) the refrigerant vapor (high temperature steam) in the condenser 3 during the cooling operation and absorbs the refrigerant (low temperature steam) in the absorber 5 into the absorbing liquid (LiBr concentrated liquid). It has a function to cool (remove heat) the absorbed heat that sometimes occurs.

Specifically, the cooling water circuit unit 6 directs the purified water CW as cooling water or the condensed water W before purification to the cooling water circulation circuit unit 61 and the condensed water W in the cooling water circulation circuit unit 61 in the direction of the arrow. Includes a water pump 62 for circulating in the water. Further, the cooling water circuit unit 6 recirculates the purified condensed water CW (W) purified and cooled by the condensed water purification cooler 7 downstream of the water supply pump 62 to the upstream of the condensed water purification cooler 7. Includes. As a result, in the absorption heat pump device 1, it becomes possible to purify and cool the purified condensed water CW once purified and cooled in the condensed water purification cooling again.

The cooling water circuit unit 6 is arranged inside the absorber 5, and is a heat exchanger 5e for the absorber for cooling (removing heat) the absorbed liquid by heat exchange between the purified condensed water CW and the absorbed liquid in which the absorbed heat is generated. An example of a heat exchange unit) is included. The cooling water circuit unit 6 is arranged inside the condenser 3 and includes a heat exchanger 3a for a condenser for cooling (liquefying) the refrigerant steam by heat exchange between the purified condensed water CW and the refrigerant steam.

The absorption type heat pump device 1 includes a condensed water purifying cooler 7 for cooling the condensed water MW (W) in which the purified condensed water CW heated by heat exchange and the condensed water DW are mixed. The condensed water purification cooler 7 is arranged in the cooling water circulation circuit unit 61. In the condensed water purification cooler 7, the condensed water MW, which is a mixture of the purified condensed water CW and the condensed water DW circulating inside the heat exchanger 5e for the absorber and the heat exchanger 3a for the condenser, is a traveling wind or a fin 7a (blower). It is cooled by the air (outside air) blown by (one example). In this case, the temperature of the mixed condensed water MW immediately before returning to the condensed water purification cooler 7 is around 50 ° C., and the temperature of the purified condensed water CW immediately after leaving the condensed water purification cooler 7 is around 35 ° C. be.

<Exhaust heat recovery device>
As shown in FIG. 1, the absorption heat pump device 1 further includes a condensed water supply circuit unit 8 separate from the cooling water circuit unit 6 and an exhaust heat recovery device 20 arranged in the condensed water supply circuit unit 8. ing. Specifically, the exhaust heat recovery device 20 is arranged at a confluence position between the cooling water circuit unit 6 and the condensed water supply circuit unit 8, and stores the mixed condensed water MW supplied to the condensed water purification cooler 7. It includes a tank 21 and a liquid amount measuring unit 22 (an example of a condensed water measuring unit) for measuring the liquid amount of the mixed condensed water MW stored in the tank 21. Further, the pump 23 and the on-off valve 24 of the waste heat recovery device 20 are arranged in the condensed water supply circuit unit 8.

As a result, as shown in FIG. 1, the exhaust heat recovery device 20 keeps the liquid amount of the mixed condensed water MW in the tank 21 at a predetermined amount or more by using the liquid amount measuring unit 22, and stably. The condensed water MW mixed in the condensed water purification cooler 7 can be supplied. As a result, even if the purified condensed water CW flowing in the cooling water circuit unit 6 decreases, the condensed water W can be appropriately replenished.

Further, the exhaust heat recovery device 20 opens and closes to open and close the pump 23 for supplying the condensed water DW from the heating unit 2a to the tank 21 and the flow of the condensed water DW between the heating unit 2a and the tank 21. Includes valve 24. The waste heat recovery device 20 includes a check valve 25 for preventing the mixed condensed water MW from the condensed water purification cooler 7 from flowing back into the tank 21. The check valve 25 is arranged in the cooling water circulation circuit section 61.

<Condensed water purification cooler>
The condensed water purification cooler 7 (an example of a condensed water purification cooling device) is generated by exchanging heat between the exhaust gas discharged from the engine and the mixed liquid supplied from the absorber 5 (an example of a cooling liquid). It is configured to purify and cool the acidic condensed water DW. As a result, in the absorption type heat pump device 1, the condensed water purification cooler 7 was used to purify and cool the acidic condensed water MW in which the condensed water DW and the purified condensed water CW generated in the heating unit 2a were mixed. The purified condensed water CW is supplied to the cooling water circuit unit 6 downstream of the condensed water purified cooler 7.

The condensed water purification cooler 7 of the absorption type heat pump device 1 is an acidic condensed water MW in which the condensed water DW supplied from the condensed water supply circuit unit 8 and the purified condensed water CW circulating in the cooling water circuit unit 6 are mixed. Is configured to purify and cool. Here, in the condensed water purification cooler 7 of the present embodiment, the condensed water MW in which the purified condensed water CW and the condensed water DW are mixed is cooled by using sensible heat cooling and vaporization cooling by the air flowing around. .. As a result, the condensed water MW in which the purified condensed water CW and the condensed water DW are mixed can be cooled to a lower temperature than when only the sensible heat cooling is used. Hereinafter, the condensed water purification cooler 7 will be described in detail.

As shown in FIG. 2, the condensed water purification cooler 7 includes a condensed water supply unit 7c, a plurality of (three) holding members 7b, and a purified condensed water discharge unit 7d (an example of a purified condensed water storage unit). Have. Further, the condensed water purification cooler 7 has fins 7a (see FIG. 1) that send wind to the holding member 7b. Here, the direction in which the plurality of holding members 7b are lined up is the X direction, and the flow direction of the air flowing between the holding members 7b is the Y direction. Further, the Z direction corresponds to the vertical direction with the condensed water purification cooler 7 mounted on the vehicle.

As shown in FIG. 3, the condensed water supply unit 7c stores the condensed water MW in which the condensed water DW and the purified condensed water CW are mixed in a certain amount or more, and then stores the condensed water MW mixed in the holding member 7b. It is configured to supply. Specifically, it has a condensed water inflow unit 72 for supplying the condensed water MW and a storage unit 73 for storing the mixed condensed water MW.

The condensed water inflow portion 72 is provided on the second wall portion 73b on the side opposite to the lower (Z1 side) first wall portion 73a (upper side (Z2) side) to which the holding member 7b is attached in the storage portion 73. It is provided. The condensed water inflow portion 72 is arranged on the second wall portion 73b on the other side (X2 side) of the holding member 7b in the line-up direction (X direction). The storage portion 73 has an internal space 73c and a supply-side mounting portion 73d to which a part of the holding member 7b is mounted. As shown in FIGS. 3 and 4, the supply-side mounting portion 73d has a protruding portion 73e protruding in a frame shape toward the internal space 73c side, and an insertion hole 73f surrounded by the frame-shaped protruding portion 73e. There is.

Since the protrusion 73e is provided in the storage portion 73, the condensed water MW mixed up to the height of the protrusion 73e in the Z direction can be stored in the internal space 73c. Further, in the storage unit 73, when the mixed condensed water MW is stored beyond the height of the protruding portion 73e in the Z direction, the condensed water MW mixed in the holding member 7b permeates and is supplied to the holding member 7b. It is possible. A plurality (three) of the supply side mounting portions 73d are formed on the second wall portion 73b, and all have the same configuration. Here, in the embodiment in which the condensed water MW mixed in the holding member 7b is sprayed, the acidic condensed water MW mixed by the traveling wind or the wind of the fins 7a is scattered around the holding member 7b, but the holding member 7b is covered with the acidic condensed water MW. In the mode of impregnation, it is possible to suppress the scattering of the mixed acidic condensed water MW.

As shown in FIG. 5, the purified condensed water discharge unit 7d is configured to discharge the purified condensed water CW to the cooling water circuit unit 6 while storing a certain amount or more of the purified condensed water CW discharged from the holding member 7b. Has been done. Specifically, it has a storage unit 74 for storing the mixed purified condensed water CW, and an outflow unit 75 for discharging the purified condensed water CW from the storage unit 74 to the water supply pump 62.

The outflow portion 75 is provided in the storage portion 74 on the fourth wall portion 74b on the side (lower side (Z1 side)) opposite to the upper (Z2 side) third wall portion 74a to which the holding member 7b is attached. ing. The outflow portion 75 is arranged on one side (X1 side) of the fourth wall portion 74b in the direction (X direction) in which the holding members 7b are arranged.

The storage portion 74 has an internal space 74c and a discharge side mounting portion 74d to which a part of the holding member 7b is mounted. The storage unit 74 stores the purified condensed water CW at least in the holding member 7b inserted into the insertion hole 74f up to a position where the purified condensed water CW stored in the internal space 74c is immersed. As shown in FIGS. 5 and 6, the discharge side mounting portion 74d has a projecting portion 74e projecting in a frame shape toward the internal space 74c side and an insertion hole 74f surrounded by the frame-shaped projecting portion 74e. There is. A plurality (three) of the discharge side mounting portions 74d are formed on the third wall portion 74a, and all have the same configuration.

In the holding member 7b, as shown in FIGS. 7 and 8, the mixed condensed water MW held inside is moved from the condensed water supply unit 7c toward the purified condensed water discharge unit 7d. Further, the holding member 7b holds the mixed condensed water MW supplied from the condensed water supply unit 7c so as to be heat exchangeable with the air for cooling the mixed condensed water MW, and also holds the condensed water supply unit 7c. A portion of the mixed condensed water MW supplied from is held in a vaporizable manner. Specifically, the holding member 7b is made of a porous ceramic. In this way, the surface area of the holding member 7b is increased. As a result, the holding member 7b is configured so that the condensed water MW mixed between the porous surfaces or the surface of the holding member 7b moves and a part of the condensed water MW mixed on the surface is vaporized.

In the condensed water purification cooler 7, as shown in FIG. 2, the porous ceramic holding member 7b is formed in a plate shape. Further, a plurality of holding members 7b are arranged along a direction (X direction) orthogonal to the direction (Z direction) from the condensed water supply unit 7c to the purified condensed water discharge unit 7d. Further, the plurality of holding members 7b are arranged with a gap S between them in order to secure ventilation in each of the holding members 7b.

As a result, as shown in FIG. 7, since ventilation is ensured in each of the plurality of holding members 7b, the condensed water MW mixed on both side surfaces of the plurality of holding members 7b in the line-up direction (X direction). Heat exchange (sensible heat cooling) is performed between air and air. Specifically, when the vehicle is running, sensible heat cooling is performed on both side surfaces in the direction (X direction) in which the plurality of holding members 7b are lined up by the running wind. Further, when the vehicle is stopped, sensible heat cooling is performed on both side surfaces in the direction (X direction) in which the plurality of holding members 7b are arranged by the fins 7a.

Further, as shown in FIG. 8, in each of the plurality of holding members 7b, vaporization cooling is performed in which the mixed condensed water MW takes away heat from the surroundings and vaporizes. Here, since each of the plurality of holding members 7b has good ventilation, vaporization cooling by the mixed condensed water MW is promoted on both side surfaces in the direction (X direction) in which the plurality of holding members 7b are arranged. The same applies to both side surfaces of each of the plurality of holding members 7b in the direction (Y direction) orthogonal to the direction (X direction) in which the plurality of holding members 7b are arranged. As described above, in the condensed water purification cooler 7, the holding member 7b can cool the mixed condensed water MW by sensible heat cooling and vaporization cooling.

In the holding member 7b, as shown in FIG. 9, calcium carbonate is arranged inside as a neutralizing agent 11 for removing and purifying the acidic component contained in the mixed condensed water MW. Here, the ceramic holding member 7b is molded by kneading calcium carbonate at the time of manufacture. As described above, since the holding member 7b contains calcium carbonate as the neutralizing agent 11, in the condensed water purification cooler 7, the mixed condensed water moves from the condensed water supply unit 7c toward the purified condensed water discharge unit 7d. It is possible to purify the MW and generate purified condensed water CW.

In the condensed water purification cooler 7, the upper end portion of the holding member 7b is removably attached to the insertion hole 73f surrounded by the frame-shaped protrusion 73e of the condensed water supply portion 7c, and the lower end portion of the holding member 7b is attached. It is detachably attached to the insertion hole 74f surrounded by the frame-shaped protrusion 74e of the purified condensed water discharge portion 7d. As a result, the holding member 7b can be replaced.

(Effect of this embodiment)
In this embodiment, the following effects can be obtained.

In the present embodiment, the absorption heat pump device 1 purifies and cools the condensed water DW generated by heat exchange between the exhaust gas discharged from the engine and the mixed liquid supplied from the absorber 5. The condensed water purification chiller 7 is provided. As a result, the condensed water DW generated by the heat exchange between the exhaust gas and the mixed liquid can be not only purified but also cooled. As a result, the temperature of the generated condensed water DW can be lowered as compared with the case where the condensed water DW is not cooled, so that the cooling performance by the condensed water DW can be improved.

Further, in the present embodiment, the condensed water purification cooler 7 is configured to vaporize and cool a part of the mixed condensed water MW. As a result, an endothermic reaction occurs in the mixed condensed water MW because a part of the mixed condensed water MW is vaporized. Therefore, the condensed water MW mixed by the amount of heat required for the endothermic reaction occurs. Can be cooled (vaporization cooling). As a result, the temperature of the mixed condensed water MW can be lowered by cooling by the condensed water MW itself (self-cooling by vaporization cooling), so that the configuration of the condensed water purification cooler 7 can be simplified. can.

Further, in the present embodiment, the condensed water purification cooler 7 holds the supplied mixed condensed water MW in a heat exchangeable manner with air, and at the same time, a part of the supplied mixed condensed water MW is used. Includes a holding member 7b that holds the material so that it can be vaporized. As a result, using the holding member 7b, both sensible heat cooling by heat exchange between the mixed condensed water MW and air and vaporization cooling can be performed on the mixed condensed water MW, so that condensation can be performed. The temperature of the water DW can be lowered.

Further, in the present embodiment, the holding member 7b is provided with a neutralizing agent 11 that removes and purifies the acidic component contained in the mixed condensed water MW. As a result, the cooling and purification of the mixed condensed water MW can be performed only by the holding member 7b, so that the configuration of the condensed water purification cooler 7 can be simplified.

Further, in the present embodiment, the condensed water purification cooler 7 stores a certain amount of the mixed condensed water MW supplied to the holding member 7b, and then holds the condensed water MW mixed in the holding member 7b. Further includes a water supply unit 7c. As a result, since a certain amount of the mixed condensed water MW is stored in the condensed water supply unit 7c, the holding member 7b can stably hold the mixed condensed water MW.

Further, in the present embodiment, the mixed condensed water MW can be sensiblely cooled and vaporized and cooled by using only the holding member 7b, and the mixed condensed water MW can be purified. The cooling performance of the mixed condensed water MW can be improved, and the configuration of the condensed water purification cooler 7 can be simplified.

Further, in the present embodiment, the liquid amount measurement for measuring the liquid amount of the tank 21 for storing the mixed condensed water MW supplied to the condensed water purification cooler 7 and the mixed condensed water MW stored in the tank 21. A waste heat recovery device 20 having a unit 22 is further provided. As a result, in the exhaust heat recovery device 20, when the liquid amount of the mixed condensed water MW in the tank 21 becomes equal to or less than the threshold value, the condensed water DW is replenished in the tank 21, so that the condensed water purification cooler 7 is stable. Condensed water MW mixed with can be supplied. As a result, the reduction of the mixed condensed water W due to vaporization in the holding member 7b by the traveling wind and the wind of the fins 7a can be continuously supplied by stably replenishing the mixed condensed water MW.

Further, in the present embodiment, the absorber 5 includes an absorber heat exchanger 5e that exchanges heat between the purified condensed water CW purified and cooled by the condensed water purifying cooler 7 and the absorbing liquid. As a result, the absorbed liquid in which heat of absorption is generated can be cooled by absorbing the low-temperature steam by the purified condensed water CW purified and cooled in the condensed water purification cooler 7.

Further, in the present embodiment, in the condensed water purification cooler 7, in the purified condensed water discharge unit 7d, a part of the holding member 7b is arranged at a position of being immersed in the stored purified condensed water CW. As a result, a part of the holding member 7b is immersed in the purified condensed water CW stored in the storage unit 74, so that the purified condensed water CW can be further purified and cooled.

<Modification example>
It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the above-described embodiment, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims.

For example, in the above embodiment, the condensed water purification chiller 7 is applied to the absorption heat pump device 1 mounted on a vehicle such as a passenger car, a bus, and a truck equipped with an engine, but the present invention is limited to this. No. In the present invention, the condensed water purification cooler may be applied to a gas heat pump device of an air conditioner.

Further, in the above embodiment, the holding member 7b is made of a porous ceramic, but the present invention is not limited to this. For example, the holding member may be made of a material capable of allowing condensed water to flow from above to below, and having a large contact area with air and ensuring air permeability. Specifically, the holding member may be formed of a porous body (foamed resin), a fiber, a non-woven fabric, a resin film, a metal (glass wool), or the like.

Further, in the above embodiment, the holding member 7b has a plate shape, but the present invention is not limited to this. In the present invention, the holding member 207b may be formed by weaving a non-woven fabric in a bellows shape like the condensed water purification cooler 207 of the first modification shown in FIG. In this case, since the shape of the holding member is bellows, the contact area with air is large and air permeability is ensured. In addition, the condensed water that has soaked into the non-woven fabric can move downward. Further, by fixing the neutralizing agent on the non-woven fabric, the condensed water can be purified.

Further, in the above embodiment, a plurality of holding members 7b are arranged along a direction (X direction) orthogonal to the direction (Z direction) from the condensed water supply unit 7c to the purified condensed water discharge unit 7d. The invention is not limited to this. In the present invention, a plurality of holding members may be arranged along the direction (Z direction) from the condensed water supply unit to the purified condensed water discharge unit. That is, the holding members may be laminated along the vertical direction (Z direction).

Further, in the above embodiment, the neutralizing agent 11 is kneaded into the holding member 7b, but the present invention is not limited to this. In the present invention, the neutralizing agent may be adhered to the molded holding member.

Further, in the above embodiment, the neutralizing agent 11 is calcium carbonate, but the present invention is not limited to this. In the present invention, the neutralizing agent may be an alkaline substance (magnesium hydroxide or caustic soda) capable of neutralizing acidic condensed water.

Further, in the above embodiment, the condensed water purification cooler 7 has fins 7a, but the present invention is not limited to this. In the present invention, the condensed water purification cooler does not have to include fins.

Further, in the above embodiment, the condensed water purification cooler 7 impregnates the holding member 7b with the condensed water DW, but the present invention is not limited to this. In the present invention, the holding member may be sprayed with condensed water.

Further, in the above embodiment, the tank 21 is arranged in the cooling water circulation circuit unit 61 and the condensed water supply circuit unit 8 to store the mixed condensed water MW, but the present invention is not limited to this. As shown in FIG. 11, the tank 321 may be arranged only in the condensed water supply circuit unit 308, and the condensed water DW may be stored. Specifically, the absorption type heat pump device 301 of the second modification further includes a condensed water supply circuit unit 308 for connecting the heating unit 302a and the condensed water purification cooler 307, in addition to the cooling water circulation circuit unit 361. There is. In the absorption type heat pump device 301, the purified condensed water CW obtained by purifying and cooling the condensed water DW generated in the heating unit 302a by using the condensed water purification cooler 307 circulates in the cooling water circulation circuit unit 361. The condensed water purification cooler 307 of the absorption type heat pump device 301 purifies the condensed water DW supplied from the condensed water supply circuit unit 308, and purifies the purified water CW and the condensed water supply circuit unit 308 circulating in the cooling water circulation circuit unit 361. It is configured to cool the condensed water DW supplied from.

1,201,301 Absorption heat pump device 2 Regenerator 2b Gas-liquid separator 3 Condensator 4 Evaporator 5 Absorber 5e Heat exchanger for absorber (heat exchanger)
7, 207, 307 Condensed water purification cooler (condensed water purification cooling device)
7b, 207b Holding member 7c Condensed water supply unit 7d Purified condensed water discharge unit 20 Exhaust heat recovery device 21,321 Tank 22 Liquid volume measuring unit CW, W Purified cooling water DW, MW, W Condensed water

Claims (4)

A regenerator including a gas-liquid separator that separates the refrigerant from the mixed liquid containing the refrigerant and the absorbing liquid.
A condenser that condenses the refrigerant separated from the mixed liquid in the gas-liquid separation unit, and
An evaporator that evaporates the refrigerant condensed in the condenser, and
An absorber that absorbs the refrigerant evaporated by the evaporator into the absorbent liquid separated from the mixed liquid in the gas-liquid separation unit.
A condensed water purification cooler that purifies and cools the condensed water generated from the exhaust gas due to heat exchange between the exhaust gas discharged from the engine and the mixed liquid supplied from the absorber. Prepare ,
The condensed water purifier cooler, the part of the condensed water by vaporizing that is configured to cool the condensed water, the absorption heat pump system. The condensed water purifier cooler, together with the condensed water to be supplied to hold air heat interchangeably, includes a retaining member vaporizable to retain a portion of said condensed water to be supplied, according to claim 1 The absorption type heat pump device described in. The absorption heat pump device according to claim 2 , wherein a neutralizing agent for removing and purifying an acidic component contained in the condensed water is arranged on the holding member. According to claim 2 or 3 , the condensed water purification cooler further includes a condensed water supply unit that stores the condensed water supplied to the holding member in a certain amount and then causes the holding member to hold the condensed water. The absorption type heat pump device described.

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