JP2017172870A - Absorption heat pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorption heat pump suppressed in height.SOLUTION: An absorption heat pump includes an absorber producing a fluid mixture by heating a liquid in a heat transfer pipe by absorption heat generated when an absorbing liquid absorbs vapor of a refrigerant, and a gas-liquid separator 60. The gas-liquid separator 60 has a can body 61 long in a horizontal direction, a collision wall 63 with which the fluid mixture Wm mixed in the can body 61 from an inflow port 61a collides, and a bypass formation member 65 forming a bypass for increasing a distance to an outflow port 61b, of the fluid Wm after the collision with the collision wall 63. The inflow port 61a, the outflow port 61b and the collision wall 63 are formed at places higher than a maximum liquid level WLH. The bypass formation member 65 is disposed to change a flowing direction of the fluid Wm after the collision with the collision wall 63 through an end portion 65e in the horizontal direction of the bypass formation member 65, and a passing flow channel 68 through which the fluid Wm passes, is formed between the bypass formation member 65 and the can body 61 at the end portion 65e.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an absorption heat pump, and more particularly to an absorption heat pump with a suppressed height.

  As a heat source machine for taking out a heated medium having a temperature higher than the driving heat source temperature, there is a second type absorption heat pump. The second type absorption heat pump mainly includes an evaporator for evaporating refrigerant liquid, an absorber for absorbing refrigerant vapor with the absorbing liquid, a regenerator for removing the refrigerant from the absorbing liquid, and a condenser for condensing the refrigerant vapor. The liquid in the heated medium can be heated and evaporated by the heat generated when the absorbing liquid absorbs the refrigerant vapor in the absorber, and the heated medium is introduced and the vapor and liquid in the heated medium are introduced. And a gas-liquid separator for separating the gas and liquid. As such an absorption heat pump, an absorber and an evaporator are disposed higher than the regenerator and the condenser, and a vertically long gas-liquid separator that secures a volume necessary for gas-liquid separation in the height direction. There is one in which the gas phase part is arranged so as to be higher than the uppermost part of the main component equipment (for example, see Patent Document 1).

JP 2010-164248 A (paragraph 0026, FIG. 1, etc.)

  Since the absorption heat pump described in Patent Document 1 is arranged such that the gas phase part of the vertically long gas-liquid separator is higher than the uppermost part of the main configuration, the height of the entire absorption heat pump becomes too high. Since the vertical gas-liquid separator has a relatively small horizontal cross-sectional area, a volume necessary for gas-liquid separation is secured further above the upper limit liquid level to cope with a relatively large liquid level change. The height is further increased, and the installation conditions are restricted.

  An object of this invention is to provide the absorption heat pump which suppressed height in view of the above-mentioned subject.

  In order to achieve the above object, the absorption heat pump according to the first aspect of the present invention uses the absorbed heat generated when the absorbing liquid Sa absorbs the refrigerant vapor Ve, as shown in FIGS. 1 and 2, for example. An absorber 10 that heats the liquid Wq in the heat transfer tube 12 to generate a mixed fluid Wm in which the gas and the liquid are mixed; and a gas-liquid separator 60 that separates the gas Wv and the liquid Wq from the mixed fluid Wm. The gas-liquid separator 60 (see FIG. 2) is a can body 61 that is long in the horizontal direction, and has an inlet 61a into which the mixed fluid Wm flows and a post-separation gas Wv that is a gas separated from the mixed fluid Wm. The outflow port 61b that flows out is a can body 61 that is formed at a position higher than the highest liquid level WLH that can be reached by the separated liquid Wq that is a liquid separated from the mixed fluid Wm, and the can body 61 from the inflow port 61a. Collide the mixed fluid Wm that has flowed into Collision wall 63 provided at a position higher than the highest liquid level WLH that can be reached by liquid Wq after separation, and projecting wall 63 until fluid Wm after colliding with collision wall 63 reaches outlet 61b. A detour forming member 65 that forms a detour that increases the path, and the detour forming member 65 winds the fluid Wm after the collision around the collision wall 63 around the horizontal end 65e of the detour forming member 65. The fluid Wm after the collision passes through the collision wall 63 between the detour forming member 65 and the can body 61 at the horizontal end portion 65e of the detour forming member 65. A passage channel 68 is formed.

  If comprised in this way, since the can body of a gas-liquid separator is formed long horizontally, it can secure the gas-liquid separation performance of mixed fluid, suppressing the height of the can body of a gas-liquid separator. It is possible to provide an absorption heat pump that suppresses the height.

  Moreover, the absorption heat pump which concerns on the 2nd aspect of this invention is the length of the horizontal direction of the can body 61 in the absorption heat pump 1 which concerns on the said 1st aspect of this invention, for example, as shown in FIG.1 and FIG.2. Is configured to be equal to or shorter than the horizontal length of the heat transfer tube 12; the can body 61 is disposed above the uppermost portion of the heat transfer tube 12.

  If comprised in this way, it will become an absorption heat pump with sufficient accommodation.

  Moreover, the absorption heat pump according to the third aspect of the present invention is, for example, as shown in FIG. 2, in the absorption heat pump according to the first aspect or the second aspect of the present invention, the fluid after collision with the collision wall 63. A guide member 66 for guiding Wm downward is provided.

  If comprised in this way, the flow direction of the fluid after a collision to a collision wall can be changed in multiple times, and gas-liquid separation performance can be improved.

  Moreover, the absorption heat pump which concerns on the 4th aspect of this invention is an inflow port in the absorption heat pump which concerns on any one aspect of the said 1st aspect thru | or 3rd aspect of this invention, as shown, for example in FIG. 61a and the outlet 61b are formed in the center part in the horizontal direction of the can body 61; the passage channel 68 is formed in the both ends 65e in the horizontal direction of the detour forming member 65.

  If comprised in this way, it will become possible to shorten the length of the horizontal direction of a can body.

  Moreover, the absorption heat pump according to the fifth aspect of the present invention is the absorption heat pump according to any one of the first to third aspects of the present invention, as shown in FIGS. 3 and 4, for example. The inlets 61a, 161a and the outlets 61b, 161b are formed close to one end in the horizontal direction of the can bodies 61, 161; the passages 68, 168 are formed in the horizontal direction of the detour forming members 65, 165, It is formed in the edge parts 65e and 165e on the opposite side to the inflow ports 61a and 161a.

  If comprised in this way, separation space can be taken comparatively long and gas-liquid separation performance can be improved.

  According to the present invention, since the can body of the gas-liquid separator is formed long in the horizontal direction, it is possible to ensure the gas-liquid separation performance of the mixed fluid while suppressing the height of the can body of the gas-liquid separator. It is possible to provide an absorption heat pump that suppresses the height.

1 is a schematic system diagram of an absorption heat pump according to an embodiment of the present invention. (A) is a front longitudinal cross-sectional view of the gas-liquid separator with which the absorption heat pump which concerns on embodiment of this invention is equipped, (B) is IIB-IIB arrow directional cross-sectional view in (A). It is a front longitudinal cross-sectional view of the gas-liquid separator which concerns on the 1st modification with which the absorption heat pump which concerns on embodiment of this invention is provided. (A) is a front longitudinal cross-sectional view of the gas-liquid separator which concerns on the 2nd modification with which the absorption heat pump which concerns on embodiment of this invention is equipped, (B) is IVB-IVB arrow directional cross-sectional view in (A). . It is a typical systematic diagram of the two-stage temperature rising type absorption heat pump which concerns on the modification of embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or similar members are denoted by the same or similar reference numerals, and redundant description is omitted.

  First, an absorption heat pump 1 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic system diagram of the absorption heat pump 1. The absorption heat pump 1 includes an absorber 10, an evaporator 20, a regenerator 30, and a condenser that constitute a main device in which an absorption heat pump cycle of the absorption liquid S (Sa, Sw) and the refrigerant V (Ve, Vg, Vf) is performed. A gas-liquid separator 60 is further provided.

In the present specification, the absorption liquid is referred to as “dilute solution Sw”, “concentrated solution Sa” or the like in accordance with the property or the position on the heat pump cycle in order to facilitate distinction on the heat pump cycle. In general, the term “absorbing liquid S” is used. Similarly, regarding the refrigerant, in order to easily distinguish on the heat pump cycle, “evaporator refrigerant vapor Ve”, “regenerator refrigerant vapor Vg”, “refrigerant liquid Vf”, etc., depending on the properties and the position on the heat pump cycle. However, when the properties and the like are not asked, they are collectively referred to as “refrigerant V”. In the present embodiment, an LiBr aqueous solution is used as the absorbing liquid S (a mixture of the absorbent and the refrigerant V), and water (H ₂ O) is used as the refrigerant V. The heated medium W includes a heated medium liquid Wq, which is a liquid heated medium W supplied to the absorber 10, a heated medium vapor Wv, which is a gaseous heated medium W, and a liquid and a gas. This is a generic term for the mixed heated medium Wm, which is the heated medium W in a state, and the replenishing water Ws as the replenishing liquid, which is the heated medium W supplemented from outside the absorption heat pump 1. In the present embodiment, water (H ₂ O) is used as the heating medium W.

  The absorber 10 includes therein a heat transfer tube 12 that forms a flow path of the heated medium W and a concentrated solution spray nozzle 13 that sprays the concentrated solution Sa. The absorber 10 generates heat of absorption when the concentrated solution Sa is sprayed from the concentrated solution spray nozzle 13 and the concentrated solution Sa absorbs the evaporator refrigerant vapor Ve. The heated medium W flowing through the heat transfer tube 12 receives this absorbed heat so that the heated medium W is heated.

  The evaporator 20 has a heat source pipe 22 constituting a flow path of the heat source hot water h as a heat source fluid in the evaporator can body 21. The evaporator 20 does not have a nozzle for spraying the refrigerant liquid Vf inside the evaporator can body 21. For this reason, the heat source pipe 22 is disposed so as to be immersed in the refrigerant liquid Vf stored in the evaporator can body 21 (full liquid evaporator). In the absorption heat pump, since the pressure in the evaporator is higher than that of the absorption refrigerator, it is possible to obtain a desired refrigerant vapor even in a configuration in which the heat source tube is immersed in the refrigerant liquid. The evaporator 20 is configured so that the refrigerant liquid Vf around the heat source pipe 22 is evaporated by the heat of the heat source hot water h flowing in the heat source pipe 22 to generate the evaporator refrigerant vapor Ve. A refrigerant liquid pipe 45 that supplies the refrigerant liquid Vf into the evaporator can body 21 is connected to the lower portion of the evaporator can body 21.

  The absorber 10 and the evaporator 20 are in communication with each other. By connecting the absorber 10 and the evaporator 20, the evaporator refrigerant vapor Ve generated in the evaporator 20 can be supplied to the absorber 10.

  The regenerator 30 has a heat source pipe 32 for flowing heat source hot water h as a heat source fluid for heating the dilute solution Sw, and a dilute solution spray nozzle 33 for spraying the dilute solution Sw. The heat source hot water h flowing in the heat source pipe 32 is the same fluid as the heat source hot water h flowing in the heat source pipe 22 in the present embodiment, but may be a different fluid. The regenerator 30 heats the dilute solution Sw sprayed from the dilute solution spray nozzle 33 to the heat source hot water h, so that the concentrated solution Sa having an increased concentration is generated from the dilute solution Sw by evaporating the refrigerant V. It is configured. The refrigerant V evaporated from the dilute solution Sw is configured to move to the condenser 40 as a regenerator refrigerant vapor Vg.

  The condenser 40 has a cooling water pipe 42 through which the cooling water c as a cooling medium flows inside the condenser can body 41. The condenser 40 is configured to introduce the regenerator refrigerant vapor Vg generated in the regenerator 30, cool it with the cooling water c, and condense it. The can body of the regenerator 30 and the condenser can body 41 are integrally formed so that the regenerator 30 and the condenser 40 communicate with each other. By connecting the regenerator 30 and the condenser 40, the regenerator refrigerant vapor Vg generated in the regenerator 30 can be supplied to the condenser 40.

  The portion where the concentrated solution Sa of the regenerator 30 is stored and the concentrated solution spray nozzle 13 of the absorber 10 are connected by a concentrated solution pipe 35 through which the concentrated solution Sa flows. The concentrated solution pipe 35 is provided with a solution pump 35p that pumps the concentrated solution Sa. The portion of the absorber 10 where the dilute solution Sw is stored and the dilute solution spray nozzle 33 are connected by a dilute solution tube 36 through which the dilute solution Sw flows. The concentrated solution tube 35 and the diluted solution tube 36 are provided with a solution heat exchanger 38 that performs heat exchange between the concentrated solution Sa and the diluted solution Sw. The portion of the condenser 40 where the refrigerant liquid Vf is stored and the lower portion (typically the bottom portion) of the evaporator can body 21 are connected by a refrigerant liquid pipe 45 through which the refrigerant liquid Vf flows. The refrigerant liquid pipe 45 is provided with a refrigerant pump 46 that pumps the refrigerant liquid Vf.

  A heat source hot water introduction pipe 51 for introducing the heat source hot water h into the heat source pipe 22 is connected to one end of the heat source pipe 22 of the evaporator 20. The other end of the heat source pipe 22 and one end of the heat source pipe 32 of the regenerator 30 are connected by a heat source hot water communication pipe 52. The other end of the heat source pipe 32 is connected to a heat source hot water outflow pipe 53 that guides the heat source hot water h to the outside of the absorption heat pump 1. The heat source hot water outlet pipe 53 is provided with a heat source hot water switching valve 53v capable of adjusting the flow rate of the heat source hot water h flowing inside. A heat source warm water bypass pipe 55 is provided between the heat source warm water outlet pipe 53 and the heat source warm water introduction pipe 51 on the downstream side of the heat source warm water switching valve 53v. The heat source hot water bypass pipe 55 is provided with a bypass valve 55v that can open and close the flow path.

  The gas-liquid separator 60 is a device that introduces the mixed heated medium Wm as a mixed fluid heated by flowing through the heat transfer tube 12 of the absorber 10 and separates the heated medium vapor Wv and the heated medium liquid Wq. is there. The gas-liquid separator 60 is connected to a lower part (typically the bottom part) of a separation liquid pipe 81 through which the separated heated medium liquid Wq flows out from the gas-liquid separator 60. The other end of the separation liquid pipe 81 is connected to a heated medium liquid pipe 82 that guides the heated medium liquid Wq to the heat transfer pipe 12. The other end of the heat transfer tube 12 and the gas phase portion of the gas-liquid separator 60 are connected by a heated medium tube 84 after heating that guides the mixed heated medium Wm to the gas-liquid separator 60. Further, the gas-liquid separator 60 has a heated medium vapor pipe 89 as a supply vapor pipe that guides the separated heated medium vapor Wv to the outside of the absorption heat pump 1 toward a demand destination (typically, a top portion). )It is connected to the. Further, a replenishment water pipe 85 is provided for introducing replenishment water Ws for supplementing the medium W to be heated, which is mainly supplied as vapor outside the absorption heat pump 1, from outside the absorption heat pump 1. In the present embodiment, the makeup water pipe 85 is connected to a connection portion between the separation liquid pipe 81 and the heated medium liquid pipe 82, and supplies the makeup water Ws to the heated medium liquid Wq flowing through the separation liquid pipe 81. It is comprised so that it may merge. The makeup water pipe 85 is provided with a makeup water pump 86 that pumps the makeup water Ws toward the absorber 10.

  Here, the structure of the gas-liquid separator 60 will be described with reference to FIG. 2A is a front longitudinal sectional view of the gas-liquid separator 60, and FIG. 2B is a sectional view taken along the arrow IIB-IIB in FIG. Show. The gas-liquid separator 60 includes a can body 61, a counter plate 63, a partition plate 65, and a partition plate 66 provided inside the can body 61. The can body 61 is formed in a cylindrical shape that is long in the horizontal direction. Therefore, the end plate 61e of the can body 61 corresponding to both cylindrical end faces is formed in a circular shape. The cylindrical shape that is long in the horizontal direction is a state in which the axis 61x of the cylinder is horizontal. Further, being long in the horizontal direction means being horizontally long, which means that the maximum horizontal cross-sectional area is larger than the maximum area in a vertical cross-section that is a cross section perpendicular to the horizontal axis 61x. In the present embodiment, the can body 61 is formed such that the horizontal length is equal to or less than the horizontal length of the heat transfer tube 12 in the absorber 10. Moreover, in this Embodiment, the absorber 10 is comprised so that the to-be-heated medium W which the heat exchanger tube 12 may be horizontally arrange | positioned inside the absorber 10 and flows through the inside of the heat exchanger tube 12 may flow upwards from the downward | lower direction. Has been. The can body 61 of the gas-liquid separator 60 is arranged so that the horizontal axis 61 x is parallel to the heat transfer tube 12.

  The can body 61 has an inlet 61a into which the mixed heated medium Wm flows, a vapor outlet 61b as an outlet from which the heated medium vapor Wv corresponding to the separated gas flows out, and a covered corresponding to the separated liquid. A liquid outlet 61c through which the heating medium liquid Wq flows is formed. The inlet 61a, the steam outlet 61b, and the liquid outlet 61c are typically formed on a surface (a surface other than the end plate 61e) that extends in the horizontal direction of the can body 61. In the present embodiment, It is formed at the center in the horizontal direction. In addition, the inlet 61a and the steam outlet 61b are formed above the highest liquid level WLH that the heated medium liquid Wq can reach in the can body 61. In this embodiment, the inlet 61a is an axis. It is formed on the side surface of the can body 61 that is slightly higher than the height of 61x (the lower end of the inflow port 61a is generally at the height of the axis 61x), and the steam outflow port 61b is formed at the top of the can body 61. The liquid outlet 61c is preferably formed below the highest liquid level WLH from the viewpoint of smoothly flowing out the heated medium liquid Wq stored in the lower portion of the can body 61, and the uppermost part of the liquid outlet 61c is the highest. More preferably, it is formed below the liquid level WLH, and is formed at the bottom of the can body 61 in the present embodiment. A heated medium pipe 84 is connected horizontally to the inlet 61a, a heated medium vapor pipe 89 is connected vertically to the vapor outlet 61b, and a separation liquid pipe 81 is connected to the liquid outlet 61c. Connected vertically.

  The counter plate 63 is a rectangular flat plate member that collides the mixed heated medium Wm flowing from the inflow port 61a, and corresponds to a collision wall. In the present embodiment, the opposing plate 63 is located inside the can body 61 so that the normal line is horizontal (so that the surface extends vertically) at a position facing away from the inflow port 61a in the horizontal direction. It is arranged. In the present embodiment, the upper side of the counter plate 63 is in contact with the inner wall of the can body 61 below the steam outlet 61b, but may not be in contact with the inner wall. The counter plate 63 is provided at a higher position than the highest liquid level WLH. The counter plate 63 being provided higher than the highest liquid level WLH means that the lowermost part of the counter plate 63 is provided above the highest liquid level WLH. By providing the counter plate 63 in this way, a fluid flow path is secured below the counter plate 63. The width (length in the horizontal direction) of the counter plate 63 is approximately 1.5 to 3 times, typically 2 times, the width (length in the horizontal direction) of the inflow port 61a.

  The partition plate 65 is a plate-like member that makes a detour in the can body 61 so that the mixed heated medium Wm that flows in from the inlet 61a does not immediately flow out of the steam outlet 61b, and corresponds to a detour forming member. The partition plate 65 is disposed at a position in the can body 61 that partitions a space communicating with the inflow port 61a and a space communicating with the steam outflow port 61b. In the cross section perpendicular to the axis 61x (see FIG. 2B), the partition plate 65 has one end connected to the upper end (upper side) of the counter plate 63, the surface extending horizontally, and the other end connected to the inlet 61a. It is in contact with the inner wall of the upper can body 61. Further, in the longitudinal section parallel to the axis 61x (see FIG. 2A), the partition plate 65 is positioned in the vicinity of the end plate 61e where the surfaces extend horizontally and both ends do not reach the end plate 61e of the can body 61. doing. As a result, a passage channel 68 through which fluid can pass is formed between the partition plate ends 65e and the end plate 61e on both sides. The width (gap) of the passage channel 68 may be determined so that the resistance does not increase excessively in consideration of the flow rate of the fluid passing therethrough.

  The partition plate 66 is a flat plate-like member that guides the mixed heated medium Wm that flows in from the inlet 61a and collides with the counter plate 63 downward, and corresponds to a guide member. The partition plate 66 is disposed below the partition plate 65 at a position that partitions a space communicating with the inflow port 61a and a space adjacent to the horizontal direction. In the longitudinal section parallel to the axis 61x (see FIG. 2A), the partition plate 66 has one each on the left and right sides (vertically extending sides) of the opposing plate 63, and two in total, and the normal is the axis 61x. It is provided so that it may become parallel. Each partition plate 66 has a straight upper side in contact with the partition plate 65 in a cross section perpendicular to the axis 61x (see FIG. 2B), and the lower side extends linearly above the highest liquid level WLH. The side opposite to the side in contact with the counter plate 63 is in contact with the inner wall of the can body 61 next to the inflow port 61a. In the present embodiment, each partition plate 66 has a lower side that is the same height as the lower side of the opposing plate 63, but may be a height that is different from the lower side of the opposing plate 63.

  As shown in FIG. 1, the gas-liquid separator 60 configured as described above has a can body 61 disposed above the uppermost portion of the heat transfer tube 12 and above the concentrated solution spray nozzle 13. The can body 61 of the gas-liquid separator 60 has a horizontal length that is less than or equal to the horizontal length of the heat transfer tube 12 in the absorber 10, and therefore fits within the width of the can body of the absorber 10. It will be.

  With continued reference to FIG. 1, the operation of the absorption heat pump 1 will be described. During the steady operation of the absorption heat pump 1, the heat source hot water switching valve 53v is open and the bypass valve 55v is closed. First, the refrigerant side cycle will be described. In the condenser 40, the regenerator refrigerant vapor Vg evaporated in the regenerator 30 is received, cooled and condensed with the cooling water c flowing through the cooling water pipe 42, and the refrigerant liquid Vf is obtained. The condensed refrigerant liquid Vf is sent to the evaporator can body 21 by the refrigerant pump 46. The refrigerant liquid Vf sent to the evaporator can body 21 is heated by the heat source hot water h flowing in the heat source pipe 22 and evaporated to become the evaporator refrigerant vapor Ve. The evaporator refrigerant vapor Ve generated in the evaporator 20 moves to the absorber 10 that communicates with the evaporator 20.

  Next, the solution side cycle will be described. In the absorber 10, the concentrated solution Sa is sprayed from the concentrated solution spray nozzle 13, and the sprayed concentrated solution Sa absorbs the evaporator refrigerant vapor Ve that has moved from the evaporator 20. The concentrated solution Sa that has absorbed the evaporator refrigerant vapor Ve is reduced in concentration to become a diluted solution Sw. In the absorber 10, heat of absorption is generated when the concentrated solution Sa absorbs the evaporator refrigerant vapor Ve. The heated medium W flowing through the heat transfer tube 12 is heated by the absorbed heat. The concentrated solution Sa that has absorbed the evaporator refrigerant vapor Ve by the absorber 10 is reduced in concentration to become the diluted solution Sw, and is stored in the lower part of the absorber 10. The stored diluted solution Sw flows through the diluted solution tube 36 toward the regenerator 30 due to the difference in internal pressure between the absorber 10 and the regenerator 30, and heat-exchanges with the concentrated solution Sa in the solution heat exchanger 38, so that the temperature is Decreases and reaches the regenerator 30.

  The dilute solution Sw sent to the regenerator 30 is sprayed from the dilute solution spray nozzle 33, heated by the heat source hot water h (about about 80 ° C. in the present embodiment) flowing through the heat source pipe 32, and sprayed dilute solution Sw. The refrigerant inside evaporates into a concentrated solution Sa and is stored in the lower part of the regenerator 30. On the other hand, the refrigerant V evaporated from the dilute solution Sw moves to the condenser 40 as a regenerator refrigerant vapor Vg. The concentrated solution Sa stored in the lower part of the regenerator 30 is pumped to the concentrated solution spray nozzle 13 of the absorber 10 through the concentrated solution tube 35 by the solution pump 35p. The concentrated solution Sa flowing through the concentrated solution pipe 35 is heat-exchanged with the diluted solution Sw by the solution heat exchanger 38 and rises in temperature, and then flows into the absorber 10 and is sprayed from the concentrated solution spray nozzle 13. The concentrated solution Sa is pressurized by the solution pump 35 p and enters the absorber 10, and the temperature rises as the evaporator refrigerant vapor Ve is absorbed in the absorber 10. The concentrated solution Sa returned to the absorber 10 absorbs the evaporator refrigerant vapor Ve and thereafter repeats the same cycle.

  In the process in which the absorption liquid S and the refrigerant V perform the absorption heat pump cycle as described above, the heated medium liquid Wq is heated by the absorption heat generated when the concentrated solution Sa absorbs the evaporator refrigerant vapor Ve in the absorber 10. Thus, it becomes wet steam (mixed heated medium Wm), and after heating, is led to the gas-liquid separator 60 via the heated medium pipe 84. The mixed heated medium Wm flowing into the gas-liquid separator 60 is separated into the heated medium vapor Wv and the heated medium liquid Wq in the following manner.

  Here, the operation in the gas-liquid separator 60 will be described with reference to FIG. After heating, the mixed heated medium Wm flowing through the heated medium pipe 84 and flowing horizontally into the can body 61 from the inlet 61 a collides with the counter plate 63. The mixed heated medium Wm that has collided with the opposing plate 63 changes its flow direction downward because the partition plate 65 exists above and the partition plate 66 exists on both sides. At this time, the mixed heated medium Wm becomes a first-stage gas (heated medium vapor Wv) by collision with the counter plate 63 and by changing the flow direction from the horizontal direction to the lower direction before and after the collision. Separation from the liquid (heated medium liquid Wq) is performed. Typically, a part of the heated medium liquid Wq contained in the mixed heated medium Wm is separated and dropped and collected at the bottom of the can body 61.

  The mixed heated medium Wm that flows downward in the space surrounded by the counter plate 63 and the partition plate 66 reverses the lower end of the partition plate 66 and changes the flow direction from the downward direction to the horizontal direction. By changing the direction of the flow from the downward direction to the horizontal direction, the separation of the gas and the liquid in the second stage (separation and dropping of a part of the heated medium liquid Wq contained in the mixed heated medium Wm) ) Is performed. In this embodiment, since the inflow port 61a is formed at the central portion in the horizontal direction of the can body 61, the flow that reverses the lower end of the partition plate 66 and changes the direction from the lower direction to the horizontal direction is divided into two left and right. Divided into flows. The mixed heated medium Wm divided into the left and right parts flows substantially horizontally toward the end plates 61e at both ends of the can body 61, respectively. The flow path of the mixed heated medium Wm that flows substantially horizontally below the partition plate 65 has a cross-sectional area close to a cross section orthogonal to the axis 61 x of the can body 61. The flow rate of the mixed heated medium Wm flowing through one of the two horizontal flow paths formed on both sides from the position of the counter plate 63 is the flow rate of the mixed heated medium Wm flowing from the inflow port 61a. Therefore, the flow velocity of the fluid flowing through this flow path is reduced, and the effect of gas-liquid separation can be enhanced. The mixed heated medium Wm flows substantially horizontally below the partition plate 65, thereby separating the third stage gas and liquid (part of the heated medium liquid contained in the mixed heated medium Wm). Wq separation and dropping) is performed.

  When the mixed heated medium Wm that flows substantially horizontally below the partition plate 65 toward the end plate 61e of the can body 61 reaches the vicinity of the end plate 61e, the flow direction of the mixed heated medium Wm is changed to go upward along the surface of the end plate 61e. . By changing the direction of the flow from the substantially horizontal direction to the upward direction, the separation of the fourth stage gas (heated medium vapor Wv) and liquid (heated medium liquid Wq) is performed. The separated heated medium vapor Wv that flows upward along the surface of the end plate 61 e passes through the passage passage 68 and is formed between the upper wall of the can body 61 formed above the partition plate 65 and the partition plate 65. It flows through the flow path between them and flows out of the can body 61 through the steam outlet 61b. Thus, the fluid flowing in from the inflow port 61a flows so as to wind around the partition plate 65 until it flows out from the steam outlet 61b, and the flow path formed around the partition plate 65 corresponds to a detour. . On the other hand, the separated heated medium liquid Wq falls and accumulates in the lower portion of the can body 61. The heated medium liquid Wq separated from the mixed heated medium Wm flowing in from the inlet 61a in the process of generating the heated medium vapor Wv flowing out from the vapor outlet 61b and accumulated in the lower portion of the can body 61 is Then, it flows out of the can body 61 through the liquid outlet 61c.

  As described above, the gas-liquid separator 60 included in the absorption heat pump 1 according to the present embodiment has at least four stages of gas-liquid separation mechanisms, and therefore is separated from the mixed heated medium Wm and is discharged from the vapor outlet. It can suppress that a droplet accompanies the to-be-heated medium vapor | steam Wv which flows out from 61b, and can supply a high quality vapor | steam. In particular, in the third stage gas-liquid separation in which the mixed heated medium Wm flows substantially horizontally below the partition plate 65, the entire length of the can 61 is extended in the direction of the axis 61x in the horizontal direction. By extending the overall length of the can body 61, the gas-liquid separation effect can be enhanced while suppressing the height of the can body 61 (without increasing it).

  Further, due to a change in the amount of heat source supplied to the absorption heat pump 1 from the outside, there is an imbalance between the flow rate of the mixed heated medium Wm flowing into the gas-liquid separator 60 and the flow rate of the heated heated medium liquid Wq. If it exists, the liquid level of the to-be-heated medium liquid Wq will change with the quantity of the to-be-heated medium liquid Wq stored in the gas-liquid separator 60 changing. The horizontal cross-sectional area of the gas-liquid separator 60 in the present embodiment that is long in the horizontal direction is several times larger than the horizontal cross-sectional area of the conventional vertical gas-liquid separator. Then, regarding the change in the liquid level with respect to the change in the amount of the heated medium liquid Wq stored in the gas-liquid separator 60, the gas-liquid separator 60 in the present embodiment that is long in the horizontal direction is the conventional vertical type. The gas-liquid separator is smaller than a fraction of the reciprocal of the ratio of the horizontal cross-sectional area. Since the liquid level of the gas-liquid separator 60 of the present embodiment with a small change in liquid level is stable, good gas-liquid separation can be performed.

  Returning to FIG. 1 again, the description of the operation of the absorption heat pump 1 will be continued. The heated medium vapor Wv separated by the gas-liquid separator 60 flows out to the heated medium vapor pipe 89 and is supplied to a steam utilization place (a customer) outside the absorption heat pump 1. That is, the heated medium vapor Wv is taken out from the absorption heat pump. Thus, the absorption heat pump 1 is configured as a second type absorption heat pump that can take out the heated medium W that is equal to or higher than the temperature of the drive heat source. The heated medium W supplied to the outside is supplied from the outside of the absorption heat pump 1 as makeup water Ws. On the other hand, the heated medium liquid Wq separated by the gas-liquid separator 60 flows out into the separation liquid pipe 81 and merges with the replenishing water Ws flowing through the replenishing water pipe 85 to be heated as the heated medium liquid Wq. It flows through the liquid pipe 82 and is supplied into the heat transfer pipe 12. In addition, each apparatus which comprises the absorption heat pump 1 mentioned above is controlled by a control apparatus (not shown).

  As described above, according to the absorption heat pump 1 according to the present embodiment, the gas of the mixed heated medium Wm in the gas-liquid separator 60 is suppressed while suppressing the height of the can body 61 of the gas-liquid separator 60. Liquid separation performance can be secured and the height of the absorption heat pump 1 can be suppressed. Further, the horizontal length of the can body 61 of the gas-liquid separator 60 is configured to be equal to or less than the horizontal length of the heat transfer tube 12, and the can body 61 is disposed above the uppermost portion of the heat transfer tube 12. Therefore, the absorption heat pump 1 can be obtained. Further, by arranging the can body 61 of the gas-liquid separator 60 above the uppermost portion of the heat transfer tube 12 of the absorber 10, the medium to be heated is interposed between the gas-liquid separator 60 and the heat transfer tube 12 of the absorber 10. The heating medium W can be circulated by the bubble pump effect without providing a pump for circulating W.

  In the above description, the inlet 61a and the steam outlet 61b are formed in the central portion in the horizontal direction of the can body 61. However, the central portion does not have to be exactly the center, and is typically a counter plate. It is only necessary that the flow velocity of the fluid after colliding with 63 is formed in the center in a range that is equal within a permissible range at the partition plate end 65e that is both ends of the partition plate 65. Alternatively, the position of the inflow port 61a in the horizontal direction may be formed by moving from the central portion of the can body 61 to the one end plate 61e side (typically approximately in the middle between the center portion and the end plate 61e). Good. In this case, the flow rate of the fluid divided into two by reversing the lower end of the partition plate 66 is not uniform, but the flow path from the partition plate 66 to the passage flow path 68 is formed on the longer side. If the width of the passage passage 68 is wider than the width of the other passage passage 68, a larger flow rate flows from the partition plate 66 to the passage passage 68 in the longer direction, and the long passage sufficiently absorbs air. Liquid separation can be performed. On the other hand, since the flow rate flowing in the short flow path is reduced, sufficient gas-liquid separation can be performed even if the flow path is short. Further, the position of the steam outlet 61b in the horizontal direction is not limited to the central portion of the can body 61, and may be formed at any position within the range where the partition plate 65 is disposed. However, the steam outlet 61b is preferably formed at an equal distance from the passage channels 68 on both sides.

  Further, as shown in FIG. 3, the inlet 61a and the steam outlet 61b may be arranged close to one end plate 61en. FIG. 3 is a front longitudinal sectional view of a gas-liquid separator 60A according to the first modification. The difference between the gas-liquid separator 60A and the gas-liquid separator 60 (see FIG. 2) includes the following matters in addition to the horizontal positions of the inlet 61a and the steam outlet 61b described above. The gas-liquid separator 60A is extended until the partition plate 65 contacts the end plate 61en on the side where the inlet 61a and the steam outlet 61b are brought closer. With this configuration, the passage channel 68 is not formed next to the end plate 61en on the side in contact with the partition plate 65, and the passage channel 68 is formed between the end plate 61ef on the opposite side and the partition plate end 65e. . In this case, of the two partition plates 66 provided in the gas-liquid separator 60 (see FIG. 2), the partition plate 66 is not provided on the end plate 61en side, and the partition plate 66 and the end plate on the side far from the end plate 61en are provided. A space surrounded by 61en and the counter plate 63 (see FIG. 2B) may be formed. In the gas-liquid separator 60A configured in this way, the mixed heated medium Wm that has flown horizontally into the can body 61 from the inlet 61a collides with the opposing plate 63, and is then surrounded by the partition plate 66 and the end plate 61en. Change the direction of the flow downward in the space. The flow obtained by reversing the lower end of the partition plate 66 and changing the direction from the lower direction to the horizontal direction enters a relatively long horizontal flow path substantially equal to the length of the can body 61 in the longitudinal direction. Since the entire amount of the medium to be heated W flows in one direction through the horizontal flow path, the flow velocity at that time is approximately twice that of the gas-liquid separator 60 (see FIG. 2A), but the flow path length is Since it is formed approximately twice as large as the gas-liquid separator 60, the effect of gas-liquid separation can be enhanced.

  In the above description, the liquid outlet 61c is formed at the central portion in the horizontal direction of the can body 61. However, the liquid outlet 61c is not limited to the central portion, and may be formed in any direction in which the axis 61x extends. Good. Even if the liquid outlet 61 c is formed at any position in the horizontal direction, the position in the height direction is preferably formed at the bottom of the can body 61.

  In the above description, the counter plate 63 is provided as the collision wall. However, the mixed heated medium Wm flowing from the inflow port 61a may collide with the inner wall of the can body 61 without providing the counter plate 63. . In this case, the portion of the inner wall of the can body 61 where the mixed heated medium Wm flowing in from the inlet 61a collides corresponds to the collision wall. However, if the portion of the inner wall of the can body 61 where the mixed heated medium Wm collides is curved, the energy when the mixed heated medium Wm collides is reduced, so the mixed heated medium Wm collides with the collision wall. It is preferable to provide the counter plate 63 from the viewpoint of increasing the energy at the time of performing the gas separation and further separating the gas and liquid.

  Next, with reference to FIG. 4, the gas-liquid separator 60B with which the absorption heat pump which concerns on a 2nd modification is provided is demonstrated. 4A is a front longitudinal sectional view of the gas-liquid separator 60B, and FIG. 4B is a sectional view taken along the arrow IVB-IVB in FIG. 4A, showing a side longitudinal sectional view of the gas-liquid separator 60B. Show. The configuration of the main components other than the gas-liquid separator 60B of the absorption heat pump including the gas-liquid separator 60B is the same as that of the absorption heat pump 1 (see FIG. 1). In other words, the absorption heat pump including the gas-liquid separator 60B is obtained by replacing the gas-liquid separator 60 (see FIG. 1) with the gas-liquid separator 60B as compared with the absorption heat pump 1 (see FIG. 1). .

  The gas-liquid separator 60 </ b> B includes a can body 161 and a partition plate 165 provided inside the can body 161. The shape and size of the can body 161 are the same as those of the can body 61 (see FIG. 2). Therefore, the end plate 161e of the can body 161 in this modification is formed in a circular shape. Further, the can body 161 is the same as the can body 61 (see FIG. 2) in that the can body 161 is long in the horizontal direction. The can body 161 is formed with an inlet 161a, a steam outlet 161b, and a liquid outlet 161c. The inlet 161a, the steam outlet 161b, and the liquid outlet 161c correspond to the inlet 61a, the steam outlet 61b, and the liquid outlet 61c formed in the can body 61 (see FIG. 2), respectively. In the present modification, the positions where the inlet 161a, the steam outlet 161b, and the liquid outlet 161c are formed with respect to the can body 161 are the inlet 61a and the steam outlet 61b formed in the can body 61 (see FIG. 2). Compared with the liquid outlet 61c, the height direction is the same, but the horizontal direction is different as follows. In the present modification, the inlet 161a, the steam outlet 161b, and the liquid outlet 161c are formed close to one end in the horizontal direction of the can body 161.

  The partition plate 165 is a member that makes a detour in the can body 161 so that the mixed heated medium Wm flowing in from the inflow port 161a does not immediately flow out of the steam outflow port 161b, and corresponds to a detour forming member. The partition plate 165 is disposed at a position in the can body 161 that partitions a space communicating with the inflow port 161a and a space communicating with the steam outflow port 161b. The partition plate 165 has an L-shaped appearance when a flat plate member is bent at a right angle and viewed in a cross section perpendicular to the axis 161x (see FIG. 4B). Regarding the partition plate 165, for convenience of explanation, in the cross section orthogonal to the axis 161x (see FIG. 4B), a vertically extending portion is referred to as a vertical partition plate 165a, and a horizontally extending portion is referred to as a horizontal partition plate 165b. . The upper end of the vertical partition 165a is in contact with the inner wall of the can body 161 near the steam outlet 161b between the inlet 161a and the steam outlet 161b. The lower end of the vertical partition plate 165a is connected to one end of the horizontal partition plate 165b.

  As shown in a longitudinal section parallel to the axis 161x (see FIG. 4A), the vertical partition plate 165a is in contact with the end plate 161e on the side where the inflow port 161a is formed, and the other side. The side 165e extends toward the opposite end plate 161e but does not contact the end plate 161e. Thus, a passage passage 168 through which a fluid can pass is formed between the end plate 161e opposite to the side on which the inflow port 161a is formed and the other side 165e. The width (gap) of the passage channel 168 may be determined so that the resistance does not increase excessively in consideration of the flow rate of the fluid passing therethrough. The vertical partition plate 165a is formed in a size that covers the inflow port 161a in a longitudinal section parallel to the axis 161x (see FIG. 4A). In this modification, the length in the direction of the axis 161x is The length of the body 161 is approximately 0.6 to 0.8 times. The horizontal partition plate 165b is formed so that the length in the direction of the axis 161x is the same as the length of the vertical partition plate 165a. The horizontal partition plate 165b has one end connected to the lower end of the vertical partition plate 165a in the cross section orthogonal to the axis 161x (see FIG. 4B), and the other end below the inflow port 161a. It is in contact with the inner wall. The partition plate 165 including the vertical partition plate 165a and the horizontal partition plate 165b is provided at a higher position than the highest liquid level WLH. With such a configuration, it is possible to avoid the partition plate 165 from being immersed in the heated medium liquid Wq stored in the lower part of the can body 161, and the occurrence of corrosion on the partition plate 165 can be suppressed.

  In the gas-liquid separator 60B configured as described above, the mixed heated medium Wm flowing through the heated medium pipe 84 after heating and flowing horizontally into the can body 161 from the inflow port 161a is disposed in the vertical direction of the partition plate 165. It collides with the partition plate 165a. Thus, the vertical partition plate 165a corresponds to a collision wall. The partition plate 165 including the vertical partition plate 165a serves as both a collision wall and a detour forming member in this modification. The mixed heated medium Wm that has collided with the vertical partition plate 165a has a horizontal partition plate 165b on the lower side and an end plate 161e on one side. Therefore, the direction of flow in the horizontal direction toward the far end end plate 161e is almost the same. Change to a right angle. At this time, the mixed heated medium Wm has a first stage gas (heated medium vapor Wv) and liquid (heated medium) by collision with the vertical partition plate 165a and by changing the flow direction to substantially right and left before and after the collision. Separation from the heating medium liquid Wq) is performed.

  The mixed heated medium Wm flowing in the horizontal direction (in the direction in which the axis 161x extends) after colliding with the vertical partition plate 165a collides with the end plate 161e far from the inflow port 161a. The mixed heated medium Wm that has collided with the end plate 161e flows in the direction of the end plate 161e on the steam outlet 161b side via a passage 168 between the end plate 161e and the side 165e of the vertical partition plate 165a. Change the direction. Due to the reversal of the flow of the mixed heated medium Wm around the side 165e of the vertical partition plate 165a, the separation of the second stage gas and liquid (part of the mixed heated medium Wm contained in the mixed heated medium Wm). Separation and dropping of the heated medium liquid Wq) is performed. The mixed heated medium Wm inverted through the passage passage 168 flows substantially horizontally in the longitudinal direction of the can body 161 toward the side where the steam outlet 161b is formed. The flow path of the mixed heated medium Wm that flows substantially horizontally toward the steam outlet 161b side has a cross-sectional area that is more than half of the cross-sectional area orthogonal to the axis 161x of the can body 161 (FIG. 4 ( B)), the flow velocity of the fluid flowing through this flow path is low, and the length of this flow path is substantially the same as the length of the can body 161 in the longitudinal direction. Can be increased. The mixed heated medium Wm flows substantially horizontally toward the steam outlet 161b, thereby separating the third stage gas and liquid (part of the heated medium contained in the mixed heated medium Wm). Liquid Wq is separated and dropped).

  When the mixed heated medium Wm reaches the vicinity of the end plate 161e in the vicinity of the vapor outlet 161b, the flow direction of the mixed medium Wm is changed so as to be directed upward from the substantially horizontal direction. By changing the direction of the flow from the substantially horizontal direction to the upward direction, the separation of the fourth stage gas (heated medium vapor Wv) and liquid (heated medium liquid Wq) is performed. The separated heated medium vapor Wv flowing upward flows out of the can body 161 through the vapor outlet 161b. Thus, the fluid flowing in from the inlet 161a flows so as to wind around the partition plate 165 before flowing out from the steam outlet 161b, and the flow path formed around the partition plate 165 corresponds to a bypass. . On the other hand, the separated heated medium liquid Wq falls and accumulates at the bottom of the can body 161. The heated medium liquid Wq separated from the mixed heated medium Wm flowing in from the inlet 161a in the process of generating the heated medium vapor Wv flowing out from the vapor outlet 161b and accumulated in the lower portion of the can body 161 is Then, it flows out of the can body 161 through the liquid outlet 161c.

  As described above, since the gas-liquid separator 60B has at least four stages of gas-liquid separation mechanisms, the liquid to be heated to the heated medium vapor Wv that is separated from the mixed heated medium Wm and flows out from the vapor outlet 161b. It is possible to suppress the entrainment of droplets and supply high-quality steam. In particular, in the third stage gas-liquid separation in which the mixed heated medium Wm flows substantially horizontally toward the steam outlet 161b, the entire length of the axially long axis 161x of the can body 161 is utilized. Therefore, by extending the overall length of the can body 161, the gas-liquid separation effect can be enhanced while suppressing the height of the can body 161 (without increasing it). Further, the gas-liquid separator 60B in the present modification example is similar to the gas-liquid separator 60 (see FIG. 2) in that it can perform good gas-liquid separation because the liquid level is small and the liquid level is stable. It is. Further, by disposing the can body 161 of the gas-liquid separator 60B above the uppermost portion of the heat transfer tube 12 of the absorber 10 (see FIG. 1), similarly to the gas-liquid separator 60 (see FIG. 2), The heated medium W can be circulated by the bubble pump effect without providing a pump for circulating the heated medium W between the gas-liquid separator 60B and the heat transfer tube 12 of the absorber 10.

  In the description of the gas-liquid separator 60B according to the above modification, the horizontal position of the inflow port 161a and the vapor outflow port 161b is formed close to one end portion of the can body 161 in the horizontal direction. 2A is formed at the center of the can body 161 following the gas-liquid separator 60 shown in FIG. 2A, and the passage 168 between the partition plate 165 and the end plate 161e is formed on both sides in the horizontal direction. It is good. In this case, the mixed heated medium Wm that has flown horizontally into the can body 161 from the inflow port 161a collides with the vertical partition plate 165a, then flows horizontally into two left and right sides, and the passage channels 168 on both sides are reversed. After that, along the longitudinal direction of the can body 161, it can flow in a substantially horizontal direction toward the central portion where the steam outlet 161b is formed, toward the steam outlet 161b, and gas-liquid separation can be performed.

  In the description of the gas-liquid separator 60B according to the above modification, the position of the liquid outlet 161c in the horizontal direction is formed close to one end in the horizontal direction of the can body 161 together with the inlet 161a and the steam outlet 161b. However, it is not limited to this position, and may be formed in any direction in which the axis 161x extends. The liquid outlet 161 c is preferably formed at the bottom of the can body 161 regardless of the position in the horizontal direction.

  In the above description, the can bodies 61 and 161 are formed in a cylindrical shape that is long in the horizontal direction. However, the cross-sectional shape (the shape of the end plates 61e and 161e) orthogonal to the axis lines 61x and 161x is elliptical, chamfered. It may be a shape other than a circle such as a polygon (including a rectangle).

  In the above description, the steam outlets 61b and 161b are formed at the tops of the can bodies 61 and 161. However, they may be formed at portions other than the tops as long as they are above the highest liquid level WLH. However, from the viewpoint of smoothly flowing out the heated medium vapor Wv from the can bodies 61 and 161 without including droplets, the steam outlets 61b and 161b are preferably formed on the upper portions of the can bodies 61 and 161. More preferably, it is formed at the top. Further, in FIG. 2B and FIG. 4B, the heated medium tube 84 after heating is not horizontal, but obliquely descends from the upper side of the can body 61, 161 toward the can body 61, 161. The mixed heated medium Wm may be arranged to flow into the can bodies 61 and 161 obliquely from above the can bodies 61 and 161. With this configuration, the counter plate 63 and / or the vertical partition plate 165a may be disposed so as to be perpendicular to the oblique flow, or may remain vertical.

  In the above description, the evaporator 20 is a full liquid type, but may be a spray type. When the evaporator is a spraying type, a refrigerant liquid spraying nozzle for spraying the refrigerant liquid Vf is provided at the upper part of the evaporator can body, and in the case of the full liquid type, the refrigerant that is to be connected to the lower part of the evaporator can body 21 What is necessary is just to connect the edge part of the liquid pipe 45 to a refrigerant | coolant spray nozzle. Moreover, you may provide the piping and pump which supply the refrigerant | coolant liquid Vf of the lower part of an evaporator can body to a refrigerant | coolant spray nozzle.

In the above description, the absorption heat pump 1 is described as a single stage, but it may be multistage.
FIG. 5 illustrates the configuration of a two-stage temperature rising type absorption heat pump 1A. In the absorption heat pump 1A, the absorber 10 and the evaporator 20 in the absorption heat pump 1 shown in FIG. 1 are a high temperature side high temperature absorber 10H and a high temperature evaporator 20H, and a low temperature side low temperature absorber 10L and a low temperature evaporator. It is divided into 20L. The high temperature absorber 10H has a higher internal pressure than the low temperature absorber 10L, and the high temperature evaporator 20H has a higher internal pressure than the low temperature evaporator 20L. The high-temperature absorber 10H and the high-temperature evaporator 20H communicate with each other at the top so that the vapor of the refrigerant V of the high-temperature evaporator 20H can be moved to the high-temperature absorber 10H. The low-temperature absorber 10L and the low-temperature evaporator 20L communicate with each other at the top so that the vapor of the refrigerant V in the low-temperature evaporator 20L can be moved to the low-temperature absorber 10L. The heated medium liquid Wq is heated by the high temperature absorber 10H. The heat source hot water h is introduced into the low temperature evaporator 20L. The low-temperature absorber 10L heats the refrigerant liquid Vf in the high-temperature evaporator 20H by absorption heat when the absorbing liquid S absorbs the vapor of the refrigerant V that has moved from the low-temperature evaporator 20L, and the refrigerant V enters the high-temperature evaporator 20H. The generated vapor V of the refrigerant V in the high-temperature evaporator 20H moves to the high-temperature absorber 10H and is absorbed by the absorption liquid S in the high-temperature absorber 10H with the absorbed heat. It is comprised so that it may heat. In the absorption heat pump 1A, although not shown, a gas-liquid separator that separates the refrigerant V heated through the heat transfer tube in the low temperature absorber 10L into gas (refrigerant vapor) and liquid (refrigerant liquid) is provided. The gas-liquid separator 60 or the gas-liquid separator 60A or the gas-liquid separator 60B can be applied as the gas-liquid separator.

1 Absorption Heat Pump 10 Absorber 12 Heat Transfer Tube 60, 60A, 60B Gas-Liquid Separator 61 Can Body 61a Inlet 61b Steam Outlet 63 Opposing Plate 65 Partition Plate 65e End 66 Partition Plate 68 Passing Channel 161 Can Body 161a Inlet 161b Vapor outlet 165 Partition plate 165e End 168 Passage channel Sa Concentrated solution Ve Evaporator refrigerant vapor Wq Heated medium liquid Wm Mixed heated medium Wv Heated medium vapor WLH Maximum liquid level

Claims (5)

An absorber that heats the liquid in the heat transfer tube with the absorption heat generated when the absorption liquid absorbs the vapor of the refrigerant to generate a mixed fluid in which the gas and the liquid are mixed;
A gas-liquid separator for separating gas and liquid from the mixed fluid;
The gas-liquid separator is
A can body that is long in the horizontal direction, and an inflow port into which the mixed fluid flows and an outflow port from which a separated gas that is a gas separated from the mixed fluid flows out are liquids separated from the mixed fluid. A can body formed higher than the highest liquid level that can be reached after separation;
A collision wall that collides the mixed fluid that has flowed into the can body from the inflow port, the collision wall provided at a higher position than the highest liquid level that the liquid after the separation can reach;
A detour forming member that forms a detour to increase the path until the fluid after the collision reaches the outflow port on the collision wall;
The detour forming member is arranged such that the fluid after the collision with the collision wall changes the flow direction by winding the horizontal end of the detour forming member,
At the horizontal end of the detour forming member, a passage channel through which the fluid after the collision passes is formed in the collision wall between the detour forming member and the can body;
Absorption heat pump. A horizontal length of the can body is configured to be equal to or less than a horizontal length of the heat transfer tube;
The can body is disposed above the top of the heat transfer tube;
The absorption heat pump according to claim 1. A guide member for guiding the fluid after the collision downward to the collision wall;
The absorption heat pump according to claim 1 or 2. The inflow port and the outflow port are formed in a central portion of the can body in a horizontal direction;
The passage channel is formed at both ends in the horizontal direction of the bypass forming member;
The absorption heat pump according to any one of claims 1 to 3. The inlet and the outlet are formed close to one end of the can body in the horizontal direction;
The passage is formed at an end of the bypass forming member in the horizontal direction opposite to the inlet;
The absorption heat pump according to any one of claims 1 to 3.

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