JP2015525869A - Absorption refrigerator - Google Patents

Abstract

The present invention relates to an absorption chiller and, more particularly, to an absorption chiller for ships in consideration of the marine environment. For this purpose, the present invention includes at least an evaporator, an absorber, a regenerator and a condenser, and the evaporator and the absorber are arranged on one side and the other side of a common shell with an eliminator as a boundary. An evaporator sump located below the first heat transfer tube of the evaporator, and a first through hole through which the refrigerant liquid falling below the first heat transfer tube passes, the evaporator sump A cover of the evaporator sump that covers the upper part of the heat sink, an absorber sump located below the second heat transfer tube of the absorber, and a second through hole that allows the absorbent that falls below the second heat transfer tube to pass therethrough. And an absorber sump cover covering an upper portion of the absorber sump. [Selection] Figure 1

Description

  The present invention relates to an absorption chiller, and more particularly, to an absorption chiller for ships in consideration of the marine environment.

  Most countries and companies around the world are interested in the effective use of energy due to rising crude oil prices and are making many efforts to do so.

  As an example, utilization of waste heat is a technology that can effectively use energy.

  In particular, utilization of high-temperature waste heat is easy and highly utilized, and utilization of medium- and low-temperature waste heat is not as easy as utilization of the high-temperature waste heat and is less effective.

  Nevertheless, an absorption refrigeration machine is a typical device that can produce cold water by utilizing medium- and low-temperature waste heat. The absorption refrigerator can be used for air conditioning.

  The basic structure of the absorption refrigerator as the background of the invention can be composed of a large number of modules. The module may be an evaporator, an absorber, a regenerator, and a condenser.

  The evaporator has a sealed container for storing a refrigerant and a heat transfer tube provided in the sealed container. Cold water flows along the heat transfer tubes. At this time, the inside of the container is maintained in a vacuum (for example, 6 to 7 mmHg). Thereby, a refrigerant | coolant comes to evaporate at about 5 degreeC. The cold water inside the heat transfer tube is cooled by the heat of evaporation. As a result, a cooling heat source is generated. At this time, in order to improve the evaporation effect, the refrigerant liquid in the lower part of the evaporator is pumped by the refrigerant pump, and is injected to the heat transfer tube side below the nozzle through the nozzle in the upper part of the evaporator. Here, the sealed container may indicate a kind of shell or sump, and in the case of a shell, it is connected to an absorber or formed integrally and used in common. obtain.

  If the evaporator continues to evaporate, the partial pressure of water vapor gradually increases, the evaporation temperature also rises, and the absorber can perform a function of preventing an appropriate cooling capacity from being obtained. The absorber uses a LiBr (Lithium bromide) aqueous solution that is an absorbent. The absorber is used in connection with the evaporator. The refrigerant evaporated in the evaporator, that is, the refrigerant vapor is absorbed in the LiBr aqueous solution inside the absorber. At this time, the evaporation pressure and temperature can be kept constant. The absorber can include a heat transfer tube provided in the absorber to remove absorbed heat generated when the refrigerant vapor is absorbed. Cooling water can also flow through this heat transfer tube. The LiBr aqueous solution gradually becomes thinner due to the absorption action, and becomes a thin LiBr aqueous solution that cannot continue the absorption action.

  The regenerator can function to concentrate the thinned LiBr aqueous solution. The regenerator concentrates the thinned LiBr aqueous solution with an external heat source (for example, burner, steam, hot water, etc.), and supplies the concentrated LiBr aqueous solution to the absorber again. Thereby, an absorber can perform an absorption action continuously.

  The condenser receives the refrigerant vapor from the regenerator. The condenser completely cools and condenses the refrigerant vapor using cold energy such as condenser heat transfer tubes and cooling water inside the condenser heat transfer tubes, for example, seawater, fresh water, and the like. The fully condensed refrigerant liquid returns to the evaporator again and can be re-evaporated.

  Thus, conventional absorption refrigerators are widely used for land use.

  However, the ship conditions differ greatly from the land conditions in terms of the installation of the absorption chiller and the operating environment.

  Therefore, the absorption refrigeration machine for land is difficult to replace the absorption refrigeration machine for ships.

  In addition, when a land absorption refrigerator is installed and used on a ship, a problem occurs.

  For example, Patent Document 2 (Korean Registered Patent Publication No. 10-0124816), which is the background of the invention, is merely a general absorption refrigerator, and does not include the configuration of a marine apparatus.

  The following Patent Document 1 (Korea Published Patent Publication No. 10-2011-0069548) is a marine absorption refrigerator, and includes only the concept of using waste heat as a heat source for the absorption refrigerator. Therefore, it does not include a specific device configuration to be used for many ships.

  Furthermore, since the ship is a structure that moves and floats on the sea surface, it is affected by the marine environment. That is, there is a possibility that the absorption refrigeration machine for land cannot operate normally due to the influence of the flow of the ship.

  Therefore, an efficient marine absorption chiller that is less affected by the flow of the marine vessel is required.

Korean Published Patent Publication No. 10-2011-0069548 Korean Registered Patent Publication No. 10-0124816

  The present invention has been made in view of the above circumstances. The purpose of the present invention is to reduce the evaporator refrigerant so that the refrigerant in the evaporator is on the absorption liquid side of the absorber or on the opposite side by the cover of the evaporator sump and the cover of the absorber sump. An object of the present invention is to provide an absorption refrigerator that can prevent overflowing or intrusion to the side.

  Another object of the present invention is to provide an absorption chiller in which an effective suction head (NPSH) of an absorption liquid pump can be secured by a central water collecting portion of an absorber sump.

  In the embodiment of the present invention, the distance between the legs that support the common shell is relatively increased, and vibration isolation plates are provided between the legs and on the bottom surface of the common shell. Another object of the present invention is to provide an absorption refrigerator that can suppress the occurrence of vibrations of the refrigerator itself due to excessive vibration.

  According to one aspect of the present invention, at least an evaporator, an absorber, a regenerator, and a condenser are included, and the evaporator and the absorber are disposed on one side and the other side of a common shell with an eliminator as a boundary. An absorption refrigerating machine having an evaporator sump located below the first heat transfer tube of the evaporator and a first through hole for allowing the refrigerant liquid falling below the first heat transfer tube to pass therethrough, A cover of the evaporator sump that covers the top of the evaporator sump, an absorber sump located below the second heat transfer tube of the absorber, and a second passage through which the absorbing liquid that falls below the second heat transfer tube passes. An absorption refrigerator including an absorber sump cover having a through hole and covering an upper portion of the absorber sump may be provided.

  The evaporator sump is spaced apart along the longitudinal direction of the evaporator sump, and includes a plurality of partition walls connected between the inner surface of the evaporator sump and the inner surface of the cover of the evaporator sump. Can be included.

  The cover of the evaporator sump is formed between an outer part corresponding to an upper area of the evaporator sump, and the first through hole positioned lower than the level of the outer part and the outer part. A hopper portion and a combing portion extending downward from the frame of the first through hole may be included.

  The partition includes a first frame that closely contacts the bottom surface of the hopper, a second frame that extends downward from a right end of the first frame and contacts the curved surface of the common shell, A third frame extending horizontally from the lower end of the second frame and closely contacting the inclined bottom surface of the evaporator sump; and extending from the left end of the third frame upwardly to the inclined bottom surface of the evaporator sump. A fourth frame that adheres, and a fifth frame that extends from the left end of the fourth frame to the left end of the first frame and adheres along the side wall of the evaporator sump.

  The cover of the absorber sump is installed so as to be inclined between the outer surface of the inclined bottom surface of the evaporator sump and the curved surface of the common shell corresponding to the absorber sump, and is adjacent to the curved surface. Thus, the second through hole formed in the side of the cover of the absorption sump may be included.

  The cover of the absorber sump may further include a third through hole that is formed at both end portions along the longitudinal direction of the cover of the absorber sump and allows the absorbent to pass therethrough.

  Further, in the present embodiment, a bottom hole penetrating along the longitudinal direction of the absorber sump at the bottom surface of the absorber sump, a wall body portion connected so as to seal a frame of the bottom hole, and the wall A bottom part connected to the lower end frame of the body part and having a hopper shape so that the absorbing liquid collects on the center side, and connected to penetrate the center of the bottom part, has a box shape, and the discharge port is a bottom surface of the water collection And a central water collecting portion formed in the main body.

  The present embodiment also includes a number of legs spaced apart to correspond to the width of the common shell so as to support the common shell, and a vibration isolating plate connected between the legs and the bottom surface of the common shell. And can be included.

  In addition, this embodiment is installed in the evaporator, and is installed in the absorber, the first spray head disposed on the first heat transfer tube of the evaporator, and the absorber first And a second spray head disposed on the two heat transfer tubes.

  In addition, the first spray head and the second spray head include a plurality of chamber portions that store fluid, a plurality of trench portions that receive supply of fluid from the chamber portion, and intermediate positions between the chamber portions. A baffle coupled to the inside of the trench part, a finishing plate for sealing both ends of the trench part, and a hole formed in the bottom plate of the trench part.

  Each of the plurality of chamber parts may include a top plate on which a fluid inlet is formed and a bottom plate on which a fluid outlet is formed. The plurality of chamber portions may be spaced apart along the longitudinal direction of the head. Each of the plurality of trench portions may include a trench opening overlapping the fluid outlet. In addition, the plurality of trench portions may be spaced apart along the width direction of the head.

  According to another aspect of the present invention, in order to solve the above problems, the present invention includes at least an evaporator, an absorber, a regenerator, and a condenser, and the evaporator and the absorber are shared by an eliminator as a boundary. An absorption refrigerator disposed on one side and the other side of the shell, the first spray head disposed inside the evaporator and disposed on a first heat transfer tube of the evaporator; and the absorption An absorption refrigerator that further includes a second spray head that is installed inside the oven and disposed on the second heat transfer tube of the absorber. Here, the first spray head and the second spray head may include a plurality of chamber portions that store fluid, a plurality of trench portions that receive the supply of fluid from the chamber portion, and an intermediate position between the chamber portions. A baffle coupled to the inside of the trench part every time, a finishing plate for sealing both ends of the trench part, and a hole formed in the bottom plate of the trench part.

  According to the present embodiment, there is an effect that it is possible to present a solution to a problem associated with elements and phenomena that are most affected by the flow of the ship in the absorption refrigerator.

  This embodiment includes an evaporator sump having a partition as a means for preventing the overflow phenomenon of the evaporator sump, and the refrigerant of the evaporator overflows to the lower sump side of the absorber filled with the absorbing liquid in the common shell. Can be prevented.

  In the case of the absorption liquid pump, the present embodiment does not have a large effective suction head due to the structure, and the characteristics of the ship make it impossible to manufacture the refrigerator with a large height in order to ensure this. Therefore, this embodiment provides the absorber sump which has a water collection part. Here, the absorbing liquid is collected on the central water collecting portion side below the absorber sump, and can flow to the absorbing liquid pump through the discharge port of the central water collecting portion. Thereby, the change of the effective suction head of the absorption liquid pump by ship flow can be decreased, and the effective suction head required by the absorption liquid pump can be secured.

  The present embodiment provides a structure for vibration isolation, and supports the common shell with a plurality of legs that are spaced apart to correspond to the width of the common shell having the evaporator and the absorber. By providing the vibration isolation plate so as to be connected to the bottom surface, the absorption refrigerator can be protected from vibrations transmitted along the base and the leg from the installation surface of the ship.

  According to the present embodiment, the chamber portions of the first spray head and the second spray head have a hollow box structure, and the trench portion has the baffle, so that the refrigerant liquid can be stabilized. .

  According to the present embodiment, since the hole can be easily cleaned through the opening of the trench part, the maintenance can be more convenient than the existing nozzle.

1 is a schematic conceptual diagram of an absorption refrigerator according to an embodiment of the present invention. It is a perspective view which shows the coupling | bonding relationship of the common shell shown in FIG. 1, and a vibration isolator. FIG. 3 is an exploded perspective view of the common shell shown in FIG. 2. FIG. 3 is a side view of the common shell, vibration isolator, leg, and base shown in FIG. 2. It is a perspective view of the spray head shown in FIG. FIG. 6 is a cross-sectional view taken along line VI-VI shown in FIG. 5. It is sectional drawing along the VII-VII line shown in FIG. It is sectional drawing along the VIII-VIII line shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, when it is determined that a specific description related to a known configuration or function may obscure the gist of the present invention, the detailed description thereof can be omitted. In particular, the present embodiment can be applied to the detection device referred to as the background art, and can be understood by the background art, or a configuration similar in configuration may not be included in the description of the present embodiment. .

  FIG. 1 is a schematic conceptual diagram of an absorption refrigerator according to an embodiment of the present invention.

  Referring to FIG. 1, the present embodiment is an absorption refrigerator having an evaporator 100, an absorber 200, a regenerator 300, and a condenser 400, and is used in a place where peristation and flow are intense such as a ship. Can be an absorption refrigerator.

  In addition, the present embodiment includes a heat exchanger 310 corresponding to an external heat source (for example, burner, steam, hot water, ship engine waste heat, etc.) so that the thin LiBr aqueous solution is concentrated in the regenerator 300. Can do.

  The heat exchanger 310 can perform a function of receiving a supply of high-temperature water due to waste heat from an engine, an exhaust device or the like and supplying it as a necessary heat source of the present embodiment.

  In this embodiment, the common shell 150 which can maintain an internal space in a vacuum as an enclosed container structure may be provided.

  Inside the common shell 150, the evaporator 100 can be disposed on one side (right side in FIG. 1) with the eliminator 151 as a boundary, and the absorber 200 can be disposed on the other side (left side in FIG. 1) with the eliminator 151 as a boundary.

  For example, the common shell 150 may have a cross-sectional shape shown in FIG. 1, and the common shell 150 may be closed by a shell housing (drawing symbol “152” in FIG. 4), and piping necessary for an absorption refrigerator, Various piping ports, valves, and the like can be further included.

  The eliminator 151 may indicate a partition or partition member having a number of passages or pores through which the refrigerant vapor generated in the evaporator 100 can be transmitted to the absorber 200 side.

  Further, the first spray head 190 may be installed inside the evaporator 100 and disposed on the first heat transfer tube 101 of the evaporator 100.

  Further, the second spray head 290 may be installed inside the absorber 200 and disposed on the second heat transfer tube 201 of the absorber 200.

  The embodiment may also include an evaporator sump 110, an evaporator sump cover 120, an absorber sump 210, and an absorber sump cover 220.

  The evaporator sump 110 is an inner container of the common shell 150 where the refrigerant liquid collects, and may be positioned below the first heat transfer tube 101 of the evaporator 100.

  The evaporator sump 110 can be coupled to the evaporator pump 130. The evaporator pump 130 can perform a function of supplying the refrigerant liquid of the evaporator sump 110 to the first spray head 190 side of the evaporator 100.

  The first spray head 190 of the evaporator 100 can perform a function of supplying the refrigerant liquid to the first heat transfer tube 101 side.

  That is, the refrigerant liquid inside the chamber portion 195 of the first spray head 190 passes through the trench portion 197. Thereafter, the refrigerant liquid can escape through the hole 197b formed in the lower portion of the trench portion 197. Here, the hole 197b may have a micro-sized diameter. At this time, refrigerant vapor may be generated. Further, the refrigerant vapor can flow to the absorber 200 side through the eliminator 151.

  The second spray head 290 of the absorber 200 can perform the function of supplying the absorbing liquid to the second heat transfer tube 201 side.

  The second spray head 290 may also include a chamber part 295, a trench part 297, and a hole 197b. The absorbing liquid inside the chamber part 295 of the second spray head 290 passes through the trench part 297. Thereafter, the absorbing solution can fall through the hole 197b formed in the lower portion of the trench portion 297. At this time, the absorbing liquid meets the refrigerant vapor and can absorb the refrigerant vapor.

  The evaporator sump cover 120 has a first through-hole 121 for allowing the refrigerant liquid falling below the first heat transfer tube 101 to pass therethrough, and can function to cover the top of the evaporator sump 110. The external force due to the shaking of the apparatus in which the present embodiment is installed, for example, the flow of a ship at sea, can be transmitted to the refrigerant liquid of the evaporator sump 110. Even under such conditions, the refrigerant liquid can be suppressed or prevented from overflowing to the absorber sump 210 side by the cover 120 of the evaporator sump.

  The absorber sump 210 is an inner container of the common shell 150 where the absorbing liquid collects, and may be located below the second heat transfer tube 201 of the absorber 200.

  Absorber sump 210 may be coupled with absorber pump 230. The absorber pump 230 can perform the function of supplying the absorption liquid of the absorber sump 210 to the heat exchanger 310 side.

  The cover 220 of the absorber sump has a second through hole 221 through which the absorbing liquid that falls downward of the second heat transfer tube passes. Absorber sump cover 220 may serve to cover the top of absorber sump 210. In other words, the absorber sump cover 220 may be a means for preventing or preventing the absorption liquid of the absorber sump 210 from overflowing to the evaporator sump 110 side due to external force.

  Hereinafter, specific shapes of the evaporator sump 110, the evaporator sump cover 120, the absorber sump 210, and the absorber sump cover 220 according to the present embodiment will be described with reference to FIG.

  FIG. 2 is a perspective view showing a coupling relationship between the common shell and the vibration isolator shown in FIG.

  The evaporator sump 110 is spaced apart along the length of the evaporator sump 110 and is connected to a plurality of partition walls 140, 141 connected between the inner surface of the evaporator sump 110 and the inner surface of the cover 120 of the evaporator sump. Can be included.

  The partition walls 140 and 141 have a relatively narrow cross-sectional area as compared to the cross-sectional area 111 defined by the evaporator sump 110 and the evaporator sump cover 120. In particular, a chamfered third frame 144 is formed below the partition walls 140 and 141. The refrigerant liquid in the evaporator sump 110 can flow through the space C below the third frame 144 of the partition walls 140 and 141.

  That is, the partition walls 140 and 141 can partially restrict the flow of the refrigerant liquid when the refrigerant liquid of the evaporator sump 110 is generated by the shaking of the ship in which the present embodiment is installed.

  That is, the cover 120 of the evaporator sump can restrict the flow of the refrigerant liquid collected in the evaporator sump 110 in the vertical direction. The partition walls 140, 141 allow the lower flow of the refrigerant liquid to flow through the space C below the third frame 144 of the partition walls 140, 141 instead of blocking the upper flow of the refrigerant liquid along the longitudinal direction of the evaporator sump 110. acceptable.

  Thereby, the refrigerant liquid located on both sides of the evaporator sump 110 can flow through the space C below the third frame 144 of the partition walls 140 and 141 to the intermediate position side of the evaporator sump 110 where the refrigerant liquid discharge port 112 is located. . At this time, the refrigerant liquid discharge port 112 may be connected to the refrigerant liquid discharge line 131 of the evaporator pump 130 (see FIG. 1).

  The partition walls 140, 141 minimize the refrigerant flow of the refrigerant liquid collected in the evaporator sump 110, while the refrigerant liquid passes through the evaporator pump 130 and the refrigerant liquid discharge line 131 to the first spray head 190 of the evaporator 100. There is no obstacle to circulation.

  In addition, in the present embodiment, a large number of legs 500 and 501 spaced apart to correspond to the width of the common shell 150 so as to support the common shell 150, and between the legs 500 and 501 and the bottom surface of the common shell 150. The vibration isolator plate 600 may be connected.

  The lower part of each leg 500, 501 can be fixed to the upper surface of a base 510 that can be fixed to the installation surface of the ship, and reinforcing plates 520, 521 are coupled between the surface of the leg 500, 501 and the upper surface of the base 510. Can be done.

  The vibration isolator 600 can protect the present embodiment from the vibration of the ship transmitted along the installation surface of the ship, the base 510 and the legs 500 and 501.

  That is, the vibration isolation plate 600 corresponds to the structure for vibration isolation of the present embodiment, and the common shell 150 is supported by the legs 500 and 501. If the vibration isolation plate 600 is not provided, the vibration of the ship can be directly transmitted to the common shell 150 through the legs 500 and 501. In the case of the present embodiment, vibration transmitted from the lower part to the upper part of the legs 500 and 501 can be diffused or dispersed by the vibration isolation plate 600. As a result, the common shell 150 and the equipment built in the common shell 150 or the equipment connected to the common shell 150 can be protected from vibration.

  3 is an exploded perspective view of the common shell shown in FIG. 2, and FIG. 4 is a side view of the common shell, vibration isolator, leg, and base shown in FIG.

  Referring to FIG. 3 or 4, the evaporator sump cover 120 may have a sump frame 115 that can cover the top area of the evaporator sump 110.

  The sump frame 115 may include an inclined bottom surface 113 connected to be inclined to the inner curved surface of the common shell 150, and a side wall 114 formed perpendicularly from the inclined bottom surface 113.

  The evaporator sump cover 120 may be welded between the side wall 114 of the sump frame 115 and the inner surface of the common shell 150.

  The evaporator sump cover 120 is formed between the outer portion 122 corresponding to the upper area of the evaporator sump 110 and the first through hole 121 and the outer portion 122 positioned lower than the level of the outer portion 122. A hopper portion 123 and a combing portion 124 extending downward from the frame of the first through hole 121 may be included.

  In the evaporator 100, the refrigerant liquid descends to the hopper part 123 side of the evaporator sump cover 120, then flows to the first through-hole 121 side along the inclined surface of the hopper part 123, and is guided by the combing part 124. After that, it can gather in the evaporator sump 110 and then flow to the evaporator pump side via the refrigerant liquid discharge port 112.

  On the other hand, the partition walls 140 and 141 are a first frame 142 that closely contacts the bottom surface of the hopper 123 and a second frame that extends downward from the right end of the first frame 142 and closely contacts the curved surface of the common shell 150. A frame 143, a third frame 144 extending horizontally from the lower end of the second frame 143 and closely contacting the inclined bottom surface of the evaporator sump 110, and an evaporator extending from the left end of the third frame 144 upwardly inclined. A fourth frame 145 closely contacting the inclined bottom surface 113 of the sump 110 and a fifth frame extending from the left end of the fourth frame 145 to the left end of the first frame 142 and closely contacting along the side wall 114 of the evaporator sump 110 146. Such partition walls 140 and 141 can minimize the flow of the refrigerant liquid due to the ship flow.

  Inside the common shell 150, an absorber sump 210 and an absorber sump cover 220 may be located on the left side of the side wall 114 of the sump frame 115 and an eliminator (not shown) on the side wall 114.

  When referring to FIGS. 2 and 3, the absorber sump cover 220 is inclined between the outer surface of the inclined bottom surface 113 of the evaporator sump 110 and the curved surface of the common shell 150 corresponding to the absorber sump 210. Can be installed.

  At this time, the second through hole 221 through which the refrigerant liquid containing the refrigerant vapor can pass is formed on the side of the cover 220 of the absorption sump so as to be adjacent to the curved surface of the common shell 150 corresponding to the absorber sump 210. obtain.

  The third through holes 222 and 223 can perform the same function as the second through hole 221. The third through holes 222 and 223 may be formed so that the absorbing liquid can be passed to both end portions along the longitudinal direction of the cover 220 of the absorber sump.

  On the other hand, the present embodiment is configured to be linked to the absorber sump 210, and includes a bottom hole 240 penetrating from the bottom surface of the absorber sump 210 along the longitudinal direction of the absorber sump 210, and a frame of the bottom hole 240. A wall body 250 connected so as to be sealed, a bottom portion 260 connected to a lower end frame of the wall body portion 250 and having a hopper shape so that the absorbing liquid is collected on the center side, and so as to penetrate the center of the bottom portion 260. A central water collecting portion 270 having a box shape and having a discharge port 271 formed on the water collecting bottom surface can be included.

  The space of the central water collecting portion 270 is connected to the internal space defined by the bottom portion 260 and the wall portion 250.

  In the absorber 200, the absorbent is sprayed on the upper part of the common shell 150 and descends toward the cover 220 of the absorber sump, and then the absorbent sump 210 of the absorber sump 210 passes through the second through hole 221 of the cover 220 of the absorber sump. It can flow to the internal and central catchment 270.

  At this time, the central water collection unit 270 can secure an effective suction head (NPSH) of the absorption liquid pump (the reference numeral 230 in FIG. 1).

  For example, when a general land absorption refrigerator that does not flow or shake like a ship is applied to a ship, the position of the discharge port of the land absorption sump is offset from the side of the absorption sump. When the absorption liquid inside the absorber sump flows due to the flow of the ship, the effective suction head of the absorption liquid pump is not secured due to the change of the pressure head of the side absorption liquid, and the cavitation phenomenon may occur, and the absorption Can cause fatal defects in the refrigerator.

  On the other hand, this embodiment includes the bottom hole 240, the wall body portion 250, the bottom portion 260, and the central water collecting portion 270 of the absorber sump 210, and the discharge port is formed on the water collecting bottom surface of the central water collecting portion 270. As a result, there is little change in the effective suction head of the absorption liquid pump due to ship flow, and this makes it possible to satisfy the effective suction head required by the absorption liquid pump.

  5 is a perspective view of the spray head shown in FIG. 1, FIG. 6 is a cross-sectional view taken along line VI-VI shown in FIG. 5, and FIG. 7 is taken along line VII-VII shown in FIG. FIG. 8 is a cross-sectional view taken along line VIII-VIII shown in FIG.

  Referring to FIG. 1, the first spray head 190 and the second spray head 290 may be symmetrical with respect to the eliminator 151 or may be structurally the same. Therefore, for ease of explanation, the detailed configuration of the spray head may be described below with reference to the first spray head 190.

  Referring to FIGS. 5 and 6, the first spray head 190 includes a chamber part 195, a trench part 197, a baffle 198, a finishing plate 197 c, and a bracket 199.

  The chamber part 195 contains a fluid such as a refrigerant liquid, and can be composed of a large number.

  If the chamber portion 195 is applied to the second spray head 190, the fluid can be an absorbing liquid.

  The bracket 199 can be welded to the upper portions of both ends of the trench portion 197. The bracket 199 can also be used for increasing the structural rigidity of the trench portion 197 or for providing the first spray head 190 or the second spray head on the frame constituting the evaporator or the absorber.

  A number of fluid inlets 191 may be formed in the upper plate 192 of the chamber portion 195. The fluid inlet 191 may be a joint part to which a piping line or a pipe of the evaporator pump 130 shown in FIG. 1 is coupled.

  A number of fluid outlets 193 may be formed in the bottom plate 194 of the chamber portion 195. Such a chamber portion 195 may be composed of a large number and may be spaced apart along the longitudinal direction of the head. Further, the chamber wall 196 of the chamber portion 195 forms a sealed hollow container structure that is hermetically connected between the frame of the upper plate 192 and the frame of the bottom plate 194.

  Even if the first spray head 190 itself sways due to ship movement or the like, the refrigerant liquid can be stored inside the chamber portion 195 having a hermetically sealed hollow container structure, and then stabilized to the trench portion 197 side via the fluid outlet 193. Can be supplied.

  In addition, the trench part 197 may be connected (for example, welded) to the bottom surface of the bottom plate 194 of the chamber part 195 so that the trench opening part 197a is placed below the fluid outlet 193. That is, the trench opening 197a may overlap the fluid outlet 193.

  The trench part 197 is composed of a large number and can be spaced apart along the width direction of the head. Further, both ends of the trench portion 197 can be sealed by the finishing plate 197c.

  Referring to FIGS. 5 and 7, the bottom plate of each trench portion 197 may have a number of holes 197b. Here, the hole 197b may be a discharge port through which the refrigerant liquid is discharged. Therefore, the maintenance worker can easily clean the hole 197b through the trench opening 197a.

  Referring to FIGS. 5 and 8, a baffle 198 may be installed in each trench part 197 with reference to an intermediate position between the chamber parts 195. With such a baffle 198, each trench portion 197 may have a number of partitioned spaces. The refrigerant liquid may not flow into the other side partition space by the baffle 198 in the one side partition space in the trench part 197, so that even if the first spray head 190 itself is shaken due to ship shaking or the like, Can be stabilized.

  The embodiments of the present invention have been described above with reference to the accompanying drawings. However, those skilled in the art to which the present invention pertains have ordinary skill in the art without changing the technical idea or essential features thereof. It can be understood that the embodiment can be implemented in other specific forms. For example, a person skilled in the art can change the material and size of each component according to the application field, or combine or replace the embodiments to implement in a form that cannot be clearly disclosed in the embodiment of the present invention. It does not depart from the scope of the invention. Accordingly, the embodiments described above are illustrative in all aspects and should not be construed as limiting, and such modified embodiments are intended to fall within the scope of the claims of the present invention. It can be said that it is included in the technical idea described in.

Claims (20)

An absorption refrigerator including at least an evaporator, an absorber, a regenerator, and a condenser, wherein the evaporator and the absorber are disposed on one side and the other side of a common shell with an eliminator as a boundary,
An evaporator sump located below the first heat transfer tube of the evaporator;
An evaporator sump cover having a first through hole for allowing the refrigerant liquid falling below the first heat transfer tube to pass therethrough and covering an upper portion of the evaporator sump;
An absorber sump located below the second heat transfer tube of the absorber;
An absorber sump cover having a second through-hole for allowing the absorbing liquid falling below the second heat transfer tube to pass therethrough and covering an upper portion of the absorber sump;
Including absorption refrigerator. The evaporator sump
A plurality of partition walls spaced apart along a length of the evaporator sump and connected between an inner surface of the evaporator sump and an inner surface of a cover of the evaporator sump. 2. The absorption refrigerator according to 1. The evaporator sump cover is
An outer shell corresponding to an upper area of the evaporator sump;
A hopper portion formed between the first through hole and the outer portion located lower than the level of the outer portion;
A combing portion extending downward from the frame of the first through hole;
The absorption refrigerator according to claim 2, comprising: The partition is
A first frame that closely adheres to the bottom shape of the hopper,
A second frame extending downward from a right end of the first frame and closely contacting the curved surface of the common shell;
A third frame extending horizontally from the lower end of the second frame and closely contacting the inclined bottom surface of the evaporator sump;
A fourth frame that extends in an upwardly inclined direction from the left end portion of the third frame and adheres closely to the inclined bottom surface of the evaporator sump;
A fifth frame that extends from the left end of the fourth frame to the left end of the first frame and adheres along the side wall of the evaporator sump;
The absorption refrigerator according to claim 3, comprising: The absorber sump cover is:
The cover of the absorber sump is installed so as to be inclined between the outer surface of the inclined bottom surface of the evaporator sump and the curved surface of the common shell corresponding to the absorber sump, and adjacent to the curved surface. The absorption refrigerator according to claim 4, comprising the second through hole formed on a side. The absorber sump cover is:
6. The absorption refrigerator according to claim 5, further comprising a third through hole formed at both side end portions along the longitudinal direction of the cover of the absorber sump and allowing the absorption liquid to pass therethrough. A bottom hole penetrating along the longitudinal direction of the absorber sump at the bottom of the absorber sump;
A wall portion connected so as to seal the frame of the bottom hole;
A bottom part connected to a lower end frame of the wall part, and having a hopper shape so that the absorbing liquid collects on the center side;
A central water collection part connected to penetrate the center of the bottom part, having a box shape, and a discharge port formed on the water collection bottom surface,
The absorption refrigerator according to claim 1, further comprising: A number of legs spaced apart to correspond to the width of the common shell to support the common shell;
Anti-vibration plates connected between the legs and the bottom surface of the common shell;
The absorption refrigerator according to claim 1, further comprising: A first spray head installed inside the evaporator and disposed above the first heat transfer tube of the evaporator;
A second spray head installed inside the absorber and disposed above the second heat transfer tube of the absorber;
The absorption refrigerator according to claim 1, further comprising: The first spray head and the second spray head are:
A number of chambers for containing fluids;
A number of trench portions that receive the supply of fluid from the chamber portion;
A baffle coupled to the interior of the trench portion at each intermediate position between the chamber portions;
A finishing plate for sealing both ends of the trench portion;
A hole formed in the bottom plate of the trench part;
The absorption refrigerator according to claim 9, comprising: Each of the multiple chamber portions is
An upper plate on which a fluid inlet is formed;
A bottom plate formed with a fluid outlet;
The absorption refrigerator according to claim 10, comprising:   The absorption chiller according to claim 11, wherein the plurality of chamber parts are spaced apart along the longitudinal direction of the spray head. Each of the plurality of trench portions is
The absorption refrigerator according to claim 11, further comprising a trench opening overlapping the fluid outlet.   The absorption refrigerator according to claim 13, wherein the plurality of trench portions are spaced apart along the width direction of the spray head. An absorption refrigerator including at least an evaporator, an absorber, a regenerator, and a condenser, wherein the evaporator and the absorber are disposed on one side and the other side of a common shell with an eliminator as a boundary,
A first spray head installed inside the evaporator and disposed above the first heat transfer tube of the evaporator;
A second spray head installed inside the absorber and disposed above the second heat transfer tube of the absorber;
Including absorption refrigerator. The first spray head and the second spray head are:
A number of chambers for containing fluids;
A number of trench portions that receive the supply of fluid from the chamber portion;
A baffle coupled to the interior of the trench portion at each intermediate position between the chamber portions;
A finishing plate for sealing both ends of the trench portion;
A hole formed in the bottom plate of the trench part;
The absorption refrigerator according to claim 15, comprising: Each of the multiple chamber portions is
An upper plate on which a fluid inlet is formed;
A bottom plate formed with a fluid outlet;
The absorption refrigerator according to claim 16, comprising:   The absorption chiller according to claim 17, wherein the plurality of chamber parts are spaced apart along the longitudinal direction of the spray head. Each of the plurality of trench portions is
The absorption refrigerator according to claim 17, further comprising a trench opening overlapping the fluid outlet.   The absorption refrigerator according to claim 19, wherein the plurality of trench portions are spaced apart along the width direction of the spray head.

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