WO2019034910A1

WO2019034910A1 - Haul storage tank and a vessel comprising a haul storage tank

Info

Publication number: WO2019034910A1
Application number: PCT/IB2017/054964
Authority: WO
Inventors: Sverre Agnar JUVIK
Original assignee: Vard Design As
Priority date: 2017-08-15
Filing date: 2017-08-15
Publication date: 2019-02-21

Abstract

A catch storage tank (15) for a vessel for a vessel (10) for storage and transport of dead or dying fish and/or other marine creatures is disclosed. The catch storage tank comprises a plurality of inner surfaces (16, 17, 18) and at least one circulation opening (31) that is mounted to one of the inner surfaces for tapping of water in the catch storage tank. The at least one circulation opening is designed such that it either extends into the catch storage tank or such that it is substantially arranged in flush with the inner surface to which it is mounted. The inner surfaces of the catch storage tank, with the exception of the at least one circulation opening (31) in the case where the at least one circulation opening extends into the catch storage tank, has no further fixedly mounted device that extends into the catch storage tank from the inner surfaces.

Description

HAUL STORAGE TANK AND A VESSEL COMPRISING A HAUL

STORAGE TANK

The invention is a catch storing tank for a vessel for storing and transporting of a catch of fish and/or other marine creatures, i.e. dead or dying fish and/or marine creatures, and a vessel comprising at least one such catch storing tank.

Known ship tanks for storing and transport of a catch of dead and dying fish has today installed a lot of different equipment on the inside of the tanks. The tanks have an access hatch for personnel that is provided in the top of the tanks and have vertical ladders with platforms, railing and safety rails mounted to the inside of the tanks so that personnel can access the interior of the tanks to clean them. In today' s tanks there is also mounted pipes and pipe systems to the inside of the tanks. These pipes and pipe systems are used, for example, for loading and unloading of a catch of fish, circulation and cooling of water in the tank to maintain the quality of the catch in the tank and to fill the tank with water and to empty it for water. The equipment that is arranged in the tanks causes a risk for damage of the fish and reduces the quality of the fish as it hits the equipment that is installed in the tanks which causes the value of the fish to be reduced. All the equipment that is installed in the tanks also makes it difficult and time consuming to clean the tanks and causes a safety risk for the persons doing the cleaning. Since transport of a catch of fish and other marine creatures involves transport of dead or dying fish, the catch must be kept cool to avoid it being ruined before the catch has been processed and put in a cold storage facility. This is done by delivering the catch to a land based facility, a factory vessel that has equipment for processing the catch or in that the vessel itself, in addition to tanks for storing of the catch, also has equipment for processing and storing of processed catch. The tanks for storage of catch in existing vessels are built with two plate layers and insulation arranged in the space between the two plate layers. The insulation is normally attached to the inner plate layer. Furthermore, pipes are usually arranged in the space between the two layers. This makes it difficult to carry out maintenance on the tanks and also makes the tanks more expensive to manufacture since this requires pipes made of stainless steel.

The object of the present invention has therefore been to provide a tank for storage of a catch of fish, i.e. dead or dying fish, that better maintain the quality of the catch that is being stored and transported in a vessel with such tanks. It has also been an object of the invention to simplify the cleaning of the tanks and to reduce the risk of accidents during cleaning of the tanks. It has further been an object of the present invention to simplify the manufacturing and the maintenance of the tanks.

These objectives are achieved with a catch storage tank for fish as defined in the independent claim 1, a catch vessel as defined in the independent claim 11 and a use of the catch storage tank as defined in claim 17. Further preferred embodiments of the present invention are defined in the dependent claims 2-10 and 12- 16.

The catch storage tank according to the present invention is new both in its design and its manufacturing process, and in addition it will provide a substantial improvement of the quality of the catch. The catch storage tank is arranged such that it provides considerable saving in manufacturing of the catch storage tank and savings in maintenance during operation. It will also be safer in use since dangerous work operations during washing of the catch storage tanks after transport of a catch are removed.

The invention arrange for a better utilization of the vessel than existing technology since improvements in manufacturing techniques facilitate a simpler and improved tank arrangement.

The catch storage tanks according to the present invention is preferably designed such that it is a minimal amount of insulation and ceiling, i.e. insulation with steel plates on the outside, on the inside of the catch storage tanks. Instead the insulation is placed on the outside of the catch storage tanks. This reduces the use of materials and provides a simpler manufacturing technique and maintenance of the catch storage tanks and the associated pipe systems.

Since all pipes and systems are arranged outside the catch storage tanks, in corridors or in interspaces above or below the catch storage tanks and the ceiling, plastic pipes can be used instead of steel pipes if that is desired. That can reduce maintenance due to corrosion and give a lower weight of the device. Today' s technology with pipes in the ceilings and inside the catch storage tanks, provide limited possibilities for use of plastic pipes since the ceilings are welded after the pipes have been placed in their positions and can therefore be damaged during manufacturing of the catch storage tanks. Pipes and systems inside the catch storage tanks damage the product and reduce the quality due to blows when the catch of fish move in the catch storage tanks during transport at sea or during heavy sea.

Removal of pipes and systems from the catch storage tanks therefore improves the average quality of the catch. Access to the catch storage tanks is preferably arranged just above the bottom of the catch storage tanks by providing a hatch or a door in one of the side walls of the catch storage tanks that provides access to the catch storage tanks. Today' s known catch storage tanks have access from the top of the catch storage tanks and have vertical ladders with platforms, railing and safety rails inside the catch storage tanks. This equipment also contributes to the damage of the catch due to blows in the same way as pipe systems in the catch storage tanks do and reduces the quality of the catch when the fish moves in the catch storage tanks during transport or during heavy sea. Removal of the access in the top of the catch storage tanks therefore also improves the average quality of the catch.

The catch storage tanks are therefore preferably arranged such that there are no pipe systems, such as circulation system for cooling of water, return water or filtering system, provided inside the catch storage tank itself. The access to the catch storage tank is arranged at the lower part of the catch storage tank, with hatch/door just above the bottom. This means that ladders, hand railings and access platforms are unnecessary in the catch storage tanks. In addition, the floors in the catch storage tanks are preferably arranged horizontally or with so little slope that there is no risk that persons that walk across the floor, slide and fall. The catch storage tanks are further preferably provided with washing nozzles at the top of the catch storage tanks for washing of the inside of the tanks. The necessary pipe systems have been removed from the catch storage tanks and arranged in corridors between the catch storage tanks, in the cofferdam between deck and the catch storage tanks or between the catch storage tanks and a double bottomed tank. The catch storage tanks are preferably arranged such that there is space for pipe systems and access from the outside of the catch storage tanks. In addition it is possible to arrange pipe/access fallways between an assembly of catch storage tanks or in corners of the catch storage tanks.

Circulation of water/cooled water/cooled sea water preferably takes place with a circulation system with cavities or grooves with grates in the bottom of the catch storage tanks for intake of water. In addition it is possible to provide intakes in sides or corners of the catch storage tanks if the size of the catch storage tanks or the circulation needs should require that. Filtering of circulation water (fresh water, sea water, cooled water) preferably takes place at the top of the catch storage tanks, for example by providing a circulation outlet in form of a central grate at the top.

This grate may have varying design depending on the size of the catch storage tank and optimal filtering for the best possible circulation of the water in the catch storage tanks.

The drainage system comprises connections in corridors, corner of the catch storage tanks and in the bottom next to the well or wells for unloading of catch. The pipe systems below the catch storage tanks lie in rooms or cofferdam between the bottom and double bottom tank. The return water system may be provided with connection in the deck or the possibility for connection in the bottom of the catch storage tanks. The loading system for the catch storage tanks preferably comprises an inlet that may be a pipe or a hatch connected to the loading system of the ship. The

connection may be fixedly mounted or movable. The unloading system of the catch storage tanks preferably comprises a well in the bottom of the catch storage tanks that has connected a pipe to it for unloading of the catch by using the vacuum system of the ship.

The catch storage tank' s washing system and disinfection system are preferably connected to rooms below the catch storage tanks or cofferdam between the bottom and the double bottom tank or in a room between the deck and the catch storage tanks, alternatively with connection in corridors.

Hence, there is provided a catch storage tank for a vessel for storage and transport of dead or dying fish and/or other marine creatures. The catch storage tank comprises a plurality of inner surfaces and at least one circulation opening that is mounted to one of the inner surfaces for tapping of water in the catch storage tank. The at least one circulation opening is designed such that it either extends into the catch storage tank or such that it is substantially arranged in flush with the inner surface to which it is mounted. The inner surfaces of the catch storage tanks, with the exception of the at least one circulation opening in the case where the at least one circulation opening extends into the catch storage tank, has no further fixedly mounted device that extends into the catch storage tank from the inner surfaces.

Hence, the inner surfaces of the catch storage tank are free of devices mounted thereon, such as access equipment mounted thereon and/or pipes and pipe systems mounted thereon, that extends into the catch storage tank from the inner surfaces.

With this design of the catch storage tank one avoids that the dead or dying fish, and possibly other dead or dying marine creatures in the catch, strike equipment that is mounted to the inside of the catch storage tank. The result is less damage to the catch and thereby better quality and higher price for the catch when it is delivered.

The at least one circulation opening is preferably covered by a grate with a plurality of openings. The at least one circulation opening is normally provided in the roof, or possibly high on one or several of the walls in the catch storage tank, up under the roof in the catch storage tank. The at least one circulation opening will normally have to extend to some extent into the catch storage tank so that water in the catch storage tank can be taken out efficiently for cooling and return to the catch storage tank. The at least one circulation opening will thereby be the only device in the catch storage tank that extends into the catch storage tank when it is used.

It is also possible to provide the at least one circulation opening substantially in flush with the wall or the roof, preferably covered with a grate with a plurality of openings, even though the circulation of water in the catch storage tank then will possibly not be so efficient as when the at least one circulation opening extend somewhat into the catch storage tank. A solution where the at least one circulation opening lie substantially in flush with the wall or the roof will normally work best if the at least one circulation opening is provided in one of the walls of the catch storage tanks.

The catch storage tank preferably comprises at least one return opening in the bottom for return of circulated and cooled water, where the at least one return opening is covered with a grate with a plurality of openings.

The catch storage tank preferably further comprises at least one opening for introduction of catch into the catch storage tank. Correspondingly, the catch storage tank preferably further also comprises at least one discharge opening for discharge of catch from the catch storage tank.

The catch storage tank comprises at least one fill opening for introduction of water into the catch storage tank and/or for return of water that is removed from the catch storage tank during discharge of a catch.

The catch storage tank also preferably comprises at least one discharge opening for discharge of water from the catch storage tank.

Furthermore, the catch storage tank preferably comprises at least one sidewall and/or a floor and/or a roof that is designed with a single wall where an insulation material is provided on the outside of the single wall.

The catch storage tank may in an embodiment comprise at least one sidewall and/or a floor and/or a roof that is designed with an inner wall and an outer wall that is arranged such that a space is formed between the inner wall and the outer wall where the space is free of insulation material and where all pipes located in the space are pipes that pass straight through respectively the at least one inner wall and/or the floor and/or the roof.

The catch storage tank preferably comprises at least one cleaning device for internal cleaning and/or disinfection of the catch storage tank with a fluid cleaning agent or a disinfection agent. The cleaning device is preferably movably arranged between a first position where the cleaning device extends into the tank for internal cleaning of the catch storage tank, and a second position where the cleaning device is retracted from the catch storage tank.

Cleaning of the catch storage tank is being carried out when it is not in use. When the catch storage tank is in use, i.e. it is used to store and/or transport catch of dead and dying fish, the at least one cleaning device is demounted or retracted out of or turned out of the catch storage tank to the second position as mentioned above, such that the at least one cleaning device does not extend into the catch storage tank.

The catch storage tank preferably further comprises at least one access door for personnel, where the at least one access door is arranged in a lower part of a side wall in the catch storage tank.

There is also provided a catch vessel comprising one or more catch storage tanks, wherein the catch vessel comprises at least one catch storage tank, but preferably a plurality of catch storage tanks, as described above.

In an embodiment, a plurality of catch storage tanks are preferably provided in at least to rows and with a corridor between the at least two rows where at least some of the pipes and pipe systems that are connected to the catch storage tanks are placed.

Alternatively, the catch vessel may comprise a hull and catch storage tanks that are provided in at least two rows that are arranged near or against each other, and where there is provided a corridor between the hull and each of the at least two rows where at least some of the pipes and pipe systems that are connected to the catch storage tanks are placed.

Further, there is preferably provided a room between a bottom of the catch vessel and the bottom of the catch storing tanks where at least some of the pipes and pipe systems that are connected to the catch storage tanks are placed.

Further, the catch storage tanks are preferably insulated with an insulation material that is placed on the outside of the sidewalls and/or the floor and/or the roof of the at least one catch storage tank.

The catch vessel preferably also comprises a cooling unit for recirculation and cooling of water in the catch storage tanks.

A use of a catch storage tank as described above, is on a vessel for storage of catch of fish.

Further features and advantages of the invention will be apparent from the following description of two non-limiting, preferred embodiments of the present invention, with reference to the figures, where:

Figures 1 and 2 shows a first embodiment of a catch vessel with a plurality of catch storage tanks according to the present invention.

Figures 3 and 4 shows an alternative embodiment of a catch storage tank with a plurality of catch storage tanks according to the present invention. Figure 5 show a horizontal section through the embodiment of the catch vessel that is shown in figures 1 and 2 taken above the bottom and above the access doors of the catch storage tanks.

Figure 6 show a horizontal section through the embodiment of the catch vessel that is shown in figures 1 and 2 taken near the bottom and through the access doors of the catch storage tanks.

Figure 7 show a part of figure 6 where the part of figure 6 that shows the part of the vessel that includes the catch storage tanks, are shown enlarged.

Figure 8 show a horizontal section through the embodiment of the catch vessel that is shown in figures 3 and 4 taken above the bottom and above the access doors of the catch storage tanks.

Figure 9 show a horizontal section through the embodiment of the catch vessel that is shown in figures 3 and 4 taken near the bottom and through the access doors of the catch storage tanks. Figure 10 show a part of figure 9 where the part of figure 9 that shows the part of the vessel that includes the catch storage tanks, are shown enlarged.

In the figures a vessel 10 is shown comprising a plurality of catch storage tanks 15 provided in two different configurations. The first configuration is shown in figures 1-2 and 5-7, while the other configuration is shown in figures 3-4 and 8- 10. The catch storage tanks 15 have the same design in all figures and apart from the somewhat different configurations of the catch storage tanks 15, the two

embodiments shown in figures 1-2, 5-7 and 3-4, 8- 10 respectively, are very similar. The same reference numbers are therefore used for the same features in all the figures.

In the figures, a cross section of a vessel 10 through the catch storage tanks 15 of the vessel is shown. As can be seen in the figures, there is provided two rows of catch storage tanks 15 in the longitudinal direction of the vessel, but the number of rows may of course be different if that is desirable. The catch storage tanks 15 comprise walls 18, a floor 16 and a roof 17. The walls 18, the floor 6 and the roof 17 are preferably made of steel plates and welded together in the corner where they meet.

The catch storage tanks 15 may be formed of a desired number of walls, for example four walls 18, a desired number of floors, for example one floor, and a desired number of roofs, for example one roof, where more than one floor means that two or more floor elements do not lie in the same plane and where more than one roof should be understood as two or more roof elements that do not lie in the same plane. On the inside of a catch storage tank 15 the walls 18, the floor or the floors 16 and the roof or the roofs 17 form an inner surface of the catch surface tank. The roofs 16 in the catch storage tanks are preferably arranged such that they are horizontal or a little sloping, as indicated in figures 1-2, such that there is no danger that persons walking across the floor will slide and fall.

The catch storage tanks 15 in figures 1 and 2 are arranged next to each other and nearly next to each other respectively, while on the outside, between the catch storage tanks 15 and the hull of the vessel 10 on both sides of the vessel, there is provided a corridor 20. As shown in figure 5, a corridor 20 can also be provided in a transverse direction of the vessel 10 behind and/or in front of a group of catch storage tanks 15.

An alternative configuration of the catch storage tanks 15 are shown in figures 3-4 where the two longitudinal rows of catch storage tanks 15 are arranged next to the hull 11 on each side of the vessel 10. Between the hull and the walls 18 of the catch storage tanks 15 there is preferably provided an insulation layer 21. Between the two longitudinal rows of catch storage tanks 15 there is arranged a corridor 20. As shown in figure 8 a corridor 20 may also in this configuration of the catch storage tanks 15 be provided in a transverse direction of the vessel 10 behind and/or in front of a group of catch storage tanks 15. In addition there is, in both configurations of the catch storage tanks 15 in the vessel 10, provided an interspace 22 between the deck 12 of the vessel 10 and the roof 17 of the catch storage tanks 15, and an interspace 23 below the floor 16 of the catch storage tanks 15 as shown in figures 1-4.

For operation of the catch storage tanks 15 an extensive pipe system is needed for various types of operations such as filling and tapping of water in the catch storage tanks 15, loading and unloading of a catch, i.e. normally fish that is dead or dying, circulation of water in the catch storage tanks 15 during use when there is a catch in the catch storage tanks in order to ensure that the catch as much as possible is kept fresh. In known catch storage tanks, these pipe systems are arranged inside the catch storage tanks. In the present invention, these pipe systems are removed from the tanks and are arranged in the corridors 20 and interspaces 23 that are provided above and under the catch storage tanks 15 in the vessel 10. This brings along that devices in the catch storage tanks that the catch, i.e. in practice dead and dying fish, would otherwise have been stricken against in the motion of the sea during transport, are removed. Thereby, there will be less damage made to the catch and the quality and the value of the catch will be higher.

This design of the catch storage tanks, where personnel access equipment and pipes and pipe systems and other devices are not mounted inside or are located inside the catch storage tanks also results in a simplified manufacturing of the catch storage tanks and that it will be easier to carry out maintenance of the catch storage tanks.

There is preferably provided one or more cleaning devices 44 in the catch storage tanks 15 as shown in figures 1-4. The cleaning devices 44 comprise one or more nozzle devices 45 for washing, cleaning and disinfection of the walls 18 and/or the roof 17 and/or the floor 16, i.e. the inner surface of the catch storage tanks. When the cleaning devices 44 are not in use, they can preferably be removed from the catch storage tanks 15, either manually by personnel or preferably automatically with a motor device that lowers/raises or turns the cleaning devices 44 into or out of the catch storage tanks 15. Thereby, the cleaning devices 44 do not extend into the catch storage tanks 15 when they are used, i.e. when the catch storage tanks are used to store and/or transport a catch of dead and/or dying fish, and one avoids that the catch is stricken against the cleaning devices 44 when waves and motions in the sea causes the vessel that the catch storage tanks are arranged in, to get large motions in the sea, which causes the catch to be stricken against and be damaged by devices that extends into the catch storage tanks 15.

It should be mentioned that the design of the catch storage tanks as described above, where the catch storage tanks are not provided with personnel access equipment, pipes and pipe systems and other devices, also means that cleaning of the tanks is simplified since the cleaning devices 44 will be able to carry out an efficient cleaning without various types of equipment that are provided in the catch storage tanks 15, will be in the way for the cleaning and that could have resulted in that personnel would have had to carry out the cleaning in places where the cleaning devices 44 would not have been able to carry out an efficient cleaning, typically behind the devices relative to the nozzle devices 45 of the cleaning devices.

In order to provide personnel access for inspection of the catch storage tanks 15, for example to find out if a cleaning of the catch storage tanks have been satisfactorily carried out, a lower part 24 of one or more of the walls 18 in the catch storage tanks 15 is preferably provided with a hatch or an access door 25 for access for personnel into the catch storage tanks 15. The access doors 25 are provided at a height that makes it easy for persons to get into and out of catch storage tanks without ladders, railing, stairs or other devices that the catch could be stricken against during transport. In the roof 17 it is not necessary with access for personnel and contrary to known catch storage tanks, no access hatch/door for personnel is provided in the roof 17.

By use of the cleaning devices 44 and by moving the access door 25 for personnel to a lower part of a wall 18 in the catch storage tanks 15, the mounting of ladders with platforms, railing and other equipment to the inner surfaces of the catch storage tanks 15 is therefore avoided. This results in that there will be fewer devices in the catch storage tanks 15 that the catch, i.e. in practice dead or dying fish, is stricken against during motions in the sea and transport. Thereby there will be less damage of the catch, and the quality and the value of the catch will be higher.

On the outside of the walls 18 and the floor 16 of the catch storage tanks 15 there is provided an insulation layer 21 in order to prevent or at least reduce the heating of the water in the catch storage tanks when the vessel is in use and there is a catch of dead or dying fish in the catch storage tanks 15. An insulation layer may of course also be provided on the outside of the roof 17 even though this is not shown in the figures. Since both the insulation and pipes and pipe systems are arranged on the outside of the catch storage tanks 15, the result is simplified building since the catch storage tanks may be built first and the insulation may thereafter be put on the outside of the catch storage tanks. Since the insulation is arranged on the outside of the tanks, it will also be easier to carry out maintenance.

The catch storage tanks 15 are further provided with an opening 34 for introduction of catch into the catch storage tanks as indicated in figures 1-4. The opening 34 is preferably provided in the roof 17 of the catch storage tanks 15 and is connected to a pipe system (not shown in the figures) as needed to transport the catch to the opening 34. It should be noted that the vessel 10 may be a catch vessel, for example a trawler, and the catch may be made by the vessel itself. The catch storage tanks 15 are then used to store the catch that is made at sea until the vessel reaches shore and can deliver the catch. The catch may also have been made by another vessel that may have made a catch that is so big that it does not have sufficient storing capacity in its own catch storage tanks for the entire catch and therefore have transferred a part of or the entire catch to a vessel 10 with catch storage tanks 15 that has capacity to take over the catch.

In order to unload the catch, the catch storage tanks 15 are provided with a discharge opening 35 as indicated in the figures 1-4 and 6-7 and 9-10. The discharge opening 35 is preferably provided in the floor 16 of the catch storage tanks 15 and is connected the pipe system as needed for discharge of the fish, including transport pipes 36 and a vacuum system 37 as indicated in figures 6-7 and 9- 10.

The catch storage tanks 15 are further provided with a circulation system that circulates and cools the water in the catch storage tanks 15 during use such that the quality of the catch is kept. The circulation system comprises at least one circulation opening 31 in each catch storage tank 15 for taking out water from the catch storage tanks. The circulation openings 31 are preferably provided in an upper part of the catch storage tanks 15 as indicated in figures 1-4. The circulation opening 31 are preferably covered by a grate with a number of smaller openings as indicated in the figures. In figures 1 and 3, respectively 2 and 4, there is shown two somewhat different embodiments of the circulation openings 31.

The circulation system also comprises one or more water return openings 28 for return of water to the catch storage tanks 15. The circulation openings 31 and the water return openings 28 are connected with pipe elements 30. The pipe elements 30 conducts the water from the circulation openings 31 via a cooling unit (not shown in the figures) for cooling of the water before it is returned to the catch storage tanks 15.

The catch storage tanks 15 also comprise a fill opening 40 that preferably are provided in the roof 17 of the catch storage tanks 15, for filling the catch storage tanks 15 with water. The transport pipes for unloading of the catch are preferably also connected to the pipe system that conducts water to the fill opening 40 such that water that follow the fish during discharge of the catch in the catch storage tanks 15 may be taken out and returned to the catch storage tanks. In the same way the catch storage tanks 15 are provided with outlet openings (not shown in the figures) and associated pipe system for tapping of water in the catch storage tanks 15.

The invention has been described above with reference to a couple of non-limiting examples. A person skilled in the art would, however, understand that the invention, as it is explained above and shown in the figures, may by modified and that changes may be made within the scope of the invention as it is defined in the patent claims.

Claims

A catch storage tank (15) for a vessel (10) for storage and transport of dead or dying fish and/or other marine creatures, the catch storage tank (15) comprising a plurality of inner surfaces (16, 17, 18) and at least one circulation opening (31) that is mounted to one of the inner surfaces (16, 17, 18) for tapping of water in the catch storage tank (15), where the at least one circulation opening (31) is designed such that it either extends into the catch storage tank (15) or such that it is substantially arranged in flush with the inner surface (16, 17, 18) to which it is mounted, and where the inner surfaces (16, 17, 18) of the catch storage tanks (15), with the exception of the at least one circulation opening (31) in the case where the at least one circulation opening (31) extends into the catch storage tank (15), has no further fixedly mounted device that extends into the catch storage tank (15) from the inner surfaces (16, 17, 18).

Catch storage tank according to claim 1,

ch arac terized in that the catch storage tank (15) comprises at least one cleaning device (44) for internal cleaning and/or disinfection of the catch storage tank (15) with a fluid cleaning agent or disinfection agent, the cleaning device (44) being movable arranged between a first position where the cleaning device (44) extends into the tank (15) for internal cleaning of the catch storage tank (15), and a second position where the cleaning device (44) is retracted from the catch storage tank (15).

Catch storage tank according to claim 1 or 2,

ch arac terized in that the catch storage tank (15) comprises at least one access door (25) for personnel, the at least one access door (25) being arranged in a lower part (24) of a side wall (18) of the catch storage tank (15).

Catch storage tank according to one of the claims 1-3,

ch arac terized in that the catch storage tank (15) comprises at least one water return opening (28) in the bottom for return of circulated and cooled water.

Catch storage tank according to one of the claims 1-4,

ch arac terized in that the catch storage tank (15) comprises at least one opening (34) for introduction of a catch into the catch storage tank (15).

Catch storage tank according to one of the claims 1-5,

ch arac terized in that the catch storage tank (15) comprises at least one discharge opening (35) for discharge of catch from the catch storage tank (15).

7. Catch storage tank according to one of the claims 1-6,

ch arac terized in that the catch storage tank (15) comprises at least one fill opening (40) for introduction of water into the catch storage tank (15) and/or for return of water that is removed from the catch storage tank (15) during discharge of a catch.

8. Catch storage tank according to one of the claims 1-7,

ch arac terized in that the catch storage tank (15) comprises at least one discharge opening for discharge of water from the catch storage tank (15).

9. Catch storage tank according to one of the claims 1-8,

ch arac terized in that the catch storage tank (15) comprises at least one sidewall (18) and/or a floor (16) and/or a roof (17) that is designed with a single wall where an insulation material (21) is provided on the outside of the single wall.

10. Catch storage tank according to one of the claims 1-9,

ch arac terized in that the catch storage tank (15) comprises at least one sidewall (18) and/or a floor (16) and/or a roof (17) that is designed with an inner wall and an outer wall that is arranged such that a space is formed between the inner wall and the outer wall where the space is free of insulation material and where all pipes located in the space are pipes that pass straight through respectively the at least one inner wall and/or the floor and/or the roof.

11. A catch vessel (10) for storage and transport of dead or dying fish and/or other marine creatures comprising one or more catch storage tanks (15), wherein the catch vessel (10) comprises at least one catch storage tank (15), but preferably a plurality of catch storage tanks (15), according to one of the claims 1-10. 12. Catch vessel according to claim 11,

ch arac terized in that a plurality of catch storage tanks (15) are provided in at least to rows and with a corridor (20) between the at least two rows where at least a some of the pipes and pipe systems (30, 36) that are connected to the catch storage tanks (15), are placed. 13. Catch vessel according to claim 11 or 12,

ch arac terized in that the catch vessel (10) comprises a hull (11) and that the catch storage tanks (15) are provided in at least two rows that are arranged near or against each other, and that there is provided a corridor (20) between the hull (11) and each of the at least two rows where at least a some of the pipes and pipe systems (30, 36) that are connected to the catch storage tanks

(15), are placed.

14. Catch vessel according to one of the claims 11-13,

charac terized in that there is provided a room (23) between a bottom (13) of the catch vessel (10) and the bottom (16) of the catch storing tanks (15), where at least some of the pipes and pipe systems (30, 36) that are connected to the catch storage tanks (15), are placed.

15. Catch vessel according to one of the claims 11-14,

ch arac terized in that the catch storage tanks (15) are insulated with an insulation material (21) that is placed on the outside of the sidewalls (18) and/or the floor (16) and/or the roof (17) of the at least one catch storage tank (15).

16. Catch vessel according to one of the claims 11-15,

ch arac terized in that the catch vessel (10) comprises a cooling device for recirculation and cooling of water in the catch storage tanks (15).

17. Use of a catch storage tank according to one of the claims 1-10 on a vessel for storage of catch of dead or dying fish.