JP4454618B2 - In-house equipment for liquid cargo carriers - Google Patents

Description

  The present invention relates to a traffic device for raising and lowering and a measuring device installed in a cargo hold of a liquid transport ship.

  In recent years, liquid cargo carriers such as tankers or chemical tankers (hereinafter referred to as “liquid cargo carriers”) are equipped so that various types of liquid cargo can be loaded. A cargo hold having a corrugated partition is required so that it is necessary and does not require labor and time for cleaning.

The above cargo hold will be described with reference to FIG. 5 which is a plan view of a cargo hold of a conventional liquid cargo carrier.
As shown in FIG. 5, the cargo hold 10 includes the horizontal partition walls 15, 15 on the bow side and the stern side, with the bottom plate 11 (see FIG. 6) as the floor and the upper deck 13 (see FIG. 6) as the ceiling. A corrugated structure which is surrounded by the central bulkhead 17 and the ship-side bulkhead 19 on the shore side, and which is a flexible structure that is displaced within an elastic limit is adopted for the three surfaces of the horizontal bulkheads 15 and 15 and the central bulkhead 17. The ship-side partition wall 19 has a stiffener structure having a stiffener (bone) on the heel side. Similarly, the upper deck (upper deck) 13 is provided with bones (girder and longi) on the upper deck 13, and bones (girder and longi) are provided under the floor of the bottom plate 11 (tank top). The cargo hold 10 has a smooth wall surface although the corrugated partition walls are uneven. However, when liquid cargo is loaded in the cargo hold 10, the partition walls of the corrugated structure of the horizontal partition walls 15 and 15 and the central partition wall 17 are flexible structures, and therefore, within a range of several tens of mm as shown by the dotted line in FIG. It is known to be displaced.

  On the other hand, the cargo hold 10 is equipped with a traffic device for entering and leaving the cargo hold 10 for workers who perform operations such as cleaning. The conventional traffic apparatus will be described with reference to FIG. 6 which is a conventional traffic apparatus diagram.

A conventional traffic device 80 is constructed between a pair of brackets 81, 81 fixed to the horizontal partition 15 and protruding into the cargo hold 10 (four stages in FIG. 6), and the pair of brackets 81, 81. A stage 83, a vertical ladder 85 installed between the stage 83 located at the top and the traffic port 21, and a direct staircase 87 installed between the stages 83. That is, the traffic device 80 is supported by the horizontal partition 15 which is a corrugated partition.
Therefore, the traffic device 80 has a problem that it cannot follow the displacement of the horizontal partition 15 and cracks or breaks.

For this reason, the applicant of the present application has applied for a patent for a technique aimed at “providing a tanker tank transportation device with improved safety”, and this technique is disclosed in Japanese Patent Application Laid-Open No. 2004-330931 ( (See FIG. 7).
In order to achieve the above object, the solution taken by the present applicant will be described with reference to FIG. 7. The tanker tank transportation device 90 according to the present invention is a tanker tank transportation provided with a ladder in the tank. In the apparatus, a frame 91 provided on the bottom plate 11, stages 93, 95, 97 provided inside the frame 91 at a predetermined interval, and the stages 93, 95, 97 are sequentially connected to each other. It is characterized by comprising ladders 99, 101, 103. A frame 91 is provided on the bottom plate 11, and a vertical ladder stage 105 is also suspended from the upper deck 13 via the vertical ladder 107. Since the vertical ladder stage 105 and the stage 93 are connected by the inclined ladder 109, there is no connection with the corrugated horizontal partition wall 15, so that the ladder is not cracked. " It was was.
JP 2004-330931 A

  However, in Japanese Patent Application Laid-Open No. 2004-330931, the problem of “providing a tank transportation device for a tanker with improved safety” has been solved. However, the frame 91 is necessary on the bottom plate 11, and the number of components and components There was a problem that the weight increased slightly.

  Accordingly, the present invention provides a transportation device for a liquid cargo carrier that avoids cracks and breakage of the mounting member and the fitting main body, and has improved cargo handling and safety, and has a more simple structure for the transportation device. An object of the present invention is to provide an in-kura device with excellent economic efficiency by using a transportation device also as a measuring device for measuring the liquid level and temperature in the cargo hold.

In order to achieve the above object, an apparatus for holding a cargo carrier according to claim 1 of the present application is a liquid comprising a bottom plate, an upper deck, a lateral bulkhead and a central bulkhead of a corrugated structure, and a cargo hold surrounded by a shipside bulkhead on the shore side. In a cargo carrier, an inverted L-shaped single member comprising a vertical member fixed to the bottom plate and extending in the vertical direction and a horizontal member extending in the horizontal direction from the upper end of the vertical member and fixed to the ship-side bulkhead, or A pair of inverted L-shaped columns and a vertical member of the inverted L-shaped columns are further extended in the vertical direction and supported by the rear surface of the upper deck so that the horizontal displacement is restricted and the vertical direction is slid. The upper column and the inverted L-shaped column support the upper column, one or more stages supported by the inverted L-shaped column, and the traffic port opening in the upper deck through the stage to the bottom plate. Is And steel vertical ladder and tilt ladders or stairs forming a traffic path to the bottom plate from the transport opening, made of, is characterized in that.
Further, a storage device for a liquid cargo carrier according to claim 2 of the present application is the storage device for a liquid cargo carrier according to claim 1, wherein the members of the inverted L-shaped column and the upper column are angle steel, steel pipe or If the member of the inverted L-shaped column and the upper column is an equilateral mountain-shaped steel, the direction of the vertical member of the inverted L-shaped column and the edge of the equilateral angle-shaped steel of the upper column The direction of the edge of the equilateral angle iron of the horizontal member of the inverted L-shaped column is fixed toward the upper deck toward the central bulkhead.
The direction of the edge of the equilateral angle steel refers to the direction in which each side sandwiching a right angle when the cross section is L-shaped, starting from the right angle portion, that is, the upward direction and the right direction.
The apparatus for holding a liquid cargo carrier according to claim 3 of the present application is the apparatus for holding a liquid cargo ship according to claim 1 or 2, wherein the vertical between the traffic port and the uppermost stage is the vertical apparatus. A ladder is constructed, an inclined ladder or a spiral staircase is constructed between each of the stages, and the vertical ladder or a spiral staircase is constructed between the lowermost stage and the bottom plate.
When there is one stage, the uppermost stage and the lowermost stage are the same stage.
Furthermore, the liquid cargo carrier internal device according to claim 4 of the present application is the liquid cargo carrier internal device according to any one of claims 1 to 3, wherein the upper column and the inverted L-shaped column include: A measuring device for measuring the liquid level and temperature of the liquid cargo in the cargo hold is provided.

The present invention has the following effects by the above configuration.
(1) The base end portions of the vertical member and the horizontal member of the inverted L-shaped column are fixed to the bottom plate and the ship-side partition wall of the non-corrugated structure, respectively, and are structurally insulated from the horizontal partition wall and the central partition wall of the corrugated structure. Therefore, it is not affected by the displacement of the horizontal partition wall and the central partition wall. Further, as described above, the bottom plate and the ship side bulkhead have a flat plate structure having a stiffener on the back surface, and are not displaced greatly by a load of liquid cargo or sloshing, etc., while the ship side bulkhead is racked. Can be absorbed within the elastic limit at the connecting portion of the vertical member and the horizontal member of the inverted L-shaped column, and concentrated at the base end of the vertical member and the horizontal member which are fixed ends. The structure is such that no load acts on it.
(2) Moreover, since the upper end part of the upper column connected to the inverted L-shaped column is supported so as to be slidable only in the vertical direction, it is possible to absorb the relative displacement between the bottom plate and the upper deck. .
(3) Furthermore, the steel vertical ladder and stairs are installed on each stage and / or the inverted L-shaped column and the upper column, and each stage is supported by the inverted L-shaped column. The central partition is structurally insulated. Therefore, the entire lifting and lowering traffic device provided in the storage can avoid cracks and breakage due to the displacement of the horizontal partition wall and the central partition wall, and the traffic device itself has a simple structure.
(4) When the members of the inverted L-shaped column and the upper column are equilateral angle steel, the direction of the vertical member of the inverted L-shaped column and the edge of the equilateral angled steel of the upper column is directed to the central partition, and the inverted L-shaped column Since the direction of the edge of the equilateral angle steel of the horizontal member of the column is fixed toward the upper deck, the dirt of the inverted L-shaped column and the upper column is easily removed and cleaning becomes easy.
(5) Since the measuring device mainly composed of the guide steel pipe and the auxiliary column is reinforced by the auxiliary column and suspended from the flange flange surface, measurement errors due to the installation environment of the measuring device are prevented. At the same time, no special equipment is required to install the measuring device. Therefore, the in-kura apparatus which consists of a traffic apparatus and a measuring apparatus excellent in economy is provided.

  Hereinafter, Embodiment 1 and Embodiment 2 according to the best mode for carrying out the present invention will be described with reference to FIGS. 1 is a configuration diagram of inverted L-shaped columns and upper columns of the in-house apparatus according to the first and second embodiments, FIG. 1A is a cross-sectional view, and FIG. 1B is FIG. 1A. FIG. 1C is a detailed view of a portion C of FIG. 1A, FIG. 1D is a detailed view of a portion D of FIG. 1A, and FIG. FIG. 2B is a detailed perspective view of a portion E in FIG. 1B, FIG. 2 is a traffic device diagram of the in-house device according to the first embodiment, FIG. 2A is a cross-sectional view, and FIG. 3 is a traffic apparatus diagram of the in-house apparatus according to the second embodiment, FIG. 3 (a) is a cross-sectional view, FIG. 3 (b) is a plan view, and FIG. FIG. 6 is a side view of a measuring device in a storage device according to a second embodiment.

1 to 4, reference numeral 10 is a cargo hold, reference numeral 11 is a bottom plate, reference numeral 13 is an upper deck, reference numeral 15 is a horizontal bulkhead, reference numeral 17 is a central bulkhead, reference numeral 19 is a ship side bulkhead, reference numeral 21 is a traffic port, reference numeral 23 is a hatch, 31 is a traffic device in the in-kura apparatus according to the first embodiment, 32 is a traffic device in the in-house apparatus according to the second embodiment, 41 is an inverted L-shaped column, 411 is a vertical member, Reference numeral 413 is a horizontal member, reference numeral 415 is a pad, reference numeral 43 is an upper column, reference numeral 45 is an upper column fitting, reference numeral 47 is a stage, reference numeral 471 is a first stage, reference numeral 473 is a second stage, reference numeral 475 Is the third stage, reference numeral 49 is the vertical ladder, reference numeral 491 is the first vertical ladder, reference numeral 493 is the second vertical ladder, reference numeral 51 is the inclined ladder, reference numeral 511 is the first inclined ladder, and reference numeral 513 is the second. Inclined ladder, code 53 is screw Stairs, reference numeral 60 denotes the measuring apparatus, reference numeral 61 is guiding steel, reference numeral 63 is an auxiliary pole, reference numeral 65 is a float, reference numeral 67 coupling plate, reference numeral 69 denotes a supporting bracket.
The same elements as those described in FIGS. 5 and 6 for the conventional example are denoted by the same reference numerals in FIGS. 1 to 4, and the description thereof is omitted.

  First, the in-house apparatus according to the first embodiment will be described with reference to FIGS. 1, 2, and 4. The in-kura apparatus according to the first embodiment includes a traffic device 31 and a measuring device 60.

  The traffic device 31 mainly includes an inverted L-shaped column 41, an upper column 43, a stage 47, a vertical ladder 49, and an inclined ladder 51.

  The inverted L-shaped column 41 includes a vertical member 411 and a horizontal member 413, and the vertical member 411 has a base end portion fixed to the bottom plate 11 via a pad 415 and is erected in the vertical direction. The base of the upper end of the slab is fixed to the ship side bulkhead 19 via a pad (not shown) and joined to the tip of a horizontal member 413 projecting horizontally in the cargo hold 10. With this configuration, the inverted L-shaped column 41 has an inverted L shape when viewed from the side.

  Further, the upper column 43 extends vertically from the upper end of the vertical member 411, and the upper end of the upper column 43 is fitted to the fitting 45 having a fitting hole that is fixed to the back surface of the upper deck 13 and opens to the lower side. Inserted in the hole. A plurality of slits are formed in the outer peripheral surface of the fitting 45, and the upper end of the upper column 43 and the rear surface of the upper deck 13 have a predetermined gap. The upper end of the upper column 43 is The fitting tool 45 is loosely and slidably fitted in the fitting hole.

The inverted L-shaped column 41 and the upper column 43 are configured as described above.
(1) The inverted L-shaped column 41 and the upper column 43 are supported only by the bottom plate 11 and the ship-side bulkhead 19, and the relative displacement between the bottom plate 11 and the ship-side bulkhead 19 is at the joint between the vertical member 411 and the horizontal member 413. Therefore, not only the external force from the bottom plate 11 and the ship side bulkhead 19 is reduced, but also the displacement of the horizontal bulkhead 15 and the central bulkhead 17 is applied to the base end portions of the inverted L-shaped column 41 and the upper column 43. Is not affected at all.
(2) Since the upper end of the upper column 43 and the back surface of the upper deck 13 have a predetermined gap, the relative displacement between the bottom plate 11 and the upper deck 19 is absorbed by the predetermined gap. External force from the bottom plate 11 and the upper deck 19 does not act on the L-shaped column 41 and the upper column 43.
(3) Therefore, the inverted L-shaped column 41 and the upper column 43 are structurally independent of the bottom plate 11, the upper deck 13, the horizontal partition walls 15 and 15, the central partition wall 17, and the ship side partition wall 19 that surround the cargo hold 10. Will be.
There are effects such as.

  Note that the inverted L-shaped column 41 and the upper column 43 may be any member of angle steel, steel pipe or H-shaped steel, but in the case of equilateral angle steel, as shown in FIG. The direction of the blades of the equilateral angle irons of the vertical member 411 and the upper column 43 is fixed toward the central partition wall 17 and the direction of the blades of the equilateral angle irons of the horizontal member 413 is fixed toward the upper deck 13. By doing in this way, the angled part of the equilateral angle steel faces the upper side or the center side of the ship, and the dirt in the cargo hold 10 is easily removed and cleaning becomes easy.

  The stage 47 is formed of a rectangular flat plate grating or a perforated steel plate and has a floor surface supported by a connecting beam spanning a pair of inverted L-shaped columns 41 and 41. The stage 47 is installed at three locations that are substantially divided into four parts from the upper deck 13 to the bottom plate 11, and is a first stage 471, a second stage 473, and a third stage 475 in order from the top. Then, the first stage 471, the second stage 473, and the third stage 475 are installed so that the planar positions thereof substantially coincide. When the inverted L-shaped column 41 is a single column, the stage 47 is supported by a cantilever beam protruding from the inverted L-shaped column 41.

  A first vertical ladder 491 is bridged between the traffic port 21 and the first stage 471, and the first vertical ladder 491 is supported by the upper column 43 and the first stage 471. Similarly, a second vertical ladder 493 is bridged between the third stage 475 and the bottom plate 11, and the second vertical ladder 493 is supported by the third stage 475 and the vertical member 411. . Further, a first inclined ladder 511 and a second inclined ladder 513 are bridged between the first stage 471 and the second stage 473, and between the second stage 473 and the third stage 475, respectively. The first inclined ladder 511 and the second inclined ladder 513 are supported by the second stage 473, the third stage 475, and the vertical member 411, respectively.

  With such a configuration, a traffic route in the cargo hold 10 from the traffic port 21 to the bottom plate 11 is formed. The stage 47, the vertical ladder 49, and the inclined ladder 51 which are elements of the traffic route are inverted L-shaped columns 41. Since it is supported by the upper column 43, it is not affected by the displacement of the horizontal partition wall 15 and the central partition wall 17, similarly to the inverted L-shaped column 41 and the upper column 43.

The measuring device 60 mainly includes a guide steel pipe 61, an auxiliary column 63, and a float 65.
The guide steel pipe 61 is a thin stainless steel pipe having an outer diameter of about 34 mm. The guide steel pipe 61 is pivotally attached to the flange back surface of the hatch 23 of the traffic port 21 installed on the upper deck 13 and suspended to the vicinity of the bottom plate 11. A reed switch for measuring the liquid level is arranged in the guide steel pipe 61 at an interval of about 20 mm, and a sensor for measuring the temperature of the liquid cargo at the upper, lower and intermediate parts in the guide steel pipe 61. A thermistor is arranged.

Further, an auxiliary pillar 63 made of stainless steel equilateral angle steel having a size of about 50 mm × 50 mm is also pivoted to the flange rear surface of the hatch 23 in parallel with the guide steel pipe 61 and suspended to the vicinity of the bottom plate 11. The parallel auxiliary column 63 and the upper, middle and lower portions of the guide steel pipe 61 are connected by a flat connecting plate 67 to reinforce the guide steel pipe 61.
Further, the auxiliary column 63 is attached to the vertical member 411 and the upper column 43 of the inverted L-shaped column 41 via five support fittings 69 positioned at substantially equal intervals. Since the support fitting 69 is pivotally attached to the vertical member 411 and the upper column 43, the predetermined displacement of the vertical member 411 and the upper column 43 is absorbed by the support fitting 69 and is not transmitted to the auxiliary column 63. Yes.

The float 65 is a stainless steel buoyant body with a horseshoe shape in the plane. A pair of magnets (not shown) are built in the float 65, and the guide steel pipe 61 changes in accordance with the change in liquid level. It slides up and down around. When the horseshoe-shaped float 65 slides up and down around the guide steel pipe 61, a pair of magnets in which the float 65 has built-in reed switches arranged at intervals of about 20 mm in the guide steel pipe 61 are turned on. The liquid level can be measured according to the number of reed switches that are turned on, and is displayed on the display panel (not shown) of the liquid level gauge.
Further, the temperature of the liquid cargo is measured by a thermistor arranged in the guide steel pipe 61 and displayed on a thermometer display panel (not shown).

  With the above-described configuration, the guide steel pipe 61 is attached to the vertical member 411 and the upper column 43 via the auxiliary column 63, and the predetermined displacement of the vertical member 411 and the upper column 43 is not transmitted to the auxiliary column 63. Therefore, measurement errors due to the installation environment of the measuring device can be prevented, and accurate liquid level and temperature can be measured.

Next, the warehouse apparatus according to the second embodiment will be described with reference to FIGS. 1, 3, and 4. The warehouse apparatus according to the second embodiment includes a traffic device 32 and a measuring device 60. Is the same as the in-house device according to the first embodiment, and the difference is the traffic device 32, so only the different elements will be described here.
The traffic device 32 mainly includes an inverted L-shaped column 41, an upper column 43, a stage 47, a vertical ladder 49, and a spiral staircase 52. Among these, the configurations of the inverted L-shaped column 41 and the upper column 43 are exactly the same as those of the in-kura apparatus according to the first embodiment, and the operational effects are also the same, and thus the description thereof is omitted.

The stage 47 is formed of a substantially fan-shaped flat grating or a perforated steel plate and has a floor surface supported by a connecting beam spanned between a pair of inverted L-shaped columns 41, 41. When the inverted L-shaped column 41 is alone, a cantilever is projected from the inverted L-shaped column 41, and the stage 47 is supported by the cantilever.
A vertical ladder 49 is bridged between the traffic port 21 and the stage 47, and the vertical ladder 49 is supported by the upper column 43 and the stage 47. Further, between the stage 47 and the bottom plate 11, a spiral staircase 53 is secured by supporting the respective step plates to the vertical member 411.
With such a configuration, a traffic route in the cargo hold 10 from the traffic port 21 to the bottom plate 11 is formed. The stage 47, the vertical ladder 49, and the spiral staircase 53, which are elements of the traffic route, are inverted L-shaped columns 41. Since it is supported by the upper column 43, it is not affected by the displacement of the horizontal partition wall 15 and the central partition wall 17, similarly to the inverted L-shaped column 41 and the upper column 43.

FIG. 1 is a configuration diagram of an inverted L-shaped column and an upper column of the in-house apparatus according to Example 1 and Example 2. FIG. 1 (a) is a cross-sectional view, and FIG. 1 (b) is FIG. FIG. 1C is a detailed view of a portion C of FIG. 1A, FIG. 1D is a detailed view of a portion D of FIG. 1A, and FIG. It is the E section detailed perspective view of Drawing 1 (b). 2A and 2B are traffic device diagrams of the in-house device according to the first embodiment. FIG. 2A is a cross-sectional view, and FIG. 2B is a plan view. FIGS. 3A and 3B are traffic device diagrams of the in-house device according to the second embodiment. FIG. 3A is a cross-sectional view, and FIG. 3B is a plan view. FIG. 4 is a side view of the measuring device in the in-house device according to the first and second embodiments. FIG. 5 is a plan view of a cargo hold of a conventional liquid cargo carrier. 6A and 6B are three views of a conventional traffic device, in which FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. 6C is a side view. FIG. 7 is a side view of the traffic device of the preceding example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cargo hold 11 Bottom plate 13 Upper deck 15 Horizontal bulkhead 17 Central bulkhead 19 Ship side bulkhead 21 Traffic port 23 Hatch 31 Traffic device in the warehouse apparatus according to the first embodiment 32 Traffic apparatus 41 within the warehouse apparatus according to the second embodiment 41 Inverted L-shaped column 411 Vertical member 413 Horizontal member 43 Upper column 47 Stage 49 Vertical ladder 51 Inclined ladder 53 Spiral staircase 60 Measuring device 61 Steel pipe for guide 63 Auxiliary column 65 Float

Claims (4)

In a liquid cargo carrier equipped with a bottom, upper deck, horizontal and central bulkheads of corrugated structure, and cargo holds surrounded by the ship side bulkhead on the shore side,
An inverted L-shaped single member or a pair of inverted L members, each of which has a vertical member fixed to the bottom plate and extending vertically, and a horizontal member extending horizontally from the upper end of the vertical member and fixed to the ship-side bulkhead. With a shaped column,
An upper column that is further extended in the vertical direction from the upper end of the vertical member of the inverted L-shaped column and supported so that the horizontal displacement is restrained on the back surface of the upper deck and the vertical direction is slid;
One or more stages supported by the inverted L-shaped column;
A steel vertical ladder that is supported by the upper column and the inverted L-shaped column from the traffic opening that opens to the upper deck to the bottom plate through the stage to form a traffic route from the traffic port to the bottom plate And with sloping ladder or staircase,
An in-house device for a liquid cargo carrier characterized by comprising:   The members of the inverted L-shaped column and the upper column are each an angle steel, a steel pipe, or an H-shaped steel, and when the members of the inverted L-shaped column and the upper column are equilateral angle-shaped steel, the inverted L The vertical member of the L-shaped column and the direction of the equilateral angle steel blade of the upper column are fixed to the central partition wall, and the direction of the isometric angle steel blade of the horizontal member of the inverted L-shaped column is fixed to the upper deck. The apparatus in a storehouse for a liquid cargo carrier according to claim 1. The vertical ladder is constructed between the traffic entrance and the uppermost stage,
An inclined ladder or a spiral staircase is installed between the stages,
3. The apparatus for a liquid cargo carrier according to claim 1, wherein the vertical ladder or the spiral staircase is provided between the lowermost stage and the bottom plate. 4.   The measuring device for measuring the liquid level and temperature of the liquid cargo in the cargo hold is attached to the upper column and the inverted L-shaped column, respectively. Equipment for liquid cargo carriers in Japan.

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