CN207466901U - A kind of only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle - Google Patents

Abstract

The utility model discloses a kind of only floating structures of the LNG fuel compartments of roll-on/roll-off vessel for vehicle, the LNG fuel compartments include deck and tank cabin, the tank cabin is arranged on the lower surface on the deck, the tank cabin includes left longitudinal bulkhead, right longitudinal bulkhead and inner bottom plating, it further includes the first only float means, two second only float means and two saddles, two saddle compartment of terrain are fixed on the upper surface of the inner bottom plating, the upper surface of the saddle is equipped with the groove to lower recess, and LNG fuel tank is placed in the groove.The utility model effectively prevent the floating after LNG fuel tank breakage, meanwhile the deck above tank cabin will not directly be impacted by the upward buoyancy of LNG fuel tank, and only by the smaller only buoyancy passed over from left and right longitudinal bulkhead, it effectively reduces the deformation on deck, improves security performance.

Description

A kind of only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle

Technical field

Floatation stopping device technical field more particularly to a kind of LNG of roll-on/roll-off vessel for vehicle the utility model is related to LNG fuel tank The only floating structure of fuel compartment.

Background technology

Common LNG (liquefied natural gas) fuel tank small volume (is suitable for the following tank of 800 sides using double-deck c-type tank Son), heat preserving mode is vacuum insulation.Inner canister is cryogenic material, loads LNG；Outer tank is common material, is vacuum between interior outer tank. Fuel tank volume needed for roll-on/roll-off vessel for vehicle is larger, and single tank volume is more than 1000 sides, generally using individual layer c-type tank, heat preservation side Formula is the thermal insulation materials such as overcoating polyurethane.The difference of heat preserving mode, the requirement to only floating structure have very big difference.The former outer appearance Device can be directly welded on saddle, and saddle can play the role of only floating, and be not required to additionally set only floating structure；The latter is due to that will examine Consider low temperature, saddle cannot be welded directly with jar, it is necessary to which structure is only floated in setting.

Small-sized LNG ship or LPG ships before is only floating by the top side tank above jar or deck structure, but roll-on/roll-off vessel for vehicle Structure type has very big difference with LNG ship or LPG ships, it is impossible to indiscriminately imitate its only floating structure.It is larger in view of fuel tank volume, it is vacant Under state, real damage be totally submerged after it is very big to buoyancy, cause overlying decks structure be difficult meet and even if meet It can add deck very heavy, safety is bad and increases construction cost.In addition the ship type compares the vertical deviation of deck structure Sensitivity, the program will cause the vertical deformation in larger deck, be unfavorable for ship form design.

Utility model content

The technical issues of in the presence of the utility model mainly solution prior art, so as to provide a kind of only floating effect The only floating structure of the LNG fuel compartments of good, safe roll-on/roll-off vessel for vehicle.

The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals：

The only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle provided by the utility model, the LNG fuel compartments include deck With tank cabin, the tank cabin is arranged on the lower surface on the deck, and the tank cabin includes left longitudinal bulkhead, right longitudinal bulkhead and inner bottom plating, Its further include first only float means, two second only float means and two saddles, two saddle compartment of terrain are fixed on described The upper surface of inner bottom plating, the upper surface of the saddle are symmetrically set there are two the groove to lower recess, are placed in the groove LNG fuel tank；

Described first only float means include only fly rod, only floating cover, only over draft support and only camel block, the only fly rod is described in The center position of inner bottom plating extends straight up, and the only fly rod is fixedly connected respectively with the inner bottom plating and saddle, institute It states and only floats the top that cover is fixed on the only fly rod, the only over draft support respectively symmetrically is arranged on each LNG fuel tank Top both sides, the only camel block is arranged in the only over draft support, and in the relative inner of two LNG fuel tanks Stop both sides lower surface of the camel block respectively with the only floating cover described in two to match；

Described second, which stops float means, includes limited block, and the limited block is symmetrically disposed on the left and right longitudinal bulkhead, and Described in two on the opposite exterior lateral sides of two LNG fuel tanks stop camel block respectively with two limited block corresponding matchings.

Further, it is additionally provided with vertical rib cage on the left longitudinal bulkhead and right longitudinal bulkhead, the vertical rib cage is from the left side The top of longitudinal bulkhead or right longitudinal bulkhead extends to bottom, and be connected with the saddle and the limited block with it is described vertical Rib cage is connected.

Further, it is additionally provided with horizontal bracket between the lower surface of the only over draft support and the surface of the LNG fuel tank With longitudinal bracket, the only over draft support upper surface is additionally provided with baffle, and the only camel block is embedded in the baffle.

Further, the lower surface on the deck is additionally provided with deck deck transverse.

Further, the only camel block and lower surface, the only camel block and the limited block of the only over draft support Lower surface between be equipped with a gap, the gap is 50-70mm.

The beneficial effects of the utility model are：By by first only float means only fly rod respectively with inner bottom plating and saddle It being fixedly connected, the second limited block for stopping float means is symmetrically disposed on left and right longitudinal bulkhead, once there is tank cabin damage and water inflow, When LNG fuel tank is submerged floating, then first only float means and two second only float means will synergy, only buoyancy can pass It is delivered at the stronger left and right longitudinal bulkhead of structure and inner bottom plating, so as to come the floating that effectively prevent after LNG fuel tank breakage, meanwhile, Deck above tank cabin will not directly be impacted by the upward buoyancy of LNG fuel tank, and only be transmitted by from left and right longitudinal bulkhead The smaller only buoyancy to come over, effectively reduces the deformation on deck, improves security performance.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the structure diagram of the only floating structure of the LNG fuel compartments of the roll-on/roll-off vessel for vehicle of the utility model；

Fig. 2 is the partial enlarged view at the A of Fig. 1.

Specific embodiment

The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model Define.

Refering to shown in Fig. 1-2, the LNG fuel compartments of the roll-on/roll-off vessel for vehicle of the utility model only float structure, LNG fuel compartment packets Deck 1 and tank cabin 2 are included, tank cabin 2 is arranged on the lower surface on deck 1, and tank cabin 2 includes left longitudinal bulkhead 21, right longitudinal bulkhead 22 and interior bottom Plate 23 further includes first and stops float means 4, two second only float means 5 and two saddles 3, and two 3 compartment of terrain of saddle are fixed on The upper surface of inner bottom plating 23, the upper surface of saddle 3 are symmetrically set there are two the groove 31 to lower recess, are placed in groove 31 LNG fuel tank 6；

First only float means 4 include only fly rod 41, only floating cover 42, only over draft support 43 and only camel block 44, only fly rod 41 from The center position of inner bottom plating 23 extends straight up, and only fly rod 41 is fixedly connected respectively with inner bottom plating 23 and saddle 3, is only floated Cover 42 is fixed on the top of only fly rod 41, and only over draft support 43 respectively symmetrically is arranged on the top both sides of each LNG fuel tank 6, Only camel block 44 is arranged in only over draft support 43, and two in the relative inner of two LNG fuel tanks 6 stop camel block 44 and distinguish It is matched with the both sides lower surface of only floating cover 42；

Second, which stops float means 5, includes limited block 51, and limited block 51 is symmetrically disposed on left and right longitudinal bulkhead (21,22), and Two on the opposite exterior lateral sides of two LNG fuel tanks 6 only camel block 44 respectively with two 51 corresponding matchings of limited block.

The utility model is fixedly connected by stopping the only fly rod 41 of float means 4 by first with inner bottom plating 23 and saddle 3 respectively, Second only the limited blocks 51 of float means 5 be symmetrically disposed on left and right longitudinal bulkhead (21,22), once occur tank cabin 2 it is damaged into Water, when LNG fuel tank 6 is submerged floating, then first only float means 4 and two second only float means 5 will synergy, only float Power can be transmitted at the stronger left and right longitudinal bulkhead (21,22) of structure and inner bottom plating 23, so as to effectively prevent the LNG fuel tank 6 broken Floating after damage, meanwhile, the deck 1 of 2 top of tank cabin will not directly be impacted by the upward buoyancy of LNG fuel tank 6, and be only limited by To the smaller only buoyancy passed over from left and right longitudinal bulkhead (21,22), the deformation on deck 1 is effectively reduced, improves safety Performance.

Specifically, in order to further improve the structural strength of left longitudinal bulkhead 21 and right longitudinal bulkhead 22, left longitudinal bulkhead 21 and the right side Vertical rib cage 24 is additionally provided on longitudinal bulkhead 22, vertical rib cage 24 prolongs from the top of left longitudinal bulkhead 21 or right longitudinal bulkhead 22 to bottom It stretches, and is connected with saddle 3 and limited block 51 is connected with vertical rib cage 24.When tank cabin damage and water inflow, only camel block 44 Start with only it is floating cover 42 and limited block 51 contact, and transfer force to vertical rib cage 24 and only on fly rod 41, vertical 24 meeting of rib cage Only buoyancy is transmitted on the deck 1 of left longitudinal bulkhead 21 and right longitudinal bulkhead 22 and top, only fly rod 41 then will only buoyancy be transmitted to On the saddle 3 of lower section and inner bottom plating 23, such force structure relative distribution and all not too large, safety greatly improves, and needs The cost paid is relatively small, it is easier to meet code requirement.

In the utility model, in order to improve the structural strength of only over draft support 43,43 lower surface and LNG fuel is supportted in only over draft Be additionally provided with horizontal bracket 45 and longitudinal bracket 46 between the surface of tank 6, and in order to improve the structural strength of only over draft support 43 and The positional precision for stopping over draft support 43 is improved, only over draft supports 43 upper surfaces and is additionally provided with baffle 47, and only camel block 44 is embedded in baffle 47 It is interior.

Preferably, in order to strengthen the structural strength on deck 1, the lower surface on deck 1 is additionally provided with deck deck transverse 7.

In the utility model, only camel block 44 with the lower surface of only over draft support 43, only camel block 44 under limited block 51 A gap is equipped between surface, which is 50-70mm.Preferably, which is 60mm, it acts as：In tank cabin 2 In the case of not damaged normal/cruise, because of the movement such as rolling or heave of hull small position can occur for LNG fuel tank 6 It changes, the gap of 60mm is kept, which to stop camel block 44, would not directly touch limited block 51 or only floating cover 42, avoid in this way Be stressed directly and touch for a long time, caused by fatigue wear equal strength destroy.

The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any change or replacement expected without creative work should be covered within the scope of the utility model. Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.

Claims (5)

1. a kind of only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle, the LNG fuel compartments include deck and tank cabin, the tank Cabin is arranged on the lower surface on the deck, and the tank cabin includes left longitudinal bulkhead, right longitudinal bulkhead and inner bottom plating, which is characterized in that also Including the first only float means, two second only float means and two saddles, two saddle compartment of terrain are fixed on the interior bottom The upper surface of plate, the upper surface of the saddle are equipped with the groove to lower recess, LNG fuel tank are placed in the groove；

Described first only float means include only fly rod, only floating cover, only over draft support and only camel block, the only fly rod is from the interior bottom The center position of plate extends straight up, and the only fly rod is fixedly connected respectively with the inner bottom plating and saddle, described to stop Floating cover is fixed on the top of the only fly rod, and the only over draft support respectively symmetrically is arranged on the upper of each LNG fuel tank Portion both sides, the only camel block are arranged in the only over draft support, and two in the relative inner of two LNG fuel tanks Both sides lower surface of the only camel block respectively with the only floating cover matches；

Described second, which stops float means, includes limited block, and the limited block is symmetrically disposed on the left and right longitudinal bulkhead, and two Described in two on the opposite exterior lateral sides of the LNG fuel tank stop camel block respectively with two limited block corresponding matchings.

2. the only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle as described in claim 1, which is characterized in that the left vertical cabin Vertical rib cage is additionally provided on wall and right longitudinal bulkhead, the vertical rib cage is from the top of the left longitudinal bulkhead or right longitudinal bulkhead to bottom Extension, and be connected with the saddle and the limited block is connect with the vertical rib bone photo.

3. the only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle as claimed in claim 2, which is characterized in that the only over draft Horizontal bracket and longitudinal bracket, the only over draft support upper table are additionally provided between the lower surface of support and the surface of the LNG fuel tank Face is additionally provided with baffle, and the only camel block is embedded in the baffle.

4. the only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle as claimed in claim 3, which is characterized in that the deck Lower surface is additionally provided with deck deck transverse.

5. the only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle as claimed in claim 4, which is characterized in that the only camel The lower surface of block and the only over draft support, described stop are equipped with a gap, institute between camel block and the lower surface of the limited block Gap is stated as 50-70mm.