ES2973144T3 - Vaporization device - Google Patents

Abstract

The present application describes a vaporization device that vaporizes liquefied gas by exchanging heat of the liquefied gas with a heating liquid. The vaporization device comprises: a heat transfer panel configured from a plurality of heat transfer tubes which are provided positioned therein to guide the liquefied gas and which are aligned in a horizontal direction; a bucket that is configured to supply the heating liquid to the outer surface of the plurality of heat transfer tubes; and a manifold in which an outlet port is formed through which the heating liquid supplied to the bucket flows. The cuvette has: a bottom wall extending in the direction in which the plurality of heat transfer tubes are aligned; and a first end wall and a second end wall that are arranged in positions spaced apart from each other in the direction in which the plurality of heat transfer tubes are aligned. An inlet hole is formed in the first front wall through which the heating liquid flows. The collector is located on the first side of the end wall. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Vaporization device

Technical field

The present invention relates to a vaporizer apparatus for vaporizing a liquefied gas.

Previous technique

Various vaporization devices have been developed to vaporize a cryogenic liquefied gas. The vaporization apparatus disclosed in JP 2017 150784 A includes a bucket for spraying heating liquid having a temperature higher than liquefied gas onto an outer surface of each of a plurality of vertically arranged heat transfer tubes to guide the liquefied gas upwards. As the heating liquid sprayed from the bucket flows downward along the outer surfaces of the plurality of heat transfer tubes, the liquefied gas flowing through the plurality of heat transfer tubes exchanges heat with the heating liquid on the outer surfaces of the plurality of heat transfer tubes. Due to the heat exchange with the heating liquid, the liquefied gas vaporizes.

The bucket is arranged in a position adjacent to each of the plurality of heat transfer tubes in a horizontal direction orthogonal to the alignment direction of the plurality of heat transfer tubes, and is configured to store the heating liquid. The bucket is box-shaped extending in the direction of alignment of the plurality of heat transfer tubes. The trough includes a bottom wall having a rectangular shape extending in the alignment direction of the plurality of heat transfer tubes, and an outer peripheral wall rising upwardly from the outer peripheral edge of the bottom wall. The bottom wall and the outer peripheral wall define a storage space for storing the heating liquid. When the heating liquid is supplied beyond the capacity of the bucket, the heating liquid that has exceeded the capacity overflows from the box-shaped bucket. The heating liquid that has overflowed from the bucket subsequently flows downward over the outer surfaces of the plurality of heat transfer tubes.

For supplying the heating liquid to the bucket, the bottom wall of the bucket is formed with an inlet port through which the heating liquid flows. A water supply tube extending from a collector is connected to the inlet port of the bucket. The water supply tube extends substantially parallel with the bottom wall of the bucket below the bottom wall, thereby guiding the heating liquid to a position below the inlet port of the bucket. The front end portion of the water supply tube is bent upward below the bucket inlet port and attached to the bucket inlet port.

The water supply tube extends in a longitudinal direction of the bucket, which consequently forms a long flow path for the heating liquid. In the case where a long water supply pipe is formed to guide the heating liquid, it not only causes resistance to the flow of the heating liquid, but also increases the material cost of the water supply pipe.

Vaporizing devices similar to that disclosed in JP 2017 150784 A are also known from JP 2015 178880 A and JP 2014 202320 A. The vaporizing devices disclosed in JP 2017 150784 A, JP2015 178880 A and JP 2014202320 A have the features specified in the preamble of claim 1.

Summary of the invention

An object of the present invention is to provide a vaporizing apparatus that has an alternative configuration that allows heating liquid to be supplied to a bucket.

A vaporizer apparatus according to one aspect of the present invention is configured to vaporize liquefied gas through a heat exchange between the liquefied gas and the heating liquid having a higher temperature than the liquefied gas. The vaporization apparatus includes: a heat transfer panel including a plurality of heat transfer tubes positioned and aligned horizontally to guide the liquefied gas; a bucket located at a position lower than an upper end of the heat transfer panel for supplying the heating liquid to an outer surface of each of the plurality of heat transfer tubes; and a manifold disposed on an end side of the bucket in an alignment direction of the plurality of heat transfer tubes for supplying the heating liquid to the bucket. The trough includes a bottom wall extending in the direction of alignment of the plurality of heat transfer tubes, a first end wall extending upwardly from one end of the bottom wall, one end being closer to the collector at the alignment direction, and a second end wall extending upward from the other end of the bottom wall, and away from the first end wall in the alignment direction. The first end wall has an inlet port to allow the heating liquid to flow.

The vaporization apparatus described above makes it possible to supply the heating liquid via a shorter path to a bucket where the heating liquid is stored.

The object, features and advantages of the present invention will be further clarified by the following detailed description and the accompanying drawings.

Brief description of the drawings

Figure 1 is a schematic perspective view of an open grid type vaporizer apparatus according to a first embodiment.

Figure 2 is a schematic cross-sectional view of the vaporizer apparatus.

Figure 3 is a schematic cross-sectional view of a box used in the vaporizer apparatus.

Figure 4 is a schematic perspective view of an obstructor arranged in the box.

Figure 5 is a schematic perspective view of another obstructor arranged in the box.

Figure 6 is a schematic cross-sectional view of a box having a single lid member. Figure 7 is a schematic cross-sectional view of a box having a single lid member. Figure 8 is a schematic cross-sectional view of a box having a single lid member. Figure 9 is a schematic cross-sectional view of a box having a single lid member. Figure 10 is a schematic cross-sectional view of a box having a single lid member.

Figure 11 is a schematic cross-sectional view of a box having a single lid member. Figure 12 is a schematic cross-sectional view of a box having two lid members.

Figure 13 is a schematic cross-sectional view of a box having two lid members.

Figure 14 is a schematic cross-sectional view of a box having two lid members.

Figure 15 is a schematic cross-sectional view of a box having two lid members.

Figure 16 is a schematic cross-sectional view of a box having two lid members.

Figure 17 is a schematic cross-sectional view of a box having two lid members.

Figure 18 is a schematic cross-sectional view of a box having two lid members.

Figure 19 is a schematic cross-sectional view of a box having two lid members.

Figure 20 is a schematic cross-sectional view of a box having two lid members.

Figure 21 is a schematic cross-sectional view of a box having two lid members.

Figure 22 is a schematic cross-sectional view of a box in which an obstructor is in contact with a lid member.

Figure 23 is a schematic cross-sectional view of a box in which an obstructor is in contact with a lid member.

Figure 24 is a schematic cross-sectional view of a box in which an obstructor is in contact with a lid member;

Figure 25 is a schematic cross-sectional view of a box in which an obstructor is in contact with a lid member.

Figure 26 is a schematic cross-sectional view of a box in which a vertical lid is provided over the lid members.

Figure 27 is a schematic cross-sectional view of a box in which vertical lids are provided on the lid members.

Figure 28 is a schematic cross-sectional view of a box in which a vertical lid is provided over the lid members.

Figure 29 is a schematic cross-sectional view of a collector used in the vaporizer apparatus.

Figure 30 is a schematic cross-sectional view of a housing in which a porous plate is mounted at an inlet port.

Figure 31 is a schematic cross-sectional view showing another obstructor.

Figure 32 is a schematic cross-sectional view showing another obstructor.

Figure 33 is a schematic cross-sectional view showing another obstructor.

Figure 34 is a schematic perspective view of an open grid type vaporizer apparatus according to a second embodiment.

Figure 35 is a schematic cross-sectional view of the vaporizer apparatus shown in Figure 34.

Description of the achievements

First realization

Figure 1 is a schematic perspective view illustrating a vaporizer apparatus (ORV) 100 of an open grid type according to a first embodiment. Figure 2 is a schematic cross-sectional view of the vaporizer apparatus 100, taken along a vertical plane. The vaporizer apparatus 100 will be described with reference to Figures 1 and 2.

The vaporizer apparatus 100 is configured to vaporize a liquefied natural gas (hereinafter referred to as "liquefied gas") by performing a heat exchange between the liquefied gas and the heating liquid having a higher temperature than the liquefied gas. A vaporized natural gas obtained by heat exchange will be referred to as “vaporized gas” hereinafter. Seawater is used as the heating liquid in the production. Alternatively, another liquid that has a higher temperature than the liquefied gas can serve as a heating liquid.

The vaporizer apparatus 100 includes a gas flow portion in which the liquefied gas and vaporized gas flow and a seawater flow portion in which the seawater flows.

The gas flowing portion includes a lower manifold 111, an upper manifold 112 and a plurality of heat transfer panels 113. The lower manifold 111 and the upper manifold 112 extend in a horizontal direction. The upper collector 112 extends above and substantially parallel to the lower collector 111. The plurality of heat transfer panels 113 are connected to the upper collector 112 and the lower collector 111. The plurality of heat transfer panels 113 are connected They align in the horizontal direction and are spaced apart from each other. The extension direction of the lower collector 111 and the upper collector 112 is the same as the alignment direction of the plurality of heat transfer panels 113.

The lower collector 111 is adapted to distribute the liquefied gas to the plurality of heat transfer panels 113. The plurality of heat transfer panels 113 is adapted to perform heat exchange between the liquefied gas and the seawater supplied from the flowing part of sea water. The upper collector 112 is adapted to collect the vaporized gas obtained by heat exchange between the liquefied gas and the seawater. The upper manifold 112 is connected to a delivery device (not shown) to supply the vaporized gas to a predetermined demanding destination (not shown).

Each of the plurality of heat transfer panels 113 includes a lower header tube 114, an upper header tube 115, and a plurality of heat transfer tubes 116. Each of the lower header tubes 114 and the upper header tube 115 are extends in a horizontal direction that perpendicularly intersects the extension direction of the lower collector 111 and the upper collector 112, and vertically spaced from each other. The plurality of heat transfer tubes 116 extend vertically between the lower collector tube 114 and the upper collector tube 115. The lower collector tube 114 extends from the lower collector 111 and defines a lower end of the heat transfer panel 113, and the upper collector tube 115 extends from the upper collector 112 and defines an upper end of the heat transfer panel 113. The plurality of heat transfer tubes 116 extend upwardly from the lower collector tube 114 and join the tube upper collector 115. The plurality of heat transfer tubes 116 are aligned in the extension direction of the lower collector tube 114 and the upper collector tube 115. The alignment direction of the plurality of heat transfer tubes 116 is referred to as successive “first horizontal direction”. The horizontal direction that perpendicularly intersects the first horizontal direction and is the direction extending from the lower manifold 111 and the upper manifold 112 is hereinafter referred to as the “second horizontal direction.”

The seawater flowing portion is configured to spray the seawater to the plurality of heat transfer tubes 116 of each of the plurality of heat transfer panels 113. The seawater flowing part includes a spray section for storing and spraying seawater and a supply section for supplying seawater to the spray section. The seawater flowing portion further includes a flow regulating portion for regulating the flow of seawater from the supply section to the spray section, and a lift suppression portion for suppressing a rise of the liquid surface. of seawater produced in the spray section.

The supply section has a pump 121 for discharging the seawater, a manifold 122 for guiding the seawater discharged from the pump 121 in the second horizontal direction, and a plurality of supply pipes 123 connected to the manifold 122. The Manifold 122 extends in the second horizontal direction, and spaced the plurality of heat transfer panels 113 in the first horizontal direction. The collector 122 has a plurality of outlet ports 125 from which seawater that has flowed into the collector 122 exits. The plurality of outlet ports 125 are in a line in the second horizontal direction and spaced apart. The plurality of outlet ports 125 join the plurality of supply tubes 123 respectively. An end of the supply tube 123 connected to the outlet port 125 is hereinafter referred to as the “upstream end.” The opposite end of the supply tube 123 will hereinafter be referred to as the "downstream end." The downstream end is connected to the spray section.

The spray section has a plurality of buckets 130 arranged in correspondence with the plurality of supply tubes 123, respectively. The plurality of buckets 130 and the plurality of heat transfer panels 113 are arranged alternately in the second horizontal direction.

In the vertical direction, each of the plurality of buckets 130 is arranged in a lower position than the upper collector tube 115. The bucket 130 is adjacent to an upper portion of the plurality of heat transfer tubes 116 of the corresponding panel of heat transfer 113 in the second horizontal direction, the upper portion is at a position higher than the center of the plurality of heat transfer tubes 116 in the vertical direction. The bucket 130 is arranged in a higher position than the collector 122 having the outlet port 125.

Each of the plurality of buckets 130 includes a box body 131 for storing seawater that has entered through the corresponding supply tube 123, and a guide portion 139 for guiding seawater that has overflowed from the box body 131 to an outer surface of each of the plurality of heat transfer tubes of the corresponding heat transfer panel 113.

The box body 131 has a rectangular-shaped cover that is long in the first horizontal direction and short in the second horizontal direction. The box body 131 opens upwards. The box body 131 has a substantially rectangular bottom wall 132 elongated in the first horizontal direction, and a peripheral wall 133 rising upward from an outer peripheral edge of the bottom wall 132.

The peripheral wall 133 includes a pair of side walls 134, 135 rising upward from a pair of longitudinally extending end edges of the bottom wall 132, and a pair of a first end wall 136 and a second end wall 137 extending upward from a pair of end edges extending across the width of the bottom wall 132. The side walls 134, 135 are in opposite positions spaced apart from each other in the second horizontal direction while the first end wall 136 and the second end wall 137 are in opposite positions spaced apart from each other in the first horizontal direction.

The dimension of the side walls 134, 135 and the bottom wall 132 in the first horizontal direction is set to be larger than the alignment dimension of the plurality of heat transfer tubes 116 in the first horizontal direction. The box body 131 is arranged in such a way that the side walls 134, 135 overlap the entire plurality of heat transfer tubes 116 in the second horizontal direction.

The first end wall 136 is arranged closer to the outlet port 125 of the manifold 122 than the second end wall 137. The first end wall 136 has an inlet port 138 connected to the downstream end of the supply tube 123 ( see figure 1). A center of the entry port 138 is located below a center of the first end wall. In the second horizontal direction, a position of the inlet port 138 of the first end wall 136 substantially coincides with a position of the outlet port 125 of the collector 122. The trough 130 is arranged in a position higher than the collector 122. In Consequently, the position of the inlet port 138 formed in the first end wall 136 of the trough 130 is also higher than that of the outlet port 125 of the collector 122.

In the four troughs 130 aligned in the second horizontal direction and spaced apart, each of the remaining troughs 130 other than the two outermost troughs 130 has the first end wall 136 and the second end wall 137 higher than the walls sides 134, 135. Specifically, each of the first end wall 136 and the second end wall 137 has a top end that extends in a position higher than the top ends of the side walls 134, 135.

In the right bucket 130 of the two outermost buckets 130, the first end wall 136, the second end wall 137 and the right side wall 135 are higher than the left side wall 134 (i.e., the side wall 134 that faces heat transfer panel 113). Specifically, each of the first end wall 136, the second end wall 137 and the side wall 135 has a top end that extends in a position higher than a top end of the side wall 134. In other words, a side wall closest to the heat transfer panel 113 is shorter than the other side wall opposite a side wall.

In the left trough 130 of the two outermost troughs 130, the first end wall 136, the second end wall 137 and the left side wall 134 are higher than the right side wall 135 (i.e., the side wall 135 that faces heat transfer panel 113). Specifically, each of the first end wall 136, the second end wall 137, and the side wall 134 has a top end that extends to a position higher than the top end of the side wall 135.

The guide portion 139 has an inclined surface that slopes downward from an upper end edge of at least one of the side walls 134, 135 to the heat transfer panel 113 which is the destination of the seawater supply. The inclined surface is used to guide the seawater that has flowed over the upper end edge of the side walls 134, 135 of the box body 131 after being supplied beyond the capacity of the box body 131 to the plurality of tubes. heat transfer panel 116 of the corresponding heat transfer panel 113.

In the left bucket 130 of the two outermost buckets 130, the guide portion 139 protrudes to the right from the upper end of the side wall 135 closest to the heat transfer panel 113. No guide portion 139 is provided a the opposite side wall 134. In the right bucket 130 of the two outermost buckets 130, the guide portion 139 protrudes to the left from the upper end of the left side wall 134. In each of the remaining buckets, the guide 139 protrudes outward from both upper ends of the side walls 134, 135.

The flow regulating portion and the surge suppressing portion are provided in the box body 131. The flow regulating portion and the surge suppressing portion will be described below with reference to Figures 1 and 3. Figure 3 is a view schematic in longitudinal cross section of the box body 131.

The flow regulating portion includes a closure member 140 mounted on an interior surface of the box body 131 to close a portion of the inlet port 138. The closure member 140 is used to ensure substantially uniform entry of seawater with the other buckets 130.

As the closure member 140, a hole is preferably used, the hole being formed with an opening 141 in the first horizontal direction. The opening 141 has a smaller area than the inlet port 138. The closure member 140 may be mounted on an interior surface of the first end wall 136 and/or the side walls 134, 135. Additionally, the closure member 140 may be removable from the first end wall 136 and/or the side walls 134, 135. For example, a vertical groove may be formed on the inner surfaces of the side walls 134, 135, with one side end of the closure member 140 being inserted. in the vertical slot.

When an orifice member is replaced with another orifice member having a smaller opening area in the box body 131 of one of the plurality of buckets 130, the bucket 130 that is mounted in replacement with the other orifice member receives a reduced seawater influx, while the other basins 130 receive a greater seawater influx. In contrast, when the orifice member is replaced with another orifice member having a larger opening area, the bucket 130 that is mounted with the other orifice member having the larger opening area receives a greater input of seawater, while the other buckets 130 receive a decrease in the seawater input. To distribute a uniform amount of seawater to the plurality of buckets 130, it is preferable to choose an orifice as a closure member 140 for each of the plurality of buckets 130, the orifice having an opening area suitable for the plurality of buckets 130. .

The lift suppression portion has an obstructor provided between the first end wall 136 and the second end wall 137. The obstructor is provided such that seawater that has flowed from the inlet port 138 impinges on the obstructor. before colliding with the second end wall 137. The obstructor includes a deflector plate (or obstructing pieces) 151 that rise upward from the bottom wall 132. In Figure 3 it is shown that three deflector plates 151 are provided.

A plurality of baffle plates 151 are aligned in the first horizontal direction between the first end wall 136 and the second end wall 137, and are spaced apart. The plurality of deflector plates 151 are mounted on the bottom wall 132 and/or the side walls 134, 135. The plurality of deflector plates 151 can be removed from the bottom wall 132 and/or the side walls 134, 135.

A height dimension of the baffle plate 151 is less than a height dimension of the peripheral wall 133, so that a space is defined above the baffle plates 151, which space allows seawater to flow in the first direction. horizontal.

The flows of liquefied gas and seawater in the vaporizer apparatus 100 will now be described.

Referring to the flow of the liquefied gas in the gas flow portion, the liquefied gas is supplied to the lower manifold 111 by a pump (not shown). The liquefied gas that has flowed into the lower collector 111 flows into the lower collector tube 114 of each of the plurality of heat transfer panels 113. The liquefied gas that has flowed into the lower collector tube 114 flows upward through the plurality of heat transfer tubes 116 extending upward from the lower collector tube 114. Meanwhile, the liquefied gas is vaporized by exchange of heat between the liquefied gas and the seawater supplied from the seawater flow section. The vaporized gas flows upward to the upper collector tube 115. Subsequently, the vaporized gas flows through the upper collector tube 115 and is collected in the upper collector 112.

With reference to the seawater flow in the seawater flowing part, the seawater is supplied to the collector 122 by the pump 121. The seawater is guided in the second horizontal direction by the collector 122, and distributed to the plurality of supply tubes 123 connected to the collector 122. The seawater that has flowed through the supply tube 123 flows into the corresponding bucket 130. The seawater that has flowed into the bucket 130 forms a liquid layer in the space defined by the bottom wall 132 and the peripheral wall 133. When the entry of seawater into the trough 130 exceeds the capacity of the box body 131, the seawater overflows from the edge of the upper end of the side walls 134, 135. Subsequently, the seawater flows downward over the inclined surface of the guide portion 139. Consequently, the seawater is dispersed over the upper portion of the plurality of heat transfer tubes 116 on the side of the box body 131.

The dispersed seawater flows downward forming a liquid film on the outer surface of each of the plurality of heat transfer tubes 116. The liquefied gas flows upward into each of the plurality of heat transfer tubes 116. Consequently, the heat exchange takes place between seawater and liquefied gas. In other words, the liquefied gas vaporizes. The vaporized gas passes through the plurality of upper collector tubes 115 and is collected in the upper collector 112 as described above.

The flow path of the seawater from the collector 122 to the plurality of buckets 130 will be described below in comparison with the structure of the conventional vaporizing apparatus.

The conventional structure has a flow path that allows seawater to flow from the bottom surface of the basin. The flow path extends from the collector beyond the first end wall and joins the inlet port formed on the bottom surface of the bucket. Unlike the conventional structure, the supply tube 123 does not extend beyond the first end wall 136 of the collector 122, thereby reducing not only the material cost of the supply tube 123 but also the flow resistance of the seawater flowing through supply pipe 123.

In the conventional structure, fluidic devices, such as butterfly valves and orifice members, are generally provided in the flow passage extending from the manifold to the plurality of buckets. These devices are used to suppress a variation in the amount of seawater flow into a plurality of buckets. In the embodiment, the closure member 140 is used to suppress a variation in the amount of seawater flow between the plurality of buckets. Closure member 140 will now be described in comparison to conventional fluidic devices.

In replacing the closure member 140, an operator performing a replacement operation can easily access the closure member 140 due to an upward opening of the box body 131. The operator can remove the mounted closure member 140 from the box body. box 131, and mounting another closure member on the box body 131. Unlike the configuration in which the butterfly valves and orifice members are mounted on the supply tube 123, the replacement of the closure member 140 does not requires disassembly of the supply tube 123. Additionally, the operator can perform the replacement operation in a larger space above the bucket 130, not in a smaller space defined by shorter supply tubes 123. Consequently, the operator can replace the closure member 140 more easily.

The seawater that has passed through the closure element 140 collides with the plurality of deflector plates 151. The effect that the deflector plates 151 cause on the seawater flowing in the box body 131 will be described below.

Figure 3 shows a straight line (solid line) extending in the first horizontal direction above the plurality of deflector plates 151 and a dotted curved line. The solid line schematically illustrates a putative liquid surface of seawater in a configuration that has the plurality of deflector plates 151. The dotted line schematically illustrates a putative liquid surface of seawater in a configuration that does not have the plurality of deflector plates 151.

In the configuration that does not have baffle plates 151, seawater that has sequentially passed through the inlet port 138 and the opening 141 of the closing member (orifice member) 140 will vigorously impinge on an interior surface of the second wall of end 137. Apart from the sea water that has collided with the second end wall 137 flows energetically upward along the inner surface of the second end wall 137. This results in a liquid surface that rises upward from the seawater at a location closer to the interior surface of the second end wall 137 in the box body 131, as shown in the dotted line.

On the other hand, in the configuration having the plurality of deflector plates 151, a part of the seawater that has sequentially passed through the inlet port 138 and the opening 141 of the closing member (orifice member) 140 will collide against a baffle plate 151 provided further upstream (i.e., a baffle plate 151 provided closer to the first end wall 136). A part of the seawater that has hit the baffle plate 151 turns its direction to flow in directions other than the first horizontal direction, while the other seawater passes over the baffle plate 151 to flow towards the second end wall 137. The seawater having passed over the upstream baffle plate 151 collides with the next baffle plate 151. The seawater collides with the plurality of baffle plates 151 one after another, resulting in a smaller amount of water. sea energetically flowing towards the second end wall 137. The collision force between the sea water and the second end wall 137 is smaller in the configuration having the plurality of deflector plates 151 than the configuration that does not have deflector plates 151, which then reduces the upward flowing force of the seawater caused by the collision of the seawater against the second end wall 137. This results in a lowered liquid surface that rises at the location closest to the inner surface of the second end wall 137.

The number of provided baffle plates 151 can preferably be determined based on the flow of seawater in the basin 130 and a flow condition of the seawater in the basin 130 to make the liquid surface of the seawater in the basin 130 substantially flat. Accordingly, the obstructor may have one or two deflector plates 151, in addition it may have three or more deflector plates 151.

Instead of the deflector plate 151, other obstructors may allow seawater that has entered from the inlet port 138 to impinge on the other obstructors. Alternative members usable as obstructors will be described with reference to Figures 4 and 5. Figures 4 and 5 are schematic perspective views of an alternative obstructor.

Instead of the baffle plate 151 having no through hole, a porous plate 152 having many through holes in the first horizontal direction can be used as an obstructor (see Figure 4). The through holes of the porous plate 152 allow seawater to pass through them. Accordingly, the porous plate 152 may have substantially the same height dimension as the peripheral wall 133.

Instead of the baffle plate 151 being thin in the first horizontal direction, a small block 153 can be used whose dimensional differences in the first horizontal direction, the second horizontal direction and the vertical direction are smaller than those of the baffle plate 151. as an obstructor (see figure 5). The shape and size of a member serving as a lift suppression portion can preferably be determined to make the liquid surface of seawater in the box body 131 substantially flat.

The baffle plate 151, the porous plate 152 and the block 153, which are examples of the lift suppression portion, weaken the force of the seawater towards the second end wall 137 before the seawater impinges on the second end wall 137, thus suppressing the rise of the liquid surface. However, the lift suppression portion may be configured to have a member that is provided to allow the heating liquid having an upward flow generated due to the collision of the heating liquid to collide against the member. The lift suppression portion that is provided to allow the heating liquid having upward flow due to the collision of sea water against the second end wall 137 to impinge on the lift suppression portion will be described with reference to the figure 1 and Figures 6 to 25. Figures 6 to 25 are schematic cross-sectional views of the box body 131.

The lift suppression portion may be configured to have a plate-shaped lid member 154 provided at a location closer to the second end wall 137 in the case body 131. The lid member 154 has many through holes. Accordingly, the cap member 154 may preferably be made of a porous plate (plate). The cap member 154 may be used alone as a rise suppression portion (see Figure 6), or may be used in combination with an obstructor (a baffle plate 151, for example) as a rise suppression portion.

The cap member 154 is provided to rest in a substantially horizontal plane extending from a proximity of the second end wall 137 in the first horizontal direction. The lid member 154 vertically divides a portion of an interior space of the box body 131 at the location closest to the second end wall 137. A pair of side ends of the lid member 154 may be attached to the inner surfaces of the walls. sides 134, 135. A downstream end of the cap member 154 may join and contact the interior surface of the second end wall 137 (see Figure 6). Alternatively, the downstream end of the cap member 154 may be positioned at a location slightly removed in the first horizontal direction from the interior surface of the second end wall 137 (see Figure 7). The downstream end of the cap member 154 is close to the interior surface of the second end wall 137, while an upstream end of the cap member 154 is away from the interior surface of the first end wall 136. The member The lid 154 may preferably be removable from the box body 131.

The cover member 154 is provided in a higher position than the inlet port 138. Consequently, most of the seawater that has flowed from the inlet port 138 through the opening of the closure member (member of hole) 140 towards the box body 131 collides with the inner surface of the second end wall 137 below the cover member 154.

Seawater flowing upward due to a collision under the cover member 154 collides with a lower surface of the cover member 154. Consequently, most of the seawater that has collided with the cover member 154 flows to along the bottom surface of the cap member 154 to the first end wall 136 in the upstream portion. Accordingly, the liquid surface rising at the location closest to the second downstream end wall 137 can be effectively suppressed.

A portion of the seawater that has struck the cover member 154 flows upward to a space above the cover member 154 through the through holes passing in a vertical direction through the cover member 154. Therefore, The cap member 154 does not excessively prevent seawater from forming a liquid layer on the cap member 154. In other words, the cap member 154 does not excessively suppress the overflow of seawater from the end edge. waters below basin 130.

As long as a suppression effect of a rising liquid surface can be achieved at a specific location throughout the trough 130, it is not necessary for the lid member to have through holes. In this case, seawater flows into the space above the cap member through a space between the upstream end of the cap member and the first upstream end wall 136.

In Figures 6 and 7, the cap member 154 is provided at a location closer to the second end wall 137 than to the first end wall 136. However, the cap member 154 may be provided at a location closer closer to the first end wall 136 than to the second end wall 137 (see Figure 8). In this case, the heating liquid having an upward flow impinges against the cover member 154, the upward flow having been generated at a location closer to the first end wall having the inlet port 138. In this way, the intensity of the upward flow, of the heating liquid is reduced at the location closest to the first end wall. Consequently, the rise of the surface of the heating liquid at the location closest to the first end wall is suppressed.

In Figures 6 to 9, the cap member 154 is provided at a location closer to the first end wall 136 or the second end wall 137. However, the cap member 154 may be provided at a location between the first end wall 136 and the second end wall 137 with a substantially equal distance from the first end wall 136 and the second end wall 137, that is, at a substantially intermediate location, in the longitudinal direction of the box body 131 or the first horizontal direction (see figure 9). This configuration achieves suppression of the surface rise of the heating liquid at the substantially intermediate location in the longitudinal direction of the box body 131.

Figures 6 to 8 show a single porous plate that serves as a lid member 154. However, a plurality of porous plates (plates) 155 can serve as a lid member 154 in the box body 131 (see Figure 10). These porous plates 155 are spaced apart in the first horizontal direction. Furthermore, these porous plates 155 are provided in substantially the same vertical position (in a position higher than the inlet port and lower than an upper end of the box body 131). The downstream porous plate 155 is equivalent to the cap member 154 described above with reference to Figures 6 to 8. In other words, the downstream porous plate 155 contributes to the suppression of the surface of the liquid rising in a location closer to the second end wall 137. The other porous plates 155 contribute to the suppression of the liquid surface that ripples due to sea water from the inlet port 138. An inlet port 138 that is formed in A lower portion of the first end wall 136 serves to prevent rippling of the liquid surface to a certain extent. Furthermore, these porous plates 155 prevent the surface of the liquid from rippling more effectively.

Instead of the plurality of porous plates 155, a plurality of thin plates, each of which does not have through holes, can be mounted in the same position as the porous plates 155. In this case, seawater flows into a space above the thin plates through a space between neighboring thinner plates. The plurality of thin plates can exert the effect of suppressing the ripples and rises of the liquid surface.

A single porous plate 156 that is long in the first horizontal direction can serve as a cap member 154 (see Figure 11) to obtain the effect of suppressing the surface of the rippling and rising liquid. The single porous plate 156 shown in Figure 11 vertically divides the interior space of the box body 131 between the interior surface of the first end wall 136 and the interior surface of the second end wall 137. The porous plate 156 is located vertically. in the same position as the porous plate 155 in Figure 10. Seawater flows to the space above the porous plate 156 through the through holes of the porous plate 156.

In Figures 6 to 11, the lid member 154 is provided individually on the box body 131. However, a plurality of lid members 154 may be provided on the box body 131 (see Figures 12 to 15). Specifically, another cap member 154 is disposed above and away from cap member 154. Figures 12 to 21 illustrate two cap members 154 vertically spaced apart from each other. The cover members 154 are arranged above the inlet port 138 and below the liquid surface of the heating liquid in the box body 131.

Both lid members 154 in Figure 12 extend completely from the inner surface of the first end wall 136 to the inner surface of the second end wall 137, and vertically divide the internal space of the box body 131. Each of The cap members 154 may be made of the porous plate 156 described with reference to Figure 11.

When an upward flow of the heating liquid is generated under the lower cap member 154, the upward-flowing heating liquid sequentially collides with the lower cap member 154 and the upper cap member 154. Consequently, the two cap members 154 in Figure 12 decreases the intensity of the upward flow of the heating liquid more effectively than the single cap member 154 in Figure 11. In this way a rise of the surface of the heating liquid is reliably suppressed. In Figure 12, lid members 154 extending along the entire length of the box body 131 suppress a liquid surface that undulates and rises along the entire length of the box body 131.

In case it can be assumed that such an intensive upward flow of the heating liquid is generated in a specific region, the structure of the two cap members 154 can be applied only to the specific region (see Figures 13 to 15). The lower cap member 154 in Figures 13 to 15 has the same structure as the lower cap member 154 in Figure 12. However, in Figures 13 to 15, the upper cap member 154 is shorter than the lower cap member 154 in Figure 12. of lower cover 154 in the longitudinal direction of the box body 131.

In a case where the intensive upward flow of the heating liquid can be assumed to be generated at a location closer to the first end wall 136, the cap members 154 are provided at the location closest to the first end wall 136. (see Figure 13). In the case where the intensive upward flow of the heating liquid can be assumed to be generated at an intermediate location in the longitudinal direction of the box body 131, the upper cover member 154 is provided at the intermediate location of the box body 131 ( Figure 14). In the event that the intensive upward flow of the heating liquid can be assumed to be generated at a location closer to the second end wall 137, the upper cap member 154 is provided at the location closest to the second end wall 137 (see Figure 15).

In Figures 13 to 15, the shorter cap member 154 is disposed above the longer cap member 154. However, the shorter cap member 154 may be disposed below the longer cap member 154 (see Figures 16 to 18). In Figure 16, the shorter lid member 154 is disposed at a location closer to the first end wall 136. In Figure 17, the shorter lid member 154 is disposed at an intermediate location on the box body. 131. In Figure 18, the shorter cap member 154 is disposed at a location closer to the second end wall 137.

In the event that the shorter cap member 154 is disposed above the longer cap member 154 (Figures 13 to 15), a region that includes the shorter cap member 154 and another region that does not include any cap member Shorter cap 154 are defined near the surface of the heating liquid. In this case, the liquid surface is likely to be influenced in its shape by the existence or absence of the shorter cap member 154 on the flow of the heating liquid. On the contrary, in the case that the shorter cap member 154 is arranged below the longer cap member 154 as shown in Figures 16 to 18, it is unlikely that the liquid surface will be influenced in its shape. of the existence or absence of the shorter cap member 154 on the flow of the heating liquid due to the longer cap member 154.

In the event that an upward flow of the heating liquid can be assumed to be intensive at a specific location in the box body 131, a long cap member 154 is not necessarily required (see Figures 19 to 21). In the event that it can be assumed that a single cap member 154 is insufficient to suppress a liquid surface that rises due to an excessively intensive upward flow that is generated at a location closer to the first end wall 136, two short cap members 154 may be vertically aligned and spaced apart at the location closest to the first end wall 136 (see Figure 19). In the case where intensive upward flow can be assumed to be generated at an intermediate location of the box body 131, the two short cap members 154 may be vertically aligned and spaced apart from each other at the intermediate location of the box body 131 ( see figure 20). In the event that the intensive upward flow can be assumed to be generated at a location closer to the second end wall 137, the two short cap members 154 can be vertically aligned and spaced apart at the location closest to the second end wall 137 (see Figure 21).

12 to 21 each illustrate the two lid members 154. However, in the box body 131, there may be more than two lid members 154 that are arranged vertically.

One of the cover members 154 arranged on the box body 131 can be used to fixedly fix a baffle plate 151 (see Figures 22 to 24). The cap members 154 in Figures 22 to 24 have the same structure as the cap members 154 in Figure 13.

In Figures 22 to 24, the substantially vertical deflector plate 151 is attached to the lower long cap member 154. The deflector plate 151 has an upper end connected to the lower surface of the lower long cap member 154. The deflector plate 151 has a bottom end spaced upwardly from the bottom wall 132 of the box body 131. A space is defined between the bottom end of the baffle plate 151 and the bottom wall 132 to allow the heating liquid to pass through the space to the second end wall 137.

In Figure 22, the baffle plate 151 is fixedly attached to the lower long cap member 154 at a location closer to the first end wall 136 than to the second end wall 137. In Figure 23, the baffle plate 151 is fixedly attached attached to the lower long lid member 154 around the intermediate location of the box body 131. In Figure 24, the baffle plate 151 is fixedly attached to the lower long lid member 154 at a location closer to the second end wall 137 than the first end wall 136.

In Figures 22 to 24, the baffle plate 151 does not have a through hole. Therefore, the gap between the lower end of the baffle plate 151 and the bottom wall 132 allows the heating liquid to pass through the gap towards the second end wall 137. Since the gap is away from the surface of the liquid, The liquid surface is unlikely to be influenced by a change in the flow direction of the heating liquid, the change being accompanied by the passage of the heating liquid through the gap.

Instead of the baffle plate 151, a baffle plate 151a having a through hole can be adopted to increase the space that allows the heating liquid to pass towards the second end wall 137 (see Figure 25). The baffle plate 151a in Figure 25 is fixedly attached to the bottom surface of the lower long cap member 154 in the same position as the baffle plate 151 in Figure 22.

By adopting the baffle plate 151a, the baffle plate 151a can be connected to the bottom wall 132.

In the event that at least one of the vertically arranged and spaced cover members 154 is shorter than the entire length of the box body 131, the heating liquid having a horizontal flow advancing in a space between the cover members cap 154 is likely to cause the liquid surface of the heating liquid to rise. The heating liquid having horizontal flow subsequently advances while extending vertically after passing through the space or region defined between the arranged cap members 154. Since the cap members 154 are arranged near the surface of the liquid, it is likely The heating liquid having the flow extending vertically causes the surface of the liquid to rise.

A vertical cap or vertical caps 157 (see Figures 26 to 27) may be provided to prevent or suppress the occurrence of such vertically extending flow of heating liquid. The cap members 154 in Figure 26 have the same structure as the cap members in Figure 13. In Figure 26, the vertical cap 157 fixedly connects one end (closest to the second end wall 137) of the short upper lid member 154 and the upper surface of the long lower lid member 154 relative to each other at a location closer to the second end wall. In this way, the vertical lid 157 closes a space between the lid members 154. The lid members 154 in Figure 27 have the same structure as the lid members 154 in Figure 20. In Figure 27, one of the vertical caps 157 is fixedly attached to one of the ends (closer to the first end wall 136) of the cap members 154 and the other of the vertical caps 157 is attached to the other ends (closer to the second end wall 136). end 137) of the cap members 154. In this way, the vertical caps 157 close a space between the cap members 154. The cap members 154 in Figure 28 have the same structure as the cap members 154 in Figure 21. In Figure 28, the vertical cap 157 fixedly connects one of the ends (closest to the first end wall 136) of the cap members 154 with each other. In this way, the vertical lid 157 closes a space between the lid members 154.

The vertical lid 157 may fully or partially close the space, that is, horizontally open the space, between the lid members 154. The vertical lid 157 connecting the lid members 154 to each other may have a through hole to partially close the space. between the lid members 154. Alternatively, the upper or lower end of the vertical lid 157 that has the through hole or that does not have a through hole may be spaced from the bottom surface of the upper lid member 154 or from the top surface of the member of lower cap 154. Even the vertical cap 157 that partially closes the space between the cap members 154 can weaken the force of the horizontal flow of the liquid passing through the space between the cap members 154. In this configuration, the heating liquid that has passed through the space between the cap members 154 lead to a flow that extends vertically and has a reduced intensity. Consequently, the rise of the liquid surface is suppressed.

The configurations described with reference to the aforementioned embodiments are for illustrative purposes only and should not be interpreted in a limiting manner. Various modifications or improvements may additionally be applied to the configurations described with reference to the aforementioned embodiments.

In the above-mentioned embodiments, liquefied natural gas is exemplified as liquefied gas. However, the liquefied gas may be liquefied petroleum gas, liquid nitrogen or the like.

In the above-mentioned embodiments, seawater is exemplified as a heating liquid. However, another liquid that has a temperature higher than that of the liquefied gas can be used as a heating liquid.

The vertical arrangement of collector 122 can be modified for various designs. Other designs for the collector 122 are described with reference to Figure 1 and Figure 29. Figure 29 is a schematic cross-sectional view of the collector 122.

In the design shown in Figure 1, the inlet port 138 of the first end wall 136 is arranged in a different vertical position from that of the outlet port 125 of the collector 122. However, the relative positional relationship of the collector 122 to The plurality of buckets 130 may be determined such that the inlet port 138 of the first end wall 136 aligns substantially coaxially with the outlet port 125 of the manifold 122 (see Figure 29). In other words, the collector 122 can be arranged in a position higher than that shown in Figure 1 so that the vertical position of the collector 122 substantially coincides with the vertical position of the plurality of buckets 130. In this case, a tube of straight tube type supply 123 can be suitably used as a supply tube connected to the manifold, consequently forming a shorter flow path than the curved flow path.

In the above-mentioned embodiment, the flow of seawater into the plurality of buckets 130 is uniform by means of the closure member 140. A flow regulating device such as a valve or an orifice member may be mounted on the plurality of tubes. supply 123 to increase the regulation range for the flow of seawater in each of the plurality of buckets 130.

In the above-mentioned embodiment, the closure member 140 is formed by an orifice member. However, the closure member 140 may be formed by a porous plate 142 as shown in Figure 30.

In the above-mentioned embodiments, a plurality of deflector plates 151 are used as the lift suppression portion. However, a single baffle plate may be used as the lift suppression portion. The number of baffle plates provided that serve as the lift suppression portion can be determined based on the flow of seawater into the basin 130 and the dimension of the inlet port 138. An arrangement range between the plurality of baffle plates 151 and The height of the plurality of deflector plates 151 can be determined based on these design conditions.

In the embodiment described above, the deflector plate 151 is held substantially vertically in the box body 131. However, the vaporizer apparatus 100 may employ a deflector plate 151' held fixedly inclined in the box body 131 (see Figures 31). and 32). In Figures 31 and 32, the baffle plate 151' is fixedly mounted on the bottom wall 132. In Figure 31, the baffle plate 151' is tilted such that the upper end of the baffle plate 151' is closer to the second end wall 137 than the lower end on the lower wall 132. In contrast, in Figure 32, the baffle plate 151' is inclined such that the upper end of the baffle plate 151' is closer to the first end wall 136 than the lower end of the bottom wall 132. The baffle plate 151' can be separated from the bottom wall 132. In this case, the baffle plate 151' is fixedly attached to the side walls 134, 135.

In the case that the baffle plate 151' is inclined towards the second end wall 137 (Figure 31), the heating liquid that has collided with the baffle plate 151' is likely to flow diagonally upward. This configuration makes it possible to increase the amount of heating liquid overflowing from the box body 131 around the baffle plate 151'.

In the case that the baffle plate 151' is inclined towards the first end wall 136 (Figure 32), the heating liquid that has collided with the baffle plate 151' is likely to flow diagonally downward. In this case, the flow rate of the heating liquid is likely to increase around the bottom wall 132 of the box body 131. This results in a skewed distribution of the flow rate of the heating liquid in the depth direction of the box body 131. Consequently In this way, a surface ripple of the heating liquid is eliminated.

The obstructor may include a plurality of baffle plate pieces (obstructor pieces) 151" that are spaced apart (see Figure 33) at a specific interval between them. In Figure 33, corresponding assemblies of the baffle plate pieces 151" are provided in three locations in the first horizontal direction. Each assembly at each location has two baffle plate pieces 151'' aligned vertically and spaced apart at a specific interval between them. A portion of the heating liquid that has collided with the baffle plate pieces 151'' may flow downstream through a space between the baffle plate pieces 151''. The gap dimension is adjusted depending on the interval between the two vertically aligned baffle plate pieces 151”. Due to the adjustment of the interval between the plate pieces, it is possible to set the amount of heating liquid flowing past the baffle plate pieces 151" to an appropriate value taking into account the influence on the heating liquid by the baffle plate pieces 151”.

Second realization

Figure 34 is a schematic perspective view of a vaporizer apparatus 100' of an open grid type according to a second embodiment. Figure 35 is a schematic cross-sectional view of the vaporizer apparatus 100'. The vaporizer apparatus 100' will be described with reference to Figures 34 and 35.

The vaporizer apparatus 100' according to the second embodiment differs from the vaporizer apparatus 100 according to the first embodiment in the use of two supply tubes 123 and two supply tubes 123' which respectively serve as supply conduits for supplying the heating liquid. from the collector 122 to four buckets 130, the supply tubes 123, 123' having cross-sectional areas of the flow path that are different from each other. The supply tubes 123 are connected to the two corresponding outermost buckets 130 among the four buckets 130 aligned in the second horizontal direction and spaced apart. The supply tubes 123' used to supply the heating liquid to the remaining buckets 130 have a larger flow path cross-sectional area than the supply tubes 123.

Each of the two outermost troughs 130 is adjacent to one of the heat transfer panels 113. In contrast, each of the two remaining troughs 130 is adjacent to two of the heat transfer panels 113. Buckets 130 are required to supply the heating liquid to the two heat transfer panels 113, while it is sufficient for each of the two outermost buckets 130 to supply the heating liquid to one heat transfer panel 113. In other words, the two remaining buckets 130 are required to send the heating liquid at a greater flow rate than that sent from the two outermost buckets 130. Consequently, each of the two remaining buckets 130 requires a larger supply amount of heating liquid than the two outermost buckets 130.

In the embodiment, the supply tubes 123' having a larger flow path cross-sectional area than the supply tubes 123 can supply the two remaining buckets 130 with a larger supply amount of the heating liquid than the two further buckets 130. external 130. This configuration eliminates the need to connect any fluidic device, such as a flow regulating valve or orifice member, to regulate the flow to the supply tubes 123, 123' to achieve the magnitude relationship of the flows before mentioned.

The vaporizing apparatus described in connection with the various embodiments mainly has the following characteristics.

A vaporizing apparatus according to one aspect of the embodiment is configured to vaporize liquefied gas by heat exchange between the liquefied gas and the heating liquid having a higher temperature than the liquefied gas. The vaporization apparatus includes a heat transfer panel that includes a plurality of horizontally positioned and aligned heat transfer tubes to guide the liquefied gas; a bucket located at a position lower than an upper end of the heat transfer panel for supplying the heating liquid to an outer surface of each of the plurality of heat transfer tubes; and a manifold disposed on an end side of the bucket in an alignment direction of the plurality of heat transfer tubes for supplying the heating liquid to the bucket. The trough includes a bottom wall extending in the direction of alignment of the plurality of heat transfer tubes, a first end wall extending upwardly from one end of the bottom wall, one end being closer to the collector at the alignment direction, and a second end wall extending upward from the other end of the bottom wall, and away from the first end wall in the alignment direction. The first end wall has an inlet port to allow the heating liquid to flow.

In the above-mentioned configuration, the manifold for supplying the heating liquid into the tub is arranged on the first side of the end wall of the tub, and the first end wall has the inlet port. Therefore, the flow path of the heating liquid from the collector to the bucket is shortened. In other words, the flow path of the heating liquid from the collector to the bucket does not need to reach an inlet port formed in a bottom wall beyond the first end wall, unlike a structure in which the liquid Heater flows from a collector to a bucket through an inlet port formed in the bottom wall.

With the aforementioned configuration, the vaporizing apparatus may further include a rise suppression portion configured to suppress a liquid surface that rises from the heating liquid due to a collision of the heating liquid that has flowed into the bucket against the second end wall.

In the above-mentioned configuration, the heating liquid that has flowed through the inlet port flows toward the second end wall and impinges on the second end wall. A part of the heating liquid that has collided with the second end wall flows upward at a location closer to the second end wall and causes the liquid surface of the heating liquid to rise. In this case, the rise suppression portion suppresses rise of the liquid surface and therefore prevents excessive supply of the heating liquid to the outer surfaces of the heat transfer tubes closest to the second end wall. . Consequently, this configuration prevents the heat exchange from varying between the plurality of heat transfer tubes.

With the aforementioned configuration, the lift suppression portion may include a cap member that is located at a position higher than the inlet port between the first end wall and the second end wall and that extends into the bowl. in the alignment direction.

In the above-mentioned configuration, most of the heating liquid that has flowed into the bucket through the inlet port flows into a region below the cap member that is disposed at a position higher than the inlet port. After the heating liquid hits the second end wall, an upward flow of the heating liquid is generated. The surface rise of the heating liquid is suppressed by the cap member against which the upward-flowing heating liquid impinges.

With the above-mentioned configuration, the cap member may be at a location closer to the first end wall, a location closer to the second end wall, or a location intermediate between the first end wall and the second end wall. .

In the aforementioned configuration, the cap member suppresses a rising liquid surface near the inlet port when arranged at a location closer to the first end wall. The cap member suppresses liquid surface rise attributed to the collision of the heating liquid against the second wall when arranged at a location closer to the second end wall. The cap member prevents the liquid surface from rising at a location intermediate between the first end wall and the second end wall when arranged at the intermediate location.

With the aforementioned configuration, the cap member may include a plate that extends completely in the alignment direction from the first end wall to the second end wall, or a plurality of plates that are located between the first end wall and the second end wall and spaced apart from each other in the alignment direction.

In the aforementioned configuration, the cap member including the plate extending completely in the alignment direction from the first end wall to the second end wall suppresses a liquid surface that undulates or rises along the entire length. the length of the bucket. Alternatively, the cap member including the plurality of plates located between the first end wall and the second end wall and spaced apart from each other in the alignment direction suppresses a liquid surface that rises from the heating liquid in a wide range. of the bucket in the longitudinal direction thereof without any excessive increase in the weight of the bucket.

With the aforementioned configuration, the cap member may have a through hole that passes vertically through the cap member.

In the above-mentioned configuration, a portion of the upward-flowing heating liquid may flow into a space above the cap member through the through hole of the cap member. Resistance occurs in the heating liquid when the heating liquid passes through the through hole. As a result, the surface rise of the heating liquid at a location closer to the second end wall is suppressed.

With the aforementioned configuration, the lift suppression portion may include an obstructor provided between the first end wall and the second end wall. The obstructor may allow the heating liquid that has flowed into the bucket through the inlet port to collide against the obstructor prior to collision against the second end wall to thereby reduce a collision force of the heating liquid against the second end wall. .

In the above-mentioned configuration, the heating liquid that has entered through the inlet port collides with the obstructor before colliding with the second end wall. The obstructor reduces the flow rate of the heating liquid prior to collision with the second end wall. Consequently, when the heating liquid collides with the second end wall, a decreased collision force is generated, making it unlikely to cause a flow of heating liquid having greater upward velocity components. In other words, liquid surface rise is suppressed at a location closer to the second end wall.

With the configuration mentioned above, the obstructor can be upright or inclined with respect to the bottom wall of the bucket.

In the aforementioned configuration, when held vertically with respect to the bottom wall of the bucket, the obstructor effectively decreases the intensity of the heating liquid by allowing the heating liquid to collide with the obstructor. Alternatively, when kept inclined with respect to the bottom wall of the bucket, the stopper can decrease the intensity of the heating liquid and change the flow direction of the heating liquid.

With the configuration mentioned above, the stopper can be separated from the bottom wall of the bucket.

In the above-mentioned configuration, a portion of the heating liquid can flow downstream through a space between the stopper and the bottom wall of the bucket. Since the gap is away from the surface of the heating liquid, the surface of the liquid prevents it from rising excessively even due to the flow of the heating liquid passing through the gap. Furthermore, the heating liquid can flow towards the second end wall passing through the gap. Therefore, no excessive decrease in flow occurs at a location closer to the second end wall.

With the aforementioned configuration, the obstructor may include a plurality of obstructing pieces that are spaced apart.

In the above-mentioned configuration, the plug including the plurality of spaced-apart plug pieces may provide in the bucket a plurality of regions in which the heating liquid impinges on the plug pieces. As the interval between the obstructing pieces is smaller, the resistance in the heating liquid is greater. On the contrary, the greater the interval between the obstructing pieces, the lower the resistance in the heating liquid. This configuration allows the resistance in the heating liquid to be adjusted to a suitable value by adjusting the interval between the obstructing pieces.

With the configuration mentioned above, the plug may have a through hole that passes through the plug in the alignment direction.

In the above-mentioned configuration, the through hole passing through the stopper is formed in the alignment direction of the plurality of heat transfer tubes. Therefore, a part of the heating liquid that has flowed through the inlet port formed in the first end wall can flow from an upstream region to a downstream region of the plug through the through hole. Increased resistance in the heating liquid occurs when the heating liquid passes through the through hole, thereby reducing the flow pressure of the heating liquid from the first end wall to the second end wall. As a result, the surface rise of the heating liquid at a location closer to the second end wall is suppressed.

With the aforementioned configuration, the vaporizing apparatus may include a closure member provided on the bucket to close a portion of the inlet port. The closure member can be removed from the bucket.

In the above-mentioned configuration, the closure member may regulate an inlet of the heating liquid into the bucket by closing a portion of the inlet port and thus applying resistance to the heating liquid in the inlet port of the bucket. Furthermore, the closure element can be removed from the bucket. Accordingly, this configuration makes it possible to reduce the resistance in the heating liquid passing through the inlet port by removing the closure member.

With the aforementioned configuration, the vaporizer apparatus may include: another heat transfer panel that includes a plurality of heat transfer tubes and is disposed away from the heat transfer panel; another bucket for supplying the heating liquid to an outer surface of each of the plurality of heat transfer tubes of the other heat transfer panel; and a plurality of supply tubes respectively connected to the bucket and the other bucket for supplying the heating liquid from the collector to the bucket and the other bucket. One of the heat transfer panel and the other heat transfer panel is adapted for heat exchange between the liquefied gas and the heating liquid which has a flow rate smaller than the flow rate of the heating liquid of the other heat transfer panel and the another heat transfer panel. The supply tube connected to the bucket of one heat transfer panel has a smaller flow path cross-sectional area than the supply tube connected to the bucket of the other heat transfer panel.

In the aforementioned configuration, the buckets receive the heating liquid through the plurality of supply tubes connected to the collector. Therefore, the supply quantities of the heating liquid to the cuvettes differ from each other depending on the cross-sectional area of the flow path of the corresponding supply pipe. The supply tube connected to the bucket configured to supply the heating liquid to the heat transfer panel, which requires the heating liquid to have a relatively small flow rate for heat exchange between the heating liquid and the liquefied gas, has an area of relatively small flow path cross section. In this way, the supply tube avoids supplying too much heating liquid to the bucket.

With the aforementioned configuration, the vaporizer apparatus may further include: at least two heat transfer panels including the heat transfer panel, and arranged away from each other; three buckets including bucket; and a plurality of supply tubes respectively connected to the three buckets for supplying the heating liquid from the manifold to the three buckets. Two cuvettes specified among the at least three cuvettes are located in the outermost positions of a row of at least two heat transfer panels such that each of the two cuvettes specified in the outermost positions is adjacent to one of the At least two heat transfer panels, a remaining bucket is placed between the heat transfer panels adjacent to each other. A pair of supply tubes connected to the two specified buckets have a smaller flow path cross-sectional area than the supply tube connected to the remaining bucket.

In the aforementioned configuration, each of the two outermost buckets is adjacent to one of the heat transfer panels, and the remaining bucket is adjacent to two of the heat transfer panels. In this configuration, the two outermost basins allow the heating liquid to flow down to the heat transfer panel. On the contrary, the remaining bucket allows the heating liquid to flow to the two heat transfer panels. Since the supply pipes connected with the two outermost buckets have a smaller flow path cross-sectional area than the supply pipe for the remaining bucket, the supply amount of the heating liquid to the two outermost buckets is relatively small. Furthermore, the buckets receive the heating liquid through the plurality of supply tubes connected to the collector. The supply quantities of the heating liquid to the cuvettes differ from each other depending on the cross-sectional area of the flow path of the corresponding supply pipe. In this way, a suitable flow rate can be obtained for the number of heat transfer panels to which the heating liquid is supplied. This configuration eliminates the need to connect any fluidic device, such as a valve, to reduce the amount of heating liquid delivery to the supply tubes for the two outermost buckets.

With the aforementioned configuration, the vaporizer apparatus may further include another cap member that is located in a position vertically away from the cap member.

In the above-mentioned configuration, even an intensive upward flow of the heating liquid decreases due to sequential collisions of the heating liquid having the upward flow against the lid member and the other lid member. In this way, a rise in the surface of the heating liquid is eliminated.

With the above-mentioned configuration, at least one of the lid member and the other lid member can fully extend into the bucket.

In the above-mentioned configuration, a rippling or rising liquid surface of the heating liquid along the entire length of the cuvette is eliminated.

With the aforementioned configuration, the vaporizing apparatus may further include a vertical lid disposed between the lid member and the other lid member.

In the above-mentioned configuration, a part of the heating liquid that has collided with the upper cap member, which is the cap member or another cap member, flows into the space between the cap members. However, the heating liquid flowing in the space between the cap members receives resistance from the vertical cap disposed between the cap members. Consequently, the heating liquid has a reduced intensity.

With the aforementioned configuration, the lift suppression portion may include an obstructor between the first end wall and the second end wall. The obstructor may be in contact with a bottom surface of the cap member. The obstructor may suppress a collision force of the heating liquid against the second end wall by allowing the heating liquid that has flowed into the bucket through the inlet port to collide against the obstructor prior to collision against the second wall. The plug may have a through hole passing through it in the direction of alignment.

In the aforementioned configuration, the obstructor can be attached to the cap member through contact with the bottom surface of the cap member. The stopper having the through hole allows the heating liquid to flow to the second end wall through the through hole. This configuration thus prevents an excessive lowering of the surface level of the heating liquid at a location closer to the second end wall.

Industrial applicability

The techniques described in connection with the embodiments are preferably used in various technical fields where a change in form from a liquefied gas to a vaporized gas is required.

Claims (18)

1. A vaporizing apparatus (100) for vaporizing a liquefied gas through a heat exchange between the liquefied gas and the heating liquid having a higher temperature than the liquefied gas, the vaporizing apparatus (100) comprises: a heat transfer panel heat (113) including a plurality of heat transfer tubes (116) positioned and aligned horizontally to guide the liquefied gas; a bucket (130) located at a position lower than an upper end of the heat transfer panel (113) for supplying the heating liquid to an outer surface of each of the plurality of heat transfer tubes (116); and a manifold (122) arranged on an end side of the bucket (130) in an alignment direction of the plurality of heat transfer tubes (116) to supply the heating liquid to the bucket (130), wherein the bucket (130) includes a bottom wall (132) extending in the direction of alignment of the plurality of heat transfer tubes (116), a first end wall (136) extending upwardly from one end of the bottom wall (132), one end being closer to the collector (122) in the alignment direction, and a second end wall (137) extending upward from the other end of the bottom wall (132), and away from the first end wall (136) in the alignment direction, characterized because The first end wall (136) of the bucket (132) has an inlet port (138) to allow the heating liquid to flow. 2. The vaporizer apparatus (100) according to claim 1, further comprising a rise suppression portion (151, 152, 153, 154) configured to suppress rise of a liquid surface of the heating liquid due to a collision of the heating liquid that has flowed in the bucket (130) against the second end wall ( 137). 3. The vaporizer apparatus (100) according to claim 2, wherein The rise suppression portion includes a cap member (154) that is located in a position higher than the inlet port (138) between the first end wall (136) and the second end wall (137) and is extends into the bucket (130) in the alignment direction. 4. The vaporizer apparatus (100) according to claim 3, wherein the cap member (154) is located at a location closer to the first end wall (136), a location closer to the second wall of end (137), or an intermediate location between the first end wall (136) and the second end wall (137). 5. The vaporizer apparatus (100) according to claim 3, wherein The cap member (154) includes a plate that extends completely in the direction of alignment from the first end wall (136) to the second end wall (137), or a plurality of plates located between the first end wall (136) and the second end wall (137) and spaced apart from each other in the alignment direction. 6. The vaporizer apparatus (100) according to any of claims 3 to 5, wherein The cap member (154) has a through hole that passes vertically through the cap member (154). 7. The vaporizer apparatus (100) according to claim 2, wherein The lift suppression portion includes a stopper (151, 152, 153) provided between the first end wall (136) and the second end wall (137) so that the heating liquid that has flowed into the bucket (130) through the inlet port (138) collides with the obstructor (151, 152, 153) before collision against the second end wall (137) to thereby reduce a collision force of the heating liquid against the second end wall (137). 137). 8. The vaporizer apparatus (100) according to claim 7, wherein The obstructor (151, 151') is upright or inclined with respect to the lower wall (132) of the bucket (130). 9. The vaporizer apparatus (100) according to claim 7, wherein The obstructor (151) is separated from the bottom wall (132) of the bucket (130). 10. The vaporizer apparatus (100) according to claim 7, wherein The obstructor includes a plurality of obstructing pieces (151”) separating from each other. 11. The vaporizer apparatus (100) according to any of claims 7 to 10, wherein The plug (152) has a through hole that passes through the plug (152) in the alignment direction. 12. The vaporizer apparatus (100) according to any one of claims 1 to 5, 7 and 10, further comprising: a closure member (140) provided on the bucket (130) for closing a portion of the inlet port (138), the closure member (140) being removable from the bucket (130). 13. The vaporizer apparatus (100) according to any of claims 1 to 5, 7 and 10, further comprising: another heat transfer panel (113) that includes a plurality of heat transfer tubes (116) and is disposed away from the heat transfer panel (113); another bucket (130) for supplying the heating liquid to an outer surface of each of the plurality of heat transfer tubes (116) of the other heat transfer panel (113); and a plurality of supply tubes (123, 123') respectively connected to the bucket (130) and the other bucket (123) to supply the heating liquid from the collector (122) to the bucket (130) and the other bucket (130 ), wherein one of the heat transfer panel (113) and the other heat transfer panel (113) is adapted for heat exchange between the liquefied gas and the heating liquid having a flow rate less than the flow rate of the liquid heater of the other heat transfer panel (113) and the other heat transfer panel (113), and the supply tube (123) connected to the bucket (130) of the heat transfer panel (113) has an area of flow path cross section smaller than the supply tube (123') connected to the bucket (130) of the other heat transfer panel (113). 14. The vaporizer apparatus (100) according to any one of claims 1 to 5 and 7 to 10, further comprising: at least two heat transfer panels (113) including the heat transfer panel (113), and arranged away from each other; three buckets (130) including the bucket (130); and a plurality of supply tubes (123, 123') respectively connected to the three buckets (130) to supply the heating liquid from the collector (122) to the three buckets (130), where Two buckets (130) are specified among at least three buckets (130) that are located in the outermost positions of a row of at least two heat transfer panels (113) such that each of the two buckets (130) ) specified in the outermost positions is adjacent to one of the at least two heat transfer panels (113), A remaining channel (130) is placed between the heat transfer panels (113) adjacent to each other, and a pair of supply tubes (123) connected to the two specified buckets (130) have a path cross-sectional area of flow smaller than the supply tube (123; 123') connected to the remaining bucket (130). 15. The vaporizer apparatus (100) according to any one of claims 3 to 5, further comprising another lid member (154) that is located in a position vertically remote from the lid member (154). 16. The vaporizer apparatus (100) according to claim 15, wherein at least one of the lid member (154) and the other lid member (154) extends completely into the bucket (130). 17. The vaporizer apparatus (100) according to claim 15, further comprising a vertical cap (157) disposed between the cap member (154) and the other cap member (154). 18. The vaporizer apparatus (100) according to claim 15, wherein The rise suppression portion includes an obstructor (151a) between the first end wall (136) and the second end wall (137), the obstructor (151) is in contact with a lower surface of the cap member (154), suppressing a collision force of the heating liquid against the second end wall (137) allowing the heating liquid that has flowed into the bucket (130) through the inlet port (138) to collide against the obstructor (151a) before the collision against the second wall (137), and which has a through hole that passes through the obstructor (151a) in the alignment direction.