RU2472088C2 - Methods of making plates of synthetic gas cooler and synthetic gas cooler plates - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: proposed method comprises stages whereat tubular case is arranged inside synthetic gas cooler to connect set of plates to said case to facilitate steam generation in synthetic gas cooler. At least one first plate with, at least, one length larger than that of second length. Said plate features nonlinear geometry and is inclined to synthetic gas cooler wall. Invention covers also the design of synthetic gas cooler and that of multiple plates therein.

EFFECT: perfected method.

20 cl, 13 dwg

Description

State of the art

The present invention generally relates to gas generation systems and, more particularly, to methods and systems for the manufacture of synthesis gas cooler plates.

At least some known gas generation systems convert a mixture of fuel, air or oxygen, steam and / or limestone into a product that is a partially burnt gas, sometimes called “synthetic gas” (“syngas”). Hot combustible gases are supplied to the combustion chamber of a gas turbine engine, which drives a generator used to supply electrical energy to the electrical network. The exhaust from at least some of the known gas turbine engines is supplied to a heat recovery steam generator that generates steam to drive the steam turbine. The energy generated by a steam turbine can also be used to drive an electric generator that provides electrical power to the electrical network.

Moreover, some known gas generation systems regenerate heat from synthesis gas to generate additional steam to drive a steam turbine. Typically, steam is produced by passing syngas through syngas cooler plates. Stoves are a group of boiler evaporator tubes that create steam as heat is transferred from the syngas to the boiler feed water flowing inside the boiler evaporator tubes. However, some known plate designs can only provide limited radiant and convective heat dissipation, since solids in the synthesis gas are deposited on the surface of the plates. Accordingly, heat transfer from synthesis gas to boiler feed water can be reduced, and therefore, steam production can be limited. One known method for preventing excessive deposition of solids in synthetic gas involves orienting the pipe tubes vertically and arranging the pipes at a distance from the midline of the synthetic gas stream. However, such designs often have an excessively high cost and increase the size and / or weight of the syngas cooler.

Disclosure of invention

According to one aspect of the invention, a method for manufacturing a synthesis gas cooler is provided. The method includes the steps of attaching a tubular casing inside the syngas cooler and attaching a plurality of plates to the tubing casing to facilitate the production of steam in the syngas cooler. At least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and an angular position that is inclined relative to the wall of the synthetic gas cooler.

According to another aspect of the invention, a synthetic gas cooler is provided. The syngas cooler comprises a tubular casing and a plurality of plates attached to the tubular casing to facilitate the production of steam in the syngas cooler. At least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and an angular position that is inclined relative to the wall of the synthetic gas cooler.

According to another aspect of the invention, a plurality of plates are provided. The plates are configured to attach to the pipe casing of the syngas cooler to facilitate the production of steam in the syngas cooler. At least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and an angular position that is inclined relative to the wall of the synthetic gas cooler.

Brief Description of the Drawings

Figure 1 is a schematic view of an illustrative combined gasification combined cycle (IGCC) system;

FIG. 2 is a schematic cross-sectional view of an exemplary syngas cooler that can be used with the system shown in FIG. 1;

FIG. 3 is an illustrative embodiment of a plurality of stoves that can be used with the syngas cooler shown in FIG. 2;

FIG. 4 is an alternative embodiment of a plurality of plates shown in FIG. 3;

FIG. 5 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in FIG. 2;

FIG. 6 is a further alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in FIG. 2;

FIG. 7 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in FIG. 2;

Fig. 8 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in Fig. 2;

Fig. 9 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in Fig. 2;

FIG. 10 is a further alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in FIG. 2;

11 is a top view of a plurality of plates shown in FIG. 10;

Fig. 12 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in Fig. 2; and

FIG. 13 is another alternative embodiment of a plurality of cookers that can be used with the syngas cooler shown in FIG.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides a plurality of plates for use in a synthesis gas cooler, wherein at least one plate has a length greater than the length of the second plate, has a non-linear geometry and / or is attached to the pipe shell of the synthesis gas cooler at an oblique angle to the wall of the cooler synthetic gas. Namely, the present invention provides various configurations in which the known geometric shape of the plates varies from a uniformly straight, radially arranged structure to another geometric configuration in which different quantities, angles and / or lengths of plates are used. The various stove designs described here contribute to improving the radiant and convective heat dissipation between the synthesis gas and boiler feed water inside the stove tubes. Moreover, such plate configurations contribute to the design of more compact and / or cost-effective synthesis gas coolers.

It should be noted that, although the present invention has been described with respect to stoves that can be used in a synthetic gas cooler, one skilled in the art will understand that the present invention is not limited to the use of synthetic gas coolers only. The present invention can be used in any system that uses heat transfer. Moreover, for simplicity, the present invention is described here only in relation to the production of steam as a by-product of the production of synthetic gas. However, as one skilled in the art will understand, the present invention is not limited to steam production and can be used to produce any heat transfer by-product.

Figure 1 is a schematic diagram of an illustrative combined gasification combined cycle (IGCC) power generation system 10. The IGCC system 10 generally includes a main air compressor 12, an air separation unit (ASU) 14, which is capable of transmitting a stream to a compressor 12, a gasifier 16, which is capable of transmitting a stream to an ASU 14, a synthesis gas cooler 18, which is removably connected flow to the blowing agent 16, a gas turbine engine 20 connected to transmit the flow to the synthetic gas cooler 18, and a steam turbine 22, connected to the flow to the gas cooler 18 eticheskogo gas.

During operation, the compressor 12 compresses the ambient air, which is then transferred to the ASU 14. In the illustrative embodiment, in addition to the compressed air from the compressor 12, the compressed air from the compressor 24 of the gas turbine engine is supplied to the ASU 14. Alternatively, the compressed air from the compressor 24 of the gas turbine engine is supplied to ASU 14 rather than compressed air from compressor 12 supplied to ASU 14. In an illustrative embodiment, ASU 14 uses compressed air to generate oxygen to use gas azovatelem 16. More specifically, ASU 14 separates the compressed air into separate flows of oxygen (O ₂₎ and gaseous by-product, sometimes referred to as "process gas". The O ₂ stream is transferred to a gas generator 16 for use in the production of partially burnt gases, referred to herein as “synthetic gas” (“syngas”), for use by the gas turbine engine 20 as fuel, as described in more detail below.

The process gas generated by ASU 14 includes nitrogen and will be referred to as “nitrogen process gas” (NPG). NPG may also include, but is not limited to, other gases, such as oxygen and / or argon. For example, in an exemplary embodiment, the NPG includes from about 95% to about 100% nitrogen. In an illustrative embodiment, at least a portion of the NPG stream is vented to the atmosphere from the ASU 14, and a portion of the NPG stream is injected into the combustion zone (not shown) inside the combustion chamber 26 of the gas turbine engine to help control emissions of the engine 20 and, more specifically, to help reduce combustion temperature and reduce nitrous oxide emissions from engine 20. In an illustrative embodiment, the IGCC system 10 includes a compressor 28 for compressing a stream of nitrogen process gas prior to injection into zones combustion chamber 26 of the combustion turbine engine.

In an illustrative embodiment, the gasifier 16 converts the mixture of fuel supplied from the fuel supply 30, O ₂ supplied by the ASU 14, steam and / or limestone into a synthetic gas product for use by the gas turbine engine 20 as fuel. Although gasifier 16 can use any fuel, gasifier 16 in the illustrative embodiment uses coal, petroleum coke, residual oil, oil emulsions, bitumen sands and / or other similar fuels. Moreover, in an illustrative embodiment, the synthesis gas generated by the blowing agent 16 includes carbon dioxide.

In an illustrative embodiment, the synthesis gas generated by the blowing agent 16 is transferred to the synthesis gas cooler 18 to facilitate cooling of the synthesis gas, as described in more detail below. The cooled synthesis gas is transferred from the cooler 18 to the treatment unit 32 for cleaning the synthesis gas before it is transferred to the combustion chamber 26 of the gas turbine engine for combustion. Carbon dioxide (CO ₂ ) can be separated from the synthesis gas during purification and, in the illustrative embodiment, can be released into the atmosphere. The gas turbine engine 20 drives a generator 34, which supplies electricity to an electrical network (not shown). The exhaust gases from the gas turbine engine 20 are transferred to a heat recovery steam generator 36, which generates steam to drive the steam turbine 22. The energy generated by the steam turbine 22 drives the generator 38, which provides electrical power to the electrical network. In an exemplary embodiment, steam from a heat recovery steam generator 36 is supplied to a gasifier 16 to generate synthetic gas.

Moreover, in an illustrative embodiment, system 10 includes a pump 40 that delivers boiled water from a steam generator 36 to a synthesis gas cooler 18 to facilitate cooling of the synthetic gas transmitted from the blower 16. The boiled water is transferred through a synthesis gas cooler 18, and water is converted in par. The steam from the cooler 18 is then returned to the steam generator 36 for use in the gasifier 16, the synthetic gas cooler 18 and / or the steam turbine 22.

FIG. 2 shows a schematic cross-sectional view of an exemplary syngas cooler 100 that can be used with system 10. In an exemplary embodiment, the syngas cooler 100 is a radiant syngas cooler. The syngas cooler 100 includes a pressure vessel shell 102 having an upper opening (not shown) and a lower opening (not shown) that are substantially concentrically aligned with each other along the middle line 104 of the cooler. The “axial” direction referred to herein is a direction substantially parallel to the center line 104, the “up” direction is a direction substantially toward the upper opening of the shell and the “down” direction is substantially directed toward the lower opening of the shell. The syngas cooler 100 has a radius R, measured from the midline 104 to the outer surface 106 of the shell 102. Moreover, in an illustrative embodiment, the upper part (not shown) of the cooler 100 includes many holes (not shown) for downpipes and many holes (not shown) for riser pipes that describe the top opening. In an illustrative embodiment, the sheath 102 is made of, but not limited to, steel for pressure vessels, such as chromium-molybdenum steel. Shell 102 is capable of withstanding the operating pressures of syngas passing through syngas cooler 100. Moreover, in an illustrative embodiment, the upper opening of the shell is connected with the possibility of transmitting a stream with a gas blower 16 to produce synthetic gas discharged from the gas blower 16. The lower opening of the shell 102 in the illustrative embodiment is connected with a possibility of transferring a stream to a slag collecting device (not shown) for ensuring the collection of solid particles formed during gas formation and / or cooling.

Inside the shell 102, in the illustrative embodiment, there are a plurality of heat transfer medium supply pipes 108 (also referred to as “downpipes”), a heat transfer wall 110 (also called a “tubular wall” here), and a plurality of heat transfer panels 112 (also called “plates” here). More specifically, in an illustrative embodiment, the downpipes 108 are located radially inside the downpipes 102, the tubular wall 110 is located radially inside the downpipes 108 and the plates 112 are located inside the tubular wall 110 so that the tubular wall 110 essentially describes the plates 112. In general, in the exemplary embodiment, downcomers 108 are located at a radius R ₁ from the outside of the middle line 104 and tubular wall 110 located at a radius R ₂ from the centerline 104, wherein the radius R ₁ is longer than the radius R _2, and radius R is longer than rad mustache R ₁ and R _2. Alternatively, the sheath 102, downpipes 108, tubular wall 110 and / or plates 112 are arranged in different orientations.

In an illustrative embodiment, downpipes 108 supply heat transfer medium 114, such as, for example, water from a steam generator 36, to a syngas cooler 100, as described herein. More specifically, downpipes 108 supply heat transfer medium 114 to tubular wall 110 and plates 112 through lower manifold 200, as described in more detail below. The lower manifold 200 in the illustrative embodiment is connected near the lower cooler opening and substantially downstream of the upper cooler opening through which the syngas enters the cooler 100. In the illustrative embodiment, downpipes 108 include pipes 116 made of material that allows cooler 100 and / or system 10 to operate as described herein. Moreover, in an illustrative embodiment, the gap 118 formed between the shell 102 and the tubular wall 110 may be under pressure to help reduce stresses applied to the tubular wall 110.

In an illustrative embodiment, the tubular wall 110 includes a plurality of circumferentially spaced, axially aligned pipes 120 connected to a membrane (also referred to herein as a “baffle” (not shown)). Although in the illustrative embodiment, the tubular wall 110 includes only one row of pipes 120, in other embodiments, the tubular wall 110 may include more than one row of pipes 120. More specifically, in the illustrative embodiment, the membrane and pipes 120 are connected together so that the tubular wall 110 is substantially impervious to synthesis gas. As such, the tubular wall 110 essentially retains the synthesis gas in the interior 122 of the cooler 100, which is effectively isolated from the downpipes 108 and / or the shell 102. As such, the tubular wall 110 forms a barrier through which the synthesis gas can pass. In an exemplary embodiment, heat is transferred from the syngas held inside the tubular wall 110 to the heat transfer medium 114 passing through the pipes 120. The pipes 120 and / or the membrane are made of a material having heat transfer properties that allow the cooler 100 to work as described herein. Moreover, in the illustrative embodiment, the tubular wall 110 is connected to the riser pipes passing through the upper part of the shell 102 (not shown) so that the heated heat transfer medium 114 can be transferred from the cooler, for example, to a heat recovery steam generator 36 (shown in FIG. one).

In an illustrative embodiment, each of the plates 112 includes a plurality of pipes 124 connected to the membrane 126. Each plate 112 may include any number of pipes 124 that allows the cooler 100 to operate as described herein. Although the plates 112 are shown in FIG. 2 oriented substantially radially with the axially aligned pipes 124, the plates 112 and / or pipes 124 may be oriented and / or configured in any appropriate orientation and / or a configuration that allows cooler 100 to operate as described herein. Moreover, in the illustrative embodiment, the plates 112 are attached to the pipe casing 127. In the illustrative embodiment, the pipe casing 127 includes a lower inlet pipe 128 and an upper output pipe (not shown). Plates 112 are attached to the lower inlet pipe 128 and to the upper outlet pipe (not shown). More specifically, in an illustrative embodiment, the plates 112 extend substantially in a perpendicular group between the lower inlet pipe 128 and the upper outlet pipe. Alternatively, the plates 112 may be oriented at any angle with respect to the pipe 128 and / or may be located in a different group from the lower inlet pipe 128.

FIG. 3 shows an illustrative embodiment of a plurality of stoves 200 that can be used with a synthetic gas cooler 100. 4 shows an alternative embodiment of plates 200. In illustrative embodiments, plates 200 include a first plurality of plates 202, each of which has a first length L ₁ , and a second plurality of plates 204, each of which has a second length L ₂ , which is greater than the first length L ₁ . The plates 200 are arranged in a circle around the midline 104 of the syngas cooler. Specifically, although only semicircular arrangements of the plates 200 are shown in FIGS. 3 and 4, as one skilled in the art will recognize, in one embodiment, the plates 200 essentially describe the center line 104. In an alternative embodiment of the plate 200 extend over any corresponding arcuate distance around the midline 104.

In the embodiment shown in FIG. 3, one plate 202 is located on the circumference between each pair of adjacent plates 204. In the embodiment shown in FIG. 4, a pair of plates 202 is located on the circumference between each pair of adjacent plates 204. In an alternative embodiment any number of plates 202 can be located on the circumference between each pair of adjacent plates 204. In yet another embodiment, any number of plates 204 can be located on the circumference between each pair of adjacent plates 202. Moreover, in illustrative embodiments In the implementation, each plate 200 extends substantially radially inward from the wall or shell (shown in FIG. 2) of the syngas cooler 100 to the midline 104. In an alternative embodiment, the plates 200 extend at any corresponding oblique angle from the wall of the cooler 100 synthetic gas. Moreover, the plates 200 are adapted to be attached to the pipe casing (shown in FIG. 2) and extend substantially vertically through the synthetic gas cooler 100. Moreover, the configuration of the slabs 200 having alternating lengths L ₁ and L ₂ helps to reduce the overall size of the slabs 200 to smaller than the size of the known slabs, and also increases the openness of the slabs 200 in the duct of the synthetic gas cooler 100 in comparison with the known synthetic gas cooler plates .

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas flows along the stoves 200 to facilitate heating of the boiler feed water flowing through the stoves 200 to produce steam. By its nature, the syngas flowing through the syngas cooler 100 is optically dense and has solid particles that restrict radiant heat transfer to the plates 200 due to limited visual pathways. Moreover, particulate matter in a syngas pair may have a tendency to deposit on plates 200, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the plates 200 in the synthetic gas stream help to reduce the deposition of solid particles from the synthetic gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 200 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increasing production costs, which depend on the size of the synthetic gas cooler 100.

FIG. 5 shows another embodiment of a plurality of stoves 250 that can be used with a synthetic gas cooler 100. In an exemplary embodiment, the plates 250 include a first plurality of plates 252 and a second plurality of plates 254. In an illustrative embodiment, the plates 252 are substantially linear; however, as one skilled in the art will understand, in an alternative embodiment, the plates 252 are non-linear. Moreover, in the illustrative embodiment, the slabs 254 are substantially arcuate; however, as one skilled in the art will understand, in an alternative embodiment, the boards 254 are substantially linear and / or have a different non-linear shape.

The plates 250 are arranged in a circle around the midline 104. Although only a semicircle of the plates 250 is shown in FIG. 5, as one skilled in the art will recognize, in one embodiment, the plates 250 are located completely around the midline 104. In an alternative embodiment the plates 250 are located at any arcuate distance around the midline 104, which allows the synthetic gas cooler 100 to operate as described herein. Moreover, in the illustrative embodiment, the plates 252 extend substantially radially inward from the wall or shell (shown in FIG. 2) of the synthetic gas cooler 100 to the midline 104. In an alternative embodiment, the plates 252 extend at an oblique angle from the wall synthetic gas cooler 100. Plates 254 extend substantially circumferentially around a midline 104 along the inner perimeter of the wall of the syngas cooler. The plates 254 also extend outwardly at an angle from the plates 252. More specifically, in the illustrative embodiment, each plate 254 extends a distance D ₁ from the plate 252, which allows each plate 254 to partially overlap an adjacent plate 252 and an adjacent plate 254. In an alternative embodiment of the plate 254 do not overlap adjacent slabs 252 and / or 254. In yet another embodiment, slabs 254 partially overlap adjacent slab 252 but do not overlap adjacent slab 254. In a further embodiment, slabs 254 overlap any number o adjacent plates 252 and / or 254, which allows the synthetic gas cooler 100 to operate as described herein.

Moreover, the plates 250 are configured to be attached to the pipe jacket (shown in FIG. 2) and extend substantially vertically through the syngas cooler 100. Moreover, the L-shaped configuration of the plates 250 helps to reduce the overall size of the plates 250 compared to the size of the known plates, and also increases the openness of the plates 250 to the duct of the synthetic gas cooler 100 in comparison with the known synthetic gas cooler plates.

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas passes along the stoves 250 to facilitate heating of the boiler feed water passing through the stoves 250 to produce steam. By nature, the syngas passing through the syngas cooler 100 is optically dense and has solid particles that limit radiant heat transfer to the plates 250 due to limited visual pathways. Moreover, particulate matter in a syngas pair may have a tendency to deposit on plates 250, thereby reducing heat transfer. However, in the exemplary embodiment, the vertical orientation and increased openness of the plates 250 in the syngas duct help to reduce the deposition of particulate matter from the syngas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 250 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increasing production costs, which depend on the size of the synthetic gas cooler 100.

FIG. 6 shows an additional embodiment of a plurality of stoves 300 that can be used with a synthetic gas cooler 100. In an illustrative embodiment, the slabs 300 are substantially arcuate. Moreover, the plates 300 are arranged in a circle around the midline 104. More specifically, although only a semicircle of the plates 300 is shown in FIG. 6, as one skilled in the art will recognize, in one embodiment, the plates 300 are located completely around the midline 104. In an alternative embodiment, the plates 300 are located at any appropriate distance around the center line 104, which allows the syngas cooler 100 to operate as described herein. Moreover, in the illustrative embodiment, the plates 300 extend substantially radially inward from the wall or shell (shown in FIG. 2) of the synthetic gas cooler 100 to the midline 104. In an alternative embodiment, the plates 300 extend at an oblique angle from the wall synthetic gas cooler. In one embodiment, the plates 300 have different lengths. More specifically, the slabs 300 include a first plurality of slabs 302 that have a first length L ₃ and a second plurality of slabs 304 that have a first length L ₄ that is greater than the first length L ₃ . In another embodiment, all plates 300 have the same length.

Moreover, the plates 300 are adapted to be attached to the pipe jacket (shown in FIG. 2) and extend substantially vertically through the syngas cooler 100. Moreover, the arcuate configuration of the plates 300 helps to reduce the overall size of the plates 300 to a smaller size than the known plates, and also increases the openness of the plates 300 to the duct of the syngas cooler 100 in comparison with the known syngas cooler plates.

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas flows along the stoves 300 to facilitate heating of the boiler feed water passing through the stoves 300 to produce steam. By its nature, the synthesis gas passing through the synthesis gas cooler 100 is optically dense and has solid particles that limit radiant heat transfer to the plates 300 due to limited visual pathways. Moreover, particulate matter in a syngas pair may have a tendency to deposit on plates 300, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the plates 300 to the synthetic gas duct help to reduce the deposition of particulate matter from the synthetic gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 300 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increasing production costs, which depend on the size of the synthetic gas cooler 100.

7 shows yet another embodiment of a plurality of stoves 350 that can be used with a synthetic gas cooler 100. In an illustrative embodiment, the plates 350 are substantially linear and have the same length L ₅ . In an alternative embodiment, the slabs 350 are substantially non-linear. In yet another embodiment, the plates 350 have different lengths. The plates 350 are arranged in a circle around the midline 104. More specifically, although only a semicircle of the plates 350 is shown in FIG. 7, as one skilled in the art will recognize, in one embodiment, the plates 350 are located completely around the midline 104. B in an alternative embodiment, the plates 350 are located at any appropriate distance around the center line 104, which allows the syngas cooler 100 to operate as described herein. Moreover, in an illustrative embodiment, the plates 350 extend substantially at an oblique angle from the wall or shell (shown in FIG. 2) of the syngas cooler 100 to the midline 104.

Moreover, the plates 350 are adapted to be attached to the pipe casing (shown in FIG. 2) and extend substantially vertically through the syngas cooler 100. Moreover, the configuration of the plates 350, extending at an oblique angle with respect to the wall of the synthetic gas cooler, reduces the overall size of the plates 350 to smaller than the size of the known plates, and also increases the openness of the plates 350 to the duct of the synthetic gas cooler 100 compared to the known synthetic gas cooler plates .

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas flows along the stoves 350 to facilitate heating the boiler feed water through the stoves 350 to produce steam. By nature, the syngas passing through the syngas cooler 100 is optically dense and has solid particles that limit radiant heat transfer to the plates 350 due to the limited light paths. Moreover, particulate matter in a syngas vapor may have a tendency to deposit on slabs 350, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the slabs 350 to the synthesis gas duct help to reduce the deposition of particulate matter from the synthesis gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the slabs 350 helps to reduce the total length and / or diameter of the syngas cooler 100 without adversely affecting the production of steam and / or increase production costs, which depend on the size of the syngas cooler 100.

FIG. 8 shows an alternative embodiment of a plurality of stoves 400 that can be used with a syngas cooler 100. Plates 400 include a first plurality of slabs 402 and a second plurality of slabs 404. Plates 400 are arranged circumferentially around a center line 104. More specifically, although only a semicircle of slabs 400 is shown in FIG. 8, one skilled in the art will recognize. , in one embodiment, the plates 400 are located completely around the center line 104. In an alternative embodiment, the plates 400 are located at any distance around the center line 104, which allows the plates 400 to operate as described herein. In an illustrative embodiment, the plates 404 are located radially inward from the plates 402. More specifically, the plates 402 extend radially inward from the wall or shell (shown in FIG. 2) of the synthetic gas cooler 100 to the midline 104, and the plates 404 extend inward from the plates 402 to the midline 104. In an alternative embodiment, the slabs 402 extend at an oblique angle from the wall of the syngas cooler. Moreover, in the illustrative embodiment, the plates 404 extend obliquely from the plates 402. More specifically, the first plate 406 extends obliquely from each plate 402 in the first direction, and the second plate 408 extends obliquely from each plate 402 so that one plate 402 and a pair of plates 404 form a Y-shape in a plane perpendicular to the centerline 104.

In an illustrative embodiment, the plates 400 are substantially linear, however, as one skilled in the art will recognize, in an alternative embodiment, the plates 400 are non-linear. Moreover, in the illustrative embodiment, the plates 402 have a length L ₆ , and the plates 404 have a length L ₇ that is greater than the length L ₆ . In an alternative embodiment, the length L ₆ is greater than the length L ₇ . In another embodiment, the length L ₆ is substantially the same as the length L ₇ . In a further embodiment, plates 402 have different lengths and / or plates 404 have different lengths.

Moreover, the plates 400 are adapted to be attached to the pipe jacket (shown in FIG. 2) and extend substantially vertically through the syngas cooler 100. Moreover, the Y-shaped configuration of the plates 400 reduces the overall size of the plates 400 to smaller than the size of the known plates, and also increases the openness of the plates 400 to the flow of the synthetic gas cooler 100 compared to the known synthetic gas cooler plates.

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas passes along the stoves 400 to facilitate heating of the boiler feed water passing through the stoves 400 to produce steam. By its nature, the synthesis gas passing through the synthesis gas cooler 100 is optically dense and has solid particles that restrict radiant heat transfer to the plates 400 due to the limited light paths. Moreover, particulate matter in a syngas pair may have a tendency to deposit on plates 400, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the plates 400 to the synthetic gas duct help to reduce the deposition of solid particles from the synthetic gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 400 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increase production costs, which depend on the size of the synthetic gas cooler 100.

FIG. 9 shows another embodiment of a plurality of stoves 450 that can be used with a synthetic gas cooler 100. Plates 450 include a first plurality of plates 452 and a second plurality of plates 454. The plates 450 are arranged circumferentially around a center line 104. More specifically, although only a semicircle of plates 450 is shown in FIG. 9, as one skilled in the art will recognize. , in one embodiment, the plates 450 are located completely around the center line 104. In an alternative embodiment, the plates 450 are located at any distance around the center line 104, which allows the syngas cooler 100 to operate as described herein. In an illustrative embodiment, the plates 452 are radially inward from the plates 454. More specifically, the plates 452 extend radially outward from the midline 104 to the wall or casing (shown in FIG. 2) of the synthetic gas cooler 100, and the plates 454 extend outward from the plates 452 to the wall of the synthetic gas cooler 100. In an alternative embodiment, the plates 452 extend from the midline 104 at an oblique angle with respect to the wall of the synthetic gas cooler 100. Moreover, in the illustrative embodiment, the plates 454 extend obliquely from the plates 452. More specifically, the first plate 456 extends from each plate 452 obliquely in the first direction, and the second plate 458 extends from each plate 452 obliquely in the opposite direction so that one plate 452 and a pair of plates 454 form a Y-shape.

In an illustrative embodiment, the plates 450 are substantially linear, however, as one skilled in the art will recognize, in an alternative embodiment, the plates 450 are non-linear. Moreover, in the illustrative embodiment, the plates 452 have a length L ₈ , and the plates 454 have a length L ₉ that is greater than the length L ₈ . In an alternative embodiment, the length L ₈ is greater than the length L ₉ . In another embodiment, the length L ₈ is substantially the same as the length L ₉ . In a further embodiment, the plates 452 have different lengths and / or the plates 454 have different lengths.

Moreover, the plates 450 are adapted to be attached to the pipe jacket (shown in FIG. 2) and extend substantially vertically through the syngas cooler 100. Moreover, the Y-shaped configuration of the plates 450 reduces the overall size of the plates 450 to smaller than the size of the known plates, and also increases the openness of the plates 450 to the duct of the synthetic gas cooler 100 in comparison with the known synthetic gas cooler plates.

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas flows along stoves 450 to facilitate heating boiler feed water through stoves 450 to produce steam. By its nature, the syngas flowing through the syngas cooler 100 is optically dense and has solid particles that restrict radiant heat transfer to the plates 450 due to the limited light paths. Moreover, particulate matter in a syngas pair may have a tendency to deposit on plates 450, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the plates 450 to the synthesis gas duct help to reduce the deposition of particulate matter from the synthesis gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 450 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increasing production costs, which depend on the size of the synthetic gas cooler 100.

10 shows an additional embodiment of a plurality of stoves 500 that can be used with a syngas cooler 100. 11 is a top view of the plates 500. The plates 500 are spiral. More specifically, each plate 500 extends both vertically along the midline 104 and circumferentially around the midline 104. Moreover, each plate 500 extends a length L ₁₀ outward from the midline 104 to the wall or casing (shown in FIG. 2) synthetic gas cooler 100. Moreover, each plate 500 partially overlaps an adjacent plate 500 so that the plurality of plates 500 form a spiral-helical structure.

Plates 500 are configured to attach to a pipe jacket (shown in FIG. 2) and extend substantially vertically through a syngas cooler 100. Moreover, the spiral configuration of the slabs 500 reduces the overall size of the slabs 500 to smaller than the size of the known slabs, and also increases the openness of the slabs 500 to the duct of the syngas cooler 100 in comparison with the known syngas chiller slabs.

During operation, the syngas vapor discharged from the blowing agent (shown in FIG. 1) is transferred to the top of the syngas cooler 100. Synthetic gas passes along the stoves 500 to facilitate heating of the boiler feed water passing through the stoves 500 to produce steam. By nature, the syngas passing through the syngas cooler 100 is optically dense and has solid particles that limit radiant heat transfer to the plates 500 due to the limited light paths. Moreover, particulate matter in a syngas vapor may have a tendency to deposit on plates 500, thereby reducing heat transfer. However, in the illustrative embodiment, the vertical orientation and increased openness of the plates 500 to the synthetic gas duct help to reduce the deposition of particulate matter from the synthetic gas vapor. As a result, it helps to increase the heat transfer from the syngas steam to the boiler feed water and steam production. Moreover, the reduced size of the plates 500 helps to reduce the total length and / or diameter of the synthetic gas cooler 100 without adversely affecting the production of steam and / or increasing production costs, which depend on the size of the synthetic gas cooler 100.

12 shows yet another embodiment of a plurality of stoves 550 that can be used with a syngas cooler 100. The plates 550 include the first part of the plates 552 and the second part of the plates 554. More specifically, the plates 552 are made essentially similar to the plates 300 (shown in FIG. 6), and the plates 554 are made essentially like the plates 500 (shown in 10 and 11).

13 shows an alternative embodiment of a plurality of stoves 600 that can be used with a syngas cooler 100. Slabs 600 include a first portion of slabs 602 and a second portion of slabs 604. More specifically, slabs 602 are made substantially similar to the embodiment of slabs 300 shown in FIG. 8, and slabs 604 are made substantially similar to the embodiment of slabs 300 shown in Fig.7.

Although FIGS. 12 and 13 show only combinations of the plates shown in FIGS. 6, 10 and 11, as one skilled in the art will understand, any of the plates shown in FIGS. 3-11 can be used in combinations to form a plurality of plates that can be used with a syngas cooler 100.

More specifically, any combination of slabs described herein will help to reduce the deposition of particulate matter from the syngas vapor, thereby increasing the heat transfer from the syngas vapor to the boiler feed water and increasing the steam production. Moreover, any combination of panels described herein will help to reduce the total length and / or diameter of the syngas cooler 100 while maintaining steam production and reducing costs that depend on the size of the syngas cooler 100.

In one embodiment, a method of manufacturing a synthetic gas cooler is provided. The method includes the steps of attaching a tubular casing inside the syngas cooler and attaching a plurality of plates to the tubing casing to facilitate the production of steam in the syngas cooler. At least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and an angular position that is inclined relative to the wall of the synthetic gas cooler. In an illustrative embodiment, the method includes attaching a plurality of plates in a circle around a midline of a syngas cooler.

Moreover, in one embodiment, the method includes attaching the first plate at an angle with respect to the second plate. In another embodiment, the method includes manufacturing at least one arcuate plate. In a further embodiment, the method includes manufacturing at least one spiral plate. Moreover, in an illustrative embodiment, the method includes manufacturing at least one of a plurality of plates with an increased surface area to help improve steam production in a syngas cooler. In an illustrative embodiment, the method also includes manufacturing at least one of a plurality of plates with geometry that helps reduce the overall size of the syngas cooler.

The systems and methods described above help to reduce the overall length and / or diameter of the syngas cooler while maintaining steam production and reducing costs that depend on the size of the syngas cooler. More specifically, during operation, the syngas vapor is discharged from the blowing agent to the top of the vertically oriented syngas cooler. The synthetic gas then passes along the stoves to heat the boiler feed water passing through the stoves, thereby producing steam. By its nature, the synthesis gas passing through the synthesis gas cooler is optically dense and has solid particles that limit radiant heat transfer to the plates due to the limited light paths. Moreover, particulate matter in a syngas pair can also be deposited on boards, further reducing heat transfer.

Accordingly, the slabs described herein are oriented vertically and spaced from the midline of the syngas cooler to help prevent the deposition of particulate matter from the syngas vapor. Moreover, the slabs described herein are configured to facilitate greater openness of the surface area of the slab to the duct of the syngas cooler compared to the known syngas cooler plates. More specifically, the stoves described herein are configured with geometric configurations, the number, angle and length of the stoves being different from the known synthetic gas cooler stoves. More specifically, the plates are made with different lengths and / or non-linear geometries and / or are made with the possibility of attaching to the pipe casing at an oblique angle relative to the wall of the synthetic gas cooler.

By reducing the deposition of particulate matter and increasing the surface area of the cooker boards described herein, the heat transfer from the syngas steam to the boiler feed water is increased and thus the steam production is increased. In addition, the stoves described herein are designed with the need for less space inside the syngas cooler. Accordingly, the plates help to reduce the total length and / or diameter of the syngas cooler while maintaining steam production and reducing costs that depend on the size of the syngas cooler.

As used here, an element or step mentioned in the singular should be understood as not excluding the plural of the mentioned elements or steps, unless such an exception is explicitly mentioned. Moreover, references to the “one embodiment” of the present invention are not intended to be interpreted as precluding the existence of additional embodiments that also include the mentioned features.

Illustrative embodiments of systems and methods for manufacturing syngas cooler plates have been described in detail above. The systems and methods shown are not limited to the specific embodiments described herein; on the contrary, system elements can be used independently and separately from other elements described herein. Moreover, the steps described in the method can be used independently and separately from the other steps described herein.

Although the invention has been described with respect to various specific embodiments, it should be understood that the invention may be implemented with changes not going beyond the essence and scope of the claims.

Claims (20)

1. A method of manufacturing a synthetic gas cooler, comprising the steps of:
attaching a pipe casing inside the syngas cooler; and attaching a plurality of plates to the tubular casing to facilitate steam production in the syngas cooler, wherein at least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and angular position, which is inclined relative to the wall of the syngas cooler. 2. The method according to claim 1, wherein attaching a plurality of plates to a pipe casing further includes attaching a plurality of plates in a circle around an approximate midline of the syngas cooler. 3. The method according to claim 1, in which attaching a plurality of plates to the pipe casing further includes connecting the first plate at an angle relative to the second plate. 4. The method according to claim 1, further comprising manufacturing at least one arcuate plate. 5. The method according to claim 1, further comprising the manufacture of at least one spiral plate. 6. The method according to claim 1, further comprising the manufacture of at least one of a plurality of plates with an increased surface area to help improve the production of steam in a synthetic gas cooler. 7. The method according to claim 1, further comprising manufacturing at least one of a plurality of plates with geometry that helps reduce the overall size of the syngas cooler. 8. A synthetic gas cooler comprising:
pipe casing;
a plurality of plates attached to the pipe casing to facilitate the production of steam in the syngas cooler, wherein at least the first plate has at least one of a length that is greater than the length of the second plate, non-linear geometry and angular position, which is inclined relative to the wall of the syngas cooler. 9. The cooler of claim 8, in which a plurality of plates are connected around the circumference around the approximate midline of the synthetic gas cooler. 10. The cooler of claim 8, in which the first plate is connected at an angle relative to the second plate. 11. The cooler of claim 8, in which at least one of the plurality of plates is arcuate. 12. The cooler of claim 8, in which at least one of the plurality of plates is spiral. 13. The cooler of claim 8, in which at least one of the plurality of plates has an increased surface area to help improve the production of steam in the synthesis gas cooler. 14. The cooler of claim 8, in which at least one of the plurality of plates helps to reduce the overall size of the synthetic gas cooler. 15. Many plates made with the possibility of attaching to the pipe casing of the syngas cooler to facilitate the production of steam in the syngas cooler, at least the first plate has at least one length that is greater than the length of the second plate , non-linear geometry and angular position, which is inclined relative to the wall of the synthetic gas cooler. 16. The plate according to clause 15, attached at an angle relative to the second plate. 17. The stove according to item 15, made arcuate. 18. The stove according to claim 15, made spiral. 19. The stove of Claim 15, having an increased surface area to help improve steam production in the syngas cooler. 20. The stove according to clause 15, helping to reduce the overall size of the synthetic gas cooler.

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