Burner for gas generator

FIELD: machine building.

SUBSTANCE: module of burner for gas generator consists of two-step spreader of two-component mixture flow, of two component supplying tubes running from two-step two component mixture spreader, and of face plate of burner, where there pass tubes for supply of two-component mixture. The face plate contains a cooling system designed for plate cooling. Further, the module of the gas generator burner consists of circular nozzles built in the face plate of the burner; also each circular nozzle envelops a corresponding tube supplying two-component mixture. The two-step flow spreader of two component mixture flow contains a main cavity consisting of spreaders of flow of the first step and of secondary cavities diverging from the main cavity on further ends of the spreaders of the first step. Also each secondary cavity comprises the spreaders of flow of the second step. Tubes for supply of two-component mixture run from each secondary cavity on the further ends of the spreaders of the second step flow. The face plate of the burner contains a porous metal partition with nozzles passing through it; the cooling system has a porous metal partition cooled with reagents infiltrating through the porous metal face plate. The face plate of the burner contains a back plate, a front plate and a channel of cooling medium between the back and front plates. The cooling system contains the cooling medium channel. In the cooling system cooling medium flows through this channel to cool the front plate. The front plate contains transition metal. The burner module additionally contains conic elements running through the back plate and the front plate; also each conic element is installed on the end of each tube for supply of two component mixture. Each conic element contains a circular nozzle.

EFFECT: raised efficiency of installation for gasification of carbon containing materials.

20 cl, 8 dwg

 

The technical field

The invention in General relates to the gasification of carbonaceous materials such as coal or petroleum coke. More specifically the invention relates to an injector device and method, which are used to obtain high efficiency of the installation of such gasification of carbonaceous materials.

Background of invention

Electricity and system operating on electrical energy spread everywhere, and the provision of energy sources is a vital task. For example, various systems can convert petrochemical products, for example, carbonaceous materials such as coal and petroleum coke, into electrical energy. Further, these petrochemical products are used for various other energy carriers, such as steam, which can be used to drive steam turbines.

The conversion of carbonaceous materials such as coal and petroleum coke in the synthesis gas are mixtures of hydrogen and carbon monoxide, is a well-known industrial process used in the petrochemical industry and in the technology of gas turbines. Over the last 20 years at the forefront in the production of synthesis gas was released technology generators with the flow of coal. However, in the quiet generators with the download thread cannot use the technology of nozzles, rapid mixing. Failure to use such technology leads to the fact that the volume of gas generators and capital costs to create them significantly exceed acceptable levels. It is expected that the technology injectors ensuring quick mixing, will reduce the volume of gas generators with the download thread is on the order of magnitude, i.e. about 10 times. The decrease in the total capital cost of building such plants coal gasification due to the substantial volume reduction is urgently needed.

Since 1975, the company Rocketdyne developed and tested a range of designs injectors ensuring quick mixing, for coal gasification. Most of these developments and software testing was conducted under contracts with the U.S. Department of energy in the period 1975-1985, the Basic design of a nozzle, which was tested on specified programs, was a five head. In each five-channel head (4 round 1) was used four high-speed gas jets, which were sent to the Central flow of two-component coal blend. Four nozzle gas flows were spaced 90 degrees relative to each other circumferentially formed around the Central nozzle of a two-component coal blend. The angle is between the gas stream and the Central stream of two-component coal blend was usually 30 degrees. Each five-channel head was designed to supply approximately 4 t/h 100 t/day) dry coal so that in the commercial installation of the gasifier, the processing of 3600 tons/day should be used approximately 36 of these five heads.

Generally speaking, the known nozzle, which ensures rapid mixing for coal gasification, in which the flow of oxygen or mixture of oxygen and steam is directed to a stream of binary mixture, quite effective, but their characteristics are rapidly deteriorating due to the fact that the high temperature combustion of coal in an atmosphere of oxygen occur in the immediate vicinity of the surface of the nozzle in the context of local oxidation processes. These temperature combustion in many cases can exceed 5000°F (2760°C). In addition, the known construction of such nozzles, which ensures rapid mixing, prone to clogging in terms of two-component jet coal mixture.

The invention

Offered the gas generator containing the gasification chamber and the injector module, which, in turn, contains a two-stage separator flow of a binary mixture and the front plate nozzle with integrated cooling system, in accordance with a preferred implementation of the present invention. Module injector is used on which I feed stream binary mixture under high pressure in the gasification chamber and the main stream of binary mixture flow of the reagent under high pressure to obtain a reaction gas inside the reaction the camera, which resulted in a two-component mixture is converted into synthesis gas.

Two-stage separator flow of a binary mixture contains the main cavity, which served the main flow of a binary mixture. The main cavity contains flow dividers of the first step, cutting the main flow of a binary mixture in the secondary flows, which are served in the secondary cavity extending from the main cavity to the far ends of the dividers flow of the first stage. Each secondary cavity contains flow dividers of the second stage, cutting each of the secondary flow of a binary mixture on tertiary flows, which are served in the inlet pipe of a two-component mixture, the exhaust from the secondary cavities in the far ends of the dividers flow of the second stage. Tertiary streams are injected under high pressure into the gasification chamber through the supply pipes to the two-component mixture. The reagent is injected under high pressure through the annular nozzle built into the front plate of the nozzle, so that it hits in the flow of a binary mixture of high pressure. Each annular nozzle surrounding the corresponding supply pipe of a two-component mixture, which passes through the front plate of the nozzle. In particular, each annular nozzle creates a circular flow of high pressure, which is hit from all sides in the corresponding thread of a two-component mixture. That is, the flow of a binary mixture covered fully around the circumference of the reagent, which hits in the flow of a binary mixture.

The resulting gasification reaction creates a very high temperature and abrasive material, such as slag on the surface of the face plate of the injector or in the immediate vicinity of it. However, cooling system, integrated in the front plate nozzles, supports its temperature, which is sufficient to significantly reduce or completely prevent damage to the face plate of the injector high temperature and/or abrasive material.

Features, functions and advantages of the present invention can be achieved independently in various embodiments of the present invention or can be achieved together in other ways.

Brief description of drawings

The present invention will become apparent in its entirety from the following description and the accompanying drawings.

Figure 1 is an isometric image of a gas generator containing the module injector and the gasification chamber, in accordance with a preferred implementation of the present invention.

Figure 2 is a view in section of a two-stage separator flow of a binary mixture composed of the module injector are presented in figure 1.

Figure 3 is a view in section of the of odule injectors, presented in figure 1, illustrating one embodiment of the cooling system for the front plate of the nozzle.

4 is an isometric image of the face plate of the injector are presented in figure 3.

Figure 5 is a view in section modulus of the nozzles, are presented in figure 1, illustrating another embodiment of the cooling system for the front plate of the nozzle.

6 is an isometric image of the back side of the face plate of the injector are presented in figure 5.

7 is an isometric image of the front side of the front plate of the nozzle are presented in figure 5.

Fig is a flowchart illustrating a method of gasification of carbonaceous materials, which uses the gas generator, are presented in figure 1.

Corresponding reference numbers indicate corresponding parts in the various drawings.

Detailed description of the invention

In the following description of the preferred implementations of the invention are merely examples, and it is assumed that they in no way limit the scope of the invention and its use. In addition, the advantages of the preferred variants of the invention described below are only examples, and not all of the preferred options have the same advantages or merits in the same article the penalty.

Figure 1 shows the gas generator 10 that contains the module 14 of the nozzle connected to the chamber 18 of the gas supply. The injector module 14 is designed to supply a jet of a binary mixture under high pressure into the chamber 18 of the gas and directions to the specified stream of binary mixture flow of the reagent under high pressure to obtain a reaction gas inside the chamber 18 of the gas supply, which resulted in a two-component mixture is converted into synthesis gas. More specifically, the module 14 of the nozzle mixes the carbon-containing material such as coal or petroleum coke, with transport medium two-component mixture, such as nitrogen (N2, carbon dioxide CO2or synthesis gas, for example, a mixture of hydrogen and CO, for the formation of a binary mixture. Then the injector module 14 supplies a two-component mixture under pressure into the chamber 18 of the gas and almost simultaneously introduces other reagents, such as oxygen and steam into the chamber 18 of the gas supply. Module 14 of the nozzle directs the flow of the other reagents in a stream of two-component mixtures, which leads to a reaction gas supply, which provides reception of high-energy synthesis gas, for example, hydrogen and carbon monoxide.

Module 14 of the nozzle disclosed in this description and the camera 18 gasification subsystems are full installation gasifier and, capable of producing synthesis gas from carbonaceous materials such as coal or petroleum coke. For example, module 14 of the nozzle and the chamber 18 of the gas can be subsystems, i.e. components, a compact high-efficiency single-stage gasification installation, as described in the application U.S. No. 11/081144 (filed 16.03.2005, is called “Compact gas generator with high efficiency”, the right to the application assigned the company The Boeing Company).

The injector module 14 contains a two-stage separator 22 and tube 26 of the two-component feed mixture passing from the two-stage separator 22 through the front plate 30 of the nozzle. In the described embodiment of the invention, the injector module 14 contains 36 of the tube 26 filing a binary mixture. Pipes 26 the flow of a binary mixture is supplied under high pressure from the injector module 14 and is introduced into the chamber 18 of the gas supply. Pipe 26 filing a binary mixture are essentially hollow tubes, open at both ends to ensure the free flow of two-component mixture. That is, when the passage of the two-component mixture through pipe 26 dosing is not possible. In addition, the flow of a binary mixture passing through the pipes 26 is a pulse dense phase flow. The front plate 30 of the nozzle contains a cooling system for cooling the front PLA is Tina 30 thus, so that it can withstand high temperatures and abrasion abrasive particles that occur in the gasification reaction. The injector module 14 further comprises a front plate 30 of the nozzle ring nozzle 34. Annular nozzle 34 in more detail is shown in figure 4 and 5. Annular nozzle cover 34 around the circumference of the respective pipe 26 of the two-component feed mixture and are intended for the direction of the reagent streams binary mixture supplied through the pipes 26, resulting in the gasification reaction.

Two-stage separator 22 of the flow of two-component mixtures are presented in figure 2, contains the main cavity 38, containing a multitude of dividers 42 of the flow of the first stage, and the secondary cavity 46 extending from the main cavity 38 at the far ends of the dividers 42 of the flow of the first stage. The dividers 42 flow first stage dissect the main flow of a binary mixture on a lot of secondary flows and direct them into the secondary cavity 46. As the flow of a binary mixture is pulse dense phase, it is important to avoid abrupt changes in the direction of its velocity. Abrupt changes in the direction of the flow velocity of a two-component mixture cause clogging of the channels through which flows the flow inside the injector module 14, for example in the secondary cavities 46.

Often the spine, proper configuration of dividers 42 of the flow of the first stage (and dividers 50 flow second stage, as described below) and size optimization of pipe 26 supply of two-component mixtures is important due to the fact that the two-component mixture (gas/solid particles or liquid/solid particles) have characteristics typical of plastic liquids Bingham (Bingham). A binary mixture of carbon-containing materials are not Newtonian fluids, most of them can be attributed to plastic Bingham fluids. A binary mixture of carbon-containing materials to a greater extent characterized by the voltage-current coefficient of rigidity than viscosity. Therefore, if the shear stress on the inner wall of the two-stage separator 22 of the flow of a binary mixture will be less than the voltage of the binary mixture flow, the flow will clog the separator 22. This fact is complicated by the fact that to minimize erosion of the walls of the abrasive solid particles in a binary mixture flow velocity should be kept below a certain value, for example below 50 ft (15.2 m/s), which, in turn, leads to a low shear stresses in the wall at the voltage level of the plastic flow of the liquid.

Therefore, the dividers 42 of the flow of the first stage is designed in about the time, to the direction of velocity of flow of a binary mixture changed no more than about 10°, when the flow of a binary mixture is divided into secondary streams. Accordingly, each of the dividers 42 flow first stage forms an angle with the Central line C1the main cavity, the value of which is in the range of about 5°-20°. Further, the dividers 42 of the flow of the first stage are connected at point 48 so that the flow channels do not contain any rounded or blunt bodies, which could hit the two-particle mixture and to cause clogging of the flow channels within the module 14 of the nozzle, for example in the secondary cavities 46. Thus, when splitting the flow of a binary mixture in the channels passing flows are no sharp narrowing or widening.

Further, the size of the pipes 26 filing a binary mixture are selected so as to maintain the desired flow rate of a two-component mixture inside the pipe 26, for example, about 30 ft/s (9.1 m/s). To ensure good mixing of the two streams mix and reagent emerging from the nozzles 34, the pipe 26 of the two-component feed mixture should have a suitable inner diameter, for example, less than 0.5 inches (1.27 cm). However, due to problems with clogging, the inner diameter of the pipe 26 to the ACI component of the mixture should not be less than a certain value, for example, not less than 0.2 inches (0.5 cm). If in a two-component mixture as the transport medium is gas, such as CO2N2or H2then the annular nozzle 34 has only to ensure good mixing of the reagents directed to the flow of a binary mixture, and therefore the pipe 26 filing a binary mixture can have a larger diameter, for example about 0.5 inch (1.27 cm). However, if as a transport medium in a two-component mixture is water, jets of reagents, leaving a ring of nozzles 34, should, against the stream of binary mixture, breaking it into tiny droplets. Therefore, the pipe 26 supply of two-component mixture, in this case to have a smaller diameter, for example about 0.2 inch (0.5 cm) or less. Thus, to supply the same number of binary mixture in the chamber 18 of the gas supply, if as a transport medium is water, the nozzle 14 should be used more pipes 26 filing a binary mixture, and, consequently, a greater number of annular nozzles 34, compared with a scheme in which the transport medium is gas.

Each secondary cavity 46 includes dividers 50 flow second stage, which cut through the secondary flows on the tertiary and send the latest in pipe 26 p the villas two-component mixture. Pipe 26 filing a binary mixture depart from the secondary cavities 46 in the far ends of the dividers 50 flow second stage and serves the flow of a binary mixture under high pressure into the chamber 18 of the gas supply. As in the case of dividers 42 flow first stage it is important that the dividers 50 flow second stage did not cause abrupt changes in the direction of the velocity of flow of a binary mixture. Therefore, the dividers 50 flow second stage is designed in such a way that the direction of velocity of flow of a binary mixture has not changed by more than 10°, approximately, when the flow of a binary mixture is divided into the tertiary streams. Accordingly, each of the dividers 50 flow second stage forms an angle β with the Central line C2secondary cavities 46, the value of which is approximately in the range of 5°-20°. Further, the dividers 50 flow second stage are connected at the point 52 so that the flow channels do not contain any rounded or blunt bodies, which could hit the two-particle mixture and to cause clogging of channels passing the flow inside the injector module 14, for example in the secondary cavities 46.

In the illustrative embodiment of the invention, the dividers 42 flow first stage dissect the main flow of a binary mixture on six toric what's threads going to six secondary cavities 46 of the main cavity 38. Similarly, each divider 50 flow second stage of cuts corresponding secondary flow of a binary mixture of six tertiary flows and sends them to the six respective tubes 26 filing a binary mixture, the exhaust from the secondary cavities 46. Thus, in this illustrative implementation of the invention, the injector module 14 is a separator flow of a binary mixture, in which the main flow of a binary mixture is divided into thirty-six tertiary streams, which are sent in thirty-six tubes 26 filing a binary mixture.

Figure 3 and 4 relating to different choices of the invention shown, the front plate 30 of the nozzle is made of a porous metal partitions, through which pass the annular nozzle 34. In such embodiments, the front plate 30 of the nozzle may be of any thickness and design, suitable for cooling of the front plate 30 of the nozzle due to leakage of the reagents so that the front plate 30 may be able to withstand the high gas temperatures, for example temperatures of about 5000°F (2760°C) and above, and the abrasive action arising from the gasification reaction. For example, the front plate 30 of the nozzle may be that is the woman from, about 3/8 inch (0.95 cm) to about 3/4 inch (1.9 cm) and be made of a material rigimesh®.

As is best shown in figure 4, the annular nozzle 34 pass through the front plate 30 of the nozzle from its rear side 54 and contain a number of passages 34A. Passages 34A significantly converge toward the front side 58 (facing into the chamber 18 of the gas) of the front plate 30 of the nozzle and form a circular hole on the front side 58. Reagents directed to the flow of a binary mixture coming out of the pipes 26, serves under pressure, for example, about 1200 psi (8.3 MPa) into the chamber 62 of the collector reagent module 14 of the nozzle through the inlet manifold 66 reagent. The pressure inside the chamber 62 of the collector reagent causes the reagents to flow into the annular nozzle 34 through which a jet of reagent go in the chamber 18 of the gas on the two-component mixture flowing into the chamber 18 through the pipes 26 filing a binary mixture.

Cooling is provided by leakage of the reactants through the porous metal front plate 30 of the nozzle. That is, the reactants pass through the pores of the metal front plate 30 of the nozzle, resulting in its cooling. However, the porosity of the front plate 30 of the nozzle is such that the passage through it of the reagents is difficult or limited, so that in the chamber 18 of the gas will occupait much smaller amounts of reagents at low speed, for example, 20 m/s (6 m/s)than at high speed, such as 500 ft (152 m/s)at which the reagents are received in the chamber 18 of the gas through the annular nozzle 34. For example, from about 5% to 20% of the reagent, filed into the chamber 62 of the collector reagent passes through the porous face plate 30 of the nozzle, and the rest of the reagent, i.e., about 80-95%, flows freely through the annular nozzle 34. Therefore, the front plate 30 of the nozzle is cooled in the leakage of reagents through its pores to temperatures that are sufficiently low, for example below about 1000°F (537,8°C) so that prevents damage to the front plate 30 of the nozzle. Since the porous face plate 30 of the nozzle is cooled reagents seeping through her pores, for example steam or oxygen, it is necessary that the material of the plate 30 was primarily compatible with the reagents; in this case, compatibility with other gases produced in the gasification reaction, is not significant. Thus, the flow of reactants through the porous face plate 30 of the nozzle prevents the interaction more aggressive and/or abrasive gases and particles generated in the gasification reaction, with the surface of the plate 30. In addition, the flow of reactants through the porous face plate 30 of the nozzle prevents slackbuilds the surface of the plate 30, as the flow of the leaching reagent suppresses all recirculation zone inside the chamber 18 of the gas, which otherwise would lead to the interaction of molten slag from the surface of the plate 30.

The front plate 30 of the nozzle, presented on figure 5, 6 and 7 for the other variants of the invention includes a back plate 70, the front plate 74 (facing into the chamber 18 of the gas) and the channel 78 of the cooling medium formed between these plates. The cooling system includes a channel 78 of the cooling medium, which with reasonable speed passes a cooling medium under high pressure, for example, about 1200 psi (8.3 MPa) at a speed of 50 ft/sec (15.2 m/s), cooled front plate 74. More specifically, the cooling medium, such as steam or water, is pumped into the inlet portion A the annular channel via the inlet pipe 86. The cooling medium flows from the input part A annular channel in the channel 78 of the cooling medium through the connecting passage 90. Then, the cooling medium flows through the channel 78 to the output portion 82B annular channel through a connecting passage 94, where the cooling medium leaves the injector module 14 through the outlet piping of the cooler (not shown). In General, the input part A and the output part 82B annular channel cooling medium to form a toroidal channel 82, which is first split in two so that the cooling medium is forcibly fed into the channel 78 through the passage 90 and leaves the channel through the passage 94.

In an illustrative implementation of the invention, the coolant is water. Water is supplied under pressure of about 1200 psi (8.3 MPa) at a temperature in the range of about 90°F (32,2°C)-120°F (48,9°C). The cooling water flows in the channel 78, cooling the front plate 74 and exits the injector module 14 at a temperature in the range 250°F (121, 1million°C)-300°F (148,9°C).

In one embodiment of the invention, the lumen of the channel 78 of the cooling medium, which represents a gap between the rear plate 70 and the front plate 74 may be in the range of about 3/8 inch (0.95 cm) to 1/2 inch (1.27 cm). The front plate 74 may be made of any metal, alloy or composite material that can withstand the aggressive effects of acid gases containing slag, and abrasion resistance at temperatures below about 600°F (315,6°C)occurring in the gasification reaction on the front plate 74. For example, the front plate 74 may be made of a transition metal, such as copper or a copper alloy, developed by the North American Rock Company and well known as NARIoy-Z. in Addition, the front plate 74 may be of any thickness that provides a low resistance value of heat transfer, such as the er, between approximately 0.025 inches (0,06 cm) and of 0.250 inch (0.6 cm).

Next, as shown in figure 5, 6 and 7, the injector module 14 further comprises a series of conical elements 98 which pass through the back plate 70, the channel 78 of the cooling medium and the front plate 74. Conical elements 98 pass through the back plate 70 and the front plate 74, connected with them and sealed in such a way that the cooling medium flowing in the channel 78, unable to penetrate it into the chamber 62 of the manifold or chamber 18 of the gas supply. Each conical element 98 covers the end of one of the respective tubes 26 of the two-component feed mixture and contains an annular nozzle 34. In the illustrative embodiment of the invention the pipe 26 of the two-component feed mixture is embedded in the conical elements 98 and sealed with a metal sealing rings (not shown). Because any leakage between the tubes 26 of the two-component feed mixture and conical elements 98 will only lead to an increased flow of reagent, for example, steam and oxygen from the chamber 62 of the collector reagent into the chamber 18 of the gas supply, it is not necessary to seal between the pipe 26 of the two-component feed mixture and conical elements 98 was perfect, then there would be a complete seal.

As best shown in Fig.6 and 7, annular nozzle 34 soda is subject to a number of passages 34B, which, visibly converging, extend through the conical elements 98 on their rear sides 102 to their front sides 106, which are formed circular openings. Reagents directed to the flow of a binary mixture coming out of the pipes 26, delivered under pressure into the chamber 62 of the collector reagent module 14 of the nozzle through the inlet manifold 66 reagent (shown in figure 3). The pressure inside the chamber 62 of the collector reagent causes the reagents to flow into the annular nozzle 34 through which a jet of reagent go in the chamber 18 of the gas on the two-component mixture flowing into the chamber through the pipes 26 filing a binary mixture.

On Fig presents a flowchart illustrating a method of gasification of carbonaceous materials using the installation gasification 10, in accordance with various variants of the present invention. First, the main flow of a binary mixture is fed into the main cavity 38 two-stage separator 22 of the flow of a binary mixture (reference number 202). Then the main thread binary mixture is divided by the divider 42 of the flow of the first stage on the secondary streams that flow into the secondary cavity 46 (reference number 204). Then each of the secondary stream is separated by dividers 50 on tertiary flows two-component mixture, which come in tubes 26 feeding docompare is based mixture (reference 206). Then tertiary streams binary mixture are introduced into the chamber 18 of the gas, and they are directed annular streams of reagent introduced through the annular nozzle 34 (reference number 208). When the collision of the flows of the reactants and two-component mixture is a reaction gas, which is formed by high-energy synthesis gas, for example hydrogen and carbon monoxide (reference number 210). And, finally, the front plate 30 of the nozzle is cooled so that it will withstand the high temperatures and abrasion as a result, the gasification reaction, resulting in the collision of the flow of reagent from the tertiary flow of two-component mixtures (reference number 212).

In various embodiments of the invention, the front plate 30 of the nozzle is cooled by its production of a porous material and the transmittance of the reagent through the pores of the material of the front plate 30 of the nozzle. In such embodiments of the inside of the front plate 30 of the nozzle are formed annular nozzle 34, and the reagent is fed through each of the annular nozzle 34.

In other embodiments of the invention, the front plate 30 of the nozzle contains a back plate 70, the front plate 74 and the channel 78 of the cooling medium between them. Then the front plate 30 of the nozzle is cooled by passing coolant environments is through the channel 78 for cooling the front plate 74. In such embodiments of the annular nozzle is integrated in the front plate 30 of the nozzle so that each conical element 98 passes through the back plate 70, the channel 78 of the cooling medium and the front plate 74. Each conical element 98 includes an annular nozzle 34, which directs an annular flow of reagent to the flow of a binary mixture introduced through the corresponding pipe 26 filing a binary mixture.

Specialists in the art can understand from the above description that the essence of the present invention can be implemented in various forms. Therefore, although the invention is described in connection with specific examples, the real scope of the invention are not limited to, as experts will become apparent other modifications in accordance with the invention contained in the description, the drawings and the attached claims.

1. Module injector for a gas generator containing a two-stage separator flow of a binary mixture; the inlet pipe of a two-component mixture passing from
two-stage separator flow of two-component mixtures;
the front plate of the nozzle, through which pass the inlet pipe of a two-component mixture, and which contains a cooling system designed to cool the wafer;
annular nozzle built into whether ewww plate nozzles, each annular nozzle surrounding the corresponding supply pipe of a two-component mixture.

2. The injector module of claim 1, wherein the two-stage separator flow of a binary mixture contains
the main cavity containing flow dividers of the first degree, and
secondary cavity extending from the main cavity to the far ends of the dividers of the first stage, each secondary cavity contains flow dividers of the second stage, and the inlet pipe of a two-component mixture are from each secondary cavity on the far ends of the dividers flow of the second stage.

3. The injector module of claim 1, wherein the face plate of the injector contains a porous metal wall, which has passing through it the nozzle and the cooling system contains a porous metal wall, which is cooled in the leakage of the reactants through the porous metal front plate.

4. The injector module of claim 1, wherein the face plate of the injector contains a back plate, front plate and the channel of the cooling medium between the rear and front plates, and cooling system includes a cooling medium channel through which a cooling medium is passed for cooling the front plate.

5. Module injector according to claim 4, in which the front plate contains a transition metal.

6. Module injector according to claim 4, which further comprises a conical elements, passing through the back plate and the front plate, each conical element mounted on each end of the feed tube of a two-component mixture.

7. Module injector according to claim 6, in which each conical element contains an annular nozzle.

8. The gasification installation, containing
the gasification chamber in which a stream of dry two-component mixture is supplied under high pressure is directed reagent under high pressure for the emergence reactions of gasification, which converts a dry two-component mixture in the synthesis gas, and
module injector connected to the gasification chamber to feed into it under high pressure stream of dry two-component mixture and the direction of the reagent under high pressure to flow dry two-component mixture, with the injector module contains
two-stage separator flow of two-component mixtures;
the inlet pipe of a two-component mixture passing from the two-stage separator flow of a binary mixture for submitting a dry two-component mixture in the gasification chamber;
the front plate of the nozzle containing the inlet pipe of a two-component mixture, which pass through the plate, and a cooling system for cooling the front plate in the way, so that it can withstand high temperatures and abrasion abrasive particles that occur in the gasification reaction;
annular nozzle built into the front plate nozzles, with each nozzle covers the circumference of the corresponding supply pipe of a two-component mixture and is designed to direct the reagent to the flow of a binary mixture supplied through the corresponding supply pipe mixture, to obtain a reaction gas.

9. Installations for the gasification of claim 8, in which a two-stage separator two-component mixture contains the main cavity containing flow dividers of the first stage, intended for dissection of the main flow on the secondary flows that are directed into the secondary cavity, passing from the main cavity to the far ends of the dividers flow of the first stage.

10. The gasification installation according to claim 9, in which the secondary cavity two-stage separator flow of two-component mixtures contain flow dividers of the second stage intended for dissection secondary flows in tertiary flows, which are served in the inlet pipe of a two-component mixture, the exhaust from the secondary cavities in the far ends of the dividers flow of the second stage.

11. Installations for the gasification of claim 8, in which the front plastination contains a porous metal wall, which has passing through it the nozzle and the cooling system contains the face plate of the nozzle constituting the porous metal wall, which is cooled as the result of leakage through her agents.

12. Installations for the gasification of claim 8, in which the face plate of the injector contains a back plate, front plate and the channel of the cooling medium between them, and the cooling system includes a cooling medium channel through which flows a cooling medium for cooling the front plate.

13. Installations for the gasification indicated in paragraph 12, in which the front plate contains a transition metal.

14. Installations for the gasification indicated in paragraph 12, in which the injector module further comprises a conical elements, passing through the back plate, the cooling medium channel and the front plate, each conical element mounted on each end of the feed tube of a two-component mixture.

15. The gasification installation in 14, in which each conical element contains an annular nozzle.

16. Method of gasification of carbonaceous material comprising the following steps:
the flow of the main flow of a binary mixture in the main cavity of the two-stage separator module injector;
the separation of the main flow of a binary mixture in the secondary threads that post is forced into the secondary cavity, passing from the main cavity to the far ends of the dividers flow of the first stage;
the separation of each of the secondary flow of a binary mixture on tertiary flows, which are received in the inlet pipe of a two-component mixture passing from each secondary cavity on the far ends of the dividers flow of the second stage;
submission tertiary binary mixture flows through the pipes feeding the mixture into the gasification chamber connected to the module injector;
the direction of the circular flow of reagent to the corresponding tertiary streams binary mixture inside the gasification chamber through the annular nozzle built into the front plate of the module nozzles, each annular nozzle surrounding the corresponding supply pipe of a two-component mixture, and
cooling of the front plate so that it will withstand the high temperatures and abrasion caused by the gasification reaction, resulting in the collision of the flow of reagent from the tertiary flow of two-component mixture.

17. The method according to clause 16, in which the transmission of the reactant through the porous metal front plate, which is made of porous metal.

18. The method according to 17, in which the direction of the circular flow of reagent contains the following:
the formation of circular nozzles inside Paris the th metal faceplates, and
enter the reagent through the annular nozzle.

19. The method according to clause 16, in which the cooling of the front nozzle plate contains the following:
manufacturing the front plate containing the back plate, the front plate and the channel of the cooling medium between them, and
passing the cooling medium through the channel of the cooling medium for cooling the front plate.

20. The method according to claim 19, in which the direction of the circular flow of reagent contains the following:
install conical elements inside of the front plate of the module nozzles so that each conical element passes through the back plate, the cooling channel and the front plate and includes an annular nozzle; and
enter the reagent through the annular nozzle.



 

Same patents:

Coaxial jet nozzle // 2291977

FIELD: power engineering.

SUBSTANCE: coaxial jet nozzle comprises hollow tip that connects the space of one of the fuel components with the combustion zone and bushing that embraces the tip to define a ring space and connects the space of the other fuel component with the combustion zone. The exit section of the tip is provided with the radial grooves so that the periphery of the central jet bounded by the generatrices of the beams is no more than 3s, and the beam length is 2.3-2.5s, where s is the beam thickness.

EFFECT: enhanced completeness of combustion.

1 cl, 3 dwg

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine has central stage arranged in gas duct of engine from its part arranged higher relative to direction of main gas flow to part lower in direction of main gas flow and provided with exhaust gas cone forming device in direction of main gas flow, and guide arrangement. Gas-turbine engine has group of blades, group of fuel nozzles and group of igniters. Guide arrangement is located in zone of edge of exhaust gas cone-forming device arranged higher relative to direction of main gas flow. Group of blades is located in gas duct out of the limits of central stage. Blades are provided with atomizing guides extending through blades. Fuel nozzles are installed on inner ends of corresponding atomizing guides. Each nozzle is provided with input, output and passage between input and output. Passage has part arranged to direct fuel flow to first part of passage surface located across and widening downwards in direction of flow with subsequent deflection fuel flow by first part of surface and its outlet from nozzle. Igniters are arranged in corresponding atomizing guides for igniting fuel from corresponding fuel nozzle.

EFFECT: provision of reliable lighting up in afterburner, improved recirculation of fuel in flow.

13 cl, 8 dwg

FIELD: burners.

SUBSTANCE: burner is made of well of specified length (up to 650 mm). The fuel flowing through stabilizer of fuel supply enters the fuel supply pipe and then through fuel nozzles to the mixing chamber of the nozzle. The fuel jet impacts on the conical hollow in the working face of the deflector, thus enhancing the spraying of fuel. The compressed steam enters the ring passage defined by the fuel and steam supply pipes. The steam then enters the first (hydraulic) spraing stage of the mixing chamber through the steam nozzles drilled in the swirler radially and tangentially. The mixing chamber is interposed between the hydraulic deflector and exit section of the fuel nozzle. The steam entrains the fuel jet broken down with the deflector and then continues to break it in the second (gas) spraying stage, in the zone around the rod of the hydraulic deflector.

EFFECT: improved quality of spraying.

3 cl, 4 dwg

FIELD: burners.

SUBSTANCE: nozzle has mixing chamber whose section arranged downstream of the radial nozzles of the first sprayer is conical. The nozzles of the third sprayer are arranged over the periphery at the outlet of the conical section of the chamber. The nozzles of the third sprayer are connected with the ring row of the passages of the first sprayer. The nozzles of the third sprayer are mounted at an angle of to the vertical axis of the nozzle and under an angle of to its plane.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

The invention relates to a technique of spraying a liquid and can be used in burners, oil-fired and intended for carrying out roofing work, as well as to heat the bitumen in the bitumen tank trucks and concrete

Injector // 2218521
The invention relates to energy, namely the technique of spraying fluid with compressed air or steam in the process chambers for the combustion of liquid (gaseous) fuel boilers for atomizing liquids, in particular slurries, solutions, suspensions

The invention relates to the combustion of liquid fuel to the injectors to burn oxygen and liquid fuels, and the nozzle has an outer casing containing the first input end, a second output end for exit of the flame combustion and which defines a combustion chamber and a longitudinal X axis; means for supplying fuel to enter the stream of sprayed fuel on the input end and the direction of its outlet end and means for supplying oxygen to the input of oxygen into the input end and for its direction to the outlet end, and means for supplying oxygen has many outlets for oxygen, located on a circle around the fuel and angled radially inwards in the direction of the output end and directed obliquely relative to the X-axis for education thereby converging cone flow of oxygen, which crosses the flow of fuel in the first, located along the flow area, and means for supplying fuel actually has a Central outlet opening having an inner surface in the form of a diverging cone, which forms the fuel as it flows from there, with the inner surface of the diverging cone contains the first surface of the diverging cone of the UCA further comprises a second surface diverging cone, adjacent to the first surface of the diverging cone, and the first surface of the diverging cone has a higher angle from the X axis than the second surface diverging cone

The invention relates to a power system

The invention relates to the field of heat and is designed for combustion of fuel, mostly liquid in boiler furnaces, stoves and energy-technological units for the preparation of fluid and thermal treatment of industrial waste and can be used for burning fuel oil and other liquid fuels in different fuel devices

Injector // 2172893
The invention relates to a technique of spraying fluid with compressed air or steam in the process chambers for various purposes for the combustion of liquid (gaseous) fuel boilers and other combustion energy devices

FIELD: machine building.

SUBSTANCE: module of burner for gas generator consists of two-step spreader of two-component mixture flow, of two component supplying tubes running from two-step two component mixture spreader, and of face plate of burner, where there pass tubes for supply of two-component mixture. The face plate contains a cooling system designed for plate cooling. Further, the module of the gas generator burner consists of circular nozzles built in the face plate of the burner; also each circular nozzle envelops a corresponding tube supplying two-component mixture. The two-step flow spreader of two component mixture flow contains a main cavity consisting of spreaders of flow of the first step and of secondary cavities diverging from the main cavity on further ends of the spreaders of the first step. Also each secondary cavity comprises the spreaders of flow of the second step. Tubes for supply of two-component mixture run from each secondary cavity on the further ends of the spreaders of the second step flow. The face plate of the burner contains a porous metal partition with nozzles passing through it; the cooling system has a porous metal partition cooled with reagents infiltrating through the porous metal face plate. The face plate of the burner contains a back plate, a front plate and a channel of cooling medium between the back and front plates. The cooling system contains the cooling medium channel. In the cooling system cooling medium flows through this channel to cool the front plate. The front plate contains transition metal. The burner module additionally contains conic elements running through the back plate and the front plate; also each conic element is installed on the end of each tube for supply of two component mixture. Each conic element contains a circular nozzle.

EFFECT: raised efficiency of installation for gasification of carbon containing materials.

20 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: continuous feed method for gas generator atomiser, in which pressure control valve (108) and/or throttle (109) is installed in circulation line of water-coal suspension of gas generator, pressure monitoring device (PT1) is connected to water-coal suspension pump outlet (102); at that, control line of device (PT1) is connected to pressure control valve (108); water-coal suspension line between valve (104) and atomiser (105) is connected to shielding gas line through valve (110); pressure control valve (206) and/or throttle (207) is installed in drain line of oxidiser of gas generator, and pressure monitoring device indicating the pressure (PIC) is connected to outlet of valve (202) of flow regulator; at that, control line of device (PIC) is connected to pressure control valve (206), and oxidiser line between valve (204) and atomiser (105) is connected to shielding gas line through valve (208) including the following operations: 1) opening of valve (107) of water-coal suspension circulation, and closing of two valves (103, 104), adjustment of feed flow of water-coal suspension via water-coal suspension circulation line for the appropriate atomiser (105); 2) opening of valve (110) in order to ensure the supply of shielding gas to atomiser (105); 3), opening of drain valve (205) of oxidiser and closing of two valves (203, 204), adjustment of feed flow of oxidiser in drain oxidiser line for the corresponding atomiser (105); 4) opening of valve (208) in order to ensure the supply of shielding gas to atomiser (105); adjustment of pressure control valve (108) and/or throttle of hole (109) in circulation line of water-coal suspension to pressure of water-coal suspension, which exceeds working pressure of gas generator (106) by 0.05-2.5 MPa; adjustment of pressure control valve (206) and/or throttle of hole (207) in drain oxidiser line to oxidiser pressure exceeding the working pressure of gas generator (106) by 0.05-4 MPa; after it has been determined that pressure and flow parameters of water-coal suspension and oxidiser are normal and gas generator (106) operates without any failures, continuous feed of atomiser (105) is performed, and the following shall be done for that purpose: water-coal suspension circulation valve (107) is closed; two valves (103, 104) are opened; valve (110) is closed; after that, water-coal suspension is supplied to gas generator (106) through atomiser (105); drain valve (205) of oxidiser is closed; two valves (203, 204) are opened; valve (208) is closed; after that, oxidiser is supplied to gas generator (106) through atomiser (105); 8) rotation speed of water-coal suspension pump (102) and degree of flow control valve (202) opening is adjusted in order to ensure normal operating load on atomiser (105).

EFFECT: invention allows reducing the probability of emergency shutdown of gas generators and improving reliability of long service life of multi-atomiser gas generator with opposite atomisers.

4 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention refers to chemical industry. Device for obtaining CO and H2 containing crude gas by means of gasification of ash-bearing fuel with oxygen containing gas at temperatures above ash fusion temperature in reactor-gasifier 1 with adjacent gas cooling chamber 9 and convergent transient channel 5 from one chamber to another. In the constricted transient channel 5 there are provided wall surfaces 6 formed with cooling tubes. Constricted transient channel 5 is equipped with neck 15 with edge 15a for moisture removal. In order to form additional mixing chamber 7a, neck 15 on the constricted transient channel 5 is additionally enclosed with the other mixing tube 16.

EFFECT: invention allows reducing the amount of fly ash, as well as the amount of non-gasified fuel.

11 cl, 7 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention refers to a device for solid fuel materials feed to a gasification reactor of solid fuel materials, which includes the following: crushing device (2), dust collector (3), storage reservoir (4), at least two sluice feeders (5), one or more connection devices (12) for transportation in a dense flow, feed tank (13), gasification reactor (15), in which crushing device (2) is connected to storage reservoir (4) by means of connection device; with that, dust collector (3) is arranged between crushing device (2) and storage tank (4), which includes pressure rise device (18) that returns transporting gas from feed tank (13) to sluice feeder (5). With that, storage tank (4) is connected to sluice feeders (5) through connection devices, which are made so that they can be moved by gravity or transported in a dense flow, and sluice feeders (5) are connected to feed tank (13) by means of jointly used one or more connection devices (12), which are useful as pipeline (12) for continuous feed for transportation in dense flow. With that, feed tank is connected to gasification reactor through additional fuel pipelines (14). Invention also refers to a method for feed of fine fuel to the coal gasification reactor.

EFFECT: reduction of number of pieces of equipment, height of a building structure, and improving reliability of the device.

33 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: device is installed on a gas generator with flow gasification; with that, burners are fixed in the burner attachment device and pass through a flange fixing the burner attachment device on the gas generator with an air flow and through the burner attachment device into the gas generator. The cooling device has at least two independent cooling circuits; besides, each gas burner has one cooling circuit at least partially so that each gas burner on the end facing the end surface is enveloped with a section of the cooling device; with that, at least one cooling circuit at least partially belongs to the end surface for cooling. Under the flange inside the gas burner attachment device in the downward direction, the gas burners are enveloped with a layer of insulating and fireproof (at least up to 800°C) filling compound with heat conductivity coefficient of 0.02 to 0.8 W/m•K, layer of fireproof (at least up to 800°C) bulk material and a layer of heat-conducting and fireproof (at least up to 1500°C) filling compound with heat conductivity coefficient of 3 to 15 W/m•K.

EFFECT: providing protection against overheating; improving reliability and safety of the plant.

16 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: object of the invention lies in that the method of pressurised fuel delivery is suggested for gasification unit and this cost-effective method ensures minimisation or even complete removal of hazardous substances emission in the process of coal sluicing and transporting. It is attained due to the fact that for sluicing and transporting the gas containing at least 10 ppm of CO in its volume is used; at that oxygen-containing gas is mixed to the above gas and the mixture is heated up to the temperature when oxidation of at least 10% of hazardous substances in gas takes place.

EFFECT: increased efficiency of method.

7 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to gasification systems and can be used in chemical reactors and pipeline systems for raw material injection. Injection system for raw material feed contains several ring channels 314, 316, 318 arranged in concentric configuration around longitudinal axis, and several helical elements 312 passing into path for fluid flow. The helical elements 312 are made with possibility to move axially in ring channel. At least one helical element 312 contains several blades placed along helical path and spaced from each other. In this structure, one of helical elements 312 is made capable to impart the first circular rotation to fluid flow, and the other helical element 312 is made capable to impart counterflow circular rotation.

EFFECT: invention permits to mill and mix raw material, to increase time of its presence in the device and to improve efficiency of processing.

23 cl, 9 dwg

FIELD: chemistry.

SUBSTANCE: invention refers to a method for producing synthesis gas by combined gasification in a solid and fluid fuel ash flow. The above fuel is supplied separately into a coal gasification reactor through a number of burners; the burners have a combustion angle of more than 0° that reduces carbon formation and increases a degree of conversion. A solid fraction is supplied in a combination with an inert gas into the gasification reactor. The ash solid fuel contains at least partially fine coal particles produced by coal recovery and cannot be applicable for gasification in a fixed coal bed. The ash fluid fuel contains a residue of gasification in the fixed coal bed.

EFFECT: assisting the gasification with the combined use of the ash fluid residue of gasification in the fixed bed and small coal particles, which cannot be applicable for the gasification in a fixed coal bed, as well as minimising the carbon formation.

10 cl, 3 dwg, 1 ex

FIELD: process engineering.

SUBSTANCE: invention relates to introduction of coal and gas recycling in production of synthesis gas. Proposed process consists in feed powder (C) and process gas into gasification reactor (2). Proposed gas (P) is reduced to synthesis gas (S) with the help of powder (C). Said powder (C) is fed into reactor (2) via inlet section. At said section, Laval nozzle (15 is used to develop pressure for said powder (C). Process gas (P) expands in gasification space (5) in reactor (2).

EFFECT: compact design, uniform temperature and homogeneous composition, adequate recycling of synthesis-gas in gasification reactor.

14 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry. Device contains discharge cone (1), equipped with gas-permeable wall parts (6, 6') and two leading to burners pipelines (15) for solid material discharge, with discharge cone (1) being also equipped with locking bottom (4, 22), which, at least, on certain parts is gas-permeable, with locking bottom (4, 22) having supply (17, 23) of fluidising agent.

EFFECT: invention makes it possible to reduce excessive quantities of gas and refuse from separate discharge cones on each pipeline of burner.

10 cl, 5 dwg

FIELD: burners.

SUBSTANCE: nozzle has mixing chamber whose section arranged downstream of the radial nozzles of the first sprayer is conical. The nozzles of the third sprayer are arranged over the periphery at the outlet of the conical section of the chamber. The nozzles of the third sprayer are connected with the ring row of the passages of the first sprayer. The nozzles of the third sprayer are mounted at an angle of to the vertical axis of the nozzle and under an angle of to its plane.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

Up!