A device for enhancing the mixing of heat carrier medium and cracking raw materials

Abstract

The present invention discloses a device for enhancing the mixing of a heat carrier medium and a cracking raw material, comprising a cylinder and a distributor. A cylinder feed port is provided at the top of the cylinder, for conveying one of the heat carrier medium and the cracking raw material; the distributor is connected to the cylinder and extends into the interior of the cylinder; the distributor comprises an inner sleeve and a plurality of nozzles; the inner sleeve comprises a first flow channel, for conveying the other of the heat carrier medium and the cracking raw material; the nozzle is connected to the inner sleeve and is arranged at intervals along the axial direction of the distributor, the axis of the nozzle is parallel to the axis of the cylinder feed port, and is used to spray out the material in the first flow channel. The device for enhancing the mixing of a heat carrier medium and a cracking raw material according to the present invention can effectively improve the sufficiency and uniformity of the mixing of the heat carrier medium and the cracking raw material in the cylinder, so that the temperature of the cracking raw material is raised to a suitable cracking temperature, which is beneficial to the cracking of the cracking raw material, and effectively reduces the occurrence of problems such as insufficient cracking or excessive cracking to produce by-products or even coking.

Description

Technical Field

[0001] The invention relates to the field of petroleum cracking, and in particular to a device for enhancing the mixing of a heat carrier medium and cracking raw materials. Background Art

[0002] Thermal cracking of petroleum hydrocarbons is currently the mainstream method for producing small molecule olefins. High reaction temperature and short residence time are conducive to increasing olefin yield and reducing by-product generation rate, so cracking requires high thermal intensity. From the perspective of heat transfer, thermal cracking can be divided into indirect heating cracking and direct heating cracking.

[0003] Indirect heating cracking refers to the transfer of heat to the cracking raw material through a heat transfer medium. It is the main method for producing most small molecule olefins. A typical method is to use a tubular cracking furnace, where the heat source medium transfers heat to the cracking raw material inside the tube through the tube wall outside the tube. However, considering the temperature resistance limit of the furnace tube material, the cracking temperature cannot be further increased, and the olefin yield is limited.

[0004] Direct heating cracking means that the heat source directly transfers heat to the cracking raw material without a heat transfer medium, which can further increase the cracking temperature and help improve the olefin yield. In this cracking method, the uniformity of the hot carrier gas and the cracking raw material is also a major factor affecting the olefin yield and coking problems.

[0005] However, due to structural reasons, the current direct heating cracking device has a blind spot when mixing the heat source medium and the cracking raw material. The two media cannot be completely and fully mixed, which can easily cause the temperature of the cracking raw material to be too low or too high, thereby causing insufficient cracking of the cracking raw material or excessive cracking to produce by-products or even coking.

[0006] To this end, the present invention provides a device for enhancing the mixing of a heat carrier medium and a cracking feedstock, so as to at least partially solve the problems in the related art. Summary of the invention

[0007] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0008] In order to at least partially solve the above problems, the present invention provides a device for enhancing the mixing of a heat carrier medium and a cracking raw material, characterized in that the device comprises:

[0009] A cylinder, wherein a cylinder feed port is provided at the top of the cylinder for conveying one of the heat carrier medium and the cracking raw material;

[0010] A distributor, the distributor is connected to the cylinder and extends into the interior of the cylinder, the distributor comprising:

[0011] An inner sleeve, the inner sleeve comprising a first flow channel for conveying the other of the heat carrier medium and the cracking raw material;

[0012] A plurality of nozzles are connected to the inner sleeve and are spaced apart along the axial direction of the distributor. The axis of the nozzle is parallel to the axis of the barrel feed port and is used to spray out the material in the first flow channel.

[0013] According to the device for enhancing the mixing of the heat carrier medium and the cracking raw material of the present invention, a cylinder feed port is arranged at the top of the cylinder, and a plurality of nozzles are arranged at intervals along the axial direction of the distributor on a distributor extending into the interior of the cylinder, which can effectively widen the distribution range of the cracking raw material or heat carrier medium sprayed from the nozzle in the cylinder, and is conducive to enhancing the mixing of the cracking raw material or heat carrier medium sprayed from the nozzle and the heat carrier medium or cracking raw material entering the cylinder from the cylinder feed port in the cylinder, effectively improving the sufficiency and uniformity of the mixing of the cracking raw material and the heat carrier medium, thereby increasing the temperature of the cracking raw material to a suitable cracking temperature, which is conducive to the cracking of the cracking raw material, and effectively reducing the occurrence of problems such as insufficient cracking or excessive cracking to produce by-products or even coking; the axis of the nozzle is set to be parallel to the axis of the cylinder feed port, so that the flow direction of the heat carrier medium and the cracking raw material can be parallel, which is conducive to further enhancing the mixing of the heat carrier medium and the cracking raw material in the cylinder, so as to further effectively improve the sufficiency and uniformity of the mixing of the two.

[0014] Optionally, along a direction perpendicular to the axis of the cylinder, the inner cross-section of the cylinder is configured as a polygon, and the axis of the distributor is parallel to at least one side of the polygon.

[0015] Optionally, the opening of the nozzle faces the barrel feed port.

[0016] Optionally, at least one row of the distributors is arranged along the axial direction of the cylinder, and each row includes a plurality of the distributors arranged parallel to each other.

[0017] Optionally, on the cross section of the cylinder, the spraying ranges of adjacent nozzles are tangent to or overlap each other.

[0018] Optionally, along a direction perpendicular to the axis of the cylinder, the inner cross-section of the cylinder is configured as a hexagon.

[0019] Optionally, the openings of the inner sleeves of two adjacent distributors in the same row of distributors are arranged oppositely.

[0020] Optionally, the distributor further comprises:

[0021] An intermediate sleeve, wherein the intermediate sleeve is sleeved on the outer side of the inner sleeve and forms a second flow channel with the inner sleeve, wherein the second flow channel is used to transport a cooling medium;

[0022] An outer sleeve, wherein the outer sleeve is sleeved on the outside of the middle sleeve and forms a third flow channel with the middle sleeve, wherein the third flow channel is communicated with the second flow channel, and the nozzle extends through the middle sleeve and the outer sleeve.

[0023] Optionally, the device also includes an inlet pipe opening and an outlet pipe opening, the inlet pipe opening is connected to the outer sleeve, and the outlet pipe opening is connected to the middle sleeve, along the axial direction of the distributor, the inlet pipe opening and the outlet pipe opening are both arranged near the inlet of the first flow channel, and the second flow channel and the third flow channel are connected at the end of the distributor away from the inlet.

[0024] Optionally, at least a portion of the intermediate sleeve is located in the outer sleeve, and the discharge pipe opening is arranged on a portion of the intermediate sleeve extending beyond the outer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings of the present invention are used to understand the present invention as part of the present invention. The embodiments of the present invention are shown in the drawings and the description thereof is used to explain the principle of the present invention.

[0026] In the attached figure:

[0027] Figure 1 A simplified structural diagram of a device for enhancing mixing of a heat carrier medium and a cracking raw material according to a preferred embodiment of the present invention;

[0028] Figure 2 A top view of a device for enhancing mixing of a heat carrier medium and a cracking raw material according to a preferred embodiment of the present invention;

[0029] Figure 3 A diagram showing the spray range of a nozzle of a device for enhancing the mixing of a heat carrier medium and a cracking raw material according to a preferred embodiment of the present invention; and

[0030] Figure 4 It is a schematic cross-sectional view of a distributor of a device for enhancing mixing of a heat carrier medium and cracking raw materials according to a preferred embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 100: Device for enhancing the mixing of heat carrier medium and cracking raw materials 110: Cylinder

[0033] 111: Cylinder feed port 112: Accommodation space

[0034] 120: distributor 120a: distributor first end

[0035] 120b: distributor second end 121: inner casing

[0036] 121a: first end of inner sleeve 121b: second end of inner sleeve

[0037] 122: Nozzle 123: Intermediate sleeve

[0038] 123a: first end of the intermediate sleeve 123b: second end of the intermediate sleeve

[0039] 124: outer sleeve 124a: first end of outer sleeve

[0040] 124b: second end of outer sleeve 125: first flow channel

[0041] 125a: Inlet 126: Second flow channel

[0042] 127: Third flow channel 128: First cover plate

[0043] 129: Second cover plate 130: Entrance opening

[0044] 140: discharge pipe outlet 150: distributor flange DETAILED DESCRIPTION

[0045] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0046] In order to fully understand the present invention, a detailed structure will be presented in the following description to illustrate the present invention. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments and should not be construed as being limited to the embodiments presented here.

[0047] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. The singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0048] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0049] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and do not limit the present invention.

[0050] The present invention provides a device 100 for enhancing the mixing of a heat carrier medium and a cracking raw material, which can effectively enhance the sufficiency and uniformity of the mixing of the heat carrier medium and the cracking raw material, so that the cracking raw material is cracked at a suitable temperature.

[0051] refer to Figure 1 According to a preferred embodiment of the present invention, a device 100 for enhancing mixing of a heat carrier medium and a cracking raw material includes a cylinder 110 and a distributor 120 .

[0052] The barrel 110 can be roughly cylindrical and has an internal accommodation space 112. A barrel feed port 111 connected to the accommodation space 112 is provided at the top of the barrel 110, which is used to transport one of a heat carrier medium and a cracking raw material into the accommodation space 112. The heat carrier medium can be superheated water vapor, CO or H2, etc., and the cracking raw material can be petroleum hydrocarbons, etc. The distributor 120 is used to transport the other of the heat carrier medium or the cracking raw material into the accommodation space 112 of the barrel 110. That is, one of the heat carrier medium or the cracking raw material enters the accommodation space 112 of the barrel 110 from the barrel feed port 111, and the other enters the accommodation space 112 from the distributor 120. The following will be described by taking the heat carrier medium entering the accommodation space 112 from the barrel feed port 111 as an example.

[0053] After the heat medium enters the containing space 112 of the barrel 110 from the barrel feed port 111, it flows downward along the height direction of the barrel 110. The temperature of the heat medium is about 1500°C.

[0054] The axis of the barrel feed port 111 is preferably parallel to the axis of the barrel 110, so that the heat carrier medium can flow downward in the accommodating space 112 in a direction parallel to the axis of the barrel 110, which facilitates the uniform distribution of the heat carrier medium in the accommodating space 112 and is also beneficial to the setting of the barrel feed port 111.

[0055] More preferably, the axis of the barrel feed port 111 coincides with the axis of the barrel 110 , so as to facilitate the heat medium to be evenly distributed in the accommodating space 112 after entering the accommodating space 112 through the barrel feed port 111 , thereby reducing the blind area of ​​the heat medium distribution in the accommodating space 112 .

[0056] The distributor 120 is connected to the cylinder 110 and extends into the interior of the cylinder 110, that is, into the accommodation space 112. One end of the distributor 120 is fixedly connected to the cylinder 110, for example, the connection with the cylinder 110 can be achieved through a flange.

[0057] Specifically refer to Figure 4 , along the axial direction of the distributor 120, the distributor 120 includes a distributor first end 120a and a distributor second end 120b. A distributor flange 150 is provided at a position close to the distributor first end 120a, and a barrel flange (not shown) is provided at a position of the barrel 110 connected to the distributor 120. Through the matching connection between the distributor flange 150 and the barrel flange, the distributor first end 120a can be conveniently connected to the barrel 110, that is, the distributor 120 is connected to the barrel 110, specifically referring to Figure 1 .

[0058] exist Figure 1 In the illustrated embodiment, the second end 120b of the distributor is not connected to the barrel 110. It is understood that whether the second end 120b of the distributor is connected to the barrel 110 can be determined according to actual conditions, such as according to the length of the distributor 120. If the length of the distributor 120 is relatively long, in order to strengthen the fixing effect on the distributor 120, the first end 120a of the distributor and the second end 120b of the distributor can be connected to the barrel 110. If the length of the distributor 120 is relatively short, in order to simplify the installation and fixing operation of the distributor 120, only the first end 120a of the distributor can be connected and fixed to the barrel 110.

[0059] The distributor 120 includes an inner sleeve 121 and a plurality of nozzles 122, specifically referring to Figure 4The inner sleeve 121 includes an inner sleeve first end 121a and an inner sleeve second end 121b. A first flow channel 125 is formed inside the inner sleeve 121. The first flow channel 125 is used to transport the other of the heat carrier medium and the cracking raw material, such as transporting the cracking raw material. The opening of the inner sleeve 121 is provided at the inner sleeve first end 121a, and the opening forms an inlet 125a of the first flow channel 125. When the distributor 120 is mounted to the cylinder 110, the inner sleeve first end 121a preferably extends to the outside of the cylinder 110, so as to be connected to a supply device (not shown) for the cracking raw material.

[0060] The second end 121b of the inner sleeve is connected to a first cover plate 128, which seals the second end 121b of the inner sleeve to prevent the cracking material from flowing out of the second end 121b of the inner sleeve. The first cover plate 128 can be connected to the first end 121a of the inner sleeve by means such as welding to ensure the strength of the connection and the sealing effect of the first cover plate 128 on the first end 121a of the inner sleeve.

[0061] A plurality of nozzles 122 are arranged at intervals along the axial direction of the distributor 120 and are connected to the inner sleeve 121, that is, connected to the first flow channel 125, so as to spray out substances in the first flow channel 125, such as spraying out cracking raw materials.

[0062] The arrangement of multiple nozzles 122 can effectively broaden the distribution range of the cracking raw materials sprayed from the nozzles 122 in the accommodating space 112 of the barrel 110, which is beneficial to enhancing the sufficiency and uniformity of mixing the cracking raw materials with the heat carrier medium entering from the barrel feed port 111 in the accommodating space 112, thereby increasing the temperature of the cracking raw materials to a suitable cracking temperature, which is beneficial to the cracking of the cracking raw materials and effectively reduces the occurrence of problems such as insufficient cracking or excessive cracking to produce by-products or even coking.

[0063] The axis of the nozzle 122 is preferably arranged parallel to the axis of the barrel feed port 111. Correspondingly, the axis of the distributor 120 is arranged perpendicular to the axis of the barrel 110, so that the heat carrier medium entering the containing space 112 from the barrel feed port 111 is parallel to the flow direction of the cracking raw material sprayed from the nozzle 122, which is beneficial to further improve the sufficiency and uniformity of mixing the cracking raw material and the heat carrier medium in the containing space 112.

[0064] Further preferably, the opening of the nozzle 122 is arranged toward the barrel feed port 111, so that the heat carrier medium entering the containing space 112 from the barrel feed port 111 has an opposite flow direction to the cracking raw material ejected from the nozzle 122, that is, the heat carrier medium and the cracking raw material form a countercurrent in the containing space 112, which can effectively enhance the mixing of the heat carrier medium and the cracking raw material in the containing space 112, and greatly improve the sufficiency and uniformity of the mixing of the two.

[0065] refer to Figure 1 and Figure 2 A row of distributors 120 is arranged along the axial direction of the cylinder 110, and each row includes a plurality of distributors 120 arranged in parallel and spaced apart from each other. In this way, on the cross section of the cylinder 110, the coverage of the cracking raw material sprayed from the nozzle 122 in the accommodation space 112 can be effectively widened, and the coverage blind area of ​​the cracking raw material can be reduced, so that the cracking raw material can be evenly distributed in the accommodation space 112, which is conducive to strengthening the mixing of the cracking raw material and the heat carrier medium, and effectively improving the sufficiency and uniformity of the mixing of the two.

[0066] exist Figure 2 In the illustrated embodiment, each row includes 9 distributors 120 that are arranged in parallel and spaced apart from each other. However, the number of distributors 120 in each row can be set according to actual needs, such as 6, 8, 10 or 12.

[0067] It can be understood that in order to further improve the sufficiency and uniformity of the mixing of the heat medium with the cracking raw material in the process of flowing downward in the accommodation space 112, multiple rows of distributors 120 can be arranged at intervals along the axial direction of the cylinder 110, that is, at least one row of distributors 120 is arranged along the axial direction of the cylinder 110. Preferably, each row can include multiple distributors 120 arranged in parallel and at intervals. In this way, along the axial direction of the cylinder 110, the cross sections at different positions of the cylinder 110 are widely covered with cracking raw materials, which is conducive to strengthening the mixing of the heat medium and the cracking raw materials.

[0068] Similarly, by reasonably designing the spacing between the nozzles 122 on each distributor 120 , it is also possible to effectively widen the coverage of the cracking raw materials sprayed from the nozzles 122 in the containing space 112 on the cross section of the cylinder 110 .

[0069] Specifically refer to Figure 3 , the spacing between each nozzle 122 on each distributor 120 can be reasonably designed so that the spraying ranges A of adjacent nozzles 122 are tangent to each other on the cross section of the barrel 110. In this way, the coverage of the cracking raw material sprayed from the nozzle 122 can be effectively widened, and the number of installed nozzles 122 can be reduced, taking into account the mixing effect of the cracking raw material and the heat carrier medium and the manufacturing cost of the device 100 for mixing the heat carrier medium and the cracking raw material.

[0070] exist Figure 3 In the illustrated embodiment, the mixture of the cracking raw material and the heat transfer medium can also cover the area B between adjacent ejection ranges A through the intense heat and mass transfer mixing process of the cracking raw material and the heat transfer medium.

[0071] It can be understood that in other embodiments not shown, the spacing between the nozzles 122 on each distributor 120 can also be reasonably designed so that the distance between two adjacent nozzles 122 is slightly smaller than the spray width of the nozzle 122, that is, the spray range A of the nozzle 122, so as to ensure that there is a certain amount of overlap on the outside of the spray width of two adjacent nozzles 122, so that on the cross-section of the cylinder 110, the spray ranges A of adjacent nozzles 122 overlap with each other, so as to effectively reduce the coverage blind area of ​​the cracking raw material between the nozzles 122, that is, effectively reduce the area B between adjacent spray ranges A.

[0072] Continue to refer Figure 2 , along the direction perpendicular to the axis of the cylinder 110, that is, on the cross section of the cylinder 110, the inner cross section of the cylinder 110 is configured as a polygon, that is, the edge of the accommodation space 112 is configured as a polygon. In this way, more distributors 120 can be arranged on the cross section of the cylinder 110, effectively reducing the blind area of ​​the distributor 120 arrangement, and further reducing the blind area of ​​the cracking raw material sprayed from the nozzle 122 on the cross section of the cylinder 110, which is conducive to the cracking raw material filling the accommodation space 112 as much as possible.

[0073] Preferably, the axis of the distributor 120 is parallel to at least one side of the polygon to reduce the blind area between the nozzle 122 on the distributor 120 and the polygon, which is conducive to the cracking raw material filling the accommodation space 112 as much as possible. And setting the axis of the distributor 120 to be parallel to at least one side of the polygon is also conducive to the installation of the distributor 120.

[0074] exist Figure 2 In the illustrated embodiment, the inner cross-section of the cylinder 110 is configured as a hexagon, preferably a regular hexagon, in a direction perpendicular to the axis of the cylinder 110, so as to effectively reduce the blind area of ​​the distributor 120 and facilitate the manufacture of the accommodating space 112. The axis of the distributor 120 is preferably parallel to a set of opposite sides of the regular hexagon, so as to reduce the blind area between the nozzle 122 on the distributor 120 and the regular hexagon and facilitate the installation of the distributor 120.

[0075] Preferably, in the same row of distributors 120, the openings of the inner sleeves 121 of two adjacent distributors 120 are arranged oppositely, specifically referring to Figure 2 That is to say, the inlets 125a of the first flow channels 125 of two adjacent distributors 120 are arranged oppositely, so as to facilitate the arrangement and installation of the supply device of the cracking raw material connected to the distributor 120, avoid the interference between the above supply devices during the installation process, and also facilitate the miniaturization and compactness of the device 100 for enhancing the mixing of the heat carrier medium and the cracking raw material.

[0076] Continue to refer Figure 4 The distributor 120 preferably also includes an intermediate sleeve 123 and an outer sleeve 124 .

[0077] The middle sleeve 123 is sleeved on the outer side of the inner sleeve 121, and a second flow channel 126 is formed between the middle sleeve 123 and the inner sleeve 121. The second flow channel 126 is used to transport cooling medium such as cooling water, so as to cool the inner sleeve 121 when the first flow channel 125 is used to transport heat medium, so as to prevent the heat medium at about 1500°C from damaging the inner sleeve 121, and further prevent the heat medium at about 1500°C from damaging the distributor 120.

[0078] The intermediate sleeve 123 includes an intermediate sleeve first end 123a and an intermediate sleeve second end 123b. The intermediate sleeve first end 123a is connected to the inner sleeve first end 121a, for example, by welding to the outer surface of the inner sleeve first end 121a to improve the connection strength. The intermediate sleeve second end 123b has an opening, that is, the intermediate sleeve second end 123b is configured in a non-enclosed form.

[0079] At least part of the inner sleeve 121 is located in the middle sleeve 123. Preferably, along the axial direction of the distributor 120, the inner sleeve first end 121a can extend through the middle sleeve 123, so that the inner sleeve first end 121a can be connected to the cracking raw material supply device.

[0080] The outer sleeve 124 is sleeved on the outer side of the middle sleeve 123, and a third flow channel 127 is formed between the outer sleeve 124 and the middle sleeve 123. The third flow channel 127 is also used to transport cooling medium such as cooling water, so as to cool the outer sleeve 124 when the heat medium enters the accommodation space 112 from the barrel feed port 111, thereby preventing the heat medium at about 1500°C from damaging the outer sleeve 124, and further preventing the heat medium at about 1500°C from damaging the distributor 120.

[0081] The outer sleeve 124 includes an outer sleeve first end 124a and an outer sleeve second end 124b. The outer sleeve first end 124a is connected to the middle sleeve first end 123a, for example, by welding to the outer surface of the middle sleeve first end 123a to improve the connection strength.

[0082] The second end 124b of the outer sleeve is connected to a second cover plate 129, which seals the second end 124b of the outer sleeve to prevent the cooling medium from flowing out of the second end 124b of the outer sleeve. The second cover plate 129 can be connected to the second end 124b of the outer sleeve by means such as welding to ensure the strength of the connection and the sealing effect of the second cover plate 129 on the second end 124b of the outer sleeve.

[0083] The third flow channel 127 is connected to the second flow channel 126 , so that the cooling medium flowing through the third flow channel 127 can enter the second flow channel 126 and flow out after flowing through the second flow channel 126 , so as to form a complete flow channel for the cooling medium.

[0084] The device 100 for enhancing the mixing of heat carrier medium and cracking raw material further includes an inlet pipe 130 and an outlet pipe 140. The inlet pipe 130 is connected to the outer sleeve 124, that is, connected to the third flow channel 127, so as to transport the cooling medium into the third flow channel 127. The outlet pipe 140 is connected to the middle sleeve 123, that is, connected to the second flow channel 126, so as to discharge the cooling medium in the second flow channel 126.

[0085] Preferably, along the axial direction of the distributor 120, the inlet nozzle 130 and the outlet nozzle 140 are both arranged near the inlet 125a of the first flow channel 125, and the second flow channel 126 and the third flow channel 127 are connected at one end of the distributor 120 away from the inlet 125a of the first flow channel 125. In other words, the inlet nozzle 130 and the outlet nozzle 140 are both arranged at the first end 120a of the distributor, and the second flow channel 126 and the third flow channel 127 are connected at the second end 120b of the distributor.

[0086] Specifically refer to Figure 4 , along the axial direction of the distributor 120, the inlet nozzle 130 is arranged at the first end 124a of the outer sleeve, and the outlet nozzle 140 is arranged at the first end 123a of the intermediate sleeve. After the cooling medium enters the third flow channel 127 through the inlet nozzle 130, it can flow to the second end 120b of the distributor along the axial direction of the distributor 120, and enter the second flow channel 126 through the opening of the second end 123b of the intermediate sleeve at the second end 120b of the distributor, and then flow to the outlet nozzle 140 along the axial direction of the distributor 120, and be discharged from the outlet nozzle 140, so that a complete cooling medium flow channel can be formed.

[0087] In order to reduce the size of the distributor 120 , at least a portion of the intermediate sleeve 123 is located in the outer sleeve 124 , and the discharge nozzle 140 is disposed on the portion of the intermediate sleeve 123 that extends beyond the outer sleeve 124 .

[0088] Preferably, along the axial direction of the distributor 120, the first end 123a of the intermediate sleeve can extend out of the outer sleeve 124, and the discharge pipe port 140 is arranged on the first end 123a of the intermediate sleeve, specifically referring to Figure 4 .

[0089] The nozzle 122 extends through the middle sleeve 123 and the outer sleeve 124 in a direction perpendicular to the axis of the distributor 120. On the one hand, it can avoid flow interference between the cracking raw material and the cooling medium. On the other hand, the cooling medium flowing through the third flow channel 127 and the second flow channel 126 can cool the nozzle 122 to a certain extent, preventing the heat carrier medium of about 1500°C from damaging the nozzle 122.

[0090] In addition, the distributor flange 150 is preferably arranged between the inlet pipe mouth 130 and the nozzle 122, so that after the distributor 120 is installed to the cylinder 110, the inlet pipe mouth 130 and the outlet pipe mouth 140 are both located outside the cylinder 110, so as to facilitate the inlet pipe mouth 130 and the outlet pipe mouth 140 to be connected to the supply device of the cooling medium (not shown).

[0091] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "parts" and "pieces" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may represent either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0092] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for enhancing the mixing of a heat medium and a cracking raw material, characterized in that: The device comprises: A cylinder, wherein a cylinder feed port is provided at the top of the cylinder for conveying one of the heat carrier medium and the cracking raw material; A distributor, the distributor is connected to the cylinder and extends into the interior of the cylinder, the distributor comprising: An inner sleeve, the inner sleeve comprising a first flow channel for conveying the other of the heat carrier medium and the cracking raw material; A plurality of nozzles, the nozzles are connected to the inner sleeve and are arranged at intervals along the axial direction of the distributor, the axes of the nozzles are parallel to the axis of the barrel feed port, and are used to spray out the material in the first flow channel; Wherein, along the direction perpendicular to the axis of the cylinder, the inner cross-section of the cylinder is configured as a hexagon, the axis of the distributor is parallel to at least one side of the hexagon, and wherein On the cross section of the cylinder, the spraying ranges of adjacent nozzles are tangent to or overlap each other.

2. The device for enhancing the mixing of heat medium and cracking raw material according to claim 1, characterized in that: The opening of the nozzle faces the barrel feed port.

3. The device for enhancing the mixing of heat medium and cracking raw material according to claim 1, characterized in that: At least one row of the distributors is arranged along the axial direction of the cylinder, and each row includes a plurality of the distributors arranged parallel to each other.

4. The device for enhancing the mixing of heat medium and cracking raw material according to claim 3, characterized in that: The openings of the inner sleeves of two adjacent distributors in the same row of distributors are arranged oppositely.

5. The device for enhancing the mixing of heat carrier medium and cracking raw material according to any one of claims 1 to 4, characterized in that: The distributor also includes: An intermediate sleeve, wherein the intermediate sleeve is sleeved on the outer side of the inner sleeve and forms a second flow channel with the inner sleeve, wherein the second flow channel is used to transport a cooling medium; An outer sleeve, wherein the outer sleeve is sleeved on the outside of the middle sleeve and forms a third flow channel with the middle sleeve, wherein the third flow channel is communicated with the second flow channel, and the nozzle extends through the middle sleeve and the outer sleeve.

6. The device for enhancing the mixing of heat carrier medium and cracking raw material according to claim 5, characterized in that: The device also includes an inlet pipe opening and an outlet pipe opening, wherein the inlet pipe opening is connected to the outer sleeve, and the outlet pipe opening is connected to the middle sleeve. Along the axial direction of the distributor, the inlet pipe opening and the outlet pipe opening are both arranged near the inlet of the first flow channel, and the second flow channel and the third flow channel are connected at an end of the distributor away from the inlet.

7. The device for enhancing the mixing of heat medium and cracking raw material according to claim 6, characterized in that: At least a portion of the intermediate sleeve is located in the outer sleeve, and the discharge pipe opening is arranged on a portion of the intermediate sleeve extending beyond the outer sleeve.

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