Inlet structure for constructing uniform reaction field and regulation and control method

Abstract

The invention discloses an inlet structure for constructing a uniform reaction field and a regulation and control method. The inlet structure comprises a gas supply regulation pipeline, a jet flow distribution body, a jet flow quantity regulation body, a jet flow angle regulation body and a mainstream reaction gas pipe, the gas supply adjusting pipeline comprises a main pipeline, a flow meter, an adjusting valve, a branch pipeline and a pressure gauge; the jet flow distribution body comprises an inner-layer gas inlet, an inner-layer gas distribution cavity, an inner-layer annular cavity, a jet flow body and a jet flow channel; the jet flow channel comprises an area increasing channel, a reducing channel and an inflow channel; the jet flow quantity adjusting body comprises an outer-layer gas inlet, an outer-layer gas distribution cavity, an outer-layer gas flow cavity and a flow blocking channel; in order to meet the requirements of efficient and uniform mixing and flexible regulation and control between axial jet flow and circumferential jet flow in a chemical reactor, the invention provides an inlet structure for constructing a uniform reaction field and a regulation and control method, and the inlet structure has the advantages of rapid mixing, uniform mixing, high reaction efficiency and online flexible regulation and control.

Description

Technical Field

[0001] The invention relates to a uniform reaction field inlet structure and a control method, which is applicable to the field of rapid mixing of reaction liquid inside a chemical reactor and utilization of efficient reaction technology. Background Art

[0002] In chemical reactors, the mixing of multiple jets is crucial to affecting the reaction process. The mixing degree of multiple jets directly affects the mass transfer and heat transfer efficiency of the reactants in the reactor, thereby affecting the reaction rate and product yield. Good jet mixing can ensure the uniform distribution of the reactants in the reactor and avoid the problem of reaction non-uniformity caused by excessive local concentration gradients. At the same time, effective jet mixing can improve the utilization rate of the reactor and reduce the formation of unreacted areas inside the reactor, thereby improving the overall efficiency of the reactor.

[0003] In addition, flexible control of the mixing of multiple jets is of great significance for the operation and optimization of chemical reactors. By flexibly adjusting the flow rate, speed, direction and other parameters of multiple jets, precise control of the reaction conditions inside the reactor can be achieved to meet the needs under different reaction conditions. For different reaction processes, the mixing method of multiple jets can be flexibly controlled to optimize the mixing uniformity and reaction efficiency of the reaction substances, thereby improving the economy and controllability of the reaction process.

[0004] Aiming at the multiphase flow reaction process inside a chemical reactor, the present invention proposes a structure for constructing a uniform reaction field inlet and a control method in order to meet the needs of efficient and uniform mixing and flexible regulation between axial jets and circumferential jets inside a chemical reactor. The structure has the advantages of rapid mixing, uniform mixing, high reaction efficiency and flexible online regulation. Summary of the invention

[0005] In order to meet the needs of efficient and uniform mixing and flexible regulation between axial jets and circumferential jets inside a chemical reactor, the present invention proposes a structure for constructing a uniform reaction field inlet and a regulation method, which has the advantages of rapid mixing, uniform mixing, high reaction efficiency and flexible online regulation.

[0006] A uniform reaction field inlet structure and control method, comprising a gas supply regulating pipeline (1), a jet distributor (2), a jet quantity regulating body (3), a jet angle regulating body (4) and a mainstream reaction gas pipe (5);

[0007] The gas supply regulating pipeline (1) comprises a main pipeline (11), a flow meter (12), a regulating valve (13), a branch pipeline (14), and a pressure gauge (15);

[0008] The main pipe (11) is used for the first reaction gas (liquid) to flow in; the number of the main pipe (11) is one;

[0009] The branch pipeline (14) is used to circulate the first reaction gas (liquid) flow; the number of the branch pipelines (14) is two; one end of the two branch pipelines (14) is commonly connected to the outlet of the main pipeline (11), and the two branch pipelines (14) are arranged in parallel;

[0010] One of the two branch pipelines (14) is connected to and communicates with the inner layer gas inlet (21); the other branch pipeline (14) is connected to and communicates with the outer layer gas inlet (31);

[0011] The flow meter (12) and the regulating valve (13) are arranged in sequence on the main pipeline (11) along the flow direction of the gas (liquid) flow; the flow meter (12) is used to measure the flow rate of the gas (liquid) flow in the main pipeline (11); the regulating valve (13) is used to regulate the flow rate of the gas (liquid) flow in the main pipeline (11);

[0012] On each of the branch pipelines (14), the regulating valve (13) and the flow meter (12) are sequentially arranged along the flow direction of the gas (liquid) flow; the flow meter (12) is used to measure the flow rate of the gas (liquid) flow in the branch pipeline (14); and the regulating valve (13) is used to adjust the flow rate of the gas (liquid) flow in the branch pipeline (14);

[0013] The pressure gauges (15) are respectively arranged on the side walls of the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32) for real-time monitoring of the pressure inside the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32);

[0014] The jet distributor (2) comprises an inner gas inlet (21), an inner gas distribution cavity (22), an inner annular cavity (23), a jet body (24), and a jet channel (25); wherein the jet channel (25) comprises an area enlargement channel (251), a diameter-changing channel (252), and an inflow channel (253);

[0015] The inner layer gas distribution cavity (22) is a circular axially symmetrical hollow cavity, the axially symmetrical cross-section is a right-angled trapezoidal cross-section, and the size of the right-angled trapezoidal cross-section gradually decreases from left to right;

[0016] The inner gas inlet (21) is a straight pipe for allowing a portion of the first reaction gas (liquid) to flow in; the inner gas inlet (21) is located outside the inner gas distribution chamber (22) and is connected and communicated with the outermost wall of the inner gas distribution chamber (22) in a vertical direction;

[0017] The inner ring cavity (23) is a circular annular channel, and is coaxially connected and communicated with the inner ring cavity (23) at the position of the smallest diameter on the rightmost end surface of the inner gas distribution cavity (22);

[0018] The jet body (24) is an annular flat plate body with a plurality of air flow channels arranged inside; the large diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the outlet end of the inner ring cavity (23); the jet body (24) is coaxially sleeved on the outside of the mainstream reaction gas pipe (5); the small diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the mainstream reaction gas pipe (5) arranged on the center side;

[0019] Ten jet channels (25) are evenly arranged inside the jet body (24) along the circumferential direction, and each jet channel (25) is arranged along the radial direction of the jet body (24); each jet channel (25) is capable of connecting the inner annular cavity (23) with the mainstream reaction gas pipe (5);

[0020] The jet channel (25) comprises an area increasing channel (251), a diameter reducing channel (252), and an inflow channel (253);

[0021] The inflow channel (253), the diameter-changing channel (252), and the area-increasing channel (251) are connected and communicated in sequence; the inflow channel (253) is a channel with a uniform cross-sectional area having a rectangular cross-section; the diameter-changing channel (252) is a channel with a rectangular cross-sectional area gradually increasing; the area-increasing channel (251) is composed of a channel with a uniform cross-sectional area having a rectangular cross-section and a channel with a rectangular cross-sectional area gradually decreasing, wherein the channel with a rectangular cross-sectional area gradually decreasing is characterized in that a side wall surface away from the jet angle adjusting body (4) is a vertical wall surface; a side wall surface close to the jet angle adjusting body (4) is an inclined wall surface, and the inclination angle of the inclined wall surface is equal to the inclination angle of the inclined surface of the inclined body in the distribution adjustment block (41);

[0022] The jet quantity adjusting body (3) comprises an outer layer gas inlet (31), an outer layer gas distribution cavity (32), an outer layer gas flow cavity (33), and a flow blocking channel (34);

[0023] The jet quantity regulating body (3) is integrally and coaxially sleeved on the outer side of the jet distributing body (2);

[0024] The outer gas distribution chamber (32) is a circular, axisymmetric hollow chamber, the axisymmetric cross-sectional shape of which gradually decreases in size from left to right;

[0025] The outer gas inlet (31) is a straight pipe for allowing a portion of the first reaction gas (liquid) to flow in; the outer gas inlet (31) is located outside the outer gas distribution chamber (32) and is connected and communicated with the outermost wall of the outer gas distribution chamber (32) in a vertical direction;

[0026] The outer airflow cavity (33) is an axisymmetric annular channel, and its axisymmetric cross-sectional shape is a step-type, which is entirely wrapped around the inner annular cavity (23) and the large-diameter end portion of the ejector body (24); the large-diameter end of the outer airflow cavity (33) is coaxially connected and communicated with the outer air distribution cavity (32) at the inner side of the small-diameter end of the outer air distribution cavity (32); the small-diameter end cover of the outer airflow cavity (33) is arranged at the large-diameter end portion of the ejector body (24);

[0027] On the right wall surface of the jet body (24), and in the covering area of ​​the outer airflow cavity (33), five flow-blocking channels (34) are evenly provided along the circumferential direction;

[0028] The blocking channel (34) is a gas (liquid) flow channel inclined from left to right toward the central axis of the mainstream reaction gas pipe (5), and its flow cross-sectional area is rectangular; five blocking channels (34) evenly arranged along the circumferential direction correspond to and are connected to one jet channel (25) along the radial direction, that is, the five blocking channels (34) correspond to five of the ten jet channels (25) at intervals;

[0029] The jet angle adjustment body (4) comprises a distribution adjustment block (41), a sealing ring (42), a connecting rod (43), a rotating guide cap (44), a threaded rod (45), an adjustment rod (46), a guide boss (47), and a fixing body (48);

[0030] The distribution adjustment block (41) is a solid block used to adjust the flow channel area on both sides thereof, and the number of the distribution adjustment blocks (41) is the same as the number of the jet distributors (2);

[0031] The distribution adjustment block (41) is formed by sequentially connecting a cone with a triangular cross section, a rectangular cross section body and a chamfered body; each of the distribution adjustment blocks (41) is arranged inside one of the area increasing channels (251);

[0032] The connecting rod (43) is a rod-shaped structure, one end of which passes through a side wall surface located on the jet body (24) and away from the inner layer gas inlet (21), and extends into the interior of the area-enhancing channel (251); the sealing ring (42) is provided at the position where the connecting rod (43) passes through the wall surface of the jet body (24), so as to achieve a sealing effect on the gas (liquid) flow inside the jet body (24);

[0033] One end of the connecting rod (43) extending into the area-enlarging channel (251) is a round rod of equal diameter and is vertically fixedly connected to the wall surface of the rectangular cross-section body in the distribution and adjustment block (41); one end of the connecting rod (43) not extending into the area-enlarging channel (251) is provided with two adjacent circular guide pieces, thereby forming an annular guide groove between the two adjacent circular guide pieces;

[0034] The fixing body (48) is a circular chamber structure; the fixing body (48) is integrally coaxially arranged on the outside of the connecting rod (43), one end of which is vertically fixedly connected to the outer wall surface of the jet body (24), and the other end of which is coaxially fixedly connected to the guide boss (47) at the center;

[0035] The guide boss (47) is a truncated cone structure, and a circular hole is coaxially opened at the center of the guide boss (47), and an internal thread is arranged on the inner wall of the circular hole;

[0036] The rotating guide cap (44) is a hollow cylinder with an opening on one side; one end of the opening of the rotating guide cap (44) is integrally sleeved in an annular guide groove at one end of the connecting rod (43); the rotating guide cap (44) is integrally located inside the fixed body (48);

[0037] The threaded rod (45) is a straight rod structure, and an external thread is provided on the outer wall surface of the threaded rod (45); the threaded rod (45) passes through the center hole of the guide boss (47), and the external thread of the threaded rod (45) matches the internal thread of the center hole in the guide boss (47); the end of the threaded rod (45) extending into the fixed body (48) is coaxial with the rotating guide cap (44) and is vertically fixed to the wall surface of the rotating guide cap (44);

[0038] The adjusting rod (46) is a rod-shaped structure, and the middle part of the adjusting rod (46) is vertically fixed to one end of the threaded rod (45) located outside the fixed body (48); by rotating the adjusting rod (46), the rotating guide cap (44) and the threaded rod (45) can be driven to rotate and move left and right at the same time; since the opening end of the rotating guide cap (44) is integrally sleeved and embedded in the annular guide groove at one end of the connecting rod (43), the two are in sliding fit, so rotating the adjusting rod (46) will further drive the connecting rod (43) and the distribution adjustment block (41) to move left and right, thereby playing a role in adjusting the gas (liquid) flow channel area on the left and right sides of the distribution adjustment block (41);

[0039] The mainstream reaction gas pipe (5) is a long straight pipe, which is used to circulate the second reaction gas (liquid) flow located at the center;

[0040] During the operation of the method for constructing a uniform reaction field inlet structure and control method described in the present invention:

[0041] The following is an example of constructing 10 first reaction gas (liquid) jets and the working conditions when the first reaction gas (liquid) stream is incident vertically. At this time, the regulating valve (13) disposed on the main pipeline (11) and on one of the branch pipelines (14) connected to the inner gas inlet (21) is in an open state, while the regulating valve (13) disposed on one of the branch pipelines (14) connected to the outer gas inlet (31) is in a closed state; at the same time, by rotating the regulating rod (46), the position of the distribution regulating block (41) is moved to the rightmost side close to the right inner wall of the jet channel (25), thereby reducing the channel area on the right side to 0;

[0042] The second reaction gas (liquid) flow participating in the chemical reaction flows in from the left side of the main reaction gas pipe (5) and flows out from the right side;

[0043] The first reaction gas (liquid) flow participating in the chemical reaction flows in from the main pipeline (11), and the first reaction gas (liquid) flow flows into the inner gas distribution chamber (22) through one of the branch pipelines (14) and the inner gas inlet (21), and then the first reaction gas (liquid) flow flows from left to right and flows into the inner annular chamber (23); in the above-mentioned flow process, since the cross-sectional size of the inner gas distribution chamber (22) gradually decreases from left to right, and the cross-sectional area of ​​the inner annular chamber (23) is greatly reduced instantly, it is beneficial to make the flow velocity and flow rate of the first reaction gas (liquid) flow flowing into the inner annular chamber (23) more uniform along the circumferential direction; then, the first reaction gas (liquid) flow flows into each of the jet channels (25), and is ejected at high speed from the vertical outlet, and is quickly mixed with the first reaction gas (liquid) flow located at the center to undergo a chemical reaction process.

[0044] The present invention discloses a method for constructing a uniform reaction field inlet structure and a method for controlling the number of jets as follows:

[0045] When it is necessary to reduce the number of first reaction gas (liquid) flow jets and increase the jet momentum, the regulating valve (13) located on one of the branch pipelines (14) connected to the outer gas inlet (31) is opened to allow a portion of the first reaction gas (liquid) flow to flow into the outer gas inlet (31); at the same time, this portion of the first reaction gas (liquid) flow will flow into the blocking channel (34) and will be radially sprayed from the inside to the outside into the inflow channel (253) connected thereto from the outlet of the blocking channel (34), and will meet head-on with the first reaction gas (liquid) flow located in the inner gas distribution chamber (22) and flowing into the inflow channel (253) and sprayed radially from the outside to the inside (such as Fig. 9 As shown), the gas (liquid) flow momentum between the two is offset, preventing the first reaction gas (liquid) flow located in the jet channel (25) from being sprayed into the mainstream reaction gas pipe (5) to participate in the reaction;

[0046] Since the number of the blocking channels (34) is 5, the blocking effect on 5 jets can be achieved, thereby achieving the purpose of adjusting the number of the first reaction gas (liquid) flow jets from 10 to 5. At the same time, since the flow rate of the entire first reaction gas (liquid) flow remains unchanged, when the number of jets decreases, the speed of the remaining 5 jets will be greatly increased;

[0047] In addition, the airflow rate inside each of the blocking channels (34) can be adjusted by adjusting the regulating valve (13), thereby adjusting the jet velocity at the outlet of the corresponding jet channel (25);

[0048] The present invention discloses a method for constructing a uniform reaction field inlet structure and a control method, and a method for adjusting the jet angle is as follows:

[0049] like Fig.10 As shown, when it is necessary to adjust the incident inclination angle of the first reaction gas (liquid) flow jet, the adjustment rod (46) is rotated, and the adjustment rod will eventually drive the distribution adjustment block (41) to move leftward, so that the cross-sectional area of ​​the gas (liquid) flow channel on the left side of the distribution adjustment block (41) gradually decreases, while the cross-sectional area of ​​the gas (liquid) flow channel on the right side of the distribution adjustment block (41) gradually increases; at this time, a part of the first reaction gas (liquid) flow flowing out of the left gas (liquid) flow channel will meet and mix with a part of the first reaction gas (liquid) flow flowing out of the right gas (liquid) flow channel, so that the directions of the two mixed jets change, and by adjusting the momentum ratio of the two gas flows, the jet angle can be adjusted between 0° (vertical direction) and α degrees; that is, when the area of ​​the left gas (liquid) flow channel is 0, the corresponding jet angle is α degrees, and when the area of ​​the right gas (liquid) flow channel is 0, the corresponding jet angle is 0° (vertical direction).

[0050] The beneficial effects of the present invention are:

[0051] (1) Adjust the number and speed of jets

[0052] The present invention can adjust the flow rate ratio of the gas (liquid) flow inside the jet channel and the blocking channel, adjust the number of jets of the circumferential jet and the corresponding jet velocity, thereby adjusting the rapid mixing and uniform mixing degree between the jets through online jet mixing optimization;

[0053] (2) Adjust the jet incident inclination angle

[0054] For the gas (liquid) flow channels located on the left and right sides of the distribution and adjustment block, a part of the first reaction gas (liquid) flow flowing out of the left gas (liquid) flow channel will meet and mix with a part of the first reaction gas (liquid) flow flowing out of the right gas (liquid) flow channel, so that the directions of the two mixed jets change, and by adjusting the momentum ratio of the two airflows, the jet angle can be adjusted between 0° (vertical direction) and α degrees; that is, when the area of ​​the left gas (liquid) flow channel is 0, the corresponding jet angle is α, and when the area of ​​the right gas (liquid) flow channel is 0, the corresponding jet angle is 0° (vertical direction).

[0055] (3) Online flexible control of jet mixing degree and chemical reaction process

[0056] The present invention can flexibly regulate the number and speed of jets, as well as the jet incident angle online by regulating the air flow rate and the position of the distribution regulating block without shutting down the reactor and ensuring the normal operation of the reactor, and has the advantages of online flexible regulation and high reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A side view of a uniform reaction field inlet structure and a control method according to the present invention.

[0058] Figure 2 This is an AA cross-sectional view of the uniform reaction field inlet structure and control method of the present invention.

[0059] Figure 3 The D-direction view of the uniform reaction field inlet structure and control method of the present invention.

[0060] Figure 4 The E-direction view of the uniform reaction field inlet structure and control method constructed in the present invention.

[0061] Figure 5 The BB cross-sectional view of the uniform reaction field inlet structure and control method of the present invention.

[0062] Figure 6 The CC cross-sectional view of the uniform reaction field inlet structure and control method of the present invention.

[0063] Figure 7 A partial enlarged view of the incident angle adjustment member for constructing a uniform reaction field entrance structure and control method of the present invention.

[0064] Figure 8 A schematic diagram of the airflow and mixing process for constructing a uniform reaction field inlet structure and a control method according to the present invention.

[0065] Fig. 9 A schematic diagram of airflow flow when reducing the number of jets in constructing a uniform reaction field inlet structure and a control method of the present invention.

[0066] Fig.10 A schematic diagram of airflow flow when adjusting the incident angle in the present invention to construct a uniform reaction field inlet structure and a control method.

[0067] Description of Reference Numerals

[0068] 1-Gas supply regulating pipeline

[0069] 11- Main Road

[0070] 12-Flow meter

[0071] 13-Regulating valve

[0072] 14-Branch pipeline

[0073] 15- Pressure gauge

[0074] 2-Jet distributor

[0075] 21-Inner layer air inlet

[0076] 22-Inner gas distribution chamber

[0077] 23-Inner ring cavity

[0078] 24-Ejection

[0079] 25-Jet channel

[0080] 251-Area Enlargement Channel

[0081] 252-variable channel

[0082] 253-Inflow channel

[0083] 3-Jet quantity regulator

[0084] 31-Outer air inlet

[0085] 32-Outer gas distribution chamber

[0086] 33-Outer airflow cavity

[0087] 34-Blocking channel

[0088] 4-Jet angle adjustment body

[0089] 41-Allocation adjustment block

[0090] 42-Seal ring

[0091] 43-Connecting rod

[0092] 44-Rotary guide cap

[0093] 45-Threaded Rod

[0094] 46-Adjustment rod

[0095] 47-Guide boss

[0096] 48-Fixed body

[0097] 5- Mainstream reaction trachea DETAILED DESCRIPTION

[0098] In order to clarify the purpose, technical solution and advantages of the present invention, a uniform reaction field inlet structure and control method of the present invention are further described in detail through the following embodiments. It should be pointed out that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0099] like Figures 1 to 10 As shown, a uniform reaction field inlet structure and control method are provided, comprising a gas supply regulating pipeline (1), a jet distributor (2), a jet quantity regulating body (3), a jet angle regulating body (4) and a mainstream reaction gas pipe (5);

[0100] The gas supply regulating pipeline (1) comprises a main pipeline (11), a flow meter (12), a regulating valve (13), a branch pipeline (14), and a pressure gauge (15);

[0101] The main pipe (11) is used for the first reaction gas (liquid) to flow in; the number of the main pipe (11) is one;

[0102] The branch pipeline (14) is used to circulate the first reaction gas (liquid) flow; the number of the branch pipelines (14) is two; one end of the two branch pipelines (14) is commonly connected to the outlet of the main pipeline (11), and the two branch pipelines (14) are arranged in parallel;

[0103] One of the two branch pipelines (14) is connected to and communicates with the inner layer gas inlet (21); the other branch pipeline (14) is connected to and communicates with the outer layer gas inlet (31);

[0104] The flow meter (12) and the regulating valve (13) are arranged in sequence on the main pipeline (11) along the flow direction of the gas (liquid) flow; the flow meter (12) is used to measure the flow rate of the gas (liquid) flow in the main pipeline (11); the regulating valve (13) is used to regulate the flow rate of the gas (liquid) flow in the main pipeline (11);

[0105] On each of the branch pipelines (14), the regulating valve (13) and the flow meter (12) are sequentially arranged along the flow direction of the gas (liquid) flow; the flow meter (12) is used to measure the flow rate of the gas (liquid) flow in the branch pipeline (14); and the regulating valve (13) is used to adjust the flow rate of the gas (liquid) flow in the branch pipeline (14);

[0106] The pressure gauges (15) are respectively arranged on the side walls of the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32) for real-time monitoring of the pressure inside the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32);

[0107] The jet distributor (2) comprises an inner gas inlet (21), an inner gas distribution cavity (22), an inner annular cavity (23), a jet body (24), and a jet channel (25); wherein the jet channel (25) comprises an area enlargement channel (251), a diameter-changing channel (252), and an inflow channel (253);

[0108] The inner layer gas distribution cavity (22) is a circular axially symmetrical hollow cavity, the axially symmetrical cross-section is a right-angled trapezoidal cross-section, and the size of the right-angled trapezoidal cross-section gradually decreases from left to right;

[0109] The inner gas inlet (21) is a straight pipe for allowing a portion of the first reaction gas (liquid) to flow in; the inner gas inlet (21) is located outside the inner gas distribution chamber (22) and is connected and communicated with the outermost wall of the inner gas distribution chamber (22) in a vertical direction;

[0110] The inner ring cavity (23) is a circular annular channel, and is coaxially connected and communicated with the inner ring cavity (23) at the position of the smallest diameter on the rightmost end surface of the inner gas distribution cavity (22);

[0111] The jet body (24) is an annular flat plate body with a plurality of air flow channels arranged inside; the large diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the outlet end of the inner ring cavity (23); the jet body (24) is coaxially sleeved on the outside of the mainstream reaction gas pipe (5); the small diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the mainstream reaction gas pipe (5) arranged on the center side;

[0112] Ten jet channels (25) are evenly arranged inside the jet body (24) along the circumferential direction, and each jet channel (25) is arranged along the radial direction of the jet body (24); each jet channel (25) is capable of connecting the inner annular cavity (23) with the mainstream reaction gas pipe (5);

[0113] The jet channel (25) comprises an area increasing channel (251), a diameter reducing channel (252), and an inflow channel (253);

[0114] The inflow channel (253), the diameter-changing channel (252), and the area-increasing channel (251) are connected and communicated in sequence; the inflow channel (253) is a channel with a uniform cross-sectional area having a rectangular cross-section; the diameter-changing channel (252) is a channel with a rectangular cross-sectional area gradually increasing; the area-increasing channel (251) is composed of a channel with a uniform cross-sectional area having a rectangular cross-section and a channel with a rectangular cross-sectional area gradually decreasing, wherein the channel with a rectangular cross-sectional area gradually decreasing is characterized in that a side wall surface away from the jet angle adjusting body (4) is a vertical wall surface; a side wall surface close to the jet angle adjusting body (4) is an inclined wall surface, and the inclination angle of the inclined wall surface is equal to the inclination angle of the inclined surface of the inclined body in the distribution adjustment block (41);

[0115] The jet quantity adjusting body (3) comprises an outer layer gas inlet (31), an outer layer gas distribution cavity (32), an outer layer gas flow cavity (33), and a flow blocking channel (34);

[0116] The jet quantity regulating body (3) is integrally and coaxially sleeved on the outer side of the jet distributing body (2);

[0117] The outer gas distribution chamber (32) is a circular, axisymmetric hollow chamber, the axisymmetric cross-sectional shape of which gradually decreases in size from left to right;

[0118] The outer gas inlet (31) is a straight pipe for allowing a portion of the first reaction gas (liquid) to flow in; the outer gas inlet (31) is located outside the outer gas distribution chamber (32) and is connected and communicated with the outermost wall of the outer gas distribution chamber (32) in a vertical direction;

[0119] The outer airflow cavity (33) is an axisymmetric annular channel, and its axisymmetric cross-sectional shape is a step-type, which is entirely wrapped around the inner annular cavity (23) and the large-diameter end portion of the ejector body (24); the large-diameter end of the outer airflow cavity (33) is coaxially connected and communicated with the outer air distribution cavity (32) at the inner side of the small-diameter end of the outer air distribution cavity (32); the small-diameter end cover of the outer airflow cavity (33) is arranged at the large-diameter end portion of the ejector body (24);

[0120] On the right wall surface of the jet body (24), and in the covering area of ​​the outer airflow cavity (33), five flow-blocking channels (34) are evenly provided along the circumferential direction;

[0121] The blocking channel (34) is a gas (liquid) flow channel inclined from left to right toward the central axis of the mainstream reaction gas pipe (5), and its flow cross-sectional area is rectangular; five blocking channels (34) evenly arranged along the circumferential direction correspond to and are connected to one jet channel (25) along the radial direction, that is, the five blocking channels (34) correspond to five of the ten jet channels (25) at intervals;

[0122] The jet angle adjustment body (4) comprises a distribution adjustment block (41), a sealing ring (42), a connecting rod (43), a rotating guide cap (44), a threaded rod (45), an adjustment rod (46), a guide boss (47), and a fixing body (48);

[0123] The distribution adjustment block (41) is a solid block used to adjust the flow channel area on both sides thereof, and the number of the distribution adjustment blocks (41) is the same as the number of the jet distributors (2);

[0124] The distribution adjustment block (41) is formed by sequentially connecting a cone with a triangular cross section, a rectangular cross section body and a chamfered body; each of the distribution adjustment blocks (41) is arranged inside one of the area increasing channels (251);

[0125] The connecting rod (43) is a rod-shaped structure, one end of which passes through a side wall surface located on the jet body (24) and away from the inner layer gas inlet (21), and extends into the interior of the area-enhancing channel (251); the sealing ring (42) is provided at the position where the connecting rod (43) passes through the wall surface of the jet body (24), so as to achieve a sealing effect on the gas (liquid) flow inside the jet body (24);

[0126] One end of the connecting rod (43) extending into the area-enlarging channel (251) is a round rod of equal diameter and is vertically fixedly connected to the wall surface of the rectangular cross-section body in the distribution and adjustment block (41); one end of the connecting rod (43) not extending into the area-enlarging channel (251) is provided with two adjacent circular guide pieces, thereby forming an annular guide groove between the two adjacent circular guide pieces;

[0127] The fixing body (48) is a circular chamber structure; the fixing body (48) is integrally coaxially arranged on the outside of the connecting rod (43), one end of which is vertically fixedly connected to the outer wall surface of the jet body (24), and the other end of which is coaxially fixedly connected to the guide boss (47) at the center;

[0128] The guide boss (47) is a truncated cone structure, and a circular hole is coaxially opened at the center of the guide boss (47), and an internal thread is arranged on the inner wall of the circular hole;

[0129] The rotating guide cap (44) is a hollow cylinder with an opening on one side; one end of the opening of the rotating guide cap (44) is integrally sleeved in an annular guide groove at one end of the connecting rod (43); the rotating guide cap (44) is integrally located inside the fixed body (48);

[0130] The threaded rod (45) is a straight rod structure, and an external thread is provided on the outer wall surface of the threaded rod (45); the threaded rod (45) passes through the center hole of the guide boss (47), and the external thread of the threaded rod (45) matches the internal thread of the center hole in the guide boss (47); the end of the threaded rod (45) extending into the fixed body (48) is coaxial with the rotating guide cap (44) and is vertically fixed to the wall surface of the rotating guide cap (44);

[0131] The adjusting rod (46) is a rod-shaped structure, and the middle part of the adjusting rod (46) is vertically fixed to one end of the threaded rod (45) located outside the fixed body (48); by rotating the adjusting rod (46), the rotating guide cap (44) and the threaded rod (45) can be driven to rotate and move left and right at the same time; since the opening end of the rotating guide cap (44) is integrally sleeved and embedded in the annular guide groove at one end of the connecting rod (43), the two are in sliding fit, so rotating the adjusting rod (46) will further drive the connecting rod (43) and the distribution adjustment block (41) to move left and right, thereby playing a role in adjusting the gas (liquid) flow channel area on the left and right sides of the distribution adjustment block (41);

[0132] The mainstream reaction gas pipe (5) is a long straight pipe, which is used for circulating the second reaction gas (liquid) flow located at the center.

[0133] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A structure for constructing a uniform reaction field inlet, characterized in that: The invention comprises an air supply regulating pipeline (1), a jet distributor (2), a jet quantity regulating body (3), a jet angle regulating body (4) and a mainstream reaction gas pipe (5); the air supply regulating pipeline (1) is respectively connected to the jet distributor (2) and the jet quantity regulating body (3); the jet angle regulating body (4) is arranged on the jet quantity regulating body (3), and the mainstream reaction gas pipe (5) is arranged on the jet distributor (2); The gas supply regulating pipeline (1) comprises a main pipeline (11), a flow meter (12), a regulating valve (13), a branch pipeline (14), and a pressure gauge (15); The jet distributor (2) comprises an inner gas inlet (21), an inner gas distribution cavity (22), an inner annular cavity (23), a jet body (24), and a jet channel (25); wherein the jet channel (25) comprises an area enlargement channel (251), a diameter-changing channel (252), and an inflow channel (253); The jet quantity adjusting body (3) comprises an outer layer gas inlet (31), an outer layer gas distribution cavity (32), an outer layer gas flow cavity (33), and a flow blocking channel (34); The jet angle adjustment body (4) comprises a distribution adjustment block (41), a sealing ring (42), a connecting rod (43), a rotating guide cap (44), a threaded rod (45), an adjustment rod (46), a guide boss (47), and a fixing body (48); The mainstream reaction gas pipe (5) is a long straight pipe, which is used to circulate the direct current reaction gas flow located at the center.

2. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The main pipe (11) is used for the first reaction gas / liquid flow to flow in; the number of the main pipe (11) is one; The branch pipeline (14) is used for circulating the first reaction gas / liquid flow; the number of the branch pipelines (14) is two; one end of the two branch pipelines (14) is commonly connected to the outlet of the main pipeline (11), and the two branch pipelines (14) are arranged in parallel; One of the two branch pipelines (14) is connected to and communicates with the inner layer gas inlet (21); the other branch pipeline (14) is connected to and communicates with the outer layer gas inlet (31); The flow meter (12) and the regulating valve (13) are arranged in sequence on the main pipeline (11) along the flow direction of the gas / liquid flow; the flow meter (12) is used to measure the flow rate of the gas / liquid flow in the main pipeline (11); the regulating valve (13) is used to regulate the flow rate of the gas / liquid flow in the main pipeline (11); On each of the branch pipelines (14), the regulating valve (13) and the flow meter (12) are sequentially arranged along the flow direction of the gas / liquid flow; the flow meter (12) is used to measure the flow rate of the gas / liquid flow in the branch pipeline (14); and the regulating valve (13) is used to adjust the flow rate of the gas / liquid flow in the branch pipeline (14); The pressure gauges (15) are respectively arranged on the side walls of the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32) for real-time monitoring of the pressure inside the inner layer gas distribution chamber (22) and the outer layer gas distribution chamber (32).

3. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The inner layer gas distribution cavity (22) is a circular axially symmetrical hollow cavity, the axially symmetrical cross-section is a right-angled trapezoidal cross-section, and the size of the right-angled trapezoidal cross-section gradually decreases from left to right; The inner gas inlet (21) is a straight pipe for allowing a portion of the first reaction gas / liquid flow to flow in; the inner gas inlet (21) is located outside the inner gas distribution chamber (22) and is connected and communicated with the outermost wall of the inner gas distribution chamber (22) in a vertical direction; The inner ring cavity (23) is a circular annular channel, and is coaxially connected and communicated with the inner ring cavity (23) at the position of the smallest diameter on the rightmost end surface of the inner gas distribution cavity (22); The jet body (24) is an annular flat plate body with a plurality of air flow channels arranged inside; the large diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the outlet end of the inner ring cavity (23); the jet body (24) is coaxially sleeved on the outside of the mainstream reaction gas pipe (5); the small diameter end of the jet body (24) is coaxially and vertically connected to and communicated with the mainstream reaction gas pipe (5) arranged on the center side; Ten jet channels (25) are evenly arranged inside the jet body (24) along the circumferential direction, and each jet channel (25) is arranged along the radial direction of the jet body (24); each jet channel (25) is capable of connecting the inner annular cavity (23) with the mainstream reaction gas pipe (5); The jet channel (25) comprises an area increasing channel (251), a diameter reducing channel (252), and an inflow channel (253); The inflow channel (253), the diameter-changing channel (252), and the area-increasing channel (251) are connected and communicated in sequence; the inflow channel (253) is a channel with a uniform cross-sectional area having a rectangular cross-section; the diameter-changing channel (252) is a channel with a rectangular cross-section and a gradually increasing cross-sectional area; the area-increasing channel (251) is composed of a channel with a uniform cross-sectional area having a rectangular cross-section and a channel with a gradually decreasing cross-sectional area having a rectangular cross-section, wherein the channel with a gradually decreasing cross-sectional area having a rectangular cross-section is characterized in that a side wall surface away from the jet angle adjustment body (4) is a vertical wall surface; and a side wall surface close to the jet angle adjustment body (4) is an inclined wall surface, and the inclination angle of the inclined wall surface is equal to the inclination angle of the inclined surface of the inclined surface body in the distribution adjustment block (41).

4. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The jet quantity regulating body (3) is integrally and coaxially sleeved on the outer side of the jet distributing body (2); The outer gas distribution chamber (32) is a circular, axisymmetric hollow chamber, the axisymmetric cross-sectional shape of which gradually decreases in size from left to right; The outer gas inlet (31) is a straight pipe for allowing a portion of the first reaction gas / liquid flow to flow in; the outer gas inlet (31) is located outside the outer gas distribution chamber (32) and is connected and communicated with the outermost wall of the outer gas distribution chamber (32) in a vertical direction; The outer airflow cavity (33) is an axisymmetric annular channel, and its axisymmetric cross-sectional shape is a step-type, which is entirely wrapped around the inner annular cavity (23) and the large-diameter end portion of the ejector body (24); the large-diameter end of the outer airflow cavity (33) is coaxially connected and communicated with the outer air distribution cavity (32) at the inner side of the small-diameter end of the outer air distribution cavity (32); the small-diameter end cover of the outer airflow cavity (33) is arranged at the large-diameter end portion of the ejector body (24); On the right wall surface of the jet body (24), and in the covering area of ​​the outer airflow cavity (33), five flow-blocking channels (34) are evenly provided along the circumferential direction; The blocking channel (34) is a gas / liquid flow channel inclined from left to right toward the central axis of the mainstream reaction gas pipe (5), and its flow cross-sectional area is rectangular; five blocking channels (34) uniformly arranged along the circumference correspond to and are connected to one of the jet channels (25) along the radial direction, that is, the five blocking channels (34) correspond to five of the ten jet channels (25) at intervals.

5. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The distribution adjustment block (41) is a solid block used to adjust the flow channel area on both sides thereof, and the number of the distribution adjustment blocks (41) is the same as the number of the jet distribution bodies (2); The distribution adjustment block (41) is formed by sequentially connecting a cone with a triangular cross section, a rectangular cross section body and a chamfered body; each of the distribution adjustment blocks (41) is arranged inside one of the area increasing channels (251); The connecting rod (43) is a rod-shaped structure, one end of which passes through a side wall surface located on the jet body (24) and away from the inner layer gas inlet (21), and extends into the interior of the area-enhancing channel (251); the sealing ring (42) is provided at the position where the connecting rod (43) passes through the wall surface of the jet body (24), so as to achieve a sealing effect on the gas / liquid flow inside the jet body (24); One end of the connecting rod (43) extending into the area-enlarging channel (251) is a round rod of equal diameter and is vertically fixedly connected to the wall surface of the rectangular cross-section body in the distribution and adjustment block (41); one end of the connecting rod (43) not extending into the area-enlarging channel (251) is provided with two adjacent circular guide pieces, thereby forming an annular guide groove between the two adjacent circular guide pieces; The fixing body (48) is a circular chamber structure; the fixing body (48) is integrally coaxially arranged on the outside of the connecting rod (43), one end of which is vertically fixedly connected to the outer wall surface of the jet body (24), and the other end of which is coaxially fixedly connected to the guide boss (47) at the center; The guide boss (47) is a truncated cone structure, and a circular hole is coaxially opened at the center of the guide boss (47), and an internal thread is arranged on the inner wall of the circular hole.

6. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The rotating guide cap (44) is a hollow cylinder with an opening on one side; one end of the opening of the rotating guide cap (44) is integrally sleeved in an annular guide groove at one end of the connecting rod (43); the rotating guide cap (44) is integrally located inside the fixed body (48); The threaded rod (45) is a straight rod structure, and an external thread is provided on the outer wall surface of the threaded rod (45); the threaded rod (45) passes through the center hole of the guide boss (47), and the external thread of the threaded rod (45) matches the internal thread of the center hole in the guide boss (47); the end of the threaded rod (45) extending into the fixed body (48) is coaxial with the rotating guide cap (44) and is vertically fixed to the wall surface of the rotating guide cap (44); The adjusting rod (46) is a rod-shaped structure, and the middle part of the adjusting rod (46) is vertically fixed to one end of the threaded rod (45) located outside the fixed body (48); by rotating the adjusting rod (46), the rotating guide cap (44) and the threaded rod (45) are driven to rotate and move left and right at the same time. Since the opening end of the rotating guide cap (44) is integrally sleeved and embedded in the annular guide groove at one end of the connecting rod (43), the two are in a sliding fit. Therefore, rotating the adjusting rod (46) will further drive the connecting rod (43) and the distribution adjustment block (41) to move left and right, thereby playing a role in adjusting the gas / liquid flow channel area on the left and right sides of the distribution adjustment block (41).

7. A uniform reaction field inlet structure as claimed in claim 1, characterized in that: The mainstream reaction gas pipe (5) is a long straight pipe, which is used for circulating the second reaction gas / liquid flow located in the center.

8. A control method for constructing a uniform reaction field inlet structure using any one of claims 1 to 7, characterized in that: The following methods are included to adjust the number of jets: When it is necessary to reduce the number of first reaction gas / liquid jets and increase the jet momentum, the regulating valve (13) located on one of the branch pipelines (14) connected to the outer gas inlet (31) is opened to allow a portion of the first reaction gas / liquid to flow into the outer gas inlet (31); at the same time, this portion of the first reaction gas / liquid that has flowed in will flow into the blocking channel (34) and will be radially sprayed from the inside to the outside into the inflow channel (253) connected thereto from the outlet of the blocking channel (34), and will meet head-on with the first reaction gas / liquid that is located in the inner gas distribution chamber (22) and flows into the inflow channel (253) and is sprayed radially from the outside to the inside, so that the gas / liquid momentum between the two is offset, thereby preventing the first reaction gas / liquid that is located in the jet channel (25) from being sprayed into the mainstream reaction gas pipe (5) to participate in the reaction; The number of the blocking channels (34) is 5, which can achieve a blocking effect on 5 jets, thereby adjusting the number of the first reaction gas / liquid flow jets from 10 to 5. At the same time, since the flow rate of the entire first reaction gas / liquid flow remains unchanged, when the number of jets decreases, the speed of the remaining 5 jets will increase significantly; In addition, by adjusting the regulating valve (13), the airflow rate inside each of the blocking channels (34) is adjusted, thereby adjusting the jet velocity at the outlet of the corresponding jet channel (25).

9. The control method for constructing a uniform reaction field inlet structure according to claim 8, characterized in that: The following methods are included for adjusting the jet angle: When it is necessary to adjust the incident inclination angle of the first reaction gas / liquid flow jet, the adjustment rod (46) is rotated, and the adjustment rod will eventually drive the distribution adjustment block (41) to move leftward, so that the cross-sectional area of ​​the gas / liquid flow channel on the left side of the distribution adjustment block (41) gradually decreases, while the cross-sectional area of ​​the gas / liquid flow channel on the right side of the distribution adjustment block (41) gradually increases; at this time, a part of the first reaction gas / liquid flow flowing out of the left gas / liquid flow channel will meet and mix with a part of the first reaction gas / liquid flow flowing out of the right gas / liquid flow channel, so that the directions of the two mixed jets change, and by adjusting the momentum ratio of the two gas flows, the jet angle is adjusted between 0° vertical direction and α degree; that is, when the area of ​​the left gas / liquid flow channel is 0, the corresponding jet angle is α degree, and when the area of ​​the right gas / liquid flow channel is 0, the corresponding jet angle is 0° vertical direction.

Images