An adjustable cyclone and burner therefor

Abstract

The utility model discloses an adjustable cyclone and its combustor, this adjustable cyclone includes: regulator, air tube, vane subassembly, wherein the vane subassembly includes: vane, inner baffle ring, outer baffle ring, connecting rod piece, driven ring, the both sides of vane are respectively with the axle joint of inner baffle ring, outer baffle ring, and around inner baffle ring, outer baffle ring radial even distribution is arranged to define the cyclone air duct, be equipped with the linkage mouth on the driven ring, each connecting rod piece one end is connected with the axle joint end of vane, and the other end is equipped with the roller to through linkage mouth and driven ring matching connection linkage, the air tube is connected with inner baffle ring to communicate with cyclone air duct, the regulating end of regulator is set up in the air tube, and its linkage end passes through the air tube and is connected with at least one connecting rod piece to rotate and drive the connecting rod piece linkage driven ring, drive each vane synchronous rotation opening and closing. By this support according to the working condition control vane opening angle adjustment medium flow rate that enters to adapt the combustor to reach the best use requirement.

Description

Technical Field

[0001] This utility model relates to burner technology, and more particularly to an adjustable swirler for regulating the swirling flow inside a burner and the burner thereof. Background Technology

[0002] Currently, in the fields of petrochemicals, coal chemicals, and sulfur recovery, traditional burner cyclones have multi-dimensional limitations due to their "fixed flow area" design characteristics, making them unsuitable for complex operating conditions and environmental protection requirements. These problems manifest in several aspects:

[0003] Firstly, its optimal operating range is narrow and its adaptability to operating conditions is poor. Since its medium flow rate depends entirely on the upstream medium of the system, it can only maintain a good state under specific loads (such as the design rated load). Once it is under low or high load conditions, it deviates from the optimal operating range and cannot meet the requirements of combustion efficiency and operational stability.

[0004] Secondly, environmental and safety requirements are not met. Due to the fixed circulation area, it is impossible to adjust the air input and mixing state according to load changes: at low loads, excessive air may lead to a decrease in thermal efficiency, or insufficient air may lead to incomplete combustion of fuel, producing pollutants such as CO and particulate matter; at high loads, an imbalance in the air ratio may cause unstable combustion, or even safety hazards (such as local high temperature, backfire, etc.), thus making it difficult to meet increasingly stringent pollutant emission restrictions.

[0005] Third, key parameters are not adjustable, making it impossible to optimize combustion. Since core parameters such as blade angle and medium flow rate are fixed, they cannot be dynamically adjusted according to fuel type and combustion requirements, resulting in poor mixing of fuel with air (or exhaust gas, acid gas), insufficient flame stability, and further exacerbating the problems of low combustion efficiency and excessive pollutant emissions.

[0006] Fourth, the maintenance cost is high, which affects the continuous operation of the equipment. If the operating parameters of some traditional hydrocyclones need to be changed (such as to adapt to different fuels or loads), the machine must be stopped and the parts (such as blades of different angles and flow channel components of different diameters) must be disassembled and replaced. This not only causes the equipment to be interrupted, but also increases the cost of manual maintenance and downtime losses, making it extremely inflexible.

[0007] Therefore, how to design an adjustable cyclone separator that can support adjusting the flow rate of the incoming medium according to the operating conditions to adapt to the burner and achieve the best performance requirements is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] Therefore, the main objective of this invention is to provide an adjustable cyclone separator and its burner to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, according to one aspect of the present invention, an adjustable cyclone separator is provided, comprising: a regulator, a duct, and a blade assembly, wherein the blade assembly comprises: blades, an inner retaining ring, an outer retaining ring, a connecting rod, and a driven ring. The blades are axially connected to the inner and outer retaining rings on both sides and are evenly distributed radially around the inner and outer retaining rings to define a cyclone channel. The driven ring is provided with a linkage port. One end of each connecting rod is connected to the axial end of the blade, and the other end is provided with a roller to engage and move with the driven ring through the linkage port. The duct is connected to the inner retaining ring to communicate with the cyclone channel. The regulating end of the regulator is located outside the duct, and its linkage end passes through the duct and is connected to at least one connecting rod to rotate and drive the connecting rod to move the driven ring, thereby driving the blades to rotate and open and close synchronously.

[0010] Preferably, the regulator includes: an adjusting handle, a bearing seat, and a connecting shaft, wherein a flange cover is provided on the outside of the air duct, the bearing seat is fixed on the flange cover, the adjusting handle is connected to the connecting shaft via the bearing seat, and the connecting end of the connecting shaft passes through the air duct and is connected to at least one connecting rod.

[0011] Preferably, one end of the shaft seat is provided with a limiting plate, one end of the adjusting handle is provided with a pointer, and the limiting plate is provided with a limiting protrusion to limit the rotational stroke of the pointer.

[0012] Preferably, one end of the bearing seat is provided with a limiting plate, and a scale groove is provided at a first position on the limiting plate. The adjusting handle includes a main handle, a secondary handle, and an elastic element. The main handle is connected to the connecting shaft via the bearing seat, and one end of the secondary handle is provided with a locking tooth. The main handle and the secondary handle are scissor-shapedly connected. The handles of both are elastically clamped by the elastic element, which supports the secondary handle locking tooth to be inserted into the scale groove after the main handle rotates.

[0013] Preferably, a scale plate is provided at the second position of the limiting plate, and a pointer is provided at one end of the main handle to point to the scale plate.

[0014] Preferably, the limiting disk is provided with a limiting protrusion to limit the rotational travel of the pointer.

[0015] Preferably, the regulator further includes: a gland and a packing packing, wherein the flange cover is provided with a countersunk hole, the packing packing is filled into the countersunk hole and sleeved with the connecting shaft, and the gland is sleeved on the shaft seat and connected with the flange cover to compact and seal the countersunk hole.

[0016] Preferably, the blades are provided with guide walls at both ends, which have oppositely folded edges.

[0017] To achieve the above objectives, according to another aspect of the present invention, a burner is also provided, which includes: an adjustable swirler as described in any of the above descriptions.

[0018] The adjustable cyclone separator and its burner provided by this invention feature an innovative linkage structure between the regulator and the blade assembly. This ingenious design allows the regulator to directly control the blade rotation angle from outside the duct, thereby altering the flow area of ​​the cyclone duct. This design enables dynamic adjustment of the cyclone separator's operating parameters without disassembly or shutdown. Its core advantage lies in its ability to adjust in real-time according to the actual needs of different load conditions, precisely matching the required medium flow rate of the burner. It optimizes the air input and gas-fuel mixing state in real-time with load changes, effectively promoting complete fuel combustion. This significantly reduces emissions of pollutants such as CO and particulate matter while ensuring the burner maintains optimal operating conditions under various circumstances. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the adjustable cyclone separator of this utility model;

[0021] Figure 2 This is a perspective view of the overall structure of the adjustable cyclone of this utility model;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the regulator and blade assembly of the adjustable cyclone of this utility model;

[0023] Figure 4 This is a schematic diagram of the regulator structure of the adjustable cyclone of this utility model;

[0024] Figure 5 This is a schematic diagram of the adjusting handle in the regulator of the adjustable cyclone of this utility model;

[0025] Figure 6 This is a schematic diagram of the regulator assembly structure of the adjustable cyclone of this utility model;

[0026] Figure 7 This is a half-sectional schematic diagram of the adjustable cyclone separator of this utility model;

[0027] Figure 8 This is a perspective view of the fully closed state of the adjustable cyclone of this utility model;

[0028] Figure 9 This is a perspective view of the fully open state of the adjustable cyclone separator of this utility model.

[0029] Explanation of reference numerals in the attached figures

[0030] Regulator 1, air duct 2, blade assembly 3, swirl duct 4, adjusting handle 11, bearing seat 12, connecting shaft 13, limit plate 14, pointer 15, limit protrusion 16, scale groove 17, gland 18, packing packing 19, flange cover 21, countersunk hole 22, blade 31, inner retaining ring 32, outer retaining ring 33, connecting rod 34, driven ring 35, main handle 111, secondary handle 112, spring 113, retaining tooth 114, scale plate 141, guide wall 311, connecting port 351, roller 341. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "lay out," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances and in conjunction with existing technology. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. One or more of the components shown in the figures may be necessary or not, and the relative positional relationships between the components shown in the figures can be adjusted according to actual needs.

[0037] In order to support adjustments to the incoming medium flow rate according to operating conditions, so as to adapt the burner to achieve optimal operating requirements, such as Figures 1 to 7 As shown, this utility model provides an adjustable cyclone separator, an example of which includes: a regulator 1, a wind tunnel 2, and a blade assembly 3.

[0038] Among them, such as Figures 1 to 3 As shown, the blade assembly 3 in this example includes: blades 31, inner baffle ring 32, outer baffle ring 33, connecting rods 34, and driven ring 35. The blades 31 are provided with rotating shafts on both sides to be axially connected to the inner and outer baffle rings 32 and 33 respectively, and are evenly distributed radially around the inner and outer baffle rings 32 and 33 to define the swirl channel 4. The driven ring 35 is provided with a linkage port 351. One end of each connecting rod 34 is connected to the rotating shaft of the blades 31, and the other end is provided with a roller 341 to be connected to the driven ring 35 through the linkage port 351. The air duct 2 is connected to the inner baffle ring 32 to communicate with the swirl channel 4. The adjusting end of the regulator 1 is located outside the air duct 2, and its linkage end passes through the air duct 2 and is connected to at least one connecting rod 34 to rotate and drive the connecting rod 34 to drive the driven ring 35, thereby driving the blades 31 to rotate and open and close synchronously.

[0039] Specifically, such as Figures 2 to 3As shown, the regulator 1 includes: an adjusting handle 11, a bearing seat 12, and a connecting shaft 13. A flange cover 21 is provided on the outer side of the air duct 2. The bearing seat 12 is fixed to the flange cover 21. The adjusting handle 11 is connected to the connecting shaft 13 via the bearing seat 12. The connecting end of the connecting shaft 13 passes through the air duct 2 and is connected to at least one connecting rod 34, thereby controlling at least one blade 31 to form an actively rotating blade 31. This, in turn, drives the driven ring 35 to move via one connecting rod 34, thereby driving the remaining blades 31 to rotate at equal angles. This supports the adjustment of the flow area of ​​the vortex duct 4.

[0040] Furthermore, since the opening and closing status of the internal blades 31 cannot be observed when the regulator 1 is adjusted externally, in order to prevent damage to the mechanism due to over-adjustment, such as... Figure 4 As shown, in an optional embodiment, one end of the bearing seat 12 is provided with a limiting disk 14, and one end of the adjusting handle 11 is provided with a pointer 15. The limiting disk 14 is provided with a limiting protrusion 16 to limit the rotational travel of the pointer 15. This limits the rotational angle of the adjusting handle 11 and prevents over-adjustment.

[0041] Furthermore, considering that the adjustment angle of the fixed blade 31 can be easily adjusted after the regulator 1 is rotated, therefore, as follows: Figures 4 to 6 As shown, in an optional embodiment, one end of the bearing seat 12 is provided with a limiting disk 14, and a plurality of scale grooves 17 are provided at a first position on the limiting disk 14 to form a fixed position. The adjusting handle 11 includes: a main handle 111, a secondary handle 112, and a spring 113. The main handle 111 is connected to the connecting shaft 13 via the bearing seat 12. One end of the secondary handle 112 is provided with a locking tooth 114. The main handle 111 and the secondary handle 112 are scissor-shapedly connected. The handles of both are elastically clamped by the spring 113 to support the main handle 111 to rotate and then manually clamp the secondary handle 112 so that the locking tooth 114 is embedded in the scale groove 17 and the current rotation position of the adjusting handle 11 is fixed.

[0042] Furthermore, in order to indicate the rotation angle of the adjustment handle 11, such as Figure 4 As shown, in an optional embodiment, a scale plate 141 is also provided at the second position of the limiting plate 14, wherein the scale on the scale plate 141 can correspond to the gear position of the scale groove 17, and the pointer 15 provided at one end of the main handle 111 can be used as an indicator to point to the scale plate 141, thereby guiding the adjusting handle 11 to operate the blade 31 to make more precise rotational adjustments.

[0043] In burner applications, the load depends on the amount of upstream medium, not on the burner itself; the burner merely acts as an adapter. Under any operating condition, the upstream medium flow rate may fluctuate, but it generally tends towards a constant value. During the flow through the cyclone separator, the overall medium flow rate remains constant.

[0044] In fluid mechanics, the relationship between flow rate, flow velocity, and flow area is a fundamental core formula that applies to the steady-state flow of various fluids such as liquids and gases (where flow velocity and flow rate do not change over time). Its essence is the embodiment of "conservation of fluid mass / volume".

[0045] Basic formula: Volumetric flow rate Q = Flow velocity V × Flow area A

[0046] From the derivation of the formula above, we can see that:

[0047] When V remains constant: if A increases, Q increases accordingly; if A decreases, Q decreases accordingly.

[0048] When the Q value remains constant: as the A value increases, the v value decreases accordingly; as the A value decreases, the V value increases accordingly.

[0049] Therefore, it can be seen that the function of the entire hydrocyclone is more inclined to the second case where the Q value is constant, while the first case where the v value is constant only exists in the ideal model.

[0050] Therefore, based on the above conclusions, in the adjustable hydrocyclone, the rotation and opening of the blade 31 can change the size of the flow channel. Since the upstream medium flow rate remains constant, when the flow channel area decreases, the medium velocity will increase, and when the flow channel area increases, the medium velocity will decrease.

[0051] For example, when the upstream medium flow rate is low, the medium velocity at the front end of the hydrocyclone is low. When the medium passes through the hydrocyclone, it is necessary to increase the medium velocity while keeping the flow rate constant. In this case, the hydrocyclone needs to be closed slightly. When the upstream medium flow rate is high, the medium velocity at the front end of the hydrocyclone is high. When the medium passes through the hydrocyclone, it is necessary to decelerate the medium while keeping the flow rate constant. In this case, the hydrocyclone needs to be opened wider.

[0052] In the preferred embodiment, reference is made to Figures 8 to 9 As shown, when blade 31 changes from the fully closed state to the fully open state, the rotation angle of the adjusting handle 11 and the connecting shaft 13 can be set from 0° to 60°, with the optimal rotation angle range being 0° to 30°. This range represents the optimal operating range of the cyclone separator. Excessive rotation angle of blade 31 will weaken the swirling effect of the flowing medium. Thus, the adjustable range of the medium flow rate can reach 0% to 150%, essentially covering all operating conditions of the burner, ensuring optimal operating conditions under each condition.

[0053] With this setup, during adjustment, the blades 31 can be controlled to rotate in a series of interconnected movements by rotating the adjusting handle 11 in the forward direction. The gap between the blades 31 starts from 0° and rotates to the preset maximum gap position. Conversely, rotating the adjusting handle 11 in the reverse direction returns the blades 31 from the maximum gap position back to the 0° gap position. By controlling the gap between the blades 31, the flow area of ​​the swirl duct 4 can be precisely controlled in real time, thereby changing the flow rate of the medium to match the required medium flow rate of the burner under different operating conditions, enabling the burner to achieve its optimal working state.

[0054] Furthermore, regardless of the operating condition of the blades 31, the combination of multiple blades 31 ensures that the medium (such as air, exhaust gas, acid gas, etc.) is always in a rotating inlet state. Due to the control of the cross-sectional size, the medium flow rate is moderate, allowing for more thorough mixing of the outflowing medium with other gases, resulting in higher combustion intensity and deeper reaction. This effectively promotes complete fuel combustion, significantly reducing emissions of pollutants such as CO and particulate matter while ensuring the burner maintains optimal operating conditions under various circumstances.

[0055] Furthermore, to ensure the sealing of the connection between the regulator 1 and the flange cover 21 of the air duct 2, such as... Figure 7 As shown, the regulator 1 further includes: a gland 18 and a packing packing 19, wherein the flange cover 21 is provided with a countersunk hole 22, the packing packing 19 is filled into the countersunk hole 22 and sleeved with the connecting shaft 13, and the gland 18 is sleeved on the shaft seat 12 and connected to the flange cover 21 to compact and seal the countersunk hole 22.

[0056] Furthermore, in order to improve the airflow guiding effect between blades 31, such as... Figure 3 As shown, in an optional embodiment, the blades 31 are provided with guide walls 311 with opposite folded edges at both ends. After adjusting the opening and closing angle between the blades 31, the guide walls 311 between adjacent blades 31 can form a guide opening to reduce airflow disturbance. At the same time, when the swirl channel 4 is closed, the blades 31 can form a certain fit between them through the guide walls 311 to seal them.

[0057] On the other hand, corresponding to the above examples, this utility model also provides a burner, which is made using an adjustable swirler as described in the above examples.

[0058] In summary, the adjustable cyclone separator and its burner provided by this invention innovatively incorporate a linkage structure between the regulator 1 and the blade assembly 3. This ingenious design allows the regulator 1 to directly control the rotation angle of the blades 31 outside the air duct 2, thereby altering the flow area of ​​the cyclone duct 4. This design enables dynamic adjustment of the cyclone separator's operating parameters without disassembly or shutdown. Its core advantage lies in its ability to adjust in real-time according to the actual needs of different load conditions, precisely matching the medium flow rate required by the burner. It optimizes the air input and gas-fuel mixing state in real-time with load changes, effectively promoting complete fuel combustion. This significantly reduces emissions of pollutants such as CO and particulate matter while ensuring the burner maintains optimal operating conditions under various circumstances.

[0059] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0060] Furthermore, various different implementation methods of this utility model can be arbitrarily combined, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An adjustable hydrocyclone, characterized in that... include: The system comprises a regulator, a duct, and a blade assembly. The blade assembly includes blades, an inner retaining ring, an outer retaining ring, connecting rods, and a driven ring. The blades are axially connected to the inner and outer retaining rings on both sides and are evenly distributed radially around the inner and outer retaining rings to define a swirling airflow channel. The driven ring has a linkage port. One end of each connecting rod is connected to the axial end of the blade, and the other end has a roller to engage and move with the driven ring via the linkage port. The duct is connected to the inner retaining ring to communicate with the swirling airflow channel. The regulator's adjustment end is located outside the duct, and its linkage end passes through the duct and is connected to at least one connecting rod to rotate and drive the connecting rod to move the driven ring, thereby causing the blades to rotate and open and close synchronously.

2. The adjustable cyclone separator according to claim 1, characterized in that, The regulator includes: an adjustment handle, a bearing seat, and a connecting shaft. A flange cover is provided on the outside of the air duct, the bearing seat is fixed on the flange cover, the adjustment handle is connected to the connecting shaft via the bearing seat, and the connecting end of the connecting shaft passes through the air duct and is connected to at least one connecting rod.

3. The adjustable cyclone separator according to claim 2, characterized in that, One end of the shaft seat is provided with a limiting plate, and one end of the adjusting handle is provided with a pointer. The limiting plate is provided with a limiting protrusion to limit the rotational stroke of the pointer.

4. The adjustable cyclone separator according to claim 2, characterized in that, One end of the shaft seat is provided with a limiting plate, and a scale groove is provided at the first position on the limiting plate. The adjusting handle includes a main handle, a secondary handle, and an elastic element. The main handle is connected to the connecting shaft via the shaft seat, and one end of the secondary handle is provided with a locking tooth. The main handle and the secondary handle are scissor-shaped shafts connected. The handles of both are elastically clamped by the elastic element, which supports the secondary handle locking tooth to be inserted into the scale groove after the main handle rotates.

5. The adjustable cyclone separator according to claim 4, characterized in that, The second position of the limiting plate is provided with a scale plate, and one end of the main handle is provided with a pointer to point to the scale plate.

6. The adjustable cyclone separator according to any one of claims 4 or 5, characterized in that, The limiting plate is provided with a limiting protrusion to limit the rotation stroke of the pointer.

7. The adjustable cyclone separator according to claim 2, characterized in that, The regulator further includes: a gland and a packing packing, wherein the flange cover is provided with a countersunk hole, the packing packing is filled into the countersunk hole and sleeved with the connecting shaft, and the gland is sleeved on the shaft seat and connected to the flange cover to compact and seal the countersunk hole.

8. The adjustable cyclone separator according to claim 1, characterized in that, The blade has guide walls at both ends with opposite folded edges.

9. A burner, characterized in that... include: The adjustable cyclone as described in any one of claims 1 to 8.

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