Matrix type parallel cyclone separator group
By using pretreatment devices and pipelines of different lengths in matrix parallel cyclone separator sets to ensure uniform distribution of airflow and adopting matrix compact arrangement, the problems of limited processing capacity and uneven distribution of airflow are solved, and efficient gas treatment and space savings are achieved.
Patent Information
- Application Number
- CN202510082088.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-04-15
AI Technical Summary
The traditional single cyclone separator has limited processing capacity and is not compact in structure, and the uneven airflow distribution of matrix parallel cyclone separator leads to a decrease in separation efficiency.
A matrix-type parallel cyclone separator group is designed to ensure uniform distribution of airflow to each cyclone through pretreatment devices and pipelines of different lengths, and a matrix-type compact arrangement is adopted to improve space utilization and processing capacity.
The processing capacity and space utilization of the cyclone separator are improved, airflow disorders and degraded separation efficiency are avoided, and the reliability and maintenance convenience of the system are enhanced.
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Figure CN119819499A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cyclone separators, and in particular to a matrix-type parallel cyclone separator group. Background Art
[0002] The cyclone separator is one of the important equipment in the field of modern industrial dust removal. Traditional single cyclone separators have many shortcomings in practical applications. Its processing capacity is often limited by the size of the equipment. In order to meet the requirements of the process flow for the processing gas volume, the processing volume of the cyclone separator needs to be increased. The single cyclone separator needs to be significantly enlarged in size, but too large equipment not only takes up space, but also increases manufacturing costs and installation difficulties. At the same time, the separation efficiency of a single cyclone separator is greatly affected by the stability of the airflow. Under high gas volume conditions, airflow turbulence or vortex shedding is prone to occur inside the equipment, which will lead to a decrease in separation efficiency and make it difficult to cope with conditions with large changes in flow or dust concentration. In addition, a single cyclone separator is easily damaged under highly abrasive or corrosive conditions, resulting in frequent maintenance or replacement, affecting the overall reliability of the system. These shortcomings make the single cyclone separator less adaptable to different working conditions and gas characteristics, and it is difficult to adapt to the needs of modern industry for efficiency, compactness and diversification. It is urgent to adopt new designs to improve system performance.
[0003] Compared with the traditional single cyclone separator, the matrix parallel cyclone separator has significant advantages in processing high gas volume. Through the reasonable layout of multiple cyclone separation units, the matrix parallel cyclone separator can disperse the large gas volume to multiple small separation units for processing, thereby effectively improving the overall processing capacity. The gas volume processed by each separation unit is relatively small, which can ensure that the internal airflow is more stable and avoid the problem of reduced efficiency caused by high flow rate or turbulence. Not only that, the matrix parallel cyclone separator maximizes the processing capacity per unit volume through a compact design. Multiple cyclone units are usually arranged in a matrix, and the overall equipment occupies a small area, which is convenient for installation in places with limited space. At the same time, the matrix parallel structure consists of multiple independent cyclone separator units, each unit has a relatively independent working channel. During inspection or maintenance, the faulty unit can be processed separately without shutting down the entire system. This feature greatly improves the continuity and stability of system operation.
[0004] However, uneven airflow distribution has a significant impact on the operating performance and stability of the matrix parallel cyclone separator, which will lead to reduced separation efficiency, unbalanced unit load, increased pressure loss, weakened system stability and aggravated particle re-entrainment. When the airflow is unevenly distributed in each cyclone separation unit, the unit with too high airflow will destroy the stability of the internal flow field due to enhanced turbulence, resulting in reduced separation efficiency, while the unit with too low airflow cannot fully separate particles due to insufficient energy. This load imbalance may cause some units to operate overloaded for a long time, increase wear and even shorten the life of the equipment, while other units are not effectively utilized, resulting in a waste of resources.
[0005] Therefore, in order to address the problems of limited processing capacity and non-compact structure of the above-mentioned traditional single cyclone separators, and to improve the problem of decreased separation efficiency caused by uneven flow distribution of parallel cyclone separators, a matrix parallel cyclone separator group can be designed. Summary of the invention
[0006] In order to overcome the problems of limited processing capacity and non-compact structure of traditional single cyclone separators, and to improve the problem of decreased separation efficiency caused by uneven flow distribution of parallel cyclone separators.
[0007] The technical solution of the present invention is: a matrix parallel cyclone separator group, including a smoke inlet; also including a first pretreatment device, a second pretreatment device, a first cyclone separator, a second cyclone separator, a third cyclone separator, a fourth cyclone separator and a pressure stabilizing chamber, the right end of the smoke inlet is connected to a first inlet branch pipeline, the end of the first inlet branch pipeline is provided with a first pretreatment device, the right end of the first pretreatment device is connected to a first cyclone separator inlet pipeline, the right end of the first cyclone separator inlet pipeline is provided with a first cyclone separator, the upper end of the first cyclone separator is connected to a first cyclone separator outlet pipeline, the right end of the first pretreatment device is connected to a second cyclone separator inlet pipeline, the right end of the second cyclone separator inlet pipeline is provided with a second cyclone separator, the second cyclone separator outlet pipeline is provided with a second cyclone separator, and the second cyclone separator outlet pipeline is provided with a second cyclone separator outlet pipeline. The upper end of the wind separator is connected to the second cyclone separator outlet pipeline, the right end of the flue gas inlet is connected to the second inlet branch pipeline, the right end of the second inlet branch pipeline is connected to the second pretreatment device, the right end of the second pretreatment device is connected to the fourth cyclone separator inlet pipeline, the right end of the fourth cyclone separator inlet pipeline is provided with a fourth cyclone separator, the upper end of the fourth cyclone separator is connected to the fourth cyclone separator outlet pipeline, the right end of the second pretreatment device is connected to the third cyclone separator inlet pipeline, the right end of the third cyclone separator inlet pipeline is provided with a third cyclone separator, the upper end of the third cyclone separator is connected to the third cyclone separator outlet pipeline, a pressure stabilizing chamber is provided at the end of the first cyclone separator outlet pipeline away from the first cyclone separator, and a flue gas outlet is provided at the right end of the pressure stabilizing chamber.
[0008] Preferably, after entering from the inlet, the flue gas is split and enters the first pretreatment device and the second pretreatment device respectively. The pretreatment device is provided with three layers of baffles for increasing the residence time of the flue gas there. The flue gas flowing out of the first pretreatment device flows into the first cyclone separator and the second cyclone separator respectively through pipes of different lengths and cross-sectional areas, and the airflow flowing out of the second pretreatment device flows into the third cyclone separator and the fourth cyclone separator respectively through pipes of different lengths and cross-sectional areas. The inlet lengths and cross-sectional areas of the first cyclone separator, the second cyclone separator, the third cyclone separator and the fourth cyclone separator are determined by calculation to ensure that the speed and flow rate at the inlet of each cyclone separator are the same, thereby achieving uniform distribution of the airflow to each cyclone separator, eliminating the problem of decreased separation efficiency caused by uneven gas distribution, ensuring the normal operation of the equipment, and at the same time adopting a matrix layout, which greatly reduces the floor space occupied.
[0009] Preferably, the parallel cyclone separator groups are overall symmetrical along the central axis and are arranged side by side, with the overall airflow direction being the same.
[0010] Preferably, the length of the first cyclone separator inlet pipeline is shorter than the length of the second cyclone separator inlet pipeline. The length of the first cyclone separator inlet pipeline is 1.0 m, and the length of the second cyclone separator inlet pipeline is 5.5 m.
[0011] Preferably, the longitudinal cross-sectional area of the first cyclone separator inlet pipeline is smaller than that of the second cyclone separator inlet pipeline, the longitudinal cross-sectional size of the first cyclone separator inlet pipeline is 0.700m*1.6m, and the longitudinal cross-sectional size of the second cyclone separator inlet pipeline is 0.812m*1.6m.
[0012] Preferably, the outlet pipelines of the first pre-treatment device and the second pre-treatment device are arranged close to the central axis of the parallel cyclone separator group.
[0013] Preferably, the first cyclone separator, the second cyclone separator, the third cyclone separator and the fourth cyclone separator are arranged in a matrix, and the first cyclone separator, the second cyclone separator, the third cyclone separator and the fourth cyclone separator have the same structure. The cylinder height of the cyclone separator is 6m, the cylinder diameter is 3m, the cone height is 6m, the ash hopper diameter is 0.75m, the inlet height is 1.6m, the inlet width is 0.703m, the outlet diameter is 1.5m, and the inner cylinder length is 1.875m.
[0014] Preferably, the pipeline height of the first cyclone separator outlet pipeline is higher than the pipeline height of the second cyclone separator outlet pipeline, the pipeline height of the third cyclone separator outlet pipeline is higher than the pipeline height of the fourth cyclone separator outlet pipeline, and the outlet ends of the first cyclone separator outlet pipeline, the second cyclone separator outlet pipeline, the third cyclone separator outlet pipeline, and the fourth cyclone separator outlet pipeline converge in the pressure stabilizing chamber.
[0015] Preferably, the pressure stabilizing chamber adopts a square tube to round tube structure, the width and height of the square tube are both 4.52m, the length is 8m, the diameter of the round tube is 1.4, and the length of the round tube is 5m.
[0016] The beneficial effects of the present invention are as follows: the matrix-type parallel cyclone separator group realizes the matrix-type compact arrangement of the cyclone separators by arranging the outlet of the pretreatment device close to the central axis and adopting pipelines of different lengths, so that the matrix-type parallel cyclone separators have advantages in terms of floor space, meet the needs of modern industry for equipment miniaturization and space saving, and improve space utilization; and by connecting multiple cyclone separator modules to work in parallel, the overall processing capacity of the system is effectively improved, and the processing gas volume of each unit is relatively small, which can avoid the efficiency reduction that may occur when a single large-volume cyclone separator is used to process a high gas volume. The problems of air descent and air flow turbulence are solved; and by adopting axially symmetrical distribution, designing the outlet size of the pretreatment device and setting the outlet valve of the pretreatment device, the airflow is evenly distributed in the four cyclone separators, thereby ensuring the stability of the internal flow field of the cyclone separator and preventing the separation efficiency from decreasing; not only that, the reliability of the system has been significantly improved, the parallel structure and the pressure-stabilizing chamber enable each separation unit to operate independently, and a failure in one unit will not affect the normal operation of the entire system, avoiding the risk of shutdown of the entire system caused by a single point failure, and effectively extending the service life of the equipment and reducing maintenance and downtime. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the connection and application of the novel matrix parallel cyclone separator group of the present invention;
[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a novel matrix parallel cyclone separator group of the present invention;
[0019] Figure 3 This is a cross-sectional view of the outlet of the novel pretreatment device of the present invention.
[0020] Explanation of the accompanying drawings: 1. Flue gas inlet; 2. First inlet branch pipeline; 3. Second inlet branch pipeline; 4. First pretreatment device; 5. Second pretreatment device; 6. First cyclone separator inlet pipeline; 7. Second cyclone separator inlet pipeline; 8. Third cyclone separator inlet pipeline; 9. Fourth cyclone separator inlet pipeline; 10. First cyclone separator; 11. Second cyclone separator; 12. Third cyclone separator; 13. Fourth cyclone separator; 14. First cyclone separator outlet pipeline; 15. Second cyclone separator outlet pipeline; 16. Third cyclone separator outlet pipeline; 17. Fourth cyclone separator outlet pipeline; 18. Pressure stabilizing chamber; 19. Flue gas outlet. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] See also Figure 1-Figure 3The present invention provides an embodiment: a matrix parallel cyclone separator group, including a smoke inlet 1; also including a first pretreatment device 4, a second pretreatment device 5, a first cyclone separator 10, a second cyclone separator 11, a third cyclone separator 12, a fourth cyclone separator 13 and a pressure stabilizing chamber 18, the right end of the smoke inlet 1 is connected to a first inlet branch pipeline 2, the end of the first inlet branch pipeline 2 is provided with a first pretreatment device 4, the right end of the first pretreatment device 4 is connected to a first cyclone separator inlet pipeline 6, the right end of the first cyclone separator inlet pipeline 6 is provided with a first cyclone separator The first cyclone separator 10 is connected to the first cyclone separator outlet pipeline 14 at the upper end, the second cyclone separator inlet pipeline 7 is connected to the right end of the first pretreatment device 4, the second cyclone separator inlet pipeline 7 is provided with a second cyclone separator 11 at the right end, the second cyclone separator 11 is connected to the second cyclone separator outlet pipeline 15 at the upper end, the second inlet branch pipeline 3 is connected to the right end of the flue gas inlet 1, the second inlet branch pipeline 3 is connected to the second pretreatment device 5 at the right end, the fourth cyclone separator inlet pipeline 9 is connected to the fourth cyclone separator inlet pipeline 9, and the fourth cyclone separator inlet pipeline 9 is connected to the second pretreatment device 5. The right end of the pipeline 9 is provided with a fourth cyclone separator 13, the upper end of the fourth cyclone separator 13 is connected to the fourth cyclone separator outlet pipeline 17, the right end of the second pretreatment device 5 is connected to the third cyclone separator inlet pipeline 8, the right end of the third cyclone separator inlet pipeline 8 is provided with a third cyclone separator 12, the upper end of the third cyclone separator 12 is connected to the third cyclone separator outlet pipeline 16, the first cyclone separator outlet pipeline 14 is provided with a pressure stabilizing chamber 18 at one end away from the first cyclone separator 10, and the right end of the pressure stabilizing chamber 18 is provided with a smoke outlet 19, and the smoke enters from the smoke inlet 1 through The first inlet branch pipeline 2 and the second inlet branch pipeline 3 flow into the first pretreatment device 4 and the second pretreatment device 5 respectively. The flue gas particles grow in the pretreatment devices. At the outlets of the pretreatment devices, the first cyclone separator inlet pipeline 6, the second cyclone separator inlet pipeline 7, the third cyclone separator inlet pipeline 8, and the fourth cyclone separator inlet pipeline 9 are designed with dimensions to ensure that the airflow is evenly distributed to the two connected cyclone separators. After the flue gas is purified by the cyclone separators, it flows into the pressure stabilizing chamber 18 through the cyclone separator outlet pipeline. Under the action of the pressure stabilizing chamber 18, the pressure at the confluence is kept relatively stable.
[0023] See also Figure 2-Figure 3In this embodiment, the parallel cyclone separator group is overall symmetrical along the central axis and adopts a side-by-side layout. The overall flow direction of the airflow is the same. The symmetrical design makes the various components of the cyclone separator group more compact and orderly in layout, which is convenient for maintenance and overhaul. The length of the first cyclone separator inlet pipeline 6 is less than the length of the second cyclone separator inlet pipeline 7. The length of the first cyclone separator inlet pipeline 6 is 1.0m, and the length of the second cyclone separator inlet pipeline 7 is 5.5m. The longitudinal cross-sectional area of the first cyclone separator inlet pipeline 6 is less than the longitudinal cross-sectional area of the second cyclone separator inlet pipeline 7. The longitudinal cross-sectional size of the first cyclone separator inlet pipeline 6 is 0.700m. *1.6m, the longitudinal cross-sectional dimension of the inlet pipeline 7 of the second cyclone separator is 0.812m*1.6m. By designing the outlet dimension of the pretreatment device, it is possible to ensure that the airflow is evenly distributed in the four cyclone separators, thereby ensuring the stability of the internal flow field of the cyclone separator and preventing the separation efficiency from decreasing. The outlet pipelines of the first pretreatment device 4 and the second pretreatment device 5 are arranged close to the central axis of the parallel cyclone separator group. The cyclone separators are arranged compactly in a matrix, so that the matrix parallel cyclone separators have an advantage in terms of floor space, thereby improving space utilization. The first cyclone separator 10, the second cyclone separator 11, the third cyclone separator 12, and the fourth cyclone separator 13 are arranged in a compact matrix. The separator 13 is arranged in a matrix, and the first cyclone separator 10, the second cyclone separator 11, the third cyclone separator 12 and the fourth cyclone separator 13 have the same structure. Theoretically, the present invention is applicable to all cyclone separators with a total pressure drop of about 2500Pa. In this example, the lapple type verification is adopted. The cylinder height of the cyclone separator is 6m, the cylinder diameter is 3m, the cone height is 6m, the ash hopper diameter is 0.75m, the inlet height is 1.6m, the inlet width is 0.703m, the outlet diameter is 1.5m, the inner cylinder length is 1.875m, and the pipeline height of the first cyclone separator outlet pipeline 14 is higher than that of the second cyclone separator outlet pipeline 15. Pipeline height: the pipeline height of the third cyclone separator outlet pipeline 16 is higher than the pipeline height of the fourth cyclone separator outlet pipeline 17; the outlet ends of the first cyclone separator outlet pipeline 14, the second cyclone separator outlet pipeline 15, the third cyclone separator outlet pipeline 16 and the fourth cyclone separator outlet pipeline 17 converge in the pressure stabilizing chamber 18; the pressure stabilizing chamber 18 adopts a square tube to round tube structure; the square tube is 4.52m wide and high, 8m long, 1.4 in diameter and 5m in length; the design of the pressure stabilizing chamber 18 ensures the stability and reliability of the overall pressure of the equipment, so that each separation unit operates independently, and a failure in one unit will not affect the normal operation of the entire system.
[0024] The numerical simulation results of the matrix parallel cyclone separator group of the present invention show that under the industrial actual inlet and outlet pressure of 3500Pa, the inlet air volume of the four cyclone separators is relatively uniform, and the inlet air volume of the four cyclone separators is 79986m3 / h(10),80838m 3 / h(11),80652m 3 / h(12),81263m 3 / h(13), the maximum air volume difference is 1277m 3 / h; the results show that the present invention distributes the airflow relatively evenly to the four cyclone separators.
[0025] During operation, the flue gas enters from the flue gas inlet 1 and is divided into the first pretreatment device 4 and the second pretreatment device 5 respectively. The pretreatment device is provided with three layers of baffles for increasing the residence time of the flue gas there. The flue gas flowing out of the first pretreatment device 4 flows into the first cyclone separator 10 and the second cyclone separator 11 respectively through pipes of different lengths and cross-sectional areas, and the airflow flowing out of the second pretreatment device 5 flows into the third cyclone separator 12 and the fourth cyclone separator 13 respectively through pipes of different lengths and cross-sectional areas. The inlet lengths and cross-sectional areas of the first cyclone separator 10, the second cyclone separator 11, the third cyclone separator 12 and the fourth cyclone separator 13 are determined by calculation to ensure that the speed and flow rate at the inlet of each cyclone separator are the same. Subsequently, the flue gas and the particles are separated in each cyclone separator, and finally the gas enters the pressure stabilizing chamber 18 through the overflow pipe and is connected to the flue gas outlet 19.
[0026] Through the above steps, multiple cyclone separator modules are connected in parallel to effectively improve the overall processing capacity of the system. The airflow is evenly distributed in the four cyclone separators by adopting axially symmetrical distribution, designing the outlet size of the pretreatment device, and setting the outlet valve of the pretreatment device. This not only avoids the risk of system-wide shutdown caused by a single point failure, significantly improves the reliability of the system, but also greatly reduces the footprint, thereby effectively solving the problems of limited processing capacity and non-compact structure of traditional single cyclone separators, and improving the problem of decreased separation efficiency caused by uneven flow distribution of parallel cyclone separators.
[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.
Claims
1. A matrix type parallel cyclone separator group, comprising a flue gas inlet (1); characterized in that: The invention also comprises a first pretreatment device (4), a second pretreatment device (5), a first cyclone separator (10), a second cyclone separator (11), a third cyclone separator (12), a fourth cyclone separator (13) and a pressure stabilizing chamber (18); the right end of the smoke inlet (1) is connected to a first inlet branch pipeline (2); the end of the first inlet branch pipeline (2) is provided with a first pretreatment device (4); the right end of the first pretreatment device (4) is connected to a first cyclone separator inlet pipeline (6); the right end of the first cyclone separator inlet pipeline (6) is provided with a first cyclone separator; the upper end of the first cyclone separator (10) is connected to a first cyclone separator outlet pipeline (14); the right end of the first pretreatment device (4) is connected to a second cyclone separator inlet pipeline (7); the right end of the second cyclone separator inlet pipeline (7) is provided with a second cyclone separator (11); the upper end of the second cyclone separator (11) is connected to a second cyclone separator outlet pipeline (14); The right end of the smoke inlet (1) is connected to a second inlet branch pipeline (3), the right end of the second inlet branch pipeline (3) is connected to a second pre-treatment device (5), the right end of the second pre-treatment device (5) is connected to a fourth cyclone separator inlet pipeline (9), the right end of the fourth cyclone separator inlet pipeline (9) is provided with a fourth cyclone separator (13), the upper end of the fourth cyclone separator (13) is connected to a fourth cyclone separator outlet pipeline (17), and the fourth cyclone separator (13) is connected to a fourth cyclone separator outlet pipeline (17). The right end of the second pre-treatment device (5) is connected to a third cyclone separator inlet pipeline (8), a third cyclone separator (12) is provided at the right end of the third cyclone separator inlet pipeline (8), a third cyclone separator (16) is connected to the upper end of the third cyclone separator (12), a pressure stabilizing chamber (18) is provided at one end of the first cyclone separator outlet pipeline (14) away from the first cyclone separator (10), and a smoke outlet (19) is provided at the right end of the pressure stabilizing chamber (18).
2. A matrix type parallel cyclone separator group according to claim 1, characterized in that: The parallel cyclone separator group is overall symmetrical along the central axis and adopts a side-by-side layout, and the overall flow direction of the airflow is the same.
3. A matrix type parallel cyclone separator group according to claim 1, characterized in that: The length of the first cyclone separator inlet pipeline (6) is shorter than the length of the second cyclone separator inlet pipeline (7); the length of the first cyclone separator inlet pipeline (6) is 1.0 m, and the length of the second cyclone separator inlet pipeline (7) is 5.5 m.
4. A matrix type parallel cyclone separator group according to claim 3, characterized in that: The longitudinal cross-sectional area of the first cyclone separator inlet pipeline (6) is smaller than the longitudinal cross-sectional area of the second cyclone separator inlet pipeline (7); the longitudinal cross-sectional size of the first cyclone separator inlet pipeline (6) is 0.700 m*1.6 m, and the longitudinal cross-sectional size of the second cyclone separator inlet pipeline (7) is 0.812 m*1.6 m.
5. The matrix parallel cyclone separator group according to claim 1, characterized in that: The outlet pipelines of the first pre-treatment device (4) and the second pre-treatment device (5) are arranged close to the central axis of the parallel cyclone separator group.
6. A matrix type parallel cyclone separator group according to claim 1, characterized in that: The first cyclone separator (10), the second cyclone separator (11), the third cyclone separator (12), and the fourth cyclone separator (13) are arranged in a matrix. The first cyclone separator (10), the second cyclone separator (11), the third cyclone separator (12), and the fourth cyclone separator (13) have the same structure. The cylinder height of the cyclone separator is 6 m, the cylinder diameter is 3 m, the cone height is 6 m, the ash hopper diameter is 0.75 m, the inlet height is 1.6 m, the inlet width is 0.703 m, the outlet diameter is 1.5 m, and the inner cylinder length is 1.875 m.
7. A matrix type parallel cyclone separator group according to claim 1, characterized in that: The pipeline height of the first cyclone separator outlet pipeline (14) is higher than the pipeline height of the second cyclone separator outlet pipeline (15), the pipeline height of the third cyclone separator outlet pipeline (16) is higher than the pipeline height of the fourth cyclone separator outlet pipeline (17), and the outlet ends of the first cyclone separator outlet pipeline (14), the second cyclone separator outlet pipeline (15), the third cyclone separator outlet pipeline (16), and the fourth cyclone separator outlet pipeline (17) are converged in the pressure stabilizing chamber (18).
8. A matrix type parallel cyclone separator group according to claim 7, characterized in that: The pressure stabilizing chamber (18) adopts a square tube-to-circular tube structure, the square tube is 4.52 m wide and high, 8 m long, the circular tube has a diameter of 1.4 and a circular tube length of 5 m.