Large-flow air suspension centrifugal blower box body

Abstract

The invention relates to the technical field of fan equipment, and provides a high-flow air suspension centrifugal blower box body which comprises a box body shell, a three-way box body is fixedly connected to the outer surface of one side of the box body shell, an emptying valve mounting pipe is fixedly connected to the outer surface of the three-way box body, and an air outlet is formed in the outer surface of the three-way box body; an air adjusting structure is connected to the outer surface of the three-way box body, a shunting column is fixedly connected to the interior of the three-way box body, an electromagnetic ball valve mounting position is reserved in the three-way box body, a frequency converter cabin is arranged in the box body shell, an air filter mounting position is reserved on the surface of the box body shell, and a display screen is fixedly connected to the outer surface of one side of the box body shell; a fan outlet mounting pipe is fixedly connected to the position, close to the three-way box body, of the inner side surface of the box body shell, and a fan cabin is arranged in the box body shell. By means of the technical scheme, the problems that an existing centrifugal blower box is large in use size and high in heat dissipation cost and failure rate, and an outlet pipeline is large in occupied size and high in cost are solved.

Description

Technical Field

[0001] The invention relates to the technical field of fan equipment, and in particular to a large-flow air suspension centrifugal blower casing. Background Art

[0002] As a new generation of air supply and pressure blower in industries such as sewage treatment, aquaculture, papermaking and textiles, air suspension centrifugal compressors have advantages that traditional compressors do not have, such as energy saving, stability, and low noise; The interior of the device usually includes a frequency converter and an air suspension compressor; the compressor frequency converter usually adopts the working mode of AC-DC-AC frequency converter, first rectifying the AC power into DC power, and then converting it into AC power of the required frequency through an inverter to control the speed of the fan.

[0003] The air suspension compressor mainly uses the air bearing system. During operation, the compressor rotor rotates at high speed to form a gas film between the bearings, realize the rotor suspension, avoid direct contact between mechanical parts, and eliminate friction; the impeller is driven by a high-speed permanent magnet synchronous motor, the impeller inhales air to increase its kinetic energy, and converts the kinetic energy into pressure energy in the volute, and finally outputs it through the exhaust duct. This box is suitable for double-pole double-outlet blowers.

[0004] After searching, the anti-surge air suspension centrifugal blower and its processing technology with the authorization announcement number CN116146504B can effectively control the tip clearance to prevent surge, especially reduce the tip clearance at low flow rate, increase the impeller outlet back pressure; make the flow entering the suction chamber blade leave the surge area, effectively prevent surge; However, the existing centrifugal blower casing has the following disadvantages: 1) The inverter and the fan are in the same cabin, and the actual usage volume is huge; 2) The inverter requires an additional cooling fan, which is costly and has a high failure rate; 3) The herringbone design of the outlet pipe occupies a large volume and is costly. For this reason, we propose a large-flow air suspension centrifugal blower casing. Summary of the invention

[0005] The present invention provides a large-flow air suspension centrifugal blower casing, which solves the problems mentioned in the background art that the existing centrifugal blower casing has a large usage volume, high heat dissipation cost and failure rate, and a large outlet pipe occupies a large volume and is costly.

[0006] The technical solution of the present invention is as follows: The venting device of the present invention is a kind of air filter installation device, and the air filter installation position is set in the air filter housing, and the venting device of the present invention ...

[0007] As a further technical solution of the present invention, the partition is used to separate the area inside the box shell, the upper cavity is the inverter compartment, and the lower cavity is the fan compartment. The air holes are used to facilitate the cooling airflow from the inverter compartment to flow into the fan compartment, and the three-way box is connected and fixed to the box shell by bolts.

[0008] As a further technical solution of the present invention, the fan outlet mounting pipe passes through the outer shell of the three-way box body and the box body shell to the interior of the box body shell, and one end extending into the box body shell is connected to the air outlet end of the fan, the diverter column is a triangular prism structure, and the number of the fan outlet mounting pipes is two groups and is symmetrically distributed.

[0009] As a further technical solution of the present invention, the air adjusting structure includes an air outlet pipe fixedly connected to the outer surface of the three-way box at the air outlet corresponding to the outer surface of the three-way box, the outer surface of the air outlet pipe is sleeved with a mounting plate, the outer surface of the mounting plate is fixedly connected with a fixed sleeve, a movable pipe is slidably connected between the fixed sleeve and the air outlet pipe, an adjustable air outlet is opened on the outer surface of the movable pipe, a pulling spring is connected between one end of the movable pipe and the three-way box, and a mute component is connected to the outer surface of the movable pipe.

[0010] As a further technical solution of the present invention, the silent component includes a through hole opened on the outer surface of the movable tube, and the movable tube is fixedly connected to a fixed plate at the inner side of the through hole corresponding to the fixed plate, and both side surfaces of the fixed plate are provided with a pushing component, and the pushing component includes a pushing spring connected to the fixed plate at one end, and one end of the pushing spring is connected to a fixed bracket, and a roller is rotatably connected to the inner side of the fixed bracket, and a fixed frame is fixedly connected to the surface of the fixed plate, and a telescopic plate is connected between the fixed bracket and the fixed frame.

[0011] As a further technical solution of the present invention, the mounting plate is fixedly connected to the tee box through bolts. The movable pipe is a hollow cylindrical structure with one end closed. The inner diameter of the fixed sleeve is larger than the outer diameter of the movable pipe, and the outer diameter of the air outlet pipe is smaller than the inner diameter of the movable pipe.

[0012] As a further technical solution of the present invention, the movable pipe slides along the length directions of the fixed sleeve and the air outlet pipe. The elastic ends of the pulling spring are respectively fixedly connected to the movable pipe and the mounting plate.

[0013] As a further technical solution of the present invention, the air flow blown out through the air outlet pipe pushes the movable pipe to realize the reciprocating sliding of the movable pipe along the length directions of the fixed sleeve and the air outlet pipe. The adjustable air outlet penetrates through the movable pipe. The number of the adjustable air outlets is several groups and they are distributed in an annular array.

[0014] As a further technical solution of the present invention, the through holes penetrate through the movable pipe. The number of the through holes is several groups and they are distributed in an annular array. The elastic ends of the pushing spring are respectively fixedly connected to the fixed bracket and the fixed plate. The fixed bracket is in a "U" shape structure. The roller is located inside the fixed bracket, and the roller is rotatably connected to the fixed bracket through a bearing.

[0015] As a further technical solution of the present invention, the roller on the outer side of the fixed plate is in rolling connection with the fixed sleeve, and the roller on the inner side of the fixed plate is in rolling connection with the air outlet pipe. The telescopic plate is a plate-like structure with a telescopic function, and the telescopic direction is its own length direction. The two ends of the telescopic plate are respectively hinged to the fixed bracket and the fixed frame.

[0016] The working principle and beneficial effects of the present invention are as follows: In the present invention, through the functions of the partition board, the tee box, the vent valve installation pipe, the air outlet and the flow dividing column, the interior of the box body shell is designed into two parts. The upper part is the electrical part, that is, the position of the frequency converter structure, and the lower part is the fan part, that is, the position of the fan structure. At the same time, the gas flow direction follows the air filter at the air filter installation position → the frequency converter compartment → the fan compartment. The gas flows from the air filter at the air filter installation position into the frequency converter compartment, cools the frequency converter and then passes through the ventilation holes into the fan compartment, is mixed with the motor cooling air and then is sucked by the fan. The gas sucked by the fan is discharged into the interior of the tee box through the fan outlet installation pipe, and is discharged from the opening of the air outlet through the tee box, which can reduce the volume of the external pipeline and effectively reduce the cost. Brief Description of the Drawings

[0017] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0018] Figure 1 It is a schematic structural diagram of the box body device of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local structure from another perspective; Figure 3 For the present invention Figure 2 Schematic diagram of the local structure from another perspective; Figure 4 It is a schematic diagram of a partial structure of the air adjustment structure of the present invention; Figure 5 It is an enlarged view of the local structure of the air adjustment structure of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the local structure of the middle silent component.

[0019] In the figure: 1. Box shell; 2. Three-way box; 3. Vent valve installation pipe; 4. Air outlet; 5. Air adjustment structure; 51. Air outlet pipe; 52. Mounting plate; 53. Fixed sleeve; 54. Movable pipe; 55. Adjustable air outlet; 56. Pull spring; 57. Silent component; 571. Through hole; 572. Fixed plate; 573. Push spring; 574. Fixed bracket; 575. Roller; 576. Fixed bracket; 577. Telescopic plate; 6. Diverter column; 7. Solenoid ball valve installation position; 8. Inverter compartment; 9. Air filter installation position; 10. Display screen; 11. Fan outlet installation pipe; 12. Fan compartment; 13. Partition; 14. Air vent. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, as Figure 1~Figure 4As shown, the present embodiment proposes a large-flow air suspension centrifugal blower case, including a case shell 1, a three-way case 2 is fixedly connected to the outer surface of one side of the case shell 1, a vent valve mounting pipe 3 is fixedly connected to the outer surface of the three-way case 2, an air outlet 4 is provided on the outer surface of the three-way case 2, an air regulating structure 5 is connected to the outer surface of the three-way case 2, a diverter column 6 is fixedly connected to the inside of the three-way case 2, an electromagnetic ball valve mounting position 7 is reserved inside the three-way case 2, a frequency converter cabin 8 is arranged inside the case shell 1, an air filter mounting position 9 is reserved on the surface of the case shell 1, a display screen 10 is fixedly connected to the outer surface of one side of the case shell 1, a fan outlet mounting pipe 11 is fixedly connected to the inner surface of the case shell 1 near the three-way case 2, a fan cabin 12 is provided inside the case shell 1, a partition 13 is fixedly connected between the fan cabin 12 and the frequency converter cabin 8 on the inner wall surface of the case shell 1, and a vent hole 14 is provided on the outer surface of the partition 13.

[0022] The partition 13 is used to separate the area inside the box shell 1. The upper cavity is the inverter compartment 8, and the lower cavity is the fan compartment 12. The air vents 14 are used to facilitate the cooling air flow from the inverter compartment 8 to the fan compartment 12. The three-way box 2 is connected and fixed to the box shell 1 by bolts.

[0023] The fan outlet mounting pipe 11 passes through the three-way box body 2 and the outer shell of the box body shell 1 to the interior of the box body shell 1, and one end extending into the box body shell 1 is connected to the air outlet end of the fan. The diverter column 6 is a triangular prism structure. The number of fan outlet mounting pipes 11 is two groups and they are symmetrically distributed.

[0024] In this embodiment, the interior of the box shell 1 is designed to be divided into two parts, the upper part is the electrical part, that is, the inverter structure position, and the lower part is the fan part, that is, the fan structure position; at the same time, the gas flow direction follows the air filter element at the air filter installation position 9 → inverter compartment 8 → fan compartment 12, the gas flows into the inverter compartment 8 from the air filter at the air filter installation position 9, passes through the air vent 14 into the fan compartment 12 after cooling the inverter, and is sucked into the fan after mixing with the motor cooling air. The gas sucked into the fan is discharged into the interior of the three-way box body 2 through the fan outlet installation pipe 11, and is discharged from the opening of the air outlet 4 through the three-way box body 2, which can reduce the volume of the external pipeline and effectively reduce the cost.

[0025] Embodiment 2, as Figure 5~Figure 6 As shown, the air adjustment structure 5 includes an air outlet pipe 51 fixedly connected to the outer surface of the three-way box body 2 at the air outlet 4 corresponding to the air outlet, the outer surface of the air outlet pipe 51 is sleeved with a mounting plate 52, the outer surface of the mounting plate 52 is fixedly connected with a fixed sleeve 53, a movable pipe 54 is slidably connected between the fixed sleeve 53 and the air outlet pipe 51, an adjustable air outlet 55 is provided on the outer surface of the movable pipe 54, a pulling spring 56 is connected between one end of the movable pipe 54 and the three-way box body 2, and a mute component 57 is connected to the outer surface of the movable pipe 54.

[0026] The silent component 57 includes a through hole 571 formed in the outer surface of the movable pipe 54. A fixing plate 572 is fixedly connected to the inner side of the movable pipe 54 corresponding to the through hole 571. Thrust components are arranged on both side surfaces of the fixing plate 572. The thrust component includes a thrust spring 573 with one end connected to the fixing plate 572. One end of the thrust spring 573 is connected to a fixing bracket 574. A roller 575 is rotatably connected to the inner side of the fixing bracket 574. A fixing frame 576 is fixedly connected to the surface of the fixing plate 572. A telescopic plate 577 is connected between the fixing bracket 574 and the fixing frame 576.

[0027] The mounting plate 52 is fixedly connected to the tee box body 2 by bolts. The movable pipe 54 is a hollow cylindrical structure with one end closed. The inner diameter of the fixed sleeve 53 is larger than the outer diameter of the movable pipe 54. The outer diameter of the air outlet pipe 51 is smaller than the inner diameter of the movable pipe 54. The movable pipe 54 slides along the length directions of the fixed sleeve 53 and the air outlet pipe 51. The elastic ends of the pulling spring 56 are respectively fixedly connected to the movable pipe 54 and the mounting plate 52. The air flow blown out through the air outlet pipe 51 thrusts the movable pipe 54 to realize the back-and-forth sliding of the movable pipe 54 along the length directions of the fixed sleeve 53 and the air outlet pipe 51. The adjustable air outlet 55 penetrates through the movable pipe 54. The number of the adjustable air outlets 55 is several groups and they are distributed in a circular array.

[0028] The through hole 571 penetrates through the movable pipe 54. The number of the through holes 571 is several groups and they are distributed in a circular array. The elastic ends of the thrust spring 573 are respectively fixedly connected to the fixing bracket 574 and the fixing plate 572. The fixing bracket 574 is in a "U" shape structure. The roller 575 is located inside the fixing bracket 574, and the roller 575 is rotatably connected to the fixing bracket 574 through a bearing. The roller 575 outside the fixing plate 572 is in rolling connection with the fixed sleeve 53, and the roller 575 inside the fixing plate 572 is in rolling connection with the air outlet pipe 51. The telescopic plate 577 is a plate-like structure with a telescopic function, and the telescopic direction is its own length direction. The two ends of the telescopic plate 577 are respectively hinged to the fixing bracket 574 and the fixing frame 576.

[0029] In this embodiment, during the use process, the size of the air outlet opening can be automatically adjusted according to the magnitude of the wind force blown by the frequency-converted fan, so that the size of the air outlet opening can always meet the exhaust requirements of the blower box body, and it will not occupy a larger volume. At the same time, no large noise will be generated during the process of adjusting the air outlet opening.

[0030] In summary, the working principle of the present invention is specifically as follows: During use, the frequency converter is used to adjust the operating frequency of the fan, and the fan is operated to inhale air from the air filter at the air filter installation position 9, and after cooling the frequency converter in the frequency converter compartment 8, the air is blown into the interior of the fan compartment 12 through the vent holes 14, and is mixed with the motor cooling air and inhaled by the fan. The gas inhaled by the fan is discharged into the interior of the three-way box body 2 through the fan outlet installation pipe 11, and is discharged from the opening of the air outlet 4 through the three-way box body 2. In this process, the wind is diverted through the fan outlet installation pipe 11, and the diverted gas is finally discharged from the opening of the air outlet 4 through the three-way box body 2. The diverting column 6 can play a better diversion role; In the process of adjusting the operation effect of the fan by frequency conversion, at low wind speed, the wind will be blown out directly from one end of the air outlet pipe 51, and then the airflow will be blown out through the part of the adjustable air outlet 55 exposed to the outside, and at medium wind speed, the wind will blow the movable pipe 54, so that the movable pipe 54 moves a distance toward the end away from the movable pipe 54. In this process, the pulling spring 56 will be stretched a distance, and at the same time, the opening of the adjustable air outlet 55 exposed to the outside of the air outlet pipe 51 and the fixed sleeve 53 will become larger, which is conducive to the wind blowing out. At the same time, at high wind speed, the movable pipe 54 will slide outward to a greater distance, forming a better ventilation and heat dissipation effect; In the process that the movable tube 54 moves back and forth along the length direction of the fixed sleeve 53 and the air outlet pipe 51, the pushing of the pushing spring 573 can make the roller 575 on the outside of the fixed plate 572 always fit the inner surface of the fixed sleeve 53, and at the same time, the roller 575 on the inside of the fixed plate 572 fits with the surface of the air outlet pipe 51, so that the movable tube 54 can be positioned during the movement, and the setting of the roller 575 can greatly reduce the noise during the movement of the movable tube 54 relative to the fixed sleeve 53 and the air outlet pipe 51, thereby achieving a better use effect.

[0031] It should be noted that the present invention adopts a two-layer structural design, which reduces the area occupied by the box and reduces costs. The gas flows through the inverter and enters the fan intake cabin, which improves the air cooling and heat dissipation efficiency, and can ensure that there is no external heat dissipation port, effectively improving the fan efficiency; and adopts a three-way box 2 with an external air outlet to integrate dual-channel gas, reduce the area occupied by the pipeline, and reduce costs.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-flow air suspension centrifugal blower housing, comprising a housing shell (1), characterized in that: The outer surface of one side of the box shell (1) is fixedly connected to a three-way box (2), the outer surface of the three-way box (2) is fixedly connected to a vent valve installation pipe (3), the outer surface of the three-way box (2) is provided with an air outlet (4), the outer surface of the three-way box (2) is connected to an air adjustment structure (5), the interior of the three-way box (2) is fixedly connected to a diverter column (6), the interior of the three-way box (2) is reserved with an electromagnetic ball valve installation position (7), the interior of the box shell (1) is provided with a frequency converter compartment (8), and the box An air filter installation position (9) is reserved on the surface of the housing (1); a display screen (10) is fixedly connected to an outer surface of one side of the housing (1); a fan outlet installation pipe (11) is fixedly connected to an inner surface of the housing (1) near the three-way housing (2); a fan compartment (12) is arranged inside the housing (1); a partition (13) is fixedly connected between the fan compartment (12) and the inverter compartment (8) on the inner wall surface of the housing (1); and a ventilation hole (14) is provided on the outer surface of the partition (13).

2. The high-flow air suspension centrifugal blower housing according to claim 1, characterized in that: The partition (13) is used to separate the area inside the box shell (1); the upper cavity is the inverter compartment (8), and the lower cavity is the fan compartment (12); the air vents (14) are used to facilitate cooling airflow from the inverter compartment (8) into the fan compartment (12); and the three-way box (2) is connected and fixed to the box shell (1) by bolts.

3. The high-flow air suspension centrifugal blower housing according to claim 2 is characterized in that: The fan outlet installation pipe (11) passes through the three-way box body (2) and the outer shell of the box body shell (1) to the interior of the box body shell (1), and one end extending into the box body shell (1) is connected to the air outlet end of the fan. The diverter column (6) is a triangular prism structure. The fan outlet installation pipes (11) are provided in two groups and are symmetrically distributed.

4. The high-flow air suspension centrifugal blower housing according to claim 1, characterized in that: The air adjustment structure (5) comprises an air outlet pipe (51) fixedly connected to the outer surface of the three-way box (2) at the corresponding air outlet (4); the outer surface of the air outlet pipe (51) is sleeved with a mounting plate (52); the outer surface of the mounting plate (52) is fixedly connected with a fixed sleeve (53); a movable pipe (54) is slidably connected between the fixed sleeve (53) and the air outlet pipe (51); an adjustable air outlet (55) is provided on the outer surface of the movable pipe (54); a pulling spring (56) is connected between one end of the movable pipe (54) and the three-way box (2); and a mute component (57) is connected to the outer surface of the movable pipe (54).

5. The high-flow air suspension centrifugal blower housing according to claim 4, characterized in that: The soundproof component (57) includes a through hole (571) formed in the outer surface of the movable pipe (54). A fixing plate (572) is fixedly connected to the inner side of the movable pipe (54) corresponding to the through hole (571). Jacking components are arranged on both side surfaces of the fixing plate (572). The jacking component includes a jacking spring (573) with one end connected to the fixing plate (572). One end of the jacking spring (573) is connected to a fixing bracket (574). A roller (575) is rotatably connected to the inner side of the fixing bracket (574). A fixing frame (576) is fixedly connected to the surface of the fixing plate (572). A telescopic plate (577) is connected between the fixing bracket (574) and the fixing frame (576).

6. The high-flow air suspension centrifugal blower housing according to claim 4, characterized in that: The mounting plate (52) is fixedly connected to the tee box body (2) by bolts. The movable pipe (54) is a hollow cylindrical structure with one end closed. The inner diameter of the fixed sleeve (53) is larger than the outer diameter of the movable pipe (54). The outer diameter of the air outlet pipe (51) is smaller than the inner diameter of the movable pipe (54).

7. The high-flow air suspension centrifugal blower housing according to claim 6, characterized in that: The movable pipe (54) slides along the length directions of the fixed sleeve (53) and the air outlet pipe (51). The elastic ends of the pulling spring (56) are respectively fixedly connected to the movable pipe (54) and the mounting plate (52).

8. The high-flow air suspension centrifugal blower housing according to claim 7, characterized in that: The air flow blown out through the air outlet pipe (51) jacks the movable pipe (54) to realize the reciprocating sliding of the movable pipe (54) along the length directions of the fixed sleeve (53) and the air outlet pipe (51). The adjustable air outlet (55) penetrates the movable pipe (54). The number of the adjustable air outlets (55) is several groups and they are distributed in a circular array.

9. The high-flow air suspension centrifugal blower housing according to claim 5, characterized in that: The through hole (571) penetrates the movable pipe (54). The number of the through holes (571) is several groups and they are distributed in a circular array. The elastic ends of the jacking spring (573) are respectively fixedly connected to the fixing bracket (574) and the fixing plate (572). The fixing bracket (574) is in a "U" shape structure. The roller (575) is located inside the fixing bracket (574), and the roller (575) is rotatably connected to the fixing bracket (574) through a bearing.

10. The high-flow air suspension centrifugal blower housing according to claim 9, characterized in that: The roller (575) outside the fixing plate (572) is in rolling connection with the fixed sleeve (53), and the roller (575) inside the fixing plate (572) is in rolling connection with the air outlet pipe (51). The telescopic plate (577) is a plate-like structure with a telescopic function, and the telescopic direction is its own length direction. The two ends of the telescopic plate (577) are respectively hinged to the fixing bracket (574) and the fixing frame (576).

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