High-pressure centrifugal fan

Abstract

The utility model discloses a high-pressure centrifugal ventilator, and belongs to the technical field of ventilation equipment. The structure comprises a driving motor, a current collector, an outer heat insulation plate and an air inlet grille, the driving motor is arranged above the current collector, an output belt is arranged at the output end of the driving motor in a matched mode, the lower portion of the output belt is matched with the interior of the current collector, and an upper top plate is arranged above the current collector. A sealing cover plate and a silencing clamping plate are arranged on the right side of the current collector in a matched mode. In the using process of the device, impellers in the centrifugal fan are improved, and the double impellers are matched, so that the collecting efficiency of gas in the flow collector is improved, the working efficiency of the centrifugal fan is guaranteed, meanwhile, the strength of components in the centrifugal fan can be further enhanced, and the later maintenance cost is reduced; and meanwhile, the noise elimination clamping plate is added, noise elimination treatment is conducted in the working process of the centrifugal fan, and the noise decibel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a high-pressure centrifugal ventilator. Background Technique

[0002] A ventilator is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas, belonging to a driven fluid machine. Among them, the ventilator includes a centrifugal ventilator, an axial-flow ventilator, a mixed-flow fan and a duct fan. Among them, the centrifugal ventilator is mainly used for the transportation and discharge of air flow, and has the characteristics of small volume, low noise and large air volume.

[0003] During the current operation of the centrifugal ventilator, due to the large air volume required by the construction requirements, the internal impeller is prone to deformation during the high-intensity operation of the centrifugal ventilator, resulting in high costs during the later maintenance process, and at the same time, it will also affect the working efficiency of the centrifugal ventilator. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-pressure centrifugal ventilator to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-pressure centrifugal ventilator includes a driving motor, a collector, an outer heat insulation plate and an air inlet grille. The driving motor is arranged above the collector. A controller is arranged at the upper side position of the driving motor. An output belt is arranged at the output end of the driving motor. The lower part of the output belt is matched with the inside of the collector. An outer heat insulation plate is arranged at the outer side position of the collector. An air inlet grille is arranged at the center position of the outer heat insulation plate. An upper top plate is arranged above the collector. A sealing cover plate and a sound-absorbing clamping plate are arranged at the right side position of the collector.

[0007] As a further scheme of the utility model: The collector includes a main rotating shaft, a rotating shaft limit buckle, a coupling, a cover plate, a front disk impeller, a rear disk impeller, a curved impeller blade and a guide groove. The main rotating shaft is arranged at the center position inside the collector, and the main rotating shaft is matched with the output belt. A coupling is arranged between the main rotating shaft and the output belt. A rotating shaft limit buckle is coaxially arranged on the main rotating shaft. A front disk impeller and a rear disk impeller are coaxially arranged at the right end position of the main rotating shaft. The front disk impeller is arranged on the left side of the rear disk impeller, and a cover plate is arranged on the left side of the front disk impeller. A plurality of curved impeller blades distributed in an array are arranged inside the rear disk impeller. A guide groove is arranged at the outer side position of the rear disk impeller.

[0008] As a further solution of the present utility model: The front disk impeller is arranged on the left side of the sealing cover plate, and a sound-absorbing clamping plate is attached to the right side of the sealing cover plate, and the rear disk impeller is arranged on the right side of the sound-absorbing clamping plate.

[0009] As a further solution of the present utility model: The axial dimension of the front disk impeller is smaller than that of the rear disk impeller.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: During the use of the device, by improving the impeller inside the centrifugal ventilator and through the cooperation of double impellers, the gas collection efficiency inside the air collector becomes higher. While ensuring the working efficiency of the centrifugal ventilator, it can also further strengthen the strength of the internal components of the centrifugal ventilator and reduce the later maintenance cost; at the same time, a sound-absorbing clamping plate is added to perform sound-absorbing treatment during the working process of the centrifugal ventilator and reduce the noise decibel. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structure diagram of the present utility model;

[0012] Figure 2 It is a component structure diagram of the air collector of the present utility model.

[0013] In the figure: 1, driving motor; 2, controller; 3, output belt; 4, air collector; 5, outer heat insulation plate; 6, air intake grille; 7, upper top plate; 8, sealing cover plate; 9, sound-absorbing clamping plate; 101, main rotating shaft; 102, rotating shaft limit buckle; 103, coupling; 104, cover plate; 105, front disk impeller; 106, rear disk impeller; 107, curved impeller blade; 108, guide groove. Specific Embodiments

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0015] Embodiment 1

[0016] Please refer to Figure 1-2, this embodiment provides a high-pressure centrifugal ventilator, which includes a driving motor 1, a collector 4, an outer heat insulation plate 5 and an air intake grille 6. The driving motor 1 is arranged above the collector 4. A controller 2 is arranged on the upper side of the driving motor 1. An output belt 3 is arranged at the output end of the driving motor 1. The lower part of the output belt 3 is matched with the inside of the collector 4. An outer heat insulation plate 5 is arranged on the outer side of the collector 4. An air intake grille 6 is arranged at the center of the outer heat insulation plate 5. An upper top plate 7 is arranged above the collector 4. A sealing cover plate 8 and a sound-absorbing splint 9 are arranged on the right side of the collector 4. During the working process of the device, the external air flow is collected by the collector 4, enters the inside of the collector 4 through the air intake grille 6, and then the air is compressed inside the collector 4 to generate wind pressure, which is transmitted out at the right side of the collector 4.

[0017] Further, the collector 4 includes a main rotating shaft 101, a rotating shaft limit buckle 102, a coupling 103, a cover plate 104, a front disk impeller 105, a rear disk impeller 106, curved impeller blades 107 and a guiding groove 108. The main rotating shaft 101 is arranged at the center inside the collector 4 and is matched with the output belt 3. A coupling 103 is arranged between the main rotating shaft 101 and the output belt 3. A rotating shaft limit buckle 102 is coaxially arranged on the main rotating shaft 101. A front disk impeller 105 and a rear disk impeller 106 are coaxially arranged at the right end of the main rotating shaft 101. The front disk impeller 105 is arranged on the left side of the rear disk impeller 106, and a cover plate 104 is arranged in a matching way on the left side of the front disk impeller 105. A plurality of curved impeller blades 107 distributed in an array are arranged inside the rear disk impeller 106. A guiding groove 108 is arranged on the outer side of the rear disk impeller 106.

[0018] The main rotating shaft 101 inside the collector 4 is matched with the driving motor 1 and the output belt 3 and rotates through the main rotating shaft 101, so as to drive the front disk impeller 105 and the rear disk impeller 106 to rotate coaxially. The cover plate 104 can improve the actual strength of the front disk impeller 105, and at the same time can further reduce the gas leakage between the blades and the external shell during the working process of the front disk impeller 105 and strengthen the air pressure difference.

[0019] Furthermore, the front disk impeller 105 is arranged on the left side of the sealing cover plate 8, and a sound-absorbing splint 9 is attached to the right side of the sealing cover plate 8. The rear disk impeller 106 is arranged on the right side of the sound-absorbing splint 9. The sealing cover plate 8 can enhance the air collection efficiency of the collector 4, and at the same time, the internally arranged sound-absorbing splint 9 can further reduce the noise generated during the working process of the device and perform sound absorption treatment on the inside of the device.

[0020] Furthermore, the axial dimension of the front disk impeller 105 is smaller than that of the rear disk impeller 106. The front disk impeller 105 generates a relatively large wind pressure, while the rear disk impeller 106 generates a relatively small wind pressure, thereby forming a wind pressure difference for wind pressure output at the impeller position at the right end of the air collector 4. At the same time, compared with a single impeller, the double impeller design can generate a larger flow rate, and the head of the double impeller is also much higher than that of the single impeller, which can further strengthen the wind pressure difference and increase the air outlet speed of the high-pressure centrifugal ventilator.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. The element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0022] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high pressure centrifugal fan, characterized in that: The invention comprises a driving motor (1), a current collector (4), an external heat insulation board (5) and an air intake grille (6), wherein the driving motor (1) is arranged above the current collector (4), a controller (2) is arranged on the upper side of the driving motor (1), an output belt (3) is arranged on the output end of the driving motor (1), the lower part of the output belt (3) is matched with the inside of the current collector (4), an external heat insulation board (5) is arranged on the outer side of the current collector (4), an air intake grille (6) is arranged at the center of the external heat insulation board (5), an upper top board (7) is arranged above the current collector (4), and a sealing cover board (8) and a muffler clamp (9) are arranged on the right side of the current collector (4).

2. A high pressure centrifugal fan according to claim 1, characterized in that: The collector (4) comprises a main rotating shaft (101), a rotating shaft limiting buckle (102), a coupling (103), a cover plate (104), a front disc impeller (105), a rear disc impeller (106), a curved impeller blade (107) and a guide groove (108); the main rotating shaft (101) is arranged at the center position of the inner side of the collector (4), and the main rotating shaft (101) cooperates with the output belt (3); a coupling (103) is arranged between the main rotating shaft (101) and the output belt (3); the main rotating shaft (101) ) is coaxially arranged with a shaft limiting buckle (102), a front disc impeller (105) and a rear disc impeller (106) are coaxially arranged at the right end of the main shaft (101), the front disc impeller (105) is arranged at the left side of the rear disc impeller (106), and a cover disc (104) is arranged on the left side of the front disc impeller (105), a plurality of array-distributed curved impeller blades (107) are arranged inside the rear disc impeller (106), and a guide groove (108) is arranged at the outer side of the rear disc impeller (106).

3. A high pressure centrifugal fan according to claim 2, characterized in that: The front disc impeller (105) is arranged on the left side of the sealing cover plate (8), and a silencer clamping plate (9) is arranged on the right side of the sealing cover plate (8), and the rear disc impeller (106) is arranged on the right side of the silencer clamping plate (9).

4. A high pressure centrifugal fan according to claim 2, characterized in that: The front disk impeller (105) has an axial dimension smaller than that of the rear disk impeller (106).

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