CN219570380U - High-speed centrifugal fan - Google Patents
High-speed centrifugal fan Download PDFInfo
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- CN219570380U CN219570380U CN202320560936.4U CN202320560936U CN219570380U CN 219570380 U CN219570380 U CN 219570380U CN 202320560936 U CN202320560936 U CN 202320560936U CN 219570380 U CN219570380 U CN 219570380U
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- fan
- air
- valve
- cabinet body
- speed centrifugal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model relates to the field of fans and provides a high-speed centrifugal fan, which comprises a cabinet body and a fan arranged in the cabinet body, wherein the fan is arranged for bidirectional air inlet, a ventilation structure is arranged on the cabinet body in the air inlet direction of the fan so as to be communicated with external air, an air duct is arranged on an air outlet of the fan, the air duct is communicated with an air outlet hole of the cabinet body so as to form an air guide channel, an electric valve is arranged on the air duct, a detection component for detecting the surge degree of the fan is arranged on the fan, and the electric valve automatically adjusts the opening and closing degree according to the detection result of the detection component; according to the high-speed centrifugal fan, the opening and closing degree can be automatically adjusted through the electric valve, so that the surge problem of different degrees is solved.
Description
Technical Field
The utility model relates to the field of fans, in particular to a high-speed centrifugal fan.
Background
The high-speed centrifugal fan is a machine which can increase the pressure of gas and discharge the gas by means of the input mechanical energy, can be used for oxygenation of a culture water body in the water plant culture industry, and can be generally arranged in the culture water body to form a gas dispersing device.
The existing high-speed centrifugal fan is generally provided with an electromagnetic valve at the air guide channel of the fan to solve the surge problem, when the electromagnetic valve is in surge, the electromagnetic valve can be opened to be communicated with the inner air and the outer air of the air guide channel, the pressure in the air guide channel is reduced, the surge problem is solved, but the electromagnetic valve can only be fully opened or fully closed, when the fan is started and stopped, oxygen supply is not needed, the electromagnetic valve can be fully opened, but when the fan is in operation, the electromagnetic valve is fully opened, and at the moment, the air in the air guide channel can flow out from the valve of the electromagnetic valve completely, so that oxygen can not be continuously supplied to the aquaculture water body, and therefore, the high-speed centrifugal fan is required to solve the surge problem when the fan is in operation, and can keep continuous oxygen supply.
Disclosure of Invention
The utility model solves the problem of how to provide a high-speed centrifugal fan, which can solve the surge problem and keep continuous oxygen supply when the fan operates.
In order to solve the problems, the utility model provides a high-speed centrifugal fan, which comprises a cabinet body and a fan arranged in the cabinet body, wherein the fan is arranged in a bidirectional air inlet mode, a ventilation structure is arranged on the cabinet body in the air inlet direction of the fan so as to be communicated with external air, an air duct is arranged on an air outlet of the fan, the air duct is communicated with an air outlet hole of the cabinet body so as to form an air guide channel, an electric valve is arranged on the air duct, a detection component for detecting the surge degree of the fan is arranged on the fan, and the electric valve automatically adjusts the opening and closing degree according to the detection result of the detection component.
Optionally, the fan includes actuating mechanism, main shaft, turbine and volute, actuating mechanism passes through the support frame setting is in on the inner wall of the cabinet body, actuating mechanism's work end with the main shaft links to each other, the main shaft runs through the turbine sets up, so as to drive the turbine is rotatory, the volute cover is established on the turbine.
Optionally, a current collector is disposed on one side of the scroll far away from the driving mechanism, the current collector is disposed along the air inlet direction of the fan, and a port of the current collector is arc-shaped, so as to perform current collection air inlet on one side of the fan.
Optionally, the driving mechanism includes the shell and sets up motor in the shell, the work end of motor with the main shaft links to each other, so as to drive the main shaft is rotatory, the shell is kept away from one side of volute is the fretwork setting, is suitable for the opposite side of fan is taken in air.
Optionally, the detection component comprises a pressure sensor and a frequency converter, wherein the pressure sensor is arranged in the air guide channel of the fan so as to detect the pressure therein, and the frequency converter is arranged on one side of the driving mechanism and is electrically connected with the driving mechanism so as to detect the rotating speed of the driving mechanism.
Optionally, the electric valve includes electric actuator and valve, the one end setting of valve is in on the section of thick bamboo wall of air duct, and with the air duct is linked together, the other end of valve is opened and is set up, electric actuator sets up on the valve, in order to automatically regulated the degree of opening and closing of valve.
Optionally, the intelligent cabinet temperature control system further comprises a touch screen, wherein the touch screen is arranged on one side of the cabinet body and is electrically connected with the detection assembly and the electric valve.
Optionally, the air outlet end of the air duct is fixedly arranged on the air outlet hole of the cabinet body through a flange.
Optionally, the ventilation structure of the cabinet body is that one or two side plates on the cabinet body are provided with a plurality of holes, and one or two side plates are positioned in the air inlet direction of the fan.
Optionally, the volute is a structural member formed by welding two side plates and a circle of plates, the shape of the circle of plates is a volute, and hole doors are arranged at intervals on the outer sides of the circle of plates, so that the installation, the maintenance and the checking of the service condition of the fan are facilitated
Compared with the prior art, the high-speed centrifugal fan comprises the cabinet body and the fan arranged in the cabinet body, the arrangement of the cabinet body can play a silencing role when the fan works, reduce noise interference and prevent the fan from vibrating, the cabinet body is provided with the ventilation structure in the air inlet direction of the fan so as to communicate external air, the air inlet direction of the fan is the air inlet direction of the turbine in the fan, the arrangement of the ventilation structure can guide the external air to enter from the air inlet direction of the fan, thereby enabling the air to stably enter the fan, reducing the energy loss of air flow, the air outlet of the fan is provided with the air duct, the air duct is communicated with the air outlet hole of the cabinet body so as to form an air guide channel, the air outlet end of the air guide channel is suitable for being communicated with the air inlet end of the air dispersing device in the culture water body, the fan is provided with a detection component for detecting the surge degree of the fan, the detection component can detect the pressure in the air guide channel of the fan and the rotating speed of the fan at all times, and the normal pressure corresponding to the rotating speed of the fan at the moment is compared with the pressure detected in the air guide channel, so that the surge degree of the fan can be judged, the opening and closing degree of the electric valve can be automatically regulated according to the surge degree, for example, the electric valve can be fully opened when the fan is started and stopped and surge is serious, the accurate adjustment of the opening and closing degree of the electric valve can be carried out according to the judgment of the surge degree in the operation stage of the fan, thereby not only ensuring the reliable operation of the fan, but also avoiding the air from flowing out of the electromagnetic valve, the surge problem can be quickly and timely solved by reducing the pressure in the air guide pipeline by using the electric valve to provide a certain oxygen supply effect.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of a high-speed centrifugal fan in an embodiment of the utility model;
FIG. 2 is a schematic view of a portion of a high-speed centrifugal fan according to an embodiment of the present utility model;
FIG. 3 is a second schematic view of a portion of a high-speed centrifugal fan according to an embodiment of the utility model.
The reference numerals shown in the drawings: 1-a cabinet body; 2-a fan; 3-air duct; 4-an electric valve; 5-flanges; 6-supporting frames; 11-a ventilation structure; 21-a driving mechanism; 22-volute; 23-current collector; 211-a housing; 221-ring plate; 222-aperture door; 41-an electric actuator; 42-valve.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or illustrated embodiment of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.
The present utility model will be described in detail with reference to the accompanying drawings.
In order to solve the technical problems, as shown in fig. 1 and fig. 2, the embodiment of the utility model provides a high-speed centrifugal fan, which comprises a cabinet body 1 and a fan 2 arranged in the cabinet body 1, wherein the fan 2 is arranged in a bidirectional air inlet mode, a ventilation structure 11 is arranged on the cabinet body 1 in the air inlet direction of the fan 2 so as to be communicated with external air, an air duct 3 is arranged on an air outlet of the fan 2, the air duct 3 is communicated with an air outlet hole of the cabinet body 1 so as to form an air guide channel, an electric valve 4 is arranged on the air duct 3, a detection component for detecting the surge degree of the fan 2 is arranged on the fan 2, and the electric valve 4 automatically adjusts the opening and closing degree according to the detection result of the detection component.
It should be noted that, the high-speed centrifugal fan includes a cabinet body 1 and a fan 2 arranged in the cabinet body 1, the arrangement of the cabinet body 1 can play a silencing effect when the fan 2 works, reduce noise interference and prevent the fan 2 from vibrating, the cabinet body 1 is provided with a ventilation structure 11 in the air inlet direction of the fan 2 so as to communicate with external air, the air inlet direction of the fan 2 is the air inlet direction of a turbine in the fan 2, the arrangement of the ventilation structure 11 can guide the external air to enter from the air inlet direction of the fan 2, thereby enabling air to stably enter the fan 2, reducing energy loss of air flow, the air outlet of the fan 2 is provided with an air duct 3, the air duct 3 is communicated with the air outlet hole of the cabinet body 1 so as to form an air duct, the air outlet end of the air duct is suitable for being communicated with the air inlet end of an air dispersing device in a culture water body, the fan 2 is provided with a detection component for detecting the surge degree of the fan 2, the detection component can detect the pressure in the air guide channel of the fan 2 and the rotating speed of the fan 2 at any time, the normal pressure which should be corresponding to the rotating speed of the fan 2 at the moment is compared with the pressure detected in the air guide channel, so that the surge degree of the fan 2 can be judged, the opening and closing degree of the electric valve 4 can be automatically regulated according to the surge degree, for example, the electric valve 4 can be fully opened when the fan 2 is started and stopped in a stage of surge, the opening and closing degree of the electric valve 4 can be accurately regulated according to the judgment of the surge degree in the operation stage of the fan 2, and the reliable operation of the fan 2 can be maintained, but also can avoid the air flowing out from the electromagnetic valve completely, provide a certain oxygen supply effect, reduce the pressure in the air guide pipeline by using the electric valve 4, and also can solve the surge problem rapidly and timely.
In one embodiment of the present utility model, as shown in fig. 2, the fan 2 includes a driving mechanism 21, a main shaft, a turbine and a scroll 22, where the driving mechanism 21 is disposed on an inner wall of the cabinet 1 through a supporting frame 6, a working end of the driving mechanism 21 is connected to the main shaft, the main shaft penetrates through the turbine to drive the turbine to rotate, and the scroll 22 is sleeved on the turbine.
It should be noted that, the fan 2 includes actuating mechanism 21, main shaft, turbine and volute 22, actuating mechanism 21 passes through support frame 6 to be set up on the inner wall of the cabinet body 1, actuating mechanism 21's work end with the main shaft links to each other, and the drive the main shaft is rotatory, the turbine can include two impellers and wheel hub, two the impeller passes through the wheel hub and overlaps relatively to be established on the main shaft, thereby the main shaft can drive two the impeller is rotatory, thereby can make the two-way air inlet of fan 2 has improved air inlet efficiency, thereby has further improved air-out and oxygen supply efficiency, volute 22 cover is established on the turbine can assemble impeller exhaust high-pressure air, supplementary air-out.
In one embodiment of the present utility model, as shown in fig. 2, a current collector 23 is disposed on a side of the scroll 22 away from the driving mechanism 21, the current collector 23 is disposed along the air inlet direction of the fan 2, and a port of the current collector 23 is in a circular arc shape, so as to perform current collection air inlet on one side of the fan 2.
It should be noted that, a current collector 23 is disposed on a side of the scroll 22 far away from the driving mechanism 21, an air inlet channel is formed inside the current collector 23, and an air inlet direction of the air inlet channel is set along an air inlet direction of the fan 2, so that current collection and air inlet can be performed on one side of the fan 2, and a port of the current collector 23 is arc-shaped, so that air can uniformly enter the fan 2, and stability of air flow is improved.
In one embodiment of the present utility model, as shown in fig. 3, the driving mechanism 21 includes a housing 211 and a motor disposed in the housing 211, a working end of the motor is connected to the spindle to drive the spindle to rotate, and a side of the housing 211 away from the scroll 22 is hollow and is suitable for air intake on the other side of the fan 2.
It should be noted that, the driving mechanism 21 includes the shell 211 and sets up motor in the shell 211, the work end of motor runs through the shell 211 sets up, just the work end of motor with the main shaft links to each other in order to drive the main shaft is rotatory, the shell 211 is kept away from one side of volute 22 is the fretwork setting to can carry out the air inlet from this place, at this moment, the both sides of fan 2 all can the air inlet, thereby have improved air inlet efficiency, have further improved air-out and oxygenation efficiency, the fretwork setting of shell 211 also can strengthen the radiating effect of motor.
In one embodiment of the present utility model, the detecting assembly includes a pressure sensor disposed in the air guide passage of the blower 2 to detect the pressure therein, and a frequency converter disposed at one side of the driving mechanism 21 and electrically connected to the driving mechanism 21 to detect the rotational speed of the driving mechanism 21.
It should be noted that, the detection component includes a pressure sensor and a frequency converter, the pressure sensor is disposed in the wind guiding channel of the fan 2, and can detect the pressure in the wind guiding channel from time to time, the frequency converter is suitable for being disposed in the housing 211 and is located at one side of the motor, and the frequency converter is electrically connected with the motor, so as to detect the rotation speed of the motor, when the fan 2 works normally, a corresponding pressure value exists at a certain rotation speed, and when the detected pressure value is not the pressure value corresponding to the rotation speed of the detected motor, it is indicated that the fan 2 has surge, and the surge degree can be judged by depending on the difference value between the detected pressure value and the detected pressure value corresponding to the rotation speed.
In one embodiment of the present utility model, as shown in fig. 3, the electric valve 4 includes an electric actuator 41 and a valve 42, one end of the valve 42 is disposed on the wall of the air duct 3 and is in communication with the air duct 3, the other end of the valve 42 is disposed in an open manner, and the electric actuator 41 is disposed on the valve 42 to automatically adjust the opening and closing degree of the valve 42.
It should be noted that, one end of the valve 42 of the electric valve 4 is disposed in the middle of the air duct 3 and is communicated with the air duct 3, the other end of the valve 42 is disposed in an open manner and is located in the cabinet body 1, an electric actuator 41 is disposed on the valve 42, the electric actuator 41 can automatically adjust the opening and closing degree of the valve 42 according to the detection result of the pressure sensor and the frequency converter, and the other end of the valve 42 is disposed in the cabinet in an open manner, so that the air flow released by the valve 42 can be recycled into the fan 2.
In one embodiment of the present utility model, the electronic device further comprises a touch screen, wherein the touch screen is arranged on one side of the cabinet body 1 and is electrically connected with the detection assembly and the electric valve 4.
It should be noted that, the touch screen is electrically connected with the detecting component and the electric valve 4, that is, the touch screen is electrically connected with the pressure sensor, the frequency converter and the electric actuator 41, when the touch screen receives the pressure detected by the pressure sensor and the rotation speed detected by the frequency converter, parameter comparison is performed according to a preset table, for example, according to the received rotation speed, the table look-up table finds the pressure under the corresponding rotation speed, and then compares the pressure with the actually detected pressure, so as to determine the surge state and the degree, so that an instruction is output to enable the electric actuator 41 to control the opening and closing degree of the valve 42, and the setting of the touch screen can also facilitate the control of the high-speed centrifugal fan by a worker.
In one embodiment of the present utility model, as shown in fig. 2, the air outlet end of the air duct 3 is fixedly disposed on the air outlet hole of the cabinet body 1 through a flange 5.
It should be noted that, the air outlet end of air duct 3 is fixed to be set up through flange 5 on the air outlet hole of cabinet body 1, the air outlet end of air duct 3 is suitable for being linked together with the air dispersion device of aquaculture water, the fixed setting of flange 5 can keep the stability of the air outlet end of air duct 3, thereby can be convenient for air duct 3 with the intercommunication of air dispersion device.
In one embodiment of the present utility model, as shown in fig. 1, the ventilation structure 11 of the cabinet 1 is that one or two side plates on the cabinet 1 are provided with a plurality of openings, and one or two side plates are located in the air inlet direction of the fan 2.
It should be noted that, be provided with a plurality of trompils on the cabinet body 1 is located on one or two curb plates on the route of the air inlet direction of fan 2, thereby can be convenient for the air inlet of fan 2, thereby can further make the steady air inlet of fan 2 large-traffic.
In one embodiment of the present utility model, as shown in fig. 3, the scroll 22 is a structural member formed by welding two side plates and a ring plate 221, the ring plate 221 is in a volute shape, and hole doors 222 are arranged at intervals on the outer side of the ring plate 221, so as to facilitate installation, maintenance and inspection of the service condition of the fan 2.
The scroll 22 is a structural member formed by welding two side plates and a ring plate 221, the ring plate 221 is in a volute shape, so that air inside the fan 2 is led out after being converged, hole doors 222 are arranged at intervals outside the ring plate 221, and maintenance or staff can open the scroll 22 through the hole doors 222, thereby being capable of carrying out installation and maintenance of the fan 2 or checking the internal condition of the fan 2.
The above-described features are continuously combined with each other to form various embodiments not listed above, and are regarded as the scope of the present utility model described in the specification; and, it will be apparent to those skilled in the art from this disclosure that modifications and variations can be made without departing from the scope of the utility model defined in the appended claims.
Claims (10)
1. The utility model provides a high-speed centrifugal fan, its characterized in that, is in including the cabinet body (1) and setting fan (2) in the cabinet body (1), fan (2) are two-way air inlet setting, ventilation structure (11) have been seted up in the air inlet direction of fan (2) to cabinet body (1) to intercommunication outside air, be provided with air duct (3) on the air outlet of fan (2), air duct (3) with the apopore of cabinet body (1) is linked together, in order to form the wind-guiding passageway, be provided with motorised valve (4) on air duct (3), be provided with on fan (2) and be used for detecting the detection component of fan (2) degree, motorised valve (4) are according to the detection result automatically regulated switching degree of detection component.
2. The high-speed centrifugal fan according to claim 1, wherein the fan (2) comprises a driving mechanism (21), a main shaft, a turbine and a volute (22), the driving mechanism (21) is arranged on the inner wall of the cabinet body (1) through a supporting frame (6), the working end of the driving mechanism (21) is connected with the main shaft, the main shaft penetrates through the turbine to drive the turbine to rotate, and the volute (22) is sleeved on the turbine.
3. A high-speed centrifugal fan according to claim 2, characterized in that a current collector (23) is arranged on the side of the scroll (22) remote from the driving mechanism (21), the current collector (23) is arranged along the air inlet direction of the fan (2), and the port of the current collector (23) is arc-shaped so as to perform current collection air inlet on one side of the fan (2).
4. A high-speed centrifugal fan according to claim 3, wherein the driving mechanism (21) comprises a housing (211) and a motor arranged in the housing (211), a working end of the motor is connected with the main shaft to drive the main shaft to rotate, and one side of the housing (211) far away from the volute (22) is hollowed out and is suitable for air intake at the other side of the fan (2).
5. A high-speed centrifugal fan according to claim 2, wherein the detection assembly comprises a pressure sensor arranged in the air guiding channel of the fan (2) for detecting the pressure therein and a frequency converter arranged on one side of the driving mechanism (21) and electrically connected with the driving mechanism (21) for detecting the rotational speed of the driving mechanism (21).
6. The high-speed centrifugal fan according to claim 1, wherein the electric valve (4) comprises an electric actuator (41) and a valve (42), one end of the valve (42) is arranged on the cylinder wall of the air duct (3) and is communicated with the air duct (3), the other end of the valve (42) is arranged in an open mode, and the electric actuator (41) is arranged on the valve (42) to automatically adjust the opening and closing degree of the valve (42).
7. A high-speed centrifugal fan according to claim 1, further comprising a touch screen arranged on one side of the cabinet (1) and electrically connected to the detection assembly and the electrically operated valve (4).
8. The high-speed centrifugal fan according to claim 1, wherein the air outlet end of the air duct (3) is fixedly arranged on the air outlet hole of the cabinet body (1) through a flange (5).
9. A high-speed centrifugal fan according to claim 1, wherein the ventilation structure (11) of the cabinet (1) is that one or two side plates on the cabinet (1) are provided with a plurality of openings, and one or two side plates are positioned in the air inlet direction of the fan (2).
10. A high-speed centrifugal fan according to claim 2, wherein the scroll (22) is a structural member formed by welding two side plates and a ring plate (221), the ring plate (221) is in a volute shape, and hole doors (222) are arranged at intervals on the outer side of the ring plate (221) so as to facilitate installation, overhaul and check of the service condition of the fan (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320560936.4U CN219570380U (en) | 2023-03-15 | 2023-03-15 | High-speed centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320560936.4U CN219570380U (en) | 2023-03-15 | 2023-03-15 | High-speed centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570380U true CN219570380U (en) | 2023-08-22 |
Family
ID=87662328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320560936.4U Active CN219570380U (en) | 2023-03-15 | 2023-03-15 | High-speed centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570380U (en) |
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2023
- 2023-03-15 CN CN202320560936.4U patent/CN219570380U/en active Active
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