Quick-opening valve for magnetic suspension air blower and magnetic suspension air blower

Abstract

The utility model provides a quick-opening valve for a magnetic suspension air blower and the magnetic suspension air blower, the quick-opening valve for the magnetic suspension air blower comprises a first ventilation pipe, a second ventilation pipe and a valve assembly, and the second ventilation pipe communicates with the first ventilation pipe and the outside atmosphere; the valve assembly comprises a valve body, a valve element, a diaphragm, a reset piece and a communicating piece, the valve body is located on the first ventilation pipe, the valve element in the first ventilation pipe is connected with the diaphragm into a whole through a connecting piece, the diaphragm deforms in the valve body to drive the valve element to move, and the communicating piece communicates a cavity, located on the second side of the diaphragm, of the valve body with the first ventilation pipe; when the valve element of the quick-opening valve for the magnetic suspension air blower moves to the first position, the first end of the second ventilation pipe and the first ventilation pipe are disconnected through the valve element; when the reset piece provides elastic force to enable the valve element to move to the second position, gas in the first ventilation pipe is directly exhausted through the second ventilation pipe, on-off of the quick-opening valve is controlled in a self-adaptive mode according to the pressure in the first ventilation pipe, and normal operation of the magnetic suspension air blower is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid machinery, in particular to a quick-opening valve for a magnetic levitation blower and a magnetic levitation blower. Background Art

[0002] The magnetic levitation blower is directly driven by a high-speed motor and its speed is adjusted by a frequency converter. It uses an active magnetic levitation bearing system to support the internally rotating magnetic levitation bearing without contact and wear through a controllable electromagnetic force. The magnetic levitation bearing is directly connected to the impeller, with zero transmission loss, thereby achieving the effects of successfully transporting gas, no wear inside the machine, low noise, and no need for lubrication.

[0003] Currently, when the magnetic levitation blower stops operating or suddenly loses power, due to inertia, the gas in the pipeline will try to flow backward, which may damage the blower. Generally, a check valve is installed at the air outlet of the air outlet duct. The check valve will automatically close in this situation to prevent the gas from flowing backward, thereby protecting the equipment from damage.

[0004] However, at the initial stage of starting or after closing the magnetic levitation blower, the formed air volume is small, and the wind force in the air outlet duct cannot be used to open the check valve, and the generated wind cannot be discharged in time, thereby increasing the internal pressure of the magnetic levitation blower and affecting the normal use of the magnetic levitation blower. Summary of the Utility Model

[0005] The purpose of this application is to provide a quick-opening valve for a magnetic levitation blower to solve the problem in the prior art that the magnetic levitation blower cannot discharge gas in time when the generated wind force is small; in addition, this application also provides a magnetic levitation blower including the quick-opening valve for a magnetic levitation blower.

[0006] To achieve this purpose, this application adopts the following technical solutions:

[0007] This application provides a quick-opening valve for a magnetic levitation blower, which includes a first ventilation pipe, a second ventilation pipe, and a valve assembly, wherein:

[0008] The first end of the second ventilation pipe is communicated with the first ventilation pipe, and the second end of the second ventilation pipe is communicated with the outside atmosphere;

[0009] The valve assembly includes a valve body, a valve core, a diaphragm, a reset member, and a communication member. The valve body is installed on the first ventilation pipe. The valve core is arranged on the first side of the diaphragm and is located inside the first ventilation pipe. The valve core is connected to the diaphragm as a whole through a connecting member. The diaphragm is hermetically arranged inside the valve body. The diaphragm can deform under the action of air pressure to drive the valve core to move to a first position or a second position. The first end of the communication member is communicated with the chamber of the valve body located on the second side of the diaphragm, and the second end of the communication member is communicated with the first ventilation pipe;

[0010] When the valve core moves to the first position, the valve core disconnects the first end of the second ventilation pipe from the first ventilation pipe;

[0011] The reset member is configured to provide an elastic force for the valve core to move from the first position to the second position. When the valve core moves to the second position, the gas in the first ventilation pipe is directly discharged through the second ventilation pipe.

[0012] Optionally, the reset member includes a reset spring and a limiting member. The limiting member is installed between the valve core and the diaphragm. The connecting member passes through the limiting member, and the reset spring is sleeved on the connecting member. The first end of the reset spring abuts against the limiting member, and the second end of the reset spring abuts against the diaphragm.

[0013] Optionally, the second ventilation pipe is perpendicularly arranged with respect to the first ventilation pipe.

[0014] Optionally, the connecting member includes an air guiding pipe and an electromagnetic valve. The first end of the air guiding pipe is connected to the chamber of the valve body located on the second side of the diaphragm, the second end of the air guiding pipe is connected to the first ventilation pipe, and the electromagnetic valve is installed on the air guiding pipe. The electromagnetic valve is configured to control the on / off of the air guiding pipe.

[0015] Optionally, the first end of the connecting member is connected to the center of the diaphragm, and the second end of the connecting member is connected to the center of the valve core. The diaphragm moves towards the valve core direction under the action of air pressure at the center, so as to drive the valve core to move to the first position.

[0016] Optionally, the air guiding pipe is made of a flexible ventilation pipe.

[0017] Optionally, the inner wall of the first ventilation pipe is smooth.

[0018] A magnetic levitation blower includes an air outlet duct and a quick-opening valve for the magnetic levitation blower as described above, wherein:

[0019] The first end of the first ventilation pipe is connected to the air outlet duct, and a check valve is provided at the rear of the connection between the first end of the first ventilation pipe and the air outlet duct on the air outlet duct;

[0020] When the air pressure in the air outlet duct reaches a preset value, the valve core moves to the first position and the check valve opens.

[0021] Compared with the prior art, a quick-opening valve for a magnetic levitation blower proposed by the present application has the following advantages:

[0022] 1) Through the change of the air pressure in the first ventilation pipe, the self-adaptive on / off of the quick-opening valve is realized, with a simple structure and ingenious design; when configured on a magnetic levitation blower, when the magnetic levitation blower stops normally or emergently, the quick-opening valve quickly opens, and the air in the air outlet duct is directly discharged to the atmosphere, and the pressure in the pipeline quickly decreases, which can avoid the surge area of the motor and ensure the normal operation of the magnetic levitation blower.

[0023] 2) By adopting the method of combining a diaphragm with a valve core, the rapid response to the air pressure in the first ventilation pipe is achieved, ensuring the rapid opening and closing of the quick-opening valve.

[0024] 3) By connecting the diaphragm and the valve core in a central manner, it is not only convenient to maintain the uniform distribution of force during the deformation of the diaphragm, but also ensures that the deformation of the diaphragm under the action of air pressure can be accurately transmitted to the valve core, improving the efficiency and accuracy of the movement of the valve core.

[0025] 4) By driving the movement of the diaphragm through the rebound of the return spring after compression, the connecting piece is synchronously driven to drive the valve core to automatically return from the first position to the second position. This not only facilitates the rapid restoration of ventilation and improves work efficiency, but also prevents failures or damages caused by excessive movement of the valve core, increasing the reliability and stability of the system. Description of the Drawings

[0026] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the background art and the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present application and these drawings.

[0027] Figure 1 It is a sectional view of the valve core of the quick-opening valve for a magnetic levitation blower provided by the embodiment of the present application when it is in the first position;

[0028] Figure 2 It is a sectional view of the valve core of the quick-opening valve for a magnetic levitation blower provided by the embodiment of the present application when it is in the second position. Detailed Embodiments

[0029] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figure 1 and Figure 2 As shown, a quick-opening valve for a magnetic levitation blower provided by an embodiment of the present application includes a first ventilation pipe 10, a second ventilation pipe 20, and a valve assembly 30, wherein:

[0031] The first end of the second ventilation pipe 20 is communicated with the first ventilation pipe 10, and the second end of the second ventilation pipe 20 is communicated with the outside atmosphere;

[0032] The valve assembly 30 includes a valve body 31, a valve core 32, a diaphragm 33, a reset member 34, and a communication member 35. The valve body 31 is installed on the first ventilation pipe 10. The valve core 32 is disposed on the first side of the diaphragm 33 and is located in the first ventilation pipe 10. The valve core 32 is connected to the diaphragm 33 as a whole through a connecting member 36. The diaphragm 33 is sealingly disposed in the valve body 31. The diaphragm 33 can be deformed under the action of air pressure to drive the valve core 32 to move to the first position or the second position. The first end of the communication member 35 is communicated with the chamber of the valve body 31 located on the second side of the diaphragm 33, and the second end of the communication member 35 is communicated with the first ventilation pipe 10;

[0033] When the valve core 32 moves to the first position, the valve core 32 disconnects the first end of the second ventilation pipe 20 from the first ventilation pipe 10;

[0034] The reset member 34 is configured to provide an elastic force for the valve core 32 to move from the first position to the second position. When the valve core 32 moves to the second position, the gas in the first ventilation pipe 10 is directly discharged through the second ventilation pipe 20.

[0035] Through the cooperation of the first ventilation pipe 10, the second ventilation pipe 20 and the valve assembly 30, the automatic on-off inside the quick-opening valve is realized to timely discharge the air generated inside the mechanism. This not only avoids damage caused by gas accumulation inside the mechanism, but also has a simple structure and ingenious design, improving the efficiency of gas discharge.

[0036] In one embodiment, the reset member 34 includes a reset spring 340 and a limiting member 341. The limiting member 341 is installed between the valve core 32 and the diaphragm 33. The connecting member 36 penetrates through the limiting member 341. The reset spring 340 is sleeved on the connecting member 36. The first end of the reset spring 340 abuts against the limiting member 341, and the second end of the reset spring 340 abuts against the diaphragm 33.

[0037] Through the cooperation of the reset spring 340 and the limiting member 341, the connecting member 36 is enabled to drive the valve core 32 to automatically return from the first position to the second position. This not only facilitates the rapid restoration of ventilation and improves work efficiency, but also prevents failures or damages caused by excessive movement of the valve core 32, increasing the reliability and stability of the system.

[0038] In one embodiment, the second ventilation pipe 20 is perpendicularly arranged with respect to the first ventilation pipe 10.

[0039] Through the perpendicular connection between the second ventilation pipe 20 and the first ventilation pipe 10, it helps to reduce the resistance encountered by the air flow at the turning point for rapid discharge, improving the overall work efficiency.

[0040] In one embodiment, the connecting member 35 includes an air guiding pipe 350 and an electromagnetic valve 351. The first end of the air guiding pipe 350 is connected to the chamber of the valve body 31 located on the second side of the diaphragm 33, the second end of the air guiding pipe 350 is connected to the first ventilation pipe 10, and the electromagnetic valve 351 is installed on the air guiding pipe 350. The electromagnetic valve 351 is configured to control the on-off of the air guiding pipe 350.

[0041] Through the cooperation of the air guiding pipe 350 and the electromagnetic valve 351, the precise control of the gas flow direction and flow rate is realized, and then the accurate control of the movement of the valve core 32 is achieved, improving the accuracy of the system operation.

[0042] In one embodiment, the first end of the connecting member 36 is connected to the center of the diaphragm 33, the second end of the connecting member 36 is connected to the center of the valve core 32, and the diaphragm 33 moves towards the valve core 32 direction under the action of air pressure at the center to drive the valve core 32 to move to the first position.

[0043] By adopting the central connection method between the diaphragm 33 and the valve core 32, it not only facilitates the uniform distribution of force during the deformation process of the diaphragm 33, but also ensures that the deformation of the diaphragm 33 under the action of air pressure can be accurately transmitted to the valve core 32, improving the efficiency and accuracy of the movement of the valve core 32.

[0044] In one embodiment, the air intake pipe 350 is a flexible ventilation pipe.

[0045] By setting the air intake pipe 350 as a flexible ventilation pipe, it is not only convenient for different pipe installation environments, but also not easily broken, improving the applicability and safety of the system.

[0046] In one embodiment, the inner wall of the first ventilation pipe 10 is smooth.

[0047] By setting the inner wall of the first ventilation pipe 10 to be smooth, the friction between the valve core 32 and the inner wall of the pipe is reduced, facilitating the accurate and efficient movement of the valve core 32 within the first ventilation pipe 10.

[0048] A magnetic levitation blower, comprising an air outlet duct and a quick-opening valve for the magnetic levitation blower as described above, wherein:

[0049] The first end of the first ventilation pipe 10 is communicated with the air outlet duct 40, and a check valve 41 is provided at the rear of the air outlet duct 40 at the connection of the first end of the first ventilation pipe 10 and the air outlet duct 40;

[0050] When the air pressure in the air outlet duct 40 reaches a preset value, the valve core 32 moves to the first position and the check valve opens.

[0051] Specifically, when the magnetic levitation blower is just started, the generated air volume is small, and the gas pressure in the air outlet duct 40 is less than the opening pressure of the check valve 41. At this time, the quick-opening valve is in the open state (the valve core 32 is in the second position), and the air passes through the first ventilation pipe 10 and the second ventilation pipe 20 in sequence and is directly discharged quickly; when the magnetic levitation blower reaches a predetermined speed, the generated air volume is large, and the gas pressure in the air outlet duct 40 is greater than the opening pressure of the check valve 41. At this time, the quick-opening valve is in the closed state (the valve core 32 is in the first position), the check valve 41 opens, and the air is directly discharged from the air outlet 42 of the air outlet duct 40.

[0052] By configuring a quick-opening valve on the magnetic levitation blower, when the magnetic levitation blower stops normally or emergently, the quick-opening valve quickly opens, and the air in the air outlet duct 40 is directly discharged to the atmosphere, and the pressure in the pipeline quickly decreases, which can avoid the surge area of the motor and ensure the normal operation of the magnetic levitation blower.

[0053] The above embodiments only illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, there are various changes and modifications to the present application, and these changes and modifications all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A quick-opening valve for a magnetic levitation blower, characterized in that, The quick-opening valve for a magnetic levitation blower includes a first ventilation pipe, a second ventilation pipe, and a valve assembly, where: The first end of the second ventilation pipe is in communication with the first ventilation pipe, and the second end of the second ventilation pipe is in communication with the outside atmosphere; The valve assembly includes a valve body, a valve core, a diaphragm, a reset member, and a communication member. The valve body is installed on the first ventilation pipe. The valve core is disposed on the first side of the diaphragm and within the first ventilation pipe. The valve core is integrally connected to the diaphragm through a connecting member. The diaphragm is sealingly disposed within the valve body. The diaphragm can be deformed under the action of air pressure to drive the valve core to move to a first position or a second position. The first end of the communication member is in communication with the chamber of the valve body located on the second side of the diaphragm, and the second end of the communication member is in communication with the first ventilation pipe; When the valve core moves to the first position, the valve core disconnects the first end of the second ventilation pipe from the first ventilation pipe; The reset member is configured to provide an elastic force for the valve core to move from the first position to the second position. When the valve core moves to the second position, the gas in the first ventilation pipe is directly discharged through the second ventilation pipe.

2. The quick-opening valve for a magnetic levitation blower according to claim 1, characterized in that, The reset member includes a reset spring and a limiting member. The limiting member is installed between the valve core and the diaphragm. The connecting member passes through the limiting member. The reset spring is sleeved on the connecting member. The first end of the reset spring abuts against the limiting member, and the second end of the reset spring abuts against the diaphragm.

3. The quick-opening valve for a magnetic levitation blower according to claim 1, characterized in that, The second ventilation pipe is perpendicular to the first ventilation pipe.

4. The quick-opening valve for a magnetic levitation blower according to claim 1, characterized in that, The communication member includes an air guide pipe and an electromagnetic valve. The first end of the air guide pipe is in communication with the chamber of the valve body located on the second side of the diaphragm, and the second end of the air guide pipe is in communication with the first ventilation pipe. The electromagnetic valve is installed on the air guide pipe, and the electromagnetic valve is configured to control the on / off of the air guide pipe.

5. The quick-opening valve for a magnetic levitation blower according to claim 1, characterized in that, The first end of the connecting member is connected to the center of the diaphragm, and the second end of the connecting member is connected to the center of the valve core. The diaphragm moves towards the valve core direction under the action of air pressure at the center to drive the valve core to move to the first position.

6. The quick-opening valve for a magnetic levitation blower according to claim 4, wherein The air guide pipe is made of a flexible ventilation pipe.

7. The quick-opening valve for a magnetic levitation blower according to claim 1, characterized in that The inner wall of the first ventilation pipe is smooth.

8. A magnetic levitation blower, characterized in that, The magnetic levitation blower includes an air outlet duct and the quick-opening valve for a magnetic levitation blower according to any one of claims 1-7, where: The first end of the first ventilation pipe is in communication with the air outlet duct, and a check valve is provided at the rear of the connection between the first end of the first ventilation pipe and the air outlet duct in the air outlet duct; When the air pressure in the air outlet duct reaches a preset value, the valve core moves to the first position and the check valve opens.

Images