Electromagnetic valve structure for fan bypass

Abstract

The utility model relates to the technical field of magnetic suspension air blowers, and discloses an electromagnetic valve structure for a fan bypass, the electromagnetic valve structure comprises an electromagnetic coil and a sealing piece, a push rod is arranged in the electromagnetic coil, two ends of the push rod respectively penetrate through two sides of the electromagnetic coil, one end of the push rod is in contact with the sealing piece, and the other end of the push rod is provided with a reset spring; an air inlet channel and a sealing channel are formed in the two sides of the sealing piece, the air inlet channel is communicated with the sealing channel, a silica gel ball is arranged in the sealing channel, and a plurality of exhaust holes are formed in the sealing channel. According to the electromagnetic valve structure for the fan bypass, the discharging process of high-pressure gas can be completed in an extremely short time, impact caused by reverse backflow of the high-pressure gas due to sudden shutdown is effectively prevented, and then a magnetic suspension motor rotor and other key components are protected against damage.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of magnetic suspension air blower, in particular to an electromagnetic valve structure for fan bypass. BACKGROUND

[0002] In the modern industrial field, the magnetic suspension air blower has the advantages of high efficiency, energy saving, low noise and oil-free lubrication, and brings significant economic benefits to industrial production. The stability and running efficiency of the magnetic suspension air blower, as an important ventilation and ventilation equipment in industrial production, are crucial to the whole production process.

[0003] At present, the fluid control electromagnetic valve used in the magnetic suspension air blower equipment on the market is a standard specification, and the maximum diameter is generally within 5 mm. For example, the electromagnetic valve used in the magnetic suspension air blower at present cannot timely unload the high-pressure gas in the main pipeline when the equipment is powered off, which causes damage to the system due to the pressure of the main pipeline. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the above problems, the application provides an electromagnetic valve structure for fan bypass.

[0006] (II) Technical scheme

[0007] In order to solve the above problems, the application provides the following technical scheme: an electromagnetic valve structure for fan bypass, comprising an electromagnetic coil and a sealing element, the electromagnetic coil is internally provided with a push rod, the two ends of the push rod penetrate through the two sides of the electromagnetic coil respectively, one end of the push rod is in contact with the sealing element, and the other end of the push rod is provided with a reset spring;

[0008] The two sides of the sealing element are provided with an air inlet channel and a sealing channel, the air inlet channel is in communication with the sealing channel, a silica gel ball is arranged in the sealing channel, and a plurality of exhaust holes are arranged in the sealing channel;

[0009] When the electromagnetic coil is in a powered state, the push rod moves along the direction of the sealing channel under the action of the magnetic field, so that the exhaust holes are in a sealed state;

[0010] When the electromagnetic coil is in a powered-off state, the push rod is reset under the action of the reset spring, so that the exhaust holes are in an open state.

[0011] Preferably, the end of the push rod close to the sealing element is provided with a limiting baffle, and the other end of the push rod is provided with a spring washer.

[0012] Preferably, one end of the reset spring is fixedly connected on one side of the electromagnetic coil, and the other end of the reset spring is fixedly connected with the spring washer.

[0013] Preferably, the diameter of the silica gel head is greater than the diameter of the sealing channel, for sealing the exhaust hole on the sealing channel.

[0014] Preferably, a tee joint is connected to the air inlet of the air inlet channel on the sealing member, one side of the tee joint is connected to the main pipeline through a first air pipe, and the other side of the tee joint is connected to the bypass valve through a second air pipe.

[0015] Preferably, the main pipeline is connected to the magnetic suspension blower, and one side of the main pipeline is provided with a gas discharge branch, and the bypass valve is arranged on the gas discharge branch.

[0016] Preferably, the electromagnetic coil and the sealing member are respectively installed on the bottom plate by bolts or screws.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the application provides an electromagnetic valve structure for fan bypass, which has the following beneficial effects:

[0019] 1. The electromagnetic valve structure for fan bypass can complete the discharge process of high-pressure gas in a very short time, effectively prevents the impact caused by the reverse flow of high-pressure gas due to sudden stop, and further protects the magnetic suspension motor rotor and other key components from damage.

[0020] 2. The electromagnetic valve structure for fan bypass increases the channel diameter and adopts a multi-exhaust hole design, which not only improves the gas discharge efficiency, but also reduces the noise level.

[0021] Additional aspects and advantages of the application will be described in part below, some will become apparent from the following description, or will be understood by those skilled in the art through practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the application will become apparent and easily understood from the description of the embodiments, combined with the following drawings, in which:

[0023] Figure 1 is a structural schematic view of the electromagnetic valve structure for fan bypass of the application;

[0024] Figure 2 is one of the structural schematic views of the sealing member of the application;

[0025] Figure 3 is the second structural schematic view of the sealing member of the application;

[0026] Figure 4 is a working view of the electromagnetic valve in the energized state of the application;

[0027] Figure 5 Figure 6 is a working view of the gas flow in the pipeline in the on state of the application;

[0028] Figure 6 Figure 7 is a working view of the electromagnetic valve in the off state of the application;

[0029] Figure 7 Figure 8 is a working view of the gas flow in the pipeline in the off state of the application.

[0030] Reference signs: 1, electromagnetic coil; 11, push rod; 12, return spring; 13, limit stop; 14, spring washer; 2, sealing element; 21, air inlet channel; 22, sealing channel; 23, silica gel head; 24, air outlet hole; 3, tee joint; 31, first air pipe; 32, second air pipe; 4, main pipeline; 5, bypass valve; 6, air release branch; 7, bottom plate. DETAILED DESCRIPTION

[0031] The embodiments of the application will be described in detail below with reference to the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0032] The terms "first", "second" in the description and claims of the application can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0033] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Please refer to Figures 1-7 The present application provides a new technical solution: an electromagnetic valve structure for fan bypass, comprising an electromagnetic coil 1 and a sealing element 2, the electromagnetic coil 1 is provided with a push rod 11 inside, the two ends of the push rod 11 penetrate through the two sides of the electromagnetic coil 1 respectively, one end of the push rod 11 is in contact with the sealing element 2, and the other end is provided with a reset spring 12.

[0036] The two sides of the sealing element 2 are provided with an air inlet channel 21 and a sealing channel 22, the air inlet channel 21 is communicated with the sealing channel 22, the sealing channel 22 is provided with a silica gel ball 23, and a plurality of exhaust holes 24 are arranged in the sealing channel 22.

[0037] In the energized state of the electromagnetic coil 1, the push rod 11 moves along the direction of the sealing channel 22 under the action of the magnetic field, so that the exhaust hole 24 is in a sealed state;

[0038] In the de-energized state of the electromagnetic coil 1, the push rod 11 is reset under the action of the reset spring 12, so that the exhaust hole 24 is in an open state.

[0039] The electromagnetic valve structure can complete the unloading process of high-pressure gas in a very short time, effectively avoiding the impact caused by the reverse backflow of high-pressure gas at the moment of shutdown or power failure, thereby protecting the magnetic suspension motor rotor and other key components from damage.

[0040] In some embodiments, one end of the push rod 11 close to the sealing element 2 is provided with a limiting baffle 13, and the other end of the push rod 11 is provided with a spring washer 14; the limiting baffle 13 is used to limit the maximum stroke of the push rod 11, and the spring washer 14 enhances the force of the reset spring 12 on the push rod 11, ensuring its stable reset.

[0041] In some embodiments, one end of the reset spring 12 is fixedly connected on one side of the electromagnetic coil 1, and the other end of the reset spring 12 is fixedly connected with the spring washer 14.

[0042] In some embodiments, the diameter of the silica gel head 23 is larger than the diameter of the sealing channel 22, for sealing the exhaust holes 24 on the sealing channel 22; the larger silica gel head 23 can better adapt to different working conditions, providing more reliable sealing effect, and due to the softness and elasticity of the silica gel material itself, it can reduce the friction between the sealing channel 22 and prolong the service life.

[0043] In some embodiments, a three-way joint 3 is connected to the air inlet of the air inlet channel 21 on the sealing element 2, one side of the three-way joint 3 is connected to the main pipeline 4 through the first air pipe 31, and the other side of the three-way joint 3 is connected to the bypass valve 5 through the second air pipe 32.

[0044] In some embodiments, the main pipeline 4 is connected to a magnetic levitation blower, and the bypass valve 5 is arranged on the air release branch 6.

[0045] In some embodiments, the electromagnetic coil 1 and the sealing element 2 are respectively installed on the bottom plate 7 by bolts or screws; this fixing method not only facilitates disassembly and assembly, but also helps to maintain the relative positions between the components unchanged, ensuring the overall stability of the device.

[0046] In some embodiments, when the electromagnetic coil 1 is energized, the magnetic field generated will attract the push rod 11 to move in the direction of the sealing channel 22. At this time, the push rod 11 pushes the silica gel ball 23 to tightly fit in the sealing channel 22, thereby closing the exhaust holes 24 and preventing gas from flowing out. In this state, high-pressure gas passes through the three-way joint 3 and the second air pipe 32, and the bypass valve 5 is in a closed state under high pressure, so that the gas in the air inlet channel 21 can only continue to flow through the main pipeline 4 and will not leak from the bypass valve 5;

[0047] When the electromagnetic coil 1 is de-energized, the magnetic field disappears, and the return spring 12 pulls the push rod 11 back to the initial position. At this time, the push rod 11 no longer exerts pressure on the silica gel ball 23, and the silica gel ball 23 will move backward under the action of its own elasticity and gas flow, away from the exhaust holes 24, allowing the holes to open and allowing gas to be discharged. At the same time, the pressure on the bypass valve 5 decreases, and it automatically opens, allowing high-pressure gas to be quickly released through the air release branch 6.

[0048] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic valve structure for a fan bypass, characterized by, Including electromagnetic coil (1) and seal (2), electromagnetic coil (1) is internally provided with push rod (11), both ends of push rod (11) are respectively penetrated through both sides of electromagnetic coil (1), one end of push rod (11) is in contact with seal (2), and the other end is provided with reset spring (12); Both sides of the seal (2) are provided with air inlet channel (21) and sealing channel (22), the air inlet channel (21) is communicated with the sealing channel (22), the sealing channel (22) is provided with silica gel ball (23), and a plurality of exhaust holes (24) are arranged in the sealing channel (22); The electromagnetic coil (1) is in the energized state, the push rod (11) moves along the sealing channel (22) under the action of the magnetic field, so that the exhaust hole (24) is in a sealed state; The electromagnetic coil (1) is in the de-energized state, the push rod (11) is reset under the action of the reset spring (12), so that the exhaust hole (24) is in an open state.

2. An electromagnetic valve structure for a fan bypass according to claim 1, characterized in that, The end of the push rod (11) close to the seal (2) is provided with a limit baffle (13), and the other end of the push rod (11) is provided with a spring washer (14).

3. An electromagnetic valve structure for a fan bypass according to claim 2, characterized in that, One end of the reset spring (12) is fixedly connected on one side of the electromagnetic coil (1), and the other end of the reset spring (12) is fixedly connected with the spring washer (14).

4. The solenoid valve structure for a fan bypass according to claim 1, wherein The diameter of the silica gel ball (23) is greater than the diameter of the sealing channel (22), which is used for sealing the exhaust hole (24) on the sealing channel (22).

5. The solenoid valve structure for a fan bypass according to claim 1, wherein The three-way (3) is connected to the air inlet of the air inlet channel (21) on the seal (2), one side of the three-way (3) is communicated with the main pipeline (4) through the first air pipe (31), and the other side of the three-way (3) is communicated with the bypass valve (5) through the second air pipe (32).

6. An electromagnetic valve structure for a fan bypass according to claim 5, characterized in that, The main pipeline (4) is connected with the magnetic suspension blower, and one side of the main pipeline (4) is provided with a gas discharge branch (6), and the bypass valve (5) is arranged on the gas discharge branch (6).

7. The solenoid valve structure for a fan bypass according to claim 1, wherein The electromagnetic coil (1) and the seal (2) are respectively installed on the bottom plate (7) by bolts or screws.

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