Exhaust device based on Tesla valve principle

Abstract

The utility model discloses an exhaust device based on a Tesla valve principle, which relates to the technical field of exhaust devices and comprises a base plate, a Tesla choke groove is arranged at the inner end of the base plate, an air outlet is arranged at the upper end of the base plate, a flaring joint is mounted at the middle end of the air outlet, and an air inlet is arranged at the lower end of the base plate. Through the arrangement of the base plate, the air outlet, the flaring connector, the air inlet and the Tesla flow blocking groove, the flaring connector is installed and connected with the air outlet and the air inlet formed in the base plate, the Tesla flow blocking groove formed in the middle end is combined, and the arrangement is based on the principle of a Tesla valve; when fluid flows reversely, each obstacle can form a violent impact blocking effect, so that the one-way conduction effect is achieved, the welding workload of the device can be correspondingly reduced, the manufacturing cost of the device is reduced, and the use practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, specifically to a ventilation device based on the Tesla valve principle. Background Technology

[0002] A Tesla valve is a one-way valve with no moving parts. In ventilation systems of certain special work areas, such as chemical workshops and electronic chip manufacturing workshops, exhaust devices based on the Tesla valve principle can prevent polluted air from entering the area, maintaining good air quality and a good working environment. Existing exhaust devices use a sheet metal splicing method, requiring a separate ball valve or check valve at the drain point. They are also relatively large in size, use a lot of sheet metal, and are costly. They do not have a backflow prevention function, and their installation location is limited, making them inconvenient to carry. Therefore, an exhaust device based on the Tesla valve principle is needed.

[0003] Existing ventilation devices fail to effectively improve their usability, installation flexibility, and ease of disassembly and maintenance. Therefore, there is an urgent need for a ventilation device based on the Tesla valve principle. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an exhaust device based on the Tesla valve principle to solve the problems that existing exhaust devices cannot effectively improve the practicality of the device, the flexibility of the device installation, and the convenience of the device disassembly and maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an exhaust device based on the Tesla valve principle, comprising a base plate, wherein a Tesla flow-blocking groove is provided at the inner end of the base plate, an air outlet is provided at the upper end of the base plate, a flared connector is installed at the middle end of the air outlet, and an air inlet is provided at the lower end of the base plate.

[0006] A slot is provided at one end of the base plate, and an internal washer is installed inside the slot. A screw is installed at one end of the base plate, and a PVC transparent cover is installed at one end of the screw.

[0007] The base plate is fitted with mounting ears at its outer end.

[0008] Preferably, the flared connector is threaded to the base plate through an air outlet, and the flared connector is arranged symmetrically with respect to the central axis of the base plate.

[0009] Preferably, the built-in washer is engaged with the base plate via a slot, and the built-in washer is "O" shaped.

[0010] Preferably, the PVC transparent cover is threadedly connected to the base plate by a screw, and the screw is arranged symmetrically with respect to the central axis of the PVC transparent cover.

[0011] Preferably, the mounting ears are arranged symmetrically with respect to the central axis of the base plate, and the middle end of the mounting ears is an open hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of a base plate, air outlet, flared joint, air inlet, and Tesla flow obstruction groove, connects the air outlet and air inlet on the base plate through the flared joint, and combines the Tesla flow obstruction groove in the middle. This setting is based on the principle of Tesla valve, which is equivalent to reducing the material of a one-way valve. When the fluid flows in the forward direction, it can bypass all wing-shaped obstacles and pass through unimpeded. When the fluid flows in the reverse direction, each obstacle will form a severe impact and blockage effect, increasing the flow resistance of the fluid, thereby achieving the effect of one-way flow. Therefore, the overall size and the amount of plate used are reduced accordingly, which can reduce the amount of welding work of the device, reduce the manufacturing cost of the device, and improve the practicality of the device.

[0014] 2. This utility model uses a base plate and mounting ears to fix the base plate to the required position with bolts through the openings on the mounting ears. Its installation position is diversified, not limited to the equipment housing, but can also be connected in series to the gas pipeline, which has obvious installation advantages and improves the flexibility of device installation.

[0015] 3. This utility model, through the setting of a base plate, a slot, a screw and a PVC transparent cover, installs the PVC transparent cover on the base plate by the screw and presses the built-in washer into the slot, which allows for observation of the condition in the flow channel at any time. If there are residual beads, it can be quickly disassembled for maintenance, improving the convenience of disassembly and maintenance of the device. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the present invention viewed from below;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention during an explosion.

[0020] In the diagram: 1. Base plate; 2. Air outlet; 3. Flared connector; 4. Air inlet; 5. Slot; 6. Built-in washer; 7. Screw; 8. PVC transparent cover; 9. Mounting ear; 10. Tesla flow barrier. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of this utility model will be described below based on its overall structure.

[0023] Please see Figure 1-4 A ventilation device based on the Tesla valve principle includes a base plate 1, a Tesla flow-blocking groove 10 at the inner end of the base plate 1, an air outlet 2 at the upper end of the base plate 1, a flared connector 3 installed in the middle of the air outlet 2, and an air inlet 4 at the lower end of the base plate 1. The flared connector 3 is threadedly connected to the base plate 1 through the air outlet 2, and the flared connector 3 is symmetrically arranged about the central axis of the base plate 1. The air outlet 2 and air inlet 4 on the base plate 1 are connected by the flared connector 3. Combined with the Tesla flow-blocking groove 10 in the middle, this setting is based on the principle of the Tesla valve, which is equivalent to reducing the material of a one-way valve. When the fluid flows in the forward direction, it can bypass all wing-shaped obstacles and pass through unimpeded. When the fluid flows in the reverse direction, each obstacle will form a violent impact and blocking effect, increasing the flow resistance of the fluid, thereby achieving a one-way flow effect. Therefore, the overall size and the amount of sheet metal used are reduced accordingly, which can reduce the amount of welding work of the device, reduce the manufacturing cost of the device, and improve the practicality of the device.

[0024] Please see Figure 1-4 An exhaust device based on the Tesla valve principle is described. A base plate 1 has a slot 5 at one end, with a built-in washer 6 installed inside the slot 5. A screw 7 is installed at one end of the base plate 1, and a PVC transparent cover plate 8 is installed at the other end of the screw 7. The built-in washer 6 is engaged with the base plate 1 through the slot 5 and is an "O" type. The PVC transparent cover plate 8 is threaded to the base plate 1 through the screw 7, with the screw 7 symmetrically arranged around the central axis of the PVC transparent cover plate 8. By installing the PVC transparent cover plate 8 onto the base plate 1 through the screw 7 and pressing the built-in washer 6 into the slot 5, the device allows for easy observation of the flow channel. If residual condensate is found, it can be quickly disassembled for maintenance, improving the convenience of disassembly and maintenance.

[0025] Please see Figure 1-4An exhaust device based on the Tesla valve principle is provided. The base plate 1 has mounting ears 9 installed on its outer end. The mounting ears 9 are symmetrically arranged with respect to the central axis of the base plate 1, and the middle of the mounting ears 9 is set with an opening. The base plate 1 is fixed to the required position by bolts through the opening on the mounting ears 9. Its installation position is diversified, not limited to the equipment housing, but can also be connected in series to the gas pipeline. The installation advantages are obvious, which improves the flexibility of device installation.

[0026] Working Principle: In use, the base plate 1 is first fixed to the desired position using bolts through the openings on the mounting ears 9. Its installation location is versatile, not limited to the equipment housing, but can also be connected in series to a gas pipeline, offering significant installation advantages. The air outlet 2 and air inlet 4 on the base plate 1 are connected via the flared connector 3. Combined with the Tesla flow-blocking groove 10 in the middle, this design is based on the principle of a Tesla valve, effectively reducing the material required for a one-way valve. When the fluid flows in the forward direction, it can bypass all wing-shaped obstacles and pass unimpeded. When the fluid flows in the reverse direction, each obstacle will... This creates a severe impact blockage effect, increasing the flow resistance of the fluid and thus achieving a unidirectional conduction effect. As a result, the overall size and the amount of sheet metal used are reduced accordingly, which reduces the amount of welding work required for the device and lowers the manufacturing cost. At the same time, the PVC transparent cover plate 8 can be installed on the base plate 1 through the screw 7, and the built-in washer 6 can be pressed into the slot 5. The condition inside the flow channel can be observed at any time, and if there are residual beads, it can be quickly disassembled for maintenance. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An exhaust device based on the Tesla valve principle, comprising a base plate (1), characterized in that: The base plate (1) has a Tesla flow-blocking groove (10) at its inner end, an air outlet (2) at its upper end, a flared connector (3) at the middle of the air outlet (2), and an air inlet (4) at its lower end. The base plate (1) has a slot (5) at one end, and an internal washer (6) is installed inside the slot (5). A screw (7) is installed at one end of the base plate (1), and a PVC transparent cover plate (8) is installed at one end of the screw (7). The base plate (1) is provided with mounting ears (9) at its outer end.

2. The exhaust device based on the Tesla valve principle according to claim 1, characterized in that: The flared connector (3) is threaded to the base plate (1) through the air outlet (2), and the flared connector (3) is symmetrically arranged with respect to the central axis of the base plate (1).

3. The exhaust device based on the Tesla valve principle according to claim 1, characterized in that: The built-in washer (6) is engaged with the base plate (1) through the slot (5), and the built-in washer (6) is "O" shaped.

4. The exhaust device based on the Tesla valve principle according to claim 1, characterized in that: The PVC transparent cover plate (8) is threadedly connected to the base plate (1) by a screw (7), and the screw (7) is symmetrically arranged with respect to the central axis of the PVC transparent cover plate (8).

5. The exhaust device based on the Tesla valve principle according to claim 1, characterized in that: The mounting ear (9) is symmetrically arranged with respect to the central axis of the base plate (1), and the middle end of the mounting ear (9) is an open hole.

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