Compressed air purifying and drying device

Abstract

The utility model discloses a compressed air purifying and drying device which comprises a box body, an air inlet pipe is arranged on the upper end face of the box body, an air outlet pipe is arranged at the bottom of the box body, a baffle ring is fixedly arranged on the inner wall of the box body, a filter screen located in the box body is arranged above the baffle ring, and the filter screen is connected with the baffle ring through a stabilizing mechanism. The filter screen is installed in the box body through a reset mechanism, a rotating shaft is rotatably installed in the box body, fan blades are installed on the rotating shaft, and the rotating shaft is connected with the filter screen through a contact mechanism. The rotating shaft, the fan blades, the cam, the filter screen, the baffle ring and the reset spring are arranged and matched for use, so that compressed air can be filtered, the filter screen can be shaken, dust is prevented from being blocked in meshes, frequent shutdown for cleaning is not needed, and the practicability of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of compressed air, in particular to a compressed air purification and drying device. Background Technique

[0002] Compressed air is widely used in the factory production of various industries. Compressed air is usually generated by inputting electric energy to drive a motor, and then the motor drives a compressor to achieve mechanical compression to generate compressed air with a certain pressure. The existing compressed air itself contains a small amount of impurities and moisture. When the compressed air containing impurities and moisture is transported inside the using equipment, it not only reduces the service life of the equipment but also reduces the use efficiency of the equipment.

[0003] The common compressed air purification and drying devices have the following technical disadvantages: After the filter screen arranged in the purification and drying device filters compressed air for a period of time, its mesh holes will be blocked, thus hindering the normal passage of gas, resulting in a reduction in flow rate, thereby affecting the working efficiency of related equipment or systems. At this time, it is necessary to shut down the equipment to clean the mesh holes of the filter screen. Shutting down the equipment to clean the mesh holes of the filter screen will cause production interruption, affecting the production progress and output, and may bring economic losses. In order to address this problem, a compressed air purification and drying device needs to be proposed here. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a compressed air purification and drying device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A compressed air purification and drying device includes a box body. An air inlet pipe is arranged on the upper end surface of the box body, and an air outlet pipe is arranged at the bottom of the box body. A retaining ring is fixedly arranged on the inner wall of the box body. A filter screen is arranged in the box body above the retaining ring. The filter screen is connected to the retaining ring through a stabilizing mechanism. The filter screen is installed inside the box body through a reset mechanism. A rotating shaft is rotatably installed inside the box body. A fan blade is installed on the rotating shaft. The rotating shaft is connected to the filter screen through a contact mechanism. A plurality of drying channels are arranged inside the box body, and electric heating rings are arranged inside the drying channels.

[0007] Preferably, the stabilizing mechanism includes a through rod installed on the bottom wall of the filter screen, and the through rod slidably penetrates through the retaining ring.

[0008] Preferably, the reset mechanism includes a plurality of reset springs arranged inside the box body. Both ends of the plurality of reset springs are elastically connected to the outer wall of the filter screen and the inner wall of the box body respectively.

[0009] Preferably, the contact mechanism includes a cam mounted on the rotating shaft, and a contact groove corresponding to the cam is provided on the bottom wall of the filter net.

[0010] Preferably, the vertical cross-sectional view of the drying channel is designed in a serpentine shape, and the electric heating ring is arranged at the turning of the drying channel.

[0011] Preferably, an opening and closing port corresponding to the filter net is provided on the box body, and an opening and closing door is installed in the opening and closing port.

[0012] Advantages of the present utility model:

[0013] 1. By providing a rotating shaft, fan blades, cam, filter net, retaining ring and return spring, the above components can be used in cooperation to filter compressed air during the passage of compressed air, and the shaking operation of the filter screen can be realized, avoiding dust clogging in the mesh holes, and there is no need to frequently stop the machine for cleaning, ensuring the practicability of the device.

[0014] 2. By providing a through rod on the filter net, and the through rod sliding through the retaining ring, the stability of the filter net when moving up and down relative to the retaining ring is realized, improving the overall stability of the device.

[0015] 3. By providing a plurality of serpentine drying channels, the residence time of the gas in the channels is prolonged, thus ensuring the drying effect of the electric heating ring. Description of the drawings

[0016] Figure 1 is a schematic structural diagram of a compressed air purification and drying device proposed by the present utility model;

[0017] Figure 2 is Figure 1 the vertical cross-sectional structural diagram;

[0018] Figure 3 is Figure 2 the enlarged structural diagram at position A of

[0019] Figure 4 is Figure 2 the enlarged structural diagram at position B of

[0020] Figure 5 is Figure 1 the horizontal cross-sectional structural diagram.

[0021] In the figure: 1 box body, 2 air inlet pipe, 3 air outlet pipe, 4 filter net, 5 retaining ring, 6 through rod, 7 rotating shaft, 8 fan blades, 9 cam, 10 drying channel, 11 electric heating ring, 12 return spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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.

[0023] Referring to Figures 1-5 , a compressed air purification and drying device includes a box body 1. An air inlet pipe 2 is provided on the upper end surface of the box body 1, an air outlet pipe 3 is provided at the bottom of the box body 1, a retaining ring 5 is fixedly arranged on the inner wall of the box body 1, a filter net 4 is arranged above the retaining ring 5 inside the box body 1, the filter net 4 is connected to the retaining ring 5 through a stabilizing mechanism, the filter net 4 is installed inside the box body 1 through a reset mechanism, a rotating shaft 7 is rotatably installed inside the box body 1, a fan blade 8 is installed on the rotating shaft 7, and the rotating shaft 7 is connected to the filter net 4 through a contact mechanism. A plurality of drying channels 10 are provided inside the box body 1, and an electric heating ring 11 is arranged inside the drying channels 10.

[0024] The stabilizing mechanism includes a through rod 6 installed on the bottom wall of the filter net 4. The through rod 6 slidably penetrates through the retaining ring 5. The through rod 6 ensures the stability of the trajectory of the filter net 4 when rising relative to the retaining ring 5, and the retaining ring 5 is made of metal.

[0025] The reset mechanism includes a plurality of reset springs 12 arranged inside the box body 1. Both ends of the plurality of reset springs 12 are elastically connected to the outer wall of the filter net 4 and the inner wall of the box body 1 respectively. After the filter net 4 loses the extrusion of the cam 9, it will descend and reset under the action of the reset spring 12, and will vibrate after hitting the above-mentioned metal retaining ring 5. This vibration helps to shake out the impurities blocked in the mesh holes of the filter net 4.

[0026] The contact mechanism includes a cam 9 installed on the rotating shaft 7. A contact groove corresponding to the cam 9 is arranged on the bottom wall of the filter net 4. When the long end of the cam 9 contacts the contact groove, the upward pushing operation of the filter net 4 can be realized. Correspondingly, when the short end of the cam 9 corresponds to the filter net 4, the upward pushing operation is no longer performed on it.

[0027] The vertical cross-sectional view of the drying channel 10 is designed in a snake shape. The electric heating ring 11 is arranged at the turning point of the drying channel 10. For specific reference, please refer to the attached Figure 4 As shown, compared with the straight channel, the above-mentioned shape design of the drying channel 10 increases the gas flow path and tortuosity. The gas needs to move along the curved path (as shown in the figure, the bending amplitude is not large and multiple drying channels 10 are provided, and the influence on slowing down the gas flow rate in practice is not significant). Therefore, the residence time of the gas in the channel is extended, thereby ensuring the drying effect of the electric heating ring 11.

[0028] An opening / closing port corresponding to the filter net 4 is provided on the box body 1, and an opening / closing door is installed in the opening / closing port. The opening / closing door is hermetically installed with the opening / closing port. By opening the opening / closing door, the opening / closing port can be opened, so as to facilitate the convenient cleaning operation of the dust and impurities on the filter net 4.

[0029] When the utility model is in use, compressed gas enters the box body 1 through the air inlet pipe 2 and is discharged through the air outlet pipe 3. In this process, the compressed gas passes through the filter net 4 and the drying channel 10. The impurity filtering operation is realized by means of the filter net 4, and the drying operation is realized by means of the electric heating ring 11 in the drying channel 10.

[0030] In this process, the compressed gas can drive the rotating shaft 7 to rotate by means of the fan blade 8. When the rotating shaft 7 rotates, the cam 9 can rotate synchronously. When the long end of the cam 9 contacts the contact groove, the upward pushing operation of the filter net 4 can be realized. Correspondingly, when the short end of the cam 9 corresponds to the filter net 4, the upward pushing operation is no longer performed on it. At this time, under the action of the return spring 12, the filter net 4 descends and resets and impacts the retaining ring 5. The vibration generated by the impact can shake out the dust and impurities blocked in the mesh holes of the filter net 4, so as to avoid blockage and affect the normal passage of the compressed gas.

[0031] When the equipment stops running and is not in use, the dust and impurities on the filter net 4 can be cleaned. By opening the opening / closing door, the opening / closing port can be opened, so as to facilitate the convenient cleaning operation of the dust and impurities on the filter net 4.

[0032] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the utility model.

Claims

1. A compressed air purification and drying device, comprising a housing (1), characterized in that: An air inlet pipe (2) is provided on the upper end surface of the box body (1), an air outlet pipe (3) is provided at the bottom of the box body (1), a retaining ring (5) is fixedly provided on the inner wall of the box body (1), a filter screen (4) located in the box body (1) is provided above the retaining ring (5), the filter screen (4) is connected to the retaining ring (5) via a stabilizing mechanism, the filter screen (4) is installed inside the box body (1) via a reset mechanism, a rotating shaft (7) is rotatably installed inside the box body (1), a fan blade (8) is installed on the rotating shaft (7), the rotating shaft (7) is connected to the filter screen (4) via a contact mechanism, a plurality of drying channels (10) are provided inside the box body (1), and an electric heating ring (11) is provided inside the drying channel (10).

2. A compressed air purification and drying device according to claim 1, characterized in that: The stabilizing mechanism comprises a penetrating rod (6) mounted on the bottom wall of the filter screen (4), and the penetrating rod (6) slides through the retaining ring (5).

3. A compressed air purification and drying device according to claim 2, characterized in that: The reset mechanism comprises a plurality of reset springs (12) arranged inside the box body (1), and both ends of the plurality of reset springs (12) are elastically connected to the outer wall of the filter screen (4) and the inner wall of the box body (1), respectively.

4. A compressed air purification and drying device according to claim 3, characterized in that: The contact mechanism comprises a cam (9) mounted on a rotating shaft (7), and the bottom wall of the filter screen (4) is provided with a contact groove corresponding to the cam (9).

5. A compressed air purification and drying device according to claim 4, characterized in that: The vertical cross-section of the drying channel (10) is designed in a serpentine shape, and the electric heating ring (11) is arranged at the turning point of the drying channel (10).

6. A compressed air purification and drying device according to claim 5, characterized in that: The box body (1) is provided with an opening and closing opening corresponding to the filter screen (4), and an opening and closing door is installed in the opening and closing opening.

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