Filter with exhaust function

Abstract

The utility model discloses a filter with exhaust function, including lower shell and upper shell, lower shell and upper shell are screwed together, the one end of lower shell is equipped with the fixed connection of the tab with it, be equipped with the first sealing washer of fixed connection on lower shell, be equipped with the second sealing washer of fixed connection on upper shell, the one end of lower shell is equipped with the fixed connection of the air intake pipe with it away from upper shell. The utility model discloses through setting up the airflow guide structure of multichannel cooperation, can even shunt for the gas of entering into multiple air flow, avoid airflow concentrated impact filter element partial, both improve the overall utilization rate and filter efficiency of filter element, reduce the impurity secondary flying of partial turbulence again, guarantee the purification effect, through the protection mechanism of exhaust hole and pressure -relief valve, can open pressure -relief automatically when the pressure in chamber is too high, and close sealing after pressure recovery, avoid the equipment damage because of high pressure, guarantee the equipment operation safety and stability.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter with an exhaust function. Background Technology

[0002] Existing gas filtration equipment typically includes a housing, a filter element disposed within the housing, and an air inlet structure and an air outlet structure respectively connected to the housing. The housing serves as the mounting base and provides a closed space for the filtration process. The air inlet structure guides the gas to be filtered into the interior of the housing, and the gas is discharged through the air outlet structure after being filtered by the filter element, thus completing the basic filtration process.

[0003] Existing gas filtration equipment generally suffers from uneven airflow distribution during actual operation: after the gas to be filtered enters the housing through the air inlet structure, it often directly impacts a local area of ​​the filter element in a relatively concentrated airflow pattern. On the one hand, this causes the impurity retention in the local area of ​​the filter element to quickly become saturated, while other areas fail to fully perform their filtration function, significantly reducing the overall utilization rate and filtration efficiency of the filter element. On the other hand, the local turbulence formed by the concentrated airflow can disrupt the stability of the filtration process, potentially causing impurities to be re-entrained within the housing, further affecting the purification effect. To solve the above problems, this application proposes a filter with an exhaust function. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter with an exhaust function. Through a multi-channel coordinated airflow guiding structure, the incoming gas can be evenly divided into multiple airflows, preventing concentrated airflow from impacting the filter element. This improves the overall utilization and filtration efficiency of the filter element and reduces secondary impurity re-entrainment caused by local turbulence, ensuring the purification effect. A protective mechanism consisting of an exhaust port and a pressure relief valve automatically opens to release pressure when the internal pressure is too high and quickly closes to seal after the pressure recovers, preventing damage to the equipment due to high pressure and ensuring the safety and stability of equipment operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A filter with an exhaust function includes a lower shell and an upper shell, which are threadedly connected. The lower shell has a protruding plate fixedly connected to one end near the upper shell. A first sealing ring is fixedly connected to the lower shell, and a second sealing ring is fixedly connected to the upper shell. An air inlet pipe is fixedly connected to the end of the lower shell away from the upper shell, and an air outlet pipe is fixedly connected to the end of the upper shell away from the lower shell. Rotating rings are fixedly connected to opposite ends of both the lower and upper shells, with each rotating ring respectively fitted onto the outer wall of the corresponding air inlet and outlet pipes. An airflow component is fixedly connected to the inner wall of the lower shell. A filter screen is installed on both the lower and upper shells, and a protective mechanism is provided on the upper shell.

[0007] Preferably, the protection mechanism includes an exhaust port that penetrates the upper shell, and a pressure relief valve is fixedly connected to the inner wall of the exhaust port.

[0008] Preferably, the outer wall of the lower shell is provided with an external thread, and the inner wall of the upper shell is provided with an internal thread that mates with the external thread.

[0009] Preferably, the lower shell has a protruding plate fixedly connected to the upper shell at one end, the first sealing ring is mounted on the protruding plate and fixedly connected to it, the outer wall of the first sealing ring is arranged to abut against the inner wall of the upper shell, and the outer wall of the second sealing ring is arranged to abut against the inner wall of the lower shell.

[0010] Preferably, a purification chamber is provided between the lower shell and the upper shell, the purification chamber is connected to the air inlet pipe, and the purification chamber is connected to the air outlet pipe.

[0011] Preferably, the airflow component includes an airflow block, a main flow channel, a central flow channel, and multiple side flow channels. The main flow channel is formed on the airflow block, the central flow channel passes through the airflow block and is connected to the main flow channel, and the side flow channels pass through the airflow block at equal intervals and are all connected to the main flow channel.

[0012] Preferably, the two ends of the filter screen are arranged to abut against the inner walls of the lower shell and the upper shell, respectively.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. By setting up a multi-channel coordinated airflow guiding structure, the incoming gas can be evenly divided into multiple airflows, avoiding concentrated airflow impacting the filter element locally. This not only improves the overall utilization rate and filtration efficiency of the filter element, but also reduces the secondary re-entrainment of impurities caused by local turbulence, thus ensuring the purification effect.

[0015] 2. The sealing structure, which uses a double sealing ring and a convex plate support, combined with the threaded connection of the housing, greatly improves the sealing stability of the housing connection, effectively prevents leakage of unfiltered gas and secondary pollution of filtered gas, and ensures stable pressure inside the cavity.

[0016] 3. The protection mechanism consisting of an exhaust port and a pressure relief valve can automatically open to relieve pressure when the pressure inside the cavity is too high, and quickly close the seal after the pressure is restored, so as to avoid damage to the equipment due to high pressure and ensure the safety and stability of equipment operation.

[0017] In summary, by setting up a multi-channel coordinated airflow guiding structure, the incoming gas can be evenly divided into multiple airflows, avoiding concentrated airflow impact on local filter elements. This not only improves the overall utilization rate and filtration efficiency of the filter elements, but also reduces the secondary re-entrainment of impurities caused by local turbulence, ensuring the purification effect. The protection mechanism composed of an exhaust port and a pressure relief valve can automatically open to relieve pressure when the internal pressure is too high, and quickly close the seal after the pressure is restored, preventing the equipment from being damaged by high pressure and ensuring the safety and stability of equipment operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a filter with exhaust function proposed in this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of a filter with exhaust function proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the lower shell structure of a filter with exhaust function proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the lower housing of a filter with exhaust function proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the upper shell structure of a filter with exhaust function proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the upper shell of a filter with exhaust function proposed in this utility model;

[0024] Figure 7 This is a partial structural diagram of a filter with exhaust function proposed in this utility model.

[0025] In the diagram: 1. Lower shell, 2. Upper shell, 3. Protruding plate, 4. First sealing ring, 5. Second sealing ring, 6. Air inlet pipe, 7. Air outlet pipe, 8. Rotating ring, 9. Airflow component, 9-1. Airflow block, 9-2. Main flow channel, 9-3. Central flow channel, 9-4. Side flow channel, 10. Filter screen, 11. Exhaust hole, 12. Pressure relief valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1-7 A filter with exhaust function includes a lower shell 1 and an upper shell 2. The lower shell 1 and the upper shell 2 serve as the main structure of the filter and together form a space for installing internal components. The lower shell 1 and the upper shell 2 are threaded together. The outer wall of the lower shell 1 is provided with an external thread, and the inner wall of the upper shell 2 is provided with an internal thread that mates with the external thread. The mating of the external thread and the internal thread enables the lower shell 1 and the upper shell 2 to be detachably fixed.

[0028] The lower shell 1 has a protruding plate 3 fixedly connected to the upper shell 2 at one end. The protruding plate 3 provides installation support for the first sealing ring 4 and enhances the stability of the sealing structure. The first sealing ring 4 is fixedly connected to the lower shell 1, and the second sealing ring 5 is fixedly connected to the upper shell 2. The first sealing ring 4 is installed on the protruding plate 3 and fixedly connected to it. The outer wall of the first sealing ring 4 abuts against the inner wall of the upper shell 2, and the outer wall of the second sealing ring 5 abuts against the inner wall of the lower shell 1. The first sealing ring 4 and the second sealing ring 5 work together to achieve a seal at the connection between the lower shell 1 and the upper shell 2, preventing gas leakage in the purification chamber.

[0029] The lower shell 1 has an air inlet pipe 6 fixedly connected to the end away from the upper shell 2. The air inlet pipe 6 guides the gas to be filtered into the purification chamber. The upper shell 2 has an air outlet pipe 7 fixedly connected to the end away from the lower shell 1. The air outlet pipe 7 guides the filtered gas out of the equipment. A purification chamber is opened between the lower shell 1 and the upper shell 2. The purification chamber provides a closed working space for gas filtration. The purification chamber is connected to the air inlet pipe 6 and the air outlet pipe 7. The air inlet pipe 6, the purification chamber and the air outlet pipe 7 form a complete path for gas flow.

[0030] Rotating rings 8 are fixedly connected to the opposite ends of the lower shell 1 and the upper shell 2. The two rotating rings 8 are respectively sleeved on the outer walls of the corresponding air inlet pipe 6 and air outlet pipe 7. An airflow component 9 is fixedly connected to the inner wall of the lower shell 1. The airflow component 9 diverts and guides the incoming gas, so that the gas flows evenly to the filter screen 10 to improve the filtration efficiency. The airflow component 9 includes an airflow block 9-1, a main flow channel 9-2, a central flow channel 9-3, and multiple side flow channels 9-4. The airflow block 9-1 provides an installation carrier for each flow channel. The flow channels work together to achieve uniform gas diversion. The main flow channel 9-2 is opened on the airflow block 9-1. The main flow channel 9-2 receives the gas introduced by the air inlet pipe 6 and performs preliminary distribution. The central flow channel 9-3 penetrates the airflow block. 9-1 is connected to the main flow channel 9-2. The side flow channels 9-4 pass through the airflow block 9-1 at equal intervals and are all connected to the main flow channel 9-2. The central flow channel 9-3 and the side flow channels 9-4 cooperate to divide the gas in the main flow channel 9-2 into multiple uniform airflows. The lower shell 1 and the upper shell 2 are jointly equipped with a filter screen 10 (the filter screen 10 is a cylindrical structure, with the upper and lower ends pressed against the inner walls of the lower shell 1 and the upper shell 2 respectively to ensure that there is no gap between the filter screen 10 and the shell). The filter screen 10 is used to intercept impurities in the gas. The two ends of the filter screen 10 are arranged to abut against the inner walls of the lower shell 1 and the upper shell 2 respectively. The structure of the two ends abutting against each other ensures that the gas must be filtered by the filter screen 10 before it can flow out of the purification chamber.

[0031] The upper shell 2 is equipped with a protection mechanism to prevent the equipment from being damaged by excessive pressure in the purification chamber. The protection mechanism includes an exhaust port 11 that runs through the upper shell 2. The exhaust port 11 provides a release channel for excessive pressure in the purification chamber. A pressure relief valve 12 is fixedly connected to the inner wall of the exhaust port 11. The pressure relief valve 12 cooperates with the exhaust port 11. When the pressure exceeds the set value, it automatically opens to release the pressure. After the pressure returns to normal, it closes to maintain a seal.

[0032] In this invention, the gas to be filtered enters the interior of the lower shell 1 through the air inlet pipe 6 and first comes into contact with the airflow component 9 fixed on the inner wall of the lower shell 1. The airflow component 9 has a main flow channel 9-2, a central flow channel 9-3 and multiple side flow channels 9-4 on the airflow block 9-1. After the gas enters the main flow channel 9-2, it will be evenly distributed to the central flow channel 9-3 and the side flow channels 9-4. Through multi-path guidance, the airflow is made to flow more stably and evenly to the purification chamber (the chamber formed by the connection between the lower shell 1 and the upper shell 2), avoiding local airflow turbulence from affecting the filtration efficiency.

[0033] After being diverted by the airflow component 9, the purified gas enters the purification chamber and comes into contact with the filter screen 10 installed on both the lower shell 1 and the upper shell 2. The two ends of the filter screen 10 abut against the inner walls of the lower shell 1 and the upper shell 2, respectively, to ensure that the gas must be filtered by the filter screen 10 before it can flow out. Impurities in the gas (such as particulate matter, dust, etc.) are trapped by the filter screen 10, thus achieving gas purification.

[0034] After filtration, the purified gas is discharged through the end of the upper shell 2 away from the lower shell 1 and through the air outlet 7, thus completing the filtration process.

[0035] The lower shell 1 and the upper shell 2 are connected by threads (the external thread on the outer wall of the lower shell 1 mates with the internal thread on the inner wall of the upper shell 2), and the connection is provided with a double sealing structure: a first sealing ring 4 is fixed on the protruding plate 3 of the lower shell 1 near the upper shell 2, and its outer wall abuts against the inner wall of the upper shell 2; the outer wall of the second sealing ring 5 on the upper shell 2 abuts against the inner wall of the lower shell 1; the double sealing ensures the airtightness of the purification chamber and prevents the leakage of unfiltered gas or secondary pollution of filtered gas.

[0036] Pressure protection (exhaust function): When the pressure in the purification chamber becomes too high due to a sudden increase in gas flow or blockage of the filter screen 10, the protection mechanism on the upper shell 2 is activated: the pressure relief valve 12 in the exhaust hole 11 penetrating the upper shell 2 will automatically open (the pressure relief valve 12 is a one-way pressure relief valve), releasing the excessive pressure in the chamber through the exhaust hole 11 to avoid damage to the filter housing or connecting parts due to excessive pressure. After the pressure returns to normal, the pressure relief valve 12 closes to ensure stable operation of the filter.

Claims

1. A filter with exhaust function, comprising a lower shell (1) and an upper shell (2), characterized in that, The lower shell (1) and the upper shell (2) are threaded together. The lower shell (1) is provided with a protruding plate (3) fixedly connected to the upper shell (2) at one end. A first sealing ring (4) is fixedly connected to the lower shell (1). A second sealing ring (5) is fixedly connected to the upper shell (2). An air inlet pipe (6) is fixedly connected to the lower shell (1) away from the upper shell (2). An air outlet pipe (7) is fixedly connected to the upper shell (2) away from the lower shell (1). Rotating rings (8) are fixedly connected to the opposite ends of the lower shell (1) and the upper shell (2). The two rotating rings (8) are respectively sleeved on the outer walls of the corresponding air inlet pipe (6) and air outlet pipe (7). An airflow component (9) is fixedly connected to the inner wall of the lower shell (1). A filter screen (10) is installed on both the lower shell (1) and the upper shell (2). A protective mechanism is provided on the upper shell (2).

2. A filter with exhaust function according to claim 1, characterized in that, The protection mechanism includes an exhaust port (11) that penetrates the upper shell (2), and a pressure relief valve (12) is fixedly connected to the inner wall of the exhaust port (11).

3. A filter with exhaust function according to claim 1, characterized in that, The outer wall of the lower shell (1) is provided with an external thread, and the inner wall of the upper shell (2) is provided with an internal thread that mates with the external thread.

4. A filter with exhaust function according to claim 1, characterized in that, The lower shell (1) is provided with a protruding plate (3) fixedly connected to the upper shell (2) at one end. The first sealing ring (4) is installed on the protruding plate (3) and fixedly connected to it. The outer wall of the first sealing ring (4) abuts against the inner wall of the upper shell (2), and the outer wall of the second sealing ring (5) abuts against the inner wall of the lower shell (1).

5. A filter with exhaust function according to claim 1, characterized in that, A purification chamber is provided between the lower shell (1) and the upper shell (2). The purification chamber is connected to the air inlet pipe (6) and the air outlet pipe (7).

6. A filter with exhaust function according to claim 1, characterized in that, The airflow component (9) includes an airflow block (9-1), a main flow channel (9-2), a central flow channel (9-3), and multiple side flow channels (9-4). The main flow channel (9-2) is located on the airflow block (9-1). The central flow channel (9-3) passes through the airflow block (9-1) and is connected to the main flow channel (9-2). The side flow channels (9-4) pass through the airflow block (9-1) at equal intervals and are all connected to the main flow channel (9-2).

7. A filter with exhaust function according to claim 1, characterized in that, The two ends of the filter screen (10) are respectively arranged to abut against the inner wall of the lower shell (1) and the inner wall of the upper shell (2).

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