Buffer device for back-blowing self-cleaning filter

Abstract

The utility model relates to the field of air separation equipment, in particular to a buffer device for a back-blowing self-cleaning filter, which comprises a connecting pipeline for air path communication, a first gas inlet and a first gas outlet are respectively formed in two ends of the first buffer tank; the second buffer box body comprises a first splicing part and a second splicing part, a second air inlet is formed in the top end of the first splicing part, a second air outlet is formed in the bottom of the second splicing part, and the bottom of the first splicing part is spliced with the top of the second splicing part; a first gas outlet of the first buffer tank is connected with a second gas inlet through a connecting pipeline, and a second gas outlet is connected with the connecting pipeline; and the acceleration assembly is arranged in the second buffer box body. By means of the air inlet pipeline arranged at the back-blowing end, back-blowing airflow flowing in is gathered and then sprayed out in an accelerated mode through the acceleration assembly, and therefore continuous supply of the back-blowing airflow is achieved, the back-blowing effect is improved, and the air filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of air separation equipment, in particular to a buffer device for a backwashing self-cleaning filter. Background Art

[0002] The basic principle of air separation is mainly to utilize the boiling point differences of the components in the air (such as oxygen and nitrogen), and separate them by physical or chemical methods. However, the air contains more impurities or dust, and for the self-cleaning filter in the air separation equipment, the air raw material passes through the filter element arranged in the self-cleaning filter, thereby filtering the impurities or dust in the air.

[0003] In the prior art, after the self-cleaning filter is used for a long time, multiple filter elements inside it are often blocked by impurities, resulting in poor air filtering effect. To improve the air filtering effect, the self-cleaning filter often has a backwashing end. When the filter element is blocked by impurities, the backwashing end is opened to blow the filter element, so that the impurities on the filter element fall off. However, the existing backwashing end is directly connected to the backwashing pipeline, and there is often a phenomenon of insufficient backwashing air volume in the backwashing air flow in the backwashing pipeline. When blowing the filter element later, the backwashing air flow cannot be continuously supplied, easily causing poor backwashing effect of the self-cleaning filter, thus affecting the air quality of the raw material. Summary of the Utility Model

[0004] The utility model provides a buffer device for a backwashing self-cleaning filter, which is arranged on the backwashing pipeline of the backwashing end, converges the inflowing backwashing air flow, and then sprays it out through an acceleration component, thereby realizing the continuous supply of the backwashing air flow and increasing the spraying force, thus improving the backwashing effect and the filtering effect of the self-cleaning filter.

[0005] To achieve the above object, the utility model provides a buffer device for a backwashing self-cleaning filter, including:

[0006] A connecting pipeline for air path connection;

[0007] A first buffer tank, with a first air inlet and a first air outlet respectively opened at both ends of the first buffer tank, and multiple first buffer tanks are provided;

[0008] A second buffer box body, which includes a first splicing part and a second splicing part. The bottom of the first splicing part is open, the top of the first splicing part is provided with a second air inlet, the top of the second splicing part is open, the bottom of the second splicing part is provided with a second air outlet, the bottom of the first splicing part and the top of the second splicing part are spliced with each other, the first air outlets of the multiple first buffer tanks are connected to the second air inlet through the connecting pipeline, and the second air outlet is connected to the connecting pipeline; and

[0009] Acceleration component, the acceleration component is arranged inside the second buffer box body, the acceleration component includes an installation frame, blades and a drive motor, the installation frame is arranged between the bottom of the first splicing part and the top of the second splicing part, the blades are arranged on the output end of the drive motor, and the drive motor is arranged on the installation frame.

[0010] Furthermore, sealing bosses are arranged at both ends of the installation frame, and the bottom of the first splicing part and the top of the second splicing part are respectively blocked on the sealing bosses.

[0011] Preferably, the buffer device for the backwashing self-cleaning filter further includes a connecting seal. Connecting holes are opened on the outer walls at the bottom of the first splicing part and the outer walls at the top of the second splicing part. Both ends of the connecting seal are arranged in the connecting holes opened at the bottom of the first splicing part and the connecting holes opened at the top of the second splicing part through bolts.

[0012] Preferably, the buffer device for the backwashing self-cleaning filter further includes a drying component, and the drying component is arranged on the inner wall of the first buffer tank.

[0013] Furthermore, the drying component includes a plurality of drying strip blocks, and the plurality of drying strip blocks are arranged spirally on the inner wall of the first buffer tank.

[0014] Preferably, the buffer device for the backwashing self-cleaning filter further includes a blowing component, the blowing component is a Laval nozzle, and the blowing component is arranged on the connecting pipeline connected to the second air outlet.

[0015] Compared with the prior art, the buffer device for the backwashing self-cleaning filter according to the embodiment of the present invention, by arranging a plurality of first buffer tanks, the backwashing air flow is pre-filled into the first buffer tanks, so that a certain amount of air is stored in the first buffer tanks, reducing the intermittent blowing phenomenon of the backwashing air flow, making the backwashing air flow continuously supplied. At the same time, a second buffer box body and an acceleration component are arranged. After the backwashing air flow ejected from the first buffer tank enters the second buffer box body, it is accelerated by the acceleration component in the second buffer box body, so that the ejection speed of the backwashing air flow is increased, thereby enhancing the blowing force of the backwashing air flow and improving the backwashing filter element effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of a buffer device for a backwashing self-cleaning filter of the present invention;

[0017] Figure 2 is the cross-sectional schematic diagram of the first buffer tank of a buffer device for a backwashing self-cleaning filter of the present invention;

[0018] Figure 3Schematic top cross-sectional view of the first buffer tank of a buffer device for a backflush self-cleaning filter of the present utility model;

[0019] Figure 4 Schematic cross-sectional view of the second buffer box of a buffer device for a backflush self-cleaning filter of the present utility model; and

[0020] Figure 5 is Figure 4 Partial enlarged structural schematic diagram of area A in

[0021] Reference numerals:

[0022] 1000. Connecting pipeline;

[0023] 2000. First buffer tank; 2100. First air inlet; 2200. First air outlet;

[0024] 3000. Second buffer box; 3100. First splicing part; 3110. Second air inlet; 3200. Second splicing part; 3210. Second air outlet;

[0025] 4000. Acceleration component; 4100. Installation frame; 4110. Sealing boss; 4200. Blade; 4300. Driving motor;

[0026] 5000. Connecting seal; 5100. Connecting hole;

[0027] 6000. Drying component; 6100. Drying strip;

[0028] 7000. Blowing component;

[0029] 8000. Positioning part; 8100. Positioning hole; 8200. Positioning pin shaft. Detailed implementation manners

[0030] To further understand the purpose, structure, features, and functions of the present utility model, the following is a detailed description in conjunction with embodiments.

[0031] As Figures 1-5 shown, a buffer device for a backflush self-cleaning filter provided by an embodiment of the present utility model includes:

[0032] A connecting pipeline 1000 for gas path connection, a first buffer tank 2000, a second buffer box 3000, and an acceleration component 4000;

[0033] A plurality of first buffer tanks 2000 are provided, and the first buffer tanks 2000 are respectively provided with a first air inlet 2100 and a first air outlet 2200. The second buffer tank 3000 includes a first splicing portion 3100 and a second splicing portion 3200. The bottom of the first splicing portion 3100 and the top of the second splicing portion 3200 are spliced, and an acceleration component 4000 is arranged between the bottom of the first splicing portion 3100 and the top of the second splicing portion 3200. Wherein, a second air inlet 3110 and a second air outlet 3210 are respectively arranged at the top of the first splicing portion 3100 and the bottom of the second splicing portion 3200. At the same time, a set of connecting pipelines 1000 connects the backwashing pipeline with the first air inlet 2100, another set of connecting pipelines 1000 connects the first air outlet 2100 with the second air inlet 3110, and the last set of connecting pipelines 1000 connects the second air outlet 3210 with the backwashing end of the self-cleaning filter;

[0034] Wherein, when the user needs to use the buffer device for backwashing the self-cleaning filter of the present utility model to buffer the backwashing air flow output by the backwashing pipeline, first, the backwashing air flow flows into a plurality of first buffer tanks 2000 through the connecting pipeline 1000. The backwashing air flow will preferentially fill the entire first buffer tank 2000. After the first buffer tank 2000 is filled, the backwashing air flow flowing into the first buffer tank 2000 will push the gas in the first buffer tank 2000 to be ejected from the first air outlet into the second buffer box body 3000. At this time, the acceleration component 4000 in the second buffer box body 3000 is turned on, so that the backwashing air flow in the first splicing portion 3100 quickly flows to the second splicing portion 3200 through the acceleration component 4000 and is accelerated and ejected from the second air outlet 3200 to the backwashing end of the self-cleaning filter.

[0035] Specifically, as Figure 4 and Figure 5 shown, sealing bosses 4110 are arranged at both ends of the installation frame 4100, and the bottom of the first splicing portion 3100 and the top of the second splicing portion 3200 are respectively blocked on the sealing bosses 4110. Sealing bosses 4110 are arranged at both ends of the installation frame 4100, so that when the second buffer box body 3000 is assembled, the overall sealing performance of the second buffer box body 3000 is better, and at the same time, it is convenient to disassemble and maintain the acceleration component 4000 later.

[0036] Specifically, as Figure 5As shown, the buffer device for the backflush self-cleaning filter further includes a connection seal 5000. Connection holes 5100 are provided on the outer wall of the bottom of the first splicing part 3100 and the outer wall of the top of the second splicing part 3200. Both ends of the connection seal 5000 are arranged in the connection holes 5100 at the bottom of the first splicing part 3100 and the connection holes 5100 provided at the top of the second splicing part 3200 through bolts. The connection seal 5000 further locks the first splicing part 3100 and the second splicing part 3200, improving the sealing performance of the second buffer box 3000.

[0037] Preferably, as Figure 5 shown, the buffer device for the backflush self-cleaning filter further includes a positioning member 8000. The positioning member 8000 includes a positioning pin shaft 8200 and positioning holes 8100. Positioning holes 8100 are provided at the bottom of the first splicing part 3100, on the sealing boss 4110 and at the top of the second splicing part 3200. And the positioning pin shaft 8200 is arranged through the positioning hole 8100 on the sealing boss 4110. One end of the positioning pin shaft 8200 extends into the positioning hole 8100 at the bottom of the first splicing part 3100, and the other end of the positioning pin shaft 8200 extends into the positioning hole 8100 at the top of the second splicing part 3200. When installing the acceleration assembly 4000 between the first splicing part 3100 and the second splicing part 3200, the positioning member 8000 ensures that the acceleration assembly 4000 reaches the correct installation position, improving the sealing performance of the second buffer box 3000.

[0038] Specifically, as Figure 4 shown, the acceleration assembly 4000 is arranged inside the second buffer box 3000. The acceleration assembly 4000 includes an installation frame 4100, blades 4200 and a drive motor 4300. The installation frame 4100 is arranged between the bottom of the first splicing part 3100 and the top of the second splicing part 3200. The blades 4200 are arranged on the output end of the drive motor 4300, and the drive motor 4300 is arranged on the installation frame 4100. When the acceleration assembly 4000 works, the drive motor 4300 rotates, causing the output end of the drive motor 4300 to rotate clockwise, causing the blades 4200 on the output end of the drive motor 4300 to rotate clockwise synchronously, causing the backflush air flow in the first splicing part 3100 to quickly blow towards the second splicing part 3200. The working principle of the acceleration assembly 4000 is the same as the fan air extraction principle, accelerating the backflush air flow in the first splicing part 3100 to blow towards the second splicing part 3200.

[0039] Furthermore, the power cord of the drive motor 4300 is arranged inside the installation frame 4100 and passes through the power hole on the installation frame 4100. Since the pressure value in the inner cavity of the second buffer box 3000 during operation is relatively small, the power hole is sealed with sealing latex, which can ensure the sealing performance of the overall inner cavity of the second buffer box 3000.

[0040] Specifically, as Figure 2 and Figure 3 shown, the buffer device for the backflush self-cleaning filter further includes a drying component 6000, and the drying component 6000 is arranged on the inner wall of the first buffer tank 2000. The backflush air flow backflushes the dust on the filter element of the self-cleaning filter. When the humidity of the backflush air flow is relatively high, the dust on the filter element will combine with the water-containing backflush air flow to form fine particles, and then adhere to the surface of the filter element, resulting in a reduction in the blowing effect. Therefore, by setting the drying component to dry the backflush air flow, the effect of the dried backflush air flow in blowing the dust on the surface of the filter element is better.

[0041] Furthermore, as Figure 3 shown, the drying component 6000 includes a plurality of drying strips 6100, and the plurality of drying strips 6100 are arranged in a spiral shape on the inner wall of the first buffer tank 2000. The spiral drying strips 6100 can not only dry the backflush air flow, but also generate a spiral air flow when the backflush air flow passes through the spiral drying strips, so that the backflush air flow has a certain acceleration when it is ejected from the first buffer tank 2000 to the second buffer box body 3000.

[0042] Specifically, as Figure 1 shown, the buffer device for the backflush self-cleaning filter further includes a blowing component 7000, and the blowing component 7000 is a Laval nozzle. The blowing component 7000 is arranged on the connecting pipeline 1000 connecting the second air outlet 3210. The backflush air flow in the second buffer box body 3000 is ejected from the second air outlet 3210 after being accelerated by the acceleration component 4000. At this time, by setting the Laval nozzle, the backflush air flow ejected from the second air outlet 3210 is blown into one end with a larger cross-section of the Laval nozzle and then ejected from the end with a smaller cross-section of the Laval nozzle, so that the backflush air flow is secondarily accelerated under the action of the Laval nozzle, thereby improving the blowing effect of the backflush air flow on the filter element of the self-cleaning filter.

[0043] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] The present utility model has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, changes and modifications made without departing from the spirit and scope of the present utility model fall within the scope of patent protection of the present utility model.

Claims

1. A buffer device for back-blowing self-cleaning filter, characterized in that: include: Connecting pipes for gas circuit connection; A first buffer tank, wherein two ends of the first buffer tank are respectively provided with a first air inlet and a first air outlet, and a plurality of the first buffer tanks are provided; A second buffer box, wherein the second buffer box comprises a first splicing portion and a second splicing portion, the bottom of the first splicing portion is open, a second air inlet is arranged at the top of the first splicing portion, the top of the second splicing portion is open, a second air outlet is arranged at the bottom of the second splicing portion, the bottom of the first splicing portion and the top of the second splicing portion are spliced ​​with each other, the first air outlets of the plurality of first buffer tanks are connected to the second air inlet through the connecting pipeline, and the second air outlet is connected to the connecting pipeline; as well as An acceleration component, which is arranged inside the second buffer box, and includes a mounting frame, blades and a transmission motor. The mounting frame is arranged between the bottom of the first splicing part and the top of the second splicing part, the blades are arranged on the output end of the transmission motor, and the transmission motor is arranged on the mounting frame.

2. The buffer device for back-blowing self-cleaning filter according to claim 1, characterized in that: Sealing bosses are arranged at both ends of the installation frame, and the bottom of the first splicing part and the top of the second splicing part are respectively blocked on the sealing bosses.

3. The buffer device for back-blowing self-cleaning filter according to claim 2, characterized in that: It also includes a connecting seal, wherein connecting holes are provided on the bottom outer wall of the first splicing part and the top outer wall of the second splicing part, and both ends of the connecting seal are arranged in the connecting hole provided at the bottom of the first splicing part and the connecting hole provided at the top of the second splicing part by bolts.

4. The buffer device for back-blowing self-cleaning filter according to claim 1, characterized in that: It also includes a drying component, which is arranged on the inner wall of the first buffer tank.

5. The buffer device for back-blowing self-cleaning filter according to claim 4, characterized in that: The drying assembly includes a plurality of drying strips, and the plurality of drying strips are spirally arranged on the inner wall of the first buffer tank.

6. The buffer device for back-blowing self-cleaning filter according to claim 1, characterized in that: It also includes a spray assembly, which is a Laval nozzle and is arranged on the connecting pipeline connected to the second air outlet.

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