Connecting flange for dust removal guiding of filter cartridge

Abstract

The utility model provides a connecting flange for dust removal guiding of a filter cartridge, which comprises a shell, one end of the shell is provided with a first connecting end face used for being connected with a blowing device, the other end of the shell is provided with a second connecting end face used for being connected with the filter cartridge, the shell is internally provided with a reducing cavity channel, the cavity channel comprises a contraction section and a diffusion section, and the contraction section and the diffusion section are connected with each other. A flow guide body is arranged in the center of the cavity channel, an air flow channel is formed between the flow guide body and the shell, and flow guide blades are arranged in the air flow channel. The flow guide body is arranged, entering pulse gas can be dispersed and guided, the gas is prevented from directly rushing into the filter cartridge, in cooperation with the contraction section and the diffusion section of the cavity channel, the inlet is small, the outlet is large, the variable-speed flow diffusion effect is achieved, energy loss is small, the pulse gas is diffused evenly, in cooperation with the flow guide blades, the pulse gas forms the rotational flow effect, and therefore the pulse gas is diffused evenly. Therefore, the pulse gas entering the filter cartridge is uniform and provided with the cyclone, so that all parts in the filter cartridge are stressed in a balanced manner, and a balanced and efficient ash removal effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of environmental protection equipment, especially relate to a connecting flange for filter cartridge ash removal guide. BACKGROUND

[0002] At present, when filter cartridge ash removal is carried out, the existing connecting flanges are mostly simple in design and lack effective gas flow guide mechanism, and when the blow-off device is subjected to pulse back blowing, the back blowing gas flow directly impacts the filter cartridge filter paper after passing through the connecting flange, the gas flow is disordered when entering the filter cartridge, and the filter paper bottom is subjected to strong impact, resulting in excessive ash removal, damage to the filter paper and influence on the use effect of the filter cartridge after ash removal. SUMMARY

[0003] In order to overcome the defects and problems of the prior art, the utility model provides a connecting flange for filter cartridge ash removal guide, which realizes efficient gas flow guide and improves ash removal efficiency.

[0004] The utility model is realized through the following technical schemes:

[0005] A connecting flange for filter cartridge ash removal guide, comprising a shell, one end of the shell is provided with a first connecting end face for connecting a blow-off device, the other end of the shell is provided with a second connecting end face for connecting a filter cartridge, a variable-diameter cavity is arranged in the shell, the cavity comprises a contraction section and a diffusion section, a flow guide body is arranged in the center of the cavity, an air flow channel is formed between the flow guide body and the shell, and flow guide vanes are arranged in the air flow channel.

[0006] The flow guide vanes are 4-10 in number and are uniformly distributed in the air flow channel, each flow guide vane is arc-shaped and is arranged obliquely.

[0007] The flow guide body comprises a head and a column body, the cross section of the head is semispherical, and the column body is conical.

[0008] The height of the shell is H1, H1 is 150-300mm, the inlet diameter of the cavity in the shell is D1, the narrowest diameter of the middle part of the cavity is D2, the outlet diameter of the cavity is D3, D2 is 0.75 times of D1, and D3 is 1.1-1.5 times of D1.

[0009] The total height of the flow guide body is H2, H2 is 0.8-0.9 times of H1.

[0010] The curvature of the head section of the flow guide is determined by the function x2+y2=R2, R is 60-90mm, the taper angle of the column body of the flow guide is A, A is 15-25°.

[0011] The wall thickness of the flow guide vane is 5-10mm, the total height of the vertical section of the flow guide vane is H3, H3 is 55-65mm, the highest point of the inner arc of the vertical section of the flow guide vane is P1 point, the lowest point is P2 point, the midpoint of the arc is P3 point, the straight line between P1 point and P2 point is chord length, the length of the chord length is L1, L1 is 50-60mm, the angle between the chord length and the vertical straight line is B, B is 40-45°, the vertical distance between P3 point and the chord length is L2, L2 is 5-10mm.

[0012] The first connecting end face and the second connecting end face are provided with mounting holes.

[0013] The utility model discloses a flow guide, can disperse the entered pulse gas, carries out the flow guide to pulse gas, avoids that the gas is directly rushed into the filter cartridge, cooperates the contraction section and diffusion section of the cavity, and the entrance is small, and the exit is big, and the variable speed flow dispersion effect is small, and the energy loss is small, makes the pulse gas diffusion even, and then cooperates the flow guide vane, makes the pulse gas form the cyclone effect, so that the pulse gas that enters the filter cartridge is even and has the cyclone, makes the filter cartridge everywhere is balanced under the pressure, plays the balanced and efficient dust removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model, and

[0015] Figure 2 It is the sectional structure schematic diagram of the utility model, and

[0016] Figure 3 It is the sectional structure schematic diagram of the utility model, and

[0017] Figure 4 It is the sectional structure schematic diagram of the flow guide vane in the utility model, and

[0018] Figure 5 It is the use state schematic diagram of the utility model, and

[0019] Figure 6 It is the airflow state schematic diagram of the utility model.

[0020] In the drawing: 1 - shell, 11 - first connecting end face, 12 - second connecting end face, 13 - mounting hole, 2 - flow guide, 21 - head, 22 - column body, 3 - flow guide vane. DETAILED DESCRIPTION

[0021] For the convenience of those skilled in the art to understand, the utility model is described in further detail below in combination with the drawings and specific embodiments.

[0022] As Figure 1 , Figure 2 , Figure 3 and Figure 4 Indicated, a kind of for filter cartridge ash removal guide connecting flange, including shell 1, one end of shell 1 is equipped with the first connecting end face 11 for connecting spray blowing device 4, the other end of shell 1 is equipped with the second connecting end face 12 for connecting filter cartridge 5, first connecting end face 11 and second connecting end face 12 are equipped with mounting hole 13, by bolt fixed in mounting hole 13, so that shell 1 is connected and fixed with spray blowing device 4 and filter cartridge 5.

[0023] Shell 1 is equipped with the cavity of variable diameter in, cavity includes contraction section and diffusion section, diameter port first contraction then gradually increases. The height of shell 1 is H1, H1 is 150 ~ 300 mm, the inlet diameter of cavity in shell 1 is D1, the narrowest diameter in the middle of cavity is D2, the outlet diameter of cavity is D3, D2 is 0.75 times of D1, D3 is 1.1 ~ 1.5 times of D1, gas is guided, variable speed effect, energy loss is small, and airflow is evenly diffused.

[0024] The center of cavity is equipped with flow guide 2, and flow guide 2 includes head 21 and column body 22, the section of head 21 is semicircular, and column body 22 is conical, and flow guide 2 plays a dispersing role, and pulse gas is guided, to avoid that gas directly rushes into filter cartridge 5. The total height of flow guide is H2, H2 is 0.8 ~ 0.9 times of H1, that is, it can play the role of dispersing and guiding, and also does not affect air inlet. The curvature of the section of the head of flow guide is determined by function x2+y2=R2, R is 60-90mm, the taper angle of the column body of flow guide is A, A is 15 ~ 25 °, the curvature of the head 21 of flow guide 2 gradually decreases in vertical direction, which is beneficial to reduce wind resistance, and the shape of the column body 22 of flow guide 2 plays a good air outlet guiding role.

[0025] The air flow channel is formed between the flow guide 2 and the shell 1, and the flow guide vane 3 is arranged in the air flow channel. The flow guide vane 3 is arranged in the air flow channel in a distributed manner, and each flow guide vane 3 is in an arc shape and is arranged in an inclined manner. The air flow passing through the flow guide vane 3 forms a rotational flow. The wall thickness of the flow guide vane 3 is 5-10 mm. The total height of the vertical section of the flow guide vane 3 is H3, and H3 is 55-65 mm. The highest point of the inner arc line of the vertical section of the flow guide vane 3 is P1, the lowest point is P2, and the midpoint of the arc line is P3. The straight line between P1 and P2 is a chord, and the length of the chord is L1. L1 is 50-60 mm. The angle between the chord and the vertical line is B, and B is 40-45°. The vertical distance between P3 and the chord is L2, and L2 is 5-10 mm. The inclination angle and direction of the flow guide vane 3 are designed so that the gas can obtain a stable, downward rotating flow when passing through. The pulse gas is guided into the filter cartridge 5, uniformly washes the filter paper, reduces the impact on the bottom of the filter cartridge 5 and the filter paper, improves the air pressure distribution of the lower part of the filter cartridge 5, and thus realizes a high-efficiency dust removal effect.

[0026] The use process of the embodiment is as shown in Figure 5 The first connecting end surface 11 of the shell 1 is connected with the blowing device 4, and the second end surface of the shell 1 is connected with the filter cartridge 5. The blowing device 4 generates pulse gas, the pulse gas enters the shell 1, the flow guide 2 can disperse the entering pulse gas, the pulse gas forms a rotational flow after passing through the flow guide vane 3, and the cavity includes a contraction section and a diffusion section. The diameter gradually increases after contraction, has a flow guide and speed change effect on the gas, has small energy loss, and the air flow is uniformly diffused. Therefore, the air flow shown in Figure 6 is formed. The pulse gas is guided into the filter cartridge 5, uniformly washes the filter paper, reduces the impact on the bottom of the filter cartridge 5 and the filter paper, improves the air pressure distribution of the lower part of the filter cartridge 5, and thus realizes a high-efficiency dust removal effect.

[0027] The above embodiment is a preferred implementation manner of the utility model, and is not a limitation on the utility model. Any obvious replacement without departing from the utility model concept is within the protection scope of the utility model.

Claims

1. A connecting flange for guiding filter cartridge cleaning, comprising a housing (1), one end of the housing having a first connecting end face (11) for connecting a jet cleaning device, and the other end of the housing having a second connecting end face (12) for connecting a filter cartridge, characterized in that: The shell has a variable diameter cavity, which includes a contraction section and a diffusion section. A guide fluid (2) is provided in the center of the cavity. An airflow channel is formed between the guide fluid and the shell. A guide vane (3) is provided in the airflow channel.

2. The connecting flange for guiding filter cartridge cleaning according to claim 1, characterized in that: The guide vanes (3) are provided in 4 to 10 units and are evenly distributed in the airflow channel. Each guide vane is arc-shaped and arranged at an angle.

3. The connecting flange for guiding filter cartridge cleaning according to claim 2, characterized in that: The fluid guide (2) includes a head (21) and a column (22), with the head having a semi-circular cross-section and the column having a conical shape.

4. The connecting flange for guiding filter cartridge cleaning according to claim 3, characterized in that: The height of the shell (1) is set to H1, which is 150 to 300 mm. The inlet diameter of the cavity inside the shell is set to D1, the narrowest diameter in the middle of the cavity is set to D2, and the outlet diameter of the cavity is set to D3, where D2 is 0.75 times D1 and D3 is 1.1 to 1.5 times D1.

5. The connecting flange for guiding filter cartridge cleaning according to claim 4, characterized in that: The total height of the guide fluid (2) is set as H2, which is 0.8 to 0.9 times that of H1.

6. The connecting flange for guiding filter cartridge cleaning according to claim 5, characterized in that: The curvature of the head section of the guide fluid (2) is determined by the function x²+y²=R², where R is 60-90mm, and the cone angle of the column of the guide fluid is set as A, where A is 15-25°.

7. The connecting flange for guiding filter cartridge cleaning according to claim 6, characterized in that: The wall thickness of the guide vane (3) is 5-10 mm; the total height of the vertical section of the guide vane is set as H3, and H3 is 55-65 mm; the highest point of the inner arc of the vertical section of the guide vane is set as point P1, the lowest point is set as point P2, the midpoint of the arc is set as point P3, the straight line connecting point P1 and point P2 is the chord length, the length of the chord length is set as L1, L1 is 50-60 mm, the angle between the chord length and the vertical line is set as B, B is 40-45°, the vertical distance between point P3 and the chord length is set as L2, L2 is 5-10 mm.

8. The connecting flange for guiding filter cartridge cleaning according to any one of claims 1-7, characterized in that: Mounting holes (13) are provided on both the first connecting end face (11) and the second connecting end face (12).

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