Quick-release pneumatic conveying gulp valve

Abstract

The utility model discloses a quick-release pneumatic conveying gulp valve which comprises a pneumatic conveying main pipeline and a gulp valve body, the top of the pneumatic conveying main pipeline is fixedly connected with a gulp pipe, the top end of the gulp pipe is fixedly connected with a first connecting disc, and a plurality of positioning holes are formed in the first connecting disc. The bottom end of the gulp valve body is fixedly connected with a second connecting disc, the bottom of the second connecting disc is fixedly connected with a plurality of positioning shafts, the positioning shafts are connected with the positioning holes in an inserted mode, a sealing gasket is arranged between the first connecting disc and the second connecting disc, and inclined face grooves are formed in the bottom of the first connecting disc and the top of the second connecting disc. According to the gulp valve, the hoop wraps the outer sides of the circumferences of the first connecting disc and the second connecting disc, and then the fixing bolt is tightened to tighten the hoop, so that the first connecting disc and the second connecting disc are fixed together, the gulp valve body is quickly disassembled and replaced, and the gulp valve is simple, convenient and quick to operate.

Description

Technical Field

[0001] This utility model relates to the field of air replenishment valve technology, and in particular to a quick-release pneumatic conveying air replenishment valve. Background Technology

[0002] Pneumatic conveying systems are one of the main conveying devices for powder materials. The entire system consists of several major parts, including a feeding tank, compressed air, conveying pipelines, ash silos, and a PLC or DCS automation control device. The conveying pipeline from the feeding tank to the ash silo varies in length depending on the system design. Especially when the conveying distance is long, the conveying pipeline is prone to blockage. To solve the blockage problem, a compressed air pipeline is often added along with the ash conveying pipeline during system design, with a make-up air valve installed between the compressed air and the ash conveying pipeline. When a blockage occurs in the ash conveying pipeline, the make-up air valve transmits a pressure signal to a pneumatic or electric actuator, replenishing the ash conveying pipeline with compressed air. The increased compressed air entering the conveying pipeline blows away the material at the blockage point, preventing further blockage.

[0003] Currently, existing air supply valves cannot be quickly disassembled when malfunctions occur and require repair or replacement. This makes the actual disassembly of the exhaust valve very cumbersome, time-consuming, and labor-intensive. Furthermore, reinstallation cannot guarantee its sealing performance. Therefore, in order to improve the disassembly efficiency of the air supply valve and to promote technological progress in the industry and enhance core technological competitiveness, this application proposes a new implementation scheme that differs from the existing pneumatic conveying air supply valve and application method. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing air replenishment valves and to propose a quick-release pneumatic conveying air replenishment valve.

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

[0006] A quick-release pneumatic conveying air replenishment valve includes a pneumatic conveying main pipeline and an air replenishment valve body. An air replenishment pipe is fixedly connected to the top of the pneumatic conveying main pipeline, and a first connecting plate is fixedly connected to the top of the air replenishment pipe. The first connecting plate has multiple positioning holes. A second connecting plate is fixedly connected to the bottom of the air replenishment valve body, and multiple positioning shafts are fixedly connected to the bottom of the second connecting plate. The positioning shafts are inserted into the positioning holes. A sealing gasket is provided between the first and second connecting plates. Both the bottom of the first and second connecting plates have inclined grooves. Two clamps are wrapped around the outer circumference of both the first and second connecting plates. Connecting ears are fixedly connected to both ends of the clamps, and a fixing bolt is inserted between the two connecting ears. Wedge-shaped rings are fixedly connected to the inner top and bottom walls of the clamps, and the wedge-shaped rings contact the inclined grooves.

[0007] Furthermore, a one-way valve is provided inside the air supply pipe.

[0008] Furthermore, the outer wall of the clamp is fixedly connected with multiple reinforcing ribs.

[0009] Furthermore, the air supply valve body is equipped with an electric push rod.

[0010] Furthermore, a metal flexible hose is provided at one end of the air replenishment valve body.

[0011] Furthermore, one end of the metal hose and one end of the air supply valve body are both fixed with connecting flanges, and the two connecting flanges are fixed together by bolts.

[0012] Furthermore, the sealing gasket is provided with multiple perforations through which the positioning shaft passes.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By wrapping the clamp around the outer circumference of the first and second connecting discs and then tightening the fixing bolts to secure the clamp, the first and second connecting discs are fixed together, allowing for quick disassembly and replacement of the air supply valve body. The operation is simple, convenient and fast.

[0015] 2. The gasket provides an initial seal between the air supply pipe and the air supply valve body. As the clamp tightens, the wedge ring gradually slides into the inclined groove, causing the first and second connecting discs to be squeezed inward, thereby improving the sealing between the air supply valve body and the air supply pipe and preventing gas leakage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a quick-release pneumatic conveying air replenishment valve proposed in this utility model.

[0017] Figure 2 This is a rear view structural diagram of a quick-release pneumatic conveying air replenishment valve proposed in this utility model.

[0018] Figure 3 This is an exploded structural diagram of a quick-release pneumatic conveying air replenishment valve proposed in this utility model.

[0019] Figure 4 This is a cross-sectional structural diagram of a quick-release pneumatic conveying air replenishment valve proposed in this utility model.

[0020] In the diagram: 1. Main pneumatic conveying pipeline; 2. Air supply pipe; 3. First connecting plate; 4. Sealing gasket; 5. Positioning hole; 6. Air supply valve body; 7. Second connecting plate; 8. Positioning shaft; 9. Inclined groove; 10. Clamp; 11. Connecting ear; 12. Fixing bolt; 13. Reinforcing rib; 14. Wedge ring; 15. Electric push rod; 16. Connecting flange; 17. Metal hose. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-4 A quick-release pneumatic conveying air replenishment valve includes a pneumatic conveying main pipeline 1 and an air replenishment valve body 6. The model of the air replenishment valve body 6 can be a DYFC-II type electric three-way material distribution valve, which can be controlled and driven by an external PLC.

[0023] The top of the pneumatic conveying main pipeline 1 is welded with an air supply pipe 2, and the top of the air supply pipe 2 is welded with a first connecting plate 3. The first connecting plate 3 is provided with multiple positioning holes 5. The bottom of the air supply valve body 6 is welded with a second connecting plate 7. The bottom of the second connecting plate 7 is integrally formed with multiple positioning shafts 8. The positioning shafts 8 are inserted into the positioning holes 5 to achieve quick centering, thereby facilitating the merging of the first connecting plate 3 and the second connecting plate 7. A sealing gasket 4 is provided between the first connecting plate 3 and the second connecting plate 7. The sealing gasket 4 is made of fluororubber with an initial thickness of 3mm and a thickness of 2.1mm after compression. The sealing gasket 4 is clamped to seal the space between the first connecting plate 3 and the second connecting plate 7.

[0024] The bottom of the first connecting plate 3 and the top of the second connecting plate 7 are both provided with inclined grooves 9. The inclined grooves 9 have an inclination angle of 55° and a depth of 2mm. The outer circumference of the first connecting plate 3 and the second connecting plate 7 are jointly wrapped with two clamps 10. The clamps 10 are made of 316L stainless steel with a thickness of 6mm. Both ends of the clamps 10 are welded with connecting ears 11. A fixing bolt 12 is inserted between the two connecting ears 11. The connecting ears 11 at both ends of the clamps 10 are provided with anti-loosening holes, into which a safety pin can be inserted to prevent the fixing bolt 12 from vibrating and falling off.

[0025] Wrap the clamp 10 around the outer circumference of the first connecting plate 3 and the second connecting plate 7, then insert the fixing bolt 12 into the connecting ear 11, and tighten the fixing bolt 12 to tighten the clamp 10, thereby fixing the first connecting plate 3 and the second connecting plate 7 together.

[0026] The top and bottom inner walls of the clamp 10 are integrally formed with wedge-shaped rings 14. The gap between the wedge-shaped ring 14 and the inclined groove 9 is ≤0.1mm. The wedge-shaped ring 14 contacts the inclined groove 9. As the clamp 10 tightens, the wedge-shaped ring 14 gradually slides into the inclined groove 9, thereby causing the first connecting plate 3 and the second connecting plate 7 to be squeezed inward, which further clamps the sealing gasket 4, thereby improving the sealing performance between the air supply valve body 6 and the air supply pipe 2.

[0027] The gas supply pipe 2 is equipped with a one-way valve to prevent gas backflow.

[0028] The outer wall of the clamp 10 is integrally formed with multiple reinforcing ribs 13. The reinforcing ribs 13 on the outside of the clamp 10 improve the rigidity of the overall structure and prevent deformation caused by internal high pressure.

[0029] The air replenishment valve body 6 is equipped with an electric push rod 15. When the operator notices that air replenishment is needed, he operates the PLC controller, and the electric push rod 15 works to open and close the air replenishment valve, so that air replenishment can be performed.

[0030] One end of the air replenishment valve body 6 is provided with a metal hose 17. One end of the metal hose 17 and one end of the air replenishment valve body 6 are both fixed with a connecting flange 16. The two connecting flanges 16 are fixed together by bolts. The air hose 17 is connected to the main compressed air pipeline output by the air compressor Roots blower as the source of replenishment air.

[0031] The sealing gasket 4 has multiple perforations through which the positioning shaft 8 passes, thus facilitating the positioning and installation of the sealing gasket 4.

[0032] The working principle of this embodiment is as follows: In use, firstly, the positioning shaft 8 of the second connecting plate 7 is inserted through the through hole of the sealing gasket 4 and into the positioning hole 5 of the first connecting plate 3, thereby merging the first connecting plate 3 and the second connecting plate 7 together. Then, the clamp 10 is wrapped around the outer circumference of the first connecting plate 3 and the second connecting plate 7. Then, the fixing bolt 12 is inserted into the connecting ear 11, and the fixing bolt 12 is tightened to tighten the clamp 10, thereby fixing the first connecting plate 3 and the second connecting plate 7 together. At the same time, the sealing gasket 4 is clamped to seal the space between the first connecting plate 3 and the second connecting plate 7.

[0033] As the clamp 10 tightens, the wedge ring 14 gradually slides into the inclined groove 9, thereby causing the first connecting plate 3 and the second connecting plate 7 to be squeezed inward, further clamping the sealing gasket 4, thereby improving the sealing between the air supply valve body 6 and the air supply pipe 2, and thus preventing gas leakage.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-release pneumatic conveying air replenishment valve, comprising a pneumatic conveying main pipeline (1) and an air replenishment valve body (6), characterized in that, The top of the pneumatic conveying main pipeline (1) is fixedly connected to an air supply pipe (2), the top of the air supply pipe (2) is fixedly connected to a first connecting plate (3), the first connecting plate (3) is provided with multiple positioning holes (5), the bottom of the air supply valve body (6) is fixedly connected to a second connecting plate (7), the bottom of the second connecting plate (7) is fixedly connected to multiple positioning shafts (8), the positioning shafts (8) are inserted into the positioning holes (5), and a sealing gasket (4) is provided between the first connecting plate (3) and the second connecting plate (7). The bottom of the first connecting plate (3) and the top of the second connecting plate (7) are both provided with inclined grooves (9). The outer circumference of the first connecting plate (3) and the second connecting plate (7) are wrapped with two clamps (10). Both ends of the clamps (10) are fixedly connected with connecting ears (11). A fixing bolt (12) is inserted between the two connecting ears (11). The inner top wall and the inner bottom wall of the clamps (10) are fixedly connected with wedge rings (14). The wedge rings (14) are in contact with the inclined grooves (9).

2. The quick-release pneumatic conveying air supply valve according to claim 1, characterized in that, The air supply pipe (2) is equipped with a one-way valve.

3. The quick-release pneumatic conveying air supply valve according to claim 1, characterized in that, The outer wall of the clamp (10) is fixedly connected with multiple reinforcing ribs (13).

4. The quick-release pneumatic conveying air supply valve according to claim 1, characterized in that, An electric push rod (15) is provided on the body (6) of the air replenishment valve.

5. A quick-release pneumatic conveying air supply valve according to claim 1, characterized in that, One end of the air supply valve body (6) is provided with a metal hose (17).

6. A quick-release pneumatic conveying air supply valve according to claim 5, characterized in that, One end of the metal hose (17) and one end of the air supply valve body (6) are both fixed with connecting flanges (16), and the two connecting flanges (16) are fixed together by bolts.

7. A quick-release pneumatic conveying air supply valve according to claim 1, characterized in that, The sealing gasket (4) has multiple perforations, through which the positioning shaft (8) passes.

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