Blowing flow aid

Abstract

A blowing flow aiding device comprises a valve body, the valve body comprises an air inlet end and an air outlet end, and a cavity allowing air to flow is formed in the valve body; the welding sleeve is detachably and fixedly connected with the exhaust end of the valve body; the spring guide is installed in the valve body, a shaft hole is formed in the spring guide, an annular boss is arranged outside the spring guide, and a plurality of air holes are formed in the annular boss; the valve rod comprises an end cover and a rod body, the rod body of the valve rod penetrates out of the shaft hole of the spring guide, and a pressing component is installed at the end, away from the end cover, of the rod body; the spring is arranged on the spring guide in a sleeving mode, one end of the spring abuts against the annular boss, and the other end of the spring abuts against the pressing component. The device is compact in structure, small in size, light in weight, capable of being connected through threads or a fast-assembly clamp, capable of supporting fast assembly and disassembly, convenient to install and maintain, wide in blowing range, large in pressure and capable of achieving efficient arch breaking.

Description

Technical Field

[0001] This utility model belongs to the technical field of powder spraying and arch breaking device, and particularly relates to a spraying flow aid. Background Technology

[0002] The silo arch-breaking device is a key piece of equipment for solving blockages caused by arching, caking, and moisture during material storage or transportation. Traditional air cup arch-breaking devices have low blowing force and are only suitable for loose materials, with poor effect on caking or moist materials; air hammer arch-breaking devices use pneumatic hammers to periodically strike the silo wall to transmit impact force to loosen the material, but they cannot effectively break the arches inside caking materials and are prone to damaging the silo body; air cannon arch-breaking devices release gas instantaneously from a high-pressure air tank to form a shock wave, which has a better arch-breaking effect, but they are large in size, complex to install, and have high disassembly and maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a jet flow aid to solve the technical problems of insufficient jet force, limited application range, and complex installation and maintenance in the prior art.

[0004] To achieve the above objectives, the specific technical solution of this utility model for a jet-blowing flow aid is as follows:

[0005] A jet flow aid includes: a valve body with an inlet and an outlet, the valve body having an internal cavity for gas flow; a welded sleeve detachably and fixedly connected to the outlet of the valve body; a spring guide installed inside the valve body, the spring guide having an internal shaft hole and an external annular boss with multiple air holes; a valve stem including an end cap and a stem body, the stem body passing through the shaft hole of the spring guide, the end of the stem body away from the end cap having a clamping component installed thereon; and a spring sleeved on the spring guide, one end of which abuts against the annular boss and the other end against the clamping component; in a static state, the spring is in a slightly compressed state, causing the end cap of the valve stem to close the outlet of the valve body; when gas flows, the valve stem moves under the action of air pressure, opening the outlet.

[0006] Furthermore, the valve body cavity is provided with a limiting step, and the outer edge of the annular boss is provided with a stop portion, the limiting step abutting against the stop portion.

[0007] Furthermore, the valve body has an inner chamfer at the exhaust port, and the valve stem end cap is connected to the stem body via a frustum, the cone angle of which is adapted to the inner chamfer at the exhaust port of the valve body.

[0008] Furthermore, the cone angle of the frustum is 90°-120°.

[0009] Furthermore, the valve stem has a thread at its end, and the clamping component includes a guide sleeve and a nut, a spring washer, and a locking nut for adjusting and fixing the guide sleeve. The guide sleeve is sleeved on the valve stem and abuts against one end of the spring.

[0010] Furthermore, the valve body has a first connecting thread at the air inlet end for connecting to the air inlet device, a second connecting thread on the outside of the exhaust end, and an internal thread inside the welding sleeve. The exhaust end of the valve body is fixedly connected to the welding sleeve by the thread.

[0011] Furthermore, the valve body exhaust end is provided with a first engaging part on its exterior, and the welding sleeve is provided with a second engaging part. The first engaging part and the second engaging part are fixedly connected by a quick-release clamp.

[0012] Furthermore, the valve body is connected to the air intake device via a connecting sleeve. The air intake end of the valve body is provided with a third engaging part, and the connecting sleeve is provided with a fourth engaging part and a third connecting thread connected to the air intake device. The third engaging part and the fourth engaging part are fixedly connected by a quick-release clamp.

[0013] Furthermore, the air inlet of the jet flow aid is connected to the air inlet pulse valve.

[0014] The jet-blowing flow aid of this utility model has the following advantages:

[0015] 1. The air inlet of the jet-blowing flow aid of this utility model is directly connected to the pulse valve, which shortens the air lifting flow distance. The instantaneous air supply is controlled by the pulse valve, and the instantaneous jet pressure can reach 0.8-1.2MPa, which can break down heavily caking materials and achieve efficient arch breaking.

[0016] 2. The jet-blowing flow aid of this utility model has a compact structure, small size and light weight. It is connected by threads or quick-release clamps, which supports quick disassembly and assembly, and is convenient for installation and maintenance.

[0017] 3. By setting an inner chamfer at the exhaust port, in conjunction with the frustum design on the valve stem, a funnel-shaped airflow channel is formed when the exhaust port is opened, increasing the blowing range. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the first embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the valve body in the first embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the spring guide structure in the first embodiment of the present invention;

[0021] Figure 4This is a schematic diagram of the valve stem structure in the first embodiment of the present invention;

[0022] Figure 5 This is a cross-sectional structural diagram of the second embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the first embodiment of the present invention during operation;

[0024] The markings in the diagram are as follows: 10. Valve body; 11. Limiting step; 12. Inner chamfer; 13. First connecting thread; 14. Second connecting thread; 15. First engaging part; 16. Third engaging part; 20. Welded sleeve; 21. Internal thread; 22. Second engaging part; 30. Spring guide; 31. Annular boss; 32. Air hole; 33. Stop part; 40. Valve stem; 41. End cap; 42. Rod body; 43. Frustum; 50. Spring; 60. Clamping component; 61. Guide sleeve; 62. Nut; 63. Spring washer; 64. Locking nut; 70. Connecting sleeve; 71. Fourth engaging part; 72. Third connecting thread; 80. Quick-release clamp; 90. Pulse valve. Detailed Implementation

[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a jet-blowing flow aid according to this utility model.

[0026] Example 1

[0027] like Figure 1-4As shown, the present invention provides a jetting flow aid comprising a valve body 10, a welding sleeve 20, a spring guide 30, a valve stem 40, a spring 50, and a clamping component 60. The valve body 10 has a hollow cavity with a limiting step 11 inside. The inlet end of the valve body 10 has a first connecting thread 13, the exhaust end has a second connecting thread 14, and the exhaust port has an inner chamfer 12. The welding sleeve 20 is cylindrical, with an internal thread 21 along its axial direction that mates with the first connecting thread 13 on the valve body 10. The valve body 10 and the welding sleeve 20 are fixed by a threaded connection. The spring guide 30 is cylindrical, with an axial hole inside and an annular boss 31 on its exterior. Multiple air holes 32 are evenly arranged on the annular boss 31, and a stop 33 is provided on the outer edge of the annular boss 31. The spring guide 30 is installed in the internal cavity of the valve body 10 and, through the stop 33, is fixed. Part 33 abuts against the limiting step 11 to limit its position; the valve stem 40 includes an end cap 41 and a stem 42. The end of the stem 42 away from the end cap 41 is provided with an external thread. The stem 42 of the valve stem 10 passes through the shaft hole of the spring guide 30. The end cap 41 is used to open or close the exhaust port of the valve body 10; the spring 50 is sleeved on the outside of the spring guide 30. One end of the spring 50 abuts against the annular boss 31, and the other end abuts against the clamping component 60. In a static state, the spring 50 is in a slightly compressed state, causing the end cap 41 of the valve stem 40 to close the exhaust port of the valve body 10. When there is gas flow, the valve stem 40 moves under the action of air pressure, and the spring 50 is further compressed to open the exhaust port, thereby blowing out the arch. When the airflow stops, the spring 50 returns the valve stem 40 to its original position under its tension, and the end cap 41 fits tightly against the valve body 10 to close the exhaust port and prevent the fluid or material from flowing back.

[0028] It should be noted that the stop part 33 can be adopted Figure 3 The method described above can be achieved by cutting a small right angle off the outer edge of the annular boss 31, or the end face of the annular boss 31 can be used as a stop, as long as it can limit the spring guide 30.

[0029] Furthermore, the end cap 41 of the valve stem 40 is connected to the stem body 42 via a frustum 43. The cone angle of the frustum 43 is adapted to the inner chamfer 12 provided at the exhaust port of the valve body 10. Preferably, the cone angle of the frustum 43 is 90°-120°. The inner chamfer at the exhaust port, in conjunction with the frustum design on the valve stem, forms a funnel-shaped airflow channel when the exhaust port is opened, increasing the blowing range.

[0030] Furthermore, the clamping component 60 includes a guide sleeve 61 and a nut 62, a spring washer 63, and a locking nut 64 for adjusting and fixing the position of the guide sleeve 61. The guide sleeve 61 is sleeved on the valve stem 40 and abuts against one end of the spring 50. The nut 62, spring washer 63, and locking nut 64 are sequentially installed on the external thread of the valve stem 10. By rotating the nut 62 to push the guide sleeve 61, the tension of the spring 50 is adjusted, ensuring that the exhaust port remains closed under the action of spring tension when static, and opens under the push of airflow.

[0031] It should be noted that the clamping component 60 can also adopt other structural forms, as long as it ensures that the exhaust port is closed under the action of spring tension when static, and can be opened under the push of airflow. For example, when ensuring that the spring 50 is in the set compression state, a slot is opened on the rod 42 at the position corresponding to the guide sleeve 61, and the guide sleeve 61 is limited by installing a retaining spring on the slot.

[0032] Example 2

[0033] like Figure 5 As shown, based on Embodiment 1, further improvements are made to the valve body 10 and the welding sleeve 20 by replacing the threaded connection with a chuck connection. A first engaging part 15 is provided on the outside of the exhaust end of the valve body 10, and a second engaging part 22 is provided on the welding sleeve 20. The first engaging part 15 and the second engaging part 22 are fixedly connected by a quick-release clamp 80, realizing quick installation and disassembly between the valve body 10 and the welding sleeve 20.

[0034] Furthermore, the valve body 10 can adopt a split structure, which is connected to the air intake device through the connecting sleeve 70. A third engaging part 16 is provided at the air intake end of the valve body 10, and a fourth engaging part 71 and a third connecting thread 72 connected to the air intake device are provided on the connecting sleeve 70. The third engaging part 16 and the fourth engaging part 71 are fixedly connected by a quick-release clamp 80. A sealing ring is provided between the contact surfaces of the two engaging parts to prevent gas leakage.

[0035] It should be noted that the first locking part 15, the second locking part 22, the third locking part 16, and the fourth locking part 71 are all quick-opening flange structures. They adopt an assembly connection method that combines quick-opening flanges with quick-installing clamps. When the jet flow aid is blocked or parts need to be replaced, it can be quickly disassembled and installed, which improves the efficiency of daily maintenance.

[0036] like Figure 6As shown, the present invention relates to a jet flow aid. During installation, firstly, according to the need to set the jet points, mounting holes are opened on the silo wall. Multiple mounting holes can be set according to actual needs. Then, the welding sleeve is welded and fixed at the mounting hole. The assembled valve body component is fixedly connected to the welding sleeve. Finally, a pulse valve is installed at the air inlet end of the jet flow aid. After the pulse valve is connected to the air source, the installation is completed.

[0037] In operation, when the pulse valve responds to the signal, air is supplied instantaneously. As the airflow enters from the inlet, the air pressure pushes the valve stem away from the valve body, opening the exhaust port. The airflow quickly diffuses to the inner wall, breaking up arches. When the airflow stops, the spring acts on the valve stem, causing it to fit tightly against the valve body, closing the exhaust port and preventing backflow of fluid or material. The pulse valve can be set to manual start / stop or automatic intermittent start / stop according to system needs to reduce air source consumption; alternatively, an ultrasonic sensor can be installed in the silo to monitor the material accumulation status in real time and transmit electrical signals to the pulse valve to control its start / stop, achieving automatic arch breaking.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A blow diverter characterized by, The injection flow guide comprises, A valve body (10) comprising an air inlet end and an air outlet end, and a cavity inside the valve body (10) for gas flow; A welding sleeve (20) detachably fixedly connected with the air outlet end of the valve body (10); A spring guide (30) installed inside the valve body (10), the spring guide (30) comprising an axial hole inside and an annular protrusion (31) outside, and a plurality of air holes (32) provided on the annular protrusion (31); A valve rod (40) comprising an end cap (41) and a rod body (42), the rod body (42) of the valve rod (40) extending out of the axial hole of the spring guide (30), and a compression component (60) installed on the end of the rod body (42) away from the end cap (41); A spring (50) sleeved on the spring guide (30), one end of the spring (50) abutting against the annular protrusion, and the other end of the spring (50) abutting against the compression component (60); In a static state, the spring (50) is in a slightly compressed state, so that the end cap (41) of the valve rod (40) closes the air outlet of the valve body (10), and when gas flows, the valve rod (40) moves under the action of gas pressure to open the air outlet.

2. A blow diverter according to claim 1, wherein, The cavity of the valve body (10) is provided with a limiting step (11), and the outer edge of the annular protrusion (31) is provided with a stop portion (33), the limiting step (11) abutting against the stop portion (33).

3. A jet flow aid according to claim 1, characterized in that The air outlet of the valve body (10) is provided with an inner chamfer (12), the end cap (41) of the valve rod (40) is connected with the rod body (42) through a circular table (43), and the taper angle of the circular table (43) is matched with the inner chamfer (12) provided at the air outlet of the valve body (10).

4. A jet flow aid according to claim 3, characterized in that The taper angle of the circular table (43) is 90°-120°.

5. A jet flow aid according to claim 1, characterized in that The end of the valve rod (40) is provided with a thread, the compression component (60) comprises a guide sleeve (61), a nut (62) for adjusting and fixing the guide sleeve (61), a spring washer (63), and a locking nut (64), the guide sleeve (61) is sleeved on the valve rod (40) and abuts against one end of the spring (50).

6. A jet flow aid according to claim 1, characterized in that The air inlet end of the valve body (10) is provided with a first connecting thread (13) connected with an air inlet device, the air outlet end is provided with a second connecting thread (14) outside, the welding sleeve (20) is provided with an inner thread (21) inside, and the air outlet end of the valve body (10) is fixedly connected with the welding sleeve (20) through the threads.

7. A jet flow aid according to claim 1, characterized in that The air outlet end of the valve body (10) is provided with a first clamping portion (15), the welding sleeve (20) is provided with a second clamping portion (22), and the first clamping portion (15) and the second clamping portion (22) are fixedly connected through a quick-mounting clamp (80).

8. A jet flow aid according to claim 7, characterized in that The valve body (10) is connected with the air inlet device through a connecting sleeve (70), a third clamping part (16) is arranged on the air inlet end of the valve body (10), a fourth clamping part (71) and a third connecting thread (72) connected with the air inlet device are arranged on the connecting sleeve (70), and the third clamping part (16) and the fourth clamping part (71) are fixedly connected through a quick-mounting clamp (80).

9. A flow conditioner according to any one of claims 1 to 8, wherein The air inlet end of the injection air guide vane is connected with an air inlet pulse valve (90).

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