Chemical raw material conveying device with flow monitoring function

Abstract

The application discloses a chemical raw material conveying device with a flow monitoring function, which comprises a connecting pipe, a front pipe and a rear pipe, a mounting plate is fixedly connected to the middle part of the connecting pipe, a first rotating shaft is rotatably connected to the middle part of the mounting plate, a fan blade is fixedly connected to one end of the front pipe in the direction of the first rotating shaft, a first bevel gear is fixedly connected to the other end of the first rotating shaft, a second bevel gear is meshingly connected to the outer side of the upper part of the first bevel gear, a rotating speed measuring instrument is fixedly connected to the tail part of the second bevel gear and penetrates through the connecting pipe, and the rotating speed measuring instrument is fixedly connected to the outer side of the connecting pipe. Compared with a traditional external electronic sensor, the measuring error is reduced, the high-viscosity and corrosive chemical raw material is adapted, and the service life is long.

Description

Technical Field

[0001] This invention relates to the field of chemical raw material conveying equipment technology, specifically a chemical raw material conveying device with flow monitoring function. Background Technology

[0002] Chemical raw material conveying devices are specialized equipment or integrated systems used in industries such as chemical, pharmaceutical, metallurgy, and daily chemicals to realize the transfer and transmission of various chemical raw materials. Their core function is to safely, stably, and accurately transport solid, liquid, and gaseous chemical raw materials from storage units (storage tanks, silos, gas cylinders) to reaction units, processing units, or subsequent storage and transportation units. They are key equipment connecting all stages of chemical production.

[0003] Existing chemical raw material conveying devices have the following drawbacks: low flow monitoring accuracy: they rely on external electronic sensors, are easily affected by raw material corrosion and impurities, have slow response, and large measurement errors; and cumbersome flow regulation: they lack an integrated regulation structure, require additional valves or pipeline replacement, and cannot achieve stepless precise regulation. Summary of the Invention

[0004] The purpose of this invention is to provide a chemical raw material conveying device with flow monitoring function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a chemical raw material conveying device with flow monitoring function, comprising a connecting pipe, a front pipe, and a rear pipe. A mounting plate is fixedly connected to the middle of the connecting pipe, and a first rotating shaft is rotatably connected to the middle of the mounting plate. A fan blade is fixedly connected to one end of the first rotating shaft facing the front pipe, and a first bevel gear is fixedly connected to the other end of the first rotating shaft. A second bevel gear is meshed with the upper outer side of the first bevel gear. A speed measuring instrument is fixedly connected to the tail of the second bevel gear through the connecting pipe. The speed measuring instrument is fixedly connected to the outside of the connecting pipe. A sliding groove is formed on the side of the connecting pipe facing the front pipe, and a mounting ring is slidably connected inside the sliding groove. A rotating ring is fixedly connected to one side of the mounting ring, and the rotating ring is rotatably connected between the connecting pipe and the front pipe. A fixed ring is fixedly connected to the end of the front pipe facing the connecting pipe. Interacting connecting holes and bypass holes are formed in the middle and around the perimeter of the mounting ring and the fixed ring.

[0006] Preferably, a protective box is fixedly connected to one side of the mounting plate, and the protective box is sleeved on the outside of the first bevel gear and the second bevel gear.

[0007] Preferably, a motor frame is fixedly connected to the upper part of the connecting pipe, a motor is fixedly connected inside the motor frame, a power gear is fixedly connected to the power end of the motor through the motor frame, and a gear ring is fixedly connected to the outer side of the rotating ring, with the power gear meshing with the gear ring.

[0008] Preferably, a fixing plate is fixedly connected to both sides of the connecting pipe, and a push screw is threadedly connected inside the fixing plate. An arc-shaped groove is opened on both sides of the rotating ring. One end of the push screw is rotatably connected inside the arc-shaped groove. A push plate is fixedly connected to the outside of the push screw. Positioning boxes that cooperate with the push screw are fixedly connected to both sides of the front pipe. Several sets of positioning plates are fixedly connected to one side of the rear pipe. Several sets of positioning grooves that cooperate with the positioning plates are opened on one side of the connecting pipe.

[0009] Preferably, a sealing groove is provided on one side of the rotating ring, and a sealing ring is fixedly connected to one end of the front tube, which is directly opposite the sealing groove. A sealing ring is sleeved inside the sliding groove and on one side of the rotating ring.

[0010] Preferably, the lower inner side of the front tube has three sets of discharge holes, and the lower outer side of the front tube has a control groove facing the discharge holes. A baffle is slidably connected inside the control groove, and guide rods are slidably connected inside both ends of the baffle. Both ends of the guide rods are fixedly connected inside the control groove. A second spring is fixedly connected between the baffle and the inner wall of the control groove, and the second spring is sleeved on the outside of the guide rods.

[0011] Preferably, the lower part of the baffle is provided with a pull groove.

[0012] Preferably, a filter plate is fixedly connected inside the connecting pipe, a second rotating shaft is fixedly connected to one side of the fan blade, a fixing plate is fixedly connected to the other end of the second rotating shaft through the filter plate, a sliding cylinder is slidably connected to the outside of the fixing plate, and a scraper is fixedly connected to the side of the sliding cylinder facing the filter plate.

[0013] Preferably, a first spring is fixedly connected between the fixing plate and the sliding cylinder, and the first spring is sleeved on the outside of the second rotating shaft.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention utilizes a fan blade, a first bevel gear, a second bevel gear, and a speed measuring instrument. The fluid directly drives the fan blade to rotate, and mechanical transmission transmits the speed. This eliminates the corrosion and interference issues associated with electronic sensors, and the speed is linearly related to the flow rate. Compared to traditional external electronic sensors, measurement errors are reduced, it is suitable for high-viscosity and corrosive chemical raw materials, and has a long service life.

[0016] 2. The present invention also uses a second rotating shaft, a scraper, and a first spring. The fan blade rotates synchronously to drive the scraper to closely adhere to the filter plate for cleaning. The spring ensures the fit and removes impurities in real time. The filter plate clogging rate is reduced compared to traditional devices. There is no need for manual shutdown for cleaning, which significantly improves production continuity and reduces raw material waste caused by clogging.

[0017] 3. The present invention also uses a motor, a power gear, a rotating ring, and a fixed ring. The motor drives the rotating ring to rotate, and the overlapping area of ​​the through holes is adjusted to achieve flow regulation. There is no need to replace the pipeline or valve. It can adapt to the flow requirements of different processes. Compared with traditional fixed flow devices, it can be adapted to multiple scenarios such as chemical batching and pharmaceutical conveying, thus improving adaptability.

[0018] 4. The present invention also achieves the fixing and separation of the connecting pipe and the front pipe by pushing the screw, positioning plate and positioning groove, and rotating the screw. The positioning plate quickly positions the rear pipe without disassembling the entire pipeline, which shortens the maintenance and disassembly time, improves efficiency, and reduces maintenance labor costs and downtime losses.

[0019] 5. The present invention also incorporates a baffle, a discharge hole, and a second spring. Under normal conditions, the spring blocks the discharge hole. In case of failure, the baffle can be manually pulled to quickly discharge the material, thus preventing raw material leakage. Compared with no emergency discharge device, the risk of raw material leakage is reduced, environmental pollution and safety accidents are reduced, and the invention meets the environmental protection and safety requirements of chemical production. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the present invention;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the present invention;

[0024] Figure 5 This is an enlarged view of the structure at point A of the present invention;

[0025] Figure 6 This is an enlarged view of the structure at point B of the present invention;

[0026] Figure 7 This is an enlarged view of the structure at point C in this invention.

[0027] In the diagram: 1. Connecting pipe; 2. Mounting plate; 3. First rotating shaft; 4. Fan blade; 5. First bevel gear; 6. Second bevel gear; 7. Tachometer; 8. Protective box; 9. Filter plate; 10. Second rotating shaft; 11. Fixing plate; 12. Sliding cylinder; 13. First spring; 14. Scraper; 15. Sliding groove; 16. Mounting ring; 17. Rotating ring; 18. Fixing ring; 19. Connecting hole; 20. Bypass hole; 21. Motor 21. Frame; 22. Motor; 23. Power gear; 24. Gear ring; 25. Arc groove; 26. Fixing plate; 27. Push screw; 28. Push plate; 29. ​​Positioning box; 30. Front tube; 31. Sealing groove; 32. Sealing ring; 33. Sealing ring; 34. Control groove; 35. Baffle; 36. Discharge hole; 37. Guide rod; 38. Second spring; 39. Pulling groove; 40. Rear tube; 41. Positioning plate; 42. Positioning groove. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-7 This invention provides a technical solution: a chemical raw material conveying device with flow monitoring function, comprising a connecting pipe 1, a front pipe 30, and a rear pipe 40. A mounting plate 2 is fixedly connected to the middle of the connecting pipe 1 by welding. A first rotating shaft 3 is rotatably connected to the middle of the mounting plate 2 via a deep groove ball bearing. A fan blade 4 is fixedly connected to one end of the first rotating shaft 3 facing the front pipe 30 by welding. A first bevel gear 5 is fixedly connected to the other end of the first rotating shaft 3 via a key. A second bevel gear 6 is meshed with the upper outer side of the first bevel gear 5. The tail of the second bevel gear 6 penetrates the connecting pipe 1 via a coupling. A speed measuring instrument 7 is bolted to the outside of the connecting pipe 1. The connecting pipe 1 has a sliding groove 15 on the side facing the front pipe 30. A mounting ring 16 is slidably connected inside the sliding groove 15 with clearance fit. A rotating ring 17 is fixedly connected to one side of the mounting ring 16 by welding. The rotating ring 17 is rotatably connected between the connecting pipe 1 and the front pipe 30. A fixing ring 18 is fixedly connected to the end of the front pipe 30 facing the connecting pipe 1 by welding. The mounting ring 16 and the fixing ring 18 have mutually cooperating connecting holes 19 and bypass holes 20 in the middle and around the perimeter.

[0030] A protective box 8 is fixedly connected to one side of the mounting plate 2 by welding. The protective box 8 is sleeved on the outside of the first bevel gear 5 and the second bevel gear 6. The protective box 8 is a sealed structure and is filled with lubricating oil to prevent chemical materials from corroding the gears and to ensure smooth transmission.

[0031] A motor frame 21 is fixedly connected to the upper part of the connecting pipe 1 by welding. A motor 22 is fixedly connected to the inside of the motor frame 21 by bolts. A power gear 23 is fixedly connected to the power end of the motor 22 through the motor frame 21 by a key. A toothed ring 24 is fixedly connected to the outside of the rotating ring 17 by welding. The power gear 23 meshes with the toothed ring 24, and the motor 22 drives the rotating ring 17 to rotate back and forth.

[0032] Fixed plates 26 are welded to both sides of the connecting pipe 1. A push screw 27 is threaded inside the fixed plate 26. Arc grooves 25 are opened on both sides of the rotating ring 17. One end of the push screw 27 is rotatably connected to the inside of the arc groove 25. A push piece 28 is welded to the outside of the push screw 27. Positioning boxes 29 that cooperate with the push screw 27 are fixedly connected to both sides of the front pipe 30. Several sets of positioning pieces 41 are welded to one side of the rear pipe 40. Several sets of positioning grooves 42 that cooperate with the positioning pieces 41 are opened on one side of the connecting pipe 1. The positioning pieces 41 are embedded into the positioning grooves 42 through clearance fit.

[0033] A sealing groove 31 is provided on one side of the rotating ring 17, and a sealing ring 32 facing the sealing groove 31 is fixedly connected to one end of the front tube 30 by welding. A fluororubber sealing ring 33 is sleeved on the inner side of the sliding groove 15 and the inner side of the rotating ring 17 to ensure the sealing between the rotating ring 17 and the connecting tube 1 and the front tube 30.

[0034] Three sets of discharge holes 36 are opened on the inner side of the lower part of the front tube 30. A control groove 34 is opened on the outer side of the lower part of the front tube 30, which is directly opposite to the discharge holes 36. A baffle 35 is slidably connected inside the control groove 34 through clearance fit. Guide rods 37 are slidably connected to both ends of the baffle 35 through clearance fit. The two ends of the guide rods 37 are fixedly connected to the inside of the control groove 34 by welding. A second spring 38 is fixedly connected between the baffle 35 and the inner wall of the control groove 34 by spot welding. The second spring 38 is sleeved on the outer side of the guide rods 37. Under normal conditions, it pushes the baffle 35 to block the discharge holes 36.

[0035] A pull groove 39 is provided at the lower part of the baffle 35;

[0036] A filter plate 9 is fixedly connected to the inside of the connecting pipe 1 by welding. A second rotating shaft 10 is fixedly connected to one side of the fan blade 4 by welding. The other end of the second rotating shaft 10 penetrates the filter plate 9 and is fixedly connected to a fixing plate 11 by welding. A sliding cylinder 12 is slidably connected to the outside of the fixing plate 11 by clearance fit. A scraper 14 is fixedly connected to the side of the sliding cylinder 12 facing the filter plate 9 by welding.

[0037] A first spring 13 is fixedly connected between the fixed plate 11 and the sliding cylinder 12 by spot welding. The first spring 13 is sleeved on the outside of the second rotating shaft 10, pushing the scraper 14 to stick tightly to the filter plate 9.

[0038] Working principle: When using this invention: the front pipe 30 and the rear pipe 40 are fixed in the preset position of the chemical pipeline; the positioning groove 42 of the connecting pipe 1 is aligned with the positioning piece 41 of the rear pipe 40 and embedded to achieve initial positioning; the rotating push piece 28 drives the push screw 27 to advance along the thread of the fixed plate 26, and the push screw 27 pushes the rotating ring 17 through the arc groove 25, driving the mounting ring 16 to move along the sliding groove 15 towards the fixed ring 18; until the rotating ring 17 is tightly attached to the fixed ring 18, the sealing ring 32 is embedded in the sealing groove 31, and the sealing ring 33 is pressed to achieve sealing; the push screw 27 is continued to be rotated so that its other end is screwed into the positioning box 29, completing the fixing of the connecting pipe 1 and the front pipe 30.

[0039] Traffic monitoring:

[0040] Chemical raw materials flow into connecting pipe 1 from front pipe 30, and the fluid impact force drives fan blade 4 to rotate; fan blade 4 drives first bevel gear 5 to rotate through first rotating shaft 3, and first bevel gear 5 meshes with second bevel gear 6 to transmit rotational motion to speed measuring instrument 7; speed measuring instrument 7 detects the rotational speed of second bevel gear 6 and calculates the raw material delivery flow rate by combining fluid characteristics, realizing real-time and accurate monitoring; the lubricating oil in protective box 8 reduces gear wear and isolates chemical raw materials to prevent gear corrosion.

[0041] Automatic anti-clogging:

[0042] When the fan blade 4 rotates, it synchronously drives the second rotating shaft 10 and the fixed plate 11 to rotate; under the elastic force of the first spring 13, the sliding cylinder 12 always pushes the scraper 14 to stick tightly to the surface of the filter plate 9; the scraper 14 rotates synchronously with the second rotating shaft 10 to scrape off the impurities attached to the surface of the filter plate 9 and prevent the filter plate 9 from clogging; the elastic extension and retraction design of the first spring 13 can adapt to the slight unevenness of the surface of the filter plate 9 to ensure that there are no dead corners in the cleaning.

[0043] Flow regulation:

[0044] When adjusting the flow rate according to process requirements, start motor 22. The power end of motor 22 drives the power gear 23 to rotate. The power gear 23 meshes with the gear ring 24, driving the rotating ring 17 to rotate back and forth around the mounting ring 16. The overlapping area of ​​the connecting hole 19 of the rotating ring 17 and the bypass hole 20 of the fixed ring 18 changes with rotation: the larger the overlapping area, the larger the raw material flow cross section and the larger the flow rate; the smaller the overlapping area, the smaller the flow rate. After adjusting to the target flow rate, turn off motor 22, and the rotating ring 17 is positioned to achieve stable flow control.

[0045] When internal components need maintenance, rotate the push plate 28 in the opposite direction to drive the push screw 27 out of the positioning box 29; by pulling the rotating ring 17, the mounting ring 16 is driven away from the fixed ring 18 along the sliding groove 15, and the sealing ring 32 is disengaged from the sealing groove 31; pull the connecting pipe 1 away from the rear pipe 40, and the positioning plate 41 is disengaged from the positioning groove 42, so the connecting pipe 1 can be removed for maintenance; after maintenance, reverse the installation steps to reassemble.

[0046] Emergency material handling:

[0047] When a pipeline experiences blockage or leak precursors, the baffle 35 can be manually pulled via the pull groove 39. The baffle 35 slides along the guide rod 37, compressing the second spring 38, opening the discharge hole 36, and allowing the raw material to be quickly discharged from the discharge hole 36 to the preset collection device. After the fault is cleared, the baffle 35 is released, and the second spring 38 resets, pushing the baffle 35 to block the discharge hole 36, restoring normal conveying.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical raw material conveying device with flow monitoring function, comprising a connecting pipe (1), a front pipe (30) and a rear pipe (40), characterized in that: A mounting plate (2) is fixedly connected to the middle of the connecting pipe (1). A first rotating shaft (3) is rotatably connected to the middle of the mounting plate (2). A fan blade (4) is fixedly connected to one end of the first rotating shaft (3) facing the front pipe (30). A first bevel gear (5) is fixedly connected to the other end of the first rotating shaft (3). A second bevel gear (6) is meshed with the outer side of the upper part of the first bevel gear (5). A speed measuring instrument (7) is fixedly connected to the tail of the second bevel gear (6) through the connecting pipe (1). The speed measuring instrument (7) is fixedly connected to the outside of the connecting pipe (1). On the side, the connecting pipe (1) has a sliding groove (15) on the side facing the front pipe (30). A mounting ring (16) is slidably connected inside the sliding groove (15). A rotating ring (17) is fixedly connected to one side of the mounting ring (16). The rotating ring (17) is rotatably connected between the connecting pipe (1) and the front pipe (30). A fixing ring (18) is fixedly connected to the end of the front pipe (30) facing the connecting pipe (1). The mounting ring (16) and the fixing ring (18) have mutually cooperating connecting holes (19) and bypass holes (20) in the middle and around the perimeter.

2. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: A protective box (8) is fixedly connected to one side of the mounting plate (2), and the protective box (8) is sleeved on the outside of the first bevel gear (5) and the second bevel gear (6).

3. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: A motor frame (21) is fixedly connected to the upper part of the connecting pipe (1), and a motor (22) is fixedly connected inside the motor frame (21). A power gear (23) is fixedly connected to the power end of the motor (22) through the motor frame (21). A toothed ring (24) is fixedly connected to the outside of the rotating ring (17). The power gear (23) meshes with the toothed ring (24).

4. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: The connecting pipe (1) is fixedly connected to both sides with a fixing plate (26). The fixing plate (26) is threaded with a push screw (27). The rotating ring (17) has arc grooves (25) on both sides. One end of the push screw (27) is rotatably connected to the inside of the arc groove (25). The push screw (27) is fixedly connected to the outside of the push screw (27). The front pipe (30) is fixedly connected to both sides with positioning boxes (29) that cooperate with the push screw (27). The rear pipe (40) has several sets of positioning plates (41) fixedly connected to one side. The connecting pipe (1) has several sets of positioning grooves (42) that cooperate with the positioning plates (41) on one side.

5. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: A sealing groove (31) is provided on one side of the rotating ring (17), and a sealing ring (32) facing the sealing groove (31) is fixedly connected to one end of the front tube (30). A sealing ring (33) is sleeved inside the sliding groove (15) and inside one side of the rotating ring (17).

6. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: The lower inner side of the front tube (30) is provided with three sets of discharge holes (36), and the lower outer side of the front tube (30) is provided with a control groove (34) facing the discharge holes (36). A baffle (35) is slidably connected inside the control groove (34). A guide rod (37) is slidably connected inside both ends of the baffle (35). Both ends of the guide rod (37) are fixedly connected inside the control groove (34). A second spring (38) is fixedly connected between the baffle (35) and the inner wall of the control groove (34). The second spring (38) is sleeved on the outside of the guide rod (37).

7. A chemical raw material conveying device with flow monitoring function according to claim 6, characterized in that: The lower part of the baffle (35) is provided with a pull groove (39).

8. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: A filter plate (9) is fixedly connected inside the connecting pipe (1). A second rotating shaft (10) is fixedly connected to one side of the fan blade (4). A fixing plate (11) is fixedly connected to the other end of the second rotating shaft (10) through the filter plate (9). A sliding cylinder (12) is slidably connected to the outside of the fixing plate (11). A scraper (14) is fixedly connected to the side of the sliding cylinder (12) facing the filter plate (9).

9. A chemical raw material conveying device with flow monitoring function according to claim 1, characterized in that: A first spring (13) is fixedly connected between the fixed plate (11) and the sliding cylinder (12), and the first spring (13) is sleeved on the outside of the second rotating shaft (10).

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