Pure steam generator with anti-blocking structure

Abstract

The utility model discloses a pure steam generator with an anti-blocking structure, and belongs to the technical field of pure steam generators, the pure steam generator comprises a tank body and a driving assembly, the driving assembly is a servo motor, and an output shaft of the servo motor is in meshed connection with the outer surface of the upper end of a rotating shaft through a connecting belt; the other end of the rotating shaft penetrates through and is slidably connected to the upper end of the tank body, the outer surface, located in the tank body, of the rotating shaft is fixedly connected with at least two sets of connecting shafts distributed in the radial direction, the other ends of the connecting shafts are fixedly connected with first elastic contact parts or second elastic contact parts, and an output pipe is arranged on one side of the upper end of the tank body; an anti-blocking structure is arranged at the inlet end of the output pipe, the anti-blocking structure comprises a flow guide cavity, a filter screen and a connecting piece, and a heating device is fixedly connected to the lower end of the curved surface of the tank body; the anti-blocking steam generator is compact in structure, high in anti-blocking performance, convenient to maintain and suitable for industries such as medicine and food with high requirements for steam purity.

Description

Technical Field

[0001] This invention belongs to the field of pure steam generator technology, specifically relating to a pure steam generator with an anti-clogging structure. Background Technology

[0002] A steam generator, also called a steam heat source machine (commonly known as a boiler), is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to a place where fuel is burned. A boiler consists of two main parts: the boiler and the furnace.

[0003] In the pure steam production process in industries such as pharmaceuticals and food, traditional steam generators commonly suffer from scaling and clogging problems, which seriously affect steam quality and equipment stability. Existing technologies mainly use fixed filter structures, which have drawbacks such as difficult cleaning and limited anti-clogging effect. At the same time, the problems of impurity deposition and low thermal efficiency during steam flow have not been effectively solved. To address these issues, this invention proposes a novel pure steam generator that integrates dynamic anti-clogging, intelligent filtration, and efficient flow guidance. Through the synergistic effect of a rotating wall scraping mechanism and ultrasonic anti-scaling, combined with a tapered spiral flow guidance structure and modular filter components, it achieves continuous self-cleaning and high-purity steam output, effectively solving the technical problems of frequent maintenance and unstable steam quality in existing equipment.

[0004] Therefore, a pure steam generator with an anti-clogging structure is needed to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a pure steam generator with an anti-clogging structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this invention provides the following technical solution: a pure steam generator with an anti-clogging structure, comprising a tank and a drive assembly, wherein the drive assembly is a servo motor, the output shaft of the servo motor is engaged with the outer surface of the upper end of a rotating shaft via a connecting belt, the other end of the rotating shaft passes through and is slidably connected to the upper end of the tank, and at least two sets of radially distributed connecting shafts are fixedly connected to the outer surface of the inner side of the tank, the other end of each connecting shaft being fixedly connected to a first elastic contact portion or a second elastic contact portion, and an output is provided on one side of the upper end of the tank. The outlet pipe has an anti-clogging structure at its inlet end, which includes: a flow guide cavity coaxially arranged with the outlet pipe, the inner wall of which has a spiral groove with a groove depth of 0.5-1mm and a groove width of 2-3mm; a conical filter screen located at the inlet of the flow guide cavity and a connector connecting the flow guide cavity and the conical filter screen; a heating device is fixedly connected to the lower end of the curved surface of the tank, and the lower end of the tank is semi-circular, and a conical slag collection hopper is provided at the bottom of the tank, with a slag discharge structure connected to the bottom of the slag collection hopper, which is a slag discharge pipe with an electric valve.

[0007] It should be noted in the solution that gears are provided on the outer surfaces of the connection between the output shaft and the rotating shaft of the servo motor and the connecting belt, and gears are provided on the inner surface of the connecting belt. Limiting seals are fixedly connected to the outer surfaces on both sides of the connection between the rotating shaft and the upper end of the tank or the outer surfaces on both sides of the connection between the rotating shaft and the connecting belt.

[0008] It is worth noting that the first elastic contact part or the second elastic contact part is an arc-shaped scraper made of polytetrafluoroethylene, and its curvature is adapted to the curvature of the inner wall of the tank or the bottom of the tank.

[0009] Furthermore, it should be noted that the conical filter screen comprises a three-layer composite structure, consisting of a 40-mesh stainless steel mesh, a honeycomb ceramic layer, and an activated carbon adsorption layer from the inside out. An extension plate is provided at the upper edge of the conical filter screen.

[0010] In a preferred embodiment, the flow guiding cavity is provided with a spiral guide vane. The pitch of the spiral guide vane gradually decreases from the inlet end to the outlet end, forming a tapered flow channel. The pitch change of the spiral guide vane satisfies the formula: P=Po×(1-0.03n), where Po is the initial pitch at the inlet end and n is the number of spiral turns. The surface of the spiral guide vane is provided with a nano-ceramic coating with a surface roughness Ra≤0.1μm. The initial pitch of the spiral guide vane is the same as the initial pitch of the spiral provided on the inner wall of the flow guiding cavity.

[0011] In a preferred embodiment, the lower end of the outer curved surface of the flow guide cavity is provided with an external thread, and a limiting plate is fixedly connected to the upper end of the external thread on the outer curved surface of the flow guide cavity. The upper end of the inner curved surface of the connector is provided with an internal thread, which is threadedly connected to the external thread. A rubber sealing ring is provided at the connection. The lower end of the inner curved surface of the connector is fixedly connected with a protruding guide or slidably connected with a fixing ring. Both the protruding guide and the fixing ring are provided with several connecting holes and are connected to each other by bolts. The connecting surfaces of the protruding guide and the fixing ring are slidably connected to an extension plate provided at the upper edge of the conical filter screen.

[0012] In a preferred embodiment, an ultrasonic generator is provided on the outer surface of the tank, and the transducers of the ultrasonic generator are evenly distributed on the outer peripheral wall of the tank.

[0013] In a preferred embodiment, the heating device is a heating tube, the other end of which extends into the interior of the tank and is spiral-shaped.

[0014] Compared with the prior art, the pure steam generator with anti-clogging structure provided by this invention has at least the following beneficial effects:

[0015] (1) The rotating scraping mechanism (elastic contact part 303 / 304) driven by the servo motor continuously cleans the inner wall of the tank. Combined with ultrasonic anti-scaling and conical slag collection hopper, it effectively prevents scaling and clogging. The gradually shrinking spiral guide vanes in the guide cavity (the pitch changes dynamically according to the formula) optimize the steam flow path, reduce eddies and impurity deposition, and the nano-ceramic coating further reduces resistance. The three-layer composite structure of the conical filter screen (stainless steel mesh + honeycomb ceramic + activated carbon) filters impurities in stages, and the threaded sealing design of the extension plate and detachable connector facilitates maintenance.

[0016] (2) The dynamic sealing of the rotating shaft is ensured by the gear meshing transmission belt and the limiting seal ring to prevent steam leakage; the conical slag collection hopper and the electric valve slag discharge pipe realize the automatic centralized discharge of impurities, reducing the frequency of manual cleaning; the spiral heating tube increases the heat exchange area, and the ultrasonic anti-scaling technology improves thermal efficiency and reduces energy consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tank structure of this novel invention;

[0018] Figure 2 This is a schematic diagram of the front structure of this novel invention;

[0019] Figure 3 This is a schematic diagram of the anti-clogging structure of this novel invention.

[0020] In the diagram: 1. Tank body; 101. Tank bottom; 2. Drive assembly; 3. Rotating shaft; 301. Limiting seal ring; 302. Connecting shaft; 303. First elastic contact part; 304. Second elastic contact part; 4. Output pipe; 5. Anti-clogging structure; 501. Flow guide cavity; 5011. Spiral flow guide plate; 5012. Limiting plate; 5013. External thread; 502. Rubber sealing ring; 503. Connecting piece; 5031. Internal thread; 5032. Protruding guide; 5033. Fixing ring; 5034. Connecting hole; 5035. Bolt; 504. Filter screen; 5041. Extension plate; 6. Heating device; 601. Heating tube; 7. Ultrasonic generator; 8. Slag collection hopper; 9. Slag discharge structure. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments.

[0022] Please see Figure 1-3 This invention provides a pure steam generator with an anti-clogging structure, comprising: a tank body 1 and a drive assembly 2. The drive assembly 2 is a servo motor. The output shaft of the servo motor is engaged with the outer surface of the upper end of a rotating shaft 3 via a connecting belt 201. The other end of the rotating shaft 3 passes through and is slidably connected to the upper end of the tank body 1. At least two sets of radially distributed connecting shafts 302 are fixedly connected to the inner outer surface of the rotating shaft 3 within the tank body 1. The other end of each connecting shaft 302 is fixedly connected to a first elastic contact portion 303 or a second elastic contact portion 304. An output pipe 4 is provided on one side of the upper end of the tank body 1. The inlet of the output pipe 4... An anti-clogging structure 5 is provided at the outlet end. The anti-clogging structure 5 includes: a guide cavity 501 coaxially arranged with the output pipe 4, the inner wall of the guide cavity 501 is provided with a spiral groove with a groove depth of 0.5-1mm and a groove width of 2-3mm; a conical filter screen 504 located at the inlet of the guide cavity 501 and a connector 503 connecting the guide cavity 501 and the conical filter screen 504; a heating device 6 is fixedly connected to the lower end of the curved surface of the tank body 1, and the lower end of the tank body 1 is semi-circular, and a conical slag collection hopper 8 is provided at the bottom of the tank body 1. A slag discharge structure 9 is connected to the bottom of the slag collection hopper 8, and the slag discharge structure 9 is a slag discharge pipe with an electric valve.

[0023] Further as Figure 2 As shown, it is worth noting that gears are provided on the outer surfaces of the connection points between the output shaft and the rotating shaft 3 of the servo motor and the connecting belt 201, and gears are also provided on the inner surface of the connecting belt 201. Furthermore, limit sealing rings 301 are fixedly connected to the outer surfaces on both sides of the connection point between the rotating shaft 3 and the upper end of the tank 1 or to the outer surfaces on both sides of the connection point with the connecting belt 201. By adopting the gear meshing design of the connecting belt 201, the transmission accuracy is high and slippage is not easy, ensuring the stable rotation of the rotating shaft. The limit sealing rings 301 provide double sealing, effectively preventing steam leakage and improving equipment safety.

[0024] Further as Figure 2As shown, it is worth noting that the first elastic contact part 303 or the second elastic contact part 304 is an arc-shaped scraper made of polytetrafluoroethylene (PTFE). The curvature of the scraper is adapted to the curvature of the inner wall of the tank body 1 or the tank bottom 101. Due to the wear resistance and high temperature resistance of PTFE, the arc-shaped scraper is precisely matched with the curvature of the inner wall of the tank body 1, which makes the scale removal more thorough. It reduces direct metal contact, avoids scratches on the inner wall of the tank body 1, and extends the service life of the equipment.

[0025] Further as Figure 3 As shown, it is worth noting that the conical filter 504 has a three-layer composite structure, consisting of a 40-mesh stainless steel mesh, a honeycomb ceramic layer, and an activated carbon adsorption layer from the inside out. The upper edge of the conical filter 504 is provided with an extension plate 5041. The 40-mesh stainless steel mesh intercepts large particulate impurities, the honeycomb ceramic layer adsorbs small suspended matter, and the activated carbon layer removes organic matter. This staged filtration improves the purity of the steam. The extension plate 5041 facilitates quick disassembly and assembly of the filter 504, simplifying the maintenance process.

[0026] This solution includes the following workflow:

[0027] Start-up phase: The servo motor of the drive component 2 drives the rotating shaft 3 to rotate through the gear meshing connecting belt 201, which causes the first elastic contact part 303 and the second elastic contact part 304 (polytetrafluoroethylene material) at the end of the connecting shaft 302 to slide along the inner wall of the tank 1 and the bottom of the tank 101 to achieve pre-cleaning.

[0028] Heating process: The spiral heating tube 601 heats the water in the tank 1 evenly, and the transducer of the ultrasonic generator 7 works synchronously. The high-frequency vibration inhibits the formation of scale, and the generated steam flows upward.

[0029] Steam purification: Steam first passes through the three-layer conical filter 504 (40-mesh stainless steel mesh → honeycomb ceramic layer → activated carbon adsorption layer) of the anti-clogging structure 5, which intercepts impurities of different particle sizes in sequence; then it enters the flow guide cavity 501, where it flows faster in the flow channel formed by the gradually shrinking spiral guide plate 5011 (the pitch changes according to the law P=Po×(1-0.03n)), and the nano-ceramic coating reduces resistance.

[0030] Dynamic anti-clogging: The rotating first elastic contact part 303 and the second elastic contact part 304 continuously remove the deposits on the tank wall, and the detached impurities settle into the conical slag collection hopper 8. The electric valve of the slag discharge structure 9 automatically discharges slag periodically. The conical filter screen 504 can be quickly disassembled and maintained through the external thread 5013 and internal thread 5031 of the connector 503.

[0031] Steam output: The purified pure steam is discharged from the output pipe 4 after passing through the anti-clogging structure 5. The whole process realizes a closed-loop anti-clogging of "dynamic cleaning - graded filtration - intelligent slag discharge".

[0032] Based on the above working process, it can be seen that: by adopting the gear meshing connection belt 201 design, the transmission accuracy is high and it is not easy to slip, ensuring the stable rotation of the rotating shaft; the limit sealing ring 301 double seal effectively prevents steam leakage and improves equipment safety; the wear-resistant and high-temperature resistant polytetrafluoroethylene material, and the arc-shaped scraper precisely match the curvature of the inner wall of the tank 1, scraping away scale more thoroughly; reducing direct metal contact, avoiding scratches on the inner wall of the tank 1, and extending the service life of the equipment; the 40-mesh stainless steel mesh intercepts large particulate impurities, the honeycomb ceramic layer adsorbs small suspended matter, and the activated carbon layer removes organic matter, and the graded filtration improves the purity of steam; the extension plate 5041 facilitates the quick installation and removal of the filter screen 504, simplifying the maintenance process.

[0033] Further as Figure 3 As shown, it is worth noting that the spiral guide vane 5011 provided in the flow guiding cavity 501 has a gradually decreasing pitch from the inlet end to the outlet end, forming a tapered flow channel. The pitch change of the spiral guide vane 5011 satisfies the formula: P=Po×(1-0.03n), where Po is the initial pitch at the inlet end and n is the number of spiral turns. The surface of the spiral guide vane 5011 is provided with a nano-ceramic coating with a surface roughness Ra≤0.1μm. The initial pitch of the spiral guide vane 5011 is the same as the initial pitch of the spiral provided on the inner wall of the flow guiding cavity 501. By dynamically reducing the pitch according to the formula P=Po×(1-0.03n), a tapered flow channel is formed, which accelerates the steam flow and reduces eddies. The nano-ceramic coating (Ra≤0.1μm) reduces the flow resistance and inhibits the adhesion of impurities.

[0034] Further as Figure 3 As shown, it is worth noting that the lower end of the outer curved surface of the guide cavity 501 is provided with an external thread 5013, and a limit plate 5012 is fixedly connected to the upper end of the external thread 5013 on the outer curved surface of the guide cavity 501. The upper end of the inner curved surface of the connector 503 is provided with an internal thread 5031, which meshes with the external thread 5013 for threaded connection. A rubber sealing ring 502 is provided at the connection point. Furthermore, a raised guide 5032 is fixedly connected to the lower end of the inner curved surface of the connector 503, or a retaining ring 5033 is slidably connected to it. Both 5032 and the fixing ring 5033 are provided with several connecting holes 5034 and are connected to each other by bolts 5035. The connecting surfaces of the protruding guide 5032 and the fixing ring 5033 are slidably connected to the extension plate 5041 provided on the upper edge of the conical filter screen 504. The external thread 5013 and the internal thread 5031 are engaged to achieve quick disassembly and assembly. The rubber sealing ring 502 ensures airtightness. The protruding guide 5032 and the fixing ring 5033 are connected by bolts, which are accurate in positioning and prevent loosening, making them suitable for high-frequency maintenance scenarios.

[0035] Further as Figure 2As shown, it is worth noting that an ultrasonic generator 7 is provided on the outer surface of the tank 1. The transducers of the ultrasonic generator 7 are evenly distributed on the outer peripheral wall of the tank 1. Through the even distribution of the transducers, high-frequency vibration breaks down scale crystals, reducing scale buildup on the inner wall of the tank from the source. It works in conjunction with the rotating wall scraping mechanism to improve the anti-clogging effect.

[0036] Further as Figure 1 As shown, it is worth noting that the heating device 6 uses a heating tube 601 for heating. The other end of the heating tube 601 extends into the tank 1 and is spiral-shaped. The conical structure facilitates the concentrated settling of impurities. The electric valve enables timed / quantitative automatic slag discharge, reducing manual intervention, avoiding downtime for cleaning, and ensuring continuous production needs.

[0037] In summary: By dynamically reducing the pitch according to the formula P=Po×(1-0.03n), a gradually narrowing flow channel is formed, accelerating steam flow and reducing eddies; the nano-ceramic coating (Ra≤0.1μm) reduces flow resistance and inhibits impurity adhesion; quick assembly and disassembly are achieved through the cooperation of the external thread 5013 and the internal thread 5031; the rubber sealing ring 502 ensures airtightness; the raised guide 5032 and the fixing ring 5033 are connected by bolts, ensuring precise positioning and preventing loosening, suitable for high-frequency maintenance scenarios; the transducer is evenly distributed, and high-frequency vibration breaks down scale crystals, reducing scale buildup on the inner wall of the tank from the source; working in conjunction with the rotating scraper mechanism, the anti-clogging effect is improved; the conical structure facilitates the concentrated settling of impurities; the electric valve enables timed / quantitative automatic slag discharge, reducing manual intervention; and downtime cleaning is avoided, ensuring continuous production needs.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A pure steam generator with an anti-clogging structure, comprising a tank (1) and a drive assembly (2), characterized in that: The drive assembly (2) is a servo motor. The output shaft of the servo motor is engaged with the outer surface of the upper end of the rotating shaft (3) via a connecting belt (201). The other end of the rotating shaft (3) passes through and is slidably connected to the upper end of the tank (1). At least two sets of radially distributed connecting shafts (302) are fixedly connected to the inner outer surface of the tank (1). The other end of each connecting shaft (302) is fixedly connected to a first elastic contact part (303) or a second elastic contact part (304). An output pipe (4) is provided on one side of the upper end of the tank (1). An anti-blocking structure (5) is provided at the inlet end of the output pipe (4). Includes: a guide cavity (501) coaxially arranged with the output pipe (4), the inner wall of the guide cavity (501) is provided with a spiral groove, the groove depth is 0.5-1mm and the groove width is 2-3mm; a conical filter screen (504) located at the inlet of the guide cavity (501) and a connector (503) connecting the guide cavity (501) and the conical filter screen (504); a heating device (6) is fixedly connected to the lower end of the curved surface of the tank body (1), and the lower end of the tank body (1) is semi-circular, and a conical slag collection hopper (8) is provided at the bottom of the tank body (1), and a slag discharge structure (9) is connected to the bottom of the slag collection hopper (8), and the slag discharge structure (9) is a slag discharge pipe with an electric valve.

2. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The output shaft and rotating shaft (3) of the servo motor are both provided with gears on the outer surface of the connection with the connecting belt (201), and the inner surface of the connecting belt (201) is provided with gears. The outer surfaces of both sides of the connection between the rotating shaft (3) and the upper end of the tank (1) or the outer surfaces of both sides of the connection with the connecting belt (201) are fixedly connected with limit sealing rings (301).

3. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The first elastic contact part (303) or the second elastic contact part (304) is an arc-shaped scraper made of polytetrafluoroethylene, and its curvature is adapted to the curvature of the inner wall of the tank body (1) or the bottom of the tank (101).

4. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The cone-shaped filter (504) comprises a three-layer composite structure, consisting of a 40-mesh stainless steel mesh, a honeycomb ceramic layer, and an activated carbon adsorption layer from the inside out. An extension plate (5041) is provided at the upper edge of the cone-shaped filter (504).

5. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The flow guiding cavity (501) is provided with a spiral flow guiding plate (5011). The pitch of the spiral flow guiding plate (5011) gradually decreases from the inlet end to the outlet end, forming a gradually narrowing flow channel. The pitch change of the spiral flow guiding plate (5011) satisfies the formula: P=Po×(1-0.03n), where Po is the initial pitch at the inlet end and n is the number of spiral turns. The surface of the spiral flow guiding plate (5011) is provided with a nano-ceramic coating with a surface roughness Ra≤0.1μm. The initial pitch of the spiral flow guiding plate (5011) is the same as the initial pitch of the spiral provided on the inner wall of the flow guiding cavity (501).

6. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The lower end of the outer curved surface of the flow guide cavity (501) is provided with an external thread (5013), and the upper end of the outer curved surface of the flow guide cavity (501) is fixedly connected to a limiting plate (5012) at the external thread (5013). The upper end of the inner curved surface of the connector (503) is provided with an internal thread (5031). The internal thread (5031) and the external thread (5013) are threadedly connected, and a rubber sealing ring (502) is provided at the connection. 3) The lower end of the inner curved surface is fixedly connected to a protruding guide (5032) or slidably connected to a fixing ring (5033). The protruding guide (5032) and the fixing ring (5033) are both provided with several connecting holes (5034) and are connected to each other by bolts (5035). The connecting surfaces of the protruding guide (5032) and the fixing ring (5033) are slidably connected to the extension plate (5041) provided on the upper edge of the conical filter screen (504).

7. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: An ultrasonic generator (7) is provided on the outer surface of the tank (1), and the transducers of the ultrasonic generator (7) are evenly distributed on the outer peripheral wall of the tank (1).

8. The pure steam generator with anti-blocking structure according to claim 1, characterized in that: The heating device (6) is heated by a heating tube (601), the other end of which extends into the tank (1) in a spiral shape.

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