A metering pump for tungstic acid processing and transportation

Abstract

The present invention discloses a metering pump for tungstic acid processing and transportation, belonging to the technical field of metering pumps. It comprises a diaphragm metering pump, wherein a negative pressure suction cavity is fixedly mounted on the output end of the diaphragm metering pump, the outer side of the negative pressure suction cavity is in an open state, and a cooperative cleaning cavity for cleaning the interior of the negative pressure suction cavity is fixedly mounted on the open end, a conveying module facing the center of the negative pressure suction cavity is mounted on the output end of a first electric telescopic rod, and a linkage drive module is configured on the conveying module. Through the integrated design of the cooperative cleaning cavity and the linkage drive module, the cavity outside the diaphragm and the inner cavity of the ball valve are synchronously cleaned, solving the problems of sealing failure and flow deviation caused by the accumulation of tungstic acid crystals. Different from the limitations of traditional step-by-step cleaning, the cleaning process of the diaphragm and the ball valve is integrated into a single operation, significantly improving the cleaning efficiency and coverage.

Description

Technical Field

[0001] The present invention relates to the technical field of metering pumps, and more particularly to a metering pump used for processing and transporting tungstic acid. Background Art

[0002] As a key equipment in chemical production, the metering pump for tungstic acid processing and transportation is mainly used for the precise metering and pipeline transportation of high-purity tungstic acid solution. In the existing technology, this equipment usually adopts a plunger or diaphragm structure, and the motor drives the worm gear mechanism to drive the reciprocating motion of the plunger, and the alternating opening and closing of the suction valve and discharge valve are coordinated to achieve quantitative transportation.

[0003] However, during long-term operation, tungstic acid solution tends to precipitate crystals in the cavity outside the metering pump diaphragm, especially in the retention area formed at the junction of the valve cavity and the ball valve, which accelerates the attachment of crystals. What is more serious is that the existing ball valve structure has a blind spot for dynamic sealing surface cleaning. When the plunger returns to form a negative pressure, part of the tungstic acid solution penetrates into the cavity between the diaphragm and the cylinder body, forming microcrystals under pressure fluctuations, and eventually accumulating on the contact surface between the ball valve and the valve seat, causing sealing failure and high flow deviation.

[0004] Further in-depth analysis reveals that the core contradiction that makes it difficult for existing cleaning technologies to fundamentally solve this problem lies in the fact that the traditional scraper mechanism can only deal with crystallization on the inner wall of the cylinder body, that is, crystallization on the outside of the metering pump diaphragm, while the complex curved surface structure of the ball valve cavity prevents the mechanical cleaning device from effectively reaching it. During the dynamic conveying of tungstic acid, there is a pressure difference between the diaphragm cavity and the ball valve cavity, which causes the crystals to re-accumulate within 48 hours after shutdown and cleaning. In this environment, a collaborative mechanism is required to achieve synchronous cleaning of the cavity on the outer surface of the diaphragm and the inner cavity of the ball valve. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a metering pump for tungstic acid processing and transportation, aiming to solve the above technical problems.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A metering pump for tungstic acid processing and transportation, comprising a diaphragm metering pump, wherein a negative pressure suction cavity is fixedly mounted on the output end of the diaphragm metering pump, the outer side of the negative pressure suction cavity being open, and a cooperative cleaning cavity for cleaning the interior of the negative pressure suction cavity being fixedly mounted on the open end, two sets of first electric telescopic rods being fixedly mounted inside the cooperative cleaning cavity, a conveying module facing the center of the negative pressure suction cavity being mounted on the output end of the first electric telescopic rod, and a linkage drive module being configured on the conveying module;

[0008] The linkage drive module includes a diaphragm cleaning brush for cleaning the diaphragm of the negative pressure suction cavity, and also includes a cleaning module for cleaning the suction valve and the discharge valve on the negative pressure suction cavity;

[0009] The cleaning module includes four rounded curved feeler rods that can fit on the outer spherical surface of the ball valve and are arranged in a circular pattern. A second delivery cavity is opened inside each rounded curved feeler rod, and a number of movable cleaning blocks are sequentially arranged through the second delivery cavity. While the delivery module delivers cleaning reagent to the second delivery cavity for spray cleaning, it drives the movable cleaning blocks to clean the outer spherical surface of the ball valve.

[0010] As a further solution of the present invention: the conveying module includes a square frame fixedly mounted on the output end of the first electric telescopic rod, and conveying cavity blocks are fixedly mounted at the upper and lower sides of the square frame, and the conveying cavity blocks are provided with sealed circular ring openings, and the interior of the conveying cavity blocks is provided with a first conveying cavity at a position outside the sealed circular ring openings, and a plurality of first openings communicating with the first conveying cavity are circumferentially opened on the inner circular surface of the sealed circular ring openings, and the interior of the first conveying cavity is fixedly provided with an external conduit passing through the conveying cavity block, and the outer side of the external conduit on one side of the square frame is connected to the storage tank, and the outer side of the external conduit on one side is connected to the second electric pump.

[0011] As a further solution of the present invention: the linkage drive module includes a shell fixedly installed at the middle position of the inner side of the square frame, and a first bevel gear sleeve rod is movably installed at the middle position inside the shell, facing the upper and lower conveying cavity blocks. The upper and lower sides of the shell are fixedly installed with a first protruding sleeve that is inserted into the sealing ring sleeve. The inside of the first protruding sleeve is fixedly installed with an embedded sealing sleeve, and the embedded sealing sleeve is flush with the first conveying cavity on the sealing ring sleeve. A number of second openings that are closely corresponding to the first openings are opened in a circular manner on the side wall of the embedded sealing sleeve. Extension rods are fixedly installed on the upper and lower sides of the first bevel gear sleeve rod, and the extension rods are fixedly installed with a first inner nested cylinder that is movably sleeved in the embedded sealing sleeve.

[0012] As a further solution of the present invention: the linkage drive module also includes a servo motor fixedly mounted on the outer wall of the square casing, and a second bevel gear sleeve rod is fixedly mounted on the output end of the servo motor, the second bevel gear sleeve rod penetrates into the interior of the casing and engages with the side of the first bevel gear sleeve rod, and a third bevel gear sleeve rod is movably mounted on the side of the casing side wall facing the negative pressure suction cavity, and the third bevel gear sleeve rod also engages with the side of the first bevel gear sleeve rod, and a diaphragm cleaning brush is fixedly mounted on the outside of the third bevel gear sleeve rod, the size of the diaphragm cleaning brush is the same as the size of the opening end of the negative pressure suction cavity, and a sealing ring is fixedly mounted on the side of the diaphragm cleaning brush.

[0013] As a further solution of the present invention: the interiors of the extension rod, the first bevel gear sleeve, and the first inner nested tube are all cavity structures, and the cavities inside the extension rod, the first bevel gear sleeve, and the first inner nested tube are all connected, and the outer annular surface of the first inner nested tube is provided with a plurality of through openings that closely correspond to the second through opening, and the outer side of the first protruding sleeve is fixedly installed with a plurality of conical cavities, and the outer side of the first inner nested tube is fixedly installed with a first electric pump, and a cavity tube is fixedly installed on the outer output end of the first electric pump, and the cavity tubes are connected with the cavity inside the first inner nested tube through the first electric pump.

[0014] As a further solution of the present invention: a plurality of fan heads located in each conical cavity are fixedly installed on the outer surface of the cavity tube, the storage tank is wrapped as a whole on the outside of the conical cavity, and a magnetic coating is provided on the side of each fan blade of the fan head on the same side of the storage tank, and a magnetic circular sleeve is installed on the outside of the conical cavity of the fan head with the magnetic coating through the magnetic effect, and a plurality of stirring rods are fixedly installed in a circular manner on the outer surface of the magnetic circular sleeve.

[0015] As a further solution of the present invention: a second extending sleeve is fixedly installed at the outer end position of the first extending sleeve, an extending sleeve is inserted into the outer surface of the second extending sleeve, a movable sleeve plate is movably installed on the outer surface of the extending sleeve, and a second electric telescopic rod is fixedly installed between the movable sleeve plates on the upper and lower sides of the sleeve shell, a maintenance opening is opened on the side wall of the collaborative cleaning cavity, and an outer flip cover plate is press-installed on the maintenance opening.

[0016] As a further solution of the present invention: the cleaning module includes four rounded curved touch rods fixedly installed on the side end of the extended sleeve, which can fit on the outer spherical surface of the ball valve and are arranged in a circle. The inner arc edge of each rounded curved touch rod is sequentially opened with a number of circular sleeves that are connected to the second conveying cavity. The circular sleeves are fixedly installed with a second inner nested cylinder, and the interior of the second inner nested cylinder is fixedly installed with a card slot, and the third inner nested cylinder is movably installed through the card slot.

[0017] As a further solution of the present invention: the end of the third inner nested cylinder extending out of the second inner nested cylinder is provided with a spray port communicated with the second conveying cavity, and a plurality of cleaning blocks are installed in an insert-type manner at the outer edge of the spray port. The end of the third inner nested cylinder away from the cleaning block extends into the interior of the second conveying cavity through the second inner nested cylinder, and a plurality of stirring blades are fixedly installed in a circular manner on the extending end.

[0018] As a further solution of the present invention: the side end of the cavity tube is in a closed state, and the closed end surface is fixedly connected to the extended sleeve at the same side end through a support rod, and the closed end surface is fixedly installed with four subdivision conduits that are connected to the cavity inside the cavity tube. The subdivision conduits are generally of a hose structure, and the extended ends are respectively connected to the second conveying cavity of the rounded curved touch rod on each side through the extended sleeve.

[0019] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects:

[0020] (1) This solution realizes the synchronous cleaning of the outer cavity of the diaphragm and the inner cavity of the ball valve through the integrated design of the collaborative cleaning cavity and the linkage drive module, solving the problems of sealing failure and flow deviation caused by the accumulation of tungstic acid crystals. In traditional technology, the scraper mechanism can only clean the outer surface of the diaphragm, and the complex curved surface of the dynamic sealing surface of the ball valve causes a blind spot in the mechanical cleaning. The electric telescopic rod drives the conveying module and the linkage drive mechanism to work together, so that the diaphragm cleaning brush and the ball valve cleaning module are synchronously extended into the working area. The bevel gear set is used to realize the 360° circular movement of the cleaning component. While the spraying reagent dissolves the crystals, the mechanical brush body physically scrapes the diaphragm surface. Different from the limitations of traditional step-by-step cleaning, the cleaning process of the diaphragm and the ball valve is integrated into a single operation, which significantly improves the cleaning efficiency and coverage.

[0021] (2) Through the rounded curved touch rod structure, the flexible touch rod and its built-in second conveying cavity are used, combined with the movable cleaning block and stirring fan, to achieve dynamic adaptive cleaning of the curved surface of the ball valve. Compared with the traditional fixed nozzle, the soft rubber end of the curved touch rod can fit tightly to the spherical surface and rotate and spray under the drive of the servo motor. At the same time, the high turbulent flushing force generated by the gas-liquid two-phase flow enhances the stripping effect of the crystals. The working process is divided into four stages: pre-purge, reagent spraying, dynamic flushing and drying. A step-by-step cleaning strategy is adopted to improve the cleaning effect.

[0022] (3) The combination of magnetic stirring mechanism and dynamic sealing design ensures the stability and efficiency of the cleaning process. A stirring rod driven by a magnetic coating is set inside the storage tank to mix the solution simultaneously during the reagent delivery process, effectively preventing the stratification of the citric acid solution and local uneven concentration. The cleaning module adopts a retractable sleeve structure, which can achieve rapid switching of the working state through electric control. The maintenance opening and the external flip cover design facilitate equipment maintenance and consumables replacement. Compared with the traditional manual disassembly and cleaning method, the self-cleaning system shortens the single maintenance time and greatly improves the operation and maintenance efficiency and service life of the metering pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic structural diagram of a semi-sectional view of the collaborative cleaning cavity of the present invention;

[0026] Figure 3 This is a schematic structural diagram of the diaphragm cleaning brush of the present invention in a disassembled state;

[0027] Figure 4 This is a schematic structural diagram of a semi-sectioned state of a conveying module of the present invention;

[0028] Figure 5 This is a schematic structural diagram of a semi-sectioned state of a linkage drive module of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of the linkage drive module of the present invention;

[0030] Figure 7 This is a structural schematic diagram of the storage tank of the present invention in a disassembled state;

[0031] Figure 8 This is a schematic diagram of the overall structure of the cleaning module of the present invention;

[0032] Figure 9 This is a structural diagram of the cleaning module of the present invention in a disassembled state.

[0033] Reference numerals

[0034] 1. Diaphragm metering pump; 2. Negative pressure suction cavity; 3. Collaborative cavity cleaning; 4. First electric telescopic rod;

[0035] 5. Delivery module; 51. Square casing; 52. Delivery cavity block; 53. Sealing ring sleeve; 54. First delivery cavity; 55. First port; 56. External conduit;

[0036] 6. Servo motor;

[0037] 7. Linkage drive module; 71. Housing; 72. First bevel gear sleeve; 73. Second bevel gear sleeve; 74. Third bevel gear sleeve; 75. First extended sleeve; 76. Inline sealing sleeve; 77. Second opening; 78. Extension rod; 79. First inner nested sleeve; 710. First electric pump; 711. Cavity tube; 712. Conical cavity; 713. Fan head; 714. Subdividing duct; 715. Second extended sleeve;

[0038] 8. Extended casing;

[0039] 9. Cleaning module; 91. Rounded curved contact rod; 92. Second conveying cavity; 93. Round sleeve; 94. Second inner nested cylinder; 95. Card slot; 96. Third inner nested cylinder; 97. Stirring fan; 98. Cleaning block;

[0040] 10. Movable sleeve; 11. Second electric telescopic rod; 12. Second electric pump; 13. Storage tank; 14. Magnetic round sleeve; 15. Stirring rod; 16. Diaphragm cleaning brush; 17. Outer cover.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0042] The following describes in detail a metering pump for tungstic acid processing and transportation provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement certain known technologies. Furthermore, the accompanying drawings are intended only to more specifically describe the embodiments and are not intended to limit the present invention.

[0043] like Figures 1 to 9 As shown, an embodiment of the present invention provides a metering pump for tungstic acid processing and transportation, including a diaphragm metering pump 1, a negative pressure suction cavity 2 is fixedly installed on the output end of the diaphragm metering pump 1, the outer side of the negative pressure suction cavity 2 is open, and a cooperative cleaning cavity 3 for cleaning the interior of the negative pressure suction cavity 2 is fixedly installed on the open end, two sets of first electric telescopic rods 4 are fixedly installed inside the cooperative cleaning cavity 3, and a conveying module 5 facing the center of the negative pressure suction cavity 2 is installed on the output end of the first electric telescopic rod 4, and a linkage drive module 7 is configured on the conveying module 5;

[0044] The linkage drive module 7 includes a diaphragm cleaning brush 16 for cleaning the diaphragm of the negative pressure suction cavity 2, and also includes a cleaning module 9 for cleaning the suction valve and the discharge valve on the negative pressure suction cavity 2;

[0045] Among them, the cleaning module 9 includes four rounded curved feeler rods 91 that can be attached to the outer spherical surface of the ball valve and are arranged in a circular pattern. A second delivery cavity 92 is opened inside each rounded curved feeler rod 91, and a number of movable cleaning blocks 98 are arranged in sequence through the second delivery cavity 92. When the cleaning reagent is delivered to the second delivery cavity 92 for spray cleaning through the delivery module 5, the movable cleaning blocks 98 are driven to clean the outer spherical surface of the ball valve.

[0046] In order to solve the problems of crystal accumulation, sealing failure and flow deviation caused by the inability to clean the outer cavity of the diaphragm and the inner cavity of the ball valve synchronously in the operation of the tungstic acid metering pump in the prior art, the above technical solution is now adopted to solve the problem. The above technical solution mainly consists of a diaphragm metering pump 1, a negative pressure suction cavity 2, a cooperative cleaning cavity 3, a first electric telescopic rod 4, a conveying module 5, a linkage drive module 7, a cleaning module 9 and a diaphragm cleaning brush 16. The diaphragm metering pump 1 adopts a diaphragm structure in the prior art, and the worm gear mechanism is driven by the internal motor to drive the linkage column The reciprocating motion of the plunger cooperates with the alternate opening and closing of the suction valve and the discharge valve at both ends of the negative pressure suction cavity 2 to achieve quantitative delivery. The configured negative pressure suction cavity 2 is a disc-shaped cavity structure in the prior art. A diaphragm is configured on the side of the cavity and the end of the reciprocating motion of the plunger on the diaphragm metering pump 1. During the working process, the reciprocating expansion and contraction of the diaphragm is utilized to generate negative pressure inside the negative pressure suction cavity 2. The suction valve and the discharge valve at both ends of the negative pressure suction cavity 2 are both one-way ball valve structures. The reciprocating negative pressure can make the suction valve and the discharge valve alternately open and close to deliver high-purity tungstic acid solution.

[0047] The configured collaborative cleaning cavity 3 is arranged as a whole on the outside of the negative pressure suction cavity 2, and the first electric telescopic rod 4 configured inside is a telescopic rod structure that can be electrically servo-controlled in the prior art. Through its telescopic function, the conveying module 5 and the linkage drive module 7 located at the inner center of the collaborative cleaning cavity 3 are pushed into the negative pressure suction cavity 2 next door. When not pushed in, the diaphragm cleaning brush 16 mainly serves to clean the diaphragm on the side of the negative pressure suction cavity 2, and also serves to close the collaborative cleaning cavity 3, covering the collaborative cleaning cavity 3 and the negative pressure suction cavity 2. The configured conveying module 5 is a square frame structure as a whole. Through the linkage work of the linkage drive module 7 of the axis, the diaphragm cleaning brush 16 for cleaning the diaphragm of the negative pressure suction cavity 2 and the cleaning module 9 for cleaning the suction valve and the discharge valve are synchronously linked to work together. Among them, the cleaning module 9 used for cleaning the suction valve and the discharge valve includes four rounded curved feeler rods 91 that can be fitted on the outer spherical surface of the ball valve and are arranged in a circle. The outer end of each rounded curved feeler rod 91 is a soft rubber structure, which is convenient and easier to be inserted into the outer spherical surface of the ball valve, and a second delivery cavity 92 is opened inside. A number of movable cleaning blocks 98 are arranged in sequence through the second delivery cavity 92. During operation, the cleaning reagent can be delivered to the second delivery cavity 92 for spray cleaning through the delivery module 5, and in the process of delivering the cleaning reagent, the delivered cleaning reagent will also drive the movable cleaning block 98 to clean the outer spherical surface of the ball valve at the same time, so as to solve the problems of crystal accumulation, sealing failure and flow deviation caused by the inability to synchronously clean the outer cavity of the diaphragm and the inner cavity of the ball valve in the existing tungstic acid metering pump during operation.

[0048] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the conveying module 5 includes a square frame 51 fixedly mounted on the output end of the first electric telescopic rod 4, and conveying cavity blocks 52 are fixedly mounted at the upper and lower sides of the square frame 51, and the conveying cavity blocks 52 are each provided with a sealing ring opening 53, and a first conveying cavity 54 is provided at a position outside the sealing ring opening 53 inside the conveying cavity block 52, and a plurality of first openings 55 communicating with the first conveying cavity 54 are circumferentially opened on the inner annular surface of the sealing ring opening 53, and an external conduit 56 passing through the conveying cavity block 52 is fixedly mounted inside the first conveying cavity 54, and the external conduit 56 on one side of the square frame 51 is connected to the storage tank 13 on the outside, and the external conduit 56 on one side is connected to the second electric pump 12 on the outside.

[0049] Among them, the configured conveying module 5 mainly plays a conveying role. During the operation, the storage tanks 13 on both sides of the square frame 51 and the second electric pump 12 can be controlled to work separately. The storage tank 13 can store cleaning reagents, including but not limited to citric acid dilution solution. The configured second electric pump 12 is a structure in the prior art that can inhale air and generate airflow, because the square frame 51 is fixedly installed with a conveying cavity block 52 on both sides. During the operation, the citric acid dilution solution stored in the storage tank 13 can enter the interior of the first conveying cavity 54 through the external conduit 56 and be output through the first port 55 connected to the first conveying cavity 54. Similarly, the airflow generated by the second electric pump 12 during operation can also enter the interior of the first conveying cavity 54 through the external conduit 56 and be output through the first port 55 connected to the first conveying cavity 54. The conveying of citric acid dilution solution and the conveying of airflow need to be carried out separately during the operation to avoid mutual interference, and corresponding electric valves are configured on the conveying ends.

[0050] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the linkage drive module 7 includes a casing 71 fixedly mounted at the middle position of the inner side of the square casing 51, and a first bevel gear sleeve rod 72 movably mounted at the inner middle position of the casing 71 facing the upper and lower conveying cavity blocks 52, and the upper and lower sides of the casing 71 are fixedly mounted with a first protruding sleeve 75 which is inserted into the sealing ring sleeve 53, and the interior of the first protruding sleeve 75 is fixedly mounted with an embedded sealing sleeve 76, which is flush with the first conveying cavity 54 on the sealing ring sleeve 53, and a plurality of second through openings 77 which are closely corresponding to the first through opening 55 are opened in a circular manner on the side wall of the embedded sealing sleeve 76, and an extension rod 78 is fixedly mounted on the upper and lower sides of the first bevel gear sleeve rod 72, and a first inner nested cylinder 79 which is movably sleeved in the embedded sealing sleeve 76 is fixedly mounted on the extension rod 78.

[0051] Among them, the first bevel gear sleeve rod 72 is a rod structure with a bevel gear, which is movably mounted in the middle position of the housing 71. The upper and lower sides of the housing 71 are fixedly mounted with a first protruding sleeve 75 that is inserted into the sealing ring sleeve 53. Therefore, the housing 71 and the first protruding sleeves 75 on both sides are an integral structure, and the embedded sealing sleeve 76 inside the first protruding sleeve 75 is closely corresponding to the first through-hole 55 through the second through-hole 77, so that the material transported from the first delivery cavity 54 can enter the first protruding sleeve 7 5 is embedded in the internal sealing sleeve 76, and the outer edges of the contact positions are equipped with corresponding sealing rings to increase the sealing performance of the joint position. Extension rods 78 are fixedly installed on the upper and lower sides of the first bevel gear sleeve rod 72. The configured extension rods 78 are fixedly installed with first inner nesting cylinders 79 that are movably sleeved in the embedded sealing sleeve 76. Therefore, the first bevel gear sleeve rod 72, the extension rods 78, and the first inner nesting cylinder 79 are integrated and movably mounted on the sleeve housing 71, and can rotate with the rotation of the first bevel gear sleeve rod 72.

[0052] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the linkage drive module 7 also includes a servo motor 6 fixedly mounted on the outer wall of the square casing 51, and a second bevel gear sleeve rod 73 is fixedly mounted on the output end of the servo motor 6. The second bevel gear sleeve rod 73 penetrates into the interior of the casing 71 and meshes with the side of the first bevel gear sleeve rod 72. A third bevel gear sleeve rod 74 is also movably mounted on the side of the side wall of the casing 71 facing the negative pressure suction cavity 2, and the third bevel gear sleeve rod 74 also meshes with the side of the first bevel gear sleeve rod 72. A diaphragm cleaning brush 16 is fixedly mounted on the outside of the third bevel gear sleeve rod 74. The size of the diaphragm cleaning brush 16 is the same as the size of the opening end of the negative pressure suction cavity 2, and a sealing ring is fixedly mounted on the side of the diaphragm cleaning brush 16.

[0053] Among them, the configured second bevel gear sleeve rod 73, the third bevel gear sleeve rod 74 and the middle first bevel gear sleeve rod 72 as a whole constitute a cross-shaped structure as shown in the figure. The servo motor 6 on the outer wall drives the second bevel gear sleeve rod 73 to rotate through the output end to drive the meshing first bevel gear sleeve rod 72 to rotate, and the rotating first bevel gear sleeve rod 72 can drive the meshing third bevel gear sleeve rod 74 to rotate, so that each structure rotates in conjunction with the inner cavity.

[0054] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the interiors of the extension rod 78, the first bevel gear sleeve 72 and the first inner nested tube 79 are all cavity structures, and the cavities inside the extension rod 78, the first bevel gear sleeve 72 and the first inner nested tube 79 are all connected. The outer annular surface of the first inner nested tube 79 is provided with a plurality of through openings that closely correspond to the second through opening 77. The outer side of the first protruding sleeve 75 is fixedly installed with a plurality of conical cavities 712. The outer side of the first inner nested tube 79 is fixedly installed with a first electric pump 710. A cavity tube 711 is fixedly installed on the outer output end of the first electric pump 710. The cavity tube 711 is connected with the cavity inside the first inner nested tube 79 through the first electric pump 710.

[0055] Among them, the interiors of the configured extension rod 78, the first bevel gear sleeve rod 72, and the first inner nested cylinder 79 are all cavity structures. Specifically, the interior of the first bevel gear sleeve rod 72 is a cavity structure, and the interiors of the extension rods 78 and the first inner nested cylinder 79 on both sides are also cavity structures, and the interiors of the extension rods 78 and the first inner nested cylinder 79 on both sides are connected to the interior of the first bevel gear sleeve rod 72. When the material is introduced from the outside of the first inner nested cylinder 79 through the second opening 77, the introduced material can enter the first bevel gear sleeve rod 72 through the inner cavity of the first inner nested cylinder 79. Whether it is the liquid material in the storage tank 13 or the airflow generated at the output end of the second electric pump 12, it can be transported to the cleaning modules 9 on both sides through the internal cavity.

[0056] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, a plurality of fan heads 713 located in each conical cavity 712 are fixedly installed on the outer surface of the cavity tube 711, and the storage tank 13 is wrapped as a whole on the outside of the conical cavity 712, and a magnetic coating is provided on the side of each fan blade of the fan head 713 on the same side of the storage tank 13, and a magnetic sleeve 14 is adsorbed and installed on the outside of the conical cavity 712 of the fan head 713 with the magnetic coating through the magnetic effect, and a plurality of stirring rods 15 are fixedly installed in a circular manner on the outer surface of the magnetic sleeve 14.

[0057] Among them, the configured fan head 713 is a cylindrical sleeve structure composed of multiple groups of fan blades, which is fixedly installed on the outer surface of the cavity tube 711 as a whole and is located in each conical cavity 712. The outside of the conical cavity 712 on one side, that is, the side of the storage tank 13, is wrapped around the outside of the conical cavity 712 as a whole, and each fan blade of the fan head 713 on the same side of the storage tank 13 is provided with a magnetic coating on the side, and the outer side of the conical cavity 712 of the fan head 713 with the magnetic coating is adsorbed and installed with a magnetic sleeve 14 through the magnetic effect. During the rotation of the fan head 713 on this side, the fan head 713 on this side can be adsorbed by the internal and external adsorption. The characteristics of the magnetic sleeve 14 adsorbed on the outside are driven, so that the magnetic sleeve 14 on the outside drives several stirring rods 15 on the outer surface to stir the interior of the storage tank 13. Because during the reaction process, the citric acid stored in the storage tank 13 is a weak organic acid that is easily soluble in water, but its solubility is significantly affected by temperature. In a static state, the bottom of the tank may breed microorganisms due to local humidity or residues, and the solution may form stratification due to density differences or impurity sedimentation, resulting in uneven concentration. By rotating the stirring rod 15 through the linkage end, the solution stratification can be eliminated, ensuring consistent concentration distribution, and dynamic mixing can reduce local microenvironment differences and delay chemical decomposition.

[0058] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, a second protruding sleeve 715 is fixedly installed at the outer end position of the first protruding sleeve 75, an protruding sleeve 8 is inserted and installed on the outer surface of the second protruding sleeve 715, a movable sleeve plate 10 is movably installed on the outer surface of the protruding sleeve 8, and a second electric telescopic rod 11 is fixedly installed between the movable sleeve plates 10 on the upper and lower sides of the sleeve shell 71, a maintenance opening is opened on the side wall of the collaborative cleaning cavity 3, and an outer flip cover plate 17 is press-installed on the maintenance opening.

[0059] Among them, the second protruding sleeve 715 and the first protruding sleeve 75 are an integral structure, and the protruding sleeve 8 is slidably sleeved on the outside of the second protruding sleeve 715 as a whole. Under the electric telescopic action of the second electric telescopic rod 11, the movable sleeve plates 10 on both sides can be controlled to drive the protruding sleeve 8 to expand or retract outward to change the expanded length of the protruding sleeve 8. When the cleaning work is not in progress, the movable sleeve plates 10 can be controlled to retract the protruding sleeves 8 on both sides, and during the cleaning process, the protruding sleeves 8 on both sides can be expanded to fit the ball valves on both sides.

[0060] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the cleaning module 9 includes four rounded curved feeler rods 91 fixedly mounted on the side end of the extended sleeve 8, which can fit on the outer spherical surface of the ball valve and are arranged in a circle. A number of round-mouth sleeves 93 communicating with the second conveying cavity 92 are sequentially opened on the inner arc edge of each rounded curved feeler rod 91. A second inner nested cylinder 94 is fixedly mounted in the round-mouth sleeve 93, and a card slot 95 is fixedly mounted inside the second inner nested cylinder 94, and a third inner nested cylinder 96 is movably mounted through the card slot 95.

[0061] The second delivery cavity 92 is formed inside each of the rounded curved contact rods 91 , and a plurality of circular sleeves 93 communicating with the second delivery cavity 92 are sequentially formed on the outer arc edge.

[0062] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the end of the third inner nested cylinder 96 extending from the second inner nested cylinder 94 is provided with a spray port communicating with the second conveying cavity 92, and a plurality of cleaning blocks 98 are installed in an insert-type manner at the outer edge of the spray port. The end of the third inner nested cylinder 96 away from the cleaning block 98 extends into the interior of the second conveying cavity 92 through the second inner nested cylinder 94, and a plurality of stirring blades 97 are fixedly installed in a circular manner on the extending end.

[0063] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the side end of the cavity tube 711 is in a closed state, and the closed end surface is fixedly connected to the extended sleeve 8 at the same side end through a support rod, and four subdividing conduits 714 communicating with the cavity inside the cavity tube 711 are fixedly installed on the closed end surface. The subdividing conduits 714 are of a hose structure as a whole, and the extended ends are respectively connected to the second conveying cavity 92 of the rounded curved contact rod 91 on each side through the extended sleeve 8.

[0064] The specific cleaning principle of the configured cleaning module 9 is as follows:

[0065] First, open the outer flip cover 17 arranged on the outside of the collaborative cleaning cavity 3, inject the cleaning reagent into the storage tank 13, then close the outer flip cover 17, and control the position of the delivery module 5 at the output end through the first electric telescopic rod 4, so that the diaphragm cleaning brush 16 is sealed and stuck at the intersection of the collaborative cleaning cavity 3 and the negative pressure suction cavity 2, and the collaborative cleaning cavity 3 and the negative pressure suction cavity 2 are completely separated. In this state, start the diaphragm metering pump 1, and the drive module inside the diaphragm metering pump 1 reciprocates to drive the diaphragm on the side of the negative pressure suction cavity 2 to reciprocate and expand, thereby generating negative pressure inside the negative pressure suction cavity 2, so that the ball valves on both sides of the negative pressure suction cavity 2 are opened and closed crosswise, and the tungstic acid in the tungstic acid tank connected to the outside is transported.

[0066] Then, as the conveying work proceeds, because high-purity tungstic acid will form microcrystals under pressure fluctuations, it will eventually accumulate on the contact surface between the ball valve ball and the valve seat, causing sealing failure and high flow deviation. At this time, the operation of the diaphragm metering pump 1 can be suspended, and then the telescopic effect of the output end of the first electric telescopic rod 4 is used to control the diaphragm cleaning brush 16 to move toward the inside of the collaborative cleaning cavity 3, and finally fit on the outer surface of the diaphragm of the collaborative cleaning cavity 3, and expand outward through the output end of the second electric telescopic rod 11, driving the extended sleeve 8 on the movable sleeve plate 10 on both sides to move outward until the rounded curved touch rod 91 of the outer cleaning module 9 is inserted into the ball valves on both sides.

[0067] Then, the servo motor 6 on the side wall of the square frame 51 drives the linkage drive module 7 using the output end of the servo motor 6 to perform cleaning. The cleaning process is divided into three stages, as follows:

[0068] Pre-cleaning stage: First, close one end of the storage tank 13, open one end of the second electric pump 12, and rotate the output end of the second electric pump 12 to compress the external air to generate high-pressure airflow, and inject the high-pressure airflow into the first delivery cavity 54 through the external conduit 56, and discharge it into the first inner nested cylinder 79 covered by the sealing ring sleeve 53 through the first opening 55. The airflow entering the first inner nested cylinder 79 passes through the internal cavity and enters the subdivided conduits 714 on both sides, and is discharged into the rounded curved contact rod 91 through the subdivided conduits 714. The second delivery cavity 92 is finally discharged through the third inner nested cylinder 96, and the third inner nested cylinder 96 is aligned with the outer surface of the ball removal valve, and the airflow can be used to perform preliminary cleaning on the spherical surface to remove loose particles, avoid the subsequent reagents from mixing with stubborn dirt to form a viscous substance, and reduce the difficulty of cleaning. In addition, during the preliminary cleaning process, the second bevel gear sleeve rod 73 at the output end can be synchronously controlled by the servo motor 6 to drive the first bevel gear sleeve rod 72 to rotate, so that the outward sleeves 8 on both sides of the first bevel gear sleeve rod 72 rotate synchronously, achieving a 360-degree surround cleaning effect.

[0069] Reagent spraying stage: Then open one end of the storage tank 13, close one end of the second electric pump 12, discharge the cleaning reagent stored inside through the storage tank 13, and inject it into the first delivery cavity 54 through the external conduit 56, and then discharge it into the first inner nested cylinder 79 covered by the sealing ring sleeve 53 through the first opening 55. The reagent entering the first inner nested cylinder 79 passes through the internal cavity and enters the subdivided conduits 714 on both sides, and is discharged into the second delivery cavity 92 of the rounded curved contact rod 91 through the subdivided conduits 714, and finally through the third inner nested cylinder 9 6 is discharged, and the third inner nested cylinder 96 is aligned with the outer surface of the ball valve, so that the discharged cleaning reagent can directly act on the spherical surface, and the spherical surface is covered with the acidic reagent to dissolve the metal oxide or salt crystals and remove the residual crystal blocks. The spraying time at this stage can be increased according to demand, and in the process of the reagent spraying stage, the second bevel gear sleeve rod 73 at the output end can also be synchronously controlled by the servo motor 6 to drive the first bevel gear sleeve rod 72 to rotate, so that the outward sleeves 8 on both sides of the first bevel gear sleeve rod 72 rotate synchronously, achieving a 360-degree surround spraying effect.

[0070] Dynamic flushing stage: Then open one end of the storage tank 13 and one end of the second electric pump 12 at the same time, discharge the cleaning reagent stored inside through the storage tank 13, and form a high turbulence characteristic of the gas-liquid two-phase flow in conjunction with the airflow generated by the second electric pump 12, and inject the high turbulence characteristic material of the gas-liquid two-phase flow into the first delivery cavity 54 through the external conduit 56, and discharge it into the first inner nested cylinder 79 covered by the sealing ring sleeve 53 through the first opening 55. The high turbulence characteristic material of the gas-liquid two-phase flow inside the first inner nested cylinder 79 passes through the internal cavity and enters the subdivision conduits 714 on both sides, and passes through the subdivision conduits 714. The tube 714 is discharged into the second conveying cavity 92 of the rounded curved contact rod 91, and finally discharged through the third inner nested cylinder 96. The third inner nested cylinder 96 is aligned with the outer surface of the ball valve, so that the high turbulence characteristic material of the discharged gas-liquid two-phase flow can directly act on the spherical surface, and the shear force formed by the airflow is directly increased to increase the spraying force at the cleaning end, further increasing the cleaning effect. In this process, the second bevel gear sleeve 73 at the output end can be controlled by the servo motor 6 to drive the first bevel gear sleeve 72 to rotate, so that the outward sleeves 8 on both sides of the first bevel gear sleeve 72 rotate synchronously, achieving a 360-degree surround spraying effect.

[0071] Post-processing stage: After completing the pre-cleaning stage, the reagent spraying stage and the dynamic flushing stage, one end of the storage tank 13 can be closed again, and one end of the second electric pump 12 can be opened. The output end of the second electric pump 12 is rotated to compress the external air to generate a high-pressure airflow, and the high-pressure airflow is used to blow pure airflow on the spherical surface to thoroughly dry the spherical surface. In the process of airflow blowing, the second bevel gear sleeve rod 73 at the output end can also be synchronously controlled by the servo motor 6 to drive the first bevel gear sleeve rod 72 to rotate, so that the outward sleeves 8 on both sides of the first bevel gear sleeve rod 72 rotate synchronously to achieve a 360-degree surround-type blowing effect.

[0072] In which, when the output end of the servo motor 6 on each side is driven to rotate the first bevel gear sleeve rod 72, the conical cavity 712 inside the storage tank 13 can be driven by the fan head 713 to rotate the magnetic sleeve 14 to cooperate with the stirring rod 15 to stir the cleaning reagent.

[0073] Finally, after the cleaning is completed, the extended sleeves 8 on both sides are retracted again, and the diaphragm cleaning brush 16 is retracted by using the first electric telescopic rod 4 to restore the working state of the negative pressure suction cavity 2.

[0074] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A metering pump for tungstic acid processing and transportation, including a diaphragm metering pump, characterized in that: A negative pressure suction cavity is fixedly mounted on the output end of the diaphragm metering pump, the outer side of the negative pressure suction cavity is open, and a cooperative cleaning cavity for cleaning the interior of the negative pressure suction cavity is fixedly mounted on the open end, two sets of first electric telescopic rods are fixedly mounted inside the cooperative cleaning cavity, and a delivery module facing the center of the negative pressure suction cavity is mounted on the output end of the first electric telescopic rod, and a linkage drive module is configured on the delivery module; The linkage drive module includes a diaphragm cleaning brush for cleaning the diaphragm of the negative pressure suction cavity, and also includes a cleaning module for cleaning the suction valve and the discharge valve on the negative pressure suction cavity; The cleaning module includes four rounded curved feeler rods that can fit on the outer spherical surface of the ball valve and are arranged in a circular pattern. A second delivery cavity is opened inside each rounded curved feeler rod, and a number of movable cleaning blocks are sequentially arranged through the second delivery cavity. While the delivery module delivers cleaning reagent to the second delivery cavity for spray cleaning, it drives the movable cleaning blocks to clean the outer spherical surface of the ball valve.

2. A metering pump for tungstic acid processing and transportation according to claim 1, characterized in that: The conveying module includes a square frame fixedly mounted on the output end of the first electric telescopic rod, and conveying cavity blocks are fixedly mounted at the upper and lower sides of the square frame, and the conveying cavity blocks are provided with sealed circular ring openings, and the interior of the conveying cavity blocks is provided with a first conveying cavity at a position outside the sealed circular ring openings, and a plurality of first openings communicating with the first conveying cavity are circumferentially arranged on the inner circular surface of the sealed circular ring openings, and an external conduit passing through the conveying cavity block is fixedly mounted inside the first conveying cavity, and the outer side of the external conduit on one side of the square frame is connected to a storage tank, and the outer side of the external conduit on one side is connected to a second electric pump.

3. A metering pump for tungstic acid processing and transportation according to claim 2, characterized in that: The linkage drive module includes a shell fixedly mounted at the middle position of the inner side of the square shell frame, a first bevel gear sleeve rod movably mounted at the middle position inside the shell facing the upper and lower conveying cavity blocks, the upper and lower sides of the shell are fixedly mounted with a first protruding sleeve sleeved in a sealing ring sleeve, an embedded sealing sleeve is fixedly mounted inside the first protruding sleeve, the embedded sealing sleeve is flush with the first conveying cavity on the sealing ring sleeve, a plurality of second through openings corresponding to the first through openings are sequentially opened in a circular manner on the side wall of the embedded sealing sleeve, an extension rod is fixedly mounted on the upper and lower sides of the first bevel gear sleeve rod, and a first inner nested cylinder movably sleeved in the embedded sealing sleeve is fixedly mounted on the extension rod.

4. A metering pump for tungstic acid processing and transportation according to claim 3, characterized in that: The linkage drive module also includes a servo motor fixedly mounted on the outer wall of the square casing, a second bevel gear sleeve rod is fixedly mounted on the output end of the servo motor, the second bevel gear sleeve rod penetrates into the interior of the casing and meshes with the side of the first bevel gear sleeve rod, a third bevel gear sleeve rod is movably mounted on the side of the casing side wall facing the negative pressure suction cavity, and the third bevel gear sleeve rod is also meshed with the side of the first bevel gear sleeve rod, a diaphragm cleaning brush is fixedly mounted on the outside of the third bevel gear sleeve rod, the size of the diaphragm cleaning brush is the same as the size of the opening end of the negative pressure suction cavity, and a sealing ring is fixedly mounted on the side of the diaphragm cleaning brush.

5. A metering pump for tungstic acid processing and transportation according to claim 4, characterized in that: The interiors of the extension rod, the first bevel gear sleeve and the first inner nested tube are all hollow structures, and the cavities inside the extension rod, the first bevel gear sleeve and the first inner nested tube are all connected. The outer annular surface of the first inner nested tube is provided with a plurality of through openings that closely correspond to the second through openings. The outside of the first protruding sleeve is fixedly installed with a plurality of conical cavities. The outside of the first inner nested tube is fixedly installed with a first electric pump. A cavity tube is fixedly installed on the outer output end of the first electric pump, and the cavity tubes are connected with the cavity inside the first inner nested tube through the first electric pump.

6. A metering pump for tungstic acid processing and transportation according to claim 5, characterized in that: Several fan heads located in each conical cavity are fixedly installed on the outer surface of the cavity tube, the storage tank is wrapped as a whole on the outside of the conical cavity, and the side edges of each fan blade of the fan head on the same side of the storage tank are provided with a magnetic coating, and the outer sides of the conical cavities of the fan heads with the magnetic coating are adsorbed and installed with magnetic circular sleeves through the magnetic effect, and several stirring rods are fixedly installed in a circular manner on the outer surface of the magnetic circular sleeves.

7. A metering pump for tungstic acid processing and transportation according to claim 6, characterized in that: A second protruding sleeve is fixedly installed at the outer end of the first protruding sleeve, an protruding sleeve is inserted into the outer surface of the second protruding sleeve, a movable sleeve plate is movably installed on the outer surface of the protruding sleeve, and a second electric telescopic rod is fixedly installed between the movable sleeve plates on the upper and lower sides of the sleeve shell, a maintenance opening is opened on the side wall of the collaborative cleaning cavity, and an outer flip cover plate is press-installed on the maintenance opening.

8. A metering pump for tungstic acid processing and transportation according to claim 7, characterized in that: The cleaning module includes four rounded curved touch rods fixedly mounted on the side end of the extended sleeve, which can fit on the outer spherical surface of the ball valve and are arranged in a circle. A number of circular sleeves communicating with the second conveying cavity are sequentially opened on the inner arc edge of each rounded curved touch rod. A second inner nested cylinder is fixedly mounted in the circular sleeve, and a card slot is fixedly mounted inside the second inner nested cylinder, and a third inner nested cylinder is movably mounted through the card slot.

9. A metering pump for tungstic acid processing and transportation according to claim 8, characterized in that: The end of the third inner nested cylinder extending out of the second inner nested cylinder is provided with a spray port communicating with the second conveying cavity, and a plurality of cleaning blocks are installed in an insert-type manner at the outer edge of the spray port. The end of the third inner nested cylinder away from the cleaning block extends into the interior of the second conveying cavity through the second inner nested cylinder, and a plurality of stirring blades are fixedly installed in a circular manner on the extending end.

10. A metering pump for tungstic acid processing and transportation according to claim 9, characterized in that: The side end of the cavity tube is in a closed state, and the closed end surface is fixedly connected to the extended sleeve at the same side end through a support rod, and four subdivision conduits communicating with the cavity inside the cavity tube are fixedly installed on the closed end surface. The subdivision conduits are a hose structure as a whole, and the extended ends are respectively connected to the second conveying cavity of the rounded curved touch rod on each side through the extended sleeve.

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