A high-precision linkage adjusting device for different pumps

Abstract

The application belongs to the technical field of linkage control of centrifugal pumps, and specifically relates to a high-precision linkage adjusting device for different pumps, which comprises a water outlet pipe, the outer wall of the water outlet pipe is provided with gradient degradation units in an array type, and an emergency treatment unit is arranged on the other side of the water outlet pipe; the gradient changes the pitch of the snake groove, so that the cam at different positions produces a differentiated rotation angle, and then the relative action depth of the floating ball and the fluid is distributed in a gradient, forming a wide-band damping environment, that is, through pure mechanical linkage of pressure sensing, mechanical transmission and gradient damping adjustment, targeted degradation and buffering of relatively wide-band pressure fluctuation are realized, and the inherent defects of the traditional fixed damping buffering device are solved.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal pump linkage control technology, specifically relating to a high-precision linkage adjustment device for different pumps. Background Technology

[0002] Hemodialysis water treatment equipment: The core lifeline equipment of a hemodialysis center. Its core function is to remove suspended solids, heavy metals, bacteria, viruses, endotoxins and soluble salts from municipal tap water through multi-media filtration, activated carbon adsorption, ion exchange softening, reverse osmosis and electro-deionization processes, so as to produce ultrapure water that meets national standards and provides qualified dialysis water for hemodialysis machines, hemofiltration machines and other treatment equipment. In hemodialysis water treatment systems, more than 90% of the pumps are centrifugal pumps, and pressure fluctuations are the most common and most dangerous operational failures in the system. In actual operation, centrifugal pumps rely on high-speed rotating impellers to transport fluids. When each blade on the impeller passes through the volute outlet, it will generate periodic impacts on the fluid, forming a blade passing frequency pulsation that is proportional to the number of blades multiplied by the rotational speed. Moreover, the aforementioned fluctuations are an inherent characteristic of centrifugal pumps and cannot be completely eliminated. Pressure fluctuations have the characteristic of propagating rapidly along the fluid pipeline network. Fluctuations in the upstream pump will be transmitted to the downstream on a one-to-one basis, and changes in the flow rate of the downstream pump will also have a reaction effect on the upstream pump, forming complex coupled fluctuations, which can lead to unstable water quality, shortened equipment life, and treatment safety risks. Furthermore, the stable operation of the entire system is highly dependent on the single core component of the main control PLC. Once the main control PLC experiences hardware failure, program crashes, or power outage, all water pumps will lose coordinated control, causing the entire water treatment system to shut down. For hemodialysis centers that need to operate continuously for 24 hours, system shutdown means that ongoing dialysis treatments are forced to be interrupted, which may lead to related treatment safety risks. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution: a high-precision linkage adjustment device for different pumps, including a water outlet pipe, wherein gradient degradation units are installed in an array on the outer wall of the water outlet pipe, and an emergency treatment unit is provided on the other side of the water outlet pipe. The gradient degradation unit includes: One primary pressure stabilizing pipe is attached to the end of the outlet pipe away from the ground surface using a plug-in snap-fit ​​assembly. There are at least two secondary pressure stabilizing pipes, which are evenly distributed in an array on one side of the primary pressure stabilizing pipe, and the secondary pressure stabilizing pipes are connected to the outlet pipe by snap-fit ​​assembly; in addition, the secondary pressure stabilizing pipes and the primary pressure stabilizing pipes are arranged sequentially along the axial direction of the outlet pipe. Angle rings are slidably snapped onto the inner wall of the first-stage and second-stage pressure stabilizing pipes near the axis of the outlet pipe. Angle ring is snapped into the inner wall of the first-stage pressure stabilizing pipe at the end furthest from the corner ring, and simultaneously slidably snapped into the inner wall of the second-stage pressure stabilizing pipe at the end furthest from the axis of the outlet pipe. The sealing ring is snapped onto the end face of the corner ring that is away from the corner ring. The voltage stabilizing rod is installed in a plug-in snap-fit ​​configuration at the center of the corner ring, and the voltage stabilizing rod is also slidably snap-fitted to the corner ring; in addition, the length of the voltage stabilizing rod located inside the primary voltage stabilizing tube is greater than the length of the voltage stabilizing rod located inside the secondary voltage stabilizing tube; A compression spring is snapped onto the outer wall of the stabilizing rod on the opposite side of the corner ring and the corner collar; The oscillating ball is snap-fitted onto the end of the pressure stabilizing rod near the axis of the outlet pipe; furthermore, the diameter of the oscillating ball is equal to the inner diameter of the pressure stabilizing pipe. The transmission bead is coaxially located inside the primary voltage regulator tube, and the transmission bead is snapped into the voltage regulator rod.

[0004] Preferably, a connecting pipe is inserted and installed between the outer walls of the primary voltage regulator and the secondary voltage regulator, as well as between the outer walls of adjacent secondary voltage regulators. A gasket is slidably snapped onto the inner wall of the connecting pipe near the primary voltage regulator, and a washer is snapped onto the inner wall of the gasket away from the primary voltage regulator. A drive shaft, which is slidably snapped onto the gasket, is inserted and snapped onto the gasket shaft. A wedge plate adapted to the drive ball is snapped onto the drive shaft near the primary voltage regulator. A return spring sleeved on the outer wall of the drive shaft is snapped onto the opposite surfaces of the gasket and the washer.

[0005] Preferably, the connecting pipe has a primary tube, a secondary tube, and a tertiary tube installed sequentially and rotatably along its axial direction. The outer wall of the drive shaft is uniformly fitted with rings along its axial direction, and the number and position of the rings correspond one-to-one with the number and position of the secondary voltage regulator tubes. A limit rod is fitted at the middle position of the outer wall of the ring. The inner walls of the primary tube, diode, and transistor are all provided with serpentine grooves, and the pitch of the serpentine grooves on the inner walls of the primary tube, diode, and transistor decreases gradually along the axial direction of the drive shaft. The outer walls of the primary tube, secondary tube, and transistor are all fitted with cams adapted to the single-head push rod.

[0006] Preferably, an inner support ring is slidably snapped onto the inner wall of the end of the secondary pressure stabilizing pipe opposite to the axis of the outlet pipe, and a positioning ring is snapped onto the inner wall of the end of the secondary pressure stabilizing pipe near the axis of the outlet pipe. A single-headed push rod, which is also snapped onto the inner support ring, is slidably snapped onto the center of the positioning ring. The end of the single-headed push rod near the axis of the outlet pipe is hollow. A telescopic spring sleeved on the outer wall of the single-headed push rod is snapped onto the opposite surfaces of the inner support ring and the positioning ring. A corrugated ring is coaxially arranged in the middle of the inner wall of the secondary pressure stabilizing pipe, and the corrugated ring is rotatably fitted to the inner wall of the secondary pressure stabilizing pipe through a connector. An end ring is snapped onto the outer wall of the end of the single-headed push rod near the axis of the outlet pipe, and a corner ball is snapped onto the outer wall of the end ring. A movable ring, which is slidably snapped onto the inner wall of the secondary pressure stabilizing pipe, is provided on the outer wall of the corrugated ring, and the movable ring is rotatably fitted to the corner ring.

[0007] Preferably, the pump body is installed at the inlet end of the outlet pipe via a flange, and a pump base is installed at the end of the pump body near the ground via a mounting seat. A coupling assembly is coaxially installed at one end of the pump body, and a three-phase asynchronous motor is installed at the end of the coupling assembly away from the pump body. The three-phase asynchronous motor and the pump base are detachably assembled via bolts. The inlet pipe is installed at the end of the pump body away from the three-phase asynchronous motor via a flange insertion connection.

[0008] Preferably, the emergency response unit includes: The branch pipe has a U-shaped cross-section and is installed in the middle of the outer wall of the outlet pipe on the side away from the ground using a plug-in snap-fit ​​method. An overflow valve is installed in the middle of the inner wall of the horizontal section of the branch pipe via a mounting plate. The emergency pipe is installed on the outer wall of the outlet end of the water pipe in a plug-in snap-fit ​​manner, and the emergency pipe is horizontally distributed between the emergency pipe and the ground. The secondary pipe is installed on the outer wall of the vertical section of the branch pipe near the pump body by a plug-in snap-fit, and the secondary pipe and the emergency pipe are parallel to each other and directly opposite each other; The corner piece is slidably snapped onto the inner wall of the vertical section of the branch pipe near the pump body. The ring plate is coaxially set on the side of the corner plate away from the axis of the outlet pipe, and the ring plate is snapped and assembled with the inner wall of the branch pipe. The double-ended spring floating ball is slidably snapped onto the center of the ring plate, and the shaft section of the double-ended spring floating ball passes through the corner plate. The shaft section of the double-ended spring floating ball is snapped onto the corner plate. In addition, the diameter of the end of the double-ended spring floating ball closer to the axis of the water outlet pipe is larger than the diameter of the ball at the other end.

[0009] Preferably, a sealing plate is slidably snapped onto the inner wall of the secondary pipe near the branch pipe end. An angular positioning ring, which is snapped onto the inner wall of the secondary pipe, is coaxially arranged on the side of the sealing plate away from the branch pipe. A T-section column, which is snapped onto the sealing plate, is slidably snapped onto the axial center of the angular positioning ring. An angle wedge plate, which is compatible with a double-headed spring floating ball, is snapped onto the end of the T-section column near the branch pipe end. A first-stage roller clutch is rotatably installed on the inner wall of the secondary pipe away from the branch pipe end. A rotating drum, which is rotatably fitted to the inner wall of the first-stage roller clutch, is rotatably installed on the inner wall of the secondary pipe opposite to the branch pipe end via a mounting bracket. A spiral groove is opened on the inner wall of the rotating drum. A corresponding ring is snapped onto the outer wall of the T-section column away from the branch pipe end. A corresponding rod, which is compatible with the spiral groove, is snapped onto the middle position of the outer wall of the corresponding ring.

[0010] Preferably, a two-stage roller clutch is snapped onto the outer wall of the end of the rotary drum away from the branch pipe, and the two-stage roller clutch is snapped onto the inner wall of the auxiliary pipe via a connector. A gear is snapped onto the outer wall of the end of the two-stage roller clutch away from the branch pipe, and a rack is provided on one side of the gear to mesh with it.

[0011] Preferably, the auxiliary pipe and the emergency pipe are connected to an external pipe by a plug-in snap-fit ​​at the end away from the outlet pipe. The inner wall of the external pipe near the pump body is fitted with a corner ball core by a sealing film, and the corner ball core is snap-fitted with the rack. A bracket is snap-fitted to the end of the external pipe away from the pump body, and a metering air pump is snap-fitted to the end of the bracket away from the corner ball core.

[0012] A method for degrading and handling pressure fluctuations between different pumps within a hemodialysis water treatment system is employed. This method utilizes a high-precision linkage adjustment device for different pumps to implement pressure degradation and emergency handling. The specific steps are as follows: S1: When pressure fluctuations occur at the outlet end of the water pipe due to the impeller, the fluctuation ball dynamically senses the degree of fluid pressure fluctuation in real time. Then, under the reverse action of the fluctuation ball, the pressure stabilizing rod controls the transmission ball to move along the axis of the first-stage pressure stabilizing pipe to a displacement that matches the current pressure fluctuation. During this process, the transmission ball gradually deepens the relative interaction depth with the wedge plate until the transmission shaft control shim moves horizontally to a predetermined depth along the axis of the connecting pipe under the dual support and guidance of the connecting pipe and the washer. At this time, the ring control limit end rod at different positions and the axial movement process generate relative movement with the snake groove in different areas respectively, and the pitch of the snake groove in different areas is gradually reduced, so as to realize the gradient difference layout of the cam rotation angle at different positions under the same displacement of the transmission shaft. S2: Cams with different rotation angles synchronously change the axial displacement depth of the single-head push rod relative to it. Through the relative movement between the corner ball and the S-shaped groove on the inner wall of the bellows ring, the axial displacement of the single-head push rod is converted into the relative rotation of the bellows ring. This controls the moving ring to move towards the corner ring under the support and guidance of the secondary pressure stabilizing tube. The compression spring is compressed, and the relative interaction between the oscillating ball and the fluid is deepened. At the same time, due to the difference in the rotation angle of the cam, the relative interaction between the oscillating ball and the fluid at different positions also changes in a gradient. This can specifically gradient degrade, weaken and absorb the pressure fluctuation difference in response to the transmission of pressure fluctuations. Compared with the traditional fixed damping buffer, it is gentler and more targeted, and can effectively improve the buffering effect of pressure fluctuations. S3: Through the periodic oscillating relative motion between the double-headed spring floating ball and the wedge plate (the driving force is pressure oscillation), the T-section column, under the synchronous action of the wedge plate, controls the corresponding ring to drive the corresponding rod to move axially, and generates relative motion with the spiral groove on the inner wall of the rotating cylinder, controlling the gear to mesh with the rack, and then oscillatingly driving the corner ball core to move towards the gear. At any time, the metered air pump is squeezing the corner ball core away from the gear in a metered and periodic manner. By using the unidirectional motion of the first-stage and second-stage roller clutches, the unidirectional rotation of the gears is ensured, thereby ensuring the successful layout of a relatively stable reciprocating environment between the axial motion of the angular ball core caused by pressure fluctuations and the axial displacement of the angular ball core controlled by the quantitative air pump. If no pressure fluctuation occurs in the outlet pipe (pressure fluctuation is an inherent characteristic of the impeller; the absence of pressure fluctuation indicates that the main circuit fluid is interrupted), the angular ball core will always move unidirectionally away from the gear along the axis of the outer pipe until the angular ball core is in direct contact with the emergency pipe, which can be achieved by contacting the electrode plate as a trigger signal. At this point, the fluid will flow from the emergency pipe to the main circuit.

[0013] The present invention has the following beneficial effects: 1. In response to the inability of existing technologies to eliminate the frequency pulsation of centrifugal pump blades and the coupling fluctuations of multi-stage pumps, this application addresses the issue by gradient-changing the serpentine screw pitch to generate differentiated rotation angles of cams at different positions. This, in turn, controls the relative interaction depth between the oscillating ball and the fluid to exhibit a gradient distribution, creating a wide-band damping environment. In other words, through the pure mechanical linkage of pressure sensing, mechanical transmission, and gradient damping adjustment, targeted degradation and buffering of relatively wide-band pressure fluctuations are achieved, thus overcoming the inherent defects of traditional fixed damping buffer devices.

[0014] 2. This invention achieves adaptive adjustment for fluctuations of different amplitudes by automatically adjusting the relative interaction depth between the oscillating sphere and the fluid according to the pressure fluctuation amplitude. The greater the fluctuation amplitude, the greater the damping. In other words, the array-type buffer layout, which changes the pre-compression amount of the compression spring by gradient, accurately adapts to the wide-band characteristics of pipeline pressure fluctuations. It breaks the inherent resonance frequency limitation of the traditional uniform pre-compression array buffer structure. Even if the fluctuation of a certain frequency is consistent with the natural frequency of one of the positions, its energy will be quickly absorbed by the surrounding units of other frequencies, avoiding system-level resonance.

[0015] 3. This invention achieves timely emergency water supply through pure mechanical self-driven flow interruption emergency protection. That is, the emergency triggering mechanism relies entirely on the inherent blades of the centrifugal pump to drive the pump through frequency pulsation. The double-headed spring floating ball mechanically senses the pressure fluctuations, and the first-stage roller clutch and the second-stage roller clutch transmit the pressure in one direction, converting the periodic pressure fluctuations into the unidirectional axial movement of the corner ball core. During normal operation, pressure fluctuations drive the spherical core to move slowly toward the emergency tube, while a metered air pump pushes it back at a constant cycle to maintain dynamic balance. When the main circuit is interrupted, the pressure fluctuation disappears, and the metered air pump drives the corner bulb to move continuously in one direction until it connects with the emergency pipe, and the emergency water source is automatically injected into the main circuit. The self-driving mechanism, which utilizes the inherent pressure fluctuation, does not require any external power supply or control signal. Even in the extreme case of a power outage throughout the hospital, it can still automatically trigger the emergency water supply to ensure that dialysis treatment is not interrupted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is an appendix to the present invention. Figure 1 Internal structure diagram of the central structure.

[0018] Figure 3 This is a cross-sectional view of the three-dimensional structure of the gradient degradation unit in this invention.

[0019] Figure 4 This is an appendix to the present invention. Figure 3 Further diagram of the structure is shown below.

[0020] Figure 5 This is an appendix to the present invention. Figure 3 A three-dimensional view of a partial structure.

[0021] Figure 6 This is an appendix to the present invention. Figure 5 A magnified schematic diagram of the local structure at point A in the middle.

[0022] Figure 7 This is a three-dimensional view of the internal structure of the connecting pipe of the present invention.

[0023] Figure 8 This is an appendix to the present invention. Figure 7 Enlarged schematic diagram of the local structure at point B.

[0024] Figure 9 This is a cross-sectional view of the internal structure of the emergency response unit in this invention.

[0025] Figure 10 This is an appendix to the present invention. Figure 9 A three-dimensional view of a partial structure.

[0026] Figure 11 This is an appendix to the present invention. Figure 10 Enlarged schematic diagram of the local structure at point C.

[0027] The diagram is labeled as follows: 1. Water outlet pipe; 2. Gradient degradation unit; 3. Emergency treatment unit; 11. Pump body; 12. Pump base; 13. Coupling assembly; 14. Three-phase asynchronous motor; 15. Inlet pipe; 21. Primary voltage regulator tube; 22. Secondary voltage regulator tube; 23. Angle ring; 24. Angle ring; 25. Sealing ring; 26. Voltage stabilizing rod; 27. Compression spring; 28. Wave ball; 29. ​​Transmission ball; 211. Connecting pipe; 212. Gasket; 213. Washer; 214. Drive shaft; 215. Wedge plate; 216. Return spring; 221. Primary tube; 222. Secondary tube; 223. Tertiary tube; 224. Ring; 225. Limiting end rod; 226. Snake groove; 227. Cam; 231. Inner support ring; 232. Positioning ring; 233. Single-headed push rod; 234. Telescopic spring; 235. Corrugated ring; 236. End ring; 237. Corner stick; 238. Movable ring; 31. Branch pipe; 32. Overflow valve; 33. Emergency pipe; 34. Secondary pipe; 35. Angle plate; 36. Ring plate; 37. Double-ended spring floating ball; 311. Sealing plate; 312. Angle ring; 313. T-section post; 314. Angle wedge plate; 315. First-stage roller clutch; 316. Rotary drum; 317. Spiral groove; 318. Corresponding ring; 319. Corresponding rod; 321. Two-stage roller clutch; 322. Gear; 323. Rack; 331. External connecting pipe; 332. Corner ball core; 333. Support; 334. Metering air pump. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0030] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] Reference Figure 1 and Figure 2 It is known that a high-precision linkage adjustment device for different pumps includes an outlet pipe 1, with gradient degradation units 2 installed in an array on the outer wall of the outlet pipe 1, and an emergency treatment unit 3 set on the other side of the outlet pipe 1. Reference Figure 1 and Figure 2 It can be seen that the pump body 11 is installed at the inlet end of the outlet pipe 1 by means of a flange. The pump base 12 is installed at the end of the pump body 11 near the ground by means of a mounting seat. The coupling assembly 13 is installed coaxially at one end of the pump body 11. The three-phase asynchronous motor 14 is installed at the end of the coupling assembly 13 away from the pump body 11. The three-phase asynchronous motor 14 and the pump base 12 are detachably assembled by bolts. The inlet pipe 15 is installed at the end of the pump body 11 away from the three-phase asynchronous motor 14 by means of a flange plug-in connection.

[0032] A simplified process for producing pure water: The water to be treated (raw water, reverse osmosis permeate or pure water) enters the pump body 11 from the inlet pipe 15, gradually filling all the spaces of the impeller and volute, while the air in the pump is discharged through the automatic exhaust valve. Start the three-phase asynchronous motor 14. The motor drives the pump shaft and impeller to rotate synchronously at high speed through the coupling assembly 13. When the impeller rotates, the blades drive the water in the pump chamber to make a circular motion. Under the action of centrifugal force, the water is thrown from the center of the impeller to the edge of the impeller at high speed, gaining huge kinetic and pressure energy. A vacuum is formed at the center of the impeller. Under the action of atmospheric pressure, water in the inlet pipe 15 is continuously drawn into the center of the impeller, forming a continuous fluid transport cycle. The high-speed water flow ejected by the impeller enters the spiral volute. The cross-sectional area of ​​the flow channel in the volute gradually increases along the direction of water flow, and the flow velocity of the water gradually decreases. Most of the kinetic energy is converted into static pressure energy, forming a high-pressure water flow with stable pressure. High-pressure water flows from the volute outlet into the outlet pipe 1, and then sequentially into different rear structures; Shutdown procedure: First, slowly close the outlet gate valve to reduce the motor load, then stop the three-phase asynchronous motor 14, and finally close the inlet gate valve.

[0033] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 It can be seen that the gradient degradation unit 2 includes: a primary pressure stabilizing pipe 21, which is one in number and is assembled in a plug-in type with a snap-fit ​​on the end of the water outlet pipe 1 away from the outer wall of the ground; a secondary pressure stabilizing pipe 22, which is at least two in number and is evenly distributed in an array on one side of the primary pressure stabilizing pipe 21, and the secondary pressure stabilizing pipe 22 is snap-fitted to the water outlet pipe 1; in addition, the secondary pressure stabilizing pipe 22 and the primary pressure stabilizing pipe 21 are arranged sequentially along the axial direction of the water outlet pipe 1; and a corner ring 23, which is slidably snap-fitted onto the inner wall of the primary pressure stabilizing pipe 21 and the secondary pressure stabilizing pipe 22 near the axial direction of the water outlet pipe 1. Angle ring 24 is snap-fitted onto the inner wall of the first-stage pressure stabilizing pipe 21 at the end away from angle ring 23, and simultaneously slidably snap-fitted onto the inner wall of the second-stage pressure stabilizing pipe 22 at the end away from the axis of outlet pipe 1; sealing ring 25 is snap-fitted onto the end face of angle ring 23 on the side opposite to angle ring 24; pressure stabilizing rod 26 is snap-fitted onto the axis of angle ring 23, and simultaneously slidably snap-fitted onto angle ring 24; furthermore, the length of pressure stabilizing rod 26 located inside the first-stage pressure stabilizing pipe 21 is greater than the length of pressure stabilizing rod 26 located inside the second-stage pressure stabilizing pipe 22; compression spring 27 is snap-fitted onto the outer wall of pressure stabilizing rod 26 on the opposite side of angle ring 23 and angle ring 24; oscillating ball 28 is snap-fitted onto the end of pressure stabilizing rod 26 near the axis of outlet pipe 1; furthermore, the diameter of oscillating ball 28 is equal to the inner diameter of the pressure stabilizing pipe; transmission ball 29 is coaxially located inside the first-stage pressure stabilizing pipe 21, and transmission ball 29 is snap-fitted onto pressure stabilizing rod 26; Refer to 4. Figure 5 , Figure 7 and Figure 8 It can be seen that a connecting pipe 211 is inserted and installed between the outer walls of the primary voltage regulator 21 and the secondary voltage regulator 22, as well as between the outer walls of adjacent secondary voltage regulators 22. A gasket 212 is slidably snapped onto the inner wall of the connecting pipe 211 near the primary voltage regulator 21. A washer 213 is snapped onto the inner wall of the gasket 212 away from the primary voltage regulator 21. A drive shaft 214, which is slidably snapped onto the washer 213, is inserted and snapped onto the shaft of the gasket 212. A wedge plate 215, which is compatible with the drive bead 29, is snapped onto the end of the drive shaft 214 near the primary voltage regulator 21. A return spring 216 sleeved on the outer wall of the drive shaft 214 is snapped onto the opposite surfaces of the gasket 212 and the washer 213. Reference Figure 5 , Figure 7 and Figure 8It can be seen that the connecting pipe 211 is installed with a first-stage pipe 221, a second-stage pipe 222 and a third-stage pipe 223 in sequence along its axial direction. The outer wall of the drive shaft 214 is uniformly clamped with a ring 224 along its axial direction, and the number and position of the ring 224 correspond one-to-one with the number and position of the second-stage voltage regulator pipe 22. The middle position of the outer wall of the ring 224 is clamped with a limit rod 225. The inner walls of the first-stage pipe 221, the diode and the transistor are all provided with a snake groove 226, and the pitch of the snake groove 226 on the inner walls of the first-stage pipe 221, the diode and the transistor decreases gradually along the axial direction of the drive shaft 214. The outer walls of the first-stage pipe 221, the second-stage pipe 222 and the transistor are all clamped with a cam 227 that matches the single-head push rod 233. Reference Figure 3 , Figure 5 and Figure 6 It can be seen that an inner support ring 231 is slidably and snapped onto the inner wall of the end of the secondary pressure stabilizing pipe 22 away from the axis of the outlet pipe 1, and a positioning ring 232 is snapped onto the inner wall of the end of the secondary pressure stabilizing pipe 22 near the axis of the outlet pipe 1. A single-headed push rod 233, which is snapped onto the same inner support ring 231, is slidably and snapped onto the center of the positioning ring 232. The end of the single-headed push rod 233 near the axis of the outlet pipe 1 is a hollow structure. An extension sleeve fitted on the outer wall of the single-headed push rod 233 is snapped onto the opposite surfaces of the inner support ring 231 and the positioning ring 232. A spring 234 is provided. A corrugated ring 235 is coaxially arranged in the middle of the inner wall of the secondary pressure stabilizing pipe 22. The corrugated ring 235 is rotatably installed with the inner wall of the secondary pressure stabilizing pipe 22 through a connector. An end ring 236 is snapped onto the outer wall of the single-head push rod 233 near the axis of the outlet pipe 1. An angled ball rod 237 is snapped onto the outer wall of the end ring 236. A movable ring 238 is provided on the outer wall of the corrugated ring 235 and is slidably snapped onto the inner wall of the secondary pressure stabilizing pipe 22. The movable ring 238 is rotatably installed with the angled ring 24.

[0034] Gradient degradation buffering process of pressure fluctuation at port 1 of water outlet: It is hereby noted that the outer diameter of the oscillating ball 28 is the same as the inner diameter of the first-stage pressure stabilizing pipe 21 and the second-stage pressure stabilizing pipe 22, and the end face of the oscillating ball 28 near the axis of the outlet pipe 1 is located at the interface between the first-stage pressure stabilizing pipe 21 and the outlet pipe 1 in the initial state. First, during the fluid flow, the oscillating ball 28 in the primary region (defined by the outlet near the water outlet as "primary region, secondary region, and tertiary region," and these regions are divided sequentially downwards in this manner) first comes into relative contact with the pressure fluctuations in the fluid propagation path. The oscillating ball 28 transmits the pressure fluctuations to the pressure stabilizing rod 26. The pressure stabilizing rod 26 drives the corner ring 23 to move a predetermined depth along the axis of the primary pressure stabilizing pipe 21 under the support and guidance of the inner wall of the primary pressure stabilizing pipe 21 and the corner ring 24 (in specific implementation, the axial movement distance of the pressure stabilizing rod 26 is positively correlated with the pressure fluctuations). During this process, as the transmission bead 29 moves synchronously with the pressure stabilizing rod 26, it continuously increases the relative interaction with the wedge plate 215. Under the squeezing action of the wedge plate 215, the transmission shaft 214 moves horizontally a certain distance under the support and guidance of the connecting pipe 211 (the return spring 216 is compressed, and when the pressure fluctuation periodically disappears, the return spring 216 drives the transmission shaft 214 to return to its initial position through its own elastic potential energy). This application uses three (the specific number is not limited to) interlocking rings 224 as an example for further explanation: The rings 224, which are evenly distributed along the axis of the connecting tube 211, are spaced apart and correspond to the primary tube 221, the secondary tube 222, and the transistor, respectively. Furthermore, the inner walls of the primary tube 221, the secondary tube 222, and the transistor all have grooves 226, and the pitch between adjacent grooves 226 is uniformly adjusted in a gradient (in specific implementation, the pitch gradient can be reduced). During the movement of the drive shaft 214 (the axial displacement between the rings 224 at different positions is always equal), the limiting end rods 225 at different points generate relative movement with the corresponding "different pitch" snake grooves 226 under the axial control of the rings 224. Due to the gradient difference in the pitch of the snake groove 226, there is a "gradient" difference in the rotation angle between the cams 227 controlled by the single-stage transistor 221, the diode, and the transistor, respectively. The purpose of gradient adjustment: The relative degree of interaction between cam 227 and single-head push rod 233 also shows a gradient difference; When the single-ended cue is axially displaced, the compression spring 234 is compressed (refer to the return spring 216, which provides a long-term stable continuous working environment for the single-ended cue). As the end ring 236 follows the axial displacement of the single-ended cue, the corner cue 237 continuously deepens the working depth of the "S-shaped" groove on the inner wall of the corrugated ring 235. The corrugated ring 235 drives the movable ring 238 to slide (refer to the working structure between the corner cue 237 and the corrugated ring 235; the movable ring 238 and the corrugated ring 235 are assembled through the same structure, that is, when the corrugated ring 235 rotates, the movable ring 238 slides). The different axial displacements of the single-headed cue result in different axial displacements of the movable ring 238, and different "pre-compression" amounts of the compression spring 27 (in specific implementation, there is a limit to the sliding position engagement point between the corner ring 24 and the inner wall of the secondary pressure stabilizing pipe 22). Therefore, along the fluid flow direction, the buffer support provided by the compression spring 27 to the oscillating ball 28 varies in a gradient. The gradient pre-compression array layout is equivalent to a wideband filter, which can cover a relatively wide range of fluctuations in the hemodialysis water treatment system, from high-frequency blade pulsation to low-frequency water hammer impact, while fundamentally avoiding the resonance amplification problem that is prone to occur in uniform arrays.

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 9 It can be seen that the emergency handling unit 3 includes: a branch pipe 31 with a U-shaped cross-section, which is plugged in and snapped onto the middle of the outer wall of the outlet pipe 1 on the side away from the ground; an overflow valve 32, which is snapped onto the middle of the inner wall of the horizontal section of the branch pipe 31 via a mounting plate; an emergency pipe 33, which is plugged in and snapped onto the outer wall of the outlet end of the outlet pipe 1, and the emergency pipe 33 is horizontally distributed with respect to the ground; and a secondary pipe 34, which is plugged in and snapped onto the outer wall of the vertical section of the branch pipe 31 near the pump body 11, and the secondary pipe 34 and the emergency pipe 33 are parallel to each other and directly opposite each other. Angle plate 35 is slidably snapped onto the inner wall of the vertical section of the branch pipe 31 near the pump body 11; ring plate 36 is coaxially disposed on the side of the angle plate 35 away from the axis of the outlet pipe 1, and the ring plate 36 is snapped onto the inner wall of the branch pipe 31; double-headed spring floating ball 37 is slidably snapped onto the axis of the ring plate 36, and the shaft section of the double-headed spring floating ball 37 passes through the angle plate 35, and the shaft section of the double-headed spring floating ball 37 is snapped onto the angle plate 35; in addition, the diameter of the double-headed spring floating ball 37 at the end near the axis of the outlet pipe 1 is larger than the diameter of the ball at the other end; Reference Figure 9 , Figure 10 and Figure 11 It can be seen that a sealing plate 311 is slidably snapped onto the inner wall of the secondary pipe 34 near the branch pipe 31. An angle ring 312, which is snapped onto the inner wall of the secondary pipe 34, is coaxially arranged on the side of the sealing plate 311 away from the branch pipe 31. A T-section column 313, which is snapped onto the sealing plate 311, is slidably snapped onto the axis of the angle ring 312. An angle wedge plate 314, compatible with the double-headed spring floating ball 37, is snapped onto the end of the T-section column 313 near the branch pipe 31. The secondary pipe 34 is far from the branch pipe 31. A first-stage roller clutch 315 is rotatably installed on the inner wall of one end of the branch pipe 31. A rotating drum 316, which is rotatably fitted to the inner wall of the same first-stage roller clutch 315, is rotatably installed on the inner wall of the auxiliary pipe 34 away from the branch pipe 31 via a mounting bracket. The inner wall of the rotating drum 316 is provided with a spiral groove 317. A matching ring 318 is snapped onto the outer wall of the T-section column 313 away from the branch pipe 31. A matching rod 319, which is compatible with the spiral groove 317, is snapped onto the middle position of the outer wall of the matching ring 318. Reference Figure 10 and Figure 11It can be seen that a two-stage roller clutch 321 is snapped onto the outer wall of the end of the rotary drum 316 away from the branch pipe 31, and the two-stage roller clutch 321 is snapped onto the inner wall of the auxiliary pipe 34 through a connector. A gear 322 is snapped onto the outer wall of the end of the two-stage roller clutch 321 away from the branch pipe 31, and a rack 323 that meshes with it is arranged on one side of the gear 322. Reference Figure 1 and Figure 9 It can be seen that the auxiliary pipe 34 and the emergency pipe 33 are connected to the outer pipe 331 by a plug-in snap-fit ​​at the end away from the outlet pipe 1. The inner wall of the outer pipe 331 near the pump body 11 is connected to the corner ball core 332 by a sealing film, and the corner ball core 332 is snap-fitted with the rack 323. The bracket 333 is snap-fitted to the end of the outer pipe 331 away from the pump body 11, and the metering air pump 334 is snap-fitted to the end of the bracket 333 away from the corner ball core 332.

[0036] The process of timely activation of the emergency circuit in the event of a main circuit interruption: Similarly, the double-headed spring floating ball 37 senses the periodic pressure fluctuation inside the fluid in real time and transmits the reverse force of this pressure fluctuation to the corner wedge plate 314. That is, during the periodic axial displacement, the double-headed spring floating ball 37 gradually deepens the relative interaction depth with the corner wedge plate 314. Under the elastic compression of the double-headed spring floating ball 37, the corner wedge plate 314 controls the T-section column 313 to move axially under the support and guidance of the corner ring 312, driving the corresponding ring 318 and the corresponding rod 319. The corresponding rod 319 and the spiral groove 317 generate relative movement. The rotating drum 316 drives the secondary roller clutch 321 to rotate, and the gear 322 meshes with the rack 323. The corner ball core 332 moves towards the quantitative air pump 334 under the control of the rack 323. (During the periodic interruption of pressure fluctuation, when the rotating drum 316 resets, it will not control the gear 322 and the rack 323 to generate reverse meshing. In specific implementation, a spring is set between the sealing plate 311 and the corner ring 312, and the elastic force of the spring provides the rotation driving force to the rotating drum 316.) In specific implementation, by reasonably designing the single supply volume of the quantitative air pump 334 and the relative quantity between the initial position spherical core 332 and the emergency tube 33, the "inclusivity" of the emergency treatment unit 3 is achieved within the range where pressure fluctuations can temporarily disappear or decrease, that is, in the face of pressure fluctuation instability caused by other interfering factors in actual use. When the pressure fluctuation exceeds the reasonable limit range, the cumulative drive of the metering pump 334 covers the reset stroke of the pressure fluctuation diagonal core 332 until the diagonal core 332 is connected to the emergency pipe 33, the emergency water is started and enters the main circuit to continue the pure water preparation, reducing the probability of the occurrence of treatment safety accidents.

[0037] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0038] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A high-precision linkage adjustment device for different pumps, comprising an outlet pipe (1), characterized in that: The outer wall of the water outlet pipe (1) is equipped with a gradient degradation unit (2) in an array, and an emergency treatment unit (3) is provided on the other side of the water outlet pipe (1). The gradient degradation unit (2) includes: One primary pressure stabilizing pipe (21) is attached to the end of the outlet pipe (1) away from the ground surface by a plug-in snap-fit ​​assembly. There are at least two secondary pressure stabilizing pipes (22), which are evenly distributed in an array on one side of the primary pressure stabilizing pipe (21), and the secondary pressure stabilizing pipes (22) are connected to the outlet pipe (1) by snap-fit ​​assembly; in addition, the secondary pressure stabilizing pipes (22) and the primary pressure stabilizing pipes (21) are arranged sequentially along the axial direction of the outlet pipe (1); Angle ring (23) is slidably snapped onto the inner wall of the first-stage pressure stabilizing pipe (21) and the second-stage pressure stabilizing pipe (22) near the axis of the outlet pipe (1); Angle ring (24) is snapped onto the inner wall of the first-stage pressure stabilizing pipe (21) away from the angle ring (23), and simultaneously slidably snapped onto the inner wall of the second-stage pressure stabilizing pipe (22) away from the axis of the outlet pipe (1); The sealing ring (25) is snapped onto the end face of the corner ring (23) facing away from the corner ring (24); The stabilizing rod (26) is installed in a plug-in snap-fit ​​manner at the center of the corner ring (23), and the stabilizing rod (26) and the corner ring (24) are slidably snap-fitted together; in addition, the length of the stabilizing rod (26) located inside the first-stage stabilizing tube (21) is greater than the length of the stabilizing rod (26) located inside the second-stage stabilizing tube (22); A compression spring (27) is snapped onto the outer wall of a pressure-stabilizing rod (26) on the opposite side of the corner ring (23) and the corner ring (24); The oscillating ball (28) is snapped onto one end of the pressure stabilizing rod (26) near the axis of the outlet pipe (1); in addition, the diameter of the oscillating ball (28) is equal to the inner diameter of the pressure stabilizing pipe; The transmission bead (29) is coaxially set inside the first-stage voltage regulator tube (21), and the transmission bead (29) is snapped together with the voltage regulator rod (26).

2. The high-precision linkage adjustment device for different pumps according to claim 1, characterized in that: A connecting pipe (211) is inserted and installed between the outer walls of the primary voltage regulator (21) and the secondary voltage regulator (22), as well as between the outer walls of adjacent secondary voltage regulators (22). A gasket (212) is slidably snapped onto the inner wall of the connecting pipe (211) near the primary voltage regulator (21). A washer (213) is snapped onto the inner wall of the gasket (212) away from the primary voltage regulator (21). A drive shaft (214) is inserted and snapped onto the axial center of the gasket (212) and slidably snapped onto the washer (213). A wedge plate (215) that matches the drive bead (29) is snapped onto the end of the drive shaft (214) near the primary voltage regulator (21). A return spring (216) sleeved on the outer wall of the drive shaft (214) is snapped onto the opposite surfaces of the gasket (212) and the washer (213).

3. A high-precision linkage adjustment device for different pumps according to claim 2, characterized in that: The connecting pipe (211) is fitted with a first-stage tube (221), a second-stage tube (222), and a third-stage tube (223) in sequence along its axial direction. The outer wall of the drive shaft (214) is fitted with a ring sleeve (224) along its axial direction. The number and position of the ring sleeves (224) correspond one-to-one with the number and position of the second-stage voltage regulator tubes (22). A limit end rod (225) is fitted in the middle of the outer wall of the ring sleeve (224). The inner walls of the first-stage tube (221), diode, and transistor are all provided with a snake groove (226). The pitch of the snake groove (226) on the inner walls of the first-stage tube (221), diode, and transistor decreases gradually along the axial direction of the drive shaft (214). The outer walls of the first-stage tube (221), second-stage tube (222), and transistor are fitted with a cam (227) that is compatible with the single-head push rod (233).

4. A high-precision linkage adjustment device for different pumps according to claim 3, characterized in that: The inner wall of the secondary pressure stabilizing pipe (22) facing away from the axis of the outlet pipe (1) is slidably fitted with an inner support ring (231). The inner wall of the secondary pressure stabilizing pipe (22) near the axis of the outlet pipe (1) is fitted with a positioning ring (232). A single-headed push rod (233) is slidably fitted at the center of the positioning ring (232) and fitted with the inner support ring (231). The end of the single-headed push rod (233) near the axis of the outlet pipe (1) is hollow. The inner support ring (231) and the positioning ring (232) are fitted together with a telescopic spring sleeved on the outer wall of the single-headed push rod (233). A corrugated ring (235) is coaxially arranged in the middle of the inner wall of the spring (234) and the corrugated ring (235) is rotatably installed with the inner wall of the secondary pressure stabilizing pipe (22) through a connector. An end ring (236) is snapped onto the outer wall of the single-headed rod (233) near the axis of the outlet pipe (1). An angle ball rod (237) is snapped onto the outer wall of the end ring (236). A movable ring (238) is slidably snapped onto the outer wall of the corrugated ring (235) and is rotatably installed with the angle ring (24).

5. A high-precision linkage adjustment device for different pumps according to claim 4, characterized in that: The inlet end of the outlet pipe (1) is fitted with a pump body (11) via a flange. The pump body (11) near the ground is fitted with a pump base (12) via a mounting seat. The pump body (11) is fitted with a coupling assembly (13) on one end of the shaft. The coupling assembly (13) away from the pump body (11) is fitted with a three-phase asynchronous motor (14). The three-phase asynchronous motor (14) and the pump base (12) are detachably assembled via bolts. The pump body (11) away from the three-phase asynchronous motor (14) is fitted with an inlet pipe (15) via a flange plug-in connection.

6. A high-precision linkage adjustment device for different pumps according to claim 5, characterized in that: The emergency response unit (3) includes: The branch pipe (31) has a cross-section in the shape of a U-shape and is installed in the middle of the outer wall of the outlet pipe (1) on the side away from the ground. An overflow valve (32) is installed in the middle of the inner wall of the horizontal section of the branch pipe (31) by means of a mounting plate; The emergency pipe (33) is installed on the outer wall of the outlet end of the water pipe (1) in a plug-in snap-fit ​​manner, and the emergency pipe (33) is horizontally distributed with respect to the ground. The secondary pipe (34) is installed on the outer wall of the vertical section of the branch pipe (31) near the pump body (11) by a plug-in snap-fit, and the secondary pipe (34) and the emergency pipe (33) are parallel to each other and directly opposite each other; Angle plate (35) is slidably snapped onto the inner wall of the vertical section of the branch pipe (31) near the pump body (11); The ring plate (36) is coaxially set on the side of the corner plate (35) away from the axis of the outlet pipe (1), and the ring plate (36) is snapped and assembled with the inner wall of the branch pipe (31); The double-headed spring floating ball (37) is slidably snapped onto the axis of the ring plate (36), and the shaft section of the double-headed spring floating ball (37) passes through the corner plate (35). The shaft section of the double-headed spring floating ball (37) is snapped onto the corner plate (35). In addition, the diameter of the end of the double-headed spring floating ball (37) near the axis of the water outlet pipe (1) is larger than the diameter of the ball at the other end.

7. A high-precision linkage adjustment device for different pumps according to claim 6, characterized in that: A sealing plate (311) is slidably snapped onto the inner wall of the secondary pipe (34) near the branch pipe (31). An angle ring (312) is coaxially positioned on the side of the sealing plate (311) away from the branch pipe (31) and snapped onto the inner wall of the secondary pipe (34). A T-section column (313) is slidably snapped onto the axial side of the angle ring (312) and snapped onto the same sealing plate (311). An angle wedge plate (314) compatible with a double-headed spring floating ball (37) is snapped onto the end of the T-section column (313) near the branch pipe (31). The secondary pipe (34) is far from the branch pipe (31). A first-stage roller clutch (315) is rotatably installed on the inner wall of one end of the branch pipe (31). A rotating drum (316) that is rotatably installed on the inner wall of the same first-stage roller clutch (315) is mounted on the inner wall of the branch pipe (34) away from the branch pipe (31) via a mounting bracket. A spiral groove (317) is opened on the inner wall of the rotating drum (316). A matching ring (318) is snapped onto the outer wall of the end of the T-section column (313) away from the branch pipe (31). A matching rod (319) that matches the spiral groove (317) is snapped onto the middle position of the outer wall of the matching ring (318).

8. A high-precision linkage adjustment device for different pumps according to claim 7, characterized in that: A two-stage roller clutch (321) is snapped onto the outer wall of the end of the rotating drum (31) away from the branch pipe (31), and the two-stage roller clutch (321) is snapped onto the inner wall of the auxiliary pipe (34) through a connector. A gear (322) is snapped onto the outer wall of the end of the two-stage roller clutch (321) away from the branch pipe (31), and a rack (323) meshing with it is provided on one side of the gear (322).

9. A high-precision linkage adjustment device for different pumps according to claim 8, characterized in that: The auxiliary pipe (34) and the emergency pipe (33) are connected to an external pipe (331) by a plug-in snap-fit ​​at the end away from the outlet pipe (1). The inner wall of the external pipe (331) near the pump body (11) is fitted with a corner ball core (332) by a sealing film. The corner ball core (332) is snap-fitted with the rack (323). The end of the external pipe (331) away from the pump body (11) is fitted with a bracket (333). The end of the bracket (333) away from the corner ball core (332) is fitted with a metering air pump (334).

Images