Eccentric water distributor and anti-blocking assembly thereof

Abstract

The invention relates to the technical field of oil field water distributors, and discloses an eccentric water distributor and an anti-blocking assembly thereof.The eccentric water distributor comprises the anti-blocking assembly and a shell, the shell comprises an inner pipe and an upper outer pipe, a plurality of blind holes are formed in the upper surface of the inner pipe, and a vibration assembly used for generating vibration is arranged in each blind hole; a plurality of nozzles are arranged on the bottom surface of the upper outer pipe, a plurality of water spraying grooves are formed in the inner wall of the inner pipe, the inner wall of each water spraying groove is an inclined plane, and a pressure valve is arranged in each water spraying groove; through the mutual cooperation of the spray head and the water spray tank, two streams of opposite water flow can be generated, the two streams of water flow collide together, the inner wall of the cavity collapses firstly to form bubble interception, a rapid jet flow liquid column is generated in the center, and jet flow and collapse of the cavity can generate strong impact and cleaning effects on the inner wall of the cavity; therefore, the situation that after water injection is completed, part of sundries can flow back into the eccentric water distributor along with water, subsequent water is evaporated to form cakes, and a water conveying opening is prone to being blocked is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield water distributors, in particular to an eccentric water distributor and an anti-blocking component thereof. Background Art

[0002] The eccentric stratified water injection technology occupies a dominant position in the stratified water injection work of my country's oil development due to its technical advantages such as convenient testing and catching, high process success rate, no limit on the number of stages and no influence on the water absorption profile test. The eccentric water distributor has been widely used in the stratified testing of injection wells and stratified water injection sites. It can realize stratified quantitative water injection according to the water absorption capacity of different oil layers, thereby optimizing the water injection effect of the oil field.

[0003] The Chinese patent with publication number CN103982164A discloses a concentric adjustable eccentric valve water distributor, which has an outer tube, a positioning sleeve is arranged in the outer tube, a transition sleeve concentric with the outer tube is arranged below the positioning sleeve, the transition sleeve is connected to a linear displacement mechanism via a gear transmission group, an adjustable eccentric valve is connected to the lower part of the linear displacement mechanism, the gear transmission group is formed by a large gear and a small gear meshing, the large gear is connected to the lower end of the transition sleeve, a thread is arranged at the center of the small gear, and the linear displacement mechanism is connected to the outer tube. The displacement mechanism is composed of a shaft and a guide sleeve. The upper end of the shaft is provided with a thread on the outside so as to screw with the thread of the pinion. The lower end of the shaft is connected to the ceramic valve core of the adjustable eccentric valve. The guide sleeve is arranged to surround the outer circumference of the shaft. Although this device can reduce the diameter of the valve and improve the problem of large flow loss of the valve caused by the large diameter and long circumference of the valve, during the water injection process of the oil field, due to the poor quality of the injected water, scale will form in the pipeline after long-term accumulation, and the scale will block the water distributor and affect its normal operation.

[0004] The Chinese patent with publication number CN118407740A discloses an eccentric water distributor, including a main cylinder, one end of the main cylinder is provided with a water inlet pipe, and the other end of the main cylinder is provided with a water outlet pipe, a filter screen is installed inside the water inlet pipe, the filter screen is a cylindrical structure, and a driving assembly is provided at the front end of the water inlet pipe, the driving assembly includes a collar, the collar is wrapped around the periphery of the filter screen, the periphery of the filter screen is equidistantly fixed with a metal plate, and the collar is provided with a movable groove at a position corresponding to the metal plate, and the collar slides around the The metal plate connected to the filter is fitted with the outer wall of the filter, and an insert plate is fixed at an equal distance at the front end of the ring, and the insert plate can be slidably inserted into the metal plate, and a pressure ring is fixed at the other end of the insert plate, and the pressure ring can be slidably inserted into the water inlet pipe, an air bag is provided on the outer surface of the water inlet pipe, and the air bag is transmission-connected to the pressure ring, an axle rod is provided at the center of the pressure ring, and the axle rod slides and seals through the filter. Although the device can filter out debris in the water and prevent blockage, it cannot clean the water injection port, thereby affecting the water injection efficiency.

[0005] When the eccentric water distributor is injecting water into the oil field, due to the poor quality of the injected water, scale will form in the pipe after a long period of accumulation. The scale will block the water distributor and affect its normal operation. At the same time, rust will form on the inner wall of the pipe when water flows through it for a long time. Most of the rust adheres to the inner wall, which can affect the transmission of water flow and even cause blockage in severe cases. The water injection port is in contact with the outside world. After the water injection is completed, some debris will flow back into the eccentric water distributor with the water. After the water evaporates, it will form lumps, which can easily cause blockage of the water inlet. Summary of the invention

[0006] The object of the present invention is to provide an eccentric water distributor and an anti-blocking component thereof to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an eccentric water distributor, comprising an anti-blocking component and a shell, the shell comprising an inner tube and an upper outer tube, the upper surface of the inner tube is provided with a plurality of blind holes, each of the blind holes is provided with a vibration component for generating vibration, the bottom surface of the upper outer tube is provided with a plurality of nozzles, the inner wall of the inner tube is provided with a plurality of water spray grooves, and the inner wall of each water spray groove is inclined, and each of the water spray grooves is provided with a pressure valve.

[0008] By providing an anti-blocking component, the movement trajectory of the water flow can be changed, so that the water flow can rotate and continuously flush the inner wall of the shell, avoiding excessive scale adhesion on the inner wall and affecting the transmission efficiency. By providing a vibration component, intermittent vibration can be generated on the inner wall, and the vibration frequency can be accelerated according to the transmission speed of the water flow to avoid blockage caused by excessive accumulation of debris due to excessive water flow rate. Through the mutual cooperation of the nozzle and the water spray trough, two relatively rushing water flows can be generated, and the two water flows collide with each other. The inner wall of the cavity first collapses to form bubble entrapment, and a fast jet liquid column is generated in the center. The jet and cavity collapse will have a strong impact and cleaning effect on the inner wall of the cavity.

[0009] Preferably, the upper outer tube is arranged at the upper part of the outer side of the inner tube, a plurality of infusion tubes are opened on the bottom surface of the upper outer tube, and the upper ends of the infusion tubes are connected to the blind holes, the cross-section of the infusion tubes is an inverted L shape, and the lower ends of the infusion tubes are connected to the upper end of the nozzle.

[0010] Preferably, the vibration assembly includes a moving column, the diameter of the moving column is consistent with the inner diameter of the blind hole, the lower part of the outer surface of the moving column is in contact with the upper end of the infusion tube, and the lower end of the moving column is provided with an impact column, and the diameter of the impact column is smaller than the diameter of the moving column.

[0011] Preferably, a lower outer tube is provided at the lower part of the outer side of the inner tube, a lower joint is provided at the outer side of the lower outer tube, a thread is provided at the lower part of the inner wall of the lower joint, a connecting ring is provided at the upper end of the lower joint, and an annular cavity is provided between the connecting ring and the inner tube.

[0012] Preferably, an upper joint is provided on the upper part of the outer side of the upper outer tube, a thread is provided on the upper part of the inner wall of the upper joint, and a moving ring for sliding up and down is provided on the outer surface of the upper outer tube, the lower end of the moving ring is connected to the upper end of the connecting ring, and the contact surface between the two is an inclined surface.

[0013] Preferably, a spring is sleeved on the outer surface of the upper outer tube, the upper end of the spring is fixedly connected to the bottom surface of the upper joint, and the lower end of the spring is fixedly connected to the bottom surface of the moving ring.

[0014] An anti-blocking component is used for an eccentric water distributor. The anti-blocking component is arranged on the inner side of an inner tube. The anti-blocking component includes two symmetrical positioning rings. The upper surface of the positioning ring located at the upper part is provided with a plurality of through holes, and each through hole corresponds to a blind hole.

[0015] Preferably, the bottom surface of the upper positioning ring contacts the upper surface of the inner tube, the upper surface of the lower positioning ring contacts the bottom surface of the inner tube, and a plurality of scrapers are obliquely provided between the inner side walls of the two positioning rings.

[0016] Technical effects of the present invention:

[0017] 1. The present invention can change the movement trajectory of the water flow by providing an anti-blocking component, so that the water flow can rotate and continuously flush the inner wall of the shell, avoiding excessive scale adhering to the inner wall and affecting the transmission efficiency, so that the cleaned scale can be discharged with the rotating water flow, avoiding excessive scale adsorbed on the inner wall of the pipe due to poor water quality.

[0018] 2. The present invention is provided with a vibration component, which can generate intermittent vibration on the inner wall, and clean the rust attached to the inside by vibration. At the same time, it can accelerate the vibration frequency according to the transmission speed of the water flow, so as to avoid blockage caused by excessive accumulation of debris due to too fast water flow rate. The rust on the inner wall can be scraped off by the rotating scraper to avoid the situation of incomplete cleaning.

[0019] 3. The present invention can generate two oppositely rushing water flows through the cooperation between the nozzle and the water spout, so that the two water flows collide with each other, the inner wall of the cavity collapses first to form bubble entrapment, and a fast jet liquid column is generated in the center. The jet and cavity collapse will have a strong impact and cleaning effect on the inner wall of the cavity, thereby preventing some debris from flowing back into the eccentric water distributor with the water after the water injection is completed, and the subsequent evaporation of water will form lumps, which will easily cause the water inlet to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the inner tube of the present invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the motion ring of the present invention;

[0024] Figure 5 This is a schematic diagram of the positioning ring structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the inner tube structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the inner tube of the present invention;

[0027] Figure 8 It is a schematic diagram of the upper outer tube structure of the present invention.

[0028] In the figure: 1. shell; 101. inner tube; 102. upper outer tube; 103. blind hole; 104. nozzle; 105. water spray trough; 106. infusion tube; 107. lower outer tube; 108. lower joint; 109. connecting ring; 110. cavity; 111. upper joint; 112. moving ring; 113. spring; 2. vibration component; 201. moving column; 202. impact column; 3. positioning ring; 4. through hole; 5. scraper. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] First embodiment

[0031] like Figures 1 to 8An eccentric water distributor shown includes an anti-blocking component and a shell 1. The anti-blocking component can use water flow as power to clean the inside of the shell 1 in real time to avoid blockage caused by excessive accumulation of debris in the water flow during water distribution. The shell 1 can effectively protect the internal components to prevent the components from being damaged or broken by external impact. The shell 1 includes an inner tube 101 and an upper outer tube 102. The inner tube 101, the upper outer tube 102 and the lower outer tube 107 are an integrated structure, which can form a complete water delivery channel to avoid overflow of water during transportation. A plurality of blind holes 103 are provided on the upper surface of the inner tube 101. When water flows through the blind hole 103 and hits the vibration component 2, the vibration component 2 can drop quickly and hit the bottom wall of the blind hole 103 quickly, causing the inner tube 101 to vibrate to a certain extent, thereby preventing some debris from adhering to the inner wall of the inner tube 101 during water transmission, and gradually accumulating to cause blockage or affect the water transmission efficiency. Each blind hole 103 is provided with a vibration component 2 for generating vibration. By providing the vibration component 2, intermittent vibration can be generated on the inner wall, and the vibration frequency can be accelerated by following the transmission speed of the water flow, thereby preventing blockage caused by excessive accumulation of debris due to excessive water flow.

[0032] The vibration component 2 includes a moving column 201, the diameter of which is consistent with the inner diameter of the blind hole 103. The moving column 201 can seal the blind hole 103. Under the impact of the water flow, the moving column 201 can drop rapidly, so that the upper end of the infusion tube 106 is opened, so that the water flow can enter the infusion tube 106 through the blind hole 103 and be sprayed out from the nozzle 104 to form a new water flow. The lower part of the outer surface of the moving column 201 is in contact with the upper end of the infusion tube 106. The lower end of the moving column 201 is provided with an impact column 202, and the diameter of the impact column 202 is smaller than the diameter of the moving column 201. By providing the impact column 202, when the moving column 201 drops to the lowest position, there is still a certain space below the blind hole 103 to prevent the internal gas of the space from being compressed and the air pressure is increased, so that the impact column 202 cannot hit the inner bottom wall of the blind hole 103, and thus vibration cannot be generated.

[0033] The upper outer tube 102 is arranged at the upper part of the outer side of the inner tube 101, and a plurality of infusion tubes 106 are opened on the bottom surface of the upper outer tube 102, and the upper end of the infusion tube 106 is connected with the blind hole 103, and the infusion tube 106 can connect the blind hole 103 and the cavity 110, so that the water flows into the cavity 110 through the blind hole 103 and the infusion tube 106, thereby achieving the purpose of water flow transmission, and the cross-section of the infusion tube 106 is an inverted L shape, and the lower end of the infusion tube 106 is connected with the upper end of the nozzle 104, and the lower part of the outer side of the inner tube 101 is provided with a lower outer tube 107, and the outer side of the lower outer tube 107 is provided with a lower joint 108, and the lower part of the inner wall of the lower joint 108 is provided with a thread, which can be spliced ​​with other pipes through the thread, so that it is more convenient to assemble, and at the same time, a sealing ring can be added at the connection to avoid the situation where gaps cause water overflow.

[0034] A connecting ring 109 is provided at the upper end of the lower joint 108, and an annular cavity 110 is provided between the connecting ring 109 and the inner tube 101. A certain amount of water flow can be stored inside the cavity 110, and the water injection amount can be adjusted according to the amount of water flow. The more water flow there is inside the cavity 110, the larger the gap between the moving ring 112 and the connecting ring 109, and the larger the water injection amount. At the same time, since the sprinkler 104 adopts an intermittent water spraying method, the water flow inside the cavity 110 is always changing, and the size of the gap between the moving ring 112 and the connecting ring 109 is constantly changing. When the gap becomes smaller, the spraying distance can be increased under the action of pressure to avoid the situation of inadequate spraying. When the gap becomes larger, the water injection amount can be increased to avoid the situation of unsaturation.

[0035] An upper joint 111 is provided at the upper part of the outer side of the upper outer tube 102. The upper part of the inner wall of the upper joint 111 is provided with threads, which can be spliced ​​with other pipes through the threads, making it more convenient to assemble. At the same time, a sealing ring can be added at the connection to avoid water overflow caused by gaps. The outer surface of the upper outer tube 102 is provided with a moving ring 112 for sliding up and down. The lower end of the moving ring 112 is connected to the upper end of the connecting ring 109, and the contact surfaces of the two are inclined. The moving ring 112 is spliced ​​with the connecting ring 109 in a permanent state, which is a closed state. When the water flow inside the cavity 110 increases, the upper moving ring 112 is lifted up, so that the moving ring 112 and the connecting ring 109 are A gap appears between the upper and lower parts, which is in an open state at this time. Water can be effectively injected into the position. At the same time, under the action of the inclined surface, the direction of water injection can be changed, so that the water is sprayed upward to increase the coverage area of ​​the spraying and avoid the situation of insufficient coverage. The outer surface of the upper outer tube 102 is sleeved with a spring 113, the upper end of the spring 113 is fixedly connected to the bottom surface of the upper joint 111, and the lower end of the spring 113 is fixedly connected to the bottom surface of the moving ring 112. When the moving ring 112 rises, the spring 113 can be compressed to store energy. When the rising force disappears, the moving ring 112 can be restored to its original position under the action of elasticity, thereby achieving the purpose of resetting.

[0036] The bottom surface of the upper outer tube 102 is provided with a plurality of nozzles 104, and the inner wall of the inner tube 101 is provided with a plurality of water spraying grooves 105, and the inner wall of each water spraying groove 105 is inclined, each nozzle 104 sprays in a counterclockwise direction, and each water spraying groove 105 sprays in a clockwise direction, thereby forming two streams of water in opposite directions. When the two streams of water collide with each other, the inner wall of the cavity 110 collapses first to form bubble entrapment, and a rapid jet liquid column is generated at the collision position, and the jet and cavity collapse can effectively clean the cavity 110. The inner wall has a strong cleaning effect. A pressure valve is provided inside each water spray trough 105. Under the action of the pressure valve, the water flow at the nozzle 104 can preferentially enter the cavity 110, so that the pressure inside the cavity 110 rises, and the upper moving ring 112 is lifted up to form a gap, so that the water flow can initially spray the water through the gap to achieve the purpose of initial water injection. When the water flow inside the cavity 110 is continuously discharged, the internal pressure of the cavity 110 can drop sharply, avoiding the internal pressure of the cavity 110 being too high to open the pressure valve.

[0037] A blocking prevention component is provided, which can change the motion trajectory of water flow, so that the water flow can rotate and continuously flush the inner wall of the shell 1, so as to avoid excessive scale adhering to the inner wall and affecting the transmission efficiency. The blocking prevention component is used for an eccentric water distributor, and the blocking prevention component is arranged on the inner side of an inner tube 101. The blocking prevention component can change the motion trajectory of water flow, so that the water flow can rotate and continuously flush the inner wall of the shell 1, so as to avoid excessive scale adhering to the inner wall and affecting the transmission efficiency. The blocking prevention component includes two symmetrical positioning rings 3, and the two positioning rings 3 can constrain the position of the blocking prevention component to the inner wall of the inner tube 101, so that the inner wall of the inner tube 101 can be cleaned by the blocking prevention component, so as to avoid debris adhering to the inner wall surface of the inner tube 101. The upper surface of the positioning ring 3 located at the upper part is provided with a plurality of through holes 4, and each through hole 4 corresponds to a blind hole 103. The water flow can enter the blind hole 103 through the through hole 4, and the vibration component 2 is thrusted by the impact of the water flow to make it vibrate, and the inner tube 101 is further cleaned by vibration.

[0038] The bottom surface of the upper positioning ring 3 contacts the upper surface of the inner tube 101, and the upper surface of the lower positioning ring 3 contacts the bottom surface of the inner tube 101. A plurality of scrapers 5 are obliquely arranged between the inner side walls of the two positioning rings 3. When water flows through the scraper 5, boundary layer separation is formed on the surface of the scraper 5 to generate eddy currents. The eddy currents can generate lateral force on the scraper 5, causing the scraper 5 to rotate and affecting the movement trajectory of the water flow, so that the inner wall of the inner tube 101 can be preliminarily cleaned by the water flow. When the water flow impacts multiple scrapers 5, the increase in fluid velocity will cause the pressure to decrease, forming dynamic pressure. The dynamic pressure acts on the scraper 5 to generate a lateral force to push the scraper 5 to rotate, so that the inner wall of the inner tube 101 can be cleaned by the rotating multiple scrapers 5.

[0039] In actual use, the upper joint 111 and the lower joint 108 are respectively spliced ​​with the pipe through threads to form a whole, and the whole is transported to a suitable location, the upper end of the pipe is connected to an external water pump, and the water pump is started to allow water to flow through the pipe into the eccentric water distributor in sequence.

[0040] When water flows into the eccentric water distributor, it first flows into the upper outer tube 102, so that the water can contact the upper moving ring 112, and part of the water can directly enter the through hole 4. At this time, the lower end of the through hole 4 and the upper end of the blind hole 103 overlap, so that part of the water can enter the blind hole 103 through the through hole 4, so that the moving column 201 descends, the upper end of the infusion tube 106 is opened, and the cavity 110 is injected with water through the nozzle 104, thereby adopting the method of early water injection to avoid the need to fill the cavity 110 before spraying water to the outside, which affects the overall water injection efficiency.

[0041] When the water flows into the inner tube 101 through the upper outer tube 102, part of the water flow can directly hit the scraper 5. When the water flows through the scraper 5, a boundary layer separation will be formed on the surface of the scraper 5, generating an eddy current. The eddy current can generate a lateral force on the scraper 5, causing the scraper 5 to rotate and affecting the movement trajectory of the water flow, causing it to generate a certain vortex. Under the action of the vortex, the water flow can continuously flush the inner wall of the shell 1, so as to achieve the purpose of preliminary cleaning of scale and prevent scale from affecting the transmission efficiency of the water flow. At the same time, under the continuous impact of the water flow, the increase in the speed of the fluid will cause the pressure to decrease, forming a dynamic pressure. The dynamic pressure acts on the scraper 5, which can generate a lateral force, pushing the scraper 5 to drive the two positioning rings 3 to perform a circular motion along the trajectory of the inner tube 101, so that some stubborn debris in the inner tube 101 can be cleaned through the scraper 5 that continuously moves in a circular motion, avoiding the situation where the cleaning is not in place.

[0042] When the positioning ring 3 located at the upper part rotates along with the scraper 5 , part of the water flow can enter the through hole 4 .

[0043] When the through hole 4 and the blind hole 103 overlap, under the action of water pressure, the water flow can quickly enter the blind hole 103. Under the impact of the water flow, the moving column 201 drives the impact column 202 to quickly descend, so that the impact column 202 instantly hits the inner bottom wall of the blind hole 103, thereby generating vibration from the inside of the inner tube 101. The debris attached to the inner wall of the inner tube 101 is vibrated and detached through the vibration, so that the debris can be discharged in the direction of the water flow, avoiding the situation where excessive accumulation of debris causes blockage or affects the water flow transmission rate. When the moving column 201 descends rapidly, it can compress the space below to store energy, generate a resetting elastic force, and prepare for subsequent resetting. When 201 moves to the lowest position, the upper end of the moving column 201 passes over the upper end of the infusion tube 106, so that the upper end of the infusion tube 106 is opened, so that the water flow can enter the infusion tube 106 through the blind hole 103 and be sprayed out from the nozzle 104, adding water to the cavity 110. When the water source inside the cavity 110 gradually increases, the upper moving ring 112 can be lifted up, so that a gap appears between the moving ring 112 and the connecting ring 109, so that the water source can be injected through the gap, thereby achieving the purpose of preliminary water injection. When the water flow inside the cavity 110 is continuously discharged, the internal pressure of the cavity 110 can drop sharply, avoiding the internal pressure of the cavity 110 being too high to open the pressure valve.

[0044] When the through hole 4 and the blind hole 103 are offset, the injection of water flow can be cut off, breaking the balance between air pressure and water pressure. Under the action of the air pressure below, the moving column 201 gradually moves upward, so that the impact column 202 is away from the inner bottom wall of the blind hole 103 to prepare for the next vibration. Then the upper end of the infusion tube 106 is closed again to cut off the water flow entering the infusion tube 106, thereby stopping the injection of water into the cavity 110 through the nozzle 104. Since the injection of water source in the cavity 110 stops, the pressure drops. Under the action of the spring 113, the moving ring 112 gradually moves downward, and the gap between the moving ring 112 and the connecting ring 109 becomes smaller, thereby reducing the spraying amount, so that the position where water needs to be sprayed at this moment can quickly absorb the water, avoiding the situation of excessive water caused by long-term quantitative transmission of water.

[0045] When the through hole 4 and the blind hole 103 overlap again, the water flow can impact the moving column 201 again, causing the impact column 202 to impact again and generate vibration, thereby continuously overlapping and misaligning the through hole 4 and the blind hole 103, so that the impact column 202 can continuously move up and down, generate vibration, and vibrate to clean the debris inside the pipeline. The vibration frequency can be accelerated as the transmission speed of the water flow increases, avoiding the situation where the water flow rate is too fast and the debris increases suddenly, and the accumulation is too much and the blockage occurs. At the same time, the nozzle 104 adopts an intermittent water spraying method, which can continuously change the water flow entering the cavity 110. When the water flow increases, the opening of the water spraying position can be enlarged, so that the water spraying amount is increased to avoid insufficient water spraying. When the water flow decreases, the opening of the water spraying position can be reduced, and the diameter of the sprayed water column is reduced, thereby increasing the pressure, and increasing the position where the water flow is sprayed, avoiding the situation where the water is not sprayed in place.

[0046] When the water pressure inside the inner tube 101 reaches a threshold value, multiple pressure valves can be opened to allow the water to enter the water spray trough 105 through the pressure valves. Under the constraint of the water spray trough 105, a water flow in a clockwise direction is generated. Under the cooperation of the nozzle 104 and the water spray trough 105, the two water flows can collide with each other in the cavity 110. The inner wall of the cavity 110 collapses first to form bubble entrapment, and a fast jet liquid column is generated at the collision position. The jet liquid column hits the inner wall of the cavity 110 to produce a strong cleaning effect, and the debris on the inner wall of the cavity 110 is cleaned. At the same time, when the force disappears, the collapsed position will be reset, generating a certain vibration, and the cleaning effect will be increased again to avoid incomplete cleaning. Under the mutual impact of the two water flows, the internal pressure of the cavity 110 suddenly increases, and the rising distance of the moving ring 112 is increased again, so that the gap between them is increased again, and the water spray volume is increased again to avoid insufficient water spray volume.

[0047] Through the cooperation between the nozzle 104 and the water spray trough 105, two opposite water flows can be generated, and the two water flows collide with each other. The inner wall of the cavity 110 collapses first to form bubble entrapment, and a fast jet liquid column is generated in the center. The jet and cavity collapse will have a strong impact and cleaning effect on the inner wall of the cavity 110.

[0048] Furthermore, when the nozzle 104 is unable to inject water again due to the misalignment of the through hole 4 and the blind hole 103 above, the water flow inside the cavity 110 is reduced. Since the counterclockwise water flow is reduced, a clockwise water flow can be generated under the action of the water spray trough 105 and enter the cavity 110, thereby driving the water flow inside the cavity 110 to perform a circular motion, gradually increasing its movement speed and the centrifugal force, thereby increasing the impulse of the injected water flow and covering a longer distance, thereby achieving a better water injection effect.

[0049] When the nozzle 104 is filled with water again due to the overlap of the through hole 4 and the blind hole 103 above, an opposite water flow is generated again through the nozzle 104. Since the clockwise water flow power is larger at this time, when the two water flows collide with each other, the impact is greater, so that the splashing water flow hitting the inner wall of the cavity 110 has a greater impact, which can be cleaned more effectively. At the same time, the impact is larger at this time, which can move the moving column 201 to the uppermost end, clean up the debris on the moving path, and avoid jamming during resetting.

[0050] The main functions achieved by the present invention are: by providing an anti-blocking component, the movement trajectory of the water flow can be changed, so that the water flow can rotate and continuously flush the inner wall of the shell 1, avoiding excessive scale adhesion on the inner wall and affecting the transmission efficiency; by providing a vibration component 2, intermittent vibration can be generated on the inner wall, and at the same time, the vibration frequency can be accelerated according to the transmission speed of the water flow, avoiding blockage caused by excessive accumulation of debris due to excessive water flow rate; through the mutual cooperation of the nozzle 104 and the water spray trough 105, two relatively rushing water flows can be generated, and the two water flows collide with each other, the inner wall of the cavity first collapses to form bubble entrapment, and a fast jet liquid column is generated in the center, and the jet and cavity collapse will have a strong impact and cleaning effect on the inner wall of the cavity 110.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An eccentric water distributor, comprising an anti-blocking component and a housing (1), characterized in that: The shell (1) comprises an inner tube (101) and an upper outer tube (102); a plurality of blind holes (103) are provided on the upper surface of the inner tube (101); a vibration component (2) for generating vibration is provided inside each of the blind holes (103); a plurality of spray heads (104) are provided on the bottom surface of the upper outer tube (102); a plurality of water spray grooves (105) are provided on the inner wall of the inner tube (101); the inner wall of each water spray groove (105) is inclined; and a pressure valve is provided inside each of the water spray grooves (105).

2. An eccentric water distributor according to claim 1, characterized in that: The upper outer tube (102) is arranged at the upper part of the outer side of the inner tube (101); a plurality of infusion tubes (106) are provided on the bottom surface of the upper outer tube (102); the upper ends of the infusion tubes (106) are connected to the blind holes (103); the cross-section of the infusion tubes (106) is in an inverted L shape; and the lower end of the infusion tubes (106) is connected to the upper end of the nozzle (104).

3. An eccentric water distributor according to claim 2, characterized in that: The vibration component (2) comprises a moving column (201), the diameter of the moving column (201) is consistent with the inner diameter of the blind hole (103), the lower part of the outer surface of the moving column (201) is in contact with the upper end of the infusion tube (106), and the lower end of the moving column (201) is provided with an impact column (202), and the diameter of the impact column (202) is smaller than the diameter of the moving column (201).

4. The eccentric water distributor according to claim 1, characterized in that: A lower outer tube (107) is provided at the lower portion of the outer side of the inner tube (101), a lower joint (108) is provided at the outer side of the lower outer tube (107), a thread is provided at the lower portion of the inner wall of the lower joint (108), a connecting ring (109) is provided at the upper end of the lower joint (108), and an annular cavity (110) is provided between the connecting ring (109) and the inner tube (101).

5. An eccentric water distributor according to claim 4, characterized in that: An upper joint (111) is provided at the upper portion of the outer side of the upper outer tube (102), and a thread is provided at the upper portion of the inner wall of the upper joint (111). A moving ring (112) for sliding up and down is provided on the outer surface of the upper outer tube (102), and the lower end of the moving ring (112) is connected to the upper end of the connecting ring (109), and the contact surface between the two is an inclined surface.

6. An eccentric water distributor according to claim 5, characterized in that: A spring (113) is sleeved on the outer surface of the upper outer tube (102); the upper end of the spring (113) is fixedly connected to the bottom surface of the upper joint (111); and the lower end of the spring (113) is fixedly connected to the bottom surface of the moving ring (112).

7. An anti-blocking component, which is used for an eccentric water distributor, and is arranged on the inner side of an inner tube (101). The anti-blocking component includes two symmetrical positioning rings (3), and the upper surface of the positioning ring (3) located at the upper part is provided with a plurality of through holes (4), and each through hole (4) corresponds to a blind hole (103).

8. The anti-blocking assembly according to claim 7, characterized in that: The bottom surface of the upper positioning ring (3) contacts the upper surface of the inner tube (101), the upper surface of the lower positioning ring (3) contacts the bottom surface of the inner tube (101), and a plurality of scrapers (5) are obliquely provided between the inner side walls of the two positioning rings (3).

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