A valve for water conservancy and hydropower

Abstract

The present invention relates to the technical field of valve equipment, and discloses a valve for water conservancy and hydropower, including a valve body, a valve body and an actuator, wherein flanges are provided at both ends of the valve body, the valve body is arranged in the valve body and coaxially arranged, the actuator includes a valve body shaft, the valve body shaft passes through the valve body and is fixedly connected to the valve body, and also includes a mounting seat, a hydraulic cylinder is provided on the bottom end surface inside the mounting seat, and also includes a counterweight rotating shaft sleeve, the counterweight rotating shaft sleeve is coaxial with the valve body shaft, the counterweight rotating shaft sleeve is connected to the output end of the hydraulic cylinder, and also includes a counterweight block, the counterweight block is connected to the counterweight rotating shaft sleeve through a connecting rod, and also includes a connecting sleeve, which is arranged between the mounting seat and the valve body, and a de-impurity module is also provided in the valve body. The present invention filters the water flowing through the valve by installing the de-impurity module in the valve, thereby reducing impurities in the water entering the hydropower unit, reducing the damage of the impurities in the water to the blades of the hydropower unit during power generation, and extending the service life of the hydropower unit.

Description

Technical Field

[0001] The invention relates to the technical field of valve equipment, in particular to a valve for water conservancy and hydropower. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc., especially in the water conservancy and hydropower industries. The main valve in the turbine inlet valve device is installed at the turbine inlet (upstream) to cut off the water flow and provide reliable guarantees for the shutdown and maintenance of the unit. After the generator set of the hydropower station has been working for a period of time, or when a unit of the hydropower station fails and needs to be repaired, in order not to affect the continued operation of other units, it is necessary to temporarily cut off the power generation water flow of a unit for maintenance. This requires that each unit be equipped with a valve to meet the needs of closing or opening the working seal of the ball valve in the waterway of a single unit. Therefore, the hydraulic turbine generator set needs valves in many situations: 1. When the generator set is shut down for a long time, the working seal of the ball valve needs to be closed; 2. When the unit is overhauled, the ball valve overhaul seal needs to be closed; 3. When the working seal of the ball valve is replaced, the ball valve overhaul seal needs to be closed; 4. When an accident occurs in the unit and the nozzle cannot be closed, the ball valve working seal needs to be closed. Since the waterway that needs to impulse the turbine of the unit to generate electricity has a relatively large diameter, the corresponding valve is also very large. The existing turbine inlet valve does not have a corresponding impurity removal device, which makes the sediment content in the water entering the turbine unit high. The sediment in the water body impacts the blades of the turbine unit for a long time, which will reduce the service life of the blades. Summary of the invention

[0003] The object of the present invention is to provide a hydraulic and hydropower valve which filters the water flowing through the valve by installing an impurity removal module in the valve, thereby reducing impurities in the water entering the hydropower unit, reducing the damage of impurities in the water to the blades of the hydropower unit during the power generation process, and extending the service life of the hydropower unit, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a valve for water conservancy and hydropower, including a valve body, a valve body and an actuator, flanges are provided at both ends of the valve body, the valve body is cylindrical or polygonal, the valve body is arranged in the valve body and coaxially, the actuator includes a valve body axis, the valve body axis passes through the valve body and is fixedly connected to the valve body, and also includes a mounting seat, the mounting seat is U-shaped, a hydraulic cylinder is provided on the bottom end surface of the mounting seat, the angle between the hydraulic cylinder and the plumb line is 60-80 degrees, and also includes a counterweight rotating shaft sleeve, the counterweight rotating shaft sleeve is coaxial with the valve body axis, the counterweight rotating shaft sleeve is connected to the output end of the hydraulic cylinder, and also includes a counterweight block, the counterweight block is connected to the counterweight rotating shaft sleeve through a connecting rod, and also includes a connecting sleeve, the connecting sleeve is arranged between the mounting seat and the valve body, and a de-impurity module is also provided in the valve body.

[0005] Furthermore, the cross-section of the valve body is polygonal, and the valve body includes a square section. Transition sections are provided at both ends of the square section, and circular pipe sections are provided at the ends away from the transition sections. The circular pipe section is divided into a front water section and a rear water section, and a spiral guide plate is provided in the front water section of the circular pipe section. The impurity removal module includes a filter assembly and a slag discharge assembly. The slag discharge assembly includes a slag discharge bucket. The cavity surrounded by the slag discharge bucket constitutes a slag discharge cavity. The slag discharge bucket is coaxially arranged with the circular pipe section, and the slag discharge bucket is sleeved on the outer side surface of the circular pipe section. A slag discharge bottom plate is provided at the end of the slag discharge bucket away from the spiral guide plate. The slag discharge bottom plate is fan-shaped and its opening faces the flange. A slag inlet baffle is provided at the end of the slag discharge bucket close to the flange. The slag inlet baffle is fan-shaped and its opening faces away from the flange, and the slag inlet baffle is integrally connected to the circular pipe section.

[0006] Furthermore, the slag discharge assembly also includes a slag collecting bucket, which is connected to the slag discharge bucket, and the slag collecting bucket is arranged at the lower end of the outer side surface of the slag discharge bucket. The slag collecting bucket is cylindrical, and a manual slag cleaning valve is provided at the lower end of the slag collecting bucket. The forward water section of the circular pipe section includes a spiral pipe section and a filter pipe section. The flange is provided at one end of the spiral pipe section, and the slag discharge bucket is provided on the outer side surface of the filter pipe section. The slag inlet baffle of the slag discharge bucket is integrally connected with the spiral pipe section, and the spiral pipe section and the filter pipe section are connected by a connecting rod. The gap between the spiral pipe section and the filter pipe section constitutes a slag inlet.

[0007] Furthermore, the filter assembly includes a filter, which is spherical and has a permanent magnet ring on the outside of the filter. It also includes a magnetic bearing, which includes a stator ring. An electromagnet is provided on the inner side of the stator ring. The electromagnet cooperates with the permanent magnet ring. Axial limit magnets are provided on both sides of the electromagnet, respectively. The axial limit magnets wrap the permanent magnet ring. It also includes a waterproof cover, which wraps the magnetic bearing. The waterproof cover uses magnetic conductive material along the center line segment. It also includes a paddle plate, which is provided at the end of the filter near the spiral drainage plate. It also includes a position sensor.

[0008] Furthermore, a groove is provided in the spiral pipe section of the circular pipe section away from the end of the spiral guide plate, and the groove extends toward the end of the spiral guide plate along the central axis. A hydraulic rod is provided at the bottom end of the groove, and a sealing slag baffle plate is provided at one end of the hydraulic rod. The slag collecting barrel includes a slag collecting barrel body, an air inlet nozzle is provided on the outer side surface of the slag collecting barrel body, a piston is provided in the slag collecting barrel body, the piston is slidably matched with the slag collecting barrel body, a damper is provided at the lower end of the piston, the damper is connected to the manual slag cleaning valve, and also includes a pressure gauge provided on the slag collecting barrel body, and the pressure gauge is connected to the cavity between the piston and the manual slag cleaning valve.

[0009] Furthermore, a water baffle is provided in the square section, and the water baffle is hinged to the inner wall of the square section of the valve tube body. There are two water baffles and they are symmetrically arranged along the square section. The radial length of the water baffle is less than the radial length of the square section and greater than half of the radial length of the square section. V-shaped baffle bars are provided on the upper and lower end surfaces inside the square section, and the V-shaped baffle bars are arranged at the end of the water baffle away from the slag discharge assembly.

[0010] Furthermore, a hydraulic assembly is provided on the outside of the square section, and the hydraulic assembly includes a hydraulic pump. The hydraulic pump is provided on the outside of the square section. There are two hydraulic pumps and they are symmetrically arranged along the square section. It also includes a hydraulic telescopic rod. The hydraulic telescopic rod runs through the square section and is connected to the water baffle. The hydraulic telescopic rod is connected to the hydraulic pump.

[0011] Furthermore, the filter assembly also includes a hydraulic motor, which is rod-shaped and arranged coaxially with the filter; an expander is provided near the end of the hydraulic motor on the water baffle, and a hydraulic pipe is provided at the output end of the hydraulic motor. The expander includes a partition arranged on the water baffle, and also includes an expansion hydraulic rod, which is arranged between the opposite surfaces of the two partitions.

[0012] Furthermore, the expansion hydraulic rod includes a hydraulic rod barrel, in which a sleeve is arranged, and also includes a top extension rod, which is T-shaped and slidingly matched with the sleeve. The cavity between the top extension rods constitutes a hydraulic cavity, the hydraulic pipe is connected to the hydraulic cavity, and also includes an inner rod, which slidingly matches with the hydraulic rod barrel.

[0013] Furthermore, a magnetic coupling is provided near the filter end of the hydraulic motor, and the magnetic coupling includes an outer rotor and an inner rotor arranged coaxially, the outer diameter of the inner rotor is smaller than the inner diameter of the outer rotor, and magnets are provided between the opposing surfaces of the outer rotor and the inner rotor. The outer rotor is connected to the filter pin shaft, the rotating shaft of the inner rotor is connected to the paddle plate, the outer rotor is connected to its rotating shaft through the pin shaft, and the rotating shaft of the outer rotor is connected to the input end of the hydraulic motor.

[0014] The present invention has the following beneficial effects over the prior art:

[0015] 1. The water body is spirally advanced by the paddle plate, and then the filter screen is driven to rotate, thereby reducing the water flow rate, so that the impurities in the water body move toward the pipe wall under the action of centrifugal force. At the same time, the filter screen is spherical, making it easier for the impurities in the water body to move toward the pipe wall. Since the waterproof cover adopts magnetic conductive material along the center line segment, the magnetic field generated by the electromagnet enters the pipe wall of the circular pipe segment through the magnetic conductive material of the waterproof cover, so that the electromagnet provides a radial magnetic field for the magnetic bearing and magnetizes the circular pipe segment at the same time, so that the water entering the circular pipe segment is in the magnetic field, so as to achieve the purpose of reducing the corrosion of the valve body 1 by the water body.

[0016] 2. The impurities gathered under the action of gravity are collected through the slag collecting bucket. At the same time, when the valve body is closed urgently, the piston in the slag collecting bucket is pushed to compress the air in the cavity between the piston and the manual slag cleaning valve to do work, thereby reducing the damage of water hammer to the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the valve of the present invention;

[0018] Figure 2 It is a schematic diagram of another embodiment of the valve of the present invention;

[0019] Figure 3 For the present invention Figure 2 AA schematic diagram;

[0020] Figure 4 It is an axonometric view of another embodiment of the valve of the present invention;

[0021] Figure 5 It is a rear right isometric view of the slag discharge assembly of the valve of the present invention;

[0022] Figure 6 It is a front left isometric view of the slag discharge assembly of the valve of the present invention;

[0023] Figure 7 It is a side view of the slag discharge assembly of the valve of the present invention;

[0024] Figure 8 For the present invention Figure 7 BB schematic diagram;

[0025] Fig. 9 It is an axonometric view of another embodiment of the slag discharge assembly of the present invention;

[0026] Fig.10 This is an axonometric view of the spiral drainage plate of the present invention;

[0027] Fig.11 This is a front view of the spiral drainage plate of the present invention;

[0028] Fig.12 It is an axonometric view of the filter assembly of the present invention;

[0029] Fig.13 This is an axonometric view of the water retaining plate of the present invention;

[0030] Fig.14 is a cross-sectional view of the water retaining plate of the present invention;

[0031] Fig.15 is a cross-sectional view of the filter assembly of the present invention;

[0032] Fig.16 For the present invention Fig.15 A partial enlarged schematic diagram of part A;

[0033] Fig.17 This is an axonometric view of the hydraulic motor of the present invention;

[0034] Fig.18 is a schematic diagram of the expander of the present invention;

[0035] Fig.19 For the present invention Fig.18 Schematic diagram of CC.

[0036] In the figure: 1, valve body; 101, square section; 102, round tube section; 103, hydraulic sleeve; 104, slag discharge bucket; 105, hydraulic pump; 106, transition section; 107, slag discharge chamber; 108, hydraulic rod; 109, sealing slag baffle plate; 110, spiral guide plate; 111, filter assembly; 112, magnetic bearing; 113, filter; 114, paddle plate; 115, hydraulic telescopic rod; 116, V-shaped gear bar; 117, water baffle; 118, waterproof cover; 119, axial limit magnet; 120, electromagnet; 121. Stator ring; 2. Flange; 3. Valve body; 4. Valve body shaft; 5. Connecting sleeve; 6. Hydraulic motor; 601. Hydraulic pipe; 7. Counterweight shaft sleeve; 8. Counterweight block; 9. Mounting seat; 10. Hydraulic cylinder; 11. Expander; 1101. Hydraulic chamber; 1102. Hydraulic rod barrel; 1103. Bushing; 1104. Inner rod; 1105. Extending rod; 12. Pressurizing port; 13. Slag collecting barrel; 1301. Air inlet nozzle; 1302. Slag collecting barrel body; 1303. Damper; 1304. Piston; 14. Manual slag cleaning valve. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0038] like Figure 1A water conservancy and hydropower valve shown in the figure includes a valve body 1, a valve body 3 and an actuator, wherein flanges 2 are provided at both ends of the valve body 1, the valve body 1 is cylindrical or polygonal, the valve body 3 is arranged in the valve body 1 and is coaxially arranged, the actuator includes a valve body shaft 4, the valve body shaft 4 passes through the valve body 1 and is fixedly connected to the valve body 3, and also includes a mounting seat 9, the mounting seat 9 is U-shaped, a hydraulic cylinder 10 is provided on the bottom end surface of the mounting seat 9, the angle between the hydraulic cylinder 10 and the plumb line is 60-80 degrees, and also includes a counterweight rotating shaft sleeve 7, the counterweight rotating shaft sleeve 7 is coaxial with the valve body shaft 4, the counterweight rotating shaft sleeve 7 is connected to the output end of the hydraulic cylinder 10, and also includes a counterweight block 8, the counterweight block 8 is connected to the counterweight rotating shaft sleeve 7 through a connecting rod, and also includes a connecting sleeve 5, the connecting sleeve 5 is arranged between the mounting seat 9 and the valve body 1, and a de-impurity module is also provided in the valve body 1.

[0039] In this embodiment, the valve body 1 is penetrated by the valve body shaft 4, that is, the center line of the valve body shaft 4 intersects with the center line of the valve body 1, so that the valve body shaft 4 serves as the axis for the rotation of the valve body 3. At the same time, the valve body shaft 4 is fixedly connected to the valve body 3, so that when the valve body shaft 4 rotates, it drives the valve body 3 to swing in the valve body 1, thereby realizing the opening and closing of the valve body 1, and then the hydraulic cylinder 10 is pressurized through the pressure port 12 on the outer side of the hydraulic cylinder 10, so that the pressure in the cavity between the piston in the hydraulic cylinder 10 and the cylinder floor increases, thereby pushing the piston in the hydraulic cylinder 10 to move upward and pushing the counterweight rotating shaft sleeve 7 to rotate. The counterweight rotating shaft sleeve 7 is pin-connected to the valve body shaft 4, so that the valve body shaft 4 rotates following the rotation of the counterweight rotating shaft sleeve 7. In the initial state, the end face of the valve body 3 is in a vertical state. , and then the valve body 3 rotates with the valve body shaft 4, so that the end face of the valve body 3 changes from a vertical state to a horizontal or inclined state, thereby realizing the opening of the valve; the counterweight shaft sleeve 7 rotates while driving the counterweight block 8 to swing, so that the position of the counterweight block 8 is lifted. When the valve body 1 is closed, the pressure of the pressurized port 12 is removed, and then the counterweight block 8 swings downward under the action of gravity, driving the counterweight shaft sleeve 7 to rotate, so that the end face of the valve body 3 changes from a horizontal or inclined state to a vertical state, thereby realizing the closing of the valve; then in order to reduce the impact of particulate matter in the water body on the blades of the turbine unit, a de-impurity module is installed at the front end of the valve body 3, and the particulate matter in the water is filtered through the de-impurity module, so that relatively clean water enters the turbine unit, thereby extending the service life of the turbine unit blades.

[0040] During operation, the hydraulic cylinder 10 drives the valve body 3 to rotate a corresponding angle, thereby opening the valve body 1, so that external water can enter the turbine unit through the valve body 1. When the water flows through the valve body 1, it is filtered by the impurity removal module, thereby reducing the damage of impurities in the water to the turbine blades. When maintenance is required, the counterweight block 8 is swung downward to drive the counterweight shaft sleeve 7 to rotate, so that the end face of the valve body 3 is changed from a horizontal or inclined state to a vertical state, thereby achieving the closure of the valve.

[0041] In one embodiment, if Figure 2-3 As shown, the cross-section of the valve body 1 is polygonal, the valve body 1 includes a square section 101, transition sections 106 are provided at both ends of the square section 101, flanges 2 are provided at both ends of the valve body 1, the valve body 3 is arranged in the valve body 1 and coaxially, the valve body 3 is plate-shaped, the actuator includes a valve body shaft 4, the valve body shaft 4 passes through the valve body 1 and is fixedly connected to the valve body 3, and also includes a mounting seat 9, the mounting seat 9 is U-shaped, a hydraulic cylinder 10 is provided on the bottom end surface of the mounting seat 9, the angle between the hydraulic cylinder 10 and the plumb line is 60-80 degrees, and also includes a counterweight rotating shaft sleeve 7, the counterweight rotating shaft sleeve 7 is coaxial with the valve body shaft 4, the counterweight rotating shaft sleeve 7 is connected to the output end of the hydraulic cylinder 10, and also includes a counterweight block 8, the counterweight block 8 is connected to the counterweight rotating shaft sleeve 7 through a connecting rod, and also includes a connecting sleeve 5, which is arranged between the mounting seat 9 and the valve body 1, and a de-impurity module is also provided in the valve body 1.

[0042] In this embodiment, the valve body 1 includes a square section 101 and a transition section 106. The transition section 106 transitions from a circular hole to a square hole, so that the water is decelerated when entering the valve body 1, making it easier to filter the water when passing through the impurity removal module.

[0043] In one embodiment, if Figure 4-12 As shown in FIGS. 15-16 , the cross section of the valve body 1 is polygonal, and the valve body 1 includes a square section 101, and transition sections 106 are provided at both ends of the square section 101, and a circular tube section 102 is provided at the far end of the transition section 106, and the circular tube section 102 is divided into a front water section and a rear water section, and a spiral guide plate 110 is provided in the front water section of the circular tube section 102, and the impurity removal module includes a filter assembly 111 and a slag discharge assembly, and the slag discharge assembly includes a slag discharge bucket 104 The cavity surrounded by the slag discharge barrel 104 constitutes a slag discharge cavity 107. The slag discharge barrel 104 is coaxially arranged with the circular pipe section 102. The slag discharge barrel 104 is sleeved on the outer side of the circular pipe section 102. A slag discharge bottom plate is provided at the end of the slag discharge barrel 104 away from the spiral guide plate 110. The slag discharge bottom plate is fan-shaped and its opening faces the flange 2. A slag inlet baffle is provided at the end of the slag discharge barrel 104 close to the flange 2. The slag inlet baffle is fan-shaped and its opening faces away from the flange 2. The slag inlet baffle is integrally connected to the circular pipe section 102.

[0044] like Figure 8 As shown, the slag discharge assembly also includes a slag collecting bucket 13, which is connected to the slag discharge bucket 104, and the slag collecting bucket 13 is arranged at the lower end of the outer side surface of the slag discharge bucket 104. The slag collecting bucket 13 is cylindrical, and a manual slag cleaning valve 14 is provided at the lower end of the slag collecting bucket 13. The forward water section of the circular pipe section 102 includes a spiral pipe section and a filter pipe section, the flange 2 is provided at one end of the spiral pipe section, the slag discharge bucket 104 is provided on the outer side surface of the filter pipe section, the slag inlet baffle of the slag discharge bucket 104 is integrally connected with the spiral pipe section, the spiral pipe section and the filter pipe section are connected by a connecting rod, and the gap between the spiral pipe section and the filter pipe section constitutes a slag inlet.

[0045] like Fig.12 and 15 -16, the filter assembly 111 includes a filter 113, the filter 113 is spherical, a permanent magnet ring is provided on the outer side of the filter 113, and also includes a magnetic bearing 112, the magnetic bearing 112 includes a stator ring 121, an electromagnet 120 is provided on the inner side of the stator ring 121, the electromagnet 120 cooperates with the permanent magnet ring, and axial limit magnets are respectively provided on both sides of the electromagnet 120, the axial limit magnets wrap the permanent magnet ring, and also includes a waterproof cover 118, the waterproof cover 118 wraps the magnetic bearing 112, the waterproof cover 118 uses a magnetic conductive material along the center line segment, and also includes a paddle plate 114, the paddle plate 114 is provided at the end of the filter 113 close to the spiral guide plate 110, and also includes a position sensor.

[0046] In this embodiment, the purpose of filtering and collecting impurities in the water body is achieved by installing a filter assembly 111 and a slag discharge assembly in the circular pipe section 102 at the front end of the square section 101. Specifically, the spiral guide plate 110 is installed in the forward water section of the circular pipe section 102, so that the linear motion of the water body is converted into spiral motion after the water body enters the circular pipe section 102 from the outside, that is, the water body moves in a circle around the pipe while moving along the pipe, and the spirally moving water body moves to the front end surface of the filter assembly 111;

[0047] Since the filter assembly 111 includes a filter 113, a permanent magnet ring is arranged on the outer side of the filter 113, and also includes a magnetic suspension bearing 112, the magnetic suspension bearing 112 includes a stator ring 121, an electromagnet 120 is arranged on the inner side of the stator ring 121, the electromagnet 120 cooperates with the permanent magnet ring, and axial limiting magnets are respectively arranged on both sides of the electromagnet 120, the axial limiting magnets wrap the permanent magnet ring, and also includes a waterproof cover 118, the waterproof cover 118 wraps the magnetic suspension bearing 112, and the waterproof cover 118 is formed along the center line segment The filter 113 is made of magnetic conductive material and also includes a paddle plate 114, which is arranged at the end of the filter screen 113 close to the spiral guide plate 110, and also includes a position sensor, so that the water body moving in the spiral drives the filter screen 113 to rotate under the action of the paddle plate 114, thereby reducing the flow rate of the water body, that is, the water body makes a circular motion at the front end surface of the filter screen 113, so that impurities in the water body move toward the pipe wall under the action of centrifugal force, and at the same time, the filter screen 113 is spherical, so that impurities in the water body are more likely to move toward the pipe wall;

[0048] At the same time, since the waterproof cover 118 uses magnetic conductive material along the center line segment, the magnetic field generated by the electromagnet 120 enters the pipe wall of the circular pipe segment 102 through the magnetic conductive material of the waterproof cover 118, so that the electromagnet 120 can magnetize the circular pipe segment 102 while providing a radial magnetic field for the magnetic suspension bearing 112, so that the water entering the circular pipe segment 102 is in the magnetic field, thereby achieving the purpose of reducing the corrosion of the valve body 1 by the water body. When impurities in the water body move to the pipe wall, they enter the slag discharge chamber 107, and then gather in the slag collecting bucket 13 under the action of gravity, and finally the collected impurities are manually cleaned through the manual slag cleaning valve 14.

[0049] During operation, after the water enters the circular pipe section 102 through the pipeline, the water is rotated under the action of the spiral guide plate 110, so that the water spirals forward. When the spirally advancing water meets the paddle plate 114 of the filter assembly 111, the paddle plate 114 is in an arc knife shape, that is, the paddle plate 114 has an angle with the spirally advancing water. Under the interaction of forces, the filter screen 113 is pushed to rotate, thereby reducing the flow rate of the water. At the same time, the filter screen 113 follows the water to make a circular motion, so that the filter screen 113 makes a circular motion with a smaller angular velocity relative to the water, so that impurities in the water move toward the pipe wall under the action of centrifugal force. At the same time, the filter screen 113 is spherical, which makes it easier for impurities in the water to move toward the pipe wall. When the impurities in the water move to the pipe wall, they enter the slag discharge chamber 107, and then gather in the slag collecting bucket 13 under the action of gravity. Finally, the collected impurities are manually cleaned through the manual slag cleaning valve 14.

[0050] In one embodiment, if Figure 13-14As shown, a groove is provided at the end of the spiral pipe section of the circular pipe section 102 away from the spiral guide plate 110, and the groove extends along the central axis toward the end of the spiral guide plate 110, a hydraulic rod 108 is provided at the bottom end of the groove, a sealing slag baffle plate 109 is provided at one end of the hydraulic rod 108, a hydraulic sleeve 103 is provided on the outside of the circular pipe section 102, and the hydraulic sleeve 103 is connected to each hydraulic rod 108; the slag collecting barrel 13 includes a slag collecting barrel body 1302, an air inlet nozzle 1301 is provided on the outer side of the slag collecting barrel body 1302, a piston 1304 is provided in the slag collecting barrel body 1302, the piston 1304 is slidably matched with the slag collecting barrel body 1302, a damper 1303 is provided at the lower end of the piston 1304, the damper 1303 is connected to the manual slag cleaning valve 14, and also includes a pressure gauge provided on the slag collecting barrel body 1302, and the pressure gauge is connected to the cavity between the piston 1304 and the manual slag cleaning valve 14.

[0051] In this embodiment, by applying pressure to the hydraulic sleeve 103, and because the hydraulic sleeve 103 is connected to each hydraulic rod 108, a sealing slag baffle plate 109 is provided at one end of the hydraulic rod 108, and the hydraulic rod 108 and the sealing slag baffle plate 109 are arranged in a groove in the wall of the circular tube section 102, so that the hydraulic rod 108 pushes the sealing slag baffle plate 109 to extend out from the groove of the wall of the circular tube section 102 and move to the end face of the filter pipe section, thereby realizing the isolation of the slag collecting bucket 13 from the circular tube section 102. In the initial state, the hydraulic rod 108 and the sealing slag baffle plate 109 are both in the groove of the wall of the circular tube section 102, and the slag collecting bucket 13 is connected to the circular tube section 102. When manual slag cleaning is required, the sealing slag baffle plate 109 is moved to the end face of the filter pipe section by the hydraulic rod 108, thereby realizing the isolation of the slag collecting bucket 13 from the circular tube section 102.

[0052] When the valve needs to be closed urgently, the counterweight block 8 swings downward to drive the counterweight rotating shaft sleeve 7 to rotate, so that the end face of the valve body 3 is changed from a horizontal or inclined state to a vertical state, thereby realizing the closing of the valve. At this time, when the valve body 3 is closed quickly, water hammer is easily generated in the valve body 1, causing damage to the valve body 1. In order to reduce the impact of water hammer on the valve body 1, an air inlet nozzle 1301 is provided on the outer side of the slag collecting barrel body 1302, and a piston 1304 is provided in the slag collecting barrel body 1302. The piston 1304 is slidably matched with the slag collecting barrel body 1302, and a damper 1303 is provided at the lower end of the piston 1304. The damper 1303 is connected to the manual slag cleaning valve 14, so that the water pressure generated when the valve is closed compresses the air in the cavity between the piston 1304 and the manual slag cleaning valve 14 by pushing the piston 1304, thereby reducing the damage of the valve body 1 to the valve body 1 by the water hammer.

[0053] During operation, in the initial state, the hydraulic rod 108 and the sealing slag baffle 109 are both in the groove of the pipe wall of the circular pipe section 102, so that the slag collecting bucket 13 is connected with the circular pipe section 102. When it is necessary to clean the slag through the manual slag cleaning valve 14, pressure is applied to the hydraulic sleeve 103, so that the hydraulic rod 108 pushes the sealing slag baffle 109 to extend out from the groove of the pipe wall of the circular pipe section 102 and move to the end face of the filter pipe section, thereby isolating the slag collecting bucket 13 from the circular pipe section 102, and then the slag is cleaned through the manual slag cleaning valve 14. After the slag cleaning is completed, the manual slag cleaning valve 14 is reset, and then the pressure in the hydraulic sleeve 103 is reduced, so that the hydraulic rod 108 pulls the sealing slag baffle 109 from the end in contact with the end face of the filter pipe section back to the groove of the pipe wall of the circular pipe section 102, thereby connecting the slag collecting bucket 13 with the circular pipe section 102.

[0054] Then, when the valve is closed quickly, water hammer is easily generated in the valve body 1, causing damage to the valve body 1. Then, the slag collecting bucket 13 is used as a water hammer eliminator to reduce the damage of the water hammer to the valve body 1. The pressure generated by the water hammer acts on the piston 1304, and then the piston 1304 is pushed to compress the air in the cavity between the piston 1304 and the manual slag cleaning valve 14 to do work, thereby reducing the damage of the water hammer to the valve body 1.

[0055] In one embodiment, if Figure 13-14 As shown, a water baffle 117 is provided in the square section 101, and the water baffle 117 is hinged to the inner wall of the square section 101 of the valve body 1. There are two water baffles 117 and they are symmetrically arranged along the square section 101. The radial length of the water baffle 117 is less than the radial length of the square section 101 and is greater than half of the radial length of the square section 101. V-shaped baffle bars 116 are provided on the upper and lower end surfaces inside the square section 101, and the V-shaped baffle bars 116 are arranged at the end of the water baffle 117 away from the slag discharge assembly.

[0056] A hydraulic assembly is provided on the outside of the square section 101, and the hydraulic assembly includes a hydraulic pump 105. The hydraulic pump 105 is provided on the outside of the square section 101. There are two hydraulic pumps 105 and they are symmetrically arranged along the square section 101. The hydraulic assembly also includes a hydraulic telescopic rod 115. The hydraulic telescopic rod 115 runs through the square section 101 and is connected to the water baffle 117. The hydraulic telescopic rod 115 is connected to the hydraulic pump 105.

[0057] In this embodiment, in order to reduce the water hammer phenomenon, a buffer valve is provided between the impurity removal module and the valve body 3, and the buffer valve includes a water baffle 117, the water baffle 117 is hinged to the inner wall of the square section 101 of the valve body 1, there are two water baffles 117 and they are symmetrically arranged along the square section 101, the radial length of the water baffle 117 is less than the radial length of the square section 101 and is greater than half of the radial length of the square section 101, V-shaped bars 116 are provided on both upper and lower end surfaces inside the square section 101, and the V-shaped bars 116 are provided at the end of the water baffle 117 away from the slag discharge assembly; a hydraulic assembly is provided on the outside of the square section 101, and the hydraulic assembly includes a hydraulic pump 105, the hydraulic pump 105 is provided on the outside of the square section 101, there are two hydraulic pumps 105 and they are symmetrically arranged along the square section 101, and also includes a hydraulic telescopic rod 115, the hydraulic telescopic rod 115 runs through the square section 101 and is connected to the water baffle 117, and the hydraulic telescopic rod 115 is connected to the hydraulic pump 105;

[0058] The hydraulic pump 105 controls the extension and contraction of the hydraulic telescopic rod 115 to open and close the water baffle 117. Since the radial length of the water baffle 117 is less than the radial length of the square segment 101 and greater than half of the radial length of the square segment 101, that is, the two water baffles 117 are V-shaped when closed, so that the water baffle 117 is tightly closed under the action of water pressure, and an external connecting pipe is provided on the outside of the square segment 101 to connect the front and rear cavities of the water baffle 117.

[0059] In one embodiment, if Figure 17-19 As shown, the filter assembly 111 also includes a hydraulic motor 6, which is rod-shaped and coaxially arranged with the filter 113; the water baffle 117 is provided with an expander 11 near the end of the hydraulic motor 6, and the output end of the hydraulic motor 6 is provided with a hydraulic pipe 601, the expander 11 includes a partition arranged on the water baffle 117, and also includes an expansion hydraulic rod, which is arranged between the opposite surfaces of the two partitions.

[0060] The expansion hydraulic rod includes a hydraulic rod barrel 1102, in which a shaft sleeve 1103 is provided, and also includes a top extension rod 1105, which is T-shaped and slidingly matched with the shaft sleeve 1103. The cavity between the top extension rods 1105 constitutes a hydraulic cavity 1101, and the hydraulic pipe 601 is connected to the hydraulic cavity 1101. It also includes an inner rod 1104, which slidingly matches with the hydraulic rod barrel 1102.

[0061] In this embodiment, in order to reduce the leakage of the valve body 1 under the action of water pressure, a hydraulic motor 6 is installed on the back of the filter 113, the input end of the hydraulic motor 6 is fixedly connected to the filter 113, and the rotation of the filter 113 provides power for the hydraulic motor 6. The output end of the hydraulic motor 6 is connected to the expander 11 through the hydraulic pipe 601.

[0062] Since the expander 11 includes a hydraulic rod barrel 1102, a shaft sleeve 1103 is provided in the hydraulic rod barrel 1102, and also includes a push rod 1105, the push rod 1105 is T-shaped, the push rod 1105 and the shaft sleeve 1103 are slidably matched, the cavity between the push rods 1105 constitutes a hydraulic cavity 1101, the hydraulic pipe 601 is connected to the hydraulic cavity 1101, and also includes an inner rod 1104, the inner rod 1104 and the hydraulic rod barrel 1102 are slidably matched, so that when the pressure in the hydraulic cavity 1101 increases, the push rod 1105 is pushed to move outward, and the push rod 1105 moves outward while driving the inner rod 1104 to move outward, thereby pushing the partition connected to the water baffle 117 to move outward, thereby achieving the purpose of opening the water baffle 117.

[0063] In one embodiment, the hydraulic motor 6 is provided with a magnetic coupling near the end of the filter 113, and the magnetic coupling includes an outer rotor and an inner rotor arranged coaxially, the outer diameter of the inner rotor is smaller than the inner diameter of the outer rotor, and magnets are provided between the opposing surfaces of the outer rotor and the inner rotor. The outer rotor is connected to the filter 113 with a pin shaft, the rotating shaft of the inner rotor is connected to the paddle plate 114, the outer rotor is connected to its rotating shaft through a pin shaft, and the rotating shaft of the outer rotor is connected to the input end of the hydraulic motor 6.

[0064] In this embodiment, since the magnetic coupling includes an outer rotor and an inner rotor arranged coaxially, the outer diameter of the inner rotor is smaller than the inner diameter of the outer rotor, magnets are provided between the opposing surfaces of the outer rotor and the inner rotor, the outer rotor is connected to the filter screen 113 with a pin shaft, the rotating shaft of the inner rotor is connected to the paddle plate 114, and the outer rotor is connected to its rotating shaft through a pin shaft, so that the rotation speeds of the paddle plate 114 and the filter screen 113 are different, that is, the paddle plate 114 makes a circular motion relative to the filter screen 113, thereby realizing that the paddle plate 114 is driven to rotate when water flows through the paddle plate 114, and the paddle plate 114 drives the filter screen 113 to rotate through the magnetic coupling. At the same time, the paddle plate 114 also makes a circular motion relative to the filter screen 113, thereby cleaning the filter screen 113, and realizing that the paddle plate 114 provides power for the rotation of the filter screen 113 while cleaning the filter screen 113.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A valve for water conservancy and hydropower, comprising a valve tube, a valve body and an actuator, Features: Flanges are provided at both ends of the valve body, the valve body is polygonal, the valve body is arranged in the valve body and coaxially, the actuator includes a valve body shaft, the valve body shaft passes through the valve body and is fixedly connected to the valve body, and also includes a mounting seat, the mounting seat is U-shaped, a hydraulic cylinder is provided on the bottom end surface inside the mounting seat, a pressurizing port is provided on the outside of the hydraulic cylinder, the angle between the hydraulic cylinder and the plumb line is 60-80 degrees, and also includes a counterweight rotating shaft sleeve, the counterweight rotating shaft sleeve is coaxial with the valve body axis, the counterweight rotating shaft sleeve is connected to the output end of the hydraulic cylinder, and also includes a counterweight block, the counterweight block is connected to the counterweight rotating shaft sleeve through a connecting rod, and also includes a connecting sleeve, the connecting sleeve is arranged between the mounting seat and the valve body, and a de-impurity module is also provided in the valve body; The cross-section of the valve body is polygonal, the valve body includes a square section, transition sections are provided at both ends of the square section, circular tube sections are provided at the ends away from the transition sections, the circular tube sections are divided into a front water section and a rear water section, a spiral guide plate is provided in the front water section of the circular tube section, the impurity removal module includes a filter assembly and a slag discharge assembly, the slag discharge assembly includes a slag discharge bucket, the cavity surrounded by the slag discharge bucket constitutes a slag discharge cavity, the slag discharge bucket is coaxially arranged with the circular tube section, the slag discharge bucket is sleeved on the outer side of the circular tube section, a slag discharge bottom plate is provided at the end of the slag discharge bucket away from the spiral guide plate, the slag discharge bottom plate is fan-shaped and its opening faces the flange, a slag inlet baffle is provided at the end of the slag discharge bucket close to the flange, the slag inlet baffle is fan-shaped and its opening faces away from the flange, and the slag inlet baffle is integrally connected with the circular tube section; The slag discharge assembly also includes a slag collecting bucket, which is connected to the slag discharge bucket. The slag collecting bucket is arranged at the lower end of the outer side of the slag discharge bucket. The slag collecting bucket is cylindrical, and a manual slag cleaning valve is arranged at the lower end of the slag collecting bucket. The forward water section of the circular pipe section includes a spiral pipe section and a filter pipe section. The flange is arranged at one end of the spiral pipe section. The slag discharge bucket is arranged on the outer side of the filter pipe section. The slag inlet baffle of the slag discharge bucket is integrally connected with the spiral pipe section. The spiral pipe section and the filter pipe section are connected by a connecting rod. The gap between the spiral pipe section and the filter pipe section constitutes a slag inlet. The filter assembly includes a filter, which is spherical, and a permanent magnet ring is arranged on the outside of the filter, and also includes a magnetic suspension bearing, which includes a stator ring, and an electromagnet is arranged on the inner side of the stator ring, and the electromagnet cooperates with the permanent magnet ring, and axial limit magnets are respectively arranged on both sides of the electromagnet, and the axial limit magnets wrap the permanent magnet ring, and also includes a waterproof cover, which wraps the magnetic suspension bearing, and the waterproof cover adopts a magnetic conductive material along the center line segment, and also includes a paddle plate, which is arranged at the end of the filter close to the spiral guide plate, and also includes a position sensor; The spiral pipe section of the circular pipe section is provided with a groove away from the end of the spiral guide plate, and the groove extends toward the end of the spiral guide plate along the central axis. A hydraulic rod is provided at the bottom end of the groove, and a sealing slag baffle plate is provided at one end of the hydraulic rod. The slag collecting barrel includes a slag collecting barrel body, an air inlet nozzle is provided on the outer side surface of the slag collecting barrel body, a piston is provided in the slag collecting barrel body, the piston is slidably matched with the slag collecting barrel body, a damper is provided at the lower end of the piston, the damper is connected to the manual slag cleaning valve, and also includes a pressure gauge provided on the slag collecting barrel body, and the pressure gauge is connected to the cavity between the piston and the manual slag cleaning valve.

2. The water conservancy and hydropower valve according to claim 1, Features: A water baffle is provided in the square section, which is hinged to the inner wall of the square section of the valve tube body. There are two water baffles and they are symmetrically arranged along the square section. The radial length of the water baffle is less than the radial length of the square section and greater than half of the radial length of the square section. V-shaped baffle bars are provided on both upper and lower end surfaces inside the square section, and the V-shaped baffle bars are arranged at the end of the water baffle away from the slag discharge assembly.

3. The water conservancy and hydropower valve according to claim 2, Features: A hydraulic assembly is provided on the outside of the square section, and the hydraulic assembly includes a hydraulic pump. The hydraulic pump is provided on the outside of the square section. There are two hydraulic pumps and they are symmetrically arranged along the square section. The hydraulic assembly also includes a hydraulic telescopic rod. The hydraulic telescopic rod runs through the square section and is connected to the water baffle. The hydraulic telescopic rod is connected to the hydraulic pump.

4. The water conservancy and hydropower valve according to claim 3, Features: The filter assembly also includes a hydraulic motor, which is rod-shaped and coaxially arranged with the filter; an expander is provided at the end of the water baffle plate near the hydraulic motor, and a hydraulic pipe is provided at the output end of the hydraulic motor. The expander includes a partition plate arranged on the water baffle plate and an expansion hydraulic rod, which is arranged between the opposite surfaces of the two partition plates.

5. The water conservancy and hydropower valve according to claim 4, Features: The expansion hydraulic rod includes a hydraulic rod barrel, in which a sleeve is arranged, and also includes a jacking rod, which is T-shaped and slidingly matched with the sleeve. The cavity between the jacking rods constitutes a hydraulic cavity, and the hydraulic pipe is connected to the hydraulic cavity. It also includes an inner rod, which slidingly matches with the hydraulic rod barrel.

6. The water conservancy and hydropower valve according to claim 5, Features: The hydraulic motor is provided with a magnetic coupling near the filter end, and the magnetic coupling includes an outer rotor and an inner rotor arranged coaxially, the outer diameter of the inner rotor is smaller than the inner diameter of the outer rotor, and magnets are provided between the opposing surfaces of the outer rotor and the inner rotor. The outer rotor is connected to the filter pin shaft, the rotating shaft of the inner rotor is connected to the paddle plate, the outer rotor is connected to its rotating shaft through the pin shaft, and the rotating shaft of the outer rotor is connected to the input end of the hydraulic motor.

Images