Rotary swing self-locking type funnel ball collecting net

Abstract

The invention discloses a rotary swing self-locking type funnel ball collecting net, which belongs to the field of thermodynamic cycle cleaning and is characterized in that a rotating shaft is arranged in a round pipe in a penetrating manner, two ends of the rotating shaft are connected with the round pipe through sealing bearings, first pin shafts are symmetrically arranged on the inner pipe wall of the round pipe up and down, and the funnel ball collecting net is rotated to limit and rotate on the inner pipe wall of the round pipe through the pin shafts; a rotating shaft is horizontally arranged on the rotating shaft, a cooperative rotating and swinging mechanism is horizontally arranged on the rotating shaft, the cooperative rotating and swinging mechanism drives a rotating funnel ball collecting net to be opened and closed, a ball collecting pipe is embedded in a round pipe, and the rotating funnel ball collecting net abuts against the ball collecting pipe in the ball collecting state. And the technical problem that the rubber balls cannot be quickly discharged due to the formation of vortex is solved, and the method is mainly applied to thermodynamic cycle cleaning.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal cycle cleaning, and in particular relates to a rotary swing self-locking funnel ball collecting net. Background Art

[0002] The circulating water rubber ball system is mainly composed of rubber ball pumps and ball collection nets. Its working principle is that the rubber ball pump transports the rubber balls to the circulating water inlet of the condenser, and then the circulating water drives the rubber balls into the copper tube of the condenser. In the copper tube, the rubber balls play a cleaning role, remove sludge and scale, and effectively slow down the deposition rate of scale. The rubber balls that have completed the cleaning task flow out of the copper tube and enter the circulating water pipeline at the outlet of the condenser. They are collected at the ball collection net of the pipeline and then return to the inlet of the rubber ball pump, thus realizing the circulation work.

[0003] In the power plant unit, after the rubber ball cleaning system was put into operation, the rubber balls could not be effectively circulated. A large number of rubber balls were blocked at the rubber ball outlet of the ball collection net. The rubber balls in front blocked the normal flow of the rubber balls behind, causing many rubber balls to be stuck on the ball collection net and unable to continue to circulate and clean the condenser copper tubes. This problem directly led to the acceleration of copper tube scaling, which in turn greatly reduced the heat exchange efficiency of the condenser.

[0004] The impact force of the water flow on the rubber ball at the ball collection net can be decomposed into a force perpendicular to the grid and a force parallel to the grid. Since there is water resistance at the grid and the water flow is restricted by the pipe wall, the greater the water resistance, the greater the flow velocity difference. According to the Bernoulli equation, when an incompressible ideal fluid flows steadily in a gravity field, the sum of the velocity head, position head and pressure head of the unit gravity fluid along the streamline remains constant. Among them, the pressure head is proportional to the force perpendicular to the grid, and the velocity head is proportional to the force parallel to the grid. When these two forces are large, the friction between the rubber ball and the grid increases, and the ball is easily stuck at the grid outlet. Once the rubber ball in front is stuck, the flow of subsequent rubber balls will be blocked, eventually causing more and more rubber balls to be seriously blocked at the ball collection net.

[0005] The existing technical solution [Article No. 11008-6218 (2010) 05-0055-02], ball collection failure analysis and treatment of circulating water rubber ball cleaning system, adds a baffle at the outlet of the ball collection net. The baffle is parallel to the ball collection net, and the circulating water will form two vortices behind the baffle. Inside the vortex, there is a vortex beam rotating around its own axis at a constant angular speed. The vortex beam is inside the vortex core area, and the fluid velocity outside the vortex beam is inversely proportional to the vortex beam radius. The pressure in the vortex core area is lower than the pressure in the water flow rotation area outside the vortex core, so the vortex has a suction effect. However, in actual work, the formation of the vortex cannot make the rubber balls quickly discharged, but will accumulate at the outlet of the ball collection net, and the effect is poor.

[0006] At the same time, when the water flows into the ball collecting device composed of the grid plate, the pressure increases when the water flows in because the two sides of the grid plate are designed to fit the ball collecting net. At this time, the rubber ball enters and easily damages the net surface.

[0007] In summary, it is urgent to develop a new type of rotating pendulum self-locking funnel ball collecting net, which is of great significance for breaking through the technical bottleneck that restricts the improvement of the efficiency of the rubber ball cleaning system. Summary of the invention

[0008] Purpose of the invention: The purpose of the present invention is to provide a swing-type self-locking funnel ball collecting net to solve the technical problems of the existing device mentioned in the background technology, that is, the net surface is easily damaged by the rubber balls due to the difference in water flow velocity, and the formation of vortexes makes it impossible to discharge the rubber balls quickly.

[0009] The present invention discloses a rotary swing self-locking funnel ball collecting net, comprising a round tube and an electric actuator, characterized in that: a rotating shaft is arranged through the round tube, two ends of the rotating shaft are connected to the round tube through sealing bearings, a pin shaft is symmetrically arranged on the inner tube wall of the round tube, the rotating funnel ball collecting net is limited and rotated on the inner tube wall of the round tube through the pin shaft, a coordinated rotary swing mechanism is horizontally arranged on the rotating shaft, the coordinated rotary swing mechanism is arranged inside the rotating funnel ball collecting net, the coordinated rotary swing mechanism drives the rotating funnel ball collecting net to open and close, a ball collecting tube is embedded and installed in the round tube, and the rotating funnel ball collecting net is in contact with the ball collecting tube when in a ball collecting state.

[0010] Furthermore, the rotating funnel ball collecting net includes a half-funnel ball collecting net 1, a half-funnel ball collecting net 2, an inner rotating nest and an outer rotating sleeve. An inner hinged sleeve is arranged at the two corners of the half arc of the half-funnel ball collecting net, and an outer hinged sleeve is arranged at the two corners of the half arc of the half-funnel ball collecting net 2. The inner rotating nest is embedded in the outer rotating sleeve, and the inner rotating nest and the outer rotating sleeve are respectively installed on the pin shaft. The inner rotating nest and the outer rotating sleeve are rotated by the pin shaft. A group of semicircular notches are arranged on the half-funnel ball collecting net 1 and the half-funnel ball collecting net 2, and a group of elliptical holes are arranged on the half-funnel ball collecting net 1 and the half-funnel ball collecting net 2. The length of the elliptical hole is 30mm-100mm, and the width of the elliptical hole is 5mm-20mm.

[0011] Furthermore, the coordinated swing mechanism includes a pin sleeve, two end sleeves and a connecting rod. The pin sleeves are respectively arranged on semi-funnel ball collecting net one and semi-funnel ball collecting net two. The two end sleeves are embedded and installed on the rotating shaft and the two end sleeves are fixed to the rotating shaft. One end of the connecting rod is connected to the pin sleeve through pin two, and the other end of the connecting rod is connected to the two end sleeves through pin three.

[0012] Furthermore, flanges are provided on both sides of the circular tube to facilitate installation and disassembly; the ball receiving tube is a curved tube, which is more in line with the hydrodynamic principle of ball receiving.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] By arranging the inward-rotating nesting, the outward-rotating sleeve and the funnel ball collecting net, when the rubber ball enters the funnel ball collecting net, the interlocking structure of the inward-rotating nesting and the outward-rotating sleeve avoids the rubber ball from directly hitting the connection of the ball collecting net. When the rubber ball enters the funnel ball collecting net, it avoids the rubber ball from directly acting on the ball collecting net, disperses the force of the rubber ball acting on the ball collecting net, reduces the time the rubber ball stays in the net, and improves the ball collecting efficiency.

[0015] In the circulating water-gel ball system, a cooperative swing mechanism is innovatively set up. This mechanism is installed in the net, and its main function is to drive the funnel ball collection net to open and close. Based on the optimization of the water flow state, the cooperative swing mechanism breaks up the formed vortex and destroys the vortex core, effectively improving the ball collection environment, thereby achieving the purpose of rapid ball collection.

[0016] From the perspective of structural performance, the eddy current destruction greatly improves the torsional rigidity of the actuator's overall structure. This significantly reduces the risk of deformation and damage to the entire device when facing high-speed water flow impact and frequent collisions with rubber balls. In addition, the device can disperse the pressure when the water flows in, effectively reduce the damage of the rubber balls to the net surface, extend the service life of the ball collection net, and ensure the stable operation of the circulating water rubber ball system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a first angle stereogram of the present invention;

[0018] Figure 2 The present invention Figure 1 A magnified image

[0019] Figure 3 is a second angled stereogram of the present invention;

[0020] Figure 4 is a third angle stereogram of the present invention;

[0021] Figure 5 It is a stereogram of the internal opening angle of the present invention;

[0022] Figure 6 This is a three-dimensional diagram of the present invention without the inside of the round tube

[0023] Figure 7 It is a schematic diagram of the prior art. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In one embodiment, Figures 1 to 6As shown, a rotary swing self-locking funnel ball collecting net comprises a circular tube 1 and an electric actuator 2, characterized in that: a rotating shaft 3 is arranged through the circular tube 1, both ends of the rotating shaft 3 are connected to the circular tube 1 through sealing bearings 4, a pin shaft 5 is symmetrically arranged on the inner wall of the circular tube 1, a rotating funnel ball collecting net 6 is limitedly rotated on the inner wall of the circular tube 1 through the pin shaft 5, a cooperative rotary swing mechanism 7 is horizontally arranged on the rotating shaft 3, the cooperative rotary swing mechanism 7 is arranged inside the rotating funnel ball collecting net 6, the cooperative rotary swing mechanism 7 drives the rotating funnel ball collecting net 6 to open and close, a ball collecting tube 8 is embedded and installed in the circular tube 1, and the rotating funnel ball collecting net 6 abuts against the ball collecting tube 8 when in the ball collecting state.

[0026] In one embodiment, Figures 1 to 6 As shown, the rotating funnel ball collecting net 6 includes a half funnel ball collecting net 1 61, a half funnel ball collecting net 2 62, an inner rotating nest 63 and an outer rotating sleeve 64. An inner hinged sleeve 63 is provided at the two corners of the semicircular arc of the half funnel ball collecting net 1 61, and an outer hinged sleeve 63 is provided at the two corners of the semicircular arc of the half funnel ball collecting net 2 62. The inner rotating nest 63 is embedded in the outer rotating sleeve 64. The inner rotating nest 63 and the outer rotating sleeve 64 are respectively installed on the pin shaft 1 5. The inner rotating nest 63 and the outer rotating sleeve 64 are limited and rotated by the pin shaft 1 5. A group of semicircular notches 65 are provided on the half funnel ball collecting net 1 61 and the half funnel ball collecting net 2 62.

[0027] In one embodiment, Figure 4 As shown, the cooperative swing mechanism 7 includes a pin sleeve 71, two end sleeves 72 and a connecting rod 73. The pin sleeve 71 is respectively arranged on the semi-funnel ball collecting net 1 61 and the semi-funnel ball collecting net 2 62. The two end sleeves 72 are embedded and installed on the rotating shaft 3 and the two end sleeves 72 are fixed to the rotating shaft 3. One end of the connecting rod 73 is connected to the pin sleeve 71 through the pin shaft 2, and the other end of the connecting rod 73 is connected to the two end sleeves 72 through the pin shaft 3.

[0028] In one embodiment, Figures 1 to 6 As shown, flanges 21 are provided on both sides of the circular tube 1, the ball collecting tube 8 is a curved tube, and a group of elliptical holes are provided on the semi-funnel ball collecting net 1 61 and the semi-funnel ball collecting net 2 62. The length of the elliptical holes is 30mm-100mm, and the width of the elliptical holes is 5mm-20mm, which is convenient for catching rubber balls and facilitating water flow through.

[0029] In one embodiment, Figures 1 to 6 As shown, in the ball collecting state, the semi-funnel ball collecting net 1 61 and the semi-funnel ball collecting net 2 62 form an integral rotating funnel ball collecting net 6, and the water flow carries the rubber balls into the circular tube 1, and the rotating funnel ball collecting net 6 intercepts the rubber balls and guides them to the ball collecting tube 8, so as to realize the recovery of the rubber balls;

[0030] In one embodiment, in the flushing state, the ball collection ends, and when the electric actuator 2 is started, the rotating shaft 3 is driven to rotate. When the rotating shaft 3 rotates, the connecting rod 73 is driven to move through the shaft sleeves 72 at both ends, and the connecting rod 73 then drives the semi-funnel ball collecting net 1 61 and the semi-funnel ball collecting net 2 62 to rotate around the pin shaft 1 5 through the pin shaft sleeve 71, so as to realize the opening of the rotating funnel ball collecting net 6. During the rotation process, the high-speed water flow flushes the semi-funnel ball collecting net 1 61 and the semi-funnel ball collecting net 2 62.

[0031] In one embodiment, Figures 1 to 5 As shown, by setting the rotational cooperation of the inner rotation nesting 63 and the outer rotation sleeve 64, when the rubber ball enters the funnel ball collecting net 6, the interlocking structure can prevent the rubber ball from directly hitting the connection of the ball collecting net. When the rubber ball enters the rotatable funnel ball collecting net 6, it prevents the rubber ball from directly acting on the rotating funnel ball collecting net 6, disperses the force of the rubber ball acting on the rotating funnel ball collecting net 6, reduces the time the rubber ball stays in the rotating funnel ball collecting net 6, and improves the ball collecting efficiency.

[0032] In the circulating water rubber ball system, the cooperative swing mechanism 7 is installed in the funnel ball collecting net 6, and its main function is to drive the funnel ball collecting net 6 to open and close. Based on the optimization of the water flow state, the cooperative swing mechanism 7 breaks up the formed vortex and destroys the vortex core, effectively improving the ball collecting environment. After the vortex is destroyed, the torsional rigidity of the overall structure of the electric actuator 2 is greatly improved. This significantly reduces the risk of deformation and damage to the entire device when facing the impact of high-speed water flow and frequent collisions of rubber balls. In addition, the device can disperse the pressure when the water flow enters, effectively reduce the damage of the rubber balls to the net surface of the funnel ball collecting net 6, extend the service life of the ball collecting net, and ensure the stable operation of the circulating water rubber ball system.

Claims

1. A swing-type self-locking funnel ball collecting net, comprising a round tube (1) and an electric actuator (2), characterized in that: A rotating shaft (3) is arranged through the circular tube (1), and both ends of the rotating shaft (3) are connected to the circular tube (1) through sealing bearings (4). A pin shaft (5) is symmetrically arranged on the inner wall of the circular tube (1) up and down. The rotating funnel ball collecting net (6) is limitedly rotated on the inner wall of the circular tube (1) through the pin shaft (5). A coordinated swing mechanism (7) is arranged horizontally on the rotating shaft (3). The coordinated swing mechanism (7) is arranged inside the rotating funnel ball collecting net (6). The coordinated swing mechanism (7) drives the rotating funnel ball collecting net (6) to open and close. A ball collecting tube (8) is embedded and installed in the circular tube (1). When the rotating funnel ball collecting net (6) is in a ball collecting state, it abuts against the ball collecting tube (8).

2. The swing-type self-locking funnel ball collecting net according to claim 1, characterized in that: The rotating funnel ball collecting net (6) comprises a semi-funnel ball collecting net 1 (61), a semi-funnel ball collecting net 2 (62), an inner rotating nest (63) and an outer rotating sleeve (64). An inner hinge sleeve (63) is arranged at two corners of the semicircular arc of the semi-funnel ball collecting net 1 (61), and an outer hinge sleeve (63) is arranged at two corners of the semicircular arc of the semi-funnel ball collecting net 2 (62). The inner rotating nest (63) is embedded in the outer rotating sleeve (64). The inner rotating nest (63) and the outer rotating sleeve (64) are respectively installed on a pin shaft 1 (5). The inner rotating nest (63) and the outer rotating sleeve (64) are limitedly rotated by the pin shaft 1 (5). A group of semicircular notches (65) are arranged on the semi-funnel ball collecting net 1 (61) and the semi-funnel ball collecting net 2 (62).

3. The swing-type self-locking funnel ball collecting net according to claim 1, characterized in that: The coordinated swing mechanism (7) comprises a pin sleeve (71), two end sleeves (72) and a connecting rod (73); the pin sleeve (71) is respectively arranged on the first half funnel ball collecting net (61) and the second half funnel ball collecting net (62); the two end sleeves (72) are embedded and installed on the rotating shaft (3) and the two end sleeves (72) are fixed to the rotating shaft (3); one end of the connecting rod (73) is connected to the pin sleeve (71) through the second pin; and the other end of the connecting rod (73) is connected to the two end sleeves (72) through the third pin.

4. The swing-type self-locking funnel ball collecting net according to claim 1, characterized in that: Flanges (21) are arranged on both sides of the circular tube (1), and the ball receiving tube (8) is a curved tube.

5. The swing-type self-locking funnel ball collecting net according to claim 2, characterized in that: A group of elliptical holes are arranged on the first semi-funnel ball collecting net (61) and the second semi-funnel ball collecting net (62), the length of the elliptical holes is 30mm-100mm, and the width of the elliptical holes is 5mm-20mm.

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