CN213714085U - Ball collecting device for rubber balls - Google Patents
Ball collecting device for rubber balls Download PDFInfo
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- CN213714085U CN213714085U CN202022203375.1U CN202022203375U CN213714085U CN 213714085 U CN213714085 U CN 213714085U CN 202022203375 U CN202022203375 U CN 202022203375U CN 213714085 U CN213714085 U CN 213714085U
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Abstract
The utility model relates to a rubber ball collecting device, which comprises a circulating water pipeline and a ball collecting net, wherein the ball collecting net is fixedly arranged in the circulating water pipeline, the ball collecting net comprises an outer ball collecting net and an inner ball collecting net, and the inner ball collecting net is arranged at the inner side of the outer ball collecting net; the outer ball collecting net is of a hollow round table structure and comprises a ball collecting inlet end face and a ball collecting outlet end face, and the diameter of the ball collecting inlet end face is larger than that of the ball collecting outlet end face; the ball collecting net is of a hollow conical structure, the end face of the ball collecting net is flush with the end face of the ball collecting outlet, and the diameter of the end face of the ball collecting net is smaller than that of the end face of the ball collecting outlet. The utility model provides a rubber ball collecting device, the area of ball collecting net is big, effectively reduces the resistance of rivers, promotes the rate of recovery of rubber ball to guarantee effectively to clear away the incrustation scale of condenser copper pipe, promotes the heat exchange efficiency of condenser, reduces the coal consumption, the energy saving, practices thrift the cost; the ball collecting net is fixedly arranged in the pipeline and is immovable, so that the leakage of the rubber balls is avoided.
Description
Technical Field
The utility model relates to a condenser rubber ball cleaning system's technical field particularly, relates to a rubber ball receives ball device.
Background
The condenser is a key heat exchange device in a thermal power plant. In the heat exchange line, the formation of scale reduces the heat exchange efficiency, causing an increase in the steam discharge pressure of the turbine. Therefore, the cleanness of the heat exchange pipeline of the condenser is kept, and the improvement of the heat efficiency of the whole unit is positively influenced. And the heat exchange effect of the circulating water of the condenser is influenced by the operating condition of the ball collecting system of the rubber balls.
In the prior art, a movable grid plate type A-shaped ball receiving net and a movable funnel type V-shaped ball receiving net are generally adopted, and the following defects exist: 1) impurities in water are easy to block on a ball collecting net, so that the flow area of the ball collecting net is reduced, the flowability of rubber balls is poor, the ball collecting rate is low, and scales on the inner wall of a copper pipe of the condenser cannot be effectively removed; 2) the ball collecting net is movable, and after the ball collecting net is used for a period of time, a gap is formed between the net plate and the inner wall of the pipeline, so that rubber balls pass through or are clamped in the gap, the recovery rate of the rubber balls is reduced, and the cleaning effect of a rubber ball cleaning system is influenced; 3) the ball collecting angle of the ball collecting net is more than 20 degrees, the component force of the gravity of the rubber ball perpendicular to the ball collecting net is larger, so that the rubber ball is easy to be clamped on the ball collecting net, particularly, the component force of the rubber ball perpendicular to the ball collecting net is larger at the inlet or the outlet of the ball collecting net due to the larger speed change of the fluid, and the rubber ball is easy to be clamped at the inlet and the outlet of the ball collecting net; 4) the volume is large, the disassembly and the installation cannot be realized, and the replacement is difficult;
in addition, in the prior art, a fixed three-way ball collecting net structure is adopted, the phenomena of ball blocking and sundry blocking also exist, the size is large, the disassembly and installation cannot be realized, and the replacement is difficult.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, a first aspect of the present invention provides a glue ball collecting device, which includes a circulating water pipeline and a ball collecting net, wherein the ball collecting net is disposed in the circulating water pipeline, the ball collecting net includes an outer ball collecting net and an inner ball collecting net, and the inner ball collecting net is disposed at an inner side of the outer ball collecting net;
the outer ball receiving net is of a hollow round table structure and comprises a ball receiving inlet end face and a ball receiving outlet end face, and the diameter of the ball receiving inlet end face is larger than that of the ball receiving outlet end face;
the ball collecting net is of a hollow conical structure, the end face of the ball collecting net is flush with the end face of the ball collecting outlet, and the diameter of the end face of the ball collecting net is smaller than that of the end face of the ball collecting outlet.
The utility model provides a rubber ball collecting device, including outer ball receiving net and adduction net, compare with "A" font ball receiving net and funnel formula "V" font ball receiving net among the prior art, the area increase of ball receiving net, in the interception rubber ball, effectively reduce the resistance of rivers, rivers can pass through smoothly to guarantee that the rubber ball retrieves smoothly, promote the rate of recovery of rubber ball, thereby guarantee effectively to clear away the incrustation scale of condenser copper pipe, promote the heat exchange efficiency of condenser, reduce the coal consumption, and the energy saving, the cost is saved.
Furthermore, an included angle alpha between a generatrix of the outer ball receiving net and a center line of the outer ball receiving net is less than or equal to 10 degrees.
The utility model provides an among the rubber ball collecting device, the side generating line of outer ball receiving net is little with the contained angle of the central line of outer ball receiving net for the component force of rubber ball in the outer ball receiving net direction of perpendicular to reduces, and the inside and outside pressure differential of rubber ball at outer ball receiving net reduces, thereby is favorable to the flow of rubber ball, promotes the rate of recovery of rubber ball, thereby guarantees effectively to clear away the incrustation scale of condenser copper pipe, promotes the heat exchange efficiency of condenser, reduces the coal consumption, and the energy saving practices thrift the cost.
Furthermore, the rubber ball collecting device also comprises a baffle plate and a ball collecting pipe, wherein the baffle plate is respectively abutted with the end surface of the ball collecting outlet and the end surface of the ball collecting net;
the upper side and the lower side of the baffle are respectively provided with a ball outlet, and the ball collecting pipe is communicated with the ball outlet.
Further, the center line of the baffle is collinear with the center line of the outer ball collecting net, and the radius of the baffle is larger than that of the ball collecting outlet end face.
The utility model discloses a set up the baffle receiving the ball outlet end face to the radius of baffle is greater than the radius of receiving the ball outlet end face, form the vortex between baffle and ball receiving net, pressure around the ball receiving net in the balanced ball receiving outlet department of baffle, in order to prevent that the glueballs card in the glueballs exit, guarantee that the glueballs is smooth through going out the ball hole, promote the rate of recovery of glueballs, thereby guarantee effectively to clear away the incrustation scale of condenser copper pipe, promote the heat exchange efficiency of condenser, reduce the coal consumption, and energy is saved saves cost.
Further, the difference between the radius of the baffle and the radius of the end face of the ball collecting outlet is between 100mm and 150 mm.
The utility model discloses a limit the radius of baffle and receive the difference in radius of ball export terminal surface within the certain limit, guarantee the vortex effect between baffle and the ball receiving net, prevent that the glueballs card from in the glueballs exit, guarantee that the smooth ball hole of passing through of glueballs promotes the rate of recovery of glueballs.
Further, the rubber ball collecting device also comprises a vortex disturbing ring which is arranged between the outer ball collecting net and the inner ball collecting net;
the vortex disturbing ring is of a hollow round table structure, and is in a necking shape along the extending direction from the ball receiving inlet end face to the central line of the ball receiving outlet end face.
The utility model discloses a set up the vortex and disturb the circle between outer ball receiving net and adduction ball receiving net, at vortex and disturb the circle and receive the ball receiving net outward, vortex is disturbed and is formed the vortex between circle and the adduction ball receiving net, and the surface formation of ball receiving net and outer ball receiving net including making rivers is rolled up and is inhaled and is flowed, makes the difficult card of gluey ball collect the net on, promotes the mobility of gluey ball, and then promotes the rate of recovery of gluey ball.
Furthermore, the rubber ball collecting device further comprises a vortex street spoiler, the vortex street spoiler is arranged on the ball collecting inlet end face and is obliquely arranged, the extending direction of the vortex street spoiler is intersected with the extending direction of the central line from the ball collecting inlet end face to the ball collecting outlet end face, and the included angle between the vortex street spoiler and the ball collecting inlet end face is 20-35 degrees.
Therefore, the utility model discloses a set up the vortex street spoiler of slope in the entrance of outer ball receiving net for the fluid forms two vortexes through vortex street spoiler, and the vortex cycle drops, forms the karman vortex street, makes the local fluid of ball receiving net import department form the pressure fluctuation, thereby reduces the inside and outside differential pressure of ball receiving net, prevents the card ball.
Furthermore, the number of the vortex street spoiler is a plurality, and the plurality of vortex street spoiler is arranged in an equidistant array along the circumferential direction of the ball receiving inlet end face.
The utility model discloses a circumferencial direction equidistant array vortex street spoiler at receipts ball entry terminal surface makes the circumferencial direction at the entry of receiving net all form the vortex, prevents the ball of receiving net card.
Further, the outer ball receiving net is provided with a first part and a second part which are arranged along the circumferential direction, the second part is positioned at the lower side of the outer ball receiving net, a plurality of holes are arranged on the first part, and the size of each hole is smaller than that of the rubber ball;
the central angle corresponding to the first portion is larger than the central angle corresponding to the second portion.
The utility model discloses a be provided with foraminiferous first portion and the not foraminiferous second portion with outer ball receiving net along circumference, and the second portion sets up the downside at outer ball receiving net, makes debris such as filler piece, rust piece flow in the ball receiving hole through second portion, avoids debris to block up the hole of ball receiving net, and in addition, the central angle that first portion corresponds is greater than the central angle that second portion corresponds, increases the flow area of outer ball receiving net, promotes the ball receiving rate of rubber ball.
Further, the corresponding central angle of the second part ranges from 20 degrees to 30 degrees. The utility model discloses a prescribe a limit to the size of the central angle that the second portion corresponds, on the one hand, prevent that debris from blockking up the hole of ball net, on the other hand guarantees the through flow area of outer ball net, promotes the ball collecting rate of glueballs.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a rubber ball collecting device provided by the utility model;
fig. 2 is a schematic left view of the rubber ball collecting device provided by the present invention;
FIG. 3 is a schematic sectional view A-A shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view B-B of FIG. 2;
description of reference numerals:
100-a circulating water pipeline; 200-a ball-catching net; 210-outer ball receiving net; 211-ball-collecting inlet end face; 212-ball-collecting outlet end face; 213-first part; 214-second section; 2131-holes; 220-adduction net; 300-a baffle; 301-ball outlet; 400-collecting the bulb; 600-vortex street spoiler; 500-vortex disturbing ring;
alpha is an included angle between a side bus of the external ball receiving net and a center line of the external ball receiving net;
the included angle between the side generatrix of the beta-vortex disturbing ring and the central line of the ball collecting inlet end surface;
γ -second portion corresponding radius angle;
the included angle between the theta-vortex street spoiler and the end face of the ball collecting inlet;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures 1-4 are described in detail below.
It should be noted that the descriptions of the directions "up", "down", "left", "right", "front", and "rear" referred to in this application are all marked with reference to the viewing angle of the glue ball collecting device in fig. 1 combined with the direction of the lower left corner. Fig. 1 shows a state in which the ball collecting device is placed in use.
Referring to fig. 1-4, the present invention provides a glue ball collecting device, which comprises a circulating water pipeline 100 and a ball collecting net 200, wherein the ball collecting net 200 is fixedly disposed in the circulating water pipeline 100, the ball collecting net 200 comprises an outer ball collecting net 210 and an inner ball collecting net 220, and the inner ball collecting net 220 is disposed at the inner side of the outer ball collecting net 210;
the outer ball receiving net 210 is in a hollow round platform structure, the outer ball receiving net 210 comprises a ball receiving inlet end surface 211 and a ball receiving outlet end surface 212, and the diameter of the ball receiving inlet end surface 211 is larger than that of the ball receiving outlet end surface 212;
the adduction net 220 is a hollow cone structure, the end surface of the adduction net 220 is flush with the ball collection outlet end surface 212, and the diameter of the end surface of the adduction net 220 is smaller than that of the ball collection outlet end surface 212.
It should be noted that the outer ball receiving net 210 and the inner ball receiving net 220 have a certain wall thickness, the diameter of the ball receiving inlet end surface 211 refers to the outer diameter of the ball receiving inlet of the outer ball receiving net 210, and the diameter of the ball receiving outlet end surface 212 refers to the outer diameter of the ball receiving outlet of the outer ball receiving net 210; the end surface diameter of the adduction net 220 means the outer diameter of the end surface of the adduction net 220.
The minimum distance between the outer wall of the outer ball net 210 and the inner wall of the circulating water pipe 100 is between 150mm and 250mm, and in this embodiment, the minimum distance between the outer wall of the outer ball net 210 and the inner wall of the circulating water pipe 100 is 200mm, which is not shown in the figure.
The utility model provides a rubber ball collecting device, including outer ball receiving net 210 and interior ball receiving net 220, the area of ball receiving net 200 is about 5-8 times of pipeline cross-sectional area, and "A" font ball receiving net and funnel formula "V" font ball receiving net among the prior art, the area of ball receiving net 200 is about 1.5 times of pipeline cross-sectional area, compare with "A" font ball receiving net and funnel formula "V" font ball receiving net among the prior art, the area of ball receiving net 200 increases, when intercepting rubber ball, effectively reduce the resistance of rivers, rivers can pass through smoothly, thereby guarantee that rubber ball retrieves smoothly, promote the rate of recovery of rubber ball, thereby guarantee to effectively clear away the incrustation scale of condenser copper pipe, promote the heat exchange efficiency of condenser, reduce the coal consumption, energy saving, and cost saving; the ball collecting net 200 is fixedly arranged in the circulating water pipeline 100 and is immovable, so that the leakage of the rubber balls is avoided.
It should be noted that the center line of the outer ball receiving net 210 and the center line of the inner ball receiving net 220 may be collinear or not, and in the present embodiment, referring to the drawings, the center line of the outer ball receiving net 210 and the center line of the inner ball receiving net 220 are collinear.
Referring to fig. 3, an angle a between a side generatrix of the outer ball net 210 and a center line of the outer ball net 210 is less than or equal to 10 °. Preferably, an angle a between a side generatrix of the outer ball net 210 and a center line of the outer ball net 210 is 10 °.
Among the prior art, the side generating line of movable grid plate formula "A" font ball collecting net is greater than 20 with the contained angle of fluid flow velocity direction, compare with movable grid plate formula "A" font ball collecting net among the prior art, among the rubber ball collecting device, the side generating line of outer ball collecting net 210 is little with the contained angle of outer ball collecting net 210's central line, make the component force of rubber ball at the outer ball collecting net 210 direction of perpendicular to reduce, the inside and outside pressure differential of rubber ball at outer ball collecting net 210 reduces, thereby be favorable to the flow of rubber ball, promote the rate of recovery of rubber ball, thereby guarantee effectively to clear away the incrustation scale of condenser copper pipe, promote the heat exchange efficiency of condenser, reduce the coal consumption, the energy saving, the cost saving.
Referring to fig. 1 and 4, the glue ball collecting device further comprises a baffle 300 and a ball collecting pipe 400, wherein the baffle 300 is respectively abutted against the ball collecting outlet end surface 212 and the end surface of the inward ball collecting net 220;
the upper side and the lower side of the baffle 300 are respectively provided with a ball outlet hole 301, and the ball collecting pipe 400 is communicated with the ball outlet hole 301.
Referring to figure 3, the centre line of the apron 300 is co-linear with the centre line of the outer ball receiving net 210 and the radius of the apron 300 is greater than the radius of the ball receiving outlet end face 212.
Since the direction of the velocity of the fluid at the outlet of the ball receiving net 200 varies greatly, the rubber ball is subjected to a large force in a direction perpendicular to the ball receiving net 200, and the phenomenon of ball jamming is likely to occur. Therefore, the utility model discloses a set up baffle 300 at ball receiving outlet end face 212, and the radius of baffle 300 is greater than the radius of ball receiving outlet end face 212, form the vortex between baffle 300 and ball receiving net 200, pressure around ball receiving net 200 in the balanced ball receiving outlet department through baffle 300, in order to prevent that the rubber ball card is in the rubber ball exit, guarantee that the rubber ball is smooth through out ball hole 301, promote the rate of recovery of rubber ball, thereby guarantee effectively to clear away the incrustation scale of condenser copper pipe, promote the heat exchange efficiency of condenser, reduce the coal consumption, and energy is saved, and the cost is saved.
Referring to fig. 3, the difference Δ r between the radius of the baffle 300 and the radius of the ball-collecting outlet end surface 212 is between 100mm and 150mm, and preferably, the difference Δ r between the radius of the baffle 300 and the radius of the ball-collecting outlet end surface 212 is 100 mm.
The radius of the baffle 300 is too small to have a vortex effect, and the radius of the baffle 300 is too large to affect the discharge speed of the water flow and increase the inner diameter of the circulating water pipe 100. Therefore, the utility model discloses a limit the radius of baffle 300 and receive the radius difference of ball outlet end face 212 within the certain limit, guarantee the vortex effect between baffle 300 and the ball receiving net 200, prevent that the glueballs card from in the glueballs exit, guarantee that glueballs are smooth through going out ball hole 301, promote the rate of recovery of glueballs.
Referring to fig. 1, 3 and 4, the ball catcher further includes a vortex disturbance ring 500, the vortex disturbance ring 500 being disposed between the outer ball catching net 210 and the inner ball catching net 220;
the vortex disturbing ring 500 is in a hollow circular truncated cone structure, and the vortex disturbing ring 500 is in a necking shape along the extending direction of the central line of the ball collecting inlet end face 211 to the ball collecting outlet end face 212.
Referring to fig. 3 and 4, an angle β between a side generatrix of the eddy disturbance 500 and a center line of the ball receiving inlet end surface 211 is greater than an angle α between a side generatrix of the outer ball receiving net 210 and the center line of the ball receiving inlet end surface 211, the angle β between the side generatrix of the eddy disturbance 500 and the center line of the ball receiving inlet end surface 211 is between 25 ° and 35 °, and preferably, in the present embodiment, the angle β between the side generatrix of the eddy disturbance 500 and the center line of the ball receiving inlet end surface 211 is 30 °.
The center line of the vortex disturbance 500 is collinear with the center line of the outer ball receiving net 210, there is a gap between the outer wall of the vortex disturbance 500 and the inner wall of the outer ball receiving net 210, and the minimum distance between the outer wall of the vortex disturbance 500 and the inner wall of the outer ball receiving net 210 is between 40mm and 60mm, preferably, in the present embodiment, the minimum distance between the outer wall of the vortex disturbance 500 and the inner wall of the outer ball receiving net 210 is 50 mm.
Therefore, the utility model discloses a set up vortex interference circle 500 between outer ball receiving net 210 and adduction ball receiving net 220, at vortex interference circle 500 and outer ball receiving net 210, vortex interference circle 500 and adduction ball receiving net 220 between form the vortex, make rivers including ball receiving net 220 and outer ball receiving net 210's surface formation roll up absorb flow, make the difficult card of gluey ball collect the net, promote the mobility of gluey ball, and then promote the rate of recovery of gluey ball.
Referring to fig. 1 and 3, the rubber ball collecting device further includes a vortex street spoiler 600, the vortex street spoiler 600 is disposed on the ball collecting inlet end surface 211, the vortex street spoiler 600 is disposed obliquely, an extending direction of the vortex street spoiler 600 intersects an extending direction of a center line of the ball collecting inlet end surface 211 to the ball collecting outlet end surface 212, and an included angle between the vortex street spoiler 600 and the ball collecting inlet end surface 211 is 20 ° to 35 °.
Preferably, the included angle θ between the vortex street spoiler 600 and the ball-collecting inlet end surface 211 is 30 °.
In one embodiment, the deflection angle of the vortex street spoiler 600 around the ball collecting inlet end surface 211 is between 10 ° and 20 °, and preferably, the deflection angle of the vortex street spoiler 600 around the ball collecting inlet end surface 211 is 15 ° which is not shown in the figure.
Since the direction of the velocity of the fluid at the inlet of the ball receiving net 200 varies greatly, the rubber ball is subjected to a large force in a direction perpendicular to the ball receiving net 200, and the ball jamming phenomenon is likely to occur. Therefore, the utility model discloses a set up the vortex street that inclines and disturb board 600 in outer ball receiving net 210's entrance for the fluid forms two vortexes through vortex street and disturbs board 600, and the vortex cycle drops, forms the karman vortex street, makes the local fluid formation pressure fluctuation of ball receiving net 200 import department, thereby reduces the interior outer differential pressure of ball receiving net 200, prevents the card ball.
Referring to fig. 1 and 3, the number of the vortex street spoiler 600 is plural, and the plurality of vortex street spoiler 600 are arranged in an equally spaced array along the circumferential direction of the ball receiving inlet end surface 211.
Therefore, the utility model discloses a peripheral direction at ball receiving entry terminal surface 211 is equidistant array vortex street spoiler 600, makes all form the vortex at the peripheral direction of the entry of ball receiving net 200, prevents that ball receiving net 200 from blocking.
In one embodiment, the vortex shedding plate 600 is a sheet-like structure, and the size of the vortex shedding plate 600 is 200mm by 200 mm.
Referring to fig. 2, the outer ball receiving net 210 has a first portion 213 and a second portion 214 arranged along the circumferential direction, the second portion 214 is located at the lower side of the outer ball receiving net 210, a plurality of holes 2131 are arranged on the first portion 213, and the size of the holes 2131 is smaller than that of the rubber balls;
the first portion 213 corresponds to a larger central angle than the second portion 214.
The second portion 214 is not provided with a hole, and the second portion 214 is a solid portion.
The first portion 213 is provided with a plurality of holes 2131, and the shape of the holes 2131 is not limited, and may be a circular hole, a square hole, a strip-shaped hole, or the like.
Therefore, the utility model discloses a be provided with foraminiferous first portion 213 and the second portion 214 that does not have the hole with outer ball receiving net 210 along circumference, and second portion 214 sets up the downside at outer ball receiving net 210, make debris such as filler piece, rust piece flow in the ball hole through second portion 214, avoid debris to block up ball receiving net 200's hole 2131, in addition, the central angle that first portion 213 corresponds is greater than the central angle that second portion 214 corresponds, increase outer ball receiving net 210's flow area, promote the ball receiving rate of glueballs.
Referring to fig. 2, the second portion 214 corresponds to a central angle γ in the range 20 ° -30 °, preferably the second portion 214 corresponds to a central angle γ of 25 °.
When the central angle corresponding to the second portion 214 is too small, the holes of the ball receiving net 200 are easily blocked by the impurities, and when the central angle corresponding to the second portion 214 is too large, the flow area of the outer ball receiving net 210 is reduced, which may reduce the ball receiving rate of the glue balls. Therefore, the utility model discloses a size of the central angle that the second portion 214 corresponds is injectd, on the one hand, prevents that debris from blockking up the hole of ball receiving net 200, and on the other hand guarantees outer ball receiving net 210's flow area, promotes the ball receiving rate of glueballs.
In this embodiment, the ball collecting net 200 is detachably disposed in the circulating water pipe 100, the vortex disturbance ring 500 is detachably connected to the outer ball collecting net 210, the baffle plate 300 is detachably connected to the outer ball collecting net 210, and the vortex disturbance plate 600 is detachably connected to the outer ball collecting net 210, so that the apparatus can be installed separately and easily replaced.
The detachable connection may be a screw connection, a snap connection, or the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A glue ball collecting device comprises a circulating water pipeline (100) and a ball collecting net (200), wherein the ball collecting net (200) is fixedly arranged in the circulating water pipeline (100), the glue ball collecting device is characterized in that the ball collecting net (200) comprises an outer ball collecting net (210) and an inner ball collecting net (220), and the inner ball collecting net (220) is arranged on the inner side of the outer ball collecting net (210);
the outer ball receiving net (210) is of a hollow circular truncated cone structure, the outer ball receiving net (210) comprises a ball receiving inlet end surface (211) and a ball receiving outlet end surface (212), and the diameter of the ball receiving inlet end surface (211) is larger than that of the ball receiving outlet end surface (212);
the ball collecting net (220) is of a hollow conical structure, the end face of the ball collecting net (220) is flush with the ball collecting outlet end face (212), and the diameter of the end face of the ball collecting net (220) is smaller than that of the ball collecting outlet end face (212).
2. The ball collecting device of claim 1, wherein an angle a between a generatrix of the outer ball collecting net (210) and a center line of the outer ball collecting net (210) is less than or equal to 10 °.
3. A ball collection device according to claim 1, further comprising a baffle (300) and a ball collection tube (400), said baffle (300) abutting against said ball collection outlet end face (212) and an end face of said adduction net (220), respectively;
the upper side and the lower side of the baffle (300) are respectively provided with a ball outlet hole (301), and the ball collecting pipe (400) is communicated with the ball outlet hole (301).
4. A ball collection device according to claim 3, wherein the centre line of said apron (300) is collinear with the centre line of said outer ball collection net (210), the radius of said apron (300) being greater than the radius of said ball collection outlet end surface (212).
5. A ball collecting device according to claim 4, characterized in that the difference Δ r between the radius of the baffle (300) and the radius of the ball collecting outlet end surface (212) is between 100mm and 150 mm.
6. A ball collection device according to any one of claims 1 to 5, further comprising a vortex disturbance ring (500), said vortex disturbance ring (500) being disposed between said outer collection net (210) and said inner collection net (220);
the vortex disturbing ring (500) is of a hollow circular truncated cone structure, and is in a necking shape along the extending direction of the central line from the ball receiving inlet end face (211) to the ball receiving outlet end face (212).
7. A rubber ball collecting device according to claim 6, further comprising a vortex street spoiler (600), wherein the vortex street spoiler (600) is arranged on the ball collecting inlet end surface (211), the vortex street spoiler (600) is arranged obliquely, the extending direction of the vortex street spoiler (600) is intersected with the extending direction of the central line from the ball collecting inlet end surface (211) to the ball collecting outlet end surface (212), and the included angle θ between the vortex street spoiler (600) and the ball collecting inlet end surface (211) is 20-35 °.
8. A rubber ball collecting device according to claim 7, wherein the number of the vortex street spoiler (600) is plural, and the plural vortex street spoiler (600) are arranged in an equally spaced array along the circumferential direction of the ball collecting inlet end surface (211).
9. A rubber ball collecting device according to claim 1, characterized in that said outer ball collecting net (210) has a first portion (213) and a second portion (214) arranged in a circumferential direction, said second portion (214) being located at the lower side of said outer ball collecting net (210), said first portion (213) being provided with a number of holes (2131), said holes (2131) having a smaller size than said rubber balls;
the central angle corresponding to the first portion (213) is larger than the central angle corresponding to the second portion (214).
10. A ball collecting device according to claim 9, wherein said second portion (214) corresponds to a radius angle γ in the range of 20 ° -30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203375.1U CN213714085U (en) | 2020-09-30 | 2020-09-30 | Ball collecting device for rubber balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203375.1U CN213714085U (en) | 2020-09-30 | 2020-09-30 | Ball collecting device for rubber balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213714085U true CN213714085U (en) | 2021-07-16 |
Family
ID=76796731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022203375.1U Active CN213714085U (en) | 2020-09-30 | 2020-09-30 | Ball collecting device for rubber balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213714085U (en) |
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2020
- 2020-09-30 CN CN202022203375.1U patent/CN213714085U/en active Active
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