US 11,883,862 B2
Pipeline automatic scale removal and storage device
Dezhi Zeng, Chengdu (CN); Miaopeng Zhou, Chengdu (CN); Jianqi Yang, Chengdu (CN); Qiang Du, Chengdu (CN); Dikui Cheng, Chengdu (CN); Baojun Dong, Chengdu (CN); Qiang Zhang, Chengdu (CN); Jiangjiang Zhang, Chengdu (CN); and Gang Tian, Chengdu (CN)
Assigned to Southwest Petroleum University, Chengdu (CN); Sichuan Xinchuangneng Petroleum Eng. Tech. Co Ltd, Guangyuan (CN); and Sichuan Zhongtuo Youshi Light Control Tech. Co Ltd, Chengdu (CN)
Filed by Southwest Petroleum University, Chengdu (CN); Sichuan Xinchuangneng Petroleum Engineering Technology Co., Ltd., Guangyuan (CN); and Sichuan Zhongtuo Youshi Light Control Technology Co., Ltd., Chengdu (CN)
Filed on Apr. 20, 2023, as Appl. No. 18/304,034.
Claims priority of application No. 202210495074.1 (CN), filed on May 7, 2022.
Prior Publication US 2023/0356270 A1, Nov. 9, 2023
Int. Cl. B08B 9/04 (2006.01); B08B 1/00 (2006.01); F16L 55/26 (2006.01); F16L 55/34 (2006.01)
CPC B08B 9/04 (2013.01) [B08B 1/005 (2013.01); F16L 55/26 (2013.01); F16L 55/34 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A pipeline automatic scale removal and storage device, wherein the scale removal and storage device is installed in a pipeline (4) and comprises: a scale remover (1), a scale storage device (2) and a coupling (3); and the scale remover (1) is connected with the scale storage device (2) through the coupling (3);
the scale remover (1) is composed of a scale breaking mechanism (5), a cutting mechanism (6) and a grinding mechanism (7);
the scale breaking mechanism (5) comprises a first central shaft (12), a supporting skeleton (8), a plurality of triangular disks (10) and a plurality of scale breaking teeth (11); the first central shaft (12) is fixed at the center of the supporting skeleton (8), and the first central shaft (12) is perpendicular to a plane in which the supporting skeleton (8) is located; a plurality of first base round sleeves (14a) are uniformly distributed along a circumferential direction outside the supporting skeleton (8); the plurality of first base round sleeves (14a) are connected with first telescopic mechanisms (36a); one end of each first telescopic mechanism (36a) is located in each of the first base round sleeves (14a), and the other end of each first telescopic mechanism is fixed with one of the plurality of triangular disks (10); part of the plurality of scale breaking teeth (11) are arranged at one side of each triangular disk (10) near an inner wall of the pipeline (4); and an outward triangular end of the triangular disk (10) is taken as a front end, and the front end and a rear end of the triangular disk (10) are respectively provided with a plurality of first directional wheels (9a);
the cutting mechanism (6) comprises a second central shaft (15), a cutting mechanism skeleton (16), a plurality of fixing disks (18) and cutting blades (29); a body of the cutting mechanism skeleton (16) is a supporting sheath (19); a plurality of second base round sleeves (14b) are uniformly distributed around both ends of an outer peripheral surface of the supporting sheath (19); a bearing positioning bulge (20) is arranged inside the supporting sheath (19); a first ball bearing (21a) is placed respectively at a first end of the bearing positioning bulge (20) and a second ball bearing (21b) is placed at an opposite second end of the bearing positioning bulge (20), and the second central shaft (15) is sleeved in the first and second ball bearings (21); the second central shaft (15) penetrates through the bearing positioning bulge (20), and an outer wall is in clearance fit with the inner wall of the bearing positioning bulge (20); the outer peripheral surface of the second central shaft (15) is provided with an external thread (22) and a circlip groove (23), and a pin through hole (24) is formed at the corresponding external thread (22); a circlip (25) is placed in the circlip groove (23), and the circlip limits the axial movement of the first ball bearings (21a) on the second central shaft (15); the external thread (22) is connected with a slotted lock nut (26), the slotted lock nut (26) is located in the supporting sheath (19) and the outer sides of the first ball bearings (21a), and a pin (27) is inserted into a groove of the slotted lock nut (26); the pin (27) penetrates through the slotted lock nut (26) and is inserted into the pin through hole (24) to limit the rotation of the slotted lock nut (26); the base round sleeves (14) on the outer peripheral surface of the supporting sheath (19) are connected with the telescopic mechanisms (36); one end of the plurality of telescopic mechanisms (36) corresponds one by one to the plurality of second base round sleeves (14b) located on one side of the supporting sheath (19), and the other end of each of the plurality of telescopic mechanisms is correspondingly connected with one of the plurality of fixing disks (18); the quantity of the plurality of fixing disks (18) is equal to the quantity of the second base round sleeves (14b) on the corresponding side of the supporting sheath (19); a cutting edge fixing groove (28) is arranged outside each fixing disk (18); a plurality of threaded through holes are formed on both sides of the cutting edge fixing grooves (28), and the cutting blades (29) are integrally installed in the middle; each of the cutting blades (29) are fixed with corresponding one of the cutting edge fixing grooves (28) through studs; one end of the plurality of second telescopic mechanisms (36b) corresponds one by one to the plurality of second base round sleeves (14b) located on the other side of the supporting sheath (19), and the other end is correspondingly connected with steering wheels (17);
the grinding mechanism (7) comprises a third central shaft (33), a grinding mechanism skeleton (30), a fixing bottom plate (31) and grinding blocks (32); the third central shaft (33) is fixed at the center of the grinding mechanism skeleton (30), and the third central shaft (33) is perpendicular to a plane in which the grinding mechanism skeleton (30) is located; both ends of the third central shaft (33) are respectively a threaded connector D(34) and a threaded connector E(35); the threaded connector E(35) is connected with a female adapter at one end of the second central shaft (15); a female adapter at the other end of the second central shaft (15) is connected with a threaded connector F at the end of the first central shaft (12); a plurality of third base round sleeves (14c) are uniformly distributed along a circumferential direction outside the grinding mechanism skeleton (30); the third base round sleeves (14c) are connected with third telescopic mechanisms (36c); one end of each of the third telescopic mechanisms (36c) is located in a corresponding one of the third base round sleeves (14c), and the other end of each of the third telescopic mechanisms (36c) is connected with the fixing bottom plate (31); the grinding blocks (32) are installed on one side of the fixing bottom plate (31) near the inner wall of the pipeline (4), and the grinding blocks (32) are in clearance fit with the inner wall of the pipeline (4); and a plurality of second directional wheels (9b) are installed at one end adjacent to the installing positions of the grinding blocks (32) on the fixing bottom plate (31);
one end of the coupling (3) is connected with the threaded connector D(34) in the scale remover (1), and the other end is connected with a coupling connector at the end of the scale storage device (2);
the scale storage device (2) is hermetically and movably installed in the pipeline (4), and the scale removal and storage device moves forward as a whole under the pressure action of rear fluid.