CN208331554U - ball serving device - Google Patents

ball serving device Download PDF

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Publication number
CN208331554U
CN208331554U CN201820596605.5U CN201820596605U CN208331554U CN 208331554 U CN208331554 U CN 208331554U CN 201820596605 U CN201820596605 U CN 201820596605U CN 208331554 U CN208331554 U CN 208331554U
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China
Prior art keywords
cylinder
pitching
ball
case
pitching case
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CN201820596605.5U
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Chinese (zh)
Inventor
杨祥祥
胡朝阳
赵毅
徐海涛
杨宇
王经天
单从云
辛敏东
吕宏洁
水寒青
王强
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China Petroleum and Natural Gas Co Ltd
China Petroleum Engineering and Construction Corp
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China Petroleum and Natural Gas Co Ltd
China Petroleum Engineering and Construction Corp
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Application filed by China Petroleum and Natural Gas Co Ltd, China Petroleum Engineering and Construction Corp filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201820596605.5U priority Critical patent/CN208331554U/en
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Publication of CN208331554U publication Critical patent/CN208331554U/en
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Abstract

The utility model discloses a kind of ball serving devices, belong to pipeline cleaning and lead to ball technical field.The ball serving device includes: gland, pitching case, service cylinder and multiple dress ball cylinders, pitching case and the service cylindrical structure of cylinder, the lower end of pitching case and service cylinder are tightly connected, and the inner cavity of pitching case is connected to the inner cavity of service cylinder, and the upper end of pitching case and gland are tightly connected.Multiple dress ball cylinders are separately fixed at the outer surfaces of pitching case, and the inner cavities of each dress ball cylinder be connected tos with the inner cavity of pitching case in multiple dress ball cylinders, and each axial direction for filling ball cylinder and pitching case is axially vertical, and multiple dress ball cylinders are used to install various sizes of spherical pig.The utility model is by filling the various sizes of spherical pig installed in ball cylinder each, and then when clearing up every pipeline, the spherical pig installed in each dress ball cylinder can be migrated from the inner cavity of the dress ball cylinder to the inner cavity of service cylinder, and then pipeline is cleared up, to improve the cleaning efficiency of a plurality of pipeline.

Description

Ball serving device
Technical field
The utility model relates to pipeline cleanings to lead to ball technical field, in particular to a kind of ball serving device.
Background technique
In order to guarantee the safe transport of pipeline, it will usually carry out the test such as hydraulic pressure, after the completion of pipeline construction with detection pipe Whether road has leakage phenomenon, or determines whether pipeline meets safe transport condition.In order to avoid in work progress in pipeline it is residual Phenomena such as sundries stayed may cause line clogging, to influence the hydraulic pressure test of pipeline as a result, service dress can be first passed through in advance Transmitting spherical pig is set, to clear up the sundries in pipeline.
Currently, service station would generally share a ball serving device, in order to save cost to carry out to various sizes of pipeline Cleaning.However, various sizes of pipeline corresponds to various sizes of spherical pig, it that is to say, when the size difference of pipeline, to pipeline The size for the spherical pig cleared up is also different.For example, the spherical pig having a size of A can only clear up the pipeline having a size of A, Spherical pig having a size of B can only clear up the pipeline having a size of B.In this way, if necessary to clear up a plurality of pipeline, just Need to carry out opening ball serving device, corresponding with the pipeline for clearance spherical pig of installation for every pipeline, thus Reduce the cleaning efficiency of a plurality of pipeline.In addition, the pressure in pipeline is higher, higher due to when clearing up pipeline It is likely to cause personal injury when opening ball serving device under pressure.
Utility model content
In order to solve a plurality of pipeline cleaning low efficiency for clearance, thereby increases and it is possible to because hyperbaric environment be easy to cause operator The problem of injury, the utility model provide a kind of ball serving device.The technical solution is as follows:
On the one hand, a kind of ball serving device is provided, the ball serving device includes: gland, pitching case, service cylinder and multiple dresses Ball cylinder;
The pitching case and the cylindrical structure of service cylinder, the axis of the axial direction of the pitching case and the service cylinder To vertical, the lower end of the pitching case and the service cylinder are tightly connected, and the inner cavity of the pitching case and the service cylinder Inner cavity connection, the upper end of the pitching case and the gland are tightly connected;
The multiple dress ball cylinder is separately fixed at the outer surface of the pitching case, each dress ball cylinder in the multiple dress ball cylinder Inner cavity be connected to the inner cavity of the pitching case, and axial direction and the pitching case of each dress ball cylinder is axially vertical, described more A dress ball cylinder is for installing various sizes of spherical pig.
Optionally, the height that at least two dress ball cylinders in the multiple dress ball cylinder are distributed on the pitching case is different.
Optionally, at least two dress ball cylinders for sustained height being located in the multiple dress ball cylinder are evenly distributed on the pitching On the circumference of case.
Optionally, each dress ball cylinder in the multiple dress ball cylinder includes pitching cylinder, piston, hydraulic cylinder and sealing cover;
The outer surface of one end of the pitching cylinder and the pitching case is tightly connected, the other end of the pitching cylinder with it is described Seal cap sealing connection, the axial direction of the pitching cylinder are axially vertical with the pitching case;
The piston is located at the inner cavity of the pitching cylinder, and the space for insulating the piston two sides, the pitching cylinder The space of interior close pitching case side is used to install the spherical pig of pre-set dimension, one end of the hydraulic cylinder and the piston The upper side far from the pitching case is fixedly connected, and the other end of the hydraulic cylinder passes through the sealing cover with exposed described close The outside of capping, the other end of the hydraulic cylinder are provided with pouring orifice, seal between the hydraulic cylinder and the sealing cover.
Optionally, the one end connecting on the pitching cylinder with the pitching case is provided with turn edge.
Optionally, each dress ball cylinder further includes end cap;
One end on the outer surface of the pitching cylinder close to the sealing cover is provided with circumference boss, the interior table of the end cap Face is in step-like, and the small one end of internal diameter is stuck between the circumference boss and the pitching case on the end cap, on the end cap The big one end of internal diameter is stretched out the circumference boss and is connect with the seal cap sealing.
Optionally, one end on the circumference boss far from the end cap is provided with outer chamfer, on the sealing cover with institute The one end for stating end cap connection is provided with inner chamfer.
Optionally, the outer chamfer and the inner chamfer are circular arc chamfering.
Optionally, the lower end of the pitching case is provided with first flange, is provided with second flange on the service cylinder, described First flange and the second flange are tightly connected.
Technical solution provided by the utility model has the benefit that the utility model by sealing on service cylinder Pitching case is connected, multiple dress ball cylinders are tightly connected in the outer surface of pitching case, in order to pacify respectively in multiple dress ball cylinders Fill various sizes of spherical pig.Since the inner cavity of each dress ball cylinder is connected to the inner cavity of pitching case, the inner cavity of pitching case and hair The inner cavity of ball cylinder is connected to, and the various sizes of spherical pig installed in through multiple dress ball cylinders carries out a plurality of pipeline for clearance When cleaning, the spherical pig installed in multiple dress ball cylinders can migrate from the inner cavity of dress ball cylinder to the inner cavity of service cylinder respectively, into And realize the cleaning to a plurality of pipeline, improve the cleaning efficiency of a plurality of pipeline.Meanwhile it avoiding repeating for every pipeline Open ball serving device, installation spherical pig corresponding with every pipeline size operation during, because hyperbaric environment may be right It is injured caused by operator.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the first ball serving device provided by the embodiment of the utility model;
Fig. 2 is the structural schematic diagram of second of ball serving device provided by the embodiment of the utility model;
Fig. 3 is the overlooking structure diagram of a kind of pitching case provided by the embodiment of the utility model and dress ball cylinder;
Fig. 4 is the structural schematic diagram of the first dress ball cylinder provided by the embodiment of the utility model;
Fig. 5 is the structural schematic diagram of second of dress ball cylinder provided by the embodiment of the utility model;
Fig. 6 is the structural schematic diagram of the third ball serving device provided by the embodiment of the utility model.
Appended drawing reference:
1: gland;2: pitching case;3: service cylinder;4: dress ball cylinder;
41: pitching cylinder;42: piston;43: hydraulic cylinder;44: sealing cover;45: end cap;411: turn edge;412: circumference is convex Platform;413: outer chamfer;431: pouring orifice;441: inner chamfer;
21: first flange;31: second flange.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is described in further detail.
In order to make it easy to understand, before to the utility model embodiment carrying out that explanation is explained in detail, it is first practical new to this The noun that type embodiment is related to is introduced.
Inner chamfer
Inner chamfer refers to the chamfering being arranged between the end face of object and inner surface.For example, connect on sealing cover with end cap The chamfering being arranged between the end face of one end and the inner surface of sealing cover.
Outer chamfer
Outer chamfer refers to the chamfering being arranged between the end face of object and outer surface.For example, close to sealing cover on circumference boss The end face of one end and the outer surface of circumference boss between the chamfering that is arranged.
Next detailed explanation is carried out to the utility model embodiment.
Fig. 1 is a kind of structural schematic diagram of ball serving device provided by the embodiment of the utility model.Referring to Fig. 1, service dress Set includes: gland 1, pitching case 2, service cylinder 3 and multiple dress ball cylinders 4.Pitching case 2 and the service cylindrical structure of cylinder 3, pitching The axial direction of case 2 and service cylinder 3 it is axially vertical, the lower end of pitching case 2 and service cylinder 3 are tightly connected, and the inner cavity of pitching case 2 with The inner cavity connection of service cylinder 3, the upper end of pitching case 2 and gland 1 are tightly connected, and multiple dress ball cylinders 4 are separately fixed at pitching case 2 Outer surface, multiple inner cavities for filling each dress ball cylinder 4 in ball cylinders 4 are connected to the inner cavity of pitching case 2, and the axial direction of each dress ball cylinder 4 Axially vertical with pitching case 2, multiple dress ball cylinders 4 are for installing various sizes of spherical pig.
Wherein, the axial direction of pitching case 2 can with horizontal plane, to guarantee that spherical pig is migrated to the inner cavity of pitching case 2 It can migrate under self gravity to the inner cavity for cylinder 3 of serving a ball.Certainly, the angle between the axial direction and horizontal plane of pitching case 2 can also With less than 90 degree, as long as can guarantee that various sizes of spherical pig is migrated under self gravity to the inner cavity for cylinder 3 of serving a ball, this Utility model embodiment does not limit this.The inner cavity of pitching case 2 can be cylindrical-shaped structure, certainly, the inner cavity of pitching case 2 It can be other shapes, for example quadrangular shape structure, the utility model embodiment do not limit this.
Wherein, when various sizes of spherical pig being installed in multiple dress ball cylinders 4, in order to save the materials of each dress ball cylinder 4, Various sizes of spherical pig can be used various sizes of dress ball cylinder 4 and be installed, and that is to say, multiple dress ball cylinders 4 can with not Multiple spherical pigs with size correspond.Since various sizes of spherical pig is for clearing up various sizes of pipeline, it is more A dress ball cylinder 4 can be corresponded with a plurality of pipeline for clearance.
The utility model embodiment by installing various sizes of spherical pig in multiple dress ball cylinders in advance respectively, due to every The inner cavity of a dress ball cylinder is connected to the inner cavity of pitching case, and the inner cavity of pitching case is connected to the inner cavity of service cylinder, therefore, is being needed When clearing up a plurality of pipeline for clearance, the pipeline for clearance for every, the interior spherical pig installed of dress ball cylinder can edge The inner cavity of dress ball cylinder enters the inner cavity of pitching case, later, enters the inner cavity of service cylinder under the effect of gravity, and then along hair Every pipeline for clearance is cleared up in the inner cavity of ball cylinder, improves the cleaning efficiency of a plurality of pipeline for clearance.Meanwhile for every Pipeline, can be to avoid under hyperbaric environment, because repeatedly opening ball serving device, installation spherical pig corresponding with pipeline for clearance And etc., it may be injured caused by operator.
At least two dresses referring to Fig. 1, when multiple dress ball cylinders 4 are arranged in the outer surface of pitching case 2, in multiple dress ball cylinders 4 The height that ball cylinder 4 is distributed on pitching case 2 can be different.
Wherein, the size for the spherical pig installed along at least two dress ball cylinders 4 that the height of pitching case 2 is distributed can not Together, it in order to avoid top-heavy phenomenon occurs in pitching case 2, that is to say, the pigging that the dress ball cylinder 4 on the top of pitching case 2 is installed The size of ball is greater than the size for the spherical pig that lower part dress ball cylinder 4 is installed, each dress along at least two dress ball cylinders 4 of height distribution The size for the spherical pig that ball cylinder 4 is installed can be sequentially reduced on the direction of the lower end from pitching case 2 to upper end.
Further, referring to fig. 2, the size for the spherical pig installed due to the dress ball cylinder 4 on 2 top of pitching case is smaller, in order to The materials of pitching case 2 are saved, to save cost, pitching case 2 can be stepped along axial direction, to reduce the wall on 2 top of pitching case It is thick.Wherein, the outer diameter of the lower end of pitching case 2 is greater than the outer diameter of upper end.Certainly, pitching case 2 can also be in a circular table shape, as long as can Realize that the outer wall of pitching case 2 is sealed and is fixedly connected with each dress ball cylinder 4, the utility model embodiment does not limit this It is fixed.
Referring to Fig. 3, at least two dress ball cylinders 4 that sustained height is located in multiple dress ball cylinders 4 can be evenly distributed on pitching On the circumference of case 2.
Wherein, ball cylinders 4 are filled for being located at at least two of sustained height, in order to avoid at least two dress ball cylinders 4 and throwing After the outer surface connection of ball case 2, the local strength of the outer surface of pitching case 2 is destroyed, to hold very much under the action of high pressure gas It easily causes and breakage locally occurs, and then probably because high pressure gas leakage damages operator around.Therefore, it is located at At least two dress ball cylinders 4 of sustained height can be uniformly distributed, to guarantee the angle of circumference phase between arbitrary neighborhood two dress ball cylinders 4 Together, to avoid the local strength for destroying pitching case 2 in a circumferential direction.For example, the sustained height on pitching case 2 is equipped with When 2 dress ball cylinders 4, the angle of circumference between two neighboring dress ball cylinder 4 is 180 degree, the sustained height referring to Fig. 3, on pitching case 2 When being equipped with 3 dress ball cylinders 4, the angle of circumference between any two adjacent dress ball cylinder 4 is 120 degree.Certainly, positioned at sustained height At least two dress ball cylinders 4 can also with uneven distribution, as long as can guarantee pitching case 2 outer surface have certain intensity, from And during pipeline cleaning, because of high pressure gas disrepair phenomenon will not occur for pitching case 2.
It should be noted that being located at least two dress ball cylinders 4 of sustained height, there may be two dress ball cylinders 4 for pacifying The spherical pig for same size of pretending can also be installed various sizes of respectively positioned at least two dress ball cylinders 4 of sustained height certainly Spherical pig, the utility model embodiment do not limit this.
Referring to fig. 4, each dress ball cylinders 4 in multiple dress ball cylinders 4 include pitching cylinder 41, piston 42, hydraulic cylinder 43 and close Capping 44.One end of pitching cylinder 41 and the outer surface of pitching case 2 are tightly connected, and the other end and sealing cover 44 of pitching cylinder 41 seal Connection, the axial direction of pitching cylinder 41 and pitching case 2 it is axially vertical, piston 42 is located at the inner cavity of pitching cylinder 41, and is used to insulate work The space of 42 two sides is filled in, is used to install the spherical pig of pre-set dimension, hydraulic cylinder in pitching cylinder 41 close to the space of 2 side of pitching case 43 one end is fixedly connected with the side on piston 42 far from pitching case 2, and the other end of hydraulic cylinder 43 passes through sealing cover 44 with naked It is exposed at the outside of sealing cover 44, the other end of hydraulic cylinder 43 is provided with pouring orifice 431, close between hydraulic cylinder 43 and sealing cover 44 Envelope.
When being cleared up by ball serving device transmitting spherical pig a plurality of pipeline for clearance, for multiple dress ball cylinders 4 kinds of any dress ball cylinder 4, can to dress ball cylinder 4 pouring orifice 431 in oiling, with by hydraulic cylinder 43 push piston 42, in turn Spherical pig is pushed to the inner cavity of pitching case 2.
Wherein, it can be attached by screw thread between pitching cylinder 41 and pitching case 2, and can be by the way that seal washer is arranged Or sealant etc. realizes the sealing between pitching cylinder 41 and pitching case 2.The axial direction of pitching cylinder 41 and the axial direction of pitching case 2 can hang down Directly, in this way, the axial direction of pitching cylinder 41 is parallel to the horizontal plane, so as to avoid the spherical pig installed in pitching cylinder 41 from rolling It is dynamic.After one end of pitching cylinder 41 and the outer surface of pitching case 2 are tightly connected, the inner cavity of pitching cylinder 41 and the inner cavity of pitching case 2 connect It is logical, in order to which spherical pig can be pushed to the inner cavity of pitching case 2 along the inner cavity of pitching cylinder 41.Due to the other end of pitching cylinder 41 It is tightly connected with sealing cover 44, and is sealed between hydraulic cylinder 43 and sealing cover 44, to realize to the close of the inner cavity of pitching cylinder 41 Envelope, avoids high pressure gas during pipeline cleaning from leaking.
Wherein, pre-set dimension can be configured based on the size of the corresponding pipeline for clearance of each dress ball cylinder 4.For example, The size of the corresponding pipeline for clearance of first dress ball cylinder 4 is A, then the pre-set dimension for the spherical pig installed in the first dress ball cylinder 4 is The size of A, the corresponding pipeline for clearance of the first dress ball cylinder 4 are B, then the pre-set dimension for the spherical pig installed in the first dress ball cylinder 4 For B.
Wherein, referring to fig. 4, for the spherical pig installed in each dress ball cylinder 4, in order to avoid the ball serving device shakes It is dynamic, rolled so as to cause spherical pig in the inner cavity of pitching cylinder 41, and roll to the inner cavity of pitching case 2, on pitching cylinder 41 and Turn edge 411 has can be set in one end that pitching case 2 connects, in order to which the rolling of spherical pig can be hindered by turn edge 411, Spherical pig is avoided to roll to the inner cavity of pitching case 2.
Wherein, turn edge 411 can have elasticity, in order to which when piston 42 pushes spherical pig, turn edge 411 can be sent out Raw deformation, to guarantee that spherical pig is rolled to the inner cavity of pitching case 2.Certainly, the opening of turn edge 411 can also be greater than spherical pig Diameter, the utility model embodiment is not construed as limiting this.
Referring to Fig. 5, each dress ball cylinder 4 can also include end cap 45, close sealing cover 44 on the outer surface of pitching cylinder 41 One end is provided with circumference boss 412, and the inner surface of end cap 45 is in step-like, and the small one end of internal diameter is stuck in circumference boss on end cap 45 Between 412 and pitching case 2, one end that internal diameter is big on end cap 45 is stretched out circumference boss 412 and is tightly connected with sealing cover 44.
Wherein, it can be threadingly attached between end cap 45 and sealing cover 44, it is of course also possible to its other party Formula is attached, as long as the sealing of the inner cavity of pitching cylinder 41 may be implemented, the utility model embodiment is not limited this.
It should be noted that when the one end and sealing cover 44 for stretching out circumference boss 412 on end cap 45 are tightly connected, due to The small one end of internal diameter is stuck between circumference boss 412 and pitching case 2 on end cap 45, end face and the end cap 45 of circumference boss 412 Sealing is squeezed between step surface, sealing is squeezed between the end face of sealing cover 44 and the end face of pitching cylinder 41, and sealing cover 44 is outer It is sealed between surface and the inner surface of end cap 45, to increase the leakproofness of the inner cavity of pitching cylinder 41.
Further, referring to Fig. 5, one end on circumference boss 412 far from end cap 45 is provided with outer chamfer 413, sealing cover The one end connecting on 44 with end cap 45 is provided with inner chamfer 441.
Wherein, close due to being provided with outer chamfer 413 on circumference boss 412 when end cap 45 and sealing cover 44 are tightly connected It is provided with inner chamfer 441 in capping 44, in this way, can increase between the end face of circumference boss 412 and the end face of sealing cover 44 Contact area, to further improve the leakproofness to the inner cavity of pitching cylinder 41.
Wherein, referring to Fig. 5, when outer chamfer 413 and inner chamfer 441 are circular arc chamfering, sealing cover 44 and end cap 45 exist Contact surface is ascending during sealed connection, at this point, the deformation quantity of contact surface is maximum between sealing cover 44 and end cap 45, in turn It can guarantee the better tightness of the inner cavity of pitching cylinder 41.Certainly, outer chamfer 413 and inner chamfer 441 also can straight chamfering, this Utility model embodiment does not limit this.
Referring to Fig. 6, for the ease of the installation of pitching case 2, first flange 21 has been can be set in the lower end of pitching case 2, service Second flange 31 can be set on cylinder 3, first flange 21 and second flange 31 are tightly connected.
Wherein, it can be connected by bolt seal between first flange 21 and second flange 31, it is of course also possible to pass through Buckle, which is realized, to be tightly connected, and when being tightly connected first flange 21 and second flange 31, seal washer or sealant can be set, To improve the sealing performance between first flange 21 and second flange 31.
In the utility model embodiment, by being tightly connected pitching case on service cylinder, sealed in the outer surface of pitching case Multiple dress ball cylinders are connected, in order to can disposably install the spherical pig of multiple and different sizes in multiple dress ball cylinders.Due to every The inner cavity of a dress ball cylinder is connected to the inner cavity of pitching case, and the inner cavity of pitching case is connected to the inner cavity of service cylinder, by each When the spherical pig installed in dress ball cylinder clears up pipeline for clearance, oiling can be carried out by filling the pouring orifice of ball cylinder, With by Hydraulic Cylinder piston, and then spherical pig is pushed to the inner cavity of pitching case, and the gravity based on spherical pig itself falls The inner cavity of service cylinder is dropped down onto, and then realizes the cleaning to pipeline for clearance, avoids repeating for various sizes of pipeline The operation for opening ball serving device, installation spherical pig corresponding with line size for clearance improves the cleaning effect of a plurality of pipeline Rate.In addition, since pitching case is tightly connected with service cylinder, gland and each dress ball cylinder respectively respectively, so as to spherical pig Migration pathway be sealed, and then can be to avoid high pressure gas leakage during pipeline cleaning in ball serving device to week Enclose injury caused by operator.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (9)

1. a kind of ball serving device, which is characterized in that the ball serving device includes: gland, pitching case, service cylinder and multiple dress balls Cylinder;
The axial direction of the pitching case and the cylindrical structure of service cylinder, the axial direction of the pitching case and the service cylinder is hung down Directly, the lower end of the pitching case and the service cylinder are tightly connected, and the inner cavity of the inner cavity of the pitching case and the service cylinder Connection, the upper end of the pitching case and the gland are tightly connected;
The multiple dress ball cylinder is separately fixed at the outer surface of the pitching case, and each dress ball cylinder is interior in the multiple dress ball cylinder Chamber is connected to the inner cavity of the pitching case, and the axial direction and axially vertical, the multiple dress of the pitching case of each dress ball cylinder Ball cylinder is for installing various sizes of spherical pig.
2. ball serving device as described in claim 1, which is characterized in that at least two dress ball cylinders in the multiple dress ball cylinder exist The height being distributed on the pitching case is different.
3. ball serving device as claimed in claim 1 or 2, which is characterized in that be located at sustained height in the multiple dress ball cylinder At least two dress ball cylinders are evenly distributed on the circumference of the pitching case.
4. ball serving device as described in claim 1, which is characterized in that it is the multiple dress ball cylinder in each dress ball cylinder include Pitching cylinder, piston, hydraulic cylinder and sealing cover;
One end of the pitching cylinder and the outer surface of the pitching case are tightly connected, the other end of the pitching cylinder and the sealing Lid is tightly connected, and the axial direction of the pitching cylinder is axially vertical with the pitching case;
The piston is located at the inner cavity of the pitching cylinder, and the space for insulating the piston two sides, leans in the pitching cylinder The space of nearly pitching case side is used to install the spherical pig of pre-set dimension, remote on one end of the hydraulic cylinder and the piston Side from the pitching case is fixedly connected, and the other end of the hydraulic cylinder passes through the sealing cover with exposed in the sealing cover Outside, the other end of the hydraulic cylinder is provided with pouring orifice, seals between the hydraulic cylinder and the sealing cover.
5. ball serving device as claimed in claim 4, which is characterized in that the one end being connect on the pitching cylinder with the pitching case It is provided with turn edge.
6. ball serving device as claimed in claim 4, which is characterized in that each dress ball cylinder further includes end cap;
One end on the outer surface of the pitching cylinder close to the sealing cover is provided with circumference boss, and the inner surface of the end cap is in Step-like, the small one end of internal diameter is stuck between the circumference boss and the pitching case on the end cap, internal diameter on the end cap Big one end is stretched out the circumference boss and is connect with the seal cap sealing.
7. ball serving device as claimed in claim 6, which is characterized in that one end on the circumference boss far from the end cap is set It is equipped with outer chamfer, the one end connecting on the sealing cover with the end cap is provided with inner chamfer.
8. ball serving device as claimed in claim 7, which is characterized in that the outer chamfer and the inner chamfer are that circular arc falls Angle.
9. ball serving device as described in claim 1, which is characterized in that the lower end of the pitching case is provided with first flange, institute It states and is provided with second flange on service cylinder, the first flange and the second flange are tightly connected.
CN201820596605.5U 2018-04-24 2018-04-24 ball serving device Active CN208331554U (en)

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CN201820596605.5U CN208331554U (en) 2018-04-24 2018-04-24 ball serving device

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Application Number Priority Date Filing Date Title
CN201820596605.5U CN208331554U (en) 2018-04-24 2018-04-24 ball serving device

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Publication Number Publication Date
CN208331554U true CN208331554U (en) 2019-01-04

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397821A (en) * 2018-04-24 2019-11-01 中国石油天然气集团有限公司 Ball serving device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397821A (en) * 2018-04-24 2019-11-01 中国石油天然气集团有限公司 Ball serving device

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