阅读说明：本技术 一种用于输油管道的外衬套式笼套节流阀 (Outer bushing type cage sleeve throttling valve for oil conveying pipeline ) 是由 陈兆阳 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种用于输油管道的外衬套式笼套节流阀,包括阀体、顶盖、固定螺母一、转把、加强筋、紧固螺母、安装耳、固定螺母二、法兰盘、螺杆、限流块、缓震装置、顶板、底板、限位块、限位槽、限位杆、压缩弹簧一、入口通道、节流孔、出口通道、伸缩杆和压缩弹簧二。本发明的有益效果是：安装耳上固定设置有限位孔,顶盖的两端均固定设置有限位凸起,便于提高顶盖的安装效率,伸缩杆设置有两个,便于对限流块进行缓冲,节流孔设置有若干个,且节流孔按照孔径大小依次排列,便于缓解阀体的内部压力,缓震装置设置有两个,且分别位于限流块的两侧,便于在下降时,对阀体进行缓冲保护,转把的外表面设置有防滑纹,便于进行操作。(The invention discloses an outer bushing type cage sleeve throttling valve for an oil conveying pipeline, which comprises a valve body, a top cover, a first fixing nut, a rotating handle, a reinforcing rib, a fastening nut, a mounting lug, a second fixing nut, a flange plate, a screw rod, a flow limiting block, a cushioning device, a top plate, a bottom plate, a limiting block, a limiting groove, a limiting rod, a first compression spring, an inlet channel, a throttling hole, an outlet channel, a telescopic rod and a second compression spring. The invention has the beneficial effects that: the fixed spacing hole that is provided with on the installation ear, the both ends of top cap are all fixed and are provided with spacing arch, be convenient for improve the installation effectiveness of top cap, the telescopic link is provided with two, be convenient for cushion the current-limiting piece, the orifice is provided with a plurality of, and the orifice arranges according to the aperture size in proper order, be convenient for alleviate the internal pressure of valve body, the bradyseism device is provided with two, and be located the both sides of current-limiting piece respectively, be convenient for when descending, cushion the protection to the valve body, the surface of changeing the handle is provided with anti-skidding line, be convenient.)

1. An outer bushing type cage sleeve throttling valve for an oil pipeline is characterized in that: the shock absorber comprises a valve body (1), a top cover (2), a first fixing nut (3), a rotating handle (4), a reinforcing rib (5), a fastening nut (6), a mounting lug (7), a second fixing nut (8), a flange plate (9), a screw (10), a flow limiting block (11), a shock absorber (12), a top plate (13), a bottom plate (14), a limiting block (15), a limiting groove (16), a limiting rod (17), a first compression spring (18), an inlet channel (19), a throttling hole (20), an outlet channel (21), a telescopic rod (22) and a second compression spring (23); the device comprises a valve body (1), a top cover (2), an inlet channel (19) and an outlet channel (21) which form a main structure of the device, wherein the top cover (2) is fixedly arranged at the upper end of the valve body (1), an installation lug (7) arranged on the valve body (1) is fixedly arranged at the lower side of the top cover (2), the top cover (2) is fixedly connected with the valve body (1) through a fastening nut (6), a fixing nut I (3) is arranged at the upper side of the top cover (2), a screw rod (10) is connected with the inner side of the fixing nut I (3) in a threaded manner, a rotating handle (4) is fixedly arranged at the upper end of the screw rod (10), a reinforcing rib (5) is fixedly connected with the lower side of the rotating handle (4), a fixing nut II (8) fixedly connected inside the valve body (1) is arranged at the lower side of the screw rod (10), and an internal thread, the lower side of the screw rod (10) is fixedly connected with a current limiting block (11), the lower side of the current limiting block (11) is fixedly provided with a shock absorption device (12), the shock absorption device (12) comprises a top plate (13) and a bottom plate (14), the opposite sides of the top plate (13) and the bottom plate (14) are fixedly connected with limiting blocks (15) correspondingly, a compression spring I (18) is fixedly connected between the two limiting blocks (15), a limiting groove (16) is fixedly arranged at the center of the lower surface of the top plate (13), a limiting rod (17) is fixedly connected at the center of the upper surface of the bottom plate (14), the limiting rod (17) is matched with the limiting groove (16), an expansion rod (22) is fixedly connected at the upper side of the current limiting block (11), a compression spring II (23) is sleeved at the outer side of the expansion rod (22), and a flange plate (9) is fixedly connected to the side surface, an inlet channel (19) is fixedly formed in the flange plate (9), a throttling hole (20) formed in the valve body (1) is formed in the inner side of the inlet channel (19), and an outlet channel (21) is fixedly formed in the lower end of the valve body (1).

2. An externally lined cage-sleeve choke valve for oil pipelines according to claim 1, characterized in that: the mounting lug (7) is fixedly provided with a limiting hole, the two ends of the top cover (2) are fixedly provided with limiting bulges, and the limiting hole is matched with the limiting bulges.

3. An externally lined cage-sleeve choke valve for oil pipelines according to claim 1, characterized in that: the number of the telescopic rods (22) is two, and the two telescopic rods are symmetrically distributed on two sides of the screw rod (10) respectively.

4. An externally lined cage-sleeve choke valve for oil pipelines according to claim 1, characterized in that: the throttle holes (20) are provided with a plurality of throttle holes, and the throttle holes (20) are arranged in sequence according to the aperture size.

5. An externally lined cage-sleeve choke valve for oil pipelines according to claim 1, characterized in that: the two shock absorption devices (12) are respectively positioned on two sides of the flow limiting block (11).

6. An externally lined cage-sleeve choke valve for oil pipelines according to claim 1, characterized in that: the outer surface of the rotating handle (4) is provided with anti-skid grains.

Technical Field

The invention relates to a throttling valve, in particular to an outer bushing type cage sleeve throttling valve for an oil conveying pipeline, and belongs to the technical field of oil and gas exploitation.

Background

In the petroleum industry, crude oil or natural gas is produced from the bottom of a well, transported to a crude oil or natural gas treatment plant for treatment through a transport pipe on a wellhead device, and then transported to a refinery, chemical plant or residential area for further processing and use. Because the pressure of the raw oil gas produced at the bottom of the well is higher, the requirement of pipeline transportation cannot be met, and the throttling valve is arranged at the outlet of the wellhead device for producing oil gas, so that the pressure of oil gas can be reduced.

The throttle valve has various types, the cage type throttle valve is one of the throttle valves, and the existing cage type throttle valve lacks a necessary shock absorption mechanism when in use, so that collision friction between the flow limiting block and the valve body frequently cannot be ensured, and the service life of the throttle valve is further shortened.

Disclosure of Invention

The present invention aims to solve the above problems by providing an outer liner type cage throttle for oil pipelines.

The invention realizes the purpose through the following technical scheme: an outer bushing type cage sleeve throttle valve for an oil conveying pipeline comprises a valve body, a top cover, a first fixing nut, a rotating handle, reinforcing ribs, fastening nuts, mounting lugs, a second fixing nut, a flange plate, a screw rod, a flow limiting block, a cushioning device, a top plate, a bottom plate, a limiting block, a limiting groove, a limiting rod, a first compression spring, an inlet channel, a throttling hole, an outlet channel, a telescopic rod and a second compression spring; the valve body, the top cover, the inlet channel and the outlet channel form a main body structure of the device, the top cover is fixedly arranged at the upper end of the valve body, the lower side of the top cover is fixedly provided with an installation lug arranged on the valve body, the top cover is fixedly connected with the valve body through a fastening nut, a first fixing nut is arranged on the upper side of the top cover, a screw rod is connected with the inner side of the first fixing nut in a threaded manner, a rotating handle is fixedly arranged at the upper end of the screw rod, a reinforcing rib is fixedly connected with the lower side of the rotating handle, a second fixing nut fixedly connected inside the valve body is arranged on the lower side of the screw rod, an inner thread matched with the screw rod in a threaded manner is arranged on the second fixing nut, a flow limiting block is fixedly connected with the lower side of the screw rod, a shock absorption device is fixedly arranged on the, two the rigid coupling has compression spring one between the stopper, the lower surface central point of roof puts the fixed spacing groove that is provided with, and the upper surface center fixedly connected with gag lever post of department of bottom plate, the gag lever post with the spacing groove cooperatees, the upside rigid coupling of restriction piece has the telescopic link, compression spring two has been cup jointed in the outside of telescopic link, the side fixedly connected with ring flange of valve body, the fixed access way of having seted up in the inside of ring flange, access way's inboard is provided with sets up the orifice inside the valve body, and the fixed exit channel that is provided with of lower extreme of valve body.

Preferably, in order to facilitate the improvement of the installation efficiency of the top cover, the installation lug is fixedly provided with a limiting hole, the two ends of the top cover are fixedly provided with limiting bulges, and the limiting hole is matched with the limiting bulges.

Preferably, in order to facilitate when the screw rod rises, cushion the current-limiting block, avoid frequently changing the current-limiting block, it is more convenient to use, the telescopic link is provided with two, and respectively symmetric distribution is in the both sides of screw rod.

Preferably, in order to facilitate the release of the internal pressure of the valve body and further ensure that the mining can be smoothly carried out, the throttling holes are provided with a plurality of throttling holes, and the throttling holes are sequentially arranged according to the aperture size.

Preferably, in order to facilitate the buffer protection of the valve body during descending, two shock absorbers are provided and are respectively located on two sides of the flow limiting block.

Preferably, in order to facilitate the operation, the outer surface of the rotating handle is provided with anti-skid grains.

The invention has the beneficial effects that: this kind of an outer bush formula cage sleeve throttle valve for oil pipeline reasonable in design, the fixed spacing hole that is provided with on the installation ear, the both ends of top cap are all fixed and are provided with spacing arch, and spacing hole and spacing arch mutually support, be convenient for improve the installation effectiveness of top cap, the telescopic link is provided with two, and respectively symmetric distribution is in the both sides of screw rod, be convenient for when the screw rod rises, cushion the current-limiting block, avoid frequently changing the current-limiting block, it is more convenient to use, the orifice is provided with a plurality of, and the orifice is arranged according to the aperture size in proper order, be convenient for alleviate the internal pressure of valve body, and then guarantee that the exploitation can go on smoothly, the bradyseism device is provided with two, and be located the both sides of current-limiting block respectively, be convenient for when descending, carry out the buffer protection to the valve body.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of a shock absorber according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is a schematic top view of the inventive mounting ear.

In the figure: 1. the damping valve comprises a valve body, 2, a top cover, 3, a first fixing nut, 4, a rotating handle, 5, a reinforcing rib, 6, a fastening nut, 7, an installation lug, 8, a second fixing nut, 9, a flange plate, 10, a screw rod, 11, a flow limiting block, 12, a damping device, 13, a top plate, 14, a bottom plate, 15, a limiting block, 16, a limiting groove, 17, a limiting rod, 18, a first compression spring, 19, an inlet channel, 20, a throttling hole, 21, an outlet channel, 22, a telescopic rod and a second compression spring 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, an outer bushing type cage sleeve throttle valve for an oil pipeline comprises a valve body 1, a top cover 2, a first fixing nut 3, a rotating handle 4, a reinforcing rib 5, a fastening nut 6, a mounting lug 7, a second fixing nut 8, a flange plate 9, a screw rod 10, a flow limiting block 11, a cushioning device 12, a top plate 13, a bottom plate 14, a limiting block 15, a limiting groove 16, a limiting rod 17, a first compression spring 18, an inlet channel 19, a throttle orifice 20, an outlet channel 21, a telescopic rod 22 and a second compression spring 23; the upper end of the valve body 1 is fixedly provided with the top cover 2, the lower side of the top cover 2 is fixedly provided with an installation lug 7 installed on the valve body 1, the top cover 2 is fixedly connected with the valve body 1 through a fastening nut 6, the upper side of the top cover 2 is provided with a first fixing nut 3, the inner side of the first fixing nut 3 is in threaded connection with a screw rod 10, the upper end of the screw rod 10 is fixedly provided with a rotating handle 4, the lower side of the rotating handle 4 is fixedly connected with a reinforcing rib 5, the lower side of the screw rod 10 is provided with a second fixing nut 8 fixedly connected inside the valve body 1, the second fixing nut 8 is provided with an inner thread in threaded fit with the screw rod 10, the lower side of the screw rod 10 is fixedly connected with a current limiting block 11, the lower side of the current limiting block 11 is fixedly provided with a shock absorption device 12, the shock absorption device 12 comprises a top plate 13 and a bottom plate 14, the opposite side of roof 13 and bottom plate 14 all corresponds the rigid coupling and has stopper 15, two the rigid coupling has a compression spring 18 between the stopper 15, the lower surface central point of roof 13 puts the fixed spacing groove 16 that is provided with, and the upper surface center fixedly connected with gag lever post 17 of bottom plate 14 department, gag lever post 17 with spacing groove 16 cooperatees, the upside rigid coupling of restriction piece 11 has telescopic link 22, compression spring two 23 has been cup jointed in the outside of telescopic link 22, the side fixedly connected with ring flange 9 of valve body 1, inlet channel 19 has been seted up to the inside of ring flange 9 is fixed, inlet channel 19's inboard is provided with sets up orifice 20 in 1 inside of valve body, and the fixed exit channel 21 that is provided with of lower extreme of valve body 1.

The fixed spacing hole that is provided with on installation ear 7, the both ends of top cap 2 are all fixed to be provided with spacing arch, and spacing hole and spacing arch mutually support, are convenient for improve top cap 2's installation effectiveness, telescopic link 22 is provided with two, and symmetric distribution is in the both sides of screw rod 10 respectively, is convenient for when screw rod 10 rises, cushions current-limiting block 11, avoids frequently changing current-limiting block 11, and it is more convenient to use, orifice 20 is provided with a plurality of, and orifice 20 arranges in proper order according to the aperture size, is convenient for alleviate the internal pressure of valve body 1, and then guarantees that the exploitation can go on smoothly, bradyseism device 12 is provided with two, and is located current-limiting block 11's both sides respectively, is convenient for when descending, carries out the buffer protection to valve body 1, it is provided with anti-skid veins to change 4's surface, is.

The working principle is as follows: when the external bushing type cage sleeve throttling valve for the oil conveying pipeline is used, when fluid enters from an inlet channel 19 of a valve body 1, the cage sleeve is firstly contacted, at the moment, a screw rod 10 is adjusted, a flow limiting block 11 is controlled to move upwards slowly, a circular throttling hole 20 on the cage sleeve is exposed, as a plurality of throttling holes 20 are arranged, and the throttling holes 20 are sequentially arranged according to the aperture size, the internal pressure of the valve body 1 is well relieved, finally, the fluid flows out from an outlet channel 21, the flow limiting block 11 is protected by a certain shock absorption in the lifting process, when the flow limiting block 11 rises, the flow limiting block 11 firstly presses a telescopic rod 22, a compression spring II 23 arranged on the outer side of the telescopic rod 22 is compressed and deformed, then a part of pressure is dispersed, and similarly, when the flow limiting block 11 descends, the shock absorption device 12 is pressed by the flow limiting block 11, so that a top plate 13 and a bottom plate 14 are close to each, the flow limiting block 11 is protected by the elastic counterforce of the first compression spring 18, frequent replacement of the flow limiting block 11 is avoided, and the use is convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.