CN2420420Y

CN2420420Y - High efficiency polished rod seal capable of automatic collecting oil

Info

Publication number: CN2420420Y
Application number: CN 00211428
Authority: CN
Inventors: 陈志国
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-05
Filing date: 2000-04-05
Publication date: 2001-02-21
Anticipated expiration: 2010-04-05

Abstract

The utility model relates to a high efficiency polished rod sealer capable of automatic collecting oil for the production of a pumping well, which is composed of a piston pressure plate 1, a packing set box cover 2, a packing set gland 3, an upper, a middle and a lower packing set boxes 7, 10 and 13, a primary, a secondary and a threestage packing sets 4, 5, 11 and 12, an upper gland 6 of a secondary packing set spring, a lower gland 9, a secondary and a threesatage packing set pressure springs 8 and 14, and a piston cylinder 22, a piston body 19, a top cover 24 of the piston cylinder, a lower sealing cover 17, a piston pressure restoring spring 21, an upper gland 23 of a piston and a piston pressure rod 25, a check valve 16 and a discharging valve 18 which are arranged in parallel. The utility model has novel structure. When the utility model is used, good sealing of high efficiency can be realized to a well opening of the pumping well. Regular production of an oil well the can be assured, and in addition, crude oil can be automatically recovered under the condition that oil leakage occurs when once, waste and the pollution of the well opening can be avoided.

Description

Can receive the efficient polished rod sealer of oil automatically

The utility model relates to a kind of wellhead assembly that pumpingh well is produced that is used for.

Polished rod sealer is to guarantee the requisite important device of pumpingh well ordinary production.At present, field by using the polished rod sealer of various different structures, these polished rod sealers are under the prerequisite that guarantees the sealing of pumpingh well well head, have different characteristics and function separately, such as with inclined to one side antifriction, high pressure blowout prevention, easy sabot root etc., but still there are deficiencies such as sealing performance is not ideal enough, oil recovery worker management and maintenance workload is bigger to some extent, particularly cause the interior crude oil of well to leak owing to sealing is bad, well head cleaning, maintenance workload had both been increased, cause the waste of well head environment pollution and crude oil again, influence the oil well ordinary production.

The purpose of this utility model is to provide a kind of good seal performance and has the efficient polished rod sealer that can receive oil automatically that reclaims the former functional oil that leaks where necessary automatically concurrently.

The utility model is to realize like this.This kind polished rod sealer comprises the body seal part and is arranged on oily part two parts of additional receipts of one side.Wherein the body seal part is made up of piston pressure plate, packing lid, packing gland, one, two, three sealed packing, upper, middle and lower packing box, the upper and lower gland of secondary packing spring, secondary packing compression spring, three grades of packing_seal springs; Receiving the oil tank part is made up of piston pressure bar, piston upper press cover, piston body, piston pressure return spring, dividing plate, piston cylinder, piston cylinder top cover, atmospheric valve, piston lower sealing cover and ball-and-seat; Two parts are set up in parallel, and are provided with therebetween a level communicating pipe and one fixedly to use support bar.During use, be installed on the polished rod hourglass head packing box lower end under this device hermetic unit and the production tree top of packing into, pumpingh well can put into production.Owing to be provided with three grades of packings and two wiper seal springs in this device upper, middle and lower packing box, make its sealing performance that bigger enhancing be arranged.The receipts oil part of this device is that a kind of of main part replenished, that is, play oil storage and be pressed into the effect of petroleum pipeline in reason sealing performance variation such as main part are long because of service time, component aging, malfunctioning, in case take place under the situation that crude oil leaks.At this moment, the spring pressure bar on this part top, piston body are pressed into petroleum pipeline with hermetic unit by the crude oil that enters communicating pipe in the piston cylinder by means of the descending pressure of polished rod, thereby reach automatic receipts oil and prevent the purpose that well head pollutes.

The utility model modern design, rational in infrastructure, utilize it not only can realize efficient good sealing to the pumpingh well well head, guarantee the oil well ordinary production, in a single day and can take place to reclaim crude oil under the well head leakage situation automatically, avoid waste and the well head pollution, increase economic efficiency, be suitable for and apply.

Accompanying drawing is a general structure schematic diagram of the present utility model.Among the figure, label " 15 " is the hourglass head that is connected with polished rod and fixing pressure cap thereof, and label " 26 ", " 27 " are respectively polished rod clamp and polished rod.

Below in conjunction with accompanying drawing enforcement of the present utility model is described further.

As shown in the figure, the utility model is by piston pressure plate 1, packing lid 2, packing gland 3, primary seal packing 4, packing 5 on the secondary seal, secondary packing spring upper press cover 6, last packing box 7, secondary packing compression spring 8, secondary packing lower cover 9, middle packing box 10, packing 11 under the secondary seal, three grades of packings 12, following packing box 13, three grades of packing_seal springs 14, ball-and-seat 16, piston cylinder lower sealing cover 17, atmospheric valve 18, piston body 19, dividing plate 20, piston pressure return spring 21, piston cylinder 22, piston upper press cover 23, piston cylinder top cover 24, piston pressure bar 25 is formed, its structure, the assembling feature is as follows: go up on the packing box 7, the lower end links to each other with middle packing box 10 upper ends with packing lid 2 by screw thread respectively, middle packing box 10 lower ends link to each other with following packing box 13 upper ends by screw thread, and following packing box 13 lower ends are installed on the sucker rod polished rod hourglass head 15; Place, in, following packing box 7,10, be set with packing gland 3 from top to bottom successively on the polished rod 27 in 13, primary seal packing 4, packing 5 on the secondary seal, secondary packing spring upper press cover 6, packing compression spring 8, secondary packing lower cover 9, packing 11 under the secondary seal, three grades of packings 12, three grades of packing_seal springs 14, the polished rod 27 top suits one piston pressure plate 1 of polished rod clamp 26 belows, wherein, one-level packing 4 and three grades of packings 12 are major part upwards, the microcephaly places downwards, two secondary packings 5 and 11 be a microcephaly upwards, major part is downward, another major part upwards, the microcephaly is down staggered relatively, be arranged with attacker's handle on two shaped as frames on three packing box peripheries respectively, each packing all adopts rubber, the two kinds of materials that connect up are synthetic to be made; Middle packing box 10 1 sides are provided with a piston cylinder 22 with it and with being listed in, are provided with one between the two and are communicated with short tube, its below welding one fixing support bar of using; Be provided with piston body 19 in the piston cylinder 22, its top is provided with dividing plate 20, piston pressure spring 21 and piston upper press cover 23, stretch out outside the piston cylinder piston pressure plate 28 that its upper end suit one and piston pressure plate 1 are synchronous with piston body 19 heavy direct-connected all-in-one-piece piston pressure bars 25 upper ends; Piston cylinder 22 upper and lower ends are equipped with respectively on the pipeline that piston cylinder top cover 24 and piston cylinder lower sealing cover 17, one sides and bottom pick out by screw thread and are respectively equipped with gate gurgle valve 18 and ball-and-seat 16.

Claims

1, a kind of efficient polished rod sealer that can receive oil automatically, by packing lid (2), packing gland (3), primary seal packing (4), secondary seal packing (5), go up, middle packing box (7), (10) form, it is characterized in that: go up packing box (7) upper and lower end and link to each other with middle packing box (10) upper end with packing lid (2) by screw thread respectively, middle packing box (10) lower end links to each other with following packing box (13) upper end by screw thread, and following packing box (13) lower end is installed on the sucker rod polished rod hourglass head (15); Place and be set with on packing gland (3), primary seal packing (4), the secondary seal packing (11), three grades of packings (12), three grades of packing_seal springs (14) under packing (5), secondary packing spring upper press cover (6), packing compression spring (8), secondary packing lower cover (9), the secondary seal, polished rod (27) the top suit one piston pressure plate (1) of polished rod clamp (26) below on the polished rod (27) in the upper, middle and lower packing box (7), (10), (13) from top to bottom successively; Middle packing box (10) one sides are provided with a piston cylinder (22) with it side by side, are provided with one between the two and are communicated with short tube, its below welding one support bar; Be provided with piston body (19) in the piston cylinder (22), its top is provided with dividing plate (20), piston pressure spring (21) and piston upper press cover (23), heavily stretch out outside the piston cylinder (22) on piston pressure bar (25) top that fuses of direct join the piston pressure plate (28) of its upper end suit one and piston pressure plate (1) synchronous operation with piston body (19); Piston cylinder (22) upper and lower end is equipped with piston cylinder top cover (24) and lower sealing cover (17) respectively by screw thread, is respectively equipped with gate gurgle valve (18) and ball-and-seat (16) on the pipeline that a side and bottom pick out.