CN201963239U - Automatic closer preventing sleeve liquid from overflowing - Google Patents

Abstract

The utility model relates to an automatic closer preventing sleeve liquid from overflowing, which belongs to the field of devices preventing the sleeve liquid from overflowing, and comprises a wellhead oil tube, a diversion circular frame, a sealing retaining ring and a lower limit ring; the diversion circular frame is fixedly sleeved on the short-circuit lower edge of the upper end of the wellhead oil tube; the sealing retaining ring is sleeved on the wellhead oil tube below the diversion circular frame in a sliding way; and the limit ring is fixed on the wellhead oil tube below the sealing retaining ring. In the sealing retaining ring, a pontoon is sleeved on the periphery of a slide sleeve, and seal baffles are embedded on the upper end surfaces of the slide sleeve and the pontoon. The automatic closer preventing the sleeve liquid from overflowing has a reasonable structural design, can prevent the phenomenon that oil is splashed from a wellhead because the liquid level in the sleeve is too high, and the occurrence of oil stealing incidents is avoided.

Description

The anti-excessive safety shutoff of sleeve pipe liquid

Technical field

The utility model belongs to the anti-excessive device of sleeve pipe liquid, particularly relates to the excessive safety shutoff of a kind of anti-sleeve pipe liquid.

Background technology

In the oil well, connect by the sleeve pipe short circuit between production tree and sleeve pipe, but existing oil pipe, sleeve pipe since cooperate unreasonable, when being full of liquid in the sleeve pipe, overflow easily and cause environment pollution.In addition, the stolen phenomenon also appears easily.

Summary of the invention

The utility model is intended to overcome the deficiencies in the prior art, provides a kind of anti-sleeve pipe liquid excessive safety shutoff.

The excessive safety shutoff of anti-sleeve pipe liquid of the present utility model, be to constitute by well head oil pipe, water conservancy diversion ring stand, Sealing shield ring and lower limit ring, at place, the lower edge of the upper end of well head oil pipe short circuit fixedly suit the water conservancy diversion ring stand, on the well head oil pipe under the water conservancy diversion ring stand slip suit Sealing shield ring, on the well head oil pipe under the Sealing shield ring, be fixed with spacing ring.

As further improvement of the utility model, on the circumference of water conservancy diversion ring stand, longitudinal hole is arranged, the ring of water conservancy diversion ring stand on week setting-in joint ring.

As further improvement of the utility model, described Sealing shield ring be at the periphery suit of sliding sleeve the float tube, on the upper surface of sliding sleeve and float tube, be embedded with sealing plate.

The excessive safety shutoff of anti-sleeve pipe liquid of the present utility model, can prevent that liquid level in the sleeve pipe is too high and the well head fuel injection event that takes place, the generation of also having stopped the stolen incident at reasonable in design.

Description of drawings

Figure of description is the structural representation of the excessive safety shutoff of anti-sleeve pipe liquid of the present utility model.

The specific embodiment

The excessive safety shutoff of anti-sleeve pipe liquid of the present utility model, be to constitute by well head oil pipe 1, water conservancy diversion ring stand 2, Sealing shield ring 3 and lower limit ring 4, at place, the lower edge of the upper end of well head oil pipe 1 short circuit 5 fixedly suit water conservancy diversion ring stand 2, longitudinal hole 6 is arranged on the circumference of water conservancy diversion ring stand 2, the ring of water conservancy diversion ring stand 2 on week setting-in joint ring 7.On the well head oil pipe 1 under the water conservancy diversion ring stand 2 the slip suit Sealing shield ring 3, on the well head oil pipe 1 under the Sealing shield ring 3, be fixed with spacing ring 4.Described Sealing shield ring 3 be at the periphery suit of sliding sleeve 8 float tube 9, on the upper surface of sliding sleeve 8 and float tube 9, be embedded with sealing plate 10.When being full of liquid in the sleeve pipe, liquid is with Sealing shield ring jack-up, and Sealing shield ring arrives on the water conservancy diversion ring stand, with the longitudinal hole shutoff on the water conservancy diversion ring stand, liquid can not be overflowed by the through hole on the water conservancy diversion ring stand, thereby has prevented the generation of liquid spill phenomenon.

Claims (3)

1. the anti-excessive safety shutoff of sleeve pipe liquid, it is characterized in that constituting by well head oil pipe (1), water conservancy diversion ring stand (2), Sealing shield ring (3) and lower limit ring (4), at the place, lower edge of the upper end short circuit (5) of well head oil pipe (1) fixedly suit water conservancy diversion ring stand (2), well head oil pipe (1) under water conservancy diversion ring stand (2) has been gone up the slip suit Sealing shield ring (3), is fixed with spacing ring (4) on the well head oil pipe (1) under the Sealing shield ring (3).

2. the excessive safety shutoff of anti-sleeve pipe liquid as claimed in claim 1 is characterized in that on the circumference of water conservancy diversion ring stand (2) longitudinal hole (6) being arranged, and has gone up setting-in joint ring (7) in the ring week of water conservancy diversion ring stand (2).

3. the excessive safety shutoff of anti-sleeve pipe liquid as claimed in claim 1 or 2, it is characterized in that Sealing shield ring (3) be at the periphery suit of sliding sleeve (8) float tube (9), on the upper surface of sliding sleeve (8) and float tube (9), be embedded with sealing plate (10).

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