CN204649530U - Sealing head fixing clamping groove of hydraulic pressure testing machine - Google Patents

Abstract

The utility model discloses a fixing slot for a sealing head of a hydraulic testing press, and relates to the technical field of fixing structures of the sealing head of a hydraulic testing press for downhole tools. It includes the card slot body, which is provided with a cavity (1) for accommodating the sealing head (6), and one end of the card slot body is provided with an exhaust hole (3), a water inlet hole (4) and The pressure hole (5), and the exit positions of the exhaust hole (3), the water inlet hole (4) and the pressure hole (5) on the wall of the card groove are aligned with the positions of the corresponding holes on the sealing head (6). The utility model can be applied to fixing sealing heads of various specifications on a press test machine, has strong versatility and good sealing effect.

Description

Hydraulic pressure test machine sealing head fixing slot

technical field

The utility model relates to the technical field of the fixing structure of the sealing head of the downhole tool hydraulic test press.

Background technique

Petroleum downhole tools can only be put into use after passing the pressure test. The pressure test of downhole tools must be completed on a hydraulic pressure test machine that adopts a radial seal. However, there are many varieties and specifications of petroleum downhole tools, corresponding to different tool diameters. Different sealing heads, so it is very inconvenient when testing downhole tools. However, the replacement and fixation of the sealing head is an important indicator of the operability of the testing machine, so it is necessary to propose a universal sealing head fixing slot structure to make it suitable for fixing the sealing heads of various specifications on the testing machine. It is particularly urgent, and the applicant has searched and found that no similar technology has appeared.

Contents of the invention

The utility model aims to provide a fixing slot for the sealing head of the hydraulic testing press aimed at the defects and deficiencies of the above-mentioned prior art. Strong, and good sealing effect.

The utility model is realized by adopting the following technical solutions:

A sealing head fixing slot of a hydraulic pressure testing machine, characterized in that it includes a slot body, a cavity for accommodating the sealing head is provided in the slot body, an air vent hole penetrating through the wall of the slot is opened at one end of the slot body, The water inlet hole and the pressure hole, and the outlet positions of the exhaust hole, the water inlet hole and the pressure hole on the wall of the card groove are aligned with the positions of the corresponding holes on the sealing head.

The main body of the card slot is in a convex shape as a whole.

The water inlet hole, the exhaust hole, and the sealing pressurization hole on the card slot body are respectively connected with the water inlet pipeline, the exhaust pipeline, and the sealing pipeline through the conversion joint.

Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

The utility model proposes that the exhaust hole, the water inlet hole and the pressurizing hole are concentrated on a card groove body to form a fixed card groove structure for accommodating the sealing head. During the pressure test, the sealing head corresponding to the pressure test tool is inserted as a whole In the cavity of the fixed card slot, the water inlet hole, exhaust hole, sealing and pressure hole on the fixed card slot are automatically aligned with the corresponding holes on the sealing head, and an end face seal is formed at the joint part. The internal thread end of the pressure test tool After inserting the sealing head from one side, the sealing and pressure testing process can be started. When changing the pressure testing tool of different specifications, the original sealing head is lifted out of the groove of the machine base, and the sealing head of the corresponding specification is selected, and the above steps are repeated. Therefore, the utility model can be applied to fixing sealing heads of various specifications on a pressure testing machine, has strong versatility, and has good sealing effect.

Description of drawings

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments of the specification, wherein:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural principle diagram when applying the utility model to work.

Marked in the figure:

1. Cavity, 2. Sealing surface, 3. Vent hole, 4. Water inlet hole, 5. Pressure hole, 6. Sealing head, 7. Pressure test tool, 8. Connect to exhaust pipeline, 9. Connect to inlet Water pipeline, 10. Connect to the sealed pressurized pipeline.

Detailed ways

With reference to the accompanying drawings in the specification, the utility model discloses a sealing head fixing groove of a hydraulic testing machine, which includes a groove body, a cavity 1 for accommodating the sealing head 6 is arranged in the groove body, and a penetrating hole is opened at one end of the groove body. The exhaust hole 3, the water inlet hole 4 and the pressurization hole 5 of the card groove wall, and the outlet positions of the exhaust hole 3, the water inlet hole 4 and the pressure hole 5 on the card groove wall and the corresponding holes on the sealing head 6 position alignment.

The shape of the sealing head 6 of all specifications adopts the same size, the fixing of the sealing head 6 adopts the closed slot type, the internal size of the fixing slot of the sealing head meets the installation requirements of the sealing head 6, and the inner surface of the fixing slot adopts a rounded transition , to minimize stress concentration. The water inlet hole 4, the exhaust hole 3 and the pressure hole 5 leading to the sealing chamber are correspondingly processed on the contact surface of the fixed card groove and the sealing head 6, and the joint surface of the water inlet hole 4, the exhaust hole 3 and the pressure hole 5 Set the end face seal to ensure no end face leakage. After the sealing head 6 is fully installed into the card slot, the structure ensures that the water inlet hole 4, the exhaust hole 3 and the pressure hole 5 are automatically centered. On the other side of the fixing slot, the column pin principle is used for positioning and fixing, and at the same time, the other ends of the water inlet hole 4, the exhaust hole 3 and the pressure hole 5 are respectively connected with the control valve. When replacing the sealing head 6, all pipelines do not need to be disassembled, only the sealing head 6 is inserted into the fixing slot as a whole, and the positioning and fixing of the sealing head 6 are automatically completed.

During the pressure test, the sealing head 6 corresponding to the pressure testing tool 7 is inserted into the fixed card slot as a whole, and the water inlet hole 4, the exhaust hole 3, the sealing pressure hole 5 on the fixed card slot and the corresponding holes on the sealing head 6 automatically Align, and form an end face seal at the joint; after the internal thread end of the pressure test tool 7 is inserted into the sealing head 6 from one side, the sealing and pressure test process can begin. When replacing the pressure test tool 7 of different specifications, the original sealing head 6 is lifted out of the groove of the machine base, the sealing head 6 of the corresponding specification is selected, and the above steps are repeated.

Claims (3)

1. a waterpower pressure testing machine seal head fixed card slot, it is characterized in that: comprise draw-in groove body, the cavity (1) holding seal head (6) is provided with in draw-in groove body, one end of draw-in groove body have run through draw-in groove wall vent port (3), inlet opening (4) and pressurization hole (5), and vent port (3), inlet opening (4) and pressurize hole (5) exit position on draw-in groove wall and the respective aperture aligned in position on seal head (6).

2. a kind of waterpower pressure testing machine seal head fixed card slot according to claim 1, is characterized in that: described draw-in groove intrinsic single is convex shape.

3. a kind of waterpower pressure testing machine seal head fixed card slot according to claim 1, is characterized in that: the inlet opening (4) on draw-in groove body, vent port (3), sealing pressing hole (5) are connected with back with water inlet line, exhaust line, sealing pipeline respectively by X-over.