CN2350520Y

CN2350520Y - Self-press packer

Info

Publication number: CN2350520Y
Application number: CN 98245302
Authority: CN
Inventors: 靳茂林
Original assignee: General Surveying Team Xingjiang Water Conservancy & Hydropower Surveying Desig
Current assignee: General Surveying Team Xingjiang Water Conservancy & Hydropower Surveying Desig
Priority date: 1998-10-22
Filing date: 1998-10-22
Publication date: 1999-11-24
Anticipated expiration: 2008-10-22

Abstract

The utility model belongs to a water pressing experiment and grouting containment device in geological exploration drilling, which relates to a self-press packer. The self-press packer is composed of an end seat, a press cap, a press cover, a core tube and a capsule. The end seat is connected with the both end of the core tube which is composed of a perforated pipe with perforated pipe holes and a solid tube. The capsule is sheathed on the outer wall of the end seat. The both ends of the capsule is pressed by the press cover, and the press cap is used for pressing the press cover. The utility model has the advantages of small appliance, simple operation, low cost, time saving, labor saving and high work efficiency, and avoids clamping accident.

Description

Self-press packer

The utility model belongs to packer permeability test and the grouting packer device in a kind of geological prospecting borehole, relates to Self-press packer.

At present, the packer that is used for setting-out experiment and grouting both at home and abroad has three kinds substantially: i.e. mechanical type, gasbag-type, water-bag type.The common problem that exists of these several packers is all to need to give separately pressure equipment, exerts pressure separately, uses very loaded down with trivial detailsly, time-consuming, and the jam accident takes place easily, and cost is also higher.

The purpose of this utility model is to address the above problem a kind of pressure certainly of utilizing setting-out or grouting is provided, the purpose that makes packing reach sealing, end slurry, use simple and reliable, time saving and energy saving, be difficult for the Self-press packer that has an accident, reduce cost.

The purpose of this utility model is achieved in that the utility model is divided into pure pressure type and circulating two kinds, and no matter which kind of is by the pair of end seat, a pair of pressure cap, and a pair of gland, 2 of stamen pipes (pure pressure type is only established), capsule is formed; The end seat is the stairstepping tubular, respectively establish two internal threads (pure pressure type is respectively established has only an internal thread) in the outer end in it, inner two internal threads of end seat are connected the location with the floral tube of wounded in the battle pore with the stamen pipe two ends that real pipe is formed, capsule set compresses outside, capsule two ends with empty cone gland on the inner outer wall of end seat, pressure cap is used to compress gland.

The utility model compared with prior art has the following advantages: equipment is few, and is easy to use reliable, and avoided the generation of accidents such as jam, the province that reduces cost, saves time, raising work efficiency, and every technical indicator reaches code requirement.Finish at grout compartment, the packer capsule shrinks automatically after the termination of pumping, can freely propose

Fig. 1 is that the utility model is from (circulation) formula of pressure packer sectional structure schematic diagram.

Fig. 2 is that the utility model is from pressing (pure pressure) formula packer sectional structure schematic diagram.

Fig. 3 is that the utility model is from (circulation) formula of pressure packer operating principle schematic diagram.

Fig. 4 is that the utility model is from pressing (pure pressure) formula packer operating principle schematic diagram.

Fig. 5 is the unidirectional pressure regulator valve sectional structure of a utility model schematic diagram.

The utility model is described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, 2, it is divided into pure pressure type and circulating two kinds the utility model, and no matter which kind of is by pair of end seat (1ab), a pair of pressure cap (2ab), a pair of gland (3ab), stamen pipe (5) 2 (5-1) is [pure pressure type only is provided with a stamen pipe (5)] (5-2), and capsule (4) is formed; End seat (1ab) is the stairstepping tubular, two internal threads (pure pressure type is respectively established has only an internal thread) are respectively established in outer end in it, inner two internal threads of end seat (1ab) are connected the location with the floral tube (5-1) of wounded in the battle pore (7) with the stamen pipe two ends that real pipe (5-2) is formed, capsule (4) is enclosed within on end seat (1ab) inner outer wall, compress outside, capsule (4) two ends with empty cone gland (3ab), it is unlikely loosening that pressure cap (2ab) is used to compress gland (3ab).Capsule (4) is the cylindrical rubber pipe, its two ends outer wall belt taper.Be convenient to connect and sealing, the stamen pipe (5) of pure pressure type is the floral tube (5-1) of circulating wounded in the battle pore (7), equally distributed floral tube hole (7) or bar-shaped trough are set on the floral tube (5-1), floral tube (5-1) is used for slurries has made mud jacking liquid extend to capsule (4) internal diameter by the floral tube hole, makes it capsule (4) and opens.

Shown in Fig. 3,4,5, one on screw thread in end seat (1ab) outer end connects water supply or flow inlet is extremely given pressure equipment, the other end of screw thread connects unidirectional pressure regulator valve (6), another screw thread is used to connect backwater or return pipe, one on screw thread in end seat (1) outer end of pure pressure type connects water supply or flow inlet, to giving pressure equipment, the other end connects unidirectional pressure regulator valve (6) to jetting or Grout-jetting pipe.Begin to Pressure capsule when grouting or setting-out equipment in when work, then drum is opened gradually, reaches the degree of sealing packing at last.When continuing supercharging, when making pressure greater than unidirectional pressure regulator valve tensile force, then unidirectional pressure regulator valve is opened, and at this moment begins to advance slurry or water inlet in the hole, and begins grouting or setting-out.At this moment, remain a pressure differential below the unidirectional pressure regulator valve and in the capsule, this pressure differential is exactly the pressure of opening of unidirectional pressure regulator valve.Wherein the effect of unidirectional pressure regulator valve is to keep the capsule internal pressure all the time greater than the hole internal pressure, keeps capsule to be in drum all the time and opens state, with the purpose that reaches sealing or end slurry.

Claims

1, a kind of Self-press packer, it is divided into pure pressure type and circulating two kinds, and no matter which kind of is by pair of end seat (1ab), a pair of pressure cap (2ab), a pair of gland (3ab), stamen pipe (5) 2 (5-1) is [pure pressure type only is provided with a stamen pipe (5)] (5-2), and capsule (4) is formed; It is characterized in that end seat (1ab) is the stairstepping tubular, two internal threads (pure pressure type is respectively established has only an internal thread) are respectively established in outer end in it, inner two internal threads of end seat (1ab) are connected the location with the floral tube (5-1) of wounded in the battle pore (7) with the stamen pipe two ends that real pipe (5-2) is formed, capsule (4) is enclosed within on end seat (1ab) inner outer wall, compress outside, capsule (4) two ends with empty cone gland (3ab), pressure cap (2ab) is used to compress gland (3ab).

2, Self-press packer as claimed in claim 1 is characterized in that capsule (4) is the cylindrical rubber pipe, its two ends outer wall belt taper.

3, Self-press packer as claimed in claim 1, the stamen pipe (5) that it is characterized in that pure pressure type are the floral tube (5-1) of circulating wounded in the battle pore (7), and equally distributed floral tube hole (7) or bar-shaped trough are set on the floral tube (5-1).