CN204477569U - For the instrument of pipe pressurized connection - Google Patents

Abstract

The utility model discloses a kind of instrument for pipe pressurized connection, comprise tapping equipment and supervisor's welding nipple part two-part, wherein: tapping equipment comprises drilling rod, is arranged at the drill bit at drilling rod top and cover cutter, passive main body, is arranged at spanner and pull bar, top board, brasses, pressure mother, seal ring, leading screw and the plate handle of drilling rod afterbody; Supervisor's welding nipple part comprises adapter, and adapter is provided with valve, is provided with flange and sealing gasket between valve and adapter.The utility model is used for the instrument of pipe pressurized connection, can not stop conveying supervisor medium, not reduce pressure, does not carry out diffusing, purges, displacement etc., ensures to carry out arm connection when producing normal operation.This instrument is convenient, fast, safe, reliable, and namely do not affect normal production, again environmental protection and energy saving, operating expenses is low, labor intensity is low, but by force technical, therefore wants careful arrangement in operating process.

Description

For the instrument of pipe pressurized connection

Technical field

The utility model relates to a kind of interface equipment when being connected with main line for pipeline, and in particular, the utility model is a kind of for online press and open holes equipment.

Background technique

At present, country extremely focuses on the Appropriate application focused in energy-saving and emission-reduction work, particularly Iron And Steel Plant the process pipe such as water, gas.The utilization of special blast furnace gas, therefore often carries out reconstruction and extension project to pipeline, often carries out the contact work of the pipeline such as coal gas, rock gas in maintenance engineering.Normally close, pipeline carries out nitrogen purging by the main blank-plate valve of blast furnace staying, gas pipe line for old way, respectively diffuse a little be up to the standards after can carry out perforate contact, carry out displacement more afterwards and supply gas, not only affect normal production but also there is the danger such as nitrogen suffocates, remaining gas poisoning.Moreover coal gas system is larger, purge the manpower and materials of the displacement a large amount of combustion gas of waste and displacement, and the combustion gas of discharge affects surrounding enviroment.

Model utility content

In order to solve problems of the prior art, the utility model provides a kind of instrument for pipe pressurized connection, overcomes tie-in point impact in prior art and normally produces, exists the problem of potential safety hazard.

The technical solution of the utility model is: a kind of instrument for pipe pressurized connection, comprises tapping equipment and supervisor's welding nipple part two-part, wherein:

Tapping equipment comprises drilling rod, is arranged at the drill bit at drilling rod top and cover cutter, and passive main body, is arranged at spanner and pull bar, top board, brasses, pressure mother, seal ring, leading screw and the plate handle of drilling rod afterbody;

Supervisor's welding nipple part comprises adapter, and adapter is provided with valve, is provided with flange and sealing gasket between valve and adapter.

Supporting part is provided with bottom described tapping equipment base and valve.

The beneficial effects of the utility model are: the utility model is used for the instrument of pipe pressurized connection, can not stop conveying supervisor medium, not reduce pressure, do not carry out diffusing, purge, displacement etc., ensure to carry out arm connection when producing normal operation.This technique is convenient, fast, safe, reliable, and namely do not affect normal production, again environmental protection and energy saving, operating expenses is low, labor intensity is low, but by force technical, therefore wants careful arrangement in operating process.

Accompanying drawing explanation

Fig. 1 is the tapping equipment of the utility model for the instrument of pipe pressurized connection;

Fig. 2 is the instrument supervisor welding joint pipe structure schematic diagram of the utility model for pipe pressurized connection;

Fig. 3 is the sectional view in A-A face in Fig. 2;

Wherein 1-drill bit; 2-overlaps cutter; 3-drilling rod; 4-main body; 5-pull bar; 6-brasses; 7-presses mother; 8-sealing gasket; 9-spanner; 10-locknut; 11-is top; 12-top board; 13-leading screw; 14-handle; 15-is responsible for; 16-jig; 17-takes over; 18-valve; 19-flange.

Embodiment

Below in conjunction with accompanying drawing to the further detailed description of the utility model.

As shown in the figure, whole online shedding motion is divided into two-part: tapping equipment and supervisor's welding nipple part.

1, the constituent elements of tapping equipment comprises: perforator composition comprises: drill bit act as boring, locates, takes closure plate out of; Cover cutter plays perforate shear action; Drilling rod is feeding, cuts force-transmitting member; Main body is the supporting part that is rigidly connected; Pull bar and top board play power transmission balanced action; Brasses plays revolving support effect; Pressure mother and seal ring prevent gas leakage; Spanner is drive unit; Leading screw and plate are playing feeding effect.As Fig. 1.

2, supervisor's welding nipple part comprises: welding adapter is consistent with branch diameter, is welded in advance on supervisor; Open valve closes medium after acting as boring, is convenient to later stage connection construction and selects valve, mating valve to make adapter according to rig, ensure that attachment hole complements one another, good seal, connecting pipe length can ensure the depth of cut.As Fig. 2.

Sequence of construction :-pipe connecting flange installation-valve installation-tapping equipment installation-boring cutting-valve closing-tapping equipment dismounting-blank flange installation-working platform dismounting set up by preparation of construction-working platform.

1, preparation of construction

Gas pipe line fire operation with pressure is dangerous apparent, once examine the inconsiderate serious accident that poisoning, fire, blast very easily occur of filter, therefore preparation of construction is fully careful, focuses on that safety measure puts in place, technique preparation is abundant especially.

1) object of the clearly whole operation of crew, specified position perforate on the female pipe of coal gas, adapter.

2) content of the clearly whole operation of crew, on main pipeline, welding adapter, perforate, ensure the safety of whole operating process people and thing.

3), easily there is poisoning, fire, blast in the impact of the clearly whole operation of crew and harmfulness.Naked light, fire good can not be had in surrounding 10 meters.Around 40 meter Nei La establish warning rope.

4) formulating detailed technological scheme reports relevant department to examine, and formulates emergency preplan.

5) adapter, valve, drilling special equipment and instrument is prepared.Grasp facility performance and operating method.

6) set up operating platform and run and jump.

7) fire-fighting equipment is complete, water power is complete.

8) adapter will on test specimen sternly good mouth, welder will take appointment with certificate, clear to tube wall, and size of current is suitable.

9) set up unified chain of command, information is unobstructed.

10) excusing from death ripple inspection after quality control boring, reaming, welding, drilling device operation, welding.

11) enter plant area and should observe rules and regulations in factory, enter job site and answer safe wearing cap, the safety devices such as gloves.

12) high-lift operation person must safe wearing rope wearing tool bag, and means of delivery is forbidden throwing, and application rope is sent, and before ascend operation, reply security tool (safety rope, scaffold board, ladder etc.) checks, confirms that secure side can use.

13) flammable explosive gas pipeline construction, should observe flames of anger operation, answers submersible when pipeline boring or cutting, and be equipped with fire distinguisher, toxic and harmful operation should wear effective gas defence utensil.

14) construction equipment, instrument, material is placed in order, and obvious warning mark should be set up in operating area, to ensure both sides and other staff's safety, prevents unexpected injury.

15) potential safety hazard of prediction is taken precautions against in advance, guarantee construction equipment and other operational outfit on-the-spot intact.

2, the setting up of working platform

Setting up platform will ensure safe and reliable, working surface 3X3 rice, has to safeguard railing, arrange safety rope, have and to run when jumping prevents accident up and down and relief passage.Platform upper surface is apart from pipeline center about 1000 meters.Load-bearing 2000KG, ensures installation and the operating space of valve, tapping equipment.

3, pipe connecting flange is installed

Adapter is first according to figure mono-rig determination length, and in prefabricated pipe, ground three ports weld with supervisor again, and welder takes appointment with certificate, and can not penetrate mother metal, is interrupted balanced welding, welds inside and outside mouth.Adapter meets levelness and end face squareness requirement, increases rinforcement bar after welding.

4, valve installation

Valve installation is in adapter, and the valve seal of installation should be good, and valve meets the pressure requirements of pipeline, and adapter carries out pressure test together with valve, and test pressure is pipeline working pressure.Add sealing gasket between valve and adapter, bolt is connected with pad the installation requirement meeting gas pipe line.(in Fig. 2 valve)

5, perforator equipment is installed to (main flange of Fig. 1 is connected with figure bis-valve flanges) on valve

1) before rig installation, inspection equipment is safe and reliable;

2) whether inspection equipment meets the shape journey needed for boring requirement;

3) tapping equipment is installed and first drilling rod is loaded main body, then, the cover cutter, drill bit etc. of super hole cutter is connected firmly, and installs sealing gasket.Check drilling rod, should rotate flexibly in brill main body, without card group phenomenon.

4) the installation strong point of tapping equipment is born primarily of supervisor and adapter, for ensureing the installation precision of rig, increasing and supporting firm perforator bottom perforator base and valve; The gyration center line of perforating cutter should be concentric with piping flange pipeline, and after installing, crawl is to determine whether concentricity meets the requirements, and spot facing cutter and inner surface of pipeline can not have jam phenomenon.

6, boring, valve closing, rig are removed

1) workman of on-the-spot lead plug should examine through national regulation, should take appointment with certificate.

2) construction with pressure, so should be appreciated that the burning-point of pipeline internal medium in work progress, to control the heat in metal cutting produced in work progress;

3) valve is opened completely, by drill body water injection hole, adapter, valve and drill body are filled water, play cooling and lubricating effect like this, the more important thing is and make coke-stove gas and air insulated, avoid burning hidden danger on fire occurs.

4) perforate operating personnel carries with toxic air alarm device, detects at any time to operating environment, finds that running leakage phenomenon makes proper process in time, in case of urgency withdraws scene by safe escape route rapidly, guarantees personal safety.

5) drive drilling rod to turn clockwise, rotate feed screw mandrel, head on the slow feed of drilling rod, after boring completely, cut tube wall disk enters cover cutter, and drillman completes simultaneously.

6) working angles because of working surface be cambered surface, working angles is interrupted cutting mode, and therefore the dynamics of tool contact working surface must evenly, in order to avoid forge a knife, the performance that the benefit course of working of interrupted processing just has cutter to lower the temperature;

7) pulled out by drilling rod, cover cutter is pulled out and bores main body, throttle down, unloads super hole cutter, namely completes bore operation.

8) first remove cutter in equipment Removal process, then equipment is removed;

7, increase blind plate to prevent from revealing, removing working platform.

Above with reference to drawings and Examples, schematically describe the utility model, this description is not restricted.Those of ordinary skill in the art will be understood that in actual applications, and in the utility model, some change all may occur the set-up mode of each parts, and other staff also may make the similar Design of various ways under its enlightenment.It is pointed out that only otherwise depart from design aim of the present utility model, all apparent changes and similar Design thereof, be all included within protection domain of the present utility model.

Claims (2)

1. for an instrument for pipe pressurized connection, it is characterized in that, comprise tapping equipment and supervisor's welding nipple part two-part, wherein:

Tapping equipment comprises drilling rod, is arranged at the drill bit at drilling rod top and cover cutter, and passive main body, is arranged at spanner and pull bar, top board, brasses, pressure mother, seal ring, leading screw and the plate handle of drilling rod afterbody;

Supervisor's welding nipple part comprises adapter, and adapter is provided with valve, is provided with flange and sealing gasket between valve and adapter.

2. according to claim 1 for the instrument of pipe pressurized connection, it is characterized in that, bottom described tapping equipment base and valve, be provided with supporting part.