CN2811727Y - Apparatus for drilling and plugging steel-skeleton plastic composite pipe without stopping gas transportation - Google Patents

Abstract

The utility model discloses a processing device for drilling and plugging a steel frame plastic composite pipeline with gas, which comprises a drilling apparatus, a plugging apparatus, a perforating apparatus and a by-pass connection device, wherein the drilling apparatus comprises a bracket (1), a saddle (17) and a drilling rod (12). The utility model is characterized in that a drilling apparatus (48) and a plugging apparatus (35) respectively penetrate through a connecting box (8), a rotary valve (9) and a technology box (11), wherein the connecting box (8), the rotary valve (9) and the technology box (11) are positioned between the bracket (1) and an upper supporting base (14). The drilling apparatus (48) comprises the drilling rod (12) and a composite drill bit (13). The plugging apparatus (35) comprises a piston pipe (25), a middle pipe (26), an outer pipe (27), a heating jacket (31) and a lower plug (24). A perforating apparatus (50) comprises a cutting knife (46) and a connecting rod (45). The fault job processing of drilling, plugging, perforation, connection of a branch path of a gas pipeline, first-aid repair with the gas, pipeline replacement, etc. on the pipeline in the state of gas supply can be realized by means of the assembly of the device. Therefore, the range of market use of the steel frame plastic composite pipeline is broadened.

Description

The processing device of a kind of steel skeleton plastic clad pipe road band air to open hole shutoff

Technical field

The utility model relates to a kind of processing device of perforate shutoff on pipeline, especially a kind of processing device that is used for perforate shutoff on the steel skeleton plastic clad pipe road under the band gas working state.

Background technique

At present, because that the steel skeleton plastic clad pipe road not only has is in light weight, intensity is high, good corrosion resistance, and uses the pipeline in this steel skeleton plastic clad pipe road safe and reliable, durable in use, user cost is low, and it is little that labor intensity is installed.Therefore, in the pipe-line system of gas pipeline, the steel skeleton plastic clad pipe road has obtained using widely, but when using this steel skeleton plastic clad pipe road, also there are two problems: be exactly in the place of laying its steel skeleton plastic clad pipe road, when tubing, can not carry out concrete using planning and designing with gas, particularly behind tubing, in carrying out city-building, need to use the local a lot of of gas, thereby on its pipeline, just need perforate to connect a lot of air pipe branch roads, but when perforate connects branch road, should on having the pipeline of netted steel wire, inside get out perforate, can not close source of the gas again, can not influence other user uses, therefore under the gas supply conduit working state, particularly flammable, under the gas air feed working staties such as corrosivity, on its steel skeleton plastic clad pipe road during perforate shutoff connecting tube branch road, should accomplish perforate connecting tube branch road, not allowing again has combustibility when the perforate shutoff, corrosivity gas is to external leakage, to avoid security incident, after the perforate simultaneously, steel wire can not expose, collaborate in order to avoid cause, and also do not have this steel skeleton plastic clad pipe road at present under the air feed state, particularly supplying combustibility, the processing device of perforate shutoff under the corrosivity gaseity, therefore, restricted the market using scope in steel skeleton plastic clad pipe road greatly; In addition, the steel skeleton plastic clad pipe road of now having laid, if pipeline generation leakage accident for various reasons, it just can only close source of the gas at present, stop air feed work, could rush to repair, safeguard or change pipeline, under band gas working state, just can't rush to repair this pipeline, construction operations such as handling failure, working service are very inconvenient.

Technology contents

In above-mentioned prior art, under the gas supply conduit working state, need on pipeline, lay when connecting branch road, inconvenient problem is safeguarded in restriction steel skeleton plastic clad pipe road market using scope that exists and pipe leakage repairing, the utility model provide a kind of can be under the air feed working state, particularly perforate shutoff on the steel skeleton plastic clad pipe road under combustibility, the corrosive gas air feed working state, lay the connection branch road and safeguard, do not have the processing device of the perforate shutoff of gas leakage again with rushing to repair safely.

The purpose of this utility model is to realize like this, it comprises support, pipeline, upper branching holder, the lower support seat, saddle, described support comprises guide rod, reducer of turbodrill, drive lead screw, clamping plate and last, following lift device, its structural feature is: be connected with case in fixed order below the support and between the upper branching holder, changeover valve, process box, be connected with drilling device and plugging device, described drilling device and plugging device are when boring and shutoff, the company's of passing case respectively, changeover valve, process box, described process box has two openings, and the described case that connects has the inner chamber of a height greater than composite drill bit length; Described changeover valve has the rotatable valve of a slightly larger in diameter in the process box opening; Described drilling device comprises boring bar, composite drill bit, and its boring bar lower end links to each other with composite drill bit, and upper end and reducer of turbodrill activity are joined; Described plugging device comprises piston tube, middle pipe, outer tube, pull bar, heating resistance collar, electric heating wire, lower end cap, spacer shell, pull bar passes piston tube, its stage casing and piston tube are and are slidingly matched, its pull bar lower end passes heating resistance collar and lower end cap is movably connected, the upper end is bearing on support first clamping plate by regulating nut, outer tube passes spacer shell, and its lower end and heating resistance collar upper end are movably connected; Middle pipe passes outer tube, and its lower end and heating resistance collar are movably connected, and its outer tube and middle pipe upper end are fixed on the support three-ply board hermetically, and the piston tube upper end is fixed on second clamping plate; Spacer shell be fixed on the 4th and five-layer plywood between, described heating resistance collar is two-double cylinder, its endoporus is a storage cavity, in the interlayer hole electric heating wire is housed, its heating resistance collar lower end surface is provided with blanking hole spaced apart; Described trepanning device comprises cutting knife, pull bar, connecting rod, sleeve, technology lid, described sleeve lower end links to each other with the sealing of connecting rod upper end, and the connecting rod lower end is connected with cutting knife, and pull bar passes cutting knife, connecting rod and sleeve, the upper end is fixed on the sleeve, and lower end and lower end cap are movably connected.

In order to make the utility model finish perforate and shutoff better, be connected with the foldable type positioning guiding plate on composite drill bit top, described drilling device lower end; On connecting case, be fixedly connected with connecting plate; Between case and changeover valve and process box, seal ring is housed all,, is connected with forming blocks, on process box, be provided with peep hole at its heating resistance collar lower end even also being provided with equilibrated valve on the case.

In order to make the processing device of perforate shutoff, under its pipeline band gas working state, can rush to repair maintenance, the utility model also has a set of tubes bypass connection set, it comprises choke bag, bypass tube, gas tube, equilibrium valve, interior pipe, described bypass tube passes and connects case, changeover valve, process box and pipeline, be connected with interior pipe in the bypass tube lower end, interior pipe is connected with the choke bag that is positioned at the bypass tube lower end, on bypass tube, interlink and be connected to gas tube, described balance tube one end links to each other with bypass tube, and the other end is connected with process box.

The working procedure of the utility model boring, shutoff, perforate connecting leg and on-line emergency repair is:

One, boring procedure:

1, use, the lower support seat is fixedly clamped pipeline, puts into seal ring on upper branching holder, places process box, puts into seal ring and changeover valve again;

2, on changeover valve, put into seal ring and company's case, connect, connecting fixedly connected support on the case again with bolton;

3, shake handwheel on the support, its drive lead screw is moved up, the boring bar lower end is inserted in the process box, the upper end passes supporting plate and reducer of turbodrill joins, shake handwheel again and make drive lead screw compress punch holder on the support, in boring bar decline process, guide positioning plate is opened automatically;

4, starting electrical machinery, boring bar shakes handwheel with the speed rotation that per minute 60-70 changes, make its boring bar rotate decline simultaneously, perforate on the Steel Skeleton multiple tube is after perforate is intact, shake handwheel, make that die holder moves up on it, with the composite drill bit on the boring bar all in the company's of being presented to case, close changeover valve, rotation connects case, and the adapter sleeve of the company of making case lower end compresses the gate in the changeover valve, the locking equilibrium valve, with process box upper shed shutoff sealing, pull down support and boring bar etc. with upper part.

Two, shutoff process:

1, in the heating resistance collar on plugging device behind the granular plastics of the good PE of filling, its lower end inserted connects in case, be fastenedly connected with the connecting plate that connects on the case, put into seal ring between two plates, make to be in sealing state in the spacer shell with the flanged plate of bolt with the spacer shell lower end;

2, open equilibrium valve to sealing station, gas enters above the gate by hole on the gate and the groove on the adapter sleeve, make pressure balance on the gate, open changeover valve like a cork, regulate the nut on the plugging device, the plugging device lower end partly descends rapidly, changeover valve, process box are partly passed in the plugging device lower end, until in the pipeline, make forming blocks be close to pipeline external surface, make lower end cap be close to inwall on the pipeline, oppositely regulate nut again, lower end cap is oppositely stretched, be adjacent to inwall on the pipeline, pipeline tapping is sealed shutoff;

3, the peep hole from the process box, check whether the plugging device lower end cap seals reliably, after finishing, send electric heating to 200 ℃, be incubated 10 minutes, make the granular plastic molting of PE, the regulating piston pipe makes its decline, the PE plastics of extrusion molten state, the PE plastics are flow into from blanking hole in the perforate chamber, make PE plastics and Steel Skeleton composite plastic pipe be melt into one, realize perforate sealing shutoff;

4, treat the PE plastics solidification after, close heating power supply, releasing lever separates pull bar and lower end cap, starts lift device, plugging device is risen to connect above the case;

5, the company's of taking apart case, process box, plugging device, the part that will be higher than pipeline with polisher is repaired, and consistent with the pipeline external surface shape as far as possible.

Three, perforate process:

1, the pipe plugging mouth place that cover for horse-saddles is being polished, with the appropriate fixedly saddle of locking hoop, after again trepanning device being equipped with, be inserted into lower end in the saddle, adjust the saddle position, make the cutting knife on the trepanning device be in shutoff mouth center, with technology lid, seal ring and dual-oil seal saddle is sealed, and connect lateral;

2, the cutting knife diameter should be less than bore diameter 8-15 millimeter, appropriateness relative superiority or inferiority rotary cutter, when cutting knife incision PE plastic pipe degree of depth 1-2 millimeter, connect power supply, utilize fuse piece to make saddle and Steel Skeleton composite plastic pipe become whole with the PE sew, to be cooled behind normal temperature, renew the backspin cutting knife that continues, cut the PE plastic layer on the poling road, and on otch, leave one the circle thickness be the PE plastic layer of 8-15 millimeter, with the shutoff of Steel Skeleton conduits cut steel wire, prevent to collaborate;

3, cut the poling road after, the counterrotating pull bar moves upward cutting knife, the PE plastics cotangent material of cutting-out is stayed in the cutting knife inner chamber, and and lower end cap take out of with cutting knife together, rise in the straight tube on saddle top, the saddle straight tube is sealed;

4, screw out pull bar, take off the technology lid, split out trepanning device, build the saddle capping, the shutoff of saddle straight tube is sealed.

Four, on-line emergency repair process:

1, elder generation leak both sides on pipeline are finished boring simultaneously, close changeover valve, split out support;

2, pipeline bypass connection set is combined, its bypass tube is inserted in company's case, and after will inserting the ingress sealing, open changeover valve, bypass tube is dropped in the pipeline;

3, open gas tube, pressurized air is filled in the choke bag by interior pipe, become a circular pneumatic tyre gate that has air pressure after the inflation of choke bag, the place separates shutoff with pipe leakage, and carry out simultaneously on both sides, gas in the pipeline can be cut off, thereby rush to repair, fault operations such as maintenance are handled;

4, after the gas of Guo Louing enters in the process box, be expelled in the bypass tube from balance tube;

5, pipe first-aid finishes, and takes out bypass tube, closes changeover valve, installs plugging device, the opening of will holing plugging device shutoff good seal.

The utility model has solved gas pipeline, particularly flammable, the conveyance conduit of corrosive gas in working order down, the perforate shutoff connects the problem of branch road on pipeline, the processing device of this perforate shutoff on the steel skeleton plastic clad pipe road, it can rush to repair maintenance to the pipeline under the band gas working state simultaneously, changing fault operations such as damaging pipeline handles, neither influence other user's use, safe and reliable again, easy to operate, flexibility is strong, therefore, its very applicable plastic pipeline, particularly composite plastic pipe perforate shutoff connecting tube branch road and pipe-line maintenance repairing operation when the work of band gas, the market using scope and the usage requirement that have improved the steel skeleton plastic clad pipe road greatly.

Description of drawings

Structural representation when Fig. 1 is the utility model bore state,

Structural representation when Fig. 2 is the utility model sealed condition,

Structural representation when Fig. 3 is the utility model perforate state,

Fig. 4 is the structural representation of state after the utility model shutoff,

Fig. 5 is the structural representation of the utility model on-line emergency repair state.

In the drawings, 1, support 2, handwheel 3, drive lead screw 4, guide rod 5, reducer of turbodrill 6, punch holder 7, die holder 8, connect case 9, changeover valve 10, handle 11, process box 12, boring bar 13, composite drill bit 14, upper branching holder 15, lower support seat 16, multiple tube 17, saddle 18, spacer shell 19, connecting plate 20, sealing cover 21, pull bar 22, fuse piece 23, technology lid 24, lower end cap 25, piston tube 26, middle pipe 27, outer tube 28, nut 29, y-shaped ring 30, O shape density circle 31, heating resistance collar 32, positioning guiding plate 33, flanged plate 34, peep hole 35, plugging device 36, fine setting cover 37, sleeve 38, equilibrium valve 39, capping 40, gate 41, electric heating wire 42, blanking hole 43, forming blocks 44, lift device 45, connecting rod 46, cutting knife 47, dual-oil seal 48, drilling device 49, storage cavity 50, trepanning device 51, gas tube 52, bypass tube 53, equilibrium valve 54, interior pipe 55, the choke bag

Embodiment

In Fig. 1, state when the utility model is in boring, it comprises support 1, pipeline 16, upper branching holder 14, lower support seat 15, described support 1 comprises guide rod 4, reducer of turbodrill 5, drive lead screw 3, punch holder 6, die holder 7, handwheel 2, fine setting cover 36, support 1 lower end connects a supporting plate, below die holder 7, be provided with fine setting cover 36, be used for 12 feeds of handling boring bar, be connected with case 8 in fixed order below the support 1 and between the upper branching holder 14, changeover valve 9, process box 11, boring bar 12 is when boring, the company's of passing case 8 respectively, changeover valve 9, process box 11, described process box 11 cylindrical shapes, have two openings that vertically communicate on it, on, under shed links to each other with upper branching holder 14 with changeover valve 9 respectively, in the one side promising observation closed hole 34 is set; The described case 8 that connects has the inner chamber of a height greater than the length of composite drill bit 13, connect case 8 and be provided with connecting plate 19, be provided with Y shape backbone sealing ring 29 in the groove on the connecting plate 19, described boring bar 12 lower ends and composite drill bit 13 are movably connected, the upper end joins with reducer of turbodrill 5 activities, composite drill bit 13 tops are provided with positioning guiding plate 32 on boring bar 12, this positioning guiding plate 32 is a foldable type, automatically open when moving down with boring bar 12, automatically shrink during rising, copper sheathing is arranged in the middle of the positioning guiding plate 32, positioning guiding plate 32 overall dimensionss are slightly less than process box 11 upper and lower opening internal diameters during work, changeover valve 9 forms a upper and lower opening container by steel plate, there is gate 40 inside, gate 40 diameters are greater than opening, changeover valve 9 cross-section areas are slightly larger than the area of two gates 40, be provided with O-ring seals 30 in the groove of gate 40 lower ends, gate 40 upper ends link to each other with adapter sleeve on connecting case 8, on gate 40 limits, be fixed with the handle 10 that is positioned at outside the changeover valve 9 by running shaft, be used for closing of regulating gate 40, on changeover valve 9, also be provided with equilibrium valve 38, on the gate 40 and connect case 8 and tighten and have hole and groove under the cover, guarantee pressure balance on changeover valve 9 upper lock gates 40, changeover valve 9 is opened conveniently.

In Fig. 2, state when the utility model is in shutoff, described plugging device 35 comprises piston tube 25, middle pipe 26, outer tube 27, pull bar 21, heating resistance collar 31, electric heating wire 41, lower end cap 24, spacer shell 18, pull bar 21 passes piston tube 25, its stage casing and piston tube 25 are being slidingly matched of pine, its pull bar 21 lower ends are passed heating resistance collar 31 and are movably connected with lower end cap 24, the upper end is bearing on support 1 first clamping plate by regulating nut 28, lower end cap 24 is elastic plastic members that are W shape, which is provided with screw thread, can be movably connected with pull bar 24, outer tube 27 passes spacer shell 18, and its lower end and heating resistance collar 31 upper end external spirals are movably connected; Middle pipe 26 passes outer tube 27, and its lower end and heating resistance collar 31 internal spirals are movably connected, and its outer tube 27 and middle pipe 26 upper ends are fixed on support 1 three-ply board with sealing cover 20, and piston tube 25 upper ends are fixed on second clamping plate; Spacer shell 18 be fixed on the 4th and five-layer plywood between, described heating resistance collar 31 is two-double cylinder, its endoporus space is a storage cavity 49, but the granular plastics of filling PE in storage cavity 49, in the interlayer hole, be provided with electric heating wire 41, its electric power can make granular plastics temperature reach 200 ℃, on its heating resistance collar 31 lower end surfaces, be provided with and be evenly distributed with blanking hole 42 at interval, blanking hole 42 diameters are 2.5 millimeters of Φ, blanking hole 42 hole counts are 16, between first and second and the 3rd and the 4th clamping plate, be provided with two lift devices 44, first lift device 44 is used to control plugging device 35 and moves up and down, second lift device 44 is used for control piston pipe 25 and moves up and down, and when piston tube 25 is left outer tube 27, can carry out the granular plastics of filling PE, pull bar 21 usefulness hands are operated control, and it moves up and down, be connected with forming blocks 43 in heating resistance collar 31 lower ends, be fixed on the heating resistance collar 31 with bolt, forming blocks 43 lower end shapes and pipeline external surface shape 16 match.

In Fig. 3, state when the utility model is in perforate, at first saddle 17 is fixed on the pipeline 16 by fuse piece 22 weldings, assemble trepanning device, described trepanning device 50 comprises cutting knife 46, pull bar 21, connecting rod 45, sleeve 37, technology lid 23, described sleeve 37 lower ends link to each other with the sealing of connecting rod 45 upper ends, connecting rod 45 lower ends are connected with cutting knife 46, pull bar 21 passes cutting knife 46, connecting rod 45, sleeve 37, its upper end is fixed on the sleeve 37, lower end and lower end cap 24 are movably connected, and described cutting knife 46 is the cylinder cylindricality, and its center, upper end has one to be used for the hexagonal hole that is fixedly linked with connecting rod 45, its lower end is a tubular cutting knife 46, after in cutting knife 46 is inserted into saddle 17, with technology lid 23, O-ring seals 30 and dual-oil seal 47 are with saddle 17, connecting rod 45 and pull bar 21 sealings make pull bar 21 decline feeds with handling, the PE plastic tube is cut, and its cutting clout is stayed in the cutting knife, incision periphery leaves the PE plastics, prevents that otch from collaborating.

In Fig. 4, the utility model is in state after the shutoff, the feed perforate finishes, and counterrotating pull bar 21 makes pull bar 21 move upward together with the plastics clout of lower end cap 24 and cutting-out, and make lower end cap 24 both sides reverse, distortion becomes inversed W-shape, and its sealing and fixing in the straight tube of saddle 17, is pulled down pull bar 21, cover capping 39, finish the pipeline tapping shutoff and connect branch road.

Among Fig. 5, the utility model is in the on-line emergency repair state, it has a pipeline bypass connection set, it comprises choke bag 55 described bypass connection set, bypass tube 52, gas tube 51, equilibrium valve 53, interior pipe 54, described bypass tube 52 company's of passing casees 8, changeover valve 9, process box 11 and pipeline 16, pipe 54 in being connected with in bypass tube 52 lower ends, interior pipe 54 is connected with the choke bag 55 that is positioned at bypass tube 52 lower ends, interlink in bypass tube 52 upper ends and to be connected to gas tube 51, described balance tube 53 1 ends link to each other with bypass tube 52, the other end is connected with process box 11, earlier get out hole, two places with drilling device in the both sides of pipeline 16 leak, after closing changeover valve, pull down parts such as support, connect pipeline bypass connection set at the place, two holes of boring respectively, form a bypass and connect branch line, cut off the pipe leakage place, thereby leak is rushed to repair, fault operations such as maintenance or replacing pipeline, after repairing finishes, take out bypass tube, close changeover valve, install plugging device, with two places boring opening shutoff good seal.

Claims (5)

1, the processing device of a kind of steel skeleton plastic clad pipe road band air to open hole shutoff, it comprises support (1), pipeline (16), on, lower support seat (14,15), saddle (17), described support (1) comprises guide rod (4), reducer of turbodrill (5), drive lead screw (3), clamping plate (6,7) and lift device (44), it is characterized in that: fixed order is connected with case (8) between support (1) below and upper branching holder (14), changeover valve (9), process box (11), be connected with drilling device (48) and plugging device (35), described drilling device (48) and plugging device (35) are when boring and shutoff, the company's of passing case (8) respectively, changeover valve (9), process box (11), described process box (11) has two openings, and the described case (8) that connects has the inner chamber of a height greater than composite drill bit (13) length; Described changeover valve (9) has the rotatable valve of a slightly larger in diameter in process box (11) opening, described drilling device (48) comprises boring bar (12), composite drill bit (13), its boring bar (12) lower end and composite drill bit (13) are movably connected, described plugging device (35) comprises piston tube (25), middle pipe (26), outer tube (27), pull bar (21), heating resistance collar (31), electric heating wire (41), lower end cap (24), spacer shell (18), pull bar (21) passes piston tube (25), its stage casing and piston tube (25) are and are slidingly matched, its pull bar (21) lower end is passed heating resistance collar (31) and is movably connected with lower end cap (24), the upper end is bearing on support (1) first clamping plate by regulating nut (28), outer tube (27) passes spacer shell (18), and its lower end and heater (31) upper end is movably connected; Middle pipe (26) passes outer tube (27), and its lower end and heating resistance collar (31) are movably connected, and its outer tube (27) and middle pipe (26) upper end are fixed on support (1) three-ply board hermetically, and piston tube (25) upper end is fixed on second clamping plate; Spacer shell (18) be fixed on the 4th and five-layer plywood between, described heating resistance collar (31) is two-double cylinder, its endoporus is storage cavity (49), is provided with electric heating wire (41) in the interlayer hole, is provided with blanking hole spaced apart (42) on its heating resistance collar (31) lower end surface; Described trepanning device (50) comprises cutting knife (46), pull bar (21), connecting rod (45), sleeve (37), technology lid (23), described sleeve (37) lower end links to each other with the sealing of connecting rod (45) upper end, connecting rod (45) lower end is connected with cutting knife (46), pull bar (21) passes cutting knife (46), connecting rod (45), sleeve (37), its upper end is fixed on the sleeve (37), and its lower end and lower end cap (24) are movably connected.

2, the processing device of a kind of steel skeleton plastic clad pipe according to claim 1 road band air to open hole shutoff, it is characterized in that: it has a pipeline bypass connection set, it comprises choke bag (55) described bypass connection set, bypass tube (52), gas tube (51), equilibrium valve (53), interior pipe (54), described bypass tube (52) company's of passing case (8), changeover valve (9), process box (11) and pipeline (16), bypass tube (52) is connected with interior pipe (54) in the lower end, interior pipe (54) is connected with the choke bag (55) that is positioned at bypass tube (52) lower end, on bypass tube (52), interlink and be connected to gas tube (51), described balance tube (53) one ends link to each other with bypass tube (52), and the other end is connected with process box (11).

3, the processing device of a kind of steel skeleton plastic clad pipe road band air to open hole shutoff according to claim 1, it is characterized in that: go up composite drill bit (13) top at boring bar (12) and be provided with foldable type positioning guiding plate (32), positioning guiding plate during work (32) overall dimensions is slightly less than process box (11) upper and lower opening internal diameter.

4, the processing device of a kind of steel skeleton plastic clad pipe road band air to open hole shutoff according to claim 1, it is characterized in that: changeover valve (9) is provided with equilibrium valve (38).

5, the processing device of a kind of steel skeleton plastic clad pipe road band air to open hole shutoff according to claim 1 is characterized in that: be connected with forming blocks (43) in heating resistance collar (31) lower end.

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