Zastosuvannya centralizers for zvaryuvannya pipes. How to use centralizers for zvaryuvannya pipes and how to beat them more beautifully

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The trumpets of great roses (diameters, dozhini) are smoothly closed by hand so that the edges are exactly and without distortions. For tsієї meti zastosovuyt mehanіchnі pristroї - centralizers for zavaryuvannya pipes. The stench will ensure a perfect stitching, as if allowing the work of a fine welding seam. Basically, they are vicorous during the construction of main and utility pipelines. The range of expansion of pipes, which are connected by centralizers, ranges from 25 mm to 6000 mm.

Benefits of winning centralizers:

superficial fixation of pipes;
edges can be stitched with high precision;
shvidkіst that simplicity vikoristannya;
longevity of attachment.

Centralizers are indispensable for the hour of arranging bulky main pipelines for pumping gas, oil, chemical speeches and other unsafe rivers and gases. The only thing you need is more vitrati, but it’s more safe for you to keep the quality of the healthy plant. Pipes in sections are picked up at stands, lines, re-supply pipe-making bases.

For technological reasons, the centralizers are divided into two groups:

for internal installation;
for a call installation.

The stench of your own functions can wink, or they can wink not slyly, but only in singing minds, replacing one by one. For example, when connecting straight pipes of the same diameter, it is possible to vicorate as an external and internal centralizer. When connecting pipes with a ring, it is not possible to install an attachment in the middle, but for fixing the elements of vicorist, an external attachment is required. Centralizers increase the productivity and efficiency of choosing both large and small pipelines. You can vicorate for welding any type of connection (straight lines, turns, tees, shut-off valves, flanges).

Internal

Internal centralizers allow mechanization of the process of folding the pipeline, with which the stick is fully accessible for welding, the seam is applied without interruption, without the installation of tacks. Zastosuvannya centralizers significantly ease the work of the brewer, shards allow you to lay the entire seam immediately and without dents.

The fallow type of pipe expansion of the centralizers can be used in different designs:

centralizers of internal hydraulics - are victorious for centering like okremih pipes, so і sections, and moving from a stick to a stick is carried out for an additional special rod;
manual wedges - automatically center pipes, including those with different diameters;
scissors - fallow models and constructions can center pipes not only of the same, but also of a different diameter.

Internally, more evenly rozpodіlyayut different perimeters every one of one on the whole stick. The stench of the building corrects the insignificant indentations, the correction in the form of cylindricality and bring the ends to the correct stake.

Like a great main pipeline, vicorist self-propelled hydraulic centralizers. The stinks of the buildings move around the great stand at the sight of remote control.

Internal (spread) centralizers ensure the most precise fit of pipe edges; To finish the straining mechanisms can zdіysnyuvaty virіvnyuvannya edges and vykoristuyutsya like expanding. They move the steps of mechanization and the productivity of folding practically all the workers to the pipeline.

Zovnishni

Zvaryuvannya zahlostuvannya, sticks with a difference in diameters, twisting, crooked inserts, cosins, fittings are vibrated for the help of zvnishnіh centralizers. The stench of a different design, as a matter of principle, one kind of one does not. The main working element is the two two ends of the brackets connected by a hinge, their width is such that two ends of the pipes are stuck together. In essence, the centralizer is a portable extension of the independent division, which fixes.

For the design, the centralizers distinguish:

arched hydraulics - folded from arcuate sections, connected behind additional hinges. For zamikannya sections vikoristovuyut hydraulic privіd, rastashovaniya on the console;
arched hydraulics with straightening outbuildings - stinks are secured with exhausting hydraulics for vibrating the great mystical differences of the ends, vibrating for additional movement of the stops;
lanzyugov - allow you to pick up the sticks of pipes and quickly pick up on the elements (lance and chereviki);
lankovі - can be installed on standard pipe sizes for additional addition or removal of external lanok, and the screed mechanism is a screw;
eccentrics - folded from arcs with supports and a grip at the looking eccentric. It is possible to vicorate for pipes of a singing range of diameters, vikoristovuyuchi supports and rearrange the axis.

All refurbished more outbuildings can achieve great weight and great dimensions. If a stick of a large diameter is used, then the stench is ideal, but for the selection of pipes of a small diameter it is impractical. For them, specially created legends portable outbuildings for centering pipes of small diameter:

mounting clamp for zvaryuvannya pipes and vіdvodіv – storáєєєєєєєєєєєєєєєєєєєєє з slapping, traverses, stoporіv, screw;
centralizer-clamp - maє the form of clamps with a fixator;
centralizer "collar" - folded from a screw with a handle, staples, traverses, prisms.

Such attachments allow to center pipes of the same diameter. Behind the help of the clamps, the ends of the pipes are displayed and the tacks are shriveled. The seam is less likely to be welded after the clamp is removed. For sticking pipes of different diameters (among them, with a large difference), there are special centralizers made of independent fixation blocks.

Attachments for precise centering and clamping of pipe collars, flanges, tees, adapters and other pipe fittings may have a more foldable design. More precisely, the implication of the elements of impersonal winged guinea pigs.

When choosing, I will add a necessary memory that the outer centralizers may have a special design and cannot always ensure the high accuracy of the inner edges. Internal outbuildings should always give a better centering quality, but not everywhere can be installed. When vikoristanny internal attachments, the seam can be welded up, and as a result, the bells are put together, put tacks on the back, then we know the attachment and only then the seam is welded.

The degree of folding of the welded pipeline to lie down in the presence of a variety of factors, among them, the accuracy of the positioning of the other elements. Cost of highways of different diameters. Before zvaryuvannyam trumpets and shaped elements were installed at the design position and superficially fixed. Krim of stationary supports for this vicory plant outbuildings - centralizers. Attachments allow to carry out the sticking of pipes without the welding edges and the installation of welding gaps.

Main differences

For roztashuvannyam trumpets, the centralizers are divided into two types - external and internal. Attachments are also differentiated by the design of the fixing elements and the drive.

Zovnishni

Centralizers of this type are fixed on the outer surfaces of the pipes, which stick together. The stench may be a mess of awkward constructions and a small mass. Such centralizers are vikoristovuyutsya for skuvannya pipes with a diameter of up to 2000 mm. The most popular among installers are the mechanisms of offensive structures:

lanceugov. The main advantages of this type of brewing centralizers are the simplicity of vikoristannі and the versatility of the pipe diameters that fit. The main napoleglivy element - lance - taut for the help of a mechanical gear drive. A lot of workers are provided with centralizers with additional screws for correcting the geometry (ellipse) of deformed pipes and fittings;
Lankovi. The supporting elements of the structure are rollers, which are installed on the surface of the pipes, which stick together. For tightening the lugs, the centralizers are provided with a screw drive. With the help of zusilla, which is transmitted as a new one, attaching a strong burden to the outer radius of the trumpet;
eccentrics. Attachments are two hinged joints of pivkiltsya, on which spacers are fastened, the tovshchina of which are selected in the fallows according to the diameter of the pipes that stick. Installing and fitting spacers, it is possible to attach centralizers for work with different diameters.

Internal

Allows you to carry out uninterrupted zvaryuvannya pipes, shards do not cross the stick. Internal centralizers are distinguished by a high folding design. There are such types of centralizers for welding pipes with a diameter of over 2000 mm.

Perevagi wikoristannya

Reduced labor costs. Centralizers allow you to set the design of the pipe without significant noises. For the accuracy of the positioning, it is possible to beat mechanized brewing.
Mitsnist z'ednannya. The centralizers help to reach the same width of the seam along the entire stake of the pipe without underflow, filling and lack of penetration.
Saving hydraulic powers. The inner surface of the pipe in the brewing area does not allow gatherings to cross the passage of the medium, which is transported. The stoppage of the centralizer allows the elimination of turbulence and the increase of the hydraulic support.

Our propositions

TOV "TH MOZVARKA" supplying an instrument and the supply of conduits, for example, the business company "Sphere". The catalog of ideas has a wide range of lancet and bagatolan centralizers for welding pipes with a diameter of 12 to 1220 mm. Possession is viroblenno to technical minds, as if it is confirmed by passports and certificates. For the preparation of a pipe centralizer, speed up with the “Koshik”. I will help you with the choice of possession, clarify the delivery and pay you can by contact phone or email, presented in the mountains.

Rutektor company is the official distributor of the property presented in the catalog.

Take a look at the information about the models, the presence in the warehouse, you can order by phone, show more, or send a request.
Vіdraviti zapit

POWER SUPPLY TO THE CENTRATOR

1. Pipe diameter?

2. Tovshchina of the wall of the trumpet?

3. Steel grade s coef. mіtsnostі (MPa)?

4. Technology of welding (manual electric arc, orbital welding, etc.)?

5. Is it necessary to use one centralizer for the entire range of pipe diameters or a single centralizer for skin diameters?

6. Necessary type of centralizer: external centralizer (lancet, screw, clamp, eccentric...), internal centralizer (manual, pneumatic, hydraulic)

7. Is it necessary to correct the straightness of the pipe sticks before welding, see the deformation of the edge of the pipe (flatness, dents)?

8. Is it necessary to weld pipes with water (T-like, L-like)?

9. What are the operating conditions (temperature, fall)?

VIEW THE CENTER

Pipe treading in brewing robots on the main pipelines - it’s more complex, especially for pipes of large diameters, de viconan operations are folded with a significant bunch of elements that stick together. For otrimannya yakіsnogo seam pipe sticks, which are being made, are responsible for being reliable and correctly fixed, for which the stick is to blame for being available for carrying out welding work - this is the role of pipe centralizers.

Virobniki centralizers proponuyut different ways vyshennya zavdan tsentruvannya stik zaleno vіd prinyatї tekhnologii ї zavaryuvalnyh robіt, diametra i materia pipingov, possibliї vyshennostі elіpsnostі і nebhіdnostі vіdvodnosti vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv vіdvodіv.

According to the method of establishing access to the centralizer zone, it is divided into two main groups: internal and external

Vaga zvaryuvanih pipes and as a legacy of susilla, as necessary for superficial fixation of sticks, є criteria for choosing a drive: manual, hydraulic, pneumatic.

Zovnishnі lankovі tsentratori (TSNZ)

Maximum pipe diameter - up to 2000 mm

The centralizers are prepared from the hinges of the lanks, and the stop that pulls the lanks from the world of that, as if clinging to the trumpet. Emphasis can be beaten by looking at a simple manual screw or a hydraulic jack for important and important tasks.

Zovnishhnі arched centralizers TsAN, TsAN-G

Maximum pipe diameter - 900 mm

The design of the arched centralizer is more zhorstkoy, superficial and long-term in povnyannі z lankovy centralizer.

This type of centralizer is composed of 2 or 3 hinged arcuate sections, which are clamped by a screw (TsAN type) or a jack (TsAN-G). The number of sections to be deposited depends on the diameter of the pipes.

Zovnishnі lansyugovі centralizers

Fixation of pipes with lancet centralizers is controlled by a manual worm drive for the tightness of the lancet. Lance centralizers are made in a single-row viconan for pipes with a diameter of up to 300 mm, and in a noble one for pipes and tanks with a diameter of 300 mm to 6000 mm (6m!).

The advantage of this kind of centralizers is the ability to install and universality - one centralizer is suitable for pipes of different diameters.

The centralizer kit can include an attachment for welding L-like inlets. This type of centralizer can be used to correct the elіpsnostі.

Modern eccentric centralizers CNE

Maximum pipe diameter - 500 mm

The design of the eccentric centralizer is similar to the arched one, but the zatisk of the napіvdug is carried out in a new way. manual eccentric clamp. Such a way of tightening will speed up the installation of the centralizer, but it is less necessary, because with insufficient information from the operator, there is a risk of a mimic rose

Zovnishni centralizers - clamps for pipes of small diameters

This type of centralizer is vikoristovuetsya for pipes of small diameters. Clamps have a compact design, which depends on the shape of the pipe. Zatyskach zdіysnyuєtsya manual important mechanism

Internal centralizers mechanical and hydraulic

This type of centralizer can be folded in construction in parallel with horizontal ones, because centralization is carried out not only along the outer contour, but also along the inner contour. This type of centralizer is often used for pipes with outer polyurethane coating, if it is possible to weld only from the inner edge.

Principle dії: the internal centralizer is fixed in one end, and the other one is inserted manually, or it is put on by a vantage-assisted mechanism.

Internal centralizers can be manually mechanically wound pipes with a diameter of up to 300 mm. and more foldable hydraulics for deep pipes in pipes with a diameter of 300 mm

For zvaryuvannya fragments during installation of the pipeline vicorist special tools - centralizers for zavaryuvannya pipes. This article has its own attachments, classification and special features.

Priestry

Different types of centralizers are significantly considered for the design. However, for some kind of mood, її add up and fixing elements.

To the main tanks of the centralizers are brought:

superficial fixation;
accuracy of the day;
hardness of stagnation;
longevity.

Zastosuvannya

Centralizers can create a great sphere of stagnation. This is due to the fact that the stench is insured for the construction of pipes of various types and diameters. Looking back at the factories, they stop at the storage of pipelines in the municipal and oil and gas fields. Centralizers serve to fix the total fragments in the pipeline during welding.

The actuality of these tools is due to the great folding of the fragments in the main pipelines in the way of zvaryuvannya, especially of large diameter. The whole is lined with sagging through a small hardness of folded fragments. Whom it is necessary to vanish, having secured peace. Otherwise, the quality of the day will significantly decrease. Moreover, the next thing is to lie, that spivvisnist does not always mean parallelism.

Fixation of fragments for safe and stable expansion of the digestion zone. Before that, as the centralizer is victorious for filling, drops are not formed from the inner side of the stick, which cause turbulence in the flow and promote the operation of the pipeline. This is the name of the defect and the deterioration of the hydraulic parameters, due to which the pressure pump is required.

The centralizer of internal pipes, which zastosovuetsya when zvaryuvanni z pіnopolyurethane coatings, which vikoristovuyutsya in the main lines of singed and water supply. Danish material wins the role of insulation and serves for the placement of the cable to control the pipeline. A heat-resistant coating is applied over the new one. Zvazhayuchi on tse zvaryuvannya can be turned on and off from the inner side.

Gidnosti i nedolіki

To the main priorities of the centralizers are brought:

raising the quality of the zvaryuvannya for the accuracy of the exact spreading and fixation, which ensures the trivality of the operational term;
reduction of labor costs;
mobility;
not high quality;
rich functionality, which is related to the stability of pipes different types and reconciliation.

The main shortfall of the centralizers is vvazhayut pevne vartosti robit. Before that, a lot of industrial models are characterized by a large mass (up to hundreds of kg). Therefore, for their zastosuvannya, you will need vantazhopidyomnі outbuildings. It also makes the work more expensive.

It is also possible to align the outer and inner vidi.

Instruments of the first type are characterized by such advantages:

small dimensions and weight for large models;
the simplicity of vikoristannya;
mozhlivistyu zastosuvannya for any minds.

The main nedolіk polyagaє u urivstomu vedennі robіt, razumovlennuyu nebhіdnіst stіynogo poіyvannya єіnstrumentu.

The main advantage of the internal centralizers is the safety of the uninterrupted supply. However, there are great and important tools of folding construction, which stosuvannya pidomnogo obladnannya.

Models and prices

The selection of the centralizer is affected by the low criteria.

Pipe diameter. First, the skin type of the tool is covered for a specific range of diameter. In another way, for thin parts (larger than 800 mm) follow the vicorist models of a hard construction (large or arched), and with smaller diameters, eccentric options are used.
Vimogi to the bitterness of zvaryuvannya. In some cases, there are limits for defects in the order (including the absence). I will improve the quality of the zvaryuvannya for the safety of the lancet models.
Boundary pressure. For the creation of the most stable welding seam, it is necessary to zastosovuvat centralizers with hydrozatisk.
Pipe material. Do you plan to analyze the tools of all types of universal, proteins to become robotic polypropylene pipes. At times, you need internal options.
Universality. The best for this pokaznik vvazhayut lanzug models.

The variety of centralizers is collapsing at the borders. So, the simplest and most famous Bagatolan models with a manual drive can be delivered for 1.5 thousand. rubles, even as the price of internal hydraulics becomes approximately 350 yew. In this rank, the art is recognized by the design, recognition, and also by the brand.

Three types of tools for quality see Vietz and Clamp products.

It should be noted that the simplest post-button centralizer is clumsy and inexpensive to create independently.

When building pipelines, it is necessary to save straight lines or straight pipes. So that the edges of the pipes were evenly connected along the entire stake, to be fixed, as they are called centralizers. Centralizers for zvaryuvannya pipes zastosovyvaetsya as a pіd hour laying of the main pipelines, as well as during the work in the foragers and living quarters.

Appointment of centralizers:

speeding up the process of zvaryuvalnyh robots;
the possibility of installing pipes and pipeline fittings (inlets, transitions, tees, compensators) from the savings of the necessary fittings;
zabіgannya v_dhilennyam pipes on the kut nahely or rozbіzhnostі on the area of the cut;
the possibility of installing pipes on a vase, with vikoristannі pіdёmnih outbuildings and budіvelnoї tehniki;
fixation of pipes for fixing the necessary gap, which ensures proper tightness of the welding seam;
the possibility of building not only steel, but also copper, polypropylene and other pipes.

Although in the home minds, the installation of pipes at 0.5-20 will not be critical, then in the event of a large-meter pipeline, it is necessary to ensure the most direct laying of the main line. Most of the pipes are laid on the back of the prepared support.

vidi

Independently from the rosemaries, the centralizers are of two main types - internal and external. The abbreviation for the designation of the centralizer allows you to designate the type (letter index) and the maximum pipe size (digital index), which stench can be called.

Internal

Internal centralizers (CV) provide access to all outer surfaces of pipes that are welded and allow to apply a seamless seam without front point stitching (tacks). The stench allows you to correct small dents and hollows in a cylindrical shape, turning the edges in the center of the pipe.

behind design features you can see a few types of such outbuildings:

Knives (TsVN) are used for cutting pipes of various diameters.
Hand with spread wings (TsVR) – for a small diameter z'ednannya, z'ednannya zdijsnyuetsya for the rahunok of a hand-held screw.
Hydraulic (TsVG) - allow you to put a sprat of pipes, moving the attachment to the middle of the pipeline behind an additional special rod.
Self-propelled hydraulics - move in the middle of the pipelines, which are loaded for a remote control valve.

The distribution of such centralizers is charged for the rahunok of outbuildings, as they are called zhimki. Zhimki are installed in the pipe and additionally hydraulic (or manual) drive to fix the pipe sticks. Hydraulics to the device coriguє vіdhilennya trumpets in the form of the correct stake.

The centralizer is installed on the edge of one pipe, and another pipe is pushed in by it until the required gap is closed. Then we fix the working position of the pipes and fix the process of welding the seam.

So, as during the carrying out of the zvaruvalnyh robots, the necessary tide is repeated, which cools the surface of the metal, and the internal centralizers are equipped with fans. Abo, for the needs, a technical fan is installed.

Zovnishni

Centralizers ovnіshni (TSN), yakі not be introduced into the pipe, ¾ grips with brackets, which are connected by hinges. Such attachments allow to stucco pipes of various diameters, cosinci, and introduce other fittings. On the view of the mechanisms, as if they are stuck in the middle of the pipe, so the centralizers allow you to carefully close the outer edge of the pipes, but it’s badly suitable for situations, if you need more accurately on the inner edges.

For large-diameter pipes, tight centralizers are required; for these, special equipment (cranes, manipulators) is required. The axis of the main types of such extensions:

Lankovi (TSZN) - bagatohedrons, yakі for installation rahunok or znimannya of additional kilets-lanok can be fixed for fixing pipes of various diameters, a screed for fixing the centralizer is carried out for rahunok screw. In this rank, one centralizer can be vikorated like pipes with a diameter of 50 mm, so pipes with a diameter of up to 2 meters. Modifications, equipped with a hydraulic jack (TsZN-G), allow to increase the strength of the screed, improving the capacity of the screed and bending the contours of the pipes that are connected;

Lantsyugovі (TsNTs) - the most tightened around the pipes, which are connected, are composed of two components - a lancet and a tensioning mechanism,

Eccentric (CNE) - for the structure of the structure, which with arcs of various diameters and a regulating jumper, allow pipes of various diameters to be connected between themselves, pipes with water and adapters. The working range of diameters of such centralizers is from 89 to 426 mm,

Arched (TsAN, TsAN-G) - vykonuyutsya at look like arcuate sections, connected by hinges, are drawn for an additional hydraulic drive. They can be equipped with an attachment for straightening the ends, which are not avoided, for moving the stops. Such centralizers allow to close pipes from 320 to 820 mm.

Butt parameters

Pipes of small diameter are mounted with special attachments, which can be installed on the brewing tables or stagnated during the brewing robots directly on the job:

Vise lanzugovimi and stops.
Simple clamps in the form of cliches with a fixative.
Clamping centralizers (CS) for zvaryuvannya pipes and fittings.

Sound like this centralizers are designed for pipes of the same diameter. However, if you need regular welding of pipes of various diameters, you can prepare a self-contained fixator or add a special attachment from independent fixators for skin pipes. Manual fixators wiggle the front pipe stitching onto the tack, and the welding of the seam is closed.

A different type of centralizer is an extension for the installation of pipes made from polyurethane foam. Tsey pristriy allow you to stop plastic pipes by the diffuse brewing method: insert the pipes at the attachments, heat up, and then close them with a light pressure of the hands. When you take care of your equal straight ahead.

Springs

Let's consider the type of centering extensions - spring centralizer for casing pipes (columns). These mechanisms are vicorated during drilling of naphtha and water sverdlovins, and other structures of underground and underwater vikoristannya.

For the help of such centralizers, an equal gap is provided between the pipe and the walls of the Sverdlovin, concrete rozchin filled without emptying and refilling.

The spring centralizers are folded from two slabs and a few steel strips, as if spiraling onto the walls of the core and do not allow the pipes to break. Such mechanisms make only two seams, and the metal plates, which are used to beat the function, are made from solid steel plates.

Variety of centering mechanisms

The variability of the centralizers to lie in their constructive type, purpose, dimensional dimensions and variety, and to lie in the range of tens of hundreds to hundreds of hundreds of thousands of rubles.

For work in the minds of the master or the periodic installation of butt pipelines “on the spot”, it is enough to buy a standard attachment. Golovna, that these mechanisms could be regulated in the singing range of expansion.

Lance mechanisms start at a price of 2800 rubles, lankov - from 5000 rubles. Eccentric models are more expensive - from 7000 rubles.

The victory of the Lantzug mechanisms low price, simplicity of construction, maintainability, ability to change the integrity of the pipes that can be installed.

Installation of the hydraulic mechanism increases the versatility of the possession, but also increases the efficiency of the robot and functionality. Orientation of some types of pipe centralizers is indicated below.

For professional work, the best centralizers are the German company "Vietz" and the company "Clamp" (USA).