DE3041452T1 - TROUSERS - Google Patents

Description

HOSE

Field of technology

The present invention 'relates to the - »-, construction of flexible drilling lines, particularly concerns the construction of a hose and can be used with the greatest effect for operation under the action of the high Internal pressure and the axial tensile forces in petroleum, gas, Coal as well as in petroleum processing and chemical in- - " used in industry. .- *

Prior art

When operating the wells in the oil and gas industry, hoses of such a construction are required, which can be used under the influence of the high internal pressure and the axial tensile forces. the Hoses of the currently known constructive design, which under the above-mentioned conditions are used, do not have sufficient flexibility, whereby their operating and transport conditions are significantly impaired. The cunning the currently known structural design with sufficient flexibility are but for the operation under not suitable for the action of significant axial tensile forces, which limits their scope of application. You can, for example, in a borehole or a pit not be hooked.

The problem of creating a flexible. Tubing, which can be used under the influence of high internal pressure and axial tensile forces already exists for a long time, but has not yet been solved to a satisfactory extent.

A structural design of the hose is known (see US Pat. No. 3715454, Int. Cl. P .16L 11/12; published 1973), containing an inner carrying element, weld it in the form of cylindrical rings.

35

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forms, which lie at a distance from each other and are connected by rings with semicircular walls between each other, which as a whole with cylindri-. see rings are made and protrude over the latter. The protruding rings have coaxial inputs ^: __ ^:. Countersinks, which forms at least one groove extending over the entire length of the hose. In the $ e-: ~~ - ^m because igen groove there is a reinforcement thread, which;, ..: is attached to the hose over its entire length.

Depending on the number of reinforcement threads - ,, -. the hose of the structural design described can only be used for operation under the action of internal pressure and under the simultaneous action of internal pressure and axial tensile force. In the latter case, additional threads are provided, which serve to compensate for the external axial tensile forces. However, the increase of the number of threads results: ⁷ .ur considerable reduction in the Scblauchflexibilität. The aforementioned hose, reinforced in the axial direction, is characterized by the possibility of using it with simultaneous action of high internal pressure and large axial tensile forces, low spatial, axial and radial expansion, longevity, high specific weight, complexity of manufacture and high consolidation costs.

The hose flexibility with sufficient reinforcement in the axial direction is extremely small. In addition, can the hose will not work in the bent state, because in this case the uniformity of the stress disturbed by reinforcement threads and thus the load-bearing capacity the whole construction can be reduced. The scope of the given is given by the above Hose restricted to a significant extent.

A hose structure is also known (see FR patent specification N, r. 2142764, Int. Cl. F 16L, published

1973) »containing an inner tension tube made of elastic Material and an outer protective jacket with between

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-H -

these arranged reinforcement layers. Each reinforcement layer is a spiral wound metal wrapping formed, the starting angle to the geometric Hose axis according to a certain dependence in the direction of the lower reinforcement layer to " the upper one is changed in a range from 80 ° to 6 °.

The given hose structure is characterized by; - ' sufficient flexibility and the ability to. " record the internal pressure. Since, however, in the course of operation "large axial and spatial expansions, especially in the case of fluctuating internal pressure, come to light, the rub through comes of circumferential threads as a result of their mutual displacement. This will extend the life of the Hoses considerably reduced. In addition, such a structure of the hose can be used under the action do not ensure axial tensile force.

A hose is also known (S. GB patent specification No. 1334025, Int. Cl. F 16L, published 197 *), containing an inner support tube made of elastic material and an outer protective jacket with embedded between them Reinforcement layers. Each layer of reinforcement is as one Row of spirally wound, mutually parallel Threads executed, the thread contact angle to the geömetrisc ien tube axis according to a certain Depending on the direction from the lower reinforcement layer to the upper one changed in a range from 80 to 6 will. Each reinforcement layer is located between intermediate layers of non-metallic fabric.

The given structure of the tubing is also through sufficient flexibility and characterized by the ability to absorb the internal pressure. A hose of the structural design described is here in comparison to the hose described above according to the FR patent specification No. 2142764 much more durable, thanks to the mutual isolation of the reinforcement layers with intermediate layers made of non-metallic fabric.

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304T432

However, a hose of the structure described can only be used with a relatively low internal pressure, which is due to different distribution of forces. «. tion is caused by the internal pressure on the threads of the respective reinforcement layer. '~ rr

In addition, when the hose is operated under the conditions of the fluctuating internal pressure, ^{unbalanced interlayer moments arise as a result of uneven -: "^ -} moderate loading and asymmetrical winding of the ."" Threads that form the reinforcement layers, resulting in the. "

Rubbing through the intermediate layer of tissue and as a result -

Destruction of the hose construction leads.

The hose of the specified structural design ensures its operation under the influence of the axial tensile force also not.

A hose is also known (see U.S. Patent No. 3212523 Nat. Cl. 138-130, published 1965) »containing an inner support tube and an outer one Protective sheath made of elastic material. Between the support tube and the protective jacket there are layers of reinforcement, each of which is a series of spirally wound and toward one another parallel threads (for example, high-strength steel wires) is formed. The layers of reinforcement forming threads are wound in opposite directions to each other and have a starting angle with respect to the geometric hose axis, which extends in the direction from the lower reinforcement layer to the upper changed in a range from 51 ° to 59 °.

The thread winding in the given angular range is explained by the fact that the equal load capacity of the threads under the internal pressure during thread winding is guaranteed at an angle close to 55 °. The angular deviation from the specified value is due to the change in the winding diameter of the respective reinforcement layer and depends on the number of reinforcement layers mentioned.

130Θ17 / 000Θ

Each reinforcement layer lies between intermediate layers of non-metallic fabric, with the lower intermediate layer of the non-metallic fabric being arranged directly _: _ on the support tube and for uniform coverage /; division of the forces generated during hose operation between the '- * ". surface of the supporting tube and the reinforcement layers ^.: """

The hose of the construction described features: - * - ^; is characterized by flexibility and the ability to absorb only the Iiaaaadruck «In addition," - ", a hose of the construction described can be used with relatively high internal pressure, since the respective reinforcement layer is evenly - ■ loaded by the internal pressure and the hose thus has a longer service life ^r when operated under the conditions of the fluctuating internal pressure. This is due to the fact that the interlayer moments that arise are compensated to some extent by the equal load capacity and the almost symmetrical winding of the threads which form the reinforcement layers.

However, the hose of the structural design described above cannot absorb the axial tensile force. This is due to the fact that the winding up of the reinforcement layers forming threads at an angle of

51 ° to 5.9 ° to the geometric hose axis with axial Tensile force no stability of the hose cross-section guaranteed, because the threads act on the surface of the support tube with a considerable force. Through this becomes the equal load capacity of the reinforcement layers forming threads are disturbed, which results in the destruction of the hose.

Taking into account the significant specific Weight of the hose mentioned, it is clear that he even are not stressed by their own weight when pulled can.

When the hoses described above are operated under the conditions of the fluctuating internal pressure

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considerable axial, radial and spatial expansions, as a result of which the service life of the hose is reduced to a certain extent. : *. * Disclosure of the invention : "':':

The invention is based on the object of creating such a hose, the structural design: "": whose reinforcement layers ea enables the latter. ' j. while maintaining flexibility under conditions of simultaneous application of internal pressure: "; * as well as from axial tensile force. . **** -

The task at hand is achieved in that a - Hose, containing an inner, support tube and an outer protective jacket, which are made of elastic material are carried out, between them arranged reinforcement

^ layers, each of which is formed as a series of spirals wound and mutually parallel threads is formed, and one directly on the surface of the support tube lying and for even distribution of the during hose operation between the

^u Support tube and the reinforcement layers resulting intermediate layer of non-metallic fabric, according to the invention has at least two pairs of reinforcement layers directly one above the other, each of the pairs mentioned being designed as two rows of symmetrically wound threads and the thread contact angle of the lower pair of reinforcement layers with respect to the geometric hose axis is greater than the approach angle of the threads of the upper pair of reinforcement layers. ^:

*> Such a constructional design of the tube makes it possible to render the latter flexible by the above-mentioned arrangement of the pairs of reinforcement layers and these high under the conditions of the simultaneous action of internal pressure, which is preferably from the lower ^JJ pair of reinforcement: sschichten is taken with a large thread start angle , as well as with large axial tensile forces,

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3QA1452 -8-

which are preferably taken up by the upper pair of reinforcement layers with a smaller thread angle will use.

By the above described arrangement of, couples BE-- "--wehrungsschichten the operation of the erfindungsgemäßert_ ^::. Hoses is ensured under the conditions of fluctuating internal pressure. This is because that bet""raxfltähnten the hose ^ construction due to the Zusammenwirke-- -: Unless all reinforcement layers have the same load capacity * symmetrically wound threads are guaranteed, wa ». _v ^: the interlayer moments are practically completely compensated-:" * "'balances and thus counteracts the mutual displacement of the reinforcement layers Cooperation of all reinforcement layers to use the hose according to the invention when operating under the conditions of increased internal pressure.

Due to the structural design of the invention

Hoses, which have at least two pairs of reinforcement layers

th contains, of which a pair has a larger thread approach angle with respect to the hose geometrical axis as the second pair, are in the course of the hose operation low axial, radial and spatial expansion and thus a long service life of the hose

tet.

The absence of interposed between the layers of reinforcement Intermediate layers of non-metallic fabric in the hose construction allow the weight, to reduce the wall thickness and the manufacturing costs of the hose.

Between the maximum values of the internal pressure and the axial tensile force at which the hose is functional is, and between the geometric parameters of the shoe and the mechanical properties of the substances

which one is established are the following dependencies detected:

■ 130817/0008

3041A52

L IeLJ

^L r "®Y ~" ^l 2 "e" ₂

Herein mean:

P - maximum internal pressure;

N - maximum axial tensile force; Factors of the structural dissimilarity of the hose, depending on the cross-sectional shape, the number and the approach angle of the threads ^: the lower and the upper pair of reinforcement layers, of the inner and outer diameter ... of the hose, of which Shear module and the pinch -__

contraction number of elastic fabric;

C ^ - permissible tensile force of the threads of the lower pair of reinforcement layers;

O ₁ - allowable tensile force of the threads of the upper pair of reinforcement layers;

E, - modulus of elasticity of the threads of the lower pair of reinforcement layers;

Sp- modulus of elasticity of the threads of the upper pair of reinforcement layers.

This makes it possible, depending on the internal pressure and the axial tensile force at which the Hose is to be used, its required geometric parameters and mechanical properties of the substances, to determine from which the hose is to be made, as well as depending on the latter Characteristics and properties are the maximum values of the internal pressure and the axial tensile force at which the given Hose can work, lay down.

It is expedient that the starting angle of the threads - * of the lower pair of reinforcement layers is in a range from 75 to 90 and the starting angle of the threads of the upper pair of reinforcement layers is in a range from 0 to 20.

By selecting the thread approach angle in the previous - ^ the area mentioned above will be the operation of the hose

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3.Q4U52 -40-

under the action of large axial tensile forces as a result of the cross-sectional resistance of the hose as well as the smallest values of the axial, radial and correspondingly rough elongations during the operation of the hose guaranteed / the most reliable hose modification during its operation under the conditions of increased internal pressure and respectively or the increased axial load * "" is that at which above the upper pair of loading "- wehrungsscbichten at least one additional pair of loading 'wehrungsschichten is arranged, wherein the Fadenanlauf- *.' angle of the respective additional pair of reinforcement layers, which lies in a range from 75 to 90 °, increases continuously, and the thread contact angle - of the respective additional pair of reinforcement layers, which lies in a range from 0 to 20 ° with regard to the thread approach angle of the previous pa-

ars continuously decreased in front of reinforcement layers, which lies in the same area. The change in the thread approach angle of the additional pairs of reinforcement layers in the given loop modification, in which the thread approach angle of the additional pairs of reinforcement layers remained unchanged, allows the internal pressure and the axial tensile force at which the hose can function to be increased by an average of 6% ^ increase.

It is zveckmäßig that the size of the yarn takeup angle lverschiebur $ of each additional pair of Bewehrunp; sschichten in a range of 0.2 to 5 ° and between the sizes of the additional pairs Fadenanlaufwinkelverschiebun- ^ gen following dependency exists:

Λ <^ = (0.2 - 0, _η

Herein mean:

£ ot _n - larger thread approach angle displacement of the additional pair of reinforcement layers, which is more in a range from 75 ° to 90 °;

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Λ β - size _he d yarn takeup dnke displacement of the Tl!

additional pairs of reinforcement ^ layers, which is in a range from 0 to 20 ° .-> _ It is advisable that the reinforcement layers. forming threads are made of fiberglass. "'This makes it possible to use the manufacturing technology

gie of the hose compared to the hose manufacturing technology, in which the threads of steel wire are 'gefer - "*" tigty, to simplify as well as the weight of the hose to, - -

reduce it and make it more flexible. ; * ..;

Brief description of the drawings. Furthermore, the essence of the invention is illustrated the detailed description of the embodiments thereof with reference to the accompanying drawings. Show it:

Fig. 1 shows the overall view of the invention

Hose with breakouts in layers;

Fig. 2 shows a modification of the invention Hose with three pairs of reinforcement layers with layer-by-layer outbreaks; 3 shows a modification of the 5 according to the invention

Hose with three layers of armor with layer-by-layer outbreaks; 4 shows a modification of the hose according to the invention with four pairs of reinforcement

layers with layer-by-layer breakouts.

Preferred variant

The hose according to the invention has an inner support tube 1 made of elastic material (c. Fig. 1 of the enclosed Drawings) and an outer protective jacket 2 made of the same material.

Between the support tube 1 and the protective jacket 2 there are at least two pairs of 3 and 4 reinforcement layers, accordingly 5 »6 and 7» 8, arranged. Each of the mentioned Reinforcement-35

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$ 041452

ungsschichten is arranged directly on another and designed as a series of spirally wound and mutually parallel threads 9 ^. Here, each pair of reinforcement layers 3 and 4, corresponds' {speaking 5, 6 and 7.8 ,. according to the invention as two rows; executed by symmetrically wound threads 9, and the approach _{angle ß ^ 0 of} the threads 9 of the lower pair 3 r reinforcement layers 5 and 6 with respect to the geometric ^ tube axis is greater than the approach angle ß of the thread 9 of the upper pair of 4 reinforcement layers 7 and 8, winding The density of the threads 9 of the respective reinforcement layer, corresponding to 5, 6, 7 and 8, is at least 90%. Between the supporting tube 1 and the lower pair of 3 reinforcement layers 5 and 6 there is an intermediate ■■ Layer 10 made of non-metallic fabric The mentioned intermediate layer 10 serves to evenly distribute the forces occurring between the support tube 1 and the pairs 3 and 4 reinforcement layers, corresponding to 5.6 and 7-8, during the hose operation.

The approach angles 1 c * and ß of the threads 9 can be selected differently, but the most expedient is the hose modification in which the approach angle of the threads 9 of the lower pair 3 reinforcement layers 5 and 6 according to the invention in a range from 75 ° to 90 ° and the starting angle B ₀ α, βϊ ¹ threads 9 of the upper pair of Reinforcement Scl: ichten 7 and 8 is in a range from 0 to 20 °. ■■

The threads 9 », which form the reinforcement layers, corresponding to 5» 6, 7 and 8, can be made of any Material, but when operating the hose under the conditions dej *. large operational loads the most expedient modification in which the threads 9 are made according to the invention from glass fibers. In I'ig. 2 to 4 of the accompanying drawings are hose modifications shown in which on the top pair of reinforcement layers at least one additional pair of reinforcement layers is arranged *

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Ib Fig. 2 of the enclosed. Drawings is shown a hose modification, the use of which when operating the hose under the conditions of increased. Item printing is appropriate. According to the above-mentioned modification, there are 4 reinforcement \, - immediately on the upper pair. layers 7 and 8 an additional Pear II reinforcement layers 12 and 13 arranged. The approach angle ⁰ ^ V "of the threads 9 of the additional pair of 3 reinforcement layers" -: 5 and 6 with respect to the geometric hose axis is * iß. A range from 75 to 90 ° and can match the approach angle- * ,, *.

kel <= <. of threads 9 äes an additional pair 3 1 reinforcement; "

layers 12 and 13 are the same. It is useful, however, that the approach angle of the threads 9 of the pair 11 exceeds the approach angle α _{0 of} the threads 9 of the pair 3 by a size of 0.2 to 5 ° according to the invention.

The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 "'and 8 is in a range from 0 to 20 °. The approach angle <= * ₀ and <* y of the threads 9 of the pairs 3 and 11 thus exceed the approach angle of the Threads 9 of pair 4.

Referring to Fig. 3 of the accompanying drawings, there is a modification of the invention) hoses shown, their use when operating under the conditions of increased axial tensile force is appropriate. According to the mentioned hose modification is immediately on the upper one Pair 4 reinforcement layers 7 and 8 an additional pair 14 reinforcement layers 15 and 16 arranged. the Starting angle of the threads 9 of the upper pair of 3 reinforcement layers 5 and 6 with respect to the geometric hose axis lies in a range from 75 to 90 °. The approach angle ß of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 lies in a range from 0 to 20 ° and can correspond to the approach angle. ß, 9 threads of the additional pair & ewehxüngsschiclitten 15 and 16 be the same. But it is expedient that the approach angle ß, the threads 9 of the pair 14 according to the invention by 0.2 to 5 ° smaller than the approach angle ß ^ of the threads 9 of the pair 4 is.

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The approach angle * _{0 of} the threads 9 of the pair 3 Ot> er ~ v * thus meets the approach angles β _Q and B _{1 of} the threads 9 of the pair 4 and 14.

In FIG. 4 of the accompanying drawings is a Mo ~ "- ification of the hoses according to the invention shown, - ^ _- - their use conditions of increased Innendruckes.als unte also during operation of the hoses both from * £ ~ - the terms of the increased axial tensile force According to the modification mentioned, additional pairs 11 and 14 reinforcement layers * "" corresponding to 1>, 13 and 15, 16 are arranged directly on the upper pair 4 reinforcement layers 7 and 8, one above the other ° * ₀ faed m 9 of the lower pair 3 reinforcement layers 5 and 6 relative to the geometric axis of the tube is in a. range of 75 ° his 90 ° and can be the approach angle <x ^ 9 of the additional pair be the threads 11 Bewehrunpsschichten 12 and 13 is equal to The approach angle β of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 is in a range from 0 to 20 °.

Approach angle ß. the threads 9 of the additional pair 14 reinforcement; s layers 15 and 16 are the same.

But it is useful that the _{start angle 1 o <y of} the threads 9 of the peer 11 according to the invention exceeds the starting angle e * of the threads 9 of the pair 3 by 0.2 to 5 ° and the starting angle ß-, the threads 9 des Pairs 14 according to the invention: 0.2 to 5 smaller than the approach angle β of the threads 9 ⁽ in the pair is 4. The amount of displacement of the approach angles of the threads 9 of the additional pairs 11 and 14 is selected according to the following relationship:

Δ c ^ _s (0 _; 2 - 0, S.
Where

AB ₁ = B ₀ - B ₁

The mode of action of the hoses according to the invention consists in the following.

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When operating the hose according to the invention under the conditions of the internal pressure and the axial pressure. The tensile force is the internal pressure of the support tube 1 (see Fig. 1 of the accompanying drawings) on the pairs 3 and 4 reinforcement layer; th, corresponding to 5 and 6, 7 and 8. . The interior ". Pressure is evenly distributed through the intermediate layer 10 of non-metallic fabric, and preferably" added "from the pair 3 reinforcement layers 5 and 6 Dan"^"-: calc. Addition, the internal pressure in part from the pair 4 Beweh * - approximate layers 7 and 8 added. The pair of 4 reinforcement layers 7 and 8 essentially absorbs the axial tensile force, which is also partially transmitted to the pair of 3 reinforcement layers 5 and 6: i.

When operating the hose in Fig. 2 of the enclosed In the modification shown in the drawings, the internal pressure is preferably absorbed by the pairs 3 and 11 reinforcement layers, corresponding to 5 »6 and 12, 13. the axial tensile force / is preferably absorbed by the pair of 4 reinforcement layers 7 and 8.

When operating the hose in Fig. 3 of the enclosed The modification shown in the drawings is the internal pressure preferably from the pair of 3 layers of reinforcement 5 and 6 and the axial tensile force preferably from the pairs 4 and 14 reinforcement layers, corresponding to 7> 8 and 15 »16, added.

When operating the hose of the modification shown in Fig. 4 of the accompanying drawings, the internal pressure is preferably absorbed by the pairs 3 and 11 reinforcement layers, corresponding to 5 »6 and 12,13». The axial tensile force is preferably absorbed by the pairs 4 and 14 reinforcement layers, corresponding to 7 » ^R and 15, 16.

Below are exemplary embodiments of the invention Hose listed.

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example 1

A hose was produced containing an inner support tube 1 (see.! Fig. 1 of the accompanying drawing - ^ '-_- gen) and an outer protective jacket 2, which is made of rubber - "V:

are manufactured with a modulus of elasticity E _Q «80 kp / cm. Between the support tube 1 and the protective jacket 2 siröcL.:. two pairs of 3 and 4 layers of reinforcement, corresponding to 5i6-as well as?, £> -, arranged. For winding Bewehrungsschi'chten corresponding to 5 »6> 7 and 8, were rows fiberglass ^" * ', the threads of the leading angle © c _o of the threads 9 9 uses the ujk ~ -., Direct pair 3 reinforcement layers 5 and 6 was ( according to the invention) 82 ° and the approach angle β of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 according to the invention was 14 °. The diameter of the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 d, s 0.0975 © and the diameter of the threads 9 of the upper pair 4 reinforcement layers 7 and 8 dg = 0.0770 cm.

The threads 9 of the lower pair of 3 layers of reinforcement 5 and 6 have a modulus of elasticity B, β 0.4750 · 10 kp / om and a permissible tension [Oy 7 «8016.3 kp / cm on. The threads 9 of the upper pair of 4 reinforcement layers 7 and 8 have a modulus of elasticity Ep »0.5207 · • 10 kp / cm and an allowable stress JC ^ J = 8389 »3 kp / cm.

The winding density of the threads 9 of the lower pair 3 layers of reinforcement 5 and 6 as well as the upper pair 4 Reinforcement layers 7 and 8 was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric a thickness of 0.05 cm.

The tube produced has an inside diameter of 3 »8 cm and an outside diameter of 6.1 cm aul. The mass of one running meter of the hose is 2.0 kg.

The hose manufactured in this way was subjected to tests, with the highest permissible values

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the internal pressure, the axial tensile force, the radial, the axial and spatial expansion were determined. Be also, the tubing's minimum bend radius definitely·

The PrUfuag $ m tube * on internal pressure was fol- ^"performed ■ gender as the length dee to be ^tested: .. hoses satisfied the following condition L £ 20 d, where L - length of tubing and d - Schlauchinnendurohmesser The ~.." Tubing was to a hand pump connected through "- which was pumped into the latter liquid (in the given lall water). The liquid pressure in the tube was measured with a pressure gauge, the volume of the liquid to be pumped was measured using a burette, and the change in the length of the tube was measured with a meter stick. In this way, the maximum permissible values of the internal pressure, the radial, the axial and the spatial expansion were determined. The size of the maximum spatial expansion was determined according to the following ratio

£ '5Ί.'"" ο
_rol .s -—γ. 100 ^ 5,

where Vg ₁ JL - Vpluiaen of the pumped-in liquid at the time of the maximum internal pressure} V ₀ - initial volume of the SchlaUobuJLnnnndruckmesaers.

The maximum axial elongation was as follows

Ratio determined. _r L -, - L. where V ₁ ,, - length £ 43 = 100 * ^F1

of the hose to the point of maximum internal pressure; V ₀ - the catch length of the hose.

The maximum fiadial expansion was determined according to the following ratio: c 1 ■ "" ο _1m «^ ax. ^e "" I ₀ ^ * ^100% '

To ^; When the maximum permissible value of the axial tensile force was tested, a hose with a length of 1 m was tested for the interaction of the internal pressure and the axial tensile force. The test was durchg by means of a shredding machine and a hand pump * _r & fühfc to which the hose is connected. During the test, the internal pressure was kept constant by pumping out the liquid with the hand pump. At the time of determining the highest *. WnWjf *. ■ '<WS ***, the axial tensile

according to the above-mentioned formulas, the maximum allowable value of the axial, radial and spatial Elongation determined. : -

The bending test of the hose was carried out on an oscillating bending machine. The hose was connected to the hand pump, and the internal operating pressure in the range from 150 "" to 250 kp / cm was maintained by pumping the liquid into the hollow space of the hose during β * of the test. The tubing was to ^ the yarn breakage of the reinforcement ssjsshichten taking into-account the determination of minimum Biegutjgshalbmes--. sers bent.

The test results are summarized below

represents: ■

2 - maximum internal pressure, kp / cm .. 740

- maximum permissible axial tensile force, Mp * ·. 26.2

- maximum permissible radial elongation, in

Percent of the initial parameters of the hose in the unloaded state 0.2

- maximum permissible axial expansion, in

Percentage in relation to the initial parameters of the tubing in the unloaded

Condition 0.9

- maximum permissible spatial expansion,

as a percentage with respect to the initial parameters of the hose in the unloaded state State 1.1

- minimum bending radius of the

Hose, m 0.6

Example 2

A hose was produced containing an inner support tube 1 (see Pig. 1 of the accompanying drawings) and an outer protective jacket 2, which consists of

Made of rubber with a modulus of elasticity E = 80 kp / cm are.

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",,> '■■■ · ■■■■■ -.- ..

Between the support tube 1 and the protective jacket 2, two pairs of 3 and 4 reinforcement layers, accordingly 5 »6i7 and 8« For winding up reinforcement; * layers, corresponding to 5> 6 »7 and 8, the rows; * the fiberglass threads 9 are used. The approach angle 1 <*, the Threads 9 of the lower pair 3 reinforcement layers 5 and:. 6 was (according to the invention) 90 °, and the approach angle β

of the threads 9 of the upper pair 4 reinforcement layers 7 and According to the invention, 8 was 5 · The diameter of the threads 9 ** of the lower pair of 3 layers of reinforcement 5 and 6 ^ = 0.097.5 " em and the diameter of the threads 9 of the upper pair 4 loading " Defense layers 7 and 8 dg = 0.0770 cm.

The threads 9 of the lower pair of 4 layers of reinforcement

5 and 6 have a modulus of elasticity E ₁ = 0.4750 * 10

2 r * i 2

lsp / cm as well as a permissible saving Uo J = 8016.3 kp / cm

The threads 9 ^ of the upper pair 4 reinforcement _{layers 7 and 8 have a modulus of elasticity E 2} = 0.5207 »• 10 kp / cm and a permissible tension JG ^] = 8389.3 kp / cm.

The winding density of the threads 9 of the lower pair 3 layers of reinforcement 5 and 6 and the top pair of 4 layers of reinforcement 7 and 8 was 90%

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 §m arranged,

Β§ϊ heJPgeifcelitie Scfiaüöh has an inside diameter of 1.0 cm and an outside diameter of 3 »6 cm. The mass of one running meter of the hose is Qr7 leg.

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

- maximum permissible internal pressure, kp / cm ² .. 13ΟΟ

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304U52 -U-

- maximum permissible axial tensile force, Mp .. 8.2

- maximum permissible radial expansion, in Percent related to the Ajaf catcher parameters of the hose in the unloaded

Condition 0.1 "* *

- maximum permissible axial strain, _{in: _:} percent by the Anfangspa- * parameters of the hoses in the unloaded ^r "** th state 1.2" - · ν.

- maximum spatial expansion, "JiS.

in percent with respect to the initial * ->

parameters of the hose in the unloaded State 1.3

- minimum bending radius of the hose, m.,> .... 0.3

Example 3

A hose was produced containing an inner support tube 1 (see FIG. 1 of the accompanying drawings) and an outer protective jacket 2, which are made of rubber with a modulus of elasticity E _Q = 80 kp / cm. Between the support tube 1 and the protective jacket 2, there are two pairs of 3 and 4 reinforcement layers, corresponding to 5 »6 and 7, 8. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 »6> 7 and 8. The approach _{angle 0C 0 of} the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 was 75 ° (according to the invention) and the approach angle ß of the threads 9 of the upper pair of 4 reinforcement layers 7 (ind 8 was 18 (according to the invention) °. The diameter of the threads 9 of the lower pair

^J 3 moving layers 5 and 6 1 = 0.0975 cm and the diameter of the threads 9 of the upper pair of 4 reinforcement; layers 7 and 8 d ₂ = 0.0770 cm.

The threads 9 of the lower pair 3 reinforcement layers 5 and 6 have a modulus of elasticity E _n a 0.4750 * 10 ⁶

- ³ ^ kp / cm and an allowable stress / GSj = 8016.3 kp / cm.

The threads 9 of the upper pair 4 reinforcement layers 7 and

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ρ have a modulus of elasticity E ₂ = 0.5207 \ 10 kp / cm

and an allowable tension IG "J-8389» 3 kp / cm.

The winding density of the threads 9 of the lower pair "reinforcement layers 5 and 6 and of the upper pair 4 _; " reinforcement layers 7 and 8 was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged.

The tube manufactured has a _Innendurch-. "Diameter of 1.6 cm and the inlet has an outer diameter of 4.2 The mass loading of a running meter of the tubes carries * 1.3 kg.

The hose produced in this way was subjected to tests in accordance with the ¹ ^ methodology given in Example 1.

The test results are summarized below.

gestelt:

- maximum internal pressure, kp / cm .. 950

j. · - maximum permissible axial tensile force, Mg .. 8.5

- maximum permissible radial expansion, in Percentage in relation to the initial parameters of the hose in the unloaded Condition 0.9

- maximum permissible axial expansion, in Percent in relation to the

diameter of the hose in the unloaded state 0.3

- maximum permissible spatial expansion, as a percentage with respect to the initial parameters of the hose in the unloaded state State 1.2

- minimum bending radius of the 8-inch

; ■ uchs, m ■> 0.3

Example 4 '■

A hose was produced containing an inner support tube 1 (see Fig. 1 of the accompanying drawings

130S17 / O00S

gen) and an outer protective jacket 2, which are made of rubber with a modal of elasticity Sq- * 80 kp / ail. Between the support tube 1 and the protective jacket 2: -_ there are two pairs of 3 and 4 layers of reinforcement, corresponding to / 5,6 and 7,8. For winding up voiV ^: reinforcement * ^ * layers, corresponding to 5 »6» 7 and 8, sieves of glass, fiber threads 9 were used. The approach angle o ^ d $ j £ threads 9 ■ 'of the lower pair of 3 reinforcement layers 5 and 6 was - * "" (according to the invention) 80 ° and the approach angle 1 Q of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 was "-] according to the invention 0 °. The diameter of the threads 9 of the other pair 3 reinforcement layers 5 and 6 d = 0.0975 cm, and the diameter of the threads £ of the upper pair 4 reinforcement layers 7 and 8 dp = 0.0770 cm.

! 5 The threads 9 of the lower pair 3 reinforcement layers 5 and 6 have a modulus of elasticity E ₁ a Q, 4950 · 10 kp / cm and a3 allowable tension (C ^ j = 8016.3 TSp / cm. ^: I

The threads 9 of the upper pair of reinforcement _{layers 4 and 8 have a modulus of elasticity E 0} β 0.5207 · 10 ⁶

2 O-1 2

kp / cm and an allowable stress / O, J = 8389.3 kp / cm on.

The winding density of the threads 9 of the lower pair 3 reinforcement layers 5 and 6 as well as the upper pair 4 Reinforcement layers 7 and 8 was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged.

The tube produced has an inside diameter of 10.0 cm and an outside diameter of 12.8 cm on. The mass of one running meter of the hose is 4.4 kg.

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

130617/0008

η-

- maximum permissible γ internal pressure, kp / cm .. 410

- maximum permissible axial tensile force, Mp .. 40.0

- maximum permissible radial expansion, as a percentage of the initial parameters of the hose in the unloaded state 1.0 "

- maximum permissible axial expansion, in: ■ percent with respect to the initial

meter of the hose in the unloaded "

th state 0.2

- maximum permissible spatial expansion, in percent with respect to the beginning s-narameter of the hose in the unloaded state 1,2

-minimum bending radius of the

Hose, m 1.8

Example 5

A hose was produced containing an inner support tube 1 (see Fig. 1 of the accompanying drawings) and an outer protective jacket 2, which consists of

■ 2

Rubber with a modulus of elasticity E ₀ = 80 kp / cm are made. Between the support tube 1 and the protective jacket 2, there are two pairs of 3 and 4 reinforcement layers, corresponding to 5 »6 and 7» 8. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 | 6, 7 and 8. The approach angle <^ _{o of} the thread 9 of the lower pair of 3 reinforcement layers 5 and 6 was (according to the invention) 85 ° and. the approach angle β _{Q of} the threads 9 of the upper pair 4 reinforcement layers 7 and 8 was 20 ° according to the invention. The diameter of the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 d = = 0.0975 cm and the diameter of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 dp = 0.0770 cm. i; Other threads % of the lower pair of 3 reinforcement layers 5 and 6 have a modulus of elasticity E- = 0.47 ^ 0 • 10
on.

en a modulus of elasticity E, 0.47 ^ 0 10 kp / cm ^ and an allowable stress JC ^] = 8016.3 kp / cm

130S17 / 0C0S

The threads 9 of the upper pair 4 layers of reinforcement 7

and 8 have a modulus of elasticity E ~ β 0.5207

6 2 f ~ ί

• 10 kp / cm and a permissible stress Ifjl = 838913

2 L * J

kp / cm.

The winding density of threads 9 of our pair * 3 reinforcement layers 5 and 6 as well as the upper / tx pair 4. Reinforcement layers 7 and 8 was 90%. ^

Immediately on the surface of the support tube 1 ' ^: "An intermediate layer 10 of cotton fabric with a thickness of 0.05 cm was arranged.;

The tube produced has an inner diameter of 1.0 cm and an outer diameter of 3 "6 cm. The mass of one running meter of the hose is 0.7 kg.
The hose produced in this way was subjected to tests according to the methodology given in Example 1.

The test results are summarized below: '

2 - maximum internal pressure, kp / cm .. 1100

- maximum permissible axial tensile force, Mp .. 7 »0

- maximum permissible radial expansion,

in percent with respect to the initial parameters of the hose in the unloaded Condition 0.4

- maximum permissible axial expansion, as a percentage of the initial parameters of the hose in the unloaded! th state 1.1

- maximum permissible spatial expansion, in Percent of the initial parameters of the hose in the unloaded state. 1.5

- minimal bending half-mesa des

Hoses, m 0.15

130817/0008

- Λν -

Example 6

A hose was produced containing an inner support tube 1 (see FIG. 1 of the accompanying drawings) and an outer protective jacket 2, which are made of - · / rubber with a modulus of elasticity Eq = 80 kp / cm. Between the support tube 1 and the protective jacket 2, there are two pairs of 3 and 4 reinforcement layers, corresponding to 5 »6 and 7» 8. For winding: * "'s reinforcement layer s, corresponding to 5 * 6,7 and 8, -I_ rows fiberglass strands 9 were used The starting angle oL ₀ -." - ^ of the threads 9 of the lower pair 3 reinforcement layers 5 Urni ..

6 was 70 (according to the invention) and the approach angle β _{Q of} the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 was 15 (according to the invention). The diameter of the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 d ^ = ss 0.0975 cm, and the diameter of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 d ~ = 0.0770 cm. The threads 9 of the lower pair of 3 reinforcement _{layers 5 and 6 have a modulus of elasticity E 1} = 0.4750 · .10 kp / cm and a permissible tension [6yJ = 8016.3 kp / cm.

The threads 9 a- ^e a upper pair of 4 reinforcement layers

7 and 8 have a modulus of elasticity E ₀ = .0.520 *

10 kp / cm and an allowable tension [C ^ J = 8389.3 kp / cm . '■■. ^[:

The winding density of the threads 9 of the pair of 3 reinforcement layers 5 and 6 and of the upper pair of 4 reinforcement layers 7 and 8 was 90 %,

. An intermediate layer 10 made of cotton fabric with a thickness of 0.5 cm was arranged directly on the surface of the support tube 1.

The tube produced has an inside diameter of 1.6 cm and an outside diameter of 4.2 cm on · The mass of one running meter of the hose is 1.3 kg.

130Ö17 / O0Ö8

-U-

The hose made in a rolohe way was Subjected to tests according to the procedure given in Example 1; · ' Methodology. "-

The test results are summarized below:

- maximum internal pressure, kp / cm .. 820

- maximum permissible axial tensile force, Mp.!. 8.0 ^r "

- maximum permissible radial expansion, in

Percent regarding the initial par

meter of hose in the unloaded

Condition 0.6

- maximum permissible axial expansion, as a percentage of the initial parameters of the hose in the unloaded

Condition ... 0.7

- maximum permissible spatial expansion, in percent with respect to the initial parameters of the hose in the unloaded state • 1.3

- minimum bending radius of the

Hose, m 0.3

Example 7

A hose was produced containing an inner support tube 1 (see FIG. 1 of the accompanying drawings) and an outer protective jacket 2, which are made of rubber with a modulus of elasticity E _Q = 80 kp / cm. Between the support tube 1 'and the protective jacket 2, there are two pairs of 3 and 4 reinforcement layers, corresponding to 5 »6 and 7» 8. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5,6,7 and 8. The approach angle »e _{o of} the threads 9. . of the lower pair 3 reinforcement layers 5 and 6 was Cerfinduägsgemkß) '86 °, and the ¹ on running angle: ^"SS" of ^^ * "* - ^ * of the upper pair 4 Bewehrungssehichten 7 and '8 was according to the invention 25 ° The. Diameter of the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 d = 0.0975 cm

130617/0008

and the Durctimesiser of the threads 9 of the upper P ^ ars 4 Reinforcement _{layers 7 and 8 d 2} = 0.0770 cm.

The threads 9; of the lower pair of 3 reinforcement layers ~ 5: and 6 have a modulus of elasticity E ₁ = 0.4750 · · 10 kp / cm ^c and a permissible stress

[<%] = 8016.3 kp / em *. :.

The threads 9 of the upper pair of 4 reinforcement layers 7 and 8 have a modulus of elasticity Ep = 0.5207 · ^: • 10 kp / cm and a permissible tension J (5 "J = 8389.3 kp / cm.:

The winding density of the threads 9 of the lower pair ". 3 layers of reinforcement 5 and 6 as well as the upper pair 4 Reinforcement layers 7 and 8 was 90%

Immediately on the surface of the support tube 1, an intermediate layer 10 made of cotton gauze with a thickness of 0 »05 cm was arranged.

The tube produced had an inner diameter of 7.5 cm and an outer diameter of 10.3 cm. The mass of one running meter of the hose is -3.6 kg.

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

- maximum internal pressure, kp / cm .. 480

- maximum permissible axial tensile force, Mp .. 20.0

- maximum permissible radial expansion, in

. Percentage in relation to the initial parameters of 3® meters of the hose in the unloaded

Condition * 0.4

- maximum permissible axial expansion, as a percentage of the initial parameters of the hose in the unloaded state 1.4

130617/0008

30AH52

- maximum spatial expansion, in percent with respect to the initial parameters of the hose in the unloaded state 1.8

- minimum bending radius of the

Hoses, πι 0.8 "'

Example 8: .— :.

(1 s Figure of the appended drawings, ~ ^ 'voltages...) It was prepared a tube containing a ^ inner support tube 1 and an outer protective jacket 2 which is made ^{of, "":} rubber with a modulus of elasticity Bq s §0 kp / cra are made. Between the support tube 1 and the protective jacket 2 there are two pairs of 3 and 4 reinforcement layers, corresponding to 5> 6.7 and 8. Rows of glass fiber threads 9 were used to wind up reinforcement layers corresponding to 5>6> 7 and 8 «* <, The threads 9 of the lower pair of 3 reinforcement layers 5 and 6 was 78 ° (according to the invention) and the approach angle β of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 was 12 ° (according to the invention).

The diameter of the threads 9 of the lower pair of 3 reinforcement layers 5 and 6 d = 0.0975 cm and the diameter of the threads 9 of the upper pair of 4 reinforcement layers 7 and 8 do = 0.0770 cm.
The threads 9 of the lower pair of 3 layers of reinforcement

5 and 6 have a modulus of elasticity E = 0.4750 * 6 2 r ι

• 10 kp / cm and an allowable stress / Cvj = 8016.3

kp / cm.

The threads 9 of the upper pair of 4 reinforcement _{layers 7 and 8 have a modulus of elasticity E 2} = 0.5207

• 10 kp / cm ii ^ d one permissible! Voltage (C ^ J = 8389.3 |: p / ^{cm; -;} ■ ^::.:. '■ -ι ·

The winding density of the threads 9 of the lower pair; "C 3 reinforcement layers 5 and 6 as well as the upper pair of 4 reinforcement layers 7 and 8 was 90 %,

Immediately on the surface of the support tube 1 an intermediate layer 10 of cotton fabric with a thickness of 0.05 cm was arranged.

130617/0008

The tube manufactured has an internal diameter of 2.5 cm and a Außendurchmesst r of 5 »1 ⁰ ^. The mass of one running meter of the hose is “1.6 kg.
The hose produced in this way was subjected to tests according to the methodology given in Example 1.
_r The following are zusammenpe- the test results "

Represents:. .1

ρ IG - maximum permissible internal pressure, kp / cm .. 680 - maximum permissible axial tensile force, Mp .. 16.0 * _m%

- maximum permissible radial expansion, in percent with respect to the initial parameters of the hose in unloaded

Condition 0.5

- maximum permissible axial expansion, in 'percent with respect to d < r Initial parameters of the hose in the unloaded state .... 0.6

^ - maximum permissible spatial expansion, in Percentage in relation to the initial parameters of the hose in the unloaded

State 1.1

_{? t} - - minimum bending radius of the

Hose, m 0.4

Example 9.

Ss was prepared a tube containing an inner support tube 1 (gen s. Fig. 1 of the accompanying drawings _{O (_)} and an outer protective jacket 2 which β of rubber having a modulus of elasticity E _Q 80 kp / cm are manufactured! Intermediate three pairs of 3 »4 and 11 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged in the support tube 1 and the protective jacket 2. For winding up reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13» rows of threads 9 made of polyamide fiber and for winding up reinforcement layers 7 and 8 glass fiber

130617/0008

threads used. The approach angle d of the threads 9 of the pair of 3 reinforcement layers 5 and 6 is the approach angle ^ of the threads 9 of the pair 11 reinforcement rails -, -. th 12 and 13 equal and is 82 °, and the start-up wind - "_"; kel ß of the threads 9 of the pair 4 probation layers 7 and "-" - "8 was 16 °.

The diameter of the threads 9 .the pairs 3 and 11 loading ^{"wehrungsschichten,} correspondingly, 5 and 6, 12 and 13 ': ** d, s 0.16 cm, and the diameter of the threads 9 of the pair." 4 layers of reinforcement 7 and 8 dp = 0.0975 cm.

The threads 9 of pairs 3 and 11 reinforcement layers £ “. corresponding to 5 »6 and 12,13 have a Elastizitätamodul E = 0.0038 x 10 kgf / cm and an allowable voltage ^[= l to ²⁰⁰⁰ '° whom. ²

The threads 9 of the pair of 4 reinforcement _{layers 7 and 8 have a modulus of elasticity E 2} * 0.4750 · 10 kp / cm and a permissible tension] ^] = 8016.3 kp / caa.

The winding density of the threads 9 of the pairs 3 »4 and 11 layers of reinforcement, corresponding to 5 »6, 7» 8, 12 and 13 was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged.

The hose produced has an inner dorsal knife 1.6 cm and an outer diameter of 4.4 cm. The mass of a running meter of the hose is

i, 5 kg. - ':. ;, ■

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

- maximum allowable internal pressure, kp / cm., 760

- maximum permissible axial tensile force, Mp .. 7.0 - maximum permissible radial expansion, in percent with respect to the initial

130617/0008

meter of the hose in the unloaded state 1,2

- maximum permissible axial expansion, in ^: -_ percent with respect to the initial space- ..-- "-

meter of tubing in the unloaded ~

Condition 0.8

- maximum permissible spatial expansion, " as a percentage of the initial parameters of the hose in the unloaded -, ·

State 2.0 '; ::.

- minimum bending radius of the "-« ·

Clever ha, m 0.35

Example 10

A hose was produced containing an inner support tube 1 (see Fig. 2 of the accompanying drawings) and an outer protective jacket 2 which is made of rubber

are made with a modulus of elasticity Eq - 80 kp / cm.

Between the support tube 1 and the protective jacket 2, three pairs 3 »4 and 11 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 »6, 7, 8, 12 and IJ. The approach angle of the threads 9 of the pair of 3 reinforcement layers 5 and 6 is equal to the approach angle <* t _{4 of} the threads 9 of the pair 11 of reinforcement layers 12 and 13 and is 87 °. The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 and 8 was 18 ° (according to the invention). The diameter of the threads of pairs 3 and 11 reinforcement layers

OQ th, corresponding to 5 and 6, 12 and 13 d, = 0.0975 cm and the diameter of the threads 9 of the pair of 4 reinforcement _{layers 7 and 8 d 2} - 0.0770 cm. The threads 9 of the pairs 3 and 11 reinforcement layers, corresponding to 5 and 6, 12 and 13 have a modulus of elasticity E- = 0.4750 '10 kp / cm

ic and an allowable tension [Gy] = 8016.3 kp / cm. the

Threads 9 of the pair of 4 reinforcement layers 7 and 8 have a modulus of elasticity E ₀ = 0.5207 * 10 kp / cm and a CIj = 8389.3 kp / cm.

130617/0008

304H52

The winding density of the threads 9 of the pairs of 3 reinforcement layers, corresponding to 5 and 6, 12 and 13 and of the pair of 4 reinforcement layers 7 »and 8 was 90 %. -.

Immediately on the surface of the Urag pipe 1 was ^ ";; de an intermediate layer 10 on cotton fabric with a '"- .." V Thickness of 0.05 cm arranged.

The hose produced has an inner diameter of 1.0 cm and an outer diameter of 3 »7 cm; --- ■. The mass of a running meter of tube loading Jl "contributes 0.8 kg. "-'-"

The tube produced in eolche manner - _-v ^ '■ checks cleared in accordance with the methodology set out in the example first

The test results are summarized below:

- maximum permissible internal pressure, kp / cm .. 1920

- maximum permissible axial tensile force, Mp. · · 5 »0

- maximum permissible radial expansion, in ^ Percentage in relation to the initial parameters of the tubing in the unloaded

Condition 0.3

- maximum permissible axial expansion, in Percent of the initial parameters of the hose in the unloaded

th state 0.9

- maximum permissible spatial expansion,

in percent with respect to the initial parameters of the hose in the unloaded state 1.2

- minimum bending radius

of the hose, m »0.2

Example -11

A hose was produced containing an inner support tube 1 (see Fig. 2 of the accompanying drawings) and an outer protective jacket 2, which is made of rubber with a

p
with a modulus of elasticity E _Q »240 kp / cm. Between

130617/0008

Between the support tube 1 and the protective jacket 2, three pairs 3 »4 and 11 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged. For winding:. of reinforcement layers, corresponding to 5 and 6, 12 and 13, rows of threads 9 made of polyamide fiber and eyelet for winding up reinforcement (η 7 and 8 glass fiber threads) were used. The approach angle c < ₀ of threads 9 of the pair of 3 reinforcement layers 5 and 6 is the starting angle «*, of the threads 9 of the pair of 11 reinforcement layers,.

corresponding to 12 and 13, equal and is 87. The an ~ - running angle ß of the threads 9 of the pair 4 Reinforcement layereii. 7 and 8 was (according to the invention) 8 °.

The diameter of the threads 9 of the pairs 3 and 11 Be-ν reinforcement layers, corresponding to 5 and 6, 12 and 13 d, a 0.16 cm, and the diameter of the threads 9 of the pair 4 layers of reinforcement 7 and 8 d ^ = 0.0770 cm.

The threads 9 of pairs 3 and 11 layers of reinforcement, corresponding to 5 and 6, 12 and 13t have an elastic

c ρ ■. . .

modulus of efficiency E, = 0.0038 * 10 ° kp / cr and a permissible stress [(J ₄ ] = 2000.0 kp / cn ²⁾ .

The threads 9 of the pair of 4 layers of reinforcement 7 and 8

6 2 have a modulus of elasticity E ₂ = 0.5207 '10 kp / cm

and an allowable voltage [0 _Ä J = 8389.3 kgf / cm.

The winding density of the threads 9 of the pairs 3, 4, 25, and 11 reinforcement layers, corresponding to 5 »6, 7» 8, 12 and 13, was 90 %.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged.

The tube produced has an inside diameter of 1.6 cm and an outside diameter of 4.4 cm on. The mass of one running meter of the hose is 1.5 kg.

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

130617/0008

304TA52

The test results are summarized below:

- maximum internal pressure, kp / cm .. 890

- maximum permissible axial tensile force, Mp ..8.0

- maximum permissible radial expansion, in: "

Percent with respect to the initial para- ϊ ^ meter of hose in the unloaded

Condition # 1,0; -

- maximum permissible axial expansion, in: " Percentage in relation to the initial parameters of the hose in the unloaded state 0.3 _ - "

- maximum permissible spatial expansion, in Percentage in relation to the initial parameters of the hose in the unloaded

State 1.3

- Minimum bending radius of the hose, m 0.35

Example 12 ^:

A hose was produced containing an inner support tube 1 (see Fig. 3 of the accompanying drawings) and an outer protective jacket 2 made of rubber with a modulus of elasticity Eq a 240 kgf / cm are. Between the support tube 1 and the protective jacket 2 are three pairs of 3 »4 · and 14 layers of reinforcement, accordingly 5 and 6, 7 and 8, 15 and 16, arranged. Rows of fiberglass threads were used to wind up reinforcement layers 5 and 6 9 and used for winding up reinforcement layers, corresponding to 7 and 8, 15 and 16 made of polyamide fiber. The approach angle ο <^ of the threads 9 of the pair of 3 reinforcement layers 5 and 6 was 86 °. The angle of approach of the threads 9 of the pair 4 is reinforcement layers 7 and 8 the approach angle ß-, the threads 9 of the pair 14 reinforcement layers 15 and 16 equal and is 12 °. The diameter of the threads 9 of the pair 3 reinforcement layers 5 and 6 d · ^ s 0.770 cm, and the diameter of the threads 9 of the pairs

130617/0008

4 and 14 reinforcement layers, corresponding to 7 and 8, 15 and 16 d ₂ = 0.16 cm.

The threads 9 of the pair 3 reinforcement layers 5

6 have a modulus of elasticity E ₁ = 0.5207.10 "'kp / cm and a permissible stress [6j] = 8389.3 kp / cm.

The threads 9 of the pairs 4 and 14 reinforcement layers, accordingly 7 and 8, 15 and 16, have a sinodule of blasticity Ep = 0> 0028 * 10 kp / cm ^ and a permissible Tension [(^ j s 2000.0 kp / cm on.

The winding density of the threads 9 of the pairs 3, 4 and 14 reinforcement layers, corresponding to 5, 6, 7, 8, 15 ~ and 16, was 90 %.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton ^ ewebe with a Thickness of 0.05 cm arranged.

The hose produced in this way has an inside diameter of 2.5 cm and an outside diameter from 5 »3 cni up. The mass of a running meter of the hose is 1.7 kg.

The hose made in this way was Subjected to tests according to those given in Example 1 Methodology. /

The test results are summarized below J

- * maximum internal pressure, kp / cm .. 660

- maximum permissible axial tensile force, Mp .. 7.0

- Highest permissible radial expansion, in percent with respect to the initial distance

r parameter of the hose in the unloaded state 0.6

- maximum permissible axial expansion, as a percentage of the initial parameters of the tubing in the unloaded

.; State j, i 3.0

r ?, highest permissible spatial expansion, ·? · in Prozejai; regarding the beginning spar a-

130817/0008

meter of the hose in the unloaded state 3 »6

- the minimum bending radius of the

Hoses, m 0.45

Example 13 r /.

A hose was produced containing an "_ inner Tragro ir 1 (see Fig. 3 of the accompanying drawings") and an outer protective jacket 2, which is made of rubber: * ■ with a modulus of elasticity Eq = 380 kp / cm; ". are. Between the support tube 1 and the protective jacket 2, three pairs 3, 4 and 14 of reinforcement layers 15 and 16 are arranged. To wind up the reinforcement layers,; * corresponding to 5 and 6, 7 and 8, 15 and 16, rows • per 'glass fiber threads 9 were used. The approach angle x of the threads 9 of the pair of 3 reinforcement layers 5 and 6 was B ⁰ . The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 and 8 is equal to the approach angle β of the threads 9 of the pair 14 of reinforcement layers 15 and 16 and is equal to 5 °. The diameter of the threads 9 of the pair of 3 reinforcement layers 5 and 6 d, η 0.055 cm, and the diameter of the threads 9 of the pairs 4 and 14 reinforcement layerseu, corresponding to 7 and β, 15 and 16 dg »0.0975 cm.

The threads 9 of the pair of 3 reinforcement layers 5 and 6 ^ have a modulus of elasticity E ₁ a Ο, 595Ο · 1Ο kp / cm O ₄ J = 8423.0 kp / cm.

The threads 9 of the pairs 4 and 14 of reinforcement layers, respectively 7 and ', 15 and 16, have a modulus of elasticity Ep = 0.4750 * 10 kp / cm and an allowable

• 3Q Γ * Π 2

^ Tension OiJ = 8016.3 kp / cm.

The winding density of the threads 9 of the pairs 3, 4 and 14 reinforcement layers, corresponding to 5 _t 6 »7» 8, 15 and 16, was 90%.

Immediately on the surface of the support tube 2 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged. J

The tube produced has an inside diameter of 3> 8 cm and an outside diameter of 6.2 cm.

130617/0008

^304U52

The mass of one running meter of the hose is 2.2 kg.

The smoke produced in this way was subjected to tests in accordance with those mentioned in Example 1 Methodology. \.

The test results are shown below in%. represents:

2 - maximum internal pressure, kp / cm .. 720

- maximum permissible axial tensile force, Mp .. 40.0; - - highest admissible badial elongation, in ""

Percent with respect to the initial parameters of the hose in the unloaded t Condition 0.8

- maximum permissible axial expansion, in

Percent with respect to the initial parameters of the hose in the unloaded Status . 0.8

- maximum permissible spatial expansion, in percent with respect to the initial parameters of the hose in the unloaded

Condition 1.6

- minimum bending half-measure r des Hose, m 0.8

Example 14
^ 5 A hose was made containing an inner support tube 1 (see Fig. 4 of the accompanying drawings) and an outer protective jacket 2, which is made of rubber

ρ are manufactured with a modulus of elasticity B _Q = 380 kp / cm. Between the support tube 1 and the protective jacket 2 there are four pairs 3i 4, 11 and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and IG. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16. The approach angle oi _or

load 9 of the pair 3 reinforcement layers 5 and 6 is the approach angle ⁰ ^ the thread 9 of the pair 11 reinforcement; s-

130617/0008

layers 12 and 13 the same and is 73 °. The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 and 8 is equal to the approach angle β of the threads 9 of the pair 14 of reinforcement layers 15 and 16 and is 18 °. The diameter of the threads 9 of the pairs, corresponding to 3 »4, -" -11 and 14, reinforcement layers, corresponding to '5 and 6, 7 ^: .. ^: and 8, 12 and 13, 15 and 16, d _{x 2} »0, 0975 chi ^.: 'The thread 9 of the pairs 3 »4, 11 and 14 birefringence Γ" layers, corresponding to 5 and 6, 7 and 8, 12 and 13 * 15 --- and 16, wiser, a modulus of elasticity E _{1 o} V 0.4750 * • 10 kp / cm and an allowable voltage Tq- "yes: 8016.3 kp / em / on. - ·. '"■;.;:. : ** '

The winding density of the threads 9 of the pairs 3 »4, 11 and 14 reinforcement layers, corresponding to 5 »6, 7» 8, 12, 13, 15 and 16 was 90%.

Unnri btelbar on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged. ·

The tube produced has an inside diameter of 2.5 cm and an outer diameter of 5 »4 cm. The weight of a running; Meters of the hose 1.7 kg. ^. ,, ".,

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

ρ ■ ·

- maximum permissible internal pressure, kp / cm * 1240

- maximum permissible axial tensile force Mp ... 28.0 - maximum permissible radial expansion, in Percentage in relation to the initial parameters of the hose in the unloaded State 1.2

- maximum permissible axial expansion, in

Percent, with respect to the initial par ^:

meter d ^ es hoses in the iiunbe laste- * · th state i 1.8

130617/0008

- maximum permissible spatial expansion,

as a percentage with respect to the initial parameters of the hose in the unloaded state Condition 3 OK

- Minimum bending radius of the hose, m 0.43

Example 15 '

A hose was produced containing an inner support tube 1 (see Fig. 4 of the accompanying drawings) and an outer protective jacket 2, made of rubber "

mi with a modulus of elasticity B ₀ = 380 kp / cm "-.". " 7 and 8, 12 and 13, 15 and 16, arranged.

Rows of polyamide fibers rf ad em 9 were used to wind up reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16. The approach _{angle 0L 0 of} the threads 9 of the pair of 3 reinforcement layers 5 and 6 is equal to the approach _{angle 0C 1 of} the threads 9 of the pair 11 of reinforcement layers 12 and I3 and is 86 °. The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 and 8 is equal to the approach angle β of the threads 9 of the pair 14 of movement layers I5 and 16 and is 10 °. The diameter of the threads 9 of the pairs 3, 4, 11 and 14 Be> -., Reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16 d _n ~ = 0.16 cm.

The threads 9 of ^the pairs 3, 4, 11 and 14 reinforcement layers, correspondingly 5 and 6, 7 and 8, 12 and 13, 15 and 16, have a modulus of elasticity E, ο = 0.0040.

· LO kp / cm unö an allowable tension ^ "\ - 2000.0 kp / cm ^ on; 'L ttJ

The winding density of the thread 9 of the pairs 3, 4, and 14 reinforcement layers, corresponding to 5, 6, 7, 8, 12 and 13, 15 and 16, was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a thickness of 0.05 cm.

130617/0008

304H52 HO-

The tube produced has an inside diameter of 3 »8 cm and an outside diameter of 6.8 cm. The mass of one running meter of the hose is 1.9 kg. . ^: _'-

. The tube produced in this way was' -} tests subjected according to the method mentioned in Example 1. ·: ""

The test results are compiled below: '

- maximum permissible internal pressure, kp / cm .. 430 - " ^:

- maximum permissible axial tensile force, Mp .. 15.5: * "

- maximum permissible radial expansion, as a percentage of the initial parameters of the hose in the unloaded

State 2.1

- maximum permissible axial expansion, as a percentage of the initial parameters of the hose in the unloaded state 2.7

- maximum permissible spatial expansion, in percent with respect to the initial parameters of the hose in the unloaded State · 5 »O

- minimum bending radius

2'5 of the hose, m 0.65

Example 16

A hose was produced containing an inner support tube (see FIG. 2 of the accompanying drawings) and an outer protective jacket 2, which are made of rubber with a modulus of elasticity E _Q «80 kp / cm.

Between the support tube 1 and the protective jacket 2 are three Pairs 3 »4 · and 11 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged. For winding Reinforcement layers corresponding to 5 and 6, 12 and 13 were made Rows of polyamide fiber threads 9 and for winding up reinforcement layers 7 and 8 fiberglass threads used. the

130617/0008

Approach angle ⁰ ^ _{0 of} the threads ^c ; of the pair of 3 reinforcement layers 5 and 6 was 82 °, the approach angle <* _{v of} the threads 9 of the pair 11 reinforcement layers 12 and 13 was 84 ° and the approach angle β _{Q of} the threads 9 of the pair. Reinforcement layers 7 and 8 was 16 °.

The diameter of the threads 9 of the pairs 3 and 11 ^: reinforcement layers, corresponding to 5 and 6, 12 and 13 d, = 0.16 cm, and the diameter of the threads 9 of the pair: 4 reinforcement layers 7 and 8 d ₂ = 0, 0975 cm. : The threads 9 of pairs 3 and 11 reinforcement layers, corresponding to 5 and 6, 12 and 13, have a modulus of elasticity E- = 0.0038 * 10 kp / rm and ο permissible tension [φ /] = 2000.0 kp / cm auj.

The threads 9 of the pair of 4 protective layers 7 and 8 have a modulus of elasticity E ₀ = 0.4750 * 10 kp / cm

O ₁ J = 8016.3 kgf / cm.

The density of the thread 9. of the pairs 31 4 and 11 layers of reinforcement, corresponding to 5 »6» 7, 8, 12 uad 13 is 90%.

Immediately on the surface of the support tube 1 an intermediate layer 10 made of cotton fabric was arranged with a thickness of 0.05 cm.

The tube produced has an inside diameter of 1.6 cm and an outside diameter of 4.4 cm on. The mass of one running meter of the hose is 1.5 kg. -

The tube produced in this way was subjected to tests under of the type defined in Example 1 o ₀ methodology.

The test results are summarized below:

- maximum permissible internal pressure, ko / cm .. 820

- maximum permissible axial tensile force, Mp .. 7.0 oc - maximum permissible radial expansion, in Percentage in relation to the initial parameters of the hose in the unloaded State 1.2

130617/0008

- maximum permissible axial expansion ·, in percent with regard to the initial parameters- ■ ter of the hose in the unloaded state 0.8

- maximum permissible spatial ^elongation: /: in percent with respect to the start. * " ^: . ^: parameters of the hose in the unloaded state 2.0:

- minimum bending radius ■: ...:. of the hose, m 0.35

Example 17 ^: .. \ ^:

A hose was made containing a: "*": inner support tube 1 (see Fig. 2 of the accompanying drawings

► gen) and an outer protective jacket 2, which is made of rubber

2 are made with a modulus of elasticity E _Q = 80 kp / cm. Between the support tube 1 and the protective jacket 2, three pairs 3 »4 and 11 BevBehrunpsschichten, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 »6, 7, 8, 12 and 13. The approach angle <*> of the threads 9 of the pair 3 reinforcement layers 5 and 6 was 87 °, the approach angle cx _{/ of} the threads 9 of the pair 11 reinforcement layers 12 and 13 was 87 ° 30 ^f and the _{approach angle β Q of} the threads

9 of the pair of 4 reinforcement layers 7 and 8 was 18 °.

The diameter of the threads 9 of the pairs 3 and 11 reinforcement layers, corresponding to 5 and 6, 12 and 13 ^ n = 0.0975 cm, and the diameter of the threads 9 of the pair 4 reinforcement layers 7 and 8 & 2 - 0.0770 cm. The threads 9 of the pairs 3 and 11 reinforcement layers, corresponding to 5 and 6, 12 and 13 have a modulus of elasticity E ₁ = 0.4750 * • 10 kp / cm and a permissible tension [(S ₁ ] β 8016.3 kp / cm ² The threads 9 of the pair of 4 reinforcement layers 7 and 8 have a modulus of elasticity E ₀ s 0.5207 · 10 kg / cm

and an allowable stress [(? *] = 8389.3 kgf / cm ² .

130617/0008

The Aufwicklmgsdichte the threads 9 of the pairs 3 reinforcement layers, it was fcsnrechend 5 and 6, 12 and 13 and the pair ⁿ BewehrungnschicLten 4 and 8 90%.

Immediately on the surface of the support tube. 1 wor ^ de an intermediate layer 10 made of cotton fabric with a. Thickness of 0.05 cm arranged. ,

The tube produced has an inner diameter. diameter of 1.0 cm and an outer diameter of 3 »7 cm *. The mass of one running meter of the hose is? ' carries 0.8 kg. . ". '. ·

The hose manufactured in this way was subjected to tests according to the * Methodology.

The test results are summarized below: _v

- maximum internal pressure, kp / cm ^ .. 2000

- maximum permissible axial tensile force, Mp .. 5.0

- maximum permissible redia! elongation-, in

Percent in relation to the initial

meter of hose in the unloaded

Condition 0.3

- maximum permissible axial expansion, as a percentage of the initial parameters of the smoke in the unencumbered

^ Condition L ........... 0.9

- maximum permissible spatial expansion, in percent with regard to the initial parameters of the hose in the unloaded

O ₀ th state 1,2

" minimum bending radius

of the hose, m,. 0.2

Example 19.

A hose was produced containing an inner support tube 1 (see FIG. 2 of the accompanying drawings) and an outer protective jacket 2, which is made of rubber with a modulus of elasticity E _Q = 240 kp / cm

130617/0008

3Q4U52

are. Between the support tube 1 and the protective jacket 2 three pairs of 3, 4 and 11 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, are arranged. For winding up of reinforcement layers, corresponding to 5 and 6, - ^ 12 and 13, rows of polyamide fiber threads 9 and to ^ ' Winding up of reinforcement layers 7 and 8 fiberglass braces ■ · .. used the. The approach angle *% of the threads 9 of the pair

3 reinforcement layers 5 and 6 was 83 °, the Anlaufwin - "* kel" * v of the threads 9 of the pair ll Bewehrungs.schichten 12 ■ * and was 13 88 ° and the Anlaüfwinkel ß _Q of the threads 9 of the pair 4 reinforcement layers 7 and 8 was 8 °.

The diameter of the threads 9 of the pairs 3 and 11 Be -. ^ reinforcement layers, corresponding to 5 and 6, 12 and 13 d, = 0.16 cm and the diameter of the threads 9 of the pair 1

4 layers of reinforcement 7 and 8 d ₂ = 0.0770 cm.

The threads 9 of pairs 3 and 11 layers of reinforcement, corresponding to 5 and 6, 12 and 13, have a modulus of elasticity E, = 0.0038. · 10 kp / cm and an allowable Tension [c5yJ = 2000.0 kgf / cm.

The threads 9 of the pair 4 reinforcement layers 7 and

6 2 have a modulus of elasticity E ₂ = 0.5207 · 10 kp / cm

and an allowable stress [Q ^ J = 8389.3 kgf / cm.

The expansion density of the threads 9 of the pairs 3, 4 and 11 reinforcement layers, corresponding to 5, 6, 7, 8, 12 '** and 13 was 90%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thicko of 0.05 cm arranged.

The hose produced has an inner diameter 30

diameter of 1.6 cm and an outside diameter of 4.4 cm on. The mass of one running meter of the hose is 1.5 kg.

The hose thus produced was subjected to tests similar to those given in Example 1 : Methodology.

The test results are summarized below:

130617/0008

- maximum internal pressure, kp / cm .. 920

- maximum permissible axial tensile force, Mp .. 8.0

- highest admissible badialdehyde, in Percent in relation to the initial

meter dee hoses in the unloaded '''

State ... 1.0> _

- maximum permissible Axi;! elongation, in

Percent with respect to the initial par *

meter of tubing in utibelaste-: "

th state ...... * 0.3

- "hochstzulässige räunliche ^strain: _

in percent with respect to the initial para-: ~ meter of tubing in the unloaded .. ,,

State 1.3

- minimum bending radius

of the hose, m 0.35

Example 19

A hose was produced containing an inner support tube 1 (see FIG. 3 of the accompanying drawings) and an outer protective jacket 2, which are made of rubber with a modulus of elasticity B _n = 240 kp / cm. Between the support tube 1 and the protective jacket 2, three pairs of 3 and 4 layers of reinforcement, corresponding to 5 and 6, 7 and 8, 15 and 16, are arranged. Rows of glass fiber threads 9 were used to wind up reinforcement layers 5 and 6, and polyamide fiber threads were used to wind up reinforcement layers, corresponding to 7 and 8, 15 and 16. The approach angle ot _{0 of} the threads 9 of the pair of 3 reinforcement layers 5 and 6 was 86 °, the approach angle β _{Q of} the threads 9 of the pair of 4 reinforcement layers 7 and 8 was 12 ° and the approach angle β of the threads 9 of the pair 14 Reinforcement layers 15 and 16 was 7 °. The diameter of the threads 9 of the pair of 3 reinforcement layers 5 and 6 d = 0.0770 cm and the diameter of the threads 9 of the pairs 4 and 14 reinforcement layers, corresponding to 7 and 8, 15 and 16, d ₂ = 0.16 cm.

130617/0008

The threads 9 of the lower pair of 3 reinforcement _{layers 5 and 6 have a modulus of elasticity E 1} = 0.5207 * • -.10 kp / cm and a permissible tension [CpJJ s 8389.3. ;.

The threads 9 of the pairs 4 and 14. Reinforcement layers, "'

corresponding to 7 and 8, 15 and 16, have an elastic *.

6 2
modulus of efficiency E ₅ - 0.0028 · 10 ^p kp / cm and a permissible stress [g £ J = 2000.0 kp / cm '".,..:

The exp. ^{: The} density of the threads 9 of the pairs 3, 4, and 14 reinforcement layers, corresponding to 5, 6, 7, 8, 15 and 16, was 90%. :

In the middle of the surface of the support tube 1; an intermediate layer 10 made of cotton fabric with a thickness of 0.05 µm was arranged.

The tube produced in this way has an inner diameter of 2.5 cm and an outer diameter of 5.3 cm. The mass of one running meter of the hose is 1.7 kg.

The hose produced in this way was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

. - maximum internal pressure, kp / cm. i 660 - Maximum permissible axial tensile force, Mp. 9.0

- maximum permissible radial expansion, in Percentage in relation to the initial parameters ces tubing in the unloaded Condition 0.6

- maximum permissible axial expansion, in percent with respect to the initial parameters of the hose in the unloaded Condition 3.0

- maximum permissible spatial expansion, in percent with respect to the initial parameter of the hose in the unloaded state 3.6

130617/0008

- minimum bending radius

of the hose, m 0.55

Example 20

A hose was produced, containing an inner support tube 1 (see Fig. 3 of the accompanying drawings) and an outer protective jacket 2, which consists of -

'■ ■ ■ ■ ■ 2

Gammi ja with a modulus of elasticity Eq = 380 kp / cm are. Between the support tube 1 and the protective man-r tel 2 are three pairs 3 »4 and 14 reinforcement layers 15 :.

and 16 arranged. Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 and 6, 7 and 8, 15 and 16. The approach angle _: "of the threads 9 of the pair of 3 reinforcement layers 5 and 6 was 78 °, the approach angle β. Of the threads 9 of the pair of 4 reinforcement layers 7 and 8 was 6 ° and the approach angle β of the threads 9 of the pair 14 Reinforcement layers 15

ο
and 16 was 4. The diameter of the threads 9 of the pair of 3 reinforcement layers 5 and 6 d = 0.055 cm and the diameter of the threads 9 of the pairs 4 and 14 of the reinforcement _{layers 7 and 8, 15 and 16 d 2} = 0.0975 cm.

The threads 9 'of the pair 3 reinforcement layers 5 and

6 2

have a modulus of elasticity E ₁ = 0.5950 · 10 kg / cm GJJ = 8423.0 kg / cm.

The threads 9 of the pairs 4 unc. 14 reinforcement layers, 7 and 8, 15 and 16, respectively, have a modulus of elasticity E ^ »0.4750 * 10 kp / cm and a permissible Tension [<5j] = 8016.3 kgf / cm.

The winding density of the thread 9 of the pairs 3, 4 and 14 layers of reinforcement, corresponding to 5, 6, 7, 8, I5 and 16 was 9C%.

Immediately on the surface of the support tube 1 was an intermediate layer 10 aU; j cotton fabric with a diameter of 0.05 cm.

The hose produced has an inner diameter 3.8 cm and an outer diameter of 6.2 cm. The mass of one running meter of the hose is 2.2 kg.

■ rf t.

30A1A52

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below. represents ·.

- maximum internal pressure, kp / cm. * 720 - "

- maximum permissible axial tensile force, Mp. 45.0

- Highest permissible radial expansion, in * '" percent; with reference to the initial space * - ~~

meter of hose in the unloaded _ "

th state 0.8. ^: _

- maximum permissible axial expansion, in: "" percent of the initial parameters of the hose in the unloaded

Condition 0.8

- maximum permissible spatial expansion,

in percent with respect to the initial parameters of the hose in the unloaded

Condition 1.6

- minimum bending radius

of the hose, m 0.85

Example 21

A tube was made containing a inner support tube 1 (see Fig. 4 of the accompanying drawings) and an outer protective jacket 2 which is made of rubber

are made with a modulus of elasticity E _Q »380 kp / cm. Between the support tube 1 and the protective jacket 2 there are four pairs 3 »4» 11 and 14 protective layers, corresponding to 5 and 6, 7 and 8, 12 and I3, I5 and 16, respectively.

For winding up reinforcement layers, according to 5 and 6, 7 and 8, 12 and 13, 15 and 16, rows of fiberglass threads 9 were used. The approach angle «^» of the threads 9 of the pair of 3 reinforcement layers 5 and 6 was 78 ° the approach angle Oy of the threads 9 of the pair 11 movement

layers 12 and 13 was 80 ° v The approach angle β of the threads 9 of the pair of 4 reinforcement layers 7 and 8 was

130617/0008

30AU52

18 ° and the approach angle B _{1 of} the threads 9 of the pair of 14 reinforcement layers 15 and 16 was 15 ° 30 ^f . The size of the thread contact angle shift £ o ^ = o ^ ~ oc _o -Z ⁰ and the size of the thread contact angle displacement ^ ₁ = B ₁ - ß _Q = s 2 ° 30 ^f . Thus d ^ = °> ⁸ £% · The diameter of the threads 9 of the pairs 3, 4, 11 and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16 U ₁ 2 = O, O9? 5 cm. The threads 9 of the pairs 3, 4, 11 and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16, have a modulus of elasticity

6 2
2 ⁼ '0.475O * 10 kgf / cm and an allowable stress

= 801 $, 3 kgf / cm. : "" "

The winding density of the threads 9 of the pairs 3, 4, 11 and 14 reinforcement layers, corresponding to 5> 6 _t 7 ".8, 12, 13, 15 and 16 was 90%. . ■ · ^: ...

Immediately on the surface of the support tube 1 was an intermediate layer 10 made of cotton fabric with a Thickness of 0.05 cm arranged.

The hose produced has an inner diameter

knife of 2.5 cm and an outer diameter of 5 »^ cm on. The mass of one running meter of the hose is 1.7 kg. .

The hose produced in this way was subjected to tests according to the methodology given in Example 1. - ^; ..

The test results are summarized below:

- maximum internal pressure, kp / cm .. I320

-Highest permissible axial tensile force, Mp .. 31 »0

- Maximum permissible radial expansion, in ■■■ - .. percent with respect to the initial parameters of the hose in the unloaded

J state 1,2

* maximum permissible axial expansion, in

Percentage in relation to the initial parameters of Schlciuch.3 in the unloaded Condition 1.8

130617/0008

3Q4U52

- maximum permissible spatial expansion, in percent with respect to the initial parameters of the hose in the unloaded

State · · ·· 3 * 0

'' - minimum bending radius:

of the hose, m 0.43: _

Example 22. .

A tube was made containing a; inner support tube 1 's. Fig. 4 of the accompanying drawings; openings) and an outer protective sheath, which is made of rubber manufactured with a modulus of elasticity Eq a 380 kp / cm ^

are. ■. '_. : - "

Between the support tube 1 and the protective jacket 2 there are ** four pairs of 3 »4, H and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16 _r . Rows of poly amide fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 and 6, 7 and 8 ^ 12 and 13 »15 and 16. The approach angle e * _{o of} the threads 9 of the pair of 3 reinforcement layers 5 and 6 was

^c0 86 ° and the approach angle oc ^ of the threads 9 reinforcement layers 12 and 13 was 86 ° 12 ". The approach angle β _{Q of} the threads 9 of the pair of 4 reinforcement layers 7 and 8 was. 10 ° and the approach angle ß ^ of the threads 9 of the pair 14 reinforcement layers 15 and 16 was 9 ° · The size of the <yarn engagement angular displacement ο * _¥ = c * Cj - oc _Q β O ß ° -tz and the size of the yarn engagement angular displacement ^ = .x B ₀ - B ₁ s 1 °. Thus K ^ ₄ = 0.2 ^ B ₁ . - ^l

The diameter of the threads 9 of the pairs 3 »4, 11 and ^ 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16, d _{x 2} = 0.16 cm.

The threads 9 of the pairs 3i 4 »H and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16, have a modulus of elasticity E _{1 o} s. 0.0040 · ._ ■ '■ · 10 kp / cm and a permissible stress Γ <5 ₄ Λ - = 2000.0 kp / cm on

The winding density of the threads 9 of the pairs 3,: 4,

11 and 14 reinforcement layers, corresponding to 5, 6, 7, 8,

12 and 13, 15, 16 was 90 %.

130617/0008

30A1A52

Immediately on the surface of the support tube 1 was an intermediate layer of cotton fabric with a Thickness of 0.05 cm arranged.

The hose produced has an inner diameter knife of 3 »8 cm and an outer diameter of 6.8 cm; _ on. The mass of a running meter of the hose is ", .. carries 1.9 kg. .;

The tube produced in this way was'"" Tests subjected according to the cited in Example 1; - methodology.

The test results are summarized below - "-...

represents:

- maximum admissible pressure, ip / cm .. 440

- maximum permissible axial tensile force, Mp .. 17 - maximum permissible radial expansion, in percent with respect to the initial parameters of the hose in the unloaded state ............................... 2.1

- maximum permissible axial expansion, in

Percent of the initial parameters of the hose in the unloaded state ..... 2.7

- maximum permissible spatial expansion,

in percent with respect to the initial parameters of the hose in the unloaded

Condition 5.0

- minimal bending half gauge

of the hose, m 0.65

Example 23

A hose was produced containing an inner support tube 1 (see Fig. 4 of the accompanying drawings) and an outer protective jacket 2, which is made of rubber

mi with a modulus of elasticity Eq = 380 kp / cm are. Between the support tube 1 and the protective jacket 2 are four pairs of 3 »4 ·, 11 and 14 reinforcement layers, respectively 5 and 6, 7 and 8, 12 and 13, 15 and 16, arranged.

130617/0008

_S2-3ΦΑ1Α52

Rows of glass fiber threads 9 were used to wind up reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16. The approach angle "*" of the threads 9 of the pair of 3 reinforcement layers 5 and 6 was 78 °, and the approach angle <= *, of the threads 9 of the pair 11 reinforcement. rungsschichten 12 and 13 was 79 ° · the approach angle -. ß of the threads 9 of the pair of 4 reinforcement layers 7 and 8 was 18 ° and the approach angle ß, of the threads 9 of the pair f 14 reinforcement layers en 15 and 16 was 16 °. The size of the thread run-up angle:! Shift A ^ s <* / - <* <> -4 ° and the size of the thread run-up angle shift Α ^β χ - ^: ,. s ß - ß, s 2r ° . Thus Δ «* y == 0.5 Δ ^ ν the diameter;" of the threads 9 of the pairs 3, 4, 11 and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16, d _{x 2} = 0.0975 cm.

The threads 9 of the pairs 3 »4» 11 and 14 reinforcement layers, corresponding to 5 and 6, 7 and 8, 12 and 13, 15 and 16, have a modulus of elasticity E _{n o} = 0.4750 *

6 2 Γ 'τ

• 10 kp / cm and a permissible stress / C5J _Ä J = = 8016.3 kp / cm.

The winding density of the threads 9 of the pairs 3 »4, 11 and 14 reinforcement layers, corresponding to 5, 6/7 * 8, 12, 13, 15 and 16, was 90%.

Immediately on the surface of the txag tube 1 was an intermediate layer 10 made of cotton fabric with a thickness of 0.05 cm.

The tube produced has an inside diameter 2.5 cm had an outer diameter of 5.4 cm auJ. The dimension is a 3 meter end of the hose carries 1.7 kg.

The hose thus produced was subjected to tests similar to those given in Example 1 Methodology.

The test results are summarized below:

- maximum permissible internal pressure, kp / cm ² .. 1350

130617/0008

30AU52

- maximum permissible axial tensile force, Mp .. 32.0

- Highest permissible radial expansion, in percent with regard to the initial parameters of the hose in the unloaded _:

State 1.2

- maximum permissible axial expansion, in Percent related to the initial parameters

ter of the hose in the unloaded ^: **

Condition 1.8, -

- maximum permissible spatial expansion, as a percentage of the initial parameters of the hose in the unloaded state, 3 »0

- minimum bending radius

of the hose, m 0.43

Only a few exemplary embodiments of the invention are given above, which include various changes and allow additions, <3ie the expert on this In the field of technology are evident. There are other modifications possible, but the fact of the invention and scope remain within the scope of the patent claim listed below.

Commercial applicability The ί-hose according to the invention can be used for operation under the action of high internal pressure and large axial loads in aggressive and abrasive media for can be used for any purpose. He can help with the inspection, investigation and flushing of the oil wells as well as in the case of oil production from the latter the laying of pipelines of the underwater and the terrestrial oil and gas drilling operations, in the laying of subsea and terrestrial pipelines, in the shafts for the extraction of coal, in the systems of the oil pipelines in the shaft process of the Crude oil extraction, in the facilities for refueling the tankers

130617/0008

8-041492

directly from the sea posts, in the systems for remote control of excavation valves when drilling Oil, gas and exploration wells ta. Like. Get used.

130617/0008

Claims (5)

'SS- 30-152 PATENT CLAIMS 1 ») hose, containing an inner support tube and an outer protective jacket, which are made of an elastic material, between these are- ^ borrowed reinforcement layers, each of which as a series of spirally wound and mutually pa-; parallel threads are formed, as well as an intermediate layer of non-ballic fabric, which; .. is arranged directly on the surface of the support tube and is intended for the even distribution of the forces occurring between the support tube and the pairs of reinforcement layers during operation of the hose , marked by the fact that it has at least two pairs (3) and (4) of reinforcement layers arranged one above the other, corresponding to (5) »(6) and (7)> (8), the respective pair mentioned (3) and (4) as a row of symmetrically wound Threads (9) is formed and the approach angle of the threads (9) of the lower pair (3) of reinforcement layers (5) and (6) with respect to the geometric hose axis greater than the approach angle of the threads (9) of the upper Pairs (4) of reinforcement layers (7) and (8) is. 2. Hose according to claim 1, characterized that the approach angle of the threads (9) of the lower pair (3) reinforcement layers (5) and (6) in a range from 75 to 90 °, and the approach angle of the threads (9) of the upper pair (4) reinforcement layers in one Range from 0 to 20 °. 3. Hose according to claims 1 and 2, characterized in that on the upper pair (4) reinforcement layers (7) and (8) at least one additional pair (11) reinforcement layers (12) and (13) is arranged, the approach angle of the threads (9) of the respective additional pair (11) of reinforcement layers (12) and (13), 'which in a range from 75 to 90 ° is located, increases continuously and the start-up win- 130617/0008 3-0A1A52 angle of the threads (9) of the respective additional pair (14) Reinforcement layers (15) and (16), which in one area from 0 to 20 ° with respect to the approach angle the threads of the previous pair (3) and (4) layers of reinforcement, corresponding to (5), (6) as well as (7), (8) »which lies in the same range, is continuously: .. reduced. ■ \. 4. Hose according to claim 3 »characterized in that the displacement size of the run-up angle of the threads (9) of the respective additional pair (IL) and (14) reinforcement layers, correspondingly -""accordingly (12) , (13) as well as (15) »(16), in a range of 0.2 to 5 ° and between the shift sizes of the approach angle of the threads (9) of the additional pairs (11) ^: _ 15, and (14) the following dependency exists: Δ \ = (0 »2 - 0.8) ^ B _n , where ^ oc - shift amount of the Ατι run wink Is of the additional A pair of reinforcement layers, which is in a range of 75 to 90 °; A ^ - Displacement size of the starting angle Is of the additional A pair of reinforcement layers, which is in a range from 0 to 20 °. 5. Hose according to claim 1, characterized in that that the threads (9), which the reinforcement layers, according to (5) and (6), (7) and 8 form, are made from glass lasers. 30617/0008