SU1203321A1

SU1203321A1 - Arrangement for pipeline protection

Info

Publication number: SU1203321A1
Application number: SU843772350A
Authority: SU
Inventors: Виктор Николаевич Иванов; Лев Калью Лаур; Александр Иванович Белевский
Original assignee: Предприятие П/Я А-1701
Priority date: 1984-07-20
Filing date: 1984-07-20
Publication date: 1986-01-07

Description

1one

Изобретение относитс к машиностроению и может быть использовано в быстро- разъемных соединени х, в частности в трубопроводах в качестве защитного устройства при нахождении трубопроводов в растыко- ванном состо нии.The invention relates to mechanical engineering and can be used in quick-disconnect couplings, in particular in pipelines, as a protective device when the pipelines are in a stretched state.

Цель изобретени - повышение эксплуатационных качеств путем уменьшени сопротивлени потоку рабочей среды в состыкованном положении трубопроводов с одновременным предупреждением попадани загр знений на внутреннюю поверхность трубопровода со стороны открытой полости.The purpose of the invention is to improve performance by reducing the flow resistance of the working medium in the coupled position of the pipelines while simultaneously preventing contamination from entering the internal surface of the pipeline from the open cavity.

На фиг.1 изображено устройство дл за- ш,иты трубопроводов в исходном положении; на фиг.2 - устройство с открытыми захватами и защитной крышкой.FIG. 1 shows a device for the installation of pipelines in the initial position; figure 2 is a device with open grips and a protective cover.

Устройство дл защиты трубопроводов (фиг.1) содержит защитную крышку 1, установленную со стороны открытой полости трубопровода 2 и удерживаемую в закрытом положении захватами 3 и 4. Верхний захват 3 жестко соединен с защитной крыщкой. Т ги 5 и 6 ишрнирно св заны передними концами с захватами 3 и 4, а другие концы т г пропущены через соединительное звено 7 и имеют упоры 8 и 9. На т гах между упорами и соединительны.м звеном 7 установлены одинаковые пружины 10 и 11, при этом пружина 10 на открывающей т ге 5, св занной с захватом 3, открывающим защитную крышку, расположена между направленными навстречу одна другой поверх- ност .ми соединительного звена 7 и упора 9. Нружина 10 в исходно.м положении устройства находитс в сжатом состо нии, а пружина 11 поджата и создает усилие, необходимое дл преодолени сил сопротивлени ,возникающих при открытии захвата 4. Устройство приводитс в действие приводом 12, установленным на задней части трубопровода 2. В исходном положении устройства между соединительным звеном 7 и упором 9 открывающей т ги 5 имеетс зазор а, который обеспечивает последовательное открытие сначала захвата 4, а затем захвата 3 с защитной крыщкой 1. При открытом положении защитной крышки и захватов (фиг.2), между направленными навстречу одна другой поверхност ми упора 8 т ги 6 и соединительного звена, также имеетс зазор 6, обеспечивающий последовательное за2The device for protection of pipelines (figure 1) contains a protective cover 1 installed on the side of the open cavity of pipeline 2 and held in the closed position by grippers 3 and 4. The upper gripper 3 is rigidly connected to the protective cap. The rods 5 and 6 are crimped by the front ends with the clamps 3 and 4, and the other ends of the tg are passed through the connecting link 7 and have stops 8 and 9. The same springs 10 and 11 are installed between the stops and the connecting link 7 The spring 10 on the opening tag 5, associated with the claw 3, which opens the protective cover, is located between the opposite surfaces of the connecting link 7 and the stop 9. The spring 10 in the initial position of the device is compressed condition, and the spring 11 is compressed and creates effort, it is necessary In order to overcome the resistance between the opening forces of the device 4, the device is driven by a drive 12 mounted on the back of the pipeline 2. In the initial position of the device between the connecting link 7 and the stop 9 of the opening rod 5, there is a gap, which ensures the sequential opening first grip 4, and then grip 3 with a protective cap 1. With the open position of the protective cap and grippers (Fig. 2), between the oppositely directed surfaces of the stop 8 ti gi 6 and the connecting link, also has gap 6, which provides consistent za2

крытие сначала захвата 3 с защитной крыщкой 1, а затем захвата 4, при этом по величине зазоры а и Т га 6, захват и 2) могут быть однако количество в зависимости отthe cover first capture 3 with a protective cap 1, and then capture 4, with the largest gaps a and T ha 6, capture and 2) can however be the number depending on

в равны.in equal.

4 и пружина 11 (фиг. в единственном числе, их может быть любым, диаметра трубопровода дл более равномерного распределени по периметру запдитной крьппки усили прижати ее к фланцу трубопровода.4 and the spring 11 (fig. In the singular, there can be any of them, the diameter of the pipeline for a more uniform distribution around the perimeter of the clamping force pressing it against the flange of the pipeline.

Устройство дл защиты трубопровода работает следующим образом.The pipeline protection device operates as follows.

При подаче давлени в привод 12 (фиг.1), соединительное звено 7 перемещаетс вперед вправо и через пружину 11 приводит в движение т гу 6. В это врем т га 5, удерживаема пружиной 10, остаетс в исходном положении до тех пор, пока не выберетс зазор а, захват 4 в это врем поворачиваетс , освобожда защитную крышку 1. После того как полностью выбираетс зазор а, который выбираетс с таким расчетом, что захват 4 открываетс на угол, не мец1ающ.ий открытию защитной крышки, происходит одновременное открытие захвата 4 и захвата 3 с защитной кры:л- кой 1.When pressure is applied to the actuator 12 (Fig. 1), the connecting link 7 moves forward to the right and, through the spring 11, drives the pull 6. At this time, the pull 5, held by the spring 10, remains in the initial position until the gap a is selected, the grip 4 is at this time turned, releasing the protective cover 1. After the gap a is completely selected, which is chosen so that the grip 4 opens at an angle not measuring the opening of the protective cover, the grip 4 opens simultaneously and grip 3 with protective cover: lkoy 1.

При достижении захватом 4 крайнего открытого положени , начинает сжиматьс пружина 1 и между соединительным звеном 7 и упором 8 т ги 6 образуетс зазор в (фиг. 2). Захват 3 с защитной крышкой 1 в это врем продолжает открыватьс до тех пор, пока не за ни мае свое крайнее положение (фиг. 2).When the gripper 4 reaches the extreme open position, the spring 1 begins to compress and a gap is formed between the connecting link 7 and the stop 8 ti g 6 (Fig. 2). The gripper 3 with the protective cover 1 at this time continues to open until it reaches its extreme position in May (Fig. 2).

После открыти защитной крышки трубопровод 2 может соедин тьс с трубопроводом 13 (фиг.2), при этом в соединенном состо нии трубопроводов 2 и .i3, защитна крышка не мешает потоку рабочей среды, куда не попадают и различного рода загр знени .After opening the protective cover, the pipeline 2 can be connected to the pipeline 13 (Fig. 2), while in the connected state of the pipelines 2 and .i3, the protective cover does not interfere with the flow of the working medium, which does not contain various contaminants.

Работа захватов и пружин при закрытии происходит в обратной последовательности , т.е. сначала закрываетс захват 3 с защитной крьппкой 1 (выбираетс зазор в), при этом пружина 11 разжимаетс и удерживает через т гу 6 захват 4 в открытом положении. После закрыти защитной крышки пружина К) начинает сжиматьс , а захват 4 продолжает закрыватьс и затем прижимает защитную крышку к фланцу 14 трубопровода.The work of grippers and springs when closing occurs in reverse order, i.e. at first, the gripper 3 is closed with the protective flap 1 (a gap c is selected), while the spring 11 expands and holds, through the pull 6, the gripper 4 in the open position. After the protective cover is closed, the spring K) begins to compress, and the gripper 4 continues to close and then presses the protective cover to the pipeline flange 14.

/г/ g

ВНИИПИ Заказ 8403/42 Тираж 897 По.чписное Филиал ППП «Патент, г. Ужгород, ул. Проектна , 4VNIIPI Order 8403/42 Circulation 897 By. Branch Branch of PPP “Patent, Uzhgorod, ul. Project, 4

Claims

DEVICE FOR PROTECTING PIPELINES, comprising a protective cover mounted on the side of the open cavity of one of the pipelines, rotary grips pivotally connected to rods located along the axis of the connected pipelines, and articulated at opposite ends through a connecting link with a drive, characterized in that, in order to increase performance by reducing the resistance to the flow of the working medium in the docked position of the pipelines and preventing the ingress of contaminants on the inner surface l of the pipeline, it is equipped with springs located on the rods, one of which is made opening, and the protective cover is rigidly fixed on the grip connected to it, and the other rods are made fixing, while on all rods there are end and intermediate stops, between which the connecting link is placed , on the opening rod, a spring is installed between the end stop and the connecting link, on the locking rods, the springs are placed between the connecting link and the intermediate stop, and the gap between the connecting link and exact focus on the opening rod in the closed position of the device is equal to the gap between the connecting link and the end-face abutment on the locking rods in the open position.

cover first capture 3 with a protective cover 1, and then capture 4, while the size of the gaps quince equal.

The rod 6, the gripper 4 and the spring 11 (Figs. 1 and 2) can be singular, however, their number can be any, depending on the diameter of the pipeline for more uniform distribution of the force of pressing it against the pipeline flange along the perimeter of the protective cover.

10 A device for protecting the pipeline operates as follows.

When applying pressure to the actuator 12 (figure 1), the connecting link 7 moves forward to the right and through the spring 11 drives the rod 6. At this time, the rod ' ⁵ 5, held by the spring 10, remains in its original position until the gap a is selected, the grip 4 at this time rotates, releasing the protective cover 1. After the gap a is completely selected 2θ, which is selected so that the grip 4 opens at an angle that does not interfere with the opening of the protective cover, the grip 4 is simultaneously opened gripper 3 with protective cover 1.

When the grip 4 reaches its extreme open position, the spring 11 begins to compress and between the connecting link 7 and the choke 8 of the thrust 6, a gap is formed in (Fig. 2). The gripper 3 with the protective cover 1 at this time continues to open ³⁰ until it takes its extreme position (Fig. 2).

After opening the protective cover, the pipeline 2 can be connected to the pipeline 13 (Fig. 2), while in the connected state of the pipelines 2 and 13, the protective cover does not interfere with the flow of the working medium, which does not include various kinds of pollution.

The operation of the grippers and springs when closing the lid occurs in the reverse order, i.e. first, the gripper 3 is closed with the protective cover 1 (the gap b is selected), while the spring 11 is opened and holds the gripper 4 in the open position through the rod 6. After closing the protective cover, the spring 10 begins to compress, and the gripper 4 continues to close and then presses the protective cover against the pipe flange 14.