RU71267U1 - STEAM-GAS-TURBINE INSTALLATION FOR CLEANING OIL PIPES - Google Patents

Abstract

The utility model relates to the oil and refining industries and can be used to clean oil pipes from asphalt-resin-paraffin deposits. The steam-gas-turbine installation contains a steam-gas-turbine engine, a pipe cleaning chamber, a gas outlet channel from the steam-gas-turbine engine to the output unit, nozzle nozzles with a water supply manifold for steam generation and nozzles, a water supply manifold for sprinkling of exhaust gases and an air intake. The pipe cleaning chamber is made in the form of a flat thermally insulated pencil case with a lid. The cleaning chamber is equipped with a system of automatic loading and unloading of pipes, including input and output racks made with a slope. The lid of the cleaning chamber is equipped with a sealing seal and mounted on hinged supports, which are locks. At the corners of the lid installed lifts. One end of the lift is mounted on the foundation of the installation, and the other on the cover. The installation is equipped with a transport system in the form of a cart for pipes and a cart for moving cleaning products. The technical result is an increase in environmental safety and reliability of the installation, as well as simplification of its maintenance.

Description

The utility model relates to the oil and refining industry and can be used to clean oil pipes from asphalt-resin-paraffin deposits with a view to their subsequent use for repair and re-use, including for cleaning oilfield tubing arriving for repair from oil production areas.

A known installation for cleaning oil pipes by pulsed impact on the deposits of the air flow moving along the pipe created by the pneumatic pulse generator attached to one of the ends of the pipe (RU 2288788).

There is also known an installation for cleaning the internal cavities of tubing from paraffin deposits, containing a gas generator based on an aircraft engine, a container for accommodating a packet of pipes to be cleaned, and a device for separating and collecting molten paraffin. At the entrance to the device for separating and collecting paraffin there is a control flap that controls the gas flow. During operation of the installation, the gas generator produces a high-temperature gas stream, which is sent to the packet of pipes to be cleaned (RU 95103485).

The disadvantage of these installations is the insufficient efficiency of cleaning pipes from deposits and the inevitability of frequent shutdowns due to overload of the cleaning chamber, which leads to a loss of process productivity and significant emissions of cleaning products into the working area due to the inability to ensure the tightness of the cleaning chamber during its reload.

Closest to the proposed utility model is the well-known steam and gas turbine installation for cleaning oil pipes, containing

steam-gas generator based on an aircraft engine, a pipe cleaning chamber made in the form of a flat heat-insulated pencil case with a lid, equipped with an automatic pipe loading and unloading system including inlet and outlet racks made with a slope, a gas outlet channel from the aircraft engine to the outlet block, nozzle nozzles with a collector water supply for steam generation and nozzles, a water supply manifold for sprinkling of exhaust gases and an air intake (RU 2226129).

A disadvantage of the known installation of the prototype is that at the stage of loading and unloading the cleaning chamber, due to the lack of devices for automatically opening and closing the lid, a vapor-gas mixture is released into the surrounding space, which complicates the maintenance of the installation, reduces its reliability and environmental safety work, in addition, the design of the known installation does not provide for a transport system.

The technical task of the proposed utility model is to create an installation devoid of these disadvantages.

The technical result of the proposed utility model is to increase environmental safety by reducing combined-cycle emissions and noise and the reliability of the installation, as well as simplifying its maintenance.

The specified technical result is achieved by the fact that a steam-gas turbine installation for cleaning oil pipes, comprising a steam-gas turbine engine, a pipe cleaning chamber made in the form of a flat heat-insulated pencil case with a lid, equipped with an automatic pipe loading and unloading system, including inlet and outlet racks made with a slope, a gas outlet a channel from a steam-gas-turbine engine to an output block, nozzle nozzles with a collector for supplying water for steam generation and nozzles, a collector for supplying water for sprinkling flue gas and air intake, equipped

transport system in the form of a cart for pipes and carts for moving cleaning products, the cover of the cleaning chamber is equipped with a sealing seal and mounted on hinged locks, elevators are installed at the corners of the cover, while one end of the lift is mounted on the foundation of the installation, and the other on the cover.

The use of the cover of the cleaning chamber, equipped with a sealing seal, allows to reduce the amount of gas-vapor emissions of the installation by 35-40% compared with the prototype, and the noise impact on the environment by 25-50% compared with the prototype depending on the material and thickness of the coating.

The use of hinged support locks and automatically controlled hoists allows automatic opening and closing the lid of the cleaning chamber, which greatly simplifies lid maintenance, reduces the loading time of unloading pipes by 4-6 minutes (compared with the prototype) in one operation cycle of the installation, minimizes the risk obtaining burns by personnel from the effects of high-temperature gas-vapor emissions due to the removal of personnel from the zone of the cleaning chamber during its opening.

The use of a transport system in the form of a cart for pipes and a cart for moving cleaning products can significantly simplify the maintenance of the installation, reduce the time of unloading pipes and the time of unloading of cleaning products by 2-3 minutes in one operation cycle of the installation, minimizes the risk of personal injury during transport and unloading.

The steam and gas generator can be equipped with an air intake with a system for supplying water or aqueous absorbent solutions for steam generation in a hot stream behind the turbine of an aircraft engine, which increases the efficiency of the installation and ensures the neutralization of harmful emissions entering the working area.

The air intake can be additionally equipped with sound-reflecting deflectors and a sound absorption system installed in the air intake shaft, which increases the comfort of maintenance of the installation, reduces the acoustic load on the personnel.

Preferably, the air intake is knee-shaped and provided with a protective mesh. Providing the steam and gas generator with a knee-shaped air intake with a protective mesh allows avoiding the ingress of extraneous mechanical impurities into the system, which additionally ensures the safety and reliability of the installation.

The elevators installed in the corners of the cover are preferably pneumatic or hydraulic cylinders, which further simplifies the maintenance of the installation. The installation is preferably provided with a container for collecting cleaning products, which is made in the form of a sealed chamber, as well as a tray for collecting cleaning products, which further increases the environmental safety of the work. The steam and gas generator can be equipped with a water injection system in front of the aircraft engine compressor. Installing a water injection system in front of the aircraft engine compressor provides air mixing with finely divided water droplets, while the compressor compression ratio increases and the pressure head behind the nozzle nozzle increases, in front of the pipe bundle and the efficiency of the cleaning process. The steam and gas generator can be equipped with a fuel preparation unit for working on natural and / or associated gas or for working on kerosene, or for working on diesel fuel, or for working on a water-fuel emulsion, which increases the efficiency of the installation.

The cleaning chamber can be equipped with a steam temperature control loop, which additionally ensures the reliability of the installation.

The nozzle nozzle can be equipped with a noise cover, for example, with sound-absorbing filler, which further reduces the acoustic load on the personnel serving the installation.

The output unit can be equipped with a centrifugal separator, as well as a jet-type scrubber-adsorber or shock-inertial type adsorber-scrubber installed at the outlet of the unit, which can significantly reduce harmful emissions into the atmosphere.

The system of automatic loading and unloading of pipes includes inlet and outlet racks, which can be equipped with pushers, for example, with hydraulic drive. At the same time, the input and output racks can be equipped with vibrators, which provide better rolling of pipes, which further simplifies the maintenance of the installation and increases the efficiency of its operation.

The presence of a transport system in the form of a cart for pipes, as well as a cart for moving cleaning products increases work efficiency and simplifies installation maintenance. The cart for moving cleaning products during installation is located inside the sealed chamber and is its main element.

The cleaning process can be carried out as follows.

On the slipway - a table forming the working surface of the cleaning chamber, a preformed package of pipes to be cleaned and moved with the help of a cart is laid. Under the working surface of the table is a bypass channel (bypass), which is a pencil case of rectangular cross section. Through this channel, a high-pressure hot stream exiting the nozzle nozzle is directed to bypass the working surface with pipes during loading or unloading of the cleaning chamber. The rotation of the flow and its direction to the bypass channel is carried out using a special rotary plate located throughout the cross section at the exit of the nozzle nozzle

rectangular section. The damper is driven by a pneumatic or hydraulic cylinder.

The cover of the cleaning chamber has a U-shape, its walls are made of multilayer material. Around the perimeter of the lid, to prevent gas and vapor emissions into the atmosphere, a heat-resistant seal is fixed so that the lid and the working surface of the slipway table form a channel of rectangular cross section.

To the left and right of the side surfaces of the camera is the transport system of loading and unloading. On one side of the lid, a package of pipes is prepared using a special pipe layer, in automatic mode, the pipe package is counted and formed for laying in the cleaning chamber. On the other side of the lid there is a rack on which pipes are rolled out from the cleaning chamber, ending with special pockets, from which the cleaned pipes are taken away for further processing. The working surfaces of the cleaning chamber and the transport system are located in the same plane inclined at an angle, preferably 2-3 °, with a slope towards the discharge pockets. The lid rests on the hinged supports, which are also locks. At the corners of the lid installed lifts: hydraulic or pneumatic cylinders. One end of the lift is mounted on a support, which is the foundation of the installation, and the other end, the “earring” of the rod, is pivotally mounted on the cover. In order to load the cleaning chamber, one side of the lid is lifted with the help of elevators, and the other lies on the hinged supports and is locked by locks from sliding from them. The prepared tube package lies on the preparation rack. The stops controlled by hydraulic or pneumatic cylinders keep the tube package from unauthorized rolling and loading of the cleaning chamber. The loading of the cleaning chamber is carried out by command only with the cover on the loading side fully raised and with a fully formed packet of pipes (the number of pipes in the packet depends on their diameters). After that,

As the cleaning chamber is loaded, the lid is closed simultaneously and the high-pressure vapor-gas flow coming from the nozzle nozzle is transferred from the working position to the “bypass channel” to the “cleaning chamber” position. Thus, emissions of combined-gas mixture into the environment are eliminated, the environmental safety of the installation is increased and its maintenance is simplified at the same time. The presence of a lid locking system increases the reliability of the entire installation. The system of opening and closing the lid itself does not require additional labor, is simple and reliable in operation. After closing the lid, the process of cleaning pipes from deposits occurs due to the melting of resin-paraffins and the removal of deposits by high-speed flow into the system for collecting and collecting cleaning products (output unit). After cleaning the pipes, the steam-gas stream is transferred to the bypass channel, the hinged supports are released from the locks and the lid is opened (one side is lifted) by pulling two rods of pneumatic or hydraulic cylinders from the discharge side and the pipes are scooted along the inclined plane of the table of the cleaning chamber to an inclined one under such the same angle, the plane of the rolling rack or immediately into the pockets of the finished product. If several pockets are installed, then the first pocket from the camera is filled first, after filling it, it is closed with special crossbars that form an inclined plane along which the next processed bag will roll into the next pocket, etc. until all pockets are full. Pipes are removed from the filled pockets for further processing according to the technological process.

Claims (1)

A steam-gas-turbine installation for cleaning oil pipes, comprising a steam-gas-turbine engine, a pipe cleaning chamber made in the form of a flat heat-insulated pencil case with a lid, equipped with an automatic pipe loading and unloading system including inlet and outlet racks made with a slope, the gas outlet channel from the steam-gas turbine engine to the outlet block , nozzle nozzles with a manifold for supplying water for vaporization and nozzles, a manifold for supplying water for sprinkling of exhaust gases and an air intake, characterized in that m, that it is equipped with a transport system in the form of a cart for pipes and a cart for moving cleaning products, the cover of the cleaning chamber has a hermetic seal and is mounted on hinged locks, elevators are installed at the corners of the cover, while one end of the lift is fixed to the installation foundation, and the other is on the lid.