RU21643U1 - TRANSPORT BOILER PLANT - Google Patents

Abstract

1. Transportable boiler installation includes a steam boiler, a tank for feed water, a fuel tank, water supply and fuel pumps, pipelines for water, steam and fuel with shut-off and control valves, characterized in that it is equipped with a pump for autonomous water filling, connected by a separate pipeline with a water tank, moreover, the pipeline for supplying liquid fuel is laid through a device for heating it, including a hollow body, in which a spiral pipe is placed in communication with the heater of the steam boiler, sleep by a flue gas control unit. 2. Transportable boiler plant according to claim 1, characterized in that it is equipped with a separator with a water discharge unit to increase the degree of dryness of the steam. A transportable boiler plant according to claims 1 and 2, characterized in that it is equipped with a water treatment unit with a scale inhibitor in communication with the prepared water tank, which, on the one hand, is connected to a pump for autonomous water filling, and on the other hand, through a filter, a flow switch and a water pump - with a steam boiler heater and through a separate pipeline and shut-off device - with a chemical tank. 4. Transportable boiler installation according to claims 1 to 3, characterized in that it is equipped with a hot air generation unit including a fan with a separate drive, in communication with a steam-air heat exchanger, communicated in turn through a shut-off device with a steam supply line to the consumer. 5. Transportable boiler plant according to claims 1 to 4, characterized in that it is equipped with a fuel flow meter installed on the fuel supply line to the burner device

Description

The utility model relates to the field of boiler plants and can be used in various industries where the use of steam or hot water is required, in particular, it can be used in the oil field

Transportable boiler plants are known that are used to generate steam and hot water, for example, Steamrator brand manufactured by Steamrator (Finland) A / O - see the prospectus of this company for 1996

The Steamrator installation includes a frame and a container with a removable chimney. On the frame are mounted a steam boiler, fuel and water tanks, pipelines connected to them for steam, water, fuel with shut-off and control valves

Domestic mobile steam-generator sets are also known, for example, PPUA-1600/100, TKU-0.5M, TKU-1.0 / 1.0, manufactured by the Experimental Machines Plant of CJSC NPAK RANKO (see nr Technical Description and Instruction for the operation of a portable boiler plant TKU-0.5M Moscow, 1996) The installation of TKU-0.5M can be taken as a prototype of the claimed utility model

This unit is designed to produce a steam-water mixture for various technological works, in particular in the oil fields, in conditions of moderate and cold macroclimatic regions (at a working ambient temperature from minus 45 ° С to plus 40 ° С)

Installation is made in the form of a metal frame and a container with a removable chimney. Shelter protects equipment from atmospheric precipitation and dust.

A steam boiler with a burner, a tank for feed water, a fuel tank, water supply and fuel pumps, pipelines for water, steam and fuel with shut-off regulating and fuel valves are mounted on the frame

During the operation of the installation, the water coming from the tank is pumped by the water supply pump into the tube part of the boiler. As a result of the operation of the burner device, into which the fuel is supplied by the fuel pump and air, the water in the boiler is heated by the torch from the burner and hot (smoke) gases and turns into saturated steam

When working in oil fields, this unit is used for dewaxing of mining equipment and for cleaning this equipment from oil

All of the above foreign and domestic boiler plants have a number of operational shortcomings that do not allow ensuring their effective use in difficult oilfield conditions, in particular

-filling with water can only be carried out by special tank trucks with forced pumping;

installations are not equipped with devices that prevent scale formation,

- there is no possibility of regulating the steam capacity of the installation and steam characteristics (dryness, temperature, pressure),

installations are not equipped with devices for increasing the efficiency of fuel combustion,

-installations can only work in steam generation mode, while for a number of technologies it is more appropriate to use hot air (for example, to thaw frozen and icy equipment),

-installations are not equipped with means for monitoring the efficiency of fuel combustion, which leads to the operation of installations with low efficiency and violates the environment, insufficient volume of control of operation parameters

The claimed utility model is based on the task of increasing the efficiency of a boiler plant by refueling it with water without special tankers; increasing the overhaul period of the installation by reducing scale formation, providing the possibility of regulation

steam production capacity and steam characteristics; ensuring fuel combustion efficiency; expanding the technological capabilities of the installation due to the possibility of using hot air, ensuring control of fuel combustion efficiency and thereby eliminating environmental damage The solution to this problem is ensured by the fact that the portable boiler installation includes a steam boiler, feed water tank, fuel tank, water supply and fuel pumps, pipelines for water, steam and fuel, and shut-off and control valves The unit is equipped with a pump for autonomous filling of water with a separate pipe a wire with a water tank. In this case, a pipeline for supplying liquid fuel is laid through a device for heating it, including a hollow body, in which a spiral pipe is placed, connected with a heater (coil) of a steam boiler equipped with a flue gas control unit. In addition, the installation is equipped with a processing unit water scale inhibitor communicated with the tank

prepared water, which, on the one hand, is connected to a pump for autonomous water filling, and on the other hand, through a filter, a flow switch, and a water pump with a steam boiler heater.

In addition, the boiler installation is equipped with a hot air generation unit.This unit includes a fan with a separate drive in communication with a steam-air heat exchanger, which, in turn, is connected through a shut-off device with a heat-insulated steam supply line to the consumer, at the end of which there is a distribution device.

The possibility of implementing the claimed utility model is confirmed by the long-term use in foreign and domestic practice of heating liquid fuel in various thermal installations, when it is necessary to reduce its viscosity and surface tension to increase the fineness of its atomization by nozzles, the rate of formation and combustion of the fuel mixture in the volume of the combustion chamber (see r, the book of Yu.M. Pchelkin "Combustion chambers of gas turbine engines, M," Engineering, 1984, pp. 14-15, as well as the book by A.I. Borisenko "Gas dynamics of engines teley, M., "Defense Industry, 1962., page 673)

In practice, various devices are also used to supply various chemicals to prevent the formation or periodic descaling of a steam boiler.

In various typical devices, air heaters are also well known for supplying heated air to a consumer.

That is, technical features that are distinctive for the claimed utility model can be implemented using known means. Distinctive features reflected in the formula of the utility model are necessary and sufficient for its implementation, as they provide a solution to the technical problem of increasing the efficiency of the boiler plant.

In the future, the claimed utility model is illustrated by an example of its implementation, schematically depicted in the attached drawing, showing a schematic diagram of a transportable boiler plant in accordance with this application

A transportable boiler plant (see FIG.) Includes a steam boiler 1 with a burner 2 located in the bottom of the boiler. The burner 2 through the pipe 3 is in communication with the tank 4 for liquid fuel. A bypass pipe 5 with a control valve 6, a filter 7, a fuel pump 8 with a separate drive 9 (as a rule, an electric drive pump, an option is possible) is integrated in the pipeline 3 in series in the direction from the fuel tank 4 to the burner 2

additional use of the variator), a filter 10 and a solenoid valve 11. The solenoid valve 11 provides automatic shut-off of the fuel supply in case of violation of the standard operating modes of the boiler (temperature and pressure). The fuel consumption is controlled by the flow meter 12. The pipe 3 passes through the device for heating the fuel with steam 13, which is a hollow body 14, into which steam can enter from the cavity of the steam boiler 1 through the pipe 15 with a spiral section 16 inside the hollow body 14. The regulation of diesel fuel consumption (which corresponds to the regulation of heat output) can be carried out through the use of an adjustable drive of the fuel pump or through partial bypass of fuel from the discharge line to the suction due to the control valve. The second option is the simplest and most often used in mobile oilfield steam generating units. Steam boiler 1 is connected to the steam supply line to the consumer 17, in which two sections of pipelines 18 and 19 with safety valves 20 and 21 are integrated (2 pcs according to the rules of Gosgortekhnadzor of the Russian Federation), providing discharge of steam into the atmosphere when the pressure is higher than the set values. A pressure control valve 22 and a dispensing device 23 are also integrated in the steam supply line 17 and its outer heat-insulated part 17a. The steam boiler 1 is supplied with water from the water tank 24 through a pipe 25 through a filter 26, a flow switch 27 with a pump 28 with a separate electric drive 30 (discrete or infinitely variable speed control) through the shut-off device 31. The water tank 24 is in communication with a pump 32 for autonomous water filling, as well as with a water treatment unit 33 with a scale inhibitor. Pipelines 25 and 17 are equipped with bends 29 with locking elements for periodic treatment of boiler coils from scale with acid solutions

Air is supplied to the steam boiler 1 by a fan 34 with a separate drive 35 through a pipe 36 through an air damper 37. The flue gases from the boiler 1 are removed through a pipe 38 connected to the flue gas control unit 39. The control unit measures and displays the temperature parameters and properties of the flue gases gases characterizing the completeness of fuel combustion and boiler efficiency. The line 17 is connected through a pipeline 40 through a shut-off valve 41 to a steam-air heat exchanger 42, air into which can be supplied by a fan 43 with a drive 44 through a regulating air valve 45. Hot air is supplied to the consumer through a pipe 46. The exhaust steam from the steam-air heat exchanger 42 is removed through a pipe 47 to water tank. The pipe 40 is in communication with the bypass pipe 48 through a shut-off valve 49 to control the flow of steam through the heat exchanger.

The electric motors 9, 30, 35, 44 and other actuators and controls are powered by an electric generator 50, which, in turn, is powered by a car chassis motor (not shown), on the platform of which all the equipment of a portable boiler plant is located. As an embodiment, the actuators can be driven from an adjustable hydraulic drive system (not shown), the hydraulic pump of which rotates from the chassis transmission or from an electric generator with an independent drive. To increase the degree of dryness of steam, a separator 51 with a water discharge device 52 is installed at the outlet of the boiler.

The work of a portable boiler installation is as follows.

Liquid fuel is supplied from the fuel tank 4 and then through the filter 7 by the fuel pump 8 to the pipe 3 and through the filter 10 and the open solenoid valve 11, the flow meter 12 and the fuel heating device 13 to the nozzle 2 of the steam boiler 1. Monitoring the fuel consumption using the flow meter 12 allows you to optimize the combustion process and indirectly control the degree of dryness of steam. Pump 32 supplies water from an external source to the water tank 24. If necessary, water is pre-treated with a scale inhibitor using a water treatment unit 33. As a result, water must be supplied to the steam boiler, treated in such a way as to prevent scale formation. From the water tank 24 through the filter 26, the flow switch 27 and the open locking device 31 with a pump 28 equipped with an electric motor 30 with an adjustable speed, water enters the heater of the steam boiler 1. Due to the presence of an adjustable electric motor 30, the amount of water supplied to the steam boiler 1 can change and, i.e., steam production of the installation). As an embodiment, an electric motor with a variator or an adjustable hydraulic drive (not shown in FIG.) Can be used as a drive 28. When liquid fuel and air are supplied to the burner 2 by means of a fan 34 with a separate drive 35 through the control air damper 37 and the pipe 36 in the boiler 1, steam is generated from the water supplied by the water pump 32 from the tank 24.

The flue gases generated during the combustion of the fuel exit through the pipe 38, and their composition and temperature are controlled using the flue gas control unit 39. The saturated steam resulting from the operation of the steam boiler 1 enters the consumer through a heat-insulated pipe 17. At the same time, its quantity and pressure are regulated by an adjusting valve 22 and a dispensing device 23. At the same time, to increase the efficiency of liquid fuel combustion in the burner, 2 pairs from the boiler cavity are fed via pipeline 15 to the fuel heating device 13, where it passes through a spiral section of the pipeline 16 inside the housing 14 and through the wall

pipeline 3, through which liquid fuel is supplied, heat exchange occurs between the coolant (steam) and the transported fuel. The exhaust steam from the heating device is discharged into the water tank. The organization of a stable and efficient process of fuel combustion is provided due to the constant predetermined temperature of the liquid fuel at the inlet to the nozzle of the burner 2. Heating the fuel leads to an increase in the fineness of its atomization by the nozzle and the efficiency of combustion of the fuel mixture in the volume of the combustion chamber. As a result, complete and environmentally friendly combustion of the fuel occurs with the optimal ratio of components and maximum heat generation, i.e. increases the efficiency of the boiler plant.

If it is necessary to supply hot air to the consumer (for example, to thaw frozen oilfield equipment), air is supplied by a fan 43 with a separate drive 44 through a regulating air damper 45 to the cavity of the steam-air heat exchanger 42, where it is heated by steam, supplied from line 17 through pipeline 40 and shut-off valve 41, after which the steam is discharged into the water tank through line 47, and hot air is supplied through line 46 to the consumer. This extends the technological capabilities of the installation.

Periodic washing of the steam boiler 1 is carried out by supplying chemicals (acid solutions) through outlets 29.

To increase the degree of dryness of steam at the outlet of the boiler, a separator 51 is installed with a water discharge device 52 into the tank, connected by pipelines 53, 54 and a shut-off valve 55 to the discharge line 17. In the separator, an unevaporated part of the water is separated from the steam for its return to the tank, which prevents irrational use of prepared water.

Claims (6)

1. Transportable boiler installation includes a steam boiler, a tank for feed water, a fuel tank, water supply and fuel pumps, pipelines for water, steam and fuel with shut-off and control valves, characterized in that it is equipped with a pump for autonomous filling of water, communicated by a separate pipeline with a water tank, moreover, the pipeline for supplying liquid fuel is laid through a device for heating it, including a hollow body, in which a spiral pipe is placed in communication with the heater of the steam boiler, sleep burnt by the flue gas control unit.  2. Transportable boiler plant according to claim 1, characterized in that it is equipped with a separator with a water discharge unit to increase the degree of dryness of the steam.  3. Transportable boiler plant according to claims 1 and 2, characterized in that it is equipped with a water treatment unit with a scale inhibitor in communication with the prepared water tank, which is on the one hand connected to a pump for autonomous water filling, and on the other hand, through a filter, a relay flow and water pump - with a steam boiler heater and through a separate pipeline and shut-off device - with a chemical tank.  4. Transportable boiler plant according to claims 1 to 3, characterized in that it is equipped with a hot air generation unit, including a fan with a separate drive, in communication with a steam-air heat exchanger, communicated, in turn, through a shut-off device with a steam supply line to the consumer.  5. Transportable boiler plant according to claims 1 to 4, characterized in that it is equipped with a fuel flow meter installed on the fuel supply line to the burner device of the boiler and a dispensing device installed at the end of the insulated steam supply line to the consumer. 6. Transportable boiler installation according to claims 1-5, characterized in that the actuators are driven by electric motors powered by an electric generator driven into rotation from the running gear of the chassis.