RU118400U1 - ASSEMBLY ASSEMBLY-RECOVERER OF ASSOCIATED OIL GAS - Google Patents

Abstract

The utility model relates to thermal power equipment of the oil industry. The technical result consists in simplifying the design, increasing the reliability and efficiency of using associated petroleum gas with obtaining an additional heat source due to heat transfer through a working agent (coolant) separating the solid wall from the burning gas. The associated petroleum gas recuperator-heat recovery unit comprises a housing with inlet and outlet nozzles installed and a swirler. There are at least two outlet pipes, and an open-type firebox is placed in the casing, mounted inside the swirler, in which a flare head is installed, connected to the gas inlet pipe. 8 s.p. f-ly, 2 ill.

Description

The utility model relates to thermal power equipment of the oil industry.

A known recuperator (patent RU No. 2139737, IPC F23L 15/04, publ. 05/20/1998), including a nozzle made of ceramic tubes and connecting elements enclosed in a chamber with outlet and inlet channels, an over-recuperator and sub-recuperator space, an air collector of heated air, an over-recuperator space made communicating with the internal cavity of the air intake through the bypass channels in the wall separating the supra-recuperator space with the air intake.

A known recuperator (patent No. 2196938, IPC F23L 15/04, publ. 01/20/2003), containing coaxially mounted cylinders forming a central gas supply channel and serially connected outer and inner annular air channels, while in the first part along the gas the secondary gas supply channel has a secondary emitter made in the form of a three-petal cross, the cylinder forming the central gas supply channel is made up of two interconnected parts, the second of which is moving gas is a transversely corrugated cylinder.

An active recuperator is known (patent RU No. 2366862, IPC F23L 15/04, published September 10, 2009), comprising a cylindrical body made prefabricated in the form of separate sections with dividing elements attached to them, ensuring cross-flow of air, and air ducts, the housing is located between air inlets, consists of three employees simultaneously direct-flow and counter-current and sequentially located sections.

A known recuperator (patent RU No. 2125207, IPC F23L 15/04, publ. 20.01.1999), the closest in technical essence and adopted for the prototype, containing heat transfer pipes fixed at one end in the inlet manifold, and the other in the outlet, and swirlers, installed at the entrance to the heat exchange pipes, the inlet manifold is divided by a partition into two chambers having inlet pipes, swirlers are installed in one of the chambers, and the cavity of the other is connected to the inner cavity of the swirlers by cylindrical pipes.

However, the known devices have a complex structure, expensive, insufficiently reliable in operation, are not able to ensure the full use of associated petroleum gas.

The inventive utility model solves the problem of more complete use of associated petroleum gas with obtaining an additional source of heat and a heat agent when burning in a heat recovery unit (BUR), in contrast to burning crude petroleum gas (APG) in a flare unit.

The technical result provided by the set of essential features of the utility model is to simplify the design, increase the reliability and efficiency of the use of associated petroleum gas with an additional heat source due to heat transfer through the working agent separating the solid wall from the burning gas (heat carrier).

Reliability is achieved due to the simplicity of the design and the heat-resistant materials used, efficiency is achieved due to heat transfer through the working agent (coolant) separating the solid gas from the burning gas, low cost due to surplus APG previously used in technological processes, which are flared.

The technical result is achieved by the fact that in the heat exchanger-recuperator unit containing the casing with the inlet and outlet pipes and swirl installed, the new one is that there are at least two outlet pipes, and an open type firebox is placed in the casing, mounted inside the swirl, in which a flare head is installed connected to a gas inlet pipe.

The device is made in horizontal or vertical design.

The housing is cylindrical and mounted on a support.

An open type firebox is housed in a “pipe in pipe” type housing.

Outside the housing is a blower fan having a regulating element for supplying cooling air in the form of an air gate.

The inlet pipe is located at the bottom, and the weekend is at the top of the housing.

As the inlet and outlet pipes can be either ducts or a metal pipe of the required diameter.

The blower fan is located with the possibility of purging the body cavity during operation, and the screw-shaped swirler - with the possibility of creating a turbulent flow for more intense heat transfer.

Additionally installed a chimney for the removal of combustion products.

The inventive utility model is illustrated by drawings.

Figure 1 shows the General diagram of the device in vertical design.

Figure 2 shows the General diagram of the device in horizontal execution.

Here: inlet pipe 1, outlet pipes 2, support 3, screw-shaped swirler 4, body 5, air gate 6, blower fan 7, flare head 8, pipe for gas inlet 9, open type furnace 10, chimney 11.

The inventive device can use as a working agent in one embodiment, ambient air, and in another embodiment, water.

The utilizer-recuperator unit in a vertical design (FIG. 1) is a technological apparatus consisting of a cylindrical body 5 mounted on a support 3, in which an open type 10 fire chamber is placed in the form of a “pipe in a pipe”, made in the form of a vertical one (FIG. .1) or horizontal (figure 2) pipe, depending on the layout of the flare.

On the outer side of the open furnace 10 in the space between the housing 5 along the entire length of the device is a screw-shaped swirler 4.

Outside of the housing 5, there is a blower fan 7 located on the support 3 and having a control element for supplying cooling air in the form of an air gate 6.

An inlet pipe 1 is mounted in the body 5 at the bottom for the input of the working agent and two output pipes 2 at the top for the output of the working agent, depending on the working agent used (air or water), which can be either air ducts or a metal pipe of the required diameter.

One outlet pipe 2 of a smaller diameter is used to exit the water, another outlet pipe 2 of a larger diameter is used to exit the air.

In the case of using water 7 as a working agent, the fan 7, the gate 6 are dismantled, the pipe of the air gate 6 and the outlet pipe 2 for air outlet are muffled.

Inside the furnace 10, a flare head 8 is mounted, connected to a pipe for gas inlet 9.

The blower fan 7 is designed to purge the cavity of the housing 5 during operation, and the screw-shaped swirler 4 is used to create a turbulent flow for more intense heat transfer.

The inventive device in horizontal design (figure 2) is distinguished by the following.

An inlet pipe 1 is mounted in the lower part of the housing 5 for introducing a working agent — water, and in the upper part of the housing 5 there is an outlet pipe 2 for discharging a working agent. The device is additionally equipped with a chimney 11 for the removal of combustion products of associated gas.

In a horizontal version of the device, when used as a working agent — water, the blower fan 7, the air gate 6 are dismantled, the nozzle of the air gate 6 and the outlet pipe 2 for air as a working agent are muffled.

At the outlet of the device, the temperature of the working agent can reach up to 600 degrees Celsius depending on the intensity of air exchange. In the future, hot air can be used in heat exchangers as a coolant from the "hot side", for example, in steam generators for generating steam.

To obtain hot water, a direct heating scheme is applicable through a separating solid wall burned with gas in an open type 10 furnace, with a flow and replacement of water in the cavity between the open type 10 furnace and the wall of housing 5, which is a “water jacket”. The configuration in this case with a screw-like swirler 4 is optional.

Temperature control is carried out at the outlet of the installation by closing-opening the air gate 6 of the blower fan 7 when working with air as a working agent (coolant) or the outlet valve when using water as a coolant.

The device operates as follows.

The principle of operation is based on the transfer of heat from a hotter object to a less heated one.

In a vertical version (Fig. 1), the device is located on the territory of the flare economy on a previously prepared foundation with anchor fastening.

Through the existing gas pipeline, gas is introduced through the pipe for gas inlet 9.

Before starting the operation of the installation, turn on the blower fan 7 with a fully open air gate 6 to purge and ensure the supply of a working agent for heat removal. Then, through the pipe for gas inlet 9, gas is supplied to the flare head 8 and the torch is ignited in accordance with the rules for operating the flare. After the ignition produced through the flare head 8, the heat generated from the flared associated petroleum gas will be transferred through the wall of the open type 10 furnace to the working agent - air, heating it. For the intensity of heat removal and air heating, a screw-shaped swirler 4 is used. Heated air through the outlet pipe 2 for air is selected for further use by external consumers. The air temperature at the outlet of the device is regulated by the impact on the air gate 6 of the blower fan 7.

In the case of using water as a working agent, the input of the working agent is carried out through the inlet pipe 1, the output of the working agent is carried out through the outlet pipe 2 for water.

In a horizontal version (Fig. 2), the device is placed on the territory of the flare economy in a horizontal position on a support 3 on a previously prepared foundation with anchor fastening.

Through the existing gas pipeline, the gas inlet through the pipe for gas inlet 9.

Since the open type 10 furnace is equipped with a natural draft chimney 11, there is no risk of gas accumulating inside the open type 10 furnace.

When firing up, the inlet pipe 1 and the outlet pipe 2 are opened for filling and ensuring the flow of water.

Then, through the pipe for gas inlet 9, gas is supplied to the flare head 8 and the torch is ignited in accordance with the operating rules of the flare. After ignition carried out through the flare tip 8, the heat generated from the associated petroleum gas burned will be transferred through the wall of the open type 10 furnace to the working agent - water, heating it. Heated water as a coolant through the outlet pipe 2 is selected for further use by external consumers. The temperature of the water from the installation is regulated by the impact on the regulatory body at the outlet pipe 2.

The claimed device is a furnace for burning excess, unpurified APG, not used in oil preparation technology and previously burned in flare plants. The device transfers heat from flue gases to the cooling furnace of the open type 10 to the air through a metal wall separating the streams, and air is heated, which, in turn, can be used in the future as a working agent.

If necessary, the device can be equipped with a "water jacket" for hot water or a steam generator for generating steam.

When using the device on the territory of the flare economy, no additional arrangement is required, because the equipment is compact enough and only binding to an existing gas pipeline is needed.

At the same time, the oil company refuses to burn APG in a flare plant in accordance with the Decree of the Government of the Russian Federation, avoiding additional fines, and receives an additional source of thermal energy for its own needs.

Claims (9)

1. Block utilizer-recuperator of associated petroleum gas, comprising a housing with installed inlet and outlet nozzles and a swirl, characterized in that the outlet nozzles are at least two, and in the housing, mounted inside the swirl, is an open type firebox in which is installed a flare head connected to a gas inlet pipe. 2. The device according to claim 1, characterized in that it is made in horizontal or vertical design. 3. The device according to claim 1, characterized in that the housing is cylindrical and mounted on a support. 4. The device according to claim 1, characterized in that the open type firebox is housed in a “pipe in pipe” type housing. 5. The device according to claim 1, characterized in that the outside of the housing is a blast fan having a control element for supplying cooling air in the form of an air gate. 6. The device according to claim 1, characterized in that the inlet pipe is located at the bottom, and the output at the top of the housing. 7. The device according to claim 1, characterized in that as the inlet and outlet pipes can be either ducts or a metal pipe of the required diameter. 8. The device according to claim 1, characterized in that the blower fan is arranged to purge the cavity of the housing during operation, and the screw-shaped swirler is capable of creating a turbulent flow for more intense heat transfer. 9. The device according to claim 1, characterized in that an additional chimney is installed for the removal of combustion products.