CN215003065U

CN215003065U - Simple and easy oil field associated gas drying and cooling device

Info

Publication number: CN215003065U
Application number: CN202120716511.9U
Authority: CN
Inventors: 高丽; 朱锋; 张国昭
Original assignee: China Petroleum and Chemical Corp; Sinopec Jiangsu Oilfield Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Jiangsu Oilfield Co
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-03
Anticipated expiration: 2031-04-08

Abstract

The utility model relates to a simple oil field associated gas drying and cooling device, which comprises an outer heat dissipation pipe and an inner pipe which are obliquely arranged, wherein the outer heat dissipation pipe is provided with heat dissipation fins; the inner pipe is arranged in the heat dissipation outer pipe, and a space is reserved between the inner pipe and the heat dissipation outer pipe; the top end of the heat dissipation outer pipe is provided with an air outlet pipe, the bottom end of the heat dissipation outer pipe is provided with an air inlet pipe and a liquid discharge pipe, and the air inlet pipe, the air outlet pipe and the liquid discharge pipe are all communicated with the inside of the heat dissipation outer pipe; the top of inner tube is provided with the inlet tube, and the bottom is provided with the outlet pipe, the inlet tube with the outlet pipe all with the inside intercommunication of inner tube. The utility model provides a simple and easy oil field associated gas drying and cooling device has effectively reduced the associated gas temperature, comes out light hydrocarbon and moisture separation, guarantees the good combustion effect of associated gas and improves heating furnace efficiency.

Description

Simple and easy oil field associated gas drying and cooling device

Technical Field

The utility model relates to an oil associated gas purifies the field, concretely relates to is a simple and easy oil field associated gas drying and cooling device.

Background

Currently, the important application of oilfield associated gas in oil fields is to serve as fuel of heating furnaces. Associated gas is a mixed gas, usually mainly comprising methane, and also contains a small amount of impurities such as non-hydrocarbon gas, oil, water, and the like. At present, most of the process flows of associated gas treatment of a transfer station are settlement, oil removal and drying, and a treated natural gas system has the following problems: the gas temperature is high, a large amount of light hydrocarbon and water vapor are still carried, small liquid drops cannot be formed in a common gas distribution bag, and the gas-liquid separation effect is poor; when the oilfield associated gas is used as fuel gas of a heating furnace, the liquid content is high, so that the heating furnace is flameout, and the normal use of a burner is influenced; because the temperature of the associated gas pipeline is reduced along the way, light hydrocarbon and water vapor in the associated gas are condensed into small liquid drops in the pipeline, and the pipeline or a drainer is easily frozen and blocked in winter.

Disclosure of Invention

The utility model aims at providing a can effectively reduce the associated gas temperature, come out light hydrocarbon and moisture separation, guarantee the good combustion effect of associated gas and improve the simple and easy oil field associated gas drying and cooling device of heating furnace efficiency.

The technical scheme of the application is as follows: a simple oilfield associated gas drying and cooling device comprises an outer heat dissipation pipe and an inner pipe which are obliquely arranged, wherein heat dissipation fins are arranged on the outer heat dissipation pipe; the inner pipe is arranged in the heat dissipation outer pipe, and a space is reserved between the inner pipe and the heat dissipation outer pipe; the top end of the heat dissipation outer pipe is provided with an air outlet pipe, the bottom end of the heat dissipation outer pipe is provided with an air inlet pipe and a liquid discharge pipe, and the air inlet pipe, the air outlet pipe and the liquid discharge pipe are all communicated with the inside of the heat dissipation outer pipe; the top of inner tube is provided with the inlet tube, and the bottom is provided with the outlet pipe, the inlet tube with the outlet pipe all with the inside intercommunication of inner tube.

Preferably, the drain pipe is closer to a bottom end of the heat dissipation outer pipe than the air inlet pipe.

Preferably, the heat dissipation outer pipe and the inner pipe are arranged in parallel.

Preferably, the top end of the inner tube extends out of the heat dissipation outer tube to form the water inlet tube, and the bottom end of the inner tube extends out of the heat dissipation outer tube to form the water outlet tube.

Preferably, the number of the heat dissipation outer pipes is multiple, the multiple heat dissipation outer pipes are arranged from top to bottom, and adjacent heat dissipation outer pipes are connected end to end; the inner pipe and the heat dissipation outer pipe are arranged correspondingly, a connecting part is arranged on the inner pipe, one end of the connecting part is connected with the inner pipe, and the other end of the connecting part extends out of the heat dissipation outer pipe; the connecting parts of the adjacent inner pipes are oppositely arranged and connected into a whole.

Preferably, adjacent heat dissipation outer pipes are connected by a bent pipe.

Preferably, adjacent heat dissipation outer pipes are arranged in parallel.

Preferably, the adjacent heat dissipation outer tubes have different inclination directions.

Preferably, the air inlet pipe, the air outlet pipe, the water inlet pipe, the water outlet pipe and the liquid discharge pipe are all provided with valves.

The utility model provides a simple and easy oil field associated gas drying and cooling device has two kinds of using-way:

mode 1, in a hotter environment (such as summer), clear water enters an inner pipe from a water inlet pipe at the upper part and flows out from a water outlet pipe at the lower part, associated gas enters a heat dissipation outer pipe from a water inlet pipe at the lower part, and dried associated gas flows out from a gas outlet pipe at the upper part, so that the associated gas can be cooled by heat dissipation of ambient air temperature through heat dissipation fins; on the other hand, the temperature of the associated gas can be further reduced by performing countercurrent heat exchange on the associated gas and clear water through clear water circulation in the inner pipe, so that the temperature of the associated gas is effectively reduced; after the associated gas is cooled, light hydrocarbon and water vapor in the associated gas are condensed into small liquid drops, the small liquid drops flow to the bottom end along the inclined heat dissipation outer pipe under the action of gravity and are discharged through a liquid discharge pipe, so that the light hydrocarbon and water are separated, the good combustion effect of the associated gas is ensured, and the efficiency of a heating furnace is improved; in addition, small liquid drops can be discharged in time, so that pipelines or drainers are not easy to freeze and block in winter;

mode 2, in a cold environment (such as winter), the inner pipe is not needed, and the associated gas can be cooled only through the radiating fins, so that the waste of energy is reduced.

Drawings

Fig. 1 is one of the schematic structural diagrams of a simple oilfield associated gas drying and cooling device of the present invention;

fig. 2 is a second schematic structural diagram of a simple oilfield associated gas drying and cooling device according to the present invention;

fig. 3 is a third schematic structural diagram of a simple oilfield associated gas drying and cooling device of the present invention;

in the figure: 1. a heat dissipation outer tube; 2. an inner tube; 3. a heat dissipating fin; 4. an air outlet pipe; 5. a water inlet pipe; 6. a water outlet pipe; 7. a liquid discharge pipe; 8. an air inlet pipe; 9. bending the pipe; 10. a connecting portion.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1

A simple oilfield associated gas drying and cooling device is shown in figure 1 and comprises an outer heat dissipation pipe 1 and an inner pipe 2 which are obliquely arranged, wherein heat dissipation fins 3 are arranged on the outer heat dissipation pipe; the inner pipe is arranged in the heat dissipation outer pipe, and a distance is reserved between the inner pipe and the heat dissipation outer pipe so that associated gas can pass through the inner pipe and the outer pipe and the inner pipe are arranged in parallel; the top end of the heat dissipation outer pipe is provided with an air outlet pipe 4, the bottom end of the heat dissipation outer pipe is provided with an air inlet pipe 8 and a liquid discharge pipe 7, and the air inlet pipe, the air outlet pipe and the liquid discharge pipe are all communicated with the inside of the heat dissipation outer pipe; the top of inner tube is provided with inlet tube 5, and the bottom is provided with outlet pipe 6, the inlet tube with the outlet pipe all with the inside intercommunication of inner tube. In this embodiment, the liquid discharge pipe is closer to the bottom end of the heat dissipation outer pipe than the air inlet pipe, so as to discharge liquid drops more thoroughly. In practical use, the air inlet pipe, the air outlet pipe, the water inlet pipe, the water outlet pipe and the liquid discharge pipe are all provided with valves so as to be convenient to control.

The simple oil field associated gas drying and cooling device has two use modes:

During actual manufacturing, the top end of the inner pipe is arranged outside the heat dissipation outer pipe to form the water inlet pipe, and the bottom end of the inner pipe is arranged outside the heat dissipation outer pipe to form the water outlet pipe.

Example 2, example 2 is a further preferred embodiment of example 1

The heat dissipation outer pipes are generally not too long due to the limitation of the use environment, and therefore the heat dissipation outer pipes are generally arranged in layers, in order to facilitate the installation of the inner pipes, in this embodiment, the heat dissipation outer pipes are arranged in a plurality of rows, referring to fig. 2, the heat dissipation outer pipes are arranged from top to bottom, the adjacent heat dissipation outer pipes are connected end to end, and can be connected through the bent pipes 9 during actual manufacturing, and the adjacent heat dissipation outer pipes are arranged in parallel, so that the plurality of connecting parts and the bent pipes can uniformly use the same structure; the inner pipe is arranged corresponding to the heat dissipation outer pipe, a connecting part 10 is arranged on the inner pipe, one end of the connecting part is connected with the inner pipe, and the other end of the connecting part extends out of the heat dissipation outer pipe; the connecting parts of the adjacent inner pipes are oppositely arranged and integrally connected, so that the connecting parts of the adjacent inner pipes are integrally connected to form a support for the outer pipe and the inner pipe.

Example 3, example 3 is a further preferred embodiment of example 1, and has substantially the same structure as example 1, except that in example 1, the adjacent heat dissipation outer pipes are parallel, i.e. the inclined directions are the same, while in this embodiment, the adjacent heat dissipation outer pipes are inclined in different directions, as shown in fig. 3, so that the small liquid drops can more easily flow to the bottom end along the inclined heat dissipation outer pipes under the action of gravity and are discharged through the liquid discharge pipe.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The simple oilfield associated gas drying and cooling device is characterized by comprising an outer heat dissipation pipe (1) and an inner pipe (2) which are obliquely arranged, wherein heat dissipation fins (3) are arranged on the outer heat dissipation pipe;

the inner pipe is arranged in the heat dissipation outer pipe, and a space is reserved between the inner pipe and the heat dissipation outer pipe;

an air outlet pipe (4) is arranged at the top end of the heat dissipation outer pipe, an air inlet pipe (8) and a liquid discharge pipe (7) are arranged at the bottom end of the heat dissipation outer pipe, and the air inlet pipe, the air outlet pipe and the liquid discharge pipe are all communicated with the interior of the heat dissipation outer pipe;

the top of inner tube is provided with inlet tube (5), and the bottom is provided with outlet pipe (6), the inlet tube with the outlet pipe all with the inside intercommunication of inner tube.

2. The simple oilfield associated gas drying and cooling device of claim 1, wherein the liquid discharge pipe is closer to the bottom end of the heat dissipation outer pipe than the air inlet pipe.

3. The simple oilfield associated gas drying and cooling device of claim 1, wherein the heat dissipation outer pipe and the inner pipe are arranged in parallel.

4. The simple oilfield associated gas drying and cooling device of claim 3, wherein the top end of the inner pipe extends out of the heat dissipation outer pipe to form the water inlet pipe, and the bottom end of the inner pipe extends out of the heat dissipation outer pipe to form the water outlet pipe.

5. The simple oilfield associated gas drying and cooling device according to any one of claims 1 to 4, wherein the number of the heat dissipation outer pipes is multiple, the multiple heat dissipation outer pipes are arranged from top to bottom, and adjacent heat dissipation outer pipes are connected end to end;

the inner pipe and the heat dissipation outer pipe are arranged correspondingly, a connecting part (10) is arranged on the inner pipe, one end of the connecting part is connected with the inner pipe, and the other end of the connecting part extends out of the heat dissipation outer pipe;

the connecting parts of the adjacent inner pipes are oppositely arranged and connected into a whole.

6. The simplified oilfield associated gas drying and cooling device of claim 5,

and the adjacent heat dissipation outer pipes are connected through a bent pipe (9).

7. The simplified oilfield associated gas drying and cooling device of claim 5, wherein adjacent heat dissipation outer pipes are arranged in parallel.

8. The simplified oilfield associated gas drying and cooling device of claim 5, wherein adjacent heat dissipation outer pipes are inclined in different directions.

9. The simple oilfield associated gas drying and cooling device according to claim 5, wherein the gas inlet pipe, the gas outlet pipe, the water inlet pipe, the water outlet pipe and the liquid discharge pipe are provided with valves.