CN216864102U

CN216864102U - Energy-saving natural gas dehydration device

Info

Publication number: CN216864102U
Application number: CN202220859877.6U
Authority: CN
Inventors: 陈沿吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-07-01
Anticipated expiration: 2032-04-14

Abstract

The utility model provides an energy-saving natural gas dehydration device which comprises a dehydration tank, wherein the bottom of the dehydration tank is in conduction connection with a cooling water inlet, the top of the dehydration tank is in conduction connection with a cooling water outlet, and the cooling water inlet and the cooling water outlet are respectively in conduction connection with an external circulating cooling system; a shunt pipe is arranged on one side of the dehydration tank, and a natural gas inlet is connected on the shunt pipe in a conduction manner; the flow dividing pipes are connected with a plurality of U-shaped pipes in a conduction mode through pipelines, the free ends of the U-shaped pipes are connected with coil pipes which are arranged in the dehydration tank in a conduction mode along the vertical direction, the top of the inside of the dehydration tank is provided with a collecting pipe which is communicated with the coil pipes, and the top of the collecting pipe is connected with a natural gas outlet in a conduction mode; the natural gas condensation dehydration device utilizes the difference between the condensation temperature of the natural gas and the condensation temperature of the moisture to condense and dehydrate the natural gas, and the cooling water can be recycled, so that the energy consumption is lower, the energy is saved, the use cost is low, and the use is facilitated.

Description

Energy-saving natural gas dehydration device

Technical Field

The utility model relates to a dehydration device, in particular to an energy-saving natural gas dehydration device.

Background

In the field of oil extraction in oil fields, produced natural gas contains a lot of water, and if the water is not treated, the efficiency of heating furnaces on transfer stations and combination stations in the oil fields is influenced, and safety hazards are brought, so that the removal of the water contained in wet natural gas is the key for ensuring safe production.

The existing natural gas dehydration device has large energy consumption and insufficient energy conservation, so that the use cost is higher and the use is not facilitated.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide an energy-saving natural gas dehydration device to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

an energy-saving natural gas dehydration device comprises a dehydration tank, wherein the bottom of the dehydration tank is in conduction connection with a cooling water inlet, the top of the dehydration tank is in conduction connection with a cooling water outlet, and the cooling water inlet and the cooling water outlet are respectively in conduction connection with an external circulating cooling system;

a shunt pipe is arranged on one side of the dehydration tank, and a natural gas inlet is connected on the shunt pipe in a conduction manner; the flow dividing pipe is connected with a plurality of U-shaped pipes in a conduction mode through pipelines, the free end of each U-shaped pipe is connected with a coil pipe which is arranged in the dewatering tank in a conduction mode along the vertical direction, a collecting pipe which is communicated with each coil pipe is arranged at the inner top of the dewatering tank, and the top of each collecting pipe is connected with a natural gas outlet in a conduction mode;

the inner bottom of the dewatering tank is provided with a condensed water collecting pipe, the bottom of each U-shaped pipe is in conduction connection with the condensed water collecting pipe through a pipeline, and the outer bottom of the dewatering tank is provided with a condensed water collecting mechanism in conduction connection with the condensed water collecting pipe.

As a further scheme of the utility model: and the outer surface of the dehydration tank is provided with a heat insulation layer.

As a further scheme of the utility model: and a plurality of fins are arranged on the coil pipe.

As a further scheme of the utility model: the device is characterized in that a plurality of auxiliary supporting plates are arranged in the dehydration tank, the coil pipe is fixedly connected with each auxiliary supporting plate, and each auxiliary supporting plate is matched with the dehydration tank to form a wave-shaped cooling water channel.

As a further scheme of the utility model: the condensed water collecting mechanism comprises a drain pipe which is connected to the bottom of the condensed water collecting pipe in a conduction mode, the drain pipe extends out of the dewatering tank, the free end of the drain pipe is connected with the collecting box in a conduction mode, and a valve is arranged on the drain pipe.

Compared with the prior art, the utility model has the beneficial effects that:

after the structure is adopted, through the mutual matching among the cooling water inlet, the cooling water outlet, the flow dividing pipe, the U-shaped pipe, the coil pipe, the collecting pipe and the condensed water collecting pipe, when the natural gas condensing device is used, circulating cooling water is injected into the dehydration tank through the matching of the cooling water inlet and the cooling water outlet, then the natural gas enters the flow dividing pipe to be divided, and then enters each U-shaped pipe to be discharged through the coil pipe and the collecting pipe in sequence, the coil pipe can greatly prolong the passing time of the natural gas, so that the condensing effect is ensured, and the moisture in the natural gas flows into the condensed water collecting pipe through the U-shaped pipe after meeting condensation. The natural gas condensation dehydration device utilizes the difference between the condensation temperature of the natural gas and the condensation temperature of the moisture to condense and dehydrate the natural gas, and the cooling water can be recycled, so that the energy consumption is lower, the energy is saved, the use cost is low, and the use is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of an energy-saving natural gas dehydration device.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a condensed water collecting pipe in an energy-saving natural gas dehydration device.

In the figure: 1. a dehydration tank; 2. a cooling water inlet; 3. a cooling water outlet; 4. a shunt tube; 5. a natural gas inlet; 6. a U-shaped tube; 7. a coil pipe; 8. a collector pipe; 9. a natural gas outlet; 10. a condensed water collecting pipe; 11. a condensed water collecting mechanism; 1101. a drain pipe; 1102. a collection box; 1103. a valve; 12. a heat-insulating layer; 13. a fin; 14. and (4) an auxiliary supporting plate.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an energy-saving natural gas dehydration device comprises a dehydration tank 1, wherein the bottom of the dehydration tank 1 is in conduction connection with a cooling water inlet 2, the top of the dehydration tank 1 is in conduction connection with a cooling water outlet 3, the cooling water inlet 2 and the cooling water outlet 3 are respectively in conduction connection with an external circulating cooling system, and circulating cooling water can be injected into the dehydration tank 1; a shunt pipe 4 is arranged on one side of the dehydration tank 1, and a natural gas inlet 5 is connected on the shunt pipe 4 in a conduction manner; the distribution pipe 4 is connected with a plurality of U-shaped pipes 6 in a conduction mode through pipelines, the free end of each U-shaped pipe 6 is connected with a coil pipe 7 which is arranged in the dehydration tank 1 in a conduction mode along the vertical direction, the inner top of the dehydration tank 1 is provided with a collection pipe 8 which is connected with each coil pipe 7 in a conduction mode, and the top of each collection pipe 8 is connected with a natural gas outlet 9 in a conduction mode; a condensed water collecting pipe 10 is arranged at the inner bottom of the dewatering tank 1, the bottom of each U-shaped pipe 6 is communicated and connected with the condensed water collecting pipe 10 through a pipeline, and a condensed water collecting mechanism 11 communicated and connected with the condensed water collecting pipe 10 is arranged at the outer bottom of the dewatering tank 1. When using, the cooperation through cooling water inlet 2 and cooling water outlet 3 injects recirculated cooling water into dehydration jar 1, then the natural gas shunts in getting into shunt tubes 4 to in getting into each U-shaped pipe 6, discharge via coil pipe 7 and collecting pipe 8 according to the preface again, coil pipe 7 can prolong the length of time that the natural gas passes through greatly, thereby guarantee the condensation effect, moisture content in the natural gas meets the cold condensation after in 6 inflow comdenstion water collecting pipes 10 of U-shaped pipe.

Furthermore, the outer surface of the dewatering tank 1 is provided with the heat preservation layer 12, so that cooling water is prevented from absorbing external heat, the cost is saved, and the using effect is better.

Furthermore, the coil pipe 7 is provided with a plurality of fins 13, so that the heat exchange capacity can be increased, the moisture condensation effect is improved, and the use is convenient.

Furthermore, a plurality of auxiliary supporting plates 14 are arranged in the dehydration tank 1 and can be used for supporting the coil pipe 7 in an auxiliary mode, the coil pipe 7 is fixedly connected with the auxiliary supporting plates 14, and the auxiliary supporting plates 14 are matched with the dehydration tank 1 to form a wavy cooling water channel. Cooling water enters the dewatering tank 1 through the cooling water inlet 2 and flows to the cooling water outlet 3 through the wavy cooling water channel, and moisture in the coil pipe 7 can be well condensed.

Specifically, the condensed water collecting mechanism 11 includes a drain pipe 1101 connected to the bottom of the condensed water collecting pipe 10 in a conducting manner, the drain pipe 1101 extends to the outside of the dewatering tank 1, the free end of the drain pipe 1101 is connected to a collecting tank 1102 in a conducting manner, and a valve 1103 is arranged on the drain pipe 1101, so that the condensed water in the condensed water collecting pipe 10 can be discharged into the collecting tank 1102.

In this embodiment, it should be noted that the natural gas changes from a gaseous state to a liquid state when cooled to about-162 ℃ under normal pressure. When water is cooled to below about 100 ℃ at normal pressure, the gas changes from a gaseous state to a liquid state.

The working principle of the utility model is as follows: during the use, through the cooperation of cooling water import 2 and cooling water export 3 to pouring into recirculated cooling water into dehydration jar 1, then the natural gas shunts in getting into shunt tubes 4 through natural gas import 5, then gets into each U-shaped pipe 6 in, finally discharges via coil pipe 7, collecting pipe 8 and natural gas export 9 in proper order.

In the process, water in the natural gas is condensed into water drops when meeting with the condensation, and the condensed water flows to the U-shaped pipe 6 and enters the condensed water collecting pipe 10 and is finally collected by the condensed water collecting mechanism 11.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. An energy-saving natural gas dehydration device comprises a dehydration tank (1), and is characterized in that the bottom of the dehydration tank (1) is in conduction connection with a cooling water inlet (2), the top of the dehydration tank (1) is in conduction connection with a cooling water outlet (3), and the cooling water inlet (2) and the cooling water outlet (3) are respectively in conduction connection with an external circulating cooling system;

a shunt pipe (4) is arranged on one side of the dehydration tank (1), and a natural gas inlet (5) is connected on the shunt pipe (4) in a conduction manner; the distribution pipe (4) is connected with a plurality of U-shaped pipes (6) in a conduction mode through a pipeline, the free end of each U-shaped pipe (6) is connected with a coil pipe (7) which is arranged in the dehydration tank (1) in a conduction mode along the vertical direction, a collecting pipe (8) which is communicated with each coil pipe (7) is arranged at the inner top of the dehydration tank (1), and a natural gas outlet (9) is connected to the top of each collecting pipe (8) in a conduction mode;

the inner bottom of the dewatering tank (1) is provided with a condensed water collecting pipe (10), the bottom of each U-shaped pipe (6) is communicated and connected with the condensed water collecting pipe (10) through a pipeline, and the outer bottom of the dewatering tank (1) is provided with a condensed water collecting mechanism (11) communicated and connected with the condensed water collecting pipe (10).

2. An energy-saving natural gas dehydration device according to claim 1 characterized in that the outer surface of said dehydration tank (1) is provided with an insulation layer (12).

3. An energy-saving natural gas dehydration device according to claim 1 characterized in that said coil pipe (7) is provided with a plurality of fins (13).

4. The energy-saving natural gas dehydration device according to claim 1, characterized in that a plurality of auxiliary support plates (14) are arranged in the dehydration tank (1), the coil pipe (7) is fixedly connected with each auxiliary support plate (14), and each auxiliary support plate (14) is matched with the dehydration tank (1) to form a wave-shaped cooling water channel.

5. The energy-saving natural gas dehydration device according to claim 1, characterized in that the condensed water collection mechanism (11) comprises a drain pipe (1101) which is connected in conduction with the bottom of the condensed water collection pipe (10), the drain pipe (1101) extends out of the dehydration tank (1), the free end is connected in conduction with a collection tank (1102), and a valve (1103) is arranged on the drain pipe (1101).