CN211497534U

CN211497534U - Offshore oil production platform associated gas recovery unit

Info

Publication number: CN211497534U
Application number: CN201922275423.5U
Authority: CN
Inventors: 龚晓科; 穆云飞; 梁延辽; 幸涛; 杨敏; 闫浩
Original assignee: Ningxia Kai Tian Gas Development Co ltd
Current assignee: Ningxia Kai Tian Gas Development Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-15
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses an offshore oil production platform associated gas recovery unit relates to associated gas recovery unit field, including purifying barrel, one side of purifying barrel is provided with the intake pipe, and the below that one side of purifying barrel is located the intake pipe is provided with the vacuum pump, one side that purifying barrel kept away from the vacuum pump is connected with first outlet duct, and purifying barrel's inside is provided with the heating pipe, install the relief pressure valve in the intake pipe, and the bottom of intake pipe is connected with the drain pipe, one side that purifying barrel was kept away from to first outlet duct is connected with the lime water tank. The utility model discloses an intake pipe, drain pipe, relief pressure valve that set up, natural gas and oil separation back get into in the intake pipe, after to the certain degree through the relief pressure valve decompression in the intake pipe, the inside a small amount of oil and the natural gas separation that contains of natural gas to flow through the drain pipe, collected, effectively solved the problem that has a small amount of oil in the natural gas.

Description

Offshore oil production platform associated gas recovery unit

Technical Field

The utility model relates to an associated gas recovery unit field specifically is offshore oil production platform associated gas recovery unit.

Background

The associated gas is also called as oil field gas, generally refers to natural gas symbiotic with petroleum, the main components of the associated gas are low-molecular alkanes such as methane, ethane and the like, and a certain amount of propane, butane, pentane and the like, for the oil field associated gas with dispersed well site arrangement and wide distribution area, the recycling difficulty is very high due to large pipeline investment and difficult laying, and a non-pipe gas transmission and supply scheme is developed, so that the associated gas production improvement, energy conservation and emission reduction of the oil and gas field are undoubtedly greatly facilitated.

After the current natural gas and petroleum are separated, a small amount of liquid petroleum still exists in the natural gas, which affects the purity and the post-treatment of the natural gas, and the natural gas contains hydrogen sulfide which is easy to cause serious damage to human bodies if not removed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that a small amount of oil exists in natural gas and the natural gas contains hydrogen sulfide, an associated gas recovery device of an offshore oil production platform is provided.

In order to achieve the above object, the utility model provides a following technical scheme: offshore oil production platform associated gas recovery unit, including purifying barrel, one side of purifying barrel is provided with the intake pipe, and the below that one side of purifying barrel is located the intake pipe is provided with the vacuum pump, one side that purifying barrel kept away from the vacuum pump is connected with first outlet duct, and the inside of purifying barrel is provided with the heating pipe, install the relief pressure valve in the intake pipe, and the bottom of intake pipe is connected with the drain pipe, one side that purifying barrel was kept away from to first outlet duct is connected with the lime water tank, the top of lime water tank is provided with the inlet pipe, and one side that first outlet duct was kept away from to the lime water tank is connected with the second outlet duct, be provided with the solenoid valve on the second outlet duct, and one side of keeping away from the lime water tank of second outlet duct is connected with the gas holder, install air compressor.

Preferably, one side of the purifying cylinder, which is far away from the air inlet pipe, is provided with a medicine feeding port, a sealing cover is arranged on the medicine feeding port, and the outer side of the heating pipe is provided with a protective shell.

Preferably, the first air outlet pipe, the air storage tank inlet pipe and the second air outlet pipe are respectively provided with an electromagnetic valve, and the feeding pipe penetrates into the lime water tank.

Preferably, the vacuum pump is connected with the purification cylinder through a connecting pipe, and one end of the purification cylinder is provided with an impurity outlet.

Preferably, the outer wall of the second air outlet pipe is sleeved with a threaded sleeve, and one side of the air storage tank is connected with an air storage tank inlet pipe.

Preferably, the inlet pipe of the air storage tank is provided with threads, and the second air outlet pipe and the inlet pipe of the air storage tank are movably connected with the threads through a threaded sleeve.

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

1. the utility model discloses an intake pipe, drain pipe, relief pressure valve that set up, natural gas and oil separation back get into in the intake pipe, after to the certain degree through the relief pressure valve decompression in the intake pipe, the inside a small amount of oil and the natural gas separation that contains of natural gas to flow through the drain pipe, collected, effectively solved the problem that has a small amount of oil in the natural gas.

2. The utility model discloses a purification section of thick bamboo that sets up, the heating pipe, the vacuum pump, lime water tank, throw alkaline solvent from the offend into purification section of thick bamboo 1, acidic components such as hydrogen sulfide in alkaline solvent and the natural gas produce the reaction, generate certain compound, the heating pipe heats simultaneously, vacuum air pump passes through the connecting pipe and carries out decompression treatment to purification section of thick bamboo inside, make the inside state that keeps high temperature low pressure of purification section of thick bamboo, high temperature low pressure state is to when certain degree, compound decomposition release acid gas, at this moment, open the solenoid valve on the first outlet duct, make natural gas and acid gas enter into lime water tank through first outlet duct, acid gas and lime water produce the reaction, absorbed, the problem that contains hydrogen sulfide in the natural gas has effectively been solved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a bolt connection diagram of the present invention.

In the figure: 1. a purification cartridge; 2. an air inlet pipe; 3. a pressure reducing valve; 4. a liquid outlet pipe; 5. a drug feeding port; 6. a vacuum pump; 7. a first air outlet pipe; 8. a lime water tank; 9. a feed pipe; 10. an inlet pipe of the gas storage tank; 11. an electromagnetic valve; 12. a second air outlet pipe; 13. an air compressor; 14. an air pump; 15. a threaded sleeve; 16. a gas storage tank; 17. heating the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses in mention all can be in market or the private ordering of relief pressure valve (QR 1), vacuum pump (KRX), solenoid valve (ZQDF), air compressor (LB 30100), air pump (YB-307) and obtain.

Example 1

Referring to fig. 1-3, the associated gas recovery device of the offshore oil production platform comprises a purification cylinder 1, an air inlet pipe 2 is arranged on one side of the purification cylinder 1, a vacuum pump 6 is arranged on one side of the purification cylinder 1 below the air inlet pipe 2, a first air outlet pipe 7 is connected to one side of the purification cylinder 1 away from the vacuum pump 6, a heating pipe 17 is arranged inside the purification cylinder 1, a pressure reducing valve 3 is arranged on the air inlet pipe 2, a liquid outlet pipe 4 is connected to the bottom end of the air inlet pipe 2, a lime water tank 8 is connected to one side of the first air outlet pipe 7 away from the purification cylinder 1, a feed pipe 9 is arranged at the top end of the lime water tank 8, a second air outlet pipe 12 is connected to one side of the lime water tank 8 away from the first air outlet pipe 7, an electromagnetic valve 11 is arranged on the second air outlet pipe 12, an air storage tank 16 is connected, an air pump 14 is provided at one side of the air compressor 13.

Example 2

Please refer to fig. 1, a drug feeding port 5 is disposed on one side of the purifying cylinder 1 away from the air inlet pipe 2, a sealing cover is disposed on the drug feeding port 5, the drug feeding port 5 is convenient for feeding drugs into the purifying cylinder 1, and a protecting shell is disposed outside the heating pipe 17 and protects the heating pipe 17.

Please refer to fig. 2, the first outlet pipe 7, the gas tank inlet pipe 10, and the second outlet pipe 12 are all provided with an electromagnetic valve 11, the electromagnetic valve 11 can control the flow of the liquid or gas in the first outlet pipe 7, the gas tank inlet pipe 10, and the second outlet pipe 12, the feed pipe 9 penetrates into the lime water tank 8 to facilitate the addition of lime water, the vacuum pump 6 is connected with the purification cylinder 1 through a connecting pipe to reduce the gas pressure inside the purification cylinder 1, one end of the purification cylinder 1 is provided with an impurity outlet, after the natural gas and the acid gas flow out, the remaining waste liquid flows out from the impurity outlet and is collected.

Please refer to fig. 3, a threaded sleeve 15 is sleeved on an outer wall of the second air outlet pipe 12, an air tank inlet pipe 10 is connected to one side of the air tank 16, threads are arranged on the air tank inlet pipe 10, the second air outlet pipe 12 and the air tank inlet pipe 10 are movably connected with the threads through the threaded sleeve 15, and the second air outlet pipe 12 is connected with the air tank inlet pipe 10 through the threaded sleeve 15.

The working principle is as follows: when the utility model is used, after the natural gas and the oil are separated, the natural gas enters the air inlet pipe 2, after the pressure is reduced by the pressure reducing valve 3 on the air inlet pipe 2 to a certain degree, a small amount of oil and the natural gas contained in the natural gas are separated and flow out through the liquid outlet pipe 4 to be collected, the separated natural gas enters the purifying cylinder 1, the alkaline solvent is put into the purifying cylinder 1 from the chemical feeding port 5, the alkaline solvent reacts with acidic components such as hydrogen sulfide in the natural gas to generate a certain compound, meanwhile, the heating pipe 17 is heated, the vacuum pump 6 carries out pressure reduction treatment on the inside of the purifying cylinder 1 through the connecting pipe to ensure that the inside of the purifying cylinder 1 keeps a high-temperature low-pressure state, when the high-temperature low-pressure state reaches a certain degree, the compound decomposes and releases acidic gas, at the moment, the electromagnetic valve 11 on the first air outlet pipe 7 is opened, the natural gas, acid gas and lime water produce the reaction, are absorbed, open solenoid valve 11 on second outlet duct 12, make during pure natural gas gets into second outlet duct 12, and through air compressor 13's compression, continue to flow, open gas holder import pipe 10, air pump 14 operation, carry the natural gas in the gas holder 16 through gas holder import pipe 10, after gas holder 16 fills up, close solenoid valve 11 on the gas holder import pipe 10, and twist threaded sleeve 15 and separate gas holder import pipe 10 in second outlet duct 12, then can change gas holder 16 as far as possible.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Offshore oil production platform associated gas recovery unit, including purifying a section of thick bamboo (1), its characterized in that: one side of the purifying cylinder (1) is provided with an air inlet pipe (2), one side of the purifying cylinder (1) is positioned below the air inlet pipe (2) and is provided with a vacuum pump (6), one side of the purifying cylinder (1) far away from the vacuum pump (6) is connected with a first air outlet pipe (7), the inside of the purifying cylinder (1) is provided with a heating pipe (17), the air inlet pipe (2) is provided with a pressure reducing valve (3), the bottom end of the air inlet pipe (2) is connected with a liquid outlet pipe (4), one side of the first air outlet pipe (7) far away from the purifying cylinder (1) is connected with a lime water tank (8), the top end of the lime water tank (8) is provided with an inlet pipe (9), one side of the lime water tank (8) far away from the first air outlet pipe (7) is connected with a second air outlet pipe (12), the second air outlet pipe (12) is provided with an electromagnetic valve (11), and one side of, an air compressor (13) is installed on the second air outlet pipe (12), and an air pump (14) is arranged on one side of the air compressor (13).

2. The offshore production platform associated gas recovery device of claim 1, wherein: one side of the purifying cylinder (1) far away from the air inlet pipe (2) is provided with a medicine feeding opening (5), a sealing cover is arranged on the medicine feeding opening (5), and the outer side of the heating pipe (17) is provided with a protective shell.

3. The offshore production platform associated gas recovery device of claim 2, wherein: all be provided with solenoid valve (11) on first outlet duct (7), gas holder import pipe (10), second outlet duct (12), inlet pipe (9) run through to the inside of lime water tank (8).

4. The offshore production platform associated gas recovery device of claim 3, wherein: the vacuum pump (6) is connected with the purifying cylinder (1) through a connecting pipe, and one end of the purifying cylinder (1) is provided with an impurity outlet.

5. The offshore production platform associated gas recovery device of claim 3 or 4, wherein: the outer wall of the second air outlet pipe (12) is sleeved with a threaded sleeve (15), and one side of the air storage tank (16) is connected with an air storage tank inlet pipe (10).

6. The offshore production platform associated gas recovery device of claim 5, wherein: the air storage tank inlet pipe (10) is provided with threads, and the second air outlet pipe (12) and the air storage tank inlet pipe (10) are movably connected with the threads through a threaded sleeve (15).