CN211503770U

CN211503770U - Cold box for recovering associated gas of offshore oil production platform

Info

Publication number: CN211503770U
Application number: CN201922274995.1U
Authority: CN
Inventors: 龚晓科; 穆云飞; 成蔚帆; 刘正良; 张靖
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 a cold box for offshore oil production platform associated gas retrieves relates to associated gas recovery technical field, including air cooler, the fan is installed on air cooler's top, and one side of air cooler is connected with the air cooling intake pipe, the one end that one side of air cooler is located the air cooling intake pipe is connected with the air cooling outlet duct. The utility model discloses an air cooler who sets up, the air cooling intake pipe, a weighing sensor and a temperature sensor, the solenoid valve, the circulating pipe, the fan operation on air cooler top, the air that will take out advances around the condenser tube, cool off the condenser tube, thereby make the inside associated gas cooling of condenser tube, associated gas after the cooling flows in the air cooling outlet duct, temperature sensor responds to the inside temperature of air cooling outlet duct, if the temperature does not reach the predetermined value, make the associated gas enter into the air cooling intake pipe once more through the circulating pipe, carry out the secondary cooling, associated gas circulative cooling's problem has effectively been solved.

Description

Cold box for recovering associated gas of offshore oil production platform

Technical Field

The utility model relates to an associated gas retrieves technical field, specifically is a cold box that is used for offshore oil production platform associated gas to retrieve.

Background

Associated gas generally refers to natural gas symbiotic with petroleum, according to the oil production theory of organic hydrocarbon formation, organic matter evolution can generate liquid hydrocarbon and gaseous hydrocarbon, the gaseous hydrocarbon is dissolved in the liquid hydrocarbon or exists at the upper part of an oil-gas reservoir in a gas cap state, the two kinds of gaseous hydrocarbon are both called oil field associated gas or associated gas, and from the oil extraction working point of view, the associated gas refers to natural gas produced when the oil field or the oil reservoir is exploited, and the recovery of the associated gas comprises a plurality of steps of separation, condensation, purification and the like.

When the associated gas condenses, because there is the difference in its temperature, the cooling effect that leads to only carrying out a condensation is not good, and when the associated gas condenses, needs to cool down respectively to the temperature in every stage, makes the effect of cooling better, and cooling rate is faster, and the import and the export of associated gas, inner wall are stained with and attach a large amount of inflammable substance, and the easy ignition takes place to explode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of circulation cooling of the associated gas, cooling of the associated gas by stages and easy ignition and explosion of the gas inlet and the gas outlet, a cold box for recovering the associated gas of the offshore oil production platform is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a cold box for recovering associated gas of an offshore oil production platform comprises an air cooler, wherein a fan is installed at the top end of the air cooler, an air cooling air inlet pipe is connected to one side of the air cooler, an air cooling air outlet pipe is connected to one end, located at the air cooling air inlet pipe, of one side of the air cooler, a tubular heat exchanger is arranged below the air cooler, a cooling pipe is arranged inside the air cooler, a temperature sensor is installed on the outer wall of the air cooling air outlet pipe, a solenoid valve is installed on the air cooling air outlet pipe, a circulating pipe is connected to one end of the air cooling air outlet pipe, a connecting pipe is connected to the bottom end of the air cooling air outlet pipe, a control panel is arranged at one end of the tubular heat exchanger, a heat exchange air inlet pipe is connected to one end, located at the heat exchange air inlet, the air cooler is installed to inside one side of tubular heat exchanger, and one side that the air cooler was kept away from to tubular heat exchanger's inside is connected with the apron, one side that air cooler was kept away from to the air cooling intake pipe is connected with sealed lid.

Preferably, a filter screen is arranged at the top end of the fan, and the fan penetrates into the air cooler.

Preferably, all be provided with the solenoid valve on circulating pipe, the air cooling outlet duct, the connecting pipe, temperature sensor passes through PLC controller electric connection with the solenoid valve on the connecting pipe.

Preferably, the cover plate is rotatably connected with the tubular heat exchanger through a hinge, and the heat exchange air inlet pipe and the heat exchange air outlet pipe penetrate through the tubular heat exchanger.

Preferably, the air cooler is fixedly connected with the fan through a support column, and the connecting rope is in adhesive connection with the heat exchange air outlet pipe through glue.

Preferably, the top of sealed lid is provided with rotates the box, the internal connection who rotates the box has the connecting block, the top of connecting block is connected with the connection rope, and the top of rotating the box be provided with connect rope assorted hole groove.

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

1. the utility model discloses an air cooler who sets up, the air cooling intake pipe, a weighing sensor and a temperature sensor, the solenoid valve, the circulating pipe, the fan operation on air cooler top, the air that will take out advances around the condenser tube, cool off the condenser tube, thereby make the inside associated gas cooling of condenser tube, associated gas after the cooling flows in the air cooling outlet duct, temperature sensor responds to the inside temperature of air cooling outlet duct, if the temperature does not reach the predetermined value, make the associated gas enter into the air cooling intake pipe once more through the circulating pipe, carry out the secondary cooling, associated gas circulative cooling's problem has effectively been solved.

2. The utility model discloses a tubular heat exchanger that sets up, the air-cooler, the apron, the connecting pipe, associated gas passes through during the connecting pipe enters into tubular heat exchanger's heat exchange tube, then, control panel control air-cooler operation, carry out the cooling of blowing to the heat exchange tube, make tubular heat exchanger's heat transfer effect better, open the apron, make the hot-blast outflow from tubular heat exchanger one side after the cooling treatment, and the good associated gas of cooling flows out from the heat transfer outlet duct, and is collected, has effectively solved the problem of cooling down to associated gas stage by stage.

3. The utility model discloses a sealed lid, rotation box, connecting block, the connection rope that sets up will connect the sealed lid of rope one end and cover on air cooling intake pipe and heat transfer outlet duct to make sealed lid twist with the connecting block and move at air cooling intake pipe and 1 heat transfer outlet duct through rotating the box, seal and completely cut off, prevent that intraductal associated gas from remaining the ignition explosion, effectively solved the problem of the easy ignition explosion of gas outlet.

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 schematic view of the sealing cover of the present invention.

In the figure: 1. an air cooler; 2. a fan; 3. a filter screen; 4. air cooling an air inlet pipe; 5. air-cooling the air outlet pipe; 6. a temperature sensor; 7. a circulation pipe; 8. a connecting pipe; 9. a heat exchange air inlet pipe; 10. an electromagnetic valve; 11. a sealing cover; 12. a tubular heat exchanger; 13. a control panel; 14. a heat exchange air outlet pipe; 15. a heat exchange pipe; 16. an air cooler; 17. a cover plate; 18. connecting ropes; 19. rotating the cartridge; 20. connecting blocks; 21. and (7) cooling 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 electromagnetic valve (ZQDF), the air cooler (AH 2431T-CA), the fan (CX-125), the tubular heat exchanger (LQ-5689) and the control panel (JR) mentioned in the utility model can be obtained by market or private ordering.

Example 1

Referring to fig. 1-3, the cold box for recovering associated gas of an offshore oil production platform comprises an air cooler 1, a fan 2 is installed at the top end of the air cooler 1, an air-cooled air inlet pipe 4 is connected to one side of the air cooler 1, an air-cooled air outlet pipe 5 is connected to one end, located at the air-cooled air inlet pipe 4, of one side of the air cooler 1, a tubular heat exchanger 12 is arranged below the air cooler 1, a cooling pipe 21 is arranged inside the air cooler 1, a temperature sensor 6 is installed on the outer wall of the air-cooled air outlet pipe 5, an electromagnetic valve 10 is installed on the air-cooled air outlet pipe 5, a circulating pipe 7 is connected to one end of the air-cooled air outlet pipe 5, a connecting pipe 8 is connected to the bottom end of the air-cooled air outlet pipe 5, a control panel 13 is arranged at one end of the tubular heat exchanger 12, a heat, and the inside of tubular heat exchanger 12 is provided with heat exchange tube 15, and the air-cooler 16 is installed to one side inside tubular heat exchanger 12, and the inside one side of keeping away from air-cooler 16 of tubular heat exchanger 12 is connected with apron 17, and the air cooling intake pipe 4 is kept away from one side of air cooler 1 and is connected with sealed lid 11.

Example 2

Please refer to fig. 1, a filter screen 3 is disposed on a top end of a fan 2, the air pumped by the filter screen is filtered, the fan 2 penetrates through the air cooler 1 to feed the pumped air to the periphery of a cooling pipe 21, a solenoid valve 10 is disposed on each of a circulating pipe 7, an air cooling air outlet pipe 5 and a connecting pipe 8, the solenoid valve 10 controls the fluid in the circulating pipe 7, the air cooling air outlet pipe 5 and the connecting pipe 8, a temperature sensor 6 is electrically connected with the solenoid valve 10 on the connecting pipe 8 through a PLC controller, the temperature sensor 6 senses the temperature in the air cooling air outlet pipe 5, converts the sensed temperature signal into an electric signal and transmits the electric signal to the PLC controller, and the PLC controller controls the solenoid valve 10 on the connecting pipe 8 to operate.

Please refer to fig. 2, the cover plate 17 is rotatably connected to the tubular heat exchanger 12 through a hinge, so that the cover plate 17 can be conveniently opened, the heat exchange air inlet pipe 9 and the heat exchange air outlet pipe 14 penetrate into the tubular heat exchanger 12 and are conveniently connected to the heat exchange pipe 15, the air cooler 1 and the fan 2 are fixedly connected through a support column, so that the air cooler 1 and the fan 2 are integrated and are convenient to move, the connecting rope 18 is connected to the heat exchange air outlet pipe 14 through glue in a viscous manner, and the connecting rope 18 drives the sealing cover 11 to be fixed outside the heat exchange air outlet pipe 14.

Please refer to fig. 3, the top end of the sealing cover 11 is provided with a rotating box 19, the inside of the rotating box 19 is connected with a connecting block 20, the top end of the connecting block 20 is connected with a connecting rope 18, the top end of the rotating box 19 is provided with a hole slot matched with the connecting rope 18, and the connecting rope 18 can move in the rotating box 19 through the connecting block 20 in the rotating box 19.

The working principle is as follows: when the utility model is used, associated gas enters the cooling pipe 21 in the air cooler 1 through the air cooling intake pipe 4, simultaneously, the fan 2 on the top end of the air cooler 1 runs to extract air, the extracted air is sent to the periphery of the cooling pipe 21 to cool the cooling pipe 21, thereby cooling the associated gas in the cooling pipe 21, the cooled associated gas flows into the air cooling outlet pipe 5, the temperature sensor 6 senses the temperature in the air cooling outlet pipe 5, the sensed temperature signal is converted into an electric signal and transmitted to the PLC controller, the PLC controller controls the electromagnetic valve 10 on the connecting pipe 8 to run, if the temperature does not reach the preset value, the electromagnetic valve 10 on the control circulating pipe 7 is opened through the control panel 13, the associated gas enters the air cooling intake pipe 4 again through the circulating pipe 7 to carry out secondary cooling, until the temperature after cooling reaches the preset value, when the preset value is reached, the PLC controller controls the electromagnetic valve 10 on the connecting pipe 8 to be opened, so that the associated gas enters the heat exchange pipe 15 of the tubular heat exchanger 12 through the connecting pipe 8, at the moment, the control panel 13 controls the air cooler 16 to operate, the heat exchange pipe 15 is cooled by blowing, so that the heat exchange effect of the tubular heat exchanger 12 is better, the cover plate 17 is opened, hot air after cooling treatment flows out from one side of the tubular heat exchanger 12, cooled associated gas flows out from the heat exchange air outlet pipe 14 and is collected, when the air cooler 1 and the tubular heat exchanger 12 are not used, the sealing cover 11 at one end of the connecting rope 18 covers the air cooling air inlet pipe 4 and the heat exchange air outlet pipe 14, the sealing cover 11 can be screwed on the air cooling air inlet pipe 4 and the heat exchange air outlet pipe 14 through the rotating box 19 and the connecting block 20 to be sealed and isolated, and.

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. A cold box for offshore production platform associated gas is retrieved, including air cooler (1), its characterized in that: the air cooler is characterized in that a fan (2) is installed at the top end of the air cooler (1), one side of the air cooler (1) is connected with an air cooling air inlet pipe (4), one end, located at the air cooling air inlet pipe (4), of one side of the air cooler (1) is connected with an air cooling air outlet pipe (5), a tubular heat exchanger (12) is arranged below the air cooler (1), a cooling pipe (21) is arranged inside the air cooler (1), a temperature sensor (6) is installed on the outer wall of the air cooling air outlet pipe (5), a solenoid valve (10) is installed on the air cooling air outlet pipe (5), one end of the air cooling air outlet pipe (5) is connected with a circulating pipe (7), the bottom end of the air cooling air outlet pipe (5) is connected with a connecting pipe (8), one end of the tubular heat exchanger (12) is provided with a control panel (13, one end of one side of the tubular heat exchanger (12) located in the heat exchange air inlet pipe (9) is connected with a heat exchange air outlet pipe (14), the inside of the tubular heat exchanger (12) is provided with a heat exchange pipe (15), one side of the inside of the tubular heat exchanger (12) is provided with an air cooler (16), one side of the inside of the tubular heat exchanger (12) far away from the air cooler (16) is connected with a cover plate (17), and one side of the air cooling air inlet pipe (4) far away from the air cooler (1) is connected with a sealing cover (11).

2. The cold box for offshore production platform associated gas recovery of claim 1, wherein: the top end of the fan (2) is provided with a filter screen (3), and the fan (2) penetrates into the air cooler (1).

3. The cold box for offshore production platform associated gas recovery of claim 2, wherein: all be provided with solenoid valve (10) on circulating pipe (7), air cooling outlet duct (5), connecting pipe (8), temperature sensor (6) pass through PLC controller electric connection with solenoid valve (10) on connecting pipe (8).

4. The cold box for offshore production platform associated gas recovery of claim 3, wherein: the cover plate (17) is rotatably connected with the tubular heat exchanger (12) through a hinge, and the heat exchange air inlet pipe (9) and the heat exchange air outlet pipe (14) penetrate through the tubular heat exchanger (12).

5. The cold box for offshore production platform associated gas recovery according to claim 3 or 4, wherein: the air cooler (1) is fixedly connected with the fan (2) through a support column, and the connecting rope (18) is in adhesive connection with the heat exchange air outlet pipe (14) through glue.

6. The cold box for offshore production platform associated gas recovery of claim 1, wherein: the top of sealed lid (11) is provided with rotates box (19), the internal connection who rotates box (19) has connecting block (20), the top of connecting block (20) is connected with and connects rope (18), and the top of rotating box (19) be provided with connect rope (18) assorted hole groove.