Oil and gas recovery condensate cryogenic transport system

Abstract

This utility model discloses a cryogenic conveying system for oil and gas recovery condensate, including a support, a safety door, and an auxiliary door. A heat exchange tube is installed on the upper surface of the support, and several corrugated compensators are installed at the lower end of the heat exchange tube. A transfer pipe connects the corresponding corrugated compensators. The safety door has two panels and is rotatably connected to the support. A threaded locking device is installed on the safety door. The auxiliary door has two panels and is slidably connected to the two safety doors. Rollers are installed at the lower end of the auxiliary door. The corrugated compensators are installed at the lower end of the heat exchange tube. When the heat exchange tube handles liquefied petroleum gas, it will undergo thermal expansion and contraction deformation due to temperature changes. The corrugated compensators can absorb axial, lateral, and angular displacements, preventing pipe cracking and deformation caused by stress concentration. When the safety door is closed, it can prevent external objects from colliding with the transfer pipe, corrugated compensators, and valves, making it safer to use.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas transportation technology, specifically to a cryogenic transportation system for oil and gas recovery condensate. Background Technology

[0002] Ambient air vaporizers can process media such as liquefied petroleum gas (LPG) and liquid carbon dioxide (LCO2). Ambient air vaporizers utilize natural air convection for heat exchange, requiring no additional energy consumption, and meet the energy-saving requirements of oil and gas recovery processes.

[0003] In related technologies, a search revealed that the novel vaporizer (publication number CN111238262A) uses a design where the spacing between multiple heat exchange tubes on both sides of the support frame is greater than the spacing between heat exchange tubes in the middle of the support frame. This allows for a larger spacing between the heat exchange tubes in the liquid inlet section and a smaller spacing between the heat exchange tubes in the vaporization heating section. This makes it difficult for ice to form between the heat exchange tubes in the liquid inlet section, ensuring continuous airflow between the heat exchange tubes in the liquid inlet section and the vaporization section, thus guaranteeing the heat exchange efficiency of the heat exchange tubes.

[0004] However, during the use of the above-mentioned ambient air vaporizer, the internal pressure of the ambient air vaporizer will increase during vaporization. Pressure fluctuations may affect the stability of the vaporization process, resulting in reduced vaporization efficiency or insufficient vaporization volume. Excessive pressure may also cause damage or leakage to the ambient air vaporizer, thereby leading to safety accidents. Utility Model Content

[0005] The purpose of this invention is to provide a cryogenic transport system for oil and gas recovery condensate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature conveying system for oil and gas recovery condensate, including a support, a heat exchange tube installed on the upper surface of the support, a plurality of corrugated compensators installed at the lower end of the heat exchange tube, and a connecting pipe connected between the corresponding corrugated compensators. The corrugated compensators can improve the safety and service life of the heat exchange tube.

[0007] A safety door, wherein the safety door has two leaves and is rotatably connected to the support, and a threaded locking device is installed on the safety door;

[0008] The auxiliary door has two panels that are slidably connected to the two safety doors. The lower end of the auxiliary door is equipped with rollers. The safety doors and the auxiliary door can prevent non-staff members from entering under the support and can also play a certain role in preventing collisions.

[0009] Furthermore, the safety door surface is provided with an n-shaped plate, and the auxiliary door is inserted into the n-shaped plate to make the auxiliary door and the safety door slide vertically and horizontally, so that the auxiliary door can adapt to supports of different heights, making installation flexible and convenient, and providing more comprehensive protection for the corrugated compensator and valve.

[0010] Furthermore, the threaded locking device includes a threaded sleeve, a handle stud, and a collar. The threaded sleeve and collar are fixed to the two safety doors. Tightening the handle stud and inserting it into the collar can stably lock the two safety doors.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) A corrugated compensator is installed at the lower end of the heat exchange tube. When the heat exchange tube is used to process liquefied petroleum gas, the heat exchange tube will undergo thermal expansion and contraction deformation due to temperature changes. The corrugated compensator can absorb axial, lateral and angular displacements, avoid pipeline cracking and deformation caused by stress concentration, and improve the safety and service life of the ambient temperature vaporizer.

[0013] (2) When the safety door is closed, the safety door moves the auxiliary door through the collar. Tightening the handle stud and inserting it into the collar can keep both safety doors closed. This can prevent external objects from colliding with the adapter, corrugated compensator, and valve, and can also prevent non-staff members from freely entering under the support. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the entire utility model;

[0015] Figure 2 This is a schematic diagram showing the connection between the heat exchange tube and the corrugated compensator of this utility model;

[0016] Figure 3 This is a schematic diagram showing the connection between the bellows compensator and the valve of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection between the handle stud and the threaded sleeve of this utility model.

[0018] In the diagram: 1. Support; 2. Pier; 3. Insertion pipe; 4. Safety door; 5. Auxiliary door; 6. Discharge flange; 7. Liquid inlet flange; 8. Heat exchange tube; 9. Transfer pipe; 10. Corrugated compensator; 11. Valve; 12. Roller; 13. N-shaped plate; 14. Collar; 15. Handle stud; 16. Threaded sleeve; 17. Orifice plate; 18. Screw; 19. Nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] Please see Figure 1-4 This utility model provides a technical solution: a low-temperature conveying system for oil and gas recovery condensate, including a support 1, a heat exchange tube 8 installed on the upper surface of the support 1, and a plurality of corrugated compensators 10 installed at the lower end of the heat exchange tube 8. A transfer pipe 9 is connected between the corresponding corrugated compensators 10. The corrugated compensators 10 can prevent the heat exchange tube 8 from being damaged due to temperature, and can also solve the problem of high pressure in the heat exchange tube 8 when buffered petroleum gas is vaporized, and prevent the heat exchange tube 8 from expanding and being damaged.

[0022] Safety door 4, which has two doors and is rotatably connected to support 1, is equipped with a threaded locking device. Safety door 4 can block the empty space of support 1, preventing unauthorized personnel from freely walking under support 1, preventing interference with the normal operation of the ambient temperature vaporizer, and also preventing foreign objects from colliding with the corrugated compensator 10.

[0023] The auxiliary door 5 has two doors that are slidably connected to the two safety doors 4. The lower end of the auxiliary door 5 is equipped with rollers 12. The auxiliary door 5 blocks the space below the safety doors 4, thus ensuring the safety of the air-temperature vaporizer.

[0024] In this embodiment, as Figure 1 and Figure 4 As shown, the lower end of the support 1 is fixedly connected to the pier 2, which is buried underground to improve the stability of the support 1. The auxiliary door 5 adapts to the pier 2 of different lengths by lifting and lowering to ensure that the support 1 can be stably blocked.

[0025] In this embodiment, as Figure 1 As shown, a plug tube 3 is fixedly connected to the support 1. The safety door 4 is rotatably connected to the plug tube 3 through a plug post, thereby realizing the rotatable connection between the safety door 4 and the support 1. The safety door 4 is installed by plugging in, which is quick and convenient.

[0026] In this embodiment, as Figure 4 As shown, the safety door 4 has an n-shaped plate 13 on its surface. The auxiliary door 5 is inserted into the n-shaped plate 13 so that the auxiliary door 5 and the safety door 4 can slide up and down. The height of the upper end of the support 1 from the ground can be adjusted. At this time, the auxiliary door 5 moves up and down automatically to block the gap between the safety door 4 and the ground.

[0027] In this embodiment, as Figure 2 As shown, the heat exchange tube 8 is connected to an inlet flange 7 and an outlet flange 6. Liquid enters the heat exchange tube 8 through the inlet flange 7, and the vaporized gas and part of the liquid are discharged from the outlet flange 6.

[0028] In this embodiment, as Figure 4 As shown, the threaded locking device includes a threaded sleeve 16, a handle stud 15, and a collar 14. The threaded sleeve 16 and the collar 14 are fixed to the two safety doors 4. The threaded locking device keeps the safety doors 4 in a more stable closed state and makes it easier to open and close the safety doors 4.

[0029] In this embodiment, as Figure 3 As shown, the bellows compensator 10 is connected to a valve 11. When the bellows compensator 10 is damaged, the two valves 11 can be closed to replace the bellows compensator 10. The bellows compensator 10 has a perforated plate 17, and the screws 18 are inserted into the perforated plate 17. Each screw 18 is screwed with four nuts 19. The setting of the bolts can limit the extension range of the bellows compensator 10 and prevent the bellows compensator 10 from being damaged due to excessive stretching or compression.

[0030] Specifically, during use, the pier 2 is buried underground to improve the stability of the support 1 for the transfer pipe 9. When the safety door 4 is closed, the safety door 4 moves the auxiliary door 5 through the n-shaped plate 13. The roller 12 below the auxiliary door 5 rolls on the ground to reduce the resistance of closing the safety door 4. When the handle stud 15 is turned, it moves to the left in the threaded sleeve 16 and inserts into the collar 14 to keep the safety door 4 closed. The safety door 4 blocks the transfer pipe 9, the bellows compensator 10, and the valve 11 to prevent accidental collisions and improve the safety of use.

[0031] After liquefied petroleum gas enters the heat exchange tube 8, the vaporization of the liquefied petroleum gas causes the pressure in the heat exchange tube 8 to increase. The corrugated compensator 10 can compensate for the pressure changes in the heat exchange tube 8 within a certain range, prevent the pipeline from being damaged due to excessive pressure, and ensure the safe and stable operation of the pipeline system.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cryogenic conveying system for oil and gas recovery condensate, characterized in that, include: Support (1), heat exchange tube (8) is installed on the upper surface of the support (1), and several corrugated compensators (10) are installed at the lower end of the heat exchange tube (8), and a connecting pipe (9) is connected between the corrugated compensators (10). Safety door (4), the safety door (4) is provided with two leaves and is rotatably connected to the support (1), and a threaded locking device is installed on the safety door (4); An auxiliary door (5) is provided with two doors and is slidably connected to two safety doors (4). A roller (12) is installed at the lower end of the auxiliary door (5).

2. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The lower end of the support (1) is fixedly connected to the pier (2).

3. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The support (1) is fixedly connected to the insertion pipe (3), and the safety door (4) is rotatably connected to the insertion pipe (3) through the insertion post.

4. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The safety door (4) has an n-shaped plate (13) on its surface, and the auxiliary door (5) is inserted into the n-shaped plate (13) so that the auxiliary door (5) and the safety door (4) are slidably connected.

5. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The heat exchange tube (8) is connected to an inlet flange (7) and an outlet flange (6).

6. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The threaded locking device includes a threaded sleeve (16), a handle stud (15), and a collar (14), which are fixed to the two safety doors (4).

7. The cryogenic conveying system for oil and gas recovery condensate according to claim 1, characterized in that: The bellows compensator (10) is connected to a valve (11).

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