Oil-gas combined heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses an oil-steam combined heat exchanger which comprises a heat exchange box, a curved steam conveying pipe is arranged in the heat exchange box in a penetrating mode, a plurality of heat conduction fins are fixedly arranged on the pipe wall of the curved steam conveying pipe in a sleeved mode, and an end cover is arranged at the top end of the heat exchange box in an inserted connection mode. The inner wall, located on the heat conduction fins, of the curved steam conveying pipe is fixedly connected with heat conduction pieces, the top ends of the heat conduction pieces are fixedly connected with heat conduction rods, and a plurality of through holes are formed in the inner walls of the heat conduction fins. According to the heat conducting fin, the heat guiding-out efficiency can be improved, the heat conducting fin can guide out heat to the position, located in the through hole, of the heat conducting fin through the heat conducting rod, and the heat exchange efficiency can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an oil-gas combined heat exchanger. Background Art

[0002] The oil-gas combined heat exchanger is a device used for heat energy transfer, mainly used for heat exchange between high-temperature steam and low-temperature oil. This heat exchanger is usually composed of multiple heat exchange tube bundles, one of which is used to transfer heat and the other is used to transfer mass. Through the oil-gas combined heat exchanger, the high-temperature steam transfers heat to the low-temperature oil through one group of heat exchange tube bundles, and the oil also transfers mass to the steam through another group of heat exchange tube bundles, realizing the transfer of heat and mass.

[0003] In the prior art, during the use of the oil-gas combined heat exchanger, the oil and gas are subjected to heat exchange treatment through pipes, which block part of the heat, resulting in insufficient contact, which affects the surrounding effect of the heat exchanger and the heat exchange efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when oil and gas are subjected to heat exchange treatment through pipelines, the pipelines will block a part of the heat, resulting in insufficient contact, which will affect the surrounding effect of the heat exchanger and the heat exchange efficiency, and to propose an oil-gas combined heat exchanger.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An oil-steam combined heat exchanger comprises a heat exchange box, wherein a curved steam pipe is provided inside the heat exchange box, a plurality of heat-conducting fins are fixedly sleeved on the pipe wall of the curved steam pipe, an end cover is plugged at the top end of the heat exchange box, a heat-conducting fin is fixedly connected to the inner wall of the curved steam pipe located at the heat-conducting fin, a heat-conducting rod is fixedly connected to the top end of the heat-conducting fin, a plurality of through holes are opened on the inner wall of the heat-conducting fin, the heat-conducting rod extends to the inner wall of the heat-conducting fin located at the through hole, an oil inlet pipe is fixedly connected to the bottom of the heat exchange box, an oil outlet cylinder is fixedly connected to the top side wall of the heat exchange box, and a pressurizing mechanism is provided on the inner wall of the oil outlet cylinder.

[0007] Preferably, the boosting mechanism includes a baffle ring, a fixing ring, an elastic rod and a boosting valve, the baffle ring is fixedly connected to the inner wall of the oil outlet cylinder, the fixing ring is fixedly connected to the inner wall of the oil outlet cylinder, the elastic rod is fixedly connected to the side wall of the fixing ring, and the end of the elastic rod facing away from the fixing ring is fixedly connected to the boosting valve.

[0008] Preferably, the boost valve is configured to be spherical, and the side wall of the retaining ring is configured to be a concave surface matching the boost valve.

[0009] Preferably, a cavity is provided on the inner wall of the end cover, a spring is fixedly connected to the inner wall of the end cover located in the cavity, the end of the spring is fixedly connected to a limiting block, a limiting groove is provided on the top inner wall of the heat exchange box, and the limiting block is plugged into the inner wall of the limiting groove.

[0010] Preferably, a pull rod is fixedly connected to the side wall of the limit block, and the pull rod passes through the cavity and extends to the outside of the end cover.

[0011] Preferably, the heat-conducting fins on the wall of the curved steam transmission pipe are arranged in an interlaced manner.

[0012] Compared with the prior art, the utility model provides an oil-gas combined heat exchanger, which has the following beneficial effects:

[0013] 1. The oil-gas combined heat exchanger can improve the efficiency of heat extraction through the heat-conducting fins. The heat-conducting fins can extract the heat to the inside of the through-holes of the heat-conducting fins through the heat-conducting rods, which can further improve the heat exchange efficiency.

[0014] 2. The oil-steam combined heat exchanger can push the boost valve to extend to the side wall of the retaining ring through the elastic rod, which can increase the pressure inside the heat exchange box and prevent the oil from moving out quickly to affect the contact effect with the curved steam pipe.

[0015] 3. The oil-gas combined heat exchanger can push the limit block to extend to the inside of the limit groove through the spring, which can improve the stability of the end cover installed on the heat exchange box. The pull rod can be pulled later to move the limit block to the inside of the cavity, which is convenient for dismantling the end cover and subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an oil-gas combined heat exchanger proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B in the middle.

[0019] In the figure: 1 heat exchange box, 2 curved steam transmission pipe, 3 heat transfer fin, 4 end cover, 5 heat transfer sheet, 6 heat transfer rod, 7 oil outlet cylinder, 8 retaining ring, 9 fixing ring, 10 elastic rod, 11 boost valve, 12 spring, 13 limit block, 14 pull rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 A combined oil-gas heat exchanger comprises a heat exchange box 1, a curved steam pipe 2 is provided inside the heat exchange box 1, a plurality of heat-conducting fins 3 are fixedly sleeved on the pipe wall of the curved steam pipe 2, an end cover 4 is plugged at the top end of the heat exchange box 1, a heat-conducting fin 5 is fixedly connected to the inner wall of the curved steam pipe 2 located at the heat-conducting fin 3, a heat-conducting rod 6 is fixedly connected to the top end of the heat-conducting fin 5, a plurality of through holes are opened on the inner wall of the heat-conducting fin 3, the heat-conducting rod 6 extends to the inner wall of the heat-conducting fin 3 located at the through hole, an oil inlet pipe is fixedly connected to the bottom of the heat exchange box 1, and an oil outlet cylinder 7 is fixedly connected to the top side wall of the heat exchange box 1.

[0022] A boosting mechanism is provided on the inner wall of the oil outlet cylinder 7, and the boosting mechanism includes a retaining ring 8, a fixing ring 9, an elastic rod 10 and a boosting valve 11. The retaining ring 8 is fixedly connected to the inner wall of the oil outlet cylinder 7, the fixing ring 9 is fixedly connected to the inner wall of the oil outlet cylinder 7, the elastic rod 10 is fixedly connected to the side wall of the fixing ring 9, and the end of the elastic rod 10 facing away from the fixing ring 9 is fixedly connected to the boosting valve 11. The boosting valve 11 is set to be spherical, and the side wall of the retaining ring 8 is set to be a concave surface matching the boosting valve 11.

[0023] When in use, the curved steam pipe 2 can transport hot steam, and the oil can flow into the interior of the heat exchange box 1 through the oil inlet pipe at the bottom of the heat exchange box 1, and then be discharged through the oil outlet tube 7 after the heat exchange is completed. The heat-conducting fins 3 can improve the efficiency of heat extraction, and the heat-conducting sheet 5 can extract the heat to the inside of the through hole of the heat-conducting fin 3 through the heat-conducting rod 6, which can further improve the heat exchange efficiency. The elastic rod 10 can push the boost valve 11 to extend to the side wall of the retaining ring 8, which can increase the pressure inside the heat exchange box 1 and prevent the oil from moving out quickly and affecting the contact effect with the curved steam pipe 2.

[0024] In order to facilitate the removal of the end cover 4, Figure 1-Figure 3 As shown, a cavity is provided on the inner wall of the end cover 4, and a spring 12 is fixedly connected to the inner wall of the end cover 4 located in the cavity, and a limit block 13 is fixedly connected to the end of the spring 12. A limit groove is provided on the inner wall of the top end of the heat exchange box 1, and the limit block 13 is inserted into the inner wall of the limit groove. A pull rod 14 is fixedly connected to the side wall of the limit block 13, and the pull rod 14 passes through the cavity and extends to the outside of the end cover 4. The heat-conducting fins 3 on the wall of the multiple curved steam pipes 2 are staggered with each other.

[0025] The spring 12 can push the limit block 13 to extend into the limit groove, which can improve the stability of the end cover 4 installed on the heat exchange box 1. Subsequently, pulling the pull rod 14 can move the limit block 13 to retract into the cavity, making it easier to remove the end cover 4 and facilitate subsequent maintenance.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil-gas combined heat exchanger, comprising a heat exchange box (1), characterized in that: A curved steam pipe (2) is provided inside the heat exchange box (1), a plurality of heat-conducting fins (3) are fixedly sleeved on the pipe wall of the curved steam pipe (2), an end cover (4) is inserted at the top end of the heat exchange box (1), a heat-conducting fin (5) is fixedly connected to the inner wall of the curved steam pipe (2) located at the heat-conducting fin (3), a heat-conducting rod (6) is fixedly connected to the top end of the heat-conducting fin (5), a plurality of through holes are provided on the inner wall of the heat-conducting fin (3), the heat-conducting rod (6) extends to the inner wall of the heat-conducting fin (3) located at the through hole, an oil inlet pipe is fixedly connected to the bottom of the heat exchange box (1), an oil outlet cylinder (7) is fixedly connected to the top side wall of the heat exchange box (1), and a pressurizing mechanism is provided on the inner wall of the oil outlet cylinder (7).

2. The oil-gas combined heat exchanger according to claim 1, characterized in that: The boosting mechanism comprises a retaining ring (8), a fixing ring (9), an elastic rod (10) and a boosting valve (11); the retaining ring (8) is fixedly connected to the inner wall of the oil outlet cylinder (7); the fixing ring (9) is fixedly connected to the inner wall of the oil outlet cylinder (7); the elastic rod (10) is fixedly connected to the side wall of the fixing ring (9); and one end of the elastic rod (10) facing away from the fixing ring (9) is fixedly connected to the boosting valve (11).

3. The oil-gas combined heat exchanger according to claim 2, characterized in that: The boost valve (11) is configured to be spherical, and the side wall of the retaining ring (8) is configured to be a concave surface matching the boost valve (11).

4. The oil-gas combined heat exchanger according to claim 1, characterized in that: The inner wall of the end cover (4) is provided with a cavity, the inner wall of the end cover (4) located in the cavity is fixedly connected to a spring (12), the end of the spring (12) is fixedly connected to a limiting block (13), the inner wall of the top end of the heat exchange box (1) is provided with a limiting groove, and the limiting block (13) is inserted into the inner wall of the limiting groove.

5. The oil-gas combined heat exchanger according to claim 4, characterized in that: A pull rod (14) is fixedly connected to the side wall of the limit block (13), and the pull rod (14) passes through the cavity and extends to the outside of the end cover (4).

6. The oil-gas combined heat exchanger according to claim 1, characterized in that: The plurality of heat-conducting fins (3) on the pipe wall of the curved steam transmission pipe (2) are arranged in an interlaced manner.

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