Oil-gas heat exchanger for tail gas treatment

Abstract

The utility model discloses an oil-gas heat exchanger for tail gas treatment, and belongs to the technical field of oil-gas heat exchangers. The heat exchanger mainly comprises a heat exchanger body. A second overhaul cover is arranged at one end of the heat exchanger body. A second clamping ring is hinged to the first clamping ring; a butt joint plate is installed at one end of the second clamping ring, a rotating plate is installed on the first clamping ring, and a rotating shaft is movably installed on the rotating plate. A fixing sleeve plate is installed on a first clamping ring on the heat exchanger body, a sliding inserting plate is installed on a first clamping ring on the second overhaul cover, a sliding seat is installed at the bottom of the fixing sleeve plate, a supporting plate is installed on the sliding seat, and a lead screw is installed on the supporting plate through a bearing. According to the oil-gas heat exchanger for tail gas treatment, through the arrangement of the first clamping ring, the second clamping ring, the butt joint plate, the rotating plate, the rotating shaft, the fastener, the fixed sleeve plate, the sliding insertion plate, the sliding base, the lead screw, the supporting plate, the rotating handle and the moving plate, mounting, positioning and fastening operation between the second overhaul cover and the heat exchanger body is conveniently achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of oil-gas heat exchangers, in particular to an oil-gas heat exchanger for tail gas treatment. BACKGROUND

[0002] An oil-gas heat exchanger is a heat exchange device mainly used for heat exchange between oil and gas. Its purpose is to transfer heat from high-temperature oil or gas to low-temperature another party to achieve heating or cooling effect, so as to realize energy recycling or meet the temperature control requirements in industrial processes. Oil-gas heat exchangers are generally divided into tube-shell type, plate type and finned tube type.

[0003] In many existing tail gas treatment processes, it is necessary to use an oil-gas heat exchanger, especially in some industrial tail gas treatment systems, which can bring many benefits, but whether to use it or not depends on the specific situation of tail gas treatment;

[0004] For example, the patent with the publication number CN221571187U specifically discloses a double-sided detachable tube heat exchanger, which comprises a heat exchanger body, support legs, an air inlet pipe, an air outlet pipe and a heat exchange mechanism, so that when the equipment is faulty, the heat exchanger body is exposed by detaching the fastening screws on both sides and removing the first and second maintenance covers, facilitating maintenance and improving use convenience.

[0005] In the above patent, the second maintenance cover is fixed to the heat exchanger body by a plurality of fastening screws. Since a plurality of fastening screws are used, each screw needs to be unscrewed in sequence when the maintenance cover is disassembled. For large heat exchangers or those with more fastening screws, this process is very time-consuming. In addition, during the disassembly and assembly process, the fastening screws may be lost due to various reasons, especially in complex maintenance environments, the screws may roll into difficult-to-find places. Therefore, an oil-gas heat exchanger for tail gas treatment is needed to solve the above problems.

[0006] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide an oil-gas heat exchanger for tail gas treatment, which solves the problem in the above patent that the second maintenance cover is fixed to the heat exchanger body by a plurality of fastening screws. When the maintenance cover is disassembled, each screw needs to be unscrewed in sequence. For large heat exchangers or in the case of installing more fastening screws, this process is very time-consuming. In addition, during the disassembly and assembly process, the fastening screws may be lost due to various reasons, especially in a complex maintenance environment, the screws may roll into a difficult-to-find place.

[0008] The technical scheme adopted by the present application to solve the technical problem is an oil-gas heat exchanger for tail gas treatment. It mainly comprises: a heat exchanger body, one end of the heat exchanger body is provided with a second maintenance cover; a fixing mechanism connected between the second maintenance cover and the heat exchanger body; a first clamping ring is attached to the second maintenance cover, a second clamping ring is hinged to the first clamping ring; a butt plate is installed at one end of the second clamping ring, an open clamping groove is formed in the butt plate, a rotating plate is installed on the first clamping ring, a rotating shaft is movably installed on the rotating plate, and a fastener is threadedly connected to the rotating shaft; a fixed sleeve plate is installed on the first clamping ring of the heat exchanger body, a sliding plate is installed on the first clamping ring of the second maintenance cover, a sliding seat is installed at the bottom of the fixed sleeve plate, a support plate is installed on the sliding seat, and a lead screw is installed on the support plate through a bearing; a guide groove is formed in the sliding seat, a moving plate is slidably installed in the guide groove, the top surface of the moving plate is fixedly connected to the sliding plate, and a through groove is formed in the sliding seat.

[0009] Further, the fixing mechanism comprises a fixing plate installed on the second maintenance cover, the fixing plate is sleeved on the second maintenance cover, four guide rods are installed on the fixing plate, and a positioning plate is sleeved on the heat exchanger body.

[0010] Further, one end of the lead screw is provided with a rotating handle.

[0011] Further, the heat exchanger body is connected and installed with an air inlet pipe.

[0012] Further, a medium conveying pipe is installed inside the heat exchanger body.

[0013] Further, a first maintenance cover is bolted at one end of the heat exchanger body, and an air outlet pipe is connected and installed on the first maintenance cover.

[0014] The beneficial effects of the present application are: the oil-gas heat exchanger for tail gas treatment provided by the present application is convenient to realize the installation, positioning and fastening operation between the second maintenance cover and the heat exchanger body through the setting of the first clamping ring, the second clamping ring, the butt joint plate, the rotating plate, the rotating shaft, the fastener, the fixed sleeve plate, the sliding insertion plate, the sliding seat, the lead screw, the support plate, the rotating handle and the moving plate.

[0015] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 is a whole schematic view of an oil-gas heat exchanger for tail gas treatment in the present application;

[0018] Figure 2 is an exploded view of Figure 1 ;

[0019] Figure 3 is an enlarged view of point A of Figure 2 ;

[0020] Figure 4 is an enlarged view of point B of Figure 3 ;

[0021] In the drawings, various reference signs refer to:

[0022] 1, heat exchanger body; 11, support leg; 12, air inlet pipe; 13, first maintenance cover; 14, second maintenance cover; 15, air outlet pipe; 2, fixing mechanism; 21, fixing plate; 22, guide rod; 23, alignment plate; 24, first clamping ring; 25, second clamping ring; 26, butt joint plate; 27, rotating plate; 28, rotating shaft; 29, fastener; 210, fixed sleeve plate; 211, sliding insertion plate; 212, sliding seat; 213, lead screw; 214, support plate; 215, rotating handle; 216, guide groove; 217, through groove; 218, moving plate. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should be within the scope of protection of the present application.

[0025] As shown in Figures 1-4 The present application provides an oil-gas heat exchanger for tail gas treatment, which comprises a heat exchanger body 1, an air inlet pipe 12 is installed in communication on the heat exchanger body 1, which is used for the tail gas to enter, and a supporting leg 11 is fixedly installed on the heat exchanger body 1, which is used for stable support of the heat exchanger body 1.

[0026] A medium conveying pipe (not shown in the figure) is fixedly installed inside the heat exchanger body 1, which is suitable for heat exchange reaction with the heat exchange tail gas, a first maintenance cover 13 is bolted at one end of the heat exchanger body 1, and an air outlet pipe 15 is installed in communication on the first maintenance cover 13, which is suitable for discharging the heat exchange finished tail gas.

[0027] The gas to be heat exchanged is conveyed into the heat exchanger body 1 through the air inlet pipe 12, and then the heat exchange tail gas flows inside the heat exchanger body 1, the heat exchange tail gas is heat exchanged with the medium conveying pipe, the heat exchange medium is conducted into the heat exchange tail gas, and then the heat exchange tail gas is discharged through the air outlet pipe 15 for use;

[0028] A second maintenance cover 14 is provided at the other end of the heat exchanger body 1, a fixing mechanism 2 is connected and installed between the second maintenance cover 14 and the heat exchanger body 1, the fixing mechanism 2 comprises a fixing plate 21 fixedly installed on the second maintenance cover 14, the fixing plate 21 is sleeved on the second maintenance cover 14, four sets of guide rods 22 are fixedly installed on the fixing plate 21, at the same time, a positioning plate 23 is fixedly sleeved on the heat exchanger body 1, at the same time, a through hole (not marked in the figure) adapted to the guide rod 22 is formed in the positioning plate 23, and the fixing plate 21 is inserted into the through hole through the guide rod 22.

[0029] When the second maintenance cover 14 is close to the heat exchanger body 1, the guide rod 22 plays a guiding and positioning role, ensures the accurate relative position of the second maintenance cover 14 and the heat exchanger body 1, avoids the deviation of the two during the connection process, and provides a good foundation for the subsequent clamping operation;

[0030] A first clamping unit is attached to the second inspection cover 14. The first clamping unit includes a first clamping ring 24 attached to the second inspection cover 14, a second clamping ring 25 hinged to the first clamping ring 24, a docking plate 26 fixedly installed at one end of the second clamping ring 25, the docking plate 26 having an open slot, and a rotating plate 27 fixedly installed on the first clamping ring 24. A rotating shaft 28 is movably installed on the rotating plate 27. The rotating shaft 28 is suitable for rotation to engage in the open slot, so as to achieve initial docking between the first clamping ring 24 and the second clamping ring 25.

[0031] A fastener 29 is threaded onto the rotating shaft 28. The fastener 29 is adapted to rotate so as to fix the rotating shaft 28 in the open slot so as to fit and fix the first clamping ring 24 and the second clamping ring 25 onto the second inspection cover 14. A second clamping unit is installed on the heat exchanger body 1. The second clamping unit has a similar structure to the first clamping unit.

[0032] A fixed sleeve plate 210 is fixedly installed on the first clamping ring 24 on the heat exchanger body 1, and a sliding plate 211 is fixedly installed on the first clamping ring 24 on the second inspection cover 14. The sliding plate 211 can be movably connected to the fixed sleeve plate 210. A sliding seat 212 is fixedly installed at the bottom of the fixed sleeve plate 210, and a support plate 214 is fixedly installed on the sliding seat 212. A lead screw 213 is mounted on the support plate 214.

[0033] A guide groove 216 is provided on the sliding seat 212, and a movable plate 218 is slidably installed on the guide groove 216. The movable plate 218 is connected to the lead screw 213 for transmission. The lead screw 213 can rotate to drive the movable plate 218 to move closer to or away from the support plate 214 along the straight direction of the sliding seat 212.

[0034] The top surface of the movable plate 218 is fixedly connected to the sliding plate 211. At the same time, a through groove 217 adapted to the width of the movable plate 218 is provided on the sliding seat 212. The through groove 217 can provide space for the movement of the movable plate 218. The sliding plate 211 is suitable for moving synchronously with the movement of the movable plate 218 to drive the second maintenance cover 14 to move closer to one end of the heat exchanger body 1, so as to fix the second maintenance cover 14 to one end of the heat exchanger body 1.

[0035] A throttle 215 is fixedly installed at one end of the lead screw 213, which is suitable for rotating the lead screw 213;

[0036] Firstly, the first clamping ring 24 is tightly fitted on the second maintenance cover 14, providing a foundation support for the subsequent clamping operation. The second clamping ring 25 is connected to the first clamping ring 24 by a hinged structure, so that the second clamping ring 25 can rotate relative to the first clamping ring 24. This hinged structure allows the second clamping ring 25 to move within a certain range, facilitating subsequent operations.

[0037] And the rotating shaft 28 movably installed on the rotating plate 27 can rotate freely. When performing the preliminary docking operation, rotate the rotating shaft 28 to the opening clamping groove position of the docking plate 26, so that it is clamped in the opening clamping groove. This action realizes the preliminary connection between the first clamping ring 24 and the second clamping ring 25, so that they can form a ring-shaped clamping structure around the second maintenance cover 14.

[0038] At the same time, due to the self-locking property of the screw thread, as the fastener 29 rotates, it will push the rotating shaft 28 into the opening clamping groove, firmly clamping the rotating shaft 28 in the opening clamping groove, thereby tightly sleeving the first clamping ring 24 and the second clamping ring 25 on the second maintenance cover 14.

[0039] This fixing method can provide sufficient clamping force, ensuring that the second maintenance cover 14 is uniformly pressed in all directions, preventing it from loosening or shifting, and ensuring the stability of the maintenance cover. At the same time, in actual application, the tightening degree of the fastener 29 can be adjusted according to needs to achieve different clamping effects, adapting to different working conditions and sealing requirements.

[0040] By rotating the rotating handle 215, the lead screw 213 can be driven to rotate. When the lead screw 213 rotates, it will drive the moving plate 218 connected in transmission to move along the straight line direction of the sliding seat 212. Since the top surface of the moving plate 218 is fixedly connected with the sliding plate 211, and the through groove 217 provides space for the movement of the moving plate 218, when the lead screw 213 drives the moving plate 218 to move, the sliding plate 211 will move synchronously. By controlling the rotation direction of the rotating handle 215, the moving plate 218 can be moved along the guide groove 216 towards or away from the support plate 214. When the moving plate 218 moves, it will drive the sliding plate 211 to move, and then drive the second maintenance cover 14 to move towards or away from one end of the heat exchanger body 1. Finally, by accurately adjusting the rotation angle of the rotating handle 215, the second maintenance cover 14 can be accurately fixed at one end of the heat exchanger body 1, realizing the tight fitting and firm connection between the two.

[0041] The first and second clamping units are similar in structure and are located at different positions, and they work together to clamp and position the second maintenance cover 14. Through this symmetrical or multi-position arrangement, it can be ensured that the second maintenance cover 14 can be uniformly clamped in all directions, avoiding the situation of poor sealing or unstable structure caused by uneven local force.

[0042] In actual operation, the first and second clamping units are used to complete the preliminary clamping and positioning of the second maintenance cover 14, and then the sliding plate 211 is moved by the lead screw mechanism to further accurately adjust the position of the second maintenance cover 14, and finally the second maintenance cover 14 is firmly fixed on the heat exchanger body 1.

[0043] Through the above working principle, the device can conveniently realize the installation, positioning and fastening operation between the second maintenance cover 14 and the heat exchanger body 1, and when disassembly is needed, the operation can be performed in the opposite order, first loosen the fastener 29, then reverse the rotation of the handle 215, so that the second maintenance cover 14 is away from the heat exchanger body 1, thereby realizing the disassembly of the maintenance cover, providing a convenient and efficient operation mode for the maintenance and maintenance of the heat exchanger.

[0044] The device comprehensively utilizes the flexible docking and fastening of the clamping unit and the accurate position adjustment of the lead screw mechanism, so that the connection between the second maintenance cover 14 and the heat exchanger body 1 is more firm and stable, while ensuring the convenience and reliability of the operation, meeting the actual needs in the process of equipment maintenance and maintenance.

[0045] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An oil-gas heat exchanger for exhaust gas treatment, characterized in that: include: Heat exchanger body (1), one end of which is provided with a second maintenance cover (14); Fixing mechanism (2), which is connected between the second inspection cover (14) and the heat exchanger body (1); A first clamping ring (24) is fitted onto the second inspection cover (14), and a second clamping ring (25) is hinged to the first clamping ring (24). A docking plate (26) is installed at one end of the second clamping ring (25). An open slot is provided on the docking plate (26). A rotating plate (27) is installed on the first clamping ring (24). A rotating shaft (28) is movably installed on the rotating plate (27). A fastener (29) is threaded onto the rotating shaft (28). A fixed sleeve plate (210) is installed on the first clamping ring (24) on the heat exchanger body (1), and a sliding plate (211) is installed on the first clamping ring (24) on the second maintenance cover (14). A sliding seat (212) is installed at the bottom of the fixed sleeve plate (210), and a support plate (214) is installed on the sliding seat (212). A lead screw (213) is installed on the support plate (214) with a bearing. The sliding seat (212) has a guide groove (216), and a movable plate (218) is slidably installed on the guide groove (216). The top surface of the movable plate (218) is fixedly connected to the sliding plate (211), and a through groove (217) is provided on the sliding seat (212).

2. The oil-gas heat exchanger for exhaust gas treatment according to claim 1, characterized in that: The fixing mechanism (2) includes a fixing plate (21) installed on the second maintenance cover (14). The fixing plate (21) is sleeved on the second maintenance cover (14). Four sets of guide rods (22) are installed on the fixing plate (21). An alignment plate (23) is sleeved on the heat exchanger body (1). The alignment plate (23) has a through hole.

3. The oil-gas heat exchanger for exhaust gas treatment according to claim 2, characterized in that: A throttle (215) is installed at one end of the lead screw (213).

4. The oil-gas heat exchanger for exhaust gas treatment according to claim 3, characterized in that: An air inlet pipe (12) is connected and installed on the heat exchanger body (1).

5. An oil-gas heat exchanger for exhaust gas treatment according to claim 4, characterized in that: The heat exchanger body (1) is equipped with a medium delivery pipe.

6. The oil-gas heat exchanger for exhaust gas treatment according to claim 5, characterized in that: The heat exchanger body (1) is bolted to one end of a first inspection cover (13), and an exhaust pipe (15) is connected to the first inspection cover (13).

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