An environmentally friendly and efficient heat exchanger for petrochemical industry

Abstract

The present invention belongs to the technical field of heat exchangers, and particularly relates to an environment-friendly and highly efficient heat exchanger for petrochemical industry, which comprises a heat exchange shell and an external pipeline system; the heat exchange shell includes end shells, conversion shells, partition plates, heat exchange tubes and a main shell; a cold end inlet is arranged on the side walls at both ends of the main shell, and a cold end outlet is arranged on the side wall in the middle; both ends of the main shell are connected to the end shells through the conversion shells, and a hot end inlet and a hot end outlet are respectively arranged on the two end shells; the lumen of the heat exchange tubes is communicated with the hot end inlet and the hot end outlet; the external pipeline system includes a pressure pump, a solenoid valve and a water pump. In this solution, the turbulent flow generated by the collision of the medium flow at the cold end outlet increases the heat exchange efficiency, and through the opening control of the solenoid valve, the flow control at different cold end inlets is realized, which is beneficial to controlling the heat exchange effect; the main shell adopts a flat tube structure, which reduces the climbing height of the water medium in the vertical direction, making the heat exchange effects of the heat exchange tubes at different heights more similar.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchangers, and particularly relates to an efficient heat exchanger for environmental protection petrochemical industry. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, food and others. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used. When a chemical heat exchanger is working, usually a hot fluid is continuously put into the shell side, and at the same time, the chemical petroleum raw materials that need heat exchange treatment are put into the tube side, and heat exchange treatment is carried out through the circulation of the petroleum raw materials and the heat medium.

[0003] The shell-and-tube heat exchanger is the most widely used heat exchanger in chemical production. When heat exchange is carried out, one fluid enters from one end of the shell-and-tube heat exchanger, then passes through the heat exchange tubes and flows out from the other end; similarly, another fluid enters from one end of the shell and flows out from the other end of the shell. In the existing shell-and-tube heat exchangers, there is often only one inlet and outlet at the cold end or the hot end. When adjusting the medium temperature at the outlet end of the shell-and-tube heat exchanger, it often takes a long time to change the medium flow rate and the medium temperature in order to achieve precise adjustment of the output temperature. However, this method is inefficient, especially for large shell-and-tube heat exchangers with a volume of more than 700 cubic meters, and the time required to complete the medium temperature adjustment often reaches more than 10 minutes.

[0004] Therefore, it is necessary to design an efficient heat exchanger that can quickly adjust the outlet medium temperature. Summary of the Invention

[0005] In order to solve the above problems existing in the prior art, this solution provides an efficient heat exchanger for environmental protection petrochemical industry.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An efficient heat exchanger for environmental protection petrochemical industry, comprising a heat exchange shell and an external pipeline system;

[0008] The heat exchange shell includes end shells, conversion shells, isolation plates, heat exchange tubes and a main shell; the main shell is a flat tube structure, the width of the main shell is greater than its height, cold end inlets are provided on the side walls at both ends of the main shell, and a cold end outlet is provided on the side wall in the middle of the main shell; end shells are provided at both ends of the main shell, a hot end inlet and a hot end outlet are respectively provided on the two end shells, the end shells are circular cover structures and are respectively connected to the main shell through conversion shells; two isolation plates are respectively arranged inside both ends of the main shell, and a number of heat exchange tubes are connected between the two isolation plates; the tube cavities of the heat exchange tubes are communicated with the hot end inlet and the hot end outlet;

[0009] The external pipeline system includes a pressure pump, a solenoid valve and a water pump; the water outlet end of the pressure pump is respectively communicated with two cold end inlets through the solenoid valve, and the water inlet end of the water pump is communicated with the cold end outlet.

[0010] As an alternative or supplement to the above solution: a ring pipe is arranged in the main housing, which is communicated with the cold end outlet at the lower part of the ring pipe, and a plurality of through holes are arranged on the pipe wall of the ring pipe. The higher the position of the through hole, the larger the aperture of the through hole.

[0011] As an alternative or supplement to the above solution: an outlet cover is arranged on the inner wall of the main housing, which covers the cold end outlet, and the cover cavity of the outlet cover is communicated with the cold end outlet; the ring pipe is slidably matched with the outlet cover, and the pipe cavity of the ring pipe is communicated with the cover cavity of the outlet cover.

[0012] As an alternative or supplement to the above solution: a plurality of folding baffles are arranged on the side surface of the outlet cover. One end of the folding baffle is fixedly connected with the end of the outlet cover, and the other end is connected with the pipe wall of the ring pipe; when the ring pipe slides along the length direction of the outlet cover, the folding baffle is stretched or compressed.

[0013] As an alternative or supplement to the above solution: a transverse movement control mechanism is arranged on the inner wall of the main housing. The transverse movement control mechanism includes a first synchronous belt, a plurality of first synchronous wheels and a plurality of transverse movement lead screws; the plurality of transverse movement lead screws are arranged along the circumferential direction of the ring pipe, and each vertically passes through the ring pipe and is in threaded cooperation with the pipe wall of the ring pipe; the plurality of first synchronous wheels are coaxially connected to one end of the corresponding transverse movement lead screw and are meshed with the first synchronous belt.

[0014] As an alternative or supplement to the above solution: the transverse movement control mechanism further includes a first operating rod, a first bevel gear disk and a first bevel gear; the first operating rod is rotatably arranged on the side wall of the main housing, the first bevel gear disk is coaxially connected with the first operating rod, and the first bevel gear is coaxially connected with one of the transverse movement lead screws and is meshed with the first bevel gear disk.

[0015] As an alternative or supplement to the above solution: a flow disturbing mechanism is arranged on the inner ring side of the ring pipe. The flow disturbing mechanism includes a flow disturbing belt, which is of a flat belt structure. The upper end of the flow disturbing belt is connected to the top of the ring pipe, and the lower end of the flow disturbing belt is connected to the bottom of the ring pipe.

[0016] As an alternative or supplement to the above solution: The flow disturbing mechanism includes an upper housing seat, an upper conical disk, a second synchronous belt, an upper synchronous gear, and an upper bevel gear; the upper housing seat is fixed at the top of the annular tube, the upper conical disk is arranged in the inner cavity of the upper housing seat, the central axis of the upper conical disk extends out of the upper housing seat and is connected to the upper end of the flow disturbing belt; the upper bevel gear is arranged in the inner cavity of the upper housing seat and meshes with the upper conical disk; the upper synchronous gear is coaxially connected to the upper bevel gear; both the inner and outer side surfaces of the second synchronous belt have tooth patterns, and the tooth patterns on the inner side surface of the second synchronous belt mesh with the upper synchronous gear.

[0017] As an alternative or supplement to the above solution: The flow disturbing mechanism further includes a lower housing seat, a lower conical disk, a lower bevel gear, and a lower synchronous gear; the lower housing seat is fixed at the bottom of the annular tube, the lower conical disk is arranged in the inner cavity of the lower housing seat, the central axis of the lower conical disk extends out of the lower housing seat and is connected to the lower end of the flow disturbing belt; the lower bevel gear is arranged in the inner cavity of the lower housing seat and meshes with the lower conical disk; the lower synchronous gear is coaxially connected to the lower bevel gear; the tooth patterns on the outer side surface of the second synchronous belt mesh with the lower synchronous gear.

[0018] As an alternative or supplement to the above solution: A second bevel gear, a third bevel gear, and a second operating rod are installed at the side wall of the lower part of the main housing; the second operating rod is rotatably arranged on the side wall of the main housing, the third bevel gear is coaxially connected to the second operating rod, the second bevel gear is coaxially connected to the female plug and meshes with the third bevel gear, the lower synchronous gear is coaxially connected with a male plug, and the male plug extends out of the lower housing seat; when the annular tube moves to the limit position, the male plug and the female plug are correspondingly plugged to adjust the rotation angle of the flow disturbing belt through the second operating rod.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. In this solution, the main housing adopts a structural design with two cold end inlets and one cold end outlet. It can not only increase the heat exchange efficiency through the flow disturbance generated by the collision of the medium flow at the cold end outlet, but also realize the flow control at different cold end inlets through the opening degree control of the electromagnetic valve at the cold end inlet, which is beneficial to controlling the heat exchange effect and achieving the precise control effect of the medium output temperature.

[0021] 2. In this solution, the main housing adopts a flat tube structure. When the cold end inlet and the cold end outlet are in the same direction of the main housing, it can also reduce the climbing height of the medium in the vertical direction, making the heat exchange effects of the heat exchange tubes at different heights more consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this solution or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0023] Figure 1It is a schematic structural diagram of the high-efficiency heat exchanger in this solution;

[0024] Figure 2 It is a sectional structural diagram of the main housing;

[0025] Figure 3 It is an internal structural diagram of the high-efficiency heat exchanger in this solution;

[0026] Figure 4 It is a distribution diagram of the flow disturbing mechanism and the heat exchange tubes in the main housing;

[0027] Figure 5 It is a mating structural diagram of the outlet cover and the annular pipe;

[0028] Figure 6 It is a structural diagram of the transverse movement control mechanism;

[0029] Figure 7 It is a schematic structural diagram of the flow disturbing mechanism.

[0030] In the figure: 1 - heat exchange shell; 11 - end shell; 12 - conversion shell; 13 - main housing; 14 - cold end inlet; 15 - cold end outlet; 16 - partition board; 17 - heat exchange tube; 2 - annular pipe; 3 - external pipeline system; 31 - pressure pump; 32 - solenoid valve; 33 - water pump; 4 - transverse movement control mechanism; 41 - first operating rod; 42 - first bevel gear disk; 43 - first bevel gear; 44 - first synchronous pulley; 45 - first synchronous belt; 46 - transverse movement lead screw; 5 - outlet cover; 51 - folding baffle; 6 - flow disturbing mechanism; 61 - upper housing seat; 62 - upper cone disk; 63 - second synchronous belt; 64 - upper synchronous gear; 65 - upper bevel gear; 66 - flow disturbing belt; 67 - lower housing seat; 68 - lower cone disk; 69 - lower synchronous gear; 610 - female plug; 611 - second bevel gear; 612 - third bevel gear; 613 - second operating rod; 614 - male plug. Specific implementation manners

[0031] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. The described embodiments are only a part of the embodiments, rather than all of them. Based on the embodiments in this solution, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of this solution.

[0032] Embodiment 1

[0033] As Figures 1 to 2 shown, this embodiment designs an environmentally friendly and efficient heat exchanger for petrochemical industry, including a heat exchange shell 1 and an external pipeline system 3.

[0034] The heat exchange shell 1 includes components such as end shells 11, conversion shells 12, isolation plates 16, heat exchange tubes 17, and main shells 13. The main shell 13 is a flat tube structure, and the width of the main shell 13 is greater than its height. When the cold end inlet and the cold end outlet 15 are in the same direction of the main shell 13, it can also reduce the climbing height of the medium in the vertical direction, making the heat exchange effects of the heat exchange tubes 17 at different heights more convergent.

[0035] Cold end inlets 14 are provided on the lower side walls at both ends of the main shell 13, and a cold end outlet 15 is provided on the side wall in the middle of the main shell 13; the water medium can enter from the two cold end inlets 14 and then flow out from the cold end outlet 15. The structural design of the two cold end inlets and one cold end outlet 15 can not only increase the heat exchange efficiency through the turbulent flow generated by the collision of the medium flow at the cold end outlet 15, but also control the flow rate at the two cold end inlets, which is beneficial to controlling the heat exchange effect and achieving the effect of precise control of the medium output temperature.

[0036] End shells 11 are provided at both ends of the main shell 13, and a hot end inlet and a hot end outlet are respectively provided on the two end shells 11. The liquid medium in petrochemical industry flows in from the hot end inlet and flows out from the hot end outlet, and exchanges heat with the water medium in the heat exchange tubes 17.

[0037] The end shell 11 is a round cover structure, so as to directly use the existing end shell 11 products and reduce the production and application costs. The end shell 11 is connected to the main shell 13 through the conversion shell 12 respectively. One end of the conversion shell 12 is a circular opening for connecting the end shell 11, and the other end of the conversion shell 12 is a flat opening for connecting the end of the main shell 13. Two isolation plates 16 are respectively arranged inside both ends of the main shell 13, and a number of heat exchange tubes 17 are connected between the two isolation plates 16; the tube cavities of the heat exchange tubes 17 are communicated with the hot end inlet and the hot end outlet. The edge of the isolation plate 16 is hermetically connected to the main shell 13, so that the isolation plate 16 can separate the chambers on its left and right sides. At the same time, the isolation plate 16 is also connected to the ends of the heat exchange tubes 17, so that the medium in the heat exchange tubes 17 can flow out or flow into the side of the isolation plate 16 away from the heat exchange tubes 17.

[0038] The external pipeline system 3 includes a pressure pump 31, a solenoid valve 32, and a water pump 33; the water outlet end of the pressure pump 31 is respectively communicated with the two cold end inlets 14 through the solenoid valve 32, and the water inlet end of the water pump 33 is communicated with the cold end outlet 15. The power of the pressure pump 31, the power of the water pump 33, and the opening degree of the solenoid valve 32 can be controlled by a PLC controller or an industrial computer; the PLC controller or the industrial computer can control the opening degree of the solenoid valve 32 at the cold end inlet to achieve the flow control at different cold end inlets, which is beneficial to controlling the heat exchange effect and achieving the effect of precise control of the medium output temperature.

[0039] A ring pipe 2 is arranged inside the main housing 13. The lower part of the ring pipe 2 is communicated with the cold end outlet 15. A plurality of through holes are arranged on the pipe wall of the ring pipe 2. The higher the position of the through hole, the larger the aperture of the through hole. Thus, the water entering from the cold end inlet can flow to the through holes at different heights, so as to ensure that the heat exchange effects of different heat exchange pipes 17 are more similar in the vertical direction.

[0040] Embodiment 2

[0041] As Figures 1 to 6 shown, on the basis of the structure of Embodiment 1, the structure in this embodiment is designed.

[0042] An outlet cover 5 is arranged on the inner wall of the main housing 13. The outlet cover 5 is in an arch shape. Both ends of the outlet cover 5 are connected to the inner wall of the main housing 13. The outlet cover 5 covers the cold end outlet 15. The cover cavity of the outlet cover 5 is communicated with the cold end outlet 15. Lateral openings are arranged on the left and right sides of the outlet cover 5. The lower part of the ring pipe 2 extends into the outlet cover 5 from the lateral openings. Larger hollow holes are arranged on the side wall of the lower part of the ring pipe 2, so that the cover cavity of the outlet cover 5 is communicated with the cold end outlet 15, facilitating the medium in the ring pipe 2 to flow into the outlet cover 5 and then flow out from the cold end outlet 15. The ring pipe 2 is in sliding fit with the outlet cover 5, and the pipe cavity of the ring pipe 2 is communicated with the cover cavity of the outlet cover 5. Since the ring pipe 2 can move in the left and right directions in the main housing 13, the distance between the ring pipe 2 and the two cold end inlets can be changed as required, enabling the water medium entering from the two cold end inlets to be mixed at different positions, which is more convenient for accurately controlling the temperatures at the outlets of the cold end and the hot end.

[0043] As Figure 5 shown, a plurality of folding baffles 51 are arranged on the side surface of the outlet cover 5. The folding baffles 51 are arranged at the lateral openings. One end of the folding baffle 51 is fixedly connected to the end of the outlet cover 5, and the other end is connected to the pipe wall of the ring pipe 2. When the ring pipe 2 slides along the length direction of the outlet cover 5 (i.e., slides along the lateral opening), some of the folding baffles 51 are stretched and some are compressed.

[0044] As Figure 6As shown in the figure, a transverse movement control mechanism 4 is provided on the inner wall of the main housing 13. The transverse movement control mechanism 4 includes components such as a first synchronous belt 45, a plurality of first synchronous wheels 44, and a plurality of transverse movement lead screws 46. The plurality of transverse movement lead screws 46 are arranged circumferentially along the annular pipe 2. The length direction of the transverse movement lead screw 46 is consistent with the sliding direction of the annular pipe 2. Both ends of the transverse movement lead screw 46 are connected to the inner wall of the main housing 13 through supports. Each transverse movement lead screw 46 vertically passes through the annular pipe 2 and is in threaded cooperation with the pipe wall of the annular pipe 2. Thus, when the transverse movement lead screw 46 rotates, the annular pipe 2 can be controlled to slide left and right. The plurality of first synchronous wheels 44 correspond to the plurality of transverse movement lead screws 46 one by one. The first synchronous wheel 44 is coaxially connected to one end of the corresponding transverse movement lead screw 46 and meshes with the first synchronous belt 45. When the first synchronous belt 45 is driven, it can make each transverse movement lead screw 46 rotate simultaneously. In addition, a guide wheel can be provided on the inner wall of the main housing 13, and the guide wheel can guide the first synchronous belt 45 to make the first synchronous belt 45 closer to the inner wall of the main housing 13.

[0045] The transverse movement control mechanism 4 further includes components such as a first operating rod 41, a first bevel gear disk 42, and a first bevel gear 43. The first operating rod 41 is rotatably provided on the side wall of the main housing 13. One end of the first operating rod 41 extends outside the main housing 13, and the other end extends into the main housing 13. The first bevel gear disk 42 is coaxially connected to the first operating rod 41. When the first operating rod 41 is manually rotated, the first bevel gear disk 42 rotates synchronously. The first bevel gear 43 is coaxially connected to one of the transverse movement lead screws 46, and the first bevel gear 43 meshes with the first bevel gear disk 42, thus facilitating the use of the first operating rod 41 to control the transverse movement position of the annular pipe 2.

[0046] Embodiment 3

[0047] As Figures 1 to 7 shown, based on the structure of Embodiment 2, the structure in this embodiment is designed.

[0048] A flow disturbance mechanism 6 is provided on the inner ring side of the annular pipe 2. The flow disturbance mechanism 6 includes a flow disturbance belt 66. The flow disturbance belt 66 is a flat belt structure. The flow disturbance belt 66 passes through the gaps between the heat exchange pipes 17. The upper end of the flow disturbance belt 66 is connected to the top of the annular pipe 2, and the lower end of the flow disturbance belt 66 is connected to the bottom of the annular pipe 2. The flow disturbance belt 66 can decelerate the water medium, so that the water medium can collide better at the annular pipe 2 to form a flow disturbance, improving the heat exchange effect of the heat exchange pipes 17.

[0049] As Figure 7 shown, the flow disturbance mechanism 6 includes components such as an upper housing seat 61, an upper cone disk 62, a second synchronous belt 63, an upper synchronous gear 64, an upper bevel gear 65, a lower housing seat 67, a lower cone disk 68, a lower bevel gear, and a lower synchronous gear 69.

[0050] The upper housing base 61 is fixed to the top of the annular tube 2. The upper conical disk 62 is arranged in the inner cavity of the upper housing base 61. The central axis of the upper conical disk 62 extends out of the upper housing base 61 and is connected to the upper end of the spoiler strip 66. The upper bevel gear 65 is arranged in the inner cavity of the upper housing base 61 and meshes with the upper conical disk 62. The upper synchronous gear 64 is coaxially connected to the upper bevel gear 65. The inner and outer side surfaces of the second synchronous belt 63 both have tooth patterns, and the tooth pattern on the inner side surface of the second synchronous belt 63 meshes with the upper synchronous gear 64.

[0051] The lower housing base 67 is fixed to the bottom of the annular tube 2. The lower conical disk 68 is arranged in the inner cavity of the lower housing base 67. The central axis of the lower conical disk 68 extends out of the lower housing base 67 and is connected to the lower end of the spoiler strip 66. The lower bevel gear is arranged in the inner cavity of the lower housing base 67 and meshes with the lower conical disk 68. The lower synchronous gear 69 is coaxially connected to the lower bevel gear. The tooth pattern on the outer side surface of the second synchronous belt 63 meshes with the lower synchronous gear 69.

[0052] At the side wall of the lower part of the main housing 13, a second bevel gear 611, a third bevel gear 612 and a second operating rod 613 are installed. The second operating rod 613 is rotatably arranged on the side wall of the main housing 13. The third bevel gear is coaxially connected to the second operating rod 613. The second bevel gear 611 is coaxially connected to the female socket 610 and meshes with the third bevel gear. The lower synchronous gear 69 is coaxially connected with a male plug 614, and the male plug 614 extends out of the lower housing base 67. When the annular tube 2 moves to the extreme position, the male plug 614 is correspondingly plugged into the female socket 610 to adjust the rotation angle of the spoiler strip 66 through the second operating rod 613.

[0053] Both ends of the upper housing base 61 and the lower housing base 67 can be connected by two arc-shaped tubes, so that the four are connected in a ring shape. Guide wheels for guiding the second synchronous belt 63 can be arranged in the upper housing base 61, the lower housing base 67 and the arc-shaped tubes.

[0054] During use, the annular tube 2 can be controlled to move to the right by rotating the first operating rod 41. When it moves to the rightmost position, the male plug 614 is correspondingly plugged into the female socket 610. At this time, by manually rotating the second operating rod 613, components such as the upper conical disk 62, the second synchronous belt 63, the upper synchronous gear 64, the upper bevel gear 65, the lower conical disk 68, the lower bevel gear, and the lower synchronous gear 69 can be rotated, so as to change the deflection angle of the spoiler strip 66 relative to the length direction of the heat exchange tube 17 and improve the control of the heat exchange effect.

[0055] The above embodiments are merely examples for clear illustration and are not limitations on the implementation manners; it is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present technology.

Claims

1. An environmentally friendly high-efficiency heat exchanger for petrochemical industry, characterized by: It comprises a heat exchange shell (1) and an external piping system (3); The heat exchange shell (1) comprises an end shell (11), a conversion shell (12), an isolation plate (16), a heat exchange tube (17) and a main shell (13); the main shell (13) is a flat tube structure, the width of the main shell (13) is greater than its height, a cold end inlet (14) is provided on the side walls at both ends of the main shell (13), and a cold end outlet (15) is provided on the side wall in the middle of the main shell (13); end shells (11) are provided at both ends of the main shell (13), a hot end inlet and a hot end outlet are provided on the two end shells (11), the end shells (11) are round cover structures and are connected to the main shell (13) through the conversion shell (12); two isolation plates (16) are respectively provided in the two ends of the main shell (13), and a plurality of heat exchange tubes (17) are connected between the two isolation plates (16); the tube cavity of the heat exchange tube (17) is in communication with the hot end inlet and the hot end outlet; The external pipeline system (3) comprises a pressure pump (31), a solenoid valve (32) and a water pump (33); the water outlet of the pressure pump (31) is connected to two cold end inlets (14) via the solenoid valve (32), and the water inlet of the water pump (33) is connected to the cold end outlet (15); An annular tube (2) is arranged in the main shell (13), and the lower part of the annular tube (2) is connected to the cold end outlet (15). A plurality of through holes are arranged on the tube wall of the annular tube (2), and the higher the position of the through hole is, the larger the aperture of the through hole is; An outlet cover (5) is provided on the inner wall of the main shell (13), the outlet cover (5) covers the cold end outlet (15), and the cover cavity of the outlet cover (5) is communicated with the cold end outlet (15); the annular tube (2) is slidably matched with the outlet cover (5), and the tube cavity of the annular tube (2) is communicated with the cover cavity of the outlet cover (5); An outlet cover (5) is provided on the inner wall of the main shell (13), the outlet cover (5) covers the cold end outlet (15), and the cover cavity of the outlet cover (5) is communicated with the cold end outlet (15); the annular tube (2) is slidably matched with the outlet cover (5), and the tube cavity of the annular tube (2) is communicated with the cover cavity of the outlet cover (5); A transverse movement control mechanism (4) is arranged on the inner wall of the main housing (13), and the transverse movement control mechanism (4) comprises a first synchronous belt (45), a plurality of first synchronous wheels (44) and a plurality of transverse movement screws (46); the plurality of transverse movement screws (46) are arranged along the circumferential direction of the annular tube (2), and each transverse movement screw (46) vertically passes through the annular tube (2) and is threadedly engaged with the tube wall of the annular tube (2); the plurality of first synchronous wheels (44) are coaxially connected to one end of a corresponding transverse movement screw (46) and mesh with the first synchronous belt (45).

2. The environmentally friendly high-efficiency heat exchanger for petrochemical industry according to claim 1 is characterized in that: A plurality of folding baffles (51) are arranged on the side of the outlet cover (5); one end of the folding baffle (51) is fixedly connected to the end of the outlet cover (5), and the other end is connected to the tube wall of the annular tube (2); when the annular tube (2) slides along the length direction of the outlet cover (5), the folding baffle (51) is stretched or compressed.

3. The environmentally friendly high-efficiency heat exchanger for petrochemical industry according to claim 1 is characterized in that: The traverse control mechanism (4) further comprises a first operating rod (41), a first bevel gear (42) and a first bevel gear (43); the first operating rod (41) is rotatably arranged on the side wall of the main housing (13), the first bevel gear (42) is coaxially connected to the first operating rod (41), and the first bevel gear (43) is coaxially connected to one of the traverse screw rods (46) and meshes with the first bevel gear (42).

4. The environmentally friendly high-efficiency heat exchanger for petrochemical industry according to any one of claims 1 to 3, characterized in that: A spoiler mechanism (6) is provided on the inner ring side of the ring tube (2), the spoiler mechanism (6) comprising a spoiler belt (66), the spoiler belt (66) being a flat belt structure, the upper end of the spoiler belt (66) being connected to the top of the ring tube (2), and the lower end of the spoiler belt (66) being connected to the bottom of the ring tube (2).

5. The environmentally friendly high-efficiency heat exchanger for petrochemical industry according to claim 4 is characterized in that: The spoiler mechanism (6) comprises an upper shell seat (61), an upper cone disk (62), a second synchronous belt (63), an upper synchronous gear (64) and an upper bevel gear (65); the upper shell seat (61) is fixed to the top of the annular tube (2); the upper cone disk (62) is arranged in the inner cavity of the upper shell seat (61); the central axis of the upper cone disk (62) extends out of the upper shell seat (61) and is connected to the upper end of the spoiler belt (66); the upper bevel gear (65) is arranged in the inner cavity of the upper shell seat (61) and meshes with the upper cone disk (62); the upper synchronous gear (64) is coaxially connected to the upper bevel gear (65); the inner and outer side surfaces of the second synchronous belt (63) both have tooth patterns, and the tooth patterns on the inner side surface of the second synchronous belt (63) mesh with the upper synchronous gear (64).

6. The environmentally friendly high-efficiency heat exchanger for petrochemical industry according to claim 5 is characterized in that: The spoiler mechanism (6) further comprises a lower shell seat (67), a lower cone disk (68), a lower bevel gear, and a lower synchronous gear (69); the lower shell seat (67) is fixed to the bottom of the annular tube (2); the lower cone disk (68) is arranged in the inner cavity of the lower shell seat (67); the central axis of the lower cone disk (68) extends out of the lower shell seat (67) and is connected to the lower end of the spoiler belt (66); the lower bevel gear is arranged in the inner cavity of the lower shell seat (67) and meshes with the lower cone disk (68); the lower synchronous gear (69) is coaxially connected to the lower bevel gear; and the tooth pattern on the outer side surface of the second synchronous belt (63) meshes with the lower synchronous gear (69).

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