An efficient rectifying column for hydroxy fatty acid

Abstract

The application discloses a kind of acrylic hydroxy fat efficient rectifying tower, it is related to rectifying tower technical field, comprising: tower body, the support shaft is slidably connected in the top of the tower body, the outer surface of the support shaft is equidistantly fixedly connected with multiple trays.The application is processed by rectifying tower body to acrylic hydroxy fat, when support shaft loses support and falls naturally, the pressure ring moves down and contacts the baffle and applies impact force, the rebound force of the first spring can make the support shaft vibrate repeatedly under the support of the pressure ring, so that the tray moves up and down while impact vibration is achieved, so that it can promote the dispersion mixing caused by liquid jet in the sieve hole, contact mass transfer is carried out, the surface area of liquid is increased, the contact between liquid and ascending gas is accelerated, and it is also helpful to break the surface tension of liquid surface, promote mass transfer, improve the separation effect of acrylic hydroxy fat and mixture, realize the purpose of efficient fractionation.

Description

Technical Field

[0001] This invention relates to the field of distillation column technology, specifically to a high-efficiency hydroxyl acrylate distillation column. Background Technology

[0002] Hydroxy acrylates are an important chemical raw material used to prepare certain types of polymers and resins. In the production of hydroxy acrylates, a distillation column is a key piece of equipment used to separate and purify hydroxy acrylates from the reaction mixture.

[0003] In the existing technology, when the acrylic hydroxy ester distillation column is running, the trays inside the column body are always at a fixed height and are left to stand still. This standing still will cause the liquid mixture to stay on the trays for too long, which will reduce the heat transfer efficiency and make it easy for impurities and precipitates to accumulate, thus reducing the operating efficiency of the distillation column.

[0004] Therefore, we propose a high-efficiency hydroxyl acrylate distillation column to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency hydroxyl acrylate distillation column to solve the problems mentioned in the background art, which are that the liquid mixture will stay on the column for too long when the column is left to stand, resulting in a decrease in heat transfer efficiency and an easy accumulation of impurities and precipitates, thus reducing the operating efficiency of the distillation column.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency distillation column for hydroxyl acrylate, comprising: a column body, wherein a support shaft is slidably connected through the top of the column body, and a plurality of trays are fixedly connected at equal intervals on the outer surface of the support shaft, and a fixing ring is fixedly connected to the outer surface of the column body; a vibration assembly, wherein the vibration assembly is fixedly connected to the bottom of the column body, the vibration assembly includes a fixing plate, a plurality of first springs are uniformly fixedly connected to the top of the fixing plate, and a baffle is fixedly connected between the upper ends of the plurality of first springs; a drive assembly, wherein the drive assembly is fixedly connected to the top of the fixing ring, the drive assembly includes a plurality of connecting rods, a top plate is fixedly connected between the upper ends of the plurality of connecting rods, slide rails are symmetrically fixedly connected to the inner surface of the top plate, sliders are slidably connected to the inner surfaces of two slide rails, and a drive rod is fixedly connected between two sliders; and a lifting assembly, wherein the lifting assembly is fixedly connected to the lower end of the drive rod, and the lifting assembly includes a lifting frame.

[0007] Preferably, a wear-resistant plate is fixedly connected to the outer surface of the tower plate, the outer surface of the wear-resistant plate is in contact with the inner surface of the tower, an overflow plate is symmetrically fixedly connected to the top of the tower plate, and a downcomer is fixedly connected through the top of the tower body.

[0008] Preferably, a plurality of fixing rods are uniformly fixedly connected to the outer surface of the support shaft near the lower end face, and a pressure ring is fixedly connected between the end faces of the plurality of fixing rods. The pressure ring is located on the upper side of the baffle, and the pressure ring is the same size as the baffle.

[0009] Preferably, the upper end face of the support shaft is located on the upper side of the tower body, and a locking block is fixedly connected to the upper end face of the support shaft. The locking block has a locking groove on both outer surfaces.

[0010] Preferably, a bracket is fixedly connected to the top of the top plate, a motor is fixedly connected to the outer surface of the bracket, the output end of the motor slides through the bracket and extends to the other side, a rotating shaft is fixedly connected to the output end of the motor, and a turntable is fixedly connected to the end face of the rotating shaft.

[0011] Preferably, a first rotating block is rotatably connected to the outer surface of the turntable near the support, a connecting arm is fixedly connected to the end face of the first rotating block, and a second rotating block is fixedly connected to the outer surface of the connecting arm near the turntable. The second rotating block is rotatably connected to the drive rod.

[0012] Preferably, telescopic rods are symmetrically fixedly connected to the inner surfaces of both sides of the lifting frame, and a second spring is sleeved on the outer surface of each of the multiple telescopic rods. A first wedge block is fixedly connected between the end faces of the two sets of telescopic rods, and the first wedge block cooperates with the slot position.

[0013] Preferably, a tie rod is fixedly connected to the outer surface of the first wedge block, the tie rod slides through the lifting frame and extends to the outside, and a second wedge block is fixedly connected to the end face of the tie rod.

[0014] Preferably, the bottom of the top plate is symmetrically and fixedly connected to a connecting seat, the inner surface of the connecting seat is rotatably connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to a roller, and the roller is positioned to cooperate with the second wedge block.

[0015] Preferably, a first pipe is fixedly connected to the outer surface of the tower body, and a second pipe is fixedly connected to the outer surface of the other side of the tower body. Both the first pipe and the second pipe are connected to the tower body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When acrylate is distilled through the column, the support shaft loses support and falls naturally. The pressure ring moves down and contacts the baffle, applying an impact force. Through the rebound force of the first spring, the support shaft can vibrate repeatedly under the support of the pressure ring. This causes the column plate to move up and down while impacting and vibrating, which promotes the dispersion and mixing of the liquid through the sieve holes, facilitates contact mass transfer, increases the surface area of ​​the liquid, accelerates the contact between the liquid and the rising gas, and also helps to break the surface tension of the liquid, promote mass transfer, improve the separation effect of acrylate and the mixture, and achieve the purpose of efficient fractionation.

[0018] 2. By using the overflow plate and downcomer together, the descent speed and distribution of the liquid can be affected, thereby affecting the uniformity and separation effect of the liquid phase in the tower. With the setting of wear-resistant plates, the tower plates will move in close contact with the inner wall of the tower. The use of wear-resistant plates can protect the tower plates and extend their service life.

[0019] 3. The starting motor can drive the turntable to rotate. The cooperation between the slide rail and the slider can restrict the drive rod to linear movement. The up-and-down linear reciprocating motion of the drive rod can drive the lifting frame to move up and down. When the second wedge block moves up, the roller can drive the first wedge block to be pulled out of the slot. At this time, the support shaft will fall freely and vibrate the tower plate. Then, by the up-and-down reciprocating movement of the lifting frame, the support shaft can be continuously lifted and released to fall freely, which improves the automation level of the device. Attached Figure Description

[0020] Figure 1 This is a perspective view of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0021] Figure 2 This is a bottom view of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0022] Figure 3 This is a cross-sectional view of the column structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0023] Figure 4 This is a schematic diagram of the pressure ring structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0024] Figure 5 This is a schematic diagram of the tray structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0025] Figure 6 This is a schematic diagram of the vibration assembly structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0026] Figure 7 This is a schematic diagram of the drive component structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0027] Figure 8 This is a schematic diagram of the roller structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention;

[0028] Figure 9 This is a schematic diagram of the lifting component structure of a high-efficiency hydroxyl acrylate distillation column according to the present invention.

[0029] In the picture:

[0030] 1. Tower body; 2. Support shaft; 3. Vibration assembly; 301. Fixing plate; 302. First spring; 303. Baffle; 4. Fixing ring; 5. Drive assembly; 501. Connecting rod; 502. Top plate; 503. Bracket; 504. Motor; 505. Rotating shaft; 506. Turntable; 507. First rotating block; 508. Connecting arm; 509. Second rotating block; 510. Drive rod; 511. Slider; 51 2. Slide rail; 513. Connecting seat; 514. Roller; 6. Lifting assembly; 601. Lifting frame; 602. Telescopic rod; 603. Second spring; 604. First wedge block; 605. Pull rod; 606. Second wedge block; 7. Fixing rod; 8. Pressure ring; 9. Locking block; 10. Locking groove; 11. First pipe; 12. Second pipe; 13. Tower plate; 14. Wear-resistant plate; 15. Overflow plate; 16. Downcomer. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-9The present invention provides a technical solution: a high-efficiency distillation column for hydroxyl acrylate, comprising: a column body 1, a support shaft 2 slidably connected through the top of the column body 1, a plurality of trays 13 fixedly connected at equal intervals on the outer surface of the support shaft 2, and a fixing ring 4 fixedly connected to the outer surface of the column body 1; a vibration assembly 3, the vibration assembly 3 being fixedly connected to the bottom of the column body 1, the vibration assembly 3 including a fixing plate 301, a plurality of first springs 302 being uniformly fixedly connected to the top of the fixing plate 301, and baffles 3 being fixedly connected between the upper surfaces of the plurality of first springs 302. 03; Drive assembly 5, drive assembly 5 is fixedly connected to the top of the fixed ring 4, drive assembly 5 includes multiple connecting rods 501, top plate 502 is fixedly connected between the upper end faces of multiple connecting rods 501, slide rails 512 are symmetrically fixedly connected to the inner surface of the top plate 502, sliders 511 are slidably connected to the inner surfaces of the two slide rails 512, drive rod 510 is fixedly connected between the two sliders 511; Lifting assembly 6, lifting assembly 6 is fixedly connected to the lower end face of the drive rod 510, lifting assembly 6 includes lifting frame 601.

[0033] like Figure 3 and Figure 5 As shown, a wear-resistant plate 14 is fixedly connected to the outer surface of the tray 13. The outer surface of the wear-resistant plate 14 is in contact with the inner surface of the tower body 1. An overflow plate 15 is symmetrically fixedly connected to the top of the tray 13. A downcomer 16 is fixedly connected through the top of the tower body 1. Through the use of the tray 13, the small holes on the tray 13 help to form more contact area between the liquid and the gas, accelerating the separation of distillate substances. At the same time, through the cooperation of the overflow plate 15 and the downcomer 16, the backflow liquid is collected for further fractionation. The use of the downcomer 16 can affect the descent speed and distribution of the liquid, thereby affecting the uniformity and separation effect of the liquid phase in the tower. When the tray 13 is moved up and down by the support shaft 2, the tray 13 will move the wear-resistant plate 14 in close contact with the inner wall of the tower body 1. The use of the wear-resistant plate 14 can protect the tray 13, avoid direct friction during use, and improve the service life of the tray 13.

[0034] like Figure 4 and Figure 6As shown, multiple fixing rods 7 are uniformly fixedly connected to the outer surface of the support shaft 2 near the lower end face. A pressure ring 8 is fixedly connected between the end faces of the multiple fixing rods 7. The pressure ring 8 is located on the upper side of the baffle 303. The pressure ring 8 and the baffle 303 are the same size. After the support shaft 2 is lifted to a high position by the cooperation of the drive assembly 5 and the lifting assembly 6, the support shaft 2 loses support and falls naturally. The support shaft 2 will drive the pressure ring 8 to move down through the connection of the fixing rods 7. The pressure ring 8 will contact the baffle 303 and apply an impact force. After the baffle 303 is subjected to the downward impact force, the first spring 302 will be compressed. Then, through the rebound force of the first spring 302, the support shaft 2 can be repeatedly vibrated under the support of the pressure ring 8. This causes the tray 13 to move up and down while impacting and vibrating, which can promote the dispersion and mixing of the liquid by spraying it into the sieve holes, carry out contact mass transfer, increase the surface area of ​​the liquid, accelerate the contact between the liquid and the rising gas, and also help to break the surface tension of the liquid surface, promote mass transfer, improve the separation effect, and achieve the purpose of efficient fractionation.

[0035] like Figure 4 As shown, the upper end face of the support shaft 2 is located on the upper side of the tower body 1. A locking block 9 is fixedly connected to the upper end face of the support shaft 2. The outer surfaces of both sides of the locking block 9 are provided with locking grooves 10. The locking grooves 10 can be used in conjunction with the use of the first wedge block 604 to clamp and fix the locking block 9.

[0036] like Figure 7 As shown, a bracket 503 is fixedly connected to the top of the top plate 502. A motor 504 is fixedly connected to the outer surface of the bracket 503. The output end of the motor 504 slides through the bracket 503 and extends to the other side. A rotating shaft 505 is fixedly connected to the output end of the motor 504. A turntable 506 is fixedly connected to the end face of the rotating shaft 505. When the drive support shaft 2 moves up and down, starting the motor 504 can drive the rotating shaft 505 to rotate. The rotation of the rotating shaft 505 drives the turntable 506 to rotate accordingly.

[0037] like Figure 7As shown, a first rotating block 507 is rotatably connected to the outer surface of the turntable 506 near the bracket 503. A connecting arm 508 is fixedly connected to the end face of the first rotating block 507. A second rotating block 509 is fixedly connected to the outer surface of the connecting arm 508 near the turntable 506. The second rotating block 509 is rotatably connected to the drive rod 510. When the turntable 506 rotates, the connecting arm 508 can be driven to move through the connection of the first rotating block 507. The connecting arm 508 will drive the drive rod 510 to move through the connection of the second rotating block 509. When the drive rod 510 moves under force, it will move along the slide rail 512 through the connection of the slider 511. The cooperation between the slide rail 512 and the slider 511 can restrict the drive rod 510 to linear movement. Therefore, the circular motion of the turntable 506 can be converted into the linear reciprocating motion of the drive rod 510. The up-and-down linear reciprocating motion of the drive rod 510 can drive the lifting frame 601 to move up and down.

[0038] like Figure 9 As shown, telescopic rods 602 are symmetrically fixedly connected to the inner surfaces of both sides of the lifting frame 601. Second springs 603 are sleeved on the outer surfaces of multiple telescopic rods 602. First wedge blocks 604 are fixedly connected between the end faces of the two sets of telescopic rods 602. The first wedge blocks 604 are matched with the slots 10. When the lifting frame 601 moves down, the lifting frame 601 drives the first wedge blocks 604 to move downward. The lower inclined surface of the first wedge blocks 604 contacts the slot 9, which will cause the first wedge blocks 604 to be compressed. The second springs 603 will contract. After the first wedge blocks 604 continue to move down to the slots 10, the rebound force of the second springs 603 can drive the first wedge blocks 604 to pop out and lock into the slots 10, so that the slots 9 are clamped in the inner position of the lifting frame 601. When the lifting frame 601 rises, it can drive the support shaft 2 to move upward.

[0039] like Figure 9 As shown, a pull rod 605 is fixedly connected to the outer surface of the first wedge block 604. The pull rod 605 slides through the lifting frame 601 and extends to the outside. A second wedge block 606 is fixedly connected to the end face of the pull rod 605. When the lifting frame 601 moves the locking block 9 and the support shaft 2 upward, the lifting frame 601 moves the second wedge block 606 on the outside to the lower side of the top plate 502.

[0040] like Figure 8As shown, a connecting seat 513 is symmetrically fixedly connected to the bottom of the top plate 502. A rotating rod is rotatably connected to the inner surface of the connecting seat 513, and a roller 514 is fixedly connected to the outer surface of the rotating rod. The roller 514 is positioned to cooperate with the second wedge block 606. When the second wedge block 606 moves upward, the inclined surface of the second wedge block 606 will contact the roller 514. When the roller 514 is contacted and pressed, it rolls. Through the contact of the roller 514 with the inclined surface of the second wedge block 606, the second wedge block 606 can be pushed outward. After the second wedge block 606 is pushed outward, the first wedge block 604 can be pulled out of the slot 10 through the connection of the pull rod 605. After the first wedge block 604 is separated from the slot 10, the locking block 9 loses its support. At this time, the support shaft 2 will fall freely and vibrate the tower plate 13. Then, by the up-and-down reciprocating movement of the lifting frame 601, the support shaft 2 can be continuously lifted and released to fall freely, realizing the purpose of automated continuous operation.

[0041] like Figure 1 and Figure 2 As shown, a first pipe 11 is fixedly connected to the outer surface of the tower body 1, and a second pipe 12 is fixedly connected to the outer surface of the other side of the tower body 1. Both the first pipe 11 and the second pipe 12 are connected to the tower body 1. When the acrylic hydroxyl ester is distilled through the tower body 1, the material is fed in and out through the cooperation of the first pipe 11 and the second pipe 12.

[0042] The operating method and working principle of this device are as follows: When distilling hydroxyl acrylate through column 1, the feed and discharge are carried out through the cooperation of the first pipe 11 and the second pipe 12. The use of the tray 13, with its small holes, helps to create a larger contact area between the liquid and gas, accelerating the separation of distillate substances. Simultaneously, the cooperation of the overflow plate 15 and the downcomer 16 can affect the descent speed and distribution of the liquid, thereby affecting the uniformity and separation effect of the liquid phase within the column. The wear-resistant plate 14, installed on the tray 13, moves the tray 13, causing it to adhere closely to the inner wall of the column 1. The wear-resistant plate 14 protects the tray 13 and improves its performance. The lifespan is determined by the fact that the starting motor 504 can drive the rotating shaft 505 to rotate, which in turn drives the turntable 506 to rotate. The sliding rail 512 and the slider 511 are configured to restrict the drive rod 510 to linear movement, thus converting the circular motion of the turntable 506 into the linear reciprocating motion of the drive rod 510. This up-and-down linear reciprocating motion of the drive rod 510 drives the lifting frame 601 to move up and down. When the lifting frame 601 moves downward, the lower inclined surface of the first wedge block 604 contacts the locking block 9, causing the first wedge block 604 to be compressed. This causes the second spring 603 to contract. After the first wedge block 604 continues to move downward to the position of the locking slot 10, the second spring 603... The rebound force of 03 can cause the first wedge block 604 to pop out and lock into the slot 10, so that the locking block 9 is clamped in the inner position of the lifting frame 601. When the lifting frame 601 rises, it can drive the support shaft 2 to move upward. When the second wedge block 606 moves upward, the inclined surface of the second wedge block 606 will contact the roller 514. Through the contact of the roller 514 with the inclined surface of the second wedge block 606, the second wedge block 606 can be pushed outward. The first wedge block 604 can be pulled out of the slot 10 through the connection of the pull rod 605. After the first wedge block 604 separates from the slot 10, the locking block 9 loses its support. At this time, the support shaft 2 will fall freely and vibrate the tower plate 13. Then, through the lifting frame The reciprocating movement of 601 continuously raises and releases the support shaft 2, achieving automated continuous operation. When the support shaft 2 loses support and falls naturally, the pressure ring 8 moves down and contacts the baffle 303, applying an impact force. Through the rebound force of the first spring 302, the support shaft 2 can vibrate repeatedly under the support of the pressure ring 8, causing the tray 13 to vibrate while moving up and down. This promotes the dispersion and mixing of the liquid through the sieve holes, facilitates contact mass transfer, increases the surface area of ​​the liquid, accelerates the contact between the liquid and the rising gas, and also helps to break the surface tension of the liquid surface, promotes mass transfer, improves the separation effect, and achieves the purpose of efficient fractionation.

[0043] The wiring diagram of motor 504 in this invention is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of motor 504 will not be explained in detail.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency hydroxyl acrylate distillation column, characterized in that, include: The tower body (1) has a support shaft (2) that is slidably connected through the top of the tower body (1). Multiple tower plates (13) are fixedly connected at equal intervals on the outer surface of the support shaft (2). A fixing ring (4) is fixedly connected to the outer surface of the tower body (1). Vibration assembly (3), the vibration assembly (3) is fixedly connected to the bottom of the tower body (1), the vibration assembly (3) includes a fixing plate (301), a plurality of first springs (302) are uniformly fixedly connected to the top of the fixing plate (301), and a baffle (303) is fixedly connected between the upper surfaces of the plurality of first springs (302). A drive assembly (5) is fixedly connected to the top of a fixed ring (4). The drive assembly (5) includes multiple connecting rods (501). A top plate (502) is fixedly connected between the upper surfaces of the multiple connecting rods (501). Slide rails (512) are symmetrically fixedly connected to the inner surface of the top plate (502). Slider blocks (511) are slidably connected to the inner surfaces of the two slide rails (512). A drive rod (510) is fixedly connected between the two sliders (511). Lifting assembly (6), which is fixedly connected to the lower end face of drive rod (510), and includes lifting frame (601). The upper end face of the support shaft (2) is located on the upper side of the tower body (1). A locking block (9) is fixedly connected to the upper end face of the support shaft (2). The locking block (9) has a locking groove (10) on both outer surfaces. The inner surfaces of both sides of the lifting frame (601) are symmetrically fixed with telescopic rods (602), and the outer surfaces of the multiple telescopic rods (602) are fitted with second springs (603). The end faces of the two sets of telescopic rods (602) are fixedly connected with first wedge blocks (604), and the first wedge blocks (604) are matched with the slots (10). A pull rod (605) is fixedly connected to the outer surface of the first wedge block (604). The pull rod (605) slides through the lifting frame (601) and extends to the outside. A second wedge block (606) is fixedly connected to the end face of the pull rod (605). The bottom of the top plate (502) is symmetrically fixedly connected to a connecting seat (513), and a rotating rod is rotatably connected to the inner surface of the connecting seat (513). A roller (514) is fixedly connected to the outer surface of the rotating rod, and the roller (514) is in position to cooperate with the second wedge block (606).

2. The high-efficiency hydroxyl acrylate distillation column according to claim 1, characterized in that: A wear-resistant plate (14) is fixedly connected to the outer surface of the tower plate (13). The outer surface of the wear-resistant plate (14) is in contact with the inner surface of the tower body (1). An overflow plate (15) is symmetrically fixedly connected to the top of the tower plate (13). A downcomer (16) is fixedly connected through the top of the tower body (1).

3. The high-efficiency hydroxyl acrylate distillation column according to claim 2, characterized in that: Multiple fixing rods (7) are uniformly fixedly connected to the outer surface of the support shaft (2) near the lower end face. A pressure ring (8) is fixedly connected between the end faces of the multiple fixing rods (7). The pressure ring (8) is located on the upper side of the baffle (303). The pressure ring (8) is the same size as the baffle (303).

4. The high-efficiency hydroxyl acrylate distillation column according to claim 3, characterized in that: A bracket (503) is fixedly connected to the top of the top plate (502). A motor (504) is fixedly connected to the outer surface of the bracket (503). The output end of the motor (504) slides through the bracket (503) and extends to the other side. A rotating shaft (505) is fixedly connected to the output end of the motor (504). A turntable (506) is fixedly connected to the end face of the rotating shaft (505).

5. The high-efficiency hydroxyl acrylate distillation column according to claim 4, characterized in that: The turntable (506) is rotatably connected to a first rotating block (507) on the outer surface near the bracket (503). A connecting arm (508) is fixedly connected to the end face of the first rotating block (507). A second rotating block (509) is fixedly connected to the outer surface of the connecting arm (508) near the turntable (506). The second rotating block (509) is rotatably connected to the drive rod (510).

6. The high-efficiency hydroxyl acrylate distillation column according to claim 5, characterized in that: The outer surface of the tower body (1) is fixedly connected to a first pipe (11), and the outer surface of the other side of the tower body (1) is fixedly connected to a second pipe (12). Both the first pipe (11) and the second pipe (12) are connected to the tower body (1).

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