A heat exchanger tube bundle installation

Abstract

The present invention discloses a heat exchanger tube bundle erection device, which includes a bottom plate component, a sliding component, a main body stress-bearing component, and a support component; the bottom plate component includes a bottom plate, with a dovetail groove guide rail provided on one side of the bottom plate along the length direction, a notch provided in the middle on the other side, and first rib plates respectively provided at both ends of the notch; there are 2 sliding components provided on the bottom plate component, the sliding component includes a slider, a sliding plate is provided at the top of the slider, and a channel steel and a side plate are provided on the sliding plate; the built-in ball of the slider is slidably connected with the dovetail groove guide rail; the main body stress-bearing component includes an I-beam, one end of the I-beam is fixed by the first rib plate, and a circular slideway is welded on the upper end surface of the I-beam; second rib plates are welded on the two outer side surfaces of the I-beam, and a jack is placed on the bottom plate; two support components are provided on the upper part of the I-beam near the bottom plate end. The heat exchanger tube bundle erection device of the present invention is applicable to the process of threading heat exchange tubes in the heat exchanger tube bundle erection with a tube sheet outer diameter of Φ400mm ≤ tube sheet outer diameter ≤ Φ2400mm, which is safe, efficient, time-saving and labor-saving.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat exchanger tube bundle scaffolding, and relates to a heat exchanger tube bundle scaffolding device, specifically to a heat exchanger tube bundle threading and heat exchange tube scaffolding device, which is particularly suitable for the heat exchanger tube bundle scaffolding process with a tube sheet outer diameter of Φ400mm ≤ tube sheet outer diameter ≤ Φ2400mm. Background Art

[0002] During the manufacturing process of heat exchanger equipment, the tube bundle scaffolding process is directly related to whether the tube bundle can be easily inserted into the heat exchanger shell. If the traditional tube bundle scaffolding method is used, several baffle plates in the tube bundle are not concentric with the center of the tube sheet, and it will be very difficult for the heat exchange tubes to penetrate the baffle plates and the tube sheet, and it is also very difficult for the tube bundle to penetrate into the heat exchanger shell; at the same time, when scaffolding the tube bundle, multiple rib plates need to be welded to support and fix the tube sheet; in addition, during the process of threading the heat exchange tubes, if the heat exchange tubes are difficult to penetrate the baffle plates and the tube sheet, a wooden hammer needs to be used to tap one end of the heat exchange tube to make the heat exchanger tube penetrate. The tapping with the wooden hammer will cause the tube bundle to shake and damage the tapped end of the heat exchange tube. It can be seen that the traditional tube bundle scaffolding method greatly increases the labor intensity and working hours of workers, increases the manufacturing cost, and there are also potential safety hazards due to the shaking of the tube bundle.

[0003] Therefore, in the heat exchanger tube bundle scaffolding process, a safe, efficient, time-saving and labor-saving tube bundle scaffolding device is needed to reduce the labor intensity of workers, lower the manufacturing cost of enterprises, and eliminate the potential safety hazards of the overall tube bundle shaking during the heat exchange tube threading process in the manufacturing process. Summary of the Invention

[0004] The purpose of the present invention is to provide a safe, efficient, time-saving and labor-saving heat exchanger tube bundle scaffolding device, which is suitable for the heat exchanger tube bundle threading and heat exchange tube process with a tube sheet outer diameter of Φ400mm ≤ tube sheet outer diameter ≤ Φ2400mm.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A heat exchanger tube bundle installation device, comprising a bottom plate component, a sliding component, a main body stress-bearing component, and a support component; the bottom plate component includes a bottom plate 5, a dovetail groove guide rail 6 is provided on one side of the bottom plate 5 along the length direction, a notch is provided in the middle of the other side of the bottom plate 5, and first rib plates 7 are respectively provided at both ends of the notch; 2 sliding components are provided on the bottom plate component, the sliding component includes a slider 1, a sliding plate 2 is provided at the top of the slider 1, and a channel steel 3 and a side plate 4 are provided on the sliding plate 2; the built-in ball of the slider 1 is slidably connected with the dovetail groove guide rail 6, and the slider 1 drives the sliding component to slide along the dovetail groove guide rail 6; the main body stress-bearing component includes an I-beam 12, one end of the I-beam 12 is fixed by the first rib plate 7, and a circular slideway 14 is welded on the upper end surface of the I-beam 12 to facilitate the baffle plate to slide on the I-beam 12; on the two outer sides of the I-beam 12, second rib plates 13 are symmetrically welded at the front, middle, and rear respectively. A jack is placed on the bottom plate 5, and a tube sheet is placed above the jack. The jack is used to support the second rib plate 13 to adjust the levelness and height of the I-beam 12, so as to realize the adjustment of the height of the tube sheet; two of the support components are provided at the upper part of the I-beam 12 near the bottom plate 5; the support component includes a first support plate 8 arranged obliquely, the lower end of the first support plate 8 is fixed to the I-beam 12 by a fastener, the top of the first support plate 8 is provided with a second support plate 9, the second support plate 9 is connected to one end of a threaded pin 11, the other end of the threaded pin 11 faces the channel steel 3 and is inserted into the trapezoidal hole of the support disc 10, and the threaded pin 11 does not penetrate out of the support disc 10.

[0007] The material of the bottom plate 5 is carbon steel or stainless steel. The thickness δ of the bottom plate 5 is 25 - 35 mm, the width is 550 - 650 mm, and the length is 2100 - 2200 mm.

[0008] The length of the notch on the bottom plate 5 is 400 - 500 mm, and the width is 150 - 250 mm. The length of the notch is determined by the width of the I-beam 12.

[0009] The material of the dovetail groove guide rail 6 is carbon steel or stainless steel. The thickness δ of the dovetail groove guide rail 6 is 20 - 24 mm, the width is 20 - 26 mm, and the length is 1900 - 2100 mm.

[0010] According to the dovetail groove guide rail 6, M6 - M10 threaded holes are arranged on the bottom plate 5, and M6 - M10 socket head cap fasteners are used to fix the bottom plate 5 and the dovetail groove guide rail 6. Specifically, M6×25 socket head cap fasteners are used to fix the bottom plate 5 and the dovetail groove guide rail 6.

[0011] The material of the first rib plate 7 is carbon steel or stainless steel. The thickness δ of the first rib plate 7 is 15 - 25 mm, the width is 150 - 250 mm, and the length is 350 - 450 mm.

[0012] The described first rib plate 7 is fixedly welded to the notch of the bottom plate 5.

[0013] The described jack is a split-type hydraulic jack.

[0014] The material of the described slider 1 is steel No. 55. The thickness δ of the described slider 1 is 28 - 32 mm, the width is 68 - 72 mm, and the length is 82 - 86 mm. Specifically, the thickness δ of the described slider 1 is 30.5 mm, the width is 70 mm, and the length is 84 mm.

[0015] The material of the described sliding plate 2 is carbon steel or stainless steel. The thickness δ of the described sliding plate 2 is 15 - 25 mm, the length is 380 - 420 mm, and the width is 230 - 270 mm; specifically, the thickness δ of the described sliding plate 2 is 20 mm, the length is 400 mm, and the width is 250 mm.

[0016] Each slider 1 is provided with at least two threaded holes and the number of threaded holes is a multiple of 2. The threaded holes are symmetrically distributed on both sides of the dovetail groove guide 6; corresponding to the threaded holes on the slider 1, the sliding plate 2 is provided with trapezoidal holes to facilitate the fasteners (such as bolts) to sink into the holes; the fasteners pass through the trapezoidal holes of the sliding plate 2 and the threaded holes of the slider 1 and are tightened to realize the fixation of the slider 1 and the sliding plate 2.

[0017] Preferably, the number of the described dovetail groove guides 6 is 2; at the bottom of each sliding plate 2, there is 1 slider 1 corresponding to each dovetail groove guide 6. The built-in ball of the slider 1 is slidably connected with the dovetail groove guide 6. The sliders 1 provided on the sliding plate 2 corresponding to the two tracks move simultaneously to form an overall slide, enhancing the load-bearing capacity and stability of the track.

[0018] As one specific solution of the technical solution of the present invention, each slider 1 is provided with 4 - 8 threaded holes and the number of threaded holes is a multiple of 2. The threaded holes are symmetrically distributed on both sides of the dovetail groove guide 6; corresponding to the threaded holes on the slider 1, the sliding plate 2 is provided with trapezoidal holes; the fasteners pass through the trapezoidal holes of the sliding plate 2 and the threaded holes of the slider 1 to realize the fixed connection between the slider 1 and the sliding plate 2.

[0019] As one specific solution of the technical solution of the present invention, the threaded holes on the slider 1 are M8 - M12 threaded holes; M8 - M12 hexagon socket head cap screws (hexagon socket head bolts) are used to pass through the trapezoidal holes on the sliding plate 2 and the threaded holes on the slider 1, and the hexagon socket head bolts are tightened to fix the sliding plate 2 and the slider 1.

[0020] As one specific solution of the technical solution of the present invention, the trapezoidal hole on the sliding plate 2 is a counterbore, which is composed of a round hole with an upper inner diameter of Φ10 - 16 mm and a round hole with a lower inner diameter of Φ8 - 12 mm; among them, the round hole with an inner diameter of Φ12 - 16 mm has a depth of 9 - 11 mm, and the round hole with an inner diameter of Φ8 - 10 mm has a depth of 9 - 11 mm. More specifically, the trapezoidal hole on the sliding plate 2 is composed of a round hole with an upper inner diameter of Φ14 mm and a round hole with a lower inner diameter of Φ9.5 mm; among them, the round hole with an inner diameter of Φ14 mm has a depth of 10 mm, and the round hole with an inner diameter of Φ9.5 mm has a depth of 10 mm.

[0021] As one specific solution of the technical solution of the present invention, the slider 1 and the sliding plate 2 are connected by M8×25 socket head cap fasteners.

[0022] There are 2 - 4 threaded through holes on the sliding plate 2, and each threaded through hole is equipped with a fastener. The fastener passes through the sliding plate 2 and abuts against the bottom plate 5 to lock the sliding plate.

[0023] As one specific solution of the technical solution of the present invention, there are 2 - 4 M10 threaded through holes on the sliding plate 2, and each threaded through hole is equipped with M10 - M16 socket head cap fasteners. The fastener passes through the sliding plate 2 and abuts against the bottom plate 5 to lock the sliding plate.

[0024] The channel steel 3 and the side plate 4 are respectively welded on the sliding plate 2; the channel steel 3 is located inside, and the side plate 4 is located outside; intermittent welding is used between the channel steel 3 and the side plate 4 to prevent welding deformation and at the same time strengthen the overall strength of the channel steel 3 and the side plate 4. In the present invention, through the combination of the channel steel and the side plate, the effect of the channel steel under lateral force is better than that of the plate under lateral force. Under the action of the same force, the side plate is more likely to bend and deform. If it is designed as a whole plate, the thickness of the side plate will be greater than the thickness of the channel steel, increasing the weight of the device, which is not conducive to convenient use. At the same time, the requirement for the track bearing capacity is increased, increasing the cost. The channel steel 3 is used to fix the entire tube plate and prevent the tube plate from shaking, and the side plate 4 is used to adjust the verticality of the tube plate. The channel steel 3 is subjected to greater force than the side plate 4. Considering that the channel steel has a better force-bearing effect than the side plate, the channel steel 3 is arranged inside.

[0025] The material of the channel steel 3 is carbon steel or stainless steel, and the model is 10 - 63c. Specifically, channel steel 20a (cross-sectional dimensions 200×73×7) can be selected. The material of the side plate 4 is carbon steel or stainless steel. The thickness δ of the side plate 4 is 20 - 35 mm, the width is 190 - 210 mm, and the length is 1400 - 1600 mm; specifically, the thickness δ of the side plate 4 is 20 mm, the width is 200 mm, and the length is 1500 mm.

[0026] The channel steel 3 has 6 to 9 vertical (perpendicular to the horizontal plane) first oblong holes evenly distributed in the vertical direction. A screw is used to pass through the oblong holes of the channel steel 3 and the tube sheet to fix the tube sheet to prevent the tube bundle from shaking when the heat exchange tube is inserted. In order to be applicable to heat exchangers with a larger range of tube sheet outer diameters and expand the wide range of use of the device, preferably, the channel steel 3 has 6 vertical first oblong holes evenly distributed in the vertical direction.

[0027] The side plate 4 has 7 to 11 horizontal (parallel to the horizontal plane) second oblong holes evenly distributed in the vertical direction. Bolts are passed through the oblong holes on the side plate 4 and tightened (nuts are provided on both sides of the side plate 4, the bolts pass through the nuts, the side plate 4, and the nuts, and the bolts are tightened to hold the tube plate) to hold the tube plate to adjust the verticality of the tube plate. In order to be suitable for heat exchangers with a larger range of tube plate outer diameters, the verticality of the tube plate can also be adjusted, which expands the versatility of the device. Preferably, the side plate 4 has 7 horizontal second oblong holes evenly distributed in the vertical direction.

[0028] According to the common outer diameter size of the tube sheet, except for the two first oblong holes at the bottom and one first oblong hole at the top of the channel steel 3, the other first oblong holes are staggered with the two adjacent second oblong holes on the side plate 4 to disperse the force.

[0029] The width of the first oblong hole is 16-20 mm, preferably 18 mm; the width of the second oblong hole is 24-28 mm, preferably 26 mm.

[0030] The I-beam 12 is made of carbon steel or stainless steel, has a width of 400-500 mm, a height of 380-520 mm, and a length L of 5900-6100 mm.

[0031] Two to four third vertical oblong holes are respectively provided on both sides of one end of the I-beam 12, and two to four fourth horizontal oblong holes are provided on the first rib plate 7, and the I-beam 12 and the first rib plate 7 are connected by fasteners. The widths of the third oblong holes and the fourth oblong holes are the same, which is 24 to 28 mm, and M24 to M28 fasteners (i.e., M24 to M28 bolts and M24 to M28 nuts) can be used to fix the I-beam 12 and the first rib plate 7. Specifically, the I-beam 12 is placed inside the two first rib plates 7, and the I-beam 12 and the first rib plate 7 are connected by fasteners.

[0032] On both upper parts of the two sides of the near-bottom end 5 of the I-beam 12, horizontal fifth oblong holes are respectively provided; considering that in heat exchangers of different specifications, the distances between the tube sheet and the first baffle are different, if the distance is controlled too far, the support components will interfere with the first baffle, therefore, taking the center of the fifth oblong hole as the reference, the distance from the fifth oblong hole to the near-bottom end 5 of the I-beam 12 is 100 - 200 mm; the width of the fifth oblong hole is 24 - 28 mm and the length is 450 - 550 mm.

[0033] The material of the second rib plate 13 is carbon steel or stainless steel; the thickness δ of the second rib plate 13 is 25 - 35 mm, the width is 95 - 105 mm, and the length is 95 - 105 mm.

[0034] The second rib plate 13 is welded to the outer side of the I-beam 12.

[0035] The material of the first support plate 8 is carbon steel or stainless steel; the thickness δ of the first support plate 8 is 15 - 25 mm, the width is 95 - 105 mm, and the length is 850 - 950 mm.

[0036] One or two round holes are provided at the lower end of the first support plate 8; the round holes at the lower end of the first support plate 8 and the fifth oblong holes of the I-beam 12 are connected by fasteners; the other end of the first support plate 8 is provided with a sixth oblong hole parallel to the length direction of the first support plate. Place the first support plate 8 outside the I-beam 12, bolts pass through the round holes of the first support plate 8 and the fifth oblong holes of the I-beam 12, and nuts are screwed in to connect the first support plate 8 and the I-beam 12, and the support components can move left and right along the oblong holes to adjust to match tube sheets of different thickness dimensions.

[0037] The diameter Φ of the round holes on the first support plate 8 is 24 - 28 mm; the width of the sixth oblong hole is 16 - 20 mm.

[0038] The material of the second support plate 9 is carbon steel or stainless steel; the thickness δ of the second support plate 9 is 15 - 25 mm, the width is 95 - 105 mm, and the length is 95 - 105 mm.

[0039] The second support plate 9 is provided with a vertical seventh oblong hole, and the seventh oblong hole of the second support plate 9 and the sixth oblong hole of the first support plate 8 are connected by fasteners to fix the second support plate 9 at the top of the first support plate 8. The oblong hole on the second support plate 9 is perpendicular to the horizontal plane, facilitating the fine adjustment of the vertical support for the tube sheet.

[0040] The width of the seventh oblong hole is 16 - 20 mm.

[0041] The threaded pin 11 is horizontally installed; the threaded pin 11 is welded and connected to the second support plate 9.

[0042] The material of the threaded pin 11 is carbon steel or stainless steel; the outer diameter of the threaded pin 11 is Φ26 - Φ30, and the length is 68 - 72 mm; the threaded pin 11 is provided with an external thread of M16 - M20, and the thread length is 58 - 62 mm.

[0043] The material of the support plate 10 is carbon steel or stainless steel; the thickness δ of the support plate 10 is 28 - 32 mm, and the outer diameter Φ is 100 - 150 mm.

[0044] The trapezoidal hole of the support plate 10 is located at the center of the support plate 10, and the diameter of the round hole on the side close to the I-beam 12 is smaller than the diameter of the round hole on the side close to the channel steel 3; in the present invention, the center of the support plate is designed as a trapezoidal hole, and this trapezoidal hole is a counterbore, which is convenient for sinking the threaded pin 11 into the hole, avoiding the design of a through hole that causes the threaded pin 11 to expose outside the support plate (i.e., on the side close to the channel steel 3), and it is easy to scratch the tube sheet during use. Specifically, the trapezoidal hole is composed of a round hole with a diameter of Φ28 - 32 mm and a round hole with a diameter of Φ16 - 20 mm, and the diameter of the round hole on the side close to the I-beam 12 is smaller than the diameter of the round hole close to the channel steel 3; among them, the hole depth of the hole with a diameter of Φ16 - 20 mm is 18 - 20 mm, and the hole depth of the round hole with a diameter of Φ28 - 32 mm is 10 - 12 mm.

[0045] The support plate 10 is fastened to the threaded pin 11 by a nut on the inner side (i.e., the side close to the I-beam 12).

[0046] The support plate 10 is evenly provided with 3 - 5 U-shaped grooves. The width of the U-shaped groove is 16 - 20 mm, and an M16 - M20 screw passes through the U-shaped groove and the tube sheet to support and fix the tube sheet.

[0047] The material of the circular slideway 14 is carbon steel or stainless steel; the circular slideway 14 is used for baffle support and sliding, ensuring the straightness of the baffle, and facilitating the subsequent work of threading heat exchange tubes and tube bundles. Due to the long-term friction and wear between the circular slideway 14 and the baffle of the tube bundle, the wear-resistant material HC276 is adopted. The circular slideway 14 is cylindrical, with an outer diameter Φ of 12 mm and a length of 5900 - 6100 mm.

[0048] The tube-passing scaffolding device for heat exchange tube bundles of the present invention uses I-beam 12, circular slideway 14, and second rib plate 13 as the fixed reference for the baffle plate. The second rib plates 13 are welded on both sides of the front, middle, and rear ends of the I-beam. The second rib plates 13 are used to cooperate with the jacks to adjust the levelness and height of the I-beam. After the I-beam is leveled, it can be fixed with jacks or with adjusting pads; at the tube sheet end, there are a bottom plate component and a sliding component. Channel steel 3 is welded on the sliding plate 2, which is suitable for tube sheets of different specifications and sizes; vertical oblong holes are arranged on the channel steel 3, and the screw can be adjusted up and down along the oblong holes so as to penetrate into the heat exchange tube holes on the tube sheet to fix the tube sheet; side plates 4 are welded on the outside of the channel steel 3, and horizontal oblong holes are evenly distributed in the vertical direction of the side plates 4. The bolts can be adjusted left and right along the oblong holes so as to abut against the tube sheet to adjust the perpendicularity of the tube sheet. Horizontal oblong holes are provided on both sides at a distance of 100-200 mm from the end face of the I-beam 12, and the I-beam 12 and the support component are fixed with screws, which can make the support component suitable for heat exchangers with inconsistent distances between the first baffle plate and the tube sheet, increasing the universality of the use of the support component; support components are installed on the left and right sides of the I-beam 12, which are suitable for tube sheets with larger specifications and are used to support the back of the tube sheet to make the tube sheet stable and firm, facilitating subsequent work. The oblong holes on the second support plate 9 are perpendicular to the horizontal plane, facilitating fine adjustment of the vertical support of the tube sheet; threaded pins 11 are welded on the support component, the threaded pins 11 sink into the trapezoidal holes of the support disc 10, and 3-5 U-shaped grooves are evenly distributed along the radial direction of the support disc 10. The screw passes through the U-shaped groove and the heat exchange tube hole on the tube sheet to support and fix the tube sheet. The support component is mainly used for large tube sheets and tube sheets with heavier weights, and is used to support the back of the tube sheet to make the process of passing heat exchange tubes safer and more efficient. When the support component is not in use, the first support plate 9 can slide along the fifth oblong hole towards the sliding component direction to realize the folding and retraction of the support component or the removal of the support component.

[0049] The fasteners described in the present invention are generally a combination of screws or bolts and nuts. Those skilled in the art can, according to the description of the present invention, use fasteners to achieve the connection between components.

[0050] The beneficial effects of the present invention:

[0051] In the present invention, a notch is opened on the bottom plate, which increases the welding seam length between the bottom plate and the first rib plate and improves the strength; welding rib plates on the bottom plate facilitates adjusting the levelness of the I-beam and the bottom plate and is also convenient for disassembly and storage. If the horizontal planes where the bottom plate and the I-beam are located are not flat, the levelness of the bottom plate and the I-beam can be adjusted by adjusting the screws in the oblong holes on the first rib plate.

[0052] In the heat exchanger equipment, the size of the tube sheet varies according to the size of the equipment specifications. The slider of the present invention is connected to the dovetail groove guide rail through the built-in ball sliding connection on the slider to form a sliding structure, which can slide steplessly to adapt to the tube sheets of heat exchangers of different specifications, thereby expanding the wide application of the tube sheets of the heat exchanger and realizing the process of putting together the tube bundle and inserting the heat exchange tubes of the heat exchanger with the outer diameter of the tube sheet of Φ400mm≤Φ2400mm.

[0053] When in use, the present invention uses a screw rod to pass through the oblong hole on the channel steel and the heat exchange tube hole on the heat exchanger tube sheet and tightens it with a nut to fix the tube sheet, so that the entire tube bundle will not shake when the heat exchange tube is inserted; the support component is installed on the left and right sides of the I-beam, which is suitable for larger tube sheets, and is used to support the back of the tube sheet to make the tube sheet stable and firm, which is convenient for subsequent work. The firm fixation of the tube sheet eliminates the safety hazard of the overall shaking of the heat exchange tube bundle during the manufacturing process. The verticality of the tube sheet can be adjusted by passing the bolt through the oblong hole on the side plate and tightening the bolt to support the tube sheet.

[0054] The heat exchanger tube bundle device of the present invention replaces the traditional heat exchanger tube bundle assembling process that relies on manpower, liberates traditional pure manual labor, makes it easier for heat exchange tubes to penetrate into baffles and tube sheets, and the tube bundles are also easier to penetrate into the heat exchanger shell, plays a role in safety, efficiency, time saving and labor saving in the heat exchanger tube bundle assembling process, improves work efficiency, shortens the heat exchanger manufacturing cycle, and also reduces the labor intensity of workers, reduces the manufacturing cost of the enterprise, and eliminates the safety hazard of tube bundle shaking during the manufacturing process.

[0055] The heat exchanger tube bundle device of the present invention greatly improves the concentricity and precision of the heat exchanger tube bundle, bringing convenience to the subsequent tube bundle sleeve process. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a front view of the tube bundle device for the heat exchanger of the present invention.

[0057] Figure 2 It is a partial schematic diagram of the dovetail groove guide rail, base plate and slider.

[0058] Figure 3 A partial schematic diagram of the supporting component.

[0059] Figure 4 for Figure 1 Left view of .

[0060] Figure 5 It is a partial schematic diagram of the I-beam and the circular slide.

[0061] Figure 6 for Figure 1 Top view of the .

[0062] In the figure, 1 - slider, 2 - sliding plate, 3 - channel steel, 4 - side plate, 5 - bottom plate, 6 - dovetail groove guide rail, 7 - first rib plate, 8 - support plate, 9 - support plate, 10 - support disc, 11 - threaded pin, 12 - I-beam, 13 - second rib plate, 14 - circular slideway. Detailed implementation mode

[0063] The technical solution of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0064] Embodiment 1

[0065] As Figures 1-6 shown, a heat exchanger tube bundle erection device includes a bottom plate component, a sliding component, a main body stress component, and a support component.

[0066] The bottom plate component includes a bottom plate 5, and two dovetail groove guide rails 6 are provided on one side of the bottom plate 5 along the length direction; a notch is provided in the middle on the other side of the bottom plate 5, and first rib plates 7 are welded at both ends of the notch.

[0067] Two sliding components are provided on the bottom plate component. Each sliding component includes a sliding plate 2. One slider 1 is provided at the bottom of each sliding plate 2 corresponding to each dovetail groove guide rail 6. Each slider 1 is provided with 4 M8 threaded holes, and the threaded holes are symmetrically distributed on both sides of the dovetail groove guide rail 6; corresponding to the threaded holes on the slider 1, a trapezoidal hole is provided on the sliding plate 2. The trapezoidal hole is composed of a round hole with an upper inner diameter of Φ14mm (hole depth is 10mm) and a round hole with a lower inner diameter of Φ9.5mm (hole depth is 10mm); an M8 hexagon socket head cap screw passes through the trapezoidal hole of the sliding plate 2 and the threaded hole of the slider 1 to realize the fixed connection between the slider 1 and the sliding 2; the slider 1 and the dovetail groove guide rail 6 are slidably connected through the built-in ball in the slider 1. The two sliders 1 provided on the sliding plate 2 corresponding to the two tracks move simultaneously to form an overall slide, driving the sliding component to slide along the dovetail groove guide rail 6; two M10 threaded through holes are provided on the sliding plate 2, and each threaded through hole is equipped with an M10 hexagon socket head fastener. The fastener passes through the sliding plate 2 and abuts against the bottom plate 5 to lock the sliding component. A channel steel 3 and a side plate 4 are welded on the sliding plate 2. The channel steel 3 is located inside, and the side plate 4 is located outside. Intermittent welding is used between the channel steel 3 and the side plate 4; six vertical first oblong holes (width is 18mm) are evenly distributed along the vertical direction on the channel steel 3, and seven horizontal second oblong holes (width is 26mm) are evenly distributed along the vertical direction on the side plate 4. According to the common tube sheet outer diameter size, except for the two bottom first oblong holes and the top first oblong hole on the channel steel 3, the other first oblong holes and two adjacent second oblong holes on the side plate 4 are staggered in the horizontal direction to disperse the force.

[0068] The described main body force-bearing component includes an I-beam 12, and the I-beam 12 serves as the reference for fixing the baffle plate; on both sides of one end of the I-beam 12, there are respectively provided 2 vertical third oblong holes (width 24 mm), and on the first rib plate 7, there are provided 2 horizontal fourth oblong holes (width 24 mm). Place the I-beam 12 inside the two first rib plates 7, and use M24 fasteners to fix the I-beam 12 and the first rib plate 7; weld a circular slideway 14 on the upper end face of the I-beam 12; on the two outer side faces of the I-beam 12, weld second rib plates 13 symmetrically at the front, middle, and rear; on the upper parts of both sides of the I-beam 12 near the bottom plate 5 end, there are respectively provided horizontal fifth oblong holes (width 26 mm, length 500 mm; taking the center of the fifth oblong hole as the reference, the fifth oblong hole is 163 mm away from the nearest end face of the I-beam 12) for installing the support component.

[0069] There are 2 described support components, and the 2 support components are respectively located on both sides of the I-beam 12; each support component includes a first support plate 8, a second support plate 9, a threaded pin 11, and a support disc 10. At the lower end of the first support plate 8, there are provided 2 round holes with a diameter of Φ26 mm, and at the other end, there is provided a sixth oblong hole (width 18 mm) parallel to the length direction of the first support plate 8; place the first support plate 8 obliquely outside the I-beam 12, and pass an M24 bolt through the round hole of the first support plate 8 and the fifth oblong hole of the I-beam 12, and screw it into an M24 nut to realize the installation and fixation of the first support plate 8 and the I-beam 12. The movement of the second support plate 9 can be driven by the horizontal movement of the fastener in the oblong hole; the second support plate 9 is provided with a vertical seventh oblong hole (width 18 mm), and the seventh oblong hole of the second support plate 9 and the sixth oblong hole at the top end of the first support plate 8 are connected by an M16 fastener (consisting of an M16 bolt and an M16 nut) to fix the second support plate 9 at the top end of the first support plate 8; the threaded pin 11 is horizontally arranged, one end of the threaded pin 11 is welded and fixed to the second support plate 9, the other end faces the channel steel 3 and is inserted into the trapezoidal hole at the center of the support disc 10, and the threaded pin 11 does not penetrate out of the support disc 10; the support disc 10 is fastened to the threaded pin 11 by an inner side (i.e., the side close to the I-beam 12) nut; the support disc 10 is evenly distributed with 3 U-shaped grooves with a width of 16 mm along the radial direction, and an M16 screw passes through the U-shaped groove and the tube sheet to support and fix the tube sheet.

[0070] The material of the bottom plate 5 is carbon steel; the thickness δ of the bottom plate 5 is 30 mm, the width is 600 mm, and the length is 2000 mm.

[0071] The material of the dovetail groove guide rail 6 is 55 steel; the thickness δ of the dovetail groove guide rail 6 is 22 mm, the width is 23 mm, and the length is 2000 mm.

[0072] The material of the first rib plate 7 is carbon steel; the thickness δ of the first rib plate 7 is 20 mm, the width is 200 mm, and the length (ie, height) is 400 mm.

[0073] The length of the notch is 444 mm and the width is 200 mm.

[0074] The installation of the dovetail guide rail 6 and the base plate 5 can be completed by a technician in this field in the conventional way: according to the positioning size of each dovetail guide rail 6 hole, 32 6M threaded holes are drilled on the base plate 5, and the dovetail guide rail 6 is fastened to the base plate 5 with an M6×25 hexagonal threaded rod.

[0075] The material of the slider 1 is 55# steel, the thickness δ of the slider 1 is 30.5 mm, the width is 70 mm, and the length is 84 mm.

[0076] The sliding plate 2 is made of carbon steel; the sliding plate 2 has a thickness δ of 20 mm, a length of 400 mm, and a width of 250 mm.

[0077] The material of the channel steel 3 is carbon steel. The model of the channel steel 3 is 20a (cross-sectional dimensions 200 mm×73 mm×7 mm).

[0078] The side plate 4 is made of carbon steel, has a thickness of 20 mm, a width of 200 mm, and a length of 1500 mm.

[0079] The first oblong hole of the channel steel 3 is equipped with an M16 screw, which can be adjusted up and down along the oblong hole. When overlapping the tube bundle, the M16 screw passes through the oblong hole of the channel steel 3 and the tube sheet, and the tube sheet is tightened and fixed with a nut to prevent the tube bundle from shaking when passing the heat exchange tube.

[0080] The second oblong hole of the side plate 4 is equipped with an M24 bolt, which passes through the oblong hole on the side plate 4. The bolt can be adjusted left and right along the oblong hole and tightened (M24 nuts are respectively equipped on both sides of the side plate 4, and the M24 bolt passes through the nut, the side plate 4, and the nut. The M24 screw is tightened to support the tube plate to adjust the verticality of the tube plate) to support the tube plate to adjust the verticality of the tube plate.

[0081] The thickness δ of the I-beam 12 is 20 mm, the width is 400 mm, the height is 400 mm, and the length L is 6000 mm.

[0082] The I-beam 12 and the first rib plate 7 are fixed by M24 fasteners. Specifically, an M24 bolt passes through the fifth long circular hole of the I-beam 12 and the fourth long circular hole of the first rib plate 7, and M24 nuts are screwed on both sides of the M24 bolt to fix the first rib plate 7 and the I-beam 12 with fasteners. Based on the horizontal long circular hole of the first rib plate 7 and the vertical long circular hole of the I-beam 12, the I-beam can move horizontally along the horizontal long circular hole to adjust an appropriate distance according to the thickness of the heat exchanger tube sheet. At the same time, if the ground where the main stress-bearing component and the bottom plate component are located is not level, the level can also be adjusted based on the long circular hole structure.

[0083] The circular slideway 14 is made of wear-resistant material HC276. The circular slideway 14 is cylindrical, with an outer diameter Φ of 12 mm and a length of 6000 mm.

[0084] The thickness δ of the second rib plate 13 is 30 mm, the length is 100 mm, and the width is 100 mm.

[0085] The first support plate 8 is made of carbon steel. The thickness δ of the first support plate 8 is 20 mm, the width is 100 mm, and the length is 900 mm.

[0086] The second support plate 9 is made of carbon steel. The thickness δ of the second support plate 9 is 20 mm, the width is 100 mm, and the length is 100 mm.

[0087] The threaded pin 11 is made of carbon steel; the threaded pin 11 is an M16×70 threaded pin.

[0088] The support plate 10 is made of carbon steel; the thickness δ of the support plate 10 is 30 mm, and the outer diameter Φ is 150 mm. The trapezoidal hole of the support plate 10 is a counterbore, which is composed of a circular hole with a diameter Φ of 18 mm (hole depth is 19 mm) and a circular hole with a diameter Φ of 30 mm (hole depth is 11 mm), and the diameter of the circular hole closer to the I-beam 12 is smaller than the diameter of the circular hole closer to the channel steel 3.

[0089] For the components made of carbon steel in this embodiment, paint is brushed on the outer surface of the components.

[0090] During the specific implementation: first adjust the level of the bottom plate 5 and the I-beam 12 of the heat exchanger tube bundle device according to the level of the ground. After adjusting the level, fix the I-beam 12 and the bottom plate 5 by supporting the second rib plate 13 with a jack or adjusting pad; pass the M24 screw through the oblong hole of the first rib plate 7 and the oblong hole of the I-beam 12, and tighten the nut to fix it. Slide the sliding part to the appropriate position according to the size of the heat exchanger tube sheet, place the heat exchanger tube sheet on the jack, adjust the jack to the appropriate position, and pass the M16 screw through the oblong hole of the channel steel 3 and the heat exchange tube hole on the heat exchanger tube sheet (determine how many M16 screws are inserted according to the size of the tube sheet, but not less than two), and tighten the nut to fix the tube sheet to prevent the tube sheet from shaking. There is an M24 nut on each side of a pair of side plates 4. The M24 bolt passes through the nut, the oblong hole of the side plate 4, and the nut. The M24 bolt is tightened to support the heat exchanger tube sheet to adjust the verticality of the heat exchanger tube sheet. After the verticality of the heat exchanger tube sheet is adjusted, the hexagon socket nut is tightened through the threaded through hole on the sliding plate 2. The hexagon socket nut passes through the sliding plate 2 and supports the bottom plate 5 to lock the sliding component. Larger and heavier heat exchanger tube sheets use support components. The first support plate 8 and the I-beam 12 are tightened and fixed by M24 screws and M24 nuts. The U-slot of the support plate 10 is adjusted to ensure that the M16 screw passes horizontally through the U-slot and enters the heat exchange tube hole on the heat exchanger tube sheet. The nut on the back of the support plate 10 (I-beam 12 side) is tightened to fix the support plate 10 on the threaded pin 11. The M16 screw passes through the U-slot on the support plate 10 and the heat exchange tube hole on the heat exchanger tube sheet, and the nut is tightened to fix the tube sheet; assemble the tie rod and spacing tube to slide the baffle along the circular slide 14 into the tie rod hole on the baffle to complete the heat exchanger tube bundle process.

[0091] The heat exchanger tube bundle erecting device of this embodiment can realize the work of inserting heat exchange tubes in the heat exchanger tube bundle with a specification of Φ400mm≤tube sheet outer diameter≤Φ2400mm. It is a safe, efficient, time-saving and labor-saving tube bundle erecting device to reduce the labor intensity of workers, reduce the manufacturing cost of the enterprise, and eliminate the safety hazard of shaking of the entire tube bundle during the manufacturing process of inserting heat exchange tubes.

Claims

1. A heat exchanger tube bundle assembly, characterized in that: It includes a bottom plate component, a sliding component, a main body stress component, and a support component; the bottom plate component includes a bottom plate (5), with a dovetail groove guide rail (6) provided on one side of the bottom plate (5) along the length direction, a notch provided in the middle on the other side of the bottom plate (5), and first rib plates (7) provided at both ends of the notch; 2 sliding components are provided on the bottom plate component, the sliding component includes a slider (1), a sliding plate (2) is provided at the top of the slider (1), and a channel steel (3) and a side plate (4) are provided on the sliding plate (2); the built-in ball of the slider (1) is slidably connected to the dovetail groove guide rail (6), and the sliding component is driven by the slider (1) to slide along the dovetail groove guide rail (6); the main body stress component includes an I-beam (12), one end of the I-beam (12) is fixed by the first rib plate (7), and a circular slideway (14) is welded on the upper end surface of the I-beam (12); second rib plates (13) are symmetrically welded on the front, middle, and rear parts of the two outer sides of the I-beam (12); two of the support components are provided on the upper part of the I-beam (12) near the bottom plate (5); the support component includes a first support plate (8), the lower end of the first support plate (8) is fixed to the I-beam (12) by a fastener, a second support plate (9) is provided at the top of the first support plate (8), the second support plate (9) is connected to one end of a threaded pin (11), the other end of the threaded pin (11) faces the channel steel (3) and is inserted into the trapezoidal hole of the support disc (10), and the threaded pin (11) does not penetrate out of the support disc (10).

2. The heat exchanger tube bundle device according to claim 1, wherein: The material of the bottom plate (5) is carbon steel or stainless steel; the material of the dovetail groove guide rail (6) is carbon steel or stainless steel; the material of the first rib plate (7) is carbon steel or stainless steel; the material of the slider (1) is 55 steel; the material of the sliding plate (2) is carbon steel or stainless steel; the material of the I-beam (12) is carbon steel or stainless steel; the material of the second rib plate (13) is carbon steel or stainless steel; the material of the first support plate (8) is carbon steel or stainless steel; the material of the second support plate (9) is carbon steel or stainless steel; the material of the threaded pin (11) is carbon steel or stainless steel; the material of the support disc (10) is carbon steel or stainless steel; the material of the circular slideway (14) is carbon steel or stainless steel.

3. The heat exchanger tube bundle device according to claim 1, characterized in that: Each slider (1) is provided with at least two threaded holes and the number of threaded holes is a multiple of 2, and the threaded holes are symmetrically distributed on both sides of the dovetail groove guide rail (6); corresponding to the threaded holes on the slider (1), trapezoidal holes are provided on the sliding plate (2); the fastener passes through the trapezoidal hole of the sliding plate (2) and the threaded hole of the slider (1) and is tightened to realize the fixation of the slider and the sliding plate.

4. The heat exchanger tube bundle device according to claim 1, wherein: The number of the dovetail groove guide rails (6) is 2; one slider (1) is provided at the bottom of each sliding plate (2) corresponding to each dovetail groove guide rail (6), and the built-in ball of the slider (1) is slidably connected to the dovetail groove guide rail (6).

5. The heat exchanger tube bundle device according to claim 1, characterized in that: 2 to 4 threaded through holes are provided on the sliding plate (2), and each threaded through hole is equipped with a fastener, and the fastener passes through the sliding plate (2) and abuts against the bottom plate (5) to lock the sliding plate.

6. The heat exchanger tube bundle device according to claim 1, wherein: The channel steel (3) and the side plate (4) are respectively welded to the sliding plate (2); the channel steel (3) is located on the inner side, and the side plate (4) is located on the outer side; intermittent welding is adopted between the channel steel (3) and the side plate (4); 6 to 9 vertical first oblong holes are evenly distributed along the vertical direction on the channel steel (3), and 7 to 11 horizontal second oblong holes are evenly distributed along the vertical direction on the side plate (4).

7. The heat exchanger tube bundle device according to claim 6, characterized in that: 6 vertical first oblong holes are evenly distributed along the vertical direction on the channel steel (3), and 7 horizontal second oblong holes are evenly distributed along the vertical direction on the side plate (4).

8. The heat exchanger tube bundle device according to claim 6, wherein: Except for the two first oblong holes at the bottom and one first oblong hole at the top on the channel steel (3), the other first oblong holes are staggered with two adjacent second oblong holes on the side plate (4).

9. The heat exchanger tube bundle device according to claim 1 or 8, characterized in that: 2 to 4 vertical third oblong holes are respectively arranged on both sides of one end of the I-beam (12), 2 to 4 horizontal fourth oblong holes are arranged on the first rib plate (7), and the I-beam (12) and the first rib plate (7) are connected by fasteners.

10. The heat exchanger tube bundle device according to claim 1, characterized in that: Horizontal fifth oblong holes are respectively arranged on the upper parts of both sides of the I-beam (12) near the bottom plate (5); taking the center of the fifth oblong hole as the reference, the distance from the fifth oblong hole to the end of the I-beam (12) near the bottom plate (5) is 100 to 200 mm; 1 to 2 round holes are arranged at the lower end of the first support plate (8), and a sixth oblong hole parallel to the length direction of the first support plate is arranged at the other end; the first support plate (8) is placed on the outer side of the I-beam (12), bolts pass through the round holes of the first support plate (8) and the fifth oblong holes of the I-beam (12), and nuts are screwed in to connect the first support plate and the I-beam; the second support plate (9) is provided with a vertical seventh oblong hole, and the seventh oblong hole of the second support plate (9) and the sixth oblong hole of the first support plate (8) are connected by fasteners to fix the second support plate at the top of the first support plate.

11. The heat exchanger tube bundle device according to claim 1, wherein: The support disc (10) is fastened to the threaded pin (11) by a nut; 3 to 5 U-shaped grooves are evenly distributed on the support disc (10).

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