Machine special for installing heat exchanger tube bundle

Abstract

The utility model discloses a special machine for installing a heat exchanger tube bundle, which belongs to the field of thermal equipment and comprises an installation platform, a shell can be placed at one end of the installation platform, and a propelling support structure is arranged at the other end of the installation platform and can push the tube bundle into the shell; the propelling supporting structure comprises a sliding rail arranged on the installation platform, a plurality of tube bundle supporting saddles are arranged on the sliding rail in a sliding mode, and tube bundles are supported on the tube bundle supporting saddles. The tube bundle supporting saddle comprises a left adjusting seat and a right adjusting seat which are symmetrically arranged, supporting slopes are arranged on the adjacent sides of the left adjusting seat and the right adjusting seat to support the tube bundle at the same time, sliding structures and lead screws are arranged at the bottoms of the left adjusting seat and the right adjusting seat, and the screwing directions of threads at the two ends of each lead screw are opposite. The left adjusting seat and the right adjusting seat are close to each other or far away from each other and drive the tube bundle to lift through the supporting inclined surface. The assembling efficiency of the tube bundle and the shell can be improved, and the assembling difficulty of the tube bundle and the shell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of thermal equipment, concretely relates to a special machine for heat exchanger tube bundle installation. BACKGROUND

[0002] The shell-and-tube heat exchanger needs to install the assembled tube bundle into the shell during assembly, however, the assembled tube bundle is heavy (from several tons to several hundred tons), and the connection form is that the tube penetrates all the tube sheets, which is easy to deform during hoisting, and the gap between the tube bundle and the shell is often not greater than 5mm on one side, which is easy to deform and jam when pushing into the shell.

[0003] The installation process needs to use a crane to lift one end of the tube bundle, and then use a forklift, a chain, a tensioner and other equipment to push the tube bundle into the shell little by little, which consumes a lot of manpower, material resources and time, and often 7-8 people need 2-3 days to push one tube bundle, and sometimes when the forklift or chain cannot push the tube bundle due to its deformation and heavy weight, a part of the tube bundle is pulled out and then pushed again, which further increases the working time and difficulty.

[0004] In view of the above problems, the utility model designs and manufactures a special machine for heat exchanger tube bundle installation to overcome the above defects. SUMMARY

[0005] For the problems existing in the prior art, the special machine for heat exchanger tube bundle installation can improve the assembly efficiency between the tube bundle and the shell and reduce the assembly difficulty of the two.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a special machine for heat exchanger tube bundle installation, comprising an installation platform, a shell can be placed at one end of the installation platform, the other end of the installation platform is provided with a pushing support structure, the pushing support structure can push the tube bundle into the shell;

[0007] The pushing support structure comprises a slide rail provided on the installation platform, a plurality of tube bundle support saddles are slidably arranged on the slide rail, and a tube bundle is supported on the plurality of tube bundle support saddles;

[0008] The tube bundle support saddle comprises symmetrically arranged left and right adjusting seats, the left and right adjusting seats are provided with support inclined surfaces on one side adjacent to each other, the support inclined surfaces support the tube bundle, the bottom of the left and right adjusting seats is provided with a sliding structure and a lead screw, the screw threads of the two ends of the lead screw are opposite, when the lead screw rotates, the left and right adjusting seats are driven to ascend or descend by approaching or moving away from each other and relying on the support inclined surfaces.

[0009] Preferably, the vertical symmetry line between the left and right adjusting seats coincides with the center of the shell on the installation platform.

[0010] Preferably, the tube bundle support saddle comprises a bottom plate, and the bottom plate is provided with a sliding rail groove at the bottom, which can be slidably matched with the sliding rail;

[0011] The bottom plate is provided with the sliding structure and a lead screw above, and the left and right adjusting seats slide on the sliding structure above the bottom plate through the lead screw.

[0012] Preferably, one end of the lead screw is provided with a driving device, which can drive the lead screw to rotate.

[0013] Preferably, the baffle of the tube bundle is supported on the two support inclined surfaces of the tube bundle support saddle.

[0014] Preferably, the tube bundle support saddle farthest from the shell is provided as a pushing support saddle, which is supported at the bottom of the tube plate of the tube bundle far from the shell.

[0015] The pushing support saddle is provided with a pushing base on the side far from the shell, the position of the pushing base can be adjusted and positioned along the direction of the sliding rail, the pushing base is provided with a pushing oil cylinder thereon, and the pushing oil cylinder can push the tube bundle by pushing the pushing support saddle.

[0016] Preferably, the mounting platform is provided with a plurality of positioning grooves arranged along the direction of the sliding rail, the pushing base is provided with a plurality of positioning holes, the positioning holes can be vertically coincided with the positioning grooves and are inserted with check blocks.

[0017] Preferably, the pushing support saddle is provided with a pushing vertical plate at the end far from the shell of the two support inclined surfaces, and the pushing oil cylinder can drive the pushing support saddle to move by pushing the pushing vertical plate.

[0018] Preferably, the mounting platform is provided with a stop block matched with the saddle on the shell, and the stop block can limit the movement of the shell in the direction of pushing the tube bundle.

[0019] Preferably, a space is arranged between the end of the sliding rail and the end of the shell on the mounting platform, and the size of the space is greater than the thickness of the tube bundle support saddle.

[0020] The utility model has the advantages of:

[0021] 1. The utility model discloses a plurality of tube bundle support saddles sliding on the sliding rail to support the tube bundle, which not only facilitates the movement of the tube bundle, avoids complex operations such as crane hoisting, but also makes the pushing of the tube bundle more stable, avoids the frictional damage between the shell and the tube bundle, and further has small labor intensity in the whole pushing and adjusting process, so that the pushing process can be realized by not too many operators.

[0022] 2. The utility model discloses utilize the support inclined plane of left adjustment seat and right adjustment seat and the screw rod of bottom screw thread rotation direction opposite, realized the position adjustment of pipe bundle in height direction, that is to say as far as possible let pipe bundle and shell concentric, to avoid the collision and friction between pipe bundle and shell.

[0023] 3. The utility model discloses the propulsion base can be adjusted with the position of pipe bundle's movement, and the propulsion cylinder on the propulsion base utilizes check block to guarantee the positioning of propulsion base in the process of pushing pipe bundle movement.

[0024] 4. The utility model discloses the spacing between slide rail terminal and shell end, guarantees the transfer of pipe bundle support saddle after pipe bundle enters the shell, avoids the pushing of pipe bundle support saddle influence rear pipe bundle. DRAWINGS

[0025] Figure 1 It is a schematic view of the special machine for heat exchanger pipe bundle installation working;

[0026] Figure 2 It is the structural schematic view of pipe bundle support saddle of the utility model;

[0027] Figure 3 It is the front view of pipe bundle support saddle of the utility model;

[0028] Figure 4 It is the side view of pipe bundle support saddle of the utility model;

[0029] Figure 5 It is the sectional view of A-A direction of the utility model;

[0030] Figure 6 It is the sectional view of B-B direction of the utility model;

[0031] Figure 7 It is the structural schematic view of propulsion support saddle of the utility model.

[0032] In the drawing: 1, installation platform; 2, stop block; 3, pipe bundle support saddle; 4, propulsion support saddle; 5, propulsion base; 6, slide rail; 7, positioning groove; 8, propulsion cylinder; 9, check block; 31, left adjustment seat; 32, right adjustment seat; 33, bottom plate; 34, slide rail groove; 35, support inclined plane; 36, screw rod; 37, hand wheel; 38, bearing seat; 39, slide; 41, propulsion vertical plate; 100, shell; 101, saddle; 102, pipe bundle; 103, baffle; 104, tube sheet. DETAILED DESCRIPTION

[0033] In order to facilitate the person skilled in the art understanding, the utility model is further explained below in conjunction with the drawings.

[0034] As Figures 1 to 7As shown, a heat exchanger tube bundle installation special machine includes an installation platform 1, a shell 100 can be placed at one end of the installation platform 1, when the heat exchanger needs to be assembled, the shell 100 needs to be hoisted to the installation platform 1 by a crane, and the other end of the installation platform 1 is provided with a pushing support structure, which can support the tube bundle 102 and push the tube bundle 102 into the shell 100.

[0035] Specifically, the pushing support structure includes a slide rail 6 arranged on the installation platform 1, a plurality of tube bundle support saddles 3 are slidably arranged on the slide rail 6, and the slide rail 6 is preferably provided with two slide rails to ensure the stability of the pushing support structure sliding on the slide rail 6. The plurality of tube bundle support saddles 3 support the tube bundle 102, and the support position is selected at the baffle 103 of the tube bundle 102.

[0036] The utility model discloses a plurality of in the slide rail 6 sliding tube bundle support saddle 3 support tube bundle 102, not only facilitate the movement of tube bundle 102, avoid the complex operation such as travelling crane hoisting, and tube bundle 102 pushes more stable, avoid the friction damage between shell 100 and tube bundle 102, in addition, the labor intensity is small in the whole pushing and adjusting process, and too many operators can realize the pushing process.

[0037] The tube bundle support saddle 3 includes symmetrically arranged left adjusting seat 31 and right adjusting seat 32, the vertical symmetry line between the left adjusting seat 31 and the right adjusting seat 32 coincides with the center of the shell 100 on the installation platform 1, and the adjacent side of the left adjusting seat 31 and the right adjusting seat 32 is provided with a support inclined surface 35 for supporting the tube bundle 102. The support inclined surface 35 can also be an arc surface. The bottom of the left adjusting seat 31 and the right adjusting seat 32 is provided with a sliding structure and a lead screw 36. The screw threads of the lead screw 36 at both ends are opposite in direction. When the lead screw 36 rotates, the left adjusting seat 31 and the right adjusting seat 32 are lifted by moving closer to each other or moving away from each other and relying on the support inclined surface 35 to drive the tube bundle 102. The purpose is to make the tube bundle 102 and the shell 100 concentric, so as to avoid collision and friction between the tube bundle 102 and the shell 100.

[0038] The tube bundle support saddle 3 further includes a bottom plate 33, the bottom plate 33 is provided with a slide rail groove 34 at the bottom, and the slide rail groove 34 can be slidably connected with the slide rail 6. The bottom plate 33 is provided with a sliding structure and a lead screw 36 above the bottom plate 33. The left adjusting seat 31 and the right adjusting seat 32 slide on the sliding structure above the bottom plate 33 through the lead screw 36. One end of the lead screw 36 is provided with a driving device, and the driving device can drive the lead screw 36 to rotate. The driving device can be a hand wheel 37 or a motor.

[0039] Specifically, the sliding structure is preferably two slide ways 39 arranged on both sides of the lead screw 36. The lead screw 36 is supported on the bottom plate 33 through a bearing seat 38 at both ends. The bottom of the left adjusting seat 31 and the right adjusting seat 32 is connected with the lead screw 36 through a lead screw nut.

[0040] The farthest tube bundle support saddle 3 of the distance shell 100 is provided as a pushing support saddle 4, and the pushing support saddle 4 is supported at the bottom of the tube plate 104 of the tube bundle 102 far from the shell 100. The pushing support saddle 4 is provided with a pushing base 5 on the side far from the shell 100, the position of the pushing base 5 can be adjusted and positioned along the direction of the slide rail 6, the pushing base 5 is provided with a pushing oil cylinder 8, and the pushing oil cylinder 8 can push the tube bundle 102 by pushing the pushing support saddle 4.

[0041] In order to ensure the positioning of the pushing base 5 at a position, a plurality of positioning grooves 7 are arranged along the direction of the slide rail 6 on the mounting platform 1, and a plurality of positioning holes are arranged on the pushing base 5, the positioning holes can be inserted with a check block 9 after being vertically overlapped with the positioning grooves 7, so that the positioning of the pushing oil cylinder 8 on the pushing base 5 during the pushing movement of the tube bundle 102 is realized.

[0042] In order to avoid the pushing oil cylinder 8 and the pushing tube bundle 102 from being in contact with the tube bundle 102 and causing damage to the heat exchange pipe and the tube plate 104 of the tube bundle 102, the end of the two support inclined surfaces 35 of the pushing support saddle 4 far from the shell 100 is preferably provided with a pushing vertical plate 41, and the end of the oil cylinder rod of the pushing oil cylinder 8 can abut against the pushing vertical plate 41 when the oil cylinder rod is extended, so that the pushing oil cylinder 8 can drive the pushing support saddle 4 to move by pushing the pushing vertical plate 41.

[0043] In order to improve the stability of the shell 100 during the assembly of the heat exchanger and prevent the shell 100 from moving due to the pushing force when the tube bundle 102 is pushed to scan the shell 100, the mounting platform 1 is provided with a stop block 2 matched with the saddle 101 on the shell 100, the stop block 2 is arranged on the bottom of the saddle 101 on the shell 100 and away from the pushing support structure, and the stop block 2 can limit the movement of the shell 100 in the pushing direction of the tube bundle 102.

[0044] In order to avoid the tube bundle 102 from entering the shell 100 and the front tube bundle support saddle 3 from affecting the pushing of the rear tube bundle 102, a certain spacing is arranged between the end of the slide rail 6 and the end of the shell 100 on the mounting platform 1, the size of the spacing is greater than the thickness of the tube bundle support saddle 3, and the tube bundle support saddle 3 is conveniently transferred from both sides.

[0045] The specific operation process of the utility model is as follows:

[0046] When the heat exchanger needs to be assembled, the shell 100 is first hoisted onto the shell mounting platform 1, the saddle 101 on the shell 100 is in contact with the stop block 2 on the mounting platform 1, and when the shell 100 is subjected to the pushing force of the tube bundle 102, the stop block 2 prevents the shell 100 from moving backward.

[0047] The tube bundle 102 is hoisted to the tube bundle support saddle 3, the baffle 103 on the tube bundle 102 is matched with the tube bundle support saddle 3, and the tube plate 104 of the tube bundle 102 away from the shell 100 is placed on the pushing support saddle 4;

[0048] The tube bundle support saddle 3 is adjusted to be slightly higher than the inner bottom surface of the shell 100, so that the frictional resistance is reduced during installation, and the tube bundle 102 is more convenient to enter the shell 100, and the pushing support saddle 4 also needs to be adjusted to ensure that the tube bundle 102 is nearly concentric with the shell 100;

[0049] The pushing base 5 is pushed to the vicinity of the pushing support saddle 4, the oil cylinder rod end of the pushing oil cylinder 8 is in contact with the pushing vertical plate 41 on the pushing support saddle 4, the check block 9 is inserted into the positioning hole of the pushing base 5 and the positioning groove 7 of the installation platform 1, and the pushing oil cylinder 8 is started to slowly feed the tube bundle 102 into the shell 100;

[0050] When the first tube bundle support saddle 3 approaches the shell 100, the first tube bundle support saddle 3 is separated from the tube bundle 102 and withdrawn from both sides of the interval, at this time the tube bundle 102 can continue to move forward, when the second tube bundle support saddle 3 approaches the shell 100, the first tube bundle support saddle 3 is separated from the tube bundle 102 and withdrawn from both sides of the interval, until the last pushing support saddle 4 approaches the shell 100, the part of the tube bundle 102 outside the shell 100 is very small, and finally only a lengthened support plate is needed to continue to push the tube bundle 102 into the shell 100 to complete the installation work.

[0051] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A heat exchanger tube bundle installation machine characterized by, The installation platform (1) is provided with the shell (100) at one end, and the other end is provided with a propelling support structure capable of pushing the tube bundle (102) into the shell (100); The propelling support structure comprises a slide rail (6) arranged on the installation platform (1), and a plurality of tube bundle support saddles (3) are slidably arranged on the slide rail (6), and the plurality of tube bundle support saddles (3) support the tube bundle (102); The tube bundle support saddle (3) comprises symmetrically arranged left and right adjusting seats (31) and (32), and the left and right adjusting seats (31) and (32) are provided with support inclined surfaces (35) on the adjacent sides to support the tube bundle (102); the bottom of the left and right adjusting seats (31) and (32) is provided with a sliding structure and a lead screw (36), the screw threads of the two ends of the lead screw (36) are opposite, and when the lead screw (36) rotates, the left and right adjusting seats (31) and (32) are driven to ascend and descend by approaching or moving away from each other and relying on the support inclined surfaces (35).

2. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The vertical symmetry line between the left and right adjusting seats (31) and (32) coincides with the center of the shell (100) on the installation platform (1).

3. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The tube bundle support saddle (3) comprises a bottom plate (33), and the bottom plate (33) is provided with a slide rail groove (34) at the bottom, which can be slidably matched with the slide rail (6); The bottom plate (33) is provided with the sliding structure and the lead screw (36) above, and the left and right adjusting seats (31) and (32) slide on the sliding structure above the bottom plate (33) through the lead screw (36).

4. The heat exchanger tube bundle installation specialist machine of claim 3, wherein, One end of the lead screw (36) is provided with a driving device capable of driving the lead screw (36) to rotate.

5. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The baffle (103) of the tube bundle (102) is supported on the two support inclined surfaces (35) of the tube bundle support saddle (3).

6. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The tube bundle support saddle (3) farthest from the shell (100) is provided as a propelling support saddle (4) which supports the tube plate (104) of the tube bundle (102) farthest from the shell (100); The propelling support saddle (4) is provided with a propelling base (5) on the side farthest from the shell (100), the position of the propelling base (5) can be adjusted and positioned along the direction of the slide rail (6), the propelling base (5) is provided with a propelling oil cylinder (8), and the propelling oil cylinder (8) can push the tube bundle (102) by pushing the propelling support saddle (4).

7. A heat exchanger tube bundle installation specialist machine according to claim 6, characterised in that, The installation platform (1) is provided with a plurality of positioning grooves (7) arranged along the direction of the slide rail (6), and the propelling base (5) is provided with a plurality of positioning holes which can vertically coincide with the positioning grooves (7) and are inserted with a check block (9).

8. A heat exchanger tube bundle installation specialist machine according to claim 6, characterised in that, The two support inclined surfaces (35) of the propelling support saddle (4) are provided with a propelling vertical plate (41) at the end farthest from the shell (100), and the propelling oil cylinder (8) can drive the propelling support saddle (4) to move by pushing the propelling vertical plate (41).

9. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The mounting platform (1) is provided with a stop block (2) matched with the saddle (101) on the shell (100), and the stop block (2) can limit the movement of the shell (100) in the pushing direction of the tube bundle (102).

10. The heat exchanger tube bundle installation specialist machine of claim 1, wherein, The end of the sliding rail (6) is provided with a spacing from the end of the shell (100) on the mounting platform (1), and the size of the spacing is greater than the thickness of the tube bundle support saddle (3).

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