CN218698320U - Semi-automatic assembly device for shell-and-tube heat exchanger - Google Patents

Abstract

The utility model provides a semi-automatic group of shell and tube heat exchanger is to device, be in including base and setting auxiliary device on the base. Two parallel linear rails are axially arranged on the base, a fixed base plate is arranged at one end of each linear rail, a movable base plate capable of horizontally sliding along the linear rails is further arranged on the base, tube plate positioning devices which are oppositely and correspondingly arranged and ensure concentricity are arranged on the fixed base plate and the movable base plate, and a fixed lifting table is further arranged between the fixed base plate and the movable base plate. The utility model has the advantages of being simple in structure and easy in operation and group to effectual, group is to operation treatment back heat exchanger both sides tube sheet symmetry height, and tube sheet axial deviation is little, can adjust tube sheet, backup pad and heat exchanger barrel three at the unanimous concentricity of axial horizontal direction fast accurately to hole site center aligns everywhere in tube sheet and the backup pad, guaranteed the heat exchange tube when fast production group is right and alternate required precision smoothly.

Description

Semi-automatic assembly device of shell and tube heat exchanger

Technical Field

The utility model relates to a heat exchanger field of making, concretely relates to semi-automatic group of shell and tube heat exchanger is to device.

Background

The shell-and-tube heat exchanger is common equipment in the industries of chemical industry, light industry, food and medicine, special boiler systems and the like, wherein in the process of assembling the tube plates of the heat exchanger, the front and back freedom degrees of the tube plates on two sides are high, the number of the tube holes is large, concentric and coaxial assembling is difficult, and the slight eccentricity can cause that the heat exchange tubes in the heat exchanger can not be freely inserted between the two tube plates, so that the rapid and accurate assembling of the tube plates of the heat exchanger is an important link for producing the shell-and-tube heat exchanger.

At present, in the manufacturing process of a heat exchanger, a tube plate assembling machine is generally adopted for tube plate assembling, but the structure of each part of the tube plate assembling machine is complex, the requirement on barrel assembly operation is high, the requirement on part assembly precision is high, the requirement on the assembly proficiency of personnel is high, and a large batch of qualified products cannot be processed in a short time. In recent prior art, a rapid assembling tool and assembling method for tube cores of tube type heat exchangers (application date: 2022.06.19, patent application number: CN 202210693871.0) discloses a rapid assembling tool for tube cores of tube type heat exchangers, which comprises a support, a slideway, a movable support, a heat exchanger tube core, a heat exchanger barrel, a hydraulic assembly adjustable roller frame, and a high sizing block, and has the disadvantages of more supports, complex device structure, high requirement on component assembling precision, and the like.

SUMMERY OF THE UTILITY MODEL

Based on the problems existing in the prior art, the utility model aims to provide a compare with prior art simple structure, easy operation and group to effectual a semi-automatic group of shell and tube heat exchanger is to device.

In order to realize the above purpose, a semi-automatic group of shell and tube heat exchanger is to device is provided, be in including base and setting auxiliary device on the base, be provided with two parallel linear rails along its axial on the base, the base is located the one end of linear rail is provided with fixed baseplate, still be provided with on the base and follow horizontal slip's removal base plate around the linear rail, fixed baseplate with all be equipped with the tube sheet positioner who corresponds the assurance concentricity that sets up in opposite directions on the removal base plate, fixed baseplate with still be provided with fixed elevating platform between the removal base plate.

At present, heat exchanger tube sheet group who uses in the production of shell and tube type heat exchanger is to device when carrying out tube sheet group to the operation, has adopted the mode of assembling the tube sheet through movable support and slide cooperation basically, nevertheless because on heat exchanger front end tube sheet and heat exchanger backup pad are fixed in the support of a plurality of portable regulation respectively, there is a plurality of supports to adjust more complicated problem simultaneously, still leads to the skew probability increase of the concentricity between each board in accommodation process easily, still has certain degree of difficulty to the operation of quick accurate adjustment tube sheet and backup pad concentricity unanimity. Therefore the utility model discloses, it is fixed through fixed base plate to have adopted the one end tube sheet, other tube sheets and backup pad all carry out the group through the removal base plate that only can front and back horizontal migration on the on-line rail to operate, and simultaneously, all be provided with the positioner that corresponds in opposite directions above fixed base plate and the removal base plate, through positioner steerable tube sheet and backup pad group one by one to the in-process keep the concentricity unanimous, at specific group to in-service, the operation of managing and controlling position cooperation connection above further round steel and tube sheet and the backup pad in addition, thereby further promote the precision of group. The fixed lifting platform is favorable for keeping the concentricity of the tube plate, the supporting plate and the outer sleeve heat exchanger barrel consistent, and the heat exchanger barrel can be sleeved outside after the tube plate and the supporting plate are assembled to operate, so that the fixed lifting platform can be lifted at a required height to support the heat exchanger barrel in a fixed welding process, and the gravity center of the heat exchanger barrel is prevented from being deviated.

Preferably, the tube plate positioning device comprises positioning pins distributed on the fixed base plate and the movable base plate.

The locating pin presents the bulge structure that corresponds in opposite directions on fixed baseplate and removal base plate, and when the tube sheet and the backup pad at installation both ends, this bulge structure passes behind the corresponding hole site on tube sheet and the backup pad, is connected through the cooperation of bulge structure and bolt and nut, fixes a position fixedly to tube sheet and backup pad.

Preferably, the movable substrate is provided with a locking part for locking the movable substrate on the linear rail slideway.

In the process of installing the tube plate and the support plate through directional transfer of the movable substrate, the movable substrate can be locked on the line rail slide way by using the locking part of the movable substrate on the line rail slide way, so that the stability of the movable substrate in a static state is ensured in the assembling process, and the non-deviation of concentricity is kept when the fixed support plate, the tube plate and the heat exchanger barrel are positioned.

Preferably, the movable base plate and the fixed base plate both comprise a steel plate with holes and a stable reinforcing rib frame.

The movable base plate and the fixed base plate are respectively composed of a steel plate with holes and a stable reinforcing frame, the effect of the stable reinforcing frame is mainly to keep the rigidity and the stability of the steel plate with holes in the vertical direction on the base, and the strength of the required stability of the movable base plate and the fixed base plate in the operation process is ensured.

Preferably, the surfaces of the steel plates with the holes are uniformly distributed with checking holes, and the positions of the checking holes on the movable base plate correspond to those of the checking holes on the fixed base plate.

The check holes on the surfaces of the steel plates with the holes on the movable base plate and the fixed base plate are uniformly distributed, the positions of the check holes correspond to each other, the check holes correspond to the hole positions of the overlapped parts on the tube plate and the support plate, whether the holes in the tube plate and the support plates correspond to each other is checked, the quality of the product is guaranteed, and the inserting work of the later-stage heat exchange tube can be smoothly carried out.

Preferably, the stable reinforcement frame comprises vertical reinforcement frames arranged on two side edges of the steel plate with holes, the tops of the vertical reinforcement frames are connected through a connecting block, and hollow holes are formed in the surface of the vertical reinforcement frame.

Preferably, the side edge of the vertical reinforcement frame is fixedly connected with a lateral reinforcement frame, the lateral reinforcement frame on the fixed substrate is connected through a connecting block and is fixedly connected with the base, and the lateral reinforcement frame on the movable substrate is connected through a connecting block.

The fixed base plate and the steel support body with holes that the removal base plate all adopted are built and are formed, and have still adopted the fretwork design on the vertical support body, and non-solid body material, the main objective is save set's preparation material, and the mode that adopts vertical muscle frame and side direction muscle frame that adds can reach the required muscle intensity that adds of satisfying the device, reaches the purpose that the device was installed stably.

Preferably, the height of the lateral reinforcement frame is more than 1/2 of the height of the vertical reinforcement frame.

The height of the lateral reinforcement frame is more than 1/2 of the height of the vertical reinforcement frame, and the lateral reinforcement frame with the same height as the vertical reinforcement frame can be manufactured, but the material is saved, and the actual height only needs to reach the reinforcement strength required by production.

Preferably, the base comprises two I-shaped steels which are parallel to each other and fixedly connected with each other through an iron plate.

The base is formed by mutually and fixedly connecting two parallel I-shaped steels through iron plates, threaded holes are drilled right above the I-shaped steels, and the upper rails are fixed by matching screws.

Preferably, the fixed substrate and the movable substrate are both made of steel, and the fixed substrate and the movable substrate have the same size.

The size of fixed base plate is the same with the size of removal base plate, and the sectional area of perpendicular to base axial horizontal direction is less than the area of tube sheet and backup pad to in the installation, the smooth of fixed round steel work is gone on in the management and control position interlude in tube sheet and backup pad.

The beneficial effects of the utility model are that can adjust the unanimous concentricity of tube sheet, backup pad and the heat exchanger barrel three of product fast accurately at the axial horizontal direction to guarantee that the hole site center everywhere in tube sheet and the backup pad aligns, the group is simple and easy to the assembly, specifically: the fixed baseplate and the movable baseplate are provided with positioning pins which correspond in opposite directions and serve as positioning structures, the concentricity of the tube plates at two ends can be ensured to be consistent through bolt and nut fixed connection, the axial concentricity of the support plate and the tube plates is ensured to be consistent preliminarily in the installation process, the horizontal axial stable movement of the movable baseplate on the linear slide rail is realized, the management and control positions on the tube plates and the support plate are connected with the matching of round steel inserted into the management and control hole sites, the consistency of the axial concentricity of the support plate and the tube plates is further kept, and meanwhile, the centers of all hole sites on the tube plates and the support plate are aligned. When the outer sleeve heat exchanger barrel is fixed, the fixed lifting platform provides an upward thrust for the heat exchanger barrel, the heat exchanger barrel is prevented from being increased to cause the shift of the center of gravity, and the concentricity of the tube plate, the support plate and the heat exchanger barrel is ensured to be consistent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only a part of the embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model discloses a semi-automatic group of shell and tube heat exchanger is to the schematic structure of device.

Fig. 2 is the utility model discloses a semi-automatic group of shell and tube heat exchanger is to the working principle picture of device.

Fig. 3 is the left side view of the semi-automatic group of shell and tube heat exchanger of the utility model to the device.

Fig. 4 is a partial enlarged view of the junction between the moving substrate and the track runner according to the present invention.

Wherein: 1 fixing a substrate; 2 moving the substrate; 3, a linear rail; 4, a base; 5 fixing a lifting platform; 6, positioning pins; 7, a sliding block; 8, a locking part; 9 a tube plate; 10 supporting a plate; 11, round steel; and 12, checking the hole.

Detailed Description

The technical solution of the present invention will be further described with reference to the drawings and specific embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1-4, the semi-automatic assembling device for shell-and-tube heat exchanger of the present invention comprises a fixed base plate 1, a movable base plate 2, a line rail 3, a base 4, a fixed lifting platform 5, a positioning pin 6, a slider 7 and a locking part 8; the base 4 is horizontally arranged and ensures the rigidity of the base 4, the base 4 is provided with two parallel linear rails 3 along the axial direction of the base, the fixed substrate 1 is fixed at one end of the linear rail 3 on the base 4, and the movable substrate 2 can horizontally slide back and forth on the linear rail 3 through the bottom sliding block 7; the fixed base plate 1 and the movable base plate 2 are respectively provided with a positioning pin 6, and the positioning pins 6 are fixedly connected with bolts and nuts in a matching manner, so that the concentricity of the tube plates 9 at the two ends and the supporting plate 10 in the middle is ensured to be consistent, and the concentricity of the tube plates 9, the supporting plate 10 and the shell heat exchanger cylinder is further ensured; the fixed lifting platform 5 is arranged between the two base plates, so that the height of the outer sleeve heat exchanger cylinder is ensured to be a set height, and the concentricity of the outer sleeve heat exchanger cylinder and the tube plate 9 and the supporting plate 10 fixed on the device is ensured to be consistent.

Specifically, the method comprises the following steps:

this semi-automatic group of shell and tube heat exchanger is to device has adopted one end tube sheet 9 to pass through fixed base plate 1 fixedly, other tube sheets 9 and backup pad 10 all carry out the group through the removal base plate 2 that can only front and back horizontal migration on the line rail 3 to operate, at the directional transfer installation tube sheet 9 and the backup pad 10 in-process through removing base plate 2, usable removal base plate 2 is at the locking portion 8 on the line rail slide, with removing base plate 2 locking on the line rail slide, the stability of removing base plate 2 when having guaranteed to use static state in the assembly process, keep the not skew of concentricity when fixing fixed backup pad 10, tube sheet 9 and heat exchanger barrel.

Meanwhile, positioning pins 6 corresponding to each other are arranged on the fixed base plate 1 and the movable base plate 2 to serve as positioning devices, the positioning pins 6 are protruded structures corresponding to each other on the fixed base plate 1 and the movable base plate 2, and when the tube plates 9 and the supporting plates 10 at two ends are installed, the protruded structures penetrate through corresponding hole positions on the tube plates 9 and the supporting plates 10 and then are connected with the bolt nuts through the protruded structures in a matched mode, and the tube plates 9 and the supporting plates 10 are positioned and fixed. Through the steerable tube sheet 9 of positioner with the backup pad 10 group one by one the in-process keep the concentricity unanimous, at specific group to the work in, the operation that the management and control position cooperateed and is connected above one step of round steel and tube sheet 9 and the backup pad 10 in addition to further promote the precision of group to.

The movable base plate 2 and the fixed base plate 1 are respectively composed of a perforated steel plate part and a stable reinforcing frame part, the effect of the stable reinforcing frame is mainly to keep the rigidity and the stability of the perforated steel plate in the vertical direction on the base, and the movable base plate 2 and the fixed base plate 1 are guaranteed to have the required stability strength in the operation process. The check holes on the surfaces of the steel plates with the holes on the movable base plate 2 and the fixed base plate 1 are uniformly distributed, the positions of the check holes correspond to each other, the hole positions of the overlapped parts on the tube plate 9 and the support plate 10 also correspond to each other, whether the holes in the tube plate 9 and the support plates 10 correspond to each other or not is checked, the quality of a product is guaranteed, and the inserting work of a later-stage heat exchange tube can be smoothly carried out. The firm muscle frame that adds is including setting up in the vertical muscle frame that adds on foraminiferous steel sheet both sides limit, and two vertical muscle frame tops that add are connected through a connecting block, and vertical muscle frame surface that adds is provided with the fretwork hole. The side fixedly connected with side direction of vertical muscle frame adds the muscle frame, on fixed baseplate 1 the side direction adds the muscle frame and passes through the connecting block to be connected to with base 4 fixed connection, on the removal base plate 2 the side direction adds the muscle frame and passes through the connecting block to be connected. Fixed baseplate 1 and the foraminiferous steel sheet and the steel support body that remove base plate 2 all adopted are built and are formed, and have still adopted the fretwork design on the vertical support body, and non-solid body material, the main objective is save set's preparation material, and the mode that adopts vertical reinforcement frame and side direction reinforcement frame can reach the required muscle intensity that adds of satisfying the device, reaches the purpose that the device was installed stably. The height of the lateral reinforcement frame is more than 1/2 of the height of the vertical reinforcement frame, and the lateral reinforcement frame with the same height as the vertical reinforcement frame can be manufactured, but the material is saved, and the actual height only needs to reach the reinforcement strength required by production.

The base 4 is formed by mutually and fixedly connecting two parallel I-shaped steels through iron plates, and a threaded hole is arranged right above the I-shaped steel and matched with a screw to fix a track above the I-shaped steel. The size of fixed baseplate 1 is the same with removal baseplate 2, and the sectional area of perpendicular to base axial horizontal direction is less than the area of tube sheet 9 and backup pad 10 to in the installation, the management and control position on tube sheet 9 and backup pad 10 alternates and go on smoothly of fixed round steel work.

The fixed lifting platform 5 is beneficial to keeping the concentricity of the tube plate 9, the support plate 10 and the outer sleeve heat exchanger barrel consistent, and the heat exchanger barrel can be sleeved outside after the assembly operation of the tube plate 9 and the support plate 10 is completed, so that the fixed lifting platform 5 can be lifted to support the heat exchanger barrel at a required height in the fixed welding process, and the gravity center offset of the heat exchanger barrel is prevented.

The utility model discloses a concrete operating method as follows:

1. positioning the tube plate 9 through the positioning pin 6 on the fixed base plate 1, and fixing the tube plate 9 on the fixed base plate 1 by using bolts and nuts;

2. positioning the support plate 10 by moving the positioning pins 6 on the base plate 2, and fixing the support plate 10 on the moving base plate 2 by using bolts and nuts;

3. pushing the movable substrate 2, moving the movable substrate for a corresponding distance, enabling the support plate 10 to be close to the tube plate 9 to be at a proper position, locking the movable substrate 2 on the linear rail slide way through the locking part 8, and enabling the round steel 11 to penetrate through corresponding control hole positions on the tube plate 9 and the support plate 10 to be concentrically fixed and to be fixed through spot welding;

4. the supporting plate 10 on the moving substrate 2 is removed, the locking part 8 of the moving substrate 2 on the linear rail slideway is loosened, and the moving substrate 2 is pushed back to the mounting position;

5. sequentially repeating the steps 2, 3 and 4 to ensure that the subsequent supporting plate 10 passes through the round steel 11 and is firmly fixed at a proper position by spot welding;

6. removing the movable base plate 2, sleeving the heat exchanger cylinder outside the heat exchanger support plate 10, connecting the end of the heat exchanger cylinder with the heat exchanger tube plate 9 fixed on the fixed base plate 1, lifting the plane of the lifting table 5, supporting the heat exchanger cylinder, and ensuring the concentricity of the tube plate 9, the support plate 10 and the outer sleeved heat exchanger cylinder to be consistent;

7. through the locating pin 6 on the removal base plate 2, the location tube sheet 9 is guaranteed concentric, uses bolt and nut to fix tube sheet 9 on removing base plate 2, promotes to remove base plate 2, makes tube sheet 9 be close to backup pad 10 in the other end position of heat exchanger barrel, still makes round steel 11 pass the management and control hole site on tube sheet 9 to remove base plate 2 locking on the line rail slide, finally, the tube sheet 9 at both ends is equallyd divide do not to carry out spot welding with the both ends of heat exchanger barrel and fixes.

8. At this time, the centers of the tube plate 9, the support plate 10 and the tube plate 9 are all on the same axis, the centers of the hole sites on the tube plate 9 and the support plate 10 are aligned, and the concentricity of the externally sleeved heat exchanger cylinder, the tube plate 9 and the support plate 10 is also kept consistent, so that the assembly is completed. Note: the checking holes 12 on the fixed base plate and the movable base plate can be used for testing whether the hole positions of the tube holes on the tube plate 9 and the support plate 10 in the assembling process correspond to each other according to the smoothness of insertion by using the heat exchange tubes to freely penetrate through the checking holes 12 in a testing mode in the tube plate assembling operation process.

The above description is only an exemplary embodiment of the present disclosure, and is only a part of the embodiments of the present disclosure, not all embodiments, and the scope of the present disclosure is not limited thereto. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure are intended to be included within the scope of the present disclosure. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. The utility model provides a semi-automatic group of shell and tube heat exchanger is to device, is in including base (4) and setting auxiliary device on base (4), its characterized in that, be provided with two parallel line rails (3) along its axial on base (4), base (4) are located the one end of line rail (3) is provided with PMKD (1), still be provided with on base (4) and follow horizontal gliding removal base plate (2) around line rail (3), PMKD (1) with all be equipped with the tube sheet positioner who corresponds the assurance concentricity that sets up in opposite directions on removal base plate (2), PMKD (1) with still be provided with fixed elevating platform (5) between removal base plate (2).

2. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 1, characterized in that the tube plate positioning device comprises positioning pins (6) distributed on the fixed base plate (1) and the moving base plate (2).

3. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 1, characterized in that the mobile base plate (2) is provided with a locking part (8) for locking the mobile base plate (2) on a track slide.

4. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 1, characterized in that the moving base plate (2) and the fixed base plate (1) each comprise a perforated steel plate and a stabilizing reinforcing frame.

5. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 4, characterized in that the surface of the steel plate with holes is evenly distributed with checking holes (12), and the positions of the checking holes (12) on the movable base plate (2) and the fixed base plate (1) correspond.

6. The semi-automatic pairing device of a shell-and-tube heat exchanger as claimed in claim 4, wherein the stable reinforcement frame comprises vertical reinforcement frames arranged on two sides of the perforated steel plate, the tops of the two vertical reinforcement frames are connected through a connecting block, and hollow holes are arranged on the surface of the vertical reinforcement frame.

7. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 6, characterized in that lateral stiffening frames are fixedly connected to the sides of the vertical stiffening frames, the lateral stiffening frames on the fixed base plate (1) are connected through connecting blocks and are fixedly connected to the base (4), and the lateral stiffening frames on the movable base plate (2) are connected through connecting blocks.

8. The semi-automatic pairing device of a shell and tube heat exchanger of claim 7, wherein the height of the lateral ribbed frame is more than 1/2 of the height of the vertical ribbed frame.

9. Semi-automatic pairing device of a shell and tube heat exchanger according to claim 1, characterized in that the base (4) comprises two i-beams parallel to each other, which are fixedly connected to each other by means of iron plates.

10. Semi-automatic pairing device for shell-and-tube heat exchangers according to claim 1, characterized in that the fixed base plate (1) and the movable base plate (2) are both made of steel, and the fixed base plate (1) and the movable base plate (2) are the same in size.

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