CN114952221A - Heat exchanger core-pulling device and heat exchanger core-pulling method - Google Patents
Heat exchanger core-pulling device and heat exchanger core-pulling method Download PDFInfo
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- CN114952221A CN114952221A CN202210592129.0A CN202210592129A CN114952221A CN 114952221 A CN114952221 A CN 114952221A CN 202210592129 A CN202210592129 A CN 202210592129A CN 114952221 A CN114952221 A CN 114952221A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000000087 stabilizing effect Effects 0.000 claims description 27
- 238000001514 detection method Methods 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 description 41
- 239000010959 steel Substances 0.000 description 41
- 238000003466 welding Methods 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000000670 limiting effect Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a building engineering technical field particularly, relates to a heat exchanger device of loosing core and heat exchanger method of loosing core, including bracket platform, stable frame and traction piece, the bracket platform is including drawing the track, stable frame is located draw orbital top, the one end detachable of traction piece connect in the bracket platform, the other end of traction piece connect in stable frame, with pass through traction piece drives stable frame follows draw the track to be rectilinear movement, stable frame is used for with heat exchanger tube bank fixed connection. The application aims to solve the problem that core-pulling detection of a large-scale heat exchanger faces at present, and provides a core-pulling device and a core-pulling method of the heat exchanger.
Description
Technical Field
The application relates to the technical field of constructional engineering, in particular to a heat exchanger core-pulling device and a heat exchanger core-pulling method.
Background
At present, large heat exchangers are widely applied to the technical field of engineering. In the use process of a large heat exchanger, core-pulling detection is often required for the heat exchanger, namely, a tube bundle in the heat exchanger is taken out of the heat exchanger for detection and various inspection items are performed. However, the large heat exchanger has a relatively large tube bundle, which is not easy to move, and the tube bundle is prevented from colliding as much as possible during the moving and detecting processes of the tube bundle of the heat exchanger, so as to avoid the damage of the tube bundle of the heat exchanger, which brings great difficulty to the loose core detection of the large heat exchanger.
Disclosure of Invention
The application aims to solve the problem that core-pulling detection of the existing large heat exchanger faces, and provides a core-pulling device and a core-pulling method for the heat exchanger.
In order to achieve the purpose, the following technical scheme is adopted in the application:
one aspect of the application provides a heat exchanger device of loosing core, including bracket platform, stable frame and traction piece, the bracket platform is including pulling the track, stable frame is located pull orbital top, the one end detachable of traction piece connect in the bracket platform, the other end of traction piece connect in stable frame, in order to pass through traction piece drives stable frame follows pull the track and be rectilinear movement, stable frame is used for with heat exchanger tube bank fixed connection.
Optionally, the bracket platform further includes an end column, one end of the traction rail is fixed to the end column, the end column has a traction piece connecting end, and the traction piece connecting end is located above the traction rail.
The technical scheme has the beneficial effects that: therefore, the connecting position is specially provided for the traction piece through the end column, when the heat exchanger tube bundle is pulled outwards from the heat exchanger, the connecting line of the two ends of the traction piece can be parallel to the traction track, and the heat exchanger tube bundle is further enabled to move without deviating from the direction easily.
Optionally, the carriage platform includes two mutually parallel arrangement draw the track, two draw the track all to have the spigot surface, the spigot surface sets up for the horizontal plane slope, two the spigot surface all is used for towards the stable frame sets up.
The technical scheme has the beneficial effects that: that is to say, the spigot surface orientation is the slant upwards to towards two between the track that draws, like this, make the spigot surface both play the limiting displacement in vertical direction to the heat exchanger tube bank, played the limiting displacement in the horizontal direction again, further make the removal of heat exchanger tube bank be difficult for deviating from the track.
Optionally, a plurality of guide rollers are mounted on the guide surface, each guide roller is distributed in the length direction of the traction track, the axial direction of each guide roller is parallel to the guide surface, and the axial direction of each guide roller is perpendicular to the length direction of the traction track.
The technical scheme has the beneficial effects that: make heat exchanger tube bank when drawing orbital removal, be rolling friction through setting up the guide roll with drawing between the track, and then reduce the wearing and tearing that probably produce heat exchanger tube bank.
Optionally, a plurality of platform columns are installed at the bottom of the traction track, each platform column is distributed in the length direction of the traction track, an inclined support rod is connected between two adjacent platform columns, the top end of one of the two adjacent platform columns is connected to one end of the inclined support rod, and the bottom end of the other of the two adjacent platform columns is connected to the other end of the inclined support rod.
The technical scheme has the beneficial effects that: thus, the strength of the entire carrier platform can be increased.
Optionally, the stabilizing frame includes a main body frame, and the main body frame is a cubic frame.
The technical scheme has the beneficial effects that: when the heat exchanger wire harness stabilizing device is used, one edge of the main body frame is arranged between the two traction tracks, and other edges of the main body frame connected with the edge are lapped on the two traction tracks, so that after the stabilizing frame is connected with the heat exchanger tube bundle, due to the limiting effect between the main body frame and the two traction tracks, the heat exchanger wire harness is not easy to roll.
Optionally, the stabilizing frame includes a terminal screw connecting end, the main body frame has a first connecting side for facing the heat exchanger tube bundle, and the terminal screw connecting ends are disposed at four corners of the first connecting side.
The technical scheme has the beneficial effects that: the special jackscrew connecting end is convenient for stabilizing the frame and being connected with the heat exchanger tube bank.
Optionally, the stabilizing frame includes a connecting ring, the main body frame has a second connecting side for being disposed away from the heat exchanger tube bundle, two corners of the second connecting side are both located according to the connecting ring, and the two connecting rings are disposed diagonally.
The technical scheme has the beneficial effects that: like this, can set up two and pull the piece, two pull the piece and all be connected with the bracket platform, and two pull the piece and be connected with two go-between respectively.
Optionally, the traction piece is a hand hoist.
The technical scheme has the beneficial effects that: the need to reduce labor intensity is considered.
Another aspect of the present application provides a heat exchanger core pulling method, which is implemented by applying the heat exchanger core pulling device provided in the embodiment of the present application, and the method includes:
fixing the heat exchanger core-pulling device on a port of a heat exchanger;
separating a flange of the heat exchanger tube bundle from a port of the heat exchanger, and fixedly connecting the flange with the stabilizing frame;
installing a traction piece so that one end of the traction piece is fixed to the stable frame and the other end of the traction piece is fixed to the bracket platform;
and starting the traction piece, and drawing the heat exchanger tube bundle to a preset position on the traction track.
The technical scheme provided by the application can achieve the following beneficial effects:
according to the heat exchanger core pulling device and the heat exchanger core pulling method, traction power is provided through the traction piece, the placement position of the heat exchanger tube bundle is provided through the bracket platform so as to facilitate detection, the frame is stabilized, the traction track guides the moving direction of the heat exchanger tube bundle, the heat exchanger tube bundle is not prone to falling off from the bracket platform or colliding with surrounding equipment, and therefore core pulling detection of a large heat exchanger is completed while the heat exchanger tube bundle is not damaged.
Additional features of the present application and advantages thereof will be set forth in the description which follows, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It should be apparent that the drawings in the following description are embodiments of the present application and that other drawings may be derived from those drawings by a person of ordinary skill in the art without inventive step.
Fig. 1 is a schematic front view structure diagram of an embodiment of a core pulling device for a heat exchanger according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of one embodiment of a stabilizing frame attachment traction element provided in accordance with an example of the present application;
FIG. 3 is a schematic left side view of an embodiment of a pallet platform according to an embodiment of the present disclosure;
FIG. 4 is a schematic top view of the structure of FIG. 3;
fig. 5 is a flowchart of an implementation manner of a core pulling method for a heat exchanger according to an embodiment of the present application.
Reference numerals:
1-a stabilizing frame; 2-a traction track;
3-end column; 4-a stable steel plate;
5-a cross beam; 6-a body frame;
7-jackscrew connecting end; 9-a traction member;
10-a connecting ring; 11-top thread;
12-a diagonal bracing bar; 13-a foundation slab;
14-platform column; 15-a guide roll;
16-heat exchanger tube bundle.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1 to 4, one aspect of the present application provides a heat exchanger core pulling device, including bracket platform, stable frame 1 and traction piece 9, the bracket platform is including drawing track 2, stable frame 1 is located draw the top of track 2, the one end detachable of traction piece 9 connect in the bracket platform, the other end of traction piece 9 connect in stable frame 1, in order to pass through traction piece 9 drives stable frame 1 is followed draw track 2 to be rectilinear movement, stable frame 1 is used for with heat exchanger tube bank 16 fixed connection.
The heat exchanger core-pulling device is arranged at a port of a heat exchanger and can be fixed to the bottom surface through fixing pieces such as expansion bolts when the heat exchanger core-pulling device is used, a heat exchanger tube bundle 16 comprises a heat exchange tube and a flange, the heat exchange tube is fixedly connected with the flange, the heat exchange tube extends into a shell of the heat exchanger through the port of the heat exchanger, the flange is connected with the port of the heat exchanger through a connecting piece, when the tube bundle needs to be taken out of a large heat exchanger, the connecting piece for connecting the flange with the port of the heat exchanger is taken down, the flange is separated from the port, then a stable frame 1 is fixedly connected with the flange through the connecting piece, a traction piece 9 is started, the heat exchanger tube bundle 16 is gradually pulled to a traction track 2, and core-pulling detection is carried out after the heat exchanger tube bundle 16 is completely moved to the traction track 2; after core-pulling detection is completed, one end of the traction piece 9 connected with the bracket platform is separated from the bracket platform, the traction piece 9 is connected with the shell of the heat exchanger, the traction piece 9 is started again, the heat exchange tube is sent back into the shell, and then the flange is connected with the port.
The application provides a heat exchanger device of loosing core provides through drawing 9 and pulls power, provides the position of placing of heat exchanger tube bank 16 through the bracket platform so that detect, and stable frame 1 and the moving direction who draws track 2 guide heat exchanger tube bank 16 make heat exchanger tube bank 16 be difficult for dropping or producing with equipment on every side from the bracket platform and collide with, and then realize when not damaging heat exchanger tube bank 16, accomplish the detection of loosing core to large heat exchanger.
Optionally, the bracket platform further includes an end column 3, one end of the traction rail 2 is fixed to the end column 3, the end column 3 has a traction member connection end, and the traction member connection end is located above the traction rail 2. Therefore, the end columns 3 are specially used for providing connecting positions for the traction pieces 9, when the heat exchanger tube bundle 16 is pulled outwards from the heat exchanger, connecting lines of two ends of the traction pieces 9 can be parallel to the traction track 2, and the heat exchanger tube bundle 16 is further enabled to move without deviating from the direction easily. In the embodiment of the present application, preferably, the end column 3 is made of H300 × 300 steel, the bottom end of the end column 3 is provided with the stability steel plate 4, the stability steel plate 4 is preferably 20mm thick, 400mm × 400mm steel, the end column 3 is connected with the stability steel plate 4 in a welding cost manner, the end column 3 is made of 2H 300 × 300 steel, the height of the heat exchanger is 1.3-1.5 times of the standard height, for example, when the diameter of the heat exchanger is 2000mm, the elevation of the end column 3 is 2600 mm.
Optionally, the cradle platform includes two mutually parallel traction rails 2, and each of the two traction rails 2 has a guide surface, the guide surface is disposed obliquely with respect to a horizontal plane, and both of the guide surfaces are disposed toward the stabilizing frame 1. That is to say, the orientation of the guiding surface is obliquely upward and faces between the two traction tracks 2, so that the guiding surface not only has a limiting effect on the heat exchanger tube bundle 16 in the vertical direction, but also has a limiting effect on the horizontal direction, and further, the movement of the heat exchanger tube bundle 16 is not easy to deviate from the tracks. Preferably, the traction rail 2 is made of H200X 200 steel, the traction rail 2 is welded on the end column 3, and the length of the traction rail 2 is preferably 6000 mm. Preferably, the included angle between the guide surface and the horizontal plane is selected according to the diameter of the heat exchanger, can be adjusted according to requirements, and can be 15-60 degrees, and preferably is 30 degrees.
Optionally, a plurality of guide rollers 15 are installed on the guide surface, each guide roller 15 is distributed in the length direction of the traction track 2, the axial direction of the guide roller 15 is parallel to the guide surface, and the axial direction of the guide roller 15 is perpendicular to the length direction of the traction track 2. The guide rollers 15 are arranged to ensure that the heat exchanger tube bundle 16 is in rolling friction with the traction rail 2 when the traction rail 2 moves, so that the abrasion to the heat exchanger tube bundle 16 possibly generated is reduced. In the embodiment of the application, the number of the guide rollers 15 can be selected according to the length of the traction track 2, and can be 10-50, and the like; preferably, the top of guide roll 15 sets up the square steel, and the heat exchanger is loosing core the in-process, can not have the friction removal smoothly, realizes easily loosing core, and what need notice is that, heat exchanger tube bank 16 support position and square steel contact, the tube bank can not contact and friction.
Optionally, a plurality of platform columns 14 are installed at the bottom of the traction track 2, each platform column 14 is distributed in the length direction of the traction track 2, an inclined support rod 12 is connected between two adjacent platform columns 14, the top end of one of the two adjacent platform columns 14 is connected to one end of the inclined support rod 12, and the bottom end of the other of the two adjacent platform columns 14 is connected to the other end of the inclined support rod 12. Thus, the strength of the entire carrier platform can be increased. The platform upright column 14 is made of H200X 200 section steel, preferably, the height of the platform upright column 14 is 1000mm, and the elevation is level according to the elevation of the tube opening bottom of the core-pulling heat exchanger of the heat exchanger, and is selected according to the elevation of the heat exchanger. The level of the top end of the traction rail 2 is 1.2m, i.e. 1200 mm. The platform stand 14 that pulls track 2 and another pull between the platform stand 14 of track 2 below can be connected through crossbeam 5, and crossbeam 5 adopts and takes the angle welding, can the mitre slope as required to form according to the inclination welding, there is soleplate 13 at the preferred welding in platform stand 14's bottom, soleplate 13 chooses for use 20mm thick, 300mm steel sheet. The inclined supporting rod 12 is formed by welding angle steel of 100mm multiplied by 100mm, the length of the angle steel is blanked according to the designed position, and the length of the part is not restricted. All adopt welding mode to connect between each part of bracket platform, connect the equal full welding that requires of contact point, ensure that the intensity in the work satisfies the needs.
Optionally, the stabilizing frame 1 includes a main body frame 6, and the main body frame 6 is a cubic frame. When the heat exchanger wire harness stabilizing device is used, one edge of the main body frame 6 is arranged between the two traction tracks 2, and other edges of the main body frame 6 connected with the edge are lapped on the two traction tracks 2, so that after the stabilizing frame 1 is connected with the heat exchanger tube bundle 16, the heat exchanger wire harness is not easy to roll due to the limiting effect between the main body frame 6 and the two traction tracks 2. In the embodiment of the application, the stable frame 1 is preferably made of seamless steel pipes with the diameter of 26.7mm multiplied by 3.91mm, the main body frame 6 is a cube, each surface is a square, each surface is provided with an inclined strut, the stability of the frame is ensured, the connection point of each seamless steel pipe is welded, and the welding requirement is full-length welded. The specification of every face of main body frame 6 is all unanimous, and specification size is according to the 11 rigidity fixed block central point of four jackscrews of heat exchanger flange puts the size and decides, considers every heat exchanger position inconsistent, does not explain in detail, and four angles of same face of main body frame 6 are connected with four jackscrews detachable of the flange of heat exchanger respectively during the installation.
Optionally, the stabilizing frame 1 includes jackscrew connecting ends 7, the main body frame 6 has a first connecting side for facing the heat exchanger tube bundle 16, and the jackscrew connecting ends 7 are disposed at four corners of the first connecting side. The specially arranged jackscrew connecting end 7 is convenient for connecting the stabilizing frame 1 with the heat exchanger tube bundle 16. In the present embodiment, the terminal screw connecting end 7 is preferably a threaded end.
Optionally, the stabilizing frame 1 includes a connecting ring 10, the main body frame 6 has a second connecting side for being disposed away from the heat exchanger tube bundle 16, two corners of the second connecting side are located at the same position as the connecting ring 10, and the two connecting rings 10 are disposed diagonally. In this way, two traction members 9 may be provided, both traction members 9 being connected with the carrier platform, and both traction members 9 being connected with two connection rings 10, respectively. The diameter of the preferable connecting ring 10 is phi 50mm, the connecting ring 10 is made of round steel or threaded steel with the diameter of phi 25mm, the round steel or the threaded steel is manufactured through bending and is welded on the main body frame 6, and the connecting ring 10 plays a role of a traction point.
Optionally, the traction piece 9 is a hand hoist. In view of the need to reduce labor intensity, a 1 ton chain block is preferably used for drawing. The drawing is to draw in the direction away from the heat exchanger in the core-pulling process, and the drawing in the direction of the heat exchanger is adopted in the reloading process, so that the core pulling and reloading of the heat exchanger are realized.
As shown in fig. 5, another aspect of the present application provides a heat exchanger core pulling method, which is implemented by applying the heat exchanger core pulling device provided in the embodiment of the present application, and the heat exchanger core pulling method includes the following steps:
step 100: fixing the heat exchanger core-pulling device on a port of a heat exchanger;
step 200: separating the flange of the heat exchanger tube bundle 16 from the port of the heat exchanger and fixedly connecting the flange with the stabilizing frame 1;
step 300: installing a traction piece 9 so that one end of the traction piece 9 is fixed on the stable frame 1 and the other end is fixed on the bracket platform;
step 400: the pulling member 9 is activated and pulls the heat exchanger tube bundle 16 to a predetermined position on the pulling track 2.
The heat exchanger core-pulling method is realized by applying the heat exchanger core-pulling device provided by the application, the traction part 9 provides traction power, the bracket platform provides the placement position of the heat exchanger tube bundle 16 so as to facilitate detection, the stable frame 1 and the traction track 2 guide the moving direction of the heat exchanger tube bundle 16, so that the heat exchanger tube bundle 16 is not easy to fall off from the bracket platform or collide with surrounding equipment, and the core-pulling detection of a large heat exchanger is completed while the heat exchanger tube bundle 16 is not damaged.
In order to better explain the heat exchanger core-pulling device and the heat exchanger core-pulling method provided by the application, the application also provides an application example of the heat exchanger core-pulling device and the heat exchanger core-pulling method. In this application example, the bracket platform is also referred to as a heat exchanger core-pulling bracket platform, the stabilizing frame 1 is also referred to as a heat exchanger orientation-pulling head stabilizing frame, the end column 3 is also referred to as 2. the heat exchanger core-pulling bracket platform end column, the pulling track 2 is also referred to as a heat exchanger core-pulling bracket angle-inclined cross beam track, the platform column 14 is also referred to as a heat exchanger core-pulling bracket platform column, the inclined support rod 12 is also referred to as a heat exchanger core-pulling bracket platform stability inclined strut, the stability steel plate 4 is also referred to as a bracket platform base plate, and the guide roller 15 is also referred to as a heat exchanger core-pulling platform cross beam fixing roller shaft. In the application example, 1. the bracket platform device in the construction method of the heat exchanger core-pulling traction process is integrally divided into two parts, namely a first part: a heat exchanger core-pulling bracket platform; a second part: the heat exchanger is stabilized in the core-pulling process and the heat exchanger orientation is stabilized to pull the head to stabilize the frame.
Heat exchanger core pulling bracket platform end stand: adopt H300X 300 shaped steel preparation to form, the bottom sets up stable steel sheet, and H shaped steel adopts the welding expense mode with the bottom plate, and the stand adopts 2H 300X 300 shaped steel preparations to form, and height value heat exchanger elevation 1.3 times, according to the work needs of reality, this device stand elevation is 2600mm, (heat exchanger diameter 2000 mm).
The heat exchanger core-pulling traction bracket angle inclines the beam track: the steel rail is made of H200X 200 section steel, one section of beam H section steel is welded on an H300X 300 section steel upright post, and the length of the rail is 6000mm long platform. The lower end adopts 4 sets of platform upright posts as supports. The crossbeam track should incline certain angle, generally adopts the slope 30 as required, and the gradient of this angle is selected according to the diameter of heat exchanger, nevertheless not being in the scope of 30, can adjust as required. The inclination of the device is preferably 30 degrees.
Heat exchanger core pulling bracket platform stand: the vertical column is made of H200X 200 section steel, the height of the vertical column is 1000mm, the elevation is level according to the elevation of the tube opening bottom of the core-pulling heat exchanger of the heat exchanger, and the elevation is selected according to the elevation of the heat exchanger. The integral platform elevation is 1.2m, namely 1200 mm. The upright post and the cross beam are welded at an angle, the slope can be obliquely cut as required, and the upright post and the cross beam are welded at an inclined angle. The bottom is welded with the foundation slab.
Heat exchanger core pulling bracket platform stability bracing: the angle steel is welded by angle steel with the size of 100mm multiplied by 100mm, the length of the angle steel is blanked according to the designed position, the length of the part is not restricted, and only the top is required to be positioned on the foundation slab. Ensuring overall performance.
Heat exchanger core pulling end stand column and bracket platform foundation slab: traction bracket platform port stand foundation slab chooses δ ═ 20mm thick steel plate for use, specification: 400mm is multiplied by 400mm, and the upright column section steel is welded at the center of the foundation slab; traction bracket platform crossbeam support post foundation slab chooses delta ═ 20mm thick steel plate, specification: 300mm is multiplied by 300mm, and the cross beam upright post of the traction bracket platform is welded and fixed at the center of the foundation slab.
The heat exchanger is loosed core and is drawn the fixed roller of platform crossbeam: the roll is arranged to track intermittent type on the platform crossbeam, and fixed roll axle top sets up the square steel, and the heat exchanger is at the in-process of loosing core, and frictionless removal can be smoothly, realizes easily loosing core. The method comprises the following steps: the supporting position of the heat exchanger tube bundle is in contact with the square steel, and the tube bundle cannot be contacted and rubbed.
The heat exchanger is loosed core and is stabilized heat exchanger position traction head stabilizing frame: the traction head stabilizing frame is made of phi 26.7mm multiplied by 3.91mm, the frame is cubic, each face is square, each face is provided with an inclined strut, the stability of the frame is ensured, each seamless steel pipe connecting point is welded, and the welding requirement is full welding. The specification of each surface of the frame is consistent, the specification and the size are determined according to the central position size of four jackscrew rigid fixing blocks of the flange of the heat exchanger, and the position inconsistency of each heat exchanger is considered, so that detailed description is omitted. The size of the traction head of the device is manufactured according to 1080mm, and the actual specific size is considered. The manufacturing specification of the stable frame is not limited to the size.
The heat exchanger core-pulling traction bracket beam interval requirement is as follows: the crossbeam interval data of inclination adopt 1/3 department's tube bank diameter, and this pallet platform net spacing is 400mm, but this interval is not limited to this data, adjusts according to actual needs. Meanwhile, the inclination angle is adjusted according to the diameter specification, and the requirement of core-pulling work is met.
The connection modes of the heat exchanger core-pulling traction bracket and the heat exchanger tube bundle stabilizing frame are all welding modes, and the connection contact points all require full welding. Ensuring the strength in operation to meet the requirements.
The diagonal angle of the stable frame is provided with a ring with the diameter of 50mm, the ring can be made of round steel with the diameter of 25mm or screw-thread steel, the ring is manufactured by bending, the ring is embedded on the diagonal line in a welding mode, the ring plays a traction point for traction, the requirement for reducing labor intensity is considered, and the 1t chain block is adopted for traction. The drawing is to draw towards the direction of the platform upright post under the stress in the core-pulling process, and the drawing towards the direction of the heat exchanger is adopted in the repacking process, so that the core pulling and the repacking of the heat exchanger are realized.
According to the designed process platform device, the process platform device is arranged at the equipment port of the heat exchanger and is fixed on the ground, and the expansion bolts can be adopted for fixing the foundation slab and the ground. Opening a flange at a port of the heat exchanger, completing the first step of jackscrew traction by adopting a jackscrew rotating process method at the port, enabling the heat exchanger tube bundle to be separated from a heat exchanger shell, setting a traction point at the position of the jackscrew at the port of the heat exchanger, and utilizing a manual traction hoist to draw outwards, so that the heat exchanger tube bundle is pulled out from the heat exchanger shell.
The heat exchanger tube bundle (core-pulling component) is returned to the installation after finishing various inspections, tests and acceptance, and when the heat exchanger tube bundle is returned to the installation, the traction bracket platform device with the design is also adopted, and the stable position frame of the traction head is used for traction in the direction of the heat exchanger to finish the returning installation of the heat exchanger tube bundle.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. Heat exchanger device of loosing core, its characterized in that includes bracket platform, stable frame and pulls the piece, the bracket platform is including pulling the track, stable frame is located pull orbital top, the one end detachable that pulls connect in the bracket platform, the other end that pulls connect in stable frame, in order to pass through pull a drive stable frame follows it does rectilinear movement to pull the track, stable frame be used for with heat exchanger tube bank fixed connection.
2. The heat exchanger core pulling device according to claim 1, wherein the carriage platform further comprises an end column, one end of the traction rail is fixed to the end column, the end column is provided with a traction piece connecting end, and the traction piece connecting end is located above the traction rail.
3. The heat exchanger core pulling device according to claim 1, wherein the carriage platform comprises two mutually parallel traction rails, each of the two traction rails having a guide surface, the guide surfaces being arranged obliquely with respect to a horizontal plane, and both of the guide surfaces being arranged toward the stabilizing frame.
4. The heat exchanger core pulling device according to claim 3, wherein a plurality of guide rollers are mounted on the guide surface, the guide rollers are distributed in the length direction of the traction track, the axial direction of each guide roller is parallel to the guide surface, and the axial direction of each guide roller is perpendicular to the length direction of the traction track.
5. The heat exchanger core pulling device according to claim 3, wherein a plurality of platform columns are installed at the bottom of the traction track, each platform column is distributed in the length direction of the traction track, an inclined support rod is connected between two adjacent platform columns, the top end of one of the two adjacent platform columns is connected to one end of the inclined support rod, and the bottom end of the other of the two adjacent platform columns is connected to the other end of the inclined support rod.
6. The heat exchanger core pulling device according to claim 1, wherein the stabilizing frame comprises a main body frame, and the main body frame is a cubic frame.
7. The heat exchanger core pulling device according to claim 6, wherein the stabilizing frame comprises a top wire connecting end, the main body frame is provided with a first connecting side used for facing the heat exchanger tube bundle, and the top wire connecting end is arranged at the positions of four corners of the connecting side.
8. The heat exchanger core pulling device according to claim 6, wherein the stabilizing frame comprises connecting rings, the main body frame is provided with a second connecting side for deviating from the heat exchanger tube bundle, two connecting rings are arranged at two corners of the second connecting side in a diagonal manner according to the connecting rings.
9. The heat exchanger core pulling device according to any one of claims 1 to 8, wherein the traction member is a hand crank block.
10. The heat exchanger core-pulling method is characterized by being realized by applying the heat exchanger core-pulling device according to any one of claims 1 to 9, and the method comprises the following steps:
fixing the heat exchanger core-pulling device on a port of a heat exchanger;
separating a flange of the heat exchanger tube bundle from a port of the heat exchanger, and fixedly connecting the flange with the stabilizing frame;
installing a traction piece so that one end of the traction piece is fixed to the stable frame and the other end of the traction piece is fixed to the bracket platform;
and starting the traction piece, and drawing the heat exchanger tube bundle to a preset position on the traction track.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210592129.0A CN114952221A (en) | 2022-05-27 | 2022-05-27 | Heat exchanger core-pulling device and heat exchanger core-pulling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210592129.0A CN114952221A (en) | 2022-05-27 | 2022-05-27 | Heat exchanger core-pulling device and heat exchanger core-pulling method |
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| CN114952221A true CN114952221A (en) | 2022-08-30 |
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| CN202210592129.0A Pending CN114952221A (en) | 2022-05-27 | 2022-05-27 | Heat exchanger core-pulling device and heat exchanger core-pulling method |
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