CN113714363A

CN113714363A - Flanging equipment for spiral plate heat exchanger core

Info

Publication number: CN113714363A
Application number: CN202111038152.7A
Authority: CN
Inventors: 都跃良; 忻红波; 李凌; 虞世君; 张永辉; 俞晓波
Original assignee: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO LTD
Current assignee: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO LTD
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-11-30
Anticipated expiration: 2041-09-06
Also published as: CN113714363B

Abstract

A flanging device for a core body of a spiral plate heat exchanger comprises a base (1), a rotary table (2), a flanging assembly (3) and a second driving piece, wherein the rotary table (2) is rotatably arranged on the base, and the top surface of the rotary table (2) is a supporting surface (20) for vertically placing and constraining the core body (100) of the spiral plate heat exchanger; the flanging assembly (3) is arranged above the rotating disc (2) in a horizontally moving mode, and comprises a flanging wheel (31) which can move up and down and is used for corresponding to the top end of a spiral plate (110) of the core body and flanging the top end of the spiral plate (110) downwards, and a first driving piece (32) of which the output end is connected with the flanging wheel (31) so as to drive the flanging wheel (31) to move up and down; the second driving piece acts on the flanging assembly (3) to drive the flanging assembly (3) to move horizontally. Compared with the prior art, the flanging device is suitable for flanging of the multilayer spiral plate in small space and small space ranges.

Description

Flanging equipment for spiral plate heat exchanger core

Technical Field

The invention belongs to the technical field of metal flanging, and particularly relates to flanging equipment for a core body of a spiral plate heat exchanger.

Background

The structure that current spiral plate flanging device was disclosed like patent number ZL 201420505088.8's utility model patent (the grant bulletin number is CN204148325U), it includes the base, first riser, turn-ups wheel and locating wheel, first riser has two to set up respectively and stands up relatively at the base both ends, all install the locating wheel at every first riser upper portion both ends, the vertical extension of pivot of locating wheel, vertical two turn-ups wheels that are provided with in every first riser lower part intermediate position, the pivot of turn-ups wheel is perpendicular with first riser, the turn-ups wheel is the round platform shape, the less wheel face of turn-ups wheel diameter that is located the top is towards first riser, the great side wheel face of turn-ups wheel diameter that is located the below is towards first riser, it leaves the gap to be located between two turn-ups wheels with one side. Above-mentioned spiral plate flanging device can improve turn-ups efficiency and turn-ups quality for artifical turn-ups, but to the less spiral plate heat exchanger core flanging of interval between multilayer, the adjacent layer spiral plate have following technical problem:

1. the spinning or stamping die is large, the required space size is large, and the requirement for flanging processing at small space and small space positions cannot be met;

2. the outward flanging processing in the spinning mode needs an external mold for supporting, and the flanging work under the working conditions of multiple layers and small spacing cannot be realized;

3. the existing flanging technology can realize circular or concentric circular flanging processing, and for spiral cylindrical plates, a die needs to be continuously replaced, continuous processing cannot be realized, and the efficiency is very low;

4. in the process of processing the outwards flanged edge formed by stamping, the axial stress on the flanged edge plate is too large, and the risk of axial displacement of the plate exists.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides flanging equipment for a core body of a spiral plate heat exchanger, which is suitable for flanging multiple layers of spiral plates at small intervals and in a small space range.

The technical scheme adopted by the invention for solving the technical problems is as follows: a turn-up apparatus for a spiral plate heat exchanger core, comprising:

a base;

it is characterized by also comprising:

the top surface of the rotary disc is a supporting surface for vertically placing and restraining the core body of the spiral plate heat exchanger on;

the flanging assembly is arranged above the rotating disc in a horizontally movable mode and comprises a flanging wheel which is arranged at the top end of the spiral plate corresponding to the core body and can move up and down and used for flanging the top end of the spiral plate downwards, and a first driving piece of which the output end is connected with the flanging wheel so as to drive the flanging wheel to move up and down, wherein the first driving piece is a hydraulic cylinder or a pneumatic cylinder or an electric motor;

and the second driving piece acts on the flanging assembly to drive the flanging assembly to horizontally move.

When the first driving piece adopts a motor, the output end of the motor is connected with the flanging wheel through a transmission mechanism, and the transmission mechanism converts the rotary motion of the motor into the vertical movement of the flanging wheel; the transmission mechanism is preferably an existing transmission structure such as a screw nut assembly, a gear rack and the like.

In order to restrict the moving direction of the flanging component, the flanging component preferably further comprises a rack and a first slide rail which is restricted on the rack, positioned above the base and extends horizontally and linearly, and the flanging component can be horizontally and movably arranged on the first slide rail.

The second drive is preferably a hydraulic or pneumatic or electric cylinder.

Preferably, the first slide rail is arranged on the rack in a manner of moving up and down, and the second driving piece is arranged on the first slide rail. So, can adjust the height at turn-ups subassembly place according to the size of core for the turn-ups equipment of this application is applicable to the turn-ups of the not unidimensional core.

Preferably, the first sliding rail device further comprises a third driving piece used for driving the first sliding rail to move up and down, the third driving piece comprises a third motor arranged on the rack, a screw rod which is in transmission connection with an output end of the third motor and extends vertically, and a nut in threaded connection with the screw rod, and the nut is connected with the first sliding rail.

Preferably, the two sets of the screw rods and the nuts thereof are respectively arranged corresponding to two ends of the first slide rail.

Furthermore, the device also comprises second slide rails which are arranged on the rack, positioned on two sides of the base and vertically extended, wherein the second slide rails are provided with two parts which respectively correspond to two ends of the first slide rail, and two ends of the first slide rail can be arranged on the second slide rail in a vertically moving manner.

In each of the above schemes, preferably, the flanging wheel has a central axis extending horizontally, the flanging wheel is vertically disposed and can rotate around the central axis, the flanging wheel has a first circular end face opposite to the central axis and a second circular end face with a diameter larger than that of the first circular end face in the axial direction, the centers of the first circular end face and the second circular end face are disposed corresponding to the central axis of the flanging wheel, edges of the first circular end face and the second circular end face are connected through a peripheral wall, a cross section of the peripheral wall is partially in an inward concave arc shape, and the peripheral wall is disposed corresponding to the top end of the spiral plate, so that the top end of the spiral plate is flanged under an action force of downward extrusion of the peripheral wall.

Preferably, the thickness of the flanging wheel in the axial direction is matched with the distance between the spiral plates of the adjacent layers.

The turnup wheels are preferably universal wheels.

In each of the above solutions, in order to improve the flanging efficiency, it is preferable that the flanging assemblies have two and are arranged along the horizontal direction.

In each of the above aspects, in order to facilitate mounting of the core on the base, it is preferable that the base is arranged to be horizontally movable by an external force, and a fourth driving member for providing the external force to drive the base to move is further included. The fourth driving member is preferably a horizontally arranged hydraulic cylinder or a pneumatic cylinder or an electric cylinder.

And finally, a plurality of limiting blocks are arranged on the supporting surface of the turntable at intervals in the circumferential direction, a space for placing the core body of the spiral plate heat exchanger is enclosed between the limiting blocks, and each limiting block is provided with a limiting surface used for contacting with the peripheral wall of the core body.

Compared with the prior art, the invention has the advantages that: the core body of the spiral plate heat exchanger is vertically placed on the rotary disc during flanging by arranging the rotary disc, the flanging wheel of the flanging assembly is aligned to the upper end of the spiral plate of the core body, the flanging wheel is moved downwards to be tightly pressed on the upper end of the spiral plate, then the rotary disc is driven to rotate, flanging of the multilayer spiral plate can be realized, the flanging of the multilayer spiral plate is carried out along with the flanging of the multilayer spiral plate from inside to outside or from outside to inside, and the second driving piece drives the flanging assembly to move horizontally, so that the use is convenient and the continuous processing and forming can be realized; the flanging wheel directly acts on the upper end of the spiral plate without an external die, so that the flanging equipment is suitable for flanging the multilayer spiral plate at small intervals and in a small space range; and the structure is simple, and the implementation is convenient.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a right side view of an embodiment of the present invention;

FIG. 3 is a using state diagram of the core body flanged by the flanging wheel in the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 3, the flanging device for a core of a spiral plate heat exchanger according to the present invention includes a base 1, a rotary table 2, a flanging assembly 3, a frame 4, a first slide rail 11, a second slide rail 12, a second driving member (not shown), a third driving member 5, and a fourth driving member 6.

Wherein the frame 4 is in a door shape, the base 1 is provided at the bottom center of the frame 4, and the base 1 is arranged to be horizontally movable in the front-rear direction under an external force to enter and exit the frame 4. The fourth driving member 6 is a hydraulic cylinder horizontally disposed, and an output end thereof is connected to the base 1 to provide the external force.

A rotary plate 2 is horizontally provided on the base 1 in a manner rotatable around the center thereof, and the top surface of the rotary plate 2 is a support surface 20 on which the core 100 of the spiral plate heat exchanger is vertically placed and restrained. Specifically, a plurality of limiting blocks 21 arranged circumferentially at intervals are arranged on the supporting surface 20 of the turntable 2, a space for the core body 100 of the spiral plate heat exchanger to be placed therein is enclosed between each limiting block 21, and each limiting block 21 has a limiting surface 211 used for contacting with the outer peripheral wall of the core body 100. In this embodiment, the turntable 2 is rotated by the conventional technology, for example, the motor drives the turntable to rotate through a gear set or a belt pulley set.

Above-mentioned second slide rail 12 is located on frame 4, and this second slide rail 12 has two sets ofly and vertically erects respectively on the stand of frame 4 left and right sides, and first slide rail 11 is located on frame 4 and extends along left and right direction level, and the both ends of first slide rail 11 can be located on two sets of second slide rails 12 with reciprocating respectively. The third driving member 5 is configured to drive the first slide rail 11 to move up and down along the second slide rail 12, the third driving member 5 includes a third motor 51 disposed on the top of the rack 4, a lead screw 52 connected to an output end of the third motor 51 in a transmission manner and extending vertically, and a nut 53 sleeved on the lead screw 52 and in threaded connection with the lead screw 52, and the nut 53 is connected to the first slide rail 11. In this embodiment, two sets of the screw rods 52 and the nuts 53 thereof are provided and respectively disposed at two ends of the first slide rail 11, the third motor 51 is a double-shaft motor located at the center of the cross beam at the top of the frame 4, two output shafts of the double-shaft motor are respectively horizontally disposed along the left and right direction, the two screw rods 52 are respectively in transmission connection with the two output shafts of the double-shaft motor through transmission members, and the transmission members can be transmission gears or the like, so as to convert the rotation power of the two output shafts of the double-shaft motor into rotation power for rotating the two screw rods 52.

The two groups of flanging components 3 are respectively movably arranged on the first slide rail 11 and are positioned above the turntable 2. The second driving member is arranged on the first slide rail 11 and acts on the flanging assembly 3 to drive the flanging assembly 3 to horizontally move along the first slide rail 11. The second driving member is a hydraulic cylinder or a pneumatic cylinder or an electric cylinder.

Each set of flanging component 3 comprises a flanging wheel 31 which can move up and down and is used for corresponding to the top end of the spiral plate 110 of the core body 100 and flanging the top end of the spiral plate 110 downwards, and a first driving piece 32 of which the output end is connected with the flanging wheel 31 to drive the flanging wheel 31 to move up and down. Specifically, the first driving member 32 is a vertically disposed hydraulic cylinder or a pneumatic cylinder or an electric cylinder. The flanging wheel 31 is provided with a horizontally extending central axis 310, the flanging wheel 31 is vertically arranged and can rotate by taking the central axis 310 as a center, the flanging wheel 31 is provided with a first circular end surface 311 and a second circular end surface 312 which are opposite to each other in the axial direction, the diameter of the second circular end surface 312 is larger than that of the first circular end surface 311, the centers of the first circular end surface 311 and the second circular end surface 312 are arranged corresponding to the central axis 310 of the flanging wheel 31, the edges of the first circular end surface 311 and the second circular end surface 312 are connected through a peripheral wall 313, the cross section of the peripheral wall 313 is partially in an inwards concave arc shape, and the peripheral wall 313 is arranged corresponding to the top end of the spiral plate 110, so that the top end of the spiral plate 110 is flanged under the action of downward extrusion of the peripheral wall 313. And the thickness of the turn-up pulley 31 in the axial direction of the periphery of the turn-up pulley in the present embodiment matches the distance between the spiral plates 110 of the adjacent layers. And the burring wheel 31 is a universal wheel.

When the flanging works, the core body 100 of the spiral plate heat exchanger is vertically placed on the supporting surface 20 of the rotary table 2, and the core body 100 is clamped from the periphery by the limiting block 21, so that the central shaft of the core body 100 corresponds to the center of the rotary table 2, and the core body 100 is prevented from displacing during flanging. After the core 100 is placed, the third driving member 5 is started, so that the flanging component 3 moves downwards to the upper side of the core 100, the arc-shaped peripheral wall 313 of the flanging wheel 31 in the flanging component 3 is pressed downwards at the upper end of one layer of the spiral plate 110, then the rotating disc 2 is driven to rotate, flanging on the multilayer spiral plate 110 can be realized, flanging is performed on the multilayer spiral plate 110 from inside to outside or from outside to inside along with the multilayer spiral plate 110, and the second driving member drives the flanging component 3 to move horizontally. The first drive member 32 of the turn-up assembly 3 regulates the downward pressing force of the turn-up wheel 31, and thus controls the degree of turn-up.

And in this application through the carousel 2 design on base 1 and the base 1 along fore-and-aft direction horizontal migration together for when needs loading and unloading core 100, remove base 1, make base 1 be close to treat turn-ups core 100, and keep away from above-mentioned frame 4, and then be convenient for hoist and mount of core 100.

Claims

1. A turn-up apparatus for a spiral plate heat exchanger core, comprising:

a base (1);

it is characterized by also comprising:

the rotary table (2) is horizontally arranged on the base (1) in a rotatable mode, and the top surface of the rotary table (2) is a supporting surface (20) for vertically placing and constraining the core body (100) of the spiral plate heat exchanger;

the flanging assembly (3) is arranged above the rotating disc (2) in a horizontally moving mode, the flanging assembly (3) comprises a flanging wheel (31) which can move up and down and is used for corresponding to the top end of a spiral plate (110) of the core body (100) and flanging the top end of the spiral plate (110) downwards, and a first driving piece (32) of which the output end is connected with the flanging wheel (31) so as to drive the flanging wheel (31) to move up and down, wherein the first driving piece (32) is a hydraulic cylinder or a pneumatic cylinder or an electric cylinder or a motor;

and the second driving piece acts on the flanging assembly (3) to drive the flanging assembly (3) to move horizontally.

2. The turn-up apparatus of claim 1, characterized in that: still including frame (4), restraint on frame (4) and be located base (1) top and the first slide rail (11) of horizontal straight line extension, turn-ups subassembly (3) can locate on first slide rail (11) with horizontal migration.

3. The turn-up apparatus of claim 1, characterized in that: the second driving piece is a hydraulic cylinder or a pneumatic cylinder or an electric cylinder.

4. The turn-up apparatus of claim 2, characterized in that: the first sliding rail (11) can be arranged on the rack (4) in a vertically moving mode, and the second driving piece is arranged on the first sliding rail (11).

5. The turn-up apparatus of claim 4, characterized in that: the automatic sliding rail device is characterized by further comprising a third driving piece (5) used for driving the first sliding rail (11) to move up and down, the third driving piece (5) comprises a third motor (51) arranged on the rack (4), a screw rod (52) which is in transmission connection with the output end of the third motor (51) and extends vertically, and a nut (53) in threaded connection with the screw rod (52), and the nut (53) is connected with the first sliding rail (11).

6. The turn-up apparatus of claim 5, characterized in that: two groups of screw rods (52) and nuts (53) thereof are arranged corresponding to two ends of the first slide rail (11) respectively.

7. The turn-up apparatus of claim 4, characterized in that: the device is characterized by further comprising second sliding rails (12) which are arranged on the rack (4) and located on two sides of the base (1) and vertically extend, wherein the second sliding rails (12) are two and respectively correspond to two ends of the first sliding rails (11), and two ends of the first sliding rails (11) can be arranged on the second sliding rails (12) in a vertically moving mode.

8. The flanging equipment of any one of claims 1-7, characterized in that: the flanging wheel (31) is provided with a horizontally extending central axis (310), the flanging wheel (31) is vertically arranged and can rotate by taking the central axis (310) as a center, the flanging wheel (31) is provided with a first circular end face (311) and a second circular end face (312) which are opposite to each other in the axial direction, the diameter of the second circular end face is larger than that of the first circular end face (311), the centers of the first circular end face (311) and the second circular end face (312) are arranged corresponding to the central axis (310) of the flanging wheel (31), the edges of the first circular end face (311) and the second circular end face (312) are connected through a peripheral wall (313), the cross section of the peripheral wall (313) is locally concave arc-shaped, the peripheral wall (313) is arranged corresponding to the top end of the spiral plate (110), and therefore the top end of the spiral plate (110) is flanged under the action force of downward extrusion of the peripheral wall (313).

9. The turn-up apparatus of claim 8, wherein: the thickness of the flanging wheel (31) in the axial direction is matched with the distance between the spiral plates (110) of the adjacent layers.

10. The turn-up apparatus of claim 8, wherein: the flanging wheels (31) are universal wheels.

11. The flanging equipment of any one of claims 1-7, characterized in that: the two flanging assemblies (3) are arranged along the horizontal direction.

12. The flanging equipment of any one of claims 1-7, characterized in that: the base (1) is arranged to be horizontally movable under an external force, and further comprises a fourth driving member (6) for providing the external force to drive the base to move.

13. The flanging equipment of any one of claims 1-7, characterized in that: be equipped with stopper (21) that a plurality of circumference intervals were arranged on holding surface (20) of carousel (2), enclose between each stopper (21) and place the space wherein for core (100) of spiral plate heat exchanger, and each stopper (21) have be used for with spacing face (211) that the periphery wall of core (100) contacted.