Three-dimensional model construction device for plate heat exchanger plate

Abstract

The utility model discloses a three-dimensional model construction device for a plate heat exchanger plate, which comprises a frame body and a plurality of groups of tensioning components symmetrically connected to the frame body respectively, each tensioning assembly comprises at least one tensioning piece, at least one connecting piece and a tensioning adjusting mechanism, the tensioning adjusting mechanisms are fixedly or detachably connected to the frame body, the tensioning pieces are arranged in the tensioning adjusting mechanisms, and the free ends of the tensioning pieces are connected with plate sheets of the plate heat exchanger through the connecting pieces; the scanning equipment comprises a moving trolley, a mechanical arm and a structured light three-dimensional measuring probe, the structured light three-dimensional measuring probe is arranged on the mechanical arm, and the mechanical arm is arranged on the moving trolley. The tensioning assembly of the three-dimensional model construction device of the plate heat exchanger plate can fix the plate in a self-adaptive mode, the plate is prevented from being deformed, the tensioning assembly is matched with the scanning device to automatically conduct comprehensive structured light scanning on the plate, and finally a three-dimensional model of the plate is constructed so as to obtain surface abrasion and size information of the plate. The method is used for evaluating the running state of the plate subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional scanning devices, in particular to a three-dimensional model building device for a plate heat exchanger plate. Background Art

[0002] In order to solve the problem of plate wear and defect detection of plate heat exchanger, it is necessary to reconstruct the three-dimensional model of the plate heat exchanger plate to obtain the surface wear and size information of the plate heat exchanger plate, which is used to evaluate the operating status of the plate heat exchanger plate.

[0003] Since the plates of plate heat exchangers are soft and easy to deform, there is currently no support structure or suitable scanning device available for scanning the plates of plate heat exchangers, and it is impossible to accurately obtain its three-dimensional model and thickness information. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a three-dimensional model building device for plates of a plate heat exchanger.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a three-dimensional model building device for a plate heat exchanger plate, comprising:

[0006] Frame,

[0007] A plurality of tensioning components are symmetrically connected to the frame respectively; each group of the tensioning components comprises at least one tensioning member, at least one connecting member and a tensioning adjustment mechanism, the tensioning adjustment mechanism is fixedly or detachably connected to the frame, the tensioning member is arranged in the tensioning adjustment mechanism and its free end is connected to the plate of the plate heat exchanger through the connecting member;

[0008] The scanning device comprises a mobile trolley, a mechanical arm and a structured light three-dimensional measurement probe, wherein the structured light three-dimensional measurement probe is arranged on the mechanical arm, and the mechanical arm is arranged on the mobile trolley.

[0009] Preferably, in the three-dimensional model construction device of the plate heat exchanger plate described in the utility model, the connecting member includes a connecting portion connected to the tensioning member and a clamping portion matching the shape of the edge hole of the plate heat exchanger plate, and the diameter of the clamping portion is smaller than the diameter of the connecting portion.

[0010] Preferably, in the three-dimensional model building device for a plate heat exchanger plate described in the utility model, the cross-section of the clamping portion is circular, sector-shaped or annular.

[0011] Preferably, in the three-dimensional model building device for a plate heat exchanger plate of the utility model, the tensioning adjustment mechanism is a winch, and the tensioning member is arranged in the winch; or

[0012] The tensioning and adjusting mechanism comprises a reel and a motor, the rotating shaft of the motor is connected to the reel, and the tensioning member is arranged in the reel.

[0013] Preferably, in the three-dimensional model building device for a plate heat exchanger plate described in the utility model, the tensioning assembly further comprises a tension display, and the tension display is connected to the tensioning member and displays the real-time tension of the tensioning member.

[0014] Preferably, in the three-dimensional model construction device of the plate heat exchanger plate described in the utility model, the mechanical arm includes a base, a driving device, a first arm, a second arm, a third arm and a fourth arm; the base is fixedly connected to the mobile trolley, the first arm is fixedly connected to the base, the driving device is arranged in the base and is respectively connected to the first arm, the second arm, the third arm and the fourth arm; the second arm is rotatably connected to the first arm and the third arm through a rotating shaft, the fourth arm is rotatably connected to the third arm through a rotating shaft, and the end of the fourth arm away from the third arm is fixedly connected to the structured light three-dimensional measurement probe.

[0015] Preferably, in the three-dimensional model building device for a plate heat exchanger plate described in the utility model, the mobile trolley comprises a trolley body and at least four Mecanum wheels, and at least four of the Mecanum wheels are arranged at the bottom of the trolley body.

[0016] Preferably, in the three-dimensional model building device for a plate heat exchanger plate of the utility model, the number of the tensioning members is four;

[0017] The frame includes at least two columns and a support assembly, the support assembly is respectively connected to the two columns to support the columns, and more than four tensioning members are respectively symmetrically connected to the columns;

[0018] Or the frame includes at least four columns, at least four beams and a support assembly, the four columns are parallel to each other, the support assemblies are respectively connected to the four columns to support the columns, and the four beams are respectively connected to the columns; the four tension members are respectively and symmetrically connected to the beams.

[0019] Preferably, in the three-dimensional model building device for plate heat exchanger plates described in the utility model, the frame further includes a fixing member and a foot leveling member, and the foot leveling member is fixedly connected to the fixing member and connected to the column.

[0020] Preferably, in the three-dimensional model building device for a plate heat exchanger plate described in the utility model, the tensioning member is a steel wire rope.

[0021] By implementing the utility model, the following beneficial effects are achieved:

[0022] The tensioning component of the three-dimensional model construction device of the plate heat exchanger plate of the utility model can fix the plate heat exchanger plate to prevent the plate heat exchanger plate from deformation, and can automatically perform a comprehensive structured light scan on the plate heat exchanger plate in combination with the scanning device, and finally construct a three-dimensional model of the plate heat exchanger plate to obtain the surface wear and size information of the plate heat exchanger plate, which is used for the subsequent evaluation of the operating status of the plate heat exchanger plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 It is a schematic diagram of the overall structure of a three-dimensional model building device for a plate heat exchanger plate according to an embodiment of the utility model;

[0025] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure in Figure 1. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a chemical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] See also Figure 1 to Figure 2 An embodiment of the utility model discloses a three-dimensional model building device for a plate heat exchanger plate, which can build a three-dimensional model of the plate heat exchanger plate 5 to obtain surface wear and size information of the plate heat exchanger plate 5 for subsequent evaluation of the operating status of the plate heat exchanger plate 5.

[0031] like Figure 1 As shown, the three-dimensional model building device includes a frame 1, multiple sets of tensioning components 2 and a scanning device 3. The multiple sets of tensioning components 2 are symmetrically connected to the frame 1, and each set of tensioning components 2 includes at least one tensioning member 21, at least one connecting member 22 and a tensioning adjustment mechanism. The tensioning adjustment mechanism is fixedly or detachably connected to the frame 1. The tensioning member 21 is arranged in the tensioning adjustment mechanism and its free end is connected to the plate heat exchanger plate 5 through the connecting member 22. Preferably, in this embodiment, the tensioning member 21 is a pull rope, such as a steel wire rope, a hemp rope, etc.

[0032] The scanning device 3 includes a mobile carriage 31 , a mechanical arm 32 and a structured light three-dimensional measurement probe 4 . The structured light three-dimensional measurement probe 4 is disposed on the mechanical arm 32 , and the mechanical arm 32 is disposed on the mobile carriage 31 .

[0033] Generally, the plate heat exchanger plate 5 is soft and easy to deform. It is a square structure with four guide holes or dovetail grooves. In order to fully unfold and support the plate heat exchanger plate 5 for easy scanning, the number of tensioning components 2 is the same as the number of guide holes or dovetail grooves, which is four. Preferably, when the connecting member 22 is connected to the guide hole or dovetail groove, the number of tensioning members 21 and the number of connecting members 22 are four respectively. It can be understood that in some other embodiments, the connecting member 22 can be connected to other positions other than the guide hole or dovetail groove of the plate heat exchanger plate 5, and the number of connecting members 22 is not limited to four. For example, the connecting member 22 is clamped on the plate heat exchanger plate 5, and the connecting member 22 can be four, six, eight, etc.

[0034] Accordingly, in some embodiments, the frame 1 includes at least two columns 11 and a support assembly 13, the support assembly 13 is respectively connected to the two columns 11 to support the columns 11, four or more tension members 21 are respectively symmetrically connected to the columns 11, and four connecting members 22 are clamped with the plate heat exchanger plates 5 to support the plate heat exchanger plates 5. It can be understood that the support assembly 13 may include multiple support rods connected around the columns 11, for example, forming a mechanical triangle structure to provide more stable support.

[0035] In some other embodiments, the frame 1 may also include at least four columns 11, at least four beams 12 and a support assembly 13, the four columns 11 are parallel to each other, the support assembly 13 is respectively connected to the four columns 11 to support the columns 11, the four beams 12 are respectively connected to the columns 11, the four tension members 21 are respectively symmetrically connected to the beams 12, and the four connecting members 22 are clamped with the plate heat exchanger plates 5 to support the plate heat exchanger plates 5. It can be understood that the frame 1 avoids the plate heat exchanger plates 5 as much as possible to prevent the plate heat exchanger plates 5 from being blocked and the scanning device from being blocked.

[0036] Furthermore, in order to facilitate the placement of the frame 1, the frame 1 may further include a fixing member 14 and a foot leveling member 15 in some embodiments. The foot leveling member 15 is fixedly connected to the fixing member 14 and connected to the column 11. The fixing member 14 may be fixed to the external structure to fix the position of the entire frame 1. Preferably, the foot leveling member 15 may be a leveling bolt, a multi-point leveling structure, or the like.

[0037] like Figure 2 As shown, in some embodiments, the connector 22 may include a connector 221 connected to the tension member 21 and a clamping portion 222 matching the shape of the edge hole of the plate 5 of the plate heat exchanger, and the diameter of the clamping portion 222 is smaller than the diameter of the connector 221. The clamping portion 222 is clamped on the guide hole or dovetail groove of the plate heat exchanger plate 5. Preferably, the shape of the clamping portion 222 matches the guide hole or dovetail groove, for example, the cross section of the clamping portion 222 is circular, fan-shaped or annular.

[0038] Furthermore, in order to adapt to the plate heat exchanger plates 5 of different sizes, the tensioning adjustment mechanism may be a winch in some embodiments, and the tensioning member 21 is arranged in the winch. The handle of the winch can be manually turned to adjust the length of the free end of the tensioning member 21 to adapt to the size of the plate heat exchanger plate 5. It can be understood that in some other embodiments, the tensioning adjustment mechanism may include a reel and a motor, the rotating shaft of the motor is connected to the reel, the tensioning member 21 is arranged in the reel, and the motor is started to drive the reel to rotate to adjust the length of the free end of the tensioning member 21 to adapt to the size of the plate heat exchanger plate 5. In addition to the above two structures, the tensioning adjustment mechanism can also be a foldable structure, a freely shrinkable stretching structure or a porous snap-on assembly, or an elastic member. The tensioning adjustment mechanism can also be an integrated structure with the tensioning member 21, and the tensioning member 21 is an elastic member.

[0039] In some embodiments, the tensioning assembly 2 may also include a tension display (not shown in the figure), which is connected to the tensioning member 21 and displays the real-time tension of the tensioning member 21. The tension display may be a tension sensor, with the sensor head connected to the tensioning member 21, and the data uploaded to the tension sensor display through wiring. The tension display may also be a tension meter integrally mounted on the tensioning member 21. The specific structure of the tension display is prior art and will not be described in detail here.

[0040] Furthermore, in order to automatically adjust the tightness of the tensioning member 21, the tensioning assembly 2 may further include a motor in some embodiments, and the rotating shaft of the motor is connected to the adjusting member. For example, the rotating shaft of the motor is connected to the drum, driving the drum to rotate, thereby releasing more wire ropes or retracting more wire ropes, changing the length of the wire ropes to adapt to plate heat exchanger plates 5 of different sizes.

[0041] Furthermore, in order to facilitate the movement of the robot arm 32 and the structured light three-dimensional measurement probe 4, the mobile vehicle 31 includes a vehicle body 311 and at least four Mecanum wheels 312. The at least four Mecanum wheels 312 are arranged at the bottom of the vehicle body 311, and can achieve instantaneous movement in any direction, including forward, backward, left and right translation, and diagonal movement, without the need for steering. This setting can increase the maneuverability and flexibility of the autonomous platform, especially in a space-constrained environment, and steering can be achieved without a special steering mechanism.

[0042] like Figure 1As shown, in order to realize the comprehensive scanning of the plate heat exchanger plate 5 by the structured light three-dimensional measurement probe 4, the mechanical arm 32 may include a base 321, a driving device, a first section arm 322, a second section arm 323, a third section arm 324 and a fourth section arm 325 in some embodiments, wherein the driving device is not shown in the figure. The base 321 is fixedly connected to the mobile vehicle 31, the first section arm 322 is fixedly connected to the base 321, the driving device is arranged in the base 321 and is respectively connected to the first section arm 322, the second section arm 323, the third section arm 324 and the fourth section arm 325, the second section arm 323 is respectively rotatably connected to the first section arm 322 and the third section arm 324 through a rotating shaft, the fourth section arm 325 is rotatably connected to the third section arm 324 through a rotating shaft, and the end of the fourth section arm 325 away from the third section arm 324 is fixedly connected to the structured light three-dimensional measurement probe 4. The robot arm 32 has four degrees of freedom and can move the structured light three-dimensional measurement probe 4 while scanning the plate 5 of the plate heat exchanger to scan different positions.

[0043] The method of using the three-dimensional model building device of the plate heat exchanger plate of the utility model is: when measuring, use the tensioning device to fully unfold the plate heat exchanger plate 5 and keep it fixed, move the mobile car 31 to a certain position, use the structured light three-dimensional measurement probe 4 to scan the plate heat exchanger plate 5, and while scanning, the mechanical arm 32 can adjust the scanning position of the structured light three-dimensional measurement probe 4, and the mobile car 31 can also move and adjust the position of the mechanical arm 32 and the structured light three-dimensional measurement probe 4 at the same time, and finally complete the comprehensive scanning of the plate heat exchanger plate 5. It can be understood that when measuring, the mobile car 31 can walk along a specific route, and the mechanical arm 32 can also rotate along a specific route. The specific route planning is not the focus of the utility model and will not be elaborated here.

[0044] By implementing the utility model, the following beneficial effects are achieved:

[0045] The tensioning component 2 of the three-dimensional model construction device of the plate heat exchanger plate of the utility model can fix the plate heat exchanger plate 5 to prevent the plate heat exchanger plate 5 from deformation, and can automatically perform a comprehensive structured light scan on the plate heat exchanger plate 5 in combination with the scanning device, and finally construct a three-dimensional model of the plate heat exchanger plate 5 to obtain the surface wear and size information of the plate heat exchanger plate 5, which is used for the subsequent evaluation of the operating status of the plate heat exchanger plate 5.

[0046] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A three-dimensional model building device for a plate heat exchanger plate, characterized in that: include: Frame (1), A plurality of tensioning components (2) are symmetrically connected to the frame (1); each group of the tensioning components (2) comprises at least one tensioning member (21), at least one connecting member (22) and a tensioning adjustment mechanism, the tensioning adjustment mechanism is fixedly or detachably connected to the frame (1), the tensioning member (21) is arranged in the tensioning adjustment mechanism and its free end is connected to the plate (5) of the plate heat exchanger via the connecting member (22); The scanning device (3) comprises a mobile trolley (31), a mechanical arm (32) and a structured light three-dimensional measurement probe (4), wherein the structured light three-dimensional measurement probe (4) is arranged on the mechanical arm (32), and the mechanical arm (32) is arranged on the mobile trolley (31).

2. The three-dimensional model building device of a plate heat exchanger plate according to claim 1, characterized in that: The connecting member (22) comprises a connecting portion (221) connected to the tensioning member (21) and a clamping portion (222) matching the shape of the edge hole of the plate (5) of the plate heat exchanger, and the diameter of the clamping portion (222) is smaller than the diameter of the connecting portion (221).

3. The three-dimensional model building device of the plate heat exchanger plate according to claim 2, characterized in that: The cross section of the clamping portion (222) is circular, sector-shaped or ring-shaped.

4. The three-dimensional model building device of a plate heat exchanger plate according to claim 1, characterized in that: The tensioning adjustment mechanism is a winch, and the tensioning member (21) is arranged in the winch; or The tensioning and adjusting mechanism comprises a reel and a motor, the rotating shaft of the motor is connected to the reel, and the tensioning member (21) is arranged in the reel.

5. The three-dimensional model building device of a plate heat exchanger plate according to claim 1, characterized in that: The tensioning assembly (2) further comprises a tension display, which is connected to the tensioning member (21) and displays the real-time tension of the tensioning member (21).

6. The three-dimensional model building device of a plate heat exchanger plate according to any one of claims 1 to 5, characterized in that: The mechanical arm (32) comprises a base (321), a driving device, a first arm (322), a second arm (323), a third arm (324) and a fourth arm (325); the base (321) is fixedly connected to the moving vehicle (31); the first arm (322) is fixedly connected to the base (321); the driving device is arranged in the base (321) and is respectively connected to the first arm (322), the second arm (323), the third arm (324) and the fourth arm (325); the second arm (323) is rotatably connected to the first arm (322) and the third arm (324) via a rotating shaft; the fourth arm (325) is rotatably connected to the third arm (324) via a rotating shaft; and an end of the fourth arm (325) away from the third arm (324) is fixedly connected to the structured light three-dimensional measurement probe (4).

7. The three-dimensional model building device of a plate heat exchanger plate according to any one of claims 1 to 5, characterized in that: The mobile trolley (31) comprises a trolley body (311) and at least four Mecanum wheels (312), wherein the at least four Mecanum wheels (312) are arranged at the bottom of the trolley body (311).

8. The three-dimensional model building device of a plate heat exchanger plate according to any one of claims 1 to 5, characterized in that: The number of the tensioning members (21) is four; The frame (1) comprises at least two columns (11) and a support assembly (13), wherein the support assembly (13) is respectively connected to the two columns (11) to support the columns (11), and more than four tensioning members (21) are respectively symmetrically connected to the columns (11); Or the frame (1) comprises at least four columns (11), at least four beams (12) and a support assembly (13); the four columns (11) are parallel to each other; the support assembly (13) is respectively connected to the four columns (11) to support the columns (11); the four beams (12) are respectively connected to the columns (11); and the four tension members (21) are respectively and symmetrically connected to the beams (12).

9. The three-dimensional model building device of a plate heat exchanger plate according to claim 8, characterized in that: The frame (1) further comprises a fixing member (14) and a foot leveling member (15); the foot leveling member (15) is fixedly connected to the fixing member (14) and is connected to the column (11).

10. The three-dimensional model building device of a plate heat exchanger plate according to any one of claims 1 to 5, characterized in that: The tensioning member (21) is a steel wire rope.

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