A special pipe winding device for large-tonnage spiral wound pipe heat exchanger

Abstract

A kind of special pipe winding device of large-tonnage wound tube heat exchanger, including pipe winding trolley assembly, multiple coils of pipe are distributed on pipe winding trolley assembly, pipe winding trolley assembly exports after straightening, corresponding position of the output end of pipe winding trolley assembly is arranged with the wound tube heat exchanger to be wound, wound tube heat exchanger is supported and installed by supporting rotation subassembly, wound tube heat exchanger can rotate, pipe winding trolley assembly exports straightened pipe, pipe is wound to the outer surface of wound tube heat exchanger;The structure of supporting rotation subassembly is as follows: including interval arrangement driven base and driving base, driven base is installed with driven pair of rollers support, driving base is installed with driving pair of rollers support, driving pair of rollers support and driven pair of rollers support are cooperatively installed wound tube heat exchanger between;Drive rotating motor and speed reducer are also provided at driving pair of rollers support side, the output end of speed reducer is connected with driving pair of rollers support, and work is reliable.

Description

Technical Field

[0001] This utility model relates to the field of tube winding device technology, and in particular to a special tube winding device for a large-tonnage wound tube heat exchanger. Background Technology

[0002] Spiral tube heat exchangers have unparalleled advantages over ordinary shell and tube heat exchangers. They are applicable to a wide temperature range, adaptable to thermal shock, self-relief of thermal stress, and have high compactness. Due to their special structure, the flow field is fully developed and there are no dead zones. In particular, by setting up multiple tubes (single shell), multiple fluids can be exchanged simultaneously in one device.

[0003] Spiral coil heat exchangers are highly efficient and compact heat exchangers that not only utilize waste heat but also play a vital role in energy conservation and environmental protection. However, their complex structure, high cost, and location within a critical part of the equipment make them problematic.

[0004] A spiral heat exchanger is made by alternately winding heat transfer tubes in a spiral shape in the space between the core and the outer cylinder. The spiral directions of adjacent spiral heat transfer tubes are opposite, and a spacer of a certain shape is used to maintain a certain distance between them.

[0005] Spiral coiled tubes can be wound as a single strand or as two or more strands welded together and then wound together. A medium can pass through the tube, which is called a single-channel spiral coiled tube heat exchanger.

[0006] One of the most important processes in the manufacturing of wound tube heat exchangers is the tube winding process. Currently, the existing technology uses manual winding, which has low work efficiency and high labor intensity for workers. In addition, manual winding alone is not enough to complete the tube winding work of large-tonnage wound tube heat exchangers, and cannot meet the usage requirements. Utility Model Content

[0007] In response to the shortcomings of the existing production technology, the applicant provides a special winding device for large-tonnage wound tube heat exchangers, which greatly improves the processing efficiency of large-tonnage wound tube heat exchangers, with superior winding quality and high winding efficiency, and avoids the high-intensity work of manual winding.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A special tube winding device for a large-tonnage wound tube heat exchanger includes a tube winding trolley assembly with multiple coils of round tubes distributed on it. The tube winding trolley assembly straightens the round tubes and outputs them. A wound tube heat exchanger to be wound is arranged at the corresponding position of the output end of the tube winding trolley assembly. The wound tube heat exchanger is supported and installed by a support rotation assembly and can rotate. The tube winding trolley assembly outputs the straightened round tubes, which are wound to the outer surface of the wound tube heat exchanger.

[0010] The structure of the rotating support assembly is as follows: it includes a driven base and a driving base arranged at intervals. A driven roller support is installed on the driven base, and a driving roller support is installed on the driving base. A wound tube heat exchanger is installed between the driving roller support and the driven roller support. A drive rotation motor and a reducer are also provided next to the driving roller support. The output end of the reducer is connected to the driving roller support.

[0011] As a further improvement to the above technical solution:

[0012] A door frame is installed outside the active base via the base. Symmetrical inner rails are arranged on the inner side of the door frame. A floating block is installed between the two inner rails. A universal coupling is fixedly installed on the end face of the floating block facing the direction of the active roller support. The universal coupling is connected to the central shaft of the wound tube heat exchanger.

[0013] The universal coupling is a non-scaling universal coupling.

[0014] The structure of the tube winding trolley assembly is as follows: it includes spaced guide rails, a trolley base that slides along the guide rails is installed on both guide rails, a support column is fixed at the center of the upper surface of the trolley base, a set of tube winding discs are arranged on each side of the support column, a lifting cantilever is vertically installed above the support column, and a straightening component is installed on the lifting cantilever.

[0015] The height of the support column is higher than the installation height of the wound tube heat exchanger.

[0016] A lifting motor is installed on the top surface of the support column to control the up and down movement of a single set of winding discs.

[0017] The installation structure of the straightening component is as follows: it includes a column fixed on the lifting arm, a set of vertically spaced and parallel connecting frames installed on the outside of the column, a horizontal frame fixed at the head of each connecting frame, and conveying clamping components installed at both ends of the horizontal frame, that is, there are four conveying clamping components in total, which correspond to four winding discs respectively; a connecting rod is fixed on the outer end face of the lifting arm, and a straightening component and a slender side arm are fixed at the head of the connecting rod. A pressure wheel is installed at the head of the side arm through a mounting seat, and the pressure wheel presses down on the round tube.

[0018] The structure of the overall straightening assembly is as follows: it includes a lower wheel seat fixed to the outer end face of the connecting rod, an upper wheel seat is installed on the outer side above the lower wheel seat via a hinge, and multiple straightening rubber wheels are arranged parallel and spaced apart inside both the upper wheel seat and the lower wheel seat.

[0019] The straightening rubber wheel is provided with multiple grooves, which match the round tube.

[0020] The clamping wheel is made of rubber, and multiple recesses matching the round tube are arranged on the clamping wheel from one end to the other.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model has a compact and reasonable structure and is easy to operate. Through the cooperation between the tube winding trolley assembly, the support device, and other key components, it can easily complete the tube winding work of large-tonnage spiral tube heat exchangers. It has a high degree of automation, high working efficiency, good working reliability, and meets the usage requirements.

[0023] The tube winding machine designed in this utility model greatly improves the tube winding efficiency of heat exchangers. It is difficult to manually wind tubes for large-tonnage heat exchangers. By using a tube winding machine to drive the heat exchanger to rotate, and cooperating with the tube winding trolley assembly to transport the round tube, and with manual assistance, the tube winding can be completed more easily.

[0024] The support and rotation assembly designed in this utility model can easily support and rotate the wound tube heat exchanger. It is equipped with a universal coupling to allow the wound tube heat exchanger to float up and down during the rotation of the wound tube, ensuring that the wound tube heat exchanger will not move axially and guaranteeing the processing quality.

[0025] The design of this utility model of a tube winding trolley assembly allows for the convenient placement of 1-4 tube winding discs, which can be adjusted according to the actual needs of the processed products. The trolley also has lifting and rotating functions.

[0026] This utility model is designed with a straightening component, which can conveniently and quickly straighten the wound round tube and ensure the reliability of the winding.

[0027] This invention is applicable to the automatic winding of 5-600 ton (especially 200 ton and above) spiral wound tube heat exchangers. During the entire winding process, the operator only needs to participate in auxiliary work such as bending and inserting the tube at the beginning and end, which greatly reduces the labor intensity of workers, improves the efficiency of winding, meets the needs of use, has good reliability, and produces high-quality products. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0030] Figure 3 This is a schematic diagram of the structure of the support rotation assembly of this utility model.

[0031] Figure 4 This is a partial structural schematic diagram of the support rotation assembly of this utility model.

[0032] Figure 5 This is a schematic diagram of the structure of the tube winding trolley assembly of this utility model.

[0033] Figure 6 This is a partial structural schematic diagram of the tube winding trolley assembly of this utility model.

[0034] Figure 7 This is a schematic diagram (closed state) of the installation of the straightening component in the tube winding trolley assembly of this utility model.

[0035] Figure 8 This is an installation diagram (open state) of the straightening component in the tube winding trolley assembly of this utility model.

[0036] Among them: 100, coiled tube trolley assembly; 200, coiled tube heat exchanger; 300, support rotation assembly;

[0037] 101. Winding disc; 102. Lifting motor; 103. Support column; 104. Lifting cantilever; 105. Column; 106. Connecting frame; 107. Horizontal frame; 108. Conveying clamping assembly; 109. Connecting rod; 110. Consolidation and straightening assembly; 111. Pressure roller; 112. Mounting base; 113. Side arm; 114. Guide rail; 115. Trolley base; 116. Rotary motor;

[0038] 11001, Upper wheel seat; 11002, Straightening rubber wheel; 11003, Lower wheel seat;

[0039] 301. Driven base; 302. Driven roller support; 303. Driven base; 304. Driven roller support; 305. Drive motor; 306. Reducer; 307. Door frame; 308. Floating block; 309. Universal coupling; 310. Inner rail. Detailed Implementation

[0040] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0041] like Figures 1-8 As shown, the special tube winding device for the large-tonnage wound tube heat exchanger in this embodiment includes a tube winding trolley assembly 100. Multiple rolls of round tubes (four rolls in this embodiment) are distributed on the tube winding trolley assembly 100. The tube winding trolley assembly 100 straightens the round tubes and outputs them. The wound tube heat exchanger 200 to be wound is arranged at the corresponding position of the output end of the tube winding trolley assembly 100. The wound tube heat exchanger 200 is supported and installed by a support rotation assembly 300. The wound tube heat exchanger 200 can rotate. The tube winding trolley assembly 100 outputs the straightened round tubes, which are wound to the outer surface of the wound tube heat exchanger 200.

[0042] The structure of the rotating support assembly 300 includes a driven base 301 and a driven base 303 arranged at intervals. A driven roller support 302 is installed on the driven base 301, and a driven roller support 304 is installed on the driven base 303. A wound tube heat exchanger 200 is installed between the driven roller support 304 and the driven roller support 302. A drive rotation motor 305 and a reducer 306 are also provided next to the driven roller support 304. The output end of the reducer 306 is connected to the driven roller support 304.

[0043] The distance between the driven base 301 and the active base 303 is greater than the length of the wound tube heat exchanger 200, which ensures the reliable installation of the wound tube heat exchanger 200.

[0044] A door frame 307 is also installed on the outside of the active base 303 via the base. Symmetrical inner rails 310 are arranged on the inner side of the door frame 307. A floating block 308 is installed between the two inner rails 310. A universal coupling 309 is fixedly installed on the end face of the floating block 308 facing the active roller support 304. The universal coupling 309 is connected to the central rotating shaft of the wound tube heat exchanger 200.

[0045] Universal coupling 309 adopts a non-telescopic universal coupling.

[0046] Universal coupling 309 is connected to the spindle of wound tube heat exchanger 200. In actual use, the center height of universal coupling 309 can be adjusted vertically according to the diameter of wound tube heat exchanger 200, and effectively prevents axial movement of wound tube heat exchanger 200 during use.

[0047] The structure of the tube winding trolley assembly 100 is as follows: it includes spaced guide rails 114, and trolley bases 115 that slide along the guide rails 114 are installed on both guide rails 114. A support column 103 is fixed at the center of the upper surface of the trolley base 115. A set of tube winding discs 101 are arranged on each side of the support column 103. A lifting arm 104 is vertically installed above the support column 103. A straightening component is installed on the lifting arm 104.

[0048] The height of the support column 103 is higher than the installation height of the wound tube heat exchanger 200.

[0049] A lifting motor 102 is installed on the top surface of the support column 103 to control the up and down movement of a single winding disc 101.

[0050] The installation structure of the straightening assembly is as follows: it includes a column 105 fixed on the lifting arm 104, a set of vertically spaced and parallel connecting frames 106 installed on the outside of the column 105, a horizontal frame 107 fixed to the head of each connecting frame 106, and conveying clamping assemblies 108 installed at both ends of the horizontal frame 107, that is, there are four conveying clamping assemblies 108, which correspond to four winding discs 101 respectively. The conveying clamping assembly 108 is provided with guide wheels inside, and the round tube is output through the guide wheels; a connecting rod 109 is fixed to the outer end face of the lifting arm 104, and a straightening assembly 110 and a slender side arm 113 are fixed to the head of the connecting rod 109. A pressure wheel 111 is installed on the head of the side arm 113 through the mounting base 112, and the pressure wheel 111 presses the round tube.

[0051] A rotary motor 116 is also installed on the upper surface of the trolley base 115. The rotary motor 116 can control the entire support column 103 to rotate around the central axis of the support column 103, which facilitates the replacement of the wound tube heat exchanger 200.

[0052] The structure of the straightening assembly 110 is as follows: it includes a lower wheel seat 11003 fixed to the outer end face of the connecting rod 109, an upper wheel seat 11001 is installed on the outer side above the lower wheel seat 11003 via a hinge, and multiple straightening rubber wheels 11002 (three in this embodiment) are arranged parallel to each other inside the upper wheel seat 11001 and the lower wheel seat 11003.

[0053] The straightening rubber wheel 11002 has multiple grooves that match the round tubes. Four round tubes fit into the grooves one at a time, meaning that the four round tubes are combined here and output together.

[0054] The clamping roller 111 is made of rubber. Multiple recesses matching the round tubes are arranged on the clamping roller 111 from one end to the other. The same four round tubes are pressed by the clamping roller 111 at the same time. The clamping roller 111 is also located above the wound tube heat exchanger 200. With the movement of the tube winding carriage assembly 100 and the rotation of the wound tube heat exchanger 200, the four round tubes can be wound onto the wound tube heat exchanger 200.

[0055] In actual work, the tube winding is completed through the following operating procedures:

[0056] Step 1: Preparation;

[0057] Prepare the support rotation assembly 300, the tube winding trolley assembly 100, and the wound tube heat exchanger 200;

[0058] Step 2: Installation of the spiral wound tube heat exchanger 200;

[0059] One end of the wound tube heat exchanger 200 is placed on the driven roller support 302, and the other end of the wound tube heat exchanger 200 is placed on the driving roller support 304; the wound tube heat exchanger 200 can be rotated by the action of the drive motor 305 and the reducer 306.

[0060] Step 3: Installation of the round tube;

[0061] Install the round tube onto the tube winding disc 101;

[0062] Step 4: Straightening and conveying of the round tube;

[0063] First, the head of the round tube enters the conveying clamping assembly 108, and then enters the summing and straightening assembly 110;

[0064] Step 5: Pipe winding operation;

[0065] The straightened circular tube is wound around the outer surface of the wound tube heat exchanger 200. As the winding trolley assembly 100 moves on the guide rail 114, the wound tube heat exchanger 200 rotates and winds at the same time. The entire circular tube winding work can be completed by repeating this process.

[0066] Step 6: Done.

[0067] The above steps make it easy to complete the winding of the 200-tonnage spiral wound tube heat exchanger. The overall operation is reliable and efficient.

[0068] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A special tube winding device for a large-tonnage wound tube heat exchanger, characterized in that: The system includes a tube winding carriage assembly (100), on which multiple coils of round tubes are distributed. The tube winding carriage assembly (100) straightens the round tubes and outputs them. A wound tube heat exchanger (200) to be wound is arranged at the corresponding position of the output end of the tube winding carriage assembly (100). The wound tube heat exchanger (200) is supported and installed by a support rotation assembly (300). The wound tube heat exchanger (200) can rotate. The tube winding carriage assembly (100) outputs the straightened round tubes, which are wound to the outer surface of the wound tube heat exchanger (200). The structure of the support rotation assembly (300) is as follows: it includes a driven base (301) and a driven base (303) arranged at intervals. A driven roller support (302) is installed on the driven base (301), and a driven roller support (304) is installed on the driven base (303). A wound tube heat exchanger (200) is installed between the driven roller support (304) and the driven roller support (302). A drive rotation motor (305) and a reducer (306) are also provided next to the driven roller support (304). The output end of the reducer (306) is connected to the driven roller support (304).

2. The special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 1, characterized in that: A door frame (307) is also installed on the outside of the active base (303) via the base. Symmetrical inner rails (310) are arranged on the inner side of the door frame (307). A floating block (308) is installed between the two inner rails (310). A universal coupling (309) is fixedly installed on the end face of the floating block (308) facing the active roller support (304). The universal coupling (309) is connected to the central shaft of the wound tube heat exchanger (200).

3. The special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 2, characterized in that: The universal coupling (309) is a non-telescopic universal coupling.

4. The special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 1, characterized in that: The structure of the winding trolley assembly (100) is as follows: it includes guide rails (114) arranged at intervals, and trolley bases (115) that slide along the guide rails (114) are installed on the two guide rails (114) at the same time. A support column (103) is fixed at the center of the upper surface of the trolley base (115). A set of winding discs (101) are arranged on each side of the support column (103). A lifting arm (104) is vertically installed above the support column (103). A straightening component is installed on the lifting arm (104).

5. A special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 4, characterized in that: The height of the support column (103) is higher than the installation height of the wound tube heat exchanger (200).

6. The special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 4, characterized in that: A lifting motor (102) for controlling the up and down movement of a single winding disc (101) is installed on the top surface of the support column (103).

7. A special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 4, characterized in that: The installation structure of the straightening component is as follows: it includes a column (105) fixed on the lifting arm (104), a set of vertically spaced and parallel connecting frames (106) installed on the outside of the column (105), a horizontal frame (107) fixed at the head of each connecting frame (106), and conveying clamping components (108) installed at both ends of the horizontal frame (107), that is, there are four conveying clamping components (108), which correspond to four winding discs (101) respectively; a connecting rod (109) is fixed on the outer end face of the lifting arm (104), a straightening component (110) and a slender side arm (113) are fixed at the head of the connecting rod (109), and a pressure wheel (111) is installed at the head of the side arm (113) through the mounting seat (112), and the pressure wheel (111) presses down on the round tube.

8. A special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 7, characterized in that: The structure of the overall straightening assembly (110) is as follows: it includes a lower wheel seat (11003) fixed to the outer end face of the connecting rod (109), an upper wheel seat (11001) is installed on the outer side above the lower wheel seat (11003) via a hinge, and multiple straightening rubber wheels (11002) are arranged parallel to each other inside the upper wheel seat (11001) and the lower wheel seat (11003).

9. A special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 8, characterized in that: The straightening rubber wheel (11002) is provided with multiple grooves, which match the round tube.

10. A special tube winding device for a large-tonnage wound tube heat exchanger as described in claim 7, characterized in that: The clamping roller (111) is made of rubber and has multiple recesses that match the round tube arranged from one end to the other.

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