KR101343089B1 - A heat exchanging tube for hrsg and manufacturing device thereof - Google Patents

Abstract

The present invention relates to a heat exchange tube for a heat recovery steam generator, which consists of heat exchange fins, and a manufacturing apparatus thereof. The heat exchange tube allows the fins to be alternately inclined and adjacent to the fins in the adjacent rows, accurately performs a fin forming work regardless of the welding speed of the fins, and allows the fins to be used in common regardless of the length and width of the fins. For the present invention, the manufacturing apparatus of the heat exchange tube for a heat recovery steam generator includes: an inclined fin forming part which alternately inclines each fin of the heat exchange fins in the winding direction of the heat exchange fins and deforms the fins among the heat exchange fins located opposite to each other to be adjacent to each other during a work for winding the heat transfer fins around a tube body in a spiral shape and welding the heat transfer fins. The heat exchange tube manufactured by the manufacturing apparatus is composed of planar fins and inclined fins inclined toward the planar fins.

Description

Heat transfer tube for waste heat recovery boiler and its manufacturing apparatus {a heat exchanging tube for HRSG and manufacturing device

The present invention relates to a heat transfer pipe, and more particularly, in the case of welding the heat transfer fins to the heat transfer tubes used in the waste heat recovery boiler, the fins of the heat transfer fins are alternately inclined one by one along the winding direction to increase the heat exchange efficiency. In addition, this work can be done precisely and accurately, and the heat pipe for the waste heat recovery boiler and its manufacturing apparatus can be adjusted according to the new type that can adjust the slope of each fin or the heat spacing of each fin. It is about.

In general, a heat recovery steam generator (Heat Recovery Steam Generator) generates steam by using high-temperature exhaust gas emitted after generating power in a gas turbine such as a large vessel, and by using the steam generated by driving the steam turbine It is a boiler that produces electricity.

The waste heat recovery boiler is made by arranging heat transfer tubes 10 for exchanging heat with the exhaust gas flowing from a steam turbine, and is configured to allow fluid (water) to flow into the heat transfer tubes 10. The heat transfer fins 12 are formed to be spirally wound while forming a plurality of heats to the outside of the heat transfer tube 10 so that the water flowing in the heat transfer tube 10 is evaporated by the exhaust gas introduced from the gas turbine to vapor. It can then be used as steam to drive the steam turbine.

However, the heat pipe 10 according to the conventional general technique described above has a horizontal structure as shown in FIGS. 1 to 3 to which the fins 12a of the heat transfer fins 12 integrated along its outer surface are attached. As it was formed, the heat exchange with the exhaust gas passing between the fins 12a of each row was not made smoothly, and thus there was a problem that the heat exchange performance was low.

Of course, in recent years, as described in Korean Patent No. 10-1114533, the fins 12a constituting the heat-transfer fins 12 are formed to be curved while forming an irregular zigzag shape in front and rear to improve heat exchange efficiency. have.

However, the heat transfer tube 10 according to the related art described above has a problem that the actual heat exchange efficiency does not increase much even when the fins 12a are bent in the shape as described in the related art.

In addition, the above-described conventional technology is considered that the heating fin 12 is configured to be forcibly rotated by the driving of the drive motor during the bending while welding the heat transfer fin 12 to the heat transfer tube 10, the heat transfer fin 12 Although the welding speed with respect to and the rotational speed of the rotating body according to the driving of the driving motor should be set to be exactly proportional, the setting is extremely difficult and even if an unexpected supply failure of the heating fin occurs, the rotating body is Regardless of the problem, there is also a problem in that molding defects for the heating fins are caused as the molding operation is continuously performed regardless of the rotation, and when the length or width of each fin constituting the heating fins 12 is changed, the rotor is replaced. There were additional manufacturing inconveniences that required design and new facilities.

The present invention has been made to solve the various problems of the prior art described above, an object of the present invention is to form a structure in which each fin of the heat transfer fin constituting the heat transfer tube alternately inclined toward the fin located in the adjacent heat exchange efficiency In order to further improve this, and to form the above-described fins, the welding of the heating fins can be performed at the same time as the welding of the heating fins, regardless of the welding speed of the heating fins to ensure that the operation of forming each pin can be made correctly It is possible to prevent this, and to provide a heat pipe for the waste heat recovery boiler according to a new form and its manufacturing apparatus that can be used in common regardless of the length and width of each fin of the heat transfer fin.

According to the heat transfer pipe for waste heat recovery boiler of the present invention for achieving the above object; A heat transfer fin including a fixed end fixed while being spirally wound to form a plurality of rows along the outer circumferential surface of the tube body, and a plurality of fins formed to be spaced apart from each other while extending in the radial direction of the tube body from the fixed end; Each of the fins constituting the heating fin is composed of an inclined pin and a non-tilted non-inclined pin inclined toward the pin located on the opposite side of each row, and the inclined pin and the non-inclined pin are the winding direction of the heating fin. Along one another is characterized by being formed alternately.

Here, the surface of the heat transfer fin is characterized in that it is formed of any one structure of a plurality of grooves or protrusions irregularities formed, or embossed structure.

In addition, according to the heat pipe manufacturing apparatus for waste heat recovery boiler of the present invention for achieving the above object while spirally winding the plate-type heat transfer fins are formed by integrating the fins spaced apart from each other on the outer peripheral surface of the tube body rotated at a constant speed In the heat pipe manufacturing apparatus for welding, while the heating is spirally wound around the tube body while the welding operation is in progress, each of the fins constituting the heat transfer fins alternately inclined one by one along the winding direction of the heat transfer fins It characterized in that the inclination pin forming portion is further included to deform so that the fins located on the opposite side between each row of the heat transfer fins close to each other.

Here, the inclined pin forming unit is installed so as to protrude to the surface or the vertical support is installed vertically on the work table, the horizontal support is installed in a direction perpendicular to the vertical support, the upper end portion of the horizontal support The rotating shaft is installed so as to rotate freely in the circumferential direction, and is provided on the upper end of the rotating shaft, the circumferential surface is formed with a plurality of pressing projections are projected while being spaced apart from each other while inclining each pin of the heat transfer fins of the previously wound And a pressing member for providing a pressing force to approach the pin.

In addition, the vertical support is provided with a lifting block to move up and down along the vertical support, the horizontal support is characterized in that the horizontal block is installed so as to move horizontally from the lifting block.

In addition, the rotating shaft is installed to be inclined from the upper surface of the end portion of the horizontal support, the pressing member is characterized in that each pressing projection is formed in the shape of a spur gear forming a tooth.

In addition, the rotating shaft is installed in a vertical state from the top of the end portion of the horizontal support, the pressing member is characterized in that it is formed in a bevel gear shape of which diameter decreases toward the top.

In addition, a rotation support block is fixedly installed at an end portion of the horizontal support, and an upper surface of the rotation support block is provided with an accommodation groove for accommodating a lower portion of the rotation shaft, and a rotation shaft accommodated in the accommodation groove in the accommodation groove. It characterized in that the plurality of bearings are installed to support the rotation while wrapping the lower portion of the.

The heat pipe manufacturing apparatus for waste heat recovery boiler having the inclined fin forming portion of the present invention as described above is formed in a structure for bending each fin itself of the prior art by forming each fin forming the heat transfer tube to form a combination of the inclined fin and the non-inclined pin. Compared with the heat exchange performance, the heat pipe can be manufactured.

Moreover, the heat pipe manufacturing apparatus for waste heat recovery boiler having the inclined fin forming portion of the present invention is a natural rotation method in which the pressure member for forming the inclined fin is rotated by the heat transfer fin, not a method of being forcibly driven irrespective of the winding of the heat transfer fin. According to the configuration, the accurate inclination fins can be formed at all times, and when the supply of the heating fins is unexpectedly generated and the supply of the heating fins is not made, the pressing member is also stopped and no further forming work is performed. It has the effect of being able to prevent molding defects.

In addition, the heat pipe manufacturing apparatus for waste heat recovery boiler having the inclined fin forming portion of the present invention is possible to adjust the inclination angle of each of the inclined fins constituting the heating fin because the position can be adjusted in the vertical direction and the horizontal direction with respect to the pressing member. This has the effect of enabling common use regardless of the size or type of the heat transfer tube.

1 is a front view showing a conventional heat pipe for the waste heat recovery boiler for explaining
Figure 2 is a side cross-sectional view showing a conventional heat pipe for the waste heat recovery boiler.
Figure 3 is a developed view showing a conventional heat pipe for the waste heat recovery boiler
4 is a front view showing the heat pipe for the waste heat recovery boiler according to an embodiment of the present invention.
Figure 5 is a side cross-sectional view showing for explaining the heat pipe for the waste heat recovery boiler according to an embodiment of the present invention.
6 is an exploded view showing the heat pipe for the waste heat recovery boiler according to an embodiment of the present invention.
7 is a front view showing for explaining a heat pipe manufacturing apparatus for waste heat recovery boiler according to an embodiment of the present invention.
8 is a plan view showing for explaining a heat pipe manufacturing apparatus for waste heat recovery boiler according to an embodiment of the present invention.
Figure 9 is a side view showing for explaining the heat pipe manufacturing apparatus for waste heat recovery boiler according to an embodiment of the present invention.
10 is a front view showing for explaining a heat pipe manufacturing apparatus for waste heat recovery boiler according to another embodiment of the present invention.
11 is a plan view showing for explaining a heat pipe manufacturing apparatus for waste heat recovery boiler according to another embodiment of the present invention.
Figure 12 is a side view showing the main part in cross-sectional view for explaining the heat pipe manufacturing apparatus for waste heat recovery boiler according to another embodiment of the present invention.

Hereinafter, a preferred embodiment of the heat pipe for the waste heat recovery boiler of the present invention and its manufacturing apparatus will be described with reference to FIGS. 4 to 12.

4 to 6 show a heat pipe for waste heat recovery boiler according to an embodiment of the present invention.

According to this, the heat pipe 100 for waste heat recovery boiler according to an embodiment of the present invention comprises a tube body 110 and the heat transfer fin 120, in particular, each fin (122,123) forming the heat transfer fin 120 Is characterized in that it is formed in an alternately inclined or non-tilted structure, and is configured to be close to each other with the pins 122 and 123 located on opposite sides of the previously wound rows.

This will be described in more detail below for each configuration.

First, the tube body 110 is configured to form a passage through which fluid flows, and the tube body 110 is formed as a hollow cylindrical tube.

In addition, the heat transfer fin 120 is configured to conduct heat contained in the exhaust gas to the tube body 110 while heat-exchanging with the exhaust gas passing through the outer surface of the tube body 110. At this time, the exhaust gas is exchanged while passing in a direction perpendicular to the longitudinal direction formed by the tube body (110).

The heat transfer fins 120 are made by cutting a flat plate having a narrower height than the diameter of the tube body 110 at regular intervals along its winding direction, and for convenience of description, the heat transfer fins 120 are formed by the tube body ( A fixed end 121 spirally wound and fixed while forming a plurality of rows along the outer circumferential surface of the 110 and the incision structure extending from the fixed end 121 in the radial direction of the tube body 110. For example, it is composed of a plurality of pins 122 and 123 spaced apart from each other.

In particular, in the embodiment of the present invention, each of the fins 122 and 123 constituting the heat transfer fin 120 is inclined toward the pins 122 and 123 positioned on the opposite side of each row, and the inclined pin 122 is not inclined. It is made of a non-inclined pin 123, wherein the inclined pin 122 and the non-inclined pin 123 is characterized in that it is configured to be formed alternately one by one along the winding direction of the heat transfer pin 120, this The turbulence is caused by the structure of the two fins 122 and 123 positioned on the side perpendicular to the passage direction of the exhaust gas while the exhaust gas passes between the inclined pins 122 and the non-inclined pins 123 that are opposed to each other in each row. It is made so that the heat exchange is made more smoothly.

Of course, when the heating fins 120 are spirally wound on the outer surface of the tube body 110 and welded, the fins 122 and 123 of each row constituting the heating fins 120 may not all match exactly in the column direction. have. However, even though the fins 122 and 123 of each row are not exactly matched in the column direction but only roughly coincide with each other, the above-described fins 122 and 123 are alternately inclined to interfere with the flow of exhaust gas passing between the rows and the rows. In addition, some turbulence may occur in the airflow, and thus, a sufficient heat exchange effect may be obtained while smoothly passing the exhaust gas.

In addition, in the embodiment of the present invention, the fixed end 121 constituting the heat transfer fin 120 and the surface of each of the fins 122 and 123 are formed with a plurality of grooves 124 or protrusions (not shown). It is proposed to form any one of the embossed structure.

That is, the heat exchange performance with the exhaust gas may be further improved by increasing the surface area of the heat transfer fins 120 by the uneven structure or the embossed structure by the grooves 124 or the projections.

As a result, the heat pipe 100 for waste heat recovery boiler according to an embodiment of the present invention is due to the inclined structure and irregularities of the fins 122 and 123 of each of the fins 122 and 123, or the heat transfer fins 120 of each row due to the embossing structure. The heat exchange performance with the exhaust gas passing through it can be improved, thereby making it possible to further improve the energy recovery rate for the exhaust gas.

On the other hand, the heat transfer pipe 100 according to the embodiment of the present invention as described above takes a lot of work time to simply proceed manually forming the inclined alternately each of the fins 122,123 constituting the heat transfer fin 120 Many operational difficulties also exist.

Accordingly, in the embodiment of the present invention by further comprising the inclined fin forming unit 200 in the heat pipe manufacturing apparatus for manufacturing the heat pipe 100 to form each of the fins 122,123 of the heat transfer fin 120 to be inclined alternately. It is further suggested that the process can be carried out by an automated process.

Referring to the heat transfer tube manufacturing apparatus according to an embodiment of the present invention as described above in more detail with reference to Figures 7 to 9 as follows.

First, the inclined pin forming unit 200 according to the embodiment of the present invention is proposed to include a vertical support 210, a horizontal support 220, a rotating shaft 230 and the pressing member 240.

Here, the vertical support 210 is formed of a shaft that is vertically installed on the ground or a work table, the lifting support 250 for the connection with the horizontal support 220 is lifted on the vertical support 210 formed in this way. It is installed to be movable.

At this time, the lifting block 250 is formed with a first through hole 251 which is vertically penetrated so that the vertical support 210 penetrates vertically, and an outer circumferential surface of the vertical support 210 and the first through hole ( The inner circumferential surface of 251 is formed in a screw structure corresponding to each other, and thus it is possible to adjust the lifting distance of the lifting block 250.

The horizontal supporter 220 is formed of a shaft installed in a direction perpendicular to the vertical supporter 210.

The horizontal support 220 is installed to move horizontally while horizontally penetrating the lifting block 250. At this time, the lifting block 250 is formed with a second through hole 252 penetrated in the horizontal direction so that the horizontal support 220 penetrates horizontally, and an outer circumferential surface of the horizontal support 220 and the second through hole ( The inner circumferential surface of the 252 is formed in a screw structure corresponding to each other, it is possible to adjust the horizontal movement distance of the horizontal support (220).

The vertical support 210, the horizontal support 220 and the lifting block 250 as described above is a structure for changing the position of the pressing member 240 as needed. That is, the inclination angle of the inclined pins 122 among the fins 122 and 123 forming the heat fins 120 should be appropriately changed according to the interval between the rows of the heat fins 120 wound on the tube body 110. In this case, the adjustment of the inclination angle is performed by adjusting the position of the vertical support 210, the horizontal support 220, and the lifting block 250.

In addition, the rotation shaft 230 is a portion for installing the pressing member 240 to the horizontal support 220, it is installed so as to protrude while inclined from the upper surface of the end portion of the horizontal support (220).

In particular, in the embodiment of the present invention is characterized in that the rotating shaft 230 can be rotated freely in the circumferential direction, through this according to the welding speed of the heat transfer fin 120 and the winding speed on the tube body 110 through As the pressing member 240 is rotated differently, the work of alternately tilting the pins 122 and 123 may be always performed accurately, thereby preventing molding defects.

That is, in the prior art and when the pressing member 240 is configured to be constantly forcedly rotated by the rotary motor, the pins 122 and 123 are alternated when the welding speed of the heat transfer fin 120 and the winding speed on the tube body 110 are changed. The inclined operation is inevitably made inaccurately, and even if the heating fin 120 is temporarily not wound on the tube body 110 due to a malfunction or malfunction, the pressurizing member 240 is forcibly rotated. 100) There is a possibility that a molding defect with respect to the whole may occur, but the above-described problem of the prior art can be solved by the technique (a technique for freely rotating the pressing member) according to the embodiment of the present invention. .

At this time, the rotation support block 260 for fixing the installation of the rotary shaft 230 and its rotation is fixed to the end portion of the horizontal support 220, the rotary shaft ( A plurality of accommodating grooves 261 for accommodating the lower end portion of the 230 are formed in the recesses, and a plurality of the supporting grooves are supported in the accommodating grooves 261 to surround the lower portions of the rotary shafts 230 accommodated in the accommodating grooves 261. Bearing 262 is installed. As a result, the pressing member 240 can stably perform free rotation.

In addition, the pressing member 240 is a portion which is provided at the upper end of the rotating shaft 230 and deforms to incline by pressing each pin (122,123) constituting the heating fin 120 alternately.

The pressing member 240 has a structure in which a plurality of pressing protrusions 241 protrude along the circumferential direction, wherein each of the pressing protrusions 241 is one at each of the fins 122 and 123 of the heat transfer fins 120. Spacing is formed while having an interval enough to be inclined alternately one by one, and protrudingly formed while having a protrusion height enough to provide a pressing force for tilting each of the pins 122 and 123.

In particular, the pressing member 240 is formed so that each pressing protrusion 241 in the form of a spur gear forming a tooth can be made smoothly inclined the inclination pin 122 with the inclination installation structure of the rotating shaft 230 described above. Make sure

On the other hand, although not shown, the heat pipe manufacturing apparatus for waste heat recovery boiler according to an embodiment of the present invention is an operation unit for moving in the axial direction while rotating the tube body 110, and a heat transfer fin supply unit for supplying the heat transfer fin 120 ( Not shown), and a high frequency welding part 300 for welding a contact portion between the tube body 110 and the heat transfer fin 120 is included, which is described in Korean Patent No. 10-1114533. Since it is shown in Figure 1 specific description and description will be omitted.

Hereinafter, a process of manufacturing the heat transfer tube 100 using the heat transfer tube manufacturing apparatus for waste heat recovery boiler according to the embodiment of the present invention described above will be described in more detail.

First, the tube body 110 is installed in the operating unit and rotates in the circumferential direction by the driving of the operating unit, and moves in the axial direction, and the heat transfer fin 120 has the fixed end 121 at the tube body 110. While being provided in contact with the outer circumferential surface of the tube body 110 by rotating and horizontal movement is wound in a spiral while forming a plurality of rows on the outer circumferential surface of the tube body 110. In addition, the welding part welds a contact portion between the tube body 110 and the heat transfer fin 120.

In addition, during the process described above, the inclined fin forming unit 200 according to the embodiment of the present invention alternately inclining each of the fins 122 and 123 of the heat transfer fins 120 welded to the outer circumferential surface of the tube body 110. Do the work.

At this time, the pressing member 240 constituting the inclined pin forming portion 200 is a heat transfer fin 120 fixed to the tube body 110 by the operation for adjusting the position of the vertical support 210 and the horizontal support 220. The pins 122 and 123 are in contact with each other, and the pins 122 and 123 are inclined while being deformed by the pressing force of the pressing member 240 by the contact between the pressing members 240 and the pins 122 and 123. .

In particular, the pressing member 240 has a configuration in which the plurality of pressing protrusions 241 protrude from each other along the circumferential direction in the shape of a gear, and are provided in an inclined state by the inclined installation structure of the rotary shaft 230. In consideration of each of the fins 122 and 123 constituting the heat transfer fins 120, all of the fins 122 and 123 are alternately inclined rather than inclined. That is, by forming the pitch (P1) of the pressing projections 241 to twice the size of the distance between the center (L1) of the pins (122,123), by changing the respective pins (122,123) inclined pins The 122 and the non-inclined pin 123 are to be formed while alternately sequentially.

In addition, the heat pitch P2 of the heat transfer fins 120 wound around the tube body 110 or the width L2 of each of the fins 122 and 123 is designed such that the fins 122 and 123 may coincide in the column direction. In addition, the inclined pin 122 and the non-inclined pin 123 is designed to be placed in a position facing each other. Through this, when the pressing member 240 presses and deforms any one of the inclined pins 122, the inclined pins 122 may be in close proximity to any one of the non-inclined pins 123 located on the opposite side of the adjacent column. .

Therefore, between the rows formed by the heat transfer fins 120 may have a structure in which the inclination or non-tilt between the fins 122 and 123 is repeated, thereby allowing the exhaust gas to pass through the exhaust gas in the corresponding direction. By making it possible to achieve some turbulence, the fins 122 and 123 between the rows are simply vertically erected, or the heat exchange effect is significantly improved compared to the prior art in which the pins 122 and 123 are bent to form an irregular zigzag shape in front and rear. It becomes possible.

On the other hand, during the formation of the inclined fin 122 of the above-described heating fin 120, the pressing member 240 is rotated by the heating fin 120, rather than being forcibly driven by a separate driving means.

That is, since the rotation shaft 230 to which the pressing member 240 is fixed is installed to rotate freely while being supported by the plurality of bearings 262 on the rotation support block 260, the heat transfer fin 120 is substantially formed. The non-inclined pin 123 pushes the pressing protrusion 241 of the pressing member 240 to rotate the pressing member 240.

Accordingly, the pressing member 240 is rotated while being proportional to the speed at which the heating fins 120 are welded to the tube body 110 at all times, and the winding speed of the heating fins 120 suddenly occurs due to an unexpected phenomenon. Even if it is faster or slower, a molding failure with respect to the heating fin 120 may be prevented.

On the other hand, the heat pipe manufacturing apparatus for waste heat recovery boiler according to the present invention is not limited to being formed only in the structure of the above-described embodiment.

That is, as shown in Figures 10 to 12 attached to the rotating shaft 230 is installed perpendicular to the upper end of the end portion of the horizontal support 220, and the pressing member 240 is a bevel that the diameter decreases toward the top It may be configured to allow the operation of tilting the inclined pin 122 to be formed in a gear shape.

As such, the heat pipe manufacturing apparatus for waste heat recovery boiler of the present invention by forming each fin (122,123) constituting the heat pipe 100 to form a combination of the inclined fin 122 and the non-inclined fin (123) of the prior art itself. Compared to the bending molded structure, it is possible to manufacture heat transfer tubes having improved heat exchange performance.

In addition, in the heat pipe manufacturing apparatus for waste heat recovery boiler of the present invention, the pressing member 240 for forming the inclined fin 122 is not a forced driving method irrespective of the winding of the heat transfer fin 120, the heat transfer fin 120 As it is configured by the natural rotation method that is rotated by the accurate inclination of the fins 122 is always possible, and the unexpected supply failure of the heating fins 120 occurs when the supply of the heating fins 120 is not made Since the pressing member 240 is also stopped to stop the further molding work it is possible to prevent the overall failure of the heat transfer tube (100).

In addition, the heat pipe manufacturing apparatus for waste heat recovery boiler according to the present invention, since the position can be adjusted in the vertical direction and the horizontal direction with respect to the pressing member 240, the inclination angle of each inclined fin 122 forming the heat transfer fin 120. It is possible to adjust for, thereby enabling the use in common regardless of the size or type of the heat transfer fin 120.

100. Heat pipe 110. Tube body
120. Heating pin 121. Fixed end
122. Inclined pin 123. Non-inclined pin
124. Groove 200. Inclined pin formation
210. Vertical Support 220. Horizontal Support
230. Rotating shaft 240. Pressure member
241. Pressing protrusion 250. Lifting block
251. First through hole 252. Second through hole
260. Rotating support block 261. Receiving groove
262. Bearing 300. High frequency welds

Claims (8)

delete delete In the heat pipe manufacturing apparatus for welding while spirally wound a flat plate of the heat transfer fin formed by integrating the fins spaced from each other on the outer peripheral surface of the tube body rotated at a constant speed,
While welding the heating fins spirally wound around the tube body, each of the fins constituting the heating fins is alternately inclined one by one along the winding direction of the heating fins, and is opposed to each other of the heating fins. It is configured to further include an inclined pin forming portion for deforming the pins located on the side adjacent to each other,
The inclined pin forming unit
A vertical support installed on the ground or vertically on a work table,
A horizontal support installed in a direction perpendicular to the vertical support;
Rotation shaft is installed to protrude to the upper surface of the end portion of the horizontal support and to be rotated freely in the circumferential direction,
It is provided on the upper end of the rotating shaft, the circumferential surface is formed with a plurality of pressing projections are projected while being spaced apart from each other by inclining each pin of the heat transfer pin while providing a pressing force so as to be adjacent to the pin of the previously wound column Heat pipe manufacturing apparatus for waste heat recovery boiler, characterized in that configured to include. delete The method of claim 3, wherein
A lifting block is installed on the vertical support to move up and down along the vertical support,
The horizontal support is a heat pipe manufacturing apparatus for a waste heat recovery boiler, characterized in that the horizontal block penetrates the lifting block is installed so as to move horizontally from the lifting block. The method of claim 3, wherein
The rotating shaft is installed to be inclined from the upper end portion of the horizontal support,
The pressing member is a heat pipe manufacturing apparatus for a waste heat recovery boiler, characterized in that each pressing projection is formed in the shape of a spur gear forming a tooth. The method of claim 3, wherein
The rotating shaft is installed in a vertical position from the upper end portion of the horizontal support,
The pressurizing member is a heat pipe manufacturing apparatus for a waste heat recovery boiler, characterized in that the bevel gear shape is reduced in diameter toward the top. The method according to any one of claims 3 and 5 to 7,
Rotating support block is fixed to the end of the horizontal support,
Receiving grooves are formed in the upper surface of the rotary support block for receiving the lower portion of the rotary shaft and a plurality of bearings are installed in the receiving groove to support the rotation while wrapping the lower portion of the rotary shaft accommodated in the receiving groove. Heat pipe manufacturing apparatus for waste heat recovery boiler, characterized in that.

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