KR101831511B1

KR101831511B1 - Carrying apparatus for hrsg

Info

Publication number: KR101831511B1
Application number: KR1020160023464A
Authority: KR
Inventors: 이진태; 김성언; 고혜리; 안종화
Original assignee: 제네럴 일렉트릭 테크놀러지 게엠베하
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2018-02-22
Also published as: KR20170100942A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat recovery steam generator (HRSG) transportation device, and more particularly, to a heat recovery steam generator (HRSG) First fixing means mounted on the frame and provided at both ends of the arrangement recovery boiler to detachably mount a tube supporter that fixes a plurality of rows of tubes; And a second fixing means mounted on the frame and fixed to a T-shaped tube supporter having a transverse member and a longitudinal member and provided between both ends of the arrangement recovery boiler for fixing a plurality of rows of tubes, A finging supporting a bottom surface of the T-shaped transverse member and including a first finger and a second finger mounted to be rotatable relative to each other; And a support for fixing the fingers to the frame. &Lt; IMAGE >

Description

{CARRYING APPARATUS FOR HRSG}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat recovery steam generator (HRSG) conveying device, and more particularly, to a batch recovery boiler conveying device used for conveying a batch recovery boiler.

Generally, the exhaust gas produced after power generation in a gas turbine of a generator has a high temperature of about 530 degrees and thus a lot of energy. When such high-temperature energy is released to the atmosphere, a significant energy loss is caused. Therefore, an arrangement recovery boiler is used to recover energy from the exhaust gas.

The batch recovery boiler generates steam using the exhaust gas of the gas turbine, and the steam generated in the batch recovery boiler is used to drive the steam turbine to produce electric power.

Such an arrangement recovery boiler has a plurality of heat exchangers (Harp) for obtaining steam by heat exchange with exhaust gas of a gas turbine, as disclosed in Korean Patent Laid-Open Publication No. 2001-0037297.

1 is a front view showing a heat exchanger of a conventional batch recovery boiler.

1, the heat exchanger includes a pair of headers 112 formed in a hollow shape, and a plurality of tubes 114 connecting the pair of headers 112 and having a pin wound around the outer periphery thereof do.

The heat exchanger having such a configuration is distributed to the plurality of tubes 114 after the water flows into the inner space of any one of the pair of the headers 112. The water distributed to the plurality of tubes 114 is heat-exchanged with the hot exhaust gas passing through the outside of the plurality of tubes 114 to become steam. The generated steam passing through the plurality of tubes 114 is collected in the other of the pair of the headers 112 and then discharged to the outside to be used for power generation and the like.

On the other hand, the heat exchanger should be moved to a necessary place during the manufacturing process or after the completion of the manufacturing process, and a facility for moving the heat exchanger, which is a heavy product, is required. Here, the heat exchanger has a plurality of fins formed on the surface of the tube, so care must be taken not to deform the fin during transportation. In addition, since the heat exchanger is manufactured to have a thickness as thin as possible within a range where rigidity is maintained in order to improve the thermal conductivity, there is a high possibility that the heat exchanger is deformed when an external impact is applied.

FIGS. 2 to 4 are views showing a manner of conveying the heat exchanger. Referring to FIG. 2, the heat exchanger includes a plurality of T-shaped tube supporters 116 in a direction orthogonal to the longitudinal direction of the tube 114. In addition, a tube supporter 118 inserted between the plurality of tube rows of the plurality of tubes to support the respective tube rows is provided at both ends of the tube 114.

The T-shaped tube supporter 116 basically has a role similar to that of the tube supporter 118, but differs in that its cross-sectional shape is approximately T-shaped. On both sides of the tube supporter 118, a plurality of semicircular fixing grooves for supporting the tube from the inside are formed, and a jig groove 118a is formed in the space between them.

The jig groove 118a functions as a fixing part to be coupled with a crane for moving the heat exchanger. Specifically, the heat exchanger can be carried by the creel 150 as shown in FIG. The crane 150 includes a plurality of chains 152 and a fixing jig 154 provided at an end of the chain 152. The fixing jig 154 is directly fastened to the heat exchanger. To this end, the fixing jig 154 includes a detachable jig bar 154a. The jig bar 154a is inserted and detachably mounted to the fixing jig 154. [

Referring to FIG. 3, the jig bar 154a may be inserted and fixed in the jig groove 118a. Referring to FIG. 4, since the T-shaped tube supporter 116 does not protrude upward, it is impossible to apply the connection method shown in FIG. Accordingly, the T-shaped tube supporter 116 inserts the jig rod 154a of the fixing jig 154 after machining the jig groove 116a in the tube supporter body disposed between the tubes. As a result, as shown in FIG. 2, both end portions and the central portion of the heat exchanger can be moved in a state fixed to the crane.

However, since the above-described transportation system additionally requires a work for machining the jig grooves in the T-shaped tube supporter, there is a problem that the working time is increased and the work difficulty is increased. Further, depending on the arrangement of the tubes, there are cases where it is impossible to process the jig grooves as described above. In this case, since only both ends of the tube need to be fixed and moved, there is a problem that the center of the tube is deformed and deformed.

SUMMARY OF THE INVENTION It is a general object of the present invention to provide a transfer device which can more easily and stably transfer a heat exchanger of an arrangement recovery boiler.

According to an aspect of the present invention, there is provided a frame including: First fixing means mounted on the frame and provided at both ends of the arrangement recovery boiler to detachably mount a tube supporter that fixes a plurality of rows of tubes; And a second fixing means mounted on the frame and fixed to a T-shaped tube supporter having a transverse member and a longitudinal member and provided between both ends of the arrangement recovery boiler for fixing a plurality of rows of tubes, A finging supporting a bottom surface of the T-shaped transverse member and including a first finger and a second finger mounted to be rotatable relative to each other; And a support for fixing the fingers to the frame. &Lt; IMAGE >

The first finger and the second finger may be respectively disposed on the bottom surface of the transverse member, and may include a holding member penetrating the first and second fingers, respectively.

Also, the holding member may include a holding bar inserted to penetrate the first and second fingers in a superimposed state; And a fixing member inserted into one end of the holding bar.

Further, a plurality of finger portions spaced along the transverse direction of the tube may be provided, and spacers may be provided to adjust the spacing between the plurality of fingers.

Further, the spacers may include spacing rods that penetrate the plurality of fingers along the longitudinal direction of the tube and each have threaded portions near both ends thereof; And an interval setting nut which is fastened to the threaded portion and abuts against the plurality of fingers to prevent movement of the finger portion.

In addition, the first and second finger portions may become narrower toward the distal end.

According to another aspect of the present invention, there is provided a fixing means for fixing to a T-shaped tube supporter having a transverse member and a longitudinal member and provided between both ends of an arrangement recovery boiler for fixing a plurality of rows of tubes provided in an arrangement recovery boiler, A finging supporting a bottom surface of the T-shaped transverse member and including a first finger and a second finger mounted to be rotatable relative to each other; A hinge shaft rotatably supporting the finger portion; And a support portion on which the hinge shaft is supported and fixed to the crane. The tube supporter fixing means of the arrangement recovery boiler is provided.

According to an aspect of the present invention including the above-described configuration, it is possible to more safely and easily carry the batch recovery boiler, thereby providing an effect of improving productivity and lowering the degree of difficulty of work.

1 is a front view of a heat exchanger of a typical batch recovery boiler,
FIG. 2 is a photograph showing a state of conveying the heat exchanger shown in FIG. 1,
FIG. 3 is a photograph showing the T-shaped tube supporter in FIG. 2,
Fig. 4 is a photograph showing the vicinity of both ends of the heat exchanger in Fig. 2,
FIG. 5 is a front view showing an embodiment of a conveying apparatus for a batch recovery boiler according to the present invention, FIG.
FIG. 6 is a side view showing the folded state of the first and second fingers in the embodiment shown in FIG. 5,
FIG. 7 is a side view showing a state in which the first and second fingers are unfolded in the embodiment shown in FIG. 5,
8 is an enlarged front view of the fixing device in Fig. 5, Fig.
FIG. 9 is a front view showing the first and second fingers in FIG. 8,
Fig. 10 is a front view showing the support portion in Fig. 8,
11 is a front view showing a spacer in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of a delivery apparatus for a batch recovery boiler according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 5, there is shown a first embodiment of a delivery apparatus for an array recovery boiler according to the present invention. 2, specifically, a fixing jig is applied to a tube supporter provided at both ends of an exhaust heat recovery heat exchanger according to a conventional method, Centered T-shaped tube supporter.

That is, the first embodiment is disposed below the frame 150 of the crane. To this end, the crane includes a chain mounting portion 151 rotatably fixed to a lower portion of the frame 150, And a chain 152. One end of the chain mounting portion 151 is hinged to a lower portion of the frame 150, and the chain 152 is fixed to the other end.

A shackle 210 having a substantially U-shape is connected to the chain 152. The fixing pin 212 (see FIG. 8) is fitted to the open end of the shackle 210 to fix the chain 152 so as not to be detached. A connecting rod 220 is mounted on the fixing pin 212. The connecting rod 220 has a flat bar shape and has hinge-coupling holes at both ends thereof. One end of the connecting rod 220 is rotatably mounted on the pin of the fixing pin 212, and the other end of the connecting rod 220 is hinged to a support member.

The support member 250 supports a pair of fingers 230 and 240 in the vicinity of both ends. Specifically, a first finger 230 and a second finger 240 are supported at both ends of the support member 250, and the first and second finger portions have first and second fingers, respectively.

As shown in FIG. 5, the first and second finger portions are disposed so as to be inserted between two neighboring heat exchange tubes. That is, the interval between the first and second finger portions corresponds to the diameter of one tube. However, the present invention is not limited thereto, and two or three tubes may be disposed between the first and second finger rings.

The first and second finger portions are provided for fixing the T-shaped tube supporter 116 described above. The T-shaped tube supporter 116 includes a transverse member 116a disposed in the transverse direction and a transverse member 116b disposed in the longitudinal direction from the center of the transverse member. The first and second fingers are disposed on the bottom of the transverse member 116a to support the T-shaped tube supporter during the ascending and descending processes.

6 and 7, the second fingers 240 include first and second fingers 241 and 242, which are rotatably mounted to the support member 250 . The end portions of the first and second fingers 241 and 242 are bent so as to be brought into close contact with the bottom surface of the transverse member. When the external force is not applied, the end portions of the first and second fingers They are in contact with each other.

6, when the first and second fingers are placed on the bottom surface of the transverse member 116a, they are in contact with each other with their longitudinal members 116b interposed therebetween by their own weight, Even if the frame rises, the state shown in Fig. 6 is maintained even if a separate fixing device is not used due to the weight of the arrangement recovery boiler and the weight of the fingers.

When the arrangement recovery boiler is transported to a desired place, the crane can be lowered to separate the two fingers from the T-shaped tube supporter by separating the two fingers from each other as shown in FIG.

Now, with reference to Figs. 8 to 11, the first embodiment will be described in more detail. Referring to FIG. 8, the first embodiment 200 includes the shackle 210 described above and the fixing pin 212 coupled to the shackle 210. A connecting rod 220 is connected to the fixing pin 212 and a rod-shaped supporting member 250 is connected to the connecting rod 220.

The first and second fingers 230 and 240 provided at both ends of the support member 250 include first and second fingers, respectively. Referring to FIG. 9, The first finger 241 includes a ring-shaped hinge engaging portion 2411 formed therein with a hole into which one end of the support member is inserted, and a second finger 241 extending vertically downward from the hinge engaging portion 2411 As shown in Fig.

The body portion 2412 is formed with a first insertion hole 2413 for insertion of a holding rod to be described later and a second insertion hole 2414 for insertion of a spacer to be described later. The end portion 2415 of the body portion 2412 is bent to have an angle of about 90 degrees to closely contact the bottom surface of the transverse member of the T-shaped tube supporter, as described above. In addition, the end portion 2415 has a tapered portion 2416 whose width becomes narrower downward as shown in FIG. The tapered portion 2416 allows the first and second fingers to be more easily inserted between two adjacent tubes.

On the other hand, the second fingering 242 basically has the same shape as the first fingering 241. Thus, the second fingers 242 also include a hinge joint 2421, a second insert hole 2424, a 90 degree bent end 2425, and a tapered portion 2426. The second fingers 242 may include an extension portion 2422 extending from the hinge coupling portion 2421 and the first insertion hole 2423 may be formed in the extension portion 2422 Which is different from the first fingerprint 241.

The extended portion 2422 is disposed so as to overlap with the body portion 2412 of the first finger 241 when the first and second fingers 241 and 242 are supported on the bottom surface of the transverse member 116a do. The first insertion hole 2423 formed in the extended portion 2422 is inserted into the first insertion hole 2423 of the first finger 241 when the extended portion 2422 is overlapped with the first finger 241, Hole 2413 in the same manner. In the state where the two first insertion holes 2413 and 2423 are in contact with each other, the holding rod 260 of the holding member is inserted. A fixing member 262 is fastened to the end of the holding bar 260 so that the holding bar 260 is not separated from the first and second fingers. In a state where the holding bar 260 is fitted in the two first insertion holes, the first and second fingers are fixed so as not to move with respect to each other.

As described above, the first and second fingers are not separated due to their own weight when they are supported by the T-shaped tube supporter. However, the two fingers may be fixed so that the two fingers are not separated from each other by using the holding rod in case an unintended external force is applied. That is, the holding bar functions as a safety device that prevents the T-shaped tube supporter from being separated from the first and second fingers during transportation.

Referring to FIG. 8, the first and second fingers 230 and 240 are mounted on both ends of the support member 250. Referring to FIG. 10, And a pair of fixing nuts 255 are fitted to the threaded portions 254. [ Between the two fixing nuts 255, the aforementioned first and second finger portions are fixed. On the other hand, a positioning groove 252 is formed in the center of the support member 250. The positioning groove 252 is recessed along the periphery of the support member 250.

The supporting member 250 is connected to the connecting rod 220 as described above and the connecting rod 220 includes a hole 221 connected to the fixing pin 212 and a hole 221 connecting the supporting member 250 And has an insertion hole 222. A fixing protrusion 223 is inserted into one side of the insertion hole 222. The fixing protrusions 223 are inserted to be able to advance and retract toward the center of the insertion hole 222, and are supported by elastic means (not shown) such as a coil spring. Therefore, the fixing protrusion 223 is retreated when an external force is applied, and protrudes into the insertion hole when an external force is removed.

The fixing protrusion 223 is engaged with the positioning groove 252 of the supporting member 250 so that the supporting member 250 can be fixed in position with respect to the connecting rod.

Meanwhile, the first and second finger portions should be disposed at different intervals according to the diameter and the interval of the applied tubes. That is, the interval between the first and second fingers must be arbitrarily adjustable, and the adjusted interval must be able to be maintained during operation.

To this end, spacers 270 are provided. Referring to FIG. 11, the spacer 270 includes an interval setting rod 271 passing through the first finger of the first finger portion and the first finger of the second finger portion, respectively. At both ends of the gap setting rod 271, two threaded portions 272 and 273 are provided, and a gap setting nut 276 is fastened to each of the threaded portions. The spacers together with the support member adjust the spacing between the two fingers and maintain a controlled spacing. In addition, the spacer also serves to synchronize the operation of two neighboring finger portions.

That is, since the first finger of the first finger portion and the first finger of the second finger portion are fixed so as not to move independently of each other, the spacer allows the finger portions to more stably support the T-shaped tube supporter.

Claims

A frame which is vertically mounted;
First fixing means mounted on the frame and provided at both ends of the arrangement recovery boiler to detachably mount a tube supporter that fixes a plurality of rows of tubes; And
And a second fixing means mounted on the frame and fixed to a T-shaped tube supporter having a transverse member and a longitudinal member and provided between both ends of the arrangement recovery boiler for fixing a plurality of rows of tubes,
The second fixing means
A finging supporting a bottom surface of the T-shaped transverse member and including a first finger and a second finger mounted to be rotatable relative to each other; And
And a support for fixing the finger portion to the frame,
Wherein a plurality of finger portions spaced apart from each other along the transverse direction of the tube are provided, and spacers for adjusting the distance between the plurality of fingers are provided.

The method according to claim 1,
And a holding member passing through the first and second fingers, respectively, so as to maintain the first and second fingers disposed on the bottom surface of the transverse member.

3. The method of claim 2,
The holding member
A holding rod inserted so as to penetrate the first and second fingers in a superimposed state; And
And a fixing member inserted into one end of the holding bar.

delete

The method according to claim 1,
The spacer
An interval setting rod penetrating the plurality of fingers along the longitudinal direction of the tube and having threaded portions in the vicinity of both ends; And
And an interval setting nut which is fastened to the threaded portion and abuts against the plurality of fingers to prevent movement of the finger portion.

The method according to claim 1,
Wherein the first and second fingers are narrowed toward the distal end.

A fixing means for fixing to a T-shaped tube supporter having a transverse member and a longitudinal member and provided between both ends of the arrangement recovery boiler for fixing a plurality of rows of tubes provided in the arrangement recovery boiler,
A finging supporting a bottom surface of the T-shaped transverse member and including a first finger and a second finger mounted to be rotatable relative to each other;
A hinge shaft rotatably supporting the finger portion; And
And a support portion supported by the hinge shaft and fixed to the crane,
And a plurality of finger portions spaced apart from each other along the transverse direction of the tube, and spacers for adjusting the distance between the plurality of finger rests.

8. The method of claim 7,
And a holding member penetrating the first and second fingers so as to maintain the first and second fingers disposed on the bottom surface of the transverse member. .

9. The method of claim 8,
The holding member
A holding rod inserted so as to penetrate the first and second fingers in a superimposed state; And
And a fixing member inserted into one end of the holding bar.

delete

8. The method of claim 7,
The spacer
An interval setting rod penetrating the plurality of fingers along the longitudinal direction of the tube and having threaded portions in the vicinity of both ends; And
And an interval setting nut which is fastened to the threaded portion and abuts against the plurality of fingers to prevent movement of the finger portion.

8. The method of claim 7,
Wherein the first and second finger portions are narrowed toward the distal end of the tubular supporter.