JPH03213994A - Supporting device for fintube - Google Patents

Abstract

PURPOSE:To enhance the earthquake-proof safety of cooling function of a tube by a method wherein a nail is provided to one of a pair of half-divided supporting members and an opening is provided to the other, so that the pair of members can be engaged integrally with each other by insertion of the nail into the opening. CONSTITUTION:A fintube 13 is covered with an upper side supporting member 15a and a lower side supporting member 15b in the vertical direction, and supported by a supporting box 15 consisting of these members 15a and 15b which are coupled integrally by insertion and bending of a nail 18 into an opening 19. Therefore, when outer force is applied, for example, in an earthquake, the box members 15a and 15b do not disengage from the tube 13. As a result, as the box members 15a and 15b are not injured at all, the box 15 having supporting function of the tube 13 can be improved in the earthquake-proof quality, and as a consequence, in the earthquake-proof safety of cooling function.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a support device for fin tubes in an air-cooled heat exchanger.

(Prior Art) Air-cooled heat exchangers are used as final heat sinks in industrial facilities both domestically and internationally.

A conventional fin tube support device used in an air-cooled heat exchanger will be described with reference to FIGS. 4 to 6. FIG. 4 shows a perspective view of the air-cooled heat exchanger in a state where the tube bundle 2 is removed from the pillar 6 and lifted up and disassembled. FIG. 5 shows an enlarged partial cross-sectional view of the tube bundle 2 in FIG. The figure shows an exploded view of how to assemble the fin tube 13 and the support box 15 for supporting it in FIG. 4. That is, the air-cooled heat exchanger indicated by reference numeral 1 in FIG.
, plenum 5, etc., and the frame pillars 6 that support them.
It consists of

The fan drive unit 3 includes an electric motor 8, a speed reducer 9, and a fan 10 installed on a machine stand 7, and a fan ring 4 and a fan guard 11 that cover the fan 10.

In the air-cooled heat exchanger 1, air is guided into the tube bundle 2 by a fan 1O to cool the fluid inside the tubes. The air-cooled heat exchanger 1 is classified based on the method of introducing the atmosphere into two types: a forced ventilation type and a suction ventilation type. The forced ventilation type refers to one in which the tube bundle 2 is provided on the air discharge side of the fan 10, and the suction ventilation type refers to one in which the tube bundle 2 is provided in the air suction side of the fan 10.

In the tube bundle 2, a plurality of fin tubes 13 are provided, which are manufactured by winding an aluminum ribbon along the grooves on the surface of the main tube, that is, the tube 12, or by rolling.

The fin tube 13 is a box-shaped box formed by pressing an aluminum material called a support box 15 without removing the fins 14 at regular intervals.The fin tube 13 is formed by a pair of half-split jigs with the central part cut out. is surrounded from above and below. These fin tubes 13 are arranged on a tube support 16 in a stacked manner as shown in FIG.
The uppermost stage of the fin tube 13 is held down by a shaped steel 17 disposed at the upper part.

In addition, as a special example, each fin tube 13 may be
It is also known that it is fixed to the support tube 16 with bolts. FIG. 6 shows the upper support box member 15 attached to the fin 14 provided on the outer surface of the fin tube 13 from above and below.
The state in which the fin tube 13 is supported is shown surrounded by a pair of support boxes 15 consisting of a lower support box member +5b and a lower support box member +5b.

(Problems to be Solved by the Invention) Generally, the support portion of the fin tube 13 is designed primarily to support only the weight of the fin tube 13, and no particular consideration is given to earthquake resistance. Furthermore, there are many cases in which a gap is created at the top of the fin tube support portion of the air-cooled heat exchanger 1 that is actually in operation.

Further, the fin tube support section is configured to have the function of supporting the fin tube 13 only when the individual support box members 15a, 15b are healthy.

Therefore, when an external force such as an earthquake is applied, the support part of the fin tube 13 causes collision vibration, and the support box member 15a of either the upper or lower fin tube 13
, 15b may come off, which may lead to problems such as loss of the cooling function of the air-cooled heat exchanger 1.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an economical fin tube support device that does not easily come off due to collision vibration or the like.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a support device for a fin tube in which a fin tube of an air-cooled heat exchanger is surrounded by a support box consisting of a pair of half-split support box members. The support box member is provided with a claw, and the other support box member is provided with an opening, and the mold is inserted into the opening to integrate both support box members.

(Function) When a pair of half-split support box members are placed over the outer periphery of the fin tube from above and below, and the fin tube is supported by the surrounding support box by inserting one claw into the opening of the other, the support box In addition to supporting the fin tube's own weight, even when external forces such as earthquakes are applied from vertical and horizontal directions, the fin tubes are locked together by the claws and openings, so they do not come off from each other and maintain the support function of the fin tube. can.

(Example) An example of a fin tube support device according to the present invention will be described with reference to FIG. In addition, in the figure, the same parts as in FIG. 6 are given the same reference numerals and explained.

That is, in FIG. 1, the fin tube 13 of the air-cooled heat exchanger is covered from above and below with the upper support box member 15a and the lower support box member +5b, and the claws 18 are inserted into the openings 19 and bent to integrate. It is supported by a support box 15.

Resilient claws 18 are attached to both ends of the upper support box member 15a, and openings 19 into which the mold 18 is inserted and folded are formed on both sides of the lower support box member +5b. ing.

Therefore, when the fin tube 13 is sandwiched between the pair of support boxes 15 consisting of the upper support box member 15a and the lower support box member 15b from both the upper and lower directions, the air 18 is inserted into the opening 19. It is then folded inward using a screwdriver, for example, and secured in place. In this way, the upper support box member 15a and the lower support box member +5b are integrated to form the support box 15.

According to the first embodiment, when an external force such as an earthquake is applied, the pair of support box members 15a, 15
b does not easily come off from the fin tube 13.

Therefore, the individual support box members 15a.

Only when +5b is healthy, the seismic resistance of the support box 15 having a support function for the fin tube 13 is improved, and the seismic safety of the cooling function is improved.

FIG. 2 shows an embodiment according to the present invention, in which claws 18 and openings 19 are provided on both sides of upper and lower support box members 15a and 15b, respectively, in the same vertically symmetrical shape. The rest of the configuration is the same as the example shown in FIG. 1, so the explanation thereof will be omitted. In this embodiment, when both the support box members 15a115b are stacked and integrated, the claws 18 of one are inserted into the openings 19 of the other and can be folded in from above and below, so that they can be easily removed. There is no such thing as standardization, and it can be standardized.

FIG. 3 shows a third embodiment of the present invention, in which a fan-shaped hook 20 is formed at the tip of the claw 18 in the second embodiment. The other configurations are the same as those of the second embodiment.

In this example, when the claw 18 is inserted into the opening 19, both wings of the hook 20 are caught in the opening 19, and the hook 20 cannot be easily pulled out. Therefore, the claw 1 is inserted into the opening 19.
Since there is no need to bend 8, support box 15
assembly becomes easier.

Note that the hook 20 can also be formed at the tip of the claw 18 in the first embodiment.

[Effects of the Invention] According to the present invention, the claws provided on one support box member are pushed into the openings provided on the other support box member, and are mutually connected and integrated with the other support box member. Configure a support box to support the fin tube.

Since the support box is prevented from being dislocated in the circumferential direction, the fins and the support box are firmly engaged with each other in the longitudinal direction of the fin tube. Therefore, the support box has a sound support function even against external forces in the horizontal and vertical directions, and the seismic safety of the cooling function of the fin tube, which has been a problem in the past, can be significantly improved.

In addition, compared to the conventional example in which each fin tube was fixed to a tube support with a U bolt or the like as a special example to improve seismic safety, the present invention is easier to install and maintain, and is more economical. You can improve your sexual performance.

[Brief explanation of drawings]

1 to 3 are exploded views showing first to third embodiments of a fin tube support device according to the present invention, and FIGS. 4 to 6 illustrate a conventional fin tube support device. Fig. 4 is a perspective view showing an air-cooled heat exchanger, Fig. 5 is a partial sectional view showing the tube bundle part in Fig. 4, and Fig. 6 shows a support device for the fin tube in Fig. 4. FIG. 2... Tube bundle 4... Fan ring 6... Pillar 8... Electric motor 10... Fan 12... Tube 14... Fint... Air-cooled heat exchanger 3... Fan drive section 5...Plenum 7...Machine stand 9...Reducer l...Fan guard 3...Fin tube 5...Support box 5a, 15b...Support box member 6...Tube support 17...Type steel tail...claw
19...Opening 2G...Hook

Claims (1)

[Claims] A fin tube support device in which a fin tube of an air-cooled heat exchanger is surrounded by a support box consisting of a pair of half-split support box members, wherein one support box member is provided with a claw and the other support box member is provided with an opening. A support device for a fin tube, characterized in that the support box member is integrated with the support box members by inserting the claw into the opening.