JPH0670801U - Tray mounting bracket for distillation tower - Google Patents

Abstract

(57) [Summary] [Purpose] I would like to confirm the direction of the clamp and prevent it from running around when tightening the fixing nut. [Structure] In the screw portion 4a of the bolt 4 of the clamp 1, parallel surfaces a and b are formed at the tip end side thereof at right angles to the longitudinal direction of the clamp 1, and the lengths of the parallel surfaces a and b are changed. [Effect] By the parallel surfaces a and b, the direction of the clamp 1 and the folded back 2 side can be confirmed, and by fixing the parallel surfaces a and b with a spanner, pliers or the like, the fixing nut 9 can be used for tightening around. It can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting metal fitting (fixing metal fitting) used when mounting rectification trays in multiple stages in a distillation column.

[0002]

[Prior art]

 4 to 5 show conventional mounting fittings.

This mounting bracket has a structure in which a fold back 2 is formed at the tip of a clamp 1, a rear part 3 is extended, and an upward clamp bolt 4 is fixed by welding, and it is projected from a tower side plate 5 in a horizontal direction. The peripheral edge 7a of the tray 7 is placed on the fixing ring 6, and in this state, the clamp 1 is applied to the lower surface of the fixing ring 6, the folded back 2 side is applied to the back surface of the tray 7, and the bolt 4 (screw portion 4a) is attached from the mounting hole 7b. It has a structure in which it is started up and fixed using a washer 8 and a fixing nut 9.

[0004]

[Problems to be solved by the device]

 However, the above conventional example has the following drawbacks.

A. After mounting the tray 7 on the fixing ring 6, the clamp 1 is applied to the back (lower surface) to raise the bolt 4 on the tray 7, and the fixing nut 9 is tightened with the washer 8 interposed therebetween. Since the clamp 1 is hidden behind the fixing ring 6 and the tray 7, the longitudinal direction of the clamp 1 cannot be confirmed. Therefore, the clamp 1 may be attached obliquely as shown in FIG. 6, or the clamp 3 may be fixed without knowing that the rear part 3 is not related to the fixing ring 6.

B. When tightening the fixing nut 9, it is necessary to prevent the bolt 4 (clamp 1) from running around, but without this means, the fixing nut 9 may be difficult to tighten and may not be fully tightened.

An object of the present invention is to eliminate the drawbacks described in ab in the tray mounting metal fittings in the distillation column.

[0008]

[Means for Solving the Problems]

 The structure of the tray mounting bracket according to the present invention is as follows.

On the screw side of the clamp bolt for fixing the peripheral edge of the tray on the fixing ring horizontally projected from the tower side plate, there is a positional relationship between the folding back side in the longitudinal direction of the clamp and the fixing ring side of the clamp. As can be seen, a tray mounting metal fitting in a distillation column, which is characterized in that a parallel surface perpendicular to the longitudinal direction of the clamp is formed and the lengths of the parallel surfaces are made different.

[0010]

[Action]

 Place the peripheral edge of the tray on the fixing ring, put a clamp on the lower surface of the mounting hole on the tray, and make the bolt stand up on the tray. Then, check the direction of the clamp with the parallel surface of the bolt and the folded back side with the length of the parallel surface, and then clamp the parallel nut with a spanner or pliers while tightening the fixing nut. By doing so, it is possible to confirm the direction of the clamp, prevent the clamp from being circulated, and securely fix the tray to the fixing ring.

[0011]

【Example】

 In FIG. 1, 1 is a clamp, 2 is folded back, 3 is rearward, 4 is a bolt, 4a is a threaded portion, a and b are formed on the tip side of the threaded portion 4a in a direction perpendicular to the longitudinal direction of the clamp 1. The parallel planes a and b have a length (height) H on the folded back 2 side a as shown in FIG. 2, which is shorter than the length H'on the rear 3 side b.

Reference numeral 5 is a tower side plate, 6 is a fixing ring, 7 is a tray, 7a is a peripheral edge, 7b is a mounting hole, 8 is a washer, and 9 is a fixing nut.

The clamp 1 checks the longitudinal direction of the clamp 1 with the parallel surfaces a and b, and clamps the fixing nut 9 while sandwiching the parallel surfaces a and b with a spanner, pliers or the like.

[0014]

[Effect of device]

 As described above, the present invention forms the parallel surface on the screw side of the bolt in the direction perpendicular to the longitudinal direction of the clamp, so that the direction of the clamp can be confirmed on this parallel surface. As a result, the clamps will not be attached diagonally and will not be fixed without knowing that the rear is disengaged from the retaining ring.

Next, since the parallel surfaces are provided with different lengths, it is convenient that the folded side can be confirmed.

Next, since the parallel surfaces can be fixed with a spanner, pliers, etc., it is possible to prevent the clamp from being rotated when the fixing nut is tightened. As a result, the fixing nut can be tightened quickly and reliably.

[Brief description of drawings]

FIG. 1 is an explanatory view of a mounting bracket according to the present invention and an example of its use.

FIG. 2 is an explanatory view of a parallel surface formed on a screw portion of a clamp bolt.

FIG. 3 is a plan view of a parallel surface formed on the screw portion.

FIG. 4 is an explanatory view of a conventional mounting bracket and a mounting example.

FIG. 5 is a sectional view taken along line AA ′.

FIG. 6 is an explanatory view of an example in which a conventional mounting bracket is obliquely attached.

[Explanation of symbols]

 1 Clamp 2 Fold back 3 Rear 4 Bolt 4a Screw part a, b Parallel surface 5 Tower side plate 6 Fixing ring 7 Tray 7a Edge 7b Mounting hole 8 Washer 9 Fixing nut

Claims (1)

[Scope of utility model registration request] 1. A positional relationship between a screw side of a clamp bolt for fixing a peripheral edge of a tray on a fixing ring horizontally projected from a tower side plate, a folding back side in a longitudinal direction of the clamp, and a fixing ring side of the clamp. As you can see
A tray mounting metal fitting in a distillation column, characterized in that a parallel surface perpendicular to the longitudinal direction of the clamp is formed and the lengths of the parallel surfaces are different.