JPS6030538Y2 - Anchor support for low temperature piping - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an anchor support for low temperature piping.

As shown in FIG. 1, the upper support member supporting the low-temperature pipe a is provided with a lower support member d that faces the upper support member through a synthetic resin heat insulating material C, and the lower end thereof is the lower support member d. The stepped part of the service bolt e fixed to the
It is known that the upper support member is clamped in the vertical direction by a nut body f screwed onto the bolt e. Therefore, in order to support large-diameter piping, bolts must be large enough to withstand loads in all directions.

However, as the diameter of the bolt increases, the heat conduction area increases accordingly, impairing the heat insulation effect, and there are disadvantages in that the cost of materials, equipment, etc. rises due to the increase in weight.

The present invention was developed based on the above circumstances, and its purpose is to be able to reliably support low-temperature piping despite the large loads acting in various directions; The object of the present invention is to provide an anchor support for low-temperature piping that has better heat insulation properties than other devices, is lighter in weight, and requires lower material and equipment construction costs.

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In the drawing, an upper support member 2 is arranged at the lower part of the low-temperature pipe 1.

This support member 2 includes a substrate 3, a support plate 4 erected thereon,
4 and reinforcing plates 5, etc., are welded to each other, and the upper end portions of the supporting plates 4, 4 are welded to the piping 1.

The piping 1 and the support member 2 are covered with a suitable heat insulating material (not shown) such as synthetic resin foam.

A plate-shaped lower support member 6 is disposed below the upper support member 2 .

This support member 6 is supported by a support stand or other suitable support means.

A heat insulating material 7 made of a synthetic resin material such as high-density urethane foam is interposed between the upper and lower supporting members 2 and 6.

On the upper support member 2, annular members 8 whose upper ends are welded to the substrate 3 are arranged at intervals in the longitudinal direction of the pipe 1.

In addition, lower end portions of cylindrical bodies 9 are welded to the lower support member 6 in positions facing the annular bodies 8, respectively.

The upper end portions of the cylindrical bodies 9 are fitted into the annular bodies, and their respective tip surfaces are in contact with the lower surface of the substrate 3.

Bolts 10 . . . each lower end portion of which is welded to the lower support member 6 are erected inside the cylindrical body 9 .

It is desirable that the bolts 10 are arranged substantially concentrically with the cylindrical body 9, and each upper end protrudes upwardly through a through hole 11 formed in the substrate 3. Ori,
In addition, the nut body 12... is screwed.

In addition, 13 in the figure is a heat-resistant material, which is formed into a plate shape from, for example, asbestos, and is used to protect the heat insulating material 7 when other supporting means is welded to the lower surface of the lower support member 6. It is set up according to demand.

According to the above configuration, the bolts 10... and the nut bodies 12... counter the tensile loads acting in the vertical direction on both the upper and lower support members 2, 6, and the cylindrical shape resists the compressive loads. The cylindrical body 9... and the annular body 8... oppose the shear load and torsional load.
・is opposed.

In other words, each member will share and counteract the load depending on the direction of the load, but among these, the tensile load is relatively small, and most of the load is supported by the cylindrical body 9... Become.

Therefore, for ease of understanding, we will temporarily omit the bolt 10..., nut body 12..., and annular body 8... and weld the upper end of the cylindrical body 9... to the substrate 3. Let us compare the case of supporting only the body 9 with the conventional device supporting only the bolt and nut body.

Now, if the distance between the upper and lower support members 3 and 6 is 1, and the shear load applied between them 3 and 6 is W, then the relationship between the section modulus 2 and the allowable stress σ is σ = W1/Z. There is.

Therefore, σ=16kp/vrA, W=50
00kg, 1=10 (h+o++ then Z=3125
It becomes oTMt3.

A comparison between a cylindrical body and a solid bolt with almost the same heat insulation coefficient is as shown in the following table.

That is, by using a cylindrical body, the cross-sectional area is approximately 172 mm compared to when using a bolt, so heat loss can be significantly reduced, and the weight is also approximately 172 mm, so
Material costs and equipment construction costs can be reduced.

It should be noted that the present invention is not limited to the above-mentioned embodiments; for example, the structure or shape of the upper and lower support members 3 and 6 may be arbitrary different from the illustrated example.

Further, the annular body 9 and the cylindrical body 9 may have any cross-sectional shape, and may be discontinuous in the circumferential direction.

Further, the bolts 10 may be arranged outside the cylindrical body 9, and the number of the cylindrical bodies 9 and bolts 10 may not be the same.

That is, there may be a place where the annular body 8 and the cylindrical body 9 are only fitted together and the bolt 10 is not provided. Can be combined.

As described above, the present invention includes an annular body whose upper end is fixed to the upper support member, a cylindrical body whose upper end is fitted into the annular body and whose lower end is fixed to the lower support member, and a cylindrical body whose lower end is fixed to the lower support member. The lower part is fixed to the lower support member, and the bolt protrudes upward through the through hole of the upper support member, and has a nut body screwed onto the upper end. , and the cylindrical body supports the compressive load.
Further, loads such as shear loads and torsional loads other than those in the vertical direction can be reliably supported by fitting the cylindrical body and the annular body.

Furthermore, by simply fitting the cylindrical body into the annular body, it is possible to create a part without using bolts.

Therefore, the cross-sectional area and weight can be significantly reduced compared to the case where the load is supported only by solid bolts, the thermal efficiency can be improved, and the cost of materials, equipment, etc. can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional device, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1... Low-temperature piping, 2... Upper support member, 6... Lower support member, 7... Insulation material, End... Annular body , 9... Cylindrical body, 10... Bolt, 1... Through hole, 12... Nut body.

Claims (1)

[Scope of utility model registration request] An annular body having an upper end portion fixed to the upper support member, and an annular body having an upper end portion fixed to the upper support member, and an annular body having an upper end portion fixed to the above upper support member; a cylindrical body that is fitted into the annular body and whose lower end is fixed to the lower support member; An anchor support for low-temperature piping characterized by comprising a bolt with a nut body screwed onto the protruding upper end.