Transportation support for heat exchanger in integral cold box

Abstract

The utility model relates to a transportation support for a heat exchanger in an integral cold box, which comprises a cold box support and a fixed support lug on the heat exchanger, and the cold box support consists of cold box frameworks which are vertically arranged and cold box section steel which is erected between the cold box frameworks. An upper steel supporting column, a middle steel supporting column and a lower steel supporting column are arranged on the two opposite pieces of cold box profile steel between the cold box frameworks, one ends of the three steel supporting columns are fixed to the cold box profile steel in a welded mode, channel steel is arranged on the steel supporting columns at the other ends, and the steel supporting columns are fixed to the channel steel in a welded mode. And at least one channel steel is fixedly connected with a fixed support lug on the heat exchanger. The fixing device has the advantages of simple and reasonable structure, stable fixation, convenience in mounting and dismounting and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation brackets, and relates to a transportation bracket for heat exchangers in a fully assembled cold box. Background Art

[0002] In the separation process of the raw material mixed gas of a product, cryogenic separation is a method that must be adopted in all processes. The cold box is one of the main equipment for cryogenic separation. A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. This kind of equipment is widely used and often needs to be transported. However, due to the large overall volume of the equipment, in order to ensure firm fixation during transportation, it is generally fixed after welding first, and then the equipment is disassembled by cutting after reaching the destination. However, this process is rather cumbersome and inconvenient. Therefore, a transportation bracket for heat exchangers in a fully assembled cold box is designed to overcome the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a transportation bracket for heat exchangers in a fully assembled cold box with a simple and reasonable structure, firm fixation, and convenient installation and disassembly.

[0004] The utility model is realized by the following technical solutions: A transportation bracket for heat exchangers in a fully assembled cold box, which includes a cold box bracket and fixing lugs on the heat exchanger. The cold box bracket is composed of a cold box skeleton arranged vertically and cold box steel profiles erected between the cold box skeletons. Three steel columns, namely upper, middle, and lower steel columns, are arranged on two relatively positioned cold box steel profiles between the cold box skeletons. One end of each of the three steel columns is fixed to the cold box steel profile by welding, and channels are arranged on the other ends of the steel columns. The steel columns are fixed to the channels by welding, and at least one channel is connected and fixed to the fixing lug on the heat exchanger.

[0005] Preferably: The three steel columns are respectively an upper steel column, a middle steel column, and a lower steel column. A square tube is arranged on the first channel of the upper steel column through a first rubber gasket. The square tube and the upper fixing lug of the heat exchanger are connected by a first bolt, a first washer, and a stainless steel spacer. The second channel of the middle steel column is closely attached to the heat exchanger through a second rubber gasket. The third channel of the lower steel column is closely attached to the heat exchanger through a third rubber gasket, and is fixed to the lower fixing lug of the heat exchanger by a second bolt.

[0006] Preferably: One end of the square tube is welded and fixed to the first cold box steel profile, and the other end is fixed by three angle steels welded to the second cold box steel profile as a limiting block. A 5-mm gap is left between the limiting block and the square tube.

[0007] Preferably, the square pipe is formed by splicing two fourth channel steels, made of stainless steel, filled with heat insulation material in the cavity to avoid the accumulation of air and moisture, enhance the heat insulation effect, and a stainless steel sealing plate is welded at the end of the square pipe cavity to ensure that the heat insulation material is filled in the section steel cavity.

[0008] Preferably, the second channel steel of the medium steel support column is connected to one end of the medium steel support column by welding, and the other end of the medium steel support column is connected to the third cold box section steel by welding. The surface of the assembled cold box where the third cold box section steel is located is the transportation surface of the assembled cold box.

[0009] Preferably, one end of the lower steel support column is connected to the fourth cold box section steel by welding. The surface of the cold box where the cold box section steel is located is the transportation surface of the assembled cold box. The two ends on the other side are respectively welded and fixed to the fifth cold box section steel and the sixth cold box section steel on both sides. And according to the relative position with the bolt holes in the lower fixing lugs of the heat exchanger, bolt holes are drilled in the factory on the third channel steel. The third channel steel and the fixing lugs are fixed by the second bolts, second washers and nuts to prevent the lower part of the heat exchanger from sliding left and right during transportation.

[0010] The beneficial effects of the present utility model are as follows:

[0011] The transportation support for the heat exchanger in the assembled cold box designed by the present utility model has the advantages of simple and reasonable structure, firm fixation, convenient installation and disassembly, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of the present utility model.

[0013] Figure 2 is Figure 1 the A-A cross-sectional view in

[0014] Figure 3 is Figure 1 the B-B cross-sectional view in

[0015] Figure 4 is Figure 1 the C-C cross-sectional view in

[0016] Figure 5 is Figure 1 the D-D cross-sectional view in

[0017] Figure 6 is Figure 1 the E-E cross-sectional view in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make those of ordinary skill in the art understand the purpose, technical solution and advantages of the present utility model more clearly, the following further elaborates the present utility model with reference to the drawings and embodiments.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0020] The following will introduce the present utility model in detail with reference to the drawings: As Figure 1 shown, a transportation support for the internal heat exchanger of a complete cold box includes a cold box support and fixed lugs on the heat exchanger 1. The cold box support consists of a cold box framework arranged vertically and cold box steel sections erected between the cold box frameworks. Three steel pillars, namely an upper steel pillar, a middle steel pillar, and a lower steel pillar, are arranged on two relatively positioned cold box steel sections between the cold box frameworks. One end of each of the three steel pillars is fixed to the cold box steel section by welding, and a channel steel is provided on the other end of each steel pillar. The steel pillar is fixed to the channel steel by welding, and at least one channel steel is connected and fixed to the fixed lug on the heat exchanger 1.

[0021] As Figures 2-4 shown, the three steel pillars are respectively an upper steel pillar 10, a middle steel pillar 13, and a lower steel pillar 15. A square tube 3 is arranged on the first channel steel 4 on the upper steel pillar 10 through a first rubber gasket 9. The square tube 3 is connected to the upper fixed lug 2 of the heat exchanger 1 through a first bolt 16, a first washer 17, and a stainless steel spacer 18. The second channel steel 5 of the middle steel pillar 13 is closely attached to the heat exchanger 1 through a second rubber gasket 12. The third channel steel 7 of the lower steel pillar 15 is closely attached to the heat exchanger 1 through a third rubber gasket 14 and is fixed to the lower fixed lug 6 of the heat exchanger 1 through a second bolt 19.

[0022] One end of the square tube 3 is welded and fixed to the first cold box steel section 22, and the other end is fixed by three angle steels 11 welded to the second cold box steel section 23 as a limiting block. A 5 - mm gap is left between the limiting block and the square tube 3.

[0023] With the above settings of the present utility model, when the heat exchanger is in a low - temperature operating state, the square tube can have a certain sliding space to reduce stress. The square tube, angle steel, bolts, washers, and stainless steel spacers do not need to be removed after on - site installation and can be used for supporting the heat exchanger during operation.

[0024] The square pipe 3 is formed by splicing two fourth channel steels 8, made of stainless steel, with the cavity filled with heat insulation material to avoid the accumulation of air and moisture and enhance the heat insulation effect. A stainless steel sealing plate is welded at the end of the cavity of the square pipe 3 to ensure that the heat insulation material is filled in the cavity of the section steel. One end of the second channel steel 5 of the medium steel support column is connected to one end of the medium steel support column 13 by welding, and the other end of the medium steel support column 13 is connected to the third cold box section steel 24 by welding. The surface of the assembled cold box where the third cold box section steel 24 is located is the transportation surface of the assembled cold box.

[0025] As Figures 5-6 shown, one end of the lower steel support column 15 is connected to the fourth cold box section steel 27 by welding. The surface of the assembled cold box where the fourth cold box section steel 27 is located is the transportation surface of the assembled cold box. The two ends on the other side are respectively welded and fixed to the fifth cold box section steel 25 and the sixth cold box section steel 26 on both sides. And according to the relative position of the bolt holes in the lower fixing lugs 6 of the heat exchanger 1, bolt holes are drilled in the factory on the third channel steel 7. The third channel steel 7 and the fixing lugs 6 are fixed by the second bolts 19, the second washers 20 and the nuts 21 to prevent the left and right sliding of the lower part of the heat exchanger 1 during transportation.

[0026] For the transportation support of the present utility model, appropriate welding electrodes and welding processes should be selected for installation, and welded by certified welders to ensure the welding quality; all welds should be inspected for appearance and no welding defects should exist; it should meet the requirements of relevant national standards.

[0027] The specific embodiments described herein are only illustrative of the principles and effects of the present utility model and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A transport bracket for a heat exchanger in a packaged cold box, comprising a cold box bracket and a fixed lug on the heat exchanger, wherein the cold box bracket is composed of a vertically arranged cold box frame and cold box steel sections erected between the cold box frames, characterized in that: Three upper, middle and lower steel pillars are arranged on two relatively cold box steel sections between the cold box skeleton. One end of the three steel pillars is fixed to the cold box steel section by welding. Channel steels are arranged on the steel pillars at the other ends. The steel pillars are fixed to the channel steels by welding. At least one channel steel is connected and fixed to the fixed support ear on the heat exchanger.

2. The transport bracket for heat exchanger in a packaged cold box according to claim 1, characterized in that: The three steel pillars are an upper steel pillar, a middle steel pillar, and a lower steel pillar, wherein the first channel steel on the upper steel pillar is arranged with a square tube through a first rubber gasket, the square tube is connected to the upper fixed lug of the heat exchanger through a first bolt, a first washer, and a stainless steel block, the second channel steel of the middle steel pillar is tightly attached to the heat exchanger through a second rubber gasket, the third channel steel of the lower steel pillar is tightly attached to the heat exchanger through a third rubber gasket, and is fixed to the lower fixed lug of the heat exchanger through a second bolt.

3. The transport bracket for the heat exchanger in the packaged cold box according to claim 2, characterized in that: One end of the square tube is welded and fixed to the first cold box steel, and the other end is fixed by three angle steels welded to the second cold box steel as a limit block, with a 5mm gap between the limit block and the square tube.

4. The transport bracket for the heat exchanger in the packaged cold box according to claim 2, characterized in that: The square tube is made of stainless steel and is spliced ​​by two fourth channel steels. The cavity is filled with insulation to avoid the accumulation of air and moisture and increase the insulation effect. A stainless steel sealing plate is welded at the end of the square tube cavity to ensure that the insulation material is filled in the steel cavity.

5. The transport bracket for the heat exchanger in the packaged cold box according to claim 2, characterized in that: The second channel steel of the middle steel support is connected to one end of the middle steel support by welding, and the other end of the middle steel support is connected to the third cold box steel by welding. The assembled cold box surface where the third cold box steel is located is the assembled cold box transportation surface.

6. The transport bracket for the heat exchanger in the packaged cold box according to claim 2, characterized in that: One end of the lower steel support is connected to the fourth cold box steel by welding. The surface of the complete cold box where the cold box steel is located is the transportation surface of the complete cold box. The two ends on the other side are respectively welded and fixed to the fifth cold box steel and the sixth cold box steel on both sides. Bolt holes are drilled in the factory on the third channel steel according to the relative position of the bolt holes in the fixed ears of the lower part of the heat exchanger. The third channel steel is fixed to the fixed ears by second bolts, second washers and nuts to prevent the lower part of the heat exchanger from sliding left and right during transportation.

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