CN111196508A - A device that is used for empty cold box facial make-up pearl sand usefulness that divides - Google Patents

Abstract

A device for filling pearlescent sand on an air separation cold box, the device comprises a connecting pipe, a flange, a washer, a handle, a flange cover, a nut and a bolt. A platform will be set at the pouring inlet at the upper end of the device, which is convenient for installation and sand pouring overhaul operations, and the lower end is connected to the surface of the air separation and cold storage box with a pipe. The device and the cold box plate are provided with an upwardly inclined nozzle. The nozzle and the air separation cold box wall form an included angle of 60°. A flange and a flange cover are arranged at the entrance of the nozzle, and a sealing gasket is arranged in the middle for sealing. The flange cover is connected with the handle, which is convenient to open and install. The invention ensures the safety of the air separation cold box, and the design of the flange cover and the angle of the connecting pipe make the pearl sand filling operation of the air separation equipment smoother and smoother.

Description

A device for filling pearlescent sand on air separation cold box

technical field

The invention relates to a device for filling pearlescent sand on an air separation cold box, and belongs to the field of air separation equipment.

Background technique

With the progress of science and technology in my country, the development of large-scale, low energy consumption, high automation and modularization of air separation plants is the future trend, and the scale of single air separation plants will become larger and larger. Expanded perlite for ultra-low temperature and super-strength engineering (also known as expanded perlite for low-temperature equipment, commonly known as pearl sand) has the characteristics of small capacity, low thermal conductivity, good ultra-low temperature thermal insulation performance, good chemical stability, non-flammable, non-toxic, odorless, sound absorption and other characteristics . As a cold insulation material, it is widely used in air separation plants.

With the large-scale air separation equipment, the air separation cold box will be enlarged and raised, and some are as high as more than 60 meters. The capacity of the pearlescent sand filled in the cold box increases accordingly, and the accident of loading and unloading the pearlescent sand in the cold box occurs from time to time. At present, the usual on-site filling method of pearlescent sand is to directly fill vertically downward from the manhole cover at the top of the cold box, which will lead to the poor fluidity of the pearlescent sand and the sudden drop of a large amount of pearlescent sand, which will crush the instrument tube or cable. , and even process piping, causing unnecessary sand scouring. Therefore, it is urgent to design a device for filling pearlescent sand for air separation cold box.

SUMMARY OF THE INVENTION

The main technical problem to be solved by the present invention is to provide a device for filling pearlescent sand for an air separation cold box, which has a reasonable structure, can realize effective control of the flow rate and flow rate of sand filling, overcomes the above-mentioned deficiencies in the prior art, and protects the air The cooling box equipment is safe, and at the same time, the pearl sand filling operation of the air separation equipment is smoother and smoother, and the work efficiency is improved.

In order to achieve the above purpose, the present invention provides the following technical solutions: a device for filling pearlescent sand on an air separation cold box, characterized in that the upper end of the device is provided with a pouring port, and a layer of the pouring port is provided on the The platform is easy to install and carry out sand pouring and maintenance operations. The lower end is connected to the surface of the air separation cold box with a pipe. The device and the cold box plate are provided with an upwardly inclined pipe, and the pipe forms an angle of 60° with the wall of the air separation cold box. , and a flange and a flange cover are provided at the entrance of the take-over to seal, a sealing gasket is also provided between the flange and the flange cover, and at least one handle is also provided on the flange cover, and the flange is connected to the flange. The flange cover is connected with nuts and bolts, which is convenient for disassembly and assembly.

As a preference: the handle adopts a semi-circular arc design, which can avoid personal injury.

Preferably, the flange cover is connected and fixed with the handle by welding.

Preferably, the sealing gasket is made of asbestos rubber sheet.

The nozzle, flange, flange cover and handle are all made of carbon steel.

The beneficial effect of adopting the above technical solutions is that: after the device for filling pearlescent sand for the air separation cold box is constructed, the sand filling operation can be carried out by the smooth sand pouring port of the present invention first when the air separation device performs the sand filling and maintenance operation, Gradually filling from the bottom to the top of the cold box to achieve layered sand loading, because the pearlescent sand in this operation has a slow flow rate, it can fully meet the safety requirements of the safety supervision and management department and ensure safe production. The design of the flange cover and the angle of the nozzle make the filling operation of the air separation plant smoother and smoother.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a schematic diagram of the direction A of FIG. 1 .

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings: As shown in Figures 1-2, a device for filling pearlescent sand on an air separation cold box is characterized in that the upper end of the device is provided with a pouring port , the pouring port is provided with a layer of platform, which is convenient for installation and sand pouring maintenance operations. The lower end is connected to the surface of the air separation and cold storage box with a connecting pipe 1. The device and the cold box plate are provided with an upwardly inclined connecting pipe 1, and the connecting pipe 1 is connected to The wall of the air separation cold box is at an angle of 60°, and a flange 2 and a flange cover 5 are provided at the entrance of the connecting pipe 1 to seal, and a sealing gasket 3 is also provided between the flange 2 and the flange cover 5, so the The flange cover 5 is also provided with at least one handle 4, the flange 2 and the flange cover 5 are connected with nuts 6 and bolts 7, which is convenient for disassembly and assembly, and the handle 4 adopts a semi-circular arc design, which can avoid personnel Damage, the flange cover 5 is connected and fixed with the handle 4 by welding, and the sealing gasket 3 is made of asbestos rubber sheet.

The device for filling pearlescent sand for the air separation cold box includes a connecting pipe 1, a flange 2, a sealing washer 3, a handle 4, a flange cover 5, a nut 6 and a bolt 7. The pouring port at the upper end of the device is provided with a platform, which is convenient for For installation and sand pouring maintenance operations, the lower end is connected to the surface of the air separation and cold insulation box with a connecting pipe 1. The device and the cold box plate are provided with an upwardly inclined connecting pipe 1. The connecting pipe 1 and the air separation cold box wall are at an included angle of 60°. A flange 2 and a flange cover 5 are arranged at the entrance of the connecting pipe, and a sealing gasket 3 is arranged in the middle. For sealing, the flange cover 5 is connected with the handle 4, and the flange 2 and the flange cover 5 are connected with nuts 6 and bolts 7, which are convenient for disassembly and assembly.

The nozzle 1 of the modified device forms an included angle of 60° with the wall of the air separation cold box, which makes the sand loading operation of the air separation plant smoother and smoother. The nozzle 1, flange 2, flange cover 5 and handle 4 are all made of carbon steel. The nozzle 1 is connected to the flange 2 by welding, and the flange cover 5 is connected to the handle 4 by welding. The sealing gaskets 3 are all made of asbestos rubber sheets, so that the inside and outside of the cold box play a sealing role. The flange 2 cover is connected with the handle 4, and the handle adopts a circular arc shape, which can avoid personal injury and improve work efficiency.

After the device for filling pearlescent sand for the air separation cold box is constructed, the sand filling operation can be carried out in the air separation device, and the sand filling operation can be carried out through the smooth sand pouring inlet of the present invention, and the sand filling operation can be carried out from the bottom to the top of the cold box. Top loading to achieve layered sand loading. Because the pearlescent sand in this operation has a slow flow rate, it can fully meet the safety requirements of the safety supervision and management department and ensure safe production. The design of the flange cover and the angle of the nozzle make the filling operation of the air separation plant smoother and smoother.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the present invention. protected range.

Claims (5)

1. The utility model provides a device that is used for empty cold box facial make-up to fill in pearly-lustre sand usefulness, its characterized in that the device's upper end is equipped with the mouth of falling, sets up the one deck platform on should falling the mouth, is convenient for install and falls husky maintenance operation, and the lower extreme is connected empty cold insulation box surface of dividing with the takeover, the device is setting up tilt up's takeover with the cold box board, and this takeover is 60 contained angles with empty cold box wall of dividing to it is sealed with the blind flange to establish again in the entrance of takeover, still be equipped with seal ring in the middle of flange and the blind flange, still be equipped with at least one handle on the blind flange, the flange is connected with blind flange with nut and bolt, makes things.

2. An apparatus as claimed in claim 1, wherein said handle is of semi-circular arc design to avoid injury to personnel.

3. An apparatus for loading air separation cold box with pearlife according to claim 1, wherein said flange cover is fixedly connected to the handle by welding.

4. An apparatus for loading an air separation cold box with pearlife according to claim 1 and characterized in that said sealing gasket is made of asbestos-rubber sheet.

5. An apparatus for loading a cold box for air separation with pearlife according to claim 1, wherein said adapter, flange cover and handle are made of carbon steel.

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