A roller type molecular sieve support structure

Abstract

A roller type molecular sieve support structure comprises a support structure body, which is installed at the lower part of a molecular sieve saddle. The body consists of a bottom plate, a fixed frame, a polytetrafluoro pad and a steel roller. The bottom plate is fixed on a foundation or a steel structure, and two symmetrically arranged fixed frames are welded on the top, and polytetrafluoro pads are respectively installed on the inner sides of the fixed frames. A restricted space for placing steel rollers is formed between the fixed frames and polytetrafluoro pads arranged symmetrically on both sides. The steel rollers are arranged in rows in the restricted space and roll back and forth. The utility model aims to provide a one-way rolling molecular sieve support structure, which effectively reduces the pipe mouth load of the molecular sieve, thereby simplifying the piping form and reducing engineering costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of air separation equipment and relates to a roller type molecular sieve supporting structure. Background Art

[0002] Molecular sieve is an indispensable equipment in air separation system. Two molecular sieve adsorbers are switched for use. When one is working, the other is regenerated. The switch is automatic and the operation cycle is short. The traditional molecular sieve support structure is generally fixed and has a limited range of movement. Under this feature, the process pipeline connected to it often needs to design more flexible measures to reduce the molecular sieve nozzle load, making the process pipeline more complicated. At the same time, the complex process pipeline also increases the footprint of the structural platform, thereby increasing the land area and increasing the economic cost of the entire air separation system.

[0003] The use of a roller-type molecular sieve support structure, with its rollable design, flexible adjustable design, and convenient and simple installation, can provide a very suitable solution to the above problems. Summary of the invention

[0004] The utility model aims to overcome the shortcomings of the prior art and provides a roller type molecular sieve support structure which reduces the molecular sieve pipe mouth load and simplifies the process pipeline at the molecular sieve.

[0005] The utility model aims to solve the above-mentioned technical problems mainly through the following technical solutions: a roller-type molecular sieve support structure, which includes a support structure body, which is installed at the lower part of the molecular sieve saddle, and the body consists of a bottom plate, a fixed frame, a polytetrafluoro pad, and a steel roller. The bottom plate is fixed on a foundation or a steel structure, and two symmetrically arranged fixed frames on the left and right are welded above it. Polytetrafluoro pads are respectively installed on the inner sides of the fixed frames, and a restricted space for placing steel rollers is formed between the fixed frames and the polytetrafluoro pads arranged on both sides symmetrically, and the steel rollers are arranged in rows in the restricted space and roll back and forth.

[0006] Preferably, the base plate is replaced by a pre-buried base plate or a steel structure, or can be used alone.

[0007] Preferably, water guide grooves are provided on both sides of the steel roller at the bottom of the fixed frame and the PTFE pad, and the distance between the side of the water guide groove and the inner side of the fixed frame is not less than the distance from the center of the steel roller near the side of the fixed frame to the inner side of the fixed frame.

[0008] Preferably, the height of the water guide grooves of the fixed frame and the polytetrafluoroethylene pad is not greater than the radius of the steel roller, and is not less than 5 mm and not greater than 10 mm, and the height of the water guide grooves of the fixed frame and the polytetrafluoroethylene pad is the same.

[0009] Preferably, the height of the fixing frame and the polytetrafluoroethylene pad is at least two-thirds of the height of the steel roller, and the height of the polytetrafluoroethylene pad is higher than the fixing frame and lower than the steel roller.

[0010] Preferably, the bottom plate, the fixing frame and the steel roller are made of stainless steel.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model greatly reduces the load on the pipe orifice connected to the molecular sieve, simplifies the process pipeline design of this part, avoids the increase of structural platforms and steel structures due to the complex process pipeline design, and provides a rollable molecular sieve support structure, through which the pipeline design and structural design of the air separation molecular sieve area can be optimized, thereby achieving the purpose of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the installation diagram of the utility model.

[0014] Figure 2 It is an enlarged view of point A of the present utility model.

[0015] Figure 3 It is a structural schematic diagram of the water guide trough on the fixed frame in the utility model. DETAILED DESCRIPTION

[0016] In order to make the technical features and functional purposes achieved by the utility model easier to understand, they are further explained below with reference to specific illustrations.

[0017] like Figure 1-2 As shown, a roller type molecular sieve support structure includes a support structure body, which is installed at the lower part of the molecular sieve saddle 6. The body consists of a base plate 1, a fixed frame 2, a polytetrafluoro pad 3, and a steel roller 4. The base plate 1 is fixed on a foundation or a steel structure, and two symmetrically arranged fixed frames 2 are welded on the upper side thereof. Polytetrafluoro pads 3 are respectively installed on the inner sides of the fixed frames 2. A restricted space for placing the steel roller is formed between the fixed frames 2 and the polytetrafluoro pads 3 arranged symmetrically on both sides. The steel rollers 4 are arranged in a row in the restricted space and roll back and forth.

[0018] The support structure of the utility model is installed at the lower part of the molecular sieve saddle, the bottom plate of the support structure is fixed on the foundation or steel structure, and two left and right fixed frames are welded at the other end. The polytetrafluoroethylene pad is also divided into two and is respectively placed in the fixed frame to form a restricted area. The steel rollers are arranged in a row in the restricted area formed by the fixed frame and the polytetrafluoroethylene pad and can roll. The molecular sieve saddle is placed on the upper part thereof, and can naturally compensate for the small thermal displacement caused by thermal expansion and contraction during operation by moving forward and backward.

[0019] The base plate 1 can be replaced by a pre-buried base plate or a steel structure, or can be used alone.

[0020] like Figure 3 As shown, water guide grooves 5 are provided on both sides of the steel roller 4 at the bottom of the fixed frame and the PTFE pad, and the distance between the side of the water guide groove 5 and the inner side of the fixed frame 2 is not less than the distance from the center of the steel roller 4 close to the side of the fixed frame 2 to the inner side of the fixed frame 2.

[0021] The number of steel rollers in each roller-type molecular sieve support structure of the utility model is 6, and the length can be adjusted according to the width of the molecular sieve saddle. The length of the entire roller-type molecular sieve support structure is not greater than the width of the molecular sieve saddle.

[0022] The height of the water guide groove 5 of the fixed frame 2 and the polytetrafluoroethylene pad 3 is not greater than the radius of the steel roller 4, and is not less than 5 mm and not greater than 10 mm. The height of the water guide groove 5 of the fixed frame 2 and the polytetrafluoroethylene pad 3 is the same.

[0023] The fixed frame and the base of the utility model are fully welded except for the position of the water guide groove. After the fixed frame meets the limit size of the internal steel roller, the welding length of the fixed frame and the base needs to be calculated and analyzed to ensure that in actual operation, if the steel roller contacts the fixed frame, the force generated by the movement of the molecular sieve is transmitted to the fixed frame without damaging the fixed frame. The bottom plate 1, the fixed frame 2, and the steel roller 4 are made of stainless steel.

[0024] The roller-type molecular sieve support structure is not limited to single use. It can be added in groups according to the length of the molecular sieve saddle to meet the support stability of the molecular sieve device. The number of steel rollers in each roller-type molecular sieve support structure can also be increased according to actual conditions. In order to ensure that the molecular sieve device can stably move in a small amount during the thermal displacement caused by thermal expansion and contraction and prevent jamming, gaps must be left between steel rollers and between steel rollers and PTFE pads.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A roller type molecular sieve support structure, which includes a support structure body, which is installed at the bottom of the molecular sieve saddle, and the body consists of a bottom plate, a fixing frame, a polytetrafluoroethylene pad, and a steel roller, characterized in that: The base plate is fixed on a foundation or a steel structure, and two symmetrically arranged fixed frames are welded on the top. Teflon pads are installed on the inner sides of the fixed frames respectively. A restricted space for placing steel rollers is formed between the symmetrically arranged fixed frames and Teflon pads. The steel rollers are arranged in rows in the restricted space and roll back and forth.

2. The roller type molecular sieve support structure according to claim 1, characterized in that: The bottom plate can be replaced by a foundation pre-buried bottom plate or a steel structure, or can be used alone.

3. The roller type molecular sieve support structure according to claim 1, characterized in that: Water guide grooves are provided on both sides of the steel roller at the bottom of the fixed frame and the PTFE pad, and the distance between the side of the water guide groove and the inner side of the fixed frame is not less than the distance from the center of the steel roller near the side of the fixed frame to the inner side of the fixed frame.

4. The roller type molecular sieve support structure according to claim 3, characterized in that: The height of the water guide groove of the fixed frame and the polytetrafluoroethylene pad is not greater than the radius of the steel roller, and is not less than 5mm and not greater than 10mm. The height of the water guide groove of the fixed frame and the polytetrafluoroethylene pad is the same.

5. The roller type molecular sieve support structure according to claim 3, characterized in that: The height of the fixing frame and the polytetrafluoroethylene pad is at least two-thirds of the height of the steel roller, and the height of the polytetrafluoroethylene pad is higher than the fixing frame and lower than the steel roller.

6. The roller type molecular sieve support structure according to claim 1, characterized in that: The bottom plate, the fixing frame and the steel roller are made of stainless steel.

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