Molecular sieve electric heat tracing system

Abstract

The utility model relates to the technical field of rectification oxygen production, in particular to a molecular sieve electric heat tracing system. According to the technical scheme, the device comprises a support, a first connecting plate, a pipeline, a semicircular block, a nut and a bolt and is characterized in that a groove is formed in the front end of the support, rotating rods are rotationally connected to the front ends and the rear ends of the two sides of the inner wall of the groove correspondingly, the rotating rods are fixed to the first connecting plate, the semicircular block is fixed to the upper surface of the first connecting plate, and a semicircular groove is formed in one side of the semicircular block; an electric tracing band is installed on the inner wall of the semicircular groove, one side of the pipeline penetrates through the semicircular groove, the semicircular block is connected with the pipeline in a sleeving mode, and a second connecting plate is fixed to the upper surface of the semicircular block. The molecular sieve heating device has the advantages that the pipeline can be conveniently heated, the heating device can be conveniently mounted and dismounted, and the molecular sieve can be conveniently purified.

Description

Technical Field

[0001] The utility model relates to the technical field of rectification oxygen production, in particular to a molecular sieve electric heating system. Background Art

[0002] In the full low-pressure distillation oxygen production air separation process, the molecular sieve purification system is a very important process. The air leaving the air cooling tower enters the alternating molecular sieve adsorber, where the moisture, CO2 and C2H2 impurities in the raw air are adsorbed by the molecular sieve.

[0003] The molecular sieve purifier workflow is divided into five stages: pressure relief, heating, cold blowing, boosting, and parallel connection. The operation of each working stage is switched through the corresponding pneumatic butterfly valve control. The action of the pneumatic butterfly valve is completed through its pneumatic action. In winter, due to the low ambient temperature, the valve often gets stuck. Whenever the valve fails, it will affect the operation of each stage of the purifier and cause the entire purification stage to time out, causing the purifier to regenerate incompletely and affect the normal operation of the purifier. Even the valve stuck and malfunctioned, causing the air separation to stop. Utility Model Content

[0004] The utility model aims to provide a molecular sieve electric heating system, which has the advantages of being easy to heat the pipeline, easy to install and disassemble the heating device, and convenient for purifying the molecular sieve, and solves the problem of valve movement being often stuck due to the low ambient temperature in winter, affecting the purification of the molecular sieve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a molecular sieve electric heating system, comprising a bracket, a connecting plate 1, a pipeline, a semicircular block, nuts and bolts, a groove is provided at the front end of the bracket, and the front and rear ends of the inner wall of the groove are respectively rotatably connected to rotating rods, and the rotating rods are fixed to the connecting plate 1, and a semicircular block is fixed to the upper surface of the connecting plate 1, a semicircular groove is provided on one side of the semicircular block, and an electric heating tape is installed on the inner wall of the semicircular groove, one side of the pipeline passes through the semicircular groove, the semicircular block is sleeved with the pipeline, and a connecting plate 2 is fixed to the upper surface of the semicircular block.

[0006] Preferably, a valve is installed on the upper surface of the pipeline, and the opening and closing of the pipeline can be controlled by the valve.

[0007] Preferably, a control switch box is fixed to one side of the bracket, and a display screen and buttons are sequentially embedded and installed on one side of the control switch box from top to bottom. The start and stop of the electric heating belt can be controlled by the control switch box.

[0008] Preferably, a threaded hole is provided at the front end of the second connecting plate, and the front end of the bolt passes through the threaded hole and is threadedly connected, and the front end of the bolt passes through the nut and is threadedly connected. The bolt passes through the threaded hole, so that the two semicircular blocks can be connected and limited, which is convenient for installation and disassembly.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The utility model rotates and connects rotating rods at the front and rear ends on both sides of the inner wall of the groove respectively, the rotating rod is fixed to a connecting plate, a semicircular block is fixed on the upper surface of the connecting plate, a semicircular groove is opened on one side of the semicircular block, an electric heating tape is installed on the inner wall of the semicircular groove, one side of the pipeline passes through the semicircular groove, the semicircular block is sleeved with the pipeline, and a connecting plate 2 is fixed on the upper surface of the semicircular block. When it is necessary to heat the pipeline, one side of the pipeline passes through the semicircular groove, and then the bolt passes through the threaded hole and is threadedly connected, and the electric heating tape is started, so that the pipeline can be heated, thereby facilitating the heating of the pipeline, facilitating the installation and disassembly of the heating device, and facilitating the purification of the molecular sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the bracket of the utility model;

[0013] Figure 3 This is a schematic diagram of the main structure of the connecting plate of the utility model;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of a semicircular block of the utility model;

[0015] Figure 5 This is a schematic diagram of the main structure of the pipeline of the utility model.

[0016] In the figure: 1. bracket; 2. groove; 3. connecting plate 1; 4. pipe; 5. valve; 6. connecting plate 2; 7. semicircular block; 8. control switch box; 9. rotating rod; 10. electric heating tape; 11. semicircular groove; 12. nut; 13. threaded hole; 14. bolt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 5 The utility model provides an embodiment: a molecular sieve electric heating system, including a bracket 1, a connecting plate 3, a pipe 4, a semicircular block 7, a nut 12 and a bolt 14. A groove 2 is provided at the front end of the bracket 1, and a control switch box 8 is fixed to one side of the bracket 1. A display screen and buttons are sequentially installed on one side of the control switch box 8 from top to bottom. The start and stop of the electric heating belt 10 can be controlled by the control switch box 8. As is well known to those skilled in the art, the provision of the control switch box 8 is commonplace, and it belongs to conventional means or common knowledge, and will not be described here. Those skilled in the art can make any selection according to their needs or convenience. The front and rear ends of the inner wall of the groove 2 are rotatably connected to the rotating rod 9, and the rotating rod 9 is fixed to the connecting plate 3.

[0019] A semicircular block 7 is fixed on the upper surface of the connecting plate 3, and a semicircular groove 11 is provided on one side of the semicircular block 7. An electric heating tape 10 is installed on the inner wall of the semicircular groove 11. The semicircular groove 11 passes through one side of the pipeline 4. The semicircular groove 11 facilitates the installation of the electric heating tape 10, and the device is conveniently installed on the pipeline 4. The electric heating tape 10 can heat the pipeline 4 to prevent the valve 5 installed on the pipeline 4 from being stuck due to the low ambient temperature in winter, which affects the purification of the molecular sieve. As is well known to those skilled in the art, the provision of the electric heating tape 10 is commonplace, which belongs to conventional means or common knowledge, and will not be repeated here. Those skilled in the art can make any selection according to their needs or convenience. The semicircular block 7 is sleeved with the pipeline 4, and a valve 5 is installed on the upper surface of the pipeline 4. The valve 5 can control the conduction and closing of the pipeline 4.

[0020] A connecting plate 2 6 is fixed on the upper surface of the semicircular block 7, and a threaded hole 13 is opened at the front end of the connecting plate 2 6. The front end of the bolt 14 passes through the threaded hole 13 and is threadedly connected. The front end of the bolt 14 passes through the nut 12 and is threadedly connected. The bolt 14 passes through the threaded hole 13, so that the two semicircular blocks 7 can be connected and limited, which is convenient for installation and disassembly.

[0021] When it is necessary to heat the pipeline 4, the pipeline 4 is passed through the semicircular groove 11 provided in the semicircular block 7, and the front end of the bolt 14 is passed through the threaded hole 13 and threadedly connected, and the front end of the bolt 14 is passed through the nut 12, and the control switch box 8 is operated to start the electric heating belt 10, which can heat the pipeline 4 to prevent the valve 5 installed on the pipeline 4 from being stuck, so that the molecular sieve adsorber can absorb moisture and other impurities in the raw air. The pipeline 4 is easily heated, and the heating device is easy to install and disassemble, and the molecular sieve is easy to purify.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A molecular sieve electric heating system, comprising a bracket (1), a connecting plate (3), a pipe (4), a semicircular block (7), a nut (12) and a bolt (14), characterized in that: The front end of the bracket (1) is provided with a groove (2), and the inner walls of the groove (2) are rotatably connected to rotating rods (9) at both ends, and the rotating rod (9) is fixed to the first connecting plate (3). A semicircular block (7) is fixed to the upper surface of the first connecting plate (3). A semicircular groove (11) is provided on one side of the semicircular block (7), and an electric heating belt (10) is installed on the inner wall of the semicircular groove (11). One side of the pipeline (4) passes through the semicircular groove (11), and the semicircular block (7) is sleeved with the pipeline (4). A second connecting plate (6) is fixed to the upper surface of the semicircular block (7).

2. A molecular sieve electric heating system according to claim 1, characterized in that: A valve (5) is installed on the upper surface of the pipeline (4).

3. A molecular sieve electric heating system according to claim 1, characterized in that: A control switch box (8) is fixed to one side of the bracket (1), and a display screen and buttons are sequentially embedded and installed on one side of the control switch box (8) from top to bottom.

4. A molecular sieve electric heating system according to claim 1, characterized in that: The front end of the second connecting plate (6) is provided with a threaded hole (13), the front end of the bolt (14) passes through the threaded hole (13) and is threadedly connected, and the front end of the bolt (14) passes through the nut (12) and is threadedly connected.

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