Waste gas pipeline support structure of acrylic acid process wastewater pool

Abstract

The utility model relates to a waste gas pipeline support structure of an acrylic acid process waste water pool, and belongs to the technical field of acrylic acid processes. According to the waste gas pipeline supporting structure, the supporting foundation is installed at the top of the acrylic acid process waste water pool so as to construct the waste gas pipeline supporting structure, fixing and supporting of the waste gas pipeline are achieved through construction of the frame, the work passing requirement of technicians is met, work can be conveniently conducted within the short-distance range of the waste gas pipeline, and meanwhile the waste gas pipeline can be conveniently and rapidly supported. The sliding assembly is arranged, so that the air suction cover can be quickly disassembled and replaced on the basis of not interfering a waste gas pipeline; in addition, the safety of the whole facility is ensured by arranging the crawling ladder, the handrail and the like.

Description

Technical Field

[0001] The utility model relates to a waste gas pipeline support structure of an acrylic acid process wastewater pool, belonging to the technical field of acrylic acid process. Background Art

[0002] Acrylic acid is an unsaturated carboxylic acid. Pure acrylic acid is a colorless, clear liquid with a special pungent odor. It is miscible with water, ethanol, ether and chloroform. Acrylic acid is widely used in coatings, adhesives, solid resins and plastics, and is a very important chemical product. The propylene oxidation method for producing acrylic acid is one of the more mature acrylic acid production processes. The commonly used facility in the acrylic acid production process is the acrylic acid oxidation process wastewater pool, which will produce waste gas. The waste gas generally contains air, carbon monoxide, acrolein, propylene and other gases and needs to be discharged through the waste gas pipe at the top.

[0003] Since the exhaust pipe has a large diameter and mass and is a vertical pipe, it generally needs to be supported by a bracket. However, the existing brackets installed on the exhaust pipe of the wastewater pool have the following problems:

[0004] 1. The top of the wastewater pool is generally connected to the exhaust pipe through a suction hood. However, since the exhaust pipe is a vertical pipe, the suction hood is sandwiched between the exhaust pipe and the wastewater pool. It is difficult to open or move the suction hood during inspection and maintenance, resulting in inconvenience in maintenance and replacement. Failure to inspect or replace the suction hood for a long time may cause corrosion of the suction hood;

[0005] 2. Since there are no protective measures for the main valve of the waste gas pipeline of the wastewater pool, some technicians may mistakenly operate the valve of the waste gas pipeline and close it during the on-site inspection, resulting in the following impacts and risks: Due to the closure of the valve, the waste gas in the wastewater pool cannot be collected, and its escape has a potential impact on the on-site environment and personnel health. Under the action of the downstream induced draft fan, the vacuum (negative pressure) in the subsequent pipeline of the closed valve will gradually increase (at this time, the pressure transmitter will issue a low pressure alarm model. If it is still not handled in time, the vacuum in the pipeline will continue to rise), which may cause damage to the pipeline. In addition, the closure of the valve will cause the fan to have a reduced operating efficiency, malfunction, and may even burn the motor, and there is a risk of causing personal injury to other unrelated personnel around. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a waste gas pipe support structure of an acrylic acid process wastewater pool, the top of the acrylic acid process wastewater pool is connected to the waste gas pipe through an air suction hood, and the waste gas pipe support structure includes:

[0007] A supporting foundation is erected on the top of the acrylic acid process wastewater pool, the supporting foundation includes a frame, a supporting column connecting the frame and the top of the wastewater pool, the frame includes two parallel main beams, a secondary beam located between the two main beams, the secondary beam is formed by connecting two H-shaped steels, the area surrounded by the two H-shaped steels forms a pipeline opening, the exhaust gas pipeline passes through the pipeline opening, and the exhaust gas pipeline has two ears erected on the main beams on both sides;

[0008] A sliding assembly, the sliding assembly being arranged on the main beam, the sliding assembly being connected to the air suction hood via a suspension rod; and

[0009] A ladder connects the ground foundation to the framework of the supporting foundation.

[0010] It should be understood that since the frame is connected to the top of the wastewater pool through supporting columns, and the height of the ground foundation is almost the same as that of the top of the wastewater pool, the height of the frame is greater than the height of the ground foundation, so the ladder is an upwardly inclined ladder.

[0011] Furthermore, the frame is provided with pedals at both sides of the pipe opening, and the pedals are connected to the ladder. The pedals are steel plates with star-shaped patterns on the surface. The pedals can be used for technicians to stand on the plane where the frame is located, and the star-shaped patterns can ensure that the technicians' feet are stable and non-slip when operating.

[0012] Furthermore, the main beam has a track, and the sliding assembly includes a monorail pulley installed on the track and thrust stops arranged on both sides of the track; the monorail pulley is connected to the air suction hood via a hanger; the monorail pulley is allowed to drive the air suction hood to move along the main beam for replacement and maintenance; since the monorail pulley connected to the hanger is located at the main beam, the exhaust gas duct will not be interfered with during the movement of the air suction hood; and a thrust stop is provided to limit the stroke of the air suction hood to avoid collision with other columns.

[0013] Furthermore, railings are provided on the edges of the ladder and the frame to prevent personnel from falling during climbing and inspection operations.

[0014] Furthermore, a fence gate is provided at the entrance of the ladder, and a metal warning sign is installed on the fence gate to prevent other irrelevant personnel from contacting the main valve and causing the risk of misoperation.

[0015] Furthermore, the air suction hood is connected to the exhaust pipe via a detachable flange, which is convenient for disassembly and assembly.

[0016] Beneficial effects of the utility model:

[0017] The utility model constructs a supporting structure for the exhaust gas pipe by installing a supporting foundation on the top of the acrylic acid process wastewater pool, wherein the construction of the frame not only achieves the fixation and support of the exhaust gas pipe, but also meets the work passage needs of technical personnel, and can facilitate work within the close range of the exhaust gas pipe. At the same time, a sliding component is provided to facilitate the rapid disassembly and replacement of the suction hood without interfering with the exhaust gas pipe; in addition, the settings of ladders, railings, etc. ensure the safety of the overall facility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an implementation method of the utility model;

[0019] Figure 2 This is a schematic diagram of the lateral structure of a sliding assembly in one embodiment of the utility model;

[0020] In the figure: 1. Ground foundation; 2. Support column; 3. Main beam; 4. Secondary beam; 5. Pedal; 6. Handrail; 7. Ladder; 8. Hanging rod; 9. Fence gate; 10. Metal warning sign; 11. Monorail pulley; 12. Thruster; 13. Air hood; 14. Support ear; 15. Steel bracket of air hood; 16. Flange; 17. Exhaust pipe; 18. Main valve; 19. Instrument. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1-Figure 2 As shown, the utility model provides a waste gas pipe support structure of an acrylic acid process wastewater pool, the top of the acrylic acid process wastewater pool is connected to the waste gas pipe 17 through an air suction hood 13, and the waste gas pipe support structure includes:

[0026] A supporting foundation is erected on the top of the acrylic acid process wastewater pool, the supporting foundation includes a frame, a supporting column 2 connecting the frame and the top of the wastewater pool, the frame includes two parallel main beams 3, and a secondary beam 4 located between the two main beams 3, the secondary beam 4 is composed of two H-shaped steels connected, and the area surrounded by the two H-shaped steels forms a pipeline opening, the exhaust gas pipeline 17 passes through the pipeline opening, and the exhaust gas pipeline 17 has two ears 14 erected on the main beam 3 on both sides;

[0027] A sliding assembly, the sliding assembly is arranged on the main beam 3, and the sliding assembly is connected to the air suction hood 13 through a suspension rod 8 and an air suction hood steel bracket 15; and

[0028] A ladder 7 connects the ground foundation 1 and the frame of the supporting foundation.

[0029] Since the frame is connected to the top of the wastewater pool through the support column 2, and the height of the ground foundation 1 is almost the same as that of the top of the wastewater pool, the height of the frame is greater than the height of the ground foundation 1, so the ladder 7 is an upwardly inclined ladder 7.

[0030] Furthermore, the frame is provided with pedals 5 at both sides of the pipe opening, and the pedals 5 are connected to the ladder. The pedals 5 are steel plates with star-shaped patterns on the surface. The pedals can be used for technicians to stand after climbing onto the plane where the frame is located, and the star-shaped patterns can ensure that the technicians' feet are stable and non-slip when operating.

[0031] Furthermore, the main beam 3 has a track, and the sliding assembly includes a monorail pulley 11 installed on the track and thrust stops 12 arranged on both sides of the track. The monorail pulley 11 is connected to the air suction hood 13 through the hanger 8; the monorail pulley 11 is allowed to drive the air suction hood 13 to move along the main beam 3 for replacement and maintenance. Since the monorail pulley 11 connected to the hanger 8 is located at the main beam 3, the air suction hood 13 will not interfere with the exhaust gas duct 17 during movement; and the thrust stops 12 are provided to limit the stroke of the air suction hood 13 to avoid collision with other columns.

[0032] Furthermore, the edges of the ladder 7 and the frame are provided with railings 6 to prevent people from climbing and falling down.

[0033] Furthermore, a fence gate 9 is provided at the entrance of the ladder 7 , and a metal warning sign 10 is installed on the fence gate 9 to prevent other irrelevant personnel from contacting the main valve 18 and causing the danger of misoperation.

[0034] Furthermore, the air suction hood 13 is connected to the exhaust pipe 17 via a detachable flange 16, which is convenient for disassembly and assembly.

[0035] Although the present invention has been disclosed as above in terms of preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A waste gas pipe support structure of an acrylic acid process wastewater pool, wherein the top of the acrylic acid process wastewater pool is connected to the waste gas pipe through an air suction hood, characterized in that: The exhaust gas pipe support structure comprises: A supporting foundation is erected on the top of the acrylic acid process wastewater pool, the supporting foundation includes a frame, a supporting column connecting the frame and the top of the wastewater pool, the frame includes two parallel main beams, a secondary beam located between the two main beams, the secondary beam is formed by connecting two H-shaped steels, the area surrounded by the two H-shaped steels forms a pipeline opening, the exhaust gas pipeline passes through the pipeline opening, and the exhaust gas pipeline has two ears erected on the main beams on both sides; A sliding assembly, the sliding assembly being arranged on the main beam, and the sliding assembly being connected to the air suction hood via a suspension rod; and A ladder connects the ground foundation to the framework of the supporting foundation.

2. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 1, characterized in that: The frame is provided with pedals at both sides of the pipeline opening, and the pedals are connected to the ladder.

3. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 2, characterized in that: The pedal is a steel plate with a star-shaped pattern on the surface.

4. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 1, characterized in that: The main beam has a track, and the sliding assembly includes a monorail pulley installed on the track and thrusters arranged on both sides of the track. The monorail pulley is connected to the air suction hood through a suspension rod.

5. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 1, characterized in that: The edges of the ladder and the frame are both provided with railings.

6. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 1, characterized in that: A fence door is arranged at the entrance of the ladder, and a metal warning sign is installed on the fence door.

7. The exhaust pipe support structure of an acrylic acid process wastewater pool according to claim 1, characterized in that: The air suction hood is connected to the exhaust gas pipeline via a detachable flange.

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