A basic structure of air separation tower

Abstract

The present invention is an air separation tower foundation structure, comprising a foundation structure body, the bottom of the foundation structure body is connected to a pile foundation, an isolation waterproof layer capable of separating and layering the foundation structure body is arranged in the foundation structure body, at least one ventilation pipe capable of cold insulation is arranged in the foundation structure body, an air separation tower connection part is arranged on the foundation structure body, the air separation tower connection part comprises multiple cold insulation layers, and a surface layer is laid on the top of the foundation structure body. The air separation tower foundation structure effectively isolates the air separation tower from the foundation structure body through multiple cold insulation measures, improves the cold insulation effect, reduces the freezing and cracking damage of the foundation structure body, and improves the service life.

Description

Technical Field

[0001] The invention relates to the technical field of air separation, in particular to an air separation tower foundation structure. Background Art

[0002] "Air separation tower" occupies a very important position in the large-scale oxygen production industry. What we call air separation tower is actually air separation equipment. Due to the needs of the process flow, this equipment is generally built relatively high like an iron tower, hence the name.

[0003] The foundation of the air separation tower is an important part of the air separation tower. The air separation tower is a kind of deep-cold equipment with a low temperature in the lower tower. As the foundation of the air separation tower, it has special design requirements. It is different from the foundation of other mechanical equipment. It must not only consider sufficient compressive strength, reliable stability and a high horizontal reference surface, but also consider that the equipment it bears is in a low-temperature working state. Effective measures must be taken to isolate the equipment from the invasion of the foundation and the foundation to avoid freezing and cracking damage. At present, there are many forms of air separation tower foundations, most of which are designed with a concrete foundation plus a cold insulation layer. The cold insulation layer is used to reduce the impact of low temperature on the concrete foundation. The cold insulation layer is generally laid in the contact part with the air separation tower. The antifreeze concrete and antifreeze mortar are applied. The problem is that the cold insulation effect of a cold insulation layer is not ideal.

[0004] Therefore, the inventors, relying on their many years of experience and practice in related industries, propose an air separation tower infrastructure to overcome the defects of the prior art. Summary of the invention

[0005] The object of the present invention is to provide an air separation tower foundation structure to overcome the problems of poor cold insulation effect and the like in the prior art. The air separation tower foundation structure effectively isolates the air separation tower from the foundation structure body through multiple cold insulation measures, thereby improving the cold insulation effect, reducing the freezing and cracking damage of the foundation structure body, and increasing the service life.

[0006] The objective of the present invention is achieved in this way. An air separation tower foundation structure comprises a foundation structure body, the bottom of the foundation structure body is connected to a pile foundation, an isolation and waterproof layer capable of separating the foundation structure body into layers is arranged in the foundation structure body, at least one cold-insulating ventilation pipe is arranged in the foundation structure body, an air separation tower connection part is arranged on the foundation structure body, the air separation tower connection part comprises a plurality of cold-insulating layers, and a surface layer is laid on the top of the foundation structure body.

[0007] In a preferred embodiment of the present invention, the multiple cold insulation layers include a waterproof and antifreeze mortar layer, a pearlescent sand concrete layer, a steel bar wire mesh layer and a cold insulation top layer laid from bottom to top.

[0008] In a preferred embodiment of the present invention, the isolation waterproof layer is a single layer, the basic structure body is divided into an upper basic structure and a lower basic structure by the isolation waterproof layer, the ventilation pipe is horizontally passed through the upper basic structure, both ends of the ventilation pipe are connected to the outside; the bottom of the lower basic structure is fixedly connected to the foundation through the pile foundation.

[0009] In a preferred embodiment of the present invention, the air separation tower connection portion further comprises a plurality of connection bolt holes, each of which is located in an upper foundation structure around the plurality of cold insulation layers.

[0010] In a preferred embodiment of the present invention, a waterproof and antifreeze grouting material layer is arranged above each of the connecting bolt holes and around the multiple cold insulation layers.

[0011] In a preferred embodiment of the present invention, the isolation and waterproof layer includes a rectangular groove plate portion, and a shoulder plate is provided on the top of the rectangular groove plate portion extending outward.

[0012] In a preferred embodiment of the present invention, the isolation waterproof layer is composed of waterproof stainless steel plate units.

[0013] In a preferred embodiment of the present invention, a waterproof mortar leveling layer is provided below the bottom of the rectangular groove plate portion.

[0014] In a preferred embodiment of the present invention, the top of the basic structure body is located around the air separation tower connection portion to form a working platform.

[0015] In a preferred embodiment of the present invention, a fence is arranged around the working platform.

[0016] As described above, the air separation tower foundation structure provided by the present invention has the following beneficial effects:

[0017] In an air separation tower foundation structure provided by the present invention, an isolation waterproof layer, a ventilation pipe and multiple cold insulation layers are layered to achieve multiple cold insulation of the foundation structure body. The isolation waterproof layer is located inside the foundation structure body, effectively ensuring the cold insulation effect of the foundation structure body below it, and ensuring the safety and reliability of the foundation structure body below it; air circulation in the ventilation pipe can effectively achieve cold insulation inside the foundation structure body; the multiple cold insulation layers achieve direct cold insulation at the connection between the air separation tower and the foundation structure body, reducing low-temperature frost cracking damage on the upper part of the foundation structure body. The air separation tower foundation structure provided by the present invention effectively improves the cold insulation effect, reduces frost cracking damage to the foundation structure body, and improves the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0019] in:

[0020] Figure 1 : is a top view of the air separation tower infrastructure of the present invention.

[0021] Figure 2 :for Figure 1 Middle AA section view.

[0022] Figure 3 :for Figure 1 Middle BB section view.

[0023] In the figure:

[0024] 100. Air separation tower foundation structure;

[0025] 1. Foundation structure; 11. Upper foundation structure; 12. Lower foundation structure; 13. Concrete cushion;

[0026] 2. Pile foundation;

[0027] 3. Ventilation pipe;

[0028] 4. Air separation tower connection; 41. Waterproof and antifreeze mortar layer; 42. Pearlescent sand concrete layer; 43. Steel bar wire mesh layer; 44. Cold insulation top layer; 45. Connection bolt hole; 46. Waterproof and antifreeze grouting material layer;

[0029] 5. Surface layer;

[0030] 6. Isolation waterproof layer;

[0031] 7. Waterproof mortar leveling layer;

[0032] 8. Fence. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0034] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an air separation tower foundation structure 100, including a foundation structure body 1, the bottom of the foundation structure body 1 is connected to the pile foundation 2, an isolation waterproof layer 6 capable of separating and layering the foundation structure body 1 is arranged in the foundation structure body 1, at least one ventilation pipe 3 capable of cold insulation is arranged in the foundation structure body 1, an air separation tower connection part 4 is arranged on the foundation structure body 1, the air separation tower connection part 4 includes multiple cold insulation layers, and a surface layer 5 is laid on the top of the foundation structure body 1. In a specific embodiment of the present invention, the number of ventilation pipes 3 is 9, and the ventilation pipes 3 are composed of steel pipes with a diameter of 159 mm and a wall thickness of 4.5 mm. The air circulates in the ventilation pipes 3, which can effectively achieve cold insulation in the foundation structure body 1. The surface layer 5 is made of waterproof and antifreeze fine stone concrete, which is directly in contact with the air separation tower equipment.

[0037] In an air separation tower foundation structure provided by the present invention, an isolation waterproof layer, a ventilation pipe and multiple cold insulation layers are layered to achieve multiple cold insulation of the foundation structure body. The isolation waterproof layer is located inside the foundation structure body, effectively ensuring the cold insulation effect of the foundation structure body below it, and ensuring the safety and reliability of the foundation structure body below it; air circulation in the ventilation pipe can effectively achieve cold insulation inside the foundation structure body; the multiple cold insulation layers achieve direct cold insulation at the connection between the air separation tower and the foundation structure body, reducing low-temperature frost cracking damage on the upper part of the foundation structure body. The air separation tower foundation structure provided by the present invention effectively improves the cold insulation effect, reduces frost cracking damage to the foundation structure body, and improves the service life.

[0038] Further, if Figure 2 , Figure 3 As shown, the multiple cold insulation layers include a waterproof and antifreeze mortar layer 41, a pearl sand concrete layer 42, a steel wire mesh layer 43 and a cold insulation top layer 44 laid from bottom to top. In a specific embodiment of the present invention, a groove is set at the position where the air separation tower needs to be supported on the basic structure body 1, and the waterproof and antifreeze mortar layer 41 is first laid at the bottom of the groove, with a thickness of 35 mm (the thickness size is determined according to actual needs), and the pearl sand concrete layer 42 is laid on the top surface of the waterproof and antifreeze mortar layer 41, with a thickness of 300 mm (the thickness size is determined according to actual needs), and the steel wire mesh layer 43 is laid on the top surface of the pearl sand concrete layer 42, and the cold insulation top layer 44 is laid on the top surface of the steel wire mesh layer 43. The cold insulation top layer 44 and the surface layer 5 are made of the same material, both of which are made of C60 waterproof and antifreeze fine stone concrete, and the thickness of the cold insulation top layer 44 is 50 mm (the thickness size is determined according to actual needs).

[0039] like Figure 2 , Figure 3 As shown, in the present embodiment, the isolation waterproof layer 6 inside the foundation structure body 1 is a single layer (the isolation waterproof layer 6 can also be multiple layers spaced up and down, then the foundation structure body 1 is divided into more layers), and the foundation structure body 1 is divided up and down by the isolation waterproof layer 6 to form an upper foundation structure 11 and a lower foundation structure 12, and the isolation waterproof layer 6 realizes cold insulation inside the foundation structure body 1, ensures the safety of the lower foundation structure 12, and improves the overall stability; a ventilation pipe 3 is horizontally passed through the upper foundation structure 11, and both ends of the ventilation pipe 3 are connected to the outside, and the ventilation pipe 3 realizes low-temperature dispersion of the upper foundation structure 11 through the air flowing inside it, thereby realizing cold insulation inside the upper foundation structure 11; the bottom of the lower foundation structure 12 is fixedly connected to the foundation through the pile foundation 2, and in the present embodiment, a concrete cushion layer 13 is laid between the bottom of the lower foundation structure 12 and the foundation.

[0040] Further, if Figure 2 , Figure 3As shown, the air separation tower connection part 4 also includes a plurality of connection bolt holes 45, each of which is located in the upper foundation structure 11 around the multiple cold insulation layers. The air separation tower is fixed to the air separation tower foundation structure 100 by bolts, and the plurality of connection bolt holes 45 are reserved and formed when the foundation structure body 1 is cast.

[0041] In this embodiment, after the air separation tower and the air separation tower foundation structure 100 are bolted together, a plurality of connection bolt holes 45 are filled with waterproof and antifreeze grouting material, and a waterproof and antifreeze grouting material layer 46 is arranged (constituted) above each connection bolt hole 45 and around the plurality of cold insulation layers.

[0042] Further, if Figure 2 , Figure 3 As shown, in a specific embodiment of the present invention, the isolation waterproof layer 6 includes a rectangular groove plate portion, and a shoulder plate is provided on the top of the rectangular groove plate portion. In a specific embodiment of the present invention, the isolation waterproof layer 6 is composed of a waterproof stainless steel plate unit, and the thickness of the waterproof stainless steel plate unit is 3 mm (the thickness size is determined according to actual needs). A receiving groove matching the shape of the rectangular groove plate portion is provided on the top of the lower base structure 12 to ensure that the rectangular groove plate portion can be attached to the receiving groove.

[0043] Further, if Figure 2 , Figure 3 As shown, a waterproof mortar leveling layer 7 is provided below the bottom of the rectangular groove plate portion. The waterproof mortar leveling layer 7 is laid on the top surface of the lower foundation structure 12 using M10 waterproof mortar.

[0044] Further, if Figure 1 , Figure 2 , Figure 3 As shown, in order to facilitate installation and process maintenance and repair, the top of the basic structure body 1 is located around the air separation tower connection part 4 to form a working platform, and the staff can walk on the working platform. In this embodiment, a fence 8 is set around the working platform, and the fence 8 can prevent falling and ensure the safety of the staff.

[0045] The construction method of the air separation tower foundation structure 100 of the present invention is as follows:

[0046] First, the pile foundation 2 is installed on the foundation, a concrete cushion layer 13 is laid on the foundation, and a lower foundation structure 12 is cast on the concrete cushion layer 13. At this time, the upper part of the pile foundation 2 is inserted and fixedly connected in the lower foundation structure 12, and the lower foundation structure 12 is fixedly connected to the foundation. The top of the lower foundation structure 12 is cast to form a receiving groove; a waterproof mortar leveling layer 7 is laid on the bottom of the receiving groove, and then an isolation waterproof layer 6 is attached, and an upper foundation structure 11 is cast. During the casting process, a ventilation pipe 3 is inserted, and a connection bolt hole 45 is preset. The top of the upper foundation structure 11 is cast to form a A groove is formed; multiple cold insulation layers are laid at the position where the air separation tower is supported, specifically including first laying a waterproof antifreeze mortar layer 41 with a thickness of 35mm at the bottom of the groove, laying a pearl sand concrete layer 42 with a thickness of 300mm on the top surface of the waterproof antifreeze mortar layer 41, laying a steel wire mesh layer 43 on the top surface of the pearl sand concrete layer 42, and laying a cold insulation top layer 44 on the top surface of the steel wire mesh layer 43. The cold insulation top layer 44 and the surface layer 5 are made of the same material, both of which are made of C60 waterproof antifreeze fine stone concrete, and the thickness of the cold insulation top layer 44 is 50mm. The air separation tower falls on the multiple cold insulation layers, and bolts are used to complete the connection and fixation between the air separation tower and the air separation tower foundation structure 100. After installation, waterproof antifreeze grouting material is filled into multiple connection bolt holes 45, and a waterproof antifreeze grouting material layer 46 is formed above each connection bolt hole 45 and around the multiple cold insulation layers. The top of the foundation structure body 1 is located around the air separation tower connection part 4 and the surface layer 5 is laid to complete the construction of the air separation tower foundation structure 100.

[0047] As described above, the air separation tower foundation structure provided by the present invention has the following beneficial effects:

[0048] In an air separation tower foundation structure provided by the present invention, an isolation waterproof layer, a ventilation pipe and multiple cold insulation layers are layered to achieve multiple cold insulation of the foundation structure body. The isolation waterproof layer is located inside the foundation structure body, effectively ensuring the cold insulation effect of the foundation structure body below it, and ensuring the safety and reliability of the foundation structure body below it; air circulation in the ventilation pipe can effectively achieve cold insulation inside the foundation structure body; the multiple cold insulation layers achieve direct cold insulation at the connection between the air separation tower and the foundation structure body, reducing low-temperature frost cracking damage on the upper part of the foundation structure body. The air separation tower foundation structure provided by the present invention effectively improves the cold insulation effect, reduces frost cracking damage to the foundation structure body, and improves the service life.

[0049] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An air separation tower foundation structure, characterized in that: The base structure comprises a base structure body, the bottom of the base structure body is connected to the pile foundation, an isolation waterproof layer capable of separating and layering the base structure body is arranged in the base structure body, at least one ventilation pipe capable of cold insulation is arranged in the base structure body, an air separation tower connection part is arranged on the base structure body, the air separation tower connection part comprises a plurality of cold insulation layers, and a surface layer is laid on the top of the base structure body; The multiple cold insulation layers include a waterproof and antifreeze mortar layer, a pearlescent sand concrete layer, a steel bar wire mesh layer and a cold insulation top layer laid from bottom to top; The isolation waterproof layer is a single layer, and the foundation structure body is isolated from top to bottom by the isolation waterproof layer to form an upper foundation structure and a lower foundation structure. The ventilation pipe is horizontally passed through the upper foundation structure, and both ends of the ventilation pipe are connected to the outside; the bottom of the lower foundation structure is fixedly connected to the foundation through the pile foundation; The isolation waterproof layer comprises a rectangular groove plate portion, a shoulder plate is provided on the top of the rectangular groove plate portion extending outward; a waterproof mortar leveling layer is provided below the bottom of the rectangular groove plate portion; The top of the basic structure body is located around the air separation tower connection portion to form a working platform.

2. The air separation tower foundation structure according to claim 1, characterized in that: The air separation tower connection part also includes a plurality of connection bolt holes, each of which is located in the upper foundation structure around the multiple cold insulation layers.

3. The air separation tower foundation structure according to claim 2, characterized in that: A waterproof and antifreeze grouting material layer is arranged above each of the connecting bolt holes and around the multiple cold insulation layers.

4. The air separation tower foundation structure according to claim 1, characterized in that: The isolation waterproof layer is composed of waterproof stainless steel plate units.

5. The air separation tower foundation structure according to claim 1, characterized in that: A fence is arranged around the working platform.

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