High-temperature-resistant equipment foundation structure

Abstract

The invention discloses a high-temperature-resistant equipment foundation structure which comprises a concrete foundation and steel fibers, the concrete foundation is arranged on a building, the steel fibers are arranged in the concrete foundation, the concrete foundation comprises filler, the filler is hollow ceramic microbeads, and the hollow ceramic microbeads are of a hollow structure. According to the high-temperature-resistant equipment foundation structure, cooling and heat insulation can be effectively achieved, the high-temperature-resistant capacity of the concrete equipment foundation structure is improved, on the premise that safety and functions are met, the influence of temperature conduction of high-temperature equipment running for a long time on plant floors is reduced, and the requirement for rapid construction is met. The technical scheme is simple and easy to understand, materials are easy to obtain, construction is not affected, and good popularization value is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a high-temperature resistant equipment foundation structure. Background Art

[0002] In nuclear power plants, due to process requirements, there will be high-temperature working conditions such as high-temperature equipment temperature loads, and the concrete will be in a high-temperature environment for a long time. If this high-temperature load directly acts on the main structure of the plant, it will cause deterioration and damage to the structural materials, affecting the safety of the structure. In conventional calculations, it is considered that the equipment foundation as a whole will not be crushed by the temperature effect, and the impact of the equipment foundation temperature on the floor slab when it is transferred to the floor slab is not considered. The impact of temperature on the structure is often met through structural methods such as reinforcement, and there are few ways to reduce the temperature of the equipment foundation. However, in nuclear power plants, there are often high-temperature equipment, and the temperature of the equipment foundation transferred to the floor slab is also very high. Therefore, how to reduce the temperature of the equipment foundation is an issue that must be considered. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-temperature resistant equipment foundation structure in view of the above-mentioned deficiencies in the prior art, to improve the high-temperature resistance of the concrete equipment foundation structure, to reduce the impact of temperature conduction of long-term high-temperature equipment on the floor slab, and to meet the needs of rapid construction.

[0004] The technical solution adopted to solve the technical problem of the present invention is to provide a high-temperature resistant equipment foundation structure, including: a concrete foundation and steel fibers. The concrete foundation is arranged on a building, and the steel fibers are arranged in the concrete foundation. The concrete foundation includes fillers, and the fillers are hollow ceramic microspheres, and the hollow ceramic microspheres are hollow structures.

[0005] Preferably, the mass content of the steel fiber is 1% to 1.8%.

[0006] Preferably, the concrete foundation further comprises concrete aggregate.

[0007] Preferably, the hollow ceramic microspheres are added in an amount of 10-30% of the total concrete aggregate mass. The total concrete aggregate includes fillers and concrete aggregates. The specific proportion is determined according to the strength and important requirements of the concrete.

[0008] Preferably, the concrete foundation also includes cementitious materials, admixtures, concrete admixtures and mixing water. The water-cement ratio should be determined according to the strength, slump and construction process requirements of the concrete. The amount of hollow ceramic microspheres should be appropriately adjusted to ensure the performance and construction quality of the concrete.

[0009] Preferably, the hollow ceramic microspheres include silicon dioxide and aluminum oxide as chemical components, wherein the mass content of silicon dioxide is between 50% and 60%, and the mass content of aluminum oxide is between 40% and 50%.

[0010] Preferably, the hollow ceramic microspheres have a particle size of 20 to 500 microns and a density of 0.4 to 0.8 g / cm 3 The compressive strength is 10-20MPa, and the thermal conductivity is 0.08-0.1w / m / ℃ at room temperature.

[0011] Preferably, the concrete foundation includes a concrete body and a thermal insulation mortar coating arranged on the outer layer of the concrete body, and the hollow ceramic microbeads are divided into two parts, one part is the hollow ceramic microbead filling grouting material inside the concrete body, and the other part is the hollow ceramic microbead thermal insulation mortar coating on the outer layer of the concrete body.

[0012] Preferably, the thermal insulation mortar coating has a dry density of 240-300 kg / m, a compressive strength of ≥0.20 MPa, a thermal conductivity of ≤0.070 W / (m·k), a linear shrinkage of ≤0.30%, a compression shear bond strength of ≥50, and a combustion performance level of A1;

[0013] The coating thickness of the thermal insulation mortar coating on the outer layer of the concrete body shall not exceed 20mm.

[0014] Preferably, the sand ratio of the concrete foundation is 10% to 46%, the water-cement ratio is 0.45 to 0.50, the slump is 3 to 5 cm, the volume ratio is 0.5% to 2.0%, and the water consumption and cement consumption per unit volume are 180 to 220 kg per kilogram.

[0015] Preferably, there are at least two adjacent equipment infrastructure structures with a preset distance between them.

[0016] Preferably, the preset distance between adjacent equipment infrastructure structures is 150 mm to 300 mm.

[0017] Preferably, there are two equipment infrastructure structures, the net height of the equipment infrastructure structures is H, along the arrangement direction of the two equipment infrastructure structures, the width of the short sides occupied by the two equipment infrastructure structures is d, and the ratio of H to d is not greater than 1.

[0018] Preferably, the high temperature resistant equipment foundation structure further comprises an anchor bolt hole provided on the concrete foundation, the anchor bolt hole is used to set the anchor bolt, the anchor bolt hole is provided at the center of the concrete foundation, and the distance b between the anchor bolt in the anchor bolt hole and the edge of the concrete foundation exceeds 300 mm. b is defined according to the equipment foundation size value.

[0019] Preferably, the high temperature resistant equipment foundation structure further comprises dowel bars arranged in the concrete foundation, and the dowel bar spacing is not less than the minimum reinforcement ratio.

[0020] Preferably, the high temperature resistant equipment foundation structure further includes an equipment steel plate embedded in the upper part of the concrete foundation.

[0021] The present invention provides a high temperature resistant equipment foundation structure, which can effectively reduce temperature and insulate, improve the high temperature resistance of the concrete equipment foundation structure, reduce the impact of temperature conduction of long-term high temperature equipment on the factory floor under the premise of meeting safety and functionality, and meet the needs of rapid construction. Its technical solution is simple and easy to understand, the material is easy to obtain, and the construction is not affected, which has a good promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A top view of the high temperature resistant equipment infrastructure structure in Example 2 of the present invention;

[0023] Figure 2 It is a cross-sectional view of the high temperature resistant equipment foundation structure in Example 2 of the present invention along the length direction;

[0024] Figure 3 It is a cross-sectional view along the width direction of the high temperature resistant equipment foundation structure in Example 2 of the present invention.

[0025] In the figure: 1-equipment steel plate; 2-concrete foundation; 3-anchor bolt hole; 4-floor slab; 5-steel fiber; 6-hollow ceramic micro-bead filling grouting material; 7-hollow ceramic micro-bead insulation mortar coating; 8-anchor bolt; 9-angle steel; 10-inserted reinforcement. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying 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 this patent.

[0029] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] Example 1

[0031] This embodiment provides a high temperature resistant equipment foundation structure, including: a concrete foundation and steel fibers. The concrete foundation is arranged on a building, and the steel fibers are arranged in the concrete foundation. The concrete foundation material includes a filler, and the filler is hollow ceramic microspheres, and the hollow ceramic microspheres are hollow structures.

[0032] This embodiment provides a high temperature resistant equipment foundation structure, which can effectively reduce temperature and insulate, improve the high temperature resistance of the concrete equipment foundation structure, reduce the impact of temperature conduction of long-term high temperature equipment on the factory floor, and meet the needs of rapid construction. Its technical solution is simple to understand, the material is easy to obtain, and the construction is not affected, which has a good promotion value.

[0033] Example 2

[0034] The present embodiment provides a high temperature resistant equipment foundation structure, including: a concrete foundation 2 and steel fibers 5. The concrete foundation 2 is arranged on a building, and the steel fibers 5 are arranged in the concrete foundation 2. The material of the concrete foundation 2 includes a filler, and the filler is a hollow ceramic microsphere, and the hollow ceramic microsphere is a hollow structure.

[0035] Specifically, the concrete foundation 2 in this embodiment is arranged on the floor slab 4 .

[0036] Preferably, the mass content of the steel fiber 5 is 1% to 1.8%.

[0037] Specifically, the mass content of the steel fiber 5 in this embodiment is 1.3%.

[0038] Preferably, the concrete foundation 2 further includes concrete aggregate.

[0039] Specifically, the concrete aggregate in this embodiment is concrete coarse aggregate.

[0040] Preferably, the hollow ceramic microspheres are added in an amount of 10-30% of the total concrete aggregate mass. The total concrete aggregate includes fillers and concrete aggregates. The specific proportion is determined according to the strength and important requirements of the concrete.

[0041] Specifically, in this embodiment, the amount of hollow ceramic microspheres added is 20% of the total aggregate mass of the concrete.

[0042] Preferably, the concrete foundation 2 also includes cementitious materials, admixtures, concrete admixtures and mixing water. The water-cement ratio should be determined according to the strength, slump and construction process requirements of the concrete. The amount of hollow ceramic microspheres should be appropriately adjusted to ensure the performance and construction quality of the concrete.

[0043] Preferably, the hollow ceramic microspheres include silicon dioxide and aluminum oxide as chemical components, wherein the mass content of silicon dioxide is between 50% and 60%, and the mass content of aluminum oxide is between 40% and 50%.

[0044] Specifically, the hollow ceramic microspheres in this embodiment include silicon dioxide and aluminum oxide as chemical components, wherein the mass content of silicon dioxide is 55% and the mass content of aluminum oxide is 45%.

[0045] Preferably, the hollow ceramic microspheres have a particle size of 20 to 500 microns and a density of 0.4 to 0.8 g / cm 3 The compressive strength is 10-20MPa, and the thermal conductivity is 0.08-0.1w / m / ℃ at room temperature.

[0046] Preferably, the concrete foundation 2 includes a concrete body and a thermal insulation mortar coating arranged on the outer layer of the concrete body, and the hollow ceramic microbeads are divided into two parts, one part is the hollow ceramic microbead filling grouting material 6 inside the concrete body, and the other part is the hollow ceramic microbead thermal insulation mortar coating 7 on the outer layer of the concrete body.

[0047] Preferably, the thermal insulation mortar coating has a dry density of 240-300 kg / m, a compressive strength of ≥0.20 MPa, a thermal conductivity of ≤0.070 W / (m·k), a linear shrinkage of ≤0.30%, a compression shear bond strength of ≥50, and a combustion performance level of A1;

[0048] The coating thickness of the thermal insulation mortar coating on the outer layer of the concrete body shall not exceed 20mm.

[0049] Preferably, the sand ratio of the concrete foundation 2 is 10% to 46%, the water-cement ratio is 0.45 to 0.50, the slump is 3 to 5 cm, the volume ratio is 0.5% to 2.0%, and the water consumption and cement consumption per unit volume are 180 to 220 kg per kilogram.

[0050] Preferably, there are at least two adjacent equipment infrastructure structures with a preset distance between them.

[0051] Preferably, the preset distance between adjacent equipment infrastructure structures is 150 mm to 300 mm.

[0052] Specifically, in this embodiment, the preset distance between adjacent equipment infrastructure structures is 200 mm.

[0053] Specifically, the comparison of the impact of the change in the layout of the equipment infrastructure on the change in the center temperature of the floor slab (the height of the equipment infrastructure is 700 mm). Specifically, the complete equipment infrastructure refers to the equipment being placed on one equipment infrastructure. The equipment infrastructure block refers to the equipment being placed on at least two equipment infrastructures, and the preset distance between adjacent equipment infrastructures in this embodiment is 200 mm. As shown in Table 1 below:

[0054]

[0055] Table 1

[0056] Preferably, there are two equipment infrastructure structures, the net height of the equipment infrastructure structures is H, along the arrangement direction of the two equipment infrastructure structures, the width of the short sides occupied by the two equipment infrastructure structures is d, and the ratio of H to d is less than 1.

[0057] Preferably, the high temperature resistant equipment foundation structure further comprises an anchor bolt hole 3 provided on the concrete foundation 2, the anchor bolt hole 3 is used to provide an anchor bolt 8, the anchor bolt hole 3 is provided at the center of the concrete foundation 2, and the distance b between the anchor bolt 8 in the anchor bolt hole 3 and the edge of the concrete foundation 2 exceeds 300 mm. b is defined according to the equipment foundation dimension value.

[0058] Specifically, in this embodiment, the distance b between the anchor bolt 8 in the anchor bolt hole 3 and the edge of the concrete foundation 2 is 400 mm.

[0059] Preferably, the high temperature resistant equipment foundation structure further comprises dowel bars 10 arranged in the concrete foundation 2, and the spacing between the dowel bars 10 is not less than the minimum reinforcement ratio.

[0060] Preferably, the high temperature resistant equipment foundation structure further comprises an equipment steel plate 1 embedded in the upper part of the concrete foundation 2. The equipment steel plate 1 is located at the bottom of the equipment.

[0061] Specifically, the high temperature resistant equipment foundation structure in this embodiment further includes angle steels 9 arranged on the concrete foundation 2 .

[0062] Figure 1 This is a top view of the basic structure of the high temperature resistant composite equipment proposed in this embodiment.

[0063] like Figure 1 As shown, the high temperature resistant equipment foundation structure is divided into two equipment foundation structures by a middle break in the length direction. The size of the middle break can be determined according to the needs, and the width of the hole ranges from 150mm to 300mm. The anchor bolt holes 3 of the equipment foundation structure are respectively located at the center of the two parts of the equipment foundation structure t, ensuring that the distance b between the anchor bolt 8 and the edge of the equipment foundation structure exceeds 300mm.

[0064] Figure 2 This is a cross-sectional view along the length direction of the high temperature resistant composite equipment foundation structure proposed in this embodiment.

[0065] Figure 2 In the middle, the equipment foundation structure is disconnected, and the upper part of the equipment foundation structure is pre-buried with an equipment steel plate 1. The net height of the equipment foundation structure is H, and along the direction in which the two equipment foundation structures are arranged, the width occupied by the two equipment foundation structures is d. The ratio of H to d (height-to-width ratio) should be controlled within 1:1.

[0066] The concrete foundation 2 material is composed of hollow ceramic microspheres, cementitious materials, concrete aggregates, admixtures, concrete admixtures and mixing water. Steel fiber 5 is arranged in the concrete foundation 2, and the content of steel fiber 5 is 1% to 1.8%. The sand ratio of the concrete foundation 2 is 10% to 46%, the water-cement ratio is 0.45 to 0.50, the slump is 3 to 5 cm, the volume rate is 0.5% to 2.0%, and the water consumption and cement consumption per unit volume are 180-220 kg per kilogram. The hollow ceramic microspheres are divided into two parts, one part is the hollow ceramic microsphere filling grouting material 6 inside the concrete body, and the other part is the hollow ceramic microsphere insulation mortar coating 7 on the outer layer of the concrete body. As an insulation mortar, it needs to meet the following technical requirements: dry density of 240 to 300 kg / m, compressive strength ≥ 0.20Mpa, thermal conductivity ≤ 0.070W / (m·k), linear shrinkage ≤ 0.30%, compression shear bond strength ≥ 50, and combustion performance level A1. The coating thickness of the upper thermal insulation mortar coating shall not exceed 20mm.

[0067] Figure 3 This is a cross-sectional view of the high temperature resistant composite equipment foundation structure proposed by the present invention along the width direction, and the cross-sectional position is shown in FIG. Figure 1 Among them, the inserted reinforcement 10 needs to be arranged away from the anchor bolts 8 of the equipment foundation structure, and the reinforcement spacing of the equipment foundation structure shall not be less than the minimum reinforcement ratio.

[0068] The top of the equipment foundation is used to place equipment, and the temperature of the equipment is transferred to the building below the equipment foundation through the equipment foundation structure. Specifically, in this embodiment, the building is a floor, and the temperature of the equipment above the equipment foundation is transferred to the floor below the equipment foundation through the equipment foundation structure. The interior of the hollow ceramic microbeads is a hollow structure, which has the advantages of light weight, high strength, high temperature resistance, and heat insulation, so that the equipment foundation has the functions of high temperature resistance and heat insulation. After the temperature of the equipment is transferred through the equipment foundation structure, the temperature of the top surface of the equipment foundation structure is much higher than the temperature of the center of the floor below it. The temperature of the top surface of the equipment foundation structure at different heights in this embodiment is compared with the temperature of the center of the floor below it, as shown in Table 2 below:

[0069]

[0070] Table 2

[0071] To implement the technical solution of this embodiment, the innovative invention contents are as follows:

[0072] (1) Based on the goal of reducing the temperature transmitted from the equipment foundation structure to the floor 4, this embodiment innovatively proposes a composite structure composed of hollow ceramic microspheres, steel fibers 5, and concrete aggregates. The hollow ceramic microspheres in this structure are a new type of filler with multiple uses and excellent performance. The main components of the hollow ceramic microsphere material are silicon dioxide and aluminum oxide, which can significantly reduce the density and thermal conductivity of the material without affecting the mechanical properties of the material. Hollow ceramic microspheres can be added to building materials such as cement mortar to act as lightweight aggregates, or as fillers in coatings. The interior of the hollow ceramic microspheres is a hollow structure with the advantages of light weight, high strength, high temperature resistance, and heat insulation. Its particle size ranges from 20 to 500 microns, and its density is generally between 0.4 and 0.8 g / cm3, which is lighter than water. At the same time, the compressive strength of the hollow ceramic microspheres is as high as 10 to 20 MPa, which is several times higher than that of ordinary concrete. Hollow ceramic microspheres have extremely high melting points and inertness, and excellent thermal insulation properties (thermal conductivity coefficient is 0.08-0.1w / m / ℃ at room temperature). They are ideal powder fillers and thermal insulation coatings for lightweight, high-temperature resistant coatings and for extending fire resistance time.

[0073] (2) Based on the goal of reducing the reinforcement of the equipment foundation and reducing the influence of the heat transfer of the steel bars of the equipment foundation on the floor slab 4, this embodiment proposes to add steel fibers 5 to ordinary concrete. These randomly distributed steel fibers 5 can significantly improve the tensile and bending properties of concrete, and have good ductility, which can effectively reduce the reinforcement ratio of the concrete equipment foundation and reduce the influence of the heat transfer of the steel bars on the temperature of the floor slab 4. At the same time, the steel fibers 5 can also effectively prevent the expansion of tiny cracks inside the concrete and the formation of macro cracks, and can avoid cracks caused by the filler of hollow ceramic microspheres.

[0074] (3) Based on the goal of reducing the impact of the highest temperature in the center of the equipment foundation structure on the floor 4, this embodiment proposes a block-arranged equipment foundation structure, which hollows out the middle of the equipment foundation structure to increase ventilation and heat dissipation, reduce the temperature at the highest point of the equipment foundation structure when it is heated, and reduce the temperature impact on the floor 4 foundation. It can also reduce the height of the concrete foundation 2, reduce the floor height of the plant, and reduce the equipment floor response spectrum, thereby reducing the impact of temperature on the floor 4 and weakening the impact of the equipment and the equipment foundation structure on the reinforcement of the floor 4.

[0075] (4) In the composite concrete equipment foundation structure proposed in the present invention, the span of the equipment foundation structure can be adjusted to adapt to high-temperature equipment of different sizes, and the requirements of equipment of different spans and temperature levels can be met by adjusting the size of the central hole of the equipment foundation structure, the reinforcement ratio of the equipment foundation structure, the filling amount of steel fiber 5, and the use amount of hollow ceramic microspheres, which has great flexibility and applicability.

[0076] This embodiment provides a high temperature resistant equipment foundation structure, which can effectively reduce temperature and insulate, improve the high temperature resistance of the concrete equipment foundation structure, reduce the impact of temperature conduction of long-term high temperature equipment on the factory floor 4 under the premise of meeting safety and functionality, and meet the needs of rapid construction. Its technical solution is simple and easy to understand, the material is easy to obtain, and the construction is not affected, which has a good promotion value.

[0077] Example 3

[0078] This embodiment provides a high temperature resistant equipment infrastructure, which is different from that in Embodiment 2 in that:

[0079] The mass content of the steel fiber in this embodiment is 1%.

[0080] In this embodiment, the amount of hollow ceramic microspheres added is 30% of the total aggregate mass of the concrete.

[0081] In this embodiment, the hollow ceramic microspheres include silicon dioxide and aluminum oxide as chemical components, wherein the mass content of silicon dioxide is 60% and the mass content of aluminum oxide is 40%.

[0082] In this embodiment, the preset distance between adjacent equipment infrastructure structures is 150 mm.

[0083] In this embodiment, the distance b between the anchor bolt in the anchor bolt hole and the edge of the concrete foundation is 600 mm.

[0084] This embodiment provides a high temperature resistant equipment foundation structure, which can effectively reduce temperature and insulate, improve the high temperature resistance of the concrete equipment foundation structure, reduce the impact of temperature conduction of long-term high temperature equipment on the factory floor, and meet the needs of rapid construction. Its technical solution is simple to understand, the material is easy to obtain, and the construction is not affected, which has a good promotion value.

[0085] Example 4

[0086] This embodiment provides a high temperature resistant equipment infrastructure, which is different from that in Embodiment 2 in that:

[0087] The mass content of the steel fiber in this embodiment is 1.4%.

[0088] In this embodiment, the amount of hollow ceramic microspheres added is 10% of the total aggregate mass of the concrete.

[0089] In this embodiment, the hollow ceramic microspheres include silicon dioxide and aluminum oxide as chemical components, wherein the mass content of silicon dioxide is 50% and the mass content of aluminum oxide is 50%.

[0090] In this embodiment, the preset distance between adjacent equipment infrastructure structures is 300 mm.

[0091] In this embodiment, the distance b between the anchor bolt in the anchor bolt hole and the edge of the concrete foundation is 900 mm.

[0092] The height of the equipment foundation structure in Examples 3 and 4 is 800 mm. After the temperature of the equipment is transferred through the equipment foundation structure, the temperature of the top surface of the equipment foundation structure is much higher than the temperature of the center of the floor below it. The temperature of the top surface of the equipment foundation structure is compared with the temperature of the center of the floor below it, as shown in Table 3 below:

[0093]

[0094]

[0095] Table 3

[0096] This embodiment provides a high temperature resistant equipment foundation structure, which can effectively reduce temperature and insulate, improve the high temperature resistance of the concrete equipment foundation structure, reduce the impact of temperature conduction of long-term high temperature equipment on the factory floor, and meet the needs of rapid construction. Its technical solution is simple to understand, the material is easy to obtain, and the construction is not affected, which has a good promotion value.

[0097] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A high temperature resistant equipment infrastructure, characterized in that: include: Concrete foundation, steel fiber, the concrete foundation is arranged on the building, the steel fiber is arranged in the concrete foundation, the concrete foundation comprises filler, the filler is hollow ceramic microspheres, and the hollow ceramic microspheres are hollow structures.

2. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: The mass content of steel fiber is 1% to 1.8%.

3. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: Concrete foundation also includes concrete aggregate.

4. The high temperature resistant equipment foundation structure according to claim 3, characterized in that: The content of hollow ceramic microspheres is 10% to 30% of the total aggregate mass of concrete. The total aggregate of concrete includes fillers and concrete aggregates.

5. The high temperature resistant equipment foundation structure according to claim 3, characterized in that: Concrete foundation also includes cementitious materials, admixtures, concrete admixtures and mixing water.

6. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: The hollow ceramic microspheres include silicon dioxide and aluminum oxide chemical components, wherein the mass content of silicon dioxide is between 50% and 60%, and the mass content of aluminum oxide is between 40% and 50%.

7. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: The particle size of hollow ceramic microspheres is 20 to 500 microns, and the density is 0.4 to 0.8 g / cm 3 The compressive strength is 10-20MPa, and the thermal conductivity is 0.08-0.1w / m / ℃ at room temperature.

8. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: The concrete foundation includes a concrete body and a thermal insulation mortar coating arranged on the outer layer of the concrete body. The hollow ceramic microspheres are divided into two parts, one part is the hollow ceramic microsphere filling grouting material inside the concrete body, and the other part is the hollow ceramic microsphere thermal insulation mortar coating on the outer layer of the concrete body.

9. The high temperature resistant equipment foundation structure according to claim 8, characterized in that: The dry density of the thermal insulation mortar coating is 240-300kg / m, the compressive strength is ≥0.20Mpa, the thermal conductivity is ≤0.070W / (m·k), the linear shrinkage is ≤0.30%, the compression shear bond strength is ≥50, and the combustion performance level is A1; The coating thickness of the thermal insulation mortar coating on the outer layer of the concrete body shall not exceed 20mm.

10. The high temperature resistant equipment foundation structure according to any one of claims 1 to 9, characterized in that: The sand ratio of the concrete foundation is 10% to 46%, the water-cement ratio is 0.45 to 0.50, the slump is 3 to 5 cm, the volume ratio is 0.5% to 2.0%, and the water consumption and cement consumption per unit volume are 180 to 220 kg per kilogram.

11. The high temperature resistant equipment foundation structure according to claim 1, characterized in that: There are at least two adjacent equipment infrastructure structures, with a preset distance between them.

12. The high temperature resistant equipment foundation structure according to claim 11, characterized in that: The preset distance between adjacent equipment infrastructures is 150 mm to 300 mm.

13. The high temperature resistant equipment foundation structure according to claim 11 or 12, characterized in that: There are two equipment infrastructure structures, the net height of the equipment infrastructure structures is H, along the arrangement direction of the two equipment infrastructure structures, the width of the short sides occupied by the two equipment infrastructure structures is d, and the ratio of H to d is not greater than 1.

14. The high temperature resistant equipment foundation structure according to any one of claims 1 to 9, 11 and 12, characterized in that: It also includes an anchor bolt hole set on the concrete foundation, the anchor bolt hole is used to set the anchor bolt, the anchor bolt hole is set at the center of the concrete foundation, and the anchor bolt in the anchor bolt hole is more than 300mm away from the edge dimension b of the concrete foundation.

15. The high temperature resistant equipment foundation structure according to any one of claims 1 to 9, 11 and 12, characterized in that: It also includes dowel bars set in the concrete foundation, and the spacing between dowel bars is not less than the minimum reinforcement ratio.

16. The high temperature resistant equipment foundation structure according to any one of claims 1 to 9, 11 and 12, characterized in that: It also includes equipment steel plates embedded in the upper part of the concrete foundation.

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