CN203475462U

CN203475462U - Medium-large type naturally-ventilated cooling tower annular foundation

Info

Publication number: CN203475462U
Application number: CN201320586279.7U
Authority: CN
Inventors: 彭德刚; 李模军
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-03-12
Anticipated expiration: 2023-09-23

Abstract

The utility model discloses a medium-large type naturally-ventilated cooling tower annular foundation. The annular foundation is a square body with a hollow hole structure on the interior. As a preferable mode, the vertical section of the annular foundation is shaped like the Chinese character 'hui'. The medium-large type naturally-ventilated cooling tower annular foundation has the advantages that the requirements for the foundation bearing capacity and the annular foundation strength and rigidity can be met, and also the annular foundation can be fully utilized; furthermore, the amount of reinforced concrete of the annular foundation is saved by about 15%-30%; besides, after the novel annular foundation is adopted, the influence of temperature stress on the concrete can be relieved.

Description

Big-and-middle-sized cooling stack cyclic group

Technical field

The utility model relates to a kind of cooling tower cyclic group, relates in particular to a kind of ring foundation of big-and-middle-sized cooling stack, belongs to cooling stack technical field.

Background technology

The ring foundation of built big-and-middle-sized cooling stack all adopts steel concrete form, and cooling tower ring foundation is that cyclic group is solid.Along with cooling tower is constantly to tall and bigization development, for meeting bearing capacity of foundation soil, stability, intensity and rigidity requirement, the width of cyclic group and highly increasing.Thus, cyclic group is more and more to concrete demand, and cyclic group amount of concrete used has reached 40%～50% of tower cylinder amount of concrete; Yet, the width of cyclic group and highly mainly being controlled by bearing capacity of foundation soil and moment of flexure; The shear-carrying capacity of cyclic group is not used foot far away, and cyclic group is also underutilized.

In addition, the solid cyclic group adopting is at present concrete in mass, and the impact of concrete temperature stress is larger.

Utility model content

The purpose of this utility model is: a kind of big-and-middle-sized cooling stack cyclic group is provided, give full play to cyclic group reinforced concrete soil bearing capacity, solve the technical problem that existing cyclic group is underutilized, thereby can effectively solve above-mentioned problems of the prior art.

The purpose of this utility model is to realize by following technical proposals: a kind of big-and-middle-sized cooling stack cyclic group, described cyclic group is the inner square body with hollow pore space structure.

As preferably, described cyclic group is the rectangular body structure that Reinforced Concrete Materials is made.

As a kind of optimal way, the longitudinal section of described cyclic group is " returning " shape.

As another optimal way, the longitudinal section of described cyclic group is " work " shape.

As another optimal way, the longitudinal section of described cyclic group is two " work " shapes.

Compared with prior art, the beneficial effects of the utility model: the big-and-middle-sized cooling stack cyclic group of the utility model, possesses following advantage:

1), both met bearing capacity of foundation soil, cyclic group intensity and rigidity requirement, and can make again cyclic group be fully used;

2), save cyclic group steel concrete amount approximately 15～30%;

3), adopt after this novel cyclic group, can reduce the impact of concrete temperature stress.

Accompanying drawing explanation

Fig. 1 is the structural representation of the big-and-middle-sized cooling stack cyclic group of the utility model;

Fig. 2 is the schematic cross-section of cyclic group embodiment 1;

Fig. 3 is the schematic cross-section of cyclic group embodiment 2;

Fig. 4 is the schematic cross-section of cyclic group embodiment 3.

In figure: 1-cooling tower cylinder, 2-inclined strut, 3-cyclic group.

The specific embodiment

Below in conjunction with specific embodiment, the utility model is further described.

Disclosed all features in this manual, or the step in disclosed all methods or process, except the speciality and/or step of mutual repulsion, all can combine by any way, unless narration especially, all can be replaced by other equivalences or the alternative features with similar object,, unless narration especially, an embodiment in a series of equivalences of each feature or similar characteristics.

As shown in Figure 1, the big-and-middle-sized cooling stack cyclic group of the utility model is located at the bottom of cooling tower cylinder 1, is provided with inclined strut 2 above cyclic group 3; The utility model cyclic group is the inner square body with hollow pore space structure.

Adopt the aerating and cooling tower after the utility model cyclic group, due to the existence of hollow pore space structure, can save cyclic group steel concrete amount approximately 15～30%; In addition, because conventional cyclic group is square-section, be concrete in mass, adopt after this new type section, can reduce the impact of concrete temperature stress.

In addition, the cyclic group of this structure is given full play to cyclic group reinforced concrete soil bearing capacity, is meeting under bearing capacity of foundation soil, cyclic group intensity and rigidity requirement prerequisite, removes the concrete of not giving full play to its effect, be fully used in cross section, to reach, save steel concrete amount and reduce thermal stresses effect.

Embodiment 1: as shown in Figure 2, described cyclic group is the rectangular body structure that Reinforced Concrete Materials is made; The longitudinal section of described cyclic group is " returning " shape.

Embodiment 2: as shown in Figure 3, described cyclic group is the rectangular body structure that Reinforced Concrete Materials is made; The longitudinal section of described cyclic group is " work " shape.

Embodiment 3: as shown in Figure 4, described cyclic group is the rectangular body structure that Reinforced Concrete Materials is made; The longitudinal section of described cyclic group is two " work " shapes.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a big-and-middle-sized cooling stack cyclic group, is characterized in that: described cyclic group is the inner square body with hollow pore space structure.

2. big-and-middle-sized cooling stack cyclic group as claimed in claim 1, is characterized in that: described cyclic group is the rectangular body structure that Reinforced Concrete Materials is made.

3. big-and-middle-sized cooling stack cyclic group as claimed in claim 2, is characterized in that: the longitudinal section of described cyclic group is " returning " shape.

4. big-and-middle-sized cooling stack cyclic group as claimed in claim 2, is characterized in that: the longitudinal section of described cyclic group is " work " shape.

5. big-and-middle-sized cooling stack cyclic group as claimed in claim 2, is characterized in that: the longitudinal section of described cyclic group is two " work " shapes.