CN112749433A - Leakage-proof device for high-level water-collecting cooling tower and design method thereof - Google Patents
Leakage-proof device for high-level water-collecting cooling tower and design method thereof Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
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- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
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Abstract
The invention discloses a leakage-proof device of a high-order water-collecting cooling tower and a design method thereof, relating to the technical field of high-order water-collecting cooling tower structures. The leakage-proof structure provided by the invention can guide the leakage water to replace the traditional method for plugging the leakage water, the arrangement of the plugging structure is avoided during installation, the installation is more convenient, meanwhile, the influence on the rising cold air entering the cooling tower is also avoided, and the overall heat exchange efficiency of the cooling tower is ensured.
Description
Technical Field
The invention relates to the technical field of high-level water-receiving cooling tower structures, in particular to a leakage-proof device of a high-level water-receiving cooling tower and a design method thereof.
Background
A high-level water-collecting natural ventilation cooling tower (hereinafter referred to as a high-level tower) is a large-scale cooling building for a wet cooling unit of a thermal power plant and a nuclear power plant and a cooling system of the chemical industry. According to the national requirements of energy conservation, emission reduction and low-carbon economy, the high-order tower with the advantages of obvious energy conservation and noise reduction has wide application prospect, and particularly, the advantages of the high-order tower are more obvious in areas with high electricity prices and power supply shortage.
Because a tower drum of the high-level tower is in a double-deck wire annular structure, a traditional leakage-proof structure is adjacent to the tower drum, and a complex space structure causes that part of cooling water in the area can not be collected, and the leakage-proof structure is required to be arranged in the area to avoid water leakage.
The conventional leakage-proof structure adopted at present is a reverse water collecting inclined plate; in the area where the forward water collecting inclined plate and the water collecting groove can not completely collect water, a plurality of reverse water collecting inclined plates with gradient directions opposite to the forward water collecting inclined plates are arranged on the tower edge, the upper ends of the reverse water collecting inclined plates take roots on the inner wall of the tower barrel, and the lower ends of the reverse water collecting inclined plates are lapped in the water collecting groove of the forward water collecting inclined plates.
The installation difficulty of this kind of leak protection structure is great to can cause certain influence to the operation of cooling tower, specifically: the contact part of the reverse inclined plate and the tower barrel needs to be sealed, but the inner wall of the tower barrel is in a special shape, so that the sealing installation is difficult. Meanwhile, the reverse water collecting inclined plate blocks part of cold air entering the cooling tower to rise, so that water drops are directly collected without heat exchange, and the overall heat exchange efficiency of the cooling tower is influenced.
Disclosure of Invention
The invention aims to provide a leakage-proof device of a high-level water-collecting cooling tower, which is more convenient to install and has less influence on cold air entering the cooling tower and rising.
The embodiment of the invention is realized by the following steps:
a leakage-proof device of a high-order water-receiving cooling tower comprises a plurality of rows of lower plates and a plurality of water-receiving grooves, wherein the lower plates extend along the horizontal direction parallel to the diameter of the tower and are mutually parallel; each row of lower plates also comprises a suspender used for fixedly connecting the lower water-collecting inclined plate and the water-spraying filler,
the device also comprises a water collecting ditch and a plurality of rows of upper plates;
the water collecting channel is formed on the inner wall of the tower barrel in a protruding mode, surrounds the inner wall of the whole tower barrel and is communicated with the cold water tank of the cooling tower;
the number of rows of the upper plate corresponds to that of the lower plate, the corresponding upper plate and the corresponding lower plate extend in the same direction, and the upper plate is mainly formed by sequentially splicing a plurality of upper water collecting inclined plates along the extending direction of the upper plate; the upper plate is arranged above a water leakage gap formed by the corresponding row of lower plates and the inner wall of the tower barrel and covers the water leakage gap;
the upper plate and the lower plate are in a shape of inclining downwards from one side far away from the inner wall of the tower to one side close to the inner wall of the tower in the horizontal direction perpendicular to the extending direction of the upper plate and the lower plate; the side edge of the upper side of the upper plate is fixed with the suspension rods in the corresponding row of lower plates through the upper connecting structure, the side edge of the lower side of the upper plate is fixed with the inner wall of the tower barrel through the lower connecting structure, and the side edge of the lower side of the upper plate and the inner wall of the tower barrel define a through-flow channel communicated with the water collecting ditch.
Preferably, the upper connecting structure comprises a square connecting piece fixedly connected with the suspension rod and a clamping plate fixedly connected with the square connecting piece, and the clamping plate is provided with a bayonet for clamping the side edge of the upper side of the upper water collecting inclined plate.
Preferably, the lower connecting structure comprises a lap joint part and an embedded part, wherein part of the embedded part is embedded in the inner wall of the tower barrel, the part of the embedded part extending out of the inner wall of the tower barrel is fixedly connected with the lap joint part, and the side edge of the lower side of the upper water collecting inclined plate is lapped on the top of the lap joint part.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention mainly guides the leakage water in the leakage gap by arranging the water collecting ditch and the upper plate, so that the leakage water at the edge position can flow into the water collecting ditch and the cold water tank. The leakage-proof structure provided by the invention can guide the leakage water to replace the traditional method for plugging the leakage water, the arrangement of the plugging structure is avoided during installation, the installation is more convenient, meanwhile, the influence on the rising cold air entering the cooling tower is also avoided, and the overall heat exchange efficiency of the cooling tower is ensured.
The invention also provides a design method of the leakage-proof device of the high-order water-collecting cooling tower, which comprises the following steps:
s1: inputting design parameters;
s2: creating a family file according to the component category;
s3: determining the arrangement range of each upper plate and each lower plate;
s4: designing an upper water collecting inclined plate and a lower water collecting inclined plate;
s5: designing an upper connecting structure and a lower connecting structure;
s6: performing anti-leakage check, upper water collecting inclined plate check and catchment ditch flow check, and generating a design model of the anti-leakage device after the check is passed;
the design parameters comprise the elevation and the radius of the wall of the tower barrel below the elevation of the lower bracket, the radius of a water leakage line, the position of the water collecting groove, the position of the suspender, the gradient of the upper water collecting inclined plate and the size of the water collecting ditch.
Preferably, the step S2 of creating the family file according to the component type specifically includes the steps of:
s21: selecting a family template file;
s22: creating a geometry of a building element object in a family editor;
s23: adding constraints to the geometric shapes in a family editor to realize parameter control;
s24: adding family parameters to the family file;
s25: testing the family file to verify that the geometric shape of the component object can be correctly driven by the parameters;
wherein, the component category includes a tower section of thick bamboo, goes up receipts water swash plate, square connecting piece, cardboard, lower connection structure, jib.
Preferably, the step S3 of determining the arrangement range of the upper plate and the lower plate on each column specifically includes the steps of:
s31: calculating the elevation and the corresponding radius of the inner wall of the tower barrel according to the size of the water collecting ditch and the parameters of the wall of the tower barrel;
s32: calculating the radius of the drip line;
s33: calculating the arrangement range of each row of lower plates according to the position of the water receiving tank and the size of the inner wall of the tower;
s34: calculating the arrangement range of each upper plate according to the arrangement range of each row of lower plates, the radius of the water dripping line and the size of the inner wall of the tower;
preferably, the step S4 of designing the upper water collecting inclined plate and the lower water collecting inclined plate specifically includes the steps of:
s41: respectively calculating the geometric dimension information of each upper water collecting inclined plate and each lower water collecting inclined plate according to the arrangement range of each upper and lower plate and the geometric dimension of the inner wall of the tower;
s42: respectively calculating the space coordinates of each upper water collecting inclined plate and each lower water collecting inclined plate;
s43: traversing each upper water collecting inclined plate and each lower water collecting inclined plate, and determining the type of the component;
s44: respectively creating group types in the group files of the upper water-receiving inclined plate and the lower water-receiving inclined plate according to the component types obtained in the step S43, and assigning corresponding parameters in the group files according to the geometric parameters corresponding to the component types;
s45: sequentially reading the space coordinates of the upper water collecting inclined plate and the lower water collecting inclined plate, selecting the component type of the corresponding family file, and creating a component object in the project file.
Preferably, the step S5 of designing the upper connection structure and the lower connection structure specifically includes the steps of:
s51: calculating the space coordinates of the connecting pieces in each type according to the arrangement range of the upper plate and the position of the suspender;
s52: calculating the distance between two adjacent square connecting pieces according to the space coordinates of the square connecting pieces, and determining the length and the space coordinates of each clamping plate according to the distance;
s53: calculating the space coordinate of the lower connecting structure corresponding to each upper water collecting inclined plate according to the arrangement range of the upper plates, the slope ratio of each upper water collecting inclined plate and the geometric dimension of the inner wall of the tower;
s54: traversing the length of each clamping plate, and determining the type of the component;
s55: creating a family type in the cardboard family file according to the component type obtained in the step S54, and assigning values to corresponding parameters in the family file according to the geometric parameters corresponding to the component type;
s56: sequentially reading the space coordinates of the card board, selecting the component type of the corresponding family file, and creating a component object in the project file;
s57: and sequentially reading the space coordinates of the square connecting piece and the lower connecting structure, selecting a corresponding family file, and creating a component object in the project file.
Preferably, the performing of the water leakage prevention check in step S6 specifically includes the steps of:
taking the radius of the drip line as the radius of the cylinder, and creating a drip line cylinder;
checking the range of each upper and lower plate to determine whether the drip line cylinder is exceeded;
if the water content exceeds the preset range, the water leakage prevention requirement is met:
if the water leakage does not exceed the requirement, rechecking the row of lower plates and the upper plates corresponding to the lower plates, and if the water leakage does not meet the requirement, marking the lower plates and the upper plates corresponding to the lower plates with a first color and highlighting;
the calibration of the upper water collecting sloping plate in the step S6 specifically includes the steps of:
traversing each upper water collecting inclined plate, reading the length L of the upper water collecting inclined plate, and judging whether the length L is less than the maximum design length L of the upper water collecting inclined plateMAX；
If yes, the requirement is met;
if not, the upper water collecting inclined plate does not meet the design requirement, and the upper water collecting inclined plate is marked with a second color and highlighted.
Preferably, the flow verification of the water collecting channel in the step S6 specifically includes the steps of:
s61: calculating the maximum flow Q of the water collecting channel by adopting a hydraulics formula according to the width, the depth and the slope rate of the water collecting channelMAX；
S62: calculating the water collection quantity Q of unit area according to the circulating water flow and the water spraying areaAVG；
S63: reading each upper water collecting inclined plate, and sequentially marking n;
s64: sequentially calculating the water collecting area S of shadow of each water collecting inclined plate and sequentially calculating the water collecting quantity Qn＝S*QAVG；
S65: if Q in each water collecting inclined platen≤QMAXIf not, go to step S66;
s66: to Qn＞QMAXThe upper water collecting sloping plate is marked with a third color and is highlighted, and meanwhile, the width and the depth of the water collecting ditch are adjusted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic plan view of a single row of lower plates in a conventional manner;
FIG. 2 is a schematic plan view of a single row of lower plates and corresponding upper plates in example 1 of the present invention;
FIG. 3 is a schematic plan view of a plurality of rows of lower plates and corresponding upper plates according to example 1 of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2;
fig. 5 is a schematic structural view of an upper connection structure in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a lower connection structure in embodiment 1 of the present invention;
FIG. 7 is a flow chart of the design of the leakage preventing device provided by the present invention.
[ description of specific symbols ]:
10-lower plate, 11-lower water collecting inclined plate, 12-suspender, 13-water leakage gap;
20-water collecting tank;
30-collecting water channel;
40-upper plate, 41-upper water collecting inclined plate and 42-through flow channel;
50-upper connecting piece, 51-square connecting piece and 52-clamping plate;
60-lower connecting piece, 61-lap joint piece and 62-embedded piece;
70-inner wall of tower.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 2 to 6, the leakage-proof device for a high-order water-collecting cooling tower provided in this embodiment 1 includes a plurality of rows of lower plates extending in a horizontal direction parallel to the diameter of the tower and parallel to each other, and a plurality of water-collecting channels, where each row of lower plates is formed by sequentially splicing a plurality of lower water-collecting inclined plates along the extending direction thereof, and a water leakage gap is formed between the end of each lower plate and the inner wall of the tower; each row of lower plates also comprises a suspender used for fixedly connecting the lower water-collecting inclined plate and the water-spraying filler;
the device also comprises a water collecting ditch and a plurality of rows of upper plates;
the water collecting channel is formed on the inner wall of the tower barrel in a protruding mode, surrounds the inner wall of the whole tower barrel and is communicated with the cold water tank of the cooling tower;
the number of rows of the upper plate corresponds to that of the lower plate, the corresponding upper plate and the corresponding lower plate extend in the same direction, and the upper plate is mainly formed by sequentially splicing a plurality of upper water collecting inclined plates along the extending direction of the upper plate; the upper plate is arranged above a water leakage gap formed by the corresponding row of lower plates and the inner wall of the tower barrel and covers the water leakage gap;
the upper plate and the lower plate are in a shape of inclining downwards from one side far away from the inner wall of the tower to one side close to the inner wall of the tower in the horizontal direction perpendicular to the extending direction of the upper plate and the lower plate; the side edge of the upper side of the upper plate is fixed with the suspension rods in the corresponding row of lower plates through the upper connecting structure, the side edge of the lower side of the upper plate is fixed with the inner wall of the tower barrel through the lower connecting structure, and the side edge of the lower side of the upper plate and the inner wall of the tower barrel define a through-flow channel communicated with the water collecting ditch.
Referring to fig. 1, in a conventional manner, a plane layout of a single row of lower plates is schematically shown, and it can be seen that a blank water leakage gap is formed between the end of the lower plate and the inner wall of the tower under the influence of a complex space and installation conditions of the water receiving tank. In this embodiment, referring to fig. 2 to 4, the lower plate and the corresponding upper plate are schematically arranged in a plane and in a cross-sectional view, at this time, the upper plate covers the water leakage gap in a vertical direction, so as to guide the water leakage, and because the upper plate is in an inclined form, part of the water leakage occurring in the water leakage gap is guided to the through-flow channel along the inclined direction of the upper plate, and is discharged into the water collecting channel and finally enters the cold water tank.
As a preferred embodiment, in this embodiment, the upper connecting structure includes a square connecting piece fixedly connected to the suspension rod, and a clamping plate fixedly connected to the square connecting piece, and the clamping plate has a bayonet for the side edge of the upper water collecting sloping plate on the upper side to be clamped in. Referring to fig. 5, it can be seen that in the present embodiment, the square connecting member is penetrated by the suspension rod and fixed by the nut.
As a preferred embodiment, in this embodiment, the lower connection structure includes a lap joint part and an embedded part partially embedded in the inner wall of the tower tube, a portion of the embedded part extending out of the inner wall of the tower tube is fixedly connected to the lap joint part, and a side edge of the lower side of the upper water collecting inclined plate is lapped on the top of the lap joint part. Referring to fig. 6, it can be seen that, in the present embodiment, the embedded parts are embedded bolts, a part of the embedded parts extend out of the inner wall of the tower, and the overlapping parts are overlapping plates for directly overlapping the lower side edges of the upper water collecting sloping plates.
The leakage-proof structure provided by the embodiment 1 structurally avoids a plugging structure adopted in a traditional mode, and simultaneously utilizes a suspender in the existing structure, the upper side edge of the whole upper water collecting inclined plate is fixed by utilizing a clamping plate, and the lower side edge of the whole upper water collecting inclined plate is directly placed, so that adhesion is avoided, the installation is more convenient, and the maintenance is more convenient; the influence on the rising cold air entering the cooling tower is avoided, and the overall heat exchange efficiency of the cooling tower is guaranteed.
Referring to fig. 7, a method for designing a leakage-proof device of a high-level water-receiving cooling tower provided in embodiment 1 includes the steps of:
s1: inputting design parameters;
s2: creating a family file according to the component category;
s3: determining the arrangement range of each upper plate and each lower plate;
s4: designing an upper water collecting inclined plate and a lower water collecting inclined plate;
s5: designing an upper connecting structure and a lower connecting structure;
s6: performing anti-leakage check, upper water collecting inclined plate check and catchment ditch flow check, and generating a design model of the anti-leakage device after the check is passed;
the design parameters comprise the elevation and the radius of the wall of the tower barrel below the elevation of the lower bracket, the radius of a water leakage line, the position of the water collecting groove, the position of the suspender, the gradient of the upper water collecting inclined plate and the size of the water collecting ditch.
In this embodiment, the design parameters may be input through an interactive interface or a parameter file.
Further, in this embodiment, the step S2 of creating the family file according to the component category specifically includes the steps of:
s21: selecting a family template file;
s22: creating a geometry of a building element object in a family editor;
s23: adding constraints to the geometric shapes in a family editor to realize parameter control;
s24: adding family parameters to the family file;
s25: testing the family file to verify that the geometric shape of the component object can be correctly driven by the parameters;
wherein, the component category includes a tower section of thick bamboo, goes up receipts water swash plate, square connecting piece, cardboard, lower connection structure, jib.
Further, the step S3 of determining the arrangement range of the upper plate and the lower plate on each column specifically includes the steps of:
s31: calculating the elevation and the corresponding radius of the inner wall of the tower barrel according to the size of the water collecting ditch and the parameters of the wall of the tower barrel;
s32: calculating the radius of the drip line;
s33: calculating the arrangement range of each row of lower plates according to the position of the water receiving tank and the size of the inner wall of the tower;
s34: calculating the arrangement range of each upper plate according to the arrangement range of each row of lower plates, the radius of the water dripping line and the size of the inner wall of the tower;
further, the step S4 of designing the upper water collecting inclined plate and the lower water collecting inclined plate specifically includes the steps of:
s41: respectively calculating the geometric dimension information of each upper water collecting inclined plate and each lower water collecting inclined plate according to the arrangement range of each upper and lower plate and the geometric dimension of the inner wall of the tower;
s42: respectively calculating the space coordinates of each upper water collecting inclined plate and each lower water collecting inclined plate;
s43: traversing each upper water collecting inclined plate and each lower water collecting inclined plate, and determining the type of the component;
s44: respectively creating group types in the group files of the upper water-receiving inclined plate and the lower water-receiving inclined plate according to the component types obtained in the step S43, and assigning corresponding parameters in the group files according to the geometric parameters corresponding to the component types;
s45: sequentially reading the space coordinates of the upper water collecting inclined plate and the lower water collecting inclined plate, selecting the component type of the corresponding family file, and creating a component object in the project file.
The step S5 of designing the upper connection structure and the lower connection structure specifically includes the steps of:
s51: calculating the space coordinates of the connecting pieces in each type according to the arrangement range of the upper plate and the position of the suspender;
s52: calculating the distance between two adjacent square connecting pieces according to the space coordinates of the square connecting pieces, and determining the length and the space coordinates of each clamping plate according to the distance;
s53: calculating the space coordinate of the lower connecting structure corresponding to each upper water collecting inclined plate according to the arrangement range of the upper plates, the slope ratio of each upper water collecting inclined plate and the geometric dimension of the inner wall of the tower;
s54: traversing the length of each clamping plate, and determining the type of the component;
s55: creating a family type in the cardboard family file according to the component type obtained in the step S54, and assigning values to corresponding parameters in the family file according to the geometric parameters corresponding to the component type;
s56: sequentially reading the space coordinates of the card board, selecting the component type of the corresponding family file, and creating a component object in the project file;
s57: and sequentially reading the space coordinates of the square connecting piece and the lower connecting structure, selecting a corresponding family file, and creating a component object in the project file.
The checking of water leakage prevention in step S6 specifically includes the steps of:
taking the radius of the drip line as the radius of the cylinder, and creating a drip line cylinder;
checking the range of each upper and lower plate to determine whether the drip line cylinder is exceeded;
if the water content exceeds the preset range, the water leakage prevention requirement is met:
if the water leakage does not exceed the requirement, rechecking the row of lower plates and the upper plates corresponding to the lower plates, and if the water leakage does not meet the requirement, marking the lower plates and the upper plates corresponding to the lower plates with a first color and highlighting;
the calibration of the upper water collecting sloping plate in the step S6 specifically includes the steps of:
traversing each upper water collecting inclined plate, reading the length L of the upper water collecting inclined plate, and judging whether the length L is less than the maximum design length L of the upper water collecting inclined plateMAX；
If yes, the requirement is met;
if not, the upper water collecting inclined plate does not meet the design requirement, and the upper water collecting inclined plate is marked with a second color and highlighted.
The flow verification of the water collecting channel in the step S6 specifically comprises the following steps:
s61: calculating the maximum flow Q of the water collecting channel by adopting a hydraulics formula according to the width, the depth and the slope rate of the water collecting channelMAX；
S62: calculating the water collection quantity Q of unit area according to the circulating water flow and the water spraying areaAVG；
S63: reading each upper water collecting inclined plate, and sequentially marking n;
s64: sequentially calculating the water collecting area S of shadow of each water collecting inclined plate and sequentially calculating the water collecting quantity Qn＝S*QAVG；
S65: if Q in each water collecting inclined platen≤QMAXIf not, go to step S66;
s66: to Qn＞QMAXThe upper water collecting sloping plate is marked with a third color and is highlighted, and meanwhile, the width and the depth of the water collecting ditch are adjusted.
Meanwhile, the design method adopted by the embodiment further comprises the following steps:
s7: generating a drawing and material report;
s8: and generating an animation video.
Wherein, regarding step S7, the method specifically includes the steps of:
s71: automatically adding a section at a designated position of a drawing to form a section diagram;
s72: automatically adding label and text description information in the section drawing to form a construction installation drawing;
s73: creating a material statistics report, wherein the material statistics report comprises the type, the number and the size information of each component category, and generating a material statistics summary table;
s74: and checking and confirming the information such as numbers, characters and the like in the drawing to finish the design.
The drawing also comprises an upper collecting inclined plate plane layout drawing, an upper connecting structure, a lower connecting structure plane layout drawing, a lower collecting inclined plate plane layout drawing and the like. In this embodiment, the above methods are all implemented based on BIM three-dimensional modeling performed by Revit software of Autodesk corporation.
Regarding the generated video animation of step S8, in the present embodiment, the generating video animation of step S8 includes the following processes:
s81, exporting the full-tower leakage-proof device model created in the step S6, and generating a nwc format file which can be identified by Naviswerks software;
s82: opening the file in Navisvarks software to make an animation video;
the animation video comprises work progress simulation, construction and installation procedure simulation, roaming animation and the like, and design results are output visually and efficiently.
The design method provided by the embodiment has the following advantages:
(1) the design input data is less, the intermediate data program required by design is automatically calculated and is shared and transmitted in the interior, the workload of manual reading and input of engineers is reduced, the accuracy is ensured, and errors are avoided;
(2) the calculation and the design are automatically carried out according to the arrangement rule, so that the design efficiency is improved;
(3) automatic checking is carried out, and the workload of manual checking is reduced;
(4) the design result is a three-dimensional model, three-dimensional real-time display is realized, the arrangement scheme of the leakage-proof device can be visually and clearly checked at a glance, and the collision problem and the installation problem can be found in time;
(5) a three-dimensional model, a material report and a construction drawing are automatically generated, and the working efficiency is improved;
(6) automatic construction progress simulation, construction and installation procedure simulation, roaming animation and the like are visual and efficient;
(7) the space coordinate of the lower connecting structure is automatically calculated, embedded parts can be synchronously embedded during concrete pouring of the tower drum, the positioning is accurate, and compared with the traditional on-site expansion bolt, the installation is convenient, firm and difficult to rust;
(8) the dimension information of each water collecting inclined plate is output by the material statistics table, the material statistics table can be processed in a factory, serial numbers are pasted, the material statistics table can be directly hoisted on site, the site cutting is avoided, the processing precision is high, and the installation speed is high.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A leakage-proof device of a high-order water-receiving cooling tower comprises a plurality of rows of lower plates and a plurality of water-receiving grooves, wherein the lower plates extend along the horizontal direction parallel to the diameter of the tower and are mutually parallel; still including being used for its lower jib of receiving water swash plate and trickle filler of fixed connection, its characterized in that in every row of hypoplastron:
the device also comprises a water collecting ditch and a plurality of rows of upper plates;
the water collecting channel is formed on the inner wall of the tower barrel in a protruding mode, surrounds the inner wall of the whole tower barrel and is communicated with the cold water tank of the cooling tower;
the number of rows of the upper plate corresponds to that of the lower plate, the corresponding upper plate and the corresponding lower plate extend in the same direction, and the upper plate is mainly formed by sequentially splicing a plurality of upper water collecting inclined plates along the extending direction of the upper plate; the upper plate is arranged above a water leakage gap formed by the corresponding row of lower plates and the inner wall of the tower barrel and covers the water leakage gap;
the upper plate and the lower plate are in a shape of inclining downwards from one side far away from the inner wall of the tower to one side close to the inner wall of the tower in the horizontal direction perpendicular to the extending direction of the upper plate and the lower plate; the side edge of the upper side of the upper plate is fixed with the suspension rods in the corresponding row of lower plates through the upper connecting structure, the side edge of the lower side of the upper plate is fixed with the inner wall of the tower barrel through the lower connecting structure, and the side edge of the lower side of the upper plate and the inner wall of the tower barrel define a through-flow channel communicated with the water collecting ditch.
2. The leakage-proof device of the high-order water-collecting cooling tower as claimed in claim 1, wherein the upper connecting structure comprises a square connecting piece fixedly connected with the suspension rod, and a clamping plate fixedly connected with the square connecting piece, and the clamping plate is provided with a bayonet for clamping the side edge of the upper side of the upper water-collecting inclined plate.
3. The leakage-proof device for the high-position water-collecting cooling tower as claimed in claim 2, wherein the lower connecting structure comprises a lap joint part and an embedded part partially embedded in the inner wall of the tower barrel, the part of the embedded part extending out of the inner wall of the tower barrel is fixedly connected with the lap joint part, and the side edge of the lower side of the upper water-collecting inclined plate is lapped on the top of the lap joint part.
4. A design method of the leakage-proof device of the high-order water-collecting cooling tower as claimed in claim 3, characterized by comprising the steps of:
s1: inputting design parameters;
s2: creating a family file according to the component category;
s3: determining the arrangement range of each upper plate and each lower plate;
s4: designing an upper water collecting inclined plate and a lower water collecting inclined plate;
s5: designing an upper connecting structure and a lower connecting structure;
s6: performing anti-leakage check, upper water collecting inclined plate check and catchment ditch flow check, and generating a design model of the anti-leakage device after the check is passed;
the design parameters comprise the elevation and the radius of the wall of the tower barrel below the elevation of the lower bracket, the radius of a water leakage line, the position of the water collecting groove, the position of the suspender, the gradient of the upper water collecting inclined plate and the size of the water collecting ditch.
5. The method of designing a leakage preventing structure according to claim 4,
the step S2 of creating a family file according to the component type specifically includes the steps of:
s21: selecting a family template file;
s22: creating a geometry of a building element object in a family editor;
s23: adding constraints to the geometric shapes in a family editor to realize parameter control;
s24: adding family parameters to the family file;
s25: testing the family file to verify that the geometric shape of the component object can be correctly driven by the parameters;
wherein, the component category includes a tower section of thick bamboo, goes up receipts water swash plate, square connecting piece, cardboard, lower connection structure, jib.
6. The method of designing a leakage preventing structure according to claim 5,
the step S3 of determining the arrangement range of the upper plate and the lower plate on each column specifically includes the steps of:
s31: calculating the elevation and the corresponding radius of the inner wall of the tower barrel according to the size of the water collecting ditch and the parameters of the wall of the tower barrel;
s32: calculating the radius of the drip line;
s33: calculating the arrangement range of each row of lower plates according to the position of the water receiving tank and the size of the inner wall of the tower;
s34: and calculating the arrangement range of the upper plate of each row according to the arrangement range of the lower plate of each row, the radius of the water dripping line and the size of the inner wall of the tower barrel.
7. The method of designing a leakage preventing structure according to claim 5,
step S4 is to design an upper water collecting inclined plate and a lower water collecting inclined plate, and specifically includes the steps of:
s41: respectively calculating the geometric dimension information of each upper water collecting inclined plate and each lower water collecting inclined plate according to the arrangement range of each upper and lower plate and the geometric dimension of the inner wall of the tower;
s42: respectively calculating the space coordinates of each upper water collecting inclined plate and each lower water collecting inclined plate;
s43: traversing each upper water collecting inclined plate and each lower water collecting inclined plate, and determining the type of the component;
s44: respectively creating group types in the group files of the upper water-receiving inclined plate and the lower water-receiving inclined plate according to the component types obtained in the step S43, and assigning corresponding parameters in the group files according to the geometric parameters corresponding to the component types;
s45: sequentially reading the space coordinates of the upper water collecting inclined plate and the lower water collecting inclined plate, selecting the component type of the corresponding family file, and creating a component object in the project file.
8. The method of designing a leakage preventing structure according to claim 5,
the step S5 of designing the upper connection structure and the lower connection structure specifically includes the steps of:
s51: calculating the space coordinates of the connecting pieces in each type according to the arrangement range of the upper plate and the position of the suspender;
s52: calculating the distance between two adjacent square connecting pieces according to the space coordinates of the square connecting pieces, and determining the length and the space coordinates of each clamping plate according to the distance;
s53: calculating the space coordinate of the lower connecting structure corresponding to each upper water collecting inclined plate according to the arrangement range of the upper plates, the slope ratio of each upper water collecting inclined plate and the geometric dimension of the inner wall of the tower;
s54: traversing the length of each clamping plate, and determining the type of the component;
s55: creating a family type in the cardboard family file according to the component type obtained in the step S54, and assigning values to corresponding parameters in the family file according to the geometric parameters corresponding to the component type;
s56: sequentially reading the space coordinates of the card board, selecting the component type of the corresponding family file, and creating a component object in the project file;
s57: and sequentially reading the space coordinates of the square connecting piece and the lower connecting structure, selecting a corresponding family file, and creating a component object in the project file.
9. The method of designing a leakage preventing structure according to claim 5,
the checking of water leakage prevention in step S6 specifically includes the steps of:
taking the radius of the drip line as the radius of the cylinder, and creating a drip line cylinder;
checking the range of each upper and lower plate to determine whether the drip line cylinder is exceeded;
if the water content exceeds the preset range, the water leakage prevention requirement is met:
if the water leakage does not exceed the requirement, rechecking the row of lower plates and the upper plates corresponding to the lower plates, and if the water leakage does not meet the requirement, marking the lower plates and the upper plates corresponding to the lower plates with a first color and highlighting;
the calibration of the upper water collecting sloping plate in the step S6 specifically includes the steps of:
traversing each upper water collecting inclined plate, reading the length L of the upper water collecting inclined plate, and judging whether the length L is less than the maximum design length L of the upper water collecting inclined plateMAX；
If yes, the requirement is met;
if not, the upper water collecting inclined plate does not meet the design requirement, and the upper water collecting inclined plate is marked with a second color and highlighted.
10. The method for designing a leakage preventing structure according to claim 5, wherein the flow verification of the water collecting trench in the step S6 specifically includes the steps of:
s61: calculating the maximum flow Q of the water collecting channel by adopting a hydraulics formula according to the width, the depth and the slope rate of the water collecting channelMAX；
S62: calculating the water collection quantity Q of unit area according to the circulating water flow and the water spraying areaAVG；
S63: reading each upper water collecting inclined plate, and sequentially marking n;
s64: calculate in turnThe water collecting area S of the shadow of each water collecting inclined plate is calculated, and the water collecting quantity Q of the shadow is calculated in sequencen＝S*QAVG；
S65: if Q in each water collecting inclined platen≤QMAXIf not, go to step S66;
s66: to Qn＞QMAXThe upper water collecting sloping plate is marked with a third color and is highlighted, and meanwhile, the width and the depth of the water collecting ditch are adjusted.
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