CN111677102A - Spanning molten salt pump supporting steel platform and molten salt pump supporting method - Google Patents
Spanning molten salt pump supporting steel platform and molten salt pump supporting method Download PDFInfo
- Publication number
- CN111677102A CN111677102A CN202010506482.3A CN202010506482A CN111677102A CN 111677102 A CN111677102 A CN 111677102A CN 202010506482 A CN202010506482 A CN 202010506482A CN 111677102 A CN111677102 A CN 111677102A
- Authority
- CN
- China
- Prior art keywords
- steel
- molten salt
- salt pump
- girder
- dimensional frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a crossing type molten salt pump supporting steel platform and a molten salt pump supporting method, which comprise a three-dimensional frame, a crossing truss structure, an equipment platform layer and a middle transition layer, wherein the three-dimensional frame and the crossing truss structure are rigidly connected through a beam, the crossing truss structure crosses over the top of a molten salt storage tank, the molten salt storage tank is arranged in the middle transition layer, the space between the three-dimensional frame and the crossing truss structure is the equipment platform layer, the equipment platform layer comprises a special-shaped support beam and a horizontal supporting system, the special-shaped support beam comprises a transverse support beam and a longitudinal support beam, the transverse support beam is arranged between the three-dimensional frame and the crossing truss structure, the longitudinal support beam is arranged between the transverse support beams, the middle transition layer is arranged below the equipment platform layer, and the special-shaped support beam is fixedly provided with a molten salt pump base. The invention meets the requirements of vibration, bearing and deformation of a plurality of molten salt pumps at high rotating speed by ensuring the rigidity and bearing capacity of the integral supporting structure in the vertical and horizontal directions and transmitting all internal forces to the foundation.
Description
Technical Field
The invention belongs to the technical field of structures for supporting large vertical long-shaft rotary pumps, and particularly relates to a spanning molten salt pump supporting steel platform and a molten salt pump supporting method.
Background
Along with the rapid development and application of new energy technology in China, particularly a heat storage and exchange area in a tower type photo-thermal power station, an economic and reliable molten salt pump supporting structure is urgently needed by matching with a molten salt storage tank. At present, the molten salt is used as a medium, and the design aspect of a vertical molten salt pump supporting platform with large flow and high lift still has difficulties and disadvantages:
firstly, a large-flow high-lift vertical molten salt pump puts forward a strict rigidity requirement on a supporting structure of the pump: 1) the integral supporting structure needs to meet the requirements of translational rigidity (kN/m) and rotational rigidity (kN.m/rad) matrixes in the direction X, Y, Z; 2) when the molten salt pump equipment is installed and leveled, the supporting position of the pump support is required to be vertically allowed to be displaced by 0.1mm, and the horizontally allowed displacement is 0.04 mm.
Secondly, the bearing structure that comes into service at home and abroad is overhanging molten salt pump supporting platform, and this kind of supporting platform cantilever distance is long, and in order to satisfy the rigidity requirement, the platform lower part is mostly reinforced concrete shear force wall, and space support steel structure system is adopted on upper portion, leads to the construction complicacy, and engineering cost is expensive.
Disclosure of Invention
The invention aims to provide a spanning molten salt pump supporting steel platform, which overcomes the technical problems in the prior art and meets the high-power generation index of a photo-thermal power station.
The invention also aims to provide a molten salt pump supporting method which has high vertical and horizontal bearing capacity and good effect of supporting the rotating shaft type pump equipment.
Therefore, the technical scheme provided by the invention is as follows:
a crossing type molten salt pump supporting steel platform comprises a three-dimensional frame, a crossing truss structure, an equipment platform layer and an intermediate transition layer, wherein the three-dimensional frame and the crossing truss structure are rigidly connected through a beam, the crossing truss structure crosses the top of a molten salt storage tank, the molten salt storage tank is arranged in the intermediate transition layer, the space between the three-dimensional frame and the crossing truss structure is the equipment platform layer, and the intermediate transition layer is arranged below the equipment platform layer;
the device platform layer comprises a special-shaped support beam and a horizontal supporting system, the special-shaped support beam comprises a transverse support beam and a longitudinal support beam, the transverse support beam is arranged between the three-dimensional frame and the crossing truss structure, the longitudinal support beam is arranged between the transverse support beams, and the special-shaped support beam is fixedly provided with a molten salt pump base.
The three-dimensional frame comprises longitudinal beams, transverse beams and a first steel-concrete combined structure column, the crossing truss structure comprises a truss beam and a second steel-concrete combined structure column, and the truss beam is rigidly connected with the second steel-concrete combined structure column; the truss girder comprises an upper chord steel girder, a lower chord steel girder and a web member, the web member is arranged between the upper chord steel girder and the lower chord steel girder, and the lower chord steel girder is rigidly connected with the transverse support beam.
The horizontal supporting system comprises a first horizontal supporting member and a second horizontal supporting member, the first horizontal supporting member is arranged between cross beams of the three-dimensional frame, the second horizontal supporting member is arranged between the special-shaped support beams, and the arrangement density of the second horizontal supporting member is greater than that of the first horizontal supporting member.
The special-shaped support beam comprises I-shaped steel and oblique stiffening ribs, an upper flange end plate is formed by welding an upper flange end plate of the I-shaped steel, and the oblique stiffening ribs are respectively welded with the upper flange end plate and a lower flange.
Vertical supporting members are arranged between every two adjacent steel-concrete combined structure columns I at two ends of the three-dimensional frame and between every two adjacent steel-concrete combined structure columns II crossing the truss structure and are in a bidirectional crossed shape, and the vertical supporting members between the steel-concrete combined structure columns I in the middle of the three-dimensional frame are in a unidirectional splayed shape.
The steel-concrete combined structure column comprises a square steel pipe and concrete, wherein the concrete is arranged on the periphery of the lower part of the square steel pipe, and the square steel pipe is rigidly connected with the transverse support beam.
The rigidity of the section of the lower chord steel beam is 2-3 times of that of the section of the upper chord steel beam, and the arrangement position of the web member corresponds to one position of the steel-concrete composite structure column of the three-dimensional frame.
The rigidity of the cross section of the vertical supporting member adopting the bidirectional crossed shape is 1.5-2 times that of the vertical supporting member adopting the unidirectional splayed shape.
And the first steel-concrete composite structural column at the end part of the three-dimensional frame and the second steel-concrete composite structural column crossing the end part of the truss structure are obliquely pulled and connected through the diagonal draw bar.
A molten salt pump supporting method comprises the steps of adopting a crossing molten salt pump supporting steel platform, rigidly connecting two ends of a truss girder lower chord steel girder of a crossing truss structure with a longitudinal girder of a three-dimensional frame, arranging a transverse support beam between the middle of the truss girder and the longitudinal girder of the three-dimensional frame, arranging a longitudinal support beam between the transverse support beams to form an equipment platform layer, installing a molten salt pump base on a special-shaped support beam, and bearing the vertical bearing capacity and the horizontal bearing capacity of a molten salt pump to realize the support of the molten salt pump.
The invention has the beneficial effects that:
the crossing type molten salt pump supporting steel platform provided by the invention is rigidly connected through the main body frame and the crossing type truss structure, ensures the rigidity and the bearing capacity of the integral supporting structure in the vertical and horizontal directions, transmits all internal forces to the foundation, and meets the requirements of vibration, bearing and deformation of a plurality of molten salt pumps at high rotating speed.
The invention relates to a principle of arranging horizontal supporting members in a horizontal supporting system arranged on an equipment platform layer, which comprises the following steps: the arrangement of 'small encryption triangle' is adopted in the area close to the support; the principle of 'obliquely crossing large triangle' arrangement is adopted for the far-away supporting area. The vertical supporting members between the first steel-concrete composite structure columns at the two ends of the main body frame are in a bidirectional crossed shape, the vertical supporting members between the first steel-concrete composite structure columns at the middle part are in a one-way splayed shape, and the section rigidity of the vertical supporting members at the end parts is 1.5-2.0 times that of the supporting rod members at the middle part. The arrangement scheme of the horizontal and vertical support system can obviously improve the torsional rigidity in the platform plane and has the advantages of strong integrity and high economical efficiency.
The special-shaped support beam is composed of welding I-shaped steel, an upper flange end plate and an oblique stiffening rib, and directly bears a base of the molten salt pump.
The steel-concrete combined structural column II at the end part of the spanning type truss structure is obliquely pulled and connected with the steel-concrete combined structural column I at the end part of the three-dimensional frame, so that the space integrity of the main body frame is enhanced.
The cantilever type molten salt pump support platform breaks through the adverse factors of the conventional cantilever type support platform, and well meets the requirements of the molten salt pump on the vertical rigidity, the horizontal rigidity and the torsional rigidity of the support structure. The platform form is handsome in appearance, simple and convenient, and 90% adoption steel of component material is convenient for purchase and construction, compares other shape bearing structure forms and can obviously shorten construction period, has reduced engineering cost. The crossing type supporting platform has strong practicability in the field of photo-thermal power station engineering at home and abroad, and has wide application prospect in the field of new energy heat storage and heat storage.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a plan view of one embodiment of the present invention;
FIG. 2 is a plan view of one embodiment of an intermediate transition layer of the present invention;
FIG. 3 is an elevational view of one embodiment of the body frame of the present invention;
FIG. 4 is an elevational view of one embodiment of the present invention spanning a truss beam structure;
FIG. 5 is a plan view of one embodiment of the device platform layer of the present invention;
fig. 6 is a schematic structural view of the special-shaped support beam.
In the figure:
description of reference numerals:
1. a first steel-concrete combined structural column; 2. a first horizontal supporting member; 3. a special-shaped support beam; 4. a lower chord steel beam; 5. a web member; 6. a vertical support member; 7. a molten salt storage tank; 8. a square steel pipe; 9. welding I-shaped steel; 10. an upper flange end plate; 11. oblique stiffening ribs; 12. a second steel-concrete composite structure column; 13. a second horizontal support member; 14. and a diagonal draw bar.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the present invention, the upper, lower, left and right sides in the drawings are regarded as the upper, lower, left and right sides of the straddle molten salt pump supporting steel platform described in the present specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the embodiment provides a crossing type molten salt pump supporting steel platform which comprises a three-dimensional frame, a crossing truss structure, an equipment platform layer and a middle transition layer, wherein the three-dimensional frame and the crossing truss structure are rigidly connected through a beam, the crossing truss structure crosses over the top of a molten salt storage tank 7, the space between the three-dimensional frame and the crossing truss structure is the equipment platform layer, and the middle transition layer is arranged below the equipment platform layer;
the equipment platform layer includes special-shaped support beam 3 and horizontal braced system, special-shaped support beam 3 includes horizontal support beam and vertical support beam, horizontal support beam locates between space frame and the strideing truss structure, vertical support beam locates between the horizontal support beam, molten salt storage tank 7 has been placed in the middle transition layer, the molten salt pump base has set firmly on the special-shaped support beam 3. As shown in fig. 1 and 2.
The crossing type molten salt pump supporting steel platform provided by the invention is rigidly connected through the main body frame and the crossing type truss structure, ensures the rigidity and the bearing capacity of the integral supporting structure in the vertical and horizontal directions, transmits all internal forces to the foundation, and meets the requirements of vibration, bearing and deformation of a plurality of molten salt pumps at high rotating speed.
Example 2:
on the basis of the embodiment 1, the embodiment provides a spanning molten salt pump supporting steel platform, the three-dimensional frame comprises longitudinal beams, transverse beams and a first steel-concrete composite structural column 1, the spanning truss structure comprises a truss beam and a second steel-concrete composite structural column 12, and the truss beam is rigidly connected with the second steel-concrete composite structural column 12; the truss girder comprises an upper chord steel girder, a lower chord steel girder 4 and a web member 5, wherein the web member 5 is arranged between the upper chord steel girder and the lower chord steel girder 4, and the lower chord steel girder 4 is rigidly connected with the transverse support beam.
The rigidity and the bearing capacity of the integral supporting structure in the vertical and horizontal directions are guaranteed through the first steel-concrete composite structural column 1 and the second steel-concrete composite structural column 12, and all internal forces are transmitted to the foundation.
Example 3:
on the basis of embodiment 1, the present embodiment provides a spanning molten salt pump supporting steel platform, where the horizontal supporting system includes a first horizontal supporting member 2 and a second horizontal supporting member 13, the first horizontal supporting member 2 is disposed between cross beams of a space frame, the second horizontal supporting member 13 is disposed between special-shaped support beams 3, and the arrangement density of the second horizontal supporting member 13 is greater than that of the first horizontal supporting member 2.
As shown in fig. 1, the second horizontal support member 13 disposed on the device platform layer is arranged in a "small encryption triangle", and the first horizontal support member 2 disposed on the three-dimensional frame is arranged in a "large oblique-span triangle". The torsional rigidity in the platform plane can be obviously improved, and the platform has the advantages of strong integrity and high economical efficiency.
The cross sections of the first horizontal supporting member 2 and the second horizontal supporting member 13 are angle steel and H-shaped steel, and the end parts of the first horizontal supporting member and the second horizontal supporting member are hinged to the cross beam.
Example 4:
on the basis of embodiment 1, this embodiment provides a striding type molten salt pump supporting steel platform, the special-shaped support beam 3 includes i-steel and oblique stiffening rib 11, the upper flange welding end plate of i-steel forms upper flange end plate 10, oblique stiffening rib 11 respectively with upper flange end plate 10, lower flange welding.
In this embodiment, the special-shaped support beam 3 is a special-shaped support beam, as shown in fig. 6, and is composed of a welding i-steel 9, an upper flange end plate 10 and an oblique stiffening rib 11, and directly bears the base of the molten salt pump. One end of the special-shaped support beam (transverse support beam) is rigidly connected with the square steel pipe 8, the other end of the special-shaped support beam is rigidly connected with the lower chord steel beam 4 of the truss girder, and the middle of the special-shaped support beam is not interrupted. Fig. 5 shows the equipment platform layer consisting of the special-shaped support beams 3 and the horizontal support system.
Example 5:
on the basis of embodiment 2, this embodiment provides a striding type molten salt pump supporting steel platform, vertical supporting members 6 are respectively arranged between two adjacent steel-concrete composite structure columns 1 at two ends of the three-dimensional frame and between two adjacent steel-concrete composite structure columns 12 of the striding truss structure, and are respectively in a bidirectional crossing shape, and the vertical supporting members 6 between the steel-concrete composite structure columns 1 in the middle of the three-dimensional frame are in a unidirectional splayed shape.
As shown in fig. 3 and 4, the vertical support members 6 are disposed between adjacent steel columns, and the general arrangement principle is as follows: the two ends of the three-dimensional frame are in a bidirectional crossed shape, and the middle part of the three-dimensional frame is in a unidirectional splayed shape. The torsional rigidity in the platform plane can be obviously improved, and the platform has the advantages of strong integrity and high economical efficiency.
Example 6:
on the basis of the embodiment 2, the embodiment provides a spanning molten salt pump supporting steel platform, and the first steel-concrete combined structural column 1 comprises a square steel pipe 8 and concrete, and the concrete is arranged on the periphery of the lower part of the square steel pipe 8.
As shown in fig. 3, the first steel-concrete composite structural column 1 is arranged with a height of 4.0 m or less at the bottom and is composed of peripheral concrete and square steel pipes 8, so that the rigidity and bearing capacity of the integral supporting structure in the vertical and horizontal directions are ensured, and all internal forces are transmitted to the foundation. The square steel pipe 8 is arranged at a height of more than 4.0 meters for supporting.
As shown in fig. 4, the second steel-concrete composite structural column 12 is only arranged below 4.0 m in height from the bottom, has the same structure as the first steel-concrete composite structural column 1, and consists of peripheral concrete and square steel pipes 8, so that the rigidity and the bearing capacity of the integral supporting structure in the vertical and horizontal directions are ensured, and all internal forces are transmitted to the foundation. The square steel pipe 8 is arranged at a height of more than 4.0 meters for supporting.
Example 7:
on the basis of the embodiment 2, the embodiment provides a spanning molten salt pump supporting steel platform, the section rigidity of the lower chord steel beam 4 is 2-3 times of that of the upper chord steel beam, and the arrangement position of the web members 5 corresponds to the position of the first steel-concrete composite structural column 1 of the space frame.
As shown in fig. 4, the crossing type truss structure comprises a truss girder and two steel-concrete composite structural columns 12 at two sides, wherein the steel truss girder crosses over the upper part of the roof of the molten salt storage tank 7, and the two ends of the steel truss girder are supported by the two steel-concrete composite structural columns 12. The upper chord steel beam and the lower chord steel beam 4 of the truss girder are both made of welded I-steel, the web members 5 are made of section steel sections, the section rigidity of the lower chord steel beam 4 is 2.5 times of that of the upper chord steel beam, and the web members 5 are arranged to correspond to the 8 columns of the square steel pipes of the three-dimensional frame. The crossing truss structure should be obliquely tied with the main structure to enhance the space integrity of the frame.
Example 8:
on the basis of embodiment 5, the embodiment provides a spanning molten salt pump supporting steel platform, and the rigidity of the cross section of the vertical supporting member 6 adopting the bidirectional crossing shape is 1.5-2 times that of the vertical supporting member 6 adopting the unidirectional splayed shape.
The arrangement scheme of the vertical supporting member 6 can obviously improve the torsional rigidity in the platform plane and has the advantages of strong integrity and high economical efficiency.
Example 9:
on the basis of embodiment 2, this embodiment provides a spanning molten salt pump supporting steel platform, and the steel-concrete composite structural column 1 at the end of the space frame and the steel-concrete composite structural column 12 at the end of the spanning truss structure are obliquely tied by a diagonal draw bar 14.
The crossing truss structure and the three-dimensional frame are obliquely tied, so that the space integrity of the frame is enhanced.
Example 10:
the embodiment provides a molten salt pump supporting method, which comprises the steps of adopting a crossing molten salt pump supporting steel platform, rigidly connecting two ends of a truss girder lower chord steel beam 4 of a crossing truss structure with a longitudinal beam of a three-dimensional frame, arranging a transverse support beam between the middle part of the truss girder and the longitudinal beam of the three-dimensional frame, arranging a longitudinal support beam between the transverse support beams to form an equipment platform layer, installing a molten salt pump base on a special-shaped support beam 3, and bearing the vertical bearing capacity and the horizontal bearing capacity of the molten salt pump to realize the support of the molten salt pump.
The invention well solves the difficult problems of long-term heat storage and heat accumulation of the photo-thermal power station by matching with the large-diameter molten salt storage tank 7. The steel frame platform of the present invention comprises: the frame platform of the structure form meets the requirements of strength, deformation and shock absorption of a large-flow and high-lift molten salt pump supporting structure, and realizes the functions of high efficiency and stable operation of the cold and hot molten salt pumps in the tower type photo-thermal power station. The crossing platform can solve the problems of resonance, rigidity and the like generated when a plurality of molten salt pumps operate, is also suitable for supporting structures of other vertical long-shaft pumps, and has certain economical efficiency and practicability.
The invention relates to a spanning molten salt pump supporting steel platform which is applied to a Qinghai-harmonization 50MW photo-thermal power generation project (the first photo-thermal demonstration project of China). A novel crossing truss girder is provided reasonably by means of a raft foundation of a molten salt tank, adverse factors of a conventional cantilever type supporting platform are broken through, and the requirements of a molten salt pump on the vertical rigidity, the horizontal rigidity and the torsional rigidity of a supporting structure of the molten salt pump are well met. The platform of the invention has beautiful and simple shape, 90% of the material of the component adopts steel, which is convenient for purchasing and construction, and compared with other support structure forms, the platform can obviously shorten the construction period and reduce the construction cost. The crossing type supporting platform has strong practicability in the field of photo-thermal power station engineering at home and abroad, and has wide application prospect in the field of new energy heat storage and heat storage.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. The utility model provides a striding type molten salt pump supporting steel platform which characterized in that: the three-dimensional frame and the crossing truss structure are rigidly connected through a beam, the crossing truss structure crosses the top of the fused salt storage tank (7), the fused salt storage tank (7) is arranged in the middle transition layer, the space between the three-dimensional frame and the crossing truss structure is the equipment platform layer, and the middle transition layer is arranged below the equipment platform layer;
the device platform layer comprises special-shaped support beams (3) and a horizontal supporting system, the special-shaped support beams (3) comprise transverse support beams and longitudinal support beams, the transverse support beams are arranged between the three-dimensional frame and the crossing truss structure, the longitudinal support beams are arranged between the transverse support beams, and a molten salt pump base is fixedly arranged on the special-shaped support beams (3).
2. The straddle-type molten salt pump support steel platform of claim 1, wherein: the three-dimensional frame comprises longitudinal beams, transverse beams and a first steel-concrete composite structure column (1), the spanning truss structure comprises a truss beam and a second steel-concrete composite structure column (12), and the truss beam is rigidly connected with the second steel-concrete composite structure column (12); the truss girder comprises an upper chord steel girder, a lower chord steel girder (4) and a web member (5), wherein the web member (5) is arranged between the upper chord steel girder and the lower chord steel girder (4), and the lower chord steel girder (4) is rigidly connected with the transverse support girder.
3. The straddle-type molten salt pump support steel platform of claim 1, wherein: the horizontal supporting system comprises a first horizontal supporting member (2) and a second horizontal supporting member (13), the first horizontal supporting member (2) is arranged between cross beams of the three-dimensional frame, the second horizontal supporting member (13) is arranged between the special-shaped supporting beams (3), and the arrangement density of the second horizontal supporting member (13) is greater than that of the first horizontal supporting member (2).
4. The straddle-type molten salt pump support steel platform of claim 1, wherein: the special-shaped support beam (3) comprises I-shaped steel and oblique stiffening ribs (11), an upper flange end plate (10) is formed by an upper flange welding end plate of the I-shaped steel, and the oblique stiffening ribs (11) are respectively welded with the upper flange end plate (10) and a lower flange.
5. The straddle-type molten salt pump support steel platform of claim 2, wherein: vertical supporting members (6) are arranged between every two adjacent steel-concrete combined structure columns I (1) at the two ends of the three-dimensional frame and between every two adjacent steel-concrete combined structure columns II (12) crossing the truss structure and are in a bidirectional crossed shape, and the vertical supporting members (6) between the steel-concrete combined structure columns I (1) in the middle of the three-dimensional frame are in a unidirectional splayed shape.
6. The straddle-type molten salt pump support steel platform of claim 2, wherein: the first steel-concrete composite structure column (1) comprises a square steel pipe (8) and concrete, the concrete is arranged on the periphery of the lower portion of the square steel pipe (8), and the square steel pipe (8) is rigidly connected with a transverse support beam.
7. The straddle-type molten salt pump support steel platform of claim 2, wherein: the rigidity of the section of the lower chord steel beam (4) is 2-3 times of that of the section of the upper chord steel beam, and the arrangement position of the web member (5) corresponds to the position of the first steel-concrete composite structure column (1) of the three-dimensional frame.
8. The straddle-type molten salt pump support steel platform of claim 5, wherein: the rigidity of the cross section of the vertical supporting member (6) adopting the bidirectional crossed shape is 1.5-2 times that of the vertical supporting member (6) adopting the unidirectional splayed shape.
9. The straddle-type molten salt pump support steel platform of claim 2, wherein: the steel-concrete composite structure column I (1) at the end part of the three-dimensional frame and the steel-concrete composite structure column II (12) crossing the end part of the truss structure are obliquely tied through an inclined pull rod (14).
10. A molten salt pump supporting method using the straddle-type molten salt pump supporting steel platform according to claim 4, characterized in that: after two ends of a truss girder lower chord steel girder (4) crossing a truss structure are rigidly connected with a longitudinal girder of a three-dimensional frame, a transverse support girder is arranged between the middle part of the truss girder and the longitudinal girder of the three-dimensional frame, then a longitudinal support girder is arranged between the transverse support girders to form an equipment platform layer, a molten salt pump base is arranged on a special-shaped support girder (3) to bear the vertical bearing capacity and the horizontal bearing capacity of a molten salt pump, and the support of the molten salt pump is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506482.3A CN111677102A (en) | 2020-06-05 | 2020-06-05 | Spanning molten salt pump supporting steel platform and molten salt pump supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506482.3A CN111677102A (en) | 2020-06-05 | 2020-06-05 | Spanning molten salt pump supporting steel platform and molten salt pump supporting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111677102A true CN111677102A (en) | 2020-09-18 |
Family
ID=72435028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010506482.3A Pending CN111677102A (en) | 2020-06-05 | 2020-06-05 | Spanning molten salt pump supporting steel platform and molten salt pump supporting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111677102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899083A (en) * | 2021-09-18 | 2022-01-07 | 同济大学 | Photo-thermal power generation system comprising giant frame inclined strut structure |
-
2020
- 2020-06-05 CN CN202010506482.3A patent/CN111677102A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899083A (en) * | 2021-09-18 | 2022-01-07 | 同济大学 | Photo-thermal power generation system comprising giant frame inclined strut structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108049633A (en) | A kind of precast concrete concrete frame joint construction method | |
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN202139694U (en) | Connecting node of compound concrete-filled tubular column and steel beam | |
| CN106836558A (en) | A kind of buckling-restrained steel plate wall Lateral Resistant System of structural construction function integration | |
| CN101818478A (en) | Connection structure for concrete-filled circular steel tubular pier column and concrete cover beam | |
| CN106381886B (en) | A kind of partial precast assembly steel concrete combination underground pipe gallery | |
| CN213981055U (en) | Prestressed hollow sandwich concrete-filled steel tube lattice type hybrid tower | |
| CN106368348A (en) | Overlapped combined shear wall with double-phase stress characteristic | |
| CN112177857A (en) | Prestressed hollow sandwich concrete-filled steel tube lattice type hybrid tower and production and installation method thereof | |
| CN102261043B (en) | Assembled steel pipe upright post system | |
| CN105604183A (en) | Construction method of rear welded joints of a truss | |
| CN111677102A (en) | Spanning molten salt pump supporting steel platform and molten salt pump supporting method | |
| CN113338690A (en) | Support conversion structure of tower top heavy-duty equipment of heat absorption tower and use method | |
| CN213014651U (en) | Striding type molten salt pump supporting steel platform | |
| CN101705728B (en) | Wavelike steel webplate shear wall structure | |
| CN203559359U (en) | Steel girder for reinforcing rigid frame arch bridge beam | |
| CN202152442U (en) | Assembling type steel tube-vertical post system | |
| CN109555268A (en) | Prefabricated support column and its construction method based on H profile steel | |
| CN104264780B (en) | Post and curved beam horizontal flexibility connection space structural system | |
| CN209685126U (en) | A kind of steel vestibule integrally promotes lifting lug device | |
| CN209369178U (en) | Prefabricated support column based on H profile steel | |
| CN112282418A (en) | Connecting joint of existing concrete column and heightened steel column and construction method | |
| CN206189460U (en) | Part is prefabricated assembles steel reinforced concrete and congeals local soil type and close utility tunnel | |
| CN201924600U (en) | Cast-in-place crossbeam construction formwork supporting system with beam type switching layer | |
| CN205153119U (en) | Interior iris type steel pipe concrete conversion node structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |