Patent US3727679A successfully refreshed from Google Patents.
US3727679A
Expired / Lapsed
US
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Mechanical draft cooling or condensing plant
Assignee: GEA Luftkuehler GmbH
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Filing: 1971-07-23
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Granted: 1973-04-17
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Expires: 1991-07-23
Abstract
Abstract A mechanical draft cooling or condensing plant for air cooling or condensing a medium conducted in a closed circuit, particularly a plant of major cooling capacity, in which mechanical draft cooling air enters the plant substantially in the horizontal direction through vertical walls in the plant and the medium to be cooled flows through plate-shaped cooling elements composed of a plurality of finned tubes, the cooling elements extending in vertical planes and, together with bearing and support means, form one or more of the substantially vertical walls which are zigzag-shaped in plan, and wherein, viewed in the direction of flow of the cooling air in front of and/or behind the walls a large number of extractor and blower fans are disposed in uniform distribution over the entire surface of the wall or walls in immediate proximity with the cooling elements, the fans being placed so that their blades revolve in vertical planes.
Inventors
- 👤 Cleve H Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:24
CPC Classifications
F; F28; F28B; F28B1/00; F28B1/06; Y; Y10; Y10S; Y10S165/00; Y10S165/90; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
175 words
In a plant of large cooling capacity for air cooling of water in a closed circuit, a combination comprising a plurality of wall shaped cooling elements each composed of a plurality of finned tubes for the passage of water to be cooled therethrough, said wall shaped cooling elements being respectively arranged in substantially vertical planes adjacent to each other and each pair of adjacent wall shaped cooling elements including an angle with each other; a third upright wall element formed with at least one circular opening and connected to each pair of adjacent wall shaped cooling elements to form with the latter a hollow upright prism of triangular cross section, the hollow prisms being connected to each other to form a structure which is substantially closed in circumferential direction and open at the top; and a ventilator arranged in each opening of the third wall elements, each having blades rotating in a substantially vertical plane for causing cooling air to pass in a substantially horizontal direction over the surfaces of said wall shaped cooling elements.
Claim 2
Dependent Claim
175 words
In a plant of large cooling capacity for air cooling of water in a closed circuit, a combination comprising a plurality of wall shaped cooling elements each composed of a plurality of finned tubes for the passage of water to be cooled therethrough, said wall shaped cooling elements being respectively arranged in substantially vertical planes adjacent to each other and each pair of adjacent wall shaped cooling elements including an angle with each other; a third upright wall element formed with at least one circular opening and connected to each pair of adjacent wall shaped cooling elements to form with the latter a hollow upright prism of triangular cross section, the hollow prisms being connected to each other to form a structure which is substantially closed in circumferential direction and open at the top; and a ventilator arranged in each opening of the third wall elements, each having blades rotating in a substantially vertical plane for causing cooling air to pass in a substantially horizontal direction over the surfaces of said wall shaped cooling elements.
Claim 3
Dependent Claim
23 words
A combination as defined in claim 1, wherein the triangular cross section of each hollow prism has the shape of an isosceles triangle.
Claim 4
Dependent Claim
42 words
A combination as defined in claim 1, wherein each of said wall shaped cooling elements has a pair of opposite vertical edges and including connecting means for connecting the vertical edges of each pair of wall shaped cooling elements to each other.
Claim 5
Dependent Claim
31 words
A combination as defined in claim 3, wherein each third wall shaped element is connected to one of the connecting means of the wall shaped cooling elements of a respective pair.
Claim 6
Dependent Claim
37 words
A combination as defined in claim 3, wherein each third wall shaped element is connected to the respective pair of cooling elements intermediate the opposite vertical edges of the wall shaped cooling elements forming the respective pair.
Claim 7
Dependent Claim
17 words
A combination as defined in claim 3, wherein said connecting means are constituted by upright support members.
Claim 8
Dependent Claim
37 words
A combination as in claim 6, wherein adjacent support members, are arranged relative to one another to define, in horizontal cross-section, points on isosceles triangles and wherein said elongated support members serve as upflow and downflow pipes.
Claim 9
Dependent Claim
12 words
A combination as in claim 7, wherein said triangles are equilaterial triangles.
Claim 10
Dependent Claim
28 words
A combination as in claim 7, wherein the two equal sides of said isosceles triangles are formed by said cooling elements and the third side by said fans.
Claim 11
Dependent Claim
27 words
A combination as in claim 8, wherein the sides of each triangle formed by said cooling elements are each defined by a like number of cooling elements.
Claim 12
Dependent Claim
28 words
A combination as in claim 8, wherein at least one side of each triangle formed by said cooling elements is defined by a portion of a cooling element.
Claim 13
Dependent Claim
22 words
A combination as in claim 7, wherein at least one of the corners of each triangle is formed by an upflow pipe.
Claim 14
Dependent Claim
22 words
A combination as in claim 7, wherein at least one of the corners of each triangle is formed by a downflow pipe.
Claim 15
Dependent Claim
19 words
A combination as defined in claim 6, wherein said upright support members are constituted by up-flow and down-flow pipes.
Claim 16
Dependent Claim
36 words
A combinatioN as in claim 14, wherein said fins of each cooling element are supported by a frame structure embracing the edge of said cooling element, said frame being connected to said upflow and downflow pipes.
Claim 17
Dependent Claim
18 words
A combination as in claim 15, wherein said fans are mounted to said frames of said cooling elements.
Claim 18
Dependent Claim
17 words
A combination as in claim 14, wherein said fans are mounted to said upflow and downflow pipes.
Claim 19
Dependent Claim
32 words
A combination as defined in claim 14, wherein the flow of water to be cooled is from an up-flow pipe to a cooling element and from the latter to a down-flow pipe.
Claim 20
Dependent Claim
33 words
A combination as defined in claim 18, wherein all of said up-flow pipes are located at the outside of said structure and all of said down-flow pipes at the inside of said structure.
Claim 21
Dependent Claim
14 words
A combination as defined in claim 1, wherein said structure has a polygonal outline.
Claim 22
Dependent Claim
15 words
A combination as defined in claim 1, wherein said structure has a substantially circular outline.
Claim 23
Dependent Claim
40 words
A combination as defined in claim 1, wherein each of said third wall elements is provided with a plurality of circular openings and including a ventilator in each of the plurality of openings in each of said third wall elements.
Claim 24
Dependent Claim
25 words
A combination as defined in claim 22, wherein said plurality of openings in each third wall element are aligned with each other in vertical direction.
Claim 25
Dependent Claim
23 words
A combination as defined in claim 1, and including support means for supporting said structure on and in close proximity to the ground.
Claim 26
Dependent Claim
14 words
A combination as in claim 1, wherein said finned tubes are substantially horizontally disposed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |