An air cooling tower with shutter doors

Abstract

The present invention discloses an air-cooling tower with shutter doors, comprising a tower body, a cooling triangular column and a double-leaf shutter door; the tower body is supported by an X-shaped pillar, a plurality of the cooling triangular columns are arranged in a ring on the ground outside the pillar, and a plurality of the double-leaf shutter doors are arranged in a ring on the ground outside the cooling triangular column; the double-leaf shutter door has a door leaf and a door frame, and a first louver blade group is installed on the door leaf; the double-leaf shutter door is a double-leaf door and / or a folding double-leaf door, and the two door leaves of the double-leaf door are respectively rotatably connected to the door frame; the two door leaves of the folding double-leaf door are hinged, and both door leaves are slidably set on the upper and lower tracks of the door frame. In order to solve the problem in the prior art that the shutters become resistance members of cold air in summer and affect the cooling effect of the air-cooling tower, the present invention increases the air intake of the air-cooling tower by opening the shutter door in summer.

Description

Technical Field

[0001] The invention belongs to the technology of air cooling towers in thermal power plants, and particularly relates to an air cooling tower with shutter doors. Background Art

[0002] As a means of antifreeze in winter, the shutters of the air cooling tower have the advantages of simple structure and easy manufacturing. However, as an antifreeze structure of the air cooling tower, the shutters become resistance to cold air in summer, affecting the cooling effect of the air cooling tower. Summary of the invention

[0003] In order to solve the problem in the prior art that the shutters become resistance to cold air in summer and affect the cooling effect of the air cooling tower, the present invention provides an air cooling tower with shutter doors. By opening the shutter doors in summer, the air intake of the air cooling tower is increased.

[0004] To achieve the above purpose, the present invention adopts the following technical means:

[0005] An air cooling tower with shutter doors, comprising a tower body, a cooling triangular column and double shutter doors; the tower body is supported by an X-shaped cooling tower inclined support column, a plurality of the cooling triangular columns are arranged in a ring on the ground outside the support column, and a plurality of the double shutter doors are arranged in a ring on the ground outside the cooling triangular column;

[0006] The double-leaf shutter door comprises a door leaf and a door frame, wherein the door leaf is placed in the door frame or suspended outside the door frame; and the door leaf comprises a first shutter blade group;

[0007] The double-leaf shutter door is a bi-parting double-leaf door and / or a folding double-leaf door, wherein the two door leaves of the bi-parting double-leaf door are rotatably connected to the door frame respectively; the two door leaves of the folding double-leaf door are hinged, and both door leaves are slidably arranged on the track of the door frame.

[0008] As a further improvement of the present invention, the two door leaves of the double-leaf door are respectively in contact with the adjacent door leaves after opening, and are fixed by concave latches to form a triangular structure; the two door leaves of the folding double-leaf door form a triangular structure after folding.

[0009] As a further improvement of the present invention, the door frame is arranged on an annular pillar outside the cooling triangle pillar of the air cooling tower, the height of the door frame is not greater than the height of the annular pillar, and a shutter is arranged on the part above the door frame on the annular pillar, and a second shutter blade group is installed in the window.

[0010] As a further improvement of the present invention, the double-leaf shutter door further comprises a door rotation axis;

[0011] The two door leaves of a split double-leaf door are connected to the door frame through a door rotation axis; the two door leaves of a folding double-leaf door are connected to each other through a door rotation axis.

[0012] As a further improvement of the present invention, the double-leaf shutter door is also provided with universal wheels;

[0013] The bottom of the two door leaves of the double-leaf door are both provided with mounting grooves for mounting universal wheels;

[0014] The top and bottom of the two door leaves of the folding double-leaf door are both provided with universal wheels or sliding blocks.

[0015] As a further improvement of the present invention, the universal wheel or the sliding block slides in the U-shaped groove on the door top and / or under the door, and the side wall of the U-shaped groove under the door is provided with drainage holes toward the outside of the tower.

[0016] As a further improvement of the present invention, the double-leaf shutter door also has a threshold, a door latch and a door handrail; the door latch and the door handrail are arranged at the closed contact point of the two door leaves, a rubber ring strip is also arranged at the connection between the door leaf and the door frame, and the threshold is arranged on the door frame at the bottom of the door leaf.

[0017] As a further improvement of the present invention, the double-leaf shutter door further comprises a door leaf X support, and the door leaf X support is arranged outside the first shutter on the door leaf.

[0018] As a further improvement of the present invention, the double-leaf louver door also has a louver opening operating dial; the louver opening operating dial includes a semicircular dial, a pin, an operating handle, a handle hollow bar hole and an opening connecting rod; the operating handle is arranged radially along the semicircular dial, and one end of the operating handle is fixed at the center of the semicircular dial by a pin; the other end of the operating handle is provided with a handle hollow bar hole, and the handle hollow bar hole is arranged on the scale of the semicircular dial; a plurality of locking pins for passing through the handle hollow bar holes are arranged on the scale of the semicircular dial; one end of the opening connecting rod is hinged to the operating handle, and the other end is hinged to the first louver; the opening of the first louver is 0°~90°.

[0019] As a further improvement of the present invention, the first louver group and the second louver group are both vertical louvers or horizontal louvers.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The present invention utilizes the arrangement technology of shutter blades to prevent freezing and reduce air resistance, and transforms the shutters into shutter doors or door-window combinations. The goal of the present invention is to retain the positive effect of shutters in winter to prevent freezing, and to eliminate the negative effect of shutters in reducing the amount of cold air in summer. The present invention targets the defect that existing shutters are resistance components, and transforms the shutters into openable shutter doors, which are installed below the widening platform of the air cooling tower, that is, the outermost side of the air cooling tower.

[0022] The traditional shutters of the air-cooling tower can be further transformed into an anti-freeze mechanism that combines doors and windows, and the shutters above the shutter doors remain in their original form without change. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes and are used to help understand the present invention. They do not specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances. In the drawings:

[0024] Figure 1 Schematic diagram of existing louvers for indirect air cooling tower. Install horizontal louvers.

[0025] Figure 2 Relationship diagram between the hyperbolic shell (i.e., tower body) of the air-cooling tower and the X-shaped struts.

[0026] Figure 3 Elevation view of air cooling tower and louvered doors.

[0027] Figure 4 Layout diagram of the ring tower with double-leaf shutter doors and cooling triangular columns outside the tower.

[0028] (Right now Figure 3 II section)

[0029] Figure 5 Large-scale drawing of the plan layout of double-leaf louvered doors.

[0030] [The door is closed (indicated by solid lines) and open (indicated by dotted lines)]

[0031] Figure 6 Large-scale drawing of the plan layout of folding double-leaf shutter doors.

[0032] Figure 7 Front elevation of the double-leaf louvered door.

[0033] (If vertical louvers are installed, it is suitable for direct air cooling tower use.)

[0034] Figure 8 Plan view of double-leaf shutter door (i.e. Figure 7 II-II section in the figure).

[0035] Fig. 9 Elevation view of the double-leaf shutter doors when open.

[0036] Fig.10 Floor plan with the bi-fold shutter doors open.

[0037] Fig.11 Large-scale drawing of the door latch for a double-leaf louvered door.

[0038] Fig.12 Schematic diagram of the overhang of a double-leaf louvered door.

[0039] (If horizontal louvers are installed, it is suitable for indirect air cooling towers.)

[0040] Fig.13 Top view of the left-opening shutter opening operating panel or left view of the bottom-opening shutter opening operating panel.

[0041] The attached drawings are described as follows:

[0042] Table 1 Components description table

[0043]

[0044] DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described in detail and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0046] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] like Figures 1 to 13As shown, the present invention is an air cooling tower with shutter doors, comprising a tower body 1, a cooling triangular column 4 and a double-leaf shutter door 2; the tower body 1 is supported by an X-shaped cooling tower inclined support column 24, a plurality of the cooling triangular columns 4 are arranged in a ring on the ground outside the support column, a plurality of the double-leaf shutter doors 2 are arranged in a ring on the ground outside the cooling triangular columns 4, a cooling tower widening platform is above the cooling triangular columns 4 and the double-leaf shutter door 2, the support of the cooling triangular columns 4 and the double-leaf shutter door 2 is a self-contained system, and is independent of the support system of the tower body 1; the double-leaf shutter door 2 has two types: a double-leaf door and a folding double-leaf door. The double-leaf shutter door 2 has a door leaf 3 and a door frame 10, and the door leaf 3 has a first shutter;

[0049] The double-leaf shutter door 2 is a bi-directional double-leaf door and / or a folding double-leaf door, wherein the two door leaves 3 of the bi-directional double-leaf door are rotatably connected to the door frame 10 respectively; the two door leaves 3 of the folding double-leaf door are hinged, and both door leaves 3 are slidably arranged on the track of the door frame 10.

[0050] Before opening the shutter door, first adjust the shutter opening to 90° to reduce the wind load on the door leaf 3.

[0051] The double-leaf shutter door 2 is a bi-directional double-leaf door and / or a folding double-leaf door, wherein the two door leaves 3 of the bi-directional double-leaf door are rotatably connected to the door frame 10 respectively; the two door leaves 3 of the folding double-leaf door are hinged, and both door leaves 3 are slidably arranged on the track of the door frame 10.

[0052] After the two door leaves 3 of the double-leaf door are opened, they are respectively in contact with the adjacent door leaves and fixed by the concave latch 5 to form a triangular structure; after the two door leaves 3 of the folding double-leaf door are folded, the concave latch 5 is fixed to form a triangular structure. The door frame 10 is arranged on the annular pillar outside the cooling triangle pillar of the air cooling tower, and the door frame 10 is arranged to be the height of the annular pillar or less than the height of the annular pillar. The part other than the door frame 10 on the annular pillar is provided with a second shutter, and the second shutter is arranged at the upper part or the lower part of the door frame 10.

[0053] Specifically, when the double-leaf shutter door 2 is closed, the door leaf 3 is built into the ring tower door frame 10 outside the tower body 1 or suspended outside the door frame 10; when the double-leaf shutter door 2 is fully opened, the door leaves 3 are back to back to form a stable triangular structure. Or the double-leaf shutter door 2 is a folding door.

[0054] Described double leaf shutter door 2 can be used in combination with shutter. For existing shutter, only need to transform the 2 / 3 part of its lower part into double leaf shutter door 2, be equipped with door frame 10 etc.

[0055] The double-leaf shutter door 2 is equipped with a door rotating shaft 6, a door latch 7, a door handrail 8 or a door leaf X support 11, a universal wheel 9, a rubber ring strip 12 and a shutter opening operation panel 14, etc.

[0056] The two door leaves 3 of the split double-leaf door are connected to the door frame 10 via the door rotation axis 6; the two door leaves 3 of the folding double-leaf door are connected to each other via the door rotation axis 6;

[0057] The bottoms of the two door leaves 3 of the double-leaf door are both provided with mounting grooves for mounting universal wheels 9. The double-leaf shutter door 2 is equipped with a threshold 13 when suspended.

[0058] The shutter door 3 can be installed with either vertical shutters or horizontal shutters. One or the other must be selected. Vertical shutters are used for direct air cooling towers, and horizontal shutters are used for indirect air cooling towers. A universal wheel is installed on each side of the lower part of the vertical shutter blades. The universal wheel can roll along a smooth horizontal surface to reduce the resistance when the shutter blades rotate.

[0059] The shutter door leaf 3 is equipped with a concave latch 5.

[0060] The universal wheel 9 is inserted into the door leaf 3, and is inserted only before opening and closing the door. After closing the door and opening the door in place, the universal wheel 9 should be pulled out of the inventory; the shutter opening operation plate 14 includes: a pin 15, an operating handle 16, a handle hollow bar hole 17 and an opening connecting rod 18.

[0061] The door latch 7 and the door handrail 8 are arranged at the closed contact point of the two door leaves 3. A rubber ring strip is also arranged at the connection between the door leaf 3 and the door frame 10. The threshold 13 is arranged on the door frame 10 at the bottom of the door leaf 3.

[0062] The double-leaf shutter door 2 also has a door leaf X support 11, which is arranged outside the first shutter on the door leaf 3. The door leaf X support 11 is composed of two mutually intersecting support members, and the ends of the support members are bent for insertion into the connecting holes. An X-shaped diagonal brace is arranged along the diagonal line of the outer side of the door to prevent deformation of the door. The X-shaped diagonal brace cannot affect the free opening of the shutter blades.

[0063] The double-leaf shutter door 2 also has a shutter opening operating disk 14; the shutter opening operating disk 14 includes a semicircular dial, a pin 15, an operating handle 16, a handle hollow bar hole 17 and an opening connecting rod 18; the operating handle 16 is arranged radially along the semicircular dial, and one end of the operating handle 16 is fixed at the center of the semicircular dial by the pin 15; the other end of the operating handle 16 is provided with a handle hollow bar hole 17, and the handle hollow bar hole 17 is arranged on the scale of the semicircular dial; a plurality of locking pins 19 for passing through the handle hollow bar holes 17 are arranged on the scale of the semicircular dial; one end of the opening connecting rod 18 is hinged to the operating handle 16, and the other end is hinged to the first shutter.

[0064] The shutter door support frame can rotate around the vertical axis outside the tower (i.e., the Z axis). When the shutter door needs to be anti-freezing in winter, the door is closed; when the shutter door does not need to be anti-freezing in summer, the door is opened. After opening the door, the adjacent door leaves are back to back and fixed with concave latches to form a stable triangle to resist wind loads. At this time, all the shutters in the door should be locked to the maximum opening.

[0065] If necessary, a combination of doors and windows can be used, with shutters installed above the shutter doors to lower the door height.

[0066] For direct air-cooling towers, vertical louvers are used, and two universal wheels are installed at the bottom of the louvers, which can roll along a smooth horizontal surface to reduce the resistance of the louvers when they rotate. (Before the submission of this application, only indirect air-cooling towers were put into operation, and no direct air-cooling towers were built and put into operation. The world's first direct air-cooling tower is scheduled to be put into operation in the fourth quarter of 2022 at the 2×600MW Yanghuopan Power Plant of Shenmu Yulin, Shaanxi.)

[0067] For indirect air-cooled towers, the current scheme of using horizontal louvers is maintained.

[0068] Use the door frame to support the shutters and doors, and squeeze the sealing rubber strips around the door. To reduce rubber aging, the hollow round sealing ring strips can be removed in summer. It is also possible to design only shock-absorbing rubber pads without sealing strips.

[0069] The door has two types of closed states:

[0070] The first form is that when closed, the door leaf is placed in the door frame, such as Figure 7 As shown;

[0071] The second form is that when closed, the door leaf is suspended outside the door frame, such as Fig.12 The suspended door leaves can create a three-dimensional layered aesthetic feeling for the building.

[0072] In addition, double-leaf shutter doors can also use the folding door technology, but the cost may be higher.

[0073] The double-leaf shutter door 2 adopts a folding process. When the double-leaf shutter door 2 is fully opened, the door leaf 3 can be folded into a stable triangular structure. Universal wheels 9 are arranged at the top and bottom of the two door leaves 3 of the folding double-leaf door. As the door rotating shaft 6 rotates, the universal wheels 9 slide in the U-shaped grooves at the top and bottom of the door to fold the door.

[0074] In addition, preferably, the present invention also has the following structural features:

[0075] (1) The structure of shutter doors and shutter windows is that the door is at the bottom and the window is at the top, which makes it easy to open the door; the window is fixed and is not considered to be opened.

[0076] (2) Universal wheels are temporarily installed under the double-leaf doors to assist in opening and closing the doors, and the universal wheels roll on the ground.

[0077] (3) Two universal wheels are installed at the bottom of the vertical louver to provide resistance when the louver rotates.

[0078] (4) The folding door has sliders in the upper and lower door slots, which are replaced by universal wheels in this application. Sliders should be used instead in actual construction.

[0079] Example

[0080] Ningxia Jingneng Shuidonggou 2×600MW indirect air cooling was put into operation in June 2011. If the shutters of its air cooling towers are modified according to the present invention, the investment in the modification of the two towers is about 2×1.12 million yuan. After the modification, 2g / kW.h of coal can be saved, and the cost of coal saved each year is 2×1.35 million yuan.

[0081] The reconstruction plan is: the upper 8 meters of the 24-meter-high cooling column still use the original shutters, and the lower 16 meters are changed to shutter doors. There are 177 cooling columns in a single tower, and 88 doors + 1 adjustment door (or no reconstruction, still use shutters), a total of 176 door leaves, door leaf size B×H=3×16m, suspended door leaves, use existing horizontal shutters, and do not shorten the length of the shutter leaves. The radius from the door to the center of the tower can also be increased to increase the position and size for installing the door frame.

[0082] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0083] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the foregoing claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. An air cooling tower with shutter doors, characterized in that: It comprises a tower body (1), a cooling triangular column (4) and a double-leaf louver door (2); the tower body (1) is supported by an X-shaped cooling tower inclined column (24), a plurality of the cooling triangular columns (4) are arranged in a ring on the ground outside the column, and a plurality of the double-leaf louver door (2) are arranged in a ring on the ground outside the cooling triangular column (4); The double-leaf shutter door (2) comprises a door leaf (3) and a door frame (10), wherein the door leaf (3) is placed in the door frame (10) or suspended outside the door frame (10); the door leaf (3) comprises a first shutter blade group; The double-leaf shutter door (2) is a biparting double-leaf door and / or a folding double-leaf door, wherein the two door leaves (3) of the biparting double-leaf door are respectively rotatably connected to the door frame (10); the two door leaves (3) of the folding double-leaf door are hinged, and both door leaves (3) are slidably arranged on tracks of the door frame (10); The two door leaves (3) of the double-leaf door are respectively in contact with adjacent door leaves after opening, and are fixed by a concave latch (5) to form a triangular structure; the two door leaves (3) of the folding double-leaf door are folded to form a triangular structure; The double-leaf shutter door (2) further comprises a shutter opening operation disk (14); the shutter opening operation disk (14) comprises a semicircular scale disk, a pin (15), an operating handle (16), a handle hollow bar hole (17) and an opening connecting rod (18); the operating handle (16) is arranged along the radial direction of the semicircular scale disk, and one end of the operating handle (16) is fixed to the center of the semicircular scale disk through the pin (15); the other end of the operating handle (16) is provided with a handle hollow bar hole (17), and the handle hollow bar hole (17) is arranged on the scale of the semicircular scale disk; a plurality of locking pins (19) for passing through the handle hollow bar hole (17) are arranged on the scale of the semicircular scale disk; one end of the opening connecting rod (18) is hinged to the operating handle (16), and the other end is hinged to the first shutter; the opening degree of the first shutter is 0°~90°.

2. The air cooling tower with shutter doors according to claim 1, characterized in that: The door frame (10) is arranged on an annular support column outside the cooling triangle column of the air cooling tower, the height of the door frame (10) is not greater than the height of the annular support column, and a shutter is arranged on the portion of the annular support column above the door frame (10), and a second shutter blade group is installed in the window.

3. The air cooling tower with shutter doors according to claim 1, characterized in that: The double-leaf shutter door (2) further comprises a door rotation axis (6); The two door leaves (3) of the split double-leaf door are connected to the door frame (10) via a door rotation shaft (6); and the two door leaves (3) of the folding double-leaf door are connected to each other via the door rotation shaft (6).

4. The air cooling tower with shutter doors according to claim 1, characterized in that: The double-leaf shutter door (2) is also provided with a universal wheel (9); The bottoms of the two door leaves (3) of the double-leaf door are both provided with mounting grooves for mounting universal wheels (9); Universal wheels (9) or sliding blocks are provided at the top and bottom of the two door leaves (3) of the folding double door.

5. The air cooling tower with shutter doors according to claim 4, characterized in that: The universal wheel (9) or the sliding block slides in the U-shaped groove on the top of the door and / or under the door, and the side wall of the U-shaped groove under the door is provided with a drainage hole facing the outside of the tower.

6. The air cooling tower with shutter doors according to claim 1, characterized in that: The double-leaf shutter door (2) further comprises a threshold (13), a door latch (7) and a door handrail (8); the door latch (7) and the door handrail (8) are arranged at the closed contact point of the two door leaves (3); a rubber ring strip is further arranged at the connection point between the door leaves (3) and the door frame (10); and the threshold (13) is arranged on the door frame (10) at the bottom of the door leaves (3).

7. The air cooling tower with shutter doors according to claim 1, characterized in that: The double-leaf shutter door (2) further comprises a door leaf X support (11), wherein the door leaf X support (11) is arranged outside the first shutter on the door leaf (3).

8. The air cooling tower with shutter doors according to claim 2, characterized in that: The first louver group and the second louver group are both vertical louvers or horizontal louvers.

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