A cooling delta unit with a cross-regulated current sharing device

Abstract

The application discloses a cooling triangular unit with transversely adjustable current equalizing device, which comprises a cooling triangular unit and a transversely adjustable current equalizing device, wherein the cooling triangular unit comprises left cooling columns, right cooling columns and an air inlet louver, and the transversely adjustable current equalizing device comprises a vertical fixing shaft, an upper horizontal slide, a lower horizontal slide, a roller shutter and a vertical moving shaft, and the transversely adjustable current equalizing device is vertically arranged along a vertical central symmetry plane of the cooling triangular unit. The cooling triangular unit with transversely adjustable current equalizing device can horizontally and transversely adjust the roller shutter along the slide according to the environmental wind speed and direction, and the roller shutter can be transversely adjusted to the outermost side of the cooling triangular unit at a small environmental wind speed, thereby playing a role of air side current equalization of the cooling triangular unit; the roller shutter can be transversely adjusted to the innermost side at a large environmental wind speed and a large air inlet inclination, thereby reducing the air inlet resistance of the cooling triangular unit and reducing the adverse effect of additional ventilation resistance of the current equalizing device; and the application has the characteristics of small resistance and intelligence.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of indirect air cooling tower of thermal power plant, and particularly relates to a cooling triangular unit with transversely adjustable flow uniformizing device. BACKGROUND

[0002] The indirect air cooling tower relies on the ambient wind to cool the circulating water, and thus the cooling performance of the indirect air cooling system is easily affected by the ambient wind. The cooling triangular unit is a core element of the indirect air cooling system, and the uniformity of the air inlet of the cooling columns on both sides of the cooling triangular unit and the overall air resistance of the cooling triangular unit determine the overall cooling performance of the cooling columns on both sides of the cooling triangular unit. In the ambient wind, the air inlets of the cooling columns on both sides of the cooling triangular unit are prone to be uneven, and the cooling performance of the cooling columns on both sides of the cooling triangular unit is prone to be greatly deviated. The air-side flow uniformizing device can distribute the space air inlets of the cooling triangular unit, balance the air inlets of the cooling columns on both sides of the cooling triangular unit, and optimize the overall cooling performance of the cooling triangular unit. However, when the ambient wind speed is large and the air inlets of the cooling triangular unit are greatly inclined, the air inlets of the cooling triangular unit are against the flow uniformizing device, which increases the air resistance of the air inlets of the cooling triangular unit, reduces the overall air volume, and affects the overall cooling performance of the cooling triangular unit.

[0003] Chinese patent, patent number ZL 2015 1 0055635.6, discloses a gas side flow uniformizing device of an indirect cooling tower cooling triangle, which is composed of at least one group of flow uniformizing components arranged along the circumference of the indirect cooling tower, specifically including a cooling triangle, a first flow uniformizing plate for changing the flow direction of the cooling triangle is arranged in the cavity of the cooling triangle, the first flow uniformizing plate is arranged along the middle symmetry plane of the cooling triangle and extends outward to the outside of the cooling triangle; the outer end face of the cooling column on both sides of the cooling triangle is respectively provided with a second and a third flow uniformizing plate for converging and guiding the incoming air, the second and third flow uniformizing plates are respectively arranged outward along the radial line of the indirect cooling tower, and the first, second and third flow uniformizing plates are all arranged in the vertical direction. The invention reduces the deviation of the incoming air at the air inlet of the cooling triangle by the cooperation of the three groups of flow uniformizing plates, eliminates the low-speed vortex area of the air in the cooling triangle, and maximizes the flow uniformizing effect of the incoming air of the cooling triangle. Patent number 202111545557.X, a cooling triangle unit installed with a flow uniformizing device with a middle jet gap, on the basis of evenly distributing the incoming air of the cooling triangle, the jet flow formed by the middle jet gap eliminates the vortex induced by the incoming air at the leeward side of the flow uniformizing device, thereby improving the cooling performance of the cooling columns on both sides of the cooling triangle unit and the overall cooling performance. Patent number 202111610358.2, a cooling triangle unit installed with a flow uniformizing device with jet flow alternating effect, on the basis of balancing the incoming air on both sides of the cooling triangle, the multi-stage jet flow formed by the multi-stage jet gap eliminates the multi-stage vortex formed by the incoming air at the leeward side of the flow uniformizing device, thereby improving the cooling performance of the cooling columns on both sides. The flow uniformizing devices of the above-mentioned patents all belong to fixed flow uniformizing devices. When the environmental wind obliquely enters the air inlet louvers of the cooling triangle unit, the air vortex induced at the leeward side of the flow uniformizing device can be eliminated on the basis of balancing or evenly distributing the incoming air on both sides of the cooling triangle. However, when the environmental wind with high speed obliquely enters the cooling triangle unit, the flow uniformizing device has a large resistance effect, which may reduce the cooling performance of the cooling triangle unit. The present invention applies a cooling triangle unit with horizontally adjustable flow uniformizing device, which can horizontally adjust the roller blind along the upper horizontal slide and the lower horizontal slide through the vertical moving shaft: when the environmental wind speed is small, the roller blind can be horizontally adjusted to the outermost side to play the role of gas side flow uniformizing of the cooling triangle; when the environmental wind speed is large and the incoming air inclination is large, the roller blind can be horizontally adjusted to the innermost side to reduce the incoming air resistance of the cooling triangle and reduce the adverse effects of the additional ventilation resistance of the flow uniformizing device; it has the characteristics of small resistance and intelligence. SUMMARY

[0004] The application aims to overcome the problem of increased ventilation resistance of the cooling triangle unit caused by large ambient wind speed and large air inlet inclination angle after installing the flow equalizing device in the cooling triangle unit.

[0005] A cooling triangle unit with a flow equalizing device capable of transverse regulation, comprising a cooling triangle unit and a flow equalizing device capable of transverse regulation, characterized in that: the cooling triangle unit comprises a left cooling column, a right cooling column and an air inlet louver, the flow equalizing device capable of transverse regulation comprises a vertical fixed shaft, an upper horizontal slide, a lower horizontal slide, a roller blind and a vertical moving shaft, and the flow equalizing device capable of transverse regulation is vertically arranged along the vertical center symmetry plane of the cooling triangle unit.

[0006] The right end of the left cooling column is provided with a support surface, the left end of the right cooling column is provided with a support surface, and the right end support surface of the left cooling column, the left end support surface of the right cooling column and the air inlet louver support surface form a triangular space.

[0007] The vertical fixed shaft is installed at a distance Ln from the intersection point of the left and right cooling columns of the cooling triangle unit, and 0≤Ln≤L / 5, L being the horizontal distance from the intersection point of the left and right cooling columns of the cooling triangle unit to the air inlet louver support surface.

[0008] The upper horizontal slide and the lower horizontal slide of the flow equalizing device capable of transverse regulation are arranged on the vertical center symmetry plane of the cooling triangle unit, the inner ends of the upper horizontal slide and the lower horizontal slide are installed on the vertical fixed shaft of the flow equalizing device, and extend horizontally outward to the air inlet louver along the vertical center symmetry plane of the cooling triangle unit.

[0009] The distance between the lower horizontal slide and the bottom end of the cooling triangle unit is Hx, and 0≤Hx

[0010] The fixed end of the roller blind is installed on the vertical fixed shaft, and the moving end of the roller blind is installed on the vertical moving shaft.

[0011] The upper edge of the roller shutter is installed in the upper horizontal slide and can slide horizontally along the upper horizontal slide; the lower edge of the roller shutter is installed in the lower horizontal slide and can slide horizontally along the lower horizontal slide.

[0012] The vertical moving shaft can move horizontally and laterally along the upper horizontal slide and the lower horizontal slide from the vertical fixed shaft, and the horizontal and lateral moving distance of the vertical moving shaft ranges from Lw, 0≤Lw≤L-Ln.

[0013] The roller shutter is composed of a roller shutter fabric and roller shutter vertical strips which are horizontally spaced, the roller shutter vertical strips are made of hard material, and the roller shutter fabric is made of nylon, polyester, canvas or the like.

[0014] The upper end of the roller shutter vertical strip is flush with the upper edge of the roller shutter, the lower end of the roller shutter vertical strip is flush with the lower edge of the roller shutter, and the horizontal spacing between the adjacent two vertical strips of the roller shutter ranges from Lj, 0<Lj≤L-Ln.

[0015] Compared with the prior art, the cooling triangular unit with a flow-equalizing device capable of transverse regulation has the advantages that the roller shutter can be horizontally and laterally regulated along the slide according to the environmental wind speed and direction: when the environmental wind speed is small, the roller shutter can be horizontally and laterally regulated to the outermost side of the cooling triangular unit to play the role of air-side flow equalization of the cooling triangular unit; when the environmental wind speed is large and the inclination of the incoming air is large, the roller shutter can be horizontally and laterally regulated to the innermost side to reduce the incoming air resistance of the cooling triangular unit and the adverse effects of the additional ventilation resistance of the flow-equalizing device, so that the cooling triangular unit has the characteristics of small resistance and intelligence. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a top view of the cooling triangular unit with a flow-equalizing device capable of transverse regulation.

[0017] Figure 2 It is a sectional view of the cooling triangular unit with a flow-equalizing device capable of transverse regulation along the vertical center symmetry plane of the cooling triangular unit.

[0018] Figure 3 It is a schematic view of the cooling triangular unit with a flow-equalizing device capable of transverse regulation when the environmental wind speed is small.

[0019] Figure 4 It is a schematic view of the cooling triangular unit with a flow-equalizing device capable of transverse regulation when the environmental wind speed is large and the inclination of the incoming air is large.

[0020] In the diagram: 1—Left cooling column, 2—Right cooling column, 3—Air inlet louver, 4—Vertical fixed axis, 5—Vertical moving axis, 6—Roller blind, 7—Top of cooling triangular unit, 8—Bottom of cooling triangular unit, 9—Fixed end of curtain, 10—Moving end of curtain, 11—Upper horizontal slide rail, 12—Lower horizontal slide rail, 13—Upper end of curtain, 14—Lower end of curtain, 15—Rigid vertical strip. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-2 As shown, the present invention provides a horizontally adjustable cooling triangular unit with a flow equalization device, comprising a cooling triangular unit and a horizontally adjustable flow equalization device. The cooling triangular unit includes a left cooling column 1, a right cooling column 2, and an air inlet louver 3. The horizontally adjustable flow equalization device includes a vertical fixed shaft 4, a roller shutter 6, a vertical moving shaft 5, an upper horizontal slide rail 13, and a lower horizontal slide rail 14. The horizontally adjustable flow equalization device is vertically arranged along the vertical central symmetry plane of the cooling triangular unit. The right end of the left cooling column 1 is provided with a support surface, and the left end of the right cooling column 2 is provided with a support surface. The right end support surface of the left cooling column 1, the left end support surface of the right cooling column 2, and the support surface of the air inlet louver 3 intersect to form a triangular space. The vertical distance from the intersection of the left and right cooling columns of the cooling triangle unit to the air inlet louver 3 is L. The vertical height of the cooling triangle unit is H. The vertical fixed shaft 4 is installed at a certain distance of L / 5 from the intersection of the left and right cooling columns of the cooling triangle unit. The horizontally adjustable flow equalization device, with upper horizontal slide 13 and lower horizontal slide 14, is arranged on the vertical center symmetry plane of the cooling triangle unit. The inner ends of the upper horizontal slide 13 and lower horizontal slide 14 are installed on the vertical fixed shaft 4 of the flow equalization device and extend horizontally outward along the vertical center symmetry plane of the cooling triangle unit. The distance from the lower horizontal slide rail 14 to the bottom end 8 of the cooling triangular unit is H / 5, and the distance from the upper horizontal slide rail 13 to the top end 7 of the cooling triangular unit is H / 5. The fixed end 9 of the roller blind is installed on the vertical fixed shaft 4, and the moving end 10 of the roller blind is installed on the vertical moving shaft 5. The upper end 13 of the roller blind is installed in the upper horizontal slide rail 11 and can slide from the inside to the outside along the upper horizontal slide rail 11. The lower end 14 of the roller blind is installed in the lower horizontal slide rail 12 and can slide from the inside to the outside along the lower horizontal slide rail. The vertical moving shaft 5 can move horizontally outward from the vertical fixed shaft 4 along the upper horizontal slide rail 11 and the lower horizontal slide rail 12 by a distance of 0~L. The roller blind is composed of a curtain 6 and vertical strips 15 spaced horizontally. The vertical strip material is rigid PVC, and the curtain material is preferably nylon. The upper end 17 of the roller blind vertical strip is flush with the upper edge 13 of the roller blind, and the lower end 16 of the roller blind vertical strip is flush with the lower edge 14 of the roller blind. The horizontal distance between two adjacent vertical strips of the roller blind is L / 6.

[0023] Embodiment 1 is a cooling triangle unit with a flow equalization device capable of transverse regulation at a small ambient wind speed.

[0024] As shown in Figure 3 Embodiment 1 is a cooling triangle unit with a flow equalization device capable of transverse regulation at a small ambient wind speed. The cooling triangle unit includes a left cooling column 1, a right cooling column 2, and an air inlet louver 3. The flow equalization device capable of transverse regulation includes a vertical fixed shaft 4, a roller blind 6, a vertical moving shaft 5, an upper horizontal slide 13, and a lower horizontal slide 14. The flow equalization device capable of transverse regulation is vertically arranged along the vertical center symmetry plane of the cooling triangle unit. The right end of the left cooling column 1 is provided with a support surface, and the left end of the right cooling column 2 is provided with a support surface. The right end support surface of the left cooling column 1, the left end support surface of the right cooling column 2, and the support surface of the air inlet louver 3 form a triangular space. The vertical distance from the intersection of the left and right cooling columns of the cooling triangle unit to the air inlet louver 3 is 3 m. The vertical height of the cooling triangle unit is 10 m. The vertical fixed shaft 4 is installed at a distance of 0.3 m from the intersection of the left and right cooling columns of the cooling triangle unit. The upper horizontal slide 13 and the lower horizontal slide 14 of the flow equalization device capable of transverse regulation are arranged on the vertical center symmetry plane of the cooling triangle unit. The inner ends of the upper horizontal slide 13 and the lower horizontal slide 14 are installed on the vertical fixed shaft 4 and extend horizontally outward to the air inlet louver 3 along the vertical center symmetry plane of the cooling triangle unit. The distance from the lower horizontal slide 14 to the bottom end 8 of the cooling triangle unit is 0.2 m, and the distance from the upper horizontal slide 13 to the top end 7 of the cooling triangle unit is 0.5 m. The fixed end 9 of the roller blind is installed on the vertical fixed shaft 4, and the moving end 10 of the roller blind is installed on the vertical moving shaft 5. The upper end 13 of the roller blind is installed in the upper horizontal slide 11 and can slide from inside to outside along the upper horizontal slide 11. The lower end 14 of the roller blind is installed in the lower horizontal slide 12 and can slide from inside to outside along the lower horizontal slide. The vertical moving shaft 5 can move horizontally and transversely outward from the vertical fixed shaft 4 by a distance of 2.6 m along the upper horizontal slide 11 and the lower horizontal slide 12. The roller blind is composed of curtain cloth 6 and vertical bars 15 at intervals in the transverse direction. The vertical bars are made of hard PVC, and the curtain cloth is preferably made of nylon. The upper end 17 of the vertical bar of the roller blind is flush with the upper edge 13 of the roller blind, and the lower end 16 of the vertical bar of the roller blind is flush with the lower edge 14 of the roller blind. The horizontal distance between adjacent vertical bars of the roller blind is 0.4 m.

[0025] At a small ambient wind speed, the flow equalization device is in an open state, which evenly distributes the air volume in the cooling triangle unit between the left cooling column and the right cooling column, thereby balancing the cooling capacity of the cooling columns on both sides of the cooling triangle and ultimately improving the cooling performance of the cooling triangle unit and the system.

[0026] Embodiment 2 is a cooling triangle unit with a flow equalization device capable of transverse regulation at a large ambient wind speed and a large air inlet inclination angle.

[0027] AsFigure 4 As shown, the current application is a cooling triangle unit with transversely adjustable current equalizing device, which comprises a cooling triangle unit and a transversely adjustable current equalizing device. The cooling triangle unit comprises a left cooling column 1, a right cooling column 2 and an air inlet louver 3. The transversely adjustable current equalizing device comprises a vertical fixed shaft 4, a roller blind 6, a vertical moving shaft 5, an upper horizontal slide 13, a lower horizontal slide 14, and is arranged vertically along the vertical center symmetry plane of the cooling triangle unit. The right end of the left cooling column 1 is provided with a support surface, and the left end of the right cooling column 2 is provided with a support surface. The right end support surface of the left cooling column 1, the left end support surface of the right cooling column 2 and the support surface of the air inlet louver 3 form a triangular space. The vertical distance from the intersection of the left and right cooling columns of the cooling triangle unit to the air inlet louver 3 is 3 m. The vertical height of the cooling triangle unit is 10 m. The vertical fixed shaft 4 is installed at a distance of 0.2 m from the intersection of the left and right cooling columns of the cooling triangle unit. The upper horizontal slide 13 and the lower horizontal slide 14 of the transversely adjustable current equalizing device are arranged on the vertical center symmetry plane of the cooling triangle unit. The inner end of the upper horizontal slide 13 and the lower horizontal slide 14 is installed on the vertical fixed shaft 4 of the current equalizing device and extends outward horizontally along the vertical center symmetry plane of the cooling triangle unit to the air inlet louver 3. The distance between the lower horizontal slide 14 and the bottom end 8 of the cooling triangle unit is 0.5 m. The distance between the upper horizontal slide 13 and the top end 7 of the cooling triangle unit is 0.5 m. The fixed end 9 of the roller blind is installed on the vertical fixed shaft 4, and the moving end 10 of the roller blind is installed on the vertical moving shaft 5. The upper end 13 of the roller blind is installed in the upper horizontal slide 11 and can slide from inside to outside along the upper horizontal slide 11. The lower end 14 of the roller blind is installed in the lower horizontal slide 12 and can slide from inside to outside along the lower horizontal slide. The vertical moving shaft 5 can move outward horizontally and transversely from the vertical fixed shaft 4 by a distance of 0.3 m along the upper horizontal slide 11 and the lower horizontal slide 12. The roller blind is composed of curtain cloth 6 and vertical bars 15 at intervals in the transverse direction. The vertical bar material is hard PVC, and the curtain cloth material is preferably nylon. The upper end 17 of the roller blind vertical bar is flush with the upper edge 13 of the roller blind, and the lower end 16 of the roller blind vertical bar is flush with the lower edge 14 of the roller blind. The horizontal distance between the adjacent two vertical bars of the roller blind is 0.5 m.

[0028] When the ambient wind speed and the air inlet angle are large, the roller blind can be adjusted transversely to the inside, which can reduce the ventilation resistance and reduce the adverse effects of the current equalizing device, and has the characteristics of small resistance and intelligence.

[0029] The application discloses a cooling triangular unit with transversely adjustable current equalizing device, which comprises a cooling triangular unit and a transversely adjustable current equalizing device, wherein the cooling triangular unit comprises a left cooling column, a right cooling column and an air inlet louver, and the transversely adjustable current equalizing device comprises a vertical fixing shaft, an upper horizontal slide, a lower horizontal slide, a roller shutter and a vertical moving shaft, and the transversely adjustable current equalizing device is vertically arranged along a vertical central symmetry plane of the cooling triangular unit.The cooling triangular unit with transversely adjustable current equalizing device can horizontally and transversely adjust the roller shutter along the slide according to the environmental wind speed and direction, and the roller shutter can be transversely adjusted to the outermost side of the cooling triangular unit when the environmental wind speed is small, so as to realize air side current equalization of the cooling triangular unit; and the roller shutter can be transversely adjusted to the innermost side when the environmental wind speed is large and the air inlet is greatly inclined, so as to reduce the air inlet resistance of the cooling triangular unit and reduce the adverse effect of additional ventilation resistance of the current equalizing device, and therefore, the cooling triangular unit has the characteristics of small resistance and intelligence.

[0030] The above shows and describes the basic principles, main features and advantages of the application, and it is obvious for those skilled in the art that the application is not limited to the details of the above exemplary embodiments, and the application can be realized in other specific forms without departing from the spirit or essential characteristics of the application; therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the application is defined by the appended claims rather than the above description, and therefore, all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the application, and any reference signs in the claims should not be regarded as limiting the claims.

[0031] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A cooling delta unit with a transversely adjustable current sharing device, comprising a cooling delta unit and a transversely adjustable current sharing device, characterized in that: The cooling triangle unit comprises a left cooling column, a right cooling column and an air inlet louver, the laterally adjustable flow equalization device comprises a vertical fixed shaft, an upper horizontal slide, a lower horizontal slide, a roller blind and a vertical moving shaft, and the laterally adjustable flow equalization device is vertically arranged along a vertical central symmetry plane of the cooling triangle unit; the vertical fixed shaft is installed at a distance Ln from the intersection point of the left and right cooling columns of the cooling triangle unit, 0≤Ln≤L / 5, L being the horizontal vertical distance from the intersection point of the left and right cooling columns of the cooling triangle unit to the support surface of the air inlet louver; the vertical moving shaft can be moved horizontally and laterally outward from the vertical fixed shaft along the upper horizontal slide and the lower horizontal slide, and the moving distance range is Lw, 0≤Lw≤L-Ln; the roller blind is composed of a roller blind fabric and roller blind vertical strips which are laterally spaced apart, the roller blind vertical strips are made of hard material, and the roller blind fabric is made of flexible material.

2. The cross-regulatable cooling delta cell of claim 1, wherein: The right end of the left cooling column is provided with a support surface, the left end of the right cooling column is provided with a support surface, and the right end support surface of the left cooling column, the left end support surface of the right cooling column and the support surface of the air inlet louver form a triangular space.

3. The cross-regulatable cooling delta cell of claim 1, wherein: The inner ends of the upper horizontal slide and the lower horizontal slide of the laterally adjustable flow equalization device are installed on the vertical fixed shaft of the flow equalization device, and the upper horizontal slide and the lower horizontal slide extend horizontally and outward to the air inlet louver along the vertical central symmetry plane of the cooling triangle unit.

4. A laterally adjustable cooling delta cell along a current sharing device according to claim 1, characterized in that: The distance between the lower horizontal slide of the roller blind and the bottom end of the cooling triangle unit is Hx, 0≤Hx<H / 2, the distance between the upper horizontal slide and the top end of the cooling triangle unit is Hd, 0≤Hd≤H / 2, and H is the vertical height of the cooling triangle unit.

5. The cross-regulatable cooling delta cell of claim 1, wherein: The fixed end of the roller blind is installed on the vertical fixed shaft, and the moving end of the roller blind is installed on the vertical moving shaft.

6. The cross-regulatable cooling delta cell of claim 1, wherein: The upper edge of the roller blind is installed in the upper horizontal slide and can slide horizontally along the upper horizontal slide, and the lower edge of the roller blind is installed in the lower horizontal slide and can slide horizontally along the lower horizontal slide.

7. The cross-regulatable cooling delta cell of claim 1, wherein: The upper end of the roller blind vertical strip is flush with the upper edge of the roller blind, the lower end of the roller blind vertical strip is flush with the lower edge of the roller blind, and the horizontal distance between the adjacent two roller blind vertical strips is Lj, 0<Lj≤L-Ln.

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