CN113048810A

CN113048810A - Closed cooling tower

Info

Publication number: CN113048810A
Application number: CN202110521157.9A
Authority: CN
Inventors: 张永庆; 黄兴存
Original assignee: Shenzhen Aikemike Technology Co ltd
Current assignee: Shenzhen Aikemike Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-06-29

Abstract

The invention discloses a closed cooling tower which comprises a cooling tower main body and a cooler arranged in the cooling tower main body, wherein the cooler comprises a plurality of cooling units arranged in parallel, a medium flow passage is arranged in each cooling unit, the medium flow passage comprises a plurality of sub-flow passages which are parallel to each other, and the sub-flow passages are communicated in sequence. According to the invention, the medium flow channel in the cooling unit is arranged into a plurality of sub-flow channels which are sequentially communicated and parallel, so that the width of each sub-flow channel is narrower, and if the flow of the medium to be cooled flowing into the medium flow channel is constant, the width of the sub-flow channel is narrower, the pressure is higher, the flow speed is higher, and meanwhile, the path through which the medium to be cooled flows is longer, so that the medium to be cooled can be subjected to sufficient heat exchange, and the cooling effect is greatly improved.

Description

Closed cooling tower

Technical Field

The invention relates to the technical field of cooling equipment, in particular to a closed cooling tower.

Background

The closed cooling tower is a cooling device which utilizes evaporation latent heat of water to take away heat of a medium to be cooled, and the closed cooling tower cools the medium through a cooler, but at present, the cooler with a plate-type structure has large width of a medium flow channel in the cooler, so that the pressure of the medium is small when the flow of the medium is constant, the flow speed is slow, the path of the flow channel is short, the medium is difficult to exchange heat with cooling water or cold air sufficiently, the utilization rate of the cooling water and the air is insufficient, and the cooling effect is poor.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a sealed cooling tower to solve the problem in the prior art that the flow velocity of a medium with a large medium flow channel width in the flow channel is slow and the flow path is short, resulting in poor cooling effect.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a closed cooling tower comprises a cooling tower main body and a cooler arranged in the cooling tower main body, wherein the cooler comprises a plurality of cooling units which are arranged in parallel, a medium flow passage is arranged in each cooling unit, the medium flow passage comprises a plurality of sub-flow passages which are parallel to each other, and the sub-flow passages are communicated in sequence.

The closed cooling tower is characterized in that the cooling unit comprises two plates which are mutually abutted to form the cooling unit.

And in the closed cooling tower, a supporting area is arranged between every two adjacent sub-runners, and the end parts of every two adjacent sub-runners are communicated at one end of the supporting area.

In the closed cooling tower, the plate comprises a plurality of rows of flow channel areas arranged in parallel, and in the cooling unit, the flow channel areas opposite to each other on the two plates form the sub-flow channels.

The closed cooling tower, wherein the flow channel area comprises a plane part and a groove part, and the plane part and the groove part are alternately arranged;

in the cooling unit, the groove parts on the two plates are arranged in a staggered manner, and the groove part on one plate is simultaneously communicated with two adjacent groove parts on the other plate.

In the closed cooling tower, the opposite groove parts of two adjacent cooling units are abutted, and an external flow channel is arranged between the two adjacent cooling units.

The closed cooling tower is characterized in that the groove portion comprises a bottom wall and two inclined walls, two sides of the bottom wall are respectively connected with the two inclined walls, and one side, back to the bottom wall, of each inclined wall is connected with the plane portion.

The closed cooling tower, wherein the width of the bottom wall is less than the width of the planar portion.

The cooling unit is further provided with a medium inlet and a medium outlet, one end of the medium flow channel is communicated with the medium inlet, and the other end of the medium flow channel is communicated with the medium outlet.

The closed cooling tower, wherein when the number of the sub-runners is even, the medium inlet and the medium outlet are positioned on the same side of the cooling unit;

when the number of the sub-runners is odd, the medium inlet and the medium outlet are respectively positioned at two sides of the cooling unit.

Has the advantages that: according to the invention, the medium flow channel in the cooling unit is arranged into a plurality of sub-flow channels which are sequentially communicated and parallel, so that the width of each sub-flow channel is narrower, and if the flow of the medium to be cooled flowing into the medium flow channel is constant, the width of the sub-flow channel is narrower, the pressure is higher, the flow speed is higher, and meanwhile, the path through which the medium to be cooled flows is longer, so that the medium to be cooled can be subjected to sufficient heat exchange, and the cooling effect is greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of the closed cooling tower provided by the present invention;

FIG. 2 is a schematic view, partly in section, of the cooler provided by the present invention;

FIG. 3 is a schematic structural view of the plate provided by the present invention;

the labels in the figures are: 10: cooling tower main body, 20: cooler, 30: cooling unit, 40: medium flow passage, 50: sheet, 60: support zone, 70: flow channel region, 71: planar portion, 72: groove portion, 721: bottom wall, 722: inclined wall, 80: communication groove, 90: medium inlet, 100: medium outlet, 110: air inlet, 120: a fan, 130: spray system, 131: shower, 132: water pipe, 133: spray pump, 134: a water tray.

Detailed Description

The present invention provides a closed cooling tower, which is described in further detail below with reference to the accompanying drawings and examples, in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should also be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The invention will be further explained by the description of the embodiments with reference to the drawings.

The embodiment provides a closed cooling tower, as shown in fig. 1 to 3, the closed cooling tower comprises a cooling tower main body 10 and a cooler 20 arranged in the cooling tower main body 10, wherein the cooler 20 is used for cooling a medium to be cooled; the cooler 20 comprises a plurality of cooling units 30 arranged in parallel, and the plurality of cooling units 30 are sequentially abutted; the cooling unit 30 is provided with a medium flow channel 40 therein, the medium flow channel 40 includes a plurality of sub flow channels parallel to each other, and the plurality of sub flow channels sequentially flow, that is, the tails of the adjacent medium flow channels 40 are communicated, for example, if the cooling unit 30 includes 3 sub flow channels, the 3 sub flow channels are sequentially communicated, and the whole cooling unit is in an S shape. Since the medium flow path 40 of the cooling unit 30 is provided as a plurality of sub-flow paths which are sequentially communicated, the width of each sub-flow path is narrower when the width of the cooling unit 30 is constant, and the length of the medium flow path 40 is equal to the sum of the lengths of the plurality of sub-flow paths.

In the present invention, the medium flow channel 40 in the cooling unit 30 is provided with a plurality of sequentially communicated and parallel sub-flow channels, so that each of the sub-flow channels has a narrow width, and if the flow rate of the medium to be cooled flowing into the medium flow channel 40 is constant, the width of the sub-flow channel is narrow, the pressure is high, the flow rate is high, and meanwhile, the path through which the medium to be cooled flows is long, so that the medium to be cooled can be subjected to sufficient heat exchange, and the cooling effect is greatly improved.

The cooling unit 30 comprises two plates 50, the two plates 50 abutting each other to form the cooling unit 30. A supporting area 60 is arranged between every two adjacent sub-runners, and the end parts of every two adjacent sub-runners are communicated with each other at one end of the supporting area 60; the support region 60 is a sealing region, that is, two adjacent sub-runners are separated, and a certain distance is provided between one end of the support region 60 and the edge of the cooling unit 30, so that the two adjacent sub-runners can be communicated.

As shown in fig. 3, the plate 50 includes a plurality of flow channel regions 70 arranged in parallel, and in the cooling unit 30, the flow channel regions 70 opposite to each other on two plates 50 form the sub-flow channels. Further, the flow channel region 70 includes a plurality of flat portions 71 and a plurality of groove portions 72, and the flat portions 71 and the groove portions 72 are alternately arranged; in the cooling unit 30, the groove portions 72 of two plates 50 are arranged in a staggered manner, and the groove portion 72 of one plate 50 is simultaneously communicated with two adjacent groove portions 72 of the other plate 50, that is, the medium flow channel 40 extends in a curved manner, rather than a straight line, so that the flow path of the medium to be cooled in the medium flow channel 40 is further extended, and the medium to be cooled meets resistance when flowing in the medium flow channel 40 to form a turbulent flow, thereby further improving the cooling effect of the medium to be cooled.

The end portions of two adjacent flow channel regions 70 are provided with a plurality of communicating grooves 80, in the cooling unit 30, the groove portions 72 on two plates 50 are arranged in a staggered manner, and for the communicating groove 80 closest to the supporting region 60, one side of the communicating groove 80 can be communicated with the communicating groove 80 on the other plate 50, and the other side can be simultaneously communicated with the two groove portions 72 in the adjacent flow channel region 70 on the other plate 50, and the two groove portions 72 in the adjacent flow channel region 70 are the two groove portions 72 closest to the communicating groove 80, so that the communication of the adjacent sub-flow channels can be realized.

In two adjacent cooling units 30, the opposite groove portions 72 are in contact with each other, an external flow channel 140 is provided between two adjacent cooling units 30, and the external flow channel 140 is directly communicated with the external environment, so that both air and water can be introduced into the external flow channel 140 to cool the medium to be cooled in the medium flow channel 40.

The groove portion 72 includes a bottom wall 721 and two inclined walls 722, both sides of the bottom wall 721 are respectively connected to the two inclined walls 722, a side of the inclined wall 722 facing away from the bottom wall 721 is connected to the planar portion 71, and the bottom wall 721 is parallel to the planar portion 71; in two adjacent cooling units 30, the opposing bottom walls 721 abut against each other, and non-abutting areas on the left and right sides of the bottom walls 721 are the external flow channels 140 for air and water to flow through.

In an embodiment, the width of the bottom wall 721 is smaller than the width of the planar portion 71, so that the spatial volume of the medium flow channel 40 is smaller, the spatial volume of the external flow channel 140 is larger, and the external flow channel 140 is larger than the volume of the medium flow channel 40, so that the medium flow channel 40 can be further narrowed, the flow rate of the medium to be cooled in the medium flow channel 40 is larger, and the space of the external flow channel 140 is larger, so that more air and water can be introduced into the external space, thereby greatly improving the cooling effect.

The cooling unit 30 is further provided with a medium inlet 90 and a medium outlet 100, one end of the medium channel 40 is communicated with the medium inlet 90, the other end is communicated with the medium outlet 100, the medium inlet 90 is used for introducing a medium to be cooled, and the medium outlet 100 is used for allowing the cooled medium to flow out. Further, when the number of the sub-flow passages is an even number, the medium inlet 90 and the medium outlet 100 are located on the same side of the cooling unit 30, and when the number of the sub-flow passages is an odd number, the medium inlet 90 and the medium outlet 100 are located on two sides of the cooling unit 30, respectively. The number of the sub-flow channels may be odd or even, which is not limited in this embodiment.

As shown in fig. 1, the sealed cooling tower further includes an air inlet 110 disposed on the cooling tower main body 10, the air inlet 110 is used for introducing cold air, and the air inlet 110 is located below the cooler 20, so that the cold air is introduced from below the cooler 20, passes through the cooler 20, and is blown out from above the cooling tower main body 10; a fan 120 is disposed above the cooling tower body 10 to suck out cool air introduced from below the cooler 20 from above. Still be provided with spray system 130 on cooling tower main part 10, spray system 130 includes spray thrower 131, water pipe 132, spray pump 133 and water tray 134, the one end of water pipe 132 is connected the spray thrower 131 other end is connected water tray 134, spray pump 133 sets up on water pipe 132, water tray 134 is used for adorning cold water, spray pump 133 is used for carrying cold water in the water tray 134 to spray thrower 131, spray thrower 131 has a plurality ofly, and the interval sets up the top of cooler 20, spray thrower 131 sprays out cold water downwards, cold water pass through the outside passageway of cooler 20, in order to treat the cooling medium cool off, the cold water becomes hot after the cooling, the hot air that lets in from cooler 20 below then will be by the evaporation of cold water heat transfer behind the hot steam to guarantee the cooling effect.

In summary, the present invention discloses a closed cooling tower, which includes a cooling tower main body and a cooler disposed in the cooling tower main body, wherein the cooler includes a plurality of cooling units disposed in parallel, the cooling units have medium channels therein, the medium channels include a plurality of sub-channels parallel to each other, and the sub-channels are sequentially communicated with each other. According to the invention, the medium flow channel in the cooling unit is arranged into a plurality of sub-flow channels which are sequentially communicated and parallel, so that the width of each sub-flow channel is narrower, and if the flow of the medium to be cooled flowing into the medium flow channel is constant, the width of the sub-flow channel is narrower, the pressure is higher, the flow speed is higher, and meanwhile, the path through which the medium to be cooled flows is longer, so that the medium to be cooled can be subjected to sufficient heat exchange, and the cooling effect is greatly improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A closed cooling tower comprises a cooling tower main body and a cooler arranged in the cooling tower main body, and is characterized in that the cooler comprises a plurality of cooling units which are arranged in parallel, a medium flow passage is arranged in each cooling unit, each medium flow passage comprises a plurality of sub-flow passages which are parallel to each other, and the plurality of sub-flow passages are communicated in sequence.

2. The containment cooling tower of claim 1, wherein the cooling unit comprises two plates abutting each other to form the cooling unit.

3. The sealed cooling tower according to claim 2, wherein a support area is provided between two adjacent sub-flow passages, and at one end of the support area, the ends of two adjacent sub-flow passages are connected.

4. The closed cooling tower according to claim 2, wherein said plates comprise a plurality of rows of flow channel regions arranged in parallel, and in said cooling unit, said flow channel regions of two of said plates facing each other form said sub-flow channels.

5. The closed cooling tower according to claim 4, wherein the flow field comprises flat portions and recessed portions, the flat portions and the recessed portions being alternately disposed;

6. The sealed cooling tower according to claim 5, wherein the opposing recessed portions of two adjacent cooling units are in abutting engagement, and an external flow passage is provided between the two adjacent cooling units.

7. The closed cooling tower according to claim 5, wherein the recessed portion includes a bottom wall and two inclined walls, two sides of the bottom wall are respectively connected to the two inclined walls, and a side of the inclined wall facing away from the bottom wall is connected to the planar portion.

8. The closed cooling tower according to claim 7, wherein the width of the bottom wall is smaller than the width of the planar portion.

9. The sealed cooling tower according to claim 1, wherein the cooling unit further comprises a medium inlet and a medium outlet, and one end of the medium channel is communicated with the medium inlet, and the other end of the medium channel is communicated with the medium outlet.

10. The sealed cooling tower according to claim 9, wherein when the number of the sub-flow passages is an even number, the medium inlet and the medium outlet are located on the same side of the cooling unit;