CN113063304A - Fog dispersal device and cooling tower - Google Patents

Abstract

The utility model provides a fog dispersal device and cooling tower, relates to cooling tower technical field, and this fog dispersal device includes: a first flow path and a second flow path which are stacked and exchange heat between the first air flow and the second air flow; a first inflow port that introduces a first airflow flowing in from one side in the width direction of the mist eliminator into the first flow path; a second inflow port for introducing a second air flow flowing from the bottom of the mist eliminator into the second flow path; a first outflow port that discharges the first airflow flowing out from the first flow path to above the defogging device; and the second airflow flowing out of the second flow path is discharged to a second outflow port above the fog dispersal device, and the fog dispersal device can play a role in saving water and dispersing fog. The cooling tower comprises the fog dispersal device.

Description

Fog dispersal device and cooling tower

Technical Field

The invention relates to the technical field of cooling towers, in particular to a cooling tower with water-saving and fog-dispersing requirements.

Background

In a cooling tower of the prior art, an air mixing portion, a water collecting mist capturing portion, a spraying portion, a heat exchanging portion, an air introducing portion, and a water collecting portion are provided in the cooling tower body in this order from top to bottom. The upper part of the body is provided with an exhaust part which comprises an air duct and an induced draft fan arranged in the air duct. And spraying water from the spraying part to the heat exchange part, wherein the heat exchange part is formed by laminating a plurality of filler sheets, the sprayed water flows from top to bottom, and on the other hand, air is sucked into the cooling tower from an air inlet part at the lower part of the cooling tower, flows from bottom to top, and transfers heat and mass with the sprayed hot water, so that the temperature of the hot water is reduced.

And the air after the heat exchange with the water is discharged from the wind barrel of the cooling tower. The discharged air is saturated humid air, and after the air is mixed with cold air outside the tower, the temperature is reduced, the saturated moisture content is reduced, and then supersaturated water vapor can be condensed into mist. Particularly in winter in high latitude areas, the exhaust of the cooling tower can form dense fog, further rain and snow fall, the environment is adversely affected, and more seriously, the equipment and the ground are frozen to form freeze injury.

Chinese patent CN106225507B discloses a condensation type fog dispersal water saving fixtures, including the main tower, the main tower bilateral symmetry of institute is equipped with two sets of auxiliary towers, the auxiliary tower is located the upper portion of main tower both sides, and every group auxiliary tower is hugged closely the side wall of main tower by a plurality of axial fan and tube bundle body and arranges side by side and forms, the auxiliary tower arrange for double multiseriate or arrange for single row two, the inclined end of auxiliary tower and the main tower lateral wall through connection that the slope set up are passed through to the auxiliary tower bottom. The invention has the advantages of solving the problems of incomplete demisting, water saving, large additional resistance, seriously weakened capacity of the original open cooling tower and the like of the existing demisting device of the open cooling tower. However, the above technical solutions have the following problems:

on one hand, the auxiliary towers are arranged on two sides of the main tower, and the fans are additionally arranged, so that when the auxiliary towers are required to be defogged, more fan energy is consumed for pushing air to pass through the tube bundle body, the operation cost of the cooling tower is obviously increased, the main tower fans inevitably have influence on the hot and humid air suction of the auxiliary tower fans, and the energy consumption of the auxiliary tower fans is further increased; on the other hand, external dry cold air enters the main tower after absorbing heat through the transverse channel and flows out upwards to form a dry warm air group, hot and humid air enters the module from the lower part of the module, the wet warm air flows out continuously and converges into a wet warm air group after releasing heat, reducing temperature and condensing water, and in order to ensure the fog dissipation effect, the dry warm air and the wet warm air need to be uniformly mixed to reduce the moisture content and become an unsaturated state. The amount of the dry warm air group and the wet warm air group is large, and if the dry warm air group and the wet warm air group are mixed uniformly, the dry warm air group and the wet warm air group need to flow upwards for a long distance, namely, a high mixing space needs to be provided above the module. Therefore, the cooling tower is significantly increased in height and cost. However, the height of the old tower cannot be increased.

Disclosure of Invention

The invention provides a fog dispersal device and a cooling tower aiming at the technical problems in the prior art, wherein the air after heat exchange with water is subjected to heat exchange with external cold air which flows into the cooling tower and does not exchange heat with the air in the fog dispersal device, so that the effects of water saving and fog dispersal are achieved.

To achieve the above technical object, one aspect of the present invention provides a fog dispersal device, including: a first flow path and a second flow path which are stacked and exchange heat between the first air flow and the second air flow; a first inflow port that introduces a first airflow that flows in from one side in the width direction of the defogging device into the first flow path; a second inlet for introducing a second air flow from the bottom of the mist eliminator into the second flow path; discharging the first airflow flowing out of the first flow path to a first outflow port above the defogging device; discharging a second airflow flowing out of the second flow path to a second outflow port above the defogging device.

Preferably, the first outflow port and the second outflow port are alternately stacked.

Preferably, the width of the first outlet is substantially the same as the width of the mist eliminator, and the width of the second outlet is substantially the same as the width of the mist eliminator.

Preferably, the fog dispersal device comprises a first fog dispersal sheet and a second fog dispersal sheet which limit the first and second flow paths, wherein the first fog dispersal sheet and the second fog dispersal sheet are alternately stacked.

Preferably, the thickness of the first outflow opening gradually increases from one side edge of the width direction of the fog dispersal device to the other side.

Preferably, the height of the first inlet opening is substantially the same as the height of the mist eliminator, and the width of the second inlet opening is substantially the same as the width of the mist eliminator.

Preferably, the thickness of the first inflow port is equal to or greater than the thickness of the second inflow port.

Preferably, in the second flow path, a plurality of downstream connecting parts are formed on the fog dispersal device; the plurality of downstream connections divide the second flowpath into a plurality of downstream channels that occupy substantially the full width of the mist eliminator.

Preferably, an introduction portion communicating with the first flow path is formed on one side in the width direction of the mist eliminator.

Preferably, the thickness of the inlet of the introduction part is larger than the thickness of the outlet of the introduction part.

Preferably, a transition portion is formed between the introduction portion and the first flow path.

Preferably, the thickness of the transition portion gradually decreases from the inflow port to the outflow port thereof.

Preferably, the thickness of the inlet of the transition portion is greater than the thickness of the inlet of the first flow path, and the thickness of the outlet of the transition portion is smaller than the thickness of the outlet of the introduction portion.

Preferably, the first and second defogging sheets have a continuous portion folded in a direction opposite to each other from the outlet of the inlet portion.

Preferably, the continuous portion is formed with at least one bending point, and in the transition portion, a thickness between the bending point on the first defogging sheet and the corresponding bending point on the second defogging sheet is smaller than a thickness of the inflow port of the transition portion and larger than a thickness of the outflow port of the transition portion.

Preferably, the bending point on the transition part divides the continuous part into at least two parts, and the part close to the inflow port of the transition part forms an included angle alpha with the vertical plane₁Is larger than the included angle alpha between the part close to the flow outlet of the transition part and the vertical plane₂。

Preferably, the mist eliminator has a flow guide structure for guiding the first air flow flowing in from one side of the width of the mist eliminator to the range of the substantially full width of the mist eliminator.

Preferably, the flow guide structure includes a plurality of first flow guide protruding ribs formed in the first flow path, and the plurality of first flow guide protruding ribs are intermittently disposed and extend from the first inlet to a lower region of the first flow path.

Preferably, the flow guide structure comprises a plurality of second flow guide convex edge parts formed in the first flow path, and the second flow guide convex edge parts divide the upper part of the fog dispersal device into a plurality of independent flow guide cavities.

Preferably, the second flow guiding convex edge part is formed into a V shape in a cross section parallel to the plane direction of the fog dispersal device, and the opening of the V shape faces away from the first flow inlet.

Preferably, the internal angle β of the V-shape gradually increases from one side near the first inlet to the other side.

Preferably, the top end of the guide cavity is formed with a guide groove for the first air flow to pass through, and the rib spacing of the guide grooves gradually increases from one side close to the first inlet to the other side.

Preferably, the flow guide structure includes a third flow guide convex edge portion formed in the first flow path, and a flow passage for airflow is formed between the third flow guide convex edge portion and a second flow guide convex edge portion close to one side of the first flow inlet.

Preferably, a plurality of flow dividing convex edge portions are arranged in the first flow path and above the third flow guiding convex edge portion.

Preferably, the flow guiding structure includes a fourth flow guiding convex edge portion formed in the first flow path, and the fourth flow guiding convex edge portion is located on a side, far away from the first flow inlet, of the first flow path.

Another aspect of the present invention provides a cooling tower, comprising the fog dispersal device described in any of the above technical aspects.

Yet another aspect of the present invention provides a cooling tower comprising: a body including an air inlet formed at a lower portion thereof and allowing external air to flow in, and an air discharge portion formed at an upper portion thereof and discharging an air current; a heat exchange portion between the air inlet and the exhaust portion; the spraying part is positioned above the heat exchange part and is used for spraying a medium to the heat exchange part; the fog dissipation part is positioned above the spraying part; the fog dispersal part comprises a fog dispersal device; the fog dispersal device comprises: a first flow path and a second flow path which are stacked and exchange heat between the first air flow and the second air flow; a first inflow port that introduces a first airflow that flows in from one side in the width direction of the defogging device into the first flow path; a second inlet for introducing a second air flow from the bottom of the mist eliminator into the second flow path; discharging the first airflow flowing out of the first flow path to a first outflow port above the defogging device; discharging a second airflow flowing out of the second flow path to a second outflow port above the defogging device; and a cold air introduction part formed at a side of the fog dispersal part; the cold air inlet part is communicated with a first flow passage in the fog dispersal device; the cold air introducing part extends in the horizontal direction and penetrates through at least one side wall of the cooling tower air chamber to be communicated with the outside air; wherein the first air flow flows into the first flow path from the cold air introduction part; the second air flow flows through the heat exchange part and the spraying part in sequence from the air inlet and then flows into the second flow path.

Preferably, the cold air introduction part includes a first valve through which the cold air introduction part communicates with the outside air.

Preferably, the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

Preferably, the cold air introduction part includes a third valve through which the cold air introduction part communicates with outside air; the air mixing unit is communicated with the space in the tower below the third valve through the third valve.

Preferably, the third valve comprises a first valve plate and a second valve plate, and the first valve plate and the second valve plate are pivoted on the cold air introducing part; wherein, the width of the first valve plate and the second valve plate is the same as or different from the height of the cold air inlet part.

Preferably, when the widths of the first and second valve plates are the same as the height of the cold air introduction part, the first and second valve plates are turned in the same direction to open or close the third valve.

Preferably, when the widths of the first and second valve plates are different from the height of the cold air inlet, the widths of the first and second valve plates respectively occupy half of the height of the cold air inlet; the first valve plate and the second valve plate are turned back or opposite to each other, so that the third valve is opened or closed.

Preferably, an extension part is arranged at the cold air inlet part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

Preferably, a fourth valve is disposed on a side of the extension portion facing away from the cooling tower, and the cold air inlet portion is communicated with the outside air through the fourth valve.

Preferably, an extension part is arranged at the cold air inlet part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

Preferably, a fourth valve is disposed on a side of the extension portion facing away from the cooling tower, and the cold air inlet portion is communicated with the outside air through the fourth valve.

Preferably, the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

Preferably, the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

Preferably, an extension part is arranged at the cold air inlet part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

Preferably, a fourth valve is disposed on a side of the extension portion facing away from the cooling tower, and the cold air inlet portion is communicated with the outside air through the fourth valve.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

the first outflow port and the second outflow port which are alternately stacked are formed on the upper side of the fog dispersal device, so that the first airflow flowing out through the first outflow port and the second airflow flowing out through the second outflow port can be uniformly mixed, and the fog dispersal effect is enhanced.

Drawings

FIG. 1 is a schematic sectional elevation view of a cooling tower according to an embodiment of the present invention;

fig. 2 is a disassembled view of a part of the defogging device in the present embodiment;

fig. 3 is a perspective view of a part of the defogging device in the present embodiment;

fig. 4 is a perspective view of a part of a defogging device according to a second embodiment;

fig. 5 is a front view of a first defogging sheet in the defogging device of the present embodiment;

fig. 6 is a perspective view of a second defogging sheet in the defogging device of the present embodiment;

fig. 7 is a front view of a part of a mist eliminator of a third embodiment;

fig. 8 is a plan view of a part of the mist eliminator of this embodiment;

fig. 9 is a schematic configuration of a transition portion of the mist eliminator of this embodiment;

fig. 10 is a top view of a portion of a fifth embodiment of a mist eliminator;

fig. 11 is a perspective view of a part of a defogging device according to a sixth embodiment;

fig. 12 is a front view of a first defogging sheet in the defogging device of the present embodiment;

fig. 13 is a perspective view of a second defogging sheet in the defogging device of the present embodiment;

fig. 14 is a rear view of the first defogging sheet in the defogging device of the present embodiment;

fig. 15 is a front view of a second defogging sheet in the defogging device according to the present embodiment;

FIG. 16 is a schematic sectional elevation view of a cooling tower according to a seventh embodiment;

FIG. 17 is a schematic sectional elevation view of a cooling tower according to an eighth embodiment;

FIG. 18 is a schematic sectional elevation view of a cooling tower according to a ninth embodiment, wherein the third valve is open;

FIG. 19 is a schematic sectional elevation view of the cooling tower of the present embodiment, with the third valve closed;

FIG. 20 is a schematic sectional elevation view of a cooling tower according to a tenth embodiment;

FIG. 21 is a schematic sectional elevation view of a cooling tower according to an eleventh embodiment;

FIG. 22 is a sectional elevational view of a cooling tower according to a twelfth embodiment, with a third valve closed;

FIG. 23 is a schematic sectional elevation view of a cooling tower according to a thirteenth embodiment;

FIG. 24 is a schematic sectional elevation view of a cooling tower in accordance with a fourteenth embodiment, wherein the mist eliminator is in an undrawn state;

fig. 25 is a schematic sectional elevation view of the cooling tower of the present embodiment, in which the defogging device is in a pulled-out state.

Description of the reference numerals

1000 cooling tower; 1010 a body; 1020 an exhaust part; 1021 an air duct; 1022 of the induced draft fan; 1100 an air mixing part; 1200 a spray part; 1211 a spray head; 1300 a heat exchanging section; 1400 air introduction part; 1500 water collecting part; 1600 fog dispersal parts; 1700 cold air introducing part;

1601. 1602 a fog dispersal device;

1600A first flow path; 1600B second flow path; 1610 a first inlet; 1620 a second inlet port; 1630 a functional section; 1640 a first outflow port; 1650 a second outlet;

A. a' a first fog dispersal sheet; B. b' a second fog dispersal sheet; ZB1 first fold; a second fold of ZB 2; ZB3 third folding;

2601 a fog dispersal device;

2610 a first inlet; 2631A, 2631B bar-shaped protrusions;

A. a' a first fog dispersal sheet; B. b' a second fog dispersal sheet; a1, a2, B1, B2 offset;

3601 a fog dispersal device;

3600A a first flow path; 3600B a second flow path; 3610 a first inlet; 3660 an introduction part; 3661a transition part; 3661A, 3661B continuous portion;

A. a' a first fog dispersal sheet; B. b' a second fog dispersal sheet; PA and PB deflection sections; a first bending part WA1 and WB 1; a second bending part WA2 and WB 2;

4601 a fog dispersal device;

4610 a first inlet; 4640 a first outlet; a, a first fog dispersal sheet; b, a second fog dispersal sheet; a first sealing part of FK 1; a second closure portion of FK 2;

5601 a defogging device;

5610 a first inlet;

5632A, 5632B first guide ribs; 5633A and 5633B are second guide ribs; 5634A, 5634B; 5635A, 5635B; 5636 flow guide grooves; 5637A, 5637B third guide convex ribs; 5638A and 5638B; 5639A, 5639B fourth guide ribs; 5670 a flow-through channel; a, a first fog dispersal sheet; b, a second fog dispersal sheet;

6000 cooling towers;

6022 introducing a draught fan; 6200 a spraying part; 6211 a spray head; 6601. 6602 defogging device; 6700 cold air introducing part; 6701 first valve; 6702 second valve; c, wet and hot air roadway;

7000 cooling tower; 7601. 7602 fog dispersing device; 7700 introducing cold air; 7702 a second valve; 7703a third valve; 7703A first valve plate, 7703B second valve plate; 7704 an extension; 7705 fourth valve;

c, wet and hot air roadway; d, dry cold air laneway; e, wet and hot air roadway; g, a high-efficiency flow path; f module moving space;

8000 a cooling tower; 8601. 8602 a fog dispersal device; 8700 a cold air introducing part; 8702 a second valve; 8704 an extension portion; 8705 fourth valve;

c, wet and hot air roadway; f module moving space.

Detailed Description

Other objects and advantages of the present invention will become apparent by the following explanation of preferred embodiments of the present invention.

[ first embodiment ] to provide a liquid crystal display device

Fig. 1 shows a schematic structure of each part in a cooling tower 1000 according to the present embodiment. Fig. 2 shows X and Y directions, where the X direction is the width direction of the fog dispersal devices 1601, 1602, and the Y direction is the stacking direction of the fog dispersal sheets, that is, the thickness direction of the outflow air curtain and the outflow air curtain, and also the length direction of the fog dispersal devices 1601, 1602.

Fig. 1 is a schematic configuration diagram of a cooling tower 1000 according to a first embodiment of the present invention. As shown in fig. 1, an air mixing unit 1100, a mist eliminating unit 1600, a shower unit 1200, a heat exchanging unit 1300, an air introducing unit 1400, and a water collecting unit 1500 are provided in a main body 1010 of a cooling tower 1000 from top to bottom. An exhaust part 1020 is provided at an upper portion of the body 1010, and the exhaust part 1020 includes an air duct 1021 and an induced draft fan 1022 provided in the air duct 1021. An air inlet through which external cold air flows is formed at a lower portion of the body 1010, and the external cold air sequentially passes through the heat exchanging part 1300 and the shower part 1200.

According to the cooling tower 1000, the plurality of sets of nozzles 1211 disposed above the shower portion 1200 shower hot water downward, and the hot water drops in the internal space of the shower portion 1200 and enters the heat exchange portion 1300. In the heat exchanger 1300, hot water is heat-exchanged with cold air flowing in from the bottom of the heat exchanger 1300, flows out from the bottom of the heat exchanger 1300, passes through the air inlet 1400, falls to the water collector 1500, and is collected from the bottom of the main body 1010 of the cooling tower 1000. The heat exchange portion 1300 may employ conventional packing sheets. A louver may be disposed at the air introduction portion 1400, and the amount of dry cool air flowing from the air introduction portion 1400 is adjusted by adjusting the size of the louver, and the amount of hot and humid air entering the defogging devices 1601 and 1602 is further adjusted to adjust the defogging effect. For example, when the ambient temperature is low, the air inlet of the louver may be adjusted to be small, so that the amount of dry and cool air in the cool air inlet 1700 is relatively large, and the fog dissipation effect is enhanced.

Thus, dry and cold air outside the tower can enter the fog dispersal part 1600 through the side surface of the cooling tower 1000, and flows through the first flow path 1600A of the fog dispersal device 1601, 1602 to the air mixing part 1100; the dry cool air flowing in from the air introduction part 1400 flows through the heat exchange part 1300 for spraying hot water to contact with the hot water and exchange heat to form hot and humid air, and the hot and humid air also flows upward to the second flow path 1600B of the fog dispersal devices 1601, 1602 to the air mixing part 1100 to be mixed with the dry cool air, and after mixing, the hot and humid air is changed from a saturated state to an unsaturated state, and then is discharged out of the cooling tower 1000 without fog, thereby realizing fog dispersal. In the present embodiment, the existing structure of the cooling tower 1000 is utilized, and compared with the prior art, no new fan is added, thereby further reducing the energy consumption of the cooling tower 1000.

In the defogging devices 1601 and 1602, when the hot and humid air in the second flow path 1600B contacts the cold surface of the first flow path 1600A, condensed water droplets are formed on the surface of the second flow path 1600B. These water droplets are the result of condensation of the hot humid gas, which results in a reduction of water vapour in the hot humid gas. The condensed water drops back to the water collecting part 1500, and water saving is achieved. The fog dispersal portion 1600 may include two fog dispersal devices 1601, 1602, two fog dispersal devices 1601, 1602 are arranged in the horizontal direction relatively, and the air intake of dry and cool wind sets up dorsad. The density of the dry warm air and the wet warm air in the functional part 1630 of the defogging device 1601 or 1602 is smaller than that of the ambient air, so the dry warm air and the wet warm air in the functional part 1630 are subjected to the buoyancy effect, and the upward movement of the dry warm air and the upward movement of the wet warm air are promoted. The outflow direction of the dry warm air and the wet warm air is consistent with the buoyancy direction, so that the buoyancy effect can be fully exerted, the suction force required by the induced draft fan 1022 can be relatively reduced, and the reduction of the operation energy consumption is facilitated. The sides of the fog dispersal devices 1601, 1602 can be straight sides, making full use of space.

Next, the mist eliminator 1601 of the present embodiment will be described by taking the mist eliminator 1601 (either one of the mist eliminators 1601, 1602) as an example.

Fig. 2 and 3 show that the defogging device 1601 is formed by stacking a plurality of defogging sheets, and the length of the defogging device 1601 can be changed by increasing or decreasing the number of stacked defogging sheets.

The defogging device 1601 generally includes a first inlet 1610, a second inlet 1620, a functional portion 1630, a first outlet 1640, and a second outlet 1650. Wherein, the first inlet 1610 is communicated with an air inlet on the side wall of the cooling tower 1000; the second inlet 1620 is in communication with the space in the column. Both the first and second outflow ports 1640 and 1650 communicate with the air mixing section 1100. The first inlet 1610 introduces the first airflow flowing from one side of the defogging device 1601 in the width direction into the first flow path 1600A, and the first outlet 1640 discharges the first airflow flowing out of the first flow path 1600A above the defogging device 1601; the second inlet 1620 introduces the second airflow flowing in from the bottom of the defogging device 1601 into the second flow path 1600B, and the second outlet 1650 discharges the second airflow flowing out from the second flow path 1600B to the upper side of the defogging device 1601.

In this embodiment, the first outlet 1640 and the second outlet 1650 are formed in a stacked manner on the upper side of the defogging device 1601, the first outlet 1640 and the second outlet 1650 are alternately arranged, and the thicknesses of the first outlet 1640 and the second outlet 1650 in the stacking direction of the defogging sheets are both small, so that the first airflow flowing out through the first outlet 1640 and the second airflow flowing out through the second outlet 1650 can be quickly and uniformly mixed, and the defogging effect is enhanced. In the present embodiment, the first flow channel 1600A and the second flow channel 1600B are stacked and occupy substantially the entire width of the mist eliminator 1601. The dry and cold air enters the fog dispersal device 1601 to absorb heat and raise temperature to become dry and warm air. The damp and hot air enters the fog dispersal device 1601 to release heat and cool to become damp and warm air. The flow directions of the wet heating air and the dry warm air outlet are consistent; the cross section of the outlet of each channel is wide and thin, so that the outlet of the dry warm air is in a wide and thin air curtain, and the outlet of the wet warm air is in a wide and thin air curtain. According to the jet flow theory, the air curtain and the air curtain with the same flow direction and the same width are easy to mix, the required mixing distance is short, the required mixing space is short, the tower height can be reduced, and the cost is saved. The tower crane can adapt to the reconstruction of the old tower without increasing the height, thereby reducing the difficulty of the reconstruction of the old tower. The thickness of the first flow path 1600A and the thickness of the second flow path 1600B may or may not be uniform, i.e., the thickness of the first outflow port 1640 and the thickness of the second outflow port 1650 may or may not be uniform. For example, the thickness of the first flow channel 1600A may be made larger than the thickness of the second flow channel 31600B, thereby increasing the flow rate of the dry and cool air and improving the fog dispersal effect.

In addition, the thickness of the first inlet 1610 of the defogging device 1601 is greater than or equal to the thickness of the second inlet 1620, so as to adapt to the amount of dry air and the amount of wet heat. For example, in a region with a low temperature, the thickness of the first inlet 1610 of the fog dispersal device 1601 is larger than that of the second inlet 1620, so that the dry cool air inlet is thicker, and the cool air amount is larger, thereby enhancing the fog dispersal capability.

In the present embodiment, a cool air introducing portion 1700 is provided on the right side of the defogging device 1601，The cool air introducing portion 1700 communicates with the first flow path 1600A in the defogging device 1601. The cool air introduction portion 1700 extends in the X direction through one side wall of the cooling tower 1000 to communicate with the outside air. Therefore, the dry cool air outside the tower can enter the first flow path 1600A of the defogging device 1601 through the cool air introduction portion 1700 (as indicated by the dotted arrow in the figure).

The air flowing from the air inlet 1400 passes through the heat exchanger 1300 and the shower unit 1200 in this order from bottom to top to become hot humid air, and the hot humid air continues to flow upward and enters the second flow channel 1600B in the defogging device 1601 (as indicated by solid arrows in the figure).

The dry and cold air in the first flow path 1600A and the hot and humid air in the second flow path 1600B are separated by the fog dissipation sheet, and heat is transferred through the fog dissipation sheet, so that the hot and humid air in the second flow path 1600B contacts with the cold surface of the first flow path 1600A, and condensation water drops are formed on the surface of the second flow path 1600B.

As shown in fig. 2, the defogging device 1601 includes a first defogging sheet A, A 'and a second defogging sheet B, B' alternately stacked to define a first flow path 1600A and a second flow path 1600B, respectively. The antifogging sheet located on the outermost side of the paper surface as seen in the antifogging apparatus 1601 shown in fig. 2 is the first antifogging sheet a. The left side of the first fog dispersal sheet A in the width direction is bent towards the stacked second fog dispersal sheet B to form a first folded edge ZB1 which covers the gap on the left side of the first fog dispersal sheet A and the second fog dispersal sheet B in the width direction, and the bottom edge of the first fog dispersal sheet A is bent towards the stacked second fog dispersal sheet B to form a second folded edge ZB2 which covers the gap at the bottom of the first fog dispersal sheet A and the second fog dispersal sheet B. Thereby, the first flow path 1600A is formed between the first and second defogging sheets a and B. The two sides of the second defogging sheet B in the width direction are bent towards the first defogging sheet A ' in the stacking direction to form a third bent edge ZB3, so that gaps on the two sides of the second defogging sheet B in the width direction and the stacked first defogging sheet A ' are covered, and a second flow path 1600B is formed between the first defogging sheet B and the second defogging sheet A '. All the fog dispersal sheets are connected and formed in sequence.

In the functional part 1630 of the defogging device 1601, a plurality of protruding points are arranged in the middle regions of the first defogging sheet A, A 'and the second defogging sheet B, B', and the protruding points play roles of positioning, bonding and supporting between the first defogging sheet A, A 'and the second defogging sheet B, B'.

[ second embodiment ]

The present embodiment is an improvement of the mist eliminator in the first embodiment.

The first antifogging sheet a and the second antifogging sheet B are laminated as an example.

As shown in fig. 4, the antifogging sheet located on the outermost side of the paper as seen in the antifogging device 2601 shown in fig. 4 is the first antifogging sheet a.

Fig. 5 is a front view of the first defogging sheet a. As shown in fig. 5, the left edge of the first antifogging sheet a in the width direction is offset from the plane of the base material to the inside of the paper plane to form an offset portion a1, while the bottom edge is offset from the plane of the base material to the inside of the paper plane to form an offset portion a 2. Further, the first antifogging sheet a may be formed with a plurality of ribs projecting outward of the paper surface, and the ribs may extend in the height direction of the first antifogging sheet a. The ribs at the two side edges of the first fog dispersal sheet a in the width direction are continuous long bars, and other ribs may be composed of a plurality of intermittently arranged bar-shaped protrusions 2631A, but are not limited thereto.

Fig. 6 is a perspective view of the second defogging sheet B. The left edge of the second fog dispersal sheet B in the width direction is deviated from the plane of the base material to the direction of the outer side of the paper surface to form a deviation part B1; the bottom edge is offset from the plane of the base material toward the outside of the paper plane to form a offset portion B2. Further, the second antifogging sheet B is formed with a plurality of ribs projecting inward of the paper surface, and the ribs may extend in the vertical direction along the height of the second antifogging sheet B. The ribs at the two edges of the second antifogging sheet B in the width direction are continuous long ribs, and other ribs may be formed by a plurality of strip-shaped protrusions 2631B which are intermittently arranged, but are not limited thereto.

Thereby, a first flow path is formed between the first fog dispersal sheet A and the second fog dispersal sheet B; a second flow path is formed between the second fog dispersal sheet B and the first fog dispersal sheet A'; a first flow path … … is formed between the first defogging sheet a 'and the second defogging sheet B'. Thereby, the first channel and the second channel are alternately stacked.

Taking the first flow path formed between the first fog dispersal sheet A and the second fog dispersal sheet B as an example, the deflection part A1 of the first fog dispersal sheet A and the deflection part B1 of the second fog dispersal sheet B are connected in a sealing way to form a sealed continuous part; the deflection part A2 of the first fog dispersal sheet A and the deflection part B2 of the second fog dispersal sheet B are connected in a sealing way to form a sealed continuous part.

Taking a second flow path formed between the second fog dispersal sheet B and the first fog dispersal sheet A 'as an example, the convex ribs of the first fog dispersal sheet A' and the convex ribs of the second fog dispersal sheet B are connected in a sealing manner to form a downstream continuous part. Preferably, the rib tops of the convex ribs of the first fog dispersal sheets A' can be bonded with the rib tops of the convex ribs of the second fog dispersal sheets B. Thereby, a second flow path is formed between the second defogging sheets B and the first defogging sheets a'.

In addition, the convex ribs at the edge of the second fog dissipation sheet B are correspondingly and hermetically connected with the convex ribs at the edge of the first fog dissipation sheet A ', so that the effects of plugging the side edges and connecting the second fog dissipation sheet B with the first fog dissipation sheet A' to form a second flow path are achieved; a plurality of other protruding muscle on second fog dispersal piece B and first fog dispersal piece A' go up other a plurality of protruding muscle and correspond sealing connection, separate the second flow path for a plurality of following current passageways, avoid the second air current skew to go up so that the edge heat transfer that the second flow path kept away from draught fan 1022 is less under the effort of draught fan 1022, make the second air current flow up-flow through following current passageway, increased heat exchange efficiency.

[ third embodiment ]

The embodiment is a further improvement on the second embodiment, and the thickness of the first inflow opening in the laminated direction of the fog dispersal sheets is increased, so that the thickness of the first inflow opening is increased, and the flow resistance is reduced.

When the mist eliminator is laminated, the first mist eliminating sheet a, the second mist eliminating sheet B, the first mist eliminating sheet a ', and the second mist eliminating sheet B' … … are laminated in this order.

As shown in fig. 7, an introduction portion 3660 is formed on the right side in the width direction of the defogging device 3601, and a first inlet 3610 is formed at the right side edge of the introduction portion 3660. A flared structure is formed in the introduction portion 3660, and the thickness of the first inflow port 3610 is increased and the flow resistance is reduced, compared to the mist eliminator 2601 in the second embodiment.

As shown in fig. 8, the formation method of the flare structure will be described by taking the first defogging sheet a and the second defogging sheet B as an example. The first antifogging sheet a is deflected in the direction opposite to the stacking direction on the right side in the width direction to form a deflection portion PA. However, the deflection direction of the deflection portion PB of the second antifogging sheet B on the right side in the width direction is opposite to the direction of the deflection portion PA of the first antifogging sheet a. As a result, as shown in fig. 8, the first flow path 3600A and the introduction portion 3660 communicating with the first flow path 3600A are formed between the first defogging sheet a and the second defogging sheet B. The inlet 3660 is formed on the right side in the width direction of the defogging device 3601. The deflection portion PB of the second antifogging sheet B and the deflection portion PA of the stacked first antifogging sheet a 'are hermetically connected by bonding or the like, so that a second flow path 3600B is formed between the second antifogging sheet B and the first antifogging sheet a' on one side in the stacking direction.

The thickness of the first inlet 3610 may be adjusted as necessary, for example, the thickness of the introduction portion 3660 may be adjusted by changing the amount of deflection of the deflection portions PA and PB.

[ fourth embodiment ]

The present embodiment is further improved from the third embodiment, and the transition structure of the airflow passing through the introduction portion 3660 is changed, thereby reducing the flow resistance at the transition.

As shown in fig. 8, the transition portion 3661 in the third embodiment is formed directly during the process of deflecting the deflecting portions PA and PB. The downstream cross section of the transition portion 3661 is substantially a trapezoid with a thick inlet and a thin outlet, and the flow resistance is large.

As shown in fig. 9, in the transition portion 3661 of the present embodiment, the thickness through which the airflow passes is gradually reduced, and the flow resistance can be appropriately reduced.

Next, a transition portion 3661 formed between the first defogging sheet a and the second defogging sheet B will be described as an example.

As shown in fig. 9, the offset portion PA of the first antifogging sheet a forms a continuous portion 3661A during the offset process, the offset portion PB of the second antifogging sheet B forms a continuous portion 3661B during the offset process, and a transition portion 3661 is formed between the continuous portion 3661A and the continuous portion 3661B. The continuous portion 3661A of the first antifogging sheet a is formed into a concave-convex shape by bending the base material at least once, and the continuous portion 3661B of the second antifogging sheet B is formed into a concave-convex shape by bending the base material at least once in a direction opposite to the direction of the continuous portion 3661A of the first antifogging sheet a.

In the present embodiment, as shown in fig. 9, the continuous portion 3661A extends from one point (i.e., a bending point) thereof to the continuous portion 3661B by bending the base material once to form the concave-convex shape as an exampleThe continuous portion 3661A is divided into a first bend WA1 and a second bend WA2 by one-side bending in which a first bend WA1 is formed between the bend and one end of the continuous portion 3661A close to the introduction portion, and a second bend WA2 is formed between the bend and one end of the continuous portion 3661A close to the first flow path. An included angle α between the first bending part WA1 and the vertical plane₁Is larger than the included angle alpha between the second bending part WA2 and the vertical plane₂The gradient of the second bending part WA2 is reduced, so that the difficulty of air flow passing is reduced, and the over-flow resistance is reduced. Accordingly, the continuous portion 3661B is bent from a point (bending point) thereof toward the continuous portion 3661A, a first bent portion WB1 is formed between the bending point and one end of the continuous portion 3661B close to the introduction portion 3660, and a second bent portion WB2 is formed between the bending point and one end of the continuous portion 3661B close to the first flow path 3600A. Along the stacking direction of the mist eliminator 3601, the thickness between the bending point on the continuous portion 3661A and the bending point on the continuous portion 3661B should be larger than the thickness of the flow path in the stacking direction and smaller than the thickness of the inlet in the stacking direction. Dividing the continuous portion 3661B into a first bent portion WB1 and a second bent portion WB2, in cooperation with the continuous portion 3661B, reduces the flow resistance of the airflow through the transition portion 3661. The continuous portion 3661A may be bent back toward the continuous portion 3661B or alternatively bent in the direction, and the thickness of the bending point on the continuous portion 3661A and the thickness of the bending point on the continuous portion 3661B in the stacking direction need only be larger than the thickness of the flow path in the stacking direction and smaller than the thickness of the inlet in the stacking direction.

It should be noted that the lengths of the first bent portions WA1, WB1 and the second bent portions WA2, WB2 can be adjusted as needed, for example, when the continuous portion 3661A is bent toward the continuous portion 3661B, the lengths of the first bent portions WA1, WB1 are made smaller than the lengths of the corresponding second bent portions WA2, WB2, so that the airflow from the introduction portion 3660 through the transition portion 3661 enters the flow path more smoothly to reduce the flow resistance.

Similarly, when the continuous portion 3661A is formed by bending n (n > 1) times, n bending points are formed on the continuous portion 3661A to divide the continuous portion 3661A into n +1 portions, and the gradient of the n +1 portions gradually decreases from the upstream to the downstream of the airflow; accordingly, n bending points are formed on the continuous portion 3661B to divide the continuous portion 3661B into n +1 portions, the bending direction of the n +1 portions is opposite to that of the continuous portion 3661A, and the gradient of the n +1 portions is gradually reduced from the upstream to the downstream of the airflow, so that the continuous portion 3661A is matched to reduce the flow resistance. Each bending point on the continuous portion 3661A and the corresponding bending point on the continuous portion 3661B should have a thickness in the stacking direction that is greater than the thickness of the flow path in the stacking direction and less than the thickness of the inlet in the stacking direction.

Further, the number of times of bending of the continuous portions 3661A and 3661B is not likely to be excessive, so that the transition region is not excessively long, and the area of the second flow path 3600B is reduced, and the heat exchange area of the defogging device 3601 is reduced.

[ fifth embodiment ] A

In the mist eliminator of the above embodiment, since the airflow has a characteristic of "short-cut", the airflow is liable to short-circuit directly upward at a position close to the first inlet, resulting in less airflow passing through the first flow path at a position far from the first inlet, and relatively reducing the heat exchange efficiency of the first airflow in the first flow path and the second airflow in the second flow path.

In order to solve the above-mentioned problem, as shown in fig. 10, in the present embodiment, the thickness of the first outlet 4640 gradually increases from one side edge to the other side edge in the width direction of the defogging device 4601, and the flow resistance gradually decreases.

Specifically, taking the first and second antifogging sheets a and B as an example of lamination, the top edge of the first antifogging sheet a is bent from the plane of the base material toward the second antifogging sheet B to form a first sealing portion FK1, the second antifogging sheet B is bent away from the lamination direction to form a second sealing portion FK2, and the first outflow port 4640 is formed between the first sealing portion FK1 and the second sealing portion FK 2. The first and second sealing parts FK1 and FK2 have a large bending amount near the first inlet 4610, and the first outlet 4640 is formed to have a small thickness and a large flow resistance; the first and second sealing portions FK1 and FK2 have a small amount of bending away from the first inlet 4610 and form the first outlet 4640 with a large thickness, so that the dry and cold air flowing in through the first inlet 4610 is more uniformly distributed in the first flow path, thereby further improving the heat exchange efficiency of the defogging device 4601. The first and second sealing parts FK1 and FK2 may have a substantially triangular or substantially trapezoidal cross-sectional shape.

[ sixth embodiment ]

In the mist eliminator of the first to fifth embodiments, since the airflow has a characteristic of "short-cut", the airflow is likely to go straight short-circuited at a position close to the first inlet, and thus the airflow in a position far from the first inlet in the first flow path and a lower region of the mist eliminator flows less, and the heat exchange efficiency of the first airflow in the first flow path and the second airflow in the second flow path is relatively reduced.

In order to solve the above-described problems, as shown in fig. 11 to 15, in the present embodiment, a flow guide structure for guiding the first air flow to substantially the full width of the mist eliminator 5601 is formed in the mist eliminator 5601.

As shown in fig. 11, a first flow guide structure extending from the first inlet 5610 to the bottom of the first flow path 5600A is formed in the first flow path 5600A, the first flow guide structure is composed of a plurality of first flow guide convex ridge portions, and a flow passage for an air flow is formed between two adjacent first flow guide convex ridge portions.

The following describes the composition of the first flow guide structure. As shown in fig. 12 and 13, when viewed from the front of the first antifogging sheet a, a plurality of first guide ribs 5632A protruding to one side in the stacking direction are formed on the surface of the first antifogging sheet a, first ends of the first guide ribs 5632A extend toward the bottom area of the first antifogging sheet a, and second ends extend obliquely upward and rightward; the first guide ribs 5632A are intermittently provided. Preferably, the first guide ribs 5632 are formed in a bar shape. A plurality of first guide ribs 5632B protruding toward the first antifogging sheet a are formed on the surface of the second antifogging sheet B when viewed from the front direction of the second antifogging sheet B, first ends of the first guide ribs 5632B extend toward the bottom area of the second antifogging sheet B, and second ends of the first guide ribs 5632B extend obliquely and upward to the right; the first guide ribs 5632B are intermittently provided. Preferably, the first guide ribs 5632B are formed in a bar shape. The first guide protruding ribs 5632A and the first guide protruding ribs 5632B are arranged in a one-to-one correspondence manner, and the rib tops of the first guide protruding ribs 5632A and the rib tops of the first guide protruding ribs 5632B are sealed and abutted. Preferably, the rib top of the first guide rib 5632A and the rib top of the first guide rib 5632B may be bonded to form a first guide protrusion. Thus, in the first flow path, the plurality of intermittent first guide ribs 5632A and 5632B can block the airflow from directly short-circuiting and ascending from the first inlet 5610, and channels the airflow to descend to the bottom region of the first flow path 5600A, thereby increasing the heat exchange efficiency in the lower region of the mist eliminator 5601, and avoiding the airflow from totally short-circuiting and ascending to channel the airflow into the first flow path 5600A.

In addition, as shown in fig. 11, a second flow guiding structure is formed in the first flow path, the second flow guiding structure includes a plurality of second flow guiding convex edge portions arranged in sequence, the second flow guiding convex edge portions divide the upper portion of the fog dispersal device into a plurality of independent flow guiding cavities, and the plurality of flow guiding cavities occupy substantially the full width of the fog dispersal device. The second flow guiding convex edge part is approximately V-shaped in section in the direction parallel to the plane of the fog dispersal device, and the opening of the V shape faces away from the first inflow opening 5610. The V-shaped inner angle β gradually increases from one side close to the first inlet 5610 to the other side, and the resistance gradually decreases. The V-shaped inner included angle beta of the second flow guide convex edge part close to the right side edge of the fog dispersal device 5601 is small, and the flow resistance is large; the included angle beta in the V shape of the second flow guide convex edge part far away from the right side edge of the fog dispersal device 5601 is large, and the flow resistance is small.

The second guide ridge will be described below. As shown in fig. 12 and 13, a plurality of second guide ribs 5633A protruding to one side are formed on the surface of the upper region of the first antifogging sheet a. A second guide protruding rib 5633B corresponding to the second guide protruding rib 5633A protruding to one side is formed on the surface of the upper region of the second antifogging sheet B. The second guide protruding ribs 5633A are in one-to-one correspondence with the second guide protruding ribs 5633B, and rib tops of the second guide protruding ribs 5633A and the second guide protruding ribs 5633B are sealed and abutted. Preferably, the rib tops of the second guide protruding ribs 5633A and the rib tops of the second guide protruding ribs 5633B may be bonded to form second guide protruding edge portions, so as to form a plurality of independent guide cavities.

Specifically, as shown in fig. 14, if the second guiding ribs 5633A protrude outward from the paper surface when viewed from the back of the first antifogging sheet a, the plurality of second guiding ribs 5633A include a first guiding section 5634A and a second guiding section 5635A, a first end of the first guiding section 5631 a is connected to a first end of the second guiding section 5635A, and a second end extends upward and rightward until reaching an upper end edge of the first antifogging sheet a; the second end of the second guide section 5635A extends downward and rightward. Similarly, if the second air-guide ribs 5633B protrude outward of the paper surface when viewed from the front of the second antifogging sheet B as shown in fig. 15, the plurality of second air-guide ribs 5633B include a first air-guide section 5631B and a second air-guide section 5635B, a first end of the first air-guide section 5631B is connected to a first end of the second air-guide section 5635B, and a second end thereof extends upward and leftward until reaching an upper end edge of the second antifogging sheet B; the second end of the second guide section 5635B extends downward and leftward. The first guide section 5634A in the second guide convex rib 5633A corresponds to the first guide section 5634B in the second guide convex rib 5633B, and rib tops of the first guide section 5631 a and the first guide section 5631B are in sealing and abutting contact; the second guide section 5635A of the second guide protruding rib 5633A corresponds to the second guide section 5635B of the second guide protruding rib 5633B, and rib tops of the second guide section 5635A and the second guide section 5635B are sealed and abutted. Preferably, rib tops of the first guide section 5634A and the first guide section 5634B may be bonded, and rib tops of the second guide section 5635A and the second guide section 5635B may be bonded to form a second guide convex edge portion, thereby forming a plurality of independent guide cavities.

The top end of the guide cavity formed between the second guide convex edges is provided with a guide groove 5636 for the first air flow to pass through, and the rib spacing of the guide groove 5636 gradually increases from one side close to the first flow inlet 5610 to the other side. The flow guide groove 5636 close to the right side edge of the fog dispersal device 5601 has smaller rib spacing and larger flow resistance; the distance between the ribs of the diversion trench 5636 far away from the right side edge of the fog dispersal device 5601 is larger, and the flow resistance is smaller, so that the airflow flowing out through the diversion trenches 5636 is more uniform, and the fog dispersal effect of the fog dispersal device 5601 is further improved.

In addition, a third guide structure extending from the first inlet 5610 into the first flow path is formed in the first flow path, a third guide rib 5637A protruding toward the second antifogging sheet B is formed on the surface of the first antifogging sheet a near the first inlet 5610, a third guide rib 5637B protruding toward the first antifogging sheet a is formed on the surface of the second antifogging sheet B, and the rib top of the third guide rib 5637A and the rib top of the third guide rib 5637B are in sealing contact with each other to form a third guide convex edge portion. Preferably, the top of the third guide rib 5637A and the top of the third guide rib 5637B may be bonded to form a third guide structure. The third flow guiding structure is formed at the upper right corner of the first flow path, one end of the third flow guiding structure extends to the first flow inlet 5610, and a flow passage 5670 for airflow is formed between the other end of the third flow guiding structure and the second flow guiding convex edge portion close to the first flow inlet 5610. Therefore, the third flow guide structure can prevent the first airflow from directly short-circuiting and ascending from the first inflow port 5610, on one hand, part of the airflow is guided to flow to the upper right corner of the first flow path through the flow passage 5670, so that the outflow of the airflow is delayed, the heat exchange efficiency at the corner of the fog dispersal device 5601 is enhanced, and on the other hand, the airflow is guided to descend to the bottom area of the first flow path by matching with the first flow guide structure, so that the heat exchange efficiency of the lower part area of the fog dispersal device 5601 is increased. Preferably, the third guide ribs 5637A and 5637B are formed in an arc shape to facilitate the guide of the air current. A plurality of shunting convex edge parts are arranged between the third flow guide structure and a second flow guide convex edge part close to the first inflow opening 5610, the shunting convex edge parts are formed in a way that the first fog dissipation piece A protrudes to one side of the stacking direction to form a plurality of shunting sections 5638A, the second fog dissipation piece B protrudes to one side of the stacking direction back to form a plurality of shunting sections 5638B, and the top ends of the shunting sections 5638A on the first fog dissipation piece A and the shunting sections 5638B on the second fog dissipation piece B are sealed and abutted. Preferably, the protruded side surface of the diffluent section 5638A and the protruded side surface of the diffluent section 5638B are bonded to form a plurality of diffluent convex edge portions, so that the airflow entering through the flow passage 5670 is guided to be uniformly distributed at the corners of the defogging device 5601, and the heat exchange efficiency is further improved.

In the mist eliminator of this embodiment, a fourth guide structure is provided at an edge of the first flow path 5600A remote from the first inlet port 5610, the fourth guide structure is formed such that a fourth guide rib 5639A protruding to one side is formed on a surface of a region of the first mist eliminating plate a remote from the first inlet port 5610, a fourth guide rib 5639B protruding to one side of the first mist eliminating plate a is formed on a surface of the second mist eliminating plate B, and a rib top of the fourth guide rib 5639A and a rib top of the fourth guide rib 5639B are sealingly abutted to constitute a fourth guide protrusion edge portion. Preferably, the rib top of the fourth guide rib 5639A and the rib top of the fourth guide rib 5639B may be bonded to form a fourth guide structure. Preferably, the fourth guide ribs 5639A and 5639B are formed in an arc shape to facilitate air flow channeling.

Therefore, the first airflow flows in through the first inflow opening 5610, flows downwards under the obstruction of the third flow guide structure and the dredging of the first flow guide structure, and part of the airflow is dredged to the corner area through the flow passage 5670 to exchange heat; the second flow guiding convex edge part in the second flow guiding structure obstructs the airflow to generate turbulent flow, so that the airflow is uniformly discharged from the outflow port through a curved path, and uniform heat exchange of the airflow in the fog dispersal device 5601 is facilitated.

[ seventh embodiment ]

As shown in fig. 16, the present embodiment is a further modification of the cooling tower of the first embodiment.

In this embodiment, the spray heads 6211 in the spraying portion 6200 are all opened, so that the heat exchange portion can have a high heat exchange area while saving water and dispersing mist.

In this embodiment, as shown in fig. 16, the two sets of mist eliminators 6601, 6602 are closely spliced, and correspondingly, the cold air introduction portion 6700 includes two sets which are respectively disposed at the other sides of the two sets of mist eliminators 6601, 6602, and the mist eliminators 6601, 6602 are closely connected without a blank, and have a large heat exchange area and a high space utilization rate. The cold air inlet 6700 is provided with a first valve 6701, and the first valve 6701 may be a louver, and the operation mode of the cooling tower 6000 can be adjusted by adjusting the opening and closing of the louver.

In winter, the cooling tower 6000 opens the water-saving fog-eliminating mode, namely the first valve 6701 is opened, dry cold air outside the tower flows into the first flow path of the fog-eliminating device 6601, 6602 through the cold air inlet 6700, the sprayed hot and humid air enters the second flow path from the bottom of the fog-eliminating device 6601, 6602, the dry cold air in the first flow path and the hot and humid air in the second flow path are separated by the fog-eliminating sheet and exchange heat through the partition wall of the fog-eliminating sheet, so that the hot and humid air in the second flow path is contacted with the cold surface of the first flow path, condensed water drops are formed on the surface of the second flow path, and water saving is realized; the dry cold air enters the fog dispersal devices 6601 and 6602, absorbs heat and heats to become dry warm air, the hot and humid air enters the fog dispersal devices 6601 and 6602, releases heat and cools to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dispersal devices 6601 and 6602 to be mixed to realize fog dispersal.

In summer, the cooling tower is opened in a maximum heat dissipation mode, and the first valve 6701 is closed without fog dissipation; in the maximum heat dissipation mode, the second flow paths of the fog dispersal devices 6601 and 6602 are used for circulating hot and humid air, and more air flows are pumped under the same energy consumption of the induced draft fan 6022, so that the cooling efficiency of the tower is improved.

[ eighth embodiment ]

The present embodiment is a further improvement of the cooling tower 6000 in the seventh embodiment, and increases the circulation of hot and humid air when the cooling tower 6000 does not need to be defogged, and reduces the flow resistance.

In the present embodiment, as shown in fig. 17, a second valve 6702 is provided between the two sets of mist eliminators 6601, 6602, and this second valve 6702 may be a louver, and is attached to a substantially central position of the cooling tower 6000, and the operation mode of the cooling tower 6000 can be adjusted by adjusting the opening and closing of the louver.

In winter, the cooling tower 6000 starts a water-saving fog-dispersing mode, namely the second valve 6702 is closed, and the first valve 6701 is opened; dry cold air outside the tower flows into the first flow paths of the fog dissipation devices 6601 and 6602 through the cold air inlet 6700, the sprayed hot and humid air flows into the second flow paths from the bottoms of the fog dissipation devices 6601 and 6602 to the maximum extent, the dry cold air in the first flow paths and the hot and humid air in the second flow paths are separated by the fog dissipation sheets and exchange heat through partition walls of the fog dissipation sheets, so that the hot and humid air in the second flow paths are in contact with the cold surfaces of the first flow paths, condensed water drops are formed on the surfaces of the second flow paths, and water saving is realized; the dry cold air enters the fog dispersal devices 6601 and 6602, absorbs heat and heats to become dry warm air, the hot and humid air enters the fog dispersal devices 6601 and 6602, releases heat and cools to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dispersal devices 6601 and 6602 to be mixed to realize fog dispersal.

In summer, the cooling tower 6000 starts the maximum heat dissipation mode, namely the second valve 6702 is opened, and the first valve 6701 is closed; in the maximum heat dissipation mode, the hot and humid air roadway C and the second flow path of the fog dispersal device 6601 are both used for circulating hot and humid air, thereby reducing the hot and humid air circulation resistance of the fog dispersal portion and improving the cooling efficiency of the tower.

[ ninth embodiment ] A

This embodiment is a further improvement of the cooling tower 1000 in the first embodiment, and increases the circulation of hot and humid air when the cooling tower 1000 does not need to be defogged, and reduces the flow resistance.

In the present embodiment, as shown in fig. 18, the cold air introducing section 7700 includes two sets provided on the left and right sides of the two sets of mist eliminators 7601 and 7602, and the cold air introducing section 7700 includes a third valve 7703, and the operation mode of the cooling tower 7000 can be adjusted by adjusting the open/close state of the third valve 7703.

Specifically, the third valve 7703 may be provided at an inflow port of the dry and cool air of the cooling tower 7000, for example, attached to a side wall of the air chamber of the cooling tower 7000, and the cool air introducing portion 7700 may be connected to or disconnected from the outside air by the third valve 7703. Wherein, the air chamber of the cooling tower 7000 comprises the space in the tower from above the water collector to below the exhaust part.

In winter, the cooling tower 7000 starts a water-saving fog-eliminating mode, namely the third valve 7703 is opened, dry cold air outside the tower flows into the first flow path of the fog-eliminating device 7601, 7602 through the dry cold air tunnel D, the dry cold air in the first flow path and the hot humid air in the second flow path are separated by the fog-eliminating sheet and exchange heat through the fog-eliminating sheet, so that the hot humid air in the second flow path is in contact with the cold surface of the first flow path, condensed water drops are formed on the surface of the second flow path, and water saving is realized; the dry cold air enters the fog dissipation devices 7601 and 7602, the dry cold air absorbs heat and heats up to become dry warm air, the hot and humid air enters the fog dissipation devices 7601 and 7602, the heat is released and the temperature is reduced to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 7601 and 7602 to be mixed to achieve fog dissipation.

As shown in fig. 19, in summer, the cooling tower 7000 is opened in the maximum heat radiation mode, that is, the third valve 7703 is closed, and in the maximum heat radiation mode, the second flow path and the hot and humid air passage E of the mist eliminator 7601, 7602 are both used to circulate hot and humid air, thereby reducing the hot and humid air circulation resistance of the mist eliminator and improving the cooling efficiency of the tower.

The third valve 7703 includes a first valve plate 7703A and a second valve plate 7703B, a fixed end of the first valve plate 7703A is pivotally connected to one side wall of the cool air introducing portion 7700, and a fixed end of the second valve plate 7703B is pivotally connected to the other side wall of the cool air introducing portion 7700. When the third valve 7703 is opened, the free ends of the first valve plate 7703A and the second valve plate 7703B are connected to the fog dispersal device 7601, a dry air tunnel D is formed between the first valve plate 7703A and the second valve plate 7703B, and the hot and humid air tunnel E is closed to block the upward flow of hot and humid air at the first and second valve plates 7703A, 7703B. When the third valve 7703 is closed, the wet heat lane E between the first valve plate 7703A and the second valve plate 7703B is communicated, and the wet heat can flow upward.

The width of the first valve plate 7703A is the same as the width of the second valve plate 7703B, and the widths are the same as or different from the height of the cold air inlet 7700. When the width of the first and second valve plates 7703A, 7703B is the same as the height of the cold air introduction portion 7700 and the first valve plate 7703A blocks the cold air introduction portion 7700 in the initial state, the first valve plate 7703A is turned upward, and the second valve plate 7703B is turned upward to open the third valve 7703; then the first valve plate 7703A is turned downwards, and the second valve plate 7703B is turned downwards, so that the third valve plate 7703 can be closed; when the cold air introduction portion 7700 is initially blocked by the second valve plate 7703B, the third valve 7703 is opened by turning the second valve plate 7703B downward, the first valve plate 7703A is turned downward, and the third valve 7703 is closed by turning the second valve plate 7703B upward, and the third valve 7703 is closed by turning the first valve plate 7703A upward. When the widths of the first and second valve plates 7703A, 7703B are different from the height of the cold air introduction portion 7700, the widths of the first and second valve plates 7703A, 7703B each occupy half of the height of the cold air introduction portion 7700, and the third valve 7703 can be closed by turning the first and second valve plates 7703A, 7703B toward each other; the third valve 7703 can be opened by turning the first and second valve plates 7703A and 7703B back to the front.

[ tenth embodiment ]

This embodiment is a further improvement of the cooling tower 1000 in the first embodiment, and increases the circulation of hot and humid air when the cooling tower 1000 does not need to be defogged, and reduces the flow resistance.

In the present embodiment, as shown in fig. 20, the cold air introduction part 8700 includes two sets, which are provided on the left and right sides of the two sets of mist eliminators 8601 and 8602.

An extension portion 8704 is provided on the side wall of the cooling tower 8000 at the cold air introducing portion 8700, and the extension portion 8704 is hollow and substantially rectangular; a module moving space F is formed inside the extension portion 8704, and the module moving space F extends to the longitudinal direction of the entire mist eliminator 8601, 8602. The extension 8704 is provided with a fourth valve 8705 on a side facing away from the space in the cooling tower 8000, and the operation mode of the cooling tower 8000 can be adjusted by adjusting the open/close state of the fourth valve 8705. The bottom of the mist eliminator 8601, 8602 is provided with a slide mechanism, so that the entire mist eliminator 8601, 8602 can reciprocate in the right-left direction of the cooling tower 8000. The sliding device can be any other device matched with a roller sliding rail or a sliding block sliding rail.

In winter, the cooling tower 8000 starts a water-saving fog-eliminating mode, namely, the fourth valve 8705 is opened, dry cold air outside the tower flows into the first flow paths of the fog-eliminating devices 8601 and 8602 through the module moving space F, the dry cold air in the first flow path and the hot humid air in the second flow path are separated by the fog-eliminating sheet and exchange heat through the fog-eliminating sheet, so that the hot humid air in the second flow path is contacted with the cold surface of the first flow path, condensed water drops are formed on the surface of the second flow path, and water saving is realized; the dry cold air enters the fog dissipation devices 8601 and 8602, absorbs heat and heats to become dry warm air, the hot and humid air enters the fog dissipation devices 8601 and 8602, releases heat and cools to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 8601 and 8602 to be mixed to achieve fog dissipation.

In summer, the cooling tower 8000 opens the maximum heat radiation mode, and pulls out the fog dispersal device 8601 to the right side to a distance in the module moving space F, and/or pulls out the fog dispersal device 8602 to the left side to a distance in the module moving space F, so that the channel of the hot and humid air circulation between the middle part of the cooling tower 8000, namely the two sets of fog dispersal devices 8601 and 8602 can be enlarged, and the flow resistance is reduced. After drawing the module removal space F of both sides respectively with fog dispersal device 8601, 8602, can close fourth valve 8705, cut off the outside air inflow, under the equal energy consumption of draught fan, the more airflow of suction has improved the cooling efficiency of tower.

Specifically, the fourth valve 8705 may be a louver, and the operation mode of the cooling tower may be adjusted by opening and closing the louver.

[ eleventh embodiment ]

In the ninth embodiment, the two sets of mist eliminators 7601 and 7602 are connected in the middle, and only the third valves 7703 on both sides and the second flow path of the mist eliminators 7601 allow hot and humid air to flow therethrough. However, since the air flow has a "short-cut" characteristic, fig. 18 shows a schematic distribution of the air flow field in the cooling tower, where the air flow velocity is high in the area inside the dotted line, the air volume is large, the area inside the dotted line is the high-efficiency flow path G, and the area outside the dotted line is the low-efficiency flow path. In fig. 19, when the third valve 7703 is closed, the flow of wet hot gas is less in the low efficiency flow path, which relatively reduces the cooling efficiency of the cooling tower.

In the present embodiment, as shown in fig. 21, an extension portion 7704 is provided on the side wall of the cooling tower at the cold air introduction portion 7700, and the extension portion 7704 is hollow and has a substantially rectangular frame; the extension 7704 is formed therein with a module moving space F extending in a longitudinal direction of the entire mist eliminator 7601, 7602. The bottom of the mist eliminator 7601, 7602 is provided with a sliding device, so that the entire mist eliminator 7601, 7602 can reciprocate in the left-right direction of the cooling tower. The sliding device can be any other device matched with a roller sliding rail or a sliding block sliding rail. In addition, a fourth valve 7705 is disposed on a side of the extension 7704 opposite to the space in the cooling tower, and the fourth valve 7705 may be a louver, and the operation mode of the cooling tower is adjusted by adjusting the opening and closing of the louver.

In winter, the cooling tower starts a water-saving fog-dissipation mode, namely a third valve 7703 and a fourth valve 7705 are opened, dry cold air outside the tower flows into a first flow path of a fog- dissipation device 7601 and 7602 through a module moving space F and a dry cold air roadway D, the dry cold air in the first flow path and hot air in a second flow path are separated by a fog-dissipation sheet and exchange heat through the fog-dissipation sheet, so that the hot air in the second flow path is in contact with a cold surface of the first flow path, condensed water drops are formed on the surface of the second flow path, and water saving is realized; the dry cold air enters the fog dissipation devices 7601 and 7602, the dry cold air absorbs heat and heats up to become dry warm air, the hot and humid air enters the fog dissipation devices 7601 and 7602, the heat is released and the temperature is reduced to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 7601 and 7602 to be mixed to achieve fog dissipation.

In summer, the cooling tower is opened in a maximum heat dissipation mode, the fog dissipation device 7601 is pulled out to the right side through the dry cold air tunnel D to a certain distance in the module moving space F, and/or the fog dissipation device 7602 is pulled out to the left side to a certain distance in the module moving space F, so that a channel for hot and humid air circulation in the middle of the cooling tower can be enlarged, and flow resistance is reduced. Meanwhile, the first valve plate 7703A can be turned upwards, and the second valve plate 7703B can be turned downwards to open the hot and humid air tunnel E, so that hot and humid air can be circulated without preventing the fog dissipation devices 7601 and 7602 from sliding out and blocking the second flow paths of the fog dissipation devices 7601 and 7602 in the hot and humid air tunnel E, the hot and humid air circulation channel is further enlarged, and the cooling efficiency of the tower is improved. After the fog dispersal devices 7601 and 7602 are respectively pulled to the module moving spaces F on the two sides, the fourth valve 7705 can be closed, the inflow of outside air is cut off, more air flow is sucked under the same energy consumption of the induced draft fan, and the cooling efficiency of the tower is improved.

[ twelfth embodiment ]

In the ninth embodiment, the two mist eliminator 7601, 7602 are connected in the middle, and only the third valves 7703 on both sides and the second flow path of the mist eliminator 7601, 7602 allow hot and humid air to flow therethrough. However, since the air flow has a "short-cut" characteristic, fig. 22 shows a schematic distribution of the air flow field in the cooling tower, where the air flow velocity is high in the area inside the dotted line, the air volume is large, the area inside the dotted line is the high-efficiency flow path G, and the area outside the dotted line is the low-efficiency flow path. When the third valve 7703 is closed, the flow of wet hot gas is less in the low efficiency flow path, which relatively reduces the cooling efficiency of the cooling tower.

In order to solve the above-described problems, in the present embodiment, as shown in fig. 22, a second valve 7702 is provided between two sets of mist eliminators 7601, 7602, and this second valve 7702 may be a louver, and is attached to a substantially central position of the cooling tower, and the operation mode of the cooling tower can be adjusted by adjusting the open/close state of the louver. The addition of the second valve 7702 requires an adaptive adjustment of the width of the defogging devices 7601, 7602 to achieve this.

In winter, the cooling tower starts a water-saving fog-dispersing mode, namely the second valve 7702 is closed, and the third valve 7703 is opened; dry cold air outside the tower flows into a first flow path of the fog dissipation device 7601 through the cold air introduction part 7700, the sprayed hot and humid air flows into a second flow path from the bottoms of the fog dissipation devices 7601 and 7602 to the maximum extent, the dry cold air in the first flow path and the hot and humid air in the second flow path are separated by a fog dissipation sheet and exchange heat through the fog dissipation sheet, so that the hot and humid air in the second flow path is in contact with the cold surface of the first flow path, condensed water drops are formed on the surface of the second flow path, and water saving is realized; the dry cold air enters the fog dissipation devices 7601 and 7602, the dry cold air absorbs heat and heats up to become dry warm air, the hot and humid air enters the fog dissipation devices 7601 and 7602, the heat is released and the temperature is reduced to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 7601 and 7602 to be mixed to achieve fog dissipation.

In summer, the cooling tower starts the maximum heat dissipation mode, namely the second valve 7702 is opened, and the third valve 7703 is closed; in the maximum heat dissipation mode, the hot and humid air roadway C, the hot and humid air roadway E and the second flow paths of the fog dissipation devices 7601 and 7602 are all used for circulating hot and humid air, hot and humid air circulation on the efficient circulation path G and the low-efficient circulation path is improved, hot and humid air circulation resistance of the fog dissipation part is reduced, and cooling efficiency of the tower is improved.

[ thirteenth embodiment ] A

The cooling tower in the tenth embodiment is further improved by the embodiment, the circulation of hot and humid air in the middle position of the cooling tower is further increased when the cooling tower does not need to be defogged, and the flow resistance is reduced.

In the present embodiment, as shown in fig. 23, a second valve 8702 is provided between two sets of mist eliminators 8601 and 8602, and the second valve 8702 may be a louver, and is attached to a substantially central position of the cooling tower, and the operation mode of the cooling tower can be adjusted by adjusting the opening and closing of the louver.

In winter, the cooling tower starts a water-saving fog-dispersing mode, namely the second valve 8702 is closed, and the fourth valve 8705 is opened; dry cold air outside the tower flows into first flow paths of the fog dissipation devices 8601 and 8602 from the module moving space F, the sprayed hot and humid air flows into second flow paths from the bottoms of the fog dissipation devices 8601 and 8602 to the maximum extent, the dry cold air in the first flow paths and the hot and humid air in the second flow paths are separated by fog dissipation sheets and exchange heat through the fog dissipation sheets, so that the hot and humid air in the second flow paths are in contact with the cold surface of the first flow paths, condensed water drops are formed on the surfaces of the second flow paths, and water saving is realized; the dry cold air enters the fog dissipation devices 8601 and 8602, absorbs heat and heats to become dry warm air, the hot and humid air enters the fog dissipation devices 8601 and 8602, releases heat and cools to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 8601 and 8602 to be mixed to achieve fog dissipation.

In summer, the cooling tower starts a maximum heat dissipation mode, namely the second valve 8702 is opened, the fog dispersal device 8601 is pulled out to the right side in the module moving space F for a distance, and/or the fog dispersal device 8602 is pulled out to the left side in the module moving space F for a distance, so that the hot and humid air roadway C in the middle part of the cooling tower can be enlarged, and the flow resistance is reduced; in the maximum heat dissipation mode, the hot and humid air roadway C, the second flow paths of the fog dispersal devices 8601 and 8602 and the expanded channel are all used for circulating hot and humid air, so that the hot and humid air circulation resistance of the fog dispersal portion is reduced, and the cooling efficiency of the tower is improved. In addition, the fourth valve 8705 may be closed after the fog dispersal devices 8601 and 8602 are respectively pulled to the module moving spaces F at both sides, the inflow of the external air into the first flow path is cut off, more air flow is sucked under the same energy consumption of the induced draft fan, and the cooling efficiency of the tower is improved.

[ fourteenth embodiment ]

In the twelfth embodiment, the third valve 7703 is provided so as to occupy the entire path of the high-efficiency flow path G, and when the cooling tower is in the heat radiation mode in summer, the hot and humid air flowing through the high-efficiency flow path G is reduced, which is relatively disadvantageous for cooling the cooling tower.

In order to solve the above-mentioned problem, in the present embodiment, as shown in fig. 24, an extension portion 7704 is provided on a side wall of the cooling tower at a position of the cold air introducing portion 7700, and the extension portion 7704 is hollow and substantially rectangular; the extension 7704 is formed therein with a module moving space F extending to the length direction of the entire defogging devices 7601 and 7602. The bottom of the mist eliminator 7601, 7602 is provided with a sliding device, so that the entire mist eliminator 7601, 7602 can reciprocate in the left-right direction of the cooling tower. The sliding device can be any other device matched with a roller sliding rail or a sliding block sliding rail. In addition, a fourth valve 7705 is disposed on a side of the extension 7704 opposite to the space in the cooling tower, and the fourth valve 7705 may be a louver, and the operation mode of the cooling tower is adjusted by adjusting the opening and closing of the louver.

In winter, the cooling tower starts a water-saving fog dispersal mode, namely the second valve 7702 is closed, the third valve 7703 and the fourth valve 7705 are opened, dry cold air outside the tower flows into the first flow paths of the fog dispersal devices 7601 and 7602 through the module moving space F and the dry cold air roadway D, the dry cold air in the first flow paths and hot air in the second flow paths are separated by the fog dispersal sheets and exchange heat through the fog dispersal sheets, so that the hot air in the second flow paths is in contact with the cold surface of the first flow paths, condensed water drops are formed on the surfaces of the second flow paths, and water saving is realized; the dry cold air enters the fog dissipation devices 7601 and 7602, the dry cold air absorbs heat and heats up to become dry warm air, the hot and humid air enters the fog dissipation devices 7601 and 7602, the heat is released and the temperature is reduced to become wet warm air, and the dry warm air and the wet warm air flow out of the fog dissipation devices 7601 and 7602 to be mixed to achieve fog dissipation.

In summer, as shown in fig. 25, the cooling tower is in the maximum heat dissipation mode, the fog dispersal device 7701 is pulled out to the right side through the dry cold air tunnel D to a certain distance into the module moving space F, and/or the fog dispersal device 7702 is pulled out to the left side to a certain distance into the module moving space F, so that a passage for hot and humid air flowing in the middle part of the cooling tower can be enlarged, and the flow resistance is reduced. Meanwhile, the first valve plate 7703A can be turned upwards, and the second valve plate 7703B can be turned downwards to open the hot and humid air tunnel E, so that hot and humid air can be circulated without preventing the fog dissipation devices 7601 and 7602 from sliding out and blocking the second flow paths of the fog dissipation devices 7601 and 7602 in the hot and humid air tunnel E, the hot and humid air circulation channel is further enlarged, and the cooling efficiency of the tower is improved.

After the fog dispersal devices 7601 and 7602 are respectively pulled to the module moving spaces F on the two sides, the fourth valve 7705 can be closed, the inflow of outside air is cut off, more air flow is sucked under the same energy consumption of the induced draft fan, and the cooling efficiency of the tower is improved.

Claims (41)

1. A fog dispersal device, comprising:

a first flow path and a second flow path which are stacked and exchange heat between the first air flow and the second air flow;

a first inflow port that introduces a first airflow that flows in from one side in the width direction of the defogging device into the first flow path;

a second inlet for introducing a second air flow from the bottom of the mist eliminator into the second flow path;

discharging the first airflow flowing out of the first flow path to a first outflow port above the defogging device;

discharging a second airflow flowing out of the second flow path to a second outflow port above the defogging device.

2. Mist dissipating apparatus according to claim 1,

the first outlet ports and the second outlet ports are alternately stacked.

3. Mist dissipating apparatus according to claim 1,

the width of the first outflow opening is substantially the same as the width of the mist eliminator, and the width of the second outflow opening is substantially the same as the width of the mist eliminator.

4. Mist dissipating apparatus according to claim 1,

the fog dispersal device comprises a first fog dispersal sheet and a second fog dispersal sheet which limit the first flow path and the second flow path, wherein the first fog dispersal sheet and the second fog dispersal sheet are alternately stacked.

5. Mist dissipating apparatus according to claim 1,

the thickness of the first outflow opening is gradually increased from one side edge of the width direction of the fog dispersal device to the other side.

6. Mist dissipating apparatus according to claim 1,

the height of the first inlet is substantially the same as the height of the mist eliminator, and the width of the second inlet is substantially the same as the width of the mist eliminator.

7. Mist dissipating apparatus according to claim 4,

the thickness of the first inflow port is equal to or greater than the thickness of the second inflow port.

8. Mist dissipating apparatus according to claim 1,

a plurality of downstream connecting parts are formed on the fog dispersal device in the second flow path; the plurality of downstream connections divide the second flowpath into a plurality of downstream channels that occupy substantially the full width of the mist eliminator.

9. Mist dissipating apparatus according to claim 7,

an introduction portion communicating with the first flow path is formed on one side in the width direction of the mist eliminator.

10. Mist dissipating apparatus according to claim 9,

the thickness of the inlet of the introduction part is larger than that of the outlet of the introduction part.

11. Mist dissipating apparatus according to claim 9,

a transition portion is formed between the introduction portion and the first flow path.

12. Mist dissipating apparatus according to claim 11,

the thickness of the transition part is gradually reduced from the inflow port to the outflow port of the transition part.

13. Mist dissipating apparatus according to claim 11,

the thickness of the inlet of the transition part is larger than that of the inlet of the first flow path, and the thickness of the outlet of the transition part is smaller than that of the outlet of the introduction part.

14. Mist dissipating apparatus according to claim 11,

the first and second defogging sheets have a continuous portion folded in a direction opposite to each other from the outlet of the inlet portion.

15. Mist dissipating apparatus according to claim 14,

and at least one bending point is formed on the continuous part, and in the transition part, the thickness between the bending point on the first fog dispersal sheet and the corresponding bending point on the second fog dispersal sheet is smaller than the thickness of the inflow port of the transition part and is larger than the thickness of the outflow port of the transition part.

16. Mist dissipating apparatus according to claim 15,

the bending point on the transition part is used for dividing the continuous part into at least two parts, and the part close to the inflow port of the transition part forms an included angle alpha with the vertical plane₁Is larger than the included angle alpha between the part close to the flow outlet of the transition part and the vertical plane₂。

17. Mist dissipating apparatus according to claim 4,

the fog dispersal device is provided with a flow guide structure which guides a first airflow flowing in from one side of the width of the fog dispersal device to the range of the approximate full width of the fog dispersal device.

18. The defogging device according to claim 17,

the flow guide structure comprises a plurality of first flow guide convex edge parts formed in the first flow path, and the first flow guide convex edge parts are arranged intermittently and extend from the first flow inlet to the lower area of the first flow path.

19. The defogging device according to claim 17,

the flow guide structure comprises a plurality of second flow guide convex edge parts formed in the first flow path, and the second flow guide convex edge parts divide the upper part of the fog dispersal device into a plurality of independent flow guide cavities.

20. The mist dissipating apparatus of claim 19,

the second flow guide convex edge part is formed into a V shape in the section parallel to the plane direction of the fog dispersal device, and the opening of the V shape is back to the first inflow opening.

21. The mist dissipating apparatus of claim 20,

the internal angle β of the V-shape gradually increases from one side near the first inlet to the other.

22. The mist dissipating apparatus of claim 19,

the top end of the flow guide cavity is provided with a flow guide groove for the first air flow to pass through, and the rib spacing of the flow guide grooves is gradually increased from one side close to the first inflow opening to the other side.

23. The mist dissipating apparatus of claim 19,

the flow guide structure comprises a third flow guide convex edge part formed in the first flow path, and a flow passage of airflow is formed between the third flow guide convex edge part and a second flow guide convex edge part close to one side of the first flow inlet.

24. The mist dissipating apparatus of claim 23,

and a plurality of flow distribution convex edge parts are arranged in the first flow path and above the third flow guide convex edge part.

25. The defogging device according to claim 17,

the flow guide structure comprises a fourth flow guide convex edge part formed in the first flow path, and the fourth flow guide convex edge part is positioned on one side, far away from the first inflow opening, in the first flow path.

26. A cooling tower comprising the mist elimination device of any one of claims 1-25.

27. A cooling tower, comprising:

a body including an air inlet formed at a lower portion thereof and allowing external air to flow in, and an air discharge portion formed at an upper portion thereof and discharging an air current;

a heat exchange portion between the air inlet and the exhaust portion;

the spraying part is positioned above the heat exchange part and is used for spraying a medium to the heat exchange part;

the fog dissipation part is positioned above the spraying part; the fog dispersal part comprises a fog dispersal device; the fog dispersal device comprises: a first flow path and a second flow path which are stacked and exchange heat between the first air flow and the second air flow; a first inflow port that introduces a first airflow that flows in from one side in the width direction of the defogging device into the first flow path; a second inlet for introducing a second air flow from the bottom of the mist eliminator into the second flow path; discharging the first airflow flowing out of the first flow path to a first outflow port above the defogging device; discharging a second airflow flowing out of the second flow path to a second outflow port above the defogging device; and

a cold air introduction part formed at a side of the fog dispersal part; the cold air inlet part is communicated with a first flow passage in the fog dispersal device; the cold air introducing part extends in the horizontal direction and penetrates through at least one side wall of the cooling tower air chamber to be communicated with the outside air;

wherein the first air flow flows into the first flow path from the cold air introduction part; the second air flow flows through the heat exchange part and the spraying part in sequence from the air inlet and then flows into the second flow path.

28. The cooling tower of claim 27,

the cold air leading-in portion includes first valve, the cold air leading-in portion passes through first valve and outside air intercommunication.

29. The cooling tower of claim 27,

the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

30. The cooling tower of claim 27,

the cold air inlet part comprises a third valve, and is communicated with external air through the third valve; the air mixing unit is communicated with the space in the tower below the third valve through the third valve.

31. The cooling tower of claim 30,

the third valve comprises a first valve plate and a second valve plate, and the first valve plate and the second valve plate are pivoted on the cold air introducing part;

wherein, the width of the first valve plate and the second valve plate is the same as or different from the height of the cold air inlet part.

32. The cooling tower of claim 31,

and when the widths of the first valve plate and the second valve plate are the same as the height of the cold air introducing part, the first valve plate and the second valve plate are turned in the same direction, so that the third valve is opened or closed.

33. The cooling tower of claim 31,

when the widths of the first valve plate and the second valve plate are different from the height of the cold air inlet part, the widths of the first valve plate and the second valve plate respectively occupy half of the height of the cold air inlet part; the first valve plate and the second valve plate are turned back or opposite to each other, so that the third valve is opened or closed.

34. The cooling tower of claim 27,

the cold air leading-in part is provided with an extension part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

35. The cooling tower of claim 34,

and a fourth valve is arranged on one side of the extension part, which faces away from the cooling tower, and the cold air inlet part is communicated with the outside air through the fourth valve.

36. The cooling tower of any one of claims 30-33,

the cold air leading-in part is provided with an extension part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

37. The cooling tower of claim 36,

and a fourth valve is arranged on one side of the extension part, which faces away from the cooling tower, and the cold air inlet part is communicated with the outside air through the fourth valve.

38. The cooling tower of any one of claims 30-33,

the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

39. The cooling tower of claim 34 or 35,

the fog dispersal devices comprise two groups, and the two groups of fog dispersal devices are arranged in the horizontal direction to form a fog dispersal part of the cooling tower; and a second valve is arranged between the two groups of fog dispersal devices, and the air mixing part is communicated with the space in the tower at the lower side of the second valve through the second valve.

40. The cooling tower of claim 38,

the cold air leading-in part is provided with an extension part, a module moving space is formed inside the extension part, and at least part of the fog dispersal device can slide into the module moving space.

41. The cooling tower of claim 39,

and a fourth valve is arranged on one side of the extension part, which faces away from the cooling tower, and the cold air inlet part is communicated with the outside air through the fourth valve.

Images