CN117704851A - Air cooling tower and cooling system - Google Patents

Abstract

The present disclosure provides an air cooling tower and cooling system, the air cooling tower includes: the main tower comprises a main tower body; the main air inlet is positioned between the first heat exchange unit and the first water collecting unit; the auxiliary tower comprises an auxiliary tower body; the second heat exchange unit is arranged in the main tower body; the second water collecting unit is communicated with the first water collecting unit; the auxiliary tower air outlet is arranged on the side wall of the auxiliary tower body and is communicated with the main air inlet, and the auxiliary tower air outlet and the second heat exchange unit are positioned at the same horizontal height. The air cooling tower provided by the disclosure enables air to enter the auxiliary tower firstly, water of the second water collecting unit in the auxiliary tower is uniformly dispersed to the second heat exchange unit for heat exchange, the temperature of air entering the main tower from the air outlet of the auxiliary tower is reduced, and cold air entering the main tower exchanges heat with cooling water in the first heat exchange unit. The final purpose is achieved: the cooling water temperature is reduced to be lower, and the temperature of the cooling water can be reduced to be lower than the wet bulb temperature in principle.

Description

Air cooling tower and cooling system

Technical Field

The disclosure relates to the technical field of cooling towers, in particular to an air cooling tower and a cooling system.

Background

At present, the fields such as coal chemical industry, metallurgical industry, air conditioning system and the like are widely used for cooling towers, the cooling effect of a circulating cooling system is related to parameters of air media entering the cooling towers, and the cooling tower operation theory is based on evaporative heat dissipation of water and heat exchange when water contacts with air, so that the circulating cooling water is cooled.

The development of the air cooling technology has been over 50 years, the manager capacity is from small to large, the technology is from immature to mature, the application area is from hot south to cold north, and the development prospect is wider and wider because the technology is not emphasized to advocated process. In the present year, the air cooling technology at home and abroad is rapidly developed, and the achievement is remarkable. The dry air cooler generally consists of a tube bundle, a tube box, a fan, a shutter, a framework and the like. The cooling medium is ambient air, so that fluid in the tube bundle is cooled or condensed, and the purpose of cooling is achieved. The device has obvious advantages in the aspects of energy conservation, water conservation and stable operation. Meanwhile, the structure is simple, the manufacturing technology is mature, and the use and maintenance are convenient, so that the method has wide application in the petrochemical industry field.

The dry air cooler is designed by taking local climate, ambient temperature and other parameters into consideration, and the air cooler meeting the current process requirements is reasonably selected. However, the air cooler has the situation that the heat exchange efficiency is reduced due to the fact that the overall ambient temperature is increased year by year and the problems of internal and external scaling and the like occur along with long-time use of equipment.

Disclosure of Invention

An object of the present disclosure is to provide an air cooling tower and a cooling system, which can solve at least one technical problem mentioned above. The specific scheme is as follows:

according to a specific embodiment of the present disclosure, in one aspect, the present disclosure provides an air cooling tower, including: a main tower comprising a main tower body; the first heat exchange unit is arranged in the main tower body; the first water collecting unit is arranged at the bottom of the main tower body; the main air inlet is arranged on the side wall of the main tower body and is positioned between the first heat exchange unit and the first water collecting unit; the auxiliary tower comprises an auxiliary tower body; the second heat exchange unit is arranged in the main tower body; the second water collecting unit is arranged at the bottom of the auxiliary tower body and is communicated with the first water collecting unit; the auxiliary tower air outlet is formed in the side wall of the auxiliary tower body and communicated with the main air inlet, and the auxiliary tower air outlet and the second heat exchange unit are located at the same horizontal height.

In an alternative embodiment, the plurality of auxiliary towers are provided, and the second water supply units of the plurality of auxiliary towers are communicated with the first water collecting unit.

The auxiliary tower is annular and surrounds the main tower body.

In an alternative embodiment, the number of the main air inlets is plural, and the plural main air inlets are in one-to-one correspondence with the plural auxiliary tower air outlets of the auxiliary tower.

In an alternative embodiment, the main tower body and the auxiliary tower body have a common first side wall, and the first side wall is provided with a hole, and the hole is used as a main air inlet of the main tower and an auxiliary air outlet of the auxiliary tower at the same time.

In an alternative embodiment, the main tower further comprises: the first fan is arranged at the top of the main tower.

In an alternative embodiment, the first heat exchange unit includes: the plate heat exchanger and the horizontal direction of the main tower body have a first included angle.

In an alternative embodiment, the first included angle is 30-60 °.

In an alternative embodiment, a plurality of the plate heat exchangers are arranged in a horizontal direction of the main tower body.

In an alternative embodiment, the secondary tower further comprises: the second fan is arranged at the top of the auxiliary tower.

In an alternative embodiment, the secondary tower further comprises: the liquid distribution unit is arranged in the auxiliary tower body and is positioned between the second fan and the second heat exchange unit, and the liquid distribution unit is communicated with the second water collection unit.

In an alternative embodiment, the secondary tower further comprises: the primary air inlet is arranged on the side wall of one end of the auxiliary tower body, which is far away from the auxiliary tower air outlet.

In an alternative embodiment, the secondary tower further comprises: the secondary air inlet is arranged on the side wall of the auxiliary tower body and is positioned between the second heat exchange unit and the second water collecting unit.

In an alternative embodiment, the second heat exchange unit includes: a primary air duct, one end of which is communicated with the primary air inlet, the other end of which is communicated with the main air inlet, the primary air duct being configured to allow air entering from the primary air inlet to enter the main air inlet; and one end of the secondary air channel is communicated with the secondary air inlet, and the other end of the secondary air channel is communicated with the second fan.

According to a specific embodiment of the present disclosure, in another aspect, the present disclosure provides a cooling system, including an air cooling tower according to any one of the above technical solutions.

Compared with the prior art, the scheme of the embodiment of the disclosure has at least the following beneficial effects:

the air cooling tower provided by the disclosure enables air to enter the auxiliary tower firstly, water of the second water collecting unit in the auxiliary tower is uniformly dispersed to the second heat exchange unit for heat exchange, the temperature of air entering the main tower from the air outlet of the auxiliary tower is reduced, and cold air entering the main tower exchanges heat with cooling water in the first heat exchange unit. The final purpose is achieved: the cooling water temperature is reduced to be lower, and the temperature of the cooling water can be reduced to be lower than the wet bulb temperature in principle.

Drawings

Fig. 1 shows a schematic diagram of an air cooling tower structure according to an embodiment of the present disclosure.

Fig. 2 illustrates a schematic top view of an air cooling tower according to an embodiment of the present disclosure.

Fig. 3 illustrates a schematic structural diagram of a second heat exchange unit and a liquid distribution unit according to an embodiment of the present disclosure.

Reference numerals:

100: a main tower; 110: a main tower body; 111: a first sidewall; 120: a first heat exchange unit; 130: a first water collecting unit; 140: a main air inlet; 160: a first fan;

200: a secondary tower; 210: an auxiliary tower body; 220: a second heat exchange unit; 221: a primary air duct; 222: a secondary air duct; 230: a second water collecting unit; 241: a primary air inlet; 242: secondary air intake; 250: an air outlet of the auxiliary tower; 260: a second fan; 270: a liquid distribution unit;

300: and (3) a water pump.

In fig. 1 and 3, the shear head with a is the flow direction of primary air wind; the shear head with b is the flow direction of secondary air wind.

Detailed Description

For the purpose of promoting an understanding of the principles and advantages of the disclosure, reference will now be made in detail to the drawings, in which it is apparent that the embodiments described are only some, but not all embodiments of the disclosure. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe … … in the presently disclosed embodiments, these … … should not be limited to these terms. These terms are only used to distinguish … …. For example, the first … … may also be referred to as the second … …, and similarly the second … … may also be referred to as the first … …, without departing from the scope of the disclosed embodiments.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such element.

In the prior art, the dry air cooler is designed by taking local climate, ambient temperature and other parameters into consideration, and reasonably selecting the air cooler meeting the current process requirements. However, the air cooler has the situation that the heat exchange efficiency is reduced due to the fact that the overall ambient temperature is increased year by year and the problems of internal and external scaling and the like occur along with long-time use of equipment.

Wet bulb temperature: the wet bulb temperature refers to the air temperature when the water vapor in the air reaches saturation in the air with the isenthalpic value, and the air state point is reduced to the 100% relative humidity line along the isenthalpic line on the air enthalpic diagram, and the dry bulb temperature corresponds to the point. In popular terms, wet bulb temperature is the lowest temperature that can be reached in the current environment by evaporating water alone.

In the prior art, the dry air cooler (air cooling tower) generally considers the local climate, the ambient temperature and other parameters at the beginning of design, and reasonably selects the air cooler meeting the current process requirements. However, the air cooler has the situation that the heat exchange efficiency is reduced due to the fact that the overall ambient temperature is increased year by year and the problems of internal and external scaling and the like occur along with long-time use of equipment.

In order to solve at least one technical problem mentioned above, the present disclosure provides an air cooling tower and a cooling system, the air cooling tower may include: a main tower 100, the main tower 100 may include a main tower body 110; the first heat exchange unit 120, the first heat exchange unit 120 is disposed in the main tower body 110; the first water collecting unit 130, the first water collecting unit 130 is disposed at the bottom of the main tower body 110; the main air inlet 140 is arranged on the side wall of the main tower body 110, and the main air inlet 140 is positioned between the first heat exchange unit 120 and the first water collection unit 130; a sub-tower 200, the sub-tower 200 may include a sub-tower body 210; a second heat exchange unit 220, wherein the second heat exchange unit 220 is disposed in the main tower body 110; the second water collecting unit 230, the second water collecting unit 230 is disposed at the bottom of the auxiliary tower body 210, and the second water collecting unit 230 is communicated with the first water collecting unit 130; the first auxiliary tower air outlet 250, the first auxiliary tower air outlet 250 is disposed on a side wall of the auxiliary tower body 210, the first auxiliary tower air outlet 250 is communicated with the main air inlet 140, and the first auxiliary tower air outlet 250 and the second heat exchange unit 220 are located at the same horizontal height. Based on the increase of the ambient temperature, the cooling performance of the air cooling tower is reduced, the problem of the increase of the temperature of the effluent (i.e. the circulating water in the first water collecting unit 130 is also cooling water), the air cooling tower form of the present disclosure increases a part of the filler for indirect evaporation, reduces the local wet bulb temperature of the air inlet, makes the cooling water temperature lower, and can in principle reduce the temperature of the cooling water below the wet bulb temperature. The air cooling tower is mainly indirectly evaporated and cooled, and the air can be subjected to isowet cooling. In indirect evaporative cooling, primary and secondary air flows in countercurrent or cross flow. The dry bulb temperature of the air is lowered by evaporation of the wet surface moisture on the secondary air wind side, and then the primary air wind is cooled by the wall surface of the second heat exchange unit 220. This way only a sensible heat exchange occurs on the primary air side (when the wet bulb temperature of the secondary air wind is higher than the dew point temperature of the primary air wind). In this process, the dry bulb temperature and the wet bulb temperature of the primary air wind are reduced after the primary air wind is treated, and the moisture content is unchanged. Alternative embodiments of the present disclosure are described in detail below with reference to the drawings.

Fig. 1 shows a schematic diagram of an air cooling tower structure according to an embodiment of the present disclosure. As shown in fig. 1, according to a specific embodiment of the present disclosure, in one aspect, there is provided an air cooling tower, which may include: a main tower 100, the main tower 100 may include a main tower body 110; the first heat exchange unit 120, the first heat exchange unit 120 is disposed in the main tower body 110; the first water collecting unit 130, the first water collecting unit 130 is disposed at the bottom of the main tower body 110; the main air inlet 140 is arranged on the side wall of the main tower body 110, and the main air inlet 140 is positioned between the first heat exchange unit 120 and the first water collection unit 130; a sub-tower 200, the sub-tower 200 may include a sub-tower body 210; a second heat exchange unit 220, wherein the second heat exchange unit 220 is disposed in the main tower body 110; the second water collecting unit 230, the second water collecting unit 230 is disposed at the bottom of the auxiliary tower body 210, and the second water collecting unit 230 is communicated with the first water collecting unit 130; the first auxiliary tower air outlet 250, the first auxiliary tower air outlet 250 is disposed on a side wall of the auxiliary tower body 210, the first auxiliary tower air outlet 250 is communicated with the main air inlet 140, and the first auxiliary tower air outlet 250 and the second heat exchange unit 220 are located at the same horizontal height. According to the air cooling tower provided by the disclosure, air firstly enters the auxiliary tower 200, water in the second water collecting unit 230 in the auxiliary tower 200 is uniformly dispersed to the second heat exchanging unit 220 for heat exchanging, the temperature of the air entering the main tower 100 from the first auxiliary tower air outlet 250 is reduced, and the cold air entering the main tower 100 exchanges heat with the cooling water in the first heat exchanging unit 120. The final purpose is achieved: the cooling water temperature is reduced to be lower, and the temperature of the cooling water can be reduced to be lower than the wet bulb temperature in principle.

It should be noted that, the air cooling tower of the present disclosure is mainly indirect evaporative cooling, and the air may realize isowet cooling. In indirect evaporative cooling, primary air (air entering from the primary air intake 241) and secondary air (air entering from the secondary air intake 242) flow in countercurrent or cross. The dry bulb temperature of the air is lowered by evaporation of the moisture on the wet surface on the secondary air side, and then the primary air on the partition wall side is cooled by heat conduction through the wall surface. This way only a sensible heat exchange takes place on the primary air side (when the wet bulb temperature of the secondary air is higher than the dew point temperature of the primary air). In this process, the dry bulb temperature and wet bulb temperature of the primary air after treatment are reduced, while the moisture content is unchanged.

Fig. 2 illustrates a schematic top view of an air cooling tower according to an embodiment of the present disclosure. As shown in fig. 2, in some embodiments, the sub-tower 200 is a plurality of sub-towers 200, and the second water supply units of the plurality of sub-towers 200 are all in communication with the first water collection unit 130. In an alternative embodiment, the secondary tower 200 is annular in shape, surrounding the main tower body 110. In an alternative embodiment, the plurality of main air inlets 140 is a plurality, and the plurality of main air inlets 140 are in one-to-one correspondence with the first auxiliary air outlets 250 of the plurality of auxiliary towers 200. In an alternative embodiment, the main tower body 110 and the auxiliary tower body 210 have a common first side wall 111, and the first side wall 111 is provided with a hole, and the hole is used as the main air inlet 140 of the main tower 100 and the first auxiliary air outlet 250 of the auxiliary tower 200. In a preferred embodiment, as shown in fig. 2, the top view of the main tower body 110 is rectangular, the top view of the auxiliary tower body 210 is rectangular, at least two auxiliary towers 200 are respectively located on two parallel side walls of the main tower 100, the side wall of the auxiliary tower 200 near the main tower 100 is a part of the side wall of the main tower 100 near the auxiliary tower 200 (i.e. the auxiliary tower body 210 has a common first side wall 111), and the main air inlet 140 is disposed on the side wall of the overlapping part of the auxiliary tower 200 and the main tower 100. In some embodiments, the main tower 100 may further comprise: a first fan 160, where the first fan 160 is disposed at the top of the main tower 100. The first fan 160 provides a power system with air volume, primary air is drawn into the auxiliary tower 200 from the primary air inlet 241, enters the main tower 100 from the main air inlet 140 through the primary air duct 221, and is finally carried out of the atmosphere by the first fan 160.

In some embodiments, the first heat exchange unit 120 may include: a plate heat exchanger having a first angle with the horizontal direction of the main tower body 110. The first heat exchange unit 120 is composed of a heat exchange tube with fins, the inside of the first heat exchange unit is a medium to be cooled, and the first heat exchange unit exchanges heat with primary air; the water inlet of the first heat exchange unit 120 is located at one end far away from the first water collecting unit 130, and the water outlet of the first heat exchange unit 120 is located at one end near the first water collecting unit 130. In an alternative embodiment, the first included angle is 30-60 °.

In some embodiments, the plate heat exchangers are plural, and the plural plate heat exchangers are arranged in a horizontal direction of the main tower body 110.

In some embodiments, the secondary tower 200 may further comprise: a second fan 260, the second fan 260 is disposed at the top of the sub-tower 200. The power system with the air volume provided by the second fan 260 pumps secondary air into the auxiliary tower 200 from the secondary air inlet 242, and the secondary air passes through the secondary air channel 222, and acts on cooling water sprayed by the liquid distribution unit 270 in the secondary air channel 222 to cool primary air of the primary air channel 221, and finally is carried out of the atmosphere by the second fan 260. In some embodiments, the secondary tower 200 may further comprise: the liquid distribution unit 270, the liquid distribution unit 270 is disposed in the auxiliary tower body 210, the liquid distribution unit 270 is disposed between the second fan 260 and the second heat exchange unit 220, and the liquid distribution unit 270 is communicated with the second water collection unit 230. In an alternative embodiment, the liquid distribution unit 270 sprays cooling water into the secondary air duct 222. The liquid distribution unit 270 distributes water (cooling water, also circulating water) uniformly to the surface of the second heat exchange unit 220, so as to achieve a heat exchange effect. In an alternative embodiment, the air cooling tower may further include: the water pump 300 (spray water pump), the water inlet of the water pump 300 is communicated with the second water collecting unit 230, the water outlet of the water pump 300 is communicated with the liquid distributing unit 270, and the water pump 330 is configured to provide power for the spraying of the liquid distributing unit 270. The spray water pump 300 pumps the cooling water in the tank of the second water collecting unit 230 to the liquid distributing unit 270. The liquid distribution unit 270 uniformly distributes the cooling water to the second heat exchange unit 220, and the secondary air exchanges heat with the primary air of the ambient temperature in the primary air duct 221 from the secondary air duct 222. The temperature of the primary air wind is reduced. The primary air wind is changed into low-temperature wind, so that the final purpose is achieved: the cooling water temperature is reduced to be lower, and the temperature of the cooling water can be reduced to be lower than the wet bulb temperature in principle.

In some embodiments, the secondary tower 200 may further comprise: the primary air inlet 241 is disposed on a side wall of the sub-tower body 210 away from one end of the first sub-tower air outlet 250.

In some embodiments, the secondary tower 200 may further comprise: the secondary air inlet 242 is disposed on a side wall of the auxiliary tower body 210, and the secondary air inlet 242 is disposed between the second heat exchange unit 220 and the second water collection unit 230.

Fig. 3 illustrates a schematic structural diagram of the second heat exchange unit 220 and the liquid distribution unit 270 according to an embodiment of the present disclosure. As shown in fig. 3, in some embodiments, the second heat exchange unit 220 may include: a primary air duct 221, one end of the primary air duct 221 is communicated with the primary air inlet 241, the other end of the primary air duct 221 is communicated with the main air inlet 140, and the primary air duct 221 is configured to enable air entering from the primary air inlet 241 to enter the main air inlet 140; and a secondary air channel 222, wherein one end of the secondary air channel 222 is communicated with the secondary air inlet 242, and the other end of the secondary air channel 222 is communicated with the second fan 260. The second heat exchange unit 220 is divided into two channels, namely a horizontal channel (the primary air channel 221) and a vertical channel (the secondary air channel 222), the vertical channel passes through the water sprayed by the liquid distribution unit 270, and the horizontal channel passes through the primary air wind.

And (3) cooling water circulation: the cooling water is placed in the first water collecting unit 130, the second water collecting unit 230 is communicated with the first water collecting unit 130, the cooling water is sprayed to the second heat exchanging unit 220 through the liquid distributing unit 270 by the second water collecting unit 230 through the energy supply (power supply) of the water pump 300, and the cooling water and the secondary air wind act together to cool the primary air wind and then fall back to the second water collecting unit 230; condensed water is also generated when the primary air exchanges heat with the first heat exchanging unit 120, and falls back to the first water collecting unit 130.

Circulation of the medium to be cooled: the medium to be cooled enters from the water inlet of the first heat exchange unit 120, exchanges heat with the primary air wind through the first heat exchange unit 120, and flows out from the water outlet of the first heat exchange unit 120.

Primary air circulation: the power system with the air volume provided by the first fan 160 pumps primary air into the auxiliary tower 200 from the primary air inlet 241, cools down by cooling water and secondary air through the second heat exchange unit 220 (specifically, the secondary air channel 222), then enters the main tower 100 through the primary air channel 221 and the main air inlet 140, cools down the medium to be cooled in the first heat exchange unit 120 through the first heat exchange unit 120 in the main tower 100, and finally is carried out of the atmosphere by the first fan 160.

Secondary air wind circulation: the power system with the air volume provided by the second fan 260 pumps secondary air into the auxiliary tower 200 from the secondary air inlet 242, and the secondary air passes through the secondary air channel 222, and acts on cooling water sprayed by the liquid distribution unit 270 in the secondary air channel 222 to cool primary air of the primary air channel 221, and finally is carried out of the atmosphere by the second fan 260.

According to a specific embodiment of the present disclosure, in another aspect, a cooling system is provided, which may include an air cooling tower as in any of the above embodiments.

The present disclosure is directed to an air cooling tower and cooling system, the air cooling tower may include: a main tower 100, the main tower 100 may include a main tower body 110; the first heat exchange unit 120, the first heat exchange unit 120 is disposed in the main tower body 110; the first water collecting unit 130, the first water collecting unit 130 is disposed at the bottom of the main tower body 110; the main air inlet 140 is arranged on the side wall of the main tower body 110, and the main air inlet 140 is positioned between the first heat exchange unit 120 and the first water collection unit 130; a sub-tower 200, the sub-tower 200 may include a sub-tower body 210; a second heat exchange unit 220, wherein the second heat exchange unit 220 is disposed in the main tower body 110; the second water collecting unit 230, the second water collecting unit 230 is disposed at the bottom of the auxiliary tower body 210, and the second water collecting unit 230 is communicated with the first water collecting unit 130; the first auxiliary tower air outlet 250, the first auxiliary tower air outlet 250 is disposed on a side wall of the auxiliary tower body 210, the first auxiliary tower air outlet 250 is communicated with the main air inlet 140, and the first auxiliary tower air outlet 250 and the second heat exchange unit 220 are located at the same horizontal height. According to the air cooling tower provided by the disclosure, air firstly enters the auxiliary tower 200, water in the second water collecting unit 230 in the auxiliary tower 200 is uniformly dispersed to the second heat exchanging unit 220 for heat exchanging, the temperature of the air entering the main tower 100 from the first auxiliary tower air outlet 250 is reduced, and the cold air entering the main tower 100 exchanges heat with the cooling water in the first heat exchanging unit 120. The final purpose is achieved: the cooling water temperature is reduced to be lower, and the temperature of the cooling water can be reduced to be lower than the wet bulb temperature in principle.

Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The system or the device disclosed in the embodiments are relatively simple in description, and the relevant points refer to the description of the method section because the system or the device corresponds to the method disclosed in the embodiments.

The above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (14)

1. An air cooling tower, comprising:

a main tower comprising a main tower body; the first heat exchange unit is arranged in the main tower body; the first water collecting unit is arranged at the bottom of the main tower body; the main air inlet is arranged on the side wall of the main tower body and is positioned between the first heat exchange unit and the first water collecting unit;

the auxiliary tower comprises an auxiliary tower body; the second heat exchange unit is arranged in the main tower body; the second water collecting unit is arranged at the bottom of the auxiliary tower body and is communicated with the first water collecting unit; the auxiliary tower air outlet is formed in the side wall of the auxiliary tower body and communicated with the main air inlet, and the auxiliary tower air outlet and the second heat exchange unit are located at the same horizontal height.

2. An air cooling tower according to claim 1, wherein,

the plurality of auxiliary towers are provided, and the second water supply units of the plurality of auxiliary towers are communicated with the first water collection unit; or (b)

The auxiliary tower is annular and surrounds the main tower body.

3. An air cooling tower according to claim 2, wherein,

the main air inlets are multiple, and the main air inlets are communicated with the auxiliary tower air outlets of the auxiliary towers in a one-to-one correspondence manner.

4. An air cooling tower according to claim 1, wherein,

the main tower body and the auxiliary tower body are provided with a first side wall which is common, a hole is formed in the first side wall, and the hole is used as a main air inlet of the main tower and an auxiliary air outlet of the auxiliary tower at the same time.

5. The air cooling tower of claim 1, wherein the main tower further comprises:

the first fan is arranged at the top of the main tower.

6. The air cooling tower of claim 1, wherein the first heat exchange unit comprises:

the plate heat exchanger and the horizontal direction of the main tower body have a first included angle.

7. An air cooling tower according to claim 6, wherein,

the first included angle is 30-60 degrees.

8. The air cooling tower according to claim 6 or 7, wherein,

the plate heat exchangers are multiple, and the multiple plate heat exchangers are arranged along the horizontal direction of the main tower body.

9. The air cooling tower of claim 1, wherein the secondary tower further comprises:

the second fan is arranged at the top of the auxiliary tower.

10. The air cooling tower of claim 9, wherein the secondary tower further comprises:

the liquid distribution unit is arranged in the auxiliary tower body and is positioned between the second fan and the second heat exchange unit, and the liquid distribution unit is communicated with the second water collection unit.

11. The air cooling tower of claim 1, wherein the secondary tower further comprises:

the primary air inlet is arranged on the side wall of one end of the auxiliary tower body, which is far away from the auxiliary tower air outlet.

12. The air cooling tower of claim 11, wherein the secondary tower further comprises:

the secondary air inlet is arranged on the side wall of the auxiliary tower body and is positioned between the second heat exchange unit and the second water collecting unit.

13. The air cooling tower of claim 12, wherein the second heat exchange unit comprises:

a primary air duct, one end of which is communicated with the primary air inlet, the other end of which is communicated with the main air inlet, the primary air duct being configured to allow air entering from the primary air inlet to enter the main air inlet; and one end of the secondary air channel is communicated with the secondary air inlet.

14. A cooling system comprising an air cooling tower according to any one of claims 1-13.