Cooling tower system

Abstract

A cooling tower system, comprising: a first cooling cycle system, which comprises a first heat absorption portion, a first wet-cooling heat dissipation portion and a first dry-cooling heat dissipation portion that are in communication; a second cooling cycle system, which comprises a second heat absorption portion, a second wet-cooling heat dissipation portion and a second dry-cooling heat dissipation portion, which are in communication, wherein the first heat absorption portion and the second heat absorption portion are used for performing heat absorption on the same object; and a cooling tower, wherein in the cooling tower, the first wet-cooling heat dissipation portion and the second dry-cooling heat dissipation portion are connected in series in a first air duct, the second wet-cooling heat dissipation portion and the first dry-cooling heat dissipation portion are connected in series in a second air duct, and the first air duct and the second air duct are arranged in parallel. When it is necessary to turn on a wet-cooling heat dissipation portion and a dry-cooling heat dissipation portion of one cooling cycle system, the wet-cooling heat dissipation portion and the dry-cooling heat dissipation portion can be respectively turned on in different air ducts, such that interference between the wet-cooling heat dissipation portion and the dry-cooling heat dissipation portion of the same cooling cycle systems can be effectively reduced, and thus, a better heat exchange effect can be achieved when a single cooling cycle system is turned on.

Description

A cooling tower system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 28, 2023, with application number 202310779717.X and invention name “A Cooling Tower System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the field of cooling technology, and more particularly to a cooling tower system. Background Art

[0003] Currently, some cooling tower systems utilize a cooling circuit that simultaneously passes through both dry and wet zones to achieve optimal heat dissipation. Furthermore, multiple cooling circuits are typically configured to provide greater adjustability and enhanced cooling capacity. The inventors have discovered that the overall heat exchange efficiency of cooling tower systems with multiple cooling circuits can be further improved because the multiple cooling circuits are relatively independent of each other.

[0004] In summary, how to effectively solve the problem of poor heat exchange effect of cooling tower system is a problem that technicians in this field urgently need to solve.

[0005] Summary of the Invention

[0006] In view of this, an object of the present invention is to provide a cooling tower system, which can effectively solve the problem of poor heat exchange effect of the cooling tower system.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A cooling tower system comprising:

[0009] The first cooling circulation system includes a first heat absorbing part, a first wet cooling heat dissipating part and a first dry cooling heat dissipating part that are connected to each other;

[0010] The second cooling cycle system comprises a second heat absorbing part, a second wet cooling heat dissipating part and a second dry cooling heat dissipating part in communication with each other, wherein the first heat absorbing part and the second heat absorbing part are used to absorb heat from the same object;

[0011] Cooling tower, in the hot and cold tower, the first wet cooling heat dissipation part and the second dry cooling heat dissipation part are connected in series in the first air duct, the second wet cooling heat dissipation part and the first dry cooling heat dissipation part are connected in series in the second air duct, and the first air duct and the second air duct are arranged in parallel.

[0012] In the above-mentioned cooling tower system, for the first cooling circulation system and the second cooling circulation system, the wet cooling heat dissipation part and the dry cooling heat dissipation part are cross-arranged in the cooling tower. This is because when in use, when it is necessary to open the wet cooling heat dissipation part and the dry cooling heat dissipation part of one of the cooling circulation systems, they can be opened in different air ducts respectively, which can effectively reduce the interference between the wet cooling heat dissipation part and the dry cooling heat dissipation part of the same cooling circulation system, so that a better heat exchange effect can be achieved when a single cooling circulation system is turned on. When the two cooling circulation systems open the wet cooling heat dissipation part or the dry cooling heat dissipation part respectively, the use status will not change. Moreover, when the two cooling circulation systems are turned on at the same time, and the wet cooling heat dissipation part and the dry cooling heat dissipation part are turned on at the same time, the above-mentioned cross-arrangement is conducive to the heat balance of the two cooling circulation systems. In summary, the cooling tower system can effectively solve the problem of poor heat exchange effect of the cooling tower system.

[0013] Preferably, in the first air duct, the first wet cooling heat dissipation part is located on the air inlet side of the second dry cooling heat dissipation part; in the second air duct, the second wet cooling heat dissipation part is located on the air inlet side of the first dry cooling heat dissipation part.

[0014] Preferably, in the circulation passage of the first cooling circulation system, the refrigerant inlet end of the first wet cooling heat dissipation part is connected to the refrigerant outlet end of the first dry cooling heat dissipation part; in the circulation passage of the second cooling circulation system, the refrigerant inlet end of the second wet cooling heat dissipation part is connected to the refrigerant outlet end of the second dry cooling heat dissipation part.

[0015] Preferably, the first cooling circulation system is a water cooling circulation system, and the second cooling circulation system is a mechanical refrigeration circulation system.

[0016] Preferably, the first heat absorbing portion is arranged closer to the upstream of the air duct than the second heat absorbing portion.

[0017] Preferably, the first heat absorbing part and the second heat absorbing part are provided with a common air duct.

[0018] Preferably, a heat exchange system is further included, wherein the heat dissipation part of the heat exchange system is in thermal contact with both the first heat absorption part and the second heat absorption part, and the heat absorption part of the heat exchange system is used to be arranged close to the heat source.

[0019] Preferably, the first heat absorbing part and the second heat absorbing part accelerate the circulation of air through different fans.

[0020] Preferably, the air inlet of the first air duct is arranged opposite to the air inlet of the second air duct.

[0021] Preferably, both the air outlet of the first air duct and the air outlet of the second air duct are provided with fans. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] FIG1 is a schematic structural diagram of a cooling tower system provided by an embodiment of the present invention;

[0024] FIG2 is a schematic structural diagram of another cooling tower system provided by an embodiment of the present invention.

[0025] The markings in the accompanying drawings are as follows: first cooling circulation system 1, second cooling circulation system 2, cooling tower 3, external fan 4, internal fan 5, heat exchange system 6; first wet cooling heat dissipation part 11, first dry cooling heat dissipation part 12, first heat absorption part 13, circulation pump 14; second wet cooling heat dissipation part 21, second dry cooling heat dissipation part 22, second heat absorption part 23, compressor 24, throttling element 25; first air duct 31, second air duct 32. DETAILED DESCRIPTION

[0026] The embodiment of the present invention discloses a cooling tower system to effectively solve the problem of poor heat exchange effect of the cooling tower system.

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please refer to Figures 1-2. Figure 1 is a schematic structural diagram of a cooling tower system provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of another cooling tower system provided by an embodiment of the present invention.

[0029] In some embodiments, a cooling tower system is provided. Specifically, the cooling tower system mainly includes a first cooling circulation system 1 , a second cooling circulation system 2 and a cooling tower 3 .

[0030] Either the first cooling circulation system 1 or the second cooling circulation system 2 can be a water cooling system or a mechanical refrigeration system. It mainly includes a heat dissipation part and a heat absorption part, wherein the heat absorption part is used to absorb heat and the heat dissipation part is used to dissipate heat. In a mechanical refrigeration system, the heat absorption part is generally an evaporator and the heat dissipation part is generally a condenser. It should be noted that one or more first cooling circulation systems 1 can be provided, and one or more second cooling circulation systems 2 can also be provided. Of course, other cooling circulation systems can also be provided.

[0031] Specifically, for ease of explanation, the first cooling cycle system 1 includes a first heat absorbing section 13, a first wet cooling section 11, and a first dry cooling section 12, which are connected in sequence. The second cooling cycle system 2 includes a second heat absorbing section 23, a second wet cooling section 21, and a second dry cooling section 22, which are connected in sequence. The first heat absorbing section 13 and the second heat absorbing section 23 are used to absorb heat from the same object and can be located in the same location or in different locations, but they absorb heat from the same object. That is, at least the heat dissipation objects of each of the first and second cooling cycle systems 1 and 2 have overlapping portions, so that they function the same for some heat dissipation objects. The first cooling cycle system 1 and the second cooling cycle system 2 both include both wet cooling sections and dry cooling sections. The wet cooling sections generate evaporation by spraying liquid into the wet cooling sections, and then the evaporated gas is discharged to carry away heat. The dry cooling sections exchange heat with the passing air, which then carries away heat.

[0032] In the cooling tower 3, there are two air ducts, namely the first air duct 31 and the second air duct 32. The first air duct 31 and the second air duct 32 are arranged in parallel. The fans can be shared or different fans can be used to accelerate the flow of the air flow. Generally speaking, different fans are set for the first air duct 31 and the second air duct 32.

[0033] The air duct of the first wet cooling section 11 and the air duct of the second dry cooling section 22 are connected in series with the first air duct 31, and the air duct of the second wet cooling section 21 and the air duct of the first dry cooling section 12 are connected in series with the second air duct 32. That is, in the first air duct 31, the series connection of the first wet cooling section 11 and the second dry cooling section 22 means that the air passes through the first wet cooling section 11 and the second dry cooling section 22, or the second dry cooling section 22 and the first wet cooling section 11 in sequence; while in the second air duct 32, the series connection of the second wet cooling section 21 and the first dry cooling section 12 means that the air passes through the second wet cooling section 21 and the first dry cooling section 12 in sequence, or the first dry cooling section 12 and the second wet cooling section 21 in sequence.

[0034] In the above-mentioned cooling tower system, for the first cooling circulation system 1 and the second cooling circulation system 2, the wet cooling heat dissipation part and the dry cooling heat dissipation part are cross-arranged in the cooling tower 3. This is because when in use, when it is necessary to open the wet cooling heat dissipation part and the dry cooling heat dissipation part of one of the cooling circulation systems, they can be opened in different air ducts respectively, which can effectively reduce the interference between the wet cooling heat dissipation part and the dry cooling heat dissipation part of the same cooling circulation system, so that a better heat exchange effect can be achieved when a single cooling circulation system is turned on. When the two cooling circulation systems open the wet cooling heat dissipation part or the dry cooling heat dissipation part respectively, the use status will not change. Moreover, when the two cooling circulation systems are opened at the same time, and the wet cooling heat dissipation part and the dry cooling heat dissipation part are opened at the same time, the above-mentioned cross-arrangement is conducive to the heat balance of the two cooling circulation systems. In summary, the cooling tower system can effectively solve the problem of poor heat exchange effect of the cooling tower system.

[0035] In some embodiments, as described above, the order in which the wet cooling heat dissipation unit and the dry cooling heat dissipation unit are arranged in the air duct is not required. However, it is further considered that if the dry cooling heat dissipation unit is arranged upstream of the wet cooling heat dissipation unit, the high-temperature wind body will enter the wet cooling heat dissipation unit, which will accelerate the evaporation of the liquid at the wet cooling heat dissipation unit, thereby increasing the amount of scaling and reducing the service life of the wet cooling heat dissipation unit. Based on this, it is preferred here that the wet cooling heat dissipation unit is arranged upstream of the dry cooling heat dissipation unit. Specifically, in the first air duct 31, the first wet cooling heat dissipation unit 11 is located on the air inlet side of the second dry cooling heat dissipation unit 22; in the second air duct 32, the second wet cooling heat dissipation unit 21 is located on the air inlet side of the first dry cooling heat dissipation unit 12. In some cases, after entering the wet cooling heat dissipation unit, the external wind body will form a high-humidity wind body, and after entering the dry cooling heat dissipation unit, it will further evaporate in the gas and can carry out more heat.

[0036] In some embodiments, in any cooling circulation system, the circulating refrigerant or other cooling liquid may first flow into the wet cooling section and then flow through the dry cooling section, or may first flow into the dry cooling section and then flow through the wet cooling section. Of course, in addition to the aforementioned series connection of the dry cooling section and the wet cooling section, the dry cooling section and the wet cooling section may also be connected in parallel.

[0037] In some embodiments, it is preferred that, in the circulation path of the first cooling circulation system 1, the refrigerant inlet of the first wet cooling heat dissipation unit 11 is connected to the refrigerant outlet of the first dry cooling heat dissipation unit 12; and in the circulation path of the second cooling circulation system 2, the refrigerant inlet of the second wet cooling heat dissipation unit 21 is connected to the refrigerant outlet of the second dry cooling heat dissipation unit 22. This is because the temperature in the wet zone is generally less than or equal to the temperature in the dry zone. In particular, when the air passes through the wet zone first and then the dry zone, the temperature in the wet zone can be better ensured to be lower than that in the dry zone. Therefore, if the refrigerant flows into the dry zone first and then into the wet zone, further cooling can be achieved.

[0038] In some embodiments, the first cooling circulation system 1 can be a water cooling circulation system, and the second cooling circulation system 2 can be a mechanical refrigeration circulation system. During the mechanical refrigeration stage, by shutting down the internal compressor 24, the temperature of the wet zone is lower than that of the dry zone when in use, forming a cold-hot temperature difference. In addition to the system circulation driven by the pump and / or compressor 24, the cold-hot temperature difference still has the effect of driving the system circulation.

[0039] In some embodiments, one of the two cooling circulation systems is a water cooling circulation system and the other is a mechanical refrigeration circulation system. Then, when in use, turning on the water cooling circulation system alone and turning on the mechanical refrigeration circulation system alone will form different cooling effects, thereby forming more cooling level adjustments. When the cooling temperature requirement is relatively low, the water cooling circulation system can be turned on first. When the water cooling circulation system is turned on, it is divided into turning on the wet zone alone, turning on the dry zone alone, and turning on the wet zone and the dry zone at the same time. This can be selected according to the ambient temperature and cooling requirements. When the cooling requirement increases further, the water cooling circulation system can be turned off and the mechanical refrigeration circulation system can be turned on. Similarly, the mechanical refrigeration circulation system is also divided into turning on the wet zone alone, turning on the dry zone alone, and turning on the wet zone and the dry zone at the same time. When the cooling requirement increases further, the water cooling circulation system and the mechanical refrigeration circulation system are turned on at the same time.

[0040] If the first cooling circulation system 1 is a water-cooling circulation system, it includes a first dry heat dissipation part 12, a first wet heat dissipation part 11, a circulation pump 14, and a first heat absorption part 13 connected in sequence, wherein the circulation pump is used to accelerate the flow of fluid therein.

[0041] The second cooling cycle system 2 is a mechanical refrigeration cycle system and includes a second dry cooling heat dissipation part 22, a second wet cooling heat dissipation part 21, a throttling element 25, a second heat absorption part 23 and a compressor 24 which are connected in sequence.

[0042] In some embodiments, the first heat absorbing part 13 and the second heat absorbing part 23 can share a common air duct, such as a common compressor.

[0043] First heat absorption section 13 is positioned upstream of second heat absorption section 23 in the air duct. When the two cooling circulation systems operate together, first heat absorption section 13 pre-absorbs heat, preventing its own temperature from dropping too low. This approach achieves better overall cooling and effectively reduces the operating pressure of the second refrigerant circulation system.

[0044] In some embodiments, the first heat absorption section 13 and the second heat absorption section 23 can share a common air duct and internal fan 5. This makes the overall structure more compact and reduces manufacturing costs. Because the first cooling cycle 1 and the second cooling cycle 2 are sometimes used alternately, interference between the first heat absorption section 13 and the second heat absorption section 23 is minimal, which facilitates obtaining a larger air volume and improving heat absorption efficiency.

[0045] In some embodiments, as shown in FIG1 , different fans can be used to accelerate the air flow in the first heat absorbing portion 13 and the second heat absorbing portion 23 . That is, multiple internal fans 5 are provided to accelerate the air flow in the first heat absorbing portion 13 and the second heat absorbing portion 23 , respectively.

[0046] In some embodiments, as shown in FIG2 , it is considered that the first heat absorbing portion 13 and the second heat absorbing portion 23 are provided simultaneously to dissipate heat from the heat source simultaneously. However, in some cases, the location of the heat source is compact and it is not possible to accommodate too many heat absorbing portions at the same time. Based on this, it is preferred that a heat exchange system 6 is also provided, and the heat dissipation portion of the heat exchange system 6 is in thermal contact with both the first heat absorbing portion 13 and the second heat absorbing portion 23. The heat absorbing portion of the heat exchange system 6 is arranged close to the heat source, so that the heat exchange system 6 acts as an intermediate system, centrally absorbing heat from the first heat absorbing portion 13 and the second heat absorbing portion 23 and then transferring it to the heat source. This not only facilitates a compact location at the heat source, but also allows for uniform heat transfer.

[0047] In some embodiments, the cooling tower 3 includes a first air duct 31 and a second air duct 32 arranged in parallel, and the air inlets of the two air ducts are arranged in opposite directions to provide a larger air inlet range, such as the air inlets of the two air ducts are arranged in opposite directions horizontally, and the air outlets of the two air ducts are arranged side by side and both are arranged upward.

[0048] In some embodiments, both the air outlet of the first air duct 31 and the air outlet of the second air duct 32 may be provided with an external fan 4 . Of course, both the air inlet of the first air duct 31 and the air inlet of the second air duct 32 may also be provided with an external fan.

[0049] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0050] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling tower system, characterized in that: include: The first cooling circulation system comprises a first heat absorbing part, a first wet cooling part and a first dry cooling part which are connected to each other; The second cooling cycle system comprises a second heat absorbing part, a second wet cooling heat dissipating part and a second dry cooling heat dissipating part which are connected to each other, wherein the first heat absorbing part and the second heat absorbing part are used to absorb heat from the same object; A cooling tower, in which the first wet cooling heat dissipation part and the second dry cooling heat dissipation part are connected in series in the first air duct, the second wet cooling heat dissipation part and the first dry cooling heat dissipation part are connected in series in the second air duct, and the first air duct and the second air duct are arranged in parallel.

2. The cooling tower system according to claim 1, characterized in that: In the first air duct, the first wet cooling part is located at the air inlet side of the second dry cooling part; in the second air duct, the second wet cooling part is located at the air inlet side of the first dry cooling part.

3. The cooling tower system according to claim 2, characterized in that: In the circulation passage of the first cooling circulation system, the refrigerant inlet end of the first wet cooling heat dissipation part is connected to the refrigerant outlet end of the first dry cooling heat dissipation part; in the circulation passage of the second cooling circulation system, the refrigerant inlet end of the second wet cooling heat dissipation part is connected to the refrigerant outlet end of the second dry cooling heat dissipation part.

4. The cooling tower system according to claim 3, characterized in that: The first cooling circulation system is a water cooling circulation system, and the second cooling circulation system is a mechanical refrigeration circulation system.

5. The cooling tower system according to claim 4, characterized in that: The first heat absorbing portion is disposed closer to the upstream of the air duct than the second heat absorbing portion.

6. The cooling tower system according to any one of claims 1 to 5, characterized in that: The first heat absorbing part and the second heat absorbing part are arranged in a common air duct.

7. The cooling tower system according to any one of claims 1 to 4, characterized in that: It also includes a heat exchange system, wherein the heat dissipation part of the heat exchange system is in thermal contact with both the first heat absorption part and the second heat absorption part, and the heat absorption part of the heat exchange system is used to be arranged close to a heat source.

8. The cooling tower system according to any one of claims 1 to 4, characterized in that: The first heat absorbing part and the second heat absorbing part accelerate the flow of air through different fans.

9. The cooling tower system according to any one of claims 1 to 4, characterized in that: The air inlet of the first air duct is arranged opposite to the air inlet of the second air duct.

10. The cooling tower system according to any one of claims 1 to 4, characterized in that: The air outlet of the first air duct and the air outlet of the second air duct are both provided with fans.