A cooling tower system

Abstract

The application discloses a cooling tower system, which comprises a first cooling circulation system, a second cooling circulation system and a cooling tower. The first cooling circulation system comprises a first heat absorption part, a first wet cooling heat dissipation part and a first dry cooling heat dissipation part which are connected in series. The second cooling circulation system comprises a second heat absorption part, a second wet cooling heat dissipation part and a second dry cooling heat dissipation part which are connected in series. The first heat absorption part and the second heat absorption part are used for absorbing heat from the same object. In the cooling tower, the first wet cooling heat dissipation part and the second dry cooling heat dissipation part are connected in series in a first air duct, the second wet cooling heat dissipation part and the first dry cooling heat dissipation part are connected in series in a second air duct, and the first air duct and the second air duct are connected in parallel. When the wet cooling heat dissipation part and the dry cooling heat dissipation part of one of the cooling circulation systems need to be opened, the wet cooling heat dissipation part and the dry cooling heat dissipation part can be opened in different air ducts respectively, so that the interference between the wet cooling heat dissipation part and the dry cooling heat dissipation part of the same cooling circulation system can be effectively reduced, and better heat exchange effect can be achieved when a single cooling circulation system is opened.

Description

Technical Field

[0001] This invention relates to the field of cooling technology, and more specifically, to a cooling tower system. Background Technology

[0002] Currently, in some cooling tower systems, to achieve better heat dissipation, the cooling circulation system typically passes through both dry and wet zones simultaneously. Furthermore, to provide greater adjustability and stronger cooling capacity, multiple cooling circulation systems are generally incorporated. Through long-term research, the inventors have discovered that the overall heat exchange efficiency of multi-circulation cooling tower systems can be further improved because these multiple systems operate relatively independently.

[0003] In conclusion, how to effectively solve the problem of poor heat exchange performance in cooling tower systems is a problem that urgently needs to be addressed by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a cooling tower system that can effectively solve the problem of poor heat exchange effect in cooling tower systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A cooling tower system, comprising:

[0007] The first cooling circulation system includes a first heat absorption section, a first wet cooling heat dissipation section and a first dry cooling heat dissipation section connected in series;

[0008] The second cooling cycle system includes a second heat absorption section, a second wet cooling heat dissipation section and a second dry cooling heat dissipation section connected in series, wherein the first heat absorption section and the second heat absorption section are used to absorb heat from the same object.

[0009] In the cooling tower, the first wet cooling heat dissipation section and the second dry cooling heat dissipation section are connected in series in the first air duct, and the second wet cooling heat dissipation section and the first dry cooling heat dissipation section are connected in series in the second air duct. The first air duct and the second air duct are arranged in parallel.

[0010] In the aforementioned cooling tower system, for both the first and second cooling circulation systems, the wet and dry cooling heat dissipation sections are arranged in a cross-configuration. This allows for separate activation of the wet and dry cooling heat dissipation sections in different air ducts during operation, effectively reducing interference between the wet and dry cooling heat dissipation sections within the same cooling circulation system. This results in better heat exchange performance when a single cooling circulation system is activated. The operating status remains unchanged whether either the wet or dry cooling heat dissipation section of the two cooling circulation systems is activated independently. Furthermore, when both cooling circulation systems are activated simultaneously, with both wet and dry cooling heat dissipation sections activated concurrently, the cross-configuration promotes heat balance between the two systems. In conclusion, this cooling tower system effectively solves the problem of poor heat exchange performance in traditional cooling tower systems.

[0011] Preferably, in the first air duct, the first wet cooling heat dissipation section is located on the air inlet side of the second dry cooling heat dissipation section; in the second air duct, the second wet cooling heat dissipation section is located on the air inlet side of the first dry cooling heat dissipation section.

[0012] Preferably, in the circulation path of the first cooling circulation system, the refrigerant inlet end of the first wet cooling heat dissipation unit is connected to the refrigerant outlet end of the first dry cooling heat dissipation unit; in the circulation path of the second cooling circulation system, the refrigerant inlet end of the second wet cooling heat dissipation unit is connected to the refrigerant outlet end of the second dry cooling heat dissipation unit.

[0013] Preferably, the first cooling cycle system is a water-cooled cycle system, and the second cooling cycle system is a mechanical refrigeration cycle system.

[0014] Preferably, the first heat-absorbing part is positioned upstream of the air duct compared to the second heat-absorbing part.

[0015] Preferably, the first heat-absorbing part and the second heat-absorbing part are provided with a shared air duct.

[0016] Preferably, it further 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 arranged to be close to the heat source.

[0017] Preferably, the first heat-absorbing part and the second heat-absorbing part are accelerated by different fans to facilitate airflow.

[0018] Preferably, the air inlet of the first air duct is positioned opposite to the air inlet of the second air duct.

[0019] Preferably, both the air outlet of the first air duct and the air outlet of the second air duct are equipped with fans. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a cooling tower system provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of another cooling tower system provided in an embodiment of the present invention.

[0023] The following labels are shown in the attached diagram:

[0024] First cooling circulation system 1, second cooling circulation system 2, cooling tower 3, external fan 4, internal fan 5, heat exchange system 6;

[0025] First wet cooling heat dissipation section 11, first dry cooling heat dissipation section 12, first heat absorption section 13, circulation pump 14;

[0026] Second wet cooling heat dissipation unit 21, second dry cooling heat dissipation unit 22, second heat absorption unit 23, compressor 24, throttling element 25;

[0027] First air duct 31, second air duct 32. Detailed Implementation

[0028] This invention discloses a cooling tower system to effectively solve the problem of poor heat exchange performance in cooling tower systems.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-2 , Figure 1 This is a schematic diagram of a cooling tower system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another cooling tower system provided in an embodiment of the present invention.

[0031] In some embodiments, a cooling tower system is provided, specifically the cooling tower system mainly including a first cooling circulation system 1, a second cooling circulation system 2, and a cooling tower 3.

[0032] Either the first cooling cycle system 1 or the second cooling cycle system 2 can be a water-cooling system or a mechanical refrigeration system. It mainly includes a heat dissipation section and a heat absorption section, where the heat absorption section absorbs heat and the heat dissipation section dissipates heat. In a mechanical refrigeration system, the heat absorption section is generally an evaporator, and the heat dissipation section is generally a condenser. It should be noted that one or more first cooling cycle systems 1, one or more second cooling cycle systems 2, and other cooling cycle systems can be provided.

[0033] Specifically, for ease of explanation, the first cooling circulation system 1 includes a first heat-absorbing section 13, a first wet-cooling heat dissipation section 11, and a first dry-cooling heat dissipation section 12 connected in sequence; the second cooling circulation system 2 includes a second heat-absorbing section 23, a second wet-cooling heat dissipation section 21, and a second dry-cooling heat dissipation section 22 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. They can be located in the same position or in different positions, but they absorb heat from the same object, meaning that at least their respective heat dissipation objects overlap, so that they function identically for some heat dissipation objects. Both the first cooling circulation system 1 and the second cooling circulation system 2 include both wet-cooling heat dissipation sections and dry-cooling heat dissipation sections. The wet-cooling heat dissipation section generates evaporation through contact with sprayed liquid, and then the evaporated gas is discharged to carry away heat; while the dry-cooling heat dissipation section exchanges heat with a flowing airflow, which then carries away the heat.

[0034] The cooling tower 3 has 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. They can share a fan or use different fans to accelerate the airflow within them. Generally, the first air duct 31 and the second air duct 32 are equipped with different fans.

[0035] The aforementioned first humidified cooling heat dissipation section 11 and second dry cooling heat dissipation section 22 are connected in series in the first air duct 31, and the aforementioned second humidified cooling heat dissipation section 21 and first dry cooling heat dissipation section 12 are connected in series in the second air duct 32. That is, in the first air duct 31, the first humidified cooling heat dissipation section 11 and second dry cooling heat dissipation section 22 are connected in series, meaning that the airflow passes through the first humidified cooling heat dissipation section 11 and second dry cooling heat dissipation section 22 in sequence, or passes through the second dry cooling heat dissipation section 22 and first humidified cooling heat dissipation section 11 in sequence; while in the second air duct 32, the second humidified cooling heat dissipation section 21 and first dry cooling heat dissipation section 12 are connected in series, meaning that the airflow passes through the second humidified cooling heat dissipation section 21 and first dry cooling heat dissipation section 12 in sequence, or passes through the first dry cooling heat dissipation section 12 and second humidified cooling heat dissipation section 21 in sequence.

[0036] In the aforementioned cooling tower system, for the first cooling circulation system 1 and the second cooling circulation system 2, the wet cooling heat dissipation section and the dry cooling heat dissipation section are arranged alternately in the cooling tower 3. This allows for separate activation of the wet and dry cooling heat dissipation sections of one cooling circulation system during operation, through different air ducts. This effectively reduces interference between the wet and dry cooling heat dissipation sections within the same cooling circulation system, resulting in better heat exchange performance when a single cooling circulation system is activated. The operating state remains unchanged whether either the wet or dry cooling heat dissipation section of the two cooling circulation systems is activated independently. Furthermore, when both cooling circulation systems are activated simultaneously, with both wet and dry cooling heat dissipation sections activated at the same time, the aforementioned alternating arrangement promotes heat balance between the two cooling circulation systems. In summary, this cooling tower system effectively solves the problem of poor heat exchange performance in cooling tower systems.

[0037] In some embodiments, as described above, the order in which the humid cooling heat sink and the dry cooling heat sink are arranged in the air duct is not required. However, further considering that placing the dry cooling heat sink upstream of the humid cooling heat sink would cause the hot air entering the humid cooling heat sink to accelerate the evaporation of liquid in the humid cooling heat sink, thereby increasing the amount of scale and reducing the service life of the humid cooling heat sink. Based on this, it is preferable that the humid cooling heat sink is placed upstream of the dry cooling heat sink. Specifically, in the first air duct 31, the first humid cooling heat sink 11 is located on the air inlet side of the second dry cooling heat sink 22; in the second air duct 32, the second humid cooling heat sink 21 is located on the air inlet side of the first dry cooling heat sink 12. In some cases, the external air entering the humid cooling heat sink will form a highly humid airflow, which will further evaporate in the gas after entering the dry cooling heat sink, carrying away more heat.

[0038] In some embodiments, in any cooling circulation system, the circulating refrigerant or other cooling liquid may first flow into the wet cooling heat dissipation section and then through the dry cooling heat dissipation section, or it may first flow into the dry cooling heat dissipation section and then through the wet cooling heat dissipation section. Of course, in addition to the series connection described above, the dry cooling heat dissipation section and the wet cooling heat dissipation section may also be connected in parallel.

[0039] In some embodiments, preferably, in the circulation path of the first cooling circulation system 1, the refrigerant inlet of the first wet cooling heat dissipation section 11 is connected to the refrigerant outlet of the first dry cooling heat dissipation section 12; and in the circulation path of the second cooling circulation system 2, the refrigerant inlet of the second wet cooling heat dissipation section 21 is connected to the refrigerant outlet of the second dry cooling heat dissipation section 22. This is because the temperature in the wet zone is generally less than or equal to the temperature in the dry zone. Especially when the airflow passes through the wet zone first and then the dry zone, it can better ensure that the temperature in the wet zone is lower than the temperature in the dry zone. Therefore, the refrigerant flows into the dry zone first and then into the wet zone, which can further reduce the temperature.

[0040] In some embodiments, the first cooling cycle system 1 may be a water-cooled cycle system, and the second cooling cycle system 2 may be a mechanical refrigeration cycle system. During the mechanical refrigeration stage, the internal compressor 24 is turned off. When in use, the temperature of the humid zone is lower than that of the dry zone, creating a temperature difference between hot and cold. In addition to the system circulation driven by the pump and / or compressor 24, the temperature difference between hot and cold still plays a role in driving the system circulation.

[0041] In some embodiments, one of the two cooling circulation systems is a water-cooled circulation system, and the other is a mechanical refrigeration circulation system. In use, operating the water-cooled circulation system alone versus operating the mechanical refrigeration circulation system alone will produce different cooling effects, thus allowing for more adjustable cooling levels. When the cooling temperature requirement is relatively low, the water-cooled circulation system can be activated first. With the water-cooled circulation system activated, there are options for operating the wet zone alone, operating the dry zone alone, or operating both the wet and dry zones simultaneously, which can be selected based on the ambient temperature and cooling requirements. When the cooling requirement increases further, the water-cooled circulation system can be shut down and the mechanical refrigeration circulation system activated. Similarly, the mechanical refrigeration circulation system can also be activated, either by operating the wet zone alone, operating the dry zone alone, or operating both the wet and dry zones simultaneously. When the cooling requirement increases even further, both the water-cooled circulation system and the mechanical refrigeration circulation system are activated simultaneously.

[0042] If the first cooling circulation system 1 is a water-cooled circulation system, it includes a first dry heat dissipation section 12, a first wet heat dissipation section 11, a circulation pump 14, and a first heat absorption section 13 connected in sequence, wherein the circulation pump is used to accelerate the fluid flow therein.

[0043] The second cooling cycle system 2 is a mechanical refrigeration cycle system, which includes a second dry cooling heat dissipation section 22, a second wet cooling heat dissipation section 21, a throttling element 25, a second heat absorption section 23 and a compressor 24 connected in sequence.

[0044] In some embodiments, the first heat-absorbing part 13 and the second heat-absorbing part 23 can share an air duct, such as a shared compressor.

[0045] The first heat-absorbing part 13 is positioned closer to the upstream end of the air duct than the second heat-absorbing part 23. When the two cooling circulation systems work together, the first heat-absorbing part 13 absorbs heat in advance, and its own temperature cannot be too low. This method can better achieve comprehensive cooling and effectively reduce the working pressure of the second refrigerant circulation system.

[0046] In some embodiments, the first heat-absorbing part 13 and the second heat-absorbing part 23 can share an air duct and an internal fan 5. This makes the overall structure more compact and reduces manufacturing costs. Because the first cooling circulation system 1 and the second cooling circulation system 2 are used separately in some cases, the first heat-absorbing part 13 and the second heat-absorbing part 23 interfere with each other less, and it is beneficial to obtain a larger air volume and improve heat absorption efficiency.

[0047] In some embodiments, such as Figure 1 As shown, the first heat-absorbing part 13 and the second heat-absorbing part 23 can be accelerated by different fans. That is, multiple internal fans 5 are provided to accelerate the airflow at the first heat-absorbing part 13 and the second heat-absorbing part 23 respectively.

[0048] In some embodiments, such as Figure 2 As shown, the first heat-absorbing part 13 and the second heat-absorbing part 23 are arranged simultaneously to dissipate heat from the heat source. However, in some cases, the space at the heat source is too compact to accommodate too many heat-absorbing parts at the same time. Based on this, it is preferable to include a heat exchange system 6, and the heat dissipation part of the heat exchange system 6 is in thermal contact with both the first heat-absorbing part 13 and the second heat-absorbing part 23. The heat-absorbing part of the heat exchange system 6 is arranged to be 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 part 13 and the second heat-absorbing part 23 and then transferring it to the heat source. This not only facilitates the compact space at the heat source but also ensures uniform heat transfer.

[0049] In some embodiments, the cooling tower 3 includes a first air duct 31 and a second air duct 32 arranged in parallel, with the air inlets of the two air ducts facing away from each other to provide a wider air intake range. For example, the air inlets of the two air ducts are arranged facing away from each other in the horizontal direction, while the air outlets of the two air ducts are arranged side by side and both face upwards.

[0050] 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 equipped with an external fan 4, or both the air inlet of the first air duct 31 and the air inlet of the second air duct 32 may be equipped with an external fan.

[0051] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded 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 includes a first heat absorption section, a first wet cooling heat dissipation section and a first dry cooling heat dissipation section connected in series; The second cooling cycle system includes a second heat absorption section, a second wet cooling heat dissipation section and a second dry cooling heat dissipation section connected in series, wherein the first heat absorption section and the second heat absorption section are used to absorb heat from the same object. In the cooling tower, the first wet cooling heat dissipation section and the second dry cooling heat dissipation section are connected in series in the first air duct, the second wet cooling heat dissipation section and the first dry cooling heat dissipation section are connected in series in the second air duct, and the first air duct and the second air duct are arranged in parallel. In the first air duct, the first wet cooling heat dissipation unit is located on the air inlet side of the second dry cooling heat dissipation unit; in the second air duct, the second wet cooling heat dissipation unit is located on the air inlet side of the first dry cooling heat dissipation unit.

2. The cooling tower system according to claim 1, characterized in that, In the circulation path of the first cooling cycle system, the refrigerant inlet of the first wet cooling heat dissipation unit is connected to the refrigerant outlet of the first dry cooling heat dissipation unit; in the circulation path of the second cooling cycle system, the refrigerant inlet of the second wet cooling heat dissipation unit is connected to the refrigerant outlet of the second dry cooling heat dissipation unit.

3. The cooling tower system according to claim 2, characterized in that, The first cooling cycle system is a water-cooled cycle system, and the second cooling cycle system is a mechanical refrigeration cycle system.

4. The cooling tower system according to claim 3, characterized in that, The first heat-absorbing part is positioned closer to the upstream of the air duct than the second heat-absorbing part.

5. The cooling tower system according to any one of claims 1-4, characterized in that, The first heat-absorbing part and the second heat-absorbing part share the same air duct.

6. The cooling tower system according to any one of claims 1-3, 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 set to be close to the heat source.

7. The cooling tower system according to any one of claims 1-3, characterized in that, The first heat-absorbing part and the second heat-absorbing part use different fans to accelerate the airflow.

8. The cooling tower system according to any one of claims 1-3, characterized in that, The air inlets of the first air duct and the second air duct are positioned opposite each other.

9. The cooling tower system according to any one of claims 1-3, characterized in that, Both the air outlet of the first air duct and the air outlet of the second air duct are equipped with fans.

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