Cooling tower system

Abstract

A cooling tower system, comprising: a first cooling circulation system, the first cooling circulation system comprising a first heat dissipation part and a first heat absorption part communicated with each other; a second cooling circulation system, the second cooling circulation system comprising a second heat dissipation part and a second heat absorption part communicated with each other, and the first heat absorption part and the second heat absorption part being used for absorbing heat of the same object; and a cooling tower, the first heat dissipation part and the second heat dissipation part being both arranged on the cooling tower and sharing a cooling air duct, at least one first heat dissipation part being a wet-cooling heat dissipation part, and at least one second heat dissipation part being a dry-cooling heat dissipation part. Sharing the air duct facilitates a compact structure, and enables a single device to obtain a larger air volume, so as to avoid heat concentration, accordingly separately achieving better heat dissipation effects. Even if the two are used at the same time, because the mutual interference influence of dry cooling and wet cooling is very small, sharing the air duct can better ensure the air volume on the contrary. Therefore, the plurality of cooling circulation systems in the cooling tower system can better coordinate to work.

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 202310782009.1 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] Existing cooling tower systems usually use a single medium cooling structure within the same volume space; that is, if it is a system with both a water circulation loop and a refrigerant circulation loop, or other multiple systems working together, their spatial layout is an independent separate structure. The advantage is that the layout is simple and easy to operate and install. However, with the increasing requirements for space utilization and performance and cost, there is currently no better solution to achieve high heat exchange in a small space while ensuring a certain level of high performance.

[0004] In summary, how to effectively solve the problem of poor coordination of multiple systems in the cooling tower system is an issue 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 coordination effect of multiple systems in 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] a first cooling circulation system, the first cooling circulation system comprising at least a first heat dissipating portion and a first heat absorbing portion communicated with each other;

[0010] a second cooling circulation system, the second cooling circulation system comprising at least a second heat dissipating portion and a second heat absorbing portion communicated with each other, the first heat absorbing portion and the second heat absorbing portion being used to absorb heat from the same object;

[0011] The first heat dissipation part and the second heat dissipation part are both arranged in the cooling tower and share a cooling air duct. At least one of the first heat dissipation parts is a wet cooling heat dissipation part, and at least one of the second heat dissipation parts is a dry cooling heat dissipation part.

[0012] In the above-mentioned cooling tower system, after multiple cooling circulation systems are set up and the cooling tower has a dry state area and a wet state area, one cooling circulation system can perform dry cooling and one cooling circulation system can perform wet cooling. Dry cooling and wet cooling can be used for different environmental conditions respectively. Dry cooling has a better cooling effect when the ambient temperature is relatively low, while wet cooling has a better cooling effect when the ambient temperature is relatively high. Of course, the dry cooling circulation system and the wet cooling circulation system can also be used differently due to different conditions. Therefore, when sharing an air duct, there are some cases where they are staggered. In particular, in some environments, they are staggered in most cases, so they do not interfere with each other. However, sharing an air duct is conducive to a compact structure, and a single device can obtain a larger air volume to avoid heat concentration, thereby achieving better heat dissipation effect. Even if the two are used at the same time, the interference between dry cooling and wet cooling is very small, especially the shared air duct can better ensure the air volume. Therefore, the multiple cooling circulation systems in the cooling tower system can work in a better coordinated manner. In summary, the cooling tower system can effectively solve the problem of poor coordination effect of multiple systems in the cooling tower system.

[0013] In some technical solutions, the heat exchange efficiency of the refrigerant in the first cooling circulation system is lower than the heat exchange efficiency of the refrigerant in the second cooling circulation system.

[0014] In some technical solutions, the first cooling circulation system is a water cooling circulation system, and the second cooling circulation system is a mechanical refrigeration system.

[0015] In some technical solutions, the heat exchange structure density of the first heat dissipation part is smaller than the heat exchange structure density of the second heat dissipation part.

[0016] In some technical solutions, the first heat absorption part and the second heat absorption part share an air duct.

[0017] In some technical solutions, the first heat absorption part is arranged closer to the upstream of the air duct than the second heat absorption part.

[0018] In some technical solutions, a heat exchange system is further included, wherein the heat dissipation part of the heat exchange system is in thermal contact with 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] In some technical solutions, the heat exchange system is a water cooling system.

[0020] In some technical solutions, the first heat absorbing part and the second heat absorbing part accelerate the circulation of air through different fans.

[0021] In some technical solutions, the cooling tower includes two cooling air ducts arranged in parallel, and the air inlets of the two cooling air ducts are arranged in opposite directions. The two first heat dissipation parts of the first cooling circulation system are respectively arranged at the air inlets of the two cooling air ducts, and the two second heat dissipation parts of the second cooling circulation system are respectively arranged in the two cooling air ducts. 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 paying 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] FIG3 is a schematic structural diagram of another cooling tower system provided by an embodiment of the present invention.

[0026] 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 heat dissipation part 11, first heat absorption part 12, circulation pump 13; second heat dissipation part 21, second heat absorption part 22, compressor 23, throttling element 24; cooling air duct 31. DETAILED DESCRIPTION

[0027] The embodiment of the present invention discloses a cooling tower system, which effectively solves the problem of poor coordination effect of multiple systems in the cooling tower system.

[0028] 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.

[0029] Please refer to Figures 1-3, Figure 1 is a structural schematic diagram of a cooling tower system provided in an embodiment of the present invention; Figure 2 is a structural schematic diagram of another cooling tower system provided in an embodiment of the present invention; Figure 3 is a structural schematic diagram of another cooling tower system provided in an embodiment of the present invention.

[0030] In some embodiments, this embodiment provides a cooling tower system, which includes a first cooling circulation system 1 , a second cooling circulation system 2 and a cooling tower 3 .

[0031] 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.

[0032] Specifically, for ease of description, the first cooling cycle system 1 includes a first heat sink 11 and a first heat sink 12, which are interconnected. The second cooling cycle system 2 includes a second heat sink 21 and a second heat sink 22, which are interconnected. The first heat sink 12 and the second heat sink 22 are used to absorb heat from the same object and can be located in the same or different locations, but they absorb heat from the same object. That is, at least the heat sinks of the respective objects overlap, so that they function identically for some of the heat sinks.

[0033] The first heat sink 11 and the second heat sink 21 are both located in the cooling tower 3 and share a cooling duct 31, thereby sharing a common external fan 4. The duct of the first heat sink 11 and the duct with the second heat sink 21 can be arranged in parallel, or they can be arranged in series to form the cooling duct 31. For example, a series arrangement would have one of the first heat sink 11 and the second heat sink 21 located upstream of the cooling duct 31, while the other located downstream. When multiple first heat sinks 11 and / or multiple second heat sinks 21 are provided, the first heat sink 11 and the second heat sink 21 can be arranged crosswise in the direction in which the cooling duct 31 extends.

[0034] At least one first heat dissipation part 11 is a wet cooling heat dissipation part, and at least one second heat dissipation part 21 is a dry cooling heat dissipation part, so that the wind in the cooling tower 3 can flow through the dry cooling heat dissipation part after flowing through the wet cooling heat dissipation part, or it can flow through the dry cooling heat dissipation part first and then through the wet cooling heat dissipation part. The dry cooling heat dissipation part mainly absorbs heat through low-temperature wind and then discharges it to cool down, while the wet cooling heat dissipation part mainly absorbs heat through spraying water evaporation and then carries it out through the wind body. Therefore, the wind body passes through wet cooling and then dry cooling, or passes through dry cooling and then wet cooling, and there will be no significant impact on each other, especially passing through wet cooling first and then dry cooling.

[0035] In the above-mentioned cooling tower system, after a plurality of cooling circulation systems are provided, and the cooling tower 3 is provided with a dry state area and a wet state area, one cooling circulation system can perform dry cooling, and one cooling circulation system can perform wet cooling. Dry cooling and wet cooling can be used for different environmental conditions respectively. When the ambient temperature is relatively low, the cooling effect is better, while when the ambient temperature is relatively high, wet cooling is performed for cooling, which is more effective. Of course, the dry cooling circulation system and the wet cooling circulation system can also be used differently due to different conditions. Therefore, when sharing an air duct, there are some cases where they are staggered for use. In particular, in some environments, in most cases, they are staggered for use, so they do not interfere with each other. However, sharing an air duct is conducive to a compact structure, and a single device can obtain a larger air volume, so as to avoid heat concentration, thereby achieving a better heat dissipation effect. Even if the two are used simultaneously, since the interference between dry cooling and wet cooling is very small, the shared air duct can better ensure the air volume. Therefore, the multiple cooling circulation systems in the cooling tower system can better coordinate their work. In summary, the cooling tower system can effectively solve the problem of poor coordination effect of the multiple systems of the cooling tower system.

[0036] In some embodiments, the heat exchange efficiency of the refrigerant in the first cooling circulation system 1 can be made lower than the heat exchange efficiency of the refrigerant in the second cooling circulation system 2. When the heat exchange demand is low, the first cooling circulation system 1 can be turned on first to perform wet cooling, and the second cooling circulation system 2 can be turned off; when the heat exchange demand increases, the second cooling circulation system 2 can be turned on, and then the first cooling circulation system 1 can be turned off, so that dry cooling can be used when the heat exchange demand is high. This can effectively reduce the evaporation caused by wet cooling, and thus effectively reduce the amount of scaling to increase the service life. Of course, when the heat exchange demand is lower, the first cooling circulation system 1 can also be turned off, and the second cooling circulation system 2 can be turned on, and the low power consumption function of the second cooling circulation system 2 can be used. For the wet cooling first cooling circulation system 1, when the heat exchange demand is lower, the first heat dissipation part 11 can also dissipate heat by water cooling, and it is not necessary to dissipate heat by evaporation.

[0037] 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 system, which can better reduce the amount of scaling of the first heat dissipation part 11.

[0038] In some embodiments, both the first cooling system 1 and the second cooling system 2 can be mechanical refrigeration systems, with either the same or different heat exchange capacities. During operation, when heat demand is low, the first cooling system 1 can be activated, while the second cooling system 2 is deactivated. When demand increases, the second cooling system 2 can be activated, while the first cooling system 1 is deactivated. This approach also reduces scaling.

[0039] In some embodiments, the first cooling circulation system 1, such as a water cooling circulation system, may specifically include a circulation pump 13, a first heat dissipating part 11 and a first heat absorbing part 12 connected in sequence, and the circulation pump 13 is used to accelerate the flow of internal fluid.

[0040] In some embodiments, the second cooling cycle system 2 may include a compressor 23, a second heat dissipating portion 21, a throttling element 24, and a second heat absorbing portion 22 that are connected in sequence.

[0041] In some embodiments, the heat exchange structure density of the first heat dissipation part 11 is smaller than the heat exchange structure density of the second heat dissipation part 21. The wet zone needs to consider the water flow from the pipes, so the gap is too small to easily form a blockage. The dry zone does not have this problem, so a method with higher heat exchange density can be adopted.

[0042] In some embodiments, the first heat absorption section 12 and the second heat absorption section 22 can share a common air duct, thereby sharing the internal fan 5, making the overall structure more compact and reducing manufacturing costs. With the shared internal fan 5, the air ducts of the first heat absorption section 12 and the second heat absorption section 22 can be arranged in series or in parallel. Because the first cooling cycle 1 and the second cooling cycle 2 are sometimes used alternately, interference between the first heat absorption section 12 and the second heat absorption section 22 is minimized, thereby achieving a larger air volume and improving heat absorption efficiency.

[0043] In some embodiments, the first heat absorption part 12 can be located upstream of the air duct compared to the second heat absorption part 22, so that the wind first passes through the first heat absorption part 12 to absorb heat and lower the temperature, and then passes through the second heat absorption part 22 to absorb heat to further lower the temperature, which is conducive to rapid cooling and effectively reduces the working pressure of the second refrigerant circulation system.

[0044] In some embodiments, of course, the first heat absorbing portion 12 and the second heat absorbing portion 22 can each use an air duct without interfering with each other, so as to achieve better effects when used simultaneously.

[0045] In some embodiments, it is considered that the first heat absorbing part 12 and the second heat absorbing part 22 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 impossible to accommodate too many heat absorbing parts at the same time. Based on this, it is preferred that a heat exchange system 6 is also provided, and the heat dissipation part of the heat exchange system 6 is in thermal contact with both the first heat absorbing part 12 and the second heat absorbing part 22. The heat absorbing part of the heat exchange system 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 part 12 and the second heat absorbing part 22 and then transferring it to the heat source. This not only facilitates the compact location of the heat source, but also uniformly transfers heat.

[0046] In some embodiments, the heat exchange system 6 can be a water cooling system to facilitate heat transfer. Of course, the heat exchange system 6 can also be a general heat conductor.

[0047] In some embodiments, the cooling tower 3 includes two cooling air ducts 31 arranged in parallel, and the air inlets of the two cooling air ducts 31 are arranged in opposite directions so as to have a wider air inlet range. Specifically, the two first heat dissipating parts 11 of the first cooling circulation system 1 can be respectively arranged at the air inlets of the two cooling air ducts 31, and the two second heat dissipating parts 21 of the second cooling circulation system 2 can be respectively arranged in the two cooling air ducts 31; wherein, the first cooling circulation system 1 can be provided with two first heat dissipating parts 11, and the two first heat dissipating parts 11 can be connected in series or in parallel and then connected to the first heat absorbing part 12, wherein, preferably, the two first heat dissipating parts 11 are connected in parallel, and the two parallel first heat dissipating parts 11 can dissipate heat to different parts of the heat dissipation object at the same time, and the heat dissipation consistency is good; similarly, the second cooling circulation system 2 can also be provided with two second heat dissipating parts 21, and the two second heat dissipating parts 21 can be connected in series or in parallel and then connected to the second heat absorbing part 22, wherein, preferably, the two second heat dissipating parts 21 are connected in parallel, and the two parallel second heat dissipating parts 21 can dissipate heat to different parts of the heat dissipation object at the same time, and the heat dissipation consistency is good.

[0048] 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.

[0049] 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: A first cooling circulation system, the first cooling circulation system comprising at least a first heat dissipating part and a first heat absorbing part which are connected to each other; A second cooling circulation system, the second cooling circulation system comprises at least a second heat dissipating part and a second heat absorbing part which are connected to each other, the first heat absorbing part and the second heat absorbing part are used to absorb heat from the same object; A cooling tower, wherein the first heat dissipation part and the second heat dissipation part are both arranged in the cooling tower and share a cooling air duct, at least one of the first heat dissipation parts is a wet cooling heat dissipation part, and at least one of the second heat dissipation parts is a dry cooling heat dissipation part.

2. The cooling tower system according to claim 1, characterized in that: The heat exchange efficiency of the refrigerant in the first cooling circulation system is lower than the heat exchange efficiency of the refrigerant in the second cooling circulation system.

3. The cooling tower system according to claim 1, characterized in that: The first cooling circulation system is a water cooling circulation system, and the second cooling circulation system is a mechanical refrigeration system.

4. The cooling tower system according to claim 3, characterized in that: The heat exchange structure density of the first heat dissipation part is smaller than the heat exchange structure density of the second heat dissipation part.

5. The cooling tower system according to any one of claims 3 to 4, characterized in that: The first heat absorbing part and the second heat absorbing part are arranged in a common air duct.

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

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 claim 7, characterized in that: The heat exchange system is a water cooling system.

9. 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.

10. The cooling tower system according to any one of claims 1 to 4, characterized in that: The cooling tower includes two cooling air ducts arranged in parallel, and the air inlets of the two cooling air ducts are arranged opposite to each other. The two first heat dissipation parts of the first cooling circulation system are respectively arranged at the air inlets of the two cooling air ducts, and the two second heat dissipation parts of the second cooling circulation system are respectively arranged in the two cooling air ducts.