CN114838598A

CN114838598A - Closed cooling tower, control method, system, device and storage medium

Info

Publication number: CN114838598A
Application number: CN202210482764.3A
Authority: CN
Inventors: 张飞; 贺晓; 程序; 李红霞; 魏文豪; 张琪; 吴帅; 胡孝俊
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-02

Abstract

The application provides a closed cooling tower, a control method, a system, a device and a storage medium, which relate to the field of heating and ventilation and can improve the cooling effect of the closed cooling tower. The closed cooling tower is used for cooling water circulation pipeline, the closed cooling tower includes an air cooling module and a pre-cooling module; the water circulation pipeline includes a cooling pipeline located in the closed cooling tower; the air cooling module includes an air inlet and an air induction device, and the air inlet Located on the shell of the fluid cooling tower; the air cooling module is used to introduce the air outside the fluid cooling tower into the fluid cooling tower through the induced draft device, the air inlet and the precooling module to cool the cooling pipes; the precooling module It is used to cool the air introduced into the closed cooling tower in the process of introducing the air outside the closed cooling tower into the closed cooling tower by the air cooling module.

Description

Closed cooling tower, control method, system, device and storage medium

Technical Field

The present application relates to the field of heating and ventilation, and in particular, to a closed cooling tower, a control method, an apparatus, and a computer-readable storage medium.

Background

The closed cooling tower is a device for cooling water (also called inlet water) entering the closed cooling tower so that the temperature of the water (also called outlet water) leaving the closed cooling tower is lower than the temperature of the inlet water.

The temperature of the water discharged from the closed cooling tower is related to the temperature of the air outside the closed cooling tower, and the temperature of the water discharged from the closed cooling tower is 3-5 ℃ higher than the temperature of the air outside the closed cooling tower in general. Therefore, when the temperature of the air outside the closed cooling tower is not changed, if the required temperature of the discharged water is lower than or equal to the temperature of the air outside the closed cooling tower, the temperature of the discharged water of the closed cooling tower cannot meet the temperature requirement, and the cooling effect of the existing closed cooling tower is poor.

Disclosure of Invention

The application provides a closed cooling tower, a control method, a control system, a control device and a storage medium, which can improve the cooling effect of the closed cooling tower.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a closed cooling tower for cooling a water circulation pipeline, the closed cooling tower comprising an air cooling module and a pre-cooling module; the water circulation pipeline comprises a cooling pipeline positioned in the closed cooling tower; the air cooling module comprises an air inlet and an air inducing device, and the air inlet is positioned on a shell of the closed cooling tower; the air cooling module is used for introducing air outside the closed cooling tower into the closed cooling tower through the air inducing device, the air inlet and the pre-cooling module so as to cool the cooling pipeline; the pre-cooling module is used for cooling the air introduced into the closed cooling tower in the process that the air cooling module introduces the air outside the closed cooling tower into the closed cooling tower.

Based on this scheme, when the air temperature outside the closed cooling tower is unchangeable, if the requirement temperature of play water is less than or equal to the air temperature outside the closed cooling tower, the precooling module among the closed cooling tower that this application provided can carry out cooling treatment to the air that introduces the closed cooling tower, makes the temperature that carries out refrigerated air to cooling tube reduce to the temperature that makes the play water after the air-cooled module cooling is less than or equal to the air temperature outside the closed cooling tower, has improved the cooling effect of closed cooling tower.

In one possible design, the pre-cooling module includes a pre-cooling coil; the precooling coil is positioned at the position of the air inlet on the inner side of the shell; the pre-cooling coil is internally provided with flowing cooling liquid and is used for cooling air flowing through the air inlet through the flowing cooling liquid.

Based on the scheme, the pre-cooling coil in the pre-cooling module is arranged at the position of the air inlet on the inner side of the shell, and flowing cooling liquid is arranged in the pre-cooling coil, so that the temperature of air flowing through the air inlet can be reduced.

In one possible design, the pre-cooling module further comprises a pre-cooling spray head when the flowing cooling liquid is water; the pre-cooling spray head is positioned at the bottom of the topmost coil pipe of the pre-cooling coil pipe; the pre-cooling spray head is used for spraying water downwards so as to cool the air flowing through the air inlet.

Based on the scheme, the precooling spray heads in the precooling module are arranged at the bottom of the topmost coil of the precooling coil, and water can be sprayed downwards by the precooling spray heads, so that the temperature of air flowing through the air inlet can be reduced.

In one possible design, in the case where the flowing coolant is water, the pre-cooling module includes: a water accumulation plate and a water pump; the water accumulation plate is positioned at the bottom of the closed cooling tower; the water accumulation disc is used for collecting water in the closed cooling tower; the water pump is used for guiding water in the water collecting disc to the pre-cooling coil pipe.

Based on this scheme, under the condition that the coolant liquid that flows is water, the water in the closed cooling tower is collected to the ponding dish, makes the water in the closed cooling tower can cyclic utilization, has saved the water resource, and simultaneously, the water pump leads to the precooling coil with the water in the ponding dish, can realize making the precooling coil carry out cooling treatment to the air of flowing through the air intake to and the realization makes water carry out cooling treatment through the air of precooling shower nozzle convection current through the air of air intake.

In a second aspect, the present application provides a cooling system, comprising a refrigeration module, a water circulation pipeline, and the closed cooling tower of the first aspect; the closed cooling tower comprises an air cooling module and a precooling module; the water circulation pipeline comprises a cooling pipeline positioned in the closed cooling tower and a water outlet pipeline positioned outside the closed cooling tower; the air cooling module comprises an air inlet and an air inducing device, wherein the air inlet is positioned on a shell of the closed cooling tower; the air cooling module is used for introducing air outside the closed cooling tower into the closed cooling tower through the air inducing device, the air inlet and the pre-cooling module so as to cool the cooling pipeline; the pre-cooling module is used for cooling the air introduced into the closed cooling tower in the process that the air cooling module introduces the air outside the closed cooling tower into the closed cooling tower; the refrigeration module is used for cooling the water outlet pipeline.

Based on this scheme, when the air temperature outside the closed cooling tower is unchangeable, if the requirement temperature of play water is less than or equal to the air temperature outside the closed cooling tower, the precooling module among the cooling system that this application provided can carry out cooling treatment to the air that introduces the closed cooling tower, the messenger carries out the temperature of refrigerated air to cooling tube and reduces, the module of refrigerating simultaneously carries out cooling treatment to outlet conduit here to the temperature of play water is less than or equal to the air temperature outside the closed cooling tower in making outlet conduit, the cooling effect of closed cooling tower has been improved.

In one possible design, the refrigeration module comprises an evaporation pipe, a condensation pipe, a compressor and a throttling device; the compressor is respectively connected with the evaporation pipeline and the condensation pipeline; the throttling device is respectively connected with the evaporation pipeline and the condensation pipeline; the compressor is used for conveying a high-temperature and high-pressure gas refrigerant to the condensation pipeline; the condensing pipeline is used for cooling the received high-temperature high-pressure gas refrigerant to obtain a low-temperature high-pressure liquid refrigerant, and conveying the low-temperature high-pressure liquid refrigerant to the throttling device; the throttling device is used for decompressing the low-temperature high-pressure liquid refrigerant after receiving the low-temperature high-pressure liquid refrigerant to obtain the low-temperature low-pressure liquid refrigerant and transmitting the low-temperature low-pressure liquid refrigerant to the evaporation pipeline; the evaporation pipeline is used for cooling the water outlet pipeline through a low-temperature low-pressure liquid refrigerant to obtain a low-temperature low-pressure gas refrigerant, and conveying the low-temperature low-pressure gas refrigerant to the compressor; the compressor is also used for compressing the low-temperature low-pressure gas refrigerant to obtain the high-temperature high-pressure gas refrigerant.

Based on this scheme, the refrigeration module can realize the cooling treatment to outlet conduit through evaporating pipe.

In one possible design, the refrigeration module further comprises a heat exchanger; the water outlet pipeline and the evaporation pipeline respectively penetrate through the heat exchanger; the evaporation pipeline is used for cooling the water outlet pipeline in the heat exchanger through a low-temperature low-pressure liquid refrigerant.

Based on this scheme, evaporating pipe and outlet conduit carry out the heat transfer at the heat exchanger to make the outlet conduit cooling, because the heat exchanger can keep apart evaporating pipe and outlet conduit and external air, avoided evaporating pipe to carry out meaningless cooling to external air, avoid outlet conduit to absorb external heat simultaneously, improved the cooling efficiency of refrigeration module to outlet conduit.

In one possible design, the part of the water outlet pipeline, which is positioned in the heat exchanger, is a first branch pipeline, and the water outlet pipeline further comprises a second branch pipeline which is connected with the first branch pipeline in parallel; the second branch pipeline is positioned outside the heat exchanger; and a three-way valve is arranged at the parallel connection position of the first branch pipeline and the second branch pipeline.

Based on this scheme, because first tributary pipeline passes through the three way valve and is parallelly connected with second tributary pipeline, can make the play water in the outlet conduit flow through the second tributary pipeline that is located outside the heat exchanger when not needing the cooling module to the outlet conduit cooling, when needing the cooling module to the outlet conduit cooling, make the play water in the outlet conduit flow through the first tributary pipeline that is located in the heat exchanger, improved cooling system's flexibility.

In one possible design, the air cooling module further comprises an air outlet, and the air outlet is positioned on the shell; the condensing pipe is positioned at the air outlet on the inner side of the shell.

Based on this scheme, because the condensation duct is located the position of the inboard air outlet of casing, because can cool off the condensation duct in the casing of closed cooling tower, thus can improve the condensation effect of condensation duct. And meanwhile, the condensing pipeline is positioned at the air outlet, the air in the closed cooling tower can firstly carry out cooling treatment on the cooling pipeline and then carry out cooling treatment on the condensing pipeline, and the efficiency of the closed cooling tower for carrying out cooling treatment on the cooling pipeline is prevented from being reduced.

In a third aspect, the present application provides a control method for a cooling system, which is applied to the cooling system of the second aspect, and the method includes: acquiring the air temperature outside the closed cooling tower and the required temperature of effluent; and if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value, starting the precooling module or starting the precooling module and the refrigerating module.

Based on the scheme, when the temperature of the air outside the closed cooling tower is unchanged, if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value, the precooling module is started or the precooling module and the refrigerating module are started. On the one hand, the cooling effect of the closed cooling tower can be improved, on the other hand, the situation that the precooling module and the refrigerating module are opened all the time can be avoided, the energy consumption is further caused, and the energy conservation performance of the cooling system is improved.

With reference to the third aspect, in some embodiments of the third aspect, if the difference between the air temperature and the required temperature of the discharged water is greater than the first threshold, turning on the pre-cooling module or turning on the pre-cooling module and the refrigeration module includes: if the difference value is larger than the first threshold and smaller than a second threshold, starting the precooling module, wherein the second threshold is larger than the first threshold; and if the difference value is larger than a second threshold value, starting the precooling module and the refrigerating module.

Based on the scheme, when the temperature of the air outside the closed cooling tower is unchanged, the precooling module is started or the precooling module and the refrigerating module are started according to the relation between the difference value of the air temperature and the required temperature of the discharged water and the first threshold value and the second threshold value. On the one hand, the cooling effect of the closed cooling tower can be improved through the pre-cooling module and/or the refrigerating module, on the other hand, the situation that the pre-cooling module and/or the refrigerating module are/is opened all the time can be avoided, energy consumption is further caused, and the energy saving performance of the cooling system is improved.

In a fourth aspect, the present application provides a control device for a cooling system, for controlling the cooling system of the second aspect, the device comprising: an acquisition module and a processing module; the acquisition module is used for acquiring the air temperature outside the closed cooling tower and the required temperature of the effluent; and the processing module is used for starting the precooling module or starting the precooling module and the refrigerating module if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value.

With reference to the fourth aspect, in some embodiments of the fourth aspect, the processing module is specifically configured to: if the difference value is larger than the first threshold and smaller than the second threshold, starting the precooling module, wherein the value is larger than the first threshold; if the difference value is larger than a second threshold value, starting the precooling module and the refrigerating module;

in a fifth aspect, there is provided a control device of a cooling system, including: at least one processor, a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the control method as provided by the first aspect and any one of its possible design forms.

A sixth aspect provides a computer-readable storage medium having instructions which, when executed by a processor of a control apparatus, enable the control apparatus to perform the control method as provided in the first aspect and any one of its possible designs.

In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect.

In an eighth aspect, a chip system is provided, which includes: a processor and an interface circuit; an interface circuit for receiving a computer program or instructions and transmitting the same to a processor; the processor is adapted to execute a computer program or instructions to cause the system-on-chip to perform the method according to the first aspect as described above.

For technical effects brought by any one of the design manners in the fourth aspect to the eighth aspect, reference may be made to technical effects brought by different design manners in the third aspect, and details are not repeated herein.

Drawings

FIG. 1 is a schematic structural diagram of a closed cooling tower provided herein;

fig. 2 is a schematic structural diagram of a pre-cooling module provided in the present application;

fig. 3 is a schematic structural diagram of another pre-cooling module provided in the present application;

fig. 4 is a schematic structural diagram of another pre-cooling module provided in the present application;

FIG. 5 is a schematic diagram of a cooling system according to the present application;

FIG. 6 is a schematic structural view of a refrigeration module provided herein;

FIG. 7 is a schematic structural view of yet another refrigeration module provided herein;

FIG. 8 is a schematic structural view of yet another refrigeration module provided herein;

FIG. 9a is a schematic structural diagram of yet another cooling system provided herein;

FIG. 9b is a top view of a cooling system according to the present application;

FIG. 10 is a schematic structural diagram of a control system provided herein;

FIG. 11 is a schematic flow chart illustrating a method of controlling a cooling system according to the present disclosure;

FIG. 12 is a schematic flow chart of yet another control method provided herein;

fig. 13 is a schematic structural diagram of a control device provided in the present application;

fig. 14 is a schematic structural diagram of another control device provided in the present application.

Detailed Description

In the description of the present application, "plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

Also, in the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic of the processes, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It is to be understood that, in the present application, "when …", "if" and "if" all refer to the corresponding processing under certain objective conditions, and are not time-limited, and do not require action that necessarily requires judgment when implemented, nor do they imply that there are other limitations.

It is understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, such as a currently-based solution, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

In this application, the same or similar parts between the respective embodiments may be referred to each other unless otherwise specified. In the embodiments and implementation methods in the embodiments in the present application, unless otherwise specified or conflicting in logic, terms and/or descriptions between different embodiments and implementation methods in the embodiments have consistency and can be mutually cited, and technical features in different embodiments and implementation methods in the embodiments can be combined to form a new embodiment, implementation mode, implementation method or implementation method according to the inherent logic relationship. The following embodiments of the present application do not limit the scope of the present application.

The application provides a closed cooling tower, which is applied to a cooling system and used for cooling a water circulation pipeline, fig. 1 is a schematic structural diagram of the closed cooling tower provided by the application, and as shown in fig. 1, a closed cooling tower 10 includes an air cooling module 101 and a precooling module 102; the water circulation pipe 20 includes a cooling pipe 201 in the closed cooling tower 10; the air cooling module 101 comprises an air inlet 1011 and an air inducing device 1012, wherein the air inlet 1011 is positioned on the shell 103 of the closed cooling tower 10.

The air cooling module 101 is configured to introduce air outside the closed cooling tower 10 into the closed cooling tower 10 through an air inducing device 1012, an air inlet 1011 and the pre-cooling module 102 to cool the cooling pipeline 201; the pre-cooling module 102 is configured to perform cooling processing on the air introduced into the closed cooling tower 10 in a process that the air cooling module 101 introduces the air outside the closed cooling tower 10 into the closed cooling tower 10.

It should be noted that the air inducing device 1012 may be an exhaust fan, or may be a blower. When the air inducing device 1012 is a suction fan, the air inducing device 1012 may be disposed at a top position (a position shown in fig. 1) of the housing 103, and when the air inducing device 1012 is a blower, the air inducing device 1012 may be disposed outside the housing 103 at a position of the air inlet 1011, which is not limited in this application.

The structure of the cooling pipe 201 may be a coil structure, such as a circular coil or a rectangular coil, which is not limited in this application.

When the closed cooling tower 10 cools the cooling pipeline 201, the temperature of the liquid in the cooling pipeline 201 is also reduced.

In one design, fig. 2 is a schematic structural diagram of a pre-cooling module provided herein, and as shown in fig. 2, the pre-cooling module 102 includes a pre-cooling coil 1021; the pre-cooling coil 1021 is positioned at the position of the air inlet 1011 inside the shell 103; a flowing coolant is disposed inside the pre-cooling coil 1021.

The pre-cooling coil 1021 is used for cooling the air flowing through the air inlet 1011 by the flowing cooling liquid.

It should be noted that the structure of the pre-cooling coil 1021 may be a circular coil structure (not shown in fig. 2), or the structure of the pre-cooling module 1021 may be a transversely-arranged coil structure as shown in fig. 2, or the structure of the pre-cooling coil 1021 may be a longitudinally-arranged coil structure (not shown in fig. 2), which is not limited in this application.

The cooling fluid may be water or may be an oil-based fluid, which is not limited in this application.

In one design, fig. 3 is a schematic structural diagram of another pre-cooling module provided in the present application, and as shown in fig. 3, in the case that the flowing cooling liquid is water, pre-cooling module 102 further includes a pre-cooling spray head 1022; pre-cooling spray heads 1022 are located at the bottom of the topmost coil of pre-cooling coils 1021.

The pre-cooling spray nozzle 1022 is used to spray water downward to cool the air flowing through the air inlet 1011.

It should be noted that the width of the water sprayed from the pre-cooling spray heads 1022 is the width of the air inlet 1011, and the number of the pre-cooling spray heads 1022 may be one or more. When the number of pre-cooling spray heads 1022 is one, pre-cooling spray heads 1022 may be located at the center of the bottom of the topmost coil of pre-cooling coil 1021, and when the number of pre-cooling spray heads 1022 is multiple, multiple pre-cooling spray heads 1022 may be uniformly disposed at the bottom of the topmost coil of pre-cooling coil 1021, which is not limited in this application.

In the case where the configuration of pre-cooling coil 1021 is a circular coil configuration (not shown in fig. 2), pre-cooling spray nozzles 1022 are located at the bottom of the uppermost portion of the outermost coil of pre-cooling coil 1021.

In the case where the structure of the pre-cooling coil 1021 is a transversely arranged coil structure as shown in fig. 2, the pre-cooling spray nozzles 1022 are located at the bottom of the highest coil of the pre-cooling coil 1021.

In the case where the structure of the pre-cooling coil 1021 is a longitudinally arranged coil structure (not shown in fig. 2), the pre-cooling spray head 1022 is located at the bottom of the bent portion of the top of the pre-cooling coil 1021.

In one design, fig. 4 is a schematic structural diagram of another pre-cooling module provided in the present application, and as shown in fig. 4, in the case that the flowing cooling liquid is water, the pre-cooling module 102 further includes: a water accumulation plate 1023 and a water pump 1024; the water collection pan 1023 is located at the bottom of the closed cooling tower 10.

Wherein, the water accumulation plate 1023 is used for collecting water in the closed cooling tower 10; a water pump 1024 is used to direct water from the water accumulation plate 1023 to the pre-cooling coil 1021.

It should be noted that the type of the water pump 1024 may be a variable frequency water pump, a positive displacement pump, or a centrifugal pump, which is not limited in this application.

The water sprayed from the pre-cooling spray nozzles 1022 falls under gravity into the water accumulation plate 1023 located at the bottom of the closed cooling tower 10.

Fig. 5 is a schematic structural diagram of the cooling system provided in the present application, and as shown in fig. 5, the cooling system 50 includes a refrigeration module 30, a water circulation pipe 20, and a closed cooling tower 10; the closed cooling tower 10 comprises an air cooling module 101 and a precooling module 102; the water circulation pipeline 20 comprises a cooling pipeline 201 positioned in the closed cooling tower 10 and a water outlet pipeline 202 positioned outside the closed cooling tower 10; the air cooling module 101 comprises an air inlet 1011 and an air inducing device 1012, wherein the air inlet 1011 is positioned on the shell 103 of the closed cooling tower 10.

The air cooling module 101 is configured to introduce air outside the closed cooling tower 10 into the closed cooling tower 10 through an air inducing device 1012, an air inlet 1011 and the pre-cooling module 102 to cool the cooling pipeline 201; the pre-cooling module 102 is configured to perform cooling processing on air introduced into the closed cooling tower 10 in a process that the air cooling module 101 introduces air outside the closed cooling tower 10 into the closed cooling tower 10; the refrigeration module 20 is used for cooling the outlet pipe 202.

For a detailed description of the water circulation pipeline 20 and the closed cooling tower 10, reference may be made to the above description of the closed cooling tower 10, and the detailed description thereof is omitted here.

The operation of the refrigeration module 30 may be mechanical refrigeration.

In one design, fig. 6 is a schematic structural diagram of a refrigeration module provided herein, and as shown in fig. 6, the refrigeration module 30 includes an evaporation pipe 301, a condensation pipe 302, a compressor 303, and a throttling device 304; the compressor 303 is respectively connected with the evaporation pipeline 301 and the condensation pipeline 302; the throttling means 304 are connected to the evaporation pipe 301 and the condensation pipe 302, respectively.

The compressor 303 is configured to deliver a high-temperature and high-pressure gas refrigerant to the condensation duct 302; the condensing pipe 302 is configured to perform cooling processing on a received high-temperature and high-pressure gas refrigerant to obtain a low-temperature and high-pressure liquid refrigerant, and transmit the low-temperature and high-pressure liquid refrigerant to the throttling device 304; the throttling device 304 is configured to decompress the low-temperature high-pressure liquid refrigerant after receiving the low-temperature high-pressure liquid refrigerant, obtain a low-temperature low-pressure liquid refrigerant, and deliver the low-temperature low-pressure liquid refrigerant to the evaporation pipeline 301; the evaporation pipeline 301 is configured to cool the water outlet pipeline 202 through a low-temperature low-pressure liquid refrigerant to obtain a low-temperature low-pressure gas refrigerant, and transmit the low-temperature low-pressure gas refrigerant to the compressor 303; the compressor 303 is also configured to compress a low-temperature and low-pressure gas refrigerant to obtain a high-temperature and high-pressure gas refrigerant.

The structure of the condensing duct 302 may be a coil structure, such as a circular coil structure or a rectangular coil structure, which is not limited in this application.

The compressor 303 may be of the screw compressor, centrifugal compressor, or magnetic levitation compressor type, but is not limited in this application.

The throttle 304 may be a throttle valve.

In one design, fig. 7 is a schematic structural view of another refrigeration module provided herein, and as shown in fig. 7, the refrigeration module 30 further includes a heat exchanger 305; the water outlet conduit 202 and the evaporation conduit 301 each extend through a heat exchanger 305.

The evaporation pipe 301 is used to cool the outlet pipe 202 by passing a low-temperature low-pressure liquid refrigerant through the heat exchanger 305.

It should be noted that the structure of the heat exchanger 305 may be a plate-type evaporation structure or a shell-and-tube evaporation structure, which is not limited in this application.

In one design, fig. 8 is a schematic structural view of another refrigeration module provided herein, and as shown in fig. 8, the portion of the outlet conduit 202 located in the heat exchanger 305 is a first branch conduit 2021, and the outlet conduit 202 further includes a second branch conduit 2022 connected in parallel with the first branch conduit 2021; the second branch conduit 2022 is located outside the heat exchanger 305; a three-way valve 2023 is provided at the parallel connection of the first branch pipe 2021 and the second branch pipe 2022.

It should be noted that the three-way valve 2023 shown in fig. 8 is disposed at a parallel connection position of one end of the first branch pipe 2021 and one end of the second branch pipe 2022, and the three-way valve 2023 may also be disposed at a parallel connection position of the other end of the first branch pipe 2021 and the other end of the second branch pipe 2022, which is not limited in this application.

With the refrigeration module 30 open, the three-way valve 2023 connects the outlet conduit 202 and the first branch conduit 2021, disconnecting the water conduit 202 and the second branch conduit 2022. With the refrigeration module 30 closed, the three-way valve 2023 disconnects the water outlet conduit 202 from the first branch conduit 2021, and communicates the water conduit 202 with the second branch conduit 2022.

It should be noted that the three-way valve 2023 may also be modified, for example, the three-way valve 2023 may be modified to be a switch disposed in the second branch pipe 2022 and a switch disposed in the first branch pipe 2021. In this case, if the refrigeration module 30 is turned on, the switch in the first branch pipe 2021 is turned on, and the switch in the second branch pipe 2022 is turned off. If the refrigeration module 30 is closed, the switch in the first branch pipe 2021, the communication water pipe 202 is closed, and the switch in the second branch pipe 2022 is opened.

In one design, fig. 9a is a schematic structural diagram of another cooling system provided in the present application, as shown in fig. 9a, the air-cooling module 101 further includes an air outlet 1013, and the air outlet 1013 is located on the housing 103; the condensation duct 302 is located inside the housing 103 at the position of the air outlet 1013.

Fig. 9b is a top view of a cooling system provided in the present application, as shown in fig. 9b, air inlets 1011 are located at two sides of the housing 103 of the closed cooling tower 10, the air inducing device 1012 is located at a top center position of the closed cooling tower 10, and air outside the closed cooling tower 10 enters the closed cooling tower 10 through the air inducing device 1012 and the air inlets 1011. The pre-cooling module 102 is located at the position of the air inlet 1011 inside the housing 103, and the refrigeration module 30 is located at the third side of the housing 103 of the closed cooling tower 10.

It should be noted that, for the specific description of each device shown in fig. 9b, reference may be made to the related description in the cooling system, and details are not repeated here.

The refrigeration module 30 shown in fig. 9b is connected to the shell 103 of the closed cooling tower 10, and the refrigeration module 30 may be separated from the shell 103 of the closed cooling tower 10, which is not limited in this application.

Fig. 10 is a schematic structural diagram of a control system provided in the present application, where the control system is used to control the cooling system, and the technical solution of the embodiment of the present application may be applied to the control system shown in fig. 10, and as shown in fig. 10, the control system 100 includes a control device 110 of the cooling system and a data transmission device 120. For convenience of description, the control device of the cooling system is simply referred to as a control device in the following embodiments, and is collectively described herein.

The control device 110 and the data transmission device 120 are directly or indirectly connected, and in this connection relationship, the connection may be a wired connection or a wireless connection, which is not limited in the embodiment of the present application.

The control device 110 may be configured to receive the air temperature outside the closed cooling tower and the requested temperature of the outlet water from the data transmission device 120.

The data transmitter 120 may be configured to transmit the air temperature outside the closed cooling tower and the requested temperature of the outlet water to the controller 110.

It should be noted that the control device 110 and the data transmission device 120 may be independent devices or may be integrated into the same device, and this disclosure is not limited thereto.

When the control device 110 and the data transmission device 120 are integrated in the same device, the communication mode between the control device 110 and the data transmission device 120 is the communication between the internal modules of the device. In this case, the communication flow between the two is the same as "the communication flow between the control device 110 and the data transmission device 120 is the same when they are independent of each other".

In the following embodiments provided by the present disclosure, the present disclosure is explained by taking an example in which the control device 110 and the data transmission device 120 are set independently of each other.

In practical applications, the control method of the cooling system provided in the embodiment of the present application may be applied to the control device 110, and may also be applied to a device included in the control device 110. For convenience of description, the control method of the cooling system is simply referred to as a control method in the following embodiments, and is collectively described herein.

The following describes a control method provided in an embodiment of the present application, taking an example in which the control method is applied to the control device 110, with reference to the drawings.

Fig. 11 is a schematic flowchart of a control method provided in the present application, and as shown in fig. 11, the method includes the following steps:

s1101, the control device obtains the air temperature outside the closed cooling tower and the required temperature of the outlet water.

It should be noted that the temperature of the air outside the closed cooling tower may be a temperature measured by an external thermometer of the closed cooling tower, or may be a temperature of an ambient wet bulb outside the closed cooling tower, which is not limited in this application.

As a possible implementation, the control device sends a data obtaining instruction to the data sending device, and receives a response message from the data sending device, the data obtaining instruction is used for obtaining the air temperature outside the closed cooling tower and the required temperature of the outlet water from the data sending device, and the response message includes the air temperature outside the closed cooling tower and the required temperature of the outlet water.

And S1102, if the difference value between the air temperature and the required water outlet temperature is greater than a first threshold value, the control device starts the pre-cooling module or starts the pre-cooling module and the refrigerating module.

It should be noted that the first threshold may be-3, or the first threshold may be-4, or the first threshold may be-5, which is not limited in this application.

Based on the scheme, when the temperature of the air outside the closed cooling tower is unchanged, if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value, the precooling module is started or the precooling module and the refrigerating module are started. On the one hand, the cooling effect of the closed cooling tower can be improved through the pre-cooling module and/or the refrigerating module, on the other hand, when the difference value between the air temperature and the required temperature of the discharged water is smaller than a first threshold value, the pre-cooling module and the refrigerating module are closed, the situation that the pre-cooling module and the refrigerating module are opened all the time can be avoided, energy consumption is further caused, and the energy conservation of the cooling system is improved.

In one design, fig. 12 is a schematic flowchart of another control method provided by the present application, and as shown in fig. 12, S1102 provided in the embodiment of the present application specifically includes:

and S1201, if the difference value is larger than the first threshold and smaller than the second threshold, the control device starts the precooling module.

Wherein the second threshold is greater than the first threshold.

It should be noted that the second threshold may be 0, or the second threshold may be 1, or the second threshold may be 2, which is not limited in this application.

S1202, if the difference value is larger than a second threshold value, the control device starts the precooling module and the refrigerating module;

The above-mentioned scheme provided by the embodiment of the present application is mainly described from the perspective of the control device executing the control method. In order to implement the above functions, the control device includes a hardware structure and/or a software module that performs each function. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the control device may be divided into the functional modules according to the method example, for example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. Further, a "module" herein may refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality.

In the case of functional block division, fig. 13 shows a schematic structural diagram of a control device. As shown in fig. 13, the control device 130 includes an acquisition module 1301 and a processing module 1302.

In some embodiments, the control device 130 may also include a memory module (not shown in fig. 13) for storing program instructions and data.

The obtaining module 1301 is used for obtaining the air temperature outside the closed cooling tower and the required temperature of the effluent; the processing module 1302 is configured to start the pre-cooling module or start the pre-cooling module and the refrigeration module if a difference between the air temperature and the required temperature of the discharged water is greater than a first threshold.

Optionally, the processing module 1302 is specifically configured to: if the difference value is larger than the first threshold and smaller than the second threshold, starting the precooling module, wherein the value is larger than the first threshold; if the difference value is larger than a second threshold value, starting the precooling module and the refrigerating module;

all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of implementing the functions of the above functional modules in the form of hardware, fig. 14 shows a schematic structural diagram of a control device. As shown in fig. 14, the control device 140 includes a processor 1401, a memory 1402, and a bus 1403. The processor 1401 and the memory 1402 may be connected by a bus 1403.

The processor 1401 is a control center of the control device 140, and may be a single processor or a collective name of a plurality of processing elements. For example, the processor 1401 may be a general-purpose Central Processing Unit (CPU), or may be another general-purpose processor. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, processor 1401 may include one or more CPUs, such as CPU0 and CPU 1 shown in fig. 14.

The memory 1402 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 1402 may exist separately from the processor 1401, and the memory 1402 may be connected to the processor 1401 via a bus 1403 for storing instructions or program code. The processor 1401 can implement the one-time id using method provided by the embodiment of the present application when calling and executing the instructions or program codes stored in the memory 1402.

In another possible implementation, the memory 1402 may also be integrated with the processor 1401.

The bus 1403 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.

It is to be noted that the structure shown in fig. 14 does not constitute a limitation of the control device 140. In addition to the components shown in fig. 14, the control device 140 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

As an example, in conjunction with fig. 13, the acquisition module 1301 and the processing module 1302 in the control apparatus 130 implement the same functions as the processor 1401 in fig. 14.

Optionally, as shown in fig. 14, the control device 140 provided in the embodiment of the present application may further include a communication interface 1404.

A communication interface 1404 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), etc. Communication interface 1404 may include a receiving unit for receiving data, and a transmitting unit for transmitting data.

In a possible implementation manner, in the control device 140 provided in this embodiment of the present application, the communication interface 1404 may also be integrated in the processor 1401, which is not specifically limited in this embodiment of the present application.

As one possible product form, the control device according to the embodiment of the present application may be realized by using the following: one or more Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

Through the above description of the embodiments, it is clear for a person skilled in the art that, for convenience and simplicity of description, only the division of the above functional units is illustrated. In practical applications, the above function allocation can be performed by different functional units according to needs, that is, the internal structure of the device is divided into different functional units to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The present invention also provides a computer-readable storage medium, on which a computer program or instructions are stored, wherein the computer program or instructions, when executed, cause a computer to perform the steps in the method flow shown in the above method embodiment.

Embodiments of the present application provide a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the steps of the method flows shown in the above-described method embodiments.

An embodiment of the present application provides a chip system, including: a processor and an interface circuit; an interface circuit for receiving a computer program or instructions and transmitting the same to a processor; the processor is adapted to execute the computer program or instructions to cause the system-on-chip to perform the method according to the first aspect.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an application specific ASIC. In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the control device, the computer-readable storage medium, and the computer program product provided in this embodiment can be applied to the control method provided in this embodiment, the technical effects obtained by the control device, the computer-readable storage medium, and the computer program product can also refer to the above method embodiments, and the embodiments of this application are not described herein again.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A closed cooling tower is characterized by being used for cooling a water circulation pipeline and comprising an air cooling module and a precooling module; the water circulation pipeline comprises a cooling pipeline positioned in the closed cooling tower; the air cooling module comprises an air inlet and an air inducing device, and the air inlet is positioned on a shell of the closed cooling tower;

the air cooling module is used for introducing air outside the closed cooling tower into the closed cooling tower through the air inducing device, the air inlet and the pre-cooling module so as to cool the cooling pipeline;

the pre-cooling module is used for cooling the air introduced into the closed cooling tower in the process that the air cooling module introduces the air outside the closed cooling tower into the closed cooling tower.

2. The closed cooling tower of claim 1, wherein the pre-cooling module comprises a pre-cooling coil;

the pre-cooling coil is positioned at the position of the air inlet on the inner side of the shell;

the pre-cooling coil is internally provided with flowing cooling liquid and is used for cooling air flowing through the air inlet through the flowing cooling liquid.

3. The closed cooling tower of claim 2, wherein in the case where the flowing cooling fluid is water, the pre-cooling module further comprises a pre-cooling spray head;

the pre-cooling spray head is positioned at the bottom of the topmost coil pipe of the pre-cooling coil pipe;

the pre-cooling spray head is used for spraying water downwards so as to cool the air flowing through the air inlet.

4. The closed cooling tower of claim 2 or 3, wherein, in the case where the flowing cooling liquid is water, the pre-cooling module comprises: a water accumulation plate and a water pump; the water accumulation plate is positioned at the bottom of the closed cooling tower;

the water accumulation disc is used for collecting water in the closed cooling tower;

the water pump is used for guiding water in the water accumulation plate to the pre-cooling coil pipe.

5. A cooling system, characterized by comprising a refrigeration module, a water circulation pipeline and the closed cooling tower of any one of claims 1-4; the closed cooling tower comprises an air cooling module and a precooling module; the water circulation pipeline comprises a cooling pipeline positioned in the closed cooling tower and a water outlet pipeline positioned outside the closed cooling tower; the air cooling module comprises an air inlet and an air inducing device, and the air inlet is positioned on a shell of the closed cooling tower;

the pre-cooling module is used for cooling the air introduced into the closed cooling tower in the process that the air cooling module introduces the air outside the closed cooling tower into the closed cooling tower;

the refrigeration module is used for cooling the water outlet pipeline.

6. The cooling system of claim 5, wherein the refrigeration module comprises an evaporation conduit, a condensation conduit, a compressor, and a throttling device; the compressor is respectively connected with the evaporation pipeline and the condensation pipeline; the throttling device is respectively connected with the evaporation pipeline and the condensation pipeline;

the compressor is used for conveying a high-temperature and high-pressure gas refrigerant to the condensation pipeline;

the condensing pipeline is used for cooling the received high-temperature high-pressure gas refrigerant to obtain a low-temperature high-pressure liquid refrigerant, and conveying the low-temperature high-pressure liquid refrigerant to the throttling device;

the throttling device is used for decompressing the low-temperature high-pressure liquid refrigerant after receiving the low-temperature high-pressure liquid refrigerant to obtain a low-temperature low-pressure liquid refrigerant, and conveying the low-temperature low-pressure liquid refrigerant to the evaporation pipeline;

the evaporation pipeline is used for cooling the water outlet pipeline through the low-temperature low-pressure liquid refrigerant to obtain a low-temperature low-pressure gas refrigerant, and the low-temperature low-pressure gas refrigerant is conveyed to the compressor;

the compressor is also used for compressing the low-temperature low-pressure gas refrigerant to obtain the high-temperature high-pressure gas refrigerant.

7. The cooling system of claim 6, wherein the refrigeration module further comprises a heat exchanger; the water outlet pipeline and the evaporation pipeline respectively penetrate through the heat exchanger;

the evaporation pipeline is used for cooling the water outlet pipeline in the heat exchanger through the low-temperature low-pressure liquid refrigerant.

8. The cooling system of claim 7, wherein the portion of the outlet conduit within the heat exchanger is a first branch conduit, the outlet conduit further comprising a second branch conduit in parallel with the first branch conduit; the second branch pipe is positioned outside the heat exchanger;

and a three-way valve is arranged at the parallel connection position of the first branch pipeline and the second branch pipeline.

9. The cooling system according to any one of claims 6 to 8, wherein the air-cooled module further comprises an air outlet, the air outlet being located on the housing;

the condensation pipeline is positioned at the position of the air outlet on the inner side of the shell.

10. A control method of a cooling system, which is applied to the cooling system according to any one of claims 5 to 8, the method comprising:

acquiring the air temperature outside the closed cooling tower and the required temperature of effluent;

and if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value, starting the precooling module or starting the precooling module and the refrigerating module.

11. The method of claim 10, wherein turning on the pre-cooling module or turning on the pre-cooling module and the refrigeration module if the difference between the air temperature and the desired temperature of the effluent is greater than a first threshold comprises:

if the difference value is greater than a first threshold value and smaller than a second threshold value, starting the precooling module, wherein the second threshold value is greater than the first threshold value;

and if the difference value is larger than a second threshold value, starting the precooling module and the refrigerating module.

12. A control device for a cooling system, which is used for controlling the cooling system according to any one of claims 5 to 8, the cooling system comprising: a refrigeration module, a water circulation conduit, and the closed cooling tower of any one of claims 1-4; the closed cooling tower comprises an air cooling module and a precooling module; the water circulation pipeline comprises a cooling pipeline positioned in the closed cooling tower and a water outlet pipeline positioned outside the closed cooling tower; the air cooling module comprises an air inlet and an air inducing device, and the air inlet is positioned on a shell of the closed cooling tower;

the refrigeration module is used for cooling the water outlet pipeline.

The device comprises: an acquisition module and a processing module;

the acquisition module is used for acquiring the air temperature outside the closed cooling tower and the required temperature of the effluent;

and the processing module is used for starting the precooling module or starting the precooling module and the refrigerating module if the difference value between the air temperature and the required temperature of the effluent is greater than a first threshold value.

13. The apparatus of claim 10, wherein the processing module is specifically configured to:

14. A control device of a cooling system, characterized by comprising: a processor coupled with a memory, the memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of claim 10 or 11.

15. A computer-readable storage medium having stored thereon a computer program or instructions, which, when executed, cause a computer to perform the method of claim 10 or 11.