CN112672609A

CN112672609A - Data center refrigerating system, anti-freezing control method, device and equipment

Info

Publication number: CN112672609A
Application number: CN202011567486.9A
Authority: CN
Inventors: 王樱
Original assignee: 21VIANET GROUP Inc
Current assignee: 21VIANET GROUP Inc
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-16
Anticipated expiration: 2040-12-25
Also published as: CN112672609B

Abstract

The invention discloses a data center refrigerating system, an anti-freezing control method, an anti-freezing control device and data center refrigerating equipment.

Description

Data center refrigerating system, anti-freezing control method, device and equipment

Technical Field

The invention relates to the technical field of refrigeration, in particular to a data center refrigeration system, an anti-freezing control method, an anti-freezing control device and data center refrigeration equipment.

Background

The data center refrigerating system is a refrigerating system which runs all the year round, and cold water needs to be provided for a server room all the year round to avoid overheating or freezing of pipelines. While data center cooling systems are high reliability systems, backup systems are often provided. However, when the weather is cold, such as in winter, some backup systems, such as backup outdoor water pipe systems, may freeze due to the outdoor temperature being too low, thereby shutting down the operation. Therefore, effective antifreeze measures are required to freeze the system.

In the related art, an anti-freezing device is provided in an outdoor water pipe system of a data center refrigeration system to prevent freezing of the outdoor water pipe system, but in the related art, the outdoor water pipe system is directly and integrally prevented from freezing, and although freezing of the outdoor water pipe system can be achieved, freezing prevention efficiency is low.

Disclosure of Invention

The embodiment of the invention provides a data center refrigerating system, an anti-freezing control method, an anti-freezing control device and anti-freezing control equipment, and aims to solve the problem of low anti-freezing efficiency caused by directly performing integral anti-freezing on an outdoor water pipe system in the data center refrigerating system in the related art.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, a data center refrigeration system is provided, the data center refrigeration system includes a cooling tower located outdoors, a refrigeration terminal located indoors, and a pipeline system connecting the cooling tower and the refrigeration terminal, the pipeline system includes an outdoor pipeline system, and electric tracing devices are arranged on the outdoor pipeline system in sections according to operation types.

In a second aspect, a freeze protection control method based on the system of the first aspect is provided, where the method includes:

determining the operation type of a pipeline to be prevented from freezing;

according to the anti-freezing strategies corresponding to the pipelines to be prevented from freezing of each operation type, the pipelines to be prevented from freezing are prevented from freezing

In a third aspect, a data center refrigeration system freeze protection control apparatus is provided, the apparatus comprising:

the determining module is used for determining the operation type of the pipeline to be prevented from freezing;

and the anti-freezing module is used for preventing freezing of the pipeline to be prevented according to the anti-freezing strategies corresponding to the pipelines to be prevented from being frozen of each operation type.

In a fourth aspect, there is provided an apparatus comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the second aspect as described above.

In a fifth aspect, a computer-readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, carries out the steps of the method according to the second aspect as described above.

The at least one technical scheme provided by the embodiment of the invention can achieve the following technical effects:

because the electric heat tracing device is arranged on the outdoor pipeline system of the refrigeration system of the data center in a segmentation mode according to the operation type, when the outdoor pipeline system is prevented from freezing according to the electric heat tracing device, segmentation freezing can be performed distinctively and intelligently, and since all pipelines are not directly subjected to unified freezing prevention, segmentation freezing can be distinctively and intelligently performed, the freezing prevention efficiency can be effectively improved, and freezing prevention can be achieved efficiently and energy-effectively.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a data center refrigeration system provided by one embodiment of the present invention;

FIG. 2 is a schematic flow chart of an antifreeze control method according to an embodiment of the present invention;

FIG. 3 is a block diagram illustrating the components of an antifreeze control apparatus 300 for a refrigeration system of a data center according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a hardware configuration of an antifreeze control apparatus of a data center refrigeration system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic diagram of a data center refrigeration system according to an embodiment of the present invention.

As shown in fig. 1, a data center refrigeration system in an embodiment of the invention may include a cooling tower, a refrigeration terminal, and a piping system connecting the cooling tower and the refrigeration terminal. Wherein the cooling tower may be located outdoors and the refrigeration terminal may be located indoors. Since the piping system connects the cooling tower and the refrigeration terminal, when the cooling tower is located outdoors, the piping system may include a piping system located outdoors, that is, an outdoor piping system.

In an embodiment of the present invention, the piping system may include an outdoor piping system, wherein the outdoor piping system may be provided with electric tracing devices in sections according to operation types.

In one embodiment, the operation type may be an operation type of a pipe in the outdoor piping system. The operation types of the pipes may include long-term operation and intermittent operation, that is, the outdoor pipe system may include long-term operation pipes and intermittent operation pipes.

In one example, a long-running pipeline may include at least: a cooling tower water replenishing pipeline (also called a cooling water replenishing pipeline), an outdoor humidifying pipeline and a cooling tower balance pipeline. In this example, the cooling tower balance duct may include a cooling tower balance duct branch duct and a cooling tower balance duct main duct; the outdoor humidifying pipe may be an outdoor humidifying main pipe.

In another example, an intermittently operated pipeline may include at least: a cooling tower backup equipment pipeline, a cooling tower overflow pipeline, a cooling tower drainage pipeline (also called as a cooling water drainage pipeline), a freezing water chamber outer pipeline and a cooling water chamber outer pipeline. In this example, the cooling tower backup device conduit may be specifically a cooling tower backup device water inlet and outlet branch conduit; the cooling tower overflow pipeline can be a cooling tower overflow branch pipe; the cooling tower drainage pipeline can be a cooling tower drainage main pipe; the freezing water outdoor pipeline can be a main ring pipe or a vertical pipe outside the freezing water chamber; the outer pipeline of the cooling water chamber can be a main ring pipe or a vertical pipe outside the cooling water chamber.

In one embodiment, the long-term operation pipeline can be provided with an electric heat tracing device so as to prevent the long-term operation pipeline from being frozen through the electric heat tracing device; and the intermittently operated pipeline can be sectionally provided with the electric tracing device so as to prevent the intermittently operated pipeline from being frozen through the sectionally arranged electric tracing device.

As can be seen from the above, the electric tracing device can be sectionally installed on the outdoor pipeline system of the data center refrigeration system according to the operation type, so that when the outdoor pipeline system is prevented from freezing according to the electric tracing device, sectionally and intelligently segmented freezing can be performed, and since all pipelines are not directly and uniformly prevented from freezing, but sectionally and intelligently segmented freezing can be performed, the freezing prevention efficiency can be effectively improved, and thus freezing prevention can be efficiently achieved in an energy-saving manner.

Referring to fig. 2, fig. 2 is a schematic flow chart of an antifreeze control method of a data center refrigeration system according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:

step 102: and determining the operation type of the pipeline to be prevented from freezing.

Step 104: and performing anti-freezing on the pipeline to be anti-frozen according to the anti-freezing strategy corresponding to the pipeline to be anti-frozen of each operation type.

In an embodiment of the invention, the type of operation of the pipe to be protected from frost may be determined.

In one embodiment, the type of operation of the pipe to be protected from freezing may include long-term operation as well as intermittent operation.

In one example, the pipes to be protected from freezing may be pipes in a data center refrigeration system, for example, may be embodied as pipes in an outdoor piping system in a data center refrigeration system. When the pipe to be prevented from freezing is the first pipe, it may be determined that the operation type of the pipe to be prevented from freezing is long-term operation. The first pipeline may include at least a cooling tower water replenishing pipeline (also referred to as a cooling water replenishing pipeline), an outdoor humidifying pipeline, and a cooling tower balancing pipeline. In this example, the cooling tower balance duct may include a cooling tower balance duct branch duct and a cooling tower balance duct main duct; the outdoor humidifying pipe may be an outdoor humidifying main pipe.

When the pipeline to be prevented from freezing is the second pipeline, it may be determined that the operation type of the pipeline to be prevented from freezing is intermittent operation, wherein the second pipeline may at least include a cooling tower backup device pipeline, a cooling tower overflow pipeline, a cooling tower drainage pipeline (which may also be referred to as a cooling water drainage pipeline), a freezing water chamber outer pipeline, and a cooling water chamber outer pipeline. In this example, the cooling tower backup device conduit may be specifically a cooling tower backup device water inlet and outlet branch conduit; the cooling tower overflow pipeline can be a cooling tower overflow branch pipe; the cooling tower drainage pipeline can be a cooling tower drainage main pipe; the freezing water outdoor pipeline can be a main ring pipe or a vertical pipe outside the freezing water chamber; the outer pipeline of the cooling water chamber can be a main ring pipe or a vertical pipe outside the cooling water chamber.

After the operation types of the pipelines to be prevented from freezing are determined, the pipelines to be prevented from freezing can be prevented according to the anti-freezing strategies corresponding to the pipelines to be prevented from freezing of all the operation types.

In this embodiment, when the pipeline to be prevented from being frozen, the pipeline to be prevented from being frozen can be prevented from being frozen by turning on the electric tracing operation mode.

In this embodiment, the anti-freezing strategies corresponding to the pipelines to be anti-frozen of different operation types may be different or the same, and this embodiment does not limit this.

In one embodiment, the anti-freezing strategy corresponding to the pipeline to be anti-frozen with the long-term operation type may be as follows: and when the temperature in the pipeline to be prevented from freezing is lower than a preset threshold value, the pipeline to be prevented from freezing is prevented from freezing.

In one example, a temperature sensor may be provided within the pipe to be protected from freezing to monitor the temperature within the pipe to be protected from freezing.

For example, the preset threshold may be 5 ℃, and the anti-freezing strategy corresponding to the pipeline to be anti-frozen with the long-term operation type may be: and when the temperature in the pipeline to be prevented from freezing is lower than 5 ℃, the pipeline to be prevented from freezing is prevented from freezing. Then, the pipeline to be prevented from being frozen with the operation type of long-term operation can be prevented from being frozen according to the anti-freezing strategy.

For example, the monitored temperature in the pipeline to be prevented from freezing may be 3 ℃, and according to the anti-freezing strategy, the pipeline to be prevented from freezing may be determined.

In this embodiment, the anti-freezing strategy corresponding to the pipeline to be anti-frozen, the operation type of which is long-term operation, may further include: and when the temperature in the pipeline to be prevented from freezing is not lower than a preset threshold value, the pipeline to be prevented from freezing is not prevented.

For example, the preset threshold value may be 5 ℃, the temperature in the pipeline to be prevented from freezing may be 6 ℃, and it may be determined not to prevent the pipeline to be prevented from freezing according to the above-mentioned anti-freezing strategy.

In one embodiment, the anti-freezing strategy corresponding to the pipeline to be anti-frozen with the operation type of intermittent operation may be as follows: and when water flows exist in the pipeline to be prevented from freezing, the pipeline to be prevented from freezing is prevented from freezing.

In one example, whether there is water flow in the pipe to be protected from freezing may be monitored by a water flow sensor, wherein the water flow sensor may be disposed in the pipe to be protected from freezing or disposed on a valve connected to the pipe to be protected from freezing, which is not limited in this example.

For example, if the water flow in the pipeline to be prevented from freezing is monitored through the water flow sensor, the pipeline to be prevented from freezing can be determined according to the anti-freezing strategy.

In this embodiment, the anti-freezing strategy corresponding to the pipeline to be anti-frozen, the operation type of which is intermittent operation, may further include: when no water flow exists in the pipeline to be prevented from freezing, the pipeline to be prevented from freezing can be avoided.

For example, if the water flow sensor monitors that there is no water flow in the pipe to be protected from freezing, the pipe to be protected from freezing may not be protected from freezing according to the anti-freezing strategy.

In another embodiment, the pipe to be protected against freezing, the type of operation of which is intermittent, may comprise a plurality of functionally different pipe sections. In one example, the functionally different pipe sections may be obtained in advance from the functions of the pipe to be protected against freezing which are intermittently operated according to the operation type.

The anti-freezing strategy corresponding to the anti-freezing pipeline with the operation type of intermittent operation may correspond to: and freezing prevention is carried out on the pipeline section with water flow in the plurality of pipeline sections. At this time, the section of the plurality of pipe sections, which has no water flow, may not be freeze-protected.

For example, the pipeline 1 to be protected against freezing, the type of operation of which is intermittent, may comprise 4 pipeline sections: the pipeline comprises a pipeline section 11, a pipeline section 12, a pipeline section 13 and a pipeline section 14, wherein the pipeline section 11, the pipeline section 12, the pipeline section 13 and the pipeline section 14 have different functions; water flows are arranged in the pipeline sections 11 and 12; there is no water flow in the pipe section 13 as well as in the pipe section 14. The anti-freezing strategy corresponding to the pipeline 1 to be anti-frozen can be as follows: the pipe sections 11, 12, 13 and 14 in which there is a flow of water are freeze protected. The pipe section 11 as well as the pipe section 12 can be frost protected while frost protection is carried out according to a frost protection strategy corresponding to the pipe 1 to be frost protected. At this time, the pipe section 13 and the pipe section 14 may not be freeze-protected.

As can be seen from the above, in this embodiment, the operation type of the pipeline to be prevented from being frozen may be determined, and then, the pipeline to be prevented from being frozen may be performed according to the freezing prevention policy corresponding to the pipeline to be prevented of each operation type.

The anti-freezing method and the anti-freezing device have the advantages that the anti-freezing strategy corresponding to the operation type of the pipeline to be prevented from freezing can be used for preventing the pipeline to be prevented from freezing, so that the pipeline to be prevented from freezing can be prevented intelligently and distinctively when being prevented from freezing, and all pipelines can be prevented from freezing intelligently and distinctively without being directly subjected to unified anti-freezing, so that the anti-freezing efficiency can be effectively improved, and the anti-freezing effect can be realized efficiently and energy-effectively.

In response to the above-mentioned antifreeze method, an embodiment of the present invention further provides an antifreeze control antifreeze apparatus for a refrigeration system of a data center, as shown in fig. 3, the antifreeze apparatus 300 includes:

a determining module 301, configured to determine an operation type of a pipeline to be prevented from freezing;

the anti-freezing module 302 is configured to perform anti-freezing on the pipeline to be prevented from being frozen according to an anti-freezing strategy corresponding to the pipeline to be prevented from being frozen of each operation type.

Optionally, the operation types of the pipeline to be prevented from being frozen comprise long-term operation and intermittent operation;

the determining module 301 is configured to:

when the pipeline to be prevented from freezing is a first pipeline, determining that the operation type of the pipeline to be prevented from freezing is long-term operation; the first pipeline at least comprises a cooling tower water replenishing pipeline, an outdoor humidifying pipeline and a cooling tower balance pipeline;

when the pipeline to be prevented from freezing is a second pipeline, determining that the operation type of the pipeline to be prevented from freezing is intermittent operation; the second pipeline at least comprises a cooling tower backup equipment pipeline, a cooling tower overflow pipeline, a cooling tower drainage pipeline, a freezing water chamber outer pipeline and a cooling water chamber outer pipeline.

Optionally, the anti-freezing strategy corresponding to the pipeline to be anti-frozen, the operation type of which is long-term operation, is as follows: and when the temperature in the pipeline to be prevented from freezing is lower than a preset threshold value, the pipeline to be prevented from freezing.

Optionally, the antifreeze strategy corresponding to the pipeline to be antifreeze, the operation type of which is intermittent operation, is as follows: and when water flows exist in the pipeline to be prevented from freezing, the pipeline to be prevented from freezing is prevented.

Optionally, the pipeline to be prevented from being frozen, the operation type of which is intermittent operation, comprises a plurality of pipeline sections with different functions;

correspondingly, the anti-freezing strategy corresponding to the anti-freezing pipeline with the operation type of intermittent operation is as follows: and freezing prevention is carried out on the pipeline section with water flow in the plurality of pipeline sections.

In this embodiment, the operation type of the pipeline to be prevented from freezing may be determined, and then the pipeline to be prevented from freezing may be prevented from freezing according to the anti-freezing strategy corresponding to the pipeline to be prevented from freezing of each operation type.

Corresponding to the above anti-freezing control method based on the data center refrigeration system, an embodiment of the present invention further provides an apparatus, and fig. 4 is a schematic diagram of a hardware structure of the anti-freezing control apparatus for the data center refrigeration system according to an embodiment of the present invention.

The data center refrigeration system anti-freezing control device can be a terminal device or a server for anti-freezing control provided by the above embodiment.

The data center refrigeration system antifreeze control apparatus, which may vary widely depending on configuration or performance, may include one or more processors 401 and memory 402, where the memory 402 may store one or more stored applications or data. Wherein memory 402 may be transient or persistent. The application stored in the memory 402 may include one or more modules (not shown), each of which may include a series of computer-executable instructions for a data center refrigeration system antifreeze control apparatus. Still further, the processor 401 may be configured to communicate with the memory 402 to execute a series of computer-executable instructions in the memory 402 on the data center refrigeration system antifreeze control apparatus. The data center refrigeration system antifreeze control apparatus can also include one or more power supplies 403, one or more wired or wireless network interfaces 404, one or more input output interfaces 405, and one or more keyboards 406.

In particular, in this embodiment, the data center refrigeration system antifreeze control apparatus includes a memory, and one or more programs, wherein the one or more programs are stored in the memory, and the one or more programs may include one or more modules, and each module may include a series of computer-executable instructions for the data center refrigeration system antifreeze control apparatus, and the one or more programs configured for execution by the one or more processors include computer-executable instructions for:

determining the operation type of a pipeline to be prevented from freezing;

and performing anti-freezing on the pipeline to be prevented from freezing according to anti-freezing strategies corresponding to the pipelines to be prevented from freezing of all operation types.

the computer executable instructions, when executed, may cause the processor to:

In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate application-specific integrated circuit chips. Furthermore, nowadays, instead of manually making an Integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Hardware Description Language), traffic, pl (core universal Programming Language), HDCal (jhdware Description Language), lang, Lola, HDL, laspam, hardward Description Language (vhr Description Language), vhal (Hardware Description Language), and vhigh-Language, which are currently used in most common. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.

The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory. Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may thus be considered a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functions of the units may be implemented in the same software and/or hardware or in a plurality of software and/or hardware when implementing the invention.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

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

The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A data center refrigerating system comprises a cooling tower positioned outdoors, a refrigerating terminal positioned indoors and a pipeline system for connecting the cooling tower and the refrigerating terminal,

the pipeline system comprises an outdoor pipeline system, and electric tracing devices are arranged on the outdoor pipeline system in sections according to operation types.

2. The system of claim 1, wherein the outdoor piping system comprises long-running pipes and intermittently running pipes, the long-running pipes being provided with electric tracing means; and the intermittently operated pipeline is provided with an electric heat tracing device in a subsection manner.

3. The system of claim 2, wherein the long-running conduits include a cooling tower makeup conduit, an outdoor humidification main conduit, and a cooling tower balance conduit; the intermittent operation pipeline at least comprises a cooling tower backup equipment pipeline, a cooling tower overflow pipeline, a cooling tower drainage pipeline, a freezing water chamber outer pipeline and a cooling water chamber outer pipeline.

4. An antifreeze control method based on the system of any one of claims 1 to 3, wherein the method comprises:

determining the operation type of a pipeline to be prevented from freezing;

5. The method as claimed in claim 4, characterized in that the type of operation of the pipeline to be protected against freezing comprises long-term operation and intermittent operation;

the determining of the operation type of the pipeline to be prevented from being frozen comprises the following steps:

6. The method as claimed in claim 5, wherein the anti-freezing strategy corresponding to the pipeline to be anti-freezing with the operation type of long-term operation is as follows: and when the temperature in the pipeline to be prevented from freezing is lower than a preset threshold value, the pipeline to be prevented from freezing.

7. The method as claimed in claim 5, wherein the antifreeze strategy corresponding to the pipeline to be antifreeze with the operation type of intermittent operation is as follows: and when water flows exist in the pipeline to be prevented from freezing, the pipeline to be prevented from freezing is prevented.

8. The method as claimed in claim 5, characterized in that the pipe to be protected against frost, which is operated intermittently, comprises a plurality of functionally different pipe sections;

9. A data center refrigerant system freeze control apparatus, the apparatus comprising:

10. An apparatus, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 4 to 8.