CN218570763U - Cooling water precooling system - Google Patents
Cooling water precooling system Download PDFInfo
- Publication number
- CN218570763U CN218570763U CN202222806592.9U CN202222806592U CN218570763U CN 218570763 U CN218570763 U CN 218570763U CN 202222806592 U CN202222806592 U CN 202222806592U CN 218570763 U CN218570763 U CN 218570763U
- Authority
- CN
- China
- Prior art keywords
- precooling
- cooling
- cooling water
- water
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The application relates to the technical field of cooling equipment of a data center, in particular to a cooling water precooling system, which comprises a cooling water circulation pipeline, an air conditioner, a cooling tower, a cooling water circulation pump, a water chilling unit, a first plate heat exchanger and a second plate heat exchanger, wherein the cooling tower, the cooling water circulation pump, the water chilling unit, the first plate heat exchanger and the second plate heat exchanger are connected in series through the cooling water circulation pipeline and are sequentially arranged from upstream to downstream; the cooling water pre-cooling system further comprises a pre-cooling water circulating pump and a pre-cooling water circulating pipeline, and the pre-cooling water circulating pump, the first plate heat exchanger and the pre-cooling surface cooling section are sequentially connected in series through the pre-cooling water circulating pipeline from upstream to downstream. It is an object of the present application to address at least one of the technical problems involved in the background art and to provide a cooling water precooling system.
Description
Technical Field
The application relates to the technical field of data center cooling equipment, in particular to a cooling water precooling system.
Background
With the development of the IT technology, the informatization process is deep, the data quantity generated in the world every year is increased by times, and the construction and development of a data center are greatly promoted. The data center is a huge system engineering, and plays roles of data processing, data storage, data exchange and the like. With the further development of the internet, with the rising of technologies and applications such as cloud computing and big data, the construction of data centers is facing new challenges and opportunities. At present, with the enhancement of environmental awareness, the concept of green energy-saving data center is also proposed and more paid attention to, although the existing water-cooling water cooling system has an energy-saving mode, there is still a further energy-saving potential space.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to address at least one of the technical problems involved in the background art and to provide a cooling water precooling system.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the application provides a cooling water precooling system, which comprises a cooling water circulation pipeline, an air conditioner, a cooling tower, a cooling water circulation pump, a water chilling unit, a first plate heat exchanger and a second plate heat exchanger, wherein the cooling water circulation pipeline, the cooling tower, the cooling water circulation pump, the water chilling unit, the first plate heat exchanger and the second plate heat exchanger are connected in series through the cooling water circulation pipeline and are sequentially arranged from upstream to downstream;
the cooling water pre-cooling system further comprises a pre-cooling water circulating pump and a pre-cooling water circulating pipeline, and the pre-cooling water circulating pump, the first plate heat exchanger and the pre-cooling surface cooling section are sequentially connected in series through the pre-cooling water circulating pipeline from upstream to downstream.
Optionally, still include first precooling valve and first branch road, first plate heat exchanger includes cooling water entry and cooling water export, the one end of first branch road is connected the cooling water entry, the other end of first branch road is connected the cooling water export, first precooling valve is installed on first branch road.
The technical scheme has the beneficial effects that: therefore, the amount of the cooling water flowing into the first plate heat exchanger can be adjusted by adjusting the first precooling valve, and the cooling capacity of the cooling water which is firstly utilized is flexibly adjusted.
Optionally, the heat exchanger further comprises a second precooling valve, and a branch formed by connecting the second precooling valve and the first plate heat exchanger in series is connected in parallel with the first branch.
The technical scheme has the beneficial effects that: therefore, whether cooling water flows into the first plate heat exchanger or not can be controlled by opening or closing the second precooling valve, and the amount of the cooling water entering the first plate heat exchanger can be adjusted by adjusting the second precooling valve. When the temperature of cooling water is less than the set temperature, and is higher than chilled water supply temperature and subtracts first plate heat exchanger difference in temperature, start precooling system, specifically do: and closing the first precooling valve, opening the second precooling valve, enabling cooling water to flow through the first plate heat exchanger, starting the precooling water circulating pump, and enabling the chilled water type precision air conditioner to be responsible for precooling return air of the machine room through a precooling surface cooling section, then cooling the return air to a set temperature through the surface cooling section and sending the return air into the machine room again.
Optionally, the system further comprises a third pre-cooling valve, and the third pre-cooling valve is installed in the pre-cooling water circulation pipeline.
The technical scheme has the beneficial effects that: therefore, the flow of the precooling water can be adjusted by controlling the third precooling valve so as to change the utilization rate of the cooling capacity of the cooling water, and the precooling water circulating pipeline can be opened or closed through the third precooling valve.
Optionally, the first plate heat exchanger, the precooling water circulating pump connected with the first plate heat exchanger, the precooling surface cooling section, the first precooling valve and the second precooling valve together form a precooling unit, and the cooling water precooling system comprises a plurality of precooling units.
The technical scheme has the beneficial effects that: therefore, a certain number of pre-cooling units can be selectively opened or closed according to requirements, and the utilization amount of cooling water cold during pre-cooling is further adjusted.
Optionally, the heat exchanger further comprises a second branch, a second branch control valve and a third branch control valve, the third branch control valve is connected in parallel with a branch formed by connecting the second plate heat exchanger in series, and the second branch control valve is installed in the second branch.
Optionally, the water chilling unit further comprises a third branch, a fourth branch control valve and a fifth branch control valve, the branch formed by connecting the fifth branch control valve and the water chilling unit in series is connected with the fourth branch in parallel, and the fourth branch control valve is installed on the fourth branch.
Optionally, still include the refrigerated water circulation unit, the refrigerated water circulation unit includes refrigerated water circulation pipeline, refrigerated water primary loop pump and refrigerated water second grade circulating pump, the air conditioner still includes the cold section of table, precool the cold section of table is located the low reaches of cold section of table.
Optionally, the chilled water primary circulating pump, the second plate heat exchanger, the water chilling unit, the chilled water secondary circulating pump and the surface cooling section are sequentially connected in series through the chilled water circulating pipeline.
Optionally, the system further comprises a cold accumulation tank, and the cold accumulation tank is mounted on the chilled water circulation pipeline.
The technical scheme provided by the application can achieve the following beneficial effects:
the cooling water precooling system that this application provided, during the use, cooling water in the cooling water circulation pipeline can flow through cooling tower, cooling water circulating pump, cooling water set, first plate heat exchanger and second plate heat exchanger in proper order, and precooling water in the precooling water circulation pipeline can flow through precooling water circulating pump, first plate heat exchanger in proper order and precooling surface cold section, and cooling water carries out the heat transfer in first plate heat exchanger cooling water and precooling water, makes the cooling water flow through first plate heat exchanger and precooling surface cold section, and the air conditioner is responsible for passing back air of computer lab through precooling surface cold section precooling, is utilized at first with the partial cold volume of cooling water, and the remaining cold volume of cooling water is utilized in proper order in second plate heat exchanger and cooling water set in proper order, makes the cold volume of cooling water by more abundant utilization, and then further improves the energy-conserving ability of current water cooling water system.
Additional features of the present application and advantages thereof will be set forth in the description which follows, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It should be apparent that the drawings in the following description are of some embodiments of the application and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of a cooling water precooling system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an embodiment of a water-cooled chiller in the prior art.
Reference numerals are as follows:
01-a cooling tower; 02-cooling water circulating pump;
03-a water chilling unit; 04-a second plate heat exchanger;
05-cold storage tank; 06-a chilled water primary circulating pump;
07-a chilled water secondary circulating pump; 08-air conditioning;
09-surface cooling section; 10-a fourth branch control valve;
11-a second branch control valve; 12-a first pre-cooling valve;
13-a second pre-cooling valve; 14-a first plate heat exchanger;
15-precooling surface cooling section; 16-a third branch control valve;
17-a fifth branch control valve; 18-precooling water circulating pump;
19-third pre-cooling valve.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. 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 application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, the present application provides a cooling water precooling system, which includes a cooling water circulation pipeline, an air conditioner 08, and a cooling tower 01, a cooling water circulation pump 02, a water chilling unit 03, a first plate heat exchanger 14 and a second plate heat exchanger 04 that are connected in series through the cooling water circulation pipeline and sequentially arranged from upstream to downstream, wherein the air conditioner 08 includes a precooling surface cooling section 15;
the cooling water precooling system further comprises a precooling water circulating pump 18 and a precooling water circulating pipeline, wherein the precooling water circulating pump 18, the first plate heat exchanger 14 and the precooling surface cooling section 15 are sequentially connected in series through the precooling water circulating pipeline from the upstream to the downstream.
As shown in fig. 2, in a water-cooling cold water system in the prior art, chilled water with a relatively constant temperature is used for heat dissipation of a data center, wherein a cold water unit 03 provides chilled water with a relatively constant temperature; the cooling tower 01 dissipates heat on the condensation side of the water chilling unit 03 to the ambient environment; the chilled water type precise air conditioner (or simply referred to as air conditioner 08) in the machine room is responsible for cooling the return air of the machine room to a set temperature through the surface cooling section 09 and then sending the return air into the machine room again; the chilled water primary circulating pump 06 and the chilled water secondary circulating pump 07 drive the chilled water to circulate (part of the system only has the chilled water primary circulating pump 06); the cooling water circulating pump 02 drives the cooling water to circulate; the cold storage tank 05 is responsible for providing continuous refrigeration during a short power outage in the data center. The second plate heat exchanger 04 is used in an energy-saving mode, when the temperature difference between the cooling water and the temperature of the second plate heat exchanger 04 is lower than the return water temperature of the chilled water, the second plate heat exchanger 04 enters a partial natural cooling mode, namely, the cooling water on the cooling side is cooled by the return water of the chilled water through the second plate heat exchanger 04 and then enters the condensation side of the water chilling unit 03, and the return water of the chilled water on the cooling side is cooled and then enters the evaporation side of the water chilling unit 03, so that the working load of the chiller is reduced; when the temperature difference between the cooling water and the second plate heat exchanger 04 is lower than the water supply temperature of the chilled water, the cooling water and the chilled water enter a complete natural cooling mode, the cold quantity exchange is carried out completely through the second plate heat exchanger 04, the cold machine does not work, and the corresponding refrigeration energy consumption is lowest.
The cooling water precooling system provided by the embodiment of the application is used, cooling water in a cooling water circulation pipeline can sequentially flow through the cooling tower 01, the cooling water circulation pump 02, the water chilling unit 03, the first plate heat exchanger 14 and the second plate heat exchanger 04, the precooling water in the precooling water circulation pipeline can sequentially flow through the precooling water circulation pump 18, the first plate heat exchanger 14 and the precooling surface cooling section 15, the cooling water and precooling water in the first plate heat exchanger 14 exchange heat, the cooling water flows through the first plate heat exchanger 14 and the precooling surface cooling section 15, the air conditioner 08 is responsible for precooling machine room return air through the precooling surface cooling section 15, partial cold energy of the cooling water is firstly utilized, the residual cold energy of the cooling water is sequentially utilized in the second plate heat exchanger 04 and the water chilling unit 03, the cold energy of the cooling water is fully utilized, and the energy-saving capability of the existing water cooling system is further improved.
Optionally, the cooling water precooling system that this application embodiment provided still includes first precooling valve 12 and first branch road, first plate heat exchanger 14 includes cooling water entry and cooling water export, the one end of first branch road is connected the cooling water entry, the other end of first branch road is connected the cooling water export, first precooling valve 12 is installed on first branch road. In this way, the amount of cooling water flowing into the first plate heat exchanger 14 can be adjusted by adjusting the first pre-cooling valve 12, and the amount of cooling energy first utilized by the cooling water can be flexibly adjusted.
Optionally, the cooling water precooling system that this application embodiment provided still includes second precooling valve 13, second precooling valve 13 with the branch road that first plate heat exchanger 14 establishes ties and forms with first branch road is parallelly connected. Thus, opening or closing the second pre-cooling valve 13 can control whether the cooling water flows into the first plate heat exchanger 14, and adjusting the second pre-cooling valve 13 can also adjust the amount of the cooling water entering the first plate heat exchanger 14. When the temperature of cooling water is less than the set temperature, and is higher than chilled water supply temperature and subtracts 14 differences in temperature of first plate heat exchanger, start precooling system, specifically do: the first precooling valve 12 is closed, the second precooling valve 13 is opened, cooling water flows through the first plate heat exchanger 14, the precooling water circulating pump 18 is opened, and the chilled water type precision air conditioner is responsible for precooling return air of the machine room through the precooling surface cooling section 15, then cooling the return air to a set temperature through the surface cooling section 09, and sending the return air into the machine room again.
Optionally, the cooling water precooling system that this application embodiment provided still includes third precooling valve 19, third precooling valve 19 install in precooling water circulation pipeline. Therefore, the flow of the precooled water can be adjusted by controlling the third precooling valve 19 so as to change the utilization rate of the cold energy of the cooling water, and the precooling water circulating pipeline can be opened or closed through the third precooling valve 19.
Optionally, the first plate heat exchanger 14, and the pre-cooling water circulation pump 18, the pre-cooling surface cooling section 15, the first pre-cooling valve 12, and the second pre-cooling valve 13 that are all connected to the first plate heat exchanger 14 together form a pre-cooling unit, and the cooling water pre-cooling system includes a plurality of pre-cooling units. Therefore, a certain number of precooling units can be selectively opened or closed according to needs, and the utilization amount of the cooling water cold in precooling is further adjusted.
Optionally, the cooling water precooling system that this application embodiment provided still includes second branch road, second branch road control flap 11 and third branch road control flap 16, third branch road control flap 16 with the branch road that second plate heat exchanger 04 formed in series with the second branch road is parallelly connected, second branch road control flap 11 install in the second branch road.
Optionally, the cooling water precooling system that this application embodiment provided still includes third branch road, fourth branch road control flap 10 and fifth branch road control flap 17, fifth branch road control flap 17 with the branch road that cooling water set 03 establishes ties and form with the fourth branch road is parallelly connected, fourth branch road control flap 10 install in the fourth branch road.
Optionally, the cooling water precooling system that this application embodiment provided still includes chilled water circulation unit, chilled water circulation unit includes chilled water circulation pipeline, chilled water one-level circulating pump 06 and chilled water second grade circulating pump 07, air conditioner 08 still includes the cold section 09 of table, the cold section 15 of table in advance is located the low reaches of the cold section 09 of table.
Optionally, the chilled water primary circulation pump 06, the second plate heat exchanger 04, the water chilling unit 03, the chilled water secondary circulation pump 07 and the surface cooling section 09 are sequentially connected in series through the chilled water circulation pipeline.
Optionally, the cooling water precooling system that this application embodiment provided still includes cold-storage tank 05, cold-storage tank 05 install in chilled water circulation pipeline.
In order to better explain the cooling water precooling system provided by the present application, the present application further provides an application example of the cooling water precooling system, which specifically includes the following steps:
the proportion of the cold quantity of the precooling surface cooling section of the precise air conditioner to the rated refrigerating quantity can be comprehensively considered by combining the local requirements on PUE, the size of the precise air conditioner, the power consumption increase caused by the increase of the wind resistance after the precooling surface cooling section is increased, and the like. For example, the requirement on PUE is strict locally, the proportion of the cold quantity of the pre-cooling surface cooling section is as large as possible (such as 100%), the power consumption of the precision air conditioner is increased as small as possible after the pre-cooling surface cooling section is added, the size of the corresponding precision air conditioner is increased, and the cost is increased more; if the PUE has no special requirements, the internal space can be optimized in a precision air conditioner with a standard model to increase a precooling surface cooling section, the cold quantity proportion of the corresponding precooling surface cooling section is low, the cost is increased a little, and the power consumption of the precision air conditioner is increased a little.
When the proportion of the precision air conditioner with the pre-cooling surface cooling section in all the precision air conditioners is higher, the first pre-cooling valve and the second pre-cooling valve of the pre-cooling valves are both in an electric switch type; when the percentage of the precision air conditioner with the pre-cooling surface cooling section in all the precision air conditioners is low, the first pre-cooling valve and the second pre-cooling valve of the pre-cooling valves are both in an electric adjusting type, and the flow entering the pre-cooling plate for exchanging is controlled by adjusting the opening degrees of the two valves, so that the energy consumption of the system is reduced.
The cooling water precooling system is only used for further energy-saving application, and the normal operation of the system is not influenced even if the system is quitted, namely, the redundancy of equipment and pipelines is not considered during actual application.
Control method of cooling water precooling system
The core of the control method is to determine the set temperature of the cooling water when the pre-cooling system is put into operation, and the basic principle of the set temperature is that the power consumption of the refrigeration system is not increased after the pre-cooling system is put into operation. Namely, the reduced power consumption of the cold machine is not less than the increased power consumption of the pre-cooling water circulating pump and the pre-cooling plate cooling exchange side.
According to the research on the cold quantity calculation method during the dry working condition running of the fan coil in the literature, the actual cold quantity of the surface cooling section is approximate to that of the surface cooling section under the condition that the air quantity and the water quantity of the surface cooling section are unchanged:
wherein, Q 0 Is the cold quantity under the actual and sample working conditions, T 1 ,T 1 0 The inlet air temperature under actual working conditions and sample working conditions respectivelyDegree, T w1 ，T w1 0 The temperature of the inlet water is the actual temperature and the sample temperature.
The initial setting may be calculated as the cooling water setting temperature calculation formula according to formula 1-1 as follows:
the left side of the formula is used for reducing the load of the cold machine, and the right side of the formula is used for increasing the power consumption of the precooling water circulating pump and the precooling plate cooling exchange side.
After the initial cooling water set temperature is set, the cooling water set temperature when the system is put into operation is adjusted manually or automatically according to actual power consumption. The principle is as follows: after the precooling mode is put into use, the energy consumption of the cooling system is increased, and then the set temperature of the cooling water is reduced; otherwise, the set temperature of the cooling water is increased.
Calculating a case:
the temperature of chilled water supply and return water of a certain data center is 15 ℃/21 ℃, and COP is 7 under a rated working condition;
the return air temperature of the chilled water type precision air conditioner with the pre-cooling surface cooling section is 24 ℃/36 ℃, the ratio of the cold quantity of the pre-cooling surface cooling section of the precision air conditioner to the rated refrigerating capacity is 100%, and the working condition inlet water temperature of the pre-cooling surface cooling section is 15 ℃;
the temperature difference of the plate is 1.5 ℃;
the COP of the pre-cooling water circulating pump is 50, and the COP of the pre-cooling plate is 120;
summer working condition of the cooling tower: the inlet and outlet water temperature is 39 ℃/33 ℃, the wet bulb temperature is 31 ℃, the inlet and outlet water temperature is 18.8 ℃/13.5 ℃ under the winter working condition, and the wet bulb temperature is 8 ℃.
In the traditional mode, when the temperature of cooling water is higher than 19.5 ℃ (the corresponding outdoor wet bulb temperature is about 15.1 ℃), the mechanical refrigeration is completely carried out; the cooling water is partially naturally cooled when the temperature is lower than 19.5 ℃ and higher than 13.5 ℃ (corresponding to the outdoor wet bulb temperature of about 8 ℃); when the temperature of the cooling water is lower than 13.5 ℃, the cooling water is completely and naturally cooled.
The set temperature of the cooling water when the cooling water is precooled and put into the cooling water is 30.3 ℃ and the corresponding outdoor wet bulb temperature is about 27.8 ℃ according to the calculation of the formula 1-1.
Taking Nanjing as an example, the complete mechanical refrigeration time is 3860 hours in a traditional mode within one year; the partial natural cooling time period was 1811h, and the complete natural cooling time period was 3089h. When a cooling water precooling mode is adopted, the annual wet bulb temperature exceeds 27.8 ℃ and only remains 67h, namely the mechanical refrigeration time length is reduced by 3793h to 67h, and the partial natural cooling time length is increased by 3793h to 5604h. The energy-saving effect is obvious.
Technical advantages
1: the cold energy of the cooling water is fully utilized, the cooling water is utilized for precooling, and the utilization time of a part of natural cooling modes of the water cooling cold water system is prolonged.
2: a corresponding precooling input and exit control method is provided.
3: further reduce data center PUE, the southern area of future continues to use water-cooling cold water system also can satisfy the latest relevant requirement of country.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The cooling water precooling system is characterized by comprising a cooling water circulation pipeline, an air conditioner, a cooling tower, a cooling water circulation pump, a water chilling unit, a first plate heat exchanger and a second plate heat exchanger, wherein the cooling tower, the cooling water circulation pump, the water chilling unit, the first plate heat exchanger and the second plate heat exchanger are connected in series through the cooling water circulation pipeline and are sequentially arranged from upstream to downstream;
the cooling water precooling system further comprises a precooling water circulating pump and a precooling water circulating pipeline, and the precooling water circulating pump, the first plate heat exchanger and the precooling surface cooling section are sequentially connected in series through the precooling water circulating pipeline from the upstream to the downstream.
2. The cooling water precooling system of claim 1, further comprising a first precooling valve and a first branch, wherein the first plate heat exchanger includes a cooling water inlet and a cooling water outlet, one end of the first branch is connected to the cooling water inlet, the other end of the first branch is connected to the cooling water outlet, and the first precooling valve is installed on the first branch.
3. The cooling water precooling system of claim 2, further comprising a second precooling valve, wherein a branch formed by the second precooling valve and the first plate heat exchanger in series is connected in parallel with the first branch.
4. The chilled water precooling system of claim 3, further comprising a third precooling valve, wherein the third precooling valve is mounted to the precooling water circulation line.
5. The cooling water precooling system of claim 3, wherein the first plate heat exchanger, the precooling water circulating pump, the precooling surface cooling section, the first precooling valve and the second precooling valve, which are all connected to the first plate heat exchanger, together form a precooling unit, and the cooling water precooling system comprises a plurality of precooling units.
6. The cooling water precooling system of claim 2, further comprising a second branch, a second branch control valve, and a third branch control valve, wherein a branch formed by the third branch control valve connected in series with the second plate heat exchanger is connected in parallel with the second branch, and the second branch control valve is installed in the second branch.
7. The cooling water precooling system of claim 2, further comprising a third branch, a fourth branch control valve, and a fifth branch control valve, wherein a branch formed by the fifth branch control valve connected in series with the chiller is connected in parallel with the fourth branch, and the fourth branch control valve is mounted on the fourth branch.
8. The cooling water precooling system according to any one of claims 1 to 7, further comprising a chilled water circulation unit, wherein the chilled water circulation unit comprises a chilled water circulation pipeline, a chilled water primary circulation pump and a chilled water secondary circulation pump, the air conditioner further comprises a surface cooling section, and the precooling surface cooling section is located at a downstream of the surface cooling section.
9. The cooling water precooling system according to claim 8, wherein the chilled water primary circulation pump, the second plate heat exchanger, the water chilling unit, the chilled water secondary circulation pump and the surface cooling section are sequentially connected in series through the chilled water circulation pipeline.
10. The chilled water precooling system of claim 9, further comprising an accumulator tank mounted to the chilled water circulation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222806592.9U CN218570763U (en) | 2022-10-24 | 2022-10-24 | Cooling water precooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222806592.9U CN218570763U (en) | 2022-10-24 | 2022-10-24 | Cooling water precooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218570763U true CN218570763U (en) | 2023-03-03 |
Family
ID=85318096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222806592.9U Active CN218570763U (en) | 2022-10-24 | 2022-10-24 | Cooling water precooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218570763U (en) |
-
2022
- 2022-10-24 CN CN202222806592.9U patent/CN218570763U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203147921U (en) | Water chilling unit energy saving system | |
| WO2020037843A1 (en) | Air conditioner cooling water system for multi-stage cooling and cascade utilization of terminal energy | |
| CN202002246U (en) | Natural cooling cold water unit | |
| CN108834366B (en) | Air conditioning system of data machine room | |
| CN106152341A (en) | A kind of double low-temperature receiver multi-state chilled water storage system | |
| CN110131816B (en) | Auxiliary machinery refrigerated water side evaporative cooling system | |
| CN106440437A (en) | Novel natural cooling resource refrigerating system and control method thereof | |
| CN106765783B (en) | Energy-saving high-precision wine cellar air conditioning system combining water cold accumulation and natural cold source | |
| CN102889650A (en) | Integral combination type computer room air conditioning unit and control method thereof | |
| CN202002247U (en) | Natural cooling type air conditioning unit | |
| CN105115079A (en) | Water cold storage system of central air conditioner | |
| CN203163566U (en) | Anti-condensation refrigerant circulation heat pipe system | |
| CN206514574U (en) | A kind of data center's refrigeration system | |
| CN209214037U (en) | A kind of Water cooled air conditioners circulation energy-saving system for large-scale data center cooling | |
| CN218570763U (en) | Cooling water precooling system | |
| CN106949585A (en) | A kind of computer-room air conditioning system | |
| CN217763695U (en) | Refrigerating system | |
| CN205783485U (en) | A kind of double low-temperature receiver multi-state chilled water storage system | |
| CN203364293U (en) | Indoor and outdoor air heat exchange device for data center machine room | |
| CN216123342U (en) | Data center mixes cold source economizer system | |
| CN210089032U (en) | Air conditioning system combining mechanical refrigeration and water side evaporative cooling technology | |
| KR20210038458A (en) | Refrigeration system | |
| CN203163134U (en) | Energy-saving water-cooling heat-pump air-conditioning device | |
| CN208794579U (en) | A kind of Summer and winter switching energy-saving freezing water system | |
| CN112367802A (en) | Evaporative cooling modular water-cooled air conditioning unit for data center and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |