Cooling system
By supplying cooling water from the cooling water tank directly to the chiller in the cooling system and combining the circulation design of the cooling pump unit and the cooling tower, the problem of insufficient cooling capacity of the cooling tower is solved, and the temperature of the chiller is significantly reduced, thereby reducing energy consumption.
Patent Information
- Application Number
- CN202422868057.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the summer when wet-bulb temperatures are high, the cooling capacity of the cooling tower is limited, making it difficult to lower the temperature of the chiller, resulting in increased chiller load, increased energy consumption and possible shutdown.
A cooling system was designed to directly supply 17-18 degree cooling water to the chiller through a cooling water tank. Combined with the connection of a cooling pump unit with multiple cooling towers and chillers, the cooling water can be recycled and the temperature of the chiller can be significantly reduced.
It effectively reduces the temperature and condensing pressure of the chiller, reduces energy consumption, avoids shutdown problems caused by excessive temperature, and saves refrigeration costs.
Smart Images
Figure CN223360968U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of equipment cooling, and in particular to a cooling system. Background Art
[0002] The water temperature provided by the municipal water supply company to the cooling water tank is constant at about 17-18 degrees throughout the year. The cooling water in the cooling water tank is then pumped to the cooling tower through a cooling pump, and the cooling tower replenishes water to the chiller.
[0003] In the summer, when the wet-bulb temperature is too high, the cooling tower's working capacity is limited, and the temperature of the chiller in the chiller unit is difficult to drop, resulting in an increase in the chiller load. This not only wastes electricity, but also causes the chiller to shut down when the temperature reaches the limit.
[0004] How to effectively reduce the temperature of the chiller is a technical problem that needs to be solved at present. Utility Model Content
[0005] The purpose of the embodiments of the present application is to provide a cooling system to solve the problem that the temperature of a chiller is difficult to reduce in summer.
[0006] In order to solve the above technical problems, this specification is implemented as follows:
[0007] In a first aspect, a cooling system is provided, comprising a cooling water tank, a cooling pump unit, a cooling tower and a chiller.
[0008] The water outlet of the cooling water tank is connected to the water inlet of the cooling pump unit, and the cooling water tank is used to provide cooling water to the cooling pump unit; the water outlet of the cooling pump unit is respectively connected to the water inlets of multiple cooling towers and the water inlets of multiple chillers, and the cooling pump unit is used to provide cooling water to each cooling tower and each chiller respectively; the chiller includes multiple chillers, and the chiller is used to reduce the temperature of the target equipment; the water outlet of each cooling tower is respectively connected to the water inlet of each chiller one by one, and the cooling tower is used to circulate the inflowing cooling water into the corresponding connected chiller.
[0009] Optionally, the cooling pump unit includes a first cooling pump,
[0010] The water inlet of the first cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the first cooling pump is connected to the water inlets of multiple cooling towers through a first pipe to provide cooling water to each cooling tower;
[0011] The water outlet of the first cooling pump is also connected to a second pipe through the first pipe, and the second pipe is connected to the water inlets of multiple chillers to provide cooling water to each chiller.
[0012] Optionally, the second pipe includes a second main pipe and multiple second branch pipes, the first end of the second main pipe is connected to the first pipe, the second end of the second main pipe is connected to the first end of each second branch pipe, and the second end of each second branch pipe is connected to the water inlet of the corresponding chiller.
[0013] Optionally, the first end of the second main pipeline is connected to the first pipeline by welding.
[0014] Optionally, a one-way valve is further included, and the one-way valve is respectively arranged between the second end of each second branch pipe and the water inlet of the corresponding connected chiller.
[0015] Optionally, the cooling pump unit includes a first cooling pump and a second cooling pump,
[0016] The water inlet of the first cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the first cooling pump is connected to the water inlets of multiple cooling towers through a first pipe to provide cooling water to each cooling tower;
[0017] The water inlet of the second cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the second cooling pump is connected to the water inlets of multiple chillers through a third pipe to provide cooling water to each chiller.
[0018] Optionally, the third pipeline includes a third main pipeline and multiple third branch pipelines, the first end of the third main pipeline is connected to the water outlet of the second cooling pump, the second end of the third main pipeline is connected to the first end of each third branch pipeline, and the second end of each third branch pipeline is connected to the water inlet of the corresponding chiller.
[0019] Optionally, a one-way valve is further included, and the one-way valve is respectively arranged between the second end of each third branch pipe and the water inlet of the corresponding connected chiller.
[0020] Optionally, the second cooling pump is a constant pressure water supply cooling pump or a variable frequency water supply cooling pump.
[0021] Optionally, the first pipeline includes a first main pipeline and a plurality of first branch pipelines, the first end of the first main pipeline is connected to the water outlet of the first cooling pump, the second end of the first main pipeline is connected to the first end of each first branch pipeline, and the second end of each first branch pipeline is connected to the water inlet of the corresponding cooling tower; or
[0022] The first cooling pump includes a main variable frequency water supply cooling pump and a backup variable frequency water supply cooling pump. The water outlet of the main variable frequency water supply cooling pump and the water outlet of the backup variable frequency water supply cooling pump are switched and connected to the first end of the first main pipeline through a main valve provided on the first main pipeline.
[0023] In an embodiment of the present application, the cooling system includes a cooling water tank, a cooling pump unit, a cooling tower and a chiller. The cooling water tank is used to provide cooling water to the cooling pump unit; the chiller includes multiple chillers, and the chiller is used to reduce the temperature of the target equipment; the water inlet of the cooling pump unit is connected to the water outlet of the cooling water tank, and the water outlet of the cooling pump unit is respectively connected to the water inlets of multiple cooling towers and the water inlets of multiple chillers, and the cooling pump unit is used to provide cooling water to each cooling tower and each chiller respectively; a chiller The water outlet of the cooling tower is connected to the water inlet of a chiller, and each cooling tower is used to circulate the incoming cooling water into the corresponding connected chiller. The cooling system of the embodiment of the present application directly provides a portion of the cooling water from the cooling water tank to each chiller. The temperature of the cooling water is significantly lower than the water temperature provided to the chiller by the cooling tower, thereby effectively lowering the temperature of the chiller, reducing the condensing pressure of the chiller, and reducing the load of the chiller at the same time, thereby significantly reducing the energy consumption of the chiller, saving cooling costs, and avoiding the shutdown problem of the chiller due to the temperature reaching the limit. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0025] Figure 1 It is a block diagram of the overall structure of the cooling system of an embodiment of the present application.
[0026] Figure 2 It is a structural block diagram of the cooling system of the first embodiment of the present application.
[0027] Figure 3 It is a structural block diagram of the cooling system of the second embodiment of the present application. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The figure numbers in this application are only used to distinguish the various steps in the scheme and are not used to limit the execution order of the various steps. The specific execution order is subject to the description in the specification.
[0029] In order to solve the problems existing in the prior art, the present invention provides a cooling system. Figure 1As shown, it includes a cooling water tank 1200, a cooling pump unit 1400, a cooling tower 1600 and a chiller 1800, the water outlet of the cooling water tank 1200 is connected to the water inlet of the cooling pump unit, and the cooling water tank 1200 is used to provide cooling water to the cooling pump unit 1400; the water outlet of the cooling pump unit 1400 is respectively connected to the water inlets of multiple cooling towers 1600 and the water inlets of multiple chillers, and the cooling pump unit 1400 is used to provide cooling water to each cooling tower 1600 and each chiller respectively; the chiller 1800 includes multiple chillers, and the chiller 1800 is used to reduce the temperature of the target equipment; the water outlet of each cooling tower 1600 is respectively connected to the water inlet of each chiller one by one, and the cooling tower is used to circulate the inflowing cooling water into the corresponding connected chiller.
[0030] Cooling water tank 1200 is supplied by a municipal water company, which maintains a constant water temperature of approximately 17-18°C year-round. A cooling pump unit 1400 delivers cooling water from cooling water tank 1200 to a cooling tower 1600 and a chiller 1800. Chiller 1800 includes multiple chillers used to cool or refrigerate equipment such as air conditioners and cabinets.
[0031] In the embodiment of the present application, the cooling pump unit 1400 can provide cooling water to the chiller 1800 through the cooling tower 1600. The chiller 1800 includes multiple chillers, and the cooling system correspondingly includes multiple cooling towers 1800. One cooling tower 1600 is connected to one chiller in the chiller 1800 in a one-to-one correspondence. The cooling water flows from top to bottom through the cooling tower 1600, and a fan is provided above the cooling water to cool it. After flowing to the lower tower, it is provided to the chiller through the water inlet of the corresponding chiller to perform work. The water that enters the chiller and is cooled after performing work returns to the top of the cooling tower 1600 and flows down. This cycle provides cold water for the corresponding connected chiller.
[0032] At the same time, the cooling pump unit 1400 is also directly connected to the water inlet of each chiller in the chiller group 1800, and directly provides the cooling water of 17-18 degrees in the cooling water tank 1200 to each chiller.
[0033] In the case of excessively high wet-bulb temperatures in the summer, due to the limited work capacity of the cooling tower 1600, it is difficult to reduce the temperature of the corresponding chiller through the cooling tower 1600. For example, when the wet-bulb temperature is higher than 20 degrees, the lowest temperature of the lower tower of the cooling tower 1600 after cooling by the fan is still 23-24 degrees. In this way, the cooling system of the embodiment of the present application directly provides a portion of the cooling water of 17-18 degrees in the cooling water tank 1200 to each chiller. The temperature of the cooling water is significantly lower than the water temperature provided to the chiller by the lower tower of the cooling tower 1600, which can effectively reduce the temperature of the chiller, thereby reducing the condensing pressure of the chiller and reducing the load of the chiller at the same time, thereby significantly reducing the energy consumption of the chiller, saving refrigeration costs, and avoiding the shutdown problem of the chiller due to the temperature reaching the limit.
[0034] In the embodiment of the present application, the cooling pump unit 1400 can use different solutions to provide the cooling water in the cooling water tank 1200 to each cooling tower 1800 and each chiller respectively.
[0035] Figure 2 This is a block diagram of the cooling system of the first embodiment of the present application. In this embodiment, Figure 2 The cooling pump unit 1400 includes a first cooling pump 1420, the water inlet of the first cooling pump 1420 is connected to the water outlet of the cooling water tank 1200, and the water outlet of the first cooling pump 1420 is connected to the water inlets of multiple cooling towers 1600 through a first pipe to provide cooling water to each cooling tower 1600; the water outlet of the first cooling pump 1420 is also connected to a second pipe through the first pipe, and the second pipe is connected to the water inlets of multiple chillers 1820 to provide cooling water to each chiller 1820.
[0036] Specifically, if Figure 2 As shown, the first pipeline includes a first main pipeline 120 and multiple first branch pipelines 140, the first end of the first main pipeline 120 is connected to the water outlet of the first cooling pump 1420, the second end of the first main pipeline 120 is connected to the first end of each first branch pipeline 140, and the second end of each first branch pipeline 140 is connected to the water inlet of the corresponding cooling tower 1600.
[0037] As a result, the cooling water in the cooling water tank 1200 flows into the first main pipeline 120 via the first cooling pump 1420. Part of the cooling water in the first main pipeline 120 can flow into the corresponding first branch pipelines 140 and be provided to the connected cooling towers 1600. The cooling water is then circulated through each cooling tower 1600 and provided to the corresponding chiller 1820.
[0038] Correspondingly, the second pipeline includes a second main pipeline 320 and multiple second branch pipelines 340, the first end of the second main pipeline 320 is connected to the first pipeline, the second end of the second main pipeline 320 is connected to the first end of each second branch pipeline 340, and the second end of each second branch pipeline 340 is connected to the water inlet of the corresponding chiller 1820.
[0039] The first end of the second main pipe 320 is connected to the first pipe by welding. Specifically, the second main pipe 320 is welded to the first main pipe 120, thereby allowing part of the cooling water flowing into the first main pipe 120 from the first cooling pump 1420 to flow into the second main pipe 320. The second main pipe 320 then directly supplies the cooling water to each chiller 1820 through the corresponding second branch pipes 340.
[0040] To prevent the cooling water from flowing back into the cooling water tank 1200 due to high water pressure on the side of the second main pipe 320, the cooling system also includes a one-way valve 30, which is respectively arranged between the second end of each second branch pipe 340 and the water inlet of the corresponding connected chiller 1820.
[0041] Figure 3 This is a block diagram of the cooling system of the second embodiment of the present application. In this embodiment, Figure 3 The cooling pump unit 1400 includes a first cooling pump 1420 and a second cooling pump 1440. The water inlet of the first cooling pump 1420 is connected to the water outlet of the cooling water tank 1200, and the water outlet of the first cooling pump 1420 is connected to the water inlets of multiple cooling towers 1600 through a first pipe to provide cooling water to each cooling tower 1600; the water inlet of the second cooling pump 1440 is connected to the water outlet of the cooling water tank 1200, and the water outlet of the second cooling pump 1440 is connected to the water inlets of multiple chillers 1820 through a third pipe to provide cooling water to each chiller 1820.
[0042] Specifically, if Figure 3 As shown, the first pipeline includes a first main pipeline 120 and multiple first branch pipelines 140, the first end of the first main pipeline 120 is connected to the water outlet of the first cooling pump 1420, the second end of the first main pipeline 120 is connected to the first end of each first branch pipeline 140, and the second end of each first branch pipeline 140 is connected to the water inlet of the corresponding cooling tower 1600.
[0043] As a result, part of the cooling water in the cooling water tank 1200 flows into the first main pipeline 120 via the first cooling pump 1420. The cooling water in the first main pipeline 120 can then flow into the corresponding first branch pipelines 140 and be supplied to the connected cooling towers 1600. The cooling water is then circulated through each cooling tower 1600 and supplied to the corresponding chiller 1820.
[0044] Correspondingly, the third pipeline includes a third main pipeline 520 and multiple third branch pipelines 540. The first end of the third main pipeline 520 is connected to the water outlet of the second cooling pump 1440, the second end of the third main pipeline 520 is connected to the first end of each third branch pipeline 540, and the second end of each third branch pipeline 540 is connected to the water inlet of the corresponding chiller 1820.
[0045] As a result, part of the cooling water in the cooling water tank 1200 flows into the third main pipe 520 through the second cooling pump 1440 , and the third main pipe 520 directly provides the cooling water to each chiller 1820 through the corresponding connected third branch pipes 540 .
[0046] In order to prevent the water pressure on the side of the third main pipeline 520 from being high and the cooling water from flowing back into the cooling water tank 1200, the cooling system also includes a one-way valve 30, which is respectively arranged between the second end of each third branch pipeline 540 and the water inlet of the corresponding connected chiller 1820.
[0047] In one embodiment, the second cooling pump 1440 is a constant pressure water supply cooling pump or a variable frequency water supply cooling pump.
[0048] Optionally, the first cooling pump 1420 includes a main variable frequency water supply cooling pump and a backup variable frequency water supply cooling pump, and the water outlet of the main variable frequency water supply cooling pump and the water outlet of the backup variable frequency water supply cooling pump are switched and connected to the first end of the first main pipeline 120 through a main valve set on the first main pipeline 120.
[0049] The first cooling pump 1420 supplying water to the cooling tower 1600 may include two cooling pumps, for example, two 4 kW variable frequency cooling pumps serving as backup for each other, supplying cooling water from the cooling water tank 1200 to each cooling tower 1800. By providing a main valve on the first main pipeline 120 of the first cooling pump 1420, each first branch pipeline can be selectively switched to connect to one of the cooling pumps.
[0050] In an embodiment of the present application, the cooling system includes a cooling water tank, a cooling pump unit, a cooling tower and a chiller. The water outlet of the cooling water tank is connected to the water inlet of the cooling pump unit, and the cooling water tank is used to provide cooling water to the cooling pump unit; the water outlet of the cooling pump unit is respectively connected to the water inlets of multiple cooling towers and the water inlets of multiple chillers, and the cooling pump unit is used to provide cooling water to each cooling tower and each chiller respectively; the chiller includes multiple chillers, and the chiller is used to reduce the temperature of the target equipment; the water outlet of each cooling tower is respectively connected to the water inlet of each chiller, and the cooling tower is used to circulate the inflowing cooling water into the corresponding connected chiller, thereby effectively reducing the temperature of the chiller, reducing the condensing pressure of the chiller, and reducing the load of the chiller at the same time, thereby significantly reducing the energy consumption of the chiller, saving cooling costs, and avoiding the shutdown problem of the chiller due to temperature reaching the limit.
[0051] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.
[0052] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A cooling system, characterized in that: Including cooling water tank, cooling pump unit, cooling tower and chiller, The water outlet of the cooling water tank is connected to the water inlet of the cooling pump unit, and the cooling water tank is used to provide cooling water to the cooling pump unit; The water outlet of the cooling pump unit is connected to the water inlet of multiple cooling towers and the water inlet of multiple chillers respectively, and the cooling pump unit is used to provide cooling water to each cooling tower and each chiller respectively; The chiller comprises a plurality of chillers, and the chiller is used to reduce the temperature of the target device; The water outlets of the cooling towers are connected to the water inlets of the chillers in a one-to-one correspondence. The cooling towers are used to circulate the incoming cooling water into the correspondingly connected chillers.
2. The cooling system according to claim 1, characterized in that The cooling pump unit includes a first cooling pump, The water inlet of the first cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the first cooling pump is connected to the water inlets of multiple cooling towers through a first pipe to provide cooling water to each cooling tower; The water outlet of the first cooling pump is also connected to a second pipe through the first pipe, and the second pipe is connected to the water inlets of multiple chillers to provide cooling water to each chiller.
3. The cooling system according to claim 2, characterized in that The second pipeline includes a second main pipeline and multiple second branch pipelines, the first end of the second main pipeline is connected to the first pipeline, the second end of the second main pipeline is connected to the first end of each second branch pipeline, and the second end of each second branch pipeline is connected to the water inlet of the corresponding chiller.
4. The cooling system according to claim 3, characterized in that The first end of the second main pipe is connected to the first pipe by welding.
5. The cooling system according to claim 3 or 4, characterized in that: It also includes a one-way valve, which is respectively arranged between the second end of each second branch pipe and the water inlet of the corresponding connected chiller.
6. The cooling system according to claim 1, wherein: The cooling pump unit includes a first cooling pump and a second cooling pump, The water inlet of the first cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the first cooling pump is connected to the water inlets of multiple cooling towers through a first pipe to provide cooling water to each cooling tower; The water inlet of the second cooling pump is connected to the water outlet of the cooling water tank, and the water outlet of the second cooling pump is connected to the water inlets of multiple chillers through a third pipe to provide cooling water to each chiller.
7. The cooling system according to claim 6, characterized in that The third pipeline includes a third main pipeline and multiple third branch pipelines. The first end of the third main pipeline is connected to the water outlet of the second cooling pump, the second end of the third main pipeline is connected to the first end of each third branch pipeline, and the second end of each third branch pipeline is connected to the water inlet of the corresponding chiller.
8. The cooling system according to claim 7, characterized in that It also includes a one-way valve, which is respectively arranged between the second end of each third branch pipe and the water inlet of the corresponding connected chiller.
9. The cooling system according to any one of claims 6 to 8, characterized in that The second cooling pump is a constant pressure water supply cooling pump or a variable frequency water supply cooling pump.
10. The cooling system according to claim 2 or 6, characterized in that: The first pipeline includes a first main pipeline and a plurality of first branch pipelines, wherein a first end of the first main pipeline is connected to a water outlet of the first cooling pump, a second end of the first main pipeline is connected to a first end of each first branch pipeline, and a second end of each first branch pipeline is connected to a water inlet of a corresponding cooling tower; or The first cooling pump includes a main variable frequency water supply cooling pump and a backup variable frequency water supply cooling pump. The water outlet of the main variable frequency water supply cooling pump and the water outlet of the backup variable frequency water supply cooling pump are switched and connected to the first end of the first main pipeline through a main valve provided on the first main pipeline.