Double-cold-source water-cooling backboard air conditioner

Abstract

The utility model discloses a double-cold-source water-cooling backboard air conditioner. The double-cold-source water-cooling backboard air conditioner comprises an air conditioner shell, a control mainboard, an operation screen, two heat exchange coils arranged in the air conditioner shell and a plurality of fans arranged on the outer side of the air conditioner shell. Each heat exchange coil pipe is connected with a freezing water pipe group; each chilled water pipe group comprises a chilled water inlet pipe and a chilled water outlet pipe; the operation screen is used for displaying and setting operation parameters of the backboard air conditioner; the control mainboard is used for regulating and controlling operation parameters; and the fan is used for blowing hot air generated by electronic equipment in the cabinet to the heat exchange coil pipe, so that chilled water in the heat exchange coil pipe cools the hot air. According to the technical scheme provided by the embodiment of the utility model, the two external cold sources are directly connected with the two different heat exchange coils to exchange heat with hot air in the cabinet, so that the energy efficiency of the air conditioning refrigeration system is improved, the problem of downtime of IT equipment of the cabinet caused by faults of a single cold source is solved, and safe and stable operation of equipment in a machine room is guaranteed to the greatest extent.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a dual-source water-cooled backplate air conditioner. Background Technology

[0002] As the power consumption of IT (Information Technology) equipment in data centers gradually increases, the heat dissipation of server racks also increases, placing higher demands on the cooling safety and stability of data center air conditioners.

[0003] Currently, the air conditioning products used in data centers are typically single-coil backplane air conditioners installed at the back of the server racks. These single-coil backplane air conditioners lose their cooling source if the external cooling source is interrupted or the coil malfunctions, causing the server rack to overheat or IT equipment to crash, thus reducing equipment operational stability. Utility Model Content

[0004] This utility model provides a dual-source water-cooled backplate air conditioner, which uses two water-cooled sources to directly exchange heat with the hot air inside the cabinet through different heat exchange coils, thereby improving heat exchange efficiency, reducing costs, and ensuring the stability of equipment operation.

[0005] According to one aspect of this utility model, a dual-source water-cooled back-panel air conditioner is provided, comprising: an air conditioner housing, a control main board, an operation panel, two heat exchange coils disposed within the air conditioner housing, and multiple fans disposed outside the air conditioner housing; wherein,

[0006] Each of the heat exchange coils is connected to a chilled water pipe assembly; each chilled water pipe assembly includes a chilled water inlet pipe and a chilled water outlet pipe;

[0007] The operation panel is used to display and set the operating parameters of the rear air conditioner;

[0008] The control motherboard is used to receive cooling demand information and adjust the operating parameters based on the cooling demand information;

[0009] The fan is used to blow hot air generated by the electronic equipment in the cabinet onto the heat exchange coil, so that the chilled water in the heat exchange coil cools the hot air.

[0010] Optionally, the heat exchange coil has internal threaded interfaces at the chilled water inlet and outlet, which are connected to the chilled water pipeline of an external cold source.

[0011] Optionally, the chilled water in the heat exchange coil cools the hot air inside the cabinet, then flows out of the back panel air conditioner and returns to the chilled water pipeline to complete the circulation.

[0012] Optionally, the heat exchange coil is a copper tube, and corrugated hydrophilic fins are expanded to the outside of the heat exchange coil to ensure close contact between the copper tube and the corrugated hydrophilic fins.

[0013] Optionally, each of the chilled water outlet pipes is equipped with an electric two-way valve;

[0014] The control motherboard is used to control the valve opening of the electric two-way valve based on the cooling demand information, so as to adjust the flow rate of chilled water entering the back panel air conditioner, control the heat exchange between chilled water and hot air, and control the outlet air temperature of the back panel air conditioner.

[0015] Optionally, the operation screen is a color touch screen.

[0016] Optionally, the fan is a DC-driven fan.

[0017] Optionally, the dual-source water-cooled back panel air conditioner further includes a back panel, which is connected to the cabinet via a hinge.

[0018] The technical solution of this utility model embodiment includes a dual-source water-cooled backplane air conditioner comprising an air conditioner housing, a control main board, an operation panel, two heat exchange coils disposed within the air conditioner housing, and multiple fans disposed outside the air conditioner housing. Each heat exchange coil is connected to a chilled water pipe group. Each chilled water pipe group includes a chilled water inlet pipe and a chilled water outlet pipe. The operation panel is used to display and set the operating parameters of the backplane air conditioner. The control main board is used to receive cooling demand information and adjust the operating parameters based on the cooling demand information. The fans are used to blow hot air generated by electronic equipment in the cabinet connected to the dual-source water-cooled backplane air conditioner onto the heat exchange coils, so that the chilled water in the heat exchange coils cools the hot air. This solves the problem of existing single-coil backplane air conditioners, where a failure of one cooling source causes the cabinet to shut down. This dual-source water-cooled backplane air conditioner can achieve cooling and temperature reduction of the cabinet by absorbing the heat from the electronic equipment in the cabinet through two heat exchange coils from two different cooling sources, ensuring the safe and stable operation of the cabinet equipment. Meanwhile, the chilled water directly exchanges heat with the hot air inside the cabinet through the heat exchange coil, eliminating intermediate heat exchange links, which improves heat exchange efficiency and reduces equipment costs.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a dual-cold-source water-cooled backplate air conditioner according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a structural schematic diagram of a dual-cold-source water-cooled backplate air conditioner provided according to Embodiment 1 of this utility model. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] Example 1

[0026] Figure 1 This is a structural schematic diagram of a dual-source water-cooled backplate air conditioner according to Embodiment 1 of this utility model. This embodiment can be applied to situations where a dual-source water-cooled backplate air conditioner is used to cool and reduce the temperature of electronic equipment in a cabinet.

[0027] like Figure 1As shown, the dual-source water-cooled backplate air conditioner provided in this embodiment includes: an air conditioner housing, a control main board, an operation panel 10, two heat exchange coils disposed in the air conditioner housing, and multiple fans 20 disposed on the outside of the air conditioner housing; wherein, the two heat exchange coils include heat exchange coil 30 and heat exchange coil 31.

[0028] Each heat exchange coil is connected to a chilled water pipe group; heat exchange coil 30 is connected to chilled water pipe group 40. Heat exchange coil 30 is connected to chilled water pipe group 41. Each chilled water pipe group includes a chilled water inlet pipe and a chilled water outlet pipe; that is, each heat exchange coil is connected to a chilled water inlet pipe and a chilled water outlet pipe.

[0029] The control panel 10 is used to display and set the operating parameters of the rear air conditioner;

[0030] The control board is used to receive cooling demand information and adjust the operating parameters based on the cooling demand information;

[0031] Fan 20 is used to blow hot air generated by electronic equipment in cabinet 50, which is connected to dual-source water-cooled back panel air conditioner, onto heat exchange coils so that the chilled water in the heat exchange coils cools the hot air.

[0032] The fans can be DC (Direct Current) driven fans to achieve stepless speed adjustment. There are ten fans. Electronic equipment can be IT equipment such as servers, switches, routers, wireless devices, memory, distribution boxes, monitoring equipment, etc., with no restrictions on the type of electronic equipment. Operating parameters include, but are not limited to, inlet and outlet air temperatures, inlet and outlet water temperatures, two-way valve opening, fan speed, various alarm messages, and historical operating data. The control panel is a color touchscreen.

[0033] In this embodiment, the dual-source water-cooled backplane air conditioner can be installed at the rear door of the cabinet 50. Optionally, the dual-source water-cooled backplane air conditioner includes a backplane, which is connected to the cabinet 50 via a hinge, allowing the dual-source water-cooled backplane air conditioner and the cabinet 50 to be tightly connected via the hinge. All operating parameters of the dual-source water-cooled backplane air conditioner are transmitted to the operation screen 10 for display, where users can set specific values ​​for various operating parameters. The specific values ​​of the operating parameters set by the user are the cooling demand information. After receiving the cooling demand information, the control motherboard can adjust the operating parameters of the dual-source water-cooled backplane air conditioner in real time based on the cooling demand information. When the fan 20 is running, the hot air generated by the electronic equipment in the cabinet 50 connected to the dual-source water-cooled backplane air conditioner is forced to exchange heat with the chilled water in the heat exchange coil under the drive of the fan 20, thereby achieving the purpose of cooling the hot air. The fan 20 blows the cooled air to the outside of the air conditioner casing, completing the heat dissipation and cooling of the cabinet 50.

[0034] Based on the above technical solution, the heat exchange coil can be made of copper tube, and corrugated hydrophilic fins are expanded on the outside of the heat exchange coil to make close contact between the copper tube and the corrugated hydrophilic fins, thereby improving the heat exchange efficiency between chilled water and air in the heat exchange coil.

[0035] Based on the above technical solution, the heat exchange coil has internal threaded interfaces at the chilled water inlet and outlet, which are connected to the chilled water pipeline of the external cold source through the threaded interfaces.

[0036] Based on the above technical solution, the chilled water in the heat exchange coil cools the hot air inside the cabinet 50, then flows out of the back panel air conditioner and returns to the chilled water pipeline to complete the circulation.

[0037] This can be understood as follows: chilled water from an external cold source flows into the heat exchange coil through chilled water piping. The chilled water in the heat exchange coil cools the hot air within the cabinet 50. The chilled water, having absorbed heat in the heat exchange coil, flows back into the chilled water piping, completing the circulation. The advantage of this setup is that the circulating chilled water continuously removes heat from the cabinet, ensuring the equipment operates at a suitable temperature, while also saving energy.

[0038] Based on the above technical solutions, please refer to [link / reference]. Figure 1 Each chilled water pipe in each chilled water pipe assembly is equipped with an electric two-way valve 60. The control board is used to control the valve opening of the electric two-way valve 60 based on the cooling demand information, so as to regulate the flow rate of chilled water entering the back panel air conditioner, control the heat exchange between chilled water and hot air, and thus control the outlet air temperature of the back panel air conditioner.

[0039] In this embodiment, the control motherboard can adjust the valve opening of the electric two-way valve 60 and the speed of the fan 20 on the chilled water outlet pipe in real time according to the temperature parameters (i.e., cooling demand information) set by the user, thereby controlling the flow rate of chilled water entering the back panel air conditioner and the air volume of hot air exchanging heat with the coil, and thus realizing the dynamic adjustment of the cooling capacity of the back panel air conditioner according to the cooling demand.

[0040] The technical solution of this utility model embodiment involves setting two independent heat exchange coils in a dual-source water-cooled backplane air conditioner. During operation, the two heat exchange coils are connected to chilled water from different sources, achieving independent operation of the two air conditioners while improving the safety and stability of the computer room air conditioning operation. Simultaneously, by directly exchanging heat between the dual water sources and the hot air inside the rack 50 through different heat exchange coils, eliminating intermediate heat exchangers and refrigerant heat exchange links, high cooling efficiency is achieved while reducing costs and facilitating maintenance. This meets the heat dissipation requirements of the rack 50 and ensures the safety and stability of its operation.

[0041] Next, to further clarify the technical solutions of the embodiments of this utility model for those skilled in the art, specific application scenario examples are provided. See, for example... Figure 2 The dual-source water-cooled backplane air conditioner shown includes heat exchange coil A and heat exchange coil B. Chilled water pipe group A is connected to heat exchange coil A, and its chilled water inlet pipe supplies chilled water to heat exchange coil A. Chilled water pipe group B is connected to heat exchange coil B, and its chilled water inlet pipe supplies chilled water to heat exchange coil B. Low-temperature air enters cabinet 50. High-temperature air generated by electronic equipment is cooled by the chilled water in heat exchange coil A or heat exchange coil B, becoming low-temperature air, thus completing the heat dissipation cycle of cabinet 50.

[0042] The technical solution provided in this embodiment allows for simultaneous and independent operation of two heat exchange coils when the external chilled water supply from both sources is normal and the back panel air conditioner is functioning properly. The fan operates at its rated speed, and both heat exchange coils simultaneously bear part of the load on the cabinet, completing the cooling and heat dissipation of the cabinet 50 and meeting its cooling and heat dissipation requirements. If a chilled water supply (chilled water pipe group 40 or chilled water pipe group 41) is interrupted during use, or if one of the heat exchange coils (heat exchange coil 30 or heat exchange coil 31) is damaged, the other heat exchange coil can still operate normally due to the independence of the two heat exchange coils, ensuring the safe and stable operation of the cabinet.

[0043] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A dual-source water-cooled backplate air conditioner, characterized in that, include: The air conditioner housing, control main board, operation panel, two heat exchange coils installed in the air conditioner housing, and multiple fans installed on the outside of the air conditioner housing; wherein, Each of the heat exchange coils is connected to a chilled water pipe assembly; each chilled water pipe assembly includes a chilled water inlet pipe and a chilled water outlet pipe; The operation panel is used to display and set the operating parameters of the rear air conditioner; The control motherboard is used to receive cooling demand information and adjust the operating parameters based on the cooling demand information; The fan is used to blow hot air generated by electronic equipment in the cabinet connected to the dual-source water-cooled backplane air conditioner onto the heat exchange coil, so that the chilled water in the heat exchange coil cools the hot air.

2. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, The heat exchange coil has internal threaded interfaces at the chilled water inlet and outlet, which are connected to the chilled water pipeline of an external cold source.

3. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, The chilled water in the heat exchange coil cools the hot air inside the cabinet, then flows out of the back panel air conditioner and returns to the chilled water pipeline to complete the circulation.

4. The dual-source water-cooled backplate air conditioner according to any one of claims 1-3, characterized in that, The heat exchange coil is made of copper tube, and corrugated hydrophilic fins are expanded to the outside of the heat exchange coil to ensure close contact between the copper tube and the corrugated hydrophilic fins.

5. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, The operating screen is a color touch screen.

6. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, Each chilled water outlet pipe is equipped with an electric two-way valve; The control motherboard is used to control the valve opening of the electric two-way valve based on the cooling demand information, so as to adjust the flow rate of chilled water entering the back panel air conditioner, control the heat exchange between chilled water and hot air, and control the outlet air temperature of the back panel air conditioner.

7. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, The fan is a DC-driven fan.

8. The dual-source water-cooled backplate air conditioner according to claim 1, characterized in that, The dual-source water-cooled back panel air conditioner also includes a back panel, which is connected to the cabinet via a hinge.

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