Intelligent sensing cabinet with double-air-valve structure and air valve control system

Abstract

The invention discloses an intelligent sensing cabinet with a double-air-valve structure and an air valve control system, the intelligent sensing cabinet comprises a cabinet body, the cabinet body comprises a frame and a panel arranged on the outer side of the frame, an air valve I is arranged outside the frame, and an air valve II, an air return mechanism, a control mechanism and an alarm mechanism are arranged inside the frame; the system further comprises an air valve control system, the power of a single cabinet is defined as A, the real-time operation power of a total server of the single cabinet is defined as a, and a light load mode, a medium load mode, a heavy load mode and a super heavy load mode are divided by comparing A with a. Compared with the prior art, the cabinet has the advantages that multiple temperature control modes of a single cabinet are achieved, and a method that the adjustable air valve in the cabinet participates in air distribution and changes the return air temperature is innovatively provided; and the intelligent cabinet obtains at least more than 20% of adjustment capability exceeding the original load according to the adjustment strategy.

Description

Technical Field

[0001] The present invention relates to the field of intelligent cabinets and cabinet temperature control, and specifically refers to an intelligent sensing cabinet with a double air valve structure and an air valve control system. Background Art

[0002] At present, large-scale, high-density, and data-intensive data centers are becoming more and more popular. The heat dissipation problem in high-density server rooms is becoming more and more difficult to solve. The use of traditional precision air-conditioning systems results in huge energy consumption and high PUE values. Therefore, energy saving of air-conditioning systems is the core of overall energy saving in data centers. Reasonable design of cooling systems can ensure that the demand for electricity is minimized while meeting the cooling needs of data centers.

[0003] There are currently five basic cooling strategies used by high-density cabinets: load distribution, rule-based cooling capacity transfer, auxiliary cooling, setting up dedicated high-density areas, and whole-room cooling. However, the temperature control method for a single cabinet is too simple, the return air temperature of the cabinet cannot be automatically controlled, and the amount of cooling air cannot be automatically adjusted according to the actual needs of each cabinet, which leads to energy waste or failure to achieve cooling effects, and a single cabinet cannot be group-controlled according to temperature. Summary of the invention

[0004] The present invention aims to solve the above technical problems and provides an intelligent sensing cabinet and an air valve control system with a double air valve structure.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: an intelligent sensing cabinet with a double air valve structure, comprising a cabinet body, wherein the cabinet body comprises a frame and a panel arranged outside the frame, wherein an air valve 1 is arranged outside the frame, and an air valve 2 is arranged inside the frame;

[0006] The return air mechanism comprises a mounting frame and a return air fan;

[0007] The control mechanism includes a controller, which is arranged outside the cabinet, and a group control switch is arranged on the controller;

[0008] The alarm mechanism includes an alarm light and an emergency stop button.

[0009] Furthermore, the cabinet is a single-control cabinet, and multiple single-control cabinets are combined and connected through a controller;

[0010] Furthermore, the air valve 1 is a controllable ventilation floor, and the air valve 2 is a controllable opening air valve.

[0011] Furthermore, the return air mechanism also includes a plurality of return air temperature probes, and the return air temperature probes are arranged on the inner side of the panel.

[0012] Furthermore, the controller is connected to the electrical components inside the cabinet through a power line, and the controller is electrically connected to the air valve 1, the air valve 2, and the return air mechanism or is connected via a PDU current signal.

[0013] Furthermore, the group control switch is designed to have two states, ON and OFF, and is set according to the number of cabinets from the precision air conditioner.

[0014] A wind valve control system of an intelligent sensing cabinet with a double wind valve structure includes a cabinet body and a wind valve control system. The control method of the wind valve control system is as follows:

[0015] If the cabinet is next to the precision air conditioner, set the distance to 1. If the cabinet is one cabinet away from the precision air conditioner, set the distance to 2, and so on.

[0016] When the group control switch is OFF,

[0017] A single cabinet has three control variables:

[0018] 1. Variable 1: air valve opening P, set the minimum opening P0 = 0, the maximum opening P1;

[0019] 2. Variable 2: air valve opening Q, set the minimum opening Q0 = 0, the maximum opening Q1;

[0020] 3. Variable 3: Return air fan frequency R, set the minimum frequency R0 = 30Hz, the maximum frequency R1;

[0021] At the same time, the power of a single cabinet is defined as A, and the real-time operating power of the total server in a single cabinet is defined as a, where the real-time operating power is calculated by the intelligent PDU current signal;

[0022] When a single cabinet does not participate in cabinet group control, the control logic of the single cabinet is as follows:

[0023] 1. When the cabinet is not powered on: the return air fan stops, the air valve 1 opening P is 0, and the air valve 2 opening Q is 0;

[0024] 2. When the cabinet is powered on:

[0025] A. Light load mode (i.e. when a

[0026] The return air fan frequency R is set to the lowest frequency R0;

[0027] The air valve opening P is automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 33 degrees Celsius, that is, the opening P tracks the return air temperature of 33 degrees Celsius using the PID algorithm;

[0028] The second opening degree Q of the air valve is set to the minimum opening degree Q0; ​

[0029] B. Medium load mode (i.e. when 2*A / 3>a>=A / 2)

[0030] The return air fan frequency R and the air valve opening P are automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 33 degrees Celsius, that is, the opening P and the fan frequency R jointly track the return air temperature of 33 degrees Celsius using the PID algorithm;

[0031] The second opening degree Q of the air valve is set to the minimum opening degree Q0;

[0032] C. Overload mode (i.e. when A>a>=2*A / 3)

[0033] The air valve opening P is set to the maximum opening P1;

[0034] The return air fan frequency R and the air valve 2 opening Q are automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius, that is, the opening Q and the fan frequency R jointly track the return air temperature of 35 degrees Celsius using the PID algorithm;

[0035] D. Super heavy load mode (i.e. when 1.2*A>a>=A)

[0036] The opening degree P of air valve 1 is set to the maximum opening degree P1;

[0037] The opening Q of air valve 2 is set to the maximum opening Q1;

[0038] The return air fan frequency R is automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius, that is, the fan frequency R and the return air temperature of 35 degrees Celsius are tracked by the PID algorithm together;

[0039] When the group control switch is ON,

[0040] Assuming that the group control switch distance of this cabinet is greater than 2 and it is running in overload mode, the alarm light will be on.

[0041] The advantages of the present invention compared with the prior art are:

[0042] 1. It realizes multiple temperature control methods for a single cabinet, and innovatively proposes a method in which the adjustable air valve inside the cabinet participates in air volume distribution and changes the return air temperature.

[0043] 2. Achieve highly energy-saving cabinet return air temperature control, so that under low load conditions, the cabinet automatically senses and reduces the cold air input to the greatest extent.

[0044] 3. A damper is added to the front bottom of each cabinet. This damper can significantly reduce the return air temperature of the air conditioner, making the temperature distribution of the server more uniform, and saving more than 10% energy for each cabinet.

[0045] 4. Innovatively add a group control switch to a single cabinet, so that each cabinet can achieve the group control effect that can only be achieved by using a master controller with just one switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a cabinet structure schematic diagram of an intelligent sensing cabinet with a double air valve structure according to the present invention.

[0047] Figure 2 This is a single cabinet control diagram of an air valve control system of an intelligent sensing cabinet with a double air valve structure according to the present invention.

[0048] As shown in the figure: 1. Frame; 2. Panel; 3. Air valve 1; 4. Air valve 2; 5. Installation frame; 6. Return air fan; 7. Controller; 8. Group control switch; 9. Alarm light; 10. Emergency stop button; 11. Return air temperature probe. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] If the cabinet is next to the precision air conditioner, set the distance to 1. If the cabinet is one cabinet away from the precision air conditioner, set the distance to 2, and so on.

[0051] When the group control switch is OFF,

[0052] A single cabinet has three control variables:

[0053] 1. Variable 1: air valve opening P, set the minimum opening P0 = 0, the maximum opening P1;

[0054] 2. Variable 2: air valve opening Q, set the minimum opening Q0 = 0, the maximum opening Q1;

[0055] 3. Variable 3: Return air fan frequency R, set the minimum frequency R0 = 30Hz, the maximum frequency R1;

[0056] At the same time, the power of a single cabinet is defined as A, and the real-time operating power of the total server in a single cabinet is defined as a, where the real-time operating power is calculated by the intelligent PDU current signal;

[0057] Working principle:

[0058] The control logic of a single cabinet is as follows:

[0059] according to Figure 1A cabinet with a dual air valve structure and an intelligent sensing cabinet, wherein a controller is electrically connected to air valve 1, air valve 2, a return air fan, and a return air temperature probe or connected by PDU current signals, and the above electrical components are controlled separately, a plurality of return air temperature probes are provided, and are distributed at the upper, middle, and lower positions of the panel, for real-time monitoring of the temperature inside the cabinet, and information is exchanged with the controller in a wireless communication manner, air valve 1 is designed as a controllable ventilation floor, the size of a single air valve 1 matches the frame, and air valve 2 is a controllable opening air valve;

[0060] according to Figure 1 The position of each electrical component in Figure 2 A flow chart of the control system is given and applied to the controller. The specific steps are as follows:

[0061] When the group control switch is OFF;

[0062] First, define the power A of a single cabinet. The controller calculates the real-time operating power a of the cabinet through the PDU current signal, and compares the values ​​of a and A. When a

[0063] When 2*A / 3>a>=A / 2, the second air valve opening Q is set to the lowest opening Q0, and the return air fan frequency R and the first air valve opening P are automatically adjusted, so that the temperature data obtained by the return air temperature probe fluctuates around 33 degrees Celsius. At this time, it is the medium load mode;

[0064] When A>a>=2*A / 3, the opening degree P of air valve 1 is set to the maximum opening degree P1, and the return air fan frequency R and the opening degree Q of air valve 2 are automatically adjusted, so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius. At this time, it is in heavy load mode;

[0065] When 1.2*A>a>=A, the opening P of air valve 1 is set to the maximum opening P1, the opening Q of air valve 2 is set to the maximum opening Q1, and the return air fan frequency R is automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius. This is the overload mode.

[0066] When entering the heavy load or super heavy load mode, an alarm is sounded through the alarm mechanism and operation is performed through the controller or the emergency stop button.

[0067] As described above, due to the second internal air valve adjustment mechanism, the intelligent cabinet obtains an adjustment capability exceeding the original load by at least 20% according to the adjustment strategy.

[0068] When the group control switch is ON, ​

[0069] Assuming that the group control switch distance of this cabinet is greater than 2 and it is running in overload mode, the alarm light will be on, prompting the operation and maintenance personnel to reduce the load of this cabinet.

[0070] The air valve control system in the present invention also includes a feedback mechanism and an interactive device. The feedback mechanism is used to obtain the opening of air valve one and air valve two, and to feed back the current opening of air valve one and air valve two to the controller. The distance and the power of a single cabinet are defined through the interactive device, and the real-time operating power of the total server of a single cabinet can be displayed.

[0071] Through the above description, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, or of course by hardware. Based on this understanding, the above technical solution can essentially or in other words be embodied in the form of a software product that contributes to the prior art. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0072] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An intelligent sensing cabinet with a double air valve structure, characterized in that: The cabinet comprises a frame (1) and a panel (2) arranged outside the frame (1), wherein a first air valve (3) is arranged outside the frame and a second air valve (4) is arranged inside the frame; An air return mechanism, the air return mechanism comprising a mounting frame (5) and an air return fan (6); A control mechanism, comprising a controller (7) arranged outside the cabinet, wherein a group control switch (8) is arranged on the controller; The alarm mechanism comprises an alarm light (9) and an emergency stop button (10).

2. The intelligent sensing cabinet with a double air valve structure according to claim 1 is characterized in that: The cabinet is a single-control cabinet, and a plurality of single-control cabinets are combined and connected via a controller (7).

3. The intelligent sensing cabinet with a double air valve structure according to claim 1 is characterized in that: The air valve 1 (3) is a controllable ventilation floor, and the air valve 2 (4) is a controllable opening air valve.

4. The intelligent sensing cabinet with a double air valve structure according to claim 1 is characterized in that: The return air mechanism further comprises a plurality of return air temperature probes (11), and the return air temperature probes (11) are arranged on the inner side of the panel (2).

5. The intelligent sensing cabinet with a double air valve structure according to claim 1 is characterized in that: The controller (7) is connected to the electrical components inside the cabinet through a power line, and the controller (7) is electrically connected to the air valve 1 (3), the air valve 2 (4), and the return air mechanism or is connected via a PDU current signal.

6. The intelligent sensing cabinet with a double air valve structure according to claim 1 is characterized in that: The group control switch is designed to have two states, ON and OFF, and is set at a distance from the cabinet of the precision air conditioner.

7. An air valve control system of an intelligent sensing cabinet with a double air valve structure, characterized in that: The cabinet comprises a cabinet as claimed in any one of claims 1 to 6, and further comprises an air valve control system, wherein the control method of the air valve control system is as follows: If the cabinet is next to the precision air conditioner, set the distance to 1. If the cabinet is one cabinet away from the precision air conditioner, set the distance to 2, and so on. When the group control switch is OFF, A single cabinet has three control variables:

1. Variable 1: air valve opening P, set the minimum opening P0 = 0, the maximum opening P1; 2. Variable 2: air valve opening Q, set the minimum opening Q0 = 0, the maximum opening Q1; 3. Variable 3: Return air fan frequency R, set the minimum frequency R0 = 30Hz, the maximum frequency R1; At the same time, the power of a single cabinet is defined as A, and the real-time operating power of the total server in a single cabinet is defined as a, where the real-time operating power is calculated by the intelligent PDU current signal; When a single cabinet does not participate in cabinet group control, the control logic of the single cabinet is as follows:

1. When the cabinet is not powered on: the return air fan stops, the air valve 1 opening P is 0, and the air valve 2 opening Q is 0; 2. When the cabinet is powered on: A. Light load mode (i.e. when the return air fan frequency R is set to the lowest frequency R0; The air valve opening P is automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 33 degrees Celsius, that is, the opening P tracks the return air temperature of 33 degrees Celsius using the PID algorithm; The second opening degree Q of the air valve is set to the minimum opening degree Q0; B. Medium load mode (i.e. when 2*A / 3>a>=A / 2) The return air fan frequency R and the air valve opening P are automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 33 degrees Celsius, that is, the opening P and the fan frequency R jointly track the return air temperature of 33 degrees Celsius using the PID algorithm; The second opening degree Q of the air valve is set to the minimum opening degree Q0; C. Overload mode (i.e. when A>a>=2*A / 3) The air valve opening P is set to the maximum opening P1; ​ The return air fan frequency R and the air valve 2 opening Q are automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius, that is, the opening Q and the fan frequency R jointly track the return air temperature of 35 degrees Celsius using the PID algorithm; D. Super heavy load mode (i.e. when 1.2*A>a>=A) The opening degree P of air valve 1 is set to the maximum opening degree P1; The opening Q of air valve 2 is set to the maximum opening Q1; The return air fan frequency R is automatically adjusted so that the temperature data obtained by the return air temperature probe fluctuates around 35 degrees Celsius, that is, the fan frequency R and the return air temperature of 35 degrees Celsius are tracked by the PID algorithm together; When the group control switch is ON, Assuming that the group control switch distance of this cabinet is greater than 2 and it is running in overload mode, the alarm light will be on.

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