JP2001060785A - Cooling effect improving system in underfloor air- conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make appropriate cooling air-conditioning by an underfloor air- conditioning system in an air-conditioning chamber requiring cooling air- conditioning where a large computer or the like is installed. SOLUTION: In the improving device for appropriately air-conditioning a number of devices that have been installed in an air-conditioning chamber while effectively preventing overcooling and cooling shortage by an underfloor air- conditioning system, an adjustment valve in a switching type for blowing into all orientations on an underfloor surface for operating the improving device, sensors 71-74 for detecting the amount of wind being provided at least at four sites, external motors 51 and 52 for adjusting the degree of opening of the blowing adjustment valve, and an amount-of-wind detection control system 6 of cold air to be blowing into all orientations of the underfloor surface are combined, thus controlling the amount of blown cold air in all orientations of the underfloor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air conditioning system, and more particularly, to an underfloor air conditioning system in which a large computer or the like which requires cooling air conditioning is blown from the bottom to install cooling air. The present invention relates to a cooling effect improving system for an air conditioning system, which can appropriately control cooling air conditioning.

[0002]

2. Description of the Related Art Conventionally, in an air-conditioning room in which a large number of large computers or the like requiring cooling air-conditioning are installed, an under-floor air-conditioning system is generally used. In addition, these devices usually have a cool air intake port at the bottom.
Therefore, the air conditioning is usually performed by blowing cool air from under the floor and, if necessary, using the room air conditioner together to cool and air the entire room. Among them, as a main air conditioning measure, an underfloor air-conditioning system in which cool air is blown from under the floor is usually employed.

[0003] However, the size of the installed computer varies depending on the purpose of use, that is,
Processing speed, processing capacity, etc. are diverse. In addition, due to differences in the usage time zone, differences in usage conditions such as differences in usage frequency, and differences in external storage installation etc.
Generally, the temperature environment of each of these places is significantly different.

[0004] Therefore, it has conventionally been difficult to properly operate and control the air conditioning of the entire air conditioning room. In addition, in consideration of the environment of each device, it is particularly necessary to avoid overcooling or insufficient cooling by the device.

In other words, in recent years, with the increase in capacity, speed, and functionality, elements incorporated in many computer devices are minute and precise, and their structures are complicated and highly integrated by fine circuits. ing. Therefore, the occurrence of a trouble due to the temperature environment must be absolutely avoided.

[0006] In addition, by performing such appropriate air conditioning, a warning stop for the overcooling that is usually taken, and an emergency response due to insufficient cooling, etc., are significantly more burdensome than a regular air conditioning operation. I have to drive. Therefore,
Implementing appropriate air conditioning by reducing or preventing these abnormal operations is also an issue to be achieved by all means from the standpoint of power saving in such air conditioning management.

Therefore, conventionally, as a measure for air conditioning of such a computer room, for example, Japanese Patent Laid-Open No. Hei 4-31549 has been proposed.
No. 8, in conjunction with the indoor air-conditioning system, cool air is blown from under the floor into the inside of the device from under the floor, and the amount of cool air blown from under the floor is sensed through a sensor for cooling the magnetic disk device as an external storage device of the computer. A cooling method for an electronic device in which a cooling mechanism such as a fan for indoor air conditioning used together is stopped at a value equal to or more than a maximum set value or a predetermined amount or more. Such an air-conditioning proposal is nothing less than a correct measure for solving the various problems described above.

[0008]

Under the circumstances described above, a room in which a large-sized computer or the like that requires constant cooling air conditioning is used. The actual situation is that the air conditioning is controlled by this.

[0009] However, as described above, the air-conditioning room is generally operated under the condition of overcooling or insufficient cooling depending on the devices installed in the room. There are many things. In such situations, the driving system usually includes a warning stop,
Although emergency countermeasures and other countermeasures are issued and automatic backup can be performed to some extent, complete response is still difficult in many cases, and it is necessary to perform extraordinary operations that require human intervention.

[0010] In addition, even if these out-of-constant operations correspond to safety measures prepared in advance,
The air conditioning system is subjected to a load due to non-standard operation, which causes a trouble.

[0011] Such a trouble also adversely affects the function of a computer device, and in the unlikely event of a system stoppage, it will cause enormous economic damage, resulting in immeasurable economic problems. It could be a loss.

Therefore, in a place where cooling air conditioning is always required, it is extremely important that the cooling air conditioning is effectively and appropriately and automatically managed without any troubles due to the above-mentioned causes. It is.

Accordingly, an object of the present invention is to provide a single-use or other method, such as an underfloor air-conditioning system, which has been conventionally adopted as a main system, in a room where a large-sized computer or the like requires constant cooling and air-conditioning. An object of the present invention is to provide an air-conditioning system capable of properly operating cold air-conditioning without performing any conventional overcooling or insufficient cooling when air-conditioning management is performed in combination with an indoor air-conditioning system.

[0014]

Means for Solving the Problems In view of the above-mentioned problems, the present inventor has conducted intensive studies to solve the problems. As a result, the amount of cool air from the cool air intake provided under the floor is controlled by the air flow. By noting that the air-conditioning control is relatively easily optimized by focusing on omni-directional control with respect to the surface, it has been found that the supercooling and the insufficient cooling as described above can be prevented. It was completed.

That is, according to the present invention, a device that requires cooling air conditioning installed in an air-conditioning room is operated under a floor-based air-conditioning system so that air-conditioning is properly performed while effectively preventing a supercooling section and a cooling-deficient section. Various loads due to irregular operation,
Provided is a cooling air conditioning improvement system characterized in that a trouble can be prevented in advance.

That is, a cooling effect improving system that enables a room under large-sized computer or the like, which is always under operation control of cooling air conditioning, to be effectively and appropriately cooled and air-conditioned by an underfloor air conditioning system. It is provided below the floor by combining the functions and operations of the following (1) to (4), for example, omnidirectionally with respect to the floor surface while controlling the degree of opening and closing of the blind opening and closing blade member by computer. A cooling effect improving system characterized in that cold air is blown out by distributing the cooling air to appropriate places to properly cool and air-condition the entire room.

The functions and operations of the above-described system according to the present invention include: (1) an openable / closed automatic air-conditioning valve capable of blowing (or taking in) cool air omnidirectionally to the underside of the floor; , The amount of cool air can be distributed in all directions.

(2) In addition, air flow detecting sensors are provided at at least four positions on the lower surface of the floor at a position facing the air conditioning valve member of (1).

(3) The opening / closing type cold air blowing control valve can change the opening / closing degree in all directions in conjunction with an external motor for adjusting the opening / closing degree.

(4) Based on the input information from the air volume detection sensor, the air volume detection control unit issues a drive instruction to the external motor of (3) in order to distribute the amount of cold air blown omnidirectionally to the floor underneath. It is.

A cooling effect improving system characterized by controlling the amount of cold air blown in all directions under the floor by combining these.

Therefore, in the cooling effect improvement system according to the present invention, by combining the functions and operations (1) to (4) described above, the amount of cold air blown can be controlled omnidirectionally on the floor under the floor, and The under-floor air-conditioning system of the law effectively prevents or controls overcooling, insufficient cooling, or the like that occurs partially in a room, which is difficult to prevent or control.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, an embodiment in which the cooling effect improvement system according to the present invention is incorporated in underfloor air conditioning to control cooling of a target air-conditioning room will be described with reference to FIGS. This will be described below.

For example, as shown in the conceptual diagrams 1 (a) and 1 (b), which require cooling air conditioning for installing a large computer, the air conditioning room 7 shown in FIG. 1 (a) requires, for example, cooling air conditioning. A large number of computer devices 8 and the like are installed on a floor 9. Under the floor, although only conceptually illustrated, for example, an air volume adjusting valve 1 for adjusting the opening / closing degree by a blind opening / closing type or a rotating multi-leaf blade type,
is set up.

As shown in FIG. 1 (b) of a conceptual plan view, the air flow control valve 1 of the opening / closing degree adjustment type is, for example, a ₁ so as to face the entire surface of the floor of the air conditioning room 7. as in ~a _4, it can be provided an adjustment valve. by this,
The object of the present invention is to blow cold air omnidirectionally into the underside of the floor.

Further, in the present invention, as shown in FIG. 1B, for example, air flow rate detection sensors 71 to 74 are provided at at least four appropriate positions on the floor back surface above the regulating valve.
Here, the number and installation location of the sensors are not particularly limited, but they can be appropriately provided at appropriate locations in accordance with the optimization of the air conditioning control. Also, part 4
The four places can be selected and installed as appropriate, such as near the four corners of the room, or at the center of each of the four equally divided floor spaces.

This regulating valve is provided, for example, in FIG.
As shown in (b), motors 51 and 52 for controlling and driving the degree of opening and closing of the adjustment valve are provided at two places. The number of motors can be appropriately set to a necessary number according to the optimization of the air conditioning control.

The control operation of the motor can be instructed, for example, to control elements such as positive / negative rotation, rotation speed, rotation stop, etc., as a control output obtained by combining each of these elements with a time element. .

Further, as means for appropriately transmitting to the above-mentioned regulating valve, there is no particular need for a restricting transmitting means, and a means conventionally used conventionally can be suitably used.

Therefore, in an underfloor type air-conditioning system combining the above-mentioned components, it is generally preferable to circulate the flow of the cool air from under the floor through the room. That is, the cool air flow obtained by the air conditioner 4 is blown out from a cool air blow-out hole provided in the conduit 1, and a predetermined cool air flow based on the appropriate control is adjusted by the air flow detection control system according to the present invention to be described later. The air is blown in the entire surface direction with the distribution, and passes through the inside from the suction hole provided in the lower part of the installation device, or passes through the room and is again introduced into the air conditioning 4 from the exhaust duct 5 at the upper part of the room. Used for circulation.

Therefore, in the present invention, as described above, the cooling effect improving device according to the present invention is provided, as described above, through the cool air flow values detected by the air flow detection sensors 71 to 74 shown in FIG. The airflow amount detection control unit 6 (see FIG. 2), which is the control unit of FIG.

That is, as shown in FIG. 2, the air volume detection control unit 6 calculates an average air volume based on the detected air volume values obtained via the air volume detection sensors 71 to 74 as (1). It has a circuit 31. Next, it is linked to this circuit 31.

As (2), there is provided a comparison circuit 33 for comparing the average air volume with a predetermined air volume previously incorporated in the air volume setting section 32 to evaluate an allowable set air volume value. Next, the circuit 31, the air volume setting unit 32, and the comparison circuit 3
3 is output in the cooperative operation processing with 3.

(3) A motor that outputs a positive fluctuation value of the air flow and a negative fluctuation value of the air flow as positive and negative rotations (or ± values) as the motor rotation direction based on the standard deviation from the allowable set air flow value. And a drive circuit 34.

If necessary, as shown in FIG. 1, the alarm display unit 13 outputs a signal indicating the forward or reverse rotation of the. +-. Value of the motor rotation output from the motor driving circuit 34. Thus, a character display such as supercooling or insufficient air volume can be displayed to easily warn the operation manager in advance.

Thus, the rotations of the motors 51 and 52 shown in FIG. 2 are varied by the above-described forward or reverse rotation signal. These motors, as shown in FIG. 1B, change the operation of, for example, an open / close type cold air blowing adjustment valve (or opening / closing adjustment port). Here, the operation fluctuation can be given as an operation fluctuation alone or in combination as appropriate, for example, as an opening / closing degree, as a rotation direction or a rotation speed, depending on the type of the adjustment valve.

More specifically, as a more specific example, the average air volume value detected by the air volume detection sensors 71 to 74 is compared with an upper limit value and a lower limit value preset in the air volume setting section 32 by the comparison circuit 33. If the cool air volume exceeds the upper limit value as a result of comparison and evaluation, for example, the part is blown excessively on average at the same time as the instruction to the alarm display, so it is possible to prevent trouble due to overcooling. Therefore, an operation of closing the opening degree of the opening / closing adjustment valve is instructed.

When the value is below the lower limit, for example,
At the same time as the instruction to the alarm display, an operation to open the opening degree of the on-off regulating valve is issued.

[0039]

As described above, according to the present invention, by incorporating a cooling effect improving device as an air conditioning system, the air conditioning system can be used alone or with an indoor air conditioning system. However, it is possible to effectively prevent partial overcooling or insufficient cooling of the target air-conditioned room, which has been difficult to prevent or control in the air-conditioning system according to the conventional method.

As described above, proper air-conditioning control not only guarantees safe operation for a large computer or the like that requires operation management in a temperature environment such as cold air-conditioning, but also ensures safe operation of the air-conditioning system. Thus, it is possible to provide an air-conditioning system capable of significantly saving electric power by stabilizing operation.

[Brief description of the drawings]

FIG. 1 is a conceptual schematic diagram of employing a cooling effect improvement system of an underfloor air conditioning system according to the present invention.

FIG. 2 is a block diagram illustrating a configuration example of a cooling effect improvement device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Openable / closing type air volume adjustment valve 2 Cold air inlet 3 Cold air conduit 4 Air conditioner 5 Cold air suction duct 6 Air volume detection control system 7 Air conditioning room 8 Device (computer) 31 Average air volume calculation circuit 32 Air volume setting unit 33 Comparison circuit 34 Motor drive Circuit 38 Insufficient air volume indication 51,52 Motor 71,72,73,74 Air volume detection sensor

Claims (6)

[Claims] An under-floor air-conditioning system for effectively preventing overcooling or undercooling and optimizing an air-conditioning operation. An opening / closing type blow control valve that blows air, has an air flow rate detection sensor in at least four positions directly above the lower surface of the floor above the control valve, and controls the blow flow through information of the air flow rate detection sensor. An external motor for controlling the degree of opening and closing of the valve has an air volume detection control unit for instructing an appropriate amount of cold air blowing control output omnidirectionally on the lower surface of the floor of the air conditioning room. A cooling effect improvement system characterized by omnidirectional control. 2. The air volume detection control unit includes: a circuit for calculating an average air volume based on the air volume value detected by the air volume detection sensor; an air volume setting unit in which a predetermined optimal air volume value is pre-installed; And a comparison circuit that evaluates an allowable set airflow value by comparing and comparing the predetermined airflow with a predetermined airflow, and a drive circuit of the external motor that operates the opening / closing degree of the control valve based on a standard deviation of the allowable airflow value, The cooling effect improvement system according to claim 1, wherein an amount of cold air blown by the control valve that operates in conjunction with an external motor is omnidirectionally controlled on the floor lower surface. 3. The cooling effect improving system according to claim 1, wherein the open / close type cold air blowing control valve opens and closes a plurality of blades in a blind manner. 4. An apparatus according to claim 1, wherein said air volume detection sensor is provided with at least four sensors.
The cooling control effect improvement system according to any one of claims 1 to 3, wherein the part is provided immediately below each central part of the floor space that is equal to four. 5. The motor according to claim 1, wherein the standard deviation of the permissible airflow value is linked to a positive / negative value designated on the basis of the permissible value to provide a forward rotation signal and a reverse rotation signal to the motor.
5. The cooling effect improvement system according to any one of items 4 to 4. 6. The motor according to claim 1, wherein the standard deviation of the permissible airflow value is further linked to a positive / negative value designated on the basis of the permissible value to further provide the motor with forward and reverse rotation speed signals. Item 6. A cooling effect improving system according to Item 5.