JP2878238B2 - Air conditioner for computer room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-saving type air conditioner for a computer room, and more particularly to purifying, heating and evaporating water discharged from a drain pipe and supplying surplus hot water to a humidifier. The present invention relates to a water-saving air conditioner for a computer room which can save tap water.

[0002]

2. Description of the Related Art Conventionally, this type of air conditioner for a computer room has been applied to a test room for an environmental test as described in Japanese Utility Model Laid-Open No. 04-001435, for example. Non-reusable water that has condensed in the test room and reusable water that has condensed in the cooler and dehumidifier inside the air conditioner are collected separately.
The water is discharged outside, and the latter is collected in a humidification water tank and reused to save water.

Such a conventional water-saving type air conditioner for a computer room is applied to a test room for an environmental test as shown in FIG. 6, but the situation is schematically shown by blocks. ing. Here, reference numeral 101 denotes an environmental test device. The environmental test device 101 includes an inner tank 11 by a partition wall 121.
3 is divided into a test room 103 and an air conditioning room 104, and a cooler / humidifier 141 is provided in a part of the air conditioning room 104 of the air conditioner.

[0004] A groove 131 is provided along the bottom of the test chamber 103 to receive dew water on the inner wall of the test chamber 103, and remove the condensed water from the cooler / dehumidifier 141 below the groove 131. Is configured to be dropped forward.
And, in front of the cooler / dehumidifier 141 described above,
A drain hole 134 is provided at the bottom of the inner tank 113 in order to discharge the dew water of the test chamber 103 which falls into the inner tank 113 to the outside.

[0005] Below the cooler / dehumidifier 141,
A drain hole 146 is provided at the bottom of the air-conditioning room 104, through which water condensing on the wall surface of the air-conditioning room 104 and falling is collected in a humidification tank 145. I have. Further, the water collected in the humidification tank 145 is pumped up by the pump P and returned to the air-conditioning room 104 via the flow controller 144.

As described above, the condensed water on the inner wall of the test chamber 103 falls through the groove 131, flows to the bottom of the test chamber 103, and is discharged from the drain hole 134 to the outside as non-reusable water. Water condensed in the vicinity of the cooler / dehumidifier 141 in the air conditioning room 104 is collected as reusable water in the humidification water tank 145 via the drain hole 146. Can be raised.

[0007]

However, the first problem here is that a pump is used as shown in Japanese Utility Model Laid-Open No. 04-001435. That is,
In general, a pump structure having a movable part has many mechanical parts and has a characteristic that it is apt to break down. If it breaks down, dew condensation water overflows from the humidification water tank and the air conditioning room 10
4 and the function of the air-conditioning room is also impaired.

[0008] The second problem is the same as in
As described in JP-A-001435, the point is that the humidity change in the test room becomes drastic. In other words, since the condensed and cold water is returned to the air conditioning room 141 through the drain hole 146 and the humidification tank 145, when the test room is to be humidified, the water to the air conditioning room is once warmed and used. This will result in a significant change in humidity.

[0009] The present invention has been made based on the above circumstances, and its object is to maintain high security, for example, even if water is temporarily cut off due to a disaster, with only a small amount of water replenishment so as not to lower the humidification function. To provide an air conditioner for a computer room.

[0010] Further, the object of the present invention is to reduce the number of failure points and to reuse all water without wasteful drainage.

[0011]

Therefore, an air conditioner for a computer room according to the present invention comprises a drain plate for collecting and purifying dew water, an upper plate for receiving water dropped from the drain plate, and A sensor built in the upper plate to react to moisture on the upper plate, a heater also built in the upper plate, a lower plate receiving excess hot water dropped from the upper plate, and a hot water of the lower plate Equipped with a heater built in the lower dish to evaporate the water, a drain pipe for guiding excess hot water to the humidifier, and a humidification controller for monitoring and controlling the states of the upper dish, the lower dish and the humidifier. It is characterized by the following.

In this case, the humidifier is in a humidified state, and
It is preferable to provide a unit for outputting a dehumidification signal from the humidification control unit and suppressing the humidification amount in the humidifier under the condition that the discharged water is in the upper plate.

Therefore, since the discharged water is purified by the drain plate, the water falling from the drain plate can be evaporated immediately by the upper plate. Further, since water is evaporated by the upper plate, a change in humidity in the computer room can be reduced. Furthermore, by evaporating with the lower plate, excess hot water that could not be evaporated with the upper plate can be evaporated.

Furthermore, even if the amount of water to be discharged is changed and the water cannot be completely evaporated in the upper plate and the lower plate, the hot water is guided to the humidifier through the drain pipe and evaporated. In the humidified state, warm water is supplied, so that the humidity in the computer room does not change significantly. Then, all of the water can be reused without being discharged to the outside.

Further, if necessary, when the humidifier is in a humidified state and the upper plate is wet, a humidification signal can be given to the humidification control unit to suppress the humidification amount in the humidifier. By the means, the humidity change in the computer room can be largely suppressed.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. Here, a water-saving air conditioner 1 for a computer room (hereinafter referred to as an air conditioner 1).
A regeneration mechanism 2 composed of a regeneration unit 3 for regenerating the condensed water and a humidification control unit 4 for controlling the regeneration unit 3, a temperature sensor 5 for controlling a cooling operation of the air conditioner, and an air conditioner 1 The humidity sensor 6 for controlling the humidity of the humidifier and the detection states of the temperature sensor 5 and the humidity sensor 6 are monitored, and a humidifier operation signal and a humidifier stop signal are sent to the humidification controller 4 of the reproduction mechanism 2 according to the state. A monitoring and control circuit 7 for controlling the compressor 8 to supply a start signal and a stop signal.
And a compressor 8 that compresses and circulates the refrigerant gas, an evaporator 9 that is cooled by the circulating refrigerant gas, an outdoor unit 10 that radiates heat by the circulating refrigerant gas, and sends cold air of the cooled evaporator 9 to the outside. A blower fan 11, an outlet 12 from which cool air flows out, an inlet 13 for taking in warm air returning from outside the machine, a humidifier 14 for generating moisture, a drain plate 15 for collecting water overflowing from the humidifier, and a drain. A drain pipe 16 for guiding water collected by the plate to the outside of the machine.

As shown by a block in FIG. 2, the regenerating section 3 includes a drain plate 21 for collecting and purifying water condensed in the evaporator 9 and an upper plate 22 (for evaporating clean water falling from the drain plate 21). This includes a built-in sensor and a heater that reacts when there is moisture) and a lower plate 23 that receives excess hot water dropped from the upper plate 22 (here, a heater that further evaporates hot water is provided). And a drain pipe 24 for guiding the excess hot water to the humidifier.

Further, in the computer room, the above-mentioned temperature sensor 5 operates at a set temperature preset to the upper temperature limit under the temperature condition of the computer 17 installed therein. The sensor 6 also operates at a set humidity preset at the lower humidity limit of the humidity condition.

Normally, the computer 17 is operated in the computer room while the air conditioner 1 is in operation. In this case, the air whose temperature has risen due to the heat radiation from the computer 17 causes the temperature sensor 5 to operate. When activated, the signal is input to the monitoring and control circuit 7, and when it is determined that the temperature is at the upper limit, the compressor 8 is operated to start the cooling operation.

In this state, warm air in the air-conditioned room below the evaporator 9 flows upward by the blower fan 11, passes above and below the evaporator 9, is cooled, and flows out of the outlet 12. It is sent to the computer room. At the same timing, the air that has been heated there is returned from the computer room to the air-conditioning room from the suction port 13 by the amount of air sent.
In this way, the air passes through the evaporator 9 and again
It becomes cold air and is circulated to the computer room.

Further, when the humidity in the computer room is reduced by the air heated by the heat radiation from the electronic computer 17 and the humidity sensor 6 is activated, the signal is input to the monitoring control circuit 7 and it is determined that the humidity is the lower limit. At times, an operation signal is input to the humidifier 14. When the humidifier 14 is operated, the warm water is further warmed by the heater in the humidifier 14, turns into steam, hits the evaporator 9, and forms dew (a phenomenon that occurs in a saturated state of air).

Then, the condensed water vapor becomes water droplets, falls on a drain plate 15 in the shape of a saucer, and is slightly discharged to the outside through a drain pipe 16. However, since the air conditioner 1 of the present invention includes the regeneration unit 3 configured to evaporate the water condensed in the evaporator 9 and the regeneration mechanism 2 configured by the humidification control unit 4 that controls the regeneration unit 3,
There is no need to pump water to be discharged to the outside as in the related art.

In particular, in the regenerating section 3, water condensed in the evaporator 9 is guided to the upper plate 21 through a water filtration filter built in the drain plate 21. The upper plate 22 has a sensor that reacts when there is moisture.
This signal is input to the humidification controller 4 as a regeneration heating signal. At this time, the humidification control unit 4 to which the regenerative heating signal is input, sends the dehumidification signal to the humidifier 14 only when the humidifier 14 is in the humidified state.
A heating signal is output to the upper plate 22 and the lower plate 23 of the reproducing unit 3.

When a dehumidification signal is input to the humidifier 14, the output of the heater in the humidifier is reduced to a certain level of humidity, and the humidification capacity of the air conditioner 1 is reduced. Also, when a heating signal is input to the upper plate 22 and the lower plate 23 of the regenerating unit 3, the upper plate 22
Is heated to a certain heating temperature, and further, the lower plate 23 is heated to a value higher than the heating temperature of the upper plate 24, so that the dew condensation water evaporates immediately. The water heated by the upper plate 22 of the regenerating unit 3 evaporates a part of the water, and guides the remaining warm water to the lower plate 23.

Then, the dropped hot water immediately rises as steam in the lower plate 23, passes through the cold evaporator 9, and is sent into the computer room as cold and moist air. Also, the warm water of the upper plate 22 that did not fall on the lower plate 23,
The warm water not evaporated in the lower plate 23 flows into the humidifier 14. The air conditioning is performed by repeating this series of operations.

Next, the operation sequence of the present invention will be described with reference to FIGS. First, the user starts the operation of the water-saving computer air conditioner 1 (step S01). Subsequently, the computer 17 is operated in the computer room (step S02). At this time, step S0
In 1, the air conditioner 1 is in a blowing state (step S03), and the temperature of the computer room rises (step S04).

When the temperature of the computer room rises, the monitoring control circuit 7 monitors the temperature sensor 5 in which the upper limit and lower limit of the temperature of the electronic computer 17 are set in advance, and also monitors the upper limit of the humidity of the electronic computer 17 in advance. Since the humidity sensor 6 for which the value and the lower limit are set are monitored,
It is determined whether the temperature has exceeded the upper limit, has fallen below the lower limit, has exceeded the upper limit of humidity, or has fallen below the lower limit.
(Check: C01, Check: C02).

When the temperature sensor 5 operates on the upper limit side, the monitoring control circuit 7 determines that the temperature has exceeded the upper limit, and operates the compressor 8 (step S05).
When the temperature sensor 5 operates on the lower limit side, it is determined that the temperature has fallen below the lower limit, and the compressor 8 is stopped (Step S).
06).

Further, when the humidity sensor 6 operates on the lower limit side, the monitoring control circuit 7 determines that the humidity is below the lower limit, and outputs a humidification start signal to the humidifier controller 4 of the reproducing mechanism 2 (step S07). When the humidity sensor 6 operates on the upper limit side, it is determined that the humidity has exceeded the upper limit, and a humidification stop signal is output to the humidifier controller 4 of the reproducing mechanism 2 (step 08).

When the compressor is operated in step S05, the evaporator 9 is cooled (step S09). If warm air of a certain temperature or more is sucked from the suction port 13 (check: C03), the cooled evaporator 9 is cooled. Then, warm air collides with the air and dew forms (a phenomenon in which the air is saturated) (step S10), and the condensed water is led to the regeneration unit 3.

After inputting the humidification start signal to the humidification controller 4 in step S07, a humidification signal is output to the humidifier 14 (step S11), and the humidifier 14 is brought into a humidified state (step S12). Further, after inputting the humidification stop signal to the humidification control section 4 in step S08, the humidifier 14 outputs a humidification stop signal to the humidifier 14 (step S13), and the humidifier 14 is stopped (step S14).

Next, the condensed water is purified by a drain plate 21 having a filter structure of the regenerating unit 3 and falls on the upper plate 22. In the upper plate 22, a sensor that reacts when there is moisture checks whether or not there is moisture (check: C04). When there is moisture, the sensor operates and outputs a regeneration heating signal to the humidification controller 4 (step S1).
5). The humidification control unit 4 to which the regeneration heating signal is input checks whether the humidifier 14 is in a humidified state or a stopped state at that time (check: C05).

When the humidifier 14 is in the humidified state, the humidification controller 4
Outputs a dehumidification signal to the humidifier 14 (step S1).
6). When the humidifier 14 is in the stopped state, the humidification control unit 4 outputs a heating signal to the regeneration unit 3 (Step S1).
7). When the dehumidification signal is input to the humidifier 14 in step S16, the heater output of the humidifier 14 is reduced. When a heating signal is input to the reproducing unit 3 in step 17, the upper plate 22 and the lower plate 23 are heated by the heaters built in the upper plate 22 and the lower plate 23, respectively (steps S19 and S20).

When the upper plate 22 and the lower plate 23 are heated, the water therein becomes steam and passes through the evaporator 9 again (step 21), and the excess hot water flows into the humidifier 14 (step 21). Step 23). Thus, in the air conditioner of the present invention, the condensation water is reused.

(Embodiment 2) Next, another embodiment of the present invention will be described with reference to FIG. Although this embodiment is shown by blocks, it is basically the same as the water-saving computer air conditioner 1 in the above-described embodiment, and the difference is that is there. That is, the regenerating unit 3 in this embodiment includes a drain plate 51 having a built-in filter, a roller unit 52 for evaporating dew water dropped from the drain plate 51, and a drain plate for collecting warm water falling from the roller unit 52. It is composed of a plate 53 and a drain pipe 54 for guiding warm water collected by the drain plate 53 to the humidifier 14.

Next, the operation of this embodiment will be described with reference to FIGS. The dew water generated in the evaporator 9 falls on the drain plate 51 and is purified, and is guided to the roller unit 52. The roller unit 52 has a double structure of a metal belt having a built-in heater and a cloth belt having a built-in sensor that reacts when there is moisture, and a rotating unit that drives the fabric belt. When the condensed water falls on the section 52, the sensor operates and outputs a regeneration heating signal to the humidification control section 4.

The humidifier 14 is in a humidified state, and the humidification control unit 4 which has received the regeneration heating signal outputs a dehumidification signal to the humidifier 14. Thus, the humidifier 14 lowers the humidification output. Further, the humidification control unit 4 to which the regeneration heating signal is input.
Determines that there is dew water in the regeneration unit 3 and outputs a heating signal to the regeneration unit 3. Thereby, in the reproducing unit 3, the rotating unit of the roller unit 52 is activated and rotated, and the heater on the metal belt of the roller unit 52 is heated. When the heated metal belt rotates, the cloth belt also follows and rotates,
The dew condensation water is also heated to become steam, which passes through the evaporator 9,
Cooled.

Then, the moist cool air is sent out from the outlet 12 to the computer room by the blower fan 11. The condensed water remaining on the cloth belt of the roller portion 52 becomes water droplets, falls on the drain plate 53, and is guided to the humidifier 14 through the drain pipe 54. As described above, in this embodiment, as in the above-described embodiment, the condensed water that has been discharged to the outside in the conventional method is immediately evaporated, thereby achieving a low-humidity humidity in the computer room. Water can be reused more effectively.

[0039]

According to the present invention, as described in detail above, water dewed by an air conditioner is not discharged to the outside, but reusable water is immediately evaporated to control humidification in a humidifier. For example, even if the water supply is temporarily interrupted due to a disaster or the like, the humidity function of the air conditioner is not reduced only by a small amount of water supply. For this reason, it can be applied to electronic computers. In addition, since the water condensed by the air conditioner is supplied to the humidifier via the upper plate and the lower plate and finally, the water of limited resources can be reused without waste.

[Brief description of the drawings]

FIG. 1 is a block diagram of a water-saving type air conditioner for a computer according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing details of a reproduction unit 3;

FIG. 3 is a flowchart for explaining the operation.

FIG. 4 is a flow chart similar to FIG. 3;

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is a block diagram showing an example of an environmental test apparatus for reusing dew water in a conventional air conditioner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Air conditioner for computer 2 Regeneration mechanism 3 Regeneration unit 4 Humidification control unit 5 Temperature sensor 6 Humidity sensor 7 Monitoring control circuit 8 Compressor 9 Evaporator 10 Outdoor unit 11 Ventilation fan 12 Blow-out port 13 Suction port 14 Humidifier 15 Drain plate DESCRIPTION OF SYMBOLS 16 Drain pipe 17 Computer 21 Drain plate 22 Upper plate 23 Lower plate 24 Drain tube 51 Drain plate 52 Roller part 53 Drain plate 54 Drain tube 101 Environmental test device 103 Test room 104 Air conditioning room 113 Inner tank 121 Partition wall 131 Groove 134 Drain Hole 141 Cooling and dehumidifier 144 Flow controller 145 Humidification water tank 146 Drainage hole S01 to S23 Operation steps

Claims (3)

(57) [Claims] 1. A drain plate for collecting and purifying dewed water, an upper plate for receiving water dropped from the drain plate, a sensor built in the upper plate to react to moisture on the upper plate, Similarly, a heater built in the upper plate, a lower plate receiving excess hot water dropped from the upper plate, and a heater built in the lower plate to evaporate the warm water of the lower plate,
An air conditioner for a computer room, comprising: a drain pipe for guiding excess hot water to a humidifier; and a humidification controller for monitoring and controlling the states of the upper plate, the lower plate, and the humidifier. 2. When the humidifier is in a humidified state and the water to be discharged is on the upper plate, a means for outputting a dehumidification signal from the humidification control unit and suppressing a humidification amount in the humidifier is provided. The air conditioner for a computer room according to claim 1, wherein: 3. The air conditioner for a computer room according to claim 1, wherein a heater of the upper plate is activated by a detection signal of a sensor built in the upper plate. Machine.