JP2002357333A - Temperature/humidity adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure effective heat exchange by bringing heat exchange gas to a direct contact with a heat medium. SOLUTION: There are connected annularly a plurality of parallel connected direct contact heat exchangers 10a, 10b installed in a multiple steps vertically where a fluid heat medium 11 and heat exchange gas Air are brought into a direct contact for heat exchange, a space 17 to be air-conditioned, and an air fan apparatus 14, and there are annularly connected the plurality of the parallel connected direct contact heat exchangers 10a, 10b and a cold/warm water producer 20 for heating or cooling the heat medium 11 and for circulating the heat medium 11 among the plurality of the parallel connected direct contact heat exchangers 10a, 10b. Hereby, the amount of heat exchange can be increased, and the flow rate of the heat exchange gas Air by the air fan apparatus 14 is easy to assure, and further the heat exchange as Air can be cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling the temperature and humidity of a heat exchange gas by passing a heat exchange gas such as air through a heat exchange gas such as air in a heat medium such as a liquid.

[0002]

2. Description of the Related Art A conventional heat exchanger of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. 8-86576. That is, as shown in FIG. 4, a liquid 3 which is water is injected into a liquid tank 2 which is a heat exchanger 1, and an air supply device 6 is connected to a bubble generating means 4 provided at the bottom of the liquid tank 2 via a pipe 5. The sent air is blown into the liquid 3 as fine bubbles 7 by the bubble generating means 4. After the gas is brought into direct contact with the liquid 3, the gas released from the surface of the liquid 3 is collected by the collection pipe 8.

[0003]

In this heat exchange device,
When the liquid 3 is released from the bubble generating means 4 into the liquid 7 and is brought into direct contact with the liquid 3, the head pressure due to the liquid level of the liquid 3 is applied as a static pressure to the air supply device 6. If the liquid level is too high, there is a drawback that the air blowing amount of the air blowing device 6 is reduced.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide an efficient heat exchange by bringing a heat exchange gas into direct contact with a heat medium.

[0005]

SUMMARY OF THE INVENTION The invention of a temperature and humidity control apparatus according to claim 1 of the present invention is directed to a plurality of parallel-connected heat-exchange gases which are brought into direct contact with a fluid heat medium and a heat exchange gas to exchange heat. Heat-exchange gas in which a direct-contact heat exchanger, an air-conditioned space, and a blower that conveys the heat-exchange gas in the air-conditioned space into the plurality of parallel-connected direct-contact heat exchangers are connected in a ring shape. A cycle, the plurality of parallel-connected direct contact heat exchangers, and cold / hot water for heating or cooling the heat medium and circulating the heat medium between the plurality of parallel-connected direct contact heat exchangers. And a heat medium cycle in which the generator is connected in an annular manner.

In the above configuration, the blower distributes and transfers the heat exchange gas used for air conditioning to the plurality of direct contact heat exchangers. And, since the heat medium with the water head height suitable for the performance of the blower is evenly stored in each direct contact heat exchanger, the total flow rate of the transferred heat exchange gas does not decrease, and it is branched into multiple. The heat-exchanged gas comes into direct contact with the heat medium and is efficiently exchanged heat. After flowing out of the direct-contact heat exchangers, the heat-exchanged gas is collected, secured at a predetermined temperature, humidity and flow rate, and conveyed to the air-conditioned space.

Here, since the plurality of direct contact heat exchangers are connected in parallel, the heat medium is dispersed in the plurality of direct contact heat exchangers, and the liquid level of the heat medium in the direct contact heat exchanger is increased. The amount of heat exchange can be increased without increasing the temperature, and the liquid level of the heat medium in the direct contact heat exchanger can be reduced, so that the load on the blower is small and the amount of heat exchange gas blown by the blower Easy to secure.

Further, when the heat exchange gas contaminated with dust or the like performs the function of air conditioning and comes into direct contact with the heat medium such as liquid, the dust adheres to the heat medium and also acts to clean the heat exchange gas. I do.

According to a second aspect of the present invention, there is provided a temperature and humidity control apparatus according to the first aspect, wherein the direct contact heat exchanger is configured to partition a space in the direct contact heat exchanger up and down. A filter, a perforated plate disposed close to the upper surface of the water-repellent filter, an inlet for a heat exchange gas communicating with a space below the water-repellent filter in the direct contact heat exchanger, and the direct contact. An inlet for the heat medium communicating with an upper part of the space above the water repellent filter in the heat exchanger, and an inlet for the heat medium in the space above the water repellent filter in the direct contact heat exchanger. An outlet for the heat medium communicating below, and the direct contact heat flowing into the space above the water repellent filter in the direct contact heat exchanger from the inlet for the heat medium and flowing out from the outlet for the heat medium. In the exchanger An outlet for a heat exchange gas communicating above the upper surface of the medium, wherein the water repellent filter is configured to transmit the heat exchange gas but not to transmit the heat medium, and The heat exchange gas that has passed through the aqueous filter is formed into a number of uniform bubbles, and is passed through the heat medium flowing over the water-repellent filter.

In the above structure, the total volume of the heat medium required for heat exchange is determined by the number of installed direct contact heat exchangers, and the head pressure corresponding to the head height of the heat medium, which is determined by the amount of storage evenly distributed. And, the pressure loss in the perforated plate and the water-repellent filter, and the static pressure corresponding to the sum of the pressure loss between the blower and the direct contact heat exchanger is applied to the blower, but other than the water head pressure is almost negligible. Therefore, the static pressure applied to the blower is greatly reduced as compared with the case of one direct contact heat exchanger, and an effect that a predetermined flow rate of the heat exchange gas can be secured.

According to a third aspect of the present invention, there is provided a temperature and humidity control apparatus according to the first aspect, wherein the direct contact heat exchanger is configured to partition a space in the direct contact heat exchanger up and down. A filter, a perforated plate disposed in proximity to the upper surface of the water repellent filter, a lower inlet of a heat exchange gas communicating with a space below the water repellent filter in the direct contact heat exchanger, An inlet for the heat medium communicating with the upper part of the space above the water-repellent filter in the contact heat exchanger, and an inlet for the heat medium in the space above the water-repellent filter in the direct contact heat exchanger. Is an outlet of the heat medium communicating below, and the direct contact flowing into the space above the water repellent filter in the direct contact heat exchanger from the inlet of the heat medium and flowing out of the outlet of the heat medium. Heat exchanger An outlet for the heat exchange gas communicating above the upper surface of the heat medium, and an outlet for the heat medium flowing into the space above the water repellent filter in the direct contact heat exchanger from the inlet for the heat medium. An upper inlet for the heat exchange gas communicating above the upper surface of the heat medium in the direct contact heat exchanger flowing out of the heat exchanger, a lower inlet for the heat exchange gas and an upper inlet for the heat exchange gas. Are connected outside the direct contact heat exchanger, and the upper inlet of the heat exchange gas and the outlet of the heat exchange gas are connected from the upper inlet of the heat exchange gas to the outlet of the heat exchange gas. The water-repellent filter is arranged so as to allow the heat exchange gas to permeate but not the heat medium, so that the length of the flow path of the heat exchange gas is relatively long. , The perforated plate includes the water-repellent filter Are those configured by the transmitted said heat exchange gas was a large number of uniform cell passing in said heating medium flowing over the water-repellent filter.

In the above configuration, the heat medium which has flowed while being adjusted to a predetermined temperature by the cold / hot water generator flows directly into the space above the water repellent filter in the contact heat exchanger from the inlet of the heat medium. Here, the water-repellent filter is
Because it is configured so as not to penetrate the heat medium, the water-repellent filter in the direct contact heat exchanger does not fall through the water-repellent filter and fall into the space below the water-repellent filter in the direct contact heat exchanger. After filling the space above to a predetermined height and performing direct heat exchange with a heat exchange gas described later, the heat flows out of the contact heat exchanger directly from the outlet of the heat medium.

On the other hand, the heat exchange gas conveyed from the air-conditioned space directly into the contact heat exchanger by the blower is divided into a flow toward the lower inlet of the heat exchange gas and a flow toward the upper inlet of the heat exchange gas. The heat exchange gas that has been diverted and diverted to the upper inlet side of the heat exchange gas flows directly from the upper inlet of the heat exchange gas into a space above the upper surface of the heat medium in the contact heat exchanger. Also, the heat exchange gas diverted to the lower inlet side of the heat exchange gas flows directly from the lower inlet of the heat exchange gas into a space below the water repellent filter in the contact heat exchanger,
Furthermore, it passes through the water-repellent filter, passes through many holes in the perforated plate, forms a number of uniform bubbles, passes through the heat medium flowing over the water-repellent filter while directly exchanging heat with the heat medium, and generates direct contact heat. It exits into the space above the upper surface of the heat carrier in the exchanger. The heat exchange gas that has flowed out into the space above the upper surface of the heat medium in the direct contact heat exchanger flows toward the heat exchange gas outlet while contacting the upper surface of the heat medium and exchanging heat with the heat medium, It flows out of the contact heat exchanger directly from the heat exchange gas outlet.

Therefore, in addition to the constitution of the invention described in claim 2, in addition to the water-repellent filter, the perforated plate, and the heat medium, the water-repellent filter is not directly passed through the space above the upper surface of the heat medium in the direct contact heat exchanger. , Because a flow path for heat exchange gas has been added,
The static pressure applied to the blower is further reduced than in the second aspect of the present invention, and has an effect that a predetermined flow rate of the heat exchange gas can be secured.

According to a fourth aspect of the present invention, there is provided a temperature / humidity adjusting device according to any one of the first to third aspects, wherein the plurality of direct contact heat exchangers connected in parallel are: It is installed in multiple stages in the vertical direction, and has an effect that a plurality of direct contact heat exchangers connected in parallel can be efficiently installed in a small space.

According to a fifth aspect of the present invention, there is provided a temperature and humidity control apparatus according to any one of the first to fourth aspects, wherein the cold / hot water generator is provided at the inlet side of the heat medium. It has a heat medium purifying means for cleaning the heat medium. When the heat medium and the heat exchange gas come into direct contact with each other in the direct contact heat exchanger, the heat exchange gas dust and the like adhere and become dirty Since the medium is purified by the heat medium purifying means on the inlet side of the cold / hot water generator, a clean heat medium is always circulated to the direct contact heat exchanger, and heat exchange by direct contact with the heat exchange gas is maintained at a high level. Has the effect of being able to.

According to a sixth aspect of the present invention, there is provided a temperature / humidity adjusting device according to any one of the first to fifth aspects, further comprising: a temperature sensor for detecting a temperature of a space to be air-conditioned; Operating mode detecting means for detecting an operating mode of the air-conditioned space, blowing device controlling means for controlling a blowing device based on the operating mode of the air-conditioned space detected by the operating mode detecting means, and detecting by the operating mode detecting means A chilled / hot water generator control means for controlling a chilled / hot water generator based on the operating mode of the conditioned air space and a temperature difference between the temperature of the conditioned air space detected by the temperature sensor and a set temperature. It is.

In the above configuration, when the operation mode of the space to be conditioned detected by the operation mode detecting means is the cooling operation, and the temperature of the space to be conditioned detected by the temperature sensor is higher than the set temperature by a predetermined temperature or more, the control of the blowing device is performed. The means operates the blower to circulate the heat exchange gas of the heat exchange gas cycle, and the cold / hot water generator control means operates the cold / hot water generator to cool the heat medium of the heat medium cycle with the cold / hot water generator. Circulate the heating medium. At this time, in the plurality of direct contact heat exchangers connected in parallel, the heat exchange gas of the heat exchange gas cycle was directly contacted with the heat medium of the heat medium cycle and cooled, and was cooled in the direct contact heat exchanger. The heat exchange gas flows into the conditioned space and cools the conditioned space. Further, when the operation mode of the conditioned space detected by the operation mode detecting means is the heating operation, and the temperature of the conditioned space detected by the temperature sensor is lower than the set temperature by a predetermined temperature or more, the blower control means switches the blower. Operate to circulate the heat exchange gas of the heat exchange gas cycle, and the cold / hot water generator control means operates the cold / hot water generator to heat the heat medium of the heat medium cycle with the cold / hot water generator and circulate the heat medium. . At this time, in the plurality of parallel-connected direct contact heat exchangers, the heat exchange gas of the heat exchange gas cycle was directly contacted with the heat medium of the heat medium cycle and heated, and was heated in the direct contact heat exchanger. The heat exchange gas flows into the conditioned space and heats the conditioned space.

Therefore, when the operation mode of the conditioned space is set to the cooling operation or the heating operation, if the temperature of the conditioned space satisfies a predetermined temperature condition, the conditioned space is cooled or heated.

According to a seventh aspect of the present invention, there is provided a temperature and humidity control apparatus according to any one of the first to sixth aspects, wherein an outlet of the direct contact heat exchanger and an inlet of the space to be conditioned are provided. A heat exchange gas flows through the inlet pipe of the space to be conditioned and the outlet of the blower, and the discharge pipe of the blower through which the heat exchange gas flows connects the outlet of the direct contact heat exchanger. The bypass valve is controlled such that the bypass valve is opened when the operation mode of the air-conditioned space detected by the operation mode detecting means and the temperature of the air-conditioned space detected by the temperature sensor satisfy predetermined conditions. A bypass valve control means is provided.

Accordingly, when the heat load in the space to be conditioned is low and the heat load is lower than the heat exchange capacity of the direct contact heat exchanger, the heat after the heat exchange in the space to be conditioned by opening the bypass valve is performed. This has an effect that it becomes possible to control a heat exchange gas to a temperature corresponding to a heat load by bypassing a part of the exchange gas to an inlet pipe side to the space to be conditioned.

Further, when the operation mode of the space to be conditioned is the cooling mode, and the temperature of the space to be conditioned, that is, the value of the heat exchange gas detected by the temperature sensor becomes lower than a predetermined temperature,
When the water vapor component in the heat exchange gas condensed condenses on the surface of the inlet pipe to the air-conditioned space and near the outlet, and condensation occurs, the heat after the heat exchange in the air-conditioned space by opening the bypass valve This has an effect that it is possible to prevent a dew condensation by increasing a dry bulb temperature of the heat exchange gas by bypassing a part of the exchange gas to the inlet pipe side to the air-conditioned space.

According to the invention of a temperature and humidity control apparatus according to the eighth aspect, in the invention according to any one of the first to seventh aspects, the temperature sensor comprises an outlet of a space to be conditioned and an inlet of a blower. This is installed at a position close to the space to be air-conditioned in the outlet pipe of the space to be air-conditioned, through which the heat exchange gas flows.

With the above configuration, the temperature sensor detects the temperature of the heat exchange gas after heat exchange in the space to be air-conditioned at a position near the air-conditioned side. The effect of reducing the influence of the loss and easily performing high-precision temperature adjustment can be obtained, and the operation can be easily performed.

That is, if the temperature of the heat exchange gas is adjusted and sent for air conditioning in the direct contact heat exchanger, the temperature changes greatly due to the heat loss when the distance to the air-conditioned space is long. Compared to taking measures to prevent this or to prevent this, the temperature can be adjusted near the space to be conditioned,
This has the effect that much simpler and more accurate temperature control becomes possible, and the control operation on the air-conditioned space side becomes easier.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the temperature and humidity controller according to the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a schematic configuration diagram of a temperature / humidity control apparatus showing Embodiment 1 of the present invention.

In FIG. 1, reference numerals 10a and 10b denote direct contact heat exchangers each having a cylindrical can body whose outer periphery is covered with a heat insulating material, and store therein a heat medium 11 such as cold / hot water or ice water. A space 12 is formed above. Each of the direct contact heat exchangers 10a and 10b is provided with a perforated plate as a means for emitting a heat exchange gas such as air which directly contacts the heat medium 11 and exchanges heat from the entire bottom of the can body to generate bubbles. 1
3 are provided.

Reference numeral 14 denotes a direct contact heat exchanger 1
0a and 10b, each of which has a direct contact heat exchanger 10a, 10b
b, and an air-conditioned space outlet pipe with one end opening facing the air-conditioned space 17 to draw in a heat exchange gas, which is air in the space to be air-conditioned 17, in order to suck the heat exchange gas. 19.

Further, even when the heat exchange gas is not being conveyed, the heat medium 11 stored in each of the direct contact heat exchangers 10a and 10b is kept in contact with the direct contact heat exchangers 10a and 10b.
The water-repellent filter FL is provided on the lower surface side of the perforated plate 13 so that the water-repellent filter FL does not flow into the blower 14 via the discharge pipe 15 connected to the bottom of each 10b.

A cold / hot water generator 20 circulates the heat medium 11 through circulation pipes 21 and 22 connected to the bottom and top of each of the direct contact heat exchangers 10a and 10b. Further, the cold / hot water generator includes a compressor, a condenser, an evaporator, and the like that constitute a known heat pump refrigeration cycle, and heats, cools, and freezes water that is a circulating heat medium 11.

Numeral 23 denotes an air-conditioned space inlet pipe connecting the upper surface of the direct contact heat exchanger 10 and the upper part of the air-conditioned space 17. Air, which is a heat exchange gas subjected to heat exchange in the vessel 10, is blown into the room.

Reference numeral 25 denotes the temperature of the heat exchange gas flowing through the air-conditioned space inlet pipe 23 by performing heat exchange for cooling or heating.
This is a bypass valve for controlling the temperature to be used for air conditioning.
The valve is connected to the middle of the discharge pipe 15 and can be freely opened to control the temperature by controlling the amount of a part of the air used for air conditioning mixed with the heat-exchanged heat exchange gas.

An input means 26 for instructing temperature / humidity adjustment of the conditioned space 17 is provided.

An operation mode detecting means Mode for detecting an operation mode, a cold / hot water generator control means HPcnt for instructing an operation mode of the cold / hot water generator 20, a blower 1
Blower control means PMcnt for operating / stopping 4;
Bypass valve control means V for controlling the opening of the bypass valve 25
cnt and a system control means Cnt comprising signal processing means Thcal for processing a signal from the temperature sensor Th.
And

The operation of the temperature / humidity controller configured as described above will be described with reference to the flowchart shown in FIG.

Here, the operation for cooling the air-conditioned space 17 will be described. First, in step 1, the input unit 26
After the operation mode is set to the cooling mode and the set temperature is set to Ts, in step 2, the blower control means PMc
nt, the blower 14 is turned on and operated for a predetermined time,
In step 3, the intake air temperature To of the conditioned space 17 is detected by the temperature sensor Th.

Then, in step 4, if the first predetermined temperature difference is dT and the intake air temperature To <Ts−dT,
Returning to step 3, if To ≧ Ts−dT, step
Go to 5.

Then, at step 5, the suction air temperature T
If o <Ts + dT, the process returns to step 3, and To ≧ Ts
In the case of + dT, the process proceeds to step 6, in which the cold / hot water generator 20 is started to operate in the cooling mode by the cold / hot water generator control means HPcnt.

Thereafter, at step 7, the temperature To of the intake air in the air-conditioned space 17 is detected again by the temperature sensor Th.

In step 8, the second predetermined temperature difference is set as dT '(dT'> dT), and the intake air temperature To <
In the case of Ts-dT ', after the cold / hot water generator 20 is stopped by the cold / hot water generator control means HPcnt in step 9,
Returning to step 7, if To ≧ Ts−dT ′, step
Move to p10.

If the suction air temperature To <Ts−dT at step 10, the bypass valve 25 is opened at step 11 to return to step 7, and if To <Ts + dT, the processing shifts to step 12, where the suction air temperature To <Ts
+ DT, the process returns to step 7, and if To ≧ Ts + dT, at step 13, the cold / hot water generator control means HPcn
At t, the operation of the cold / hot water generator 20 is continued in the cooling mode.

The heat medium 11 is cooled to a low temperature in the cold / hot water generator 20 and sent to the two direct contact heat exchangers 10a and 10b by the circulation pipe 21.
At 0b, heat exchange with the air Air lowers the temperature of the air Air, and conversely, the temperature of the heat medium 11 itself rises, so it is returned to the cold / hot water generator 20 via the circulation pipe 22, where it is re-cooled and again It is sent to the direct contact heat exchangers 10a and 10b, and thereafter circulated repeatedly.

On the other hand, the blower 14 directs the air Air in the conditioned space 17 sucked from the indoor suction port 18 through the conditioned space outlet pipe 19 and the discharge pipe 15 to the direct contact heat exchanger 1.
Send to the lower part in 0a, 10b. At this time, the blower 14 distributes and conveys the air Air used for air conditioning or the like into the multiple direct contact heat exchangers 10a and 10b that are stacked in multiple stages.

Further, a water-repellent filter FL that allows only the air Air to pass and does not allow the heat medium 11 to pass is provided below the direct contact heat exchangers 10a and 10b. In which a perforated plate 13 for generating air bubbles is provided.

As described above, each direct contact heat exchanger 10a,
The head height of the heat medium (for example, several tens of mm) determined by the number of the direct contact heat exchangers 10a and 10b in which the required volume of the heat medium 11 is installed in the 10b is determined by the storage amount equally distributed. A considerable head pressure, the pressure loss in the perforated plate 13 and the water repellent filter FL, and the static pressure corresponding to the sum of the pressure loss between the blower 14 and the direct contact heat exchangers 10a and 10b (for example, several hundred Pa) It is applied to the device 14, but since it is almost negligible except for the head pressure,
The static pressure applied to the blower 14 is greatly reduced as compared with the case of one direct contact heat exchanger, and a predetermined flow rate of the air Air can be secured.

That is, the total flow rate of the conveyed air Air does not decrease, and the air Air branched into a plurality of portions comes into direct contact with the heat medium 11 and is efficiently exchanged with heat, and the direct contact heat exchangers 10a and 10b After flowing out, the air is collected and transported to the air-conditioned space 17 while maintaining a predetermined temperature, humidity and flow rate.

The air Air is blown out as bubbles from the perforated plate 13, and comes into direct contact with the heat medium 11 while ascending in the heat medium 11, and exchanges heat. Then, the air enters the air-conditioned space inlet pipe 23 from the direct contact heat exchangers 10a and 10b.

Low temperature and high humidity flowing in the air-conditioned space inlet pipe 23 (however, the relative humidity is high, but the absolute humidity is low)
A part of the indoor air branched from the discharge pipe 15 of the blower 14 by the bypass valve 25 flows out into the air-conditioned space inlet pipe 23 and is mixed and adjusted to a predetermined temperature and humidity. It is blown out to the air-conditioned space 17 to perform a cooling / dehumidifying operation.

The air Air whose temperature and humidity have been increased by performing the cooling / dehumidifying operation is again supplied from the indoor suction port 18 to the contact heat exchangers 10a and 10b by the blower 14 again.
The heat is transferred for heat exchange, and this cycle is repeated thereafter.

As described above, the direct contact heat exchangers 10a, 10a
0b, the conveyed air Air can be brought into direct contact with the heat medium 11 to efficiently exchange heat, and the air Air
The heat medium 11 contaminated with dust and the like due to heat exchange by direct contact with the heat medium 11 is cleaned by the heat medium cleaning means 31 on the inlet side of the cold / hot water generator 20, and then the heat medium 11 is heated. Will be

The temperature sensor Th is connected to the air-conditioned space 1.
Since the temperature of the air Air after the heat exchange in step 7 is detected at a position close to the air-conditioned side, the influence of heat loss between the air-conditioned space 17 and the direct contact heat exchangers 10a and 10b is reduced to achieve high accuracy. Temperature and humidity can be easily adjusted and the operation can be easily performed.

That is, the direct contact heat exchangers 10a and 10a
When the temperature of the air Air is set for the air-conditioned space 17 and sent in the area b, the temperature is greatly affected by the heat loss when the distance to the air-conditioned space 17 is long, or the temperature is prevented. Compared to taking countermeasures, the temperature can be adjusted in a place close to the air-conditioned space 17, so that much simpler and more accurate temperature control is possible, and the control operation on the air-conditioned space 17 side is also easier. Will be possible.

When the heat load in the space 17 to be conditioned is low, and the heat load is the direct contact heat exchanger 10a,
10b, the bypass valve 2
5 after opening and exchanging heat in the conditioned space 17
A part of ir can be bypassed to the inlet pipe 23 side to the space to be air-conditioned 17 so that the air Air can be controlled to a temperature and humidity appropriate for the heat load.

Further, the operation mode of the conditioned space 17 is the cooling mode, and the temperature of the conditioned space 17, that is, the value detected by the temperature sensor Th becomes lower than a predetermined temperature. When the water vapor component in the conveyed air Air condenses on the surface 23 and the vicinity of the air outlet 24 to cause dew condensation, a part of the air Air after opening the bypass valve 25 and exchanging heat in the air-conditioned space 17. Can be bypassed to the inlet pipe 23 side to the air-conditioned space 17 to increase the dry-bulb temperature of the air Air to prevent dew condensation.

In addition, the direct contact heat exchangers 10a, 10b
Inside, the heat medium 11 which is contaminated with dust and the like of the air Air due to direct contact with the air Air is cleaned by the heat medium cleaning means 31 on the inlet side of the cold / hot water generator 20, so that the heat medium 11 is always clean. Heat medium 11 is brought into direct contact heat exchanger 10
a, 10b and heat exchange by direct contact with air Air can be maintained at a high level.

Further, since the heat medium cleaning means 31 is installed on the inlet side of the cold / hot water generator 20, it can be easily removed, and even when dust is accumulated over a long period of use, cleaning can be easily performed. it can.

According to this technical means, the air Air is brought into direct contact with the heat medium 11 and heat exchanged, so that it can be efficiently heated or cooled, and the air Ai that is contaminated by air conditioning.
The cleaning of r can be performed by the heat medium 11. Further, the temperature and humidity of the heat exchanged air Air can be easily and efficiently adjusted.

In the above embodiment, the heat medium 11
Although water was used as the water, slurry ice water mixed with fine crushed ice may be used. Similarly, the bypass valve 25 uses a part of the indoor air for temperature control. However, fresh air outside may be used, or if the intended purpose is achieved, the air mixing may be performed. The configuration may be completely different from the configuration in which the temperature control is performed by the above.

The cold / hot water generator 20 controls the temperature of the heat medium 11 circulated directly to the contact heat exchanger 10 through the circulation pipes 21 and 22 by a built-in temperature control means (not shown) and a system control means Cnt. It controls the heat exchange capacity directly.

The cold / hot water generator 20 cools the heat medium 11 to a set temperature, and directs the heat
a and 10b, and the heat medium 11 whose temperature has risen due to heat exchange with the air Air is returned by the circulation pipe 22 to be recooled, and is again sent to the direct contact heat exchangers 10a and 10b for circulation.

The circulating heat medium 11 is supplied to the air Ai by the temperature control means including the system control means Cnt.
The temperature is set so that r becomes a temperature used for air conditioning after heat exchange. Therefore, the direct contact heat exchangers 10a, 1
0b can be controlled by the cold / hot water generator 20 to control the temperature of the conditioned air.

In the above embodiment, the cold / hot water generator 2
0 controls the heat exchange capacity of the direct contact heat exchangers 10a and 10b to indirectly control the temperature of the air blown out to the air-conditioned space 17, but is further set by the input means 26 on the air-conditioned space inlet pipe 23 side. It is also possible to increase the accuracy. Further, the direct contact heat exchanger 1 is provided by the cold / hot water generator 20.
0a and 10b are controlled by the cold / hot water generator 20.
The temperature at which the heat medium 11 is cooled is adjusted by controlling the heat exchange capacity of the heat pump refrigeration cycle that constitutes the above.

In the above embodiment, the operation for cooling the air-conditioned space 17 has been described. However, the operation is the same in the case of the heating mode.

As described above, the temperature / humidity controller of the present embodiment comprises a plurality of parallel-connected direct contact heat exchangers for directly contacting the fluid heat medium 11 and the heat exchange gas Air for heat exchange. A heat exchange in which a space 10a, 10b, an air-conditioned space 17, and a blower 14 that conveys the heat exchange gas Air of the air-conditioned space 17 into a plurality of parallel-connected direct contact heat exchangers 10a, 10b are connected in an annular manner. A gas cycle and a plurality of parallel connected direct contact heat exchangers 10a, 10b;
A heating medium cycle in which a heating / cooling water generator 20 for heating or cooling the heating medium 11 and circulating the heating medium 11 between a plurality of parallel-connected direct contact heat exchangers 10a and 10b is connected in an annular manner. Have been.

In the above configuration, the blower 14 distributes and transports the heat exchange gas Air used for air conditioning to the plurality of direct contact heat exchangers 10a and 10b. In addition, since the heat medium 11 having a water head height corresponding to the performance of the blower is evenly stored in each of the direct contact heat exchangers 10a and 10b, the total flow rate of the transferred heat exchange gas Air decreases. In addition, the heat exchange gas Air branched into a plurality of pieces comes into direct contact with the heat medium 11 and is efficiently exchanged heat. After flowing out of each of the direct contact heat exchangers 10a and 10b, they are gathered to a predetermined temperature, humidity, and temperature.
The flow is secured and transported to the air-conditioned space 17. Here, since the plurality of direct contact heat exchangers 10a and 10b are connected in parallel, the heat medium 11 is dispersed in the plurality of direct contact heat exchangers 10a and 10b, and the direct contact heat exchanger 1
The heat exchange amount can be increased without increasing the liquid level of the heat medium 11 in the heat exchangers 0a and 10b.
0a and 10b, the liquid level of the heat medium 11 can be reduced, so that the load applied to the blower 14 is small.
It is easy to secure the amount of air blown by the heat exchange gas Air. Also,
When the heat exchange gas Air contaminated with dust or the like that functions as an air conditioner comes into direct contact with the heat medium 11 such as a liquid, the dust adheres to the heat medium 11 and also cleans the heat exchange gas Air.

Further, the temperature and humidity controller of the present embodiment
The direct contact heat exchangers 10a and 10b include a water repellent filter FL that partitions a space in the direct contact heat exchangers 10a and 10b up and down, a perforated plate 13 disposed close to the upper surface of the water repellent filter FL, Contact heat exchangers 10a, 10b
An inlet for the heat exchange gas Air communicating with a space below the water repellent filter FL in the inside, and a direct contact heat exchanger 10a,
10b, the inlet of the heat medium 11 communicating with the upper part of the space above the water repellent filter FL, and the direct contact heat exchanger 1
The heat medium 11 communicates with the space above the water repellent filter FL in the inside of the heat medium 11 below the inlet of the heat medium 11.
And the direct contact heat exchangers 10a, 10b flowing into the space above the water repellent filter FL in the direct contact heat exchangers 10a, 10b from the inlet of the heat medium 11 and flowing out of the outlet of the heat medium 11. And an outlet for the heat exchange gas Air communicating above the upper surface of the heat medium 11 inside. The water-repellent filter FL is configured so as to allow the heat exchange gas Air to pass therethrough but not through the heat medium 11. The plate 13 is configured so that the heat exchange gas Air that has passed through the water repellent filter FL is converted into a large number of uniform bubbles and passes through the heat medium 11 flowing over the water repellent filter FL.

In the above configuration, the heat medium 11 which has been flown at a predetermined temperature by the cold / hot water generator 20 flows,
Direct contact heat exchangers 10a, 10a
b flows into a space above the water repellent filter FL. Here, since the water-repellent filter FL is configured not to pass through the heat medium 11, the water-repellent filter FL passes through the water-repellent filter FL and enters a space below the water-repellent filter FL in the direct contact heat exchangers 10a and 10b. Without dropping, the space above the water repellent filter FL in the direct contact heat exchangers 10a and 10b is filled to a predetermined height to perform direct heat exchange with a heat exchange gas Air described later. It flows out of the contact heat exchangers 10a and 10b directly from the outlet.

On the other hand, the air-conditioned space 17
The heat exchange gas Air conveyed into the direct contact heat exchangers 10a and 10b from the heat exchange gas Air flows through the water repellent filter FL in the direct contact heat exchangers 10a and 10b from the inlet of the heat exchange gas Air.
It flows into the lower space, and the water repellent filter FL
And passes through the heat medium 11 flowing over the water-repellent filter FL into the heat medium 11 flowing directly over the water-repellent filter FL while directly exchanging heat with the heat medium 11 to form direct contact heat. It exits into a space above the upper surface of the heat medium 11 in the exchangers 10a and 10b. Heat exchange gas A that has flowed out into a space above the upper surface of the heat medium 11 in the direct contact heat exchangers 10a and 10b.
The ir flows toward the outlet of the heat exchange gas Air while contacting the upper surface of the heat medium 11 and exchanging heat with the heat medium 11, and flows directly from the outlet of the heat exchange gas Air to the contact heat exchanger 1.
It flows out of 0a and 10b.

In the above configuration, the total volume of the heat medium 11 necessary for heat exchange is determined by the number of the direct contact heat exchangers 10a and 10b installed. The head pressure corresponding to the head height, the pressure loss in the perforated plate 13 and the water-repellent filter FL, and the static pressure corresponding to the sum of the pressure loss between the blower 14 and the direct contact heat exchangers 10a and 10b are determined by the blower 14 However, since the pressure other than the water head pressure is almost negligible, the static pressure applied to the blower 14 is greatly reduced as compared with the case of one direct contact heat exchanger 10a, 10b, and the heat exchange gas Ai
It becomes possible to secure a predetermined flow rate of r.

In this embodiment, the direct contact heat exchangers 10a and 10b are constituted by cylindrical cans.
The present invention is not limited to this, and may be a square tubular can.

Further, when the inlet of the heat exchange gas Air and the outlet of the heat exchange gas Air are separated as far as possible in both the vertical and horizontal directions, the direct contact heat exchangers 10a, 10b
Since the variation in the length of the flow path of the heat exchange gas Air in the inside decreases, and the variation in the flow rate of the heat exchange gas Air in each flow path also decreases, the heat exchange efficiency improves.

When the inlet of the heat medium 11 and the outlet of the heat medium 11 are separated as far as possible in both the vertical and horizontal directions, the heat medium 1 in the direct contact heat exchangers 10a and 10b can be separated.
The variation in the length of one flow path is reduced, and the variation in the flow velocity of the heat medium 11 in each flow path is also reduced, so that the heat exchange efficiency is improved. Is preferred.

When the inlet of the heat medium 11 is provided on the top surface (top plate) of the direct contact heat exchangers 10a and 10b, the flow resistance of the heat medium 11 at the inlet of the heat medium 11 is small, and The heat medium 11 in the contact heat exchangers 10a and 10b is agitated and disturbs the upper surface (liquid level) of the heat medium 11 (causing liquid splash), so that heat exchange efficiency is improved.

Further, the horizontal distance between the inlet of the heat medium 11 and the outlet of the heat exchange gas Air is set so as to prevent the heat medium 11 that has jumped up from entering the outlet of the heat exchange gas Air. It is preferable to keep it.

In the present embodiment, the water-repellent filter FL and the perforated plate 13 are connected by the direct contact heat exchangers 10a and 10a.
b, the water repellent filter FL
And the perforated plate 13 so that the heat medium 11 can smoothly flow out of the outlet of the heat medium 11 in the direct contact heat exchangers 10a and 10b (the heat medium 11 in the direct contact heat exchangers 10a and 10b). Heat medium 1 so that the flow becomes a predetermined flow)
It may be inclined so that it becomes lower as it goes toward the outlet side of No. 1.

Further, the temperature and humidity controller of the present embodiment
A plurality of direct contact heat exchangers 10a, 10b connected in parallel
Are installed in multiple stages in the vertical direction, so that a plurality of direct contact heat exchangers 10a and 10b connected in parallel can be efficiently installed in a space-saving manner.

Further, the cold / hot water generator 20 has a heat medium cleaning means 31 for cleaning the heat medium 11 on the inlet side of the heat medium 11, and the heat medium 11 in the direct contact heat exchangers 10a and 10b. And the heat exchange gas Air are in direct contact with each other, so that the heat medium 11 contaminated with dust and the like of the heat exchange gas Air is cleaned by the heat medium purifying means 31 on the inlet side of the cold / hot water generator 20. Therefore, the clean heat medium 11 is always circulated through the direct contact heat exchangers 10a and 10b, and the heat exchange by the direct contact with the heat exchange gas Air can be maintained at a high level.

Further, the temperature and humidity controller of the present embodiment
A temperature sensor Th for detecting the temperature of the air-conditioned space 17,
An operation mode detection means Mode for detecting an operation mode of the air-conditioned space 17, and a blower 14 based on the operation mode of the air-conditioned space 17 detected by the operation mode detection means Mode.
Device control means PMcnt for controlling the operation of the air-conditioned space 17 detected by the operation mode detecting means Mode and the air-conditioned space 1 detected by the temperature sensor Th.
7 based on the temperature difference between the temperature of 7 and the set temperature.
0 and a cold / hot water generator control means HPcnt.

In the above configuration, the operation mode detecting means M
If the operation mode of the air-conditioned space 17 detected by the mode is the cooling operation and the temperature of the air-conditioned space 17 detected by the temperature sensor Th is higher than the set temperature by a predetermined temperature or more, the blower control unit PMcnt sets the blower 14 It operates to circulate the heat exchange gas Air of the heat exchange gas cycle, and the cold / hot water generator control means HPcnt controls the cold / hot water generator 2
0 is operated to cool the heat medium 11 in the heat medium cycle with the cold / hot water generator 20 and circulate the heat medium 11. At this time, a plurality of parallel-connected direct contact heat exchangers 10
a, 10b, the heat exchange gas Air of the heat exchange gas cycle is cooled by directly contacting the heat medium 11 of the heat medium cycle, and the heat exchange gas Air cooled in the direct contact heat exchangers 10a, 10b is cooled. The air flows into the air-conditioned space 17 to cool the air-conditioned space 17. Also, the operation mode detecting means Mo
When the operation mode of the air-conditioned space 17 detected by de is the heating operation and the temperature of the air-conditioned space 17 detected by the temperature sensor Th is lower than the set temperature by a predetermined temperature or more,
The blower control means PMcnt operates the blower 14 to circulate the heat exchange gas Air of the heat exchange gas cycle,
The cold / hot water generator control means HPcnt operates the cold / hot water generator 20 to heat the heat medium 11 in the heat medium cycle with the cold / hot water generator 20 and circulate the heat medium 11. At this time, a plurality of parallel-connected direct contact heat exchangers 10a, 1
0b, the heat exchange gas Ai of the heat exchange gas cycle
r is heated in direct contact with the heat medium 11 of the heat medium cycle, and the heat exchange gas Air heated in the direct contact heat exchangers 10a and 10b flows into the air-conditioned space 17 to heat the air-conditioned space 17. .

Therefore, if the operation mode of the conditioned space 17 is set to the cooling operation or the heating operation and the temperature of the conditioned space 17 satisfies the predetermined temperature condition,
Is cooled or heated.

Further, the temperature and humidity controller of the present embodiment
The outlets of the direct contact heat exchangers 10a and 10b and the air-conditioned space 1
7 is a blower in which the heat exchange gas Air flows, which connects the inlet pipe 23 of the conditioned space 17 through which the heat exchange gas Air flows, the outlet of the blower 14, and the inlets of the direct contact heat exchangers 10a, 10b. 14 with the discharge pipe 15 via a bypass valve 25, and the operation mode detecting means Mod
e) bypass valve control means Vcnt for controlling the bypass valve 25 so that the bypass valve 25 is opened when the operation mode of the air-conditioned space 17 detected by e and the temperature of the air-conditioned space 17 detected by the temperature sensor Th satisfy predetermined conditions. Is provided.

Thus, when the heat load in the space to be conditioned 17 is low and the heat load is
In the case where the heat exchange capacity is lower than the heat exchange capacities a and 10b, part of the heat exchange gas Air after the bypass valve 25 is opened and the heat exchange is performed in the air-conditioned space 17 is introduced into the inlet pipe 2 to the air-conditioned space 17.
By bypassing to the third side, the heat exchange gas Air can be controlled to a temperature suitable for the heat load.

Further, the operation mode of the conditioned space 17 is the cooling mode, and the temperature of the conditioned space 17, that is, the value of the heat exchange gas Air detected by the temperature sensor Th becomes lower than the predetermined temperature. In the case where the water vapor component in the heat exchange gas Air condensed condenses on the surface of the inlet pipe 23 and the vicinity of the outlet 24 to the degassing phenomenon, the bypass valve 25 is opened to exchange heat in the air-conditioned space 17. A part of the heat exchange gas Air is
7 is bypassed to the inlet pipe 23 side to exchange heat gas Ai.
It is possible to prevent dew condensation by increasing the dry bulb temperature of r.

The temperature sensor Th is connected to the air-conditioned space 1
7 is installed at a position close to the air-conditioned space 17 in the outlet pipe 19 of the air-conditioned space 17 through which the heat exchange gas Air that connects the outlet 18 of the blower 14 and the inlet of the blower 14 is provided. Since the temperature of the heat exchange gas Air after heat exchange in the space 17 is detected at a position close to the air-conditioned side, the contact heat exchanger 1
The effect of the heat loss between Oa and 10b is reduced, and highly accurate temperature adjustment can be easily performed, and the operation is also facilitated.

That is, the direct contact heat exchangers 10a, 10a
If the temperature of the heat exchange gas Air is adjusted and sent for air conditioning in b, if the distance to the air-conditioned space 17 is long, the temperature is greatly affected by the heat loss and the temperature changes, or measures to prevent this The temperature can be adjusted in a place close to the air-conditioned space 17, which makes it possible to control the temperature much more easily and with high accuracy, and the control operation on the air-conditioned space 17 is also easy. become.

(Embodiment 2) Hereinafter, a temperature and humidity controller according to Embodiment 2 of the present invention will be described with reference to the drawings.

FIG. 3 is a schematic configuration diagram of a temperature and humidity controller according to Embodiment 2 of the present invention. In FIG. 3, reference numeral 41 denotes a lower inlet pipe (lower inlet) of the heat exchange gas Air,
It communicates with a space below the water-repellent filter FL in the direct contact heat exchangers 10a and 10b.

Reference numeral 42 denotes an upper inlet pipe (upper inlet) of the heat exchange gas Air, which is provided in the space 12 above the water repellent filter FL in the direct contact heat exchangers 10a and 10b.
The first contact heat exchangers 10a and 10b which flow in from one inlet and flow out from the outlet of the heat medium 11 communicate with each other above the upper surface of the heat medium 11.

The lower inflow pipe (lower inlet) 41 of the heat exchange gas Air and the upper inflow pipe (upper inlet) 42 of the heat exchange gas Air communicate with each other outside the direct contact heat exchangers 10a and 10b. The upper inflow pipe (upper inlet) 42 of the heat exchange gas Air and the outlet of the heat exchange gas Air extend from the upper inflow pipe (upper inlet) 42 of the heat exchange gas Air to the outlet of the heat exchange gas Air. Are arranged so that the length of the flow path of the heat exchange gas Air is relatively long.

The temperature / humidity controller of the present embodiment is connected to the direct contact heat exchangers 10a and 10b of the temperature / humidity controller of Embodiment 1 shown in FIG. 1) shown in FIG.
In this embodiment, the inlet of the heat exchange gas Air of the temperature and humidity controller is referred to as a lower inflow pipe (lower inlet) of the heat exchange gas Air, and the other configuration is the same as that of the first embodiment shown in FIG. The same reference numerals are given to the same components, and the detailed description is omitted.

[0092] The direct contact heat exchangers 10a and 10b of the temperature and humidity controller of the present embodiment are different from the direct contact heat exchangers 10a and 10b.
Water repellent filter FL that partitions the space inside 10b up and down
And the porous plate 13 disposed close to the upper surface of the water repellent filter FL, and the lower inlet 41 of the heat exchange gas Air communicating with the space below the water repellent filter FL in the direct contact heat exchangers 10a and 10b. And the direct contact heat exchanger 10
a, the inlet of the heat medium 11 communicating with the upper part of the space above the water repellent filter FL in the direct contact heat exchangers 10a, 10b, and the flow of the heat medium 11 into the space above the water repellent filter FL in the direct contact heat exchangers 10a, 10b. The outlet of the heat medium 11 flows into the space above the water repellent filter FL in the direct contact heat exchangers 10a and 10b from the outlet of the heat medium 11 communicating below the inlet and from the outlet of the heat medium 11 The outlet of the heat exchange gas Air communicating above the upper surface of the heat medium 11 in the outflowing direct contact heat exchangers 10a and 10b and the space above the water repellent filter FL in the direct contact heat exchangers 10a and 10b. Heat exchange gas Ai that flows in from the inlet of the heat medium 11 and flows out from the outlet of the heat medium 11 and communicates above the upper surface of the heat medium 11 in the direct contact heat exchangers 10a and 10b.
r, and the lower inlet 41 of the heat exchange gas Air and the upper inlet 42 of the heat exchange gas communicate with each other outside the direct contact heat exchangers 10a and 10b, and the heat exchange gas The upper inlet 42 of the air and the outlet of the heat exchange gas Air have a relatively long flow path of the heat exchange gas Air from the upper inlet 42 of the heat exchange gas Air to the outlet of the heat exchange gas Air. The water-repellent filter FL is configured so as to allow the heat exchange gas Air to pass therethrough but not through the heat medium 11.
Is a heat exchange gas Air that has passed through the water repellent filter FL.
Is made into a number of uniform air bubbles, and is passed through the heat medium 11 flowing over the water-repellent filter FL.

In the above configuration, the heat medium 11 which has been flown at a predetermined temperature by the cold / hot water generator 20 flows,
Direct contact heat exchangers 10a, 10a
b flows into a space above the water repellent filter FL. Here, since the water-repellent filter FL is configured not to pass through the heat medium 11, the water-repellent filter FL passes through the water-repellent filter FL and enters a space below the water-repellent filter FL in the direct contact heat exchangers 10a and 10b. Without dropping, the space above the water repellent filter FL in the direct contact heat exchangers 10a and 10b is filled to a predetermined height to perform direct heat exchange with a heat exchange gas Air described later. It flows out of the contact heat exchangers 10a and 10b directly from the outlet.

On the other hand, the air-conditioned space 17 is
The heat exchange gas Air conveyed directly into the contact heat exchangers 10a and 10b from the lower heat inlet 41 of the heat exchange gas Air
The heat exchange gas Air divided into the flow toward the upper flow inlet 42 and the flow toward the upper inlet 42 of the heat exchange gas Air,
direct contact heat exchanger 10a, 1
Ob flows into the space 12 above the upper surface of the heat medium 11. Further, the heat exchange gas Air diverted to the lower inflow port 41 side of the heat exchange gas Air flows from the lower inflow port 41 of the heat exchange gas Air directly below the water repellent filter FL in the contact heat exchangers 10a and 10b. Flows through the water-repellent filter FL, passes through the water-repellent filter FL, passes through many holes in the perforated plate 13 to form a number of uniform air bubbles, and flows directly over the water-repellent filter FL into the heat medium 11. It passes while exchanging, and exits into the space 12 above the upper surface of the heat medium 11 in the direct contact heat exchangers 10a and 10b. The space 1 above the upper surface of the heat medium in the direct contact heat exchangers 10a and 10b
The heat exchange gas Air that has flown out into the heat exchange gas Air flows out toward the outlet of the heat exchange gas while coming into contact with the upper surface of the heat medium 11 and exchanging heat with the heat medium 11. It flows out of the heat exchangers 10a and 10b.

Therefore, in addition to the structure of the first embodiment, it does not pass through the water-repellent filter FL, the perforated plate 13 and the heat medium 11, but is located above the upper surface of the heat medium 11 in the direct contact heat exchangers 10a and 10b. Heat exchange gas A directly in the space 12
Since the flow path into which ir flows is added, the static pressure applied to the blower 14 is further reduced as compared with the configuration of the first embodiment,
It is possible to secure a predetermined flow rate of the heat exchange gas Air.

The other operations of the temperature / humidity adjusting device are the same as those of the first embodiment, and the description is omitted.

The lower inlet 41 of the heat exchange gas Air
And the ratio of the flow resistance of the lower inlet 41 and the upper inlet 42 or the flow rate of the lower inflow pipe 41 so that the flow toward the upper air inlet 42 and the flow toward the upper inlet 42 of the heat exchange gas Air are divided at an appropriate ratio. It is preferable to set a ratio of the pipe diameter of the upper inflow pipe 42.

The lower inlet 41 of the heat exchange gas Air
A branch ratio adjusting valve capable of adjusting a branch ratio may be provided at a branch point where the flow toward the upstream and the flow toward the upper inlet 42 of the heat exchange gas Air may be provided, or one of the lower inlet pipe 41 and the upper inlet pipe 42 may be provided. On one side, a flow control valve capable of adjusting the opening of the valve is provided so that the flow rate of the heat exchange gas Air provided with one of the lower flow pipe 41 and the upper flow pipe 42 can be finely adjusted. It does not matter.

The lower inlet 41 of the heat exchange gas Air
A three-way switching valve is provided at a branch point where a flow toward the upper flow port 42 and a flow toward the upper inlet 42 of the heat exchange gas Air are provided.
Only one of the flow of the heat exchange gas Air toward the lower inlet 41 and the flow of the heat exchange gas Air toward the upper inlet 42 may be selectively used, or the flow of the lower inflow pipe 41 and the upper inflow pipe 42 may be changed. An on-off valve may be provided on either one of the lower inflow pipe 41 and the upper inflow pipe 42 so that the use of the inflow pipe provided with one of the on / off valves may be selected.

[0100]

As described above, according to the first aspect of the present invention, a plurality of parallel-connected direct contact heat exchanges are provided, in which a fluid heat medium and a heat exchange gas are brought into direct contact to exchange heat. A heat exchange gas cycle in which an air-conditioning unit, an air-conditioned space, and a blower that conveys the heat exchange gas in the air-conditioned space into the plurality of parallel-connected direct contact heat exchangers are connected in an annular manner. A direct contact heat exchanger connected in parallel, and a cold / hot water generator for heating or cooling the heat medium and circulating the heat medium between the plurality of parallel connected direct contact heat exchangers. The temperature and humidity controller is composed of a heat medium cycle connected to a heat exchanger and a plurality of direct contact heat exchangers connected in parallel. Liquid of heat medium in contact heat exchanger The amount of heat exchange can be increased without increasing the height, and the liquid level of the heat medium in the direct contact heat exchanger can be reduced, so the load on the blower is small and the heat exchange gas It is easy to secure the air volume.
Further, the heat exchange gas contaminated with dust or the like that functions as an air conditioner comes into direct contact with the heat medium such as a liquid, so that dust adheres to the heat medium and the heat exchange gas can be purified at the same time.

The invention described in claim 2 is the same as the claim 1.
The direct contact heat exchanger according to the invention described in the above, the water repellent filter partitioning the space in the direct contact heat exchanger up and down, a porous plate disposed close to the upper surface of the water repellent filter, the direct contact An inlet for a heat exchange gas communicating with a space below the water repellent filter in the heat exchanger,
An inlet for a heat medium communicating with an upper part of a space above the water repellent filter in the direct contact heat exchanger, and a flow of the heat medium in a space above the water repellent filter in the direct contact heat exchanger. An outlet for the heat medium communicating below the inlet, and a space above the water-repellent filter in the direct contact heat exchanger, which flows from the inlet for the heat medium and flows out from the outlet for the heat medium. An outlet for the heat exchange gas communicating above the upper surface of the heat medium in the direct contact heat exchanger, wherein the water-repellent filter is configured to allow the heat exchange gas to permeate but not to pass through the heat medium. , Wherein the perforated plate is configured such that the heat exchange gas that has passed through the water repellent filter is converted into a large number of uniform bubbles and passes through the heat medium flowing over the water repellent filter. Must Head pressure equivalent to the head height of the heat medium, determined by the amount of storage evenly distributed by the number of installed direct contact heat exchangers, and the pressure loss in the perforated plate and water-repellent filter And the static pressure corresponding to the sum of the pressure loss between the blower and the direct contact heat exchanger is applied to the blower, but since it is almost negligible except for the head pressure, in the case of one direct contact heat exchanger Thus, the static pressure applied to the blower is greatly reduced, and a predetermined flow rate of the heat exchange gas can be secured.

The invention described in claim 3 is the first invention.
The direct contact heat exchanger according to the invention described in the above, the water repellent filter partitioning the space in the direct contact heat exchanger up and down, a porous plate disposed close to the upper surface of the water repellent filter, the direct contact A lower inlet for the heat exchange gas communicating with the space below the water repellent filter in the heat exchanger, and a flow of the heat medium communicating with the upper part of the space above the water repellent filter in the direct contact heat exchanger. An inlet, an outlet of the heat medium communicating with the space above the water repellent filter in the direct contact heat exchanger below the inlet of the heat medium, and the water repellency in the direct contact heat exchanger. An outlet for a heat exchange gas that communicates above the upper surface of the heat medium in the direct contact heat exchanger that flows into the space above the filter from the inlet of the heat medium and flows out of the outlet of the heat medium, Direct contact Heat exchange flowing into the space above the water repellent filter in the exchanger from the inlet of the heat medium and flowing out of the outlet of the heat medium and communicating above the upper surface of the heat medium in the direct contact heat exchanger An upper inlet for the gas, the lower inlet for the heat exchange gas and the upper inlet for the heat exchange gas communicate with each other outside the direct contact heat exchanger, and the upper inlet for the heat exchange gas; The heat exchange gas outlet is disposed apart from the heat exchange gas so that the length of the heat exchange gas flow path from the upper inlet of the heat exchange gas to the heat exchange gas outlet is relatively long. The water-repellent filter is configured to allow a heat exchange gas to pass therethrough but not the heat medium, and the porous plate is formed by converting the heat exchange gas that has passed through the water-repellent filter into a number of uniform bubbles. Before flowing over the water-repellent filter It is configured to pass through the heat medium, and in addition to the configuration of the invention according to claim 2, heat in the direct contact heat exchanger does not pass through the water repellent filter, the perforated plate, and the heat medium. Since the flow path through which the heat exchange gas flows directly into the space above the upper surface of the medium is added, the static pressure applied to the blower is further reduced than in the invention according to claim 2, and a predetermined flow rate of the heat exchange gas is secured. It becomes possible to do.

The invention described in claim 4 is the first invention.
A plurality of direct contact heat exchangers connected in parallel in the invention according to any one of claims 1 to 3, wherein the plurality of direct contact heat exchangers are installed in multiple stages in the vertical direction, and a plurality of direct contact heat exchangers connected in parallel are provided. Can be installed efficiently and in a small space.

The invention described in claim 5 is the first invention.
The provision of the heat medium purifying means for purifying the heat medium at the inlet side of the heat medium in the cold / hot water generator according to any one of claims 4 to 5 allows dust and the like of the heat exchange gas to be removed. The adhering and contaminated heat medium is cleaned by the heat medium cleaning means at the inlet and outlet of the cold / hot water generator, so that the clean heat medium can always be circulated to the direct contact heat exchanger, and directly contact the heat exchange gas. Can maintain high heat exchange.

The invention described in claim 6 is the first invention.
A temperature sensor for detecting a temperature of the space to be air-conditioned, an operation mode detecting means for detecting an operation mode of the space to be air-conditioned, and detection by the operation mode detecting means. Blower control means for controlling a blower based on an operation mode of the air-conditioned space,
A chilled / hot water generator that controls a chilled / hot water generator based on an operating mode of the conditioned space detected by the operating mode detecting means and a temperature difference between a temperature of the conditioned space detected by the temperature sensor and a set temperature. With the provision of the control means, when the operation mode of the conditioned space is set to the cooling operation or the heating operation and the temperature of the conditioned space satisfies a predetermined temperature condition, the conditioned space is cooled or heated.

The invention described in claim 7 is the first invention.
In addition to the invention according to any one of claims 6 to 6, the inlet pipe of the air-conditioned space through which the heat exchange gas that connects the outlet of the direct contact heat exchanger and the inlet of the air-conditioned space flows, and the outlet of the blower, The discharge pipe of the air blower through which the heat exchange gas that connects the inlet of the direct contact heat exchanger flows is connected to the discharge pipe of the blower through a bypass valve, and the operation mode of the air-conditioned space detected by the operation mode detection means and the temperature sensor are used. By providing bypass valve control means for controlling the bypass valve so that the bypass valve is opened when the detected temperature of the air-conditioned space satisfies a predetermined condition, when the heat load in the air-conditioned space is low, and If the heat load is lower than the heat exchange capacity of the direct contact heat exchanger, a part of the heat exchange gas after the heat exchange in the conditioned space by opening the bypass valve is distributed to the inlet to the conditioned space. Is bypassed to the side of the heat exchange gas it is possible to control the temperature commensurate with the thermal load.

Further, when the operation mode of the space to be conditioned is the cooling mode, and the temperature of the space to be conditioned, that is, the value of the heat exchange gas detected by the temperature sensor becomes lower than the predetermined temperature,
When the water vapor component in the transferred heat exchange gas condenses on the surface of the inlet pipe to the space to be conditioned and near the outlet, and condensation occurs, the heat after the heat exchange in the space to be conditioned by opening the bypass valve A part of the exchange gas is bypassed to the inlet pipe side to the space to be air-conditioned, so that the dry bulb temperature of the heat exchange gas can be increased to prevent dew condensation.

The invention described in claim 8 is the first invention.
8. The temperature sensor according to claim 1, further comprising: a temperature sensor disposed near the air-conditioned space in an outlet pipe of the air-conditioned space through which a heat exchange gas that connects an outlet of the air-conditioned space and an inlet of the air blower flows. The temperature of the heat exchange gas after heat exchange in the air-conditioned space,
Since the detection is performed at a position close to the air-conditioned side, the effect of heat loss between the air-conditioned space and the direct contact heat exchanger is reduced, and highly accurate temperature control can be easily performed and the operation is easy. That is, when the temperature of the heat exchange gas is adjusted and sent for air conditioning in the direct contact heat exchanger, the temperature is greatly affected by the heat loss when the distance to the air-conditioned space is long, or the temperature changes, or Compared to taking measures to prevent this, the temperature can be adjusted closer to the space to be conditioned, so much easier and more accurate temperature control is possible, and the control operation on the space to be conditioned is easier. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a configuration of a first embodiment of a temperature / humidity adjusting device according to the present invention.

FIG. 2 is a flowchart showing the operation of the temperature and humidity controller according to the embodiment;

FIG. 3 is a schematic configuration diagram showing a configuration of a temperature and humidity controller according to a second embodiment of the present invention;

FIG. 4 is a cross-sectional view showing a configuration of a conventional heat exchange device.

[Description of Signs] 10a, 10b Direct contact heat exchanger 11 Heat medium 13 Perforated plate 14 Blower 15 Discharge pipe 17 Air-conditioned space 19 Outlet pipe of air-conditioned space 20 Cold / hot water generator 23 Inlet pipe of air-conditioned space 25 Bypass Valve 31 Heat medium purifying means 41 Lower inlet of heat exchange gas (lower inlet pipe) 42 Upper inlet of heat exchange gas (upper inlet pipe) Air Heat exchange gas FL Water repellent filter HPcnt Cold / hot water generator control means Mode operation Mode detection means PMcnt blower control means Th temperature sensor Vcnt bypass valve control means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F28C 3/06 F28C 3/06

Claims (8)

[Claims] 1. A plurality of parallel-connected direct contact heat exchangers for directly contacting a fluid heat medium and a heat exchange gas for heat exchange, an air-conditioned space, and the heat exchange of the air-conditioned space. A heat exchange gas cycle in which a blower that conveys a gas into the plurality of parallel-connected direct contact heat exchangers is connected in an annular manner; and the plurality of parallel-connected direct contact heat exchangers, and the heat medium. A heat medium cycle in which a heating / cooling water generator for heating or cooling and circulating the heat medium between the plurality of parallel-connected direct contact heat exchangers is connected in an annular manner. 2. A direct contact heat exchanger comprising: a water-repellent filter that partitions a space in the direct contact heat exchanger up and down; a perforated plate disposed close to an upper surface of the water-repellent filter; An inlet for a heat exchange gas communicating with a space below the water repellent filter in the heat exchanger, and an inlet for a heat medium communicating with an upper part of the space above the water repellent filter in the direct contact heat exchanger. An outlet of a heat medium that communicates with a space above the water repellent filter in the direct contact heat exchanger below an inlet of the heat medium, and the water repellent filter in the direct contact heat exchanger. And an outlet for a heat exchange gas that communicates above the upper surface of the heat medium in the direct contact heat exchanger that flows into the space above from the heat medium inlet and flows out of the heat medium outlet. The water repellent fill Is configured to allow the heat exchange gas to pass therethrough but not through the heat medium, and the perforated plate converts the heat exchange gas that has passed through the water repellent filter into a number of uniform bubbles to form the water repellent filter. The temperature and humidity controller according to claim 1, wherein the temperature and humidity controller is configured to pass through the heat medium flowing above. 3. A direct contact heat exchanger, comprising: a water repellent filter that partitions a space in the direct contact heat exchanger up and down; a perforated plate disposed close to an upper surface of the water repellent filter; A lower inlet for the heat exchange gas communicating with the space below the water repellent filter in the heat exchanger, and a flow of the heat medium communicating with the upper part of the space above the water repellent filter in the direct contact heat exchanger. An inlet, an outlet of the heat medium communicating with the space above the water repellent filter in the direct contact heat exchanger below the inlet of the heat medium, and the water repellency in the direct contact heat exchanger. An outlet for a heat exchange gas that communicates above the upper surface of the heat medium in the direct contact heat exchanger that flows into the space above the filter from the inlet of the heat medium and flows out of the outlet of the heat medium,
Above the upper surface of the heat medium in the direct contact heat exchanger, which flows into the space above the water repellent filter in the direct contact heat exchanger from the inlet of the heat medium and flows out from the outlet of the heat medium. An upper inlet of a heat exchange gas communicating therewith, wherein a lower inlet of the heat exchange gas and an upper inlet of the heat exchange gas communicate outside the direct contact heat exchanger; The upper inlet of the gas and the outlet of the heat exchange gas are such that the length of the flow path of the heat exchange gas from the upper inlet of the heat exchange gas to the outlet of the heat exchange gas is relatively long. The water-repellent filter is configured to transmit heat exchange gas but not the heat medium, and the perforated plate transmits the heat exchange gas transmitted through the water-repellent filter. By making many uniform bubbles, The temperature and humidity controller according to claim 1, wherein the temperature and humidity controller is configured to pass through the heat medium flowing over the aqueous filter. 4. The temperature / humidity control apparatus according to claim 1, wherein the plurality of direct contact heat exchangers connected in parallel are installed in multiple stages in a vertical direction. 5. The hot / cold water generator according to claim 1, further comprising a heat medium cleaning means for cleaning the heat medium at an inlet side of the heat medium. Humidity control device. 6. A temperature sensor for detecting a temperature of the conditioned space, an operation mode detecting means for detecting an operation mode of the conditioned space, and an operation mode of the conditioned space detected by the operation mode detecting means. Blower control means for controlling the blower, based on an operation mode of the air-conditioned space detected by the operation mode detecting means and a temperature difference between the temperature of the air-conditioned space detected by the temperature sensor and a set temperature. The temperature and humidity controller according to any one of claims 1 to 5, further comprising a cold / hot water generator control means for controlling the cold / hot water generator. 7. An inlet pipe of the space to be conditioned, through which a heat exchange gas flows, which connects an outlet of the direct contact heat exchanger to an inlet of the space to be conditioned, an outlet of a blower, and an inlet of the direct contact heat exchanger. And a discharge pipe of the blower through which the heat exchange gas flows is communicated via a bypass valve, and the operation mode of the space to be air-conditioned detected by operation mode detection means and the temperature of the space to be air-conditioned detected by a temperature sensor are different. The temperature and humidity controller according to any one of claims 1 to 6, further comprising a bypass valve control unit that controls the bypass valve so that the bypass valve opens when a predetermined condition is satisfied. 8. The air conditioner according to claim 1, wherein the temperature sensor is installed at a position close to the air-conditioned space in an outlet pipe of the air-conditioned space through which a heat exchange gas that connects an outlet of the air-conditioned space and an inlet of the air blower flows. A temperature and humidity controller according to claim 7.