JPH10110974A - Air conditioner and air washer used therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid a wasteful energy consumption, accomplish an effective energy saving and simplify the constitution of an air conditioner by a method wherein fed air is cooled with an air cooling means and subsequently this cooled air is humidified by an air washer. SOLUTION: Air a1 to be adjusted is fed from an air feeding port 1 by an air supplying fan 5, passed in sequence through a cold water coil C, a burner H and an air washer WA, air a4 of which temperature and humidity are adjusted is taken out of an air feeding-out port 2 by an air feeding duct 6 and supplied to an air conditioned region (for example, a coating booth). A cooling amount (qc) of the cold water coil C in respect to the passing air a1 is adjusted by a cold water flow rate adjusting valve 7, and a fuel (q) supplied to the burner H is adjusted by a fuel flow rate adjusting valve 8, respectively. The air washer WA is constituted such that air-water contact portions (u1 to u5 ) having the same air passing sectional area from each other are arranged in one row in respect to an air passage and arranged in side-by-side relation in relation to an air flow. Air is passed through a packed material in wet state by supplied water from a water sprinkler 9, resulting in that passing air a3 is humidified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner equipped with an air washer as air humidifying means, and an air washer used for the air conditioner.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner using an air washer as an air humidifying means (see FIG. 7), an air washer WA is used.
Is always operating its air washer WA
A sufficient amount of water w is circulated and supplied to the entire air-water contact portion u by the circulation pump 12 to humidify the passing air a2 to a point near the saturation state (that is, the humidification limit of the air washer WA). And the air washer WA is equipped with a heating quantity qph upstream of the air washer WA in the air flow direction.
The air cooling means PH (burner in the example of FIG. 7) for adjusting the cooling amount is provided, and the air cooling means capable of adjusting the cooling amount qc is provided downstream of the air washer WA in the air flow direction. C (the cold water coil in the example of FIG. 7) and the air heating means RH (FIG.
In this example, a steam coil) and a final adjustment steam atomizing air humidifier NV for adjusting the humidification amount qv are arranged in this order from the upstream side.

In FIG. 7, reference numeral 4 denotes a filter for removing dust,
Reference numeral 10 denotes an eliminator for the air washer WA, and reference numeral 5 denotes an air supply fan that takes in the air a1 to be adjusted and sends out the adjusted air a6 to the air conditioning target area.

[0004] Sa is a steam atomizing air humidifying means NV.
A final temperature detection for detecting a temperature t6 of the air a6 (that is, air sent as conditioned air to the air-conditioning target area) on the downstream side (hereinafter, simply referred to as air temperature means dry-bulb temperature). Means, Sb is a final humidity detecting means for detecting the absolute humidity x6 of the air a6 downstream of the steam atomizing air humidifying means NV, and Sc is air between the air cooling means C and the reheating air heating means RH. ad temperature detecting means for detecting the temperature t4 of a4, Sd
Is a water temperature detecting means for detecting the temperature tw of the circulating water w in the air washer WA, and M is the detecting means Sa to
Air heating means P for preheating based on the detection information of Sd
H, an air washer WA, an air cooling unit C, an air heating unit RH for reheating, and an air conditioning control unit that automatically adjusts each of the steam spray type air humidification unit NV.

In other words, in this air conditioner (FIGS. 8 and 9)
), The state of the introduced air a1 (temperature t1, absolute humidity x
1) is the target state of air a6 to be sent to the air conditioning target area
The state point indicated by the mark: the target temperature ts, the target absolute humidity xs), when it is in the region r1 as shown in FIG.
In the case of being in the region r2 as shown in FIG.
As shown in each of these figures, when the air is in the region r3 as shown in (c), the preheating air heating means PH and the steam atomizing air humidifying means NV are stopped, and first, the introduced air a1 ( = A2) is gradually humidified by the air washer WA to near the saturation state (state change substantially along the iso-wet bulb temperature line t1 '). Subsequently, the humidified air a3 is cooled and dehumidified by the air cooling means C. Further, the cooling and dehumidifying air a4 is heated (reheated) by reheating air heating means RH.

In this adjustment mode, the air-conditioning control means M controls the air temperature so that the temperature t4 of the air a4 after cooling and dehumidification becomes the predetermined temperature ts4 after cooling based on the detection information of the post-cooling temperature detecting means Sc. By adjusting the cooling amount qc of the cooling means C, the air a6 (= a5) to be sent to the air conditioning target area
Absolute humidity x6 (= absolute humidity of air a4 after cooling and dehumidification)
Is adjusted to the above-mentioned target absolute humidity xs, and based on the detection information of the final temperature detecting means Sa, the reheating air heating means RH
By adjusting the heating amount qrh, the temperature t6 of the air a6 (= air a5 after heating) sent to the air conditioning target area is adjusted to the target temperature ts.

The state of the introduced air a1 (temperature t1, absolute humidity x1) is different from the target state (target temperature ts, target absolute humidity xs) of the air a6 sent to the air-conditioning target area in FIG.
When the air cooling means C is in a stopped state, as shown in FIG.
1 is heated (preheated) by preheating air heating means PH,
Subsequently, the heated (preheated) air a2 is supplied to the air washer WA.
Humidification (a state change substantially along the iso-wet bulb temperature line t2 '), and the humidified air a3 (= a4) is subsequently heated (reheated) by the reheating air heating means RH. Then, the heating (reheating) air a5 is humidified by the steam atomizing air humidifying means NV.

In this adjustment mode, the air-conditioning control means M determines the temperature based on the information detected by the water temperature detection means Sd.
The water temperature tw of the circulating water w in the air washer WA is set to a predetermined water temperature (in other words, the wet-bulb temperature t3 'of the air a3 after passing through the air washer WA is changed to the predetermined wet-bulb temperature ts3'
), The heating amount qp of the preheating air heating means PH
By adjusting h, it is possible to obtain an absolute humidity close to the target absolute humidity xs by humidification by the air washer WA, and then heating the reheating air heating unit RH based on the detection information of the final temperature detection unit Sa. By adjusting the amount qrh,
By adjusting the temperature t6 of the air a6 sent to the air conditioning target area to the target temperature ts and adjusting the humidification amount qv of the steam spray type air humidification means NV based on the detection information of the final humidity detection means Sb, the air conditioning is performed. Absolute humidity x of air a6 sent to target area
6 was adjusted to the target absolute humidity xs described above.

In the division of the regions r1 to r4, a boundary line between the region r1 and the regions r2 and r3 is an iso-absolute humidity line, a boundary line between the region r2 and the region r3, and a boundary line between the region r3 and the region r4. The boundaries are respectively iso-wet bulb temperature lines.

[0010]

However, in the above conventional apparatus, the target state (target temperature ts, target absolute humidity xs)
With respect to the region r1, the region r2, or the region r
In order to adjust the introduced air a1 in 3 to the target state, the air is cooled by the air cooling means C after humidification by the air washer WA, and is cooled by the air heating means RH for reheating after cooling by the air cooling means C. Since contradictory adjustments such as heating (reheating) are required, there has been a problem that energy consumption is large in air adjustment.

The target air (target temperature ts, target absolute humidity xs) corresponds to the introduced air a1 in the region r4.
Is adjusted to the target state, air heating means PH for preheating, air washer WA, air heating means RH for reheating, and steam spray air humidification NV for final adjustment are used as device configurations. In particular, the region r
1 or the introduced air a1 in the region r2 or the region r3
In order to be able to adjust to the target state, the above-mentioned air cooling means C is required in addition to the above four elements. Therefore, the apparatus configuration becomes complicated, the apparatus becomes large, and the apparatus cost is reduced. There is a problem that the cost is high and the pressure loss of the entire apparatus in the air ventilation is increased, so that the blowing power is increased.

In view of the above circumstances, the main object of the present invention is to adopt a rational device configuration to avoid energy waste and effectively achieve energy saving, and to effectively simplify the device configuration. The point is to be able to achieve.

[0013]

[Means for Solving the Problems]

[1] According to the first aspect of the present invention, as shown in FIG. 3B, the state (temperature t1, absolute humidity x1) of the introduced air a1 is different from the target state (target temperature ts, target absolute humidity xs). In the case of being in the region r2, first, the introduced air a1
Is cooled by the air cooling means C, and then the cooling air a2 (= a3) is humidified by the air washer WA.

In this adjustment mode, by adjusting the cooling amount qc of the air cooling means C to adjust the temperature t2 of the air a2 (= a3) after passing through the air cooling means, the air washer accompanying this temperature adjustment is adjusted. With the temperature change of the air a4 after passing, the temperature t4 of the air a4 after passing through the air washer (that is, the air sent to the air conditioning target area) is set to the target temperature ts.
By adjusting the humidification amount qw of the air washer WA, the absolute humidity x4 of the air a4 after passing through the air washer (air sent to the air conditioning target area) is adjusted to the target absolute humidity xs
Adjust to

That is, according to the first aspect of the present invention,
The introduced air a1 in the region r2 is set in the target state (target temperature t).
s, target absolute humidity xs), the air is cooled by the air cooling means and then dehumidified by the air cooling means as in the above-mentioned conventional apparatus, and the air heating means is reheated after cooling by the air cooling means. It is possible to avoid a large adjustment of energy waste such as heating (reheating) by the above, thereby effectively achieving energy saving.

The air cooling means C and the air washer WA
Since only the two can adjust the introduced air a1 in the region r2 to the target state, as an air conditioner for the air in the region r2, the air washer, the air cooling means, and the reheating air heating means as in the above-described conventional device are used. Compared to a system with three components, the device configuration can be simplified,
It is possible to achieve a reduction in blower power due to a reduction in equipment cost and a reduction in pressure loss.

[2] According to the second aspect of the present invention, FIG.
As shown in (c) and FIG. 4 (d), the state (temperature t1, absolute humidity x1) of the introduced air a1 with respect to the target state (target temperature ts, target absolute humidity xs) is the above-described region r3 or region r.
4, first, the introduced air a1 (= a2) is heated by the air heating means H, and then the heated air a
3 is humidified by an air washer WA.

In this adjustment mode, by adjusting the heating amount qh of the air heating means H to adjust the temperature t3 of the air a3 after passing through the air heating means, the air after passing through the air washer accompanying the temperature adjustment is adjusted. With the temperature change of a4, the temperature t4 of the air a4 after passing through the air washer (that is, the air sent to the air conditioning target area) is adjusted to the target temperature ts,
Further, by adjusting the humidification amount qw of the air washer WA, the absolute humidity x4 of the air a4 after passing through the air washer (air sent to the air conditioning target area) is adjusted to the target absolute humidity xs.

That is, according to the second aspect of the present invention,
The introduction air a1 in the region r3 is set in the target state (target temperature t).
s, target absolute humidity xs), the air is cooled by the air cooling means and then dehumidified by the air cooling means as in the above-mentioned conventional apparatus, and the air heating means is reheated after cooling by the air cooling means. It is possible to avoid a large adjustment of energy waste such as heating (reheating) by the above, thereby effectively achieving energy saving.

The air heating means H and the air washer WA
Only the two can adjust the introduced air a1 in the region r3 to the target state. Therefore, as an air conditioner for the air in the region r3, the air washer, the air cooling means, and the reheating air heating means as in the above-described conventional apparatus are used. Compared to a system with three components, the device configuration can be simplified,
It is possible to achieve a reduction in blower power due to a reduction in equipment cost and a reduction in pressure loss.

Further, the introduced air a1 in the region r4
Is adjusted to the target state (target temperature ts, target absolute humidity xs) in comparison with the humidification by the air washer.
Since it is possible to eliminate the need for a steam spray type air humidifier, which increases the cost of steam generation, operating costs can be reduced,
Since only the air heating means H and the air washer WA can adjust the introduced air a1 in the area r4 to the target state, as an air conditioning apparatus for the air in the area r4, the air heating means for preheating as in the above-described conventional apparatus can be used. Compared to a system equipped with four members, an air washer, an air heating unit for reheating, and a steam atomizing air humidifying unit for final adjustment, the apparatus configuration can be greatly simplified, and the apparatus can be downsized and the apparatus can be downsized. It is possible to extremely effectively achieve a reduction in blowing power by reducing cost and pressure loss.

[3] According to the third aspect of the invention, the target air (target temperature ts, target absolute humidity xs) corresponds to the intake air a.
The state 1 (temperature t1, absolute humidity x1) corresponds to the region r2.
As in the case of the above-mentioned claim 1, when the operation of the air heating means H is stopped, as shown in FIG.
In the adjustment mode shown in (b), by adjusting the cooling amount qc of the air cooling means C, the temperature t4 of the air a4 (air sent to the air conditioning target area) after passing through the air washer is adjusted to the target temperature ts, and By adjusting the humidification amount qw of the air washer WA, the air a4 after passing through the air washer can be adjusted.
The absolute humidity x4 of (air sent to the air conditioning target area) is adjusted to the target absolute humidity xs.

If the state (temperature t1, absolute humidity x1) of the introduced air a1 with respect to the target state (target temperature ts, target absolute humidity xs) is in the region r3 or region r4, the air cooling means C 4 (C) and FIG. 4 in a state in which the operation of
In the adjustment mode shown in (d), by adjusting the heating amount qh of the air heating means H, the temperature t4 of the air a4 after passing through the air washer (air sent to the air conditioning target area) is adjusted to the target temperature ts, and By adjusting the humidification amount qw of the air washer WA, the air a4 after passing through the air washer can be adjusted.
The absolute humidity x4 of (air sent to the air conditioning target area) is adjusted to the target absolute humidity xs.

Further, as shown in FIG. 3A, the state (temperature t1, absolute humidity x1) of the introduced air a1 with respect to the target state (target temperature ts, target absolute humidity xs) falls within the region r1. In some cases, in the state where the operation of the air washer WA is stopped, the introduced air a1 is cooled and dehumidified by the air cooling means C, and then the cooled dehumidified air a2 is heated by the air heating means H. In this adjustment mode, a value equal to the absolute humidity x2 of the air a2 after cooling and dehumidification is obtained by adjusting the cooling amount qc of the air cooling means C to adjust the absolute humidity x2 of the air a2 after cooling and dehumidification. The absolute humidity x3 (= x4) of the air a3 after passing through the air heating means (that is, the air a4 sent to the air conditioning target area) is adjusted to the target absolute humidity xs, and the heating amount qh of the air heating means H is adjusted. Do And, the temperature t3 of the air after passing through the air heating unit a3 (air a4 sent to the air-conditioned area) (= t
4) is adjusted to the target temperature ts.

That is, according to the third aspect of the present invention,
By simply equipping the air cooling means C, the air heating means H, and the air washer WA, the introduced air a1 is reduced to the regions r1 to r4.
In this regard, in order to respond to the air in any of the regions r1 to r4, the air heating means for preheating, the air washer, the air cooling means, and the reheat Compared to the above-mentioned conventional device which requires five members of air heating means for the purpose and steam spray humidification means for the final adjustment,
The configuration of the apparatus can be greatly simplified, and downsizing of the apparatus, reduction of the cost of the apparatus, and reduction of the blowing power due to reduction of the pressure loss can be achieved very effectively.

As in the first and second aspects of the present invention, the case where the introduced air a1 in the region r2 or the region r3 is adjusted to the target state is the same as that of the above-described conventional device. As described above, it is possible to avoid a large adjustment of energy waste such as humidification by an air washer and then dehumidification by an air cooling means, and cooling by an air cooling means and then heating (reheating) by an air heating means for reheating.
In the case where the introduced air a1 in the region r4 is adjusted to the target state, it is possible to achieve energy saving effectively, and as in the case of the invention described in claim 2 above, the steam spray type air which increases the cost for steam generation Since no humidifying means is required, operating costs can be reduced.

[4] According to the fourth aspect of the present invention, when the above-described third aspect of the present invention is implemented (FIGS.
(B), FIGS. 4 (c) and 4 (d)), temperature and humidity detecting means for detecting the temperature t4 and absolute humidity x4 of the air a4 downstream of the air washer WA, and the temperature and humidity detecting means Air conditioning control means for automatically adjusting the cooling amount qc of the air cooling unit C, the heating amount qh of the air heating unit H, and the humidification amount qw of the air washer WA based on the detection information of the air cooling unit C.

The mode is switched depending on the state of the introduced air a1 (temperature t1, absolute humidity x1) with respect to the target state (target temperature ts, target absolute humidity xs) in any one of the regions r1 to r4. Adjusting mode to first by means
To the third mode, the first mode is an adoption mode when the introduced air a1 is in the region r2, and the second mode is the adopted mode when the introduced air a1 is in the region r3.
Alternatively, the mode is the adoption mode when in the region r4, and the third mode is the adoption mode when the introduced air a1 is in the region r1.

As the automatic adjustment by the air-conditioning control means, in the first mode, the air-conditioning control means stops the operation of the air heating means H while the air washer W
The temperature t4 of the air a4 on the downstream side of A is equal to the target temperature ts.
The cooling amount qc of the air cooling means C is adjusted so that
The humidification amount qw of the air washer WA is adjusted so that the absolute humidity x4 of the air a4 on the downstream side of the air washer WA becomes the target absolute humidity xs.
Is automatically adjusted to the target state (target temperature ts, target absolute humidity xs) in the adjustment mode shown in FIG. 3B, and the adjusted air a4 is supplied to the air conditioning target area. I do.

In the second mode, the air-conditioning control means stops the operation of the air cooling means C so that the temperature t4 of the air a4 downstream of the air washer WA becomes the target temperature ts. The heating amount qh of the heating means H is adjusted, and the absolute humidity x4 of the air a4 on the downstream side of the air washer WA becomes the target absolute humidity xs.
By adjusting the humidification amount qw of the air washer WA,
The introduced air a1 in the region r3 or the region r4 is automatically adjusted to the target state (target temperature ts, target absolute humidity xs) in the adjustment mode shown in FIG. 4 (c) or FIG. 4 (d).
The conditioned air a4 is supplied to the air conditioning target area.

Further, in the third mode, the air-conditioning control means stops the operation of the air washer WA so that the absolute humidity x4 of the air a4 downstream of the air washer Xw becomes the target absolute humidity xs. , The cooling amount qc of the air cooling means Xc is adjusted, and the air washer WA is adjusted.
By adjusting the heating amount qh of the air heating means H such that the temperature t4 of the air a4 on the downstream side of the air reaches the target temperature ts, the introduced air a1 in the region r1 is reduced as shown in FIG.
In the adjustment mode shown in (a), the target state (target temperature ts, target absolute humidity xs) is automatically adjusted, and the adjusted air a4 is supplied to the air conditioning target area.

That is, according to the fourth aspect of the present invention,
For each case where the introduced air a1 is in the regions r1 to r4, the air adjustment condition is automatically adjusted based on the detection information of the air adjustment condition to adjust the delivery air a4 to the air conditioning target area to the target condition. Only needs to be provided with a detecting means for detecting the temperature t4 and the absolute humidity x4 of the air a4 on the downstream side of the air washer. In this regard, in detecting the air adjustment state required for the automatic adjustment, the detection configuration can be simplified. This is advantageous in that respect.

According to the fourth aspect of the present invention, the mode switching means does not use a method of switching the mode by manual operation, but introduces the introduced air a in the regions r1 to r4.
A mode may be automatically switched based on the detection of the state of the introduced air a1 in response to the change of the existence area of the air.

[5] According to the fifth aspect of the present invention, when implementing the above-described third aspect of the invention (FIGS.
(B), FIG. 4 (c), FIG. 4 (d)), a first detecting means for detecting the absolute humidity x4 of the air a4 on the downstream side of the air washer WA as an air adjusting state detecting means, and air heating. Air a between means H and air washer WA
3, a second detecting means for detecting the wet-bulb temperature t3 ', an third means for detecting the absolute humidity x2 of the air a2 between the air cooling means C and the air heating means H, and an air cooling means C.
Bulb temperature t of air a2 between air and air heating means H
And 4th detection means for detecting 2 ′.

Further, based on the detection information of the first to fourth detection means, the cooling amount qc of the air cooling means C, the heating amount qh of the air heating means H, and the humidification amount q of the air washer WA are determined.
Air conditioning control means for automatically adjusting w is provided.

As an automatic adjustment by the air conditioning control means, when the absolute humidity x2 of the air a2 between the air cooling means C and the air heating means H is lower than the target absolute humidity xs, the wet bulb temperature of the air a2 The air conditioning control means adjusts the cooling amount qc of the air cooling means C so that t2 'becomes the target wet bulb temperature ts' corresponding to the target state (target temperature ts, target absolute humidity xs). a
2 is lower than the target absolute humidity xs (that is, the introduced air a1 is in any of the regions r2, r3, and r4), the wet bulb temperature t2 ′ of the air a2 is lower than the target absolute humidity xs. It is lower than the target wet bulb temperature ts' (that is, the introduced air a1 is in the region r3 or the region r4).
In the case, the operation of the air cooling means C is substantially stopped by the execution of the cooling amount adjustment itself, and the operation of FIG.
(C) or the adjustment mode shown in FIG.

Conversely, even when the absolute humidity x2 of the air a2 is lower than the target absolute humidity xs, the air a2
2 is higher than the target wet-bulb temperature ts' (that is, the introduced air a1 is in the region r2), the cooling amount is adjusted so that the adjustment mode shown in FIG. The cooling stroke part is realized.

On the other hand, when the absolute humidity x2 of the air a2 is equal to or higher than the target absolute humidity xs (that is, when the introduced air a1 is in the area r1), the absolute humidity x2 of the air a2 becomes equal to the target absolute humidity xs The air conditioning control means adjusts the cooling amount qc of the air cooling means C so that
The cooling and dehumidifying process of the adjustment mode shown in FIG. 3A is realized.

Further, together with the adjustment of the cooling amount, the wet bulb temperature t3 'of the air a3 between the air heating means H and the air washer WA is adjusted to the target wet bulb temperature ts' corresponding to the target state. Air conditioning control means is air heating means H
By adjusting the heating amount qh of the air cooling means C in the case where the cooling amount adjustment is in the adjustment mode shown in FIG. 3B (that is, when the introduced air a1 is in the region r2, Air a2
(The case where the wet bulb temperature t2 'is adjusted to the target wet bulb temperature ts'), the operation of the air heating means H is substantially stopped by the execution of the heating amount adjustment itself, and FIG. The adjustment mode shown is maintained.

On the other hand, when the cooling amount adjustment is in the adjustment mode shown in FIG. 3A, FIG. 4C, or FIG. r1, the region r3, and the region r4), these heating amounts are adjusted to obtain the values shown in FIGS.
The heating process portion of the adjustment mode shown in each of FIGS. 4C and 4D is realized.

Further, together with the cooling amount adjustment and the heating amount adjustment, the air-conditioning control means controls the air washer WA so that the absolute humidity x4 of the air a4 downstream of the air washer WA becomes the target absolute humidity xs. By adjusting the humidification amount qw, the cooling amount adjustment shown in FIG.
(A) When the air a1 is in the region r1 and the cooling amount of the air cooling means C is adjusted to the absolute humidity x2 of the air a2.
Is adjusted to the target absolute humidity xs), the operation of the air washer WA is substantially stopped by executing the humidification amount adjustment itself, and the adjustment form shown in FIG. To

On the other hand, when the cooling amount adjustment is in the adjustment mode shown in FIG. 3 (b), FIG. 4 (c) or FIG. 4 (d) (that is, when the introduced air a1 is in the region r2, the region r3, and the region r4), the humidification amount is adjusted to obtain the values shown in FIGS.
The humidification process portion of the adjustment mode shown in each of FIGS. 4C and 4D is realized.

That is, according to the fifth aspect of the present invention,
The air a4 to be sent to the air-conditioning target area can be automatically adjusted to the target state by automatically responding to the change in the area where the introduced air a1 exists in the areas r1 to r4.

The air heating means H and the air washer WA
The absolute humidity x3 of the air a3 between the air cooling means C and the air heating means H is equal to the absolute humidity x2 of the air a2 between the air cooling means C and the air heating means H. The third detecting means for detecting the absolute humidity x2 of the air a2 between the air cooling means C and the air heating means H actually detects the absolute humidity x2 of the air a2 between the air cooling means C and the air heating means H. Instead, a device that detects the absolute humidity x3 of the air a3 between the air heating means H and the air washer WA may be adopted.

The wet bulb temperature t4 'of the air a4 downstream of the air washer WA is substantially equal to the wet bulb temperature t3' of the air a3 between the air heating means H and the air washer WA. Means H and air washer W
The second detecting means for detecting the wet bulb temperature t3 'of the air a3 between the air heater A and the air heater A actually detects the wet bulb temperature t3' of the air a3 between the air heating means H and the air washer WA. Instead, the air a4 on the downstream side of the air washer WA
May be adopted to detect the wet bulb temperature t4 ′.

[6] In the invention according to claim 6, a plurality of water / water contact portions capable of individual water supply start / stop operations are arranged in parallel with the air flow as the water / water contact portions in the air washer. Accordingly, the humidification amount qw of the air washer as a whole with respect to the passing air can be changed stepwise by changing the number of those that perform the water supply operation (that is, the number of those that perform the humidifying action) among these air-water contact portions.

In addition, a bypass air path that bypasses the air-water contact section is provided, a bypass-side damper that adjusts the amount of air passing through the bypass air path, and a passage through a specific air-water contact section of the air-water contact section. By providing the contact-portion-side damper for adjusting the air volume, the opening degree of the contact-portion-side damper and the bypass-side damper is reciprocally adjusted under the water supply operation of the specific air-water contact portion (that is, one of the closed-side damper is closed). (The other is adjusted to the opening side in synchronization with the opening adjustment), and the airflow passing through the specific air / water contact portion and the airflow passing through the bypass air passage are reciprocally increased or decreased, thereby increasing the specific airflow. The humidification amount at the water contact portion is changed, and thereby, the humidification amount qw of the entire air washer is continuously changed, in addition to the stepwise change of the humidification amount qw by changing the number of water supply operations of the air / water contact portion. To make fine adjustments That.

Then, the humidification amount qw is changed stepwise by changing the number of water supply operations of these air / water contact portions, and the humidification amount qw is set by reciprocal opening adjustment of the contact portion side damper and the bypass side damper.
By performing in combination with the continuous fine adjustment of the above, the humidification amount qw of the air washer as a whole can be continuously changed at each adjustment level so as to be able to finely adjust with high accuracy, and to be able to be adjusted over a large adjustment range. I do.

That is, according to the sixth aspect of the present invention,
As described above, the humidification amount qw of the air washer can be adjusted over a large adjustment range while being continuously changed at each adjustment level and finely adjusted with high accuracy. Also, the humidity of the air after passing through the air washer can be accurately adjusted to the target humidity.

Further, while the air volume adjustment by the damper is used for the humidification amount adjustment, the airflow passing through the specific air / water contact portion and the airflow of the bypass air passage are adjusted by reciprocal opening adjustment of the contact portion side damper and the bypass side damper. Since the humidification amount qw is adjusted by increasing / decreasing the passing air volume in a reciprocal manner, it is possible to prevent the passing air volume of the air washer as a whole from changing due to the humidification amount adjustment. An air washer having more excellent adjustment performance can be provided, and in the implementation of the invention according to claims 1 to 5 described above,
By using this air washer, the adjustment accuracy of the air a4 sent to the air conditioning target area can be effectively increased.

[7] In the invention of the seventh aspect, in carrying out the invention of the sixth aspect, the air passing through the bypass air passage and the specific air-water contact portion is removed from the air-water contact portion. By providing an auxiliary fan that forcibly ventilates the bypass air passage and the specific air / water contact part in a state where it is separated from the air that passes through other than the specific air / water contact part, It is possible to stably ventilate the required amount of air to the side of the bypass air passage and the specific air-water contact part, by resisting the ventilation resistance of the side damper and the bypass side damper. In the humidification amount adjustment by the reciprocal opening degree adjustment, a high adjustment effect is stably obtained.

[0052]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] FIG. 1 shows an air conditioner using an air washer as an air humidifying means. A cooling water coil C as an air cooling means, an air heating device are provided in an apparatus casing 3 in which an air inlet 1 and an air outlet 2 are formed. A burner H as a means and an air washer WA as an air humidifying means are arranged in that order from the upstream side in the air flow direction.

Reference numeral 4 denotes a dust filter, and reference numeral 5 denotes an air supply fan. The air supply fan 5 introduces air a1 to be adjusted (outside air in this embodiment) from the air inlet 1 into the apparatus casing. The introduced air a1 is sequentially passed through the cold water coil C, the burner H, and the air washer WA, and the air a4 whose temperature and humidity has been adjusted in the sequential passing process is taken out from the air outlet 2 and air-conditioned through the air supply duct 6. Area (in this embodiment, a painting booth).

Reference numeral 7 denotes a chilled water flow control valve for adjusting the chilled water flow to the chilled water coil C. The chilled water flow adjusting valve 7 adjusts the flow of the chilled water cw to control the cooling amount qc of the chilled water coil C with respect to the passing air a1. adjust. Reference numeral 8 denotes a fuel flow rate adjusting valve for adjusting the amount of fuel supplied to the burner H.
The heating amount qh of the burner H with respect to the passing air a2 is adjusted.

As shown in FIGS. 1 and 2, the air washer WA traverses the first to fifth air-water contact portions u1 to u5 having the same air passage sectional area with respect to the air path in the apparatus casing. The air-water contact parts u1
u5 is arranged in parallel with the air flow.
In the present embodiment, each of the air-water contact portions u1 to u5 is a filling-type air washer formed by a filler material e, and in each of these air-water contact portions u1 to u5, water is supplied by the water supply from the watering device 9. The passing air a3 is humidified by passing air through the filler e in the state.

10 is an eliminator, 11 is a gas-water contact part u
A water tank for storing water w to be supplied to 1 to u5 and receiving surplus water w flowing down from the air-water contact portions u1 to u5, and a storage tank 12 for storing water w in the water tank 11 to the watering tool 9 via a water supply path 13. The circulation pump 14 for supplying is an automatic replenishing water valve for keeping the amount of water stored in the water tank 11 constant.

The sprinkling device 9 includes first to fifth air-water contact portions u1 to u1.
u5 is provided with a dedicated water supply amount, and each of the dedicated watering tools 9 is provided with an individual water supply valve v at a branch portion of the water supply passage 13 for each of the watering tools 9. The first to fifth air / water contact sections u1 to u5 are provided by the water supply start / stop operation for each of the air / water contact sections u1 to u5 by opening and closing v.
, The humidification amount qw for the passing air a3 as the whole air washer
Can be changed step by step for each fixed amount Δqw.

In this air washer WA,
A bypass air passage fx bypassing the first to fifth air / water contact portions u1 to u5, and a dedicated guide air passage fy for the first air / water contact portion u1 as a specific air / water contact portion are provided.
Of the air a3 that has passed through the burner H, the air a that passes through the bypass air passage fx and the dedicated guide air passage fy
An auxiliary fan F for forcibly ventilating the bypass airflow fx and the dedicated guide airflow fy is provided in a state where the airflow 3 'is separated from the air a3 "that allows the airflow 3' to pass through the second to fifth air-water contact portions u2 to u5. Further, a bypass-side damper Dx for adjusting the passing airflow Qx of the bypass airflow passage fx and the passing airflow Qy of the dedicated guide airflow fy (that is, the passing airflow of the first air / water contact portion u1 as the specific air / water contact portion). To adjust the contact side damper Dy
Is provided.

In other words, while supplying water to the first air / water contact portion u1, the bypass side damper Dx and the contact portion side damper Dy
Is reciprocally adjusted, and the passing airflow Qx of the bypass airflow path fx and the passing airflow Qy of the first air / water contact portion u1 are
By changing the humidification amount in the first air / water contact portion u1 by adjusting the passing air volume Qy of the first air / water contact portion u1 in such a manner that the sum thereof is increased / decreased while keeping the sum constant. The humidification amount qw for the passing air a3 as the entire air washer can be continuously changed and finely adjusted while keeping the passing air volume as a whole air washer constant.

The above two humidification amount changing systems, that is, the second to fifth air-water contact portions u2 to u5 are described below.
Humidification amount q by changing the number of water supply states
By performing the stepwise change of w in combination with the continuous fine adjustment of the humidification amount qw by adjusting the degree of opening of the bypass-side damper Dx and the contact-portion-side damper Dy on the contrary, the air washer for the passing air a3 as a whole is realized. Humidification amount qw,
It is possible to make adjustments over a large adjustment range while continuously changing each adjustment level to enable fine adjustment with high accuracy.

Reference numeral 15 designates a ventilation resistance of the same degree as the ventilation resistance of the first air / water contact portion u1 to the bypass air passage fx so that both the bypass damper Dx and the contact portion damper Dy have a resistance of 50%.
This is a perforated plate-shaped resistor for equalizing the passing airflow Qx of the bypass airflow path fx and the passing airflow of the first air / water contact portion u1 when the opening degree is in the% range.

On the other hand, St and Sx are the temperature t4 of the air a4 and the absolute humidity x4 downstream of the air washer WA.
A temperature sensor and a humidity sensor as temperature and humidity detecting means for detecting the temperature, and MA is the temperature sensor St and the humidity sensor S
A controller as air conditioning control means for automatically adjusting the cooling amount qc of the chilled water coil C, the heating amount qh of the burner H, and the humidification amount qw of the air washer WA based on the detection information of x, and K sets the adjustment mode to the first mode. A mode setting device as mode switching means for selectively switching between the second mode and the third mode;
L is a target setter for setting a target state (target temperature ts, target absolute humidity xs) of the air a4 to be sent to the air-conditioning target area, and the controller MA is set to a mode set by the mode setter K. Accordingly, the following controls (A) to (D) are selectively executed.

(A) In the first mode (see FIG. 3 (b)), while the operation of the burner H is stopped, the temperature sensor S
The chilled water coil C is adjusted by adjusting the chilled water flow control valve 7 such that the temperature t4 of the air a4 downstream of the air washer WA becomes the target temperature ts based on the detected temperature t4 of the air washer WA.
And the bypass damper Dx is adjusted so that the absolute humidity x4 of the air a4 downstream of the air washer WA becomes the target absolute humidity xs based on the absolute humidity x4 detected by the humidity sensor Sx. Contact part side damper Dy
The humidification amount qw of the air washer WA is adjusted by adjusting the opening degree contrary to the above, and opening and closing the individual water supply valve v.

That is, in the first mode, FIG.
As shown in (b), with respect to the target state (target temperature ts, target absolute humidity xs) set by the target setter L,
When the state of the introduced air a1 (temperature t1, absolute humidity x1) is in the region r2, first, the introduced air a1 is cooled by the cold water coil C, and then the cooled air a2 (= a
3) An adjustment mode of humidifying by the air washer WA is adopted.

In this adjustment mode, the cooling amount qc of the chilled water coil C is adjusted to adjust the air a after passing through the cooling coil.
2 (= a3), the temperature t4 of the air a4 after passing through the air washer is adjusted to the target temperature ts with the temperature change of the air a4 after passing through the air washer accompanying the temperature adjustment. By adjusting the humidification amount qw of the air washer WA, the absolute humidity x4 of the air a4 after passing through the air washer is adjusted to the target absolute humidity xs.

(B) In the second mode (see FIGS. 4 (c) and 4 (d)), the operation of the chilled water coil C is stopped, and the air washer WA is used based on the detected temperature t4 of the temperature sensor St. Also, the heating amount qh of the burner H is adjusted by adjusting the fuel flow control valve 8 so that the temperature t4 of the air a4 on the downstream side becomes the target temperature ts, and based on the detected absolute humidity x4 of the humidity sensor Sx, the air The bypass damper Dx and the contact-portion damper Dy are adjusted so that the absolute humidity x4 of the air a4 downstream of the washer WA becomes the target absolute humidity xs, and the individual water supply valve v
The humidification amount qw of the air washer WA is adjusted by the opening and closing operation of.

That is, in the second mode, FIG.
As shown in (c) and FIG. 4 (d), the target state (target temperature ts, target absolute humidity x
s), when the state of the introduced air a1 (temperature t1, absolute humidity x1) is in the region r3 or the region r4, first, the introduced air a1 (= a2) is heated by the burner H,
Subsequently, an adjustment mode is adopted in which the heated air a3 is humidified by the air washer WA.

In this adjustment mode, the burner H
Is adjusted by adjusting the heating amount qh of the air a3 after passing through the burner by adjusting the temperature t3 of the air a3 after passing through the burner. Is adjusted to the target temperature ts, and by adjusting the humidification amount qw of the air washer WA, the absolute humidity x of the air a4 after passing through the air washer is adjusted.
4 is adjusted to the target absolute humidity xs.

(C) In the third mode (see FIG. 3A), in a state where the operation of the air washer WA is stopped, based on the absolute humidity x4 detected by the humidity sensor Sx, the air downstream of the air washer WA is provided. The cooling amount qc of the chilled water coil C is adjusted by adjusting the chilled water flow control valve 7 so that the absolute humidity x4 of a4 becomes the target absolute humidity xs, and based on the detected temperature t4 of the temperature sensor St, the air washer W
The heating amount qh of the burner H is adjusted by adjusting the fuel flow adjusting valve 8 so that the temperature t4 of the air a4 downstream of A becomes the target temperature ts.

That is, in the third mode, FIG.
As shown in (a), with respect to the target state (target temperature ts, target absolute humidity xs) set by the target setter L,
When the state of the introduced air a1 (temperature t1, absolute humidity x1) is in the region r1, first, the introduced air a1 is cooled and dehumidified by the cold water coil C, and then the cooled dehumidified air a2
Is heated by the burner H.

In this adjustment mode, the cooling amount qc of the cold water coil C is adjusted to adjust the absolute humidity x2 of the air a2 after the cooling and dehumidification. By adjusting the absolute humidity x3 (= x4) of the post-burner air a3 (= a4) having the same value to the target absolute humidity xs, and adjusting the heating amount qh of the burner H, the post-burner air a3 ( = A4) is adjusted to the target temperature xs.

In short, in the first embodiment, when the outside air as the introduced air a1 is in the above-mentioned region r2 with respect to the target state (the target temperature ts and the target absolute humidity xs) (generally, the intermediate period close to the summer period) ), The second mode when the outside air which is the introduced air a1 is in the region r3 or the region 4 (generally in the winter or in the middle of the winter). When the outside air which is the introduced air a1 is in the region r1 (generally in summer), the third mode is set by the mode setting device K, respectively.

The controller M according to these setting modes
A is controlled as described above so that the introduced air a
The air a4 to be sent to the air-conditioning target area can be automatically adjusted to the target state (target temperature ts, target absolute humidity xs) for each of the cases where the outside air which is 1 is in the above-mentioned regions r1 to r4.

[Second Embodiment] FIG. 5 shows the air conditioner shown in the first embodiment described above, with the configuration changed in terms of the automatic control of air adjustment. , The burner H, the arrangement of the air washer WA, and the structure of the air washer WA are the same as those of the first embodiment.

In this air conditioner, S1 is a post-stage humidity sensor as first detecting means for detecting the absolute humidity x4 of air a4 downstream of the air washer WA, and S2 is air a3 between the burner H and the air washer WA. A second-stage wet-bulb temperature sensor as second detection means for detecting the wet-bulb temperature t3 'of the first stage, and a third-stage humidity as third detection means for detecting the absolute humidity x2 of the air a2 between the cold water coil C and the burner H A sensor S4 for detecting a wet bulb temperature t2 'of the air a2 between the cold water coil C and the burner H;
The former stage is a wet bulb temperature sensor as a detecting means.

Further, MB is composed of these four sensors S1 to S
4 is a controller as air conditioning control means for automatically adjusting the cooling amount qc of the chilled water coil C, the heating amount qh of the burner H, and the humidification amount qw of the air washer WA based on the detection information of 4. , Regardless of the state of the introduced air a1 in any of the regions r1 to r4, the following (D
-1) to (D-4).

(D-1) FIG. 6 in which the adjustment relationship between the absolute humidity x2 of the air a2 between the cold water coil C and the burner B and the wet bulb temperature t2 'of the air a2 between the cold water coil C and the burner H is preset. In the first setting relationship Z1 shown in (a), the wet bulb temperature t corresponding to the absolute humidity x2 of the air a2 between the cold water coil C and the burner B detected by the preceding humidity sensor S3
2 ′ is a sub-target wet bulb temperature ts2 ′ for adjusting the cold water coil.

FIG. 6A showing the first setting relation Z1.
In the equation, xs is a target absolute humidity, and ts' is a target wet bulb temperature corresponding to a target state (target temperature ts, target absolute humidity xs).

(D-2) Wet bulb temperature t2 'of air a2 between chilled water coil C and burner H, and cooling amount qc of chilled water coil C
And the above-mentioned sub-target wet bulb temperature ts2 ′.
In the second setting relationship Z2 shown in FIG. 6B which is automatically set based on the temperature, the wet-bulb temperature t of the air a2 between the cold water coil C and the burner H detected by the upstream wet-bulb temperature sensor S4
The cooling amount qc corresponding to 2 ′ is set as a target cooling amount qcs, and the cooling amount qc of the chilled water coil C is adjusted by adjusting the chilled water flow control valve 7.
Is adjusted to the target cooling amount qcs.

The graph indicated by the broken line in FIG. 6B shows a change in the second setting relation Z2 when the reference sub-target wet bulb temperature ts2 'changes in the automatic setting of the second setting relation Z2. The second setting relation Z2 moves in the same direction in parallel with the change in the sub-target wet bulb temperature ts2 '. Further, in FIG. 6B, ts ′ is the target state (the target temperature t
s, the target wet-bulb temperature corresponding to the target absolute humidity xs).

(D-3) Wet bulb temperature t3 'of air a3 between burner H and air washer WA, and heating amount qh of burner H
In the third setting relationship Z3 shown in FIG. 6C which is set in advance with respect to the adjustment relationship between the burner H and the air a3 between the air washer WA detected by the wet-bulb temperature sensor S2.
Heating amount qh corresponding to the wet bulb temperature t3 '
hs, the heating amount qh of the burner H is adjusted to the target heating amount qhs by adjusting the fuel flow rate control valve 8.

FIG. 6C showing the third setting relation Z3.
In the formula, ts' is the target wet bulb temperature corresponding to the target state (target temperature ts, target absolute humidity xs).

(D-4) Air a4 after air washer WA
In the fourth setting relationship Z4 shown in FIG. 6D, which is set in advance with respect to the adjustment relationship between the absolute humidity x4 of the air washer WA and the humidification amount qw of the air washer WA, the air a4 after the air washer WA detected by the rear humidity sensor S1. The humidification amount qw corresponding to the absolute humidity x4 is set as the target humidification amount qws, and the degree of opening of the bypass damper Dx and the contact portion side damper Dy is reciprocally adjusted.
And the air / water contact portion u2 by opening and closing the individual water supply valve v
By changing the water supply operation number of u5, the humidification amount qw of the air washer WA is adjusted to the target humidification amount qws.

FIG. 6D showing the fourth setting relation Z4.
In the formula, xs is the target absolute humidity.

That is, the controller MB operates in the above (D-
By the control operations of 1) and (D-2), the chilled water coil C-
The absolute humidity x2 of the air a2 between the burners H is the target absolute humidity x
s (ie, the sub-target wet bulb humidity ts2 ′).
= When the target wet bulb temperature ts '), the wet bulb temperature t2' of the air a2 between the chilled water coil C and the burner H corresponds to the target state (target temperature ts, target absolute humidity xs). The cooling amount qc of the chilled water coil C is adjusted so as to reach the wet bulb temperature ts ′, whereby the absolute humidity x2 of the air a2 between the chilled water coil C and the burner H is lower than the target absolute humidity xs (that is, In the case where the air a1 is in any of the regions r2, r3, and r4), the wet bulb temperature t2 ′ of the air a2 between the cold water coil C and the burner H is higher than the target wet bulb temperature ts ′. In the case where the temperature is low (that is, the introduced air a1 is in the region r3 or the region r4), the operation of the chilled water coil C is substantially stopped by executing the cooling amount adjustment itself.
Alternatively, an adjustment mode shown in FIG.

On the contrary, even when the absolute humidity x2 of the air a2 between the chilled water coil C and the burner H is lower than the target absolute humidity xs, the air a2 between the chilled water coil C and the burner H is not changed.
When the wet-bulb temperature t2 ′ is higher than the target wet-bulb temperature ts ′ (that is, the introduced air a1 is in the region r2), the adjustment shown in FIG. Realize the cooling stroke part of the form.

On the other hand, the air a between the cold water coil C and the burner H
2 when the absolute humidity x2 is equal to or higher than the target absolute humidity xs (that is, when the introduced air a1 is in the area r1 and the sub target wet bulb humidity ts2 ′ <the target wet bulb temperature ts ′). The cooling amount qc of the chilled water coil C is controlled by the control operations (D-1) and (D-2) so that the absolute humidity x2 of the air a2 between the chilled water coil C and the burner H becomes the target absolute humidity xs. By adjusting the cooling amount, the cooling and dehumidifying process portion of the adjusting mode shown in FIG. 3A is realized.

In addition to the adjustment of the cooling amount, the control operation of (D-3) allows the wet bulb temperature t3 'of the air a3 between the burner H and the air washer WA to be adjusted to the target wet bulb temperature corresponding to the target state. Burner H so that ts'
By adjusting the heating amount qh of the cooling water coil C, the cooling amount adjustment described above is in the adjustment mode shown in FIG. 3B (that is, when the introduced air a1 is in the region r2, In the case where the wet bulb temperature t2 'of the air a2 is adjusted to the target wet bulb temperature ts' by the cooling amount adjustment), the operation of the burner H is substantially stopped by executing the heating amount adjustment itself. And FIG.
The adjustment mode shown in (b) is maintained.

On the other hand, when the cooling amount adjustment is in the adjustment mode shown in FIG. 3A, FIG. 4C, or FIG. r1, the region r3, and the region r4), these heating amounts are adjusted to obtain the values shown in FIGS.
4 (c) and FIG. 4 (d) realize the heating process portion of the adjustment mode shown in each of FIGS.

Further, together with the cooling amount adjustment and the heating amount adjustment, the control operation (D-4) is performed so that the absolute humidity x4 of the air a4 after the air washer WA becomes the target absolute humidity xs. By adjusting the humidification amount qw of the air washer WA, when the cooling amount adjustment is in the adjustment mode shown in FIG. 3A (that is, when the introduced air a1 is in the region r1, In the case where the absolute humidity x2 of the air a2 is adjusted to the target absolute humidity xs by adjusting the cooling amount for the chilled water coil C), the execution of the humidification amount adjustment itself results in the air washer WA.
3 is substantially stopped, and the adjustment mode shown in FIG.

On the other hand, when the cooling amount adjustment is in the adjustment mode shown in FIG. 3B, FIG. 4C, or FIG. r2, the region r3, and the region r4), the humidification amount is adjusted to obtain the values shown in FIGS.
The humidification process portion of the adjustment mode shown in FIGS. 4 (c) and 4 (d) is realized.

In short, in the second embodiment, by controlling the controller MB as described above, the presence area of the outside air as the introduced air a1 is reduced to the area r.
In response to any change from 1 to r4, the air a4 to be sent to the air conditioning target area can be automatically adjusted to the target state (target temperature ts, target absolute humidity xs).

[Another Embodiment] Next, another embodiment of the present invention will be listed. In the embodiment of the present invention, as the air cooling means capable of freely adjusting the cooling amount qc for the passing air a1, the cooling amount is adjusted by adjusting the supply amount of the cold water cw as in the above-described embodiment. In addition to the chilled water coil C that adjusts qc, for example, a cooling coil that adjusts the cooling amount qc by adjusting the supply amount of brine or an ice-water mixed fluid, or a direct expansion coil that adjusts the cooling amount qc by adjusting the refrigerant supply amount For example, various types can be adopted.

In implementing the second, third, fourth or fifth aspect of the present invention, the air heating means capable of freely adjusting the heating amount qh for the passing air a2 includes a fuel g supply amount adjustment as in the above-described embodiment. Burner H that adjusts the heating amount qh
In addition, for example, a hot water coil that adjusts the heating amount qh by adjusting the supply amount of hot water, or a heating amount q by adjusting the supply amount of steam
Various types such as a steam coil for adjusting h or an electric heater for adjusting the heating amount qh by adjusting the supplied power can be adopted.

In carrying out the invention according to claims 1 to 7,
The air washer WA replaces the air-water contact portions u1 to u5 with a filling type in which the air-water contact portions u1 to u5 are formed of a gas-permeable filler e.
5 may be a form in which water w is simply sprayed on the ventilation space.

In carrying out the invention of claims 1 to 5,
In order to freely adjust the humidification amount qw of the air washer WA with respect to the passing air a3, as in the above-described embodiment, the reciprocal opening degree adjustment between the bypass side damper Dx and the contact part side damper Dy, and the individual water supply valve v -Water contact part u by opening and closing operation of
In addition to the structure that enables the adjustment of the humidification amount qw by changing the number of water supply operations from 2 to u5, for example, the structure in which the humidification amount qw is simply adjusted by adjusting the water supply amount, or the humidification amount qw by simply adjusting the bypass air flow amount Various adjustment structures such as a structure for adjusting the water supply amount and a structure for adjusting the humidification amount qw by a combination of the adjustment of the water supply amount and the adjustment of the bypass air flow amount can be adopted.

In the practice of the invention according to claim 4 or 5, when detecting the absolute humidity, instead of using a means for directly measuring the absolute humidity, a temperature, relative humidity, or specific enthalpy other than absolute humidity is used. A method of calculating the absolute humidity from the air state quantity may be adopted. Similarly, in detecting the wet bulb temperature, instead of using the means for directly measuring the wet bulb temperature, the temperature, the relative humidity, or the ratio may be used. A method of calculating the wet bulb temperature from an air state quantity other than the wet bulb temperature such as enthalpy may be adopted.

In the implementation of the invention according to claims 1 to 5,
The designation of the target state (the target temperature ts, the target absolute humidity xs) is not limited to the specification by the temperature and the absolute humidity, and is equivalent to the target state (the target temperature ts, the target absolute humidity) using other air state quantities. xs) may be specified.

In the embodiment of the present invention, the control system adopted by the air-conditioning control means (controller MB) is the control of (D-1) to (D-4) shown in the second embodiment. The present invention is not limited to the system, and as a result, various control systems can be adopted as long as the control contents described in claim 5 are executed.

[Brief description of the drawings]

FIG. 1 is a plan view of the apparatus.

FIG. 2 is a schematic perspective view of a main part of an air washer.

FIG. 3 is a psychrometric chart for explaining an air adjustment mode.

FIG. 4 is a psychrometric chart for explaining an air adjustment mode.

FIG. 5 is a plan view of the apparatus.

FIG. 6 is a graph for explaining a control method.

FIG. 7 is a configuration diagram of a conventional device.

FIG. 8 is a psychrometric chart for explaining an air adjustment mode using a conventional apparatus.

FIG. 9 is a psychrometric chart for explaining an air adjustment mode using a conventional apparatus.

[Explanation of symbols]

 WA Air washer qw Humidification amount C Air cooling means qc Cooling amount H Air heating means qh Heating amount St, Sx Temperature / humidity detection means MA, MB Air conditioning control means S1 to S4 First to fourth detection means ts Target temperature xs Target absolute humidity ts' Target wet bulb temperature u1 to u5 Air / water contact part u1 Specific air / water contact part fx Bypass air path Dx Bypass side damper Dy Contact part side damper F Auxiliary fan

Claims (7)

[Claims] 1. An air conditioner equipped with an air washer as air humidifying means, wherein the air washer is configured to be capable of adjusting the amount of humidification with respect to passing air, and the air cooling is capable of adjusting the cooling amount with respect to passing air. An air conditioner wherein the means is located upstream of the air washer in the direction of air flow. 2. An air conditioner equipped with an air washer as air humidifying means, wherein the air washer is configured so that the amount of humidification with respect to passing air can be adjusted, and the air heating with which the amount of heating with respect to passing air can be adjusted freely. An air conditioner, wherein the means is disposed only upstream of the air washer in the direction of air flow. 3. An air conditioner equipped with an air washer as air humidifying means, wherein the air washer is configured so that the amount of humidification with respect to passing air can be freely adjusted, and the air heating with which the amount of heating with respect to passing air can be freely adjusted. An air-conditioning device in which means are disposed upstream of the air washer in the air flow direction, and air cooling means capable of freely adjusting a cooling amount for passing air is disposed upstream of the air heating means in the air flow direction. . 4. A temperature / humidity detecting means for detecting a temperature and an absolute humidity of air at a downstream side of the air washer; a cooling amount of the air cooling means, the air heating based on detection information of the temperature / humidity detecting means. Air conditioning control means for automatically adjusting the heating amount of the means and the humidification amount of the air washer; and mode switching means for selectively switching the adjustment mode to a first mode, a second mode, or a third mode, In the first mode, the air conditioning control unit adjusts the cooling amount of the air cooling unit so that the temperature of the air downstream of the air washer reaches the target temperature while the operation of the air heating unit is stopped. And adjusting the humidification amount of the air washer so that the absolute humidity of the air on the downstream side of the air washer becomes the target absolute humidity. With the operation of the cooling means stopped, the heating amount of the air heating means is adjusted so that the temperature of the air downstream of the air washer reaches the target temperature, and the amount of air downstream of the air washer is adjusted. The humidification amount of the air washer is adjusted so that the absolute humidity becomes the target absolute humidity. In the third mode, the absolute humidity of the air on the downstream side of the air washer is set in a state where the operation of the air washer is stopped. A configuration in which the cooling amount of the air cooling unit is adjusted so as to reach a target absolute humidity, and the heating amount of the air heating unit is adjusted such that the temperature of air downstream of the air washer reaches the target temperature. 4. The air conditioner according to claim 3, wherein: 5. A first detecting means for detecting the absolute humidity of the air downstream of the air washer; a second detecting means for detecting a wet bulb temperature of the air between the air heating means and the air washer; A third detecting means for detecting an absolute humidity of air between the air cooling means and the air heating means, and a fourth detecting means for detecting a wet bulb temperature of air between the air cooling means and the air heating means. Air-conditioning control means for automatically adjusting a cooling amount of the air cooling means, a heating amount of the air heating means, and a humidification amount of the air washer based on detection information of the first to fourth detection means; The air conditioning control means, when the absolute humidity of the air between the air cooling means and the air heating means is lower than the target absolute humidity, the air cooling means and the air heating means Adjusting the cooling amount of the air cooling unit so that the wet bulb temperature of the air during the period becomes the target wet bulb temperature corresponding to the target temperature and the target absolute humidity; When the absolute humidity of the air between the air cooling means is equal to or higher than the target absolute humidity, the cooling of the air cooling means is performed so that the absolute humidity of the air between the air cooling means and the air heating means becomes the target absolute humidity. The amount of heating of the air heating means is adjusted so that the wet bulb temperature of the air between the air heating means and the air washer reaches the target wet bulb temperature. 4. The humidifying amount of the air washer is adjusted so that the absolute humidity of air downstream of the air washer becomes the target absolute humidity. Air-conditioning system. 6. An air washer for use in an air conditioner according to claim 1, wherein a plurality of air / water contact portions capable of individually performing water supply start / stop operations are provided for an air flow. Arranged in parallel, while providing a bypass air path that bypasses these air-water contact sections, a bypass-side damper that adjusts the amount of air passing through the bypass air path, and a specific air-water contact section of the air-water contact section. An air washer provided with a contact-portion-side damper for adjusting the amount of passing air. 7. The air that passes through the bypass air passage and the specific air / water contact portion and the air that passes through the air / water contact portion of the air / water contact portion other than the specific air / water contact portion. The air washer according to claim 6, further comprising an auxiliary fan for forcibly ventilating the bypass air passage and the specific air / water contact portion in a separated state.