JPH04347445A - Air conditioner - Google Patents

Abstract

PURPOSE:To improve an air volume adjusting and controlling characteristic in an air conditioner including a damper controlling means in which a plurality of branched air passages are connected to a main air passage connected to a fan and each of the branched air passages is provided with air volume adjusting dampers so as to adjust an amount of aeration in each of the branched air passages in reference to a degree of opening and with an air passage pressure controlling means for use in adjusting a pressure in an air passage of an main air passage so as to adjust an output of a fan in response to a detected degree of opening of each of the air volume adjusting dampers. CONSTITUTION:An air passage pressure controlling means is comprised of adjusting means 17, 18 for use in adjusting an air passage pressure Ps in a main air passage 3 so as to cause a maximum value AAmax in sensed degrees of opening A1 to A3 to become within a range XXs of an appropriate intermediate set degree of opening, and a correction means 22 for correcting the range XXs of an appropriate intermediate degree of opening to an increased degree of opening as a mean value HA of the sensed degrees A1 to A3 is lower, or for correcting in a subtraction of the maximum value AAmax of the detected degree of opening with a high subtracted value dA.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The first and second inventions provide a main air path connected to a fan with a plurality of branch air paths connected to each other, each of the branch air paths being equipped with an air volume adjustment damper, and the branch air path connected to a fan. damper control means that adjusts the opening of the air volume adjustment damper so as to adjust the ventilation volume of each passage to a predetermined amount; and a damper control means that adjusts the output of the fan based on the detected opening of each of the air volume adjustment dampers so as to adjust the ventilation volume of each air passage to a predetermined amount; The present invention relates to an air conditioning system equipped with an air passage pressure control means for adjusting air passage pressure.

0002

[Prior Art] Conventionally, the air passage pressure control means in the above-mentioned air conditioning equipment has been designed to control the opening of each air volume adjusting damper, which is adjusted by the damper control means so as to adjust the air flow of the branch air passage to a predetermined amount. Of these, the configuration only adjusts the fan output and adjusts the air duct pressure in the main air duct so that the maximum value is within the set appropriate opening range.

More specifically, based on the on/off information of two opening contacts provided on each of the air volume adjustment dampers, at least one of the openings of each of the air volume adjustment dampers is within the above-mentioned appropriate opening range. When it deviates to the opening side, the fan output is increased at a constant change speed, and when all the opening degrees of each air volume adjustment damper deviate from the set appropriate opening range to the closing side, the fan output is increased at a constant change speed. The air passage pressure in the main air passage was merely adjusted by lowering it at a changing speed (see, for example, Japanese Patent Publication No. 2-13217).

0004

[Problem to be Solved by the Invention] However, in the above-mentioned conventional control form, the opening of each air volume adjustment damper may be fine if the opening other than the maximum value is within or near the appropriate opening range. However, if the value other than the maximum value deviates from the set appropriate opening range and is significantly biased toward the closed side, the air volume at openings other than the maximum value will change due to the well-known change in the damper air volume adjustment characteristics depending on the used opening range. There is a problem that the adjustment controllability of the air volume adjustment by the adjustment damper is greatly deteriorated, and there is also a problem that the pressure loss in the air volume adjustment damper having an opening degree other than the maximum value becomes large, resulting in a large waste of fan power.

[0005] It is an object of the first and second inventions to solve the above problems by adopting a rational control form in adjusting the air passage pressure of the main air passage based on the opening degree of each air volume adjustment damper. It is in.

[0006]

[Means for Solving the Problems] [First Invention] The first characteristic configuration of the air conditioning equipment according to the first invention is to connect a plurality of branch air paths to a main air path connected to a fan, and to A damper control means is provided with an air volume adjustment damper in each of the branch air passages, and a damper control means for adjusting the opening of the air volume adjustment damper so as to adjust the ventilation volume of each of the branch air passages to a predetermined amount; and a wind passage pressure control means for adjusting the air passage pressure of the main air passage by adjusting the output of the fan, the air passage pressure control means adjusting the maximum value of the detected opening degree. an adjusting means for adjusting the air passage pressure of the main air passage so that the opening is within the set appropriate intermediate opening range; The present invention further includes a correction means for correcting to the increasing side or subtracting the detected maximum opening value by a large subtraction value.

A second feature of the air conditioner according to the first aspect of the present invention is that the deviation width of the maximum value of the detected opening from the set appropriate intermediate opening range as a result of correcting the adjusting means by the correcting means is The reason is that the larger the value, the larger the absolute value of the speed of change in air path pressure during air path pressure adjustment.

[Second invention] The first characteristic configuration of the air conditioning equipment according to the second invention is that a plurality of branch air passages are connected to the main air passage connected to the fan, and an air volume adjustment damper is provided for each of the branch air passages. and a damper control means for adjusting the opening of the air volume adjustment damper so as to adjust the ventilation volume of each of the branch air passages to a predetermined amount, and outputting the fan based on the detected opening of each of the air volume adjustment dampers. An air passage pressure control means for adjusting the air passage pressure of the main air passage by adjusting the air passage pressure control means, wherein the air passage pressure control means is set such that the average value of the detected opening degrees is a predetermined target intermediate opening value. There is a configuration in which the air passage pressure of the main air passage is adjusted so that the pressure approaches the main air passage.

[0009] Also, a second characteristic configuration of the air conditioner according to the second invention is such that the air passage pressure control means is configured to prevent the maximum value of the detected opening degrees from exceeding a predetermined upper limit value. Another feature is that the fan is provided with a limiting means for limiting the air passage pressure adjustment to the side where the fan output is lowered.

0010

[Operation] [First invention] In the first characteristic configuration of the first invention, based on the detected opening degrees of each air volume adjustment damper, the smaller the average value of the detected opening degrees, the shift in the maximum detected opening value. By correcting the set appropriate intermediate opening range, which is the target range, to the opening increasing side, or as a correction that is substantially equal to the correction to the opening increasing side of the setting appropriate intermediate opening range, the detected opening As the average value of The larger the bias toward the closed side of the other openings and the smaller the average value of the detected opening, the more the main air duct pressure as a result of the air duct pressure adjustment that shifts the maximum detected opening to within the set appropriate intermediate opening range. Located on the low fan output side (i.e., the side that reduces the ventilation volume of each branch air path),
As a result, compared to the conventional control mode described above that does not perform correction according to the average detected opening value, the large bias toward the closing side of the opening of each air volume adjustment damper other than the maximum value is alleviated and suppressed. be done.

In other words, the larger the degree of opening of each air volume adjustment damper other than the maximum value deviates toward the closed side, the greater the deviation tolerance ( By adjusting the air passage pressure by increasing the correction amount for the appropriate intermediate opening range (or the correction amount for the detected maximum opening value), it is possible to correct the This will restore the opening to the open side.

[0012] In the second characteristic configuration of the first invention,
In other words, the larger the deviation of the maximum value of the detected opening from the setting appropriate intermediate opening range in the result of correction according to the average value of the detected opening by the correction means in the first characteristic configuration described above, the more difficult the air volume adjustment is. A state in which the overall opening state of the damper deviates significantly from the optimal opening state corrected and determined by considering the average value of detected openings, and the controllability of air volume adjustment by the air volume adjustment damper as a whole has deteriorated significantly. As the absolute value of the air duct pressure change speed becomes larger in the air duct pressure adjustment performed in the direction of improving the condition, detection from the setting appropriate intermediate opening range in the result corrected by the correction means. A large deviation in the maximum opening value can be quickly resolved, and the overall opening state of the air volume adjustment damper can be quickly shifted to an opening state where the adjustment controllability of the air volume adjustment is optimal as a whole.

[0013] Furthermore, the smaller the width of deviation of the maximum value of the detected opening from the set appropriate intermediate opening range as a result of correction according to the average value of the detected opening by the correction means, the smaller the deviation width of the maximum value of the detected opening is, the more the air passage pressure in the air passage pressure adjustment is adjusted. By setting the absolute value of the change speed to a small value, occurrence of an overshoot-like phenomenon or a hunting-like phenomenon in air passage pressure adjustment is prevented.

[Second invention] In the first characteristic configuration of the second invention, the output of the fan is adjusted so that the average value of the detected opening degrees of each air volume adjustment damper approaches a predetermined target intermediate opening value. Since the air passage pressure of the main air passage is adjusted by adjusting the air passage pressure, not only the maximum value of the opening degree of each air volume adjustment damper but also the opening degree other than the maximum value can be reflected in the air passage pressure adjustment.
Compared to the conventional control form described above, in which the air passage pressure of the main air passage is simply adjusted based on the maximum value of the opening degrees of each air volume adjustment damper so that the maximum value is within the set appropriate opening range.
It is possible to suppress opening degrees other than the maximum value from being largely biased toward the closed side.

[0015] In the second characteristic configuration of the second invention,
In the air passage pressure control of the first characteristic configuration described above, in which the average value of the detected opening degrees of each air volume adjustment damper approaches a predetermined target intermediate opening value, the maximum value of the opening degrees of each air volume adjustment damper is opened. The limiting function of the limiting means can prevent excessive deviation to the side.

[0016]

[Effect of the invention] The first characteristic configuration of the first invention to the second feature of the present invention
According to the first characteristic configuration of the invention, in any case, the opening degrees of the air volume adjustment damper other than the maximum value are largely biased toward the closed side, and the air volume adjustment by the air volume adjustment damper with the opening degree other than the maximum value is By suppressing and preventing a significant deterioration in adjustment controllability, the overall adjustment controllability of air volume adjustment by each air volume adjustment damper can be improved compared to the conventional method, and the adjustment accuracy of air volume adjustment in branch air channels can be improved. We were able to maintain a high average level for each of these.

[0017] Furthermore, it is possible to suppress and prevent opening degrees other than the maximum value from being largely biased toward the closing side, and the pressure loss in the air volume adjustment damper at opening degrees other than the maximum value increasing greatly. Therefore, wastage of fan power can be more accurately avoided, and fan power consumption can be more effectively reduced.

In addition, in the first aspect of the present invention, if the second characteristic configuration is adopted, the responsiveness and stability can be improved in the air passage pressure adjustment control of the main air passage, and in the first characteristic configuration of the first invention, As described above, it is possible to improve the controllability of air volume adjustment by each air volume adjustment damper and to effectively achieve reduction in fan power consumption more accurately.

In addition, in the second aspect of the present invention, if the second characteristic configuration is adopted, the maximum value of the opening degrees of each air volume adjustment damper is biased too much toward the opening side, and the air volume at the opening degree of the maximum value is It is also possible to reliably prevent the air volume adjustment controllability of the adjustment damper from becoming worse.

[Example] Next, an example will be explained.

FIG. 1 shows the configuration of air conditioning equipment for a plurality of target rooms 1, including a main air supply air path 3 connected to the discharge side of the air supply fan 2, and a main exhaust air path 5 connected to the suction side of the exhaust fan 4. each of the target rooms 1 is connected to the main air supply air path 3 via the air supply side branch air path 6, and the exhaust side branch air path 7 is connected to the main air supply air path 3 via the air supply side branch air path 6.
It is connected to the main exhaust air passage 5 via.

[0021] Each of the air supply side branch air passages 6 has a respective target chamber 1.
A supply side air volume adjustment damper 8 is interposed to adjust the supply air volume qs to Exhaust side air volume adjustment damper 9 for adjusting the differential pressure dp between the outside and outside of the target room
is interposed.

Then, the air supply side air volume adjustment damper 8 is adjusted so that the air supply amount qs to the target room 1 detected by the air supply amount sensor 10 becomes the value qss specified by the central controller 11.
The exhaust side air volume is adjusted so that the differential pressure dp between the inside and outside of the target room detected by the intake damper controller 12 that adjusts the opening and the differential pressure sensor 13 becomes the value dps specified by the central controller 11. An exhaust side damper controller 14 for adjusting the opening of the damper 9 is provided for each of the target chambers 1.

In the figure, reference numeral 15 denotes an air conditioner that adjusts the temperature and humidity of the air supplied to the target room 1.

For the air supply fan 2, a pressure sensor 16
The air passage pressure Ps of the main air supply air passage 3 detected by is the set value P
ss, the air supply fan 2 is
A supply air fan controller 17 is provided to adjust the output of the air supply fan controller 17. On the other hand, the overall controller 11 controls the maximum value AA of the detected opening degrees A1, A2, and A3 of each of the intake air volume adjustment dampers 8.
max (more specifically, the corrected maximum value Amax, which will be described later) is within the setting appropriate intermediate opening range XXs on the air supply side, and the air supply air passage pressure is set as the control target of the air supply fan controller 17. A supply air passage pressure setting unit 18 is provided to change and adjust the value Pss.

On the other hand, for the exhaust fan 4, the output of the exhaust fan 4 is adjusted by inverter control so that the air passage pressure Pr of the main exhaust air passage 5 detected by the pressure sensor 19 becomes the set value Prr. A fan controller 20 is provided, and the overall controller 11 has a maximum value BBmax of the detected opening degrees B1, B2, and B3 of each of the exhaust side air volume adjustment dampers 9 (for details, the corrected maximum value Bmax)
The exhaust side air duct pressure setting unit 21 changes and adjusts the above exhaust side air duct pressure set value Prr, which is the adjustment target of the exhaust fan controller 20, so that Prr is within the set appropriate intermediate opening range XXr on the exhaust side. It is provided.

The overall controller 11 also determines a corrected maximum value Am obtained by correcting the maximum value AAmax of the detected opening degrees A1, A2, and A3 of each of the air supply side air volume adjustment dampers 8.
By giving ax to the air supply side air passage pressure setting unit 18 as an index for changing the air passage pressure setting value, the air supply side air passage pressure setting unit 18
An air supply side maximum value correction unit 22 is provided for changing and adjusting the air supply side air passage pressure setting value Pss according to the correction maximum value Amax.

The maximum value correction form in the intake side maximum value correction section 22 is based on the actual detected maximum opening value A.
In the subtraction correction in which the value obtained by subtracting the correction deviation value dA from Amax is the above correction maximum value Amax (=AAmax-dA), the detected opening degree A1,
The smaller the average value HA of A2 and A3, the smaller the correction deviation value dA.
A form in which the value is set to a large value is adopted.

In other words, by performing such correction, the opening degrees A1, A2,
The air passage pressure P of the main air supply air passage 3 is adjusted so that the maximum value AAmax of A3 is within the setting appropriate intermediate opening range XXs on the air supply side.
s (that is, changing and adjusting the supply air passage pressure setting value Pss), the opening degrees A1, A2, and A3 of each of the supply air volume adjustment dampers 8 other than the maximum value AAmax are set to the closed side. As a result, the adjustment controllability of the air supply volume adjustment by the air supply side air volume adjustment damper 8 is maintained at a high level as a whole, and the increase in pressure loss at the air supply side air volume adjustment damper 8 is alleviated and suppressed. This effectively avoids wasting power of the supply air fan.

The air supply side air passage pressure setting section 18 adjusts the air supply side air so that the corrected maximum value Amax given by the air supply side maximum value correction section 22 is within the setting appropriate intermediate opening range XXs on the air supply side. In changing and adjusting the road pressure set value Pss, the corrected maximum value Am from the setting appropriate intermediate opening range XXs on the air supply side
It is configured such that the larger the deviation width of ax, the larger the absolute value of the air passage pressure setting value changing speed Vs, thereby increasing the responsiveness and stability in the air passage pressure adjustment control of the main air supply air passage 3. It's like this.

To describe in more detail the maximum value correction by the intake air maximum value correction unit 22 and the change adjustment of the intake air passage pressure set value Pss by the intake air passage pressure setting unit 18, The value correction unit 22 includes first to third correction indicators M1, M2, M3 shown in FIG.
, M3 as shown in FIG.
m3, the correction deviation value dA is determined according to the detected opening degrees A1, A2, and A3 of each of the air supply side air volume adjustment dampers 8.

Furthermore, the air supply side air passage pressure setting unit 18 sets the first to fifth set pressure change indicators N1, N2, N3 shown in FIG.
, N4, N5 and their set pressure change indicators N1, N2, N
3, N4, and N5 as shown in FIG.
, n2, n3, n4, and n5, the change rate K of the supply air passage pressure set value Pss is determined according to the corrected maximum value Amax.

In this example, each of the first to third correction indicators M1, M2, M3 and the first to fifth set pressure change indicators N1, N2, N3, N4, N5 are as follows. It is set as a function like this.

M1; dA=0.0 M2; dA=-0.07×HA+10 M3; dA=-0.07×HA+15 N1; K=0.01×Amax-0.1N2;
K=0.01×Amax−0.3N3; K
= 0.0 N4; K= 0.01×Amax-0.9N5;
K=0.004×Amax-1.0

0034
] Also, the first to third correction indicators M1, M2, M3, the corresponding fitness indicators m1, m2, m3, and the first to fifth set pressure change indicators N1, N2, N3,
N4, N5 and fitness indices n1, n2,
Each of n3, n4, and n5 is determined based on the following decision rule.

(M1, m1) Since the average value HA of the opening degrees A1, A2, and A3 of the air supply side air volume adjustment damper 8 is large,
The maximum value AAmax of those opening degrees A1, A2, A3
(Actual maximum value) is the appropriate setting intermediate opening range XX on the air supply side
The air path pressure is adjusted to within s (in this example, XXs; 55° to 70°). In other words, the air passage pressure is adjusted in a state where the corrected maximum value Amax is made equal to the actual maximum value AAmax.

(M2, m2) Since the above-mentioned average value HA is somewhat small, the air passage pressure is adjusted so that the above-mentioned maximum value AAmax is slightly on the open side with respect to the set appropriate intermediate opening range XXs on the air supply side. In other words, the air passage pressure is adjusted with the corrected maximum value Amax set to a value slightly smaller than the actual maximum value AAmax.

(M3, m3) Since the above-mentioned average value HA is quite small, the air passage pressure is such that the above-mentioned maximum value AAmax is further open than the above-mentioned M2 in the setting appropriate intermediate opening range XXs on the air supply side. Make adjustments. In other words, the air passage pressure adjustment is performed with the corrected maximum value Amax set to a value considerably smaller than the actual maximum value AAmax.

(N1, n1) Although the pressure loss is small, the controllability of the air volume adjustment is quite poor when the maximum opening of the air supply side air volume adjustment damper 8 is used in the opening range where the damper 8 is biased toward the open side. The air passage pressure Ps of the main air supply air passage 3 is significantly changed to the side of increasing the air supply fan output.

(N2, n2) Although the pressure loss is small, the air volume adjustment controllability is somewhat poor when the maximum opening of the air supply side air volume adjustment damper 8 is used in the slightly open side opening range. The air passage pressure Ps of the air supply air passage 3 is slightly changed to the side of increasing the air supply fan output.

(N3, n3) Since the pressure loss is moderate and the air volume adjustment controllability of the maximum opening of the air supply side air volume adjustment damper 8 is also good, the air flow path of the main air supply air path 3 Maintain the pressure Ps as it is.

(N4, n4) The air volume adjustment controllability of the one with the maximum opening among the air supply side air volume adjustment dampers 8 is good, but the pressure loss is somewhat large, so the air passage pressure P of the main air supply air passage 3 is
Change s slightly to lower the air supply fan output.

(N5, n5) The pressure loss is large, and
Regarding the maximum opening of the air supply side air volume adjustment damper 8, the air volume adjustment controllability is poor when using the biased opening range on the closing side.
The air passage pressure Ps of the main air supply air passage 3 is significantly changed to the side where the air supply fan output decreases.

In determining the correction indices M1, M2, M3, the upper limit dAmax of the correction deviation value dA (correction index M
3 dA intercept) is defined as 15°, and the appropriate intermediate opening range XXs on the air supply side is 55° to 70° in this example, but the upper limit is set at 85°. The actual maximum opening value AAmax is prevented from exceeding 85° due to maximum value correction. In other words, the air supply side maximum value correction section 22 is provided with a limiting function that limits the maximum value correction so as to prevent the actual maximum value AAmax from exceeding the above upper limit value.

Maximum value correction by the air supply side maximum value correction unit 22 based on the above correction indicators M1, M2, M3 and conformity indicators m1, m2, m3, and the above set pressure change indicators N1, N2, N3, N4, N5 and fitness index n1,
Specific examples of correction and adjustment of the supply air passage pressure setting value Pss by the supply air passage pressure setting unit 18 based on n2, n3, n4, and n5 are shown below.

Detected opening degree A of each air volume adjustment damper 8 on the air supply side
1, A2, A3 are 82.5°, 45.0, 30.0 (Example 1), actual maximum value AAmax = 82.5° average value
HA=52.5°, whereas the intake air maximum value correction unit 22 calculates the goodness of fit of the first correction index M1 m(M1)=0.0 based on each goodness of fit index m1, m2, m3. Second
The degree of conformity of the correction index M2 is m(M2)=0.5, the degree of conformity of the third correction index M3 is obtained m(M3)=0.5, and
Based on the first to third correction indicators M1, M2, and M3, the correction deviation value dA (M1) by the first correction indicator M1 = 0.0 The correction deviation value dA (M2) by the second correction indicator M2 = -0.07 ×HA+10=6.32
5 Corrected deviation value dA(M3) by third correction index M3=-0.07×HA+15=11.325
get.

[0046] Then, by the following calculation taking into consideration the conformity m(M1), m(M2), m(M3) of each correction index M1, M2, M3, dA=dA(M1)×m(M1)+dA (M1)×m(
M1)+dA(M1)×m(M1) As the correction deviation value dA to be adopted, dA=8.825° is obtained, and thereby the correction maximum value Amax given to the air supply side air passage pressure setting section 18 is determined. , Amax=AAmax-dA=73.675°.

In other words, the range Xs (63.825° to 78.8
25°) as the target adjustment range of the actual maximum value AAmax.

On the other hand, the air supply side air passage pressure correction section 18 receives the correction maximum value Amax=73.6 from the air supply side maximum value correction section 22.
75° is given, based on each fitness index n1, n2, n3, n4, n5,
Compatibility of first set pressure change index N1 n(N1)=0.
0 Compatibility of second set pressure change index N2 n(N2) = 0
．． 5 Compatibility of third set pressure change index N3 n(N3)=
0.5 Compatibility of the fourth set pressure change index N4 n (N4)
= 0.0 Compatibility of the fifth set pressure change index N5 n(N5
) = 0.0, and based on the first to fifth set pressure change indicators N1, N2, N3, N4, N5, the change rate by the first set pressure change indicator N1 K(N1) = 0.01 ×Amax-0.1=0.636
75 Change rate K (N2) by second set pressure change index N2 = 0.01 x Amax - 0.3 = 0.436
75 Change rate K (N3) by the third set pressure change index N3 = 0.0 Change rate K (N4) by the fourth set pressure change index N4 = 0.01 x Amax - 0.9 = -0.16
325 Change rate K (N5) by fifth set pressure change index N5 = 0.004 x Amax-1.0 = -0.7
053 is obtained.

[0049] Then, each set pressure change index N1, N2, N
3, N4, N5 fitness n(N1), n(N2), n(
By the following calculation considering N3), n(N4), and n(N5), K=K(N1)×n(N1)+K(N2)×n(N2)
+K(N3)×n(N3)+K(N4)×n(N4)+
K(N5)×n(N5) As the change rate K to be adopted, K=0.218 is obtained, and as a result, the air supply side air passage pressure setting unit 18 sets the set value change speed Vs as follows: Vs=K×Vmax =0.436mmAq/minVm
ax: Maximum speed (gain, in this example Vmax=2.0m
mAq/min), and the supply air passage pressure set value Pss is changed at this set value change speed Vs (positive Vs is a change to the side of increasing the supply air fan output).

For the above correction/adjustment example (Example 1), if the detected opening degrees A1, A2, and A3 of the air supply side air volume adjustment damper 8 are 82.5°, 67.5, and 60.0, respectively ( Example 2) is the actual maximum value AAmax = 82.5° average value
HA=70.0°, whereas the intake side maximum value correction unit 22 calculates the goodness of fit of the first correction index M1 m(M1)=0.0 based on each goodness of fit index m1, m2, m3. Second
The degree of suitability of the correction index M2 is m(M2)=1.0, the degree of suitability of the third correction index M3 is obtained m(M3)=0.0, and
Based on the first to third correction indicators M1, M2, and M3, the correction deviation value dA (M1) by the first correction indicator M1 = 0.0 The correction deviation value dA (M2) by the second correction indicator M2 = -0.07 ×HA+10=5.1 The corrected deviation value dA(M3)=−0.07×HA+15=10.1 by the third correction index M3 is obtained.

[0051] Then, by the following calculation taking into consideration the conformity m(M1), m(M2), m(M3) of each correction index M1, M2, M3, dA=dA(M1)×m(M1)+dA (M1)×m(
M1)+dA(M1)×m(M1) As the correction deviation value dA to be adopted, dA=5.1° is obtained, and thereby the correction maximum value Amax given to the air supply side air passage pressure setting section 18 is determined. , Amax=AAmax-dA=77.4°.

In other words, the appropriate intermediate opening range XXs (55° to 70°) on the air supply side is shifted to the opening side by dA=5.1, which is the range Xs (60.1° to 75.1°). )of,
This is equivalent to the correction of the actual maximum value AAmax to the target adjustment range.

On the other hand, the air supply side air passage pressure correction section 18 receives the correction maximum value Amax=77.4 from the air supply side maximum value correction section 22.
° is given, each goodness-of-fit index n1, n2,
Based on n3, n4, and n5, goodness of fit of the first set pressure change index N1 n(N1)=0.
0 Compatibility of second set pressure change index N2 n(N2) = 1
．． 0 Compatibility of third set pressure change index N3 n(N3)=
0.0 Compatibility of the fourth set pressure change index N4 n (N4)
= 0.0 Compatibility of the fifth set pressure change index N5 n(N5
) = 0.0, and based on the first to fifth set pressure change indicators N1, N2, N3, N4, N5, the change rate by the first set pressure change indicator N1 K(N1) = 0.01 ×Amax-0.1=0.674
Change rate K (N2) by second set pressure change index N2 = 0.01 x Amax - 0.3 = 0.474
Change rate K (N3) by the third set pressure change index N3 = 0.0 Change rate K (N4) by the fourth set pressure change index N4 = 0.01 x Amax - 0.9 = -0.12
6 Change rate K (N5) by fifth set pressure change index N5 = 0.004 x Amax-1.0 = -0.6
Get 904.

[0054] Then, each set pressure change index N1, N2, N
3, N4, N5 fitness n(N1), n(N2), n(
By the following calculation considering N3), n(N4), and n(N5), K=K(N1)×n(N1)+K(N2)×n(N2)
+K(N3)×n(N3)+K(N4)×n(N4)+
K(N5)×n(N5) As the change rate K to be adopted, K=0.474 is obtained, and as a result, the air supply side air passage pressure setting unit 18 sets the set value change speed Vs as follows: Vs=K×Vmax =0.948mmAq/min(V
max=2.0 mmAq/min), and the supply air passage pressure set value Pss is changed (changed to the side of increasing the supply air fan output) at this set value change speed Vs.

In addition to Examples 1 and 2 above, correction and correction when the relationship between the actual maximum value AAmax and the average value HA are different.
Examples of adjustments are listed below. If AAmax=54.0, HA=33.0, Ama
x=41.31 (Xs; 67.69~82.6
9) When Vs=-1.48 AAmax=54.0, HA=36.33, Am
ax=41.54 (Xs; 67.46~82.
46) When Vs=-1.45 AAmax=65.0, HA=40.0, Ama
x=52.8 (Xs; 67.2~82.2
) Vs=-0.32 When AAmax=65.0, HA=52.5, Ama
x=56.175 (Xs; 63.825~78.8
25) When Vs=0.0 AAmax=82.5, HA=52.5 (Example 1)
, Amax=73.675 (Xs; 63.825~7
8.825) Vs=0.436 AAmax=82.5, HA=70.0 (Example 2)
, Amax=77.4 (Xs; 60.1~7
5.1) When Vs=0.948 AAmax=82.5, HA=80.0, Ama
x=82.5 (Xs; 55~75(=Xs
s)) Vs=1.25

In the integrated controller 11, the maximum value BBmax of the detected opening degrees B1, B2, and B3 of each of the exhaust side air volume adjustment dampers 9 is subjected to subtraction correction similar to the intake side maximum correction section 22. By applying the corrected maximum value Bmax to the exhaust side air passage pressure setting unit 21, the exhaust side air passage pressure setting unit 2
An exhaust side maximum value correction unit 23 is provided for changing and adjusting the exhaust side air passage pressure set value Prr according to 1 to its corrected maximum value Bmax. The air passage pressure setting section 18 is configured to change and adjust the exhaust side air passage pressure setting value Prr in the same manner as the air passage pressure setting section 18.

[Another Example] Next, another example will be listed.

In the above embodiment, the air volume adjustment damper 8
The smaller the average value HA of the respective detected opening degrees A1, A2, A3, the larger the subtraction correction of the maximum value AAmax (actual maximum value) of the detected opening degrees A1, A2, A3 by a larger subtraction value dA, Although a control form was adopted in which the air passage pressure Ps of the main air passage 3 was adjusted so that the corrected maximum value Amax was within the set appropriate intermediate opening degree XXs, instead of this, the average value HA
The smaller the value, the more the setting appropriate intermediate opening range XXs is changed and corrected to the opening increasing side, and the actual detected opening maximum value AAm is
A control form may be adopted in which the air passage pressure Ps of the main air passage 3 is adjusted so that ax is within the corrected setting appropriate intermediate opening degree range Xs.

[0059] Regardless of which of the above embodiments is adopted, the maximum detected opening value AA
The correction factors, such as how much to change the subtraction value dA (corrected deviation value) to be subtracted from max, and how much to change the setting appropriate intermediate opening range XXs, may be determined as appropriate in equipment design. , setting appropriate intermediate opening XXs is also 5
The angle is not limited to 5° to 70°, and an appropriate range may be set according to various conditions.

[0060] The above corrected maximum value Amax is within the setting appropriate intermediate opening range XXs, or the actual detected maximum opening value AAmax is within the setting appropriate intermediate opening range Xs that is corrected as described above. As shown in FIG.
A control type (the second invention) is adopted in which the air passage pressure Ps of the main air passage 3 is adjusted so that the average value HA of each detected opening degree A1, A2, A3 approaches a predetermined target intermediate opening degree. Good too.

[0061] In that case, the airflow to the fan output decreasing side is controlled so as to prevent the maximum value AAmax of the detected opening degrees A1, A2, and A3 of each of the air volume adjustment dampers 8 from exceeding a predetermined upper limit value. The fan output is increased to limit the road pressure adjustment or to prevent the minimum value AAmin of the detected opening degrees A1, A2, and A3 of each air volume adjustment damper 8 from falling below a predetermined lower limit value. It may be additionally equipped with a restriction means for restricting the air passage pressure adjustment.

In the above-mentioned embodiment, the first invention was applied to each of the air supply side and the exhaust side, but the first invention
Also, the second invention may be applied only to either the air supply side or the exhaust side.

Branch air passages 6 connected to the main air supply air passages 3 and 5,
7 is not limited to three routes, but may be any number of routes as long as it is two or more routes.

The purpose of adjusting the opening of the air volume adjusting dampers 8 and 9 by the damper control means 12 and 14 is not limited to adjusting the supply amount of temperature and humidity adjusting air to the target room 1 or adjusting the room pressure. It may be a purpose.

[0065] Although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings by such entry.

[Brief explanation of the drawing]

[Figure 1] Overall equipment configuration diagram

[Figure 2] Graph showing correction indicators

[Figure 3] Graph showing goodness-of-fit index of correction index

[Figure 4] Graph showing set pressure change index

[Figure 5] Graph showing the suitability index of the set pressure change index

[Explanation of symbols]

2 fan 3
Main air passage 6
Branch wind path 8
Air volume adjustment damper 12
Damper control means 17, 18 Adjustment means 22 Correction means 17, 18
, 22 Air passage pressure control means qs Airflow amount A1, A2,
A3 Opening degree AAmax Maximum value

Claims (4)

[Claims] [Claim 1] Main air path (3) connected to fan (2)
A plurality of branch air paths (6) are connected to the branch air paths (6).
6) Damper control in which each of the branch air passages (6) is equipped with an air volume adjustment damper (8) and the opening degree of the air volume adjustment damper (8) is adjusted so as to adjust the ventilation volume (qs) of each of the branch air passages (6) to a predetermined amount. Based on the means (12) and the detected opening degrees (A1), (A2), and (A3) of the air volume adjustment damper (8), the output of the fan (2) is adjusted to adjust the output of the main air path (3). Air path pressure (P
air passage pressure control means (17), (18), (
22), wherein the air passage pressure control means (17), (18), and (22) are configured to detect one of the detected opening degrees (A1), (A2), and (A3). Maximum value (AAm
adjusting means (17), (18) for adjusting the air passage pressure (Ps) of the main air passage (3) so that the detected opening degree is within the set appropriate intermediate opening degree range (XXs); (A1), (
The smaller the average value (HA) of A2) and (A3), the more the above-mentioned appropriate setting intermediate opening range (XXs) is corrected to the opening increasing side, or the above-mentioned detected maximum opening value (AAmax) is increased. An air conditioning facility comprising: a correction means (22) that performs subtraction correction using a subtraction value (dA). 2. The adjusting means (17), (18) include:
The detected opening degree maximum value (A
2. The air conditioning equipment according to claim 1, wherein the larger the deviation width of air passage pressure (max), the larger the absolute value of the air passage pressure change speed (Vs) in air passage pressure adjustment. [Claim 3] Main air path (3) connected to fan (2)
A plurality of branch air paths (6) are connected to the branch air paths (6).
6) Damper control in which each of the branch air passages (6) is equipped with an air volume adjustment damper (8) and the opening degree of the air volume adjustment damper (8) is adjusted so as to adjust the ventilation volume (qs) of each of the branch air passages (6) to a predetermined amount. Based on the means (12) and the detected opening degrees (A1), (A2), and (A3) of the air volume adjustment damper (8), the output of the fan (2) is adjusted to adjust the output of the main air path (3). Air path pressure (P
air passage pressure control means (17), (18), (
22), wherein the air passage pressure control means is controlled by the detected opening degrees (A1), (A2), (A3).
An air conditioning system configured to adjust the air passage pressure (Ps) of the main air passage (3) so that the average value (HA) of the main air passage (3) approaches a predetermined target intermediate opening value. 4. The air passage pressure control means is configured to control the maximum value (AAm) of the detected opening degrees (A1), (A2), and (A3).
4. The air conditioning equipment according to claim 3, further comprising a restricting means for restricting the air passage pressure adjustment to the side where the fan output is lowered so as to prevent the fan output from becoming higher than a predetermined upper limit value.