JP7426677B2 - Air conditioner exhaust system using pressure adjustment damper - Google Patents

Description

The present invention relates to an exhaust system for an air conditioner using a pressure regulating damper, and the pressure regulating damper of the present invention is used when the pressure regulating damper of the present invention is densely arranged outdoors, such as in a packaged air conditioning system used in a data center air conditioning system. This pressure regulating damper is effective in preventing the air pressure inside the air duct from changing beyond a predetermined pressure in an air duct that exhausts heat exchange air from an outdoor unit to the atmosphere.

Even in an environment where the pressure on the discharge side of an air conditioner outdoor unit installed outdoors is higher than atmospheric pressure, automatic control increases the exhaust air volume of the outdoor unit to maintain heat exchange exhaust heat. An invention for stably operating an air conditioner outdoor unit is disclosed in Patent Document 1.

On the other hand, as another technique for adjusting the pressure within a target space, a pressure adjustment damper has been disclosed that releases excess air from a positive pressure space such as a clean room using a blade equipped with a counterweight (Patent Document 2).

Japanese Patent Application Publication No. 2003-148769 Utility Model Publication No. 64-1344

When installing the outdoor unit (outdoor unit) of a packaged air conditioner on the outdoor balcony (frame) of a building, the outdoor unit may be continuously blown by the outside wind (strong wind) from the same direction. This continuous outside wind from the same direction includes seasonal winds (northern winds in winter) and winds in a certain direction at certain times of the day (winds from the sea).

When the outdoor unit is installed on the balcony of both the upper and lower floors, an exhaust air duct with an opening facing the building is provided on the exhaust discharge side of the outdoor unit to prevent short circuiting of the heat exchange exhaust air blown out by the outdoor unit. However, if the outside air continues to hit the air duct outlet, heat exchange exhaust air is obstructed in the air duct, backflow continues, and there is a problem that heat exchange in the outdoor unit is not performed properly. .

As a countermeasure to this problem, the outdoor unit 200 of the air conditioner in Patent Document 1 allows stable air conditioning operation even when the outdoor unit is installed in an environment where the pressure is higher than atmospheric pressure at the outlet side. The object of the present invention is to provide an outdoor air conditioner device that can be maintained.

However, in the outdoor device 200, as shown in FIGS. 18 and 19, an auxiliary fan (booster fan) 206 is required, and in addition to a drive control means for the auxiliary fan 206, a control system for the outdoor fan 204 and its It requires the installation of actuating devices, etc. (modification of the outdoor unit), requires high equipment costs such as additional work on the power supply system and automatic control work, and does not result in energy savings.

Further, although backflow of the atmosphere in the outdoor unit device 200 is prevented by the shutter 208, if it is installed in a strong wind environment from the exhaust passage area 209, it is impossible to prevent the backflow of the exhaust air from the outdoor unit 211 due to strong winds. , the short circuit phenomenon cannot be prevented.
If the outdoor devices 200 are arranged in a high density arrangement, even if the backflow is prevented, there is a risk of short circuiting due to insufficient exhaust heat exhaustion.

On the other hand, a fine pressure adjustment damper disclosed in Patent Document 2 is known as a device that releases pressure in a space and prevents backflow of air. The above-mentioned micro-pressure damper is used in indoor clean spaces such as clean rooms, but its pressure release adjustment range is narrow, there are many components, and it is not durable enough to withstand exposure to sunlight, wind and rain, and changes in temperature over a long period of time. . Therefore, when the damper is used for a long period of time on an upper floor balcony of a building, parts of the damper (weights and screws) may fall and pose a danger to passersby on the ground.

Further, although the configuration of the balance weight 121 and lever portion 120 provided in the configuration of the pressure adjustment blade 103 itself in FIG. 15 is disclosed, the moment adjustment means consisting of this configuration is technically not shown in the explanatory diagrams of FIGS. 16 and 17. As shown, the ease with which the pressure adjusting blade 103 opens (moment of force) can be adjusted by changing the fixed position of the counterweight 121 from the fulcrum 122 of the frame 102 and the blade 103 or by changing the number thereof.

That is, the moment of force at this time M=F×L (F: force, L: distance from the fulcrum 122 to the fixed position of the counterweight 121) can be obtained.

However, in such a structure of the moment adjustment means, a screw is required to fix the counterweight 121 in order to change the fixing position with respect to the lever part 120, and the work is complicated and the fixing position is not the same as the length of the lever part 120. The disadvantage is that there is little room for adjustment.

Further, in the case of the moment adjustment means that changes the number of counterweights 121 with respect to the lever portion 120 shown in FIG. 15, there is a drawback that increasing or decreasing the counterweights 121 with respect to the lever portion 120 takes time and effort and is poor in workability.

Therefore, the present invention eliminates the drawbacks of the fine pressure adjustment damper 100 of Patent Document 2, and uses the moment adjustment means to adjust the ease of opening of the blades 103 (moment of force) by adjusting the force of the counterweight 121 relative to the lever portion 120. It is possible to adjust the activation start pressure to a predetermined pressure over a wide range regardless of the fixed position or number of pieces, prevents parts from loosening due to vibration, and uses materials with excellent durability and weather resistance, making it highly maintainable and versatile. The purpose is to adopt a wide pressure adjustment damper.

With the development of such a pressure regulating damper, by employing a pressure regulating damper that can eliminate backflow in the exhaust air duct in the outdoor device 200 described in Patent Document 1, the exhaust of air conditioning equipment using the pressure regulating damper can be improved. The purpose is to provide equipment.

Accordingly, claim 1 as a means for solving the above-mentioned problems of the present invention is directed to a building that is provided with a connection opening between an outdoor exhaust opening and an exhaust opening of an outdoor unit of a packaged air conditioner. In an exhaust flow path of an air conditioner configured to allow exhaust air from the outdoor unit to be discharged to the outside via an air duct member having an opening, moment adjustment is provided on a surface of the duct member facing the outdoor exhaust opening. A pressure regulating damper having a moment adjusting means is provided, and a pressure regulating damper having a moment regulating means is mounted on a surface of the duct member opposite to the outdoor discharge opening, and a pressure regulating damper having a moment regulating means is installed on a surface of the duct member opposite to the outdoor discharge opening, and The wind is discharged through the pressure adjustment damper, and the moment adjustment means provided in the pressure adjustment damper includes an arm attached to the back side of a blade that can be opened and closed in the front opening of the frame body, and a moment adjustment means provided in the pressure adjustment damper. By providing a balance weight whose fixed position is variable, it is possible to prevent short circuit phenomena and system abnormalities caused by backflow of exhaust from the outdoor unit due to outside wind from the outdoor exhaust opening of the duct member. In the discharge device for an air conditioner, the pressure adjustment damper is equipped with pressure adjustment blades that can be opened and closed at the front opening of a frame body that has openings on both front and rear surfaces, and moment adjustment means is attached to the blades. In the pressure adjustment damper, the blade is configured by one or more blades, and the moment adjustment means includes an arm attached to the blade, a balance weight attached to the arm, and a pressure adjustment damper configured to provide a pressure adjustment damper with respect to the mounting surface of the blade. The present invention is characterized in that it is constructed by a pressure adjustment damper constructed by providing an arm angle adjustment means for changing the angle.

According to a second aspect of the present invention, in the discharge device for an air conditioner according to the first or second aspect, the pressure adjusting damper is equipped with a pressure adjusting blade that can be freely opened and closed in a front opening of a frame body having openings on both front and rear sides. In addition, in the pressure adjustment damper configured by providing a moment adjustment means on the blade, the blade is configured with one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight on the arm. and an arm angle adjustment means for changing the angle of the blade with respect to the mounting surface, and the arm attached to the blade of the moment adjustment means is constituted by a pressure adjustment damper constituted by one or more arms. shall be.

According to a third aspect of the present invention, in the discharge device for an air conditioner according to the first or second aspect, the pressure regulating damper is equipped with a pressure regulating vane that can be freely opened and closed in a front opening of a frame body having openings on both front and rear sides. In addition, in the pressure adjustment damper configured by providing a moment adjustment means on the blade, the blade is constituted by one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight on the arm. and an arm angle adjusting means for changing the angle of the blade with respect to the mounting surface, and the balance weight of the arm attached to the blade of the moment adjusting means is attached movably in the length direction of the arm, and its fixed position is fixed. It is characterized by being configured so that it can be adjusted.

According to a fourth aspect of the present invention, in the discharge device for an air conditioner according to the first or second aspect, the pressure regulating damper is equipped with a pressure regulating vane that can be opened and closed in a front opening of a frame body having openings on both front and rear sides. In addition, in the pressure adjustment damper configured by providing a moment adjustment means on the blade, the blade is configured with one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight on the arm. and an arm angle adjustment means for changing the angle of the blade with respect to the mounting surface, and the arm angle adjustment means of the moment adjustment means is adapted to the damper adjustment conditions from a plurality of arms having different bending angles of the bending portion. It is characterized in that it is constructed by selecting and attaching an arm to be attached.

According to the exhaust device for an air conditioner according to claims 1 to 4 of the present invention, instead of the pressure adjusting means such as an auxiliary fan that is essential for adjusting the pressure of the duct member in the conventional Patent Document 1, By equipping the pressure regulating damper of the invention on the outlet side of the flow path, there is no need for a dedicated outdoor device that takes measures against outside wind pressure as shown in Patent Document 1. Additionally, it eliminates the need for an automatic control system or electrical work for pressure adjustment, lowers overall equipment costs, prevents system abnormalities due to short circuits of waste heat, and maintains stable air conditioner operating conditions. It is possible to provide an exhaust system that can perform

Further, according to the pressure adjustment damper for the exhaust system of an air conditioner according to claims 2 to 4 of the present invention, in the configuration of the blade, the moment adjustment means for adjusting the ease of opening (moment of force) of the blade is arranged depending on the number of arms. In addition to adjusting the pressure by increasing or decreasing the number of balance weights, by providing a means for adjusting the angle of the arm blade relative to the mounting surface, it provides highly versatile performance ranging from a wide range of pressure adjustments to fine adjustments, and also adjusts the pressure at the start of the pressure adjustment damper's operation. In addition to being easy and quick to adjust, it is durable enough to prevent parts (arms, balance weights, screws) from falling off during long-term outdoor operations. This durability ensures stable operation of the pressure adjustment mechanism and prevents parts from falling on passersby downstairs. Further, by reducing the number of parts, it is possible to contribute to simplifying maintenance.

FIG. 1 is a partially cutaway front view showing Embodiment 1 of the pressure regulating damper of the present invention. FIG. 2 is a partially cut away longitudinal side view showing Embodiment 1 of the pressure regulating damper of the present invention. FIG. 3 is a partially cutaway front view showing Embodiment 2 of the pressure regulating damper of the present invention. FIG. 4 is a partially cutaway side view showing Embodiment 2 of the pressure regulating damper of the present invention. FIG. 5 is a partially cutaway longitudinal side view showing Embodiment 2 of the pressure regulating damper of the present invention. FIG. 6 is an explanatory diagram showing an embodiment of the arm angle adjusting means. FIG. 7 is an explanatory diagram showing an embodiment of the arm angle adjustment means. FIG. 8 is an explanatory diagram of the operation of the arm angle adjustment means in FIGS. 6 and 7. FIGS. 9(a) and 9(b) are explanatory diagrams showing an embodiment of the arm angle adjusting means, which is a different embodiment from FIGS. 6 and 7. FIG. 10 is an explanatory diagram showing an embodiment of the arm angle adjusting means, which is a different embodiment from those shown in FIGS. 6 to 9. FIGS. 11(a) to 11(c) are explanatory diagrams showing an embodiment of the arm angle adjusting means, which is a different embodiment from those shown in FIGS. 6 to 10. FIG. 12 is an explanatory diagram showing Embodiment 1 of an outdoor device of a packaged air conditioner for a server room according to the present invention. FIG. 13 is an explanatory diagram showing a state in which the outdoor device of the packaged air conditioner for a server room according to the second embodiment of the present invention is attached to a building. FIG. 14 is an explanatory diagram showing Embodiment 2 of an outdoor device of a packaged air conditioner for a server room according to the present invention. FIG. 15 is a side sectional view of the fine pressure adjustment damper of Patent Document 2. FIG. 16 is an explanatory diagram of moment adjustment means in a conventional pressure adjustment damper. FIG. 17 is an explanatory diagram of moment adjustment means in a conventional pressure adjustment damper. FIG. 18 is a side sectional view of the outdoor device of Patent Document 1. FIG. 19 is a perspective view of the outdoor device of Patent Document 1

The air conditioner exhaust device of the present invention discharges air from the outdoor unit through a duct member comprising a connection opening between an outdoor exhaust opening and an exhaust opening of an outdoor unit of an air conditioner such as a packaged air conditioner. In the exhaust flow path of an air conditioner configured to discharge exhaust gas to the outside, a pressure adjustment damper having a moment adjustment means is provided on the surface of the duct member facing the outdoor exhaust opening. do.

Embodiment 1 of a pressure regulating damper 1 in an exhaust system for an air conditioner according to the present invention will be described with reference to FIGS. 1 and 2. FIG.
FIG. 1 is a front view of the damper 1, and FIG. 2 is a side view in longitudinal section of the same figure.

In FIG. 1, reference numeral 10 denotes a case consisting of a rectangular frame, and a blade 2 is attached to a front opening 10a of the case 10 so as to be openable and closable via a rotating shaft 23 of a bearing 22 attached to the left and right frames 11 and 12. At the same time, a punching cover 13 is provided in the rear opening 10b.

Further, a plurality of counterweights 14 are detachably attached to the back surface of the blade 2, and an arm 3 is detachably attached to an arm support stand 15 fixed to the center of the front surface, and a balance weight 4 is attached to the arm 3. is configured by attaching the arm 3 at a variable attachment position in the length direction of the arm 3.

In addition, in order to detachably attach the mounting end 3a to the arm support 15, the arm 3 is inserted into the mounting hole 15a provided in the arm support 15, and then the tightening screw is inserted. 16, but if necessary, after inserting the mounting end 3a of the arm 3 into the mounting hole 15a of the arm support base 15, it can be welded or the like. It is also possible to fix it by fixing it without using the tightening screw 16.

16 and 17 are tightening screws for the arm 3 and balance weight 4, 18 is a packing attached to the opening edge of the front opening 10a of the case 10, 19 is a support frame for mounting the blade 2, and 20 is the support frame 19. A fixing screw 21 is fixed to the frame of the case 10, and a nut 21 is used to prevent the balance weight 4 from falling off.

As shown in FIG. 2, the pressure regulating damper 1 having the above-mentioned structure is constructed by attaching the case 10 of the pressure regulating damper 1 to the opening 32 opened in the mounting frame 31 of the required building via the gasket 33. It is configured by attaching the

3 to 5 show Example 2 of the pressure adjustment damper 1 of Example 1. In the configuration of the pressure adjustment damper 1 shown in Example 1 of FIG. 1, the blades 2 of Example 1 of FIG. It is constructed by attaching two blades 2a and 2b to an opening 10a of a case 10 so as to be openable and closable.

The two blades 2a and 2b individually exhibit the function and effect of the blade 2 in the first embodiment, and have a structure that functions as a moment adjustment means for finely adjusting the ease of opening against the external wind pressure 6. This is what I did.
Note that the configurations of the blades 2a, 2b and other configurations in FIGS. 3 to 5 are the same as those in FIGS. 1 and 2, so the same numbers are given, and the explanation thereof will be omitted.

In addition, each blade 2a, 2b of the pressure adjustment damper 1 of the second embodiment is provided with a stopper mechanism 26 for pressure adjustment, thereby controlling and adjusting the operating state of each blade 2a, 2b. It is configured so that it can be
Note that 24 is a rectifying plate stretched over the opening 10a, and 25 is a side plate provided on the back opening 10b.

The pressure regulating damper 1 explained in the above embodiments 1 and 2 was constructed by attaching the blades 2, 2a, 2b to the opening 10a so as to be openable and closable, but other embodiments may be used. This can also be implemented by applying a fine pressure adjustment damper (not shown) described in Japanese Utility Model Application No. 64-1344.
Incidentally, the description of the fine pressure adjustment damper described in Japanese Utility Model Application Publication No. 1344/1984 refers to the invention described in the same publication, and the description and illustration thereof will be omitted.

Now, in the pressure adjustment damper 1 having the above configuration, the function as a moment adjustment means for the external wind pressure 30 is achieved by the blades 2 attached to the case 10, and this operational configuration is shown in FIG. This will be explained more specifically.

First, the external wind pressure 30 shown in FIG. 8 can be avoided by the dead weight (blade weight) of the blade 2 of the pressure adjustment damper 1, but an arm 3 is attached to the blade 2 in FIG. It is possible to configure the balance weight 4 to be movably attached at a fixed position and to be detachable, or to increase or decrease the number of balance weights.
Furthermore, a configuration has been described in which a plurality of counterweights 14 are attached to the back surface of the blade 2 in a manner that they can be attached or detached and the number can be increased or decreased.

However, although the blades 2 are used to evacuate the external wind pressure 30 and discharge the air through the opening 10a provided in the case 10 of the pressure adjustment damper 1, as described above, the action of the moment adjustment means by the blades 2 is As shown in FIG. 1, the configuration means can be configured by adjusting the blade 2, the arm 3, the balance weight 4 therebetween, and changing the mounting position thereof.

The balance weight 4 and its mounting position can be adjusted to any desired pressure by creating a correlation graph between the air duct internal pressure value and the balance weight 4 position in advance.

That is, in addition to adjusting the pressure by the weight of the blade 2, by attaching the arm 3, attaching the balance weight 4 to it and changing its attachment position, or changing the number of balance weights 4 attached, the pressure adjustment damper 1 can be adjusted to the outside wind pressure 30. The ease of opening (moment of force) can be adjusted.

However, depending on the moment adjustment means with such a configuration, the tightening screw 17 is required to fix the balance weight 4 to the arm 3, and adjustment by the mounting position requires changing the mounting position. At the same time, the mounting position is limited to the length range of the arm 3.

Therefore, the angle 3A of the arm 3 between the weight position A and the weight position B of the balance weight 4 shown in FIG. By changing , the ease with which the blades 2 open (moment of force M) relative to the external wind pressure 30 changes (that is, the ease with which the blades 2 open changes), and at the same time, the pressure can be adjusted over a wide range and the pressure adjustment damper 1 can be adjusted in a wide range. Since the actuation start pressure can be adjusted steplessly and a wide moment adjustment range can be ensured, the pressure adjustment range can be widened.

In addition, in FIG. 8, if the ease of opening of the blade 2 is defined as the moment of force M, the moment of force M=F×L (F: force, L: distance from the fulcrum (axis)) is obtained, and as shown in FIG. Also, moment of force M=F × L (F: force, F _A , F _B : sum of blade weight and weight weight at weight balance mounting position A or B, L: distance from fulcrum, L _A , L _B : distance from the fulcrum at weight balance position A or B).

Further, a specific configuration means for changing the angle 3A of the balance weight 4 from the weight position A to the weight position B of the arm 3 will be specifically explained in Embodiment 3 of FIGS. 6 and 7. .

In addition, in FIG. 2, the dead weight of the blade 2 can be changed by a counterweight 14 detachably attached to the back surface of the blade 2, and this structure also acts as a moment adjustment means for the external wind pressure 30. Needless to say.

6 and 7 show a third embodiment of the pressure adjusting damper 1 of the present invention, in particular, the angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 explained in FIG. By changing the angle of the weight position B), the ease with which the blades 2 open relative to the external wind pressure 30 can be adjusted in a stepless manner.

Therefore, an example of a specific configuration as an angle adjusting means of the arm 3 for adjusting the angle 3A is shown.

6 and 7 show that the attachment surface of the blade 2 of the arm 3 is adjusted by interposing a ratchet mechanism 27 between the support base 15 for attaching the arm 3 to the attachment surface of the blade 2 and the arm 3 as an angle adjustment means. The structure is such that it can be firmly fixed while adjusting the angle 3A with respect to 2A (angle 3A between weight position A and weight position B in FIG. 8).

That is, in FIG. 6, a ratchet pawl 28 is provided on the base 3b of the arm 3 on the side where the support base 15 of the arm 3 is attached to the blade 2 of the pressure adjustment damper 1, and a ratchet gear 29 is provided on the attachment portion 3c of the balance weight 4 of the arm 3. By interposing a ratchet mechanism 27 between the base 3b of the arm 3 and the attachment part 3c of the balance weight 4, an angle adjusting means for the attachment surface 2A of the blade 2 of the arm 3 is constructed.

In addition, in the ratchet mechanism 27 of FIG. 6, for example, the position of the balance weight 4 is adjusted to adjust the angle 3A with respect to the mounting surface 2A of the blade 2 in five stages: 0°, 30°, -30°, -60°, and -90°. Examples of this can be given.

As for the structure of the ratchet mechanism 27, a conventionally known ratchet can be used, and the ratchet gear 29 can be rotated only in one direction, and the ratchet pawl 28 is controlled by the ON/OFF switching lever 28a. can be controlled.

9 and 10 show an embodiment in which a stepped washer mechanism 60 is used instead of the ratchet mechanism 27 as the vertical angle adjusting means of the arm 3 in the configuration of the pressure regulating damper 1 of the third embodiment. It is something.

That is, in FIG. 9, the arm 3 attached to the blade 2 is constructed by a pair of battledore bolts 61 and 62 shown in FIG. 63, and by interposing a stepped washer mechanism 60 in this pivot portion 64, the battledore bolt 62 (attachment portion 3c of the balance weight 4) can be attached to the battledore bolt 61 (base 3b of the arm 3). It is configured by connecting the blades 3 in a variable angle, so that the angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 can be varied steplessly.

As shown in FIG. 9(b), the stepped washer mechanism 60 is interposed in the pivoting portion 64 between the battledore portions 61a, 62a by the pivot bolt 63 of the battledore bolts 61, 62. Washers 65 to 67 are interposed in between, and spring washers 68 and 69 are interposed on the outermost sides, respectively, and double nuts 70 and 71 for tightening these are screwed onto the pivot bolt 63. There is.

That is, by variably adjusting the angle of the battledore bolt 62 with respect to the battledore bolt 61 while loosening the fastening force of the double nuts 70 and 71 on the pivoting portions 64 of the battledore parts 61a and 62a, and then adjusting and fixing this to the required angle. It is constructed so that the angle 3A of the arm 3 with respect to the mounting surface 2A of the blade 2 can be adjusted, and a desired effect as an angle adjustment means can be obtained.

Although the configuration of the arm 3 in FIG. 9(a) is not shown in detail, it is implemented with the same configuration as in Examples 1 to 3, and the mounting end of the arm 3 is When the bolt portion 61b end portion 61c of the battledore bolt 61 as 3a is removably attached to the attachment hole 15a provided in the support base 15 of the blade 2, a screw hole (not shown) is inserted into the attachment hole 15a of the support base 15. ), and attach it by screwing the end 61c of the bolt part 61b, and if it is not necessary to make it removable, fix the end 61C to the mounting hole 15a by means such as welding. Implemented by.

Further, the balance weight 4 can be attached to the bolt portion 62b of the battledore bolt 62 so as to be freely threadable (movable) in the length direction of the screw of the bolt portion 62b.

Note that specific examples of these configurations will be clearly explained in the example of FIG. 10, which will be described later.

Reference numeral 72 in FIG. 9(b) indicates a plate fixing nut fixed to the end 63a of the pivot bolt 63.

Next, what is shown in FIG. 10 is that the configuration of the spring washers 68, 69 and washers 65 to 67 of the stepped washer mechanism 60 in FIG. This shows an embodiment in which the stepped washer mechanism 60 is constructed by interposing locking washers 73 and 74 on opposing surfaces of the portions 61a and 62a.

In FIG. 10, the same reference numerals are given to the configurations described in the embodiments of FIGS. 9(a) and 9(b), and the description thereof will be omitted.

Note that 73 and 74 in FIG. 10 indicate nuts for fixing the balance weight 4 attached to the bolt portion 62b of the battledore bolt 62 so as to be movable and adjustable in the length direction of the bolt portion 62b.

Therefore, the arm 3 composed of the pair of battledore bolts 61 and 62 shown in FIG. It is attached by fitting it into the hole 15a.

Then, the locking washers 73 and 74 interposed on the opposing surfaces of the battledore parts 61a and 62a of the battledore bolts 61 and 62 constituting the stepped washer mechanism 60 are attached to the bolt head 63a of the pivot bolt 63 with the double nuts 70 and 71. By tightening, the pivot portions 64 of the battledore portions 61a, 62a of the battledore bolts 61, 62 can be fixed.

This fixed state can be changed to the mounting surface 2A of the blade 2 by rotating the battledore bolt 62 in the direction of the mounting surface 2A of the blade 2 while loosening the fastening force of the double nuts 70 and 71 of the pivot bolt 63. The angle 3A (the vertical angle of the arm) can be varied.

That is, by rotating the battledore bolt 62, the angle 3A of the mounting portion 3c of the balance weight 4 of the arm 3 relative to the mounting surface 2A of the blade 2 can be adjusted.

Then, after adjusting the battledore bolt 62 to the required angle by rotating and adjusting the battledore bolt 62, the double nuts 70 and 71 are again used to tighten the pivot portions 64 of the battledore portions 61a and 62b with a lock washer 73, 74, it is possible to achieve the mounting operation of the arm 3 at the required angle with respect to the mounting surface 2A of the blade 2, and the same operation that can be achieved by the angle adjustment means of the arm 3 according to the previous explanation can be achieved. It is also possible to achieve the following effects.

FIG. 11 shows another embodiment of the angle adjusting means in the configuration of the pressure regulating damper 1 described above.

11(a) to (c) are explanatory diagrams showing the main parts of the arm 3 configured to be detachably attached to the support base 15 of the blade 2 in the configuration of the pressure adjustment damper 1. It is.

In the configuration of the pressure regulating damper 1 described above, the angle of the arm 3 with respect to the mounting surface 2A of the blade 2 in FIG. 3A (that is, the angle in the vertical direction of the arm 3), and prepare each of the arms 3 shown in FIGS. The angle of the bent portion 80 of each arm 3 can be adjusted by selecting each arm 3 (an arm 3 that meets the damper adjustment conditions of the pressure adjustment damper 1) and attaching it to the support base 15 of the blade 2 accordingly. The desired pressure adjustment effect can be obtained.

In addition, in this embodiment, a plurality of arms 3 having bent portions 80 having a necessary angle are required, and at the same time, an operation for replacing the arms 3 is required. It is preferable to configure the arm 3 having a fixed bending angle with the pressure adjustable range required in 1, and to carry out the adjustment while adjusting with other moment adjustment means.

12 and 13 show an embodiment in which an exhaust system for an air conditioner according to the present invention is constructed using the pressure regulating damper 1 of Embodiments 1 to 3 described above, and FIG. 12 shows an embodiment as an outdoor device. FIG.

FIG. 12 shows an embodiment in which an air conditioner exhaust system 40 of the present invention is installed in an outdoor unit 41 of a packaged air conditioner on the balcony of a building. A duct member (L-shaped duct) 44 is provided with an opening 43 for connection to the exhaust outlet 41a. The duct member 44 has an outdoor discharge opening 42 in a direction facing the building.

The exhaust device 40 is equipped with the pressure adjusting damper 1 equipped with the moment adjusting means described in the first to third embodiments on the side wall portion 45 of the duct member 44 that faces the outdoor exhaust opening 42. Configure.

Further, FIG. 13 shows an embodiment in which the exhaust device 40 of FIG. 12 is installed on each floor balcony 51 of a data center building 50.

Therefore, according to the exhaust system 40 of FIG. 12, the air 52 taken in by the outdoor unit 41 from the outdoor units on each floor is exhausted to the outdoors 53 via the heat exchange exhaust duct member 44 in the outdoor unit 41.

When there is no wind or a weak wind outdoors 53 relative to the exhaust device 40, the exhaust can be discharged to the outside through the discharge opening 42 of the duct member 44 without any problem, but when the wind is strong, the exhaust from the outdoor unit 41 is pushed back by the strong wind.

However, according to the exhaust device 40 of the present invention, since the pressure adjustment damper 1 is provided on the side wall portion 45 of the duct member 44 on the side facing the discharge opening 42, the moment adjustment means using the blades 2 of the pressure adjustment damper 1 is provided. The exhaust gas pushed back by the strong wind can be discharged from the opening 10a of the pressure adjustment damper 1, and by maintaining the pressure inside the duct member 44 at a predetermined pressure close to atmospheric pressure, the exhaust device 40 can normally dissipate heat. Replacement exhaust gas can be exhausted to the outside through the exhaust opening 42 to prevent short circuit phenomena.

Therefore, it is possible to prevent the high temperature abnormality alarm from being issued in the packaged air conditioner of the outdoor unit 41 while avoiding the backflow of exhaust heat due to the backflow of exhaust gas to the outdoor unit 41 of the exhaust system 40 during strong winds using the pressure adjustment damper 1. can.

In other words, if a high temperature abnormality alarm is triggered, the packaged air conditioner will stop or its capacity will decrease, so if multiple air conditioners issue an alarm at the same time, the server equipment in the data center room will not be able to be cooled and the server equipment will stop abnormally. However, this problem can also be solved by the exhaust system 40 of the present invention.

FIG. 14 shows an embodiment in which, in place of the duct member 44 of the exhaust device 40 of the fourth embodiment, a silencing chamber 46 is provided above the outdoor unit 41 of a packaged air conditioner.

In the configuration of the sound damping chamber 46, the same components as those of the duct member 44 of the sixth embodiment are given the same numbers and the description thereof will be omitted.

Also, the same effects as in the sixth embodiment can be obtained, and the explanation thereof will be omitted.

1 Pressure adjustment damper 2, 2a, 2b Blade 2A Arm mounting surface 3 Arm 3A Arm 3 angle 3a Arm mounting end 3b Base 3c Mounting part 4 Balance weight 10 Case 10a Front opening 10b Rear opening 11 Right side frame 12 Left side frame 13 Punching cover 14 Counter weight 15 Support base 15a Mounting holes 16, 17 Tightening screw 18 Packing 19 Support frame 20 Fixing screw 21 Falling prevention nut 22 Bearing 23 Rotating shaft 24 Current plate 25 Side plate 26 Stopper mechanism 27 Ratchet mechanism 28 Ratchet claw 29 Ratchet gear 30 Outside wind pressure 31 Mounting frame 32 Opening 40 Exhaust device 41 Outdoor unit 41a Outdoor unit outlet 42 Outdoor exhaust opening 43 Connection opening 44 Duct member 45 Side wall 46 Sound deadening chamber 50 Building 51 Balcony 52 Intake 53 Outdoor 60 Stepped washer mechanism 61, 62 Battlefield bolt 61a, 62a Battlefield part 61b, 62b Bolt part 61c Bolt end 63 Pivot bolt 64 Pivot part 65 to 67 Washer 68, 69 Spring washer 70, 71 Double nut 72 Plate fixing nuts 73, 74 Locking washer 80 Bending portion 81 Angle adjustment portion

Claims (4)

An air conditioner configured so that exhaust gas from the outdoor unit can be discharged to the outside through a duct member comprising an opening for connecting an outdoor exhaust opening and an exhaust opening for an outdoor unit of a packaged air conditioner. In the exhaust flow path of the machine,
A pressure regulating damper including a moment regulating means is provided on the surface of the duct member facing the outdoor exhaust opening, and the air conditioner is configured such that exhaust gas from the outdoor unit can be discharged to the outside via the duct member. In addition to configuring the exhaust flow path of the machine,
A pressure regulating damper having a moment adjustment means is attached to the surface of the duct member facing the outdoor discharge opening, and the outside air flowing into the duct member from the outdoor discharge opening of the duct member is passed through the pressure regulating damper. In addition to discharging
The moment adjustment means provided in the pressure adjustment damper is provided with an arm attached to the back side of a blade that is attached to the front opening of the frame body so as to be openable and closable, and a balance weight whose fixing position is variable in the length direction of the arm. In a discharge device for an air conditioner configured to prevent occurrence of a short circuit phenomenon or system abnormality caused by backflow of exhaust gas from the outdoor unit due to outside wind from an outdoor discharge opening of the duct member,
The pressure regulating damper is configured by equipping a front opening of a frame body with openings on both front and rear surfaces with pressure regulating vanes that can be opened and closed, and providing a moment adjusting means on the vanes.
The blade may include one or more blades, and the moment adjustment means may include an arm attached to the blade, a balance weight attached to the arm, and arm angle adjustment means for changing the angle of the blade with respect to the mounting surface. An exhaust system for an air conditioner, characterized by comprising a pressure regulating damper constructed by. The pressure adjustment damper is equipped with pressure adjustment blades that can be opened and closed at the front opening of a frame body that has openings on both front and rear sides, and
In a pressure adjustment damper configured by providing moment adjustment means on the blade,
The blade includes one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight attached to the arm,
Claim: 1. An arm angle adjustment means for changing the angle of the blade with respect to a mounting surface is provided, and the arm attached to the blade of the moment adjustment means is constituted by a pressure adjustment damper constituted by one or a plurality of arms. 1. The exhaust system for an air conditioner according to 1. The pressure adjustment damper is equipped with pressure adjustment blades that can be opened and closed at the front opening of a frame body that has openings on both front and rear sides, and
In a pressure adjustment damper configured by providing moment adjustment means on the blade,
The blade includes one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight attached to the arm,
An arm angle adjustment means for changing the angle of the blade with respect to the mounting surface is provided, and a balance weight of the arm attached to the blade of the moment adjustment means is attached movably in the length direction of the arm, and its fixing position is adjusted. The exhaust system for an air conditioner according to claim 1 or 2, characterized in that it is configured to be able to perform. The pressure adjustment damper is equipped with pressure adjustment blades that can be opened and closed at the front opening of a frame body that has openings on both front and rear sides, and
In a pressure adjustment damper configured by providing moment adjustment means on the blade,
The blade includes one or more blades, and the moment adjustment means includes an arm attached to the blade and a balance weight attached to the arm,
An arm angle adjustment means for changing the angle of the blade with respect to the mounting surface is provided, and the arm angle adjustment means of the moment adjustment means selects an arm that satisfies damper adjustment conditions from a plurality of arms having different bending angles of bending portions. The exhaust system for an air conditioner according to any one of claims 1 to 3, characterized in that the exhaust system is constructed by attaching the air conditioner as an air conditioner.

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