SU1495591A1 - Mixing valve for controlling plenum air temperature - Google Patents

Abstract

The invention allows to simplify the design and operation of the mixing valve. Case 1 with inlet and outlet ports 2,3,4 is U-shaped from a profile [-shaped section. The inner edges of the section serve as guides 6,7 for moving the flap 5. The side walls 8.9 of the housing 1 are extended beyond the bore 2. The drive 11 is installed between the guides 6,7 below the displacement level of the flap 5, which allows it to be rolled out or rolled up without dismantling the duct. 1 hp f-ly, 1 ill.

Description

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The invention relates to ventilation technology and serves to regulate the supply air temperature by mixing outside air and recirculated air.

The purpose of the invention is to simplify the design and operation.

The drawing shows a valve, a general view.

A mixing valve for adjusting the supply air temperature comprises a housing 1 with inlet 2 and 3 and 4 outlet openings, a damper 5 moving along the guides 6 and 7, and an actuator. The housing 1 is made in the form of a U-shaped profile of a C-shaped section, the inner edges keeping the specified supply air temperature in the outlet 4 at the same time.

Rolling out the flap 5 for maintenance and repair work is performed in the direction of the drive 11, releasing the clamping bar 16 and thus freeing the cable 14. In this case, the folding wall 19 pivots upward, freeing the passage for rolling out the flap 5.

The end positions of the valve 5 are determined by the actuator limit switches (not shown), which are adjusted during factory fabrication. To prevent air leaks

The cages of which serve as guides 6 and 7 for moving the valve 5, with the side t5 slots formed during the installation of the valve of the walls 8 and 9 of the housing 1 extended beyond the duct between the ducts, and the air passage holes 2 are sealed. The actuator is installed between the guides 6 and 7 below the level of movement of the valve 5.

The valve 5 is moved along the guides 6 and 7 on the rollers 10 by means of an actuator that has an actuator 11, on the shaft 12 of which the drum 13 is fixed. The cable 14, bending the drum 13 and the tension roller 15 are mounted under the valve 5. The cable 14 is fixed on the valve 25 by means of a clamping bar 16. Holes 2 and 3 are formed by partitions 17 and 18, which are fixed on the side walls 8 and 9 of the housing 1, and the partition wall is mounted on the partition wall 18.

The U-shaped shape of the housing 1 and the location of the actuator 11 inside the valve between walls 8 and 9 below the level of the valve 5 allows the valve 5 to be rolled out or rolled up without dismantling the air ducts and the valve itself, which simplifies operation.

Claims (2)

1. A mixing valve for regulating the supply air temperature, comprising a housing with inlets and outlets, a flap that is moved along 19, separating the location of the 30 guides, and the actuator, different drive from the air inlet 2. The valve operates as follows. When receiving a signal from a sensor or a control station (not shown), the actuator 11 rotates the drum 13, the fact that, in order to simplify the design and operation, the body is made of a U-shaped form of profile E; -shaped section, the inner edges of which serve as guides for moving the valve. winding or winding the cable 14, while 35 with the side walls of the housing extended flap 5, moving along guides to the limits of the air flow opening. 6 and 7, changes the ratio of the input ratios 2. Valve according to claim I, characterized in that Versions 2 and 3, intended to feed the drive is installed between the guides external and recirculated air, below the level of the flap movement. thereby maintaining the desired supply air temperature at the outlet 4. Rolling out the flap 5 for maintenance and repair work is performed in the direction of the drive 11, releasing the clamping bar 16 and thus freeing the cable 14. In this case, the folding wall 19 pivots upward, freeing the passage for rolling out the flap 5. The end positions of the valve 5 are determined by the actuator limit switches (not shown), which are adjusted during factory fabrication. To prevent air leaks The gaps formed when the valve is installed between the air ducts are sealed with gaskets. The U-shaped shape of the housing 1 and the location of the actuator 11 inside the valve between walls 8 and 9 below the level of the valve 5 allows the valve 5 to be rolled out or rolled up without dismantling the air ducts and the valve itself, which simplifies operation. Invention Formula 1. A mixing valve for regulating the supply air temperature, comprising a housing with inlets and outlets, a flap that is moved along the fact that, in order to simplify the design and operation, the body is made of a U-shaped form of profile E; -shaped section, the inner edges of which serve as guides for moving the valve.