SU1295160A1 - Device for moistening air - Google Patents

Abstract

The invention relates to an air-conditioning technique and makes it possible to increase the operational reliability of the device at negative air temperatures and the efficiency of air humidification. A liquid filled tray 4 is adjacent to the lower part of the duct (B) 1 and connected to it by means of transverse inlet and outlet slots 5 and 6, between which aerodynamic resistance 2 is installed. In slot 5 there is an air heater 8 3 is installed in front of the slit 5. The lower part B 1 is provided with thermal insulation 9 and plates Yu, lowered into the tray 4. The regulation of the air humidification is carried out by changing the aerodynamic resistance 2 and the position of the rotary flaps 7 installed in slots 5 and 6. Since Cold air moves along In 1, and heated, cooled air comes out of pallet 4, a small amount of air passing through pallet 4 is enough to humidify all air exiting from B-1 to 100% humidity. 2 hp ff, 4 ill. 7 s (L o: Fig.1

Description

The invention relates to air conditioning technology, namely to air humidification devices and can be used to maintain a high relative humidity of air in refrigerated rooms, for example, in low-temperature chambers for the storage of frozen products.

The purpose of the invention is to increase the reliability of operation at negative air temperatures and the efficiency of air humidification.

FIG. 1 is a schematic diagram of the device, side view, side view, FIG. 2 shows a section through AA to FIG. 1 in FIG. 3 is a diagram of the device with a gate valve; in fig. 4 - the same, with a rotary shutter.

A device for humidifying air contains air duct 1, aerodynamic resistance 2 installed in it, fan 3 and pallet 4 filled with fluid adjacent to the bottom of duct 1 and connected to it by means of transverse inlet and outlet slots 5 and 6, in which rotary shutters 7 are installed.

The device additionally contains an air heater 8 installed in the entrance slit 5, and a fan 3 is installed in front of the entrance slit 5, the aerodynamic resistance 2 is between slots 5 and 6, and the lower part

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duct 1 is provided with thermal insulation 9 and plates 10 lowered into the liquid of pallet 4.

The aerodynamic resistance 2 can be made in the form of a gate valve 11 or in the form of a rotary flap 12. A heater 13 is located in the pan 4. The flap gate 14 and the rotary flap 12 are equipped with actuators 14 with a relative humidity sensor 15.

The air humidifier works as follows.

The fan 3 draws air into the air duct 1. A part of the air is fed through the slit 5 into the sump 4 filled with liquid (water), heated by the heater 8. The passage above the liquid surface through the zigzag channel formed by the plates 10 is humidified It passes through the slit 6 and, without encountering obstacles, mixes with the air passing through duct 1. Heat insulation

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The chi 9 prevents the transfer of heat from the air in the pan 4 to the air passing through the duct 1.

The regulation of air humidification by changing the aerodynamic drag 2 is as follows. When the mobile flap 11 or the swing flap 12 is in the fully open position, the air passes through the tray 4 only with the help of the swing flaps 7. To stop the dampening, the swing flaps 7 are turned, closing the slots 5 and 6. If it is necessary to humidify the air to t / 100% , rotary shutters 7 are set at an angle of 70-80 ° to the plane of the pallet lid and gradually block the flow area of the duct with a movable valve 11 (Fig. 3) or a rotary shutter 12 (Fig. 4). This increases the proportion of air passing through pallet 4 and the proportion of air passing through duct 1, mine pallet 4 decreases accordingly. Moving slide valve 11 or rotary flap 12 is performed manually or by means of an actuator 14 controlled by a humidity sensor 15 air installed in a stream of humidified air at a distance of 1-2 m from the outlet section of the duct 1. When the proportion of air passing through the tray 4 becomes sufficient to achieve at the exit of the duct 100% relative effective humidity of the air, the sensor 15 gives a command to stop the movement of the moving element of the aerodynamic drag;

Due to the fact that cold air moves through the air duct 1, and heated humid air comes out of the pallet 4, a small amount of air passing through the pallet 4 is enough to humidify all the air leaving the air duct 1 to 100% humidity.

Claims (3)

1. A device for humidifying air, containing a duct, an aerodynamic resistance installed therein, a fan and a sump filled with liquid adjacent to the bottom 3 12951 The duct part thereto and communicated with it by means of transverse inlet and outlet slits, in which rotary flaps are installed, characterized in that, in order to improve reliability of operation at negative air temperatures and the efficiency of air humidification, the device additionally comprises an air heater, and a fan installed in front of the entrance slit, aerodynamic fO j O 60 4 the resistance is between the peaks, and the lower part of the duct is heat insulated and the plates are lowered into the sump fluid. 2. The device according to claim 1, wherein the aerodynamic drag is made in the form of a slide gate. 3. The device according to claim 1, wherein the aerodynamic drag is made in the form of a swing flap. FIG. 2 ten Thebes R /five / FIG. H Editor M.Blanar Compiled by G.Turunov Tehred A, Kravchuk Proofreader A.Zimokosov Order 606/43 Circulation 66U Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod Project Project, 4