RU2005282C1 - Showering device - Google Patents

Abstract

Usage: in ventilation systems for creating a microclimate Summary of the invention: outlet openings are made in the end wall of the casing, overlapped by half-cylinder screens with opposed inlets. The side walls of the housing are made of upper and lower parts. The upper part is located on the side of the end wall and is made in the form of hinged dampers. The lower part consists of flexible metal rods wrapped in a polymer film .. 1 ill.

Description

The invention relates to the field of ventilation and can be used in rooms with large heat excesses to create a microclimate in small volumes, and also as a shelter from thermal radiation.

There are known choking nozzles for air showering with air supply at the place of permanent residence of workers (type series 5.904-31) 1.

The disadvantages of these choking nozzles are: the need to supply a large amount of supercooled supply air at a considerable speed in order to have directly favorable airflow parameters for the person at work;

significant aerodynamic drag of choking nozzles, high energy costs with a relatively weak hygienic effect;

a rather complex arrangement of pipes and their high metal consumption;

the impossibility of controlling the temperature of the air in the jet depending on the temperature of the outside air in the absence of air heaters (for workshops in which the main source of harmfulness is excess heat).

These drawbacks are due to the fact that these choking nozzles have to be located at a considerable distance from the workplaces in order to better mix the supplied air with the internal air in order to create comfortable conditions (low blowing speeds of the workplace, the supply air temperature at the workplace is close to comfortable) air of the room and to reduce the speed of its movement with the direct approach of the supply stream to the workplace. In addition, these pipes from the point of view of the cooling radiation effect cannot be considered as a cold screen due to the small size and distance from the workplace.

Closest to the claimed technical solution is an air diffuser, which comprises a housing with inlet and outlet openings, a rod located on the axis of the housing and mounted on it with the possibility of reciprocating movement under the influence of air flow reflector screen. The housing is provided with lateral exhaust windows overlapped by a shell rigidly connected to the reflector 2.

The presence of a reflector regulating the supply air supply does not improve the quality of the scent, with an increase in the supply air supply, the force of the dynamic pressure of the air flow to the reflector increases, under the influence of which it moves along the rod and extends from the housing, as a result of which the compact air stream is transformed into a conical one. In this case, the main air flow is directed past the workplace to create hygienic The effect requires a very large amount of supply air.

The essence of the invention lies in the fact that the choking device comprises a housing with side and end walls, in the latter there are made exhaust openings covered by semi-cylindrical ek-. wounds with opposing inlets. The side walls of the housing are made of composite upper and lower parts. In this case, the upper part of the side walls is located on the side of the end wall and is made in the form of hinged dampers, and the lower part of the side walls consists of flexible metal rods covered with a polymer film.

Flap flaps serve, if necessary, to mix warmer internal air into the supply stream.

The use of inlet openings covered by half-cylindrical screens and a polymer film stretched onto flexible metal rods makes it possible to obtain a directional jet. In addition, the flow swirling in the opposed openings and propagating with a large opening angle provides cooling of the side walls of the device and the formation of a cold surface near the working place, in order to improve the radiation vow. novices near the head, man.

The rods of the side surface of the housing are made of flexible metal so that, if necessary, the choke nozzle can be transformed.

A diagram of the choking device is shown in the drawing.

The shower device contains a metal air distribution end wall 1, which is the upper part of the shower pipe 2 with exhaust holes 3, overlapped by semi-cylindrical screens 4 of diameter d and width (2-3) d, which form the side opposed holes 5. To the end wall 1 is attached a framework of flexible metal rods 6 wrapped in a half-dimensional film. At the top of Dushira 0

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the inlet pipe includes hinged dampers 7 of width d, which are ball-mounted on the rods 8. Flexible rods 6 allow the choke tube to be transformed to change the direction of air flow.

The device operates as follows. The flow of fresh air entering the air distribution end wall 1. enters the opposing holes 5, limited by semi-cylindrical screens 4 of the choking device. After the collision of the two flows in the opposed openings 5, the swirling flow exits through the outlet 3 and then, limited by the walls of the scent pipe made of polymer material, mounted on flexible metal rods b, is directed to the workstation.

In this case, the central angle of the swirling jet is about 100-120 °, which ensures good mixing in the nozzle of the supplied cold air with intake through the rooms of the shutter 7 ajar for mixing with warm air, as well as a relatively uniform outflow from the nozzle with a speed of not more than 0. 25 m / s regardless

Claims (2)

j claims SHOULDER DEVICE containing a body with side and end walls, made in the last outlet, covered with lolucilindric shields, with inlet ops; positive openings, differing 1 the fact that, in order to create comfortable mustache from its height. The degree of opening of the shutters 7 is determined depending on the temperature of the outdoor and indoor air. In addition, the swirling flow provides cooling of the pipe walls and the formation of a cold surface near the workplace. Thus, the use of a scenting device allows you to create comfortable conditions in hot workplaces. 10, regardless of the outside temperature. The dehumidifier is easy to manufacture and does not require large material costs. Also reduced 15 energy and material costs during its operation, favorable climatic conditions are achieved in hot workplaces. Cost reduction is due to being warm 20, the internal air is mixed with cold air not to the fan, but directly at the workplace, and also thanks to the use of a polymer film instead of metal. 5 (56) 1. USSR Copyright Certificate No. 708117. cl. F 24 F 9/00, 1978. 2. USSR copyright certificate No. 1307171, cl. F 24 F 13/06, 1985. 0. The catch, the side walls of the housing are made of upper and lower parts, while the upper part of the side walls is located on the side of the end wall and is made in 5 in the form of hinged dampers, and the lower part {of the side walls consists of flexible metal bars wrapped in a polymer film, /