SU1753192A1 - Unit for heat-and-moisture treatment of air - Google Patents

Abstract

SUMMARY OF THE INVENTION: Inside the housing 1 with the tray 2, sections 4 of the nozzles 3 of different porosity are placed in the lower part. Nozzles 3 are placed with decreasing porosity from top to bottom and are divided into stages, between which are placed the second pallet 7 and the first irrigator 8, connected with the heating heat carrier line. The sprayer 6 communicates with the pallet 7 and is placed above section 4 with a minimum porosity. In the pallet 2 placed the heater fluid 9. 1 Il. WITH

Description

The invention relates to air conditioning technology and can be used in air conditioning systems of civil and industrial buildings.

The closest to the technical essence of the present invention is an installation for heat and humidity treatment of air, comprising a housing with a tray in the lower part, an atomizer placed inside the housing and a sectional porous nozzle with sections placed with decreasing porosity from bottom to top.

- The disadvantage of the installation for heat and air treatment is the low thermodynamic efficiency caused by placing the porous nozzle with a decrease in porosity from bottom to top. With this arrangement of sections, the minimum amount of air enters the upper part of the installation and the maximum one. Since an irrigating liquid having a maximum temperature enters the upper section, the air at the outflow from the upper section will also have a maximum temperature. At the exit from the lower section, the air will have a minimum temperature. Practically at the exit from each section, the air temperature will be different. Mixing air with different temperatures leads to loss of exergy (thermodynamic loss). Increased air flow to the lower section of the installation with constant irrigation density the section, despite the slightly increased water inlet temperature, increases the risk of it being frozen at negative temperatures of the treated air. The purpose of the invention is to reduce thermal-dynamic losses by leveling the temperature field at the exit of the installation,

The goal is achieved by installing a unit for heat-humid air treatment, comprising a housing with a tray in the lower part, placed inside the housing of a nozzle section of different porosity and a line of heating coolant with a sprayer, provided with an additional tray two sprayers, while the nozzles are placed with decreasing porosity from above down and divided into stages, between which an additional pallet and the first irrigator are placed, connected with the heating coolant line, and the second additional sprayer communicates with the additional It is located above the section with minimal porosity.

Such a design of an installation for the heat-humid air treatment reduces the thermodynamic heat losses during the heating of air.

If the air consumption due to the change in porosity of the nozzle is reduced from top to bottom, i.e. simultaneously with a decrease in water temperature, then the heat load of each section, and consequently, the air temperature at the outlet of each section will be approximately the same. This will reduce the loss of xergy during air heating and end up with a higher air temperature at the outlet of the device.

The freezing on the lower section, where the temperature of the heating water will be minimal, is prevented by increasing the irrigation density of the lower section by increasing the flow rate of water supplied to the lower section.

But the drawing shows a diagram of the installation for heat and humidity air treatment.

The unit for heat and air treatment comprises a housing 1 with a pallet 2 in the lower part and a sectional porous nozzle 3 placed inside the case with sections 4 of different porosity, nozzles 5 and 6, installed respectively above the top section of the nozzle 3 and above the last section along the water. Between the stages of the nozzle of the latter, along the water section, the coolant from the additional pallet 7 is supplied to the coolant channel. The sprayer 6 is connected to the heating coolant line. , in the pallet 2 is placed the heater 9 fluid.

The installation works as follows.

The irrigating fluid, heated in the sump 2 by the heater 9, flows in parallel to the sprayer 5, located above the upper section of the nozzle, which has a maximum density, and to the sprayer, which is placed on the last section along the water. in the additional pallet 7, from where the sprinkler 8 is supplied, the water supplied from the sprinkler 8 has about the same temperature as the water supplied from the sprayer b after cooling it in the upper stage of the lower porous section with a minimum porosity tip. To ensure this condition, the flow rates of the water supplied to the nozzles 5 and 6 are appropriately selected. In this mode of operation of the installation, the loss of exergy of the heating water is excluded.

The air enters the nozzle 3, contacts with water, is heated and supplied by the user. Since the upper section, where the water temperature is maximum, the maximum amount of air is supplied, and the rest, as the water temperature decreases, respectively, and less air, the air temperature at the outlet of each section will be about the same, which eliminates the loss of exergy during heating air,

Claims (1)

The invention The installation for heat treatment of air, comprising a housing about a subdo In the lower part, spaced on the hulls of a nozzle section of different porosity and a heating fluid line with a sprayer, characterized in that, in order to reduce thermodynamic losses by leveling the temperature field at the exit of the installation, it is equipped with an additional pallet and two sprayers, while the nozzles are placed with decreasing porosity from top to bottom and are divided into stages, between which an additional pallet and the first irrigator are placed, connected to the heat-heating line (- Tanker, & A liner dispenser is in communication with an additional tray h placed above the section with a minimum porosity.