SU739312A1 - Apparatus for heat and wet treatment of air - Google Patents

Description

(54) INSTALLATION FOR HEAT AND WET TREATMENT

I

The invention relates to ventilation and air conditioning, namely to air conditioners for treating air supplied to a room.

The installation is known. For the heat-humid treatment of air supplied to a room containing a heat exchanger and a reflux chamber arranged in series along the air path with a spray nozzle installed in it connected to the water supply pipeline from the sump of the irrigation chamber pallet 1.

The disadvantages of this installation are the high costs of the sprayed water for air treatment, and as a result, the increase in power consumption for spraying this water.

The purpose of the invention is to increase the efficiency of the installation.

The goal is achieved in that the installation further comprises a compressed air supply pipe connected to the nozzles and equipped with a control valve, the actuator of which is connected to the temperature sensor.

AIR

FIG. 1 shows the installation diagram; in fig. 2 is a diagram of a humid air condition.

The unit for heat and humidity treatment of the air supplied to the room 1 contains heat exchanger 2 and irrigation chamber 3 arranged in series along the air path with nozzles 4 installed in it connected to the water supply pipeline 5 from the irrigation pan 3 of the irrigation chamber 3, and mesh 1. The installation further comprises a compressed air supply pipe 8 connected to the nozzles 4 and equipped with a control valve 9, the actuator 10 of which is connected to the temperature sensor 7. Temperature sensors 11 and 12 are mounted in the pallet 6, and in room 1 there is a humidity sensor 13 connected to switch 14. Water is supplied to the nozzles through pipe 5 by means of a circulation pump 15, whose drive 16

20 is electrically connected to the limit switch 17 of the actuator 10. Air is supplied to the room 1 by the fan 18. Hot water is supplied to the heat exchanger 2 via a pipe 19, on which the control valve 20 is installed.

The installation works as follows.

The cold outside air in the design mode at point a or its mixture with recirculated air is heated in heat exchanger 2 to state at point B. Temperature at point is provided by temperature sensor 11 and control valve 20, which sets the required flow rate of heat carrier in heat exchanger 2.

The water in the sump 6 of the 3 irrigation adiabatic chamber takes the temperature of the wet thermometer that is processed by the air. Therefore, the And sensor installed in the pan 6 of the chamber tuned to the temperature of the wet thermometer at point c using heat exchanger 2 will always provide air parameters at the point% in the design mode. THROUGH the parameters of the air enters the chamber 3.

Thanks to the use of nozzles 4 with a compressed air supply pipe 8, which produces fine spray, the quality of which is regulated by changing the flow rate of compressed air, the process of cooling and moistening the air can be stopped at any desired point on the x-th line, for example at point d - -,:.:. ::. J Next, the air heats up; c in the fan 18 to point e and is supplied to the room where the comfortable air parameters f are ensured. In case of changing the parameters of the outside air (point g), the latter will be heated to the state at point h with the same heat content as at point 6, since the sensor 11 is set to the temperature of point c. The design pressure of compressed air in front of the nozzles 4 is selected so that the air of the condition at point 6 can be cooled and humidified to the state at point i, which, at constant and calculated heat and moisture emissions, provides comfortable air parameters j with tolerance of relative humidity . In the case of heat gains and, consequently; lowering the air temperature in the room, sensor 7 using valve 9 will reduce the pressure of compressed air in front of the nozzles 4, which will change the spray quality and reduce the cooling depth of the humidified air.

As a result, the air of the state at the point b will be cooled to the state at the point of different displacements, the former comfortable parameters f of the air will be ensured.

With further reductions in heat tolerance (for example, if you need to carry out a flood in a room), the air in the room will fall. In this connection, the temperature sensor 7 completely closes the valve 9, and the end switch on the switch 17, installed on the nozzle mechanism 10, otc: Makes the circulation pump 15 on the pipe 5, supplying water to the nozzles 4. At the same time, the inlet air will flow into the room in condition at point 6, and relative humidity in the room drops below the permissible level,

controlled by the humidity sensor 13.

In this connection, the impulse of the humidity sensor 13 will be transmitted via communication to the switch 14, which will connect the dew point temperature sensor 12 to the valve 20. The temperature sensor 12 in the pallet of chamber 3 is set

to a higher temperature at point k in comparison with sensor 11. Therefore, the supply air will be heated & heat exchanger 2 from the state in the str a to the state at the point i.

 7, the air temperature in the room opens the valve 9 in this case, and then the pump 15 is turned on by means of the limit switch 17. The supply air will be cooled to such a state at the point w, which will ensure the comfortable parameters of the air in the room.

By increasing heat gains in the displacement, the valve 9 by impulse from the sensor 7 will open. As a consequence, it is possible that the temperature difference between the supply air and the air in the room increases so much (point o) that it is relative. The relative humidity of the air in the room will exceed the specified limit (point p) of relative humidity. Sensor pulse

13, the humidity is transmitted again via communication to the switch 14, which will turn on sensor II, which is set to a lower temperature at point c, in the control circuit. As a result, the outside air will be preheated in the heat exchanger 2 to a state at the point

6. Humidified, for example, up to the state at point d, the supply air will provide the room with a comfortable temperature (f) within the specified relative humidity. It should be noted that

Switching the switch 14 from the pulse of the sensor 13 occurs only when the relative humidity in the room reaches a new, extreme, predetermined limit.

In the range of relative humidity, the position of the switch 14 is not

violated

In the proposed plant for air irrigation, pneumatic-acoustic nozzles 4 are used, and the regulation of the Teii process and the HBZ treatment; The ear is carried out mainly by the use of compressed air consumption.

In addition, due to low water consumption (less than 100 kg per hour per one nozzle), the possibility of c. implementation

no spraying of water in the irrigation chambers. This circumstance makes it possible to abandon the circulating water supply system with circulation pumps and fine filters. Water for the nozzle can be supplied directly from the water mains.

Claims (1)

Invention Formula The installation for heat and humidity treatment of the air supplied to the room, containing a heat exchanger arranged in series along the air path and an irrigation chamber with nozzles installed in it, connected to the water supply pipe from the sump of the irrigation chamber, and to increase efficiency, the installation additionally contains a compressed air supply pipeline connected to the nozzles and equipped with a control valve, the actuator of which Zan with temperature sensor. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 352093, cl. F 24 F 3/14, 1970.