RU2300057C1 - Device for automatic additional humidifying of air - Google Patents

Abstract

FIELD: ventilation or conditioning of air.

SUBSTANCE: device comprises air-operated nozzles and a pipeline system for supplying water and compressed air to the nozzles. The device is additionally provided with a solenoid-controlled diaphragm valve that simultaneously represents a pressure regulator and actuator in the circuit of air humidity control, filter, and control system including the humidity transducer with controller. The diaphragm valve has coil and auxiliary valve connected with the base by means of diaphragm block.

EFFECT: enhanced reliability and efficiency.

1 cl, 2 dwg

Description

The invention relates to techniques for air conditioning and can be used to create comfortable microclimate conditions in industrial premises, in particular as local dampening systems.

The closest technical solution to the claimed object is a system according to the patent of the Russian Federation No. 2067730, class. F24F 3/06 of 10/10/96 containing a spray gun and a control unit.

Its disadvantage is the relatively low efficiency of the pneumatic spraying process.

The technical result is an increase in the efficiency and reliability of the process of pneumatic spraying of water.

This is achieved by the fact that in the system of automatic humidification of air, consisting of pneumatic nozzles, piping networks, which serve to supply water and compressed air to them, it additionally includes an electromagnetic sealless valve with electromagnetic control, which simultaneously acts as a pressure regulator “after itself” and is actuator in the scheme of regulating air humidity, as well as a filter and an automation system, including a humidity sensor with a regulator, and a membrane valve without seals n comprises a solenoid operated pilot valve spool and connected to the main unit through the membrane.

Figure 1 presents the control unit for the operation of pneumatic nozzles, figure 2 is a frontal section of an electro-pneumatic pressure regulator of a humidification system.

The automatic humidification system is designed to supply water directly from the network for cases when the water pressure in the system is not enough to supply it to the supply tank, which is under overpressure. The system of automatic humidification contains a diaphragm sealless valve with electromagnetic control (figure 2), which at the same time acts as a pressure regulator "after itself" and is an actuator in the air humidity control circuit.

The automatic control circuit for the humidification installation shown in Fig. 1 consists of water pipelines 1 and compressed air 2, nozzles (not shown), a pressure regulator 4, a filter 3, and an automation system. Compressed air, cleaned of oil and dust, is supplied to the nozzles, as well as through an additional filter 3 Ф-2, to the upper part of the electro-pneumatic pressure regulator 4 of the electronic pressure regulator (FIG. 2). Water from the water supply enters the lower part of the pressure regulator 4 and can only reach the humidifying nozzles if there is pressure in the upper part of the regulator that is sufficient to open the valve to supply water through the pressure reducer.

The diaphragm sealless valve with electromagnetic control is made with the following size ratios of its main elements, which are in the optimal range of values: H / D = 1.3 ... 1.5; where H is the height of the valveless valve body assembly, D is the diameter of the membrane assembly.

The system of automatic humidification works as follows.

If the pressures of compressed air (above the membrane) and water (under the membrane) are equal, the opening of the valve 1 passing water to the nozzles stops. Thus, a constant water pressure with very small fluctuations, not exceeding the pressure of compressed air, is maintained behind the valve and at the nozzles. When the pressure of compressed air decreases, the regulator valve is released and reduces the flow of water to the nozzles.

When the supply of compressed air stops, the flow of water to the nozzles is completely stopped. In the regulation scheme of the humidification system (Fig. 1), in addition to the ESWD, there is a 5 EHF humidity sensor with regulator 6 SPR-104. The controller sensor is installed at a characteristic point in the workshop. When the air humidity is above a predetermined value, the SPR-104 regulator gives a command pulse to the coil 7 of the EPRD controller (Fig. 2), the auxiliary valve 8 opens, and the space above the membrane communicates with the atmosphere, which is connected to the main 9 through a membrane unit consisting of cavities A and B.

The air pressure in this space drops, the valve 9 closes and reduces the access of water to the nozzles.

When the air humidity is lower than the specified regulator 6 SPR-104 removes power from the coil 7 of the EPPR regulator, the pressure above the valve membrane begins to increase. Valve 9 opens and the nozzles start working again.

The electronic throttle control regulator 4 is mounted at any height available for maintenance, but always below the nozzle plume level. This height determines the air pressure above the membrane, which usually does not exceed 2 ... 3 N / cm ² . Pressure control is carried out by a manometer on the water line after the valve. The pressure of the compressed air supplied to the nozzles should not exceed 10 ... 11 N / cm ² (1.0 ... 1.1 atm).

Claims (2)

1. The system of automatic humidification of air, consisting of pneumatic nozzles, piping networks used to supply water and compressed air to them, characterized in that it additionally includes a membrane sealless valve with electromagnetic control, simultaneously acting as a pressure regulator “after itself” and being an actuator in the scheme for regulating air humidity, as well as a filter and an automation system, including a humidity sensor with a regulator, and a diaphragm sealless valve comprises a solenoid operated pilot valve spool and connected to the main unit through the membrane. 2. The system of automatic humidification of air according to claim 1, characterized in that the membraneless sealless valve with electromagnetic control is made with the following size ratios of its main elements, which are in the optimal range of values: H / D = 1.3 ... 1.5 where H is the height of the valveless valve body assembly, D is the diameter of the membrane assembly.

Images