CN205495874U - Flow atomizing nozzle from inhaling formula diphase - Google Patents

Abstract

A self-priming two-phase flow atomizing nozzle solves the problems of short shooting range of traditional atomizing nozzles, high cost of water storage containers, and difficult water replenishment. Including the inlet stable section, contraction section, expansion section, mixing chamber, water pipe transfer interface, and nozzle outlet; the contraction section and expansion section form a shrinking and expanding structure to increase the gas velocity; the mixing chamber is a cylindrical blind hole Realize the connection with the water pipe; one side of the water pipe adapter is connected to the mixing chamber through threads, and the other side is connected to the water pipe; the nozzle outlet is round to facilitate the spraying of water mist. The utility model has the advantages of normal pressure water storage, safety, convenience, low cost, good atomization effect, long shooting range, and good popularization value.

Description

Self-priming two-phase flow atomizing nozzle

technical field

The utility model relates to a self-suction two-phase flow atomizing nozzle, which is characterized in that the airflow is accelerated by a shrinking-expanding structure, and the high-speed airflow forms a negative pressure in the gas-liquid mixing chamber, and the water flow is self-absorbed into the mixing chamber and then collides with the high-speed airflow Produces a fine mist. It is a self-priming two-phase flow atomizing nozzle that accelerates the low-pressure airflow and collides with the normal-pressure water flow to produce fine water mist and spray it out for a certain distance.

Background technique

The self-priming two-phase flow atomizing nozzle is a nozzle that blows the liquid column or liquid film into droplets by means of the kinetic energy of the flowing gas. The distance of the spraying distance of the droplets and the requirement of the water flow on the storage equipment directly determine the nozzle. pros and cons. The air velocity of the two-phase flow atomizing nozzles currently on the market is mainly provided by the simple conversion of air pressure energy. The water flow of the spray nozzle mainly relies on the air pressure to provide pressure to the water storage equipment, which puts forward higher requirements on the pressure resistance and sealing performance of the water storage equipment, increases the equipment cost and lowers the water utilization rate.

Contents of the invention

The utility model provides a novel self-priming two-phase flow atomizing nozzle which utilizes low-pressure gas to provide power to spray fine water mist. and the expansion section, the low-pressure gas is accelerated through the contraction and expansion section of the nozzle, and the accelerated high-speed airflow will generate a Bernoulli effect in the gas-liquid mixing chamber to form a negative pressure, and the atmospheric pressure water will be sucked into the mixing chamber through the water flow channel, and the air flow and water flow A fine water mist is formed after collision in the mixing chamber.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1 is a schematic diagram of the structure of the nozzle.

Fig. 2 is a schematic diagram of the structure of the transfer interface.

The meanings of reference signs in the figure are: 1. nozzle outlet end; 2. mixing chamber; 3. expansion section; 4. contraction section; 5. inlet stabilization section;

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

Please refer to Fig. 1 and Fig. 2, a self-priming two-phase flow atomizing nozzle with a gas-liquid mixing chamber of the utility model, wherein, the inlet stable section 5 has an internal thread for connecting the gas pipeline; the mixing chamber 2 is a cylinder Shaped blind hole, the lower part has an internal thread for connecting with the water pipe transfer port 6; the outlet end 1 of the nozzle is a cylindrical hole; the water transfer pipe transfer port 6 is connected to the mixing chamber 2 through threads.

Please refer to Fig. 1 and Fig. 2, the working principle of the utility model: the low-pressure airflow enters the nozzle through the inlet stable section 5, after the airflow passes through the constriction section 4 and the expansion section 3, the airflow velocity is improved, and the high-speed airflow generates Bernoulli in the mixing chamber 2 Negative pressure is formed due to the effect of the negative pressure, so that the water flow is self-absorbed under the action of the negative pressure and enters the mixing chamber 2 through the water pipe transfer port 6, and the water flow and the air flow collide in the mixing chamber 2 to perform air-water emulsification. The surface tension is much lower than the viscosity and surface tension of water. The emulsion itself is very unstable, and it will be unstable and broken if there is a slight disturbance. The emulsion gathers in the mixing chamber 2 and maintains a certain pressure, and then flows from the nozzle The outlet port 1 of the head sprays out, and makes a second impact with the air to form a fine water mist.

The utility model is characterized in that the spraying distance of the fine water mist is long, the atomization effect is good, the water utilization rate is high, the gas pressure belongs to the low pressure range, the water is in the normal pressure state, and the requirements for the gas storage and water storage equipment are relatively low.

Claims (2)

1. The most self-priming two-phase flow atomizer, it is characterized in that: nozzle has gas channel and water stream channel, gas channel uses the structure of reducing and expansion shape, and gas channel includes entrance stable section, contraction section and expansion segment, and contraction section and expansion segment in gas channel can produce, to air-flow, the effect accelerated.
2. Self-priming two-phase flow atomizer the most according to claim 1, it is characterized in that: nozzle is with gas-liquid mixed chamber, the air-flow accelerated through gas channel reducing and expansion section produces Bernoulli effect at hybrid chamber, forming negative pressure in gas-liquid mixed chamber and through water stream channel, water at atmospheric pressure stream is sucked hybrid chamber, high velocity air and current produce collision in hybrid chamber and form water mists.