CN202277915U - Self-excitation pulse aeration shower nozzle - Google Patents

Abstract

The utility model relates to a water jet cleaning device suitable for low pressure, through which the continuous water jet entering the nozzle is transformed into a water-air mixed jet and sprayed out, which can produce a better flushing effect and save water , this self-excited pulse aerated nozzle can be used in cleaning and other fields. This water-air mixed jet replaces the ordinary jet, and the water consumption can be reduced under the same injection volume, and the scouring effect of this jet is better than that of the ordinary jet with the same pressure. This self-excited pulse aerated nozzle has outstanding advantages compared with ordinary water jet nozzles when it is used in cleaning, scouring and other fields.

Description

Self-excited pulse aerated nozzle

technical field

The utility model relates to a water jet cleaning device suitable for low pressure. The continuous water jet entering the nozzle is transformed into an air-water mixed jet through the nozzle, which can produce better flushing effect and save water. , this self-excited pulse aerated nozzle can be used in cleaning and other fields. the

Background technique

At present, water jet injection technology is widely used in cleaning, scouring and other fields. Low-pressure water jets are mostly used for cleaning and scouring of food processing, agricultural products, kitchen utensils, and environmental cleaning. These cleaning and flushing volumes are large and wide, and the water consumption is relatively large. Under the situation that water resources are increasingly precious, it is of great practical significance to develop water-saving cleaning technologies. This kind of self-excited pulse aerated nozzle is a cleaning technology with better flushing effect and obvious water-saving effect under the condition of using low-pressure water jet. the

Contents of the invention

The utility model aims at the application of water jet injection technology in cleaning, scouring, etc., and designs a self-excited pulse aerated nozzle suitable for use in the case of low water pressure. The utility model utilizes the energy of the water jet flowing into the nozzle to automatically Inhale after shocking and oscillating, mix water and air in the nozzle to become water-air two-phase bubble flow or mist flow and then spray out the nozzle. the

The purpose of this utility model can be realized according to the following technical solutions:

The utility model provides a self-excited pulse aeration nozzle, which has a water inlet nozzle, and is characterized in that it also has an oscillation chamber, a pulse nozzle, a reflection cone, an air suction chamber, an air suction hole and a spray pipe. The pulse nozzle is arranged at the center of the reflection cone, and the pulse nozzle communicates the oscillation chamber with the suction chamber. The nozzle, oscillation chamber, pulse nozzle, air suction chamber and injection pipe are arranged in sequence according to the upstream direction of the nozzle and the downstream direction of the injection pipe. An air suction hole is arranged at the upstream end of the air suction chamber, and the air suction hole communicates the air suction chamber with the outside. The diameters of nozzles, pulse nozzles and jet pipes increase one by one from the upstream direction to the downstream direction. After the installation is complete, the centerlines of the nozzles, pulse nozzles and jet pipes are on a straight line, and the nozzles, pulse nozzles and jet pipes are , the downstream end faces are all perpendicular to the center line. The components constituting the self-excited pulse air-entraining shower head have circular cross-sections in the direction perpendicular to the center line. the

The diameter of the pulse nozzle of the self-excited pulse aerated nozzle is 1.2 to 1.5 times the diameter of the nozzle; the diameter of the injection pipe is 1.2 to 1.5 times the diameter of the pulse nozzle, and the length of the injection pipe is the diameter of the injection pipe 3 times to 5 times. the

The distance from the nozzle end face of the self-excited pulse aerated nozzle to the upstream end face of the pulse nozzle is 2 to 3 times the diameter of the nozzle, and the distance from the end face of the pulse nozzle to the upstream end face of the jet pipe is the diameter of the pulse nozzle. 0.5 times to 1 times. the

The diameter of the oscillation chamber of the self-excited pulse aeration nozzle is 4 to 6 times the diameter of the nozzle; the diameter of the suction chamber is 4 to 5 times the diameter of the pulse nozzle. the

The suction hole of the self-excited pulse aeration nozzle is one or more circular or special-shaped holes. When the number of holes is more than one, the diameter or shape of each hole can be different. The end is arranged along the circumference, and the total flow area of all the holes is not less than the flow area of the jet tube. the

The suction hole of the self-excited pulse aeration nozzle is a circular hole, and can be connected with a suction pipe, and the flow area of the suction pipe is not smaller than the flow area of the injection pipe. the

The self-excited pulse aeration nozzle proposed by the utility model has the following beneficial effects:

The water-air two-phase water jet sprayed by the utility model can improve the scouring performance of the water jet and save water under the same pressure and the same injection volume as the water jet sprayed by the common nozzle. It can also be used under submerged conditions when the suction line is connected. This self-excited pulse aerated nozzle has outstanding advantages compared with ordinary water jet nozzles when it is used in cleaning, scouring and other fields. the

Description of drawings

Fig. 1 is a schematic cross-sectional view of the structure of the utility model. the

Figure 1 reference signs: nozzle (1), oscillation cavity (2), pulse nozzle (3), reflection cone (4), suction cavity (5), suction hole (6), jet tube (7) . the

Fig. 2 is the schematic diagram of connecting suction pipe (8) of the utility model. the

Figure 2 reference signs: nozzle (1), oscillation cavity (2), pulse nozzle (3), reflection cone (4), suction cavity (5), suction hole (6), jet tube (7) , suction pipe (8). the

Detailed ways

The utility model is further explained in conjunction with examples (accompanying drawings):

As shown in Figure 1, a self-excited pulse aeration nozzle has a water inlet nozzle (1), and is characterized in that it also has an oscillation cavity (2), a pulse nozzle (3), a reflection cone (4), an air suction cavity ( 5), suction hole (6) and injection pipe (7). The pulse nozzle (3) is arranged at the center of the reflection cone (4), and the pulse nozzle (3) communicates the oscillation chamber (2) with the suction chamber (5). The nozzle (1), oscillation chamber (2), pulse nozzle (3), suction chamber (5) and injection pipe (7) are in the upstream direction of the nozzle (1), and the downstream direction of the injection pipe (7) order setting. An air suction hole (6) is arranged at the upstream end of the air suction chamber (5), and the air suction hole (6) communicates the air suction chamber (5) with the outside. The diameters of nozzle (1), pulse nozzle (3) and injection pipe (7) are increased one by one from the upstream direction to the downstream direction. ) center line on a straight line, nozzle (1), pulse nozzle (3) and injection pipe (7) upstream and downstream end faces are all perpendicular to the center line. The components constituting the self-excited pulse air-entraining shower head have circular cross-sections in the direction perpendicular to the center line. the

The diameter of the pulse nozzle (3) of the self-excited pulse aeration nozzle as shown in Figure 1 is 1.2 times to 1.5 times the diameter of the nozzle (1); the diameter of the injection pipe (7) is 1.2 times the diameter of the pulse nozzle (3) To 1.5 times, the length of the injection pipe (7) is 3 times to 5 times the diameter of the injection pipe (7). the

The distance from the nozzle (1) end face of the self-excited pulse aerated nozzle as shown in Figure 1 to the upstream end face of the pulse nozzle (3) is 2 to 3 times the diameter of the nozzle (1), and the distance from the downstream end face of the pulse nozzle (3) to The distance from the upstream end face of the jet tube (7) is 0.5 to 1 time the diameter of the pulse jet tube (3). the

The diameter of the oscillation chamber (2) of the self-excited pulse aeration nozzle shown in Figure 1 is 4 to 6 times the diameter of the nozzle (1); the diameter of the suction chamber (5) is 4 to 5 times the diameter of the pulse nozzle (3). times. the

The suction hole (6) of the self-excited pulse aeration nozzle as shown in Figure 1 is one or more circular or special-shaped holes. When the number of holes is more than one, the diameter or shape of each hole can be different. The upstream end of the air cavity (5) is arranged along the circumference, and the total flow area of all the holes is not less than the flow area of the injection pipe (7). the

The suction hole (6) of the self-excited pulse aeration nozzle as shown in Figure 2 is a circular hole, and can be connected with a suction pipe (8), and the flow area of the suction pipe (8) is not less than the injection pipe (7 ) flow area. the

The utility model is not limited to the above-mentioned embodiments, and the implemented embodiments are only explanations of the utility model rather than limitations of the utility model, and changes or modifications that do not deviate from the spirit of the utility model also belong to the scope of the utility model. the

Claims (6)

1. a self-excited pulse aeration shower nozzle has into water nozzle (1), the chamber (2) that it is characterized in that vibrating in addition, pulse jet pipe (3), reflection cone (4), suction muffler (5), suction hole (6) and playpipe (7); Described pulse jet pipe (3) is arranged on reflection cone (4) center, and pulse jet pipe (3) chamber (2) that will vibrate is communicated with suction muffler (5); Described nozzle (1), vibration chamber (2), pulse jet pipe (3), suction muffler (5) are pressed nozzle (1) with playpipe (7) and are updrift side, and playpipe (7) is provided with for the downstream direction order; Upstream extremity at suction muffler (5) is provided with suction hole (6), and suction hole (6) is with suction muffler (5) and external communications; The diameter of nozzle (1), pulse jet pipe (3) and playpipe (7) is by from the updrift side to the downstream direction, strengthening one by one; Be provided with complete after; The center line of nozzle (1), pulse jet pipe (3) and playpipe (7) point-blank, nozzle (1), pulse jet pipe (3) and playpipe (7) upstream and downstream end face are all perpendicular to described center line; The parts that constitute described self-excited pulse aeration shower nozzle all are annular in the cross section with described center line vertical direction.

2. according to the described self-excited pulse aeration of claim 1 shower nozzle, it is characterized in that: the diameter of described pulse jet pipe (3) is 1.2 times to 1.5 times of nozzle (1) diameter; The diameter of playpipe (7) is 1.2 times to 1.5 times of pulse jet pipe (3) diameter, and the length of playpipe (7) is 3 times to 5 times of playpipe (7) diameter dimension.

3. according to the described self-excited pulse aeration of claim 1 shower nozzle; It is characterized in that: described nozzle (1) end face is 2 times to 3 times of nozzle (1) diameter dimension to the distance of pulse jet pipe (3) upstream face, 0.5 times to 1 times of pulse jet pipe (3) diameter dimension that pulse jet pipe (3) downstream end face to the distance of playpipe (7) upstream face is.

4. according to the described self-excited pulse aeration of claim 1 shower nozzle, it is characterized in that: described vibration chamber (2) diameter is 4 times to 6 times of nozzle (1) diameter; Suction muffler (5) diameter is 4 times to 5 times of pulse jet pipe (3) diameter.

5. according to the described self-excited pulse aeration of claim 1 shower nozzle; It is characterized in that: described suction hole (6) is one or more circle or irregularly-shaped hole; When the quantity in hole is one when above; The diameter in each hole or shape can be inequality, and along the circumference setting, all the total area of passage in holes is not less than the area of passage of playpipe (7) at the upstream extremity of suction muffler (5).

6. according to claim 1 or 5 described self-excited pulse aeration shower nozzles, it is characterized in that: described suction hole (6) is a circular hole, and can connect an air intake duct (8), and the area of passage of air intake duct (8) is not less than the area of passage of playpipe (7).

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