Multistage decompression and micro flow atomizing nozzle

Abstract

An atomizing nozzle including a nozzle body, a flow orifice plate, a multi-stage decompression sleeve and a dual-conical surface nozzle head. One end of the nozzle body opposite to the dual-conical surface nozzle head is provided with an external thread; one end of the nozzle body close to the dual-conical surface nozzle head is provided with an internal hole and an internal thread. The external thread of the nozzle body is connected to external equipment. The flow orifice plate, the multi-stage decompression sleeve and the dual-conical surface nozzle head are arranged in the internal hole. The flow orifice plate is arranged on one end of the dual-conical surface nozzle close to the external thread of the nozzle body. The multi-stage decompression sleeve is arranged on the flow orifice plate.

Claims

1. An atomizing nozzle, comprising: a) a nozzle body; b) a flow orifice plate; c) a multi-stage decompression sleeve; and d) a dual-conical surface nozzle head; wherein one end of the nozzle body opposite to the dual-conical surface nozzle head is provided with an external thread; one end of the nozzle body close to the dual-conical surface nozzle head is provided with an internal hole and an internal thread; the external thread of the nozzle body is configured to be connected to external equipment; the flow orifice plate, the multi-stage decompression sleeve and the dual-conical surface nozzle head are arranged in the internal hole; a plurality of flow holes is arranged on the flow orifice plate; the flow orifice plate is connected to the multi-stage decompression sleeve; a rotating flow channel having an angle of 20 degrees is arranged on the multi-stage decompression sleeve, wherein the angle of 20 degrees refers to an included angle between an axis of the rotating flow channel and a vertical axis; the rotating flow channel has an entrance opening arranged on an inner wall of the multi-stage decompression sleeve; the plurality of flow holes combined have a first cross-sectional area; the entrance opening has a second cross-sectional area; the first cross-sectional area is equal to the second cross-sectional area; and the dual-conical surface nozzle head comprises an external thread which matches the internal thread of the nozzle body; fixing holes are arranged on the dual-conical surface nozzle head to fix parts on the dual-conical surface nozzle head.

2. The atomizing nozzle of claim 1, wherein each of the plurality of flow holes is a round hole, a square hole or holes of other shapes.

3. The atomizing nozzle of claim 1, wherein both ends of the dual-conical surface nozzle head are dual conical surfaces with a conical angle of 140 degrees.

4. The atomizing nozzle of claim 1, wherein the dual-conical surface nozzle head and the nozzle body are connected by thread and tightened by the fixing holes, or connected by welding.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is described hereinbelow with reference to accompanying drawings, in which the sole FIGURE is a multistage decompression and micro flow atomizing nozzle of the invention.

(2) In the drawings, the following reference numbers are used: 1. nozzle body; 2. flow orifice plate; 3. multi-stage decompression sleeve; 4. dual-conical surface nozzle head; 5. thread of the nozzle body; 6. second flow hole; 7. first flow hole; 8. rotating flow channel with an angle of 20 degrees; 9. dual-conical surface with an angle of 140 degrees; and 10. fixing hole.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(3) For further illustrating the invention, experiments detailing a multistage decompression and micro flow atomizing nozzle are described below. It should be noted that the following examples are intended to describe and not to limit the invention.

(4) As shown in the sole FIGURE, a multistage decompression and micro flow atomizing nozzle comprises a nozzle body 1, a flow orifice plate 2, a multi-stage decompression sleeve 3, and a dual-conical surface nozzle head 4. An external thread 5 is arranged on the rear end of the nozzle body 1. An internal hole and an internal thread are arranged on the top of the nozzle body 1. The external thread 5 on the rear end of the nozzle body 1 is connected to external equipment. The flow orifice plate 2, the multi-stage decompression sleeve 3 and the dual-conical surface nozzle head 4 are arranged in the internal hole. The flow orifice plate 2 is arranged on the one end of the dual-conical surface nozzle close to the external thread of the nozzle body 5. The multi-stage decompression sleeve 3 is arranged on the flow orifice plate 2. The first flow hole 7 and the rotating flow channel 8 with an angle of 20 degrees are arranged on the multi-stage decompression sleeve 3. The rotating angle of 20 degrees refers to the included angle between the axis of the flow channel and the vertical axis. The external thread of the dual-conical surface nozzle head 4 matches the internal thread on the top of the nozzle body. Fixing holes are arranged on the dual-conical surface nozzle head 4. Other parts are fixed by the thread of the fixing hole on the dual-conical surface nozzle head 4.

(5) The second flow hole 6 for flow control is arranged on the flow orifice plate 2. The first flow hole 7 is arranged on one end of the multi-stage decompression sleeve 3. The other end is the rotating flow channel 8 with an angle of 20 degrees. Both ends of the dual-conical surface nozzle head 4 are the dual-conical surface 9 with an angle of 140 degrees. The central part of the dual-conical surface nozzle head has flow holes. One section of the central part has fixing holes 10.

(6) The second flow hole 6 is arranged on the flow orifice plate 2. At least 3 flow holes A 6 are arranged on the flow orifice plate 2. The number of the flow holes is determined by the specific flow rate. The second flow hole 6 may be a round hole, a square hole or holes of other shapes.

(7) The second flow hole 6 is arranged on the flow orifice plate 2 for flow control. The number and shape of the flow holes can be arranged according to the actual flow rate.

(8) One end of the multi-stage decompression sleeve 3 is a square flow channel or a round flow channel or flow channels of other shapes. The flow area is the same as the flow area of the flow orifice plate. The other end of the multi-stage decompression sleeve is the rotating flow channel 8. The included angle between the horizontal axis and the vertical axis which is 20 degrees can also be adjusted according to actual situations.

(9) One end of the multi-stage decompression sleeve 3 is the rotating flow channel 8 with an angle of 20 degrees. The included angle between the horizontal axis and the vertical axis which is 20 degrees can also be adjusted according to the rotating and atomizing conditions in practical application.

(10) The flow area of the second flow hole 6, the flow area of the first flow hole 7, the flow area of the rotating flow channel 8 with an angle of 20 degrees, and the flow area of the dual-conical surface nozzle head 4 are the same.

(11) The dual-conical surface nozzle head 4 and the nozzle body 1 are connected by thread and tightened by the fixing hole 10, or connected by welding or other connection methods.

(12) The nozzle body 1, the flow orifice plate 2, the multi-stage decompression sleeve 3, and the dual-conical surface nozzle head 4 are machined by using forging pieces and bar materials. Corresponding materials are chosen according to actual conditions and are not limited to specific materials.

EXAMPLE

(13) When a multistage decompression and micro flow atomizing nozzle operates, the nozzle body 1 is connected with external equipment, and the high-pressure medium firstly enters the flow orifice plate 2 and passes through a certain amount of flow holes A 6 of certain shapes to obtain the controlled flow rate.

(14) The high-pressure medium passes through the first flow hole 7 on one end of the multi-stage decompression sleeve 3 to realize the first-stage corner decompression and then passes through the rotating flow channel 8 with an angle of 20 degrees to realize multi-stage decompression. The included angle between the horizontal axis and the vertical axis is 20 degrees to realize the best rotating angle.

(15) The dual-conical surface 9 with an angle of 140 degrees on both ends of the dual-conical surface nozzle head 4 is convenient for the dispersion of the rotating medium to realize the best atomization effect. The external thread of the dual-conical surface nozzle head 4 matches the internal thread of the nozzle body 1. The dual-conical surface nozzle head 4 is tightened by fixing hole 10.

(16) The embodiment presents a multistage decompression and micro flow atomizing nozzle, in particular to an integrated nozzle which has the functions of flow control, multi-stage decompression and medium atomization. The invention presents a similar device produced by using the invention to realize the aim and characteristics of the invention. A multistage decompression and micro flow atomizing nozzle of the invention aims at saving costs and solving the problem that the nozzle head is easy to be scoured under high-pressure working conditions.