Atomizing nozzle and atomizing device

Abstract

The utility model relates to the technical field of atomizing nozzles, in particular to an atomizing nozzle and an atomizing device. The spray head is provided with an atomizing cavity, and the atomizing cavity is communicated with a nozzle on the spray head through a corresponding cavity channel; the first auxiliary body is provided with an air cavity A, and the air cavity A is connected with a pressure air source; an outer pipe barrel is arranged between the spray head and the first auxiliary body, one end of the outer pipe barrel is inserted into the atomization cavity to be fixed, and the other end of the outer pipe barrel extends into the air cavity A; an inner pipe barrel is arranged in the outer pipe barrel, an annular cavity is formed between the inner pipe barrel and the outer pipe barrel, one end of the inner pipe barrel extends into the atomization cavity, and the other end penetrates through the first auxiliary body and then is connected with a pressure coating source; the outer pipe barrel can be rotatably installed on the first auxiliary body, and a rotation driving mechanism is arranged between the outer pipe barrel / the spray head and the first auxiliary body. The rotary spraying device has the advantages that atomization spraying and rotary spraying can be carried out, stress is uniform during spraying, shaking is avoided in the radial direction during spraying, and the spraying effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizing spraying equipment, in particular to an atomizing nozzle and an atomizing device. Background Art

[0002] In the petroleum field, it is necessary to spray anti-corrosion materials on the inner wall of petroleum pipelines. In order to ensure the uniformity of spraying, a rotating nozzle (i.e., a nozzle and a structure for driving the nozzle to rotate) is usually required.

[0003] However, at present, when spraying anti-corrosion materials on small-sized petroleum pipelines, the spraying effect is not good enough. Specifically, a driving mechanism drives the nozzle to rotate, and the paint in the nozzle is ejected from the nozzle under the action of pressure and is thrown onto the inner wall of the petroleum pipeline under the centrifugal action of the rotating nozzle. The spraying completely depends on the pipeline pressure connected to the nozzle. For example, the patent with the publication number CN202778800U.

[0004] Considering that atomizing the paint with gas before spraying can improve the spraying uniformity, the company has developed an application of an atomizing nozzle in the anti-corrosion spraying of the inner wall of petroleum pipelines. The difficulty lies in that the orientation of the atomizing nozzle is usually fixed and difficult to rotate (because it will cause the paint pipeline and the gas pipeline to be entangled), and the spraying uniformity of small-sized petroleum pipelines depends on rotation.

[0005] Therefore, by combining the functions of a general rotating nozzle and an atomizing nozzle, an atomizing nozzle and an atomizing device are designed. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, provide an atomizing nozzle and an atomizing device, and solve the problem of poor spraying effect of existing spraying equipment for small-sized petroleum pipelines.

[0007] The purpose of the utility model is realized by the following technical solutions:

[0008] In the first aspect, an atomizing nozzle and an atomizing device are provided, including a first auxiliary body, a nozzle, and an outer tube.

[0009] The first auxiliary body has an air chamber A, and the air chamber A is connected to a pressure air source.

[0010] The nozzle has an atomizing chamber, and the atomizing chamber is communicated with the nozzle on the nozzle through a corresponding chamber.

[0011] One end of the outer tube is hermetically fixed at the atomizing chamber, and the other end of the outer tube is rotatably inserted into the air chamber A; a rotation driving mechanism for driving the two to rotate is arranged between the outer tube and the first auxiliary body.

[0012] An inner tube is arranged inside the outer tube, and an annular cavity is formed between the two. One end of the inner tube extends into the atomization cavity, and the other end of the inner tube passes through the air cavity A and finally penetrates the first auxiliary body and is connected to the pressure coating source;

[0013] The pressurized gas can enter the atomization cavity through the annular cavity, and the pressure coating can enter the atomization cavity through the inner tube. When the pressurized gas acts on the pressure coating in the atomization cavity, the pressure coating can be in an atomized state to form a mixture of coating and air, and the mixture can be ejected from the nozzle through the corresponding channels.

[0014] As a preferred technical solution of the present application, a blade rotating member is arranged at the end of the inner tube at the atomization cavity, and air holes are formed on the barrel wall at the end of the inner tube of the atomization cavity;

[0015] The pressurized gas in the annular cavity is ejected through the air holes and acts on the blade rotating member to make the blade rotating member rotate. When the blade rotating member rotates, the pressure coating is beaten and scattered, so that a good atomization effect is formed between the pressurized gas and the scattered coating.

[0016] Furthermore, the blade rotating member includes a central rod; one end of the central rod has a disc and the other end has a spherical head. The spherical head abuts against the bottom wall of the atomization cavity, and the disc extends into the inner tube; a plurality of material holes are formed on the disc. A plurality of blade A are arranged on the cylindrical surface of the central rod, and a stirring rod is arranged on the central rod. When the pressurized gas is ejected from the air holes, it acts on the blade A and the central rod rotates. The pressure coating is extruded from the material holes and is beaten and scattered by the blade A and the stirring rod.

[0017] As a preferred technical solution of the present application, a plurality of nozzles are circumferentially arranged on the nozzle head, and each nozzle is communicated with the atomization cavity through a corresponding channel.

[0018] As a preferred technical solution of the present application, the first auxiliary body further has an air cavity B, and both ends of the air cavity B are respectively connected with a guiding tube and communicated with another pressure air source. A plurality of blade B are arranged on the outer cylindrical surface of the outer tube, and the air outlet of the guiding tube is aligned with the blade B; when the pressurized gas in the air cavity B is ejected, it acts on the blade B, so that the outer tube rotates, forming a rotation driving mechanism.

[0019] In a second aspect, an atomization device is also disclosed, including the above atomization nozzle, which extends into the oil pipeline, and further includes a second auxiliary body;

[0020] Both ends of the outer tube are sleeved with a first auxiliary body and a second auxiliary body respectively, and the outer tube passes through the second auxiliary body and the two can be rotatably arranged; corresponding rollers are arranged circumferentially on the second auxiliary body and the first auxiliary body. When the atomizing device extends into the oil pipeline, the nozzle and the outer tube are supported in the oil pipeline through the first auxiliary body and the second auxiliary body by the rollers, and the rollers roll along the axis after contacting the inner wall of the oil pipeline.

[0021] As a preferred technical solution of the present application, the rollers are installed on auxiliary plates. The auxiliary plates have various thickness dimensions, and the auxiliary plates are fixed to the corresponding first auxiliary body and second auxiliary body by screws.

[0022] As a preferred technical solution of the present application, one end of the guiding tube extends deep into the air chamber B of the first auxiliary body, and the other end is installed on the second auxiliary body. An air outlet is opened on the side wall of the guiding tube to form a structure for firmly setting the guiding tube.

[0023] For the convenience of understanding, the working process of this solution is described as follows:

[0024] Working process: (1) The gas with pressure first enters the cylinder A, then enters the annular cavity, and finally is sprayed onto the blade rotating part through the air holes - this pressure gas can make the blade rotating part rotate, and this pressure gas enters the blade A and the stirring rod of the blade rotation; (2) The paint with pressure passes through the inner tube and is then extruded from the material holes on the disc of the blade rotating part, and then this pressure paint enters the blade A and the stirring rod of the blade rotating part; (3) At the blade A and the stirring rod, the pressure gas and the pressure paint are mixed with each other, and both are scattered under the action of the stirring rod - thus realizing the full mixing and atomization of the pressure gas and the pressure paint (forming an atomized mixture); (4) The atomized mixture is sprayed outwards from the nozzle of the nozzle. In addition, the pressure gas in the air chamber B can act on the blade A of the outer tube when spraying - thus the outer tube rotates, and when the outer tube rotates, it can drive the nozzle to rotate, so as to realize the rotating nozzle in the oil pipeline. During the nozzle process, the entire atomizing device moves uniformly along the axial direction of the oil pipeline (the axial uniform movement can be realized by pulling the air hose A connected to the air chamber A, or the air hose B connected to the air chamber B, or the paint hose C connected to the outer tube), and then the nozzle of the entire oil pipeline is realized.

[0025] The utility model has the following advantages:

[0026] (1) It can not only perform atomizing spraying but also perform rotary spraying, improving the spraying effect (and it can also prevent the air hose A connected to the air chamber A from being entangled with the paint hose C connected to the inner tube).

[0027] In this solution, since the inner tube is arranged inside the outer tube (and an annular cavity is formed between the two), one end of the outer tube is connected to the air cavity A and the other end extends into the atomization cavity, and one end of the inner tube penetrates through the air cavity A (sealed at the penetration point) and the other end extends into the atomization cavity, the pressurized gas enters the atomization cavity through the annular cavity, and the pressurized paint enters the atomization cavity through the inner tube. Therefore, when the outer tube rotates, the air hose A connected to the air cavity A and the paint hose C connected to the inner tube will not get entangled; thus, both atomized spraying and rotary spraying can be achieved. When it is used for spraying the inner wall of a relatively small oil pipeline, the uniformity of the paint spraying on the inner wall of the oil pipeline can be effectively improved - the spraying effect is enhanced.

[0028] (2) During spraying, the force is evenly distributed, and the nozzle is not prone to shaking, improving the spraying effect.

[0029] In this solution: a. During atomization, since the pressure air holes spray into the inner tube from the circumferential air holes - a force balance is formed in the radial direction of the inner tube. Therefore, when the gas sprays into the inner tube from the air holes, it will not cause the entire atomization device to shake in the radial direction of the inner tube (shaking will affect the spraying effect); b. A plurality of corresponding nozzles are circumferentially arranged on the nozzle head. When the atomized mixture sprays out from the nozzles, it will not generate shaking in the radial direction of the inner tube (shaking will affect the spraying effect). Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of the atomizing nozzle;

[0031] Figure 2 is a schematic structural diagram of the nozzle head;

[0032] Figure 3 is a schematic structural diagram of the blade rotating part;

[0033] Figure 4 is a three-dimensional schematic diagram of the blade rotating part;

[0034] Figure 5 is a schematic structural diagram of the inner tube arranged inside the outer tube;

[0035] Figure 6 is a schematic structural diagram of the first auxiliary body;

[0036] Figure 7 is a schematic structural diagram of the atomization device;

[0037] Figure 8 is a schematic structural diagram of the second auxiliary body;

[0038] Figure 9 is a schematic structural diagram of the atomization device placed inside the oil pipeline;

[0039] In the figure: 10 - nozzle, 11 - atomization chamber, 12 - nozzle, 20 - first auxiliary body, 21 - air chamber A, 22 - guiding tube, 23 - air chamber B, 30 - outer tube, 31 - annular chamber, 32 - blade B, 40 - inner tube, 41 - blade rotating member, 4101 - central rod, 4102 - disc, 4102-1 - material hole, 4103 - ball head, 4104 - blade A, 4105 - stirring rod, 42 - air hole, 50 - second auxiliary body, 60 - roller. Detailed implementation manner

[0040] The following further describes the present utility model with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0041] It should be noted that the orientation or positional relationship indicated by "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0042] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0043] As Figures 1-9 shown, an atomizing nozzle includes a first auxiliary body 20, a nozzle 10, and an outer tube 30;

[0044] An air chamber A 21 is provided on the first auxiliary body 20, and a mounting hole is opened on the first auxiliary body 20, and the mounting hole communicates with the air chamber A 21. One end of the outer tube 30 is sleeved with a sealing ring and a bearing and then installed in the mounting hole (so that the outer tube 30 is sealed and rotatably installed at the air chamber A 21);

[0045] A nozzle 10 is installed at the other end of the outer tube 30; a plurality of nozzles 12 are circumferentially provided on the nozzle 10, and an atomization chamber 11 is also provided on the nozzle 10. The plurality of nozzles 12 communicate with the atomization chamber 11 through corresponding channels, and the outer tube 30 is hermetically inserted and fixed at the atomization chamber 11;

[0046] An inner tube 40 is provided inside the outer tube 30 (an annular chamber 31 is formed between the two), one end of the inner tube 40 extends into the atomization chamber 11, and the other end of the inner tube 40 passes through the end of the outer tube 30, then passes through the air chamber A 21, and finally penetrates through the second auxiliary body 50 (a corresponding through hole is opened on the second auxiliary body 50, and the end of the inner tube 40 is sleeved with a bearing and a corresponding sealing ring and then arranged at the through hole);

[0047] In addition, the air cavity A21 is connected to a pressure air source, and the end of the inner tube 40 extending out of the second auxiliary body 50 is connected to a pressure coating source;

[0048] In addition, a rotary drive mechanism is provided between the outer tube 30 / nozzle 10 and the first auxiliary body 20.

[0049] During operation: (1) Insert the entire atomizing nozzle into the corresponding pipeline to be sprayed; (2) The pressurized gas in the pressure air source is introduced into the air cavity A21, and then enters the atomizing cavity 11 through the annular cavity 31. The pressure coating source sends the pressurized liquid coating into the atomizing cavity 11 through the inner tube 40. The pressurized gas and the pressurized coating are mixed and atomized at the atomizing cavity 11. The atomized mixture (pressurized coating, pressurized gas mixture) is ejected from the nozzle 12 through the cavity channel to achieve atomized spraying; (3) In addition, under the action of the rotary drive mechanism, the nozzle 12 can rotate relative to the first auxiliary body 20, so that the inner wall of the pipeline to be sprayed is sprayed.

[0050] The atomizing cavity 11 will be further described below.

[0051] As Figure 1 and Figure 5 shown, at the atomizing cavity 11 and inside the end of the inner tube 40, a vane rotating member 41 is provided;

[0052] In addition, air holes 42 are opened on the barrel wall at the end of the inner tube 40 of the atomizing cavity 11. The end of the outer tube 30 at the atomizing cavity has an inward flange, and the inward flange does not contact the outer cylindrical surface of the inner tube 40 (the inward flange forms a certain degree of truncation of the annular cavity 31, facilitating more pressurized gas to enter the inner tube 40 through the air holes 42);

[0053] During operation, when the pressurized gas enters the atomizing cavity 11 through the annular cavity 31: the pressurized gas in the annular cavity 31 is ejected onto the vane rotating member 41 through the air holes 42 - causing the vane rotating member 41 to rotate. Under the rotation of the vane rotating member 41, the liquid coating and the pressurized gas here can be dispersed, so that the liquid coating forms good atomization.

[0054] Furthermore, optionally, there can be various types of vane rotating members 41.

[0055] For example, the blade rotating member 41 includes a central rod 4101; specifically, one end of the central rod 4101 has a disk 4102 and the other end has a ball head 4103. The ball head 4103 abuts against the bottom wall of the atomization chamber 11, and the disk 4102 extends into the inner tube 40; a plurality of material holes 4102-1 are formed in the disk 4102; in addition, a plurality of blades A4104 are arranged on the cylindrical surface of the central rod 4101, and a stirring rod 4105 is arranged on the central rod 4101. During operation, when the pressurized gas is ejected from the air hole 42, it acts on the blade A4104 and the central rod 4101 rotates. After the pressurized coating material is extruded from the material hole 4102-1, it is beaten and dispersed by the blade A4104 and the stirring rod 4105.

[0056] The rotation driving mechanism will be further described below.

[0057] An air chamber B23 is also formed in the first auxiliary body 20. Two ends of the air chamber B23 are respectively connected to a guiding pipe 22 and communicated with another pressure air source; in addition, a plurality of blades B32 are arranged on the outer cylindrical surface of the outer tube 30, and the air outlet of the guiding pipe 22 is aligned with the blade B32. During operation, when the pressurized gas in the air chamber B23 is ejected, it acts on the blade B32, so that the outer tube 30 rotates, forming a rotation driving mechanism.

[0058] In a second aspect, the present embodiment also discloses an atomization device, which includes the atomization nozzle of the first aspect and further includes a second auxiliary body 50. The atomization device extends into the petroleum pipeline;

[0059] Specifically, the second auxiliary body 50 is sleeved in the middle of the outer tube 30, and a bearing is arranged between the two;

[0060] In addition, corresponding rollers 60 are arranged circumferentially on the second auxiliary body 50 and the first auxiliary body 20;

[0061] During operation, when the atomization device extends into the petroleum pipeline, the nozzle 10 and the outer tube 30 are supported in the petroleum pipeline through the first auxiliary body and the second auxiliary body 50 by the rollers 60. After the rollers 60 contact the inner wall of the petroleum pipeline, they roll along its axis, so as to spray the entire pipe wall in the petroleum pipeline.

[0062] In this embodiment, a dedicated driving mechanism can be arranged on the second auxiliary body 50, and the driving mechanism is drivingly connected to the corresponding roller 60. Preferably, the air chamber A21 is connected to the pressure source through a pipeline, and the inner tube 40 is connected to the pressure coating source through a corresponding pipeline. Dragging the corresponding pipeline can make the roller 60 roll circumferentially along the inner wall of the petroleum pipeline.

[0063] In this embodiment, the installation structure of the roller 60 will be further described.

[0064] The roller 60 is installed on the auxiliary plate. The auxiliary plate has various thickness dimensions and is fixed to the corresponding first auxiliary body 20 and second auxiliary body 50 by screws. When the oil pipeline has different diameters, an auxiliary plate with a corresponding thickness is selected so that the roller 60 can always contact the inner wall of the oil pipeline.

[0065] In this embodiment, for the installation structure of the guiding pipe 22, the following method is adopted.

[0066] One end of the guiding pipe 22 is inserted into the air cavity B23 of the first auxiliary body 20, and the other end is installed on the second auxiliary body 50. An air outlet is formed on the side wall of the guiding pipe 22, and the air outlet is aligned with the blade B32.

[0067] The above embodiments only represent relatively preferred implementation manners, and the description is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. An atomizing nozzle, characterized in that: It includes a first auxiliary body (20), a spray head (10), and an outer tube (30); The first auxiliary body (20) has an air chamber A (21), and the air chamber A (21) is connected to a pressure gas source; The spray head (10) has an atomization chamber (11), and the atomization chamber (11) is communicated with a nozzle (12) on the spray head (10) through a corresponding channel; One end of the outer tube (30) is fixedly sealed at the atomization chamber (11), and the other end of the outer tube (30) is rotatably inserted into the air chamber A (21); A rotary drive mechanism for driving the two to rotate is provided between the outer tube (30) and the first auxiliary body (20); An inner tube (40) is arranged in the outer tube (30) and an annular chamber (31) is formed therebetween. One end of the inner tube (40) extends into the atomization chamber (11), and the other end of the inner tube (40) passes through the air chamber A (21) and finally penetrates the first auxiliary body (20) and is connected to a pressure coating source.

2. The atomizing nozzle according to claim 1, characterized in that: At the atomization chamber (11), a blade rotating member (41) is arranged at the end of the inner tube (40), and air holes (42) are formed on the wall of the end of the inner tube (40) in the atomization chamber (11); The pressure gas in the annular chamber (31) is ejected through the air holes (42) and acts on the blade rotating member (41) to rotate the blade rotating member (41). When the blade rotating member (41) rotates, the pressure coating is struck and dispersed, so that a good atomization effect is formed between the pressure gas and the dispersed coating.

3. The atomizing nozzle according to claim 2, wherein: The blade rotating member (41) includes a central rod (4101); One end of the central rod (4101) has a disc (4102) and the other end has a ball head (4103). The ball head (4103) abuts against the bottom wall of the atomization chamber (11), and the disc (4102) extends into the inner tube (40); A plurality of material holes (4102-1) are formed in the disc (4102); A plurality of blade A (4104) are arranged on the columnar surface of the central rod (4101), and a stirring rod (4105) is arranged on the central rod (4101); When the pressure gas is ejected from the air holes (42), it acts on the blade A (4104) to rotate the central rod (4101). The pressure coating is extruded from the material holes (4102-1) and is struck and dispersed by the blade A (4104) and the stirring rod (4105).

4. A kind of atomizing nozzle according to any one of claims 1 to 3, characterized in that: A plurality of nozzles (12) are circumferentially arranged on the spray head (10), and each nozzle (12) is communicated with the atomization chamber (11) through a corresponding channel.

5. A kind of atomizing nozzle according to any one of claims 1 to 3, characterized in that: The first auxiliary body (20) also has an air chamber B (23), and both ends of the air chamber B (23) are respectively connected to a guiding tube (22) and communicated with another pressure gas source; A plurality of blade B (32) are arranged on the outer cylindrical surface of the outer tube (30), and the air outlet of the guiding tube (22) is aligned with the blade B (32); When the pressure gas in the air chamber B (23) is ejected, it acts on the blade B (32) to rotate the outer tube (30), forming a rotary drive mechanism.

6. An atomizing device, comprising the atomizing nozzle according to any one of claims 1 to 5, characterized in that: It extends into an oil pipeline and also includes a second auxiliary body (50); Both ends of the outer tube (30) are sleeved with a first auxiliary body (20) and a second auxiliary body (50) respectively, and the outer tube (30) passes through the second auxiliary body (50) and the two can be rotatably arranged; corresponding rollers (60) are arranged circumferentially on the second auxiliary body (50) and the first auxiliary body (20); when the atomization device extends into the oil pipeline, the nozzle (10) and the outer tube (30) can be supported in the oil pipeline through the rollers (60) via the first auxiliary body (20) and the second auxiliary body (50), and after the rollers contact the inner wall of the oil pipeline, they can roll along its axis.

7. The atomizing device according to claim 6, characterized in that: The roller (60) is installed on an auxiliary plate. The auxiliary plate has various thickness dimensions, and the auxiliary plate is fixed to the corresponding first auxiliary body (20) and second auxiliary body (50) by screws.

8. The atomizing device according to claim 6, characterized in that: One end of the guiding tube (22) extends deep into the air cavity B (23) of the first auxiliary body (20), and the other end is installed on the second auxiliary body (50). An air outlet is formed on the side wall of the guiding tube (22), forming a structure in which the guiding tube is firmly arranged.

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