A cross-type atomization chamber and preparation method thereof

Abstract

The present invention relates to a cross-type atomization chamber and a preparation method thereof, which belongs to the technical field of atomizers, and solves the problem that the existing atomizers have low atomization efficiency, small carrier gas flow rate adjustment range, and cannot be applied to spectral analysis and mass spectrometry analysis at the same time. A cross-type atomization chamber includes a spray chamber and an atomizer, wherein the top of the spray chamber is provided with an aerosol outlet, the bottom is provided with a liquid discharge port, and the side wall of the spray chamber is provided with an atomizer mounting port; the atomizer includes an atomization pipe, a liquid inlet pipe and an air inlet pipe, one end of the atomization pipe is closed, and the other end is integrally formed with the atomizer mounting port; the liquid inlet pipe and the air inlet pipe are arranged on the atomization pipe, the liquid outlet of the liquid inlet pipe and the air jet of the air inlet pipe are both located in the atomization pipe, and the center line of the liquid inlet pipe is perpendicular to the center line of the air inlet pipe. The present invention has high atomization efficiency, is not easy to be blocked, has good stability, and has a large carrier gas flow rate adjustment range, and can be applied to spectral analysis and mass spectrometry analysis at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of atomizers, and in particular to a cross-type atomization chamber and a preparation method thereof. Background Art

[0002] At present, contemporary advanced element detection and analysis instruments such as inductively coupled plasma atomic emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS) are widely used in various industries. The pneumatic nebulizer is an important key component of such precision instruments and equipment. Its main function is to use the high-speed airflow in the gas branch of the nebulizer to atomize the sample solution in the liquid branch into fine aerosols for introduction into analytical instruments such as ICP-OES or ICP-MS for elemental composition determination.

[0003] Among the various types of pneumatic atomizers, such as Figure 1 The concentric nebulizer shown is the most widely used. However, most concentric nebulizers are imported and expensive. In addition, the liquid inlet pipe of this type of nebulizer is thin, and the inner diameter of the liquid inlet pipe is only 0.1mm to 0.2mm. It is easy to be blocked by salt, resulting in blockage of the liquid inlet pipe, which is difficult to clean. In addition, the adjustable range of the carrier gas flow of the concentric nebulizer is small, and it can only be used for mass spectrometry testing, not spectral testing. In addition, the concentric nebulizer and the spray chamber are split structures. When using, the concentric nebulizer needs to be connected to the spray chamber, which is complicated to operate, and the residual sample element memory interference affects the accuracy of the test results.

[0004] Therefore, there is an urgent need to provide a nebulizer with a simple structure, high atomization efficiency, good stability, good test result accuracy, and capable of being used for both mass spectrometry and spectrum testing. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide a cross-type atomization chamber and a preparation method thereof, so as to solve the problems that the existing atomizer has low atomization efficiency, a small air inlet pressure adjustment range, and cannot be applied to spectral analysis and mass spectrometry analysis at the same time.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] On the one hand, a cross-type atomization chamber is provided, comprising a spray chamber and an atomizer, wherein an aerosol outlet is provided at the top of the spray chamber, a liquid discharge outlet is provided at the bottom, and an atomizer mounting port is provided on the side wall of the spray chamber; the atomizer comprises an atomization tube, a liquid inlet tube and an air inlet tube, one end of the atomization tube is closed, and the other end is integrally formed with the atomizer mounting port; the liquid inlet tube and the air inlet tube are arranged on the atomization tube, the liquid outlet of the liquid inlet tube and the air jet outlet of the air inlet tube are both located in the atomization tube, and the center line of the liquid inlet tube is perpendicular to the center line of the air inlet tube.

[0008] Furthermore, a liquid inlet pipe mounting opening and an air inlet pipe mounting opening are provided on the atomizing pipe; and the outer wall of the liquid inlet pipe and the outer wall of the air inlet pipe are respectively sealed and welded to the liquid inlet pipe mounting opening and the air inlet pipe mounting opening.

[0009] Furthermore, a gap is set between the liquid outlet and the air jet.

[0010] Furthermore, the air jet is arranged as an arc-shaped recessed structure, and the lowest point of the arc-shaped recessed structure is located on the center line of the air intake pipe.

[0011] Furthermore, the liquid inlet pipe includes a liquid inlet connecting section and a liquid spraying section, the inner diameter of the liquid inlet connecting section is larger than the inner diameter of the liquid spraying section, and the liquid inlet connecting section is connected to the liquid spraying section with a diameter change transition.

[0012] Furthermore, the liquid spray section is located in the atomization tube, and the liquid inlet connection section is connected to the sample bottle through a pipeline.

[0013] Furthermore, the diameter of the installation opening of the liquid inlet pipe is larger than the outer diameter of the liquid spraying section, and smaller than the outer diameter of the liquid inlet connecting section.

[0014] Furthermore, the air intake pipe includes an injection front section, an injection middle section and an injection rear section which are connected by a variable diameter transition, and the inner diameter of the injection middle section is larger than the inner diameters of the injection front section and the injection rear section.

[0015] Furthermore, the jet front section is located in the atomizing pipe, and the jet rear section is connected to the air supply device.

[0016] Furthermore, the diameter of the air intake pipe installation opening is larger than the outer diameter of the jet front section and smaller than the outer diameter of the jet middle section.

[0017] Furthermore, the inner diameter R1 of the liquid spraying section is 0.2-0.4 mm, and the inner diameter R2 of the front section of the jetting section is 0.2-0.4 mm.

[0018] Furthermore, the mist chamber is also provided with a liquid discharge pipe and an aerosol outlet pipe; the liquid discharge pipe is connected to the liquid discharge port to guide the waste liquid to flow out; the aerosol outlet pipe is used to outlet the aerosol.

[0019] Furthermore, the aerosol outlet pipe extends into the mist chamber through the aerosol outlet, and the aerosol outlet pipe is sealed and connected to the aerosol outlet.

[0020] Furthermore, one end of the aerosol outlet tube extending into the mist chamber is beveled, and the other end is connected with a ball bowl.

[0021] Furthermore, the mist chamber, the liquid inlet pipe, the air inlet pipe, the atomization pipe, the aerosol outlet pipe, the liquid discharge pipe and the ball bowl are all made of quartz material.

[0022] On the other hand, a method for preparing a cross-type atomization chamber is provided, comprising the following steps:

[0023] Step 1: Prepare the liquid inlet pipe, air inlet pipe and atomization pipe;

[0024] Step 2: Install the liquid inlet pipe, air inlet pipe, atomizing pipe and spray chamber in the sintering mold so that the center line of the liquid inlet pipe and the center line of the air inlet pipe are perpendicular;

[0025] Step 3: high-temperature sintering is performed on the sintering mold equipped with the spray chamber, liquid inlet pipe, air inlet pipe and atomizing pipe as a whole, so that the liquid inlet pipe and the air inlet pipe are fixedly connected to the atomizing pipe, and the preparation of the cross-type atomizing chamber is completed.

[0026] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0027] a) The cross-type atomization chamber provided by the present invention sets the liquid inlet pipe and the air inlet pipe into a cross-type structure, and sets the liquid inlet pipe, the air inlet pipe and the atomization chamber into an integrated structure, which can reduce the memory interference of residual sample elements and improve the accuracy of the test results; the inner diameter of the liquid inlet pipe (0.2-0.4 mm) is significantly larger than the inner diameter of the liquid inlet pipe of the traditional concentric atomizer (0.1 mm-0.2 mm), which can avoid the blockage of the liquid inlet pipe, and the carrier gas flow rate adjustment range is large, the working stability is good, and the same atomization chamber can be used for spectral analysis and mass spectrometry analysis at the same time.

[0028] b) In the cross-type atomization chamber provided by the present invention, the air jet outlet of the air inlet pipe is an arc-shaped concave structure, which can avoid the generation of liquid accumulation and significantly improve the atomization efficiency.

[0029] c) The cross-type atomization chamber provided by the present invention is made of quartz material. Quartz has a low expansion coefficient, stable material properties, and high purity. It can remove carbon deposits in the liquid inlet pipe by high-temperature combustion. It is easy to operate and has a good cleaning effect. It greatly shortens the conventional cleaning time and greatly improves the test efficiency. It can also completely avoid interference with the test results due to incomplete cleaning, thereby improving the accuracy of the test results.

[0030] d) The preparation method of the cross-type atomization chamber provided by the present invention is simple to operate, precise in processing, high in qualified rate, and convenient for large-scale production.

[0031] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0033] Figure 1 It is a structural schematic diagram of a concentric atomizer in the prior art;

[0034] Figure 2 Schematic diagram of the structure of a cross-type atomizer in an embodiment of the present invention;

[0035] Figure 3 for Figure 2 Schematic diagram of the position relationship between the liquid inlet pipe and the air inlet pipe;

[0036] Figure 4 Schematic diagram of the structure of the air intake pipe in an embodiment of the present invention;

[0037] Figure 5 Schematic diagram of the structure of the liquid inlet pipe in an embodiment of the present invention.

[0038] Reference numerals:

[0039] 1-mist chamber; 2-liquid inlet pipe; 21-liquid inlet connecting section; 22-liquid spray section; 3-air inlet pipe; 31-jet front section; 32-jet middle section; 33-jet rear section; 34-arc-shaped concave structure; 4-ball bowl; 5-liquid discharge pipe; 6-atomization pipe. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0041] Example 1

[0042] A specific embodiment of the present invention discloses a cross-type atomization chamber, such as Figures 2 to 3 As shown, it includes a spray chamber 1 and an atomizer. The top of the spray chamber 1 is provided with an aerosol outlet, the bottom is provided with a liquid discharge port, and the side wall of the spray chamber 1 is provided with an atomizer mounting port; the atomizer includes an atomizer tube 6, a liquid inlet tube 2 and an air inlet tube 3, one end of the atomizer tube 6 is closed, and the other end is integrally formed with the atomizer mounting port; the liquid inlet tube 2 and the air inlet tube 3 are arranged on the atomizer tube 6, specifically, the atomizer tube 6 is provided with a liquid inlet tube mounting port and an air inlet tube mounting port, and the outer wall of the liquid inlet tube 2 and the air inlet tube 3 are The outer wall of is respectively welded or integrally formed with the liquid inlet pipe mounting port and the air inlet pipe mounting port; the center line of the liquid inlet pipe 2 is perpendicular to the center line of the air inlet pipe 3, the liquid outlet of the liquid inlet pipe 2 and the jet outlet of the air inlet pipe 3 are both located in the atomization pipe 6, and a gap is set between the liquid outlet and the jet outlet, that is, the liquid outlet of the liquid inlet pipe 2 is not in contact with the jet outlet of the air inlet pipe 3. This structural setting can prevent the droplets from gathering into large droplets at the jet outlet, causing incomplete atomization and inaccurate analysis results.

[0043] In this embodiment, Figure 5As shown, the liquid inlet pipe 2 includes a liquid inlet connection section 21 and a liquid spray section 22. The liquid inlet connection section 21 and the liquid spray section 22 are connected with each other by a change-diameter transition. The inner diameter of the liquid inlet connection section 21 is larger than the inner diameter of the liquid spray section 22. The liquid spray section 22 is located in the atomizing pipe 6. The liquid inlet connection section 21 is connected to the sample bottle through a pipeline. A peristaltic pump is arranged on the pipeline. The peristaltic pump can supply the sample to be tested in the sample bottle into the liquid inlet pipe 2 and spray it out from the liquid spray port at the front end of the liquid spray section 22. The diameter of the liquid inlet pipe installation port on the atomizing pipe 6 is larger than the outer diameter of the liquid spray section 22 and smaller than the outer diameter of the liquid inlet connection section 21.

[0044] In this embodiment, Figure 4 As shown, the air inlet pipe 3 includes an air jet front section 31, an air jet middle section 32 and an air jet rear section 33. The inner diameter of the air jet middle section 32 is larger than the inner diameters of the pipes of the air jet front section 31 and the air jet rear section 33. The air jet front section 31 and the air jet middle section 32, as well as the air jet middle section 32 and the air jet rear section 33 are all connected by a variable diameter transition. The air jet front section 31 is located in the atomizing pipe 6, and the air jet rear section 33 is connected to the gas inlet of the mass spectrometer carrier gas. The gas supply device supplies rare gas (high-purity Ar gas) to the air inlet pipe 3, and the gas is ejected from the air jet port at the front end of the air jet front section 31. Among them, the diameter of the air inlet pipe installation port on the atomizing pipe 6 is larger than the outer diameter of the air jet front section 31 and smaller than the outer diameter of the air jet middle section 32.

[0045] Since the atomizer is a precision component, in order to achieve the atomization function, strict requirements are imposed on the inner diameters of the liquid inlet pipe 2 and the air inlet pipe 3, the liquid spray port of the liquid inlet pipe 2, and the positional relationship of the air spray port of the air inlet pipe 3. In this embodiment, the inner diameter of the liquid inlet connection section 21 is 3 mm to 5 mm, the inner diameter R1 of the liquid spray section 22 is 0.2 to 0.4 mm, the inner diameter of the air spray middle section 32 is 3 mm to 5 mm, and the inner diameter R2 of the air spray front section 31 is 0.2 to 0.4 mm. The inner diameter of the air spray middle section 32 is much larger than the inner diameter of the air spray front section 31, and the gas in the cavity forms a negative pressure cavity, which improves the siphon rate and thus improves the atomization efficiency. The center line of the liquid spray section 22 is perpendicular to the center line of the jet front section 31, the liquid inlet pipe 2 is located on one side of the center line of the air inlet pipe, the position of the liquid spray port of the liquid inlet pipe 2 does not exceed the center line of the air inlet pipe, and the vertical distance L1 from the center point of the liquid spray port of the liquid inlet pipe 2 to the center line of the air inlet pipe is 0 to 0.2 mm. Preferably, the center point of the liquid spray port of the liquid inlet pipe 2 is located on the center line of the air inlet pipe, and the distance L2 from the center point of the liquid spray port to the plane where the jet port of the jet front section 31 is located is greater than the wall thickness d of the liquid spray section 22, L2 = d + (0.2 mm to 0.5 mm).

[0046] If the inner diameter of the liquid inlet pipe of the conventional concentric atomizer exceeds 0.2 mm, the atomization efficiency is very low or even the atomization function cannot be realized. Therefore, the inner diameter of the liquid inlet pipe of the conventional concentric atomizer is very thin, only 0.1-0.2 mm. Such a thin liquid inlet pipe is prone to salt blockage, resulting in blockage of the liquid inlet pipe and great difficulty in cleaning. The inner diameter of the liquid inlet pipe 2 of the atomizer of the present embodiment is 0.2-0.4 mm, which can reach 2-4 times of the inner diameter of the liquid inlet pipe of the conventional atomizer. Since the liquid spraying direction of the liquid inlet pipe 2 is perpendicular to the jetting direction of the air inlet pipe 3, not only can the atomization of the sample be realized, the atomization efficiency is higher than that of the conventional concentric atomizer, but also the blockage of the liquid inlet pipe can be avoided. Moreover, since the inner diameter of the liquid inlet pipe 2 is large, the carrier gas flow rate and the carrier gas pressure adjustment range are large, and the same atomization chamber can be applied to spectral analysis and mass spectrometry, which greatly reduces the cost of consumables.

[0047] In this embodiment, the shape of the mist chamber 1 is a spherical structure or a regular polygonal three-dimensional structure. The mist chamber 1 is also provided with a liquid discharge pipe 5 and an aerosol outlet pipe. The liquid discharge pipe 5 is connected to the liquid discharge port to guide the waste liquid to flow out. The aerosol outlet pipe is used to export the aerosol. The aerosol outlet pipe is an oblique pipe. The aerosol outlet pipe extends into the mist chamber 1 through the aerosol outlet. The aerosol outlet pipe is sealed and connected to the aerosol outlet. One end of the aerosol outlet pipe extending into the mist chamber 1 is obliquely cut, and the other end is connected to a ball bowl 4. The generated aerosol enters the mass spectrometer or the optical spectrum analyzer through the ball bowl 4. By providing the oblique aerosol outlet pipe, the inlet area of ​​the aerosol entering the aerosol outlet pipe is increased, which is convenient for the export of the atomized aerosol.

[0048] In order to improve the atomization efficiency and avoid the generation of liquid accumulation, the jet outlet of the air inlet pipe 3 is set to a circular arc-shaped concave structure 34, and the jet front section 31 is a funnel-shaped structure, such as Figure 4 As shown, the jet port at the front end of the jet front section 31 is an arc-shaped recessed structure 34, the lowest point of the arc-shaped recessed structure 34 is located on the center line of the intake pipe 3, and the rare gas in the intake pipe 3 is ejected along the inner wall surface of the arc-shaped recessed structure 34. The setting of the arc-shaped recessed structure not only increases the gas ejection area of ​​the jet port and the gas-liquid contact area during atomization, but also the liquid ejected from the liquid inlet pipe 2 will not be adsorbed on the inner wall of the jet port due to tension, thereby avoiding the generation of liquid accumulation and significantly improving the atomization efficiency.

[0049] Since carbon deposits will be generated in the liquid inlet pipe 2 during the test, the traditional chemical reagent cleaning method takes a long time to clean and has low cleaning efficiency. In this embodiment, the spray chamber 1, the liquid inlet pipe 2, the air inlet pipe 3, the atomizing pipe 6, the aerosol outlet pipe, the liquid discharge pipe 5 and the ball bowl 4 are all made of quartz material. Since quartz has a low expansion coefficient, stable material properties and high purity, the carbon deposits in the liquid inlet pipe 2 can be removed by high-temperature combustion, which greatly shortens the cleaning time and improves the cleaning efficiency.

[0050] During implementation, the atomization chamber is connected to the sample bottle and the gas supply equipment, the peristaltic pump and the gas supply equipment are started, the liquid supply pressure and the gas supply pressure are adjusted, the sample solution is sprayed into the atomization tube 6 through the liquid inlet pipe 2, and the rare gas is sprayed into the atomization tube 6 through the air inlet pipe 3. The sprayed solution sample and the rare gas collide vertically in the atomization tube 6 to form a uniform aerosol. The aerosol enters the spray chamber 1 through the atomization tube 6 and rotates and flows in the spray chamber 1. The aerosol in the spray chamber 1 is led out through the aerosol lead-out pipe into a mass spectrometer or an optical spectrum analyzer, and the generated waste liquid is discharged through the discharge pipe 5.

[0051] Compared with the prior art, the cross-type atomization chamber provided in this embodiment sets the liquid inlet pipe and the air inlet pipe as a cross-shaped structure, and sets the liquid inlet pipe, the air inlet pipe and the mist chamber as an integrated structure, which can reduce the memory interference of the residual sample elements and improve the accuracy of the test results; the inner diameter of the liquid inlet pipe (0.2-0.4mm) is significantly larger than the inner diameter of the liquid inlet pipe of the traditional concentric atomizer (0.1mm-0.2mm), which can avoid the blockage of the liquid inlet pipe, and the carrier gas flow rate adjustment range is large, the working stability is good, and the same atomization chamber can be applied to spectral analysis and mass spectrometry at the same time. In addition, the jet nozzle of the air inlet pipe is an arc-shaped concave structure, which can avoid the generation of effusion and significantly improve the atomization efficiency. In addition, the cross-type atomization chamber is made of quartz material, the expansion coefficient of quartz is low, the material properties are stable, the purity is high, and the carbon deposits in the liquid inlet pipe can be removed by high-temperature combustion. It is easy to operate and has a good cleaning effect. It greatly shortens the conventional cleaning time, greatly improves the test efficiency, and can completely avoid interference with the test results due to incomplete cleaning, thereby improving the accuracy of the test results.

[0052] Example 2

[0053] Another embodiment of the present invention discloses a method for preparing the cross-type atomization chamber in Example 1, which specifically comprises the following steps:

[0054] Step 1: Prepare the liquid inlet pipe 2, the air inlet pipe 3 and the atomization pipe 6.

[0055] Preparation of the liquid inlet pipe 2 and the air inlet pipe 3 First, connect the atomizing pipe 6 to the mist chamber 1 , preferably by sintering connection, so that the atomizing pipe 6 is integrally formed on the side wall of the mist chamber 1 .

[0056] Step 2: Install the liquid inlet pipe 2, the air inlet pipe 3, the atomizing pipe 6 and the atomizing chamber 1 in the sintering mold so that the center line of the liquid inlet pipe 2 and the center line of the air inlet pipe 3 are perpendicular.

[0057] Install the liquid inlet pipe 2 and the air inlet pipe 3 at the liquid inlet pipe mounting opening and the air inlet pipe mounting opening on the atomizing pipe 6 respectively, so that the center line of the liquid inlet pipe 2 and the center line of the air inlet pipe 3 are perpendicular; install the installed mist chamber 1, atomizing pipe 6, liquid inlet pipe 2 and air inlet pipe 3 in a sintering mold, wherein the mist chamber 1, atomizing pipe 6, liquid inlet pipe 2 and air inlet pipe 3 are positioned by a mobile platform, and the liquid inlet pipe 2 and the air inlet pipe 3 are vertically corrected, and firing is performed after positioning and correction.

[0058] Among them, the sintering mold includes a mist chamber cavity, a liquid inlet tube cavity and an air inlet tube cavity, and the mist chamber 1, the liquid inlet tube 2 and the air inlet tube 3 are respectively installed in the mist chamber cavity, the liquid inlet tube cavity and the air inlet tube cavity, and the liquid outlet of the liquid inlet tube 2 and the jet outlet of the air inlet tube 3 are respectively extended into the liquid inlet tube mounting port and the air inlet tube mounting port, that is, the liquid jet outlet and the jet outlet are located in the atomizing tube 6, and the length of the liquid inlet tube 2 and the air inlet tube 3 extending into the atomizing tube 6 is adjusted so that the distance between the center point of the liquid outlet of the liquid inlet tube 2 and the center line of the air inlet tube 3 is between 0 and 0.3 mm, and the outer wall of the liquid inlet tube 2 does not contact the outer wall of the air inlet tube 3. Preferably, the center point of the liquid jet outlet of the liquid inlet tube 2 is located on the center line of the air inlet tube, and the distance L2 from the center point of the liquid jet outlet to the plane where the jet outlet of the jet front section 31 is located is greater than the wall thickness d of the liquid jet section 22, L2=d+(0.2mm~0.5mm).

[0059] The positions of the liquid inlet pipe 2 and the air inlet pipe 3 are locked by fasteners to ensure that the air outlet direction of the air inlet pipe 3 and the liquid outlet direction of the liquid inlet pipe 2 are vertical.

[0060] Step 3: After debugging on the mobile platform, the spray chamber 1, the liquid inlet pipe 2, the air inlet pipe 3 and the atomizing pipe 6 are integrally welded so that the liquid inlet pipe 2 and the air inlet pipe 3 are fixedly connected to the atomizing pipe 6 to complete the preparation of the cross-type atomizing chamber.

[0061] In this embodiment, the welding temperature is 2000° C. to 8000° C., and the sintering mold and the fasteners are made of high temperature resistant materials.

[0062] Compared with the prior art, the preparation method of the cross-type atomization chamber provided in this embodiment is simple to operate, precise in processing, high in qualified rate, and convenient for large-scale production. The preparation material is quartz, which has a low expansion coefficient, stable material properties, and high purity. The carbon deposits in the liquid inlet pipe can be removed by high-temperature combustion. The operation is convenient, the cleaning effect is good, the conventional cleaning time is greatly shortened, the test efficiency is greatly improved, and the interference of the test results due to incomplete cleaning can be completely avoided, thereby improving the accuracy of the test results.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A cross-type atomization chamber, characterized in that: It comprises a mist chamber (1) and an atomizer, wherein the top of the mist chamber (1) is provided with an aerosol outlet, the bottom is provided with a liquid discharge outlet, and the side wall of the mist chamber (1) is provided with an atomizer installation port; The atomizer comprises an atomizing tube (6), a liquid inlet tube (2) and an air inlet tube (3); one end of the atomizing tube (6) is closed, and the other end is integrally formed with the atomizer mounting port; The liquid inlet pipe (2) and the air inlet pipe (3) are arranged on the atomizing pipe (6); the liquid outlet of the liquid inlet pipe (2) and the air jet outlet of the air inlet pipe (3) are both located inside the atomizing pipe (6); and the center line of the liquid inlet pipe (2) is perpendicular to the center line of the air inlet pipe (3); The liquid inlet pipe (2) comprises a liquid inlet connecting section (21) and a liquid spraying section (22); the inner diameter of the liquid inlet connecting section (21) is larger than the inner diameter of the liquid spraying section (22); the liquid inlet connecting section (21) and the liquid spraying section (22) are connected in a diameter-changing transition; The air intake pipe (3) comprises a jet front section (31), a jet middle section (32) and a jet rear section (33) which are connected in a variable diameter transition, and the inner diameter of the jet middle section (32) is larger than the inner diameters of the jet front section (31) and the jet rear section (33); The inner diameter R1 of the liquid spray section (22) is 0.2 to 0.4 mm, and the inner diameter R2 of the jet front section (31) is 0.2 to 0.4 mm; The center line of the liquid spray section (22) is perpendicular to the center line of the jet front section (31); the liquid inlet pipe (2) is located on one side of the center line of the air inlet pipe (3); the position of the liquid spray port of the liquid inlet pipe (2) does not exceed the center line of the air inlet pipe; and the vertical distance L1 between the center point of the liquid spray port and the center line of the air inlet pipe (3) is 0 to 0.2 mm.

2. The cross-type atomization chamber according to claim 1, characterized in that: The atomizing pipe (6) is provided with a liquid inlet pipe installation opening and an air inlet pipe installation opening; The outer wall of the liquid inlet pipe (2) and the outer wall of the air inlet pipe (3) are respectively sealed and welded to the liquid inlet pipe mounting opening and the air inlet pipe mounting opening.

3. The cross-type atomization chamber according to claim 1, characterized in that: The air jet is arranged as an arc-shaped recessed structure (34), and the lowest point of the arc-shaped recessed structure (34) is located on the center line of the air intake pipe (3).

4. The cross-type atomization chamber according to any one of claims 1 to 3, characterized in that: The mist chamber (1) is also provided with a liquid discharge pipe (5) and an aerosol outlet pipe; The liquid discharge pipe (5) is connected to the liquid discharge port and is used to guide the waste liquid to flow out; the aerosol outlet pipe is used to outlet the aerosol.

5. The cross-type atomization chamber according to claim 4, characterized in that: The aerosol outlet pipe extends into the mist chamber (1) through the aerosol outlet, and the aerosol outlet pipe is sealedly connected to the aerosol outlet.

6. The cross-type atomization chamber according to claim 5, characterized in that: The mist chamber (1), the liquid inlet pipe (2), the air inlet pipe (3), the atomizing pipe (6), the aerosol outlet pipe, the liquid discharge pipe (5) and the ball bowl (4) are all made of quartz material.

7. A method for preparing a cross-type atomization chamber according to any one of claims 1 to 6, characterized in that: The steps include: Step 1: preparing a liquid inlet pipe (2), an air inlet pipe (3) and an atomization pipe (6); Step 2: Install the liquid inlet pipe (2), the air inlet pipe (3), the atomizing pipe (6) and the atomizing chamber (1) in the sintering mold so that the center line of the liquid inlet pipe (2) and the center line of the air inlet pipe (3) are perpendicular; Step 3: The sintering mold equipped with the mist chamber (1), the liquid inlet pipe (2), the air inlet pipe (3) and the atomizing pipe (6) is subjected to high-temperature sintering as a whole, so that the liquid inlet pipe (2) and the air inlet pipe (3) are fixedly connected to the atomizing pipe (6), thereby completing the preparation of the cross-type atomizing chamber.

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