CN217006938U - Novel venturi atomizer - Google Patents
Novel venturi atomizer Download PDFInfo
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- CN217006938U CN217006938U CN202122768248.0U CN202122768248U CN217006938U CN 217006938 U CN217006938 U CN 217006938U CN 202122768248 U CN202122768248 U CN 202122768248U CN 217006938 U CN217006938 U CN 217006938U
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- liquid phase
- phase channel
- venturi atomizer
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Abstract
The utility model discloses a novel Venturi atomizer, which comprises a spray seat (6), wherein a sealing cavity is arranged in the spray seat (6), the cavity of the sealing cavity is respectively communicated with a liquid phase channel and a gas phase channel which are led to the outside, the outer side end of the liquid phase channel is connected with a sample inlet pipe (1), and the inner diameter of the liquid phase channel is smaller than that of the gas phase channel; the liquid phase channel and the gas phase channel are straight tube channels, and the included angle between the liquid phase channel and the gas phase channel is 50-90 degrees.
Description
Technical Field
The utility model belongs to the technical field of analytical instruments, and particularly relates to a novel Venturi atomizer which can be used for analytical instruments such as a flame photometer or an atomic absorption spectrophotometer and the like.
Background
The existing Venturi atomizer used in an analytical instrument has the defects of structural design, so that most of Venturi atomizers have the defects of low atomization efficiency, large sample size and nonuniform atomization, and further, the stability and the sensitivity of the gas analysis such as a flame photometer or an atomic absorption spectrophotometer are greatly limited, and the Venturi atomizer has great limitation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the existing Venturi atomizer and provide a novel Venturi atomizer with a uniform atomizing effect.
The technical problem to be solved can be implemented by the following technical scheme.
A novel Venturi atomizer is characterized by comprising a spray seat, wherein a sealing cavity is arranged in the spray seat, a cavity of the sealing cavity is respectively communicated with a liquid phase channel and a gas phase channel which are led to the outside, the outer side end of the liquid phase channel is connected with a sample inlet pipe, and the inner diameter of the liquid phase channel is smaller than that of the gas phase channel; the liquid phase channel and the gas phase channel are straight tube channels, and an included angle between the liquid phase channel and the gas phase channel is 50-90 degrees.
As a further improvement of the technical scheme, the liquid phase channel is a liquid phase pipe, and the liquid phase pipe is inserted and sealed in an inner through hole of a threaded connecting piece and is fixed on the base body of the spray base through the threaded connecting piece.
As a further improvement of this solution, said threaded connection comprises a tightening nut.
As a further improvement of the technical scheme, two ends of the liquid phase pipe extend out of the inner through hole of the threaded connecting piece.
As a further improvement of the technical scheme, the outside of the liquid phase pipe is sleeved with the sampling pipe in an interference fit mode.
Preferably, the minimum to maximum interference dimension at the interference fit is in the range of 0.5-1 mm.
As a further improvement of the present technical solution, the spray base has a cap, and the cap is fixed or openably positioned on the spray base.
Preferably, the sealed cavity is a cylindrical cavity, and the cylindrical cavity and the liquid phase channel have a common geometric central axis.
Based on the principle of the air atomizer, the novel venturi atomizer adopting the technical scheme has the advantages that through the ingenious internal structure design, the two channels inside the atomizer generate pressure difference, namely the gas-phase pipe and the liquid-phase pipe port generate pressure difference, so that the liquid phase is brought into the cavity of the atomizer through negative pressure, and is impacted by gas-phase high-speed jet flow, and the liquid phase generates uniform atomization effect. The method is mainly applied to sample introduction systems of analytical instruments such as a flame photometer, an atomic absorption spectrophotometer and the like in the analytical instruments.
Drawings
FIG. 1 is a schematic structural view of the novel venturi atomizer of the present invention;
FIG. 2 is an exploded view of FIG. 1;
in the figure: 1-sample inlet tube; 2-liquid phase pipe; 3-a stud; 4, a nut; 5-gas phase pipe; 6-spraying base; and 7, covering the cap.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The utility model provides a novel Venturi atomizer which comprises a sample inlet pipe 1, wherein the sample inlet pipe 1 is sleeved outside a liquid phase pipe 2, the liquid phase pipe 2 is inserted into a stud 3 (for example, the sample inlet pipe is inserted and positioned in a hollow through hole of the stud), the sample inlet pipe is fixed on a spray base 6 through a nut 4, and a gas phase pipe 5 and a cover cap 7 are respectively fixed on the spray base 6. The liquid phase pipe 2 and the gas phase pipe 5 communicate with an inner cavity (for example, cylindrical) and an outer portion of the spray base 6, respectively.
The liquid phase pipe 2 and the gas phase pipe 5 are straight pipes, the included angle between the liquid phase pipe 2 and the gas phase pipe 5 is 50-90 degrees, and the inner diameter of a passage of the liquid phase pipe 2 is smaller than that of the passage of the gas phase pipe 5.
Wherein, the sampling tube 1 is sleeved outside the liquid phase tube 2, the sampling tube and the liquid phase tube adopt an interference fit mode, and the size of the fit position is 0.5-1 mm. The liquid phase pipe 2 is inserted into the stud 3 and sealed by sealant.
The liquid phase pipe 2 and the stud 3 are fixed on the spray seat 6 through a nut 4. The gas phase pipe 5 is fixed on the spray base 6 by welding or strong glue. The cap 7 is fixed on the spray seat 6 by welding or strong glue, or an open-close type structure which can be closed when in use can also be adopted.
The sealing glue and the super glue can adopt high temperature resistant glue such as silica gel, AB glue and the like.
Claims (8)
1. The novel Venturi atomizer is characterized by comprising a spray seat (6), wherein a sealing cavity is arranged in the spray seat (6), the cavity of the sealing cavity is respectively communicated with a liquid-phase channel and a gas-phase channel which are led to the outside, the outer side end of the liquid-phase channel is connected with a sample inlet pipe (1), and the inner diameter of the liquid-phase channel is smaller than that of the gas-phase channel; the liquid phase channel and the gas phase channel are straight tube channels, and an included angle between the liquid phase channel and the gas phase channel is 50-90 degrees.
2. The venturi atomizer according to claim 1, wherein the liquid phase passage is a liquid phase pipe (2), and the liquid phase pipe (2) is inserted and sealed in an inner through hole of a threaded connector and is screwed on the base body of the nozzle base (6) through the threaded connector.
3. The venturi atomizer according to claim 2, wherein said threaded connection comprises a turndown nut (4).
4. The venturi atomizer according to claim 2, characterized in that both ends of the liquid phase pipe (2) protrude out of the inner through hole of the threaded connection.
5. The venturi atomizer according to claim 2, wherein the liquid phase pipe (2) is sleeved with the sample inlet pipe (1) in an interference fit manner.
6. The novel venturi atomizer of claim 5, wherein the minimum to maximum interference dimension at the interference fit is in the range of 0.5-1 mm.
7. The venturi atomizer according to claim 1, characterized in that the nozzle base (6) has a cap (7), the cap (7) being fixedly or openably positioned on the nozzle base (6).
8. The venturi atomizer of claim 1, wherein said sealed chamber is a cylindrical chamber having a common geometric central axis with said liquid phase passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122768248.0U CN217006938U (en) | 2021-11-12 | 2021-11-12 | Novel venturi atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122768248.0U CN217006938U (en) | 2021-11-12 | 2021-11-12 | Novel venturi atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217006938U true CN217006938U (en) | 2022-07-19 |
Family
ID=82381134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122768248.0U Active CN217006938U (en) | 2021-11-12 | 2021-11-12 | Novel venturi atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217006938U (en) |
-
2021
- 2021-11-12 CN CN202122768248.0U patent/CN217006938U/en active Active
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