CN209743263U - Fluid jet vacuum generator - Google Patents
Fluid jet vacuum generator Download PDFInfo
- Publication number
- CN209743263U CN209743263U CN201920534622.0U CN201920534622U CN209743263U CN 209743263 U CN209743263 U CN 209743263U CN 201920534622 U CN201920534622 U CN 201920534622U CN 209743263 U CN209743263 U CN 209743263U
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- pipe
- fluid
- tee bend
- jet vacuum
- vacuum generator
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Abstract
The utility model discloses a fluid jet vacuum generator, including pipe fitting tee bend, fluid import pipe and fluid outlet pipe cartridge are in the through pipe at tee bend both ends respectively, and the inner of fluid import pipe forms the bore and far is less than the nozzle of being responsible for, leaves the clearance of intercommunication tee bend bypass pipe between fluid import pipe and the fluid outlet pipe. The utility model discloses fall into the triplex with fluid jet vacuum generator, reduced the processing degree of difficulty of part, main part tee bend part adopts general tee bend structure on the market, and the current tee bend pipe fitting of accessible purchase reforms transform, has improved the suitability of the interface of product, reduces the manufacturing cost of product again, imports and exports the pipeline section simultaneously and has guaranteed the concentric precision of imports and exports again through the single face of cylinder interference fit of tee bend. This configuration is more suitable for mass production of high-precision small-sized fluid jet vacuum generators. And the inlet pipe adopts a bowl-shaped structure to reduce the length of the product.
Description
Technical Field
The utility model relates to a fluid jet vacuum generator technical field.
Background
The current fluid jet vacuum generator is designed based on the structure of a standard Venturi tube, and a tapered surface is arranged at an inlet section and an outlet section, so that the jet vacuum generator is too long in length, and a product needs a larger installation space. Meanwhile, the structure of the current injection vacuum generator is mainly divided into two types, one type is an integrated structure, namely an inlet outlet and an air suction port are machined on the same material, and parts need to be positioned for many times during machining of the structure. The second is a two-segment structure, i.e. a structure in which the inlet segment and the air suction port outlet segment are separately processed and positioned and assembled, which solves the problem of difficult processing of the inlet segment, but does not solve the problems of difficult processing and low precision of the air suction port outlet segment of the product, and the two structures are not suitable for mass production of high-precision fluid jet vacuum generators
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a reducible product length can guarantee the fluid jet vacuum generator of machining precision again when reducing the processing degree of difficulty.
The technical scheme adopted for solving the technical problems is as follows: a fluid jet vacuum generator, characterized by: the three-way pipe fitting comprises a pipe fitting tee joint, a fluid inlet pipe and a fluid outlet pipe, wherein the fluid inlet pipe and the fluid outlet pipe are respectively inserted into through pipes at two ends of the tee joint, a nozzle with a caliber far smaller than that of a main pipe is formed at the inner end of the fluid inlet pipe, and a gap communicated with a bypass pipe of the tee joint is reserved between the fluid inlet pipe and the fluid outlet pipe.
On the basis, a bowl-shaped narrowing is formed between the nozzle of the fluid inlet pipe and the main pipe.
On the basis, the fluid inlet pipe and the fluid outlet pipe are arranged in an interference fit mode and a tee joint.
Adopt the utility model discloses the beneficial effect who brings: the utility model discloses fall into the triplex with fluid jet vacuum generator, the pipe fitting tee bend, fluid inlet pipe and fluid outlet pipe, the triplex divides the processing degree of difficulty that processing has reduced the part, wherein the exit pipeline section that the required precision is high all can adopt columniform structure, the processing degree of difficulty is low, the inside structure precision of product has effectively been guaranteed, main part tee bend part adopts general tee bend structure on the market, the current tee bend pipe fitting of accessible purchase reforms transform, the suitability of the interface of product has been improved, reduce the manufacturing cost of product again, the face of cylinder has been guaranteed again to the face of cylinder of importing and exporting concentric precision through three-way single interference fit simultaneously. This configuration is more suitable for mass production of high-precision small-sized fluid jet vacuum generators. And the inlet pipe adopts a bowl-shaped structure to reduce the length of the product.
Drawings
Fig. 1 is a schematic structural diagram of a fluid jet vacuum generator according to the present invention.
Detailed Description
As shown in fig. 1, a fluid jet vacuum generator is characterized in that: the three-way pipe comprises a pipe fitting tee joint 1, a fluid inlet pipe 2 and a fluid outlet pipe 3, wherein the fluid inlet pipe 2 and the fluid outlet pipe 3 are respectively inserted into straight-through pipes at two ends of the tee joint, a nozzle 21 with the caliber far smaller than that of a main pipe is formed at the inner end of the fluid inlet pipe 2, and a gap 4 communicated with a bypass pipe 11 of the tee joint 1 is reserved between the fluid inlet pipe 2 and the fluid outlet pipe 3. Compressed air enters from the fluid inlet pipe 2 and then is sprayed out from the nozzle 21, strong airflow with increased flow speed is sprayed out, after the high-speed airflow enters the diffusion cavity of the fluid outlet pipe 3, a negative pressure vacuum area is formed on the periphery of the nozzle 21, air in the bypass pipe 11 of the tee joint 1 is sucked into the fluid outlet pipe 3 through the gap 4, and the flow speed of the high-speed airflow entering the diffusion cavity is supplemented.
The fluid jet vacuum generator is divided into three parts, namely a pipe fitting tee joint 1, a fluid inlet pipe 2 and a fluid outlet pipe 3, the three parts are processed separately, so that the processing difficulty of parts is reduced, the inlet pipe section and the outlet pipe section with high precision requirements can adopt cylindrical structures, the processing difficulty is low, the structural precision inside a product is effectively guaranteed, and the concentric precision of the inlet pipe and the outlet pipe is guaranteed. The main part tee bend part adopts general tee bend structure in the market, and the accessible is purchased current tee bend pipe fitting and is reformed transform, has improved the suitability of the interface of product, reduces the manufacturing cost of product again. This configuration is more suitable for mass production of high-precision small-sized fluid jet vacuum generators.
Further, the provision of the narrowing of the bowl-like shape 22 between the nozzle 21 and the main pipe of the fluid inlet pipe 2 effectively reduces the length of the product and creates a higher vacuum with a smaller inlet pressure.
Furthermore, the fluid inlet pipe 2 and the fluid outlet pipe are installed with the tee joint 1 in an interference fit mode, and therefore assembly is convenient and fast.
Claims (3)
1. A fluid jet vacuum generator, characterized by: the three-way pipe fitting comprises a pipe fitting tee joint, a fluid inlet pipe and a fluid outlet pipe, wherein the fluid inlet pipe and the fluid outlet pipe are respectively inserted into through pipes at two ends of the tee joint, a nozzle with a caliber far smaller than that of a main pipe is formed at the inner end of the fluid inlet pipe, and a gap communicated with a bypass pipe of the tee joint is reserved between the fluid inlet pipe and the fluid outlet pipe.
2. The fluid jet vacuum generator of claim 1, wherein: the space between the nozzle of the fluid inlet pipe and the main pipe is designed to be narrowed in a bowl shape.
3. The fluid jet vacuum generator as claimed in claim 1 or 2, wherein: the fluid inlet pipe and the fluid outlet pipe are arranged in an interference fit mode and are arranged in a tee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534622.0U CN209743263U (en) | 2019-04-18 | 2019-04-18 | Fluid jet vacuum generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534622.0U CN209743263U (en) | 2019-04-18 | 2019-04-18 | Fluid jet vacuum generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743263U true CN209743263U (en) | 2019-12-06 |
Family
ID=68721502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920534622.0U Active CN209743263U (en) | 2019-04-18 | 2019-04-18 | Fluid jet vacuum generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743263U (en) |
-
2019
- 2019-04-18 CN CN201920534622.0U patent/CN209743263U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |