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Vortex tube with adjustable hot end tube length and nozzle flow

A vortex tube and flow regulation technology, applied in the field of vortex tubes, can solve the problems of limiting the length variation range of the hot end tube, difficult to change continuously, and reducing the outflow of the outer fluid.

Active Publication Date: 2021-06-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the regulating valve body still has the following problems: the conical valve body is fixed, and the length of the hot end pipe is adjusted by changing the positions of the conical spool and the valve body. When the length of the pipe is long, it is necessary to align the vertical space behind the restrictor hole of the hot end valve with the pipe before leading the hot fluid out.
Since the tubes are arranged at intervals on the tube wall, the adjustment of the length of the hot end tube is an interval change, and it is difficult to achieve a continuous change, thus limiting the range of change in the length of the hot end tube
In addition, due to the fixation of the tapered valve body and the existence of the restricting hole, the outer fluid of the hot end pipe (mainly used for heating) will be restricted by the annular plate around the restricting hole, reducing the flow rate of the outer fluid. outflow, limiting the scope of use

Method used

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  • Vortex tube with adjustable hot end tube length and nozzle flow
  • Vortex tube with adjustable hot end tube length and nozzle flow
  • Vortex tube with adjustable hot end tube length and nozzle flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-4 As shown, this embodiment provides a vortex tube with adjustable length of the hot end tube and adjustable nozzle flow rate, including a cold end tube 1 connected in sequence, a cold orifice plate 2, a vortex chamber 3, a hot orifice plate 8, a hot end tube 9 and Hot end cover 13. The vortex chamber 3 is provided with a circular air inlet pipe, and a plurality of air inlet nozzles 7 are evenly arranged on the air inlet pipe, and the vortex chamber 3 is correspondingly provided with a plurality of process holes, and each air inlet nozzle 7 is provided with a flow regulator, and the flow regulator The operating end of the handle protrudes from the corresponding process hole and is set; the hot end tube 9 is provided with an umbrella-shaped regulator, and the umbrella-shaped regulator includes an umbrella head 10, an umbrella support rod 11 and an umbrella pull rod 12, and one end of the umbrella support rod 11 is fixed on the The other end of the inne...

Embodiment 2

[0037] Such as Figure 5 As shown, the difference between the vortex tube in this embodiment and that in Embodiment 1 is that ten liquid outflow holes are provided at the bottom of the hot end tube 9 , which are respectively connected to the first to tenth inlets of the liquid channel 15 .

[0038] The use process of the vortex tube described in this embodiment is as follows:

[0039] A vortex tube is required for refrigeration conditions, and R290 refrigerant is used. The number of intake nozzles 7 of the vortex tube is eight, and the flow into the intake nozzle 7 needs to be controlled. R290 will potentially liquefy in the vortex tube due to temperature drop . At this time, the R290 refrigerant fluid enters the vortex chamber 3 (outside the intake nozzle 7) through the inlet of the vortex chamber 3 of the vortex tube, adjusts the rotating pointer 4, and controls the opening and closing of the cover 5 through the first rotating rod 6, so that the intake air There are six in...

Embodiment 3

[0041] Such as Figure 6 As shown, compared with Embodiment 1, the vortex tube described in this embodiment differs only in that the inlet nozzle 17 of the circular inlet pipe in the vortex chamber 3 is a tapered circular channel, and the flow regulator includes a conical head 18 And the connecting rod 16, the conical head 18 is located in the air inlet nozzle 17, one end of the connecting rod 16 is connected to the conical head 18, and the other end stretches out from the process hole of the vortex chamber 3 and is set.

[0042] The vortex tube in this embodiment can control the opening degree and closing state of the intake nozzle 17 by pulling the connecting rod 16, thereby adjusting the flow rate of the fluid entering the intake nozzle.

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PUM

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Abstract

The invention discloses a vortex tube with the adjustable hot end tube length and nozzle flow. The vortex tube comprises a cold end tube, a cold pore plate, a vortex chamber, a hot pore plate, a hot end tube and a hot end sealing cover which are connected in sequence. A circular air inlet tube is arranged in the vortex chamber, a plurality of air inlet nozzles are uniformly arranged on the air inlet tube, and a plurality of process holes are correspondingly formed in the vortex chamber. Each air inlet nozzle is provided with a flow adjusting piece, and the operation end of each flow adjusting piece extends out of the corresponding process hole. An umbrella-shaped adjusting piece is arranged in the hot end tube and comprises an umbrella head, an umbrella supporting rod and an umbrella pulling rod. One end of the umbrella supporting rod is fixedly arranged on the inner surface of the umbrella head, the other end of the umbrella supporting rod is connected with the umbrella pulling rod, and the operation end of the umbrella pulling rod extends out of the hot end sealing cover. By adjusting the mechanical parts such as an external connecting rod of the vortex tube, the position of an internal hot end adjusting valve of the vortex tube in a closed state can be adjusted, the flow of fluid entering the nozzles of the vortex tube and the number of the nozzles can also be adjusted, and the internal structure can be adjusted without disassembling the vortex tube.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a vortex tube with adjustable length of hot end tube and adjustable nozzle flow rate. Background technique [0002] A vortex tube is a thermodynamic device that separates fluids into temperature. The vortex tube has a simple structure and is usually composed of nozzles, vortex chambers, hot end regulating valves, cold orifice plates and other components. The high-pressure gas enters the vortex chamber through the nozzle of the vortex tube, which is usually a reducing nozzle. The fluid decompresses and accelerates in the nozzle, and rotates at a high speed in the vortex chamber. Through the temperature and energy separation characteristics, a high-temperature hot fluid is formed in the outer layer of the rotating fluid, and a low-temperature cold fluid is formed in the inner layer of the rotating fluid. The low-temperature cold fluid in the inner layer flows back after col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/04F25B49/00
CPCF25B9/04F25B49/00
Inventor 王征叶碧翠袁越王成群吴江
Owner ZHEJIANG SCI-TECH UNIV