Vortex change-over valve element

Abstract

The utility model discloses a vortex change-over valve element which comprises an element body. A first air flow channel and a second air flow channel are formed in the core body, the first air flow channel is communicated with the second air flow channel, one end of the first air flow channel is a first outer end, the other end of the first air flow channel is a first inner end, one end of the second air flow channel is a second outer end, and the other end of the second air flow channel is a second inner end; the inner diameter of the second inner end is smaller than that of the first inner end, the inner diameter of the second air flow channel is gradually increased from the second inner end to the second outer end, a side flow channel is arranged in the core body, one end of the side flow channel is an input port, the other end of the side flow channel is an output port, and the output port is communicated with the first air flow channel. The side flow channel, the first air flow channel and the second air flow channel are arranged, and the second air flow channel is trumpet-shaped, so that cold air flow is quickly jetted, the jetting speed of the cold air flow is improved, and the refrigeration effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a vortex conversion valve core. Background Art

[0002] Vortex tube refrigeration is a method of using the vortex tube to separate the cold and hot airflows into a vortex in a high-speed airflow, and then using the cold airflow to obtain refrigeration. Ranque was the first person to study vortex tubes. In his early research, he believed that the adiabatic expansion process of the inner swirling gas flow and the adiabatic compression process of the outer swirling airflow were the fundamental reasons for the energy separation effect of the vortex tube. Hilsch believed that the reason for the energy separation of the vortex tube was not only the Ranque reason, but also the viscous friction effect between the outer swirling airflow layers.

[0003] In the prior art, compressed air is directly introduced into the vortex tube, so that the injection speed of the cold air flow is not enough when it is injected, thereby affecting the refrigeration effect. In view of this, the inventor has conducted in-depth research on the above-mentioned defects in the prior art, and thus the present invention is produced. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the above-mentioned technology to at least a certain extent. To this end, the purpose of the utility model is to provide a vortex conversion valve core, which realizes rapid injection of cold air flow by setting a side flow channel, a first flow channel and a second flow channel, and the second flow channel is trumpet-shaped, thereby increasing the injection speed of the cold air flow and achieving a better cooling effect.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a vortex conversion valve core, comprising a core body;

[0006] A first airflow channel and a second airflow channel are formed inside the core body, the first airflow channel is connected to the second airflow channel, one end of the first airflow channel is a first outer end, the other end of the first airflow channel is a first inner end, one end of the second airflow channel is a second outer end, the other end of the second airflow channel is a second inner end, the inner diameter of the second inner end is smaller than the inner diameter of the first inner end, and the inner diameter of the second airflow channel gradually increases from the second inner end to the second outer end, a side flow channel is arranged in the core body, one end of the side flow channel is an input port, the other end of the side flow channel is an output port, and the output port is connected to the first airflow channel.

[0007] Further, the inner diameter of the first inner end is equal to the inner diameter of the first outer end.

[0008] Furthermore, the end of the core forms a positioning head.

[0009] Furthermore, a positioning groove is formed in the middle of the core body.

[0010] Furthermore, the side flow channels are provided in a plurality, and the plurality of side flow channels are evenly distributed in the core body.

[0011] Furthermore, the number of the side flow channels is six.

[0012] Furthermore, the side flow channel is distributed on the vortex conversion valve core in a spiral shape, so that the air flow in the side flow channel has a tendency to flow toward the first air flow channel.

[0013] After adopting the above structure, the vortex conversion valve core involved in the utility model has at least the following beneficial effects:

[0014] First, when in use, the compressed air is passed into the input port, so that the compressed air is output from the output port, and the compressed air is then transported to the vortex tube through the side flow channel to separate the compressed air into cold and hot air flows. Since the inner diameter of the second inner end is smaller than the inner diameter of the first inner end, and the inner diameter of the second air flow channel gradually increases from the second inner end to the second outer end, the second air flow channel is trumpet-shaped. In this way, after the compressed air is passed into the vortex tube, the cold air flow reverses. When the cold air flow reverses, it has a Venturi effect, thereby forming a high-speed jet, which accelerates the circulation and cooling of the air.

[0015] Second, by providing a positioning head and a positioning groove, it is convenient to install the vortex conversion valve core in the vortex tube. After installation, the vortex conversion valve core is limited in the vortex tube and the vortex conversion valve core will not shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the vortex conversion valve core according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the vortex conversion valve core according to another angle of the embodiment of the utility model;

[0018] Figure 3 for Figure 2 Cross-section of the middle AA;

[0019] Figure 4 for Figure 2 Cross-section of the middle BB;

[0020] Figure 5 It is a schematic diagram of the structure inside the vortex conversion valve core according to an embodiment of the utility model;

[0021] Figure 6 It is a structural schematic diagram of another angle inside the vortex conversion valve core according to an embodiment of the utility model;

[0022] Figure 7 for Figure 6 Cross-section of the middle CC;

[0023] Figure 8It is a schematic diagram of the structure of the vortex conversion valve core applied to the vortex tube according to the embodiment of the utility model.

[0024] Description of symbols

[0025] The core body 1 , the first air flow channel 11 , the first outer end 111 , the first inner end 112 , the second air flow channel 12 , the second outer end 121 , the second inner end 122 , the side flow channel 13 , the input port 131 , the output port 132 , the positioning head 14 , and the positioning groove 15 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] like Figures 1 to 8 As shown, a vortex conversion valve core of the utility model includes a core body 1; a first air flow channel 11 and a second air flow channel 12 are formed inside the core body 1, the first air flow channel 11 is connected with the second air flow channel 12, one end of the first air flow channel 11 is a first outer end 111, the other end of the first air flow channel 11 is a first inner end 112, one end of the second air flow channel 12 is a second outer end 121, the other end of the second air flow channel 12 is a second inner end 122, the inner diameter of the second inner end 122 is smaller than the inner diameter of the first inner end 112, the inner diameter of the second air flow channel 12 gradually increases from the second inner end 122 to the second outer end 121, a side flow channel 13 is arranged in the core body 1, one end of the side flow channel 13 is an input port 131, the other end of the side flow channel 13 is an output port 132, and the output port 132 is connected with the first air flow channel 11.

[0028] Thus, the vortex conversion valve core involved in the utility model, when in use, passes compressed air into the input port 131, so that the compressed air is output from the output port 132, and the compressed air is then transported to the vortex tube through the side flow channel 13, so as to separate the compressed air into cold and hot air flows. Since the inner diameter of the second inner end 122 is smaller than the inner diameter of the first inner end 112, and the inner diameter of the second air flow channel 12 gradually increases from the second inner end 122 to the second outer end 121, the second air flow channel 12 is trumpet-shaped, so that after the compressed air is passed into the vortex tube, the cold air flow reverses, and when the cold air flow reverses, it has a Venturi effect, thereby forming a high-speed jet, accelerating the circulation and cooling of the air.

[0029] In this embodiment, the inner diameter of the first inner end 112 is equal to the inner diameter of the first outer end 111 , so that the first air channel 11 is columnar, which facilitates the compressed air to pass into the first air channel 11 .

[0030] Further, a positioning head 14 is formed at the end of the core body 1, and a positioning groove 15 is formed in the middle of the core body 1. By providing the positioning head 14 and the positioning groove 15, it is convenient to install the vortex conversion valve core in the vortex tube. After installation, the vortex conversion valve core is limited in the vortex tube, and the vortex conversion valve core will not shake.

[0031] Further, the side flow channels 13 are provided in a plurality, and the plurality of side flow channels 13 are evenly distributed in the core body 1. By providing a plurality of side flow channels 13, it is convenient for the compressed gas to pass into the first flow channel 11 from different side flow channels 13. Specifically, the side flow channels 13 are provided in six numbers.

[0032] In this embodiment, the side flow channel 13 is spirally distributed on the vortex conversion valve core, so that the airflow in the side flow channel 13 has a tendency to flow toward the first flow channel 11. Since the side flow channel 13 is spirally distributed on the vortex conversion valve core, when the compressed gas enters from different side flow channels 13, it is easy for the airflow to have a tendency to flow toward the first flow channel 11, thereby quickly dividing the compressed air into hot air flow and cold air flow.

[0033] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A vortex conversion valve core, characterized in that: including a core; A first airflow channel and a second airflow channel are formed inside the core body, the first airflow channel is connected to the second airflow channel, one end of the first airflow channel is a first outer end, the other end of the first airflow channel is a first inner end, one end of the second airflow channel is a second outer end, the other end of the second airflow channel is a second inner end, the inner diameter of the second inner end is smaller than the inner diameter of the first inner end, and the inner diameter of the second airflow channel gradually increases from the second inner end to the second outer end, a side flow channel is arranged in the core body, one end of the side flow channel is an input port, the other end of the side flow channel is an output port, and the output port is connected to the first airflow channel.

2. The vortex conversion valve core according to claim 1, characterized in that: The inner diameter of the first inner end is equal to the inner diameter of the first outer end.

3. The vortex conversion valve core according to claim 1, characterized in that: The end of the core forms a positioning head.

4. The vortex conversion valve core according to claim 1, characterized in that: A positioning groove is formed in the middle of the core body.

5. The vortex conversion valve core according to claim 1, characterized in that: The side flow channels are arranged in a plurality, and the plurality of side flow channels are evenly distributed in the core.

6. The vortex conversion valve core according to claim 1, characterized in that: The number of the side flow channels is six.

7. The vortex conversion valve core according to claim 1, characterized in that: The side flow channel is distributed on the vortex conversion valve core in a spiral shape, so that the air flow in the side flow channel has a tendency to flow toward the first air flow channel.

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