Gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus

A gas-liquid two-phase flow and generating device technology, which is applied in the direction of fluid mixers, mixers, inert gas generation, etc., can solve problems such as coordinated control, and achieve the effects of fast generation time and great application flexibility

Active Publication Date: 2016-04-20
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Abstract
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Problems solved by technology

[0007] The problem solved by the present invention is the problem that the existing technolog...

Method used

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  • Gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus
  • Gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus

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Embodiment Construction

[0021] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0022] see figure 1 ,, the gas-liquid two-phase flow hybrid low-temperature nitrogen jet generating device of the present invention includes a self-pressurized liquid nitrogen supply system 1, a high-pressure low-temperature hose 2, a reciprocating low-temperature booster pump 3, a normal temperature nitrogen supply system 4, a high-pressure normal temperature Hose 5, dry filter 6, inner mixing chamber 7, pressure gauge 8, shut-off valve 9, three-way valve 10 and nozzle 11.

[0023] read on figure 1, the self-pressurized liquid nitrogen supply system 1 is connected to the inlet of the reciprocating cryogenic booster pump 3 through a high-pressure resistant low-temperature hose 2 to generate low-pressure liquid nitrogen (≤0.1MPa) and deliv...

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Abstract

The present invention discloses a gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus, which comprises a self-pressurization liquid nitrogen supply system, a high-pressure-resistant low-temperature soft pipe, a reciprocating low-temperature pressurization pump, a room-temperature nitrogen gas supply system, a high-pressure-resistant room-temperature soft pipe, an inner mixing chamber, an interception valve, a three-way valve and a spraying nozzle, wherein the self-pressurization liquid nitrogen supply system outputs low-pressure liquid nitrogen, the low-pressure liquid nitrogen is pressurized through the reciprocating low-temperature pressurization pump, the obtained high-pressure liquid nitrogen is output to the inner mixing chamber, the room-temperature nitrogen gas supply system outputs room-temperature and high-pressure nitrogen gas and conveys the high-pressure nitrogen gas to the inner mixing chamber, the high-pressure liquid nitrogen and the room-temperature and high-pressure nitrogen gas form low-temperature nitrogen gas in the inner mixing chamber, and the low-temperature nitrogen gas is conveyed to the three-way valve and the spraying nozzle to form the low-temperature nitrogen gas jet flow. According to the present invention, the flow rates and the ratio of the low-temperature liquid nitrogen and the room-temperature nitrogen gas are controlled, such that the adjustable low-temperature nitrogen gas jet flow temperature from the room temperature to -196 DEG C can be achieved, and the jet flow pressure and the jet flow rate can be adjusted.

Description

technical field [0001] The invention relates to a low-temperature gas generator, in particular to a gas-liquid two-phase flow mixed low-temperature nitrogen jet generator. Background technique [0002] Entering the 21st century, advanced cutting technologies characterized by precision, high efficiency, low cost, and green, such as high-speed cutting, high-efficiency cutting, high-performance cutting, and powerful composite cutting, are being promoted and applied all over the world. However, during the cutting process, the high temperature, high pressure, and high-frequency impact of the tool / worker friction contact area pose severe challenges to the performance of the tool. The sharp wear of the tool is often a key factor restricting the application of advanced cutting technology. A large number of research and application examples show that reasonable and effective cooling and lubrication methods can improve the knife / worker friction state and inhibit tool wear, thereby imp...

Claims

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Application Information

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IPC IPC(8): B01F5/02B01F13/06B01J19/14B23Q11/10
Inventor 荆怀靖任斐张伟梁鑫光张余升唐春英汤骏杨天豪
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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