CN212397043U - Liquid vaporization device capable of controlling flow of working medium - Google Patents
Liquid vaporization device capable of controlling flow of working medium Download PDFInfo
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- CN212397043U CN212397043U CN202020742777.6U CN202020742777U CN212397043U CN 212397043 U CN212397043 U CN 212397043U CN 202020742777 U CN202020742777 U CN 202020742777U CN 212397043 U CN212397043 U CN 212397043U
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Abstract
The utility model discloses a can control working medium flow's liquid vapourizing unit, including flow controller and vaporization nozzle, flow controller adopts venturi structure, comprises choke, filler neck and thermal-insulated cotton, through the minimum cross-section diameter control flow of control choke. The nozzle adopts a fine hole injection structure and comprises two structures, wherein the first structure is composed of a first nozzle, a spray pipe and a first plug, the second structure is composed of a second nozzle, a second plug and a nozzle, and a liquid working medium is vaporized after passing through the fine hole in the spray pipe and the nozzle. In actual use, the working medium flow can be controlled by adopting different diameters of the throat pipes, and the vaporization effect of the working medium is controlled by increasing or decreasing the number of the pores on the spray pipe. The device is particularly suitable for cooling electronic equipment, and has better cooling effect compared with the conventional air cooling.
Description
Technical Field
The utility model belongs to the jet cooling equipment among aircraft environmental control system, the electronic cooling system relates to a liquid vaporization cooling injection apparatus that can control working medium flow, can be applied to the thermal management in fields such as space flight, boats and ships and electron.
Background
With the development of modern aviation technology, the electronization degree of aviation equipment is rapidly improved, and military wars step into the information and electronization era. In order to realize functions in the aspects of accurate striking, investigation, electronic countermeasures and the like, a large number of electronic devices are equipped. The electronic equipment is limited by environmental space, the integration level of the electronic equipment is high, the power is high, and the heat dissipation and cooling of the equipment become key factors for limiting the reliability of the electronic equipment. Spray cooling is a preferred technique for dissipating heat from electronic devices because of its high heat dissipation efficiency and uniform heat dissipation.
Disclosure of Invention
The utility model aims at providing a can control working medium flow's liquid vapourizing unit, control liquid working medium flow to make the ambient temperature who is used for the electronic equipment cabin behind the liquid nitrogen vaporization.
The utility model discloses a realize through following technical scheme:
a liquid vaporization device capable of controlling the flow of working medium comprises a flow controller and a vaporization nozzle;
the flow controller comprises a throat pipe, the inner cavity of the throat pipe penetrates through two end faces in the axial direction of the throat pipe and is respectively communicated with the connecting pipe mouths, and heat insulation cotton is arranged on the outer surface of the throat pipe and between the two connecting pipe mouths;
the vaporization nozzle is a first vaporization nozzle or a second vaporization nozzle;
the first gasification nozzle comprises a first nozzle, a spray pipe and a first plug, one end of the spray pipe is sleeved in the first nozzle, the other end of the spray pipe is connected with the first plug, and a first spray hole communicated with an inner cavity of the spray pipe is formed in the surface of the spray pipe;
the second gasification nozzle contains second mouthpiece, second end cap and nozzle, and the nozzle cup joints in the second mouthpiece, and the cup joint position department of nozzle and second mouthpiece has an annular gap, annular gap and second mouthpiece inner chamber intercommunication, and the surface machining who just is located the nozzle in the annular gap has along week feed liquor hole, and the inlet communicates with the inner chamber of nozzle, is located to offer the second jet orifice with nozzle inner chamber intercommunication on the nozzle end face in the second mouthpiece outside, and the nozzle end face that is located in the second mouthpiece links to each other with the second end cap.
Further, the minimum section diameter of the inner cavity of the throat pipe corresponds to the flow of the flow controller one by one.
Preferably, the minimum section diameters of the throat pipe of the flow controller are respectively phi 0.8mm, phi 1.0mm and phi 1.5mm, and the minimum section diameters respectively correspond to the working medium flow of 7kg/h, 15kg/h and 36 kg/h.
Preferably, the total number of the first injection holes on the surface of the spray pipe is 112, the first injection holes are distributed on a plurality of section circumferences perpendicular to the axis of the spray pipe, the first injection holes on the same section circumference are arranged at equal intervals, and the aperture of each first injection hole is phi 0.5 mm.
Preferably, the diameter of the second injection hole on the end surface of the nozzle is phi 1.5mm, and the diameter of the liquid inlet hole on the surface of the nozzle along the circumference is phi 1.0 mm.
Preferably, the connecting nozzle is vacuum electron beam welded to the throat.
Preferably, the metal foil is wrapped on the outer side of the heat insulation cotton and then fixed on the throat pipe through spot welding.
Preferably, the first nozzle, the spray pipe and the first plug are connected by vacuum electron beam welding.
Preferably, the outer contour of the nozzle is in a stepped cylinder shape and comprises a first cylindrical surface forming an annular gap with the inner cavity of the second nozzle, a second cylindrical surface attached to the inner cavity wall of the second nozzle and an annular surface attached to the end face of the second nozzle, and the second cylindrical surface is connected with the annular surface.
Preferably, the connecting nozzle, the first nozzle and the second nozzle are provided with connecting threads on the surfaces.
Compared with the prior art, the utility model designs a flow control structure for the flow of accurate control liquid vaporization has designed the vaporization nozzle of two kinds of different forms respectively according to the difference of vaporization effect and space dimension demand (length), satisfies the requirement that liquid vaporization and vaporization cooling sprayed.
The utility model discloses a flow control realizes through the choke, and minimum cross-section diameter and flow one-to-one increase thermal-insulated cotton on the choke surface, keeps warm thermal-insulated to the working medium, and the vaporization nozzle carries out liquid vaporization through the pore of spray tube or nozzle, and the vaporization effect can be adjusted through the diameter in the hole of spray tube and the aperture of quantity or nozzle.
Drawings
FIG. 1 is a schematic structural diagram of a middle flow controller according to the present invention;
FIG. 2 is a schematic structural view of a first vaporizing nozzle of the present invention;
FIG. 3 is a schematic structural view of a second vaporizing nozzle of the present invention;
FIG. 4 is a schematic cross-sectional view of a nozzle of the first vaporizing nozzle;
FIG. 5 is a schematic cross-sectional view of a second vaporizing nozzle.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of protection claimed is not limited thereto.
The liquid vaporization device capable of controlling the flow of the working medium in the embodiment comprises a flow controller and two vaporization nozzles with different structures, wherein the flow controller is positioned in front of the vaporization nozzles to control the flux of the working medium, and the working medium is jetted out from a fine hole (a jet hole) after passing through the vaporization nozzles, is vaporized at the same time and is used for cooling the ambient temperature.
The flow controller in the embodiment adopts a venturi structure, controls the flow of the working medium by designing the drift diameter size of the minimum section, and wraps the heat insulation cotton 2 on the surface of the throat pipe 3 to prevent the working medium at the inlet of the nozzle from having high temperature due to heat exchange when low-temperature liquid passes through.
The vaporization nozzle is designed with 2 structures, can be freely combined according to technical requirements during actual use, and can effectively prevent the dissociative liquid working medium from being directly sprayed on the surface of equipment by mainly controlling the vaporization effect through the aperture sizes on the spray pipe 5 and the nozzle 9.
A throat pipe 3 and a connecting pipe nozzle 1 in the flow controller are welded by vacuum electron beams, heat insulation cotton 2 is wrapped on the surface of the throat pipe 3 through metal foil and fixed by spot welding, and a flow direction mark is marked on the outer surface.
The first vaporizing nozzle comprises a first nozzle 4, a spray pipe 5 and a first plug 6, and vacuum electron beam welding is adopted between the spray pipe 5 and the first plug 6 and between the spray pipe 5 and the first nozzle 4.
Preferably, the diameters of the minimum flow cross sections of the throat pipes 3 in the flow controller are respectively phi 0.8mm, phi 1.0mm and phi 1.5 mm;
preferably, the diameter of the first spray hole of the first vaporizing nozzle is phi 0.5 mm;
preferably, the nozzle 9 of the second gasification nozzle adopts circumferential liquid inlet, the diameter of a liquid inlet hole is phi 1.0mm, and the diameter of a second spray hole is phi 1.5 mm.
As shown in FIG. 1, the minimum section diameter of the throat 3 of the flow controller is designed according to the flow index, and two cones are respectively arranged at two ends of the minimum section. According to the connection requirement in the system, the structure of the connecting nozzle 1 is designed, and the connecting nozzle 1 and the throat 3 are welded together by adopting vacuum electron beam welding. The surface of the throat pipe 3 is wrapped with heat insulation cotton 2, and is fixed by spot welding after being wrapped with metal foil, and a flow arrow is marked on the surface of the metal foil by adopting a laser marking mode.
As shown in fig. 2 to 5, the spray hole diameters and the number of spray holes of the nozzle 5 and the nozzle 9 of the first and second vaporizing nozzles are designed according to the spray flow rate. The first nozzle 4 and the second nozzle 7 are designed according to the connection requirements in the system, the first nozzle 4 and the spray pipe 5, the spray pipe 5 and the first plug 6 are welded together by adopting vacuum electron beam welding, and the second nozzle 7 and the nozzle 9, the second plug 8 and the nozzle 9 are welded together by adopting vacuum electron beam welding.
As shown in fig. 2 and 4, 112 first spraying holes are designed on the spraying pipe 5 of the first vaporizing nozzle, the diameter of each hole is phi 0.5mm, the holes are arranged along the circumference of 16, and 7 rows are arranged along the length direction, so that the liquid working medium is completely vaporized after passing through the first spraying holes.
As shown in fig. 3 and 5, the nozzle 9 of the second vaporizing nozzle adopts single-hole injection, the inner cavity of the nozzle 9 comprises a cylindrical cavity at the inlet end and a 90-degree conical cavity at the outlet end, 3 liquid inlet holes with the diameter of 1.0mm are designed on the cylindrical cavity at the inlet end along the circumferential direction, the small section end of the conical cavity at the outlet end is communicated with the second jetting hole, and the diameter of the second jetting hole is 1.5mm, so that the working medium is completely vaporized after passing through the second jetting hole. The outer contour of the nozzle 9 is in a stepped cylinder shape, and comprises a first cylindrical surface forming an annular gap with the inner cavity of the second nozzle 7, a second cylindrical surface attached to the inner cavity wall of the second nozzle 7 to realize plugging and positioning, and an annular surface attached to the end surface of the second nozzle 7 to realize sealing connection and positioning, wherein the second cylindrical surface is connected with the annular surface to form a step.
Claims (10)
1. A liquid vaporization device capable of controlling flow of working medium is characterized in that: comprises a flow controller and a vaporizing nozzle;
the flow controller comprises a throat pipe (3), the inner cavity of the throat pipe (3) penetrates through two end faces in the axial direction of the throat pipe and is respectively communicated with the connecting pipe nozzles (1), and heat insulation cotton (2) is arranged on the outer surface of the throat pipe (3) and between the two connecting pipe nozzles (1);
the vaporization nozzle is a first vaporization nozzle or a second vaporization nozzle;
the first gasification nozzle comprises a first nozzle (4), a spray pipe (5) and a first plug (6), one end of the spray pipe (5) is sleeved in the first nozzle (4), the other end of the spray pipe (5) is connected with the first plug (6), and a first spray hole communicated with an inner cavity of the spray pipe (5) is formed in the surface of the spray pipe (5);
the second gasification nozzle contains second mouthpiece (7), second end cap (8) and nozzle (9), nozzle (9) cup joint in second mouthpiece (7), and there is an annular gap nozzle (9) and the cup joint position department of second mouthpiece (7), annular gap and second mouthpiece (7) inner chamber intercommunication, the surface machining who just is located nozzle (9) in the annular gap has along week feed liquor hole, the inlet communicates with the inner chamber of nozzle (9), be located nozzle (9) the outside of second mouthpiece (7) on the terminal surface set up the second jet orifice with nozzle (9) inner chamber intercommunication, nozzle (9) terminal surface that is located second mouthpiece (7) links to each other with second end cap (8).
2. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the minimum section diameter of the inner cavity of the throat pipe (3) corresponds to the flow of the flow controller one by one.
3. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 2, wherein: the minimum section diameters of the throat pipe (3) of the flow controller are respectively phi 0.8mm, phi 1.0mm and phi 1.5mm, and the minimum section diameters respectively correspond to the working medium flow of 7kg/h, 15kg/h and 36 kg/h.
4. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the total number of the first injection holes on the surface of the spray pipe (5) is 112, the first injection holes are distributed on a plurality of section circumferences perpendicular to the axis of the spray pipe (5), the first injection holes on the same section circumference are arranged at equal intervals, and the aperture of each first injection hole is phi 0.5 mm.
5. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the diameter of a second spray hole on the end face of the nozzle (9) is phi 1.5mm, and the diameter of a liquid inlet hole on the surface of the nozzle (9) along the periphery is phi 1.0 mm.
6. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the connecting pipe nozzle (1) is welded with the throat pipe (3) by vacuum electron beams.
7. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: and the outer side of the heat insulation cotton (2) is wrapped by metal foil and then fixed on the throat pipe (3) through spot welding.
8. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the first nozzle (4), the spray pipe (5) and the first plug (6) are connected through vacuum electron beam welding.
9. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: the outer contour of the nozzle (9) is in a stepped cylinder shape and comprises a first cylindrical surface forming an annular gap with the inner cavity of the second nozzle (7), a second cylindrical surface attached to the inner cavity wall of the second nozzle (7) and an annular surface attached to the end face of the second nozzle (7), wherein the second cylindrical surface is connected with the annular surface.
10. The liquid vaporization device capable of controlling the flow rate of the working medium according to claim 1, wherein: and the surfaces of the connecting nozzle (1), the first nozzle (4) and the second nozzle (7) are processed with connecting threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020742777.6U CN212397043U (en) | 2020-05-08 | 2020-05-08 | Liquid vaporization device capable of controlling flow of working medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020742777.6U CN212397043U (en) | 2020-05-08 | 2020-05-08 | Liquid vaporization device capable of controlling flow of working medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212397043U true CN212397043U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020742777.6U Active CN212397043U (en) | 2020-05-08 | 2020-05-08 | Liquid vaporization device capable of controlling flow of working medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212397043U (en) |
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2020
- 2020-05-08 CN CN202020742777.6U patent/CN212397043U/en active Active
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