CN110618165A - Spray cooling multi-process parameter test device - Google Patents
Spray cooling multi-process parameter test device Download PDFInfo
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- CN110618165A CN110618165A CN201911061452.XA CN201911061452A CN110618165A CN 110618165 A CN110618165 A CN 110618165A CN 201911061452 A CN201911061452 A CN 201911061452A CN 110618165 A CN110618165 A CN 110618165A
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- nozzle
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- spray cooling
- outer plate
- adjusting part
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
Abstract
The invention relates to a spray cooling multi-process parameter test device which comprises a water tank, a spray pipeline, a nozzle, a temperature adjusting part, a pressure adjusting part and a nozzle adjusting part, wherein the temperature adjusting part consists of a temperature sensor and a heating resistor, and the pressure adjusting part consists of a pressure sensor, a frequency converter, a servo motor and a water pump; the nozzle adjusting and adjusting part consists of a supporting base, a lead screw supporting table, a sliding table, a nozzle fixing plate and a transparent test bed, and an infrared camera is arranged in the transparent test bed. The spray cooling multi-process parameter test device can adjust the temperature of a spray medium, the spray pressure, the spray height, the caliber of a nozzle and the spray angle, and overcomes the defects that a plurality of process parameters of a spray cooling test cannot be controlled simultaneously and the precision is low; the infrared camera can obtain the heat transfer change of the spray surface of the test piece, and research the spray cooling heat transfer law under different process parameters, which has great practical significance for promoting the scientific and engineering application of spray cooling.
Description
Technical Field
The invention relates to a spray cooling multi-process parameter test device, in particular to a spray cooling multi-process parameter test device capable of adjusting medium temperature, spray pressure, spray height, nozzle caliber and spray angle.
Background
Spray Cooling (Spray Cooling) is an advanced controllable rapid Cooling technology, and the principle of the Spray Cooling technology is that water is pressurized to form a liquid drop beam to impact a cooled object, a layer of gas-liquid film is formed on the surface of the object, heat is taken away to achieve the purpose of Cooling, and a solid conical nozzle is often adopted in engineering. The technology has the advantages of high heat transfer capacity, small temperature difference in the cooling process, small working medium demand, no boiling hysteresis, no contact heat with the solid surface and the like, improves the uneven cooling state and stress distribution of the traditional bath cooling, provides an effective technical approach for regulating and controlling different cooling rates, and has wide application prospects in the fields of high-temperature metal cooling, metal cutting, high heat flow density electronic device cooling, laser medical treatment, large radar, micro-gravity environment cooling and the like.
Due to the advancement of the production process, the modern spray cooling technology has become a high point of the technology struggling against in developed countries such as Europe and America. However, modern spray cooling technology relates to disciplinary knowledge of heat transfer science, thermo-elastoplasticity mechanics, chemical thermodynamics and the like, and is a multidisciplinary cross and multi-field coupled highly knowledge-intensive technology. So far, the heat exchange mechanism of the spray cooling process has not been completely recognized compared with the bath cooling method. In spray cooling, technological parameters influencing heat transfer are complex and changeable, and water temperature, spray distance, spray pressure, spray angle and the like can influence spray cooling heat transfer, so that a test device suitable for multiple spray technological parameters is urgently needed to be developed in engineering, and the requirements of engineering and scientific research are met. At present, a test device considering multiple spraying process parameters does not exist, and the technical research and development of the modern spraying cooling technology are severely limited.
Disclosure of Invention
In order to overcome the defects of the technical problems, the invention provides a spray cooling multi-process parameter test device which can adjust the temperature of a medium, the spray pressure, the spray height, the caliber of a nozzle and the spray angle.
The invention relates to a spray cooling multi-process parameter test device, which comprises a water tank, a spray pipeline, a nozzle, a temperature adjusting part, a pressure adjusting part and a nozzle adjusting part, wherein spray cooling media are stored in the water tank, a water inlet of the spray pipeline is positioned in the water tank, and a water outlet of the spray pipeline is connected with the nozzle; the method is characterized in that: the temperature adjusting part consists of a temperature sensor and a heating resistor, the heating resistor is arranged at the bottom of the water tank and used for heating a medium, and the temperature sensor measures the temperature of the medium; the pressure adjusting part consists of a pressure sensor, a frequency converter, a servo motor and a water pump, wherein the water pump and the pressure sensor are arranged on the spraying pipeline, the servo motor is used for driving the water pump to work, and the frequency converter controls the servo motor by detecting an output signal of the pressure sensor;
the nozzle adjusting and adjusting part consists of a supporting base, a screw rod supporting table, a sliding table, a nozzle fixing plate and a transparent test bed, wherein the screw rod supporting table is fixed on the supporting base in the vertical direction; the nozzle fixing plate is fixed on the sliding table, and an elastic buckle for fixing the nozzle is fixed on the sliding table; the transparent test bed is positioned on the supporting base, the to-be-tested piece is arranged on the transparent test bed, and an infrared camera for collecting temperature images of the to-be-tested piece is arranged in the transparent test bed.
The spray cooling multi-process parameter test device comprises an elastic buckle, a spray cooling device and a spray cooling device, wherein the elastic buckle consists of a left outer plate, a right outer plate, a left inner plate and a right inner plate, the outer walls of the left outer plate and the right outer plate are fixed on a nozzle fixing plate, the left inner plate and the right inner plate are respectively positioned at the inner sides of the left outer plate and the right outer plate, a cavity for clamping a nozzle is formed between the left inner plate and the right inner plate, and the left outer plate and the left inner plate, the right outer plate and the right inner plate are connected through a plurality of springs; the upper ends of the left outer plate and the right outer plate are provided with first nozzle adjusting bolts, and the lower ends of the left outer plate and the right outer plate are provided with second nozzle adjusting bolts.
According to the spray cooling multi-process parameter testing device, a bottom valve is arranged on a water inlet of a spray pipeline, the bottom valve is located in a water tank, a first regulating valve is arranged on the spray pipeline between the bottom valve and a water pump, and a second regulating valve is arranged on the spray pipeline close to a nozzle.
According to the spray cooling multi-process parameter test device, a pressure gauge and a pressure tank are arranged on the spray pipeline between the first regulating valve and the second regulating valve.
According to the spray cooling multi-process parameter testing device, the water tank is provided with the heat insulation layer, and the inner wall of the water tank is provided with the anti-oxidation rust coating.
According to the spray cooling multi-process parameter testing device, the graduated scale for measuring and calibrating the height from the nozzle to the piece to be tested is fixed on the screw rod supporting table.
According to the spray cooling multi-process parameter testing device, the upper end of the lead screw is fixed with the crank handle for adjusting the height of the nozzle.
The spray cooling multi-process parameter test device comprises a heating furnace for heating a piece to be tested.
The invention has the beneficial effects that: according to the spray cooling multi-process parameter test device, the temperature of the spray medium is adjusted by arranging the heating resistor and the water tank on the temperature sensor; the pressure sensor, the frequency converter, the servo motor and the water pump are arranged, so that the pressure of the medium sprayed out through the nozzle is adjusted; the part is adjusted to the nozzle that includes lead screw, slip table, nozzle fixed plate and elastic buckle through the setting, and the nozzle of different diameters all can be fixed in the elastic buckle on, has realized the regulation of nozzle bore, utilizes the rotation of lead screw to order about the nozzle and follows the slip table and go up and down together, has realized the regulation to spraying height, and elastic buckle still can adjust the orientation of nozzle simultaneously, has realized the regulation of spraying the angle.
Therefore, the spray cooling multi-process parameter test device provided by the invention overcomes the defects that a plurality of process parameters of a spray cooling test cannot be controlled simultaneously and the precision is not high; in spray cooling, a plurality of cooling media can be replaced for research, so that one machine has multiple purposes; the test piece to be tested that equipment used cooperates with infrared camera, can be convenient ask the test piece to spray the heat transfer change of face, to spraying cooling heat transfer law under the different technological parameter study, this to promote spraying cooling's science, engineering application have important practical meaning.
Drawings
FIG. 1 is a schematic structural diagram of a spray cooling multi-process parameter testing device of the present invention;
fig. 2 is a partial enlarged view of the area of the nozzle of fig. 1.
In the figure: 1 temperature sensor, 2 heating resistors, 3 water tanks, 4 bottom valves, 5 first regulating valves, 6 water pumps, 7 pressure gauges, 8 pressure tanks, 9 pressure sensors, 10 frequency converters, 11 servo motors, 12 second regulating valves, 13 hand cranks, 14 lead screw supporting tables, 15 lead screws, 16 first fixing bolts, 17 supporting bottom plates, 18 infrared cameras, 19 high-transmittance infrared quartz glass, 20 pieces to be tested, 21 heating furnaces, 22 sliding tables, 23 second fixing bolts, 24 nozzle fixing plates, 25 nozzle first regulating bolts, 26 nozzle second regulating bolts, 27 elastic buckles, 28 nozzles, 29 left outer plates, 30 right outer plates, 31 left inner plates, 32 right inner plates, 33 springs and 34 spraying pipelines.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, a schematic structural diagram of the spray cooling multi-process parameter testing device of the present invention is provided, which is composed of a water tank 3, a spray pipeline 34, a nozzle 28, a transparent test bed, a temperature adjusting part, a pressure adjusting part and a nozzle adjusting part, wherein the water tank 3 is used for storing a medium for spray cooling, and in order to realize a heat preservation function, a heat preservation layer can be arranged on the water tank 3; an anti-oxidation rust-forming coating can also be provided on the inner wall of the water tank 3. The inlet of the spray pipe 34 is connected to the inside of the water tank 3, the outlet is connected to the nozzle 28, and a bottom valve 4 may be provided at the inlet of the spray pipe 34 to facilitate the extraction of the spray medium. The temperature adjusting part is composed of a temperature sensor 1 and a heating resistor 2, the temperature sensor 1 measures the temperature of the medium in the water tank 3, the heating resistor 2 is used for heating the medium in the water tank 3, and when the temperature sensor 1 detects that the temperature in the water tank 3 is lower than a set value, the heating resistor 2 is started to heat the medium until the temperature of the medium reaches the set temperature. The spraying pipeline 34 at the water inlet is provided with a first regulating valve 5 to control the flow rate, so that the temperature can be accurately controlled. The medium temperature adjusting range that the temperature adjusting part can realize is as follows: room temperature-boiling point of the medium.
The pressure adjusting part consists of a pressure sensor 9, a frequency converter 10, a servo motor 11 and a water pump 6, the water pump 6 and the pressure sensor 9 are sequentially arranged on the spraying pipeline 34 according to the flow direction of a medium, the pressure sensor 9 is used for measuring the pressure of the medium in the spraying pipeline 34, the frequency converter 10 is used for controlling the rotating speed of the servo motor 11, and the servo motor 11 is used for driving the water pump 6 to work. Thus, through the measurement of the spraying pressure by the pressure sensor 9, when the spraying pressure of the medium is smaller than a set value, the frequency converter 10 increases the rotating speed of the servo motor 11 to increase the spraying pressure; when the spraying medium is smaller than the set value, the rotating speed of the servo motor 11 is reduced, and the spraying pressure is reduced to ensure that the spraying pressure is equal to the set value. The spraying pipeline 34 close to the medium water outlet is provided with a second regulating valve 12, and the accurate control of the spraying pressure can be realized through the control of the flow rate by the second regulating valve 12. The spray pipe 34 is also connected with a pressure tank 8, and the pressure tank 8 stores pressure medium, so that the stability of the spray pressure is maintained. The spray pipe 34 is also provided with a pressure gauge 7, so that the tester can conveniently obtain the pressure value in the spray pipe 34.
The nozzle adjusting part shown comprises a supporting bottom plate 17, a screw supporting platform 14, a screw 15, a crank 13, a sliding table 22, a nozzle fixing plate 24 and a nozzle 28, wherein the supporting bottom plate 17 plays a role in fixing and supporting, the supporting bottom plate can be placed on the ground or a workbench, the screw supporting platform 14 is fixed on the supporting bottom plate 17 in the vertical direction, the lower end of the screw 15 is rotatably arranged on the supporting bottom plate 17, and the upper end of the screw 15 is rotatably arranged at the upper end of the screw supporting platform 14. The lower end of the threaded spindle 15 ensures that its rotatable perforated or bearing plate is fixed to a support base plate 17 via a first fixing bolt 16.
The shown sliding table 22 is arranged on the screw rod 15 through a nut, one end face of the sliding table 22 is abutted to the screw rod supporting table 14, and the upper end of the screw rod 15 is fixed with the crank 13, so that in the process of driving the screw rod 15 to rotate by utilizing the crank 13, the sliding table 22 cannot rotate due to the limitation of the screw rod supporting table 14 on the sliding table 22, and only can ascend and descend along the screw rod 15. The nozzle fixing plate 24 is shown fixed to the slide table 22 via a second fixing bolt 23, and an elastic clip 27 is fixed to the nozzle fixing plate 24, the elastic clip 27 being used to fix the nozzle 28. Thus, the hand crank 13 rotates the screw rod 15 to drive the nozzle 28 to move up and down, so as to realize the adjustment of the spraying height.
The transparent test bed is placed on the supporting bottom plate 17, the to-be-tested piece 20 is placed on the transparent test bed, the to-be-tested piece 20 is located below the spray nozzle 28, the infrared camera 18 for collecting an infrared temperature image of the to-be-tested piece 20 is arranged in the transparent test bed, the transparent test bed can adopt high-transmittance infrared quartz glass 19, heat transfer change of a spray surface of the test piece can be conveniently solved through collected temperature pattern change of the to-be-tested piece 20 under spray cooling, and spray cooling heat transfer rules under different process parameters are researched.
As shown in fig. 2, which shows a partial enlarged view of the area where the nozzle is located in fig. 1, the elastic clip 27 is composed of a left outer plate 29, a right outer plate 30, a left inner plate 31 and a right inner plate 32, the left outer plate 29, the right outer plate 30, the left inner plate 31 and the right inner plate 32 can all be in a flat plate shape or a circular arc sheet shape, the outer wall of the left outer plate 29 and the outer wall of the right outer plate 30 are fixed on the nozzle fixing plate 24, the left inner plate 31 is located on the inner side of the left outer plate 29, the right inner plate 32 is located on the inner side of the right outer plate 30, and a cavity for clamping the nozzle 28 is formed between. The left outer plate 29 is connected with the left inner plate 31 through a plurality of transverse springs 33 in a compressed state, and the right outer plate 30 is connected with the right inner plate 32 through a plurality of springs 33 in a compressed state, so that the nozzle 28 placed between the left inner plate 31 and the right inner plate 32 can be clamped under the action of the springs 33, clamping of different nozzle calibers is realized, and the size of the nozzle calibers is adjusted.
The upper parts of the left outer plate 29 and the right outer plate 30 are provided with first nozzle adjusting bolts 25, the lower parts of the left outer plate 29 and the right outer plate 30 are provided with second nozzle adjusting bolts 26, the first adjusting bolts 25 and the second adjusting bolts 26 penetrate through the left outer plate 29 or the right outer plate 30, and the front ends of the first adjusting bolts 25 and the second adjusting bolts are abutted against the left inner plate 31 or the right inner plate 32. By varying the screwing lengths of the first and second adjusting bolts 25, 26, the spray angle of the spray nozzle 28 can be adjusted. As shown in fig. 2, if the first adjusting bolt 25 of the nozzle on the right outer plate 30 is screwed out to the right, the first adjusting bolt 25 of the nozzle on the left outer plate 29 is screwed in to the right, the second adjusting bolt 26 of the nozzle on the left outer plate 29 is screwed out to the left, and the second adjusting bolt 26 of the nozzle on the right outer plate 30 is screwed in to the left, the nozzle 28 of the vertical turntable can be driven to rotate clockwise by a certain angle, and the change of the spraying angle is realized.
Claims (8)
1. A spray cooling multi-process parameter test device comprises a water tank (3), a spray pipeline (34), a nozzle (28), a temperature adjusting part, a pressure adjusting part and a nozzle adjusting part, wherein spray cooling media are stored in the water tank, a water inlet of the spray pipeline is positioned in the water tank, and a water outlet of the spray pipeline is connected with the nozzle; the method is characterized in that: the temperature adjusting part consists of a temperature sensor (1) and a heating resistor (2), the heating resistor is arranged at the bottom of the water tank and used for heating a medium, and the temperature sensor measures the temperature of the medium; the pressure adjusting part consists of a pressure sensor (9), a frequency converter (10), a servo motor (11) and a water pump (6), wherein the water pump and the pressure sensor are arranged on the spray pipeline, the servo motor is used for driving the water pump to work, and the frequency converter controls the servo motor by detecting an output signal of the pressure sensor;
the nozzle adjusting and adjusting part consists of a supporting base (17), a screw rod (15), a screw rod supporting table (14), a sliding table (22), a nozzle fixing plate (24) and a transparent test bed, wherein the screw rod supporting table is fixed on the supporting base in the vertical direction, the upper end and the lower end of the screw rod are respectively and rotatably arranged on the upper end of the screw rod supporting table and the supporting base, and the sliding table is arranged on the screw rod through a nut; the nozzle fixing plate is fixed on the sliding table, and an elastic buckle (27) for fixing the nozzle (28) is fixed on the sliding table; the transparent test bed is positioned on the supporting base, a to-be-tested piece (20) is arranged on the transparent test bed, and an infrared camera (18) for collecting a temperature image of the to-be-tested piece is arranged in the transparent test bed.
2. The spray cooling multi-process parameter testing device according to claim 1, characterized in that: the elastic buckle (27) consists of a left outer plate (29), a right outer plate (30), a left inner plate (31) and a right inner plate (32), the outer walls of the left outer plate and the right outer plate are fixed on the nozzle fixing plate (24), the left inner plate and the right inner plate are respectively positioned at the inner sides of the left outer plate and the right outer plate, a cavity for clamping the nozzle (28) is formed between the left inner plate and the right inner plate, and the left outer plate and the left inner plate and the right outer plate and the right inner plate are connected through a plurality of springs (33) in a compressed state; the upper ends of the left outer plate and the right outer plate are respectively provided with a first nozzle adjusting bolt (25), and the lower ends of the left outer plate and the right outer plate are respectively provided with a second nozzle adjusting bolt (26).
3. The spray cooling multi-process parameter testing device according to claim 1 or 2, characterized in that: a bottom valve (4) is arranged on a water inlet of the spraying pipeline (34), the bottom valve is positioned in the water tank (3), a first regulating valve (5) is arranged on the spraying pipeline between the bottom valve and the water pump (6), and a second regulating valve (12) is arranged on the spraying pipeline (34) close to the nozzle (28).
4. The spray cooling multi-process parameter testing device according to claim 3, characterized in that: and a pressure gauge (7) and a pressure tank (8) are arranged on the spraying pipeline (34) between the first regulating valve (5) and the second regulating valve (12).
5. The spray cooling multi-process parameter testing device according to claim 1 or 2, characterized in that: the water tank (3) is provided with a heat preservation layer, and the inner wall of the water tank is provided with an anti-oxidation rust coating.
6. The spray cooling multi-process parameter testing device according to claim 1 or 2, characterized in that: and a graduated scale for measuring and calibrating the height of the nozzle (28) from the piece to be tested (20) is fixed on the screw support platform (14).
7. The spray cooling multi-process parameter testing device according to claim 1 or 2, characterized in that: and a hand crank (13) for adjusting the height of the nozzle (28) is fixed at the upper end of the screw rod (15).
8. The spray cooling multi-process parameter testing device according to claim 1 or 2, characterized in that: comprises a heating furnace (21) for heating a test piece (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911061452.XA CN110618165A (en) | 2019-11-01 | 2019-11-01 | Spray cooling multi-process parameter test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911061452.XA CN110618165A (en) | 2019-11-01 | 2019-11-01 | Spray cooling multi-process parameter test device |
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| Publication Number | Publication Date |
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| CN110618165A true CN110618165A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911061452.XA Pending CN110618165A (en) | 2019-11-01 | 2019-11-01 | Spray cooling multi-process parameter test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114816014A (en) * | 2022-06-01 | 2022-07-29 | 兰洋(宁波)科技有限公司 | Self-adaptive multi-mode cooling system |
-
2019
- 2019-11-01 CN CN201911061452.XA patent/CN110618165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114816014A (en) * | 2022-06-01 | 2022-07-29 | 兰洋(宁波)科技有限公司 | Self-adaptive multi-mode cooling system |
| CN114816014B (en) * | 2022-06-01 | 2024-02-02 | 兰洋(宁波)科技有限公司 | Self-adaptive multi-mode cooling system |
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