CN111701768B - Adjustable slit jet nozzle - Google Patents
Adjustable slit jet nozzle Download PDFInfo
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- CN111701768B CN111701768B CN202010534708.0A CN202010534708A CN111701768B CN 111701768 B CN111701768 B CN 111701768B CN 202010534708 A CN202010534708 A CN 202010534708A CN 111701768 B CN111701768 B CN 111701768B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
- B05B1/044—Slits, i.e. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Nozzles (AREA)
Abstract
The invention provides an adjustable slit jet nozzle, and belongs to the field of heat treatment of metal plates and strips. The nozzle comprises four parts, namely a water inlet device, a flow equalizing water collecting tank, a gap adjusting device and an adjusting mechanism; the water inlet device and the flow equalizing water collecting tank adopt multi-path flow division, multiple damping and reinforced structural design to realize uniform water spraying and deflection deformation prevention; the gap adjusting device realizes high-precision expansion or contraction adjustment of the water spraying gap through bolt adjustment; the adjusting mechanism accurately and quickly adjusts the main mechanical parameters of the slit jet nozzle such as height, levelness, parallelism, jet angle and the like. The invention greatly improves the adjustment precision of the main mechanical parameters of the slit jet nozzle, shortens the adjustment time by more than 2 times, prolongs the service life of the nozzle by more than 1 time, and realizes the high-uniformity, high-flatness and high-efficiency heat treatment of the metal plate strip.
Description
Technical Field
The invention belongs to the field of heat treatment of metal plates and strips, and relates to an adjustable slit jet nozzle.
Background
The heat treatment is a key process for improving the comprehensive performance of the metal plate strip, and particularly has obvious effects on improving the toughness, corrosion resistance, abrasion resistance, high-temperature performance, fatigue performance, processability and the like. The metal plate strips subjected to heat treatment are various (such as plain carbon steel, stainless steel, aluminum alloy, titanium alloy, high-temperature alloy and the like), the specification span is large (the thickness is 2-300 mm, the width is 800-5000 mm), and the heat treatment process is complex (such as normalizing, tempering, solid solution, quenching, controlled cooling, weak water cooling and the like). The cooling is an important heat treatment process link of the metal plate strip, and different cooling speeds and cooling paths are designed and controlled, so that the microstructure of the metal plate strip can be obviously improved, and more excellent performance can be obtained.
In the cooling process, the cooling speed and the cooling uniformity are important technical parameters, directly influence the metalworking processes of heat treatment phase change, solid solution, precipitation and the like of the metal plate strip, and determine the final performance and the plate shape of the metal plate strip. When the metal plate strip is subjected to heat treatment and cooling, the wall surface of the high-temperature plate strip is contacted with a cooling medium, and various heat exchange modes such as single-phase forced jet heat exchange, in-pool boiling heat exchange, gas-liquid mixed heat exchange and the like are formed based on different cooling nozzle types. The single-phase forced jet heat exchange has high efficiency, good uniformity, large cooling speed regulation range and strong controllability, and gradually becomes a preferred heat treatment cooling heat exchange mode.
The slit jet nozzle is one of main nozzle types for realizing single-phase forced jet on the wall surface of the high-temperature metal plate strip, the water outlet of the nozzle is in the shape of a long and narrow slit, a cooling medium with certain pressure and flow enters the multilayer damping box body from a plurality of water inlets, and after flow equalization, the cooling medium is obliquely jetted to the upper wall surface and the lower wall surface of the high-temperature metal plate strip at a certain angle through the long and narrow slit. The slit jet nozzle has the following advantages: firstly, the cooling medium is continuously jetted, the wall surface of the metal plate strip has no cooling soft points, and the cooling uniformity is good; secondly, the cooling capacity is high, and the wall surface heat flux density is more than 2 times of that of the traditional circular hole jet flow and more than 4-5 times of that of the boiling heat exchange in the pool; and the cooling speed adjusting range is large, and stepless adjustment of the high-temperature metal plate strip within the large cooling speed range of 1-300 ℃/s can be realized.
Although the slit jet nozzle has the advantages of high cooling speed and high cooling uniformity, the following problems exist in the use process: the nozzle has a complex structure and high mechanical precision requirement, and is difficult to finely adjust the main mechanical parameters such as the height, the levelness, the parallelism, the jet angle, the gap width and the like of the nozzle due to the lack of an effective adjusting mechanism, so that the adjusting and optimizing process is complicated, and time and labor are wasted; secondly, along with the widening of the nozzle (increasing to 5m or more), the mechanical strength of the nozzle in the width direction needs to be improved, and the nozzle on the wall surface deforms in the width direction to influence the cooling uniformity; and the width of the slit is small (1.5-3.0 mm), the slit is easy to block, and jet flow breakpoints are generated. The above problems limit the use and maintenance of slit jet nozzles.
In the prior art, chinese patent application (publication No. CN2669993Y) discloses a planar jet nozzle for cooling metal plate and strip, which generates a gas jet from a gas jet slit and a liquid jet from a liquid jet slit, synthesizes a composite jet at a certain angle and sprays the composite jet from a working slit to obtain a required planar jet cooling water curtain or planar gas atomization jet type cooling water mist, and cools the metal plate and strip. The invention of the utility model is a mixing nozzle structure, and cooling medium, nozzle form, invention content and the like are irrelevant to the invention.
The Chinese patent application (publication No. CN108180816A) discloses a method for rapidly measuring a slit nozzle of a quenching machine, which is characterized in that jet flow traces of the slit nozzle are observed by means of square wood coated with red lubricating oil, and the jet flow angle of the slit nozzle is measured. The method is influenced by water flow fluctuation, trace error, square timber position error and the like, and the adjustment precision is limited. The invention designs the angle scale, directly obtains the jet angle through mechanical angle measurement, has direct parameter acquisition, convenient adjustment and high precision, and has larger difference with the invention.
Chinese patent application (publication No. CN205115546U) discloses a special tool for quenching and tempering a slit nozzle, which is used for positioning the slit nozzle. The tool only has a measuring function, cannot complete a mechanical parameter adjusting function, and is irrelevant to the adjustable slit jet nozzle.
Disclosure of Invention
Aiming at the problems that the slit jet nozzle for cooling and heat treatment of the existing metal plate and strip is difficult to adjust mechanical parameters, low in precision, easy to bend and deform in the width direction of an ultra-wide nozzle and the like, the invention provides the adjustable slit jet nozzle which can realize accurate, rapid and convenient adjustment of main mechanical parameters such as the height, the levelness, the parallelism, the jet angle, the gap width and the like of the nozzle, simultaneously improve the whole deformation resistance of the width direction of the nozzle, and meet the requirements of a metal plate and strip high-precision cooling and heat treatment process and high-flatness plate shape control.
The technical scheme of the invention is as follows:
an adjustable slit jet nozzle comprises a water inlet device 4, a flow equalizing water collecting tank 6 and a gap adjusterA finishing device 8 and an adjusting mechanism 16; the width of the slit jet nozzle is 1500-5000 mm, and the instantaneous water spraying flow is 200-1000 m3The water spraying pressure is 0.5-1.2 MPa.
The water inlet device 4 comprises a water inlet joint 5 and a reinforcing rib plate 25. One end of the water inlet joint 5 is connected with the flow equalizing water collecting tank 6, and the other end is connected with the water supply pipeline metal hose 3; the number of the water inlet joints 5 is 4-8, the water inlet joints 5 are uniformly arranged at equal intervals, and the pipe diameter range DN 65-DN 150 of the water inlet joints 5 is designed according to the width of the slit jet nozzle. The reinforcing ribs 25 are rectangular and are fixed between the water inlet joints 5 to prevent the slit jet nozzle from being deformed in the width direction.
The flow equalizing water tank 6 is a cuboid flow equalizing tank body, the lower portion of the flow equalizing water tank is connected with the water inlet joint 5, and the upper portion of the flow equalizing water tank is a trapezoidal inclined plane and used for installing a gap adjusting device. A plurality of layers of flow equalizing damping devices are arranged in the flow equalizing water collecting tank 6, so that flow equalization is further realized; an upper guard plate 7 is arranged at the top end of the flow equalizing water collecting tank 6; the two side surfaces of the flow equalizing water collecting tank 6 are provided with fin structures 26 which are used for reinforcing the structure, preventing the tank body from deforming, increasing the heat dissipation area and preventing the slit jet nozzle from being too high in temperature when high-temperature metal plates and strips are roasted.
The gap adjusting device 8 comprises an adjusting plate 9, a gap adjusting mechanism and a pollution discharge mechanism 14. The adjusting plate 9 is fixed on the trapezoidal inclined plane of the flow equalizing water collecting tank 6 through a fastening bolt 11; a water spraying gap 10 is formed between the upper side surface of the adjusting plate 9 and the upper protection plate 7, and cooling water with a certain flow and pressure is jetted out from the water spraying gap 10 in a jet mode. The gap adjustment mechanism opens adjusting bolt 12 and reduces adjusting bolt 13 including opening adjusting bolt 12, opens adjusting bolt 12 and reduces adjusting bolt 13 and installs in adjusting plate 9 and the groove of inlaying of header tank 6 that flow equalizes, opens adjusting bolt 12 through the regulation and enlarges water spray gap 10, reduces water spray gap 10 through adjusting reducing adjusting bolt 13, and water spray gap 10 control range is 1.5 ~ 3.0 mm. The sewage discharging mechanism 14 is located at two ends of the gap adjusting device 8, the sewage discharging mechanism 14 is provided with the water baffle 15 which is located on the same plane with the adjusting plate 9, the water baffle 15 and the adjusting plate 9 are connected in an overlapping mode through wedge-shaped interfaces, the fastening bolt on the water baffle 15 is disassembled to achieve communication between the inside and the outside of the cavity of the flow equalizing water collecting tank, and sundries in the cavity of the flow equalizing water collecting tank and in a water spraying gap can be rapidly removed conveniently.
The two adjusting mechanisms 16 are respectively installed on two sides of the flow equalizing water tank 6 and connected with the flow equalizing water tank 6 through a round shaft 21. The adjusting mechanism 16 is fixed on the support base 18 and includes a nozzle height adjusting mechanism, a nozzle lateral adjusting mechanism and a nozzle angle adjusting mechanism. The nozzle height adjusting mechanism comprises a vertical adjusting bolt 17, the gap between a bottom plate of the adjusting mechanism 16 and a supporting seat 18 is adjusted by screwing the vertical adjusting bolt 17, the height of the slit jet nozzle is adjusted, and the adjusting range is 0-20 mm. The nozzle transverse adjusting mechanism comprises an adjusting stop block 19, the adjusting stop block 19 is connected with the round shaft 21 in a wrapping mode, horizontal adjusting bolts A20 are arranged on two sides of the adjusting stop block 19, transverse position adjustment of the slit jet nozzle is achieved by screwing the horizontal adjusting bolts A20, and the adjusting range is-20 mm. The nozzle angle adjusting mechanism comprises an orientation mechanism 22, an orientation connecting handle 23 and an indicating disc 24; the indicating dial 24 is arranged on the upper part of the adjusting mechanism 16, the orientation mechanism 22 is arranged on the bottom plate of the adjusting mechanism 16, the middle part of the orientation mechanism 22 is connected with the end part of the round shaft 21 through an orientation connecting handle 23, and the horizontal adjusting bolts B27 on the two sides of the orientation mechanism 22 are screwed to realize the left-right circular arc swing of the orientation connecting handle 23, so that the round shaft 21 is driven to rotate, the jet angle adjustment of the slit jet nozzle is realized, and the jet angle value is displayed on the indicating dial 24; the initial jet angle of the slit jet nozzle is 25 degrees, and the angle adjusting range is-10 degrees to 10 degrees.
The invention has the beneficial effects that:
(1) the slit jet nozzle gap adjusting device is designed to open and contract the adjusting bolt, and directly adjusts the gap between the adjusting plate and the upper guard plate of the flow equalizing water collecting tank, namely the jet water spraying gap; the adjustment precision is high, and the adjustment time is shortened from 3 hours to within 1 hour; the multiple groups of adjusting mechanisms are arranged at equal intervals along the length direction of the adjusting plate of the slit jet nozzle slit adjusting device, dynamic real-time adjustment is carried out, the shape of the adjusting plate is prevented from rebounding, and the slit adjusting precision is improved to +/-0.04 mm from +/-0.2 mm.
(2) The slit jet nozzle adjusting mechanism is directly connected with the output circular shaft of the slit jet nozzle, the height, the levelness, the parallelism and the jet angle of the slit jet nozzle are finely adjusted through different adjusting functions, main mechanical parameters can be accurately adjusted only by screwing bolts, the slit jet nozzle adjusting mechanism is convenient and reliable and high in adjusting precision, and the adjusting time is shortened from 5-6 hours to 30 minutes.
(3) The slit jet nozzle water inlet device adopts a multi-water inlet joint design, water is supplied and shunted to enter the flow equalizing water collecting tank, and secondary flow equalization is performed through a multi-damping-flow equalizing structure in the flow equalizing water collecting tank, so that the uniformity of the slit width direction flow of the slit jet nozzle is effectively improved.
(4) The outer side surface of the box body of the slit jet flow nozzle flow equalizing water collecting box is provided with a fin structure, and a rectangular reinforcing rib plate is arranged between water inlet joints of the water inlet device, so that the slit jet flow nozzle is effectively prevented from being deformed in the width direction, the use precision of the nozzle is improved, and the service life of the nozzle is prolonged.
The design can obviously improve the adjustment precision of the main mechanical parameters of the slit jet nozzle, greatly shorten the adjustment time, effectively improve the cooling uniformity of the nozzle and prolong the service life.
Drawings
FIG. 1 is a schematic view of an adjustable slit jet nozzle configuration of the present invention.
FIG. 2 is a schematic diagram of the configuration of the gap adjustment device in the adjustable slit jet nozzle of the present invention.
FIG. 3 is a schematic diagram of the configuration of the adjustment mechanism in the adjustable slit jet nozzle of the present invention.
FIG. 4 is a side cross-sectional view of an adjustable slit jet nozzle of the present invention.
In the figure: 1 slit jet nozzle; 2 a sheet metal strip; 3, a metal hose; 4, a water inlet device; 5, a water inlet joint; 6, flow equalizing water collecting tank; 7, an upper guard plate; 8, a gap adjusting device; 9 adjusting the plate; 10 water spraying gap; 11 fastening bolts; 12 opening the adjusting bolt; 13 tightening the adjusting bolt; 14 a pollution discharge mechanism; 15, a water baffle; 16 an adjustment mechanism; 17 vertical adjusting bolts; 18 a support seat; 19 adjusting the stop block; 20 horizontal adjusting bolt A; 21 a circular shaft; 22 an orientation mechanism; 23, connecting the handle in an oriented mode; 24 an indicator dial; 25 reinforcing ribs; 26 a fin structure; the bolt B is horizontally adjusted 27.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
The method of cooling by spraying water, adjusting the water spraying gap, removing dirt and slag, adjusting the height, adjusting the levelness, adjusting the parallelism and adjusting the jet angle of the adjustable slit jet nozzle according to the present invention will be described with reference to fig. 1.
In this embodiment, the width is 5000mm, and the instantaneous maximum water jet flow is 1000m3The specific embodiment of the invention is illustrated by taking an adjustable slit jet lower nozzle with water spray pressure of 1.0MPa as an example:
as shown in FIG. 1, when the slit jet nozzle 1 sprays water to cool the metal sheet or strip 2, the maximum water spray rate is 1000m3Cooling water with the maximum water spraying pressure of 1.0Mpa enters the water inlet joint 5 of the water inlet device 4 from 8 metal hoses 3 at the lower part of the slit jet nozzle 1, passes through the flow equalizing water collecting tank 6, is sprayed out through a water spraying gap 10 formed between the upper protection plate 7 at the top end of the flow equalizing water collecting tank 6 and the adjusting plate 9 in a jet mode, and cools the lower surface of the high-temperature metal plate strip 2.
When the slit jet nozzle 1 does not spray water to cool the metal plate strip 2, the height, the levelness, the parallelism, the jet angle and the water spray gap of the slit jet nozzle 1 can be adjusted, and the flow equalizing water collection tank 6 and the water spray gap 10 can also clean and discharge slag.
The adjustment of the water spray gap 10 is realized through a gap adjusting device 8, firstly, fastening bolts 11 on an adjusting plate 9 are loosened, the water spray gap 10 is enlarged by adjusting and opening adjusting bolts 12, the water spray gap 10 is reduced by adjusting and contracting adjusting bolts 13, the water spray gap 10 is measured through a feeler gauge, the adjusting range is 1.5-3.0 mm, and the adjusting precision of the same water spray gap 10 is less than or equal to +/-0.04 mm; after the water spray gap 10 is adjusted, the fastening bolt 11 of the adjusting plate 9 is tightened to fix the water spray gap 10.
The cleaning work of the flow equalizing water collection tank 6 and the water spraying gap 10 is realized through the sewage discharging mechanism 14, the fastening bolt 11 and the water baffle 15 on the sewage discharging mechanism 14 are sequentially detached, the slit jet nozzle 1 is opened to realize water spraying, and the water spraying flow is 100-300 m3Cooling water with water spraying pressure of 0.2-0.8 MPa is discharged from square holes communicated with the inside and the outside of the cavity of the flow equalizing water collecting tank 6 after being disassembled by the water baffle 15, thereby realizing the functions of cleaning and deslagging,and after the cleaning is finished, sequentially installing the water baffle 15 and the fastening bolt 11 on the water baffle 15.
The height, levelness, parallelism and jet angle of the slit jet nozzle 1 are adjusted by an adjusting mechanism 16: the gap between the bottom plate of the adjusting mechanism 16 and the lower support seat 18 is adjusted by adjusting the vertical adjusting bolt 17, so that the height of the slit jet nozzle 1 is adjusted within the range of 0-20 mm; the levelness of the slit jet nozzle 1 is adjusted by adjusting vertical adjusting bolts 17 on two sides of an adjusting mechanism 16 and matching with a level ruler, and the horizontal height difference of two sides of the slit jet nozzle 1 is less than or equal to +/-0.1 mm; the slit jet nozzle 1 is moved back and forth by adjusting horizontal adjusting bolts A20 on two sides of the adjusting stop block 19, the parallelism adjustment of the slit jet nozzle 1 is realized, and the deviation of the parallelism on two sides of the slit jet nozzle 1 is less than or equal to +/-0.1 mm; the horizontal adjusting bolts B27 on the two sides of the orientation mechanism 22 are adjusted to enable the orientation connecting handle 23 to swing left and right in a circular arc manner, so that the circular shaft 21 and the slit jet nozzle 1 are driven to rotate axially, the jet angle adjustment is realized, the adjustment range is-10 degrees to 10 degrees, and the jet angle of the slit jet nozzle 1 is displayed through the indicating disc 24.
When the slit jet nozzle 1 is empty of the normalized metal plate strip 2 for a long time, in order to prevent the high-temperature metal plate strip 2 from roasting the slit jet nozzle 1 to deform, the following design or measures are adopted: the slit jet nozzle 1 is filled with water with the water spraying flow of 50-200 m3Cooling water with water spraying pressure of 0.2-0.5 Mpa; a rectangular reinforcing rib plate 25 is designed between the water inlet joints 5 to prevent the slit jet nozzle 1 from being bent and deformed in the width direction; the fin structure 26 is designed on the outer side surface of the flow equalizing water collecting tank 6, so that the tank body structure is reinforced, the tank body is prevented from deforming, the heat dissipation area is increased, and the temperature of the slit jet nozzle is prevented from being too high when high-temperature metal plate strips are roasted.
The result shows that the invention effectively solves the problems of low precision and low fine adjustment efficiency of the adjustment of the main mechanical parameters such as the height, the levelness, the parallelism, the jet angle, the water spray gap and the like of the slit jet nozzle, obviously improves the cooling uniformity of the slit jet nozzle and the quenching plate shape of the metal plate strip, simultaneously improves the deformation resistance of the slit jet nozzle and prolongs the service life.
Claims (5)
1. An adjustable slit jet nozzle is characterized by comprising a water inlet device (4), a flow equalizing water collecting tank (6), a gap adjusting device (8) and an adjusting mechanism (16);
the water inlet device (4) comprises a plurality of water inlet joints (5) and a plurality of reinforcing rib plates (25); one end of the water inlet joint (5) is connected with the flow equalizing water collecting tank (6), and the other end is connected with the metal hose (3); the water inlet joints (5) are uniformly arranged at equal intervals, and the reinforcing rib plates (25) are fixed among the water inlet joints (5) to prevent the slit jet nozzle from being deflected and deformed in the width direction;
the flow equalizing water collecting tank (6) is a cuboid flow equalizing tank body, the upper part of the flow equalizing water collecting tank body is a trapezoidal inclined plane, and the flow equalizing water collecting tank is used for installing a gap adjusting device; an upper guard plate (7) is arranged at the top end of the flow equalizing water collecting tank (6); a multilayer flow equalizing damping device is arranged in the flow equalizing water collecting tank (6); fin structures (26) are arranged on two side faces of the flow equalizing water collecting tank (6) and are used for reinforcing the tank body, preventing the tank body from deforming, increasing the heat dissipation area and preventing the temperature of the slit jet nozzle from being too high;
the gap adjusting device (8) comprises an adjusting plate (9), a gap adjusting mechanism and a sewage discharging mechanism (14); the adjusting plate (9) is fixed on the trapezoidal inclined plane of the flow equalizing water collecting tank (6) through a fastening bolt (11); a water spray gap (10) is formed between the upper side surface of the adjusting plate (9) and the upper protective plate (7), and cooling water is jetted out from the water spray gap (10) in a jet manner; the gap adjusting mechanism comprises an opening adjusting bolt (12) and a tightening adjusting bolt (13), the opening adjusting bolt (12) and the tightening adjusting bolt (13) are installed in the embedded grooves of the adjusting plate (9) and the flow equalizing water collecting tank (6), the water spraying gap is enlarged by adjusting the opening adjusting bolt (12), and the water spraying gap is reduced by adjusting the tightening adjusting bolt (13); the sewage discharge mechanism (14) is positioned at two ends of the gap adjusting device (8), the sewage discharge mechanism (14) is provided with a water baffle (15) which is positioned on the same plane with the adjusting plate (9), the water baffle (15) and the adjusting plate (9) are connected in an overlapping mode through a wedge-shaped interface, the water baffle (15) is disassembled to realize the communication between the inside and the outside of the cavity of the flow equalizing water collecting tank, and therefore sundries can be conveniently and quickly removed;
the two adjusting mechanisms (16) are respectively arranged on two sides of the flow equalizing water collecting tank (6) through a round shaft (21); the adjusting mechanism (16) is fixed on the supporting seat (18) and comprises a nozzle height adjusting mechanism, a nozzle transverse adjusting mechanism and a nozzle angle adjusting mechanism; the nozzle height adjusting mechanism comprises a vertical adjusting bolt (17), and the gap between a bottom plate of the adjusting mechanism (16) and a supporting seat (18) is adjusted by screwing the vertical adjusting bolt (17) to realize the height adjustment of the slit jet nozzle; the nozzle transverse adjusting mechanism comprises an adjusting stop block (19), the adjusting stop block (19) is connected with a circular shaft (21), horizontal adjusting bolts A (20) are arranged on two sides of the adjusting stop block (19), and the transverse position of the slit jet nozzle is adjusted by screwing the horizontal adjusting bolts A (20); nozzle angle guiding mechanism includes guiding mechanism (22), directional connecting handle (23) and dial (24), guiding mechanism (16) upper portion is located in dial (24), guiding mechanism (22) are connected handle (23) and circle axle (21) end connection through directional, realize directional connecting handle (23) left and right sides circular arc swing through revolving horizontal adjusting bolt B (27) of twisting guiding mechanism (22) both sides, thereby drive circle axle (21) and rotate, realize slit jet nozzle efflux angle adjustment, efflux angle value shows through dial (24).
2. The adjustable slit jet nozzle as claimed in claim 1, wherein the number of the water inlet joints (5) is 4-8, and the pipe diameter ranges from DN 65-DN 150.
3. An adjustable slit jet nozzle according to claim 1 or 2, characterized in that the adjustment range of the water jet gap (10) is 1.5-3.0 mm.
4. An adjustable slit jet nozzle as claimed in claim 1 or 2, wherein the height of the slit jet nozzle is adjustable in the range of 0 to 20 mm; the transverse position adjusting range of the slit jet nozzle is-20 mm; the initial jet angle of the slit jet nozzle is 25 degrees, and the angle adjusting range is-10 degrees to 10 degrees.
5. The adjustable slit jet nozzle of claim 3, wherein the height adjustment range of the slit jet nozzle is 0-20 mm; the transverse position adjusting range of the slit jet nozzle is-20 mm; the initial jet angle of the slit jet nozzle is 25 degrees, and the angle adjusting range is-10 degrees to 10 degrees.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534708.0A CN111701768B (en) | 2020-06-12 | 2020-06-12 | Adjustable slit jet nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534708.0A CN111701768B (en) | 2020-06-12 | 2020-06-12 | Adjustable slit jet nozzle |
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| CN111701768A CN111701768A (en) | 2020-09-25 |
| CN111701768B true CN111701768B (en) | 2021-06-15 |
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| CN114308488B (en) * | 2021-12-15 | 2022-07-01 | 江苏荣生电子有限公司 | Balanced reciprocating spraying mechanism for spraying electrode foil |
| CN116042991A (en) * | 2022-12-23 | 2023-05-02 | 东北大学 | Gradient diversion water supply device and water supply method for cooling system |
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| JP2014008465A (en) * | 2012-06-29 | 2014-01-20 | Dainippon Printing Co Ltd | Die head, gathering device, and adjusting method of clearance size of slit of the die head |
| KR102106443B1 (en) * | 2013-05-24 | 2020-05-04 | 삼성에스디아이 주식회사 | Slit nozzle and slit coating apparatus using thereof |
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2020
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