CN211161217U - Injection device for cold rolling equipment - Google Patents
Injection device for cold rolling equipment Download PDFInfo
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- CN211161217U CN211161217U CN201922141128.0U CN201922141128U CN211161217U CN 211161217 U CN211161217 U CN 211161217U CN 201922141128 U CN201922141128 U CN 201922141128U CN 211161217 U CN211161217 U CN 211161217U
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Abstract
The utility model relates to the field of metal cold rolling equipment, in particular to an injection device for cold rolling equipment, which comprises a pressure stabilizing cylinder and a plurality of nozzles; the plurality of nozzles are respectively arranged on the pressure stabilizing cylinder; any one of the nozzles forms a spraying section along the spraying direction of the nozzle, one section of the spraying section is a spraying covering part, and the spraying covering parts of the two adjacent nozzles are in a mutually isolated state. The utility model provides an injection apparatus for cold rolling equipment, through set up a plurality of nozzles on a steady voltage section of thick bamboo to the spraying cover portion of any nozzle is mutual isolated state, makes the in-service use the utility model provides an injection apparatus for cold rolling equipment, the stranded compressed air that sprays on compression roller and/or the metal rolled keeps the state of mutual isolation, thereby has improved the availability factor of compressed air; the cooling effect of the press rolls and/or the metal to be rolled by the mutually isolated multiple strands of compressed air is superior to the cooling effect of the mutually interfering multiple strands of compressed air.
Description
Technical Field
The utility model relates to a cold rolling equipment field of metal specifically is an injection apparatus for cold rolling equipment.
Background
Cold rolling equipment is equipment used to process metal into strips or foils. Cold rolling plants usually have two rolls whose roll surfaces are close to each other with a gap; the metal moves in the gap and is rolled by two rollers, so that the thickness of the metal is gradually reduced until the metal becomes a metal belt or a metal foil. Because the two press rolls and the metal rub against each other, when the cold rolling device is used, the temperatures of the two press rolls and the temperature of the metal to be rolled are respectively increased, and therefore, the two press rolls and the metal to be rolled need to be cooled by the spray beams of the sprayed compressed air.
In the spray beam in the prior art, the sprayed compressed air cools the press roll of the cold rolling equipment and/or the rolled metal, the cooling effect is not ideal, and the temperature of the press roll on the cold rolling equipment and the temperature of the rolled metal are both in a relatively high temperature state, so that the error of rolling the metal into a belt shape or a foil shape is increased.
SUMMERY OF THE UTILITY MODEL
For solving the injection roof beam among the prior art, its compressed air that sprays cools down to cold rolling equipment's compression roller and/or by rolling metal, its cooling effect is unsatisfactory, and the temperature of the compression roller on the cold rolling equipment all is in relative high temperature state with by rolling metal temperature, leads to rolling the technical problem that is the error increase of banding or foil form with the metal, the utility model provides an injection apparatus for cold rolling equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
according to one aspect of the utility model, the injection device for the cold rolling equipment is provided, which comprises a pressure stabilizing cylinder and a plurality of nozzles; the plurality of nozzles are respectively arranged on the pressure stabilizing cylinder; any one of the nozzles forms a spraying section along the spraying direction of the nozzle, one section of the spraying section is a spraying covering part, and the spraying covering parts of two adjacent nozzles are in a mutually isolated state.
Further, the spray covering portions of any two of the nozzles are in a mutually converging and mutually isolated state.
Further, the injection direction of any one of the nozzles is in an angle shape of 10 ° to 25 ° with respect to the extending direction of the surge tank.
Further, the pressure stabilizing cylinder is arranged in the horizontal direction, and the spray covering parts of all the nozzles are positioned above or below one side of the pressure stabilizing cylinder in the horizontal direction.
Furthermore, the number of the pressure stabilizing cylinders is two, one of the pressure stabilizing cylinders is a first pressure stabilizing cylinder, the other pressure stabilizing cylinder is a second pressure stabilizing cylinder, and the first pressure stabilizing cylinder is arranged above the second pressure stabilizing cylinder; the first pressure stabilizing cylinder and the second pressure stabilizing cylinder are respectively provided with four nozzles, and any one of the spraying covering parts of the first pressure stabilizing cylinder is mutually isolated from any one of the spraying covering parts of the second pressure stabilizing cylinder.
Further, the interior of the pressure stabilizing cylinder is used for conducting compressed air, and any one of the nozzles is used for spraying the compressed air; the pressure of the compressed air is 0.6 to 0.8Mpa, and the total flow rate of the compressed air is 20 cubic meters per minute.
Furthermore, the two ends of the nozzle are respectively a connecting end and an injection end, the connecting end is connected with the pressure stabilizing cylinder, and the injection end is arranged outside the pressure stabilizing cylinder; a flowing cavity is arranged between the connecting end and the spraying end, the connecting end is provided with an injection opening, and the spraying end is provided with a circular spraying hole.
Further, at least two spiral grooves are formed in the inner wall of the nozzle which surrounds the flow cavity; any one of the spiral grooves extends from the connecting end to the spraying end respectively.
Further, at least two circular spray holes are formed in the nozzle; the spraying covering parts of the two adjacent circular spray holes are in a mutually convergent state.
Further, the nozzle is welded or detachably arranged on the pressure stabilizing cylinder.
The technical scheme has the following advantages or beneficial effects:
the utility model provides an injection apparatus for cold rolling equipment, through set up a plurality of nozzles on a steady voltage section of thick bamboo to the spraying cover portion of any nozzle is mutual isolated state, makes the in-service use the utility model provides an injection apparatus for cold rolling equipment, the stranded compressed air that sprays on compression roller and/or the metal rolled keeps the state of mutual isolation, thereby has improved the availability factor of compressed air; the cooling effect of the press rolls and/or the metal to be rolled by the mutually isolated multiple strands of compressed air is superior to the cooling effect of the mutually interfering multiple strands of compressed air.
Drawings
Fig. 1 is a schematic structural diagram of an injection device for a cold rolling apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a pressure stabilizing cylinder and a plurality of nozzles provided in the embodiment of the present invention;
FIG. 3 is another schematic structural diagram of a surge drum and a plurality of nozzles provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a surge drum and a plurality of nozzles according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a nozzle according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of a nozzle provided in an embodiment of the present invention;
fig. 7 is a schematic view of an injection region and an injection covering part provided by the embodiment of the present invention.
Detailed Description
For solving the injection roof beam among the prior art, its compressed air that sprays cools down to cold rolling equipment's compression roller and/or by rolling metal, its cooling effect is unsatisfactory, and the temperature of the compression roller on the cold rolling equipment all is in relative high temperature state with by rolling metal temperature, leads to rolling the technical problem that is the error increase of banding or foil form with the metal, the utility model provides an injection apparatus for cold rolling equipment.
Referring to fig. 1 and 7, a spray device for a cold rolling apparatus includes a surge tank 1 and a plurality of nozzles 2; the plurality of nozzles 2 are respectively arranged on the pressure stabilizing cylinder 1; any one of the nozzles 2 forms a jetting section along the jetting direction of the nozzle 2, one of the sections is a jetting covering part, and the jetting covering parts of two adjacent nozzles 2 are in a mutually isolated state.
Wherein, surge tank 1 is used for and air compressor intercommunication, and the compressed air of air compressor processing passes through the pipeline and pours into surge tank 1 into. The plurality of nozzles 2 are respectively provided on the surge tank 1, and any one of the nozzles 2 is respectively the same as the surge tank 1, so that the compressed air in the surge tank 1 can be ejected from any one of the nozzles 2.
When the compressed air is ejected from one nozzle 2, the compressed air forms an ejection state in which the compressed air gradually spreads along the ejection direction from the nozzle 2 as a starting point, and therefore, the state after the compressed air is ejected from the nozzle 2 is an ejection interval (see a in fig. 7). According to the kinetic energy change curve of the compressed air after being sprayed out of the nozzle 2, one of the spraying sections can be intercepted as a spraying covering part (see B in fig. 7).
The spray coating part needs to be selected according to actual requirements. If only the pressure roller of the cold rolling equipment needs to be cooled, the spray covering part can actually intersect with the surface of the pressure roller; if only the rolled metal needs to be cooled, the spray cover should actually be able to intersect the rolled metal surface; if it is desired to cool down both the press rolls of a cold rolling plant and the metal being rolled, the spray coating should actually be able to intersect the surface of the press rolls and the surface of the metal being rolled, respectively. Meanwhile, when the compressed air is sprayed to the spraying covering part, the compressed air should keep certain pressure or kinetic energy according to design requirements, so that when the compressed air is actually sprayed to the compression roller and/or the rolled metal surface, the compressed air has air volume and flow rate which meet the design requirements, and the cooling effect on the compression roller and/or the rolled metal surface is ensured.
It should be understood that the ejection area is a space occupied by any one of the nozzles 2 when actually ejecting the compressed air; the spraying covering part is one section of spraying area which needs to keep certain pressure or kinetic energy of the sprayed compressed air according to design requirements, and both the sections are objective. The specific shape of the spray area is related to the structure of the nozzle 2 and the pressure of the compressed air, and likewise the specific location of the spray coverage is related to the structure of the nozzle 2 and the pressure of the compressed air, respectively.
And a plurality of nozzles 2 arranged on the surge tank 1, each of which has an independent spray section and a spray cover. The ejection sections of any two nozzles 2 may be able to intersect at the distal ends with respect to the nozzles 2, but in the present embodiment, the ejection covering portions of any two nozzles 2 are in a state of being separated from each other. This is because any two nozzles 2 can inject compressed air respectively, and if the two compressed air intersect at the injection covering portion, the two compressed air can affect each other, so that any one compressed air can obtain kinetic energy capable of changing the injection direction, respectively, so that the injection state of any one compressed air is changed, thereby reducing the pressure or kinetic energy of any one compressed air.
In practical application, the utility model provides a during injection apparatus for cold rolling equipment, a pressure stabilizing cylinder 1 and a plurality of nozzles 2 are installed near the compression roller of cold rolling equipment, and a plurality of nozzles 2 point to compression roller or the region near the compression roller respectively; when the cold rolling device is rolling metal, the metal passes through the press rolls along the moving direction of the metal; at this time, the spray cover of any one of the nozzles 2 can intersect with the press roll and/or the metal to be rolled, respectively, so that when the compressed air maintaining a certain pressure or kinetic energy is sprayed onto the press roll and/or the metal to be rolled, the air volume and flow rate of the compressed air meet the design requirements; meanwhile, the spray covering parts of two adjacent nozzles 2 are in an isolated state, so that two adjacent compressed air streams are prevented from interfering with each other.
When the plurality of strands of compressed air are sprayed to the surface of the compression roller, the compressed air and the surface of the compression roller form a heat exchange state, so that the heat of the compression roller is absorbed by the compressed air; with the continuous injection of the compressed air, the plurality of compressed air can continuously absorb the heat of the press roll, thereby reducing the temperature of the surface of the press roll. Similarly, when a plurality of strands of compressed air are sprayed to the surface of the metal to be rolled, the compressed air and the surface of the metal to be rolled form a heat exchange state, so that the heat of the surface of the metal to be rolled is absorbed by the compressed air; with the continuous injection of the compressed air, the plurality of strands of compressed air can continuously absorb the heat of the rolled metal surface, so that the temperature of the rolled metal surface is reduced, and the defects of wrinkles and the like of the rolled metal surface are avoided.
Through setting up a plurality of nozzles on the pressure stabilizing cylinder to the spraying cover portion of any nozzle is mutual isolated state, make the utility model provides a during the actual use the injection apparatus for cold rolling equipment, spray the stranded compressed air on compression roller and/or the metal rolled and keep the state of mutual isolation, thereby improved the availability factor of compressed air; the cooling effect of the press rolls and/or the metal to be rolled by the mutually isolated multiple strands of compressed air is superior to the cooling effect of the mutually interfering multiple strands of compressed air.
Therefore, the utility model provides an injection apparatus for cold rolling equipment solves the injection roof beam among the prior art, and its compressed air that sprays cools down to cold rolling equipment's compression roller and/or by rolling metal, and its cooling effect is unsatisfactory, and the temperature of the compression roller on the cold rolling equipment and the metal temperature by rolling all are in relative high temperature state, lead to rolling the technical problem who is the error increase of banding or foil form with the metal.
Further, in order to better improve the use efficiency of the compressed air, in the embodiment, the spraying direction of the nozzle 2 is optimized, specifically:
in the figure, the spray coating portions of any two nozzles 2 are in a mutually converging and mutually spaced state.
Wherein, a plurality of nozzles 2 set up on same pressure stabilizing cylinder 1, can appear following multiple setting mode:
A. referring to fig. 2 and 7, the plurality of nozzles 2 are linearly arranged. In this arrangement, the nozzles 2 arranged at both ends of the surge tank 1 are end nozzles, and the spraying direction of the end nozzles is inclined toward the extending direction of the surge tank 1; the nozzle 2 arranged between the middle part and the two ends of the pressure stabilizing cylinder 1 is a transition nozzle, the spraying direction of the transition nozzle is also in an inclined state towards the extension direction of the pressure stabilizing cylinder 1, and only the included angle of the spraying direction of the transition nozzle relative to the extension direction of the pressure stabilizing cylinder 1 is smaller than the included angle of the spraying direction of the end nozzle relative to the extension direction of the pressure stabilizing cylinder 1; the nozzles 2 arranged in the middle of the pressure stabilizing cylinder 1 are central nozzles, if the number of the central nozzles is one, the spraying direction of the central nozzles should be perpendicular to the extending direction of the pressure stabilizing cylinder 1, if the number of the central nozzles is two, the spraying directions of the two central nozzles should be in an inclined state relative to the extending direction of the pressure stabilizing cylinder 1, and only the included angle of the spraying directions of the two central nozzles relative to the extending direction of the pressure stabilizing cylinder 1 is smaller than the included angle of the spraying directions of the end nozzles and the transition nozzles 2 relative to the extending direction of the pressure stabilizing cylinder 1.
B. Referring to fig. 3 and 7, the plurality of nozzles 2 are arranged in a curved line. In this arrangement, the nozzles 2 arranged at the upper part of the horizontal bisection plane of the surge drum 1 are a first group of nozzles, and the nozzles 2 arranged at the lower part of the horizontal bisection plane of the surge drum 1 are a second group of nozzles. Wherein, the first set of nozzles or the second set of nozzles can be respectively arranged in the arrangement manner of 'a', which is not described herein again. The spraying direction of any one nozzle 2 in the first group of nozzles is inclined relative to the horizontal split surface along the upper part to the lower part of the horizontal split surface of the surge drum 1; in the same way, the injection direction of any one nozzle 2 in the second group of nozzles is inclined relative to the horizontal median plane along the lower part and the upper part of the horizontal median plane of the surge tank 1.
C. Referring to fig. 4 and 7, a plurality of nozzles 2 are arranged in an array. In this arrangement, two adjacent rows can be arranged in the aforementioned 'B' arrangement, which is not described herein. In each row, the spraying direction of the nozzle 2 positioned at the upper part of the horizontal bisection surface of the pressure stabilizing cylinder 1 is inclined relative to the horizontal bisection surface along the direction from the upper part to the lower part of the horizontal bisection surface, and only the included angle of the spraying direction of the nozzle 2 far away from the horizontal bisection surface relative to the horizontal bisection surface is larger than the included angle of the spraying direction of the nozzle 2 near the horizontal bisection surface relative to the horizontal bisection surface; in the same way, in each row, the spraying directions of the nozzles 2 positioned at the lower part of the horizontal bisection plane of the pressure stabilizing cylinder 1 are inclined relative to the horizontal bisection plane along the direction from the lower part to the upper part of the horizontal bisection plane respectively, and only the included angle of the spraying direction of the nozzle 2 far away from the horizontal bisection plane relative to the horizontal bisection plane is larger than the included angle of the spraying direction of the nozzle 2 near to the horizontal bisection plane relative to the horizontal bisection plane. In addition, the ejection angle of any one of the nozzles 2 in each row or each column may be the same or different.
It should be understood that there may be more arrangements than the three arrangements of 'a', 'B' and 'C' listed above, and the detailed description is omitted here.
In the above-mentioned multiple arrangement modes, no matter which arrangement mode is 'a', 'B' and 'C', the spray covering parts of two adjacent nozzles 2 are respectively in a mutually isolated state and in a mutually convergent state, so that the spray covering parts of the nozzles 2 form a 'focused' arrangement mode, and multiple strands of compressed air are concentrated as much as possible on the premise of not interfering with each other; besides ensuring the amount of air sprayed on the roll shaft and/or the metal to be rolled, the concentrated multiple strands of compressed air can also improve the heat dissipation efficiency of the roll shaft and/or the metal to be rolled by ensuring the flow velocity of any one of the air.
Further, on the basis of all the foregoing solutions, the present embodiment proposes a more specific solution for arranging a plurality of nozzles 2, specifically:
the injection direction of any one of the nozzles 2 is in an angle shape of 10 ° to 25 ° with respect to the extending direction of the surge tank 1.
When a plurality of nozzles 2 are arranged on the same pressure stabilizing cylinder 1, the maximum value of the angle of the spraying direction of the nozzles 2 at the two ends of the pressure stabilizing cylinder 1 relative to the extending direction of the pressure stabilizing cylinder 1 is 65 degrees; in other words, the maximum value of the angle of the jetting directions of the nozzles 2 located at both ends of the surge tank 1 with respect to the vertical bisector is 25 ° with the vertical bisector of the surge tank 1 as the center. Except the nozzles 2 positioned at two ends of the pressure stabilizing cylinder 1, the included angles of the spraying directions of the other nozzles 2 relative to the vertical median plane of the pressure stabilizing cylinder 1 are respectively less than 25 degrees; and the number of the nozzles 2 in the middle of the pressure stabilizing cylinder 1 is two, and the included angle of the spraying directions of the two nozzles 2 in the middle of the pressure stabilizing cylinder 1 relative to the vertical bisector is more than 10 degrees.
Further, in an actual cold rolling apparatus having a horizontally upper press roll and a horizontally lower press roll, the metal to be rolled moves along the gap between the two press rolls, which makes it necessary to cool the horizontally upper press roll and/or the upper surface of the metal to be rolled and to cool the horizontally lower press roll and/or the lower surface of the metal to be rolled during the operation of the cold rolling apparatus.
In the present embodiment, referring to fig. 1 to 4, the surge tank 1 is disposed in the horizontal direction, and the ejection covering portions of all the nozzles 2 are located above or below one side of the surge tank 1 in the horizontal direction.
When the number of the pressure stabilizing cylinders 1 is two, one pressure stabilizing cylinder 1 is arranged above the horizontal direction, and the other pressure stabilizing cylinder 1 is arranged below the horizontal direction.
Any pressure stabilizing cylinder 1 should be arranged in the horizontal direction respectively, so that the extending direction of any pressure stabilizing cylinder 1 and the extending direction of the compression roller of the cold rolling equipment are parallel to each other; at the same time, the injection directions of all the nozzles 2 located on the same roll should be directed towards the roll and/or the metal to be rolled, respectively, so that the plurality of injected compressed air jets are formed to the roll and/or the metal to be rolled. In this case, all the nozzles 2 on the surge drum 1 located in the upper horizontal direction are respectively provided between the surge drum 1 and the press rolls and/or the metal to be rolled located in the upper horizontal direction; all the nozzles 2 on the pressure-stabilizing cylinder 1 located at the lower part in the horizontal direction are respectively arranged between the pressure-stabilizing cylinder 1 and the compression roller and/or the metal to be rolled located at the lower part in the horizontal direction. With the extending direction of any one of the surge tanks 1 as a viewing angle, the spray covering portions of all the nozzles 2 on the surge tank 1 positioned at the upper part in the horizontal direction are positioned below one side in the horizontal direction of the surge tank 1, and the spray covering portions of all the nozzles 2 on the surge tank 1 positioned at the lower part in the horizontal direction are positioned above one side in the horizontal direction of the surge tank 1.
Further, on the basis of all the foregoing schemes, the present embodiment provides a more specific scheme for arranging the surge tank 1 and the plurality of nozzles 2, specifically as follows:
referring to fig. 1 or fig. 2, the number of the surge drums 1 is two, wherein one surge drum 1 is a first surge drum, and the other surge drum 1 is a second surge drum, and the first surge drum is arranged above the second surge drum;
four nozzles 2 are respectively arranged on the first pressure stabilizing cylinder and the second pressure stabilizing cylinder, and any spraying covering part of the first pressure stabilizing cylinder is mutually isolated from any spraying covering part of the second pressure stabilizing cylinder.
Wherein, the four nozzles 2 of the first pressure stabilizing cylinder are arranged on the same side, the spraying directions of the four nozzles 2 are mutually convergent, and the spraying covering parts of any one nozzle 2 are mutually isolated; and the spray covering parts of the four nozzles 2 of the first pressure stabilizing cylinder can respectively intersect with the compression roller and/or the metal to be rolled which are positioned at the upper part of the cold rolling equipment in the horizontal direction; the four nozzles 2 of the first surge drum are respectively inclined towards the compression roller and/or the metal to be rolled. The arrangement mode of the four nozzles 2 of the second pressure stabilizing cylinder is similar to that of the first pressure stabilizing cylinder, and the difference between the four nozzles 2 is only that the nozzles are actually arranged at different positions on the cold rolling equipment and the arrangement directions of the nozzles 2 are different, so that the description is omitted.
Further, in all the aforementioned solutions, the surge tank 1 and any one of the nozzles 2 should have pressure-bearing capacity according to design requirements, respectively, so as to be used for the flow of the compressed air. The method specifically comprises the following steps:
the inside of the pressure stabilizing cylinder 1 is used for conducting compressed air, and any one of the nozzles 2 is used for spraying the compressed air;
the pressure of the compressed air is 0.6 to 0.8Mpa, and the total flow rate of the compressed air is 20 cubic meters per minute.
The pressure stabilizing cylinder 1 is communicated with an external air compressor, and compressed air produced by the air compressor is injected into the pressure stabilizing cylinder 1 through a pipeline and then is sprayed out through a nozzle 2 on any pressure stabilizing cylinder 1. In order to ensure the flow of the sprayed compressed air, the flow velocity of the pressure stabilizing cylinder 1 can meet 20 cubic meters per minute, and in order to ensure the pressure of the sprayed compressed air, the air pressure of the compressed air in the pressure stabilizing cylinder 1 is kept between 0.6 and 0.8 MPa.
When the compressed air in the pressure stabilizing cylinder 1 meets the parameters, one pressure stabilizing cylinder 1 can at least provide enough uniform compressed air for the four nozzles 2, so that the temperature reduction effect of the compressed air sprayed out of the nozzles 2 on the compression roller and/or the rolled metal is kept in an ideal state.
More specifically, referring to fig. 5 or 6, the two ends of the nozzle 2 are respectively a connecting end 201 and an injection end 202, the connecting end 201 is connected with the surge tank 1, and the injection end 202 is arranged outside the surge tank 1;
a flow cavity 203 is arranged between the connecting end 201 and the injection end 202, the connecting end 201 is provided with an injection port, and the injection end 202 is provided with a circular spray hole.
Wherein, compressed air is injected into the pressure stabilizing cylinder 1 and is respectively guided to the connecting end 201 of any nozzle 2 through the pressure stabilizing cylinder 1; the compressed air flows in the flow chamber 203 in the direction from the connection end 201 to the ejection end 202, and is finally ejected from the ejection end 202. The flow chamber 203 may be cylindrical, or may be conical or arc-surface, in this embodiment, the flow chamber 203 is a combination of cylindrical and conical or arc-surface, wherein the cylindrical shape is disposed at the connection end 201 of the nozzle 2 to facilitate the injection of a large amount of compressed air into the flow chamber 203, and the conical or arc-surface shape is disposed at the injection end 202 of the nozzle 2 to facilitate the concentrated injection of compressed air.
Preferably, referring to fig. 6, at least two spiral grooves 204 are formed on the inner wall of the nozzle 2 enclosing the flow chamber 203; each helical groove 204 extends from the connection end 201 to the injection end 202.
Wherein the spiral groove 204 functions to change the flow direction of a portion of the compressed air in the flow chamber 203. When the compressed air is injected into the flow cavity 203, a part of the compressed air flowing through the spiral groove 204 on the inner wall of the nozzle 2 is subjected to the reaction force of the flow cavity 203, so that the axial and radial flow trends are generated, and the flow path of the part of the compressed air forms a spiral shape; the part of the compressed air can pressurize the rest part of the compressed air, so that before the compressed air is sprayed out of the nozzle 2, the compressed air in the flow cavity 203 is integrally formed into a spiral secondary pressurization state, and the pressure loss of the compressed air in the flow cavity 203 is reduced.
Optionally, at least two circular spray holes (not shown) are arranged on the nozzle 2; the spraying covering parts of the two adjacent circular spray holes are in a mutually convergent state.
At least two circular spray holes are formed in one nozzle 2, and the circular spray holes are suitable for a pressure stabilizing cylinder 1 with a short horizontal length in the extending direction, so that the number of the nozzles 2 arranged on the pressure stabilizing cylinder 1 with the short horizontal length is reduced, and the air quantity and the flow speed of the injected compressed air can be met.
In all the previous proposals, the nozzle 2 is welded or detachably arranged on the pressure stabilizing cylinder 1. When the nozzle 2 is detachably arranged on the pressure stabilizing cylinder 1, the nozzle 2 and the pressure stabilizing cylinder 1 can be in threaded connection or flange connection or rotary clamping and connection.
In addition, on the basis of all the schemes, an automatic control system can be added. The automatic control system at least comprises a controller, at least two pressure sensors and an air pressure regulating valve, wherein the air pressure regulating valve is arranged between the air compressor and the pressure stabilizing cylinder in series. One of the pressure sensors is arranged on the pressure stabilizing cylinder and used for acquiring the pressure of compressed air in the pressure stabilizing cylinder; the other pressure sensor is arranged at the outlet of the air compressor and used for acquiring the pressure of the compressed air produced by the air compressor; the at least two pressure sensors respectively transmit feedback signals to the controller; the controller is internally provided with pressure design parameters, compares the pressure design parameters with feedback signals from a pressure sensor of the pressure stabilizing cylinder, if the pressure design parameters are met, the output state of the air pressure regulating valve is kept, and if not, the next judgment process is carried out; the controller compares the pressure design parameter with a feedback signal from a pressure sensor of the pressure stabilizing cylinder, and if the pressure design parameter is not met but the pressure design parameter is met, the controller outputs an adjusting signal which is used for adjusting the air pressure adjusting valve; otherwise, if the pressure from the air compressor and the pressure from the pressure stabilizing cylinder do not accord with the pressure design parameters respectively, the controller outputs an adjustable signal, and the adjustable signal is used for adjusting the air compressor.
By arranging the automatic control system, when the air pressure of the air compressor meets the design requirement, the air pressure of the compressed air in the pressure stabilizing cylinder can meet the design requirement by adjusting the air pressure adjusting valve; when the air pressure of the air compressor does not meet the design requirement, the air pressure of the compressed air in the pressure stabilizing cylinder can meet the design requirement by adjusting the working state of the air compressor; by adopting the automatic control system, the pressure of the compressed air in the pressure stabilizing cylinder can meet the design parameters of the air pressure when the cold rolling equipment works, so that the compressed air sprayed by the spraying device for the cold rolling equipment can be ensured to have the air quantity and the flow rate meeting the design requirements.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (10)
1. The spraying device for the cold rolling equipment is characterized by comprising a pressure stabilizing cylinder and a plurality of nozzles;
the plurality of nozzles are respectively arranged on the pressure stabilizing cylinder;
any one of the nozzles forms a spraying section along the spraying direction of the nozzle, one section of the spraying section is a spraying covering part, and the spraying covering parts of two adjacent nozzles are in a mutually isolated state.
2. The injection apparatus for a cold rolling facility according to claim 1, wherein the injection covering portions of any two of the nozzles are in a mutually converging and mutually spaced state.
3. The injection apparatus for a cold rolling mill according to claim 2, wherein an injection direction of any one of said nozzles is in an angle shape of 10 ° or more and 25 ° or less with respect to an extending direction of said surge tank.
4. The injection apparatus for a cold rolling mill according to claim 2, wherein said surge tank is disposed in a horizontal direction, and said injection covering portions of all said nozzles are located above or below one side of said surge tank in the horizontal direction.
5. The injection apparatus for a cold rolling plant according to claim 4, wherein the number of said cylinders is two, one of said cylinders being a first cylinder, the other of said cylinders being a second cylinder, said first cylinder being disposed above said second cylinder;
the first pressure stabilizing cylinder and the second pressure stabilizing cylinder are respectively provided with four nozzles, and any one of the spraying covering parts of the first pressure stabilizing cylinder is mutually isolated from any one of the spraying covering parts of the second pressure stabilizing cylinder.
6. The injection apparatus for a cold rolling plant according to any one of claims 1 to 5, wherein the inside of said surge tank is used for conducting compressed air, and any one of said nozzles is used for injecting said compressed air;
the pressure of the compressed air is 0.6 to 0.8Mpa, and the total flow rate of the compressed air is 20 cubic meters per minute.
7. The injection apparatus for a cold rolling plant according to any one of claims 1 to 5, wherein the nozzle has a connection end and an injection end at both ends thereof, the connection end is connected with the pressure stabilizing cylinder, and the injection end is disposed outside the pressure stabilizing cylinder;
a flowing cavity is arranged between the connecting end and the spraying end, the connecting end is provided with an injection opening, and the spraying end is provided with a circular spraying hole.
8. The injection apparatus for a cold rolling plant according to claim 7, wherein at least two spiral grooves are provided on the inner wall of said nozzle enclosing said flow chamber;
any one of the spiral grooves extends from the connecting end to the spraying end respectively.
9. The injection apparatus for a cold rolling plant according to claim 7, wherein at least two of said circular orifices are provided on said nozzle;
the spraying covering parts of the two adjacent circular spray holes are in a mutually convergent state.
10. The injection apparatus for a cold rolling plant according to claim 7, wherein said nozzle is welded or detachably provided on said surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141128.0U CN211161217U (en) | 2019-12-03 | 2019-12-03 | Injection device for cold rolling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141128.0U CN211161217U (en) | 2019-12-03 | 2019-12-03 | Injection device for cold rolling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211161217U true CN211161217U (en) | 2020-08-04 |
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ID=71825072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922141128.0U Active CN211161217U (en) | 2019-12-03 | 2019-12-03 | Injection device for cold rolling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211161217U (en) |
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2019
- 2019-12-03 CN CN201922141128.0U patent/CN211161217U/en active Active
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