Jetting device for tank washing

Abstract

The present invention relates to a spray device for cleaning a tank, comprising: a moving part arranged longitudinally toward the inside of the tank from an entry hole penetrating the inside and outside of the tank, with a tip reciprocating in the longitudinal direction; a fixed part fixedly installed inside the tank, with one end of the moving part fixed to be positioned at the entry hole; a nozzle part installed at the tip of the moving part, having a nozzle that reciprocates in the longitudinal direction and sprays a cleaning liquid delivered through an internal flow path of the moving part; and a driving part installed on the outside of the tank and providing driving force to the moving part. By doing so, cleaning efficiency can be improved by spraying a cleaning liquid over a wider area of ​​the inner wall of the tank, the nozzle can move up and down reciprocatingly even if the motor rotates in one direction, and by providing a sensor that detects the cleaning liquid sprayed from the nozzle, rotational failure of the nozzle can be quickly identified remotely, thereby minimizing the risk and inconvenience to the operator.

Description

Technology Field

[0001] The present invention relates to a spray device for cleaning a tank, and more specifically, to a spray device for cleaning a tank that sprays a cleaning liquid to clean the inside of a tank. Background Technology

[0002] Generally, a tank cleaning machine is required to remove foreign substances from the inner walls of a tank after use. The tank cleaning machine can remove foreign substances from the inner walls of the tank by inserting a spray nozzle into the tank and spraying a cleaning solution from the nozzle toward the inner walls.

[0003] Conventional Korean registered patent No. 10-0844377 describes a rotary spray type water tank cleaning device that includes a cleaning port in which, when cleaning water is supplied to the upper part through a cleaning water inlet pipe, cleaning water is sprayed through a spray nozzle in the lower part connected to the upper part, so as to be able to thoroughly wash away sediment and scale by spraying cleaning water toward the bottom or inner wall of the water tank when cleaning the inside of a water tank of a village facility.

[0004] Korean Registered Utility Model Publication No. 1020-0321493 describes a rotary nozzle device for tank cleaning, having a structure in which a head part capable of independent rotation with a bearing support structure is placed at the bottom of a body part to which water pressure is applied, a spray groove is formed on the outer circumference of the head part and a nozzle is formed through the inside thereof, and the spray groove is formed inclined toward the direction of rotation so that propulsion force can be obtained as water is ejected, and water can be ejected across the entire inner wall of the tank as the head part rotates.

[0005] Korean Utility Model Publication No. 20-2012-0004343 describes a non-powered rotary spray nozzle device characterized by a central body to which a spray nozzle is coupled around a rotation axis rotating due to the repulsive force of cleaning water sprayed through a spray nozzle.

[0006] Conventional tank cleaning nozzles adopted a rotating method to more effectively clean the inside of the tank, but there were problems such as malfunctions where the nozzle only sprayed without rotating. In particular, when the tank was very large, there was the risk and inconvenience of having to climb to the top of the tank to monitor the rotation of the nozzle.

[0007] Furthermore, even if the tank cleaning nozzle rotates inside the tank, there are areas on the inner wall that the cleaning liquid sprayed from the nozzle cannot directly reach, resulting in reduced cleaning efficiency; therefore, there is a need for a method to spray the cleaning liquid more effectively. The problem to be solved

[0008] In order to solve the problems of the background technology described above, the present invention aims to provide a tank cleaning spray device that improves cleaning efficiency by spraying a cleaning liquid over a wider area of ​​the inner wall of the tank by moving the nozzle up and down.

[0009] In addition, the present invention aims to provide a tank cleaning spray device that allows the nozzle to move up and down reciprocatingly even when the motor rotates in one direction by utilizing a reverse cam.

[0010] In addition, the present invention aims to provide a tank cleaning spray device equipped with four nozzles and rotating two at a time separately, thereby enabling the inner wall of the tank to be cleaned in a shorter time.

[0011] In addition, the present invention aims to provide a tank cleaning spray device that minimizes danger and inconvenience to the operator by equipping it with a sensor that detects the cleaning liquid sprayed from the nozzle, thereby enabling the rapid remote detection of rotational failure of the nozzle. means of solving the problem

[0012] The tank cleaning spray device of the present invention for solving the above-mentioned problem is a tank cleaning spray device for spraying a cleaning liquid to clean the inside of a tank, comprising: a moving part arranged in a longitudinal direction toward the inside of the tank from an entry hole penetrating the inside and outside of the tank, and having a tip that reciprocates in the longitudinal direction; a fixed part fixedly installed inside the tank, with one end of the moving part fixed to be positioned at the entry hole; a nozzle part installed at the tip of the moving part, having a nozzle that reciprocates in the longitudinal direction and sprays the cleaning liquid delivered through an internal flow path of the moving part; and a driving part installed on the outside of the tank and providing driving force to the moving part.

[0013] Preferably, the moving part comprises: a rotating shaft that is arranged longitudinally from the entry hole toward the interior of the tank, has a screw groove formed on its outer surface, and rotates by receiving driving force from the driving part; a moving nut formed in a ring shape that surrounds the outer circumference of the rotating shaft, has a nut projection formed on its inner surface that is inserted into the screw groove, and the nut projection moves along the screw groove and reciprocates longitudinally on the outer side of the rotating shaft; and a moving shaft that extends longitudinally at the tip of the moving nut and reciprocates longitudinally together with the moving nut.

[0014] Preferably, the rotary shaft has the screw groove formed as a reverse cam screw groove and receives a rotational driving force that rotates in one direction from the driving unit and rotates in one direction, and the movable nut has the nut projection move along the reverse cam screw groove and reciprocates in the longitudinal direction.

[0015] Preferably, the fixing member comprises: a flange member fixedly installed on the outer surface of the entry hole; a fixing flange member composed of first and second fixing flanges arranged to surround the circumference of both ends of the rotating shaft and fixing the position so that the rotating shaft can rotate; a fixing member installed to connect the first and second fixing flanges and fixing the distance between the first fixing flange and the second fixing flange; and a guide member arranged in the longitudinal direction on the outer side of the rotating shaft and guiding the reciprocating motion of the moving nut.

[0016] Preferably, the guide members are arranged such that a first guide and a second guide are positioned opposite each other, with one end fixed to the first fixed flange and the other end fixed to the second fixed flange.

[0017] Preferably, the first and second guides are positioned through the movable nut so that the movable nut does not rotate while reciprocating in the longitudinal direction.

[0018] Preferably, it further includes a sensor unit having a sensor installed at a position where it is sprayed from the nozzle and detects the rotational state of the nozzle.

[0019] Preferably, the sensor unit comprises: a sensor body installed on the outside of the entry hole; a rotation detection sensor installed to be exposed on the inside of the tank and detecting a cleaning liquid sprayed from the nozzle using a piezoelectric switch; a sensing indicator light that lights up when the rotation detection sensor detects rotation of the nozzle; and a power member installed inside the sensor body to provide power to the rotation detection sensor and the sensing indicator light.

[0020] Preferably, the rotation detection sensor includes a first sensor installed in the entry hole and a second sensor installed on the inner surface of the tank.

[0021] Preferably, the sensor unit further includes a separate controller that receives and manages information regarding whether the nozzle rotation is detected by the first sensor and the second sensor. Effects of the invention

[0022] According to the tank cleaning spray device of the present invention, by moving the nozzle up and down, the cleaning liquid can be sprayed over a wider area of ​​the inner wall of the tank, thereby improving cleaning efficiency.

[0023] In addition, the present invention utilizes a reverse cam so that the nozzle can move up and down reciprocatingly even when the motor rotates in one direction.

[0024] In addition, the present invention is equipped with four nozzles and rotates two at a time separately, thereby allowing the inner wall of the tank to be cleaned in a shorter time.

[0025] In addition, the present invention is equipped with a sensor that detects the cleaning liquid sprayed from the nozzle, thereby enabling the rapid remote detection of rotational failure of the nozzle, which can minimize the risk and inconvenience to the operator. Brief explanation of the drawing

[0026] FIG. 1 is a perspective view showing the tank cleaning spray device of the present invention in an elongated state. FIG. 2 is a perspective view showing the tank cleaning spray device of the present invention in a shortened state. FIG. 3 is an exploded view showing the disassembled state of the tank cleaning spray device of the present invention. FIG. 4 is a cross-sectional view of a tank cleaning spray device according to the present invention. FIG. 5 is a partial cross-sectional view showing the AA section of FIG. 1. FIG. 6 is a partial cross-sectional view showing the BB cross-section of FIG. 1. FIG. 7 is a cross-sectional view showing the sensor unit and the driving unit constituting the present invention. FIG. 8 is a perspective view showing the sensor unit and the driving unit constituting the present invention. FIG. 9 is a configuration diagram showing the configuration of the sensor unit constituting the present invention. Specific details for implementing the invention

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention relates to a tank cleaning spray device for spraying a cleaning liquid to clean the inside of a tank.

[0028] FIG. 1 is a perspective view showing the tank cleaning spray device of the present invention in an elongated state, FIG. 2 is a perspective view showing the tank cleaning spray device of the present invention in a shortened state. FIG. 3 is an exploded view showing the tank cleaning spray device of the present invention in a disassembled state, FIG. 4 is a cross-sectional view of the tank cleaning spray device of the present invention, FIG. 5 is a partial cross-sectional view showing the AA cross-section of FIG. 1, FIG. 6 is a partial cross-sectional view showing the BB cross-section of FIG. 1, FIG. 7 is a cross-sectional view showing the sensor unit and the driving unit constituting the present invention, FIG. 8 is a perspective view showing the sensor unit and the driving unit constituting the present invention, and FIG. 9 is a configuration diagram showing the configuration of the sensor unit constituting the present invention.

[0029] As shown in FIGS. 1 to 6, the tank cleaning spray device according to an embodiment of the present invention is largely composed of a moving part (100), a fixed part (200), a nozzle part (300), a driving part (400), and a sensor part (500).

[0030] The moving part (100) is positioned longitudinally toward the inside of the tank from an entry hole penetrating the inside and outside of the tank, and moves so that its tip moves reciprocally in the longitudinal direction. This moving part consists of a rotating shaft (110), a moving nut (120), and a moving shaft (130).

[0031] The rotating shaft (110) is a shaft member arranged longitudinally from the entry hole toward the inside of the tank, and has a screw groove formed on its outer surface. The rotating shaft (110) receives driving force from the driving unit (400) and rotates, but does not move in the longitudinal direction. The screw groove of the rotating shaft (110) is formed as a reverse cam screw groove, so that it receives rotational driving force that rotates in one direction from the driving unit (400) and rotates in one direction.

[0032] The moving nut (120) is formed in a ring shape that surrounds the outer circumference of the rotating shaft (110), and a nut projection is formed on the inner surface that is inserted into a screw groove, and the nut projection moves along the screw groove and reciprocates along the outer side of the rotating shaft (110) in the longitudinal direction.

[0033] At this time, since the screw groove is formed as a reverse cam screw groove, even if the rotating shaft (110) rotates in one direction, the moving nut (120) can reciprocate the rotating shaft (110) in the longitudinal direction.

[0034] The moving shaft (130) is a shaft member that extends longitudinally from the tip of the moving nut (120) and reciprocates longitudinally together with the moving nut (120). The inner circumference of the moving shaft (130) is formed to be longer than the outer circumference of the rotating shaft (110). Thus, the moving shaft (130) slides relative to the rotating shaft (110) and reciprocates.

[0035] Meanwhile, tank cleaning fluid is supplied through the passages inside the rotating shaft (110) and the moving shaft (130). It is preferable to use a sealing member, such as an O-ring, to prevent the cleaning fluid from leaking through the gap between the rotating shaft (110) and the moving shaft (130).

[0036] The fixed member (200) is a fixed member that is fixedly installed inside the tank, arranged longitudinally from the entry hole toward the inside of the tank, and is fixed so that one end of the moving member (100) is positioned in the entry hole. The fixed member (200) is composed of a flange member (210), a fixed flange member (220), a fixed member (230), and a guide member (240).

[0037] The flange member (210) is a flange member fixedly installed on the outer surface of the entry hole, thereby allowing the tank cleaning spray device of the present invention to be fixed to the tank. The flange member (210) is formed wider than the entry hole and is fixed while covering the entry hole.

[0038] The fixed flange member (220) is positioned at both ends of the rotating shaft (110) to surround the circumference of the rotating shaft (110), allowing the rotating shaft (110) to rotate and fixing the position of the rotating shaft (110).

[0039] The fixed flange member (220) is composed of a first fixed flange (221) positioned on the entry hole side and a second fixed flange (222) positioned on the front end side of the rotating shaft (110). The first fixed flange (221) is fixed to the flange member (210) by screws, and the second fixed flange (222) can be fixed to the guide member (240) by screws.

[0040] The fixing member (230) is installed to connect the first and second fixing flanges (221, 222) and fix the distance between the first fixing flange (221) and the second fixing flange (222). The fixing member (230) is composed of the first and second fixing pieces (231, 232), and the first and second fixing pieces (231, 232) may be formed in a plate shape arranged opposite each other.

[0041] One end of each of the first and second fixing pieces (231, 232) is fixed to the first fixing flange (221), and the other end of each is fixed to the second fixing flange (222). This prevents the rotation axis of the rotating shaft (110) from shaking or deforming even when the rotating shaft (110) rotates.

[0042] The guide member (240) is a guide member positioned longitudinally on the outer side of the rotating shaft (110) and guides the reciprocating motion of the moving nut (120). The guide member (240) is composed of first and second guides (241, 242), and the first and second guides (241, 242) may be formed in a rod shape facing each other. At this time, it is preferable that the first and second guides (241, 242) be positioned between the first and second fixing pieces (231, 232).

[0043] One end of each of the first and second guides (241, 242) is fixed to the first fixed flange (221), and the other end of each is fixed to the second fixed flange (222) and passes through the movable nut (120). By doing so, the movable nut (120) is guided so that it does not rotate while reciprocating in the longitudinal direction.

[0044] The nozzle section (300) is installed at the tip of the moving section (100) and reciprocates in the longitudinal direction together with the moving shaft (130), and has a nozzle that sprays cleaning liquid delivered through the internal flow path of the moving section (100). The nozzle section (300) consists of a nozzle body (310), a first nozzle member (320), a second nozzle member (330), and a nozzle driving motor.

[0045] The nozzle body (310) is connected to the tip of the moving part (100), that is, the tip of the moving shaft (130). A passageway through which a cleaning liquid passes is formed inside the nozzle body (310).

[0046] The first nozzle member (320) is a nozzle member that sprays cleaning liquid received through the nozzle body (310) and includes first and second nozzles. The first and second nozzles are arranged in directions facing each other and spray cleaning liquid toward the inner surface of the tank.

[0047] The second nozzle member (330) is a nozzle member that sprays cleaning liquid received through the nozzle body (310) and includes third and fourth nozzles. The third and fourth nozzles are arranged in directions facing each other and spray cleaning liquid toward the inner surface of the tank.

[0048] The first and second nozzle members (320, 330) are arranged facing each other with respect to the nozzle body (310), so that cleaning liquid can be sprayed on both sides with respect to the nozzle body (310). This can improve the cleaning efficiency of the inner surface of the tank.

[0049] The nozzle body (310) is connected to the first and second nozzle members (320, 330) using a bevel gear, a worm gear, a helical gear, etc. As a result, the first and second nozzle members (320, 330) can rotate in opposite directions around an axis perpendicular to the nozzle body (310), and the rotational speeds of the two nozzle members can be controlled equally.

[0050] The nozzle may be composed of two or four nozzles, and the nozzle body and nozzles rotate by a separate motor or water pressure. As a result, the nozzle body rotates around a longitudinal axis, and the nozzles can rotate around an axis perpendicular to the longitudinal axis while rotating around the longitudinal axis, thereby evenly spraying the cleaning liquid onto the inner surface of the tank without blind spots, and improving cleaning efficiency.

[0051] As shown in FIGS. 7 and 8, the driving unit (400) is installed on the outside of the tank and provides driving force to the moving unit (100) so that the front end of the moving unit (100) moves back and forth. The driving unit (400) consists of a driving body (410) and a moving unit driving motor (420).

[0052] The drive body (410) is a case member positioned on the outside of the entry hole (2), and contains drive unit (400) components such as a moving part drive motor (420). The moving part drive motor (420) is a drive member positioned inside the drive body (410) and provides rotational driving force to the rotating shaft (110) of the moving part (100).

[0053] The moving part drive motor (420) can provide rotational force that rotates in one direction. At this time, the moving part drive motor (420) can use an air motor. For example, if a method is used in which the air motor is stopped to spray cleaning liquid for 5 minutes, the air motor is operated again to move the nozzle part (300), and then stopped again to spray for 5 minutes, more effective cleaning efficiency can be achieved.

[0054] As shown in FIGS. 7 to 9, the sensor unit (500) is installed at a location where the cleaning liquid is sprayed from the nozzle and reaches, and detects the rotational state of the nozzle. The sensor unit (500) consists of a sensor body (510), a rotation detection sensor (520), a sensing indicator light (530), a power supply member (540), and a controller (550).

[0055] The sensor body (510) is a case member positioned on the outside of the entry hole (2), and contains sensor unit (500) components such as a power member (540). The sensor body (510) is positioned on one side of the outer circumference of the drive body (410), and is positioned so that one side contacts the flange member (210). It is preferable that the sensor body (510) be positioned so that the rotation detection sensor (520) and the sensing indicator light (530) are exposed.

[0056] The rotation detection sensor (520) is a sensing member installed to be exposed on the inside of the tank and detects the cleaning liquid sprayed from the nozzle using a piezoelectric switch. This rotation detection sensor (520) basically includes a first sensor (521) installed on the outside of the entry hole, and the first sensor (521) is installed to be exposed on the inside of the flange member (210).

[0057] Additionally, as illustrated in FIG. 8, second to fourth sensors (522, 524) may be additionally installed on the upper, side, and lower surfaces inside the tank. The first to fourth sensors (521 to 524) may be controlled by a controller (550). First sensor (521)

[0058] The sensing indicator light (530) is a lamp member positioned to be exposed on the outside of the sensor body (510), and lights up when the rotation detection sensor (520) detects the rotation of the nozzle. It is preferable that the sensing indicator light (530) be positioned to be exposed on the outer surface of the sensor body (510) that does not come into contact with the flange member (210) and the drive body (410). This allows the operator to easily see the sensing indicator light even from outside the tank.

[0059] The power member (540) is installed inside the sensor body (510) to provide power to the rotation detection sensor (520) and the sensing indicator light (530). The power member (540) is equipped with a power switch (541) for turning the provided power ON / OFF, and it is preferable that the power switch (541) be positioned so as to be exposed on the outer surface of the sensor body (510) that does not come into contact with the flange member (210) and the drive body (410). This allows a worker to easily operate the power switch (541) from outside the tank.

[0060] The controller (550) receives and manages information regarding whether the nozzle rotation of the first to fourth sensors (521 to 524) is detected. The controller (550) may be installed inside the drive body (410) or the sensor body (510), and when operating multiple sensors, it may be provided in a separate space outside the drive body (410) and the body (510).

[0061] The tank cleaning spray device of the present invention can improve cleaning efficiency by spraying cleaning liquid over a wider area of ​​the inner wall of the tank by moving the nozzle up and down.

[0062] In addition, the present invention utilizes a reverse cam so that the nozzle can move up and down reciprocatingly even when the motor rotates in one direction.

[0063] In addition, the present invention is equipped with four nozzles and rotates two at a time separately, thereby allowing the inner wall of the tank to be cleaned in a shorter time.

[0064] In addition, the present invention is equipped with a sensor that detects the cleaning liquid sprayed from the nozzle, thereby enabling the rapid remote detection of rotational failure of the nozzle, which can minimize the risk and inconvenience to the operator.

[0065] The invention described above may be implemented in various other forms without departing from its technical concept or main features. Accordingly, the above embodiments are merely examples in all respects and should not be interpreted restrictively. Explanation of the symbols

[0066] 100 : Moving part 200 : Fixed part 300 : Nozzle part 400 : Drive unit 500 : Sensor section

Claims

Claim 1 A tank cleaning spray device for spraying a cleaning liquid to clean the inside of a tank, comprising: a movable part arranged longitudinally from an entry hole penetrating the inside and outside of the tank toward the inside of the tank, wherein the tip of the movable part reciprocates in the longitudinal direction; a fixed part fixedly installed inside the tank, wherein one end of the movable part is fixed to be positioned at the entry hole; a nozzle part installed at the tip of the movable part, which reciprocates in the longitudinal direction and has a rotating nozzle that sprays the cleaning liquid delivered through the internal flow path of the movable part; and a driving part installed on the outside of the tank and providing driving force to the movable part; wherein the movable part comprises: a rotating shaft arranged longitudinally from the entry hole toward the inside of the tank, having a screw groove formed on its outer surface, and rotating by receiving driving force from the driving part; and a moving nut formed in a ring shape surrounding the outer circumference of the rotating shaft, having a nut projection formed on its inner surface that is inserted into the screw groove, wherein the nut projection moves along the screw groove and reciprocates in the longitudinal direction on the outside of the rotating shaft. and a moving shaft extending in the longitudinal direction at the tip side of the moving nut and reciprocating in the longitudinal direction together with the moving nut; wherein the fixing member comprises: a flange member fixedly installed on the outer surface of the entry hole; a fixing flange member composed of first and second fixing flanges arranged to surround the circumference of both ends of the rotating shaft and fixing the position so that the rotating shaft can rotate; a fixing member installed to connect the first and second fixing flanges and fixing the distance between the first fixing flange and the second fixing flange; and a guide member arranged in the longitudinal direction on the outer side of the rotating shaft and guiding the reciprocating motion of the moving nut; and wherein the fixing member comprises a first fixing piece fixed in the longitudinal direction between one end of the first fixing flange and one end of the second fixing flange;A tank cleaning spray device comprising: a first guide fixed longitudinally between the other end of the first fixed flange and the other end of the second fixed flange, and a second fixed piece positioned opposite to the first fixed piece; wherein the guide member comprises: a first guide fixed longitudinally between one end of the first fixed flange and one end of the second fixed flange; and a second guide fixed longitudinally between the other end of the first fixed flange and the other end of the second fixed flange, and positioned opposite to the first guide. Claim 2 delete Claim 3 A tank cleaning spray device according to claim 1, wherein the rotating shaft has the screw groove formed as a reverse cam screw groove and receives a rotational driving force rotating in one direction from the driving unit and rotates in one direction, and the moving nut is characterized in that the nut projection moves along the reverse cam screw groove and reciprocates in the longitudinal direction. Claim 4 delete Claim 5 delete Claim 6 A tank cleaning spray device according to claim 1, wherein the first and second guides are positioned through the moving nut so as not to rotate while the moving nut reciprocates in the longitudinal direction. Claim 7 A tank cleaning spray device according to claim 1, further comprising: a sensor unit having a sensor installed at a position reached by spraying from the nozzle and detecting the rotational state of the nozzle. Claim 8 A tank cleaning spray device according to claim 7, wherein the sensor unit comprises: a sensor body installed on the outside of the entry hole; a rotation detection sensor installed to be exposed on the inside of the tank and detecting a cleaning liquid sprayed from the nozzle using a piezoelectric switch; a sensing indicator light that lights up when the rotation detection sensor detects rotation of the nozzle; and a power member installed inside the sensor body and providing power to the rotation detection sensor and the sensing indicator light. Claim 9 A tank cleaning spray device according to claim 8, characterized in that the rotation detection sensor comprises a first sensor installed in the entry hole and a second sensor installed on the inner surface of the tank. Claim 10 A tank cleaning spray device according to claim 9, wherein the sensor unit further comprises a separate controller that receives and manages information regarding whether the nozzle rotation is detected by the first sensor and the second sensor.

Images