KR101388881B1 - EGW Cooling apparatus control system and method thereof - Google Patents

Abstract

The present invention relates to a chiller control system and method for easy double oil, and more particularly, a copper immersion unit connected to the vortex tube portion, a throttle valve and a control unit installed in the vortex tube portion, suitable for welding the temperature of the copper immersion portion. The present invention relates to a cooling system control system for an easy double oil control method and a method for controlling the set temperature.
In the cooling system for an easy double oil cooling apparatus of the present invention, a cooling system of an air-cooled copper quenching apparatus, comprising: a vortex tube unit configured to receive compressed air and generate cold and warm air through a cold / hot air generating chamber; A copper immersion unit for receiving the cold air output from the vortex tube unit and circulating the cold air through a pipe flow path formed inside the body; A throttle valve capable of continuously opening angle adjustment to discharge the warmth generated from the compressed air input to the vortex tube part; And a controller configured to sense a physical parameter from the compressed air and the output cold air and to control a valve angle of the throttle valve to adjust the physical parameter value.
According to the control system and method for an easy double oil cooler of the present invention, a copper immersion part of a serpentine flow field developed to optimize the air cooling efficiency by using a vortex tube that changes compressed air to 0 ° C. or less. By automatically controlling the temperature of the circulating air (cold air) of the air-cooled EGW cooling system that circulates the cooled air inside, it is possible to prevent melting of the copper alloy part, to improve productivity of the EGW welding, and to ensure the integrity of the weld part.

Description

EGW Cooling apparatus control system and method

The present invention relates to a chiller control system and method for easy double oil, and more particularly, a copper immersion unit connected to the vortex tube portion, a throttle valve and a control unit installed in the vortex tube portion, suitable for welding the temperature of the copper immersion portion. The present invention relates to a cooling system control system for an easy double oil control method and a method for controlling the set temperature.

In general, EGW (Electro gas welding) is one of the typical high heat input welding method with the submerged arc welding (SAW). However, EGW is a high heat input welding method that is generally applied to vertical butt welds. Unlike SAW, EGW has to cool the topping device and torch installed in the welding improvement part.

Figures 1 to 3 and 7 shown below is a schematic view of a conventional water-cooled copper quenching device and its cross-sectional view for the EGW, Figure 4 is a photograph and specification of the conventional cooling water circulation device, Figures 5 and 6 are air-cooled copper quenching device A perspective view and cross-sectional view of the operation principle of a vortex tube to form cooling air for air cooling.

Usually air cooled systems using vortex tubes require compressed air of at least 2 bar. Shipyard sites typically use more than 7 bar of compressed air.

In the case of supplying compressed air of 20 ° C. and 7 bar to the vortex tube, air cooled to about −10 ° C. and air heated to about 70 ° C. are discharged to the outlet of the vortex tube having a 60% cold air ratio.

As described above, a water-cooled copper immersion apparatus is disclosed in Korean Unexamined Patent Publication No. 2010-0047928 (water-cooled copper immersion capable of generating ultrasonic waves).

As shown in FIG. 7, the water-cooled copper alloy capable of generating the ultrasonic wave includes a backing backing material installed at the rear of the weld part of the two base materials; A water-cooled copper immersion unit installed at the front of the welded part of the base material and having a gas supply and cooling function; In the electrogas welding apparatus consisting of a welding torch for supplying a wire to the welding portion, the ultrasonic generator (5) is attached to the inner surface of the water-cooled copper alloy (3) adjacent to the welding portion of the two base materials to be melted by arc It provides a configuration to ensure that the metal is completely mixed just before it is solidified by forced stirring by ultrasonic.

However, the above-described technique cannot quantitatively check the temperature and the increased coolant of the surface of the copper immersion device in contact with the weld by the water-cooled cooling system. Generally, the cooling water used for the cooling of the copper immersion device is immediately and automatically controlled from the outside. There is a problem in that it is impossible to replenish the surface of the copper quench device and the temperature rise of the coolant actively.

In order to solve the above problems, the present invention provides a copper immersion unit connected to a vortex tube unit, a throttle valve installed on a vortex tube unit, a plurality of sensors and a control unit using an easy double oil cooler control system and a method thereof. The present invention provides a cooling system control system for an easy double oil and a method for maintaining a set temperature suitable for sensing and welding a negative temperature.

In the cooling system for an easy double oil cooling apparatus of the present invention for solving this problem, the cooling system of the air-cooled copper quenching device, the vortex tube unit for receiving the compressed air and generates cold and warm air through the cold / warm air generating chamber; A copper immersion unit for receiving the cold air output from the vortex tube unit and circulating the cold air through a pipe flow path formed inside the body; A throttle valve capable of continuously opening angle adjustment to discharge the warmth generated from the compressed air input to the vortex tube part; And a controller configured to sense a physical parameter from the compressed air and the output cold air and to control a valve angle of the throttle valve to adjust the physical parameter value.

Here, the cold air output from the vortex tube portion is supplied to the torch portion for welding through a hose connected to the cold air outlet portion.

In addition, the physical parameters are temperature and pressure, and a plurality of temperature sensors and pressure sensors for sensing the physical parameters are formed in pairs, respectively, and are installed in the compressed air input unit, torch unit inlet, and copper filler unit.

The control unit may include a motor and control a motor interlocked with the throttle valve according to a signal sensed by the plurality of temperature sensors, and if the temperature sensed by the temperature sensor of the copper part is greater than or equal to a set temperature, the valve of the throttle valve. Control the angle to the set temperature, or if the sensed temperature is below the set temperature, control the valve angle of the throttle valve to raise it to the set temperature.

In addition, the copper immersed portion forms a cold passage in the shape of a sand-shaped flow path therein to uniformly cool the copper immersed portion.

In addition, the vortex tube unit is coupled to the throttle valve to adjust the amount of warmth provided with a connector at the end of the warmth is discharged.

In addition, the control unit is provided with a display to display the temperature sensed by each temperature sensor to alert the operator to the abnormal temperature.

In addition, the method for controlling an easy double oil cooling apparatus of the present invention for solving such a problem is a method for controlling an air-cooled copper immersion control system including a copper lactose portion, a torch portion, a vortex tube portion and a control portion, (a) the control unit Receiving a temperature sensed by a temperature sensor installed in the copper sugar part; (b) the control unit determining whether the received temperature is higher than a set temperature suitable for welding; (c) if the temperature is higher than the set temperature, the control unit using a motor to turn the valve angle of the throttle valve counterclockwise to increase cold air to decrease the temperature; And (d) decreasing the temperature of the copper plating part to a set temperature as the temperature is lowered.

Here, in the step (b), if the received temperature is less than the set temperature suitable for welding, the controller rotates the valve angle of the throttle valve clockwise by using a motor to reduce the cold air to increase the temperature of the copper part Maintaining a temperature.

According to the control system and method for an easy double oil cooler of the present invention, a copper immersion part of a serpentine flow field developed to optimize the air cooling efficiency by using a vortex tube that changes compressed air to 0 ° C. or less. By automatically controlling the temperature of the circulating air (cold air) of the air-cooled EGW cooling system that circulates the cooled air inside, it is possible to prevent melting of the copper alloy part, to improve productivity of the EGW welding, and to ensure the integrity of the weld part.

In addition, according to the control system and the method for the easy double oil cooling apparatus of the present invention, by providing a plurality of sensors to control the surface temperature of the copper plating portion suitable for welding to the set temperature, the rapid control according to the minimum response characteristics It is possible to implement highly reliable products.

1 is a view showing a perspective view and a real picture of a conventional water-cooled copper immersion apparatus for EGW (Electro gas welding),
Figure 2 is a perspective view and a detailed cross-sectional view of the water-cooled copper immersion apparatus for EGW (Electro gas welding) according to FIG.
Figure 3 is a detailed view of the water-cooled copper immersion apparatus for EGW (Electro gas welding) according to the prior art,
Figure 4 is a view showing the external appearance and specifications of the cooling water circulation device of the conventional water-cooled copper immersion apparatus for EGW (Electro gas welding),
5 is a schematic view of the operation principle of the conventional vortex tube (Vortex tube),
6 is a cross-sectional schematic diagram of a conventional vortex tube (Vortex tube),
7 is a perspective view of a conventional water-cooled copper immersion apparatus,
8 is an overall configuration diagram of a cooling device control system for an air-cooled easy double oil (EGW) according to the present invention;
9 is a combined view of the chiller control system for air-cooled easy double oil (EGW) shown in FIG.
FIG. 10 is a sectional view and a perspective view of a shape of a sand flow passage of the copper plating part shown in FIG. 9;
FIG. 11 is an enlarged view of a circulating air control unit at the end of the vortex tube unit shown in FIG. 9,
12 is a view in which a throttle valve and a control case for the circulating air control shown in FIG. 9 are fixed to a tube;
FIG. 13 is a schematic diagram illustrating a combination of a vortex tube part shown in FIG. 9 and a copper filler part having a sand-shaped flow path shape;
14 is a control flowchart of a cooling system control system for an air-cooled easy double oil (EGW) according to the present invention;

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

8 is an overall configuration diagram of a chiller control system for an air-cooled easy double oil (EGW) according to the present invention, FIG. 9 is a combined view of a chiller control system for an air-cooled easy double oil (EGW) shown in FIG. 8, and FIG. 9 is a cross-sectional view and a perspective view of a shape of a sand flow passage of the copper plating part shown in FIG. 9, and FIG. 11 is an enlarged view of a circulating air control unit at the end of the vortex tube part shown in FIG. 9, and FIG. 12 is a circulating air control shown in FIG. 9. The throttle valve and the control case for the drawing is fixed to the tube, Figure 13 is a schematic view combined with a vortex tube portion and a sand-shaped flow path shown in Figure 9, Figure 14 is an air-cooled easy double oil according to the present invention ( Control flow chart of the chiller control system for EGW.

8 to 13, the cooling system control system 100 for an air-cooled easy double oil (EGW) according to the present invention is a cooling system of an air-cooled copper immersion apparatus, and includes a vortex tube unit 110 and a copper immersion unit 120. , The torch unit 130, the throttle valve 140, the motor 150, and the controller 160 are configured.

The vortex tube unit 110 flows the compressed air input unit 111 that receives compressed air from the outside, the generator housing 110c that generates cold / hot air from the input compressed air, and the generated cold / hot air in opposite directions, respectively. It comprises a tube (110a) and a nylon connector (110b) consisting of a body forming a sending passage, the body serves as a production chamber to create a cooling / warmth to rotate like a tornado.

The nylon connector 110b is coupled to and fixed to the throttle valve housing 140a having the throttle valve 140 provided at the end of the vortex tube unit 110 through which the warm air is discharged, and controlling the amount of warm air discharge.

The copper part 120 receives the cold air output from the cold air outlet 112 of the vortex tube unit 110 through a hose or a pipe, and the cold air is formed in a pipe-like flow path 120c having a sand-shaped flow path inside the body. By forming a passage to circulate the cold air to cool the copper part 120 uniformly.

The cold air is discharged through the inlet 120a of the copper part 120 to the outlet 120b directly contacting the outside air via the pipe flow path 120c or connected to an external device (not shown).

Here, the gas supply inlet 120d of the copper part 120 may be connected to a separate cooling device when the inlet 120a or the cooling device control system 100 of the present invention has failed.

In addition, the cold air output from the cold air outlet 112 of the vortex tube unit 110 is supplied to the torch unit 130 for welding through a hose or pipe to cool the torch.

The throttle valve 140 is provided with a throttle valve position sensor (not shown) to continuously adjust the opening angle (valve angle) and the warmth generated from the compressed air input to the vortex tube unit 110 to the warmth outlet portion ( Through 113).

The controller 160 may be integrated with or separate from the motor 150, and the motor 150 is coupled to and interlocked with the throttle valve 140 through a linkage and controlled by the controller 160. .

In addition, the compressed air input unit 111 of the vortex tube unit 110 is provided with a pair of the first temperature sensor (A) and the first pressure sensor (B) in order to sense physical parameters such as temperature and pressure. In addition, the second temperature sensor (C) and the second pressure sensor (D) is installed in a pair inside the copper part 120, and the third temperature sensor (E) and the third at the inlet of the torch unit (130). A pair of pressure sensors (F) is installed to sense the temperature and pressure of the cold air.

The controller 160 displays the temperature and pressure sensed through the sensors A, B, C, D, E, and F in real time, and has a minimum response time for the set temperature using the respective temperatures and pressures. The opening angle control of the throttle valve controls the respective temperatures and pressures.

That is, when the temperature sensed by the copper part 120 exceeds (or exceeds) the set temperature, the controller 160 rotates the valve angle (opening angle) of the throttle valve in a counterclockwise direction to discharge small warm air and simultaneously cool air. Lower the temperature of the copper immersion part 120 to set the temperature by discharging a lot, and if the temperature sensed by the copper immersion part 120 is below (or below) the set temperature, the valve angle (opening angle) of the throttle valve is clocked. By turning in a direction to discharge a lot of warm air and at the same time to discharge a small cold air to raise the temperature of the copper immersion unit 120 to adjust the set temperature.

The controller 160 installs components including the CPU and the display 171 in the case 170, and the case 170 is fixed to the valve housing 140a of the throttle valve 140.

The controller 160 displays the real-time temperature sensed by each of the temperature sensors A, C, and E on the display 171, and includes an alarm to alert the operator when the temperature is abnormal so that the operator can take action. do.

Here, in FIG. 12, the clockwise direction and the counterclockwise direction are seen from the vortex tube part, and the exact operation is according to the detailed description.

Referring to Figure 14, the control flow chart of the cooling system control system for air-cooled easy double oil (EGW) of the present invention is as follows.

The chiller control system for an air-cooled easy double oil (EGW) includes a copper plating part 120, a torch part 130, a vortex tube part 110, and a controller 160.

First, the controller 160 senses and receives a real-time temperature and pressure from each of the temperature sensors and pressure sensors A, B, C, D, E, and F (S110), and the sensing and received copper part ( It is determined whether the temperature of 120 is higher than the set temperature which is a proper temperature for welding (S120). If the temperature is higher than the set temperature, the valve angle (opening angle) of the throttle valve 140 is halved using the motor 150. By turning clockwise (S130) the temperature of the cold air according to the increase in the flow of cold air (reduction of the flow of warmth) is lowered (S140) to lower the temperature of the copper immersion part 120 to the set temperature (S150).

In addition, in step S120, the controller 160 turns the valve angle of the throttle valve clockwise by using a motor to increase the warmth when the sensed temperature of the copper plating unit 120 is lower than or equal to the set temperature which is an appropriate temperature for welding. At the same time, the cold air is reduced to increase the temperature of the copper plating unit 120 to maintain the set temperature.

110: vortex tube portion 110a: tube
110b: nylon connector 110c: housing
111: compressed air input 112: cold air outlet
113: warmth outlet 120: copper
120a: entrance 120b: exit
120c: pipe flow path 120d: gas supply inlet
130: torch portion 140: throttle valve
140a: valve housing 150: motor
160 control unit 170 case
171: display

Claims (9)

In the cooling system of the air-cooled copper quenching device,
A vortex tube unit configured to receive compressed air and generate cold and warm air through a cold / warm production chamber;
A copper immersion unit for receiving the cold air output from the vortex tube part and circulating the cold air through a pipe flow path formed in a cold air passage having a shape of a sand flow path inside the body to maintain a uniform body temperature;
A throttle valve capable of continuously opening angle adjustment to discharge the warmth generated from the compressed air input to the vortex tube part; And
And a controller configured to sense a physical parameter from the compressed air and the output cold air and to control a valve angle of the throttle valve to adjust the physical parameter value.
The control unit includes a motor and controls a motor interlocked with the throttle valve according to a signal sensed by a plurality of temperature sensors, and controls the valve angle of the throttle valve when the temperature sensed by the temperature sensor of the copper part is greater than or equal to a set temperature. If it is lowered to the set temperature or the sensed temperature is less than the set temperature, the control system for easy double oil cooling device, characterized in that for increasing the set temperature by controlling the valve angle of the throttle valve.
The method of claim 1,
The cold air output from the vortex tube portion is supplied to the torch portion for welding through a hose connected to the cold air outlet portion, the cooling system for the easy double oil control system.
The method of claim 1,
The physical parameters are temperature and pressure, and a plurality of temperature sensors and pressure sensors for sensing the physical parameters are formed in pairs, respectively, and are installed in the compressed air input unit, the torch unit inlet, and the copper filler unit. Easy double cooler control system.
delete delete The method of claim 1,
The vortex tube unit is provided with a connector at the end of the warmth is released is easy system control system for coolant for easy double oil, characterized in that coupled to the throttle valve to adjust the amount of warmth.
The method of claim 1,
The control unit is provided with a display to display the temperature sensed by each temperature sensor to allow the operator to alarm the abnormal temperature, characterized in that for easy double oil cooling system control system.
delete delete

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