KR200421778Y1 - Pressure automatic regulator of pressure bath using pressure sensor - Google Patents

Abstract

The present invention relates to a pressure automatic control structure of a pressure shaker, and specifically, a pressure sensor and an indicator controller are installed in the shaker in order to automatically discharge the internal pressure during the tapping machine to adjust and maintain the target pressure value. When the internal pressure reaches the target pressure value, the pressure is discharged by driving the connected electric ball valve, and the pressure discharge operation is repeated to maintain the target pressure value for a predetermined time. It is characterized by the structure of a pressure bath automatic pressure regulating system having an alarm system that notifies the operator of an abnormality by using a bell or / and lamp when lowered.

Pressure Bath Machine, Pressure Sensor, Indicator Controller, Electric Valve, Pressure, Automatic Control

Description

Pressure automatic regulator of pressure bath using pressure sensor {omitted}

1 is a sequence diagram of the pressure automatic control device of the present invention.

Figure 2 is a state diagram showing the use state of the pressure sensor, indicator control system and electric valve of the present invention.

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<Description of Codes Used in Main Parts of Drawings>

10: Pressure sensor symbol 11: Upper limit contact symbol of indicating controller

12: Electric valve symbol 13: Switch symbol

14: Lower contact symbol of the indicating controller 15: b contact symbol of the switch

16: Output device (BZ: Buzzer, SL: Signal Lamp)

18: pressure sensor

20: sensor unit including a sensor for detecting the internal pressure of the shaker
21: processing unit consisting of an indication controller and a pressure release switch having an upper limit, a lower limit contact and an alarm output contact

22: Output to activate motorized valves and alarms (bells and / or lamps)

23: signal processing line connecting the detection unit 20 to the processing unit 21 and the processing unit 21 to the output unit 22

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The present invention relates to a pressure automatic discharge structure of a pressure bath using a high pressure, and in particular to install a pressure sensor and an indicator controller in the water dispenser in order to automatically discharge the pressure inside the water dispenser to adjust and maintain the target pressure value, According to the present invention relates to a structure that can operate the electric valve to reach the upper limit of the contact point to automatically discharge the pressure, when it reaches the lower limit contact point to ring the bell or turn on the lamp to provide an opportunity to cope with mechanical failure during the power failure. .

In general, the pressure bath uses a gas heating chamber, an electric heater method, the temperature inside the water bath rises to a target temperature, and the pressure inside the water bath increases as the temperature rises. Therefore, in order to maintain a constant temperature and pressure while maintaining a discharge time, the structure which controls the internal temperature and pressure suitably is needed.

Accordingly, the operator needs to manually open the pressure on / off valve to adjust the internal pressure. This manual method is difficult to quantitatively work on oil fields, and has a dangerous work method that relies solely on the operator to prepare for pressure-related accidents.

In addition, different medicines are prescribed and formulated differently according to the dispensing time, temperature and pressure should be set differently. The operation of the water bath is controlled electronically with respect to the time of discharging and the temperature of discharging, but most of the work on pressure discharge and maintenance depends on the worker. In relying on the pressure release and maintenance to the worker has a factor that will cause problems in the efficacy of the tangje according to the skill of the worker, concentration of work.

In addition, the problem of pressure drop due to the temperature drop due to problems such as gas fire intensity and electric heater insulation, which affect the heating method of the water heater, and the medicine feeder and the water heater when the pressure rises because the water lock device does not maintain the normal lock state. There is a problem that the pressure drops due to the gap between the body and the pressure leaks out, and the worker cannot respond in a timely manner unless the worker finds it directly.

Finally, most of the current baths have a reservation function. The difficulty in applying the reservation function to the pressure bath is that the operator must manage the pressure control. If there is no operator when the reservation is set and the work starts from the scheduled time, the pressure inside the bath will continue to rise.In case of an accident caused by the pressure, the actions taken will be mechanical damage, medicine damage, rework, delayed delivery to the patient It is a significant loss.

The present invention is to improve the problems as described above more efficiently, the purpose of the present invention is to check the pressure from time to time of the operator and to operate the switchgear manually without adjusting the pressure to the pressure inside the water bath to the target pressure It is to provide a system that ensures the reliability of work by providing a pressure automatic control system that can be kept constant through the quantitative work of the hot water.

Another object of the present invention is to provide the electrician to set the upper and lower limits of the pressure in the mixer in ironing the medicine of the mixer, the automatic pressure control and maintenance at the upper limit, the bell or / and lamp at the lower limit mechanical (temperature It is to provide an operator with an opportunity to properly cope with abnormalities. In addition, the automatic pressure adjustment system is applied to the oil filling operation after setting the reservation, and thus the reliability of the oil is added by maintaining the target pressure and completing the oil filling operation even in the absence of the operator.

1 is a basic operation procedure diagram applicable when applying the pressure bath of the present invention. The upper limit, the lower limit, and the alarm contact point appropriate for the chemical agent are set (10) before the oil discharge operation, and the oil leakage is started. The temperature rises when the oil starts, and the pressure starts to rise after a certain time. When the pressure reaches the upper limit contact, the electric valve is operated by the contact operation, the pressure is discharged, and is repeatedly performed to maintain the target pressure (11). When the pressure reaches the lower limit or the alarm contact due to mechanical abnormality during the power discharging operation, an alarm (bell or / and lamp) is activated by the contact operation (12, 13). After the abnormal operation process to perform the discharging operation again, after the discharging operation is completed and discharge the medicine to operate the pressure discharge switch for discharging the residual pressure, the discharging operation is terminated by performing the cleaning operation by opening the weak water dispenser.

Figure 2 is a basic block diagram for applying the pressure bath machine of the present invention. The detection unit includes a pressure sensor, and the pressure sensor outputs a 4-20 mA signal according to the internal pressure of the water bath to the indication controller of the processing unit 20, and the processing unit 21 instructs to set an upper limit, a lower limit contact, and an alarm contact. It consists of a control system and a pressure discharge switch capable of discharging the internal pressure in the event of residual pressure discharge or mechanical abnormality. It consists of an output device (bell or / and lamp) that outputs an alarm when the alarm contact is activated. The signal line 23 also displays the signal direction from the detector to the processor and from the processor to the output.

Figure 3 is a basic sequence diagram for applying the pressure bath machine of the present invention. The indicator control system 30 installed in the pressure water heater displays the 4-20 mA signal output from the pressure sensor 38 at a constant pressure, and operates the electric valve 32 when the upper limit contact 31 is operated and the pressure discharge switch 33 is operated. Will actuate the pressure. The alarm 36 operates when the lower limit contact 34 and the alarm contact 37 operate to inform the worker of an abnormal operation. However, operate the pressure discharge switch 33 so that the alarm 36 does not operate when the pressure is discharged or the pressure discharge switch 33 b contact is released to release the alarm 36 by the pressure discharge after the alarm 36 operates. It works.

When the pressure automatic control system according to the present invention is used, the problems of the manual retractable valve used to discharge the pressure inside the mixer in the conventional pressure mixer structure, that is, the operation for the operator to directly control and maintain the pressure from time to time At the same time, it is an efficient task to solve the problem of quantitative work such as the pressure control amount depending on the skill and concentration of the operator, and the problem that one person must adjust the pressure even if the reservation is set. It will be possible to secure reliability of both oil and oil.

In addition, according to the pressure upper limit of the present invention, the upper limit of automatic pressure adjustment according to the lower limit setting method, the lower limit alarm. That is, by using bells and / or lamps, the operator can cope with mechanical failures (such as reduced fire intensity or poor insulation of the heater, pressure drop due to pressure drop, or temperature drop due to electric shut-off) that can be caused by the operator. The effect of minimizing this will also be secured.

Claims (2)

The output signal of the pressure sensor 18 for maintaining the internal pressure of the pressure mixer during the discharge operation is transmitted to the input of the indicator controller 10, and the electric valve according to the operation of the upper limit contact 11 of the indicator controller 10. (12) Upper limit contact 11 due to opening (pressure drop) and pressure release 11 Electric valve 12 closing structure (pressure rise) due to dropping and general for opening electric valve 12 for discharging residual pressure at the end of work Switch (13) connection structure. Output device that outputs an alarm when operating the lower limit contact 14 due to pressure drop due to mechanical failure (decrease in intensity of fire or poor insulation of heater, pressure leakage, temperature drop due to electric shutoff) And / or lamp) (16) operating structure and output device (16) preventive connection structure by actuating the lower limit contact (14) when the general switch (13) for releasing residual pressure at the end of work is in operation.

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