公开(公告)号：US10352479B2

公开(公告)日：2019-07-16

申请号：US15309020

申请日：2014-09-11

Applicant: Flowtech Co., Ltd. ,  Jae Gu Yang

Inventor： Jae Gu Yang ,  Jai Youl Yang ,  Jae Wook Oh ,  Ji Suk Yang

IPC: F16K15/03 ,  F16K47/02

Abstract: The present invention relates generally to a parallel cylinder-type check valve and, more particularly, to a parallel cylinder-type check valve in which two shock-absorbing dampers are connected in parallel to each other so as to absorb shock when a valve is closed, wherein the length of a rocker arm connected to any one shock-absorbing damper is adjusted to be longer according to the principle of a lever in order to provide a sufficient shock-absorbing effect. Also, the present invention relates to a parallel cylinder-type check valve, which is rapidly closed at a high speed at the time of the initial closing of the valve and is slowly closed at a low speed at the later closing of the valve by means of the parallel cylinder, thereby preventing noise and vibration, as well as preventing water hammer.

公开(公告)号：US20130025696A1

公开(公告)日：2013-01-31

申请号：US13640646

申请日：2011-06-09

Applicant: Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

Inventor： Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

IPC: F17D3/00

CPC classification number: F16L55/05 ,  F24D3/1033 ,  F24D10/00 ,  F24D19/1036 ,  G05D16/204 ,  Y02E20/14 ,  Y10T137/0396 ,  Y10T137/3124 ,  Y10T137/3127

Abstract: The present invention relates to a method of controlling pressure maintenance equipment for a cooling and heating system. More particularly, the present invention relates to a method of operating and controlling, under optimum conditions, pressure maintenance equipment with multiple sensors so as to check for irregularities in the sensors which measure the same physical parameter. In the present invention, measurement values of two or more sensors are used to detect whether an abnormality has occurred in any sensor. If a sensor is determined to be abnormal, a measurement value of the abnormal sensor is excluded when determining a reference control value. Thereby, the pressure can be precisely and reliably controlled in response to actual conditions of the system.

Abstract translation: 本发明涉及一种控制冷却和加热系统的压力维持设备的方法。 更具体地，本发明涉及一种在最佳条件下操作和控制具有多个传感器的压力维持设备，以便检查测量相同物理参数的传感器中的不规则性的方法。 在本发明中，使用两个以上的传感器的测量值来检测是否在任何传感器中发生异常。 如果确定传感器异常，则在确定参考控制值时排除异常传感器的测量值。 因此，可以根据系统的实际情况精确可靠地控制压力。

公开(公告)号：US20130000739A1

公开(公告)日：2013-01-03

申请号：US13583633

申请日：2011-03-02

Applicant: Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh ,  Mi Jung Kim

Inventor： Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh ,  Mi Jung Kim

IPC: F17D3/00

CPC classification number: G01F23/0061 ,  G01F25/0061 ,  Y10T137/0329

Abstract: Disclosed herein is a method of controlling the water level of a pressure tank of a piping system. The piping system includes a pressure tank, level sensors, a gas supply device, a supply valve and an exhaust valve. The method includes: measuring the water level; calculating absolute values of difference values between water level measurement values measured by the level sensors, thus obtaining measurement deviation values; comparing the measurement deviation values with a preset deviation value; determining whether an abnormality has occurred in each level sensor; outputting the mean of the measurements of the level sensors, while excluding the measurement of an abnormal level sensor(s), as a reference water-level-control value; and comparing the reference water-level-control value with a preset reference water level value, and determining whether to raise or lower the water level, and supplying gas into the pressure tank or exhausting gas therefrom.

Abstract translation: 本文公开了一种控制管道系统的压力罐的水位的方法。 管道系统包括压力罐，液位传感器，气体供应装置，供给阀和排气阀。 该方法包括：测量水位; 计算由水位传感器测量的水位测量值之间的差值的绝对值，从而获得测量偏差值; 将测量偏差值与预设偏差值进行比较; 确定每个水平传感器中是否发生异常; 输出水平传感器的测量值的平均值，同时排除异常水平传感器的测量值作为参考水位控制值; 将基准水位控制值与预先设定的基准水位值进行比较，判断是否升高或降低水位，并将气体从压力罐供给到排气气体中。

公开(公告)号：US08991417B2

公开(公告)日：2015-03-31

申请号：US13640646

申请日：2011-06-09

Applicant: Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

Inventor： Jae Gu Yang ,  Ji Suk Yang ,  Sang Ki Oh

IPC: F16K24/04 ,  F16L55/05 ,  G05D16/20 ,  F24D3/10 ,  F24D19/10 ,  F24D10/00

CPC classification number: F16L55/05 ,  F24D3/1033 ,  F24D10/00 ,  F24D19/1036 ,  G05D16/204 ,  Y02E20/14 ,  Y10T137/0396 ,  Y10T137/3124 ,  Y10T137/3127

Abstract: The present invention relates to a method of controlling pressure maintenance equipment for a cooling and heating system. More particularly, the present invention relates to a method of operating and controlling, under optimum conditions, pressure maintenance equipment with multiple sensors so as to check for irregularities in the sensors which measure the same physical parameter. In the present invention, measurement values of two or more sensors are used to detect whether an abnormality has occurred in any sensor. If a sensor is determined to be abnormal, a measurement value of the abnormal sensor is excluded when determining a reference control value. Thereby, the pressure can be precisely and reliably controlled in response to actual conditions of the system.

Abstract translation: 本发明涉及一种控制冷却和加热系统的压力维持设备的方法。 更具体地，本发明涉及一种在最佳条件下操作和控制具有多个传感器的压力维持设备，以便检查测量相同物理参数的传感器中的不规则性的方法。 在本发明中，使用两个以上的传感器的测量值来检测是否在任何传感器中发生异常。 如果确定传感器异常，则在确定参考控制值时排除异常传感器的测量值。 因此，可以根据系统的实际情况精确可靠地控制压力。

公开(公告)号：US20130160862A1

公开(公告)日：2013-06-27

申请号：US13821193

申请日：2011-06-09

Applicant: Jae Gu Yang ,  Ji Suk Yang

Inventor： Jae Gu Yang ,  Ji Suk Yang

IPC: G01F23/00

CPC classification number: G05D9/12 ,  G01F25/0061 ,  Y10T137/0324

Abstract: Disclosed herein is a method of controlling a water level of a pressure tank of a piping system. The piping system includes the pressure tank, a level transmitter, a first level switch disposed on a low-level-alarm line, a second level switch disposed between the low-level-alarm line and a lower limit line of an optimal level range, a third level switch disposed between a high-level-alarm line and an upper limit line of the optimal level range, and a fourth level switch disposed on a high-level-alarm line. The method includes receiving a level measurement value from the level transmitter; receiving and checking ON/OFF signals of the level switches; comparing the level measurement value with the ON/OFF signals; determining whether an abnormality has occurred in the level transmitter, and determining whether to raise or lower the water level; and supplying gas to the pressure tank or exhausting gas therefrom.

Abstract translation: 本文公开了一种控制管道系统的压力罐的水位的方法。 管道系统包括压力罐，液位变送器，设置在低电平报警线路上的第一级开关，设置在低电平报警线和最佳电平范围的下限线之间的第二电平开关， 设置在高电平报警线和最佳电平范围的上限线之间的第三电平开关，以及设置在高电平报警线上的第四电平开关。 该方法包括从电平变送器接收电平测量值; 接收和检查电平开关的ON / OFF信号; 将电平测量值与ON / OFF信号进行比较; 确定在液位变送器中是否发生异常，并确定是否升高或降低水位; 并向压力罐供给气体或从其排出气体。