Patent Publication Number: US-2011049402-A1

Title: Adaptive Controller of Auma MOV&#39;s Actuator

Description:
FIELD OF THE INVENTION 
     The present invention relates to an adaptive controller; more particularly, relates to using a valve open/close unit, a torque switch unit and a diagnostic control unit on a panel to test and operate an actuator of auma motor operated valve (MOV) with jigs easily. 
     DESCRIPTION OF THE RELATED ARTS 
     Electric actuators used in a nuclear power plant have to pass through thrust diagnostic test periodically, where current clamps or alligator clips are used to measure current signals from motor and those obtained on opening equipments. 
     Electric actuators used in nuclear power plant are usually Limitorque electric actuators  7  (in  FIG. 4 ) or Rotork electric actuators  8  (in  FIG. 5 ). Hence, test equipments for the electric actuators are mainly designed for the Limitorque electric actuators  7  or the Rotork electric actuators  8 . Current clamps or alligator clips are directly clipped to limit switches  71 ,  81  of the Limitorque electric actuators  7  or the Rotork electric actuators  8 , like hub terminal boards or limit/torque switches. General current clamps or alligator clips are thus not fit for controlling and testing auma MOV&#39;s actuators. Hence, the prior arts do not fulfill all users&#39; requests on actual use. 
     SUMMARY OF THE INVENTION 
     The main purpose of the present invention is to use a valve open/close unit, a torque switch unit and a diagnostic control unit on a panel to test and operate an auma MOV&#39;s actuator with jigs easily. 
     To achieve the above purpose, the present invention is an adaptive controller of auma MOV&#39;s actuator, comprising an auma MOV&#39;s actuator, a valve open/close unit, a torque switch unit, a diagnostic control unit and a breaker, where the auma MOV&#39;s actuator has a panel; the valve open/close unit, the torque switch unit, the diagnostic control unit and the breaker are electrically connect with the auma MOV&#39;s actuator and are set on the panel; the diagnostic control unit has a first terminal panel and a second terminal panel abidingly set; the first terminal panel and the second terminal panel have a plurality of corresponding ports separately; and the ports at least at a side are connected with cables. Accordingly, a novel adaptive controller of auma MOV&#39;s actuator is obtained. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawings, in which 
         FIG. 1  is the perspective view showing the preferred embodiment according to the present invention; 
         FIG. 2  is the view showing the panel; 
         FIG. 3  is the view showing the diagnostic equipment; 
         FIG. 4  is the view of the Limitorque electric actuator; and 
         FIG. 5  is the view of the Rotork electric actuator. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The following description of the preferred embodiment is provided to understand the features and the structures of the present invention. 
     Please refer to  FIG. 1  and  FIG. 2 , which are a perspective view showing a preferred embodiment according to the present invention; and a view showing a panel. As shown in the figures, the present invention is an adaptive controller of auma auma motor operated valve&#39;s (MOV&#39;s) actuator, comprising an auma MOV&#39;s actuator  1 , a valve open/close unit  2 , a torque switch unit  3 , a diagnostic control unit  4  and a breaker  5 . 
     The auma MOV&#39;s actuator  1  has a panel  11 . 
     The valve open/close unit  2  is electrically connected with the auma MOV&#39;s actuator  1  and is set on the panel  11 . The valve open/close unit  2  comprises a light opening unit  21 , a light closing unit  22  and an indicating part  23 , where the light opening unit  21  and the light closing unit  22  are of twist type, press type or turn type. 
     The torque switch unit  3  is electrically connected with the auma MOV&#39;s actuator  1  and is set on the panel  11 . The torque switch unit  3  comprises a torque opening switch  31  and a torque closing switch  32 , where the torque opening switch  31  and the torque closing switch  32  are of twist type, press type or turn type. 
     The diagnostic control unit  4  is electrically connected with the auma MOV&#39;s actuator  1  and is set on the panel  11 . The diagnostic control unit  4  has a first terminal panel  41  and a second terminal panel  42  abidingly set. Therein, the first terminal panel  41  has a plurality of corresponding ports  411 ; the first terminal panel  411  has ports  411  at a side connected with cables  412  separately; and the second terminal panel  42  has a first to a sixteenth ports  4201 ˜ 4216  connected with cables  4301 ˜ 4316  separately. 
     The breaker  5  is electrically connected with the auma MOV&#39;s actuator  1  and is set on the panel  11 . 
     Please further refer to  FIG. 3 , which is a view showing a diagnostic equipment. As shown in the figure, on using the present invention, the light opening unit  21  of the valve open/close unit  2  is used to switch on the auma MOV&#39;s actuator  1  and the indicating part  23  is lighted to show a ‘switch-on’ state. Then the torque opening switch  31  of the torque switch unit  3  is switched on to operate the auma MOV&#39;s actuator  1 . For stopping the auma MOV&#39;s actuator, the torque closing switch  32  of the torque switch unit  3  is used to eliminate torque of the auma MOV&#39;s actuator  1  at first. Then, the light closing unit  22  of the valve open/close unit  2  is used to switch off the auma MOV&#39;s actuator  1  and the indicating part  23  is lighted to show a ‘switch-off’ state. Thus, the valve open/close unit  2  and the torque switch unit  3  on the panel  11  are used to switch on and switch off the auma MOV&#39;s actuator. When the auma MOV&#39;s actuator  1  is overloaded with a transient current on operating, a breaker  5  is used to break the auma MOV&#39;s actuator  1  for preventing damages to the auma MOV&#39;s actuator  1 . 
     After the auma MOV&#39;s actuator  1  is operated for a while, the diagnostic control unit  4  on the panel  1  is used to diagnose the auma MOV&#39;s actuator  1 . On diagnosing the auma MOV&#39;s actuator  1 , jigs  61  of the diagnostic equipment  6 , like current clamps or alligator clips, are clipped to related cables  412 ,  4301 ˜ 4316  of the first and the second terminal panels  41 ,  42 . Related diagnostic methods and items include the followings: 
     1. Jigs  61  are clipped to cables  412  of the ports  411  of the first terminal panel  41  for a test of three phase alternative current (AC) power to the auma MOV&#39;s actuator  1 . 
     2. Jigs  61  are clipped to cables  4301 ,  4302  of the first and the second ports  4201 ,  4202  of the second terminal panel  42  for a test of torque at closing stroke to the auma MOV&#39;s actuator  1 . 
     3. Jigs  61  are clipped to cables  4303 ,  4304  of the third and the fourth ports  4203 ,  4204  of the second terminal panel  42  for a test of torque at opening stroke to the auma MOV&#39;s actuator  1 . 
     4. Jigs  61  are clipped to cables  4305 ,  4306  of the fifth and the sixth ports  4205 ,  4206  of the second terminal panel  42  for a test of limit at closing stroke to the auma MOV&#39;s actuator  1 . 
     5. Jigs  61  are clipped to cables  4307 ,  4308  of the seventh and the eighth ports  4207 ,  4208  of the second terminal panel  42  for a test of limit at opening stroke to the auma MOV&#39;s actuator  1 . 
     6. Jigs  61  are clipped to cables  4309 ,  4310  of the ninth and the tenth ports  4209 ,  4210  of the second terminal panel  42  for a test of partial stroke at closing stroke to the auma MOV&#39;s actuator  1 . 
     7. Jigs  61  are clipped to cables  4311 ,  4312  of the eleventh and the twelfth ports  4211 ,  4212  of the second terminal panel  42  for a test of partial stroke at opening stroke to the auma MOV&#39;s actuator  1 . 
     8. The thirteenth to the sixteenth ports  4213 ˜ 4216  of the second terminal panel  42  are coordinated with cables  4313 ˜ 4316  to be used as control cables to the auma MOV&#39;s actuator  1 . 
     To sum up, the present invention is an adaptive controller of auma MOV&#39;s actuator, where a valve open/close unit, a torque switch unit and a diagnostic control unit on a panel are used for tests and related operations; and the diagnostic control unit is coordinated with jigs for testing and operating the auma MOV&#39;s actuator easily. 
     The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.