diff --git a/webapp/classes/AddReward.php b/webapp/classes/AddReward.php
index 1771753..39b0a0a 100644
--- a/webapp/classes/AddReward.php
+++ b/webapp/classes/AddReward.php
@@ -87,6 +87,23 @@ class AddReward {
             if (!$ret) {
                 die();
             }
+        } else if ($item_id > 16000 && $item_id < 17000) {
+            $rowTank = $conn->execQueryOne('SELECT fragment_num FROM tank WHERE accountid=:accountid AND fragment_id=:fragment_id;',
+                                           array(
+                                               ':accountid' => $account_id,
+                                               ':fragment_id' => $item_id
+                                           ));
+            $ret = $conn->execScript('UPDATE tank SET fragment_num=:fragment_num, modify_time=:modify_time ' .
+                                     ' WHERE accountid=:accountid AND fragment_id=:fragment_id;',
+                                     array(
+                                         ':accountid' => $account_id,
+                                         ':fragment_id' => $item_id,
+                                         ':fragment_num' => $item_num + $rowTank['fragment_num'],
+                                         ':modify_time' => time()
+                                     ));
+            if (!$ret) {
+                die();
+            }
         }
     }