Abstract: The present disclosure discloses methods and devices for ordering package products. The method includes: receiving an order information processing request and generating corresponding order data; if the order information comprises package ordering information, generating, for the package ordering information, purchase data sheets associated with the order data, generating purchase group data sheets associated with the purchase data sheets based on packages as granularities, and generating purchase product details data sheets associated with the purchase group data sheets based on products as granularities; storing the order data, the purchase data sheets, the purchase group data sheets, and the purchase product details data sheets to complete ordering of package products.

Abstract: The present disclosure provides methods and apparatuses for creating a times card voucher and methods and apparatuses for writing off a times card voucher. The method includes: receiving an acquisition request for a times card; creating a primary voucher and at least one secondary voucher corresponding to the times card based on the acquisition request, wherein a number of the at least one secondary voucher is consistent with a number of times of use authorized for the times card; generating at least one of a first write-off code corresponding to the primary voucher, or a second write-off code corresponding to the at least one secondary voucher, so as to write off the at least one secondary voucher.

Abstract: The present invention relates to decoking of a residual oil delayed coke reactor. When decoking, the roller of the flexible pipe winch is rotated to cause the flexible pipe to vertically ascend or descend in the coker wherein the high pressure water rotates the turbine blades of the turbine-reductor which brings the drilling and cutting combination unit into rotation so as to drill a through hole in the coke accumulation and then conduct the decoking operation. The drilling and cutting combination unit is equipped with a pressure control unit so that switchover of the drilling and cutting operations can be automatically performed. The present invention eliminates the use of a derrick, resulting in significant savings in time, quantity of steel, capital investment, and equipment required to facilitate the decoking process and enhance decoking efficiency.

Abstract: The present invention relates to decoking of a residual oil delayed coke reactor. When decoking, the roller of the flexible pipe winch is rotated to cause the flexible pipe to vertically ascend or descend in the coker wherein the high pressure water rotates the turbine blades of the turbine-reductor which brings the drilling and cutting combination unit into rotation so as to drill a through hole in the coke accumulation and then conduct the decoking operation. The drilling and cutting combination unit is equipped with a pressure control unit so that switchover of the drilling and cutting operations can be automatically performed. The present invention eliminates the use of a derrick, resulting in significant savings in time, quantity of steel, capital investment, and equipment required to facilitate the decoking process and enhance decoking efficiency.