Other

Qingdao Haier Washing Machine Co., Ltd.

Qingdao University of Technology

China University of Petroleum

Qingdao Wohler Household Products Co., Ltd.

No.1 Exploration Brigade of Shandong Coal Geology Bureau

Bin Zhang

Zuquan Jin

Xianmin Zhang

Kun Yang

Chao Yang

Qihong Feng

Pengfei Guo

Yuan Guo

Jinzhen Cai

Ning Fan

Yiping Bian

Qingguo Xu

Jianhong Wang

Gongfa Ma

Chuanshen Xu

Lin Hou

Yandong Sun

Changlong Zhang

Baiyanyue Chen

Miaomiao Dong

Zhuangzhuang Zheng

Fanxiu Chen

Feng Wang

The present invention discloses a device and method for testing the gas loss amount which simulates a wireline coring process, and belongs to the field of petroleum engineering. The device includes: a programmable temperature control thermostat for simulating temperature changes in a wireline coring process, a simulated center pipe body for constructing a simulated environment of the center pipe body being filled with drilling fluid or clean water, a simulated coring barrel for drilling for and retaining a core sample, a gas injection control and recovery device, a liquid injection control and recovery device, and a drainage and gas collection meter. The present invention has advantages as follows: it is simple to implement and can reproduce a real drilling and coring process to a certain extent; the simulation of the coordinated changes in liquid pressure and temperature environment experienced by the core sample lifted to a wellhead from a drilling bottom hole through the programmable temperature control thermostat and a program-controlled constant pressure valve, can truly reproduce the environmental conditions of a wireline coring barrel being filled with drilling fluid and the loss changes in gas content of the core sample with the coordinated descents in liquid-phase pressure and temperature in the liquid-phase filling environment in the core lift process.

Device and method for testing gas loss amount which simulates wireline coring process

The invention discloses a surgical conduit anastomosis suture tensioning device, which comprises a tube A and a tube B, wherein the tube A is a preset tube, and the tube B is a suture hooking tube; the preset tube comprises a connector, a first crossbar and a first tail, the first crossbar is arranged between the connector and the first tail, the connector is vertical to the first crossbar and magnetic, and a plurality of grooves are evenly distributed on the surface of the first crossbar; the suture hooking tube comprises a suture hooking head, a second crossbar and a second tail, the second crossbar is arranged between the suture hooking head and the second tail, the suture hooking head is vertical to the second crossbar and magnetic, a suture hooking slot is arranged at the tip of the suture hooking head in a forky form, the surface of the second crossbar is smooth and free from grooves, and the second tail has the same structure as the first tail. The invention relates to the technical field of surgical suture tensioning device, in particular provides a surgical conduit anastomosis suture tensioning device, which can effectively improve the continuous conduit suture efficiency and precision, promote uniform anastomotic healing, and reduce anastomotic stenosis caused by scars.

Surgical conduit anastomosis suture tensioning device

A method for measuring corrosion-expansion force during cracking of concrete due to corrosion and expansion of reinforcing steel; wherein, deformation on a surface of reinforced concrete is photographed based on a digital image correlation (DIC) method, a full-field displacement and a full-field strain on a surface of the concrete are analyzed and calculated, a relationship between corrosion-expansion force and the strain on the surface of the concrete is found through an established theoretical model, and corrosion-expansion force of reinforcing steel and a change rule of the corrosion-expansion force are calculated. Therefore, the method is simple and includes with safe and reliable operations, scientific principles, and low costs, so that a change in corrosion-expansion force during corrosion and expansion of reinforced concrete can be monitored in real time.

Method for measuring corrosion-expansion force during cracking of concrete due to corrosion and expansion of reinforcing steel

Double compartment smooth-wall foil container

A coin-operated washing/drying machine including a cabinet and a coin box assembly disposed within the cabinet. A supporting structure is fixedly disposed within the cabinet. At least a bottom surface of the coin box assembly is fixedly connected with the supporting structure by a fastener. The fastener passes through from the interior of the coin box assembly and is fixedly connected with the supporting structure. The supporting structure is disposed within the cabinet; the bottom surface of the coin box assembly is fixedly connected with the supporting structure; the fasteners such as screws are thus invisible from an overall appearance. Since the coin box assembly is fixed to the supporting structure by the bottom surface to cause such a fixing structure to be hidden in the bottom surface of the coin box assembly, thereby achieving a good anti-theft effect.

Coin-operated washer/dryer

Growing community of inventors

Qingdao, China

Bin Zhang