The hottest Lanzhou high pressure valve has fully

Lanzhou high pressure valve has fully completed the production task of new knife gate valves

on November 1, 2014, the last batch of 263 new knife gate valves produced by Lanzhou high pressure valve Co., Ltd. for Sinopec passed the test and were packed and shipped. Knife gate valves are generally used for the opening and closing of pipelines of flue gas desulfurization and denitration devices, papermaking, coal slurry, sewage and other media in petrochemical plants. They are small in size and light in weight

on November 1, 2014, the last batch of 263 new knife gate valves produced by Lanzhou high pressure valve Co., Ltd. for Sinopec passed the test and were packed and shipped. Knife gate valves are generally used for the opening and closing of pipelines of petrochemical devices, flue gas desulfurization and denitration devices, papermaking, coal slurry, sewage and other media. They are small in size, light in weight, and suitable for slurry media. They are one of the equipment required to be used in refining and chemical projects in order to control haze weather in China. Previously, domestic technology was immature, and all knife gate valves used in refining and chemical projects rely on imports

at the beginning of July, the company successively received the production tasks of 9 sets of knife gate valves from Sinopec Jingmen Branch, Jinling Branch, Hainan Branch, Maoming Branch, Guangzhou Branch, Jinan Branch, Baling Branch, Wuhan No.1 unit and Wuhan No.2 unit, and the delivery period is only 60 days

the knife gate valve used in Sinopec refining and chemical plant this time has the nominal pressure of cl150 and PN16, the nominal size of DN, and the materials of CF3 and 4a. 3. The ultra long time timer is a new product. Whether it can be delivered with quality on schedule is directly related to the construction progress of Sinopec refining and chemical plant project, which is a severe test for Lango valve. Chen Qingliu, the chairman of the company, stressed at the production mobilization meeting: "the new knife gate valve is one of the equipment required to be used in the refining and chemical project devices in order to control the haze weather in China. It is a kind of commitment of Langao valve to the people of the country to complete the delivery on time with good quality"

the tense production task began after the mobilization meeting. The Technology Department of the company worked overtime to overcome difficulties and distributed the design drawings to relevant departments as soon as possible; The procurement department purchases the required accessories according to the drawings; The production department immediately held a production meeting, mobilized all the processing equipment and operators of the company, and formulated a detailed production plan according to the delivery date. Other functional departments of the company also fully cooperated with the production department

the machining workshop took the lead in arranging all kinds of machine tools such as ordinary cars, sleeping cars and vertical cars to start working at high speed to process the main and auxiliary body planes of knife gate valves. The next day, the machining center began to mill the U-shaped groove of the first main body, the bottom packing groove, the horizontal bar sealing groove and the guide hole. On the third day, when the drilling is completed, most of the inverted springs bear alternating loads, and the cycle times of the required life are as few as thousands of times (such as padlock spring and button switch spring), or as many as millions of times (such as valve spring of automobile engine, etc.), the fitter has matched all the accessories, and the ram is to be installed after several days of grinding. On the fourth day, the first pz73x-16p-dn100 knife gate valve was successfully assembled

however, because the new knife gate valve is a new product and the technology is not mature, the product process is cumbersome, and many accessories cannot achieve the theoretical effect after assembly, especially the U-shaped sealing strip, which plays a key role, cannot be sealed after multiple pressure tests. For this reason, Le Jingjing, the chief engineer of the company, and Zhang Lin, the deputy chief engineer, have convened key personnel for "consultation" for many times, and finally decided to improve the processing measures and material performance technical scheme, replacing the filler from the original rubber material with tetrafluoroethylene material that is not easily affected by the number of ram switches, so that the sealing problem can be solved

at the end of August, the delivery date of some projects is approaching. However, because the new knife gate valve must be programmed and processed by the machining center, the production progress is very slow, and all employees are immersed in a dignified atmosphere. In order to stimulate morale and improve the enthusiasm of the staff, Wang Lijun, the assistant chairman of the company, and Wen Guohui, the executive deputy general manager, presided over the front-line staff meeting. The test method of PBT special materials for energy-saving lamps encouraged everyone to show their skills and tap their potential. At the same time, all departments were required to work together to fully meet production needs, ensure quality and quantity, and complete production tasks on schedule

in the golden autumn of October, the whole workshop of the company was running at full capacity, all night long, and the lights were bright. The employees watched batches of products being loaded and shipped smoothly, and they had an unspeakable sense of honor in their hearts. On October 29, everyone breathed a long sigh of relief when they saw that the last new knife gate valve passed the test

the successful development and production of the new knife gate valve is the result of the joint efforts of all employees of Langao valve, and once again demonstrates the strong technological innovation ability of Langao valve, which will be recorded in the history of China's environmental protection and leave a heavy mark

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