Securities code: 002671 securities abbreviation: Shandong Longquan Pipeline Engineering Co.Ltd(002671) Announcement No.: 2022-004
Shandong Longquan Pipeline Engineering Co.Ltd(002671)
Announcement on the acquisition of patent certificates by wholly-owned subsidiaries
The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.
Wuxi Xinfeng Pipe Industry Co., Ltd., a wholly-owned subsidiary of Shandong Longquan Pipeline Engineering Co.Ltd(002671) (hereinafter referred to as “the company”), recently obtained the patent certificate issued by the State Intellectual Property Office. The details are as follows:
Serial patent No. patent name patent application date validity Certificate No
Number type
Invention of residue boiling bed
1zl201811438418.5 forming process of hydrocracking alloy pipe patent No. 4684711 in November 2820, 2018
A kind of three practical super long branch pipe
Hot pressing of 2zl202121254752.2-way pipe fittings into a new shape mold patent No. 15017614, 2021.6.410
A practical cold for elbow pipe fittings
3zl202121255940.7 new type push forming hydraulic press patent No. 15009827, June 410, 2021
A practical slurry bed reactor
4ZL202121251436. New high pressure pipe fitting patent No. 15084965, June 410, 2021 in the application of X filter
A practical method for thick wall of straight pipe section
5ZL202121255416. New hot pressing molding die patent No. 15074260, June 410, 2021 for X elbow fittings
A practical method based on isothermal casting
6zl202022511768.9 new titanium alloy pipe fitting forming die patent No. 15308108, November 310, 2020
A practical method for flaw detection of pipe fittings
7zl202121407940.4 multifunctional probe new type patent for head adjustment seat No. 15309578 in 2021.6.2310
A practical method for testing thin-walled tubes
8zl202121408867.2 new concentricity adjustment device patent No. 15325925 in 2021.6.2310 for rotating head
A practical method of multi-dimensional water immersion
9zl202121409518.2 new type stainless steel pipe flaw detection device patent No. 15325926 in 2021.6.2310
The patentees of the above patents are Wuxi Xinfeng Pipe Industry Co., Ltd.
“A forming process for residual oil fluidized bed hydrocracking alloy pipe fittings”, the residual oil fluidized bed hydrocracking alloy pipe fittings produced by the forming process of the invention have strong corrosion resistance, significantly improve the grain size and surface quality of the pipe fittings, effectively meet the use requirements of residual oil fluidized bed hydrocracking process, and the cost is lower than that imported from abroad, The procurement cycle of Chinese manufacturers is also greatly shortened, the procurement cost is significantly reduced, and the practicability is good;
“A hot pressing forming die for Super Long Branch tee pipe fittings” drives the driving bevel gear to rotate through the rotating rod. Because the driving bevel gear is meshed with the driven bevel gear, the driven bevel gear will drive the one-way lead screw to rotate. At this time, the sliding seat drives the top block to move up, and the top block moved up is used to eject the product from the lower die, which is not only simple to operate, It makes the product take out more convenient and fast, and greatly reduces the possibility of product or mold damage;
“A cold push forming hydraulic machine for elbow pipe fittings”, by stretching the output end of the expansion rod, the second support plate moves away from the first support plate until the outer plates on both sides are close to the inner wall of the elbow pipe fittings, the rotating block rotates to rotate the elbow pipe fittings to the other side of the top plate, so that the output end of the expansion rod shrinks, and the second support plate is close to the first support plate. Due to the action of gravity, The elbow pipe fittings fall into the collection box, and the blanking of the device is taken out mechanically instead of manually, which saves time and labor and improves work efficiency;
“A high-pressure pipe fitting in the application of slurry bed reactor”, through the horizontal stiffening ring, after the pipe fitting body is manufactured, the horizontal stiffening ring and vertical stiffening rod are sleeved on the outer wall of the pipe fitting body, and the horizontal stiffening ring and vertical stiffening rod are welded with the pipe fitting body, so as to strengthen the strength of the pipe fitting body and prevent the deformation of the pipe fitting body when the slurry bed reactor is used, At the same time, a plurality of groups of support rods are arranged inside, which can support the interior of the pipe fitting body to prevent the high pressure in the slurry bed reactor from squeezing the pipe fitting body;
“A hot pressing forming die for thick wall elbow pipe fittings of straight pipe section”, by adding a moving rod and a chassis, and cooperating with the second rotating rod to cooperate with the first chute and the second chute, the distance between the first elbow roll and the second elbow roll can be adjusted quickly, so that the application scope of the utility model is wider. By adding a fixing block and a limiting block, At the same time, it is matched with the limit rod and limit hole to make the moving rod easy to locate and more stable during operation. By adding pull rings and anti-skid convex lines, the moving rod is easy to move; “A forming die for titanium alloy pipe fittings based on isothermal casting technology”, the utility model has novel structure and ingenious conception. The bottom die and the upper die are heated through the installed heating plate until they are heated to the blank deformation temperature to prevent the die from adhering to the titanium alloy material. At the same time, the titanium alloy material is fed evenly, which is conducive to use;
“A multifunctional probe adjusting seat for pipe fitting flaw detection”, through a new structure, a first shaft sleeve and a second shaft sleeve are added to match, and a rotating rod and a sliding rod are added to match, so that the utility model can quickly adjust the horizontal position. At the same time, the position of the flaw detection head can be quickly adjusted with the rocker, so that the adjustment is more convenient and fast. By adding a return spring, By adding a handle and a second anti-skid convex pattern, the second shaft sleeve is easy to operate and not easy to slip in use; “A concentricity adjustment device of rotating head for thin-wall pipe detection”, through the base and the universal wheel on the base, the moving position of the whole device can be fixed at the same time, and the claw teeth are driven by the worm, so that the force of the boss on the surface continues and the reading of the dial indicator is accurate;
“A multi-dimensional water immersion stainless steel pipe flaw detection device”, the utility model can control the multi-dimensional rotation of the detection head, detect various angles inside the pipe according to the needs, improve the detection accuracy, clamp the pipe, facilitate the adjustment according to the pipes with different diameters, and expand the scope of application.
The acquisition of the above patent certificates will not have a significant impact on the production and operation of the company and its subsidiaries, but it is conducive to give full play to the advantages of the company’s independent intellectual property rights, promote technological innovation and enhance the company’s competitiveness to a certain extent.
It is hereby announced.
Shandong Longquan Pipeline Engineering Co.Ltd(002671)
Board of directors
January 6, 2022
