Qinzhou Tianheng Petrochemical has obtained a patent for a normal-pressure sealed sampling device that ensures the samples collected are not easily contaminated by air

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Qinzhou Tianheng Petrochemical has obtained a patent for a constant-pressure sealed sampling device that ensures the samples collected are not easily contaminated by air. According to information from the Intellectual Property Office, Qinzhou Tianheng Petrochemical Co., Ltd. has been granted a patent titled “A Constant-Pressure Sealed Sampling Device”; the approval number is CN223217164U, and the application was filed in September 2024. The patent abstract indicates that this application proposes a normal-pressure sealed sampling device, which includes: a first sampling tube, a second sampling tube, a first shut-off valve, a second shut-off valve, and a transfer tube. A third sampling tube is located in the middle of the transfer tube; one end of the third sampling tube is connected to the transfer tube, while its other end is connected to the upper part of the first sampling tube via the first shut-off valve. The second shut-off valve is connected to the lower part of the first sampling tube ； The rubber plug is inserted at the end of the second sampling tube, and the end cap is installed on the end of the second sampling tube via threads; the end cap is equipped with multiple sampling holes. This application seals the end of the second sampling tube with a rubber block, which prevents air from entering the sampling tube and syringe during sampling. This ensures the proper operation of the equipment and protects the sample from contamination. The end cap is equipped with multiple sampling holes, allowing the sampler to pierce the rubber block in different areas, thereby avoiding repeated punctures in the same area and extending the lifespan of the rubber block. This helps to ensure that the sampled material is not contaminated by air. According to Tianyancha, Qinzhou Tianheng Petrochemical Co., Ltd. was established in 2012 and is located in Qinzhou City; it is a company that focuses on the manufacturing of chemical raw materials and chemical products. The registered capital of the enterprise is 80 million RMB. According to the big data analysis provided by Tianyancha, Qinzhou Tianheng Petrochemical Co., Ltd. has made investments in 3 companies in total and participated in 30 bidding projects. In terms of property-related information, there are 2 trademark records and 11 patent records; furthermore, the company holds 106 administrative licenses.