http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114115143-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cdddc255bdf5d6b6685178c5d1d0766f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G05B2219-33273 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C241-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G05B19-41865 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C243-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C243-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G05B19-418 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-02 |
| filingDate | 2021-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11abe7bc043cd14379be715f9960466f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93abc456c75f2c67151eb6f2f8184e8e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1070815dcaf39fd202699c88577559fa |
| publicationDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114115143-A |
| titleOfInvention | Method for automatically controlling methyl hydrazine production process through DCS |
| abstract | The invention provides a method for automatically controlling a methyl hydrazine production process through DCS, which comprises the steps of presetting operation parameters through a DCS system, controlling the opening of a steam regulating valve to enable the temperature of a kettle to rise stably, closing the steam regulating valve when the pressure in the kettle reaches a pressure set value for closing steam, then releasing heat through reaction until the temperature in the kettle reaches a heat preservation temperature set value, or entering a pressure control and heat preservation stage when the pressure in the kettle reaches a heat preservation pressure set value; according to fluctuation of a difference value between an actual pressure value and a heat preservation pressure set value in the kettle, the pressure in the kettle is kept stable through point water operation, after the timing of the heat preservation time reaches a heat preservation time length set value, the circulating water inlet and outlet valve is fully opened, and when the temperature and pressure in the kettle are reduced and the temperature reduction pressure reaches the temperature reduction pressure set value, the circulating water inlet and outlet valve is closed. According to the invention, the automatic production process of the methylhydrazine is realized through the DCS system, the reaction process is accurate and controllable, the product quality is effectively improved, the labor cost is saved, the hidden danger caused by manual misoperation is avoided, and the safety of workers is ensured. |
| priorityDate | 2021-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.