http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109939508-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D50-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D46-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D46-52 |
| filingDate | 2019-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109939508-B |
| titleOfInvention | Three-proofing filtering equipment |
| abstract | The invention relates to the technical field of environmental gas safety protection, and provides a three-proofing filtering device. The equipment comprises a reversing device and a filtering absorber, wherein the reversing device comprises a valve shell and a rotary switch valve arranged in the valve shell, and the rotary switch valve is used for enabling airflow flowing from an air inlet interface to an air outlet interface in the valve shell to selectively pass through the filtering absorber; the inner wall of rotary switch valve and valve casing encloses to establish and is formed with the cavity, the cavity is formed in rotary switch valve's inside, rotatory when making the filter absorber switch-on at rotary switch valve, make cavity and external intercommunication through seting up the first bleeder vent on the valve casing, thereby make the atmospheric pressure in the cavity be less than the atmospheric pressure of rotary switch valve both sides, even if, take place to leak between rotary switch valve and the valve casing, the gas of leaking also can unidirectional flow in the cavity and arrange to the external world by first bleeder vent, toxic/harmful gas has finally been avoided leaking one side of air current after filtering and has caused the injury to the personnel in the internal environment. |
| priorityDate | 2019-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.