Alternate inlet field testing apparatus

摘要

Embodiments of the invention provide a containment system having a primary air inlet and an alternate inlet. In one embodiment, a containment system includes a housing configured to retain a main filter, the housing having a primary air inlet and an access door configured to access an interior of the housing. The access door has an alternate airflow inlet. In another embodiment, an air distribution plate includes a front surface having a first edge and an opposing second edge, wherein the front surface is configured to allow air to pass therethrough. Flow resistance through the front surface is greater proximate the second edge relative the first edge. In yet another embodiment, a method for testing a filter includes closing a damper and flowing air into a containment housing through an inlet formed though an access door and across an air distribution plate to a filter, and testing the filter.

主权项

1. A containment system comprising:
a housing configured to hold a filter in a position that separates an upstream section from a downstream section, the housing having a first airflow inlet communicating with the upstream section and an airflow outlet communicating with the downstream section, the housing having an access port formed in the housing communicating with the upstream section; an access door configured to close the access port, the access door operable to place the access port in an open state and a closed state; and a sealable second airflow inlet formed through the access door, the sealable second airflow inlet configurable between a sealed state and an open state, wherein the access port is sealed when the access door is in the closed state and the sealable second airflow inlet is in the sealed state, and wherein the downstream section is in fluid communication with the second airflow inlet when the access door is in the closed state and the second airflow inlet is in the open state.