Full air-exchanging safety cabinet

Abstract

A full air-exchanging safety cabinet is provided, comprising a cabinet body having an accommodating space, an air inlet, an air vent and an experiment operation entrance, an air-feeding blower provided at the air inlet side of the cabinet body, a first air filter for filtering air introduced by the air-feeding blower, an experiment operation zone located under the cabinet body and provided with a working platform, a plurality of slits disposed at opposite sides of the experiment operation zone, a glass plate provided at an outer side of the experiment operation entrance of the cabinet body, a second air filter provided at an upper portion of the cabinet body, a speed and pressure monitoring device located at the air vent side of the cabinet body and connected to the second air filter, and an exhaust system connected to the speed and pressure monitoring device.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic perspective view of a full air-exchanging safety cabinet of the present invention.

FIG. 2 is a schematic front view of the full air-exchanging safety cabinet of the present invention.

FIG. 3 is a schematic appearance of the full air-exchanging safety cabinet of the present invention.

FIG. 4 is a schematic perspective view of a speed and pressure monitoring device, a wind pipe and a flap of the present full air-exchanging safety cabinet.

FIG. 5 is a schematic block diagram of a control system of the present invention.

FIG. 6 is a schematic exploded view of a full air-exchanging safety cabinet of another embodiment of the present invention.

FIG. 7 is a schematic assembled view of the full air-exchanging safety cabinet of FIG. 6.

Claims

1. A full air-exchanging safety cabinet comprising: a cabinet body having an accommodating space, an air inlet, an air vent and an experiment operation entrance;an air-feeding blower disposed at the air inlet side of said cabinet body;a first air filter for filtering air introduced by said air-feeding blower;an experiment operation zone located under said cabinet body and provided with a platform, wherein a plurality of inlet slits and air-sucking slits is respectively provided at opposite sides of said experiment operation zone;a glass plate disposed at an outer side of said experiment operation entrance;a second air filter disposed at an upper portion of said cabinet body;a speed and pressure monitoring device located at the air vent side of said cabinet body and connected to said second air filter; andan exhaust system connected to said speed and pressure monitoring device;wherein when exhausting flow of said exhaust system is larger than air-feeding flow of said air-feeding blower by which air is introduced to the inside of said cabinet body, the air flow passes through said first air filter for filtering and screened by an air flow screen, the air flow is evenly blown to said experiment operation zone, and the air flow in said experiment operation zone is sucked via said air-sucking slits, and then the air flow passes through said second air filter and said speed and pressure monitoring device and is exhausted by said exhaust system.

2. The full air-exchanging safety cabinet of claim 1, wherein said speed and pressure monitoring device further comprises a speed measuring unit and a pressure measuring unit.

3. The full air-exchanging safety cabinet of claim 1, wherein said exhaust system comprises a wind pipe and a flap pivotably disposed in said wind pipe.

4. The full air-exchanging safety cabinet of claim 3, wherein said exhaust system further comprises an exhaust blower connected with said wind pipe.

5. The full air-exchanging safety cabinet of claim 1, wherein a balustrade plate is disposed at an outer side of said inlet slits.

6. The full air-exchanging safety cabinet of claim 1 further comprising a fairing.

7. The full air-exchanging safety cabinet of claim 1, wherein said air inlet is further provided with a filter screen.

8. The full air-exchanging safety cabinet of claim 1, wherein further comprises an airflow screen disposed under said first air filter, and said air-sucking slits is disposed on an air-sucking plate, and at least one inner wall of said experiment operation zone is coated with photocatalytic material, wherein at least one inner wall in said experiment operation zone comprises a rear inner wall, two inner sidewalls of said experiment zone, a bottom surface of said airflow screen and an air-feeding plate inside said experiment zone.

9. The full air-exchanging safety cabinet of claim 1 further comprising a first zone for introducing air flow from the outside by said air-feeding blower such that the air flow is evenly blown to said first air filter, a second zone for exhausting air to the outside, and a filter screen disposed under said second air filter, and at least one inner wall of said second zone coated with photocatalytic material, and at least one inner wall inside said second zone comprises a rear inner wall, two inner sidewalls of said second zone, a bottom surface of said airflow screen and said air-feeding plate inside said second zone.

10. The full air-exchanging safety cabinet of claim 1, wherein a UV lamp is disposed under said second air filter.

11. The full air-exchanging safety cabinet of claim 9, wherein a UV lamp is disposed under said second air filter.