一种内循环净气型排风柜
Through the unique airflow guiding structure and intelligent monitoring system of the internal circulation air purification fume hood, the problems of insufficient purification efficiency and energy waste of existing fume hoods have been solved, achieving efficient and safe waste gas treatment and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGFENG GUOLING ENVIRONMENTAL PROTECTION EQUIP MFG CHENGDU CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fume hoods suffer from insufficient purification efficiency, unreasonable airflow organization, high maintenance costs, and inability to adapt to the wind speed and air volume requirements of different experimental scenarios. In particular, they cause serious energy waste and pose safety hazards in high-rise laboratories.
It adopts a unique bottom return air guiding structure, modular disassembly structure and intelligent monitoring system, combined with multiple exhaust modes and internal circulation purification system to achieve effective airflow organization and efficient interception of waste gas, reduce energy consumption and provide adaptive air volume control.
It achieves zero airflow residue and zero condensation droplets, reduces energy consumption, avoids airflow turbulence and exhaust gas leakage, provides intelligent monitoring and multi-mode switching, and reduces maintenance costs.
Smart Images
Figure CN224507979U_ABST
Abstract
Claims
1. An inner circulation clean air type fume hood, comprising a cabinet body (1), a cabinet door (2) is arranged on the cabinet body (1), a drawer (3) is arranged on the cabinet body (1), characterized in that, The top of the cabinet (1) is equipped with a fan (14), which is used for exhausting and circulating air inside the cabinet (1); it also includes: The front side of the cabinet (1) is rotatably connected to the cabinet door (2), and a sliding groove is provided on the front side of the cabinet (1). The drawer (3) is slidably connected in the sliding groove. A power distribution control box (4) is provided on the front side of the cabinet (1), and a mode control box (5) is provided on the front side of the cabinet (1). A circulation component is provided in the cabinet (1); External exhaust components are installed in the cabinet (1).
2. The inner loop clean air exhaust cabinet according to claim 1, wherein: The external exhaust assembly includes a No. 1 air duct (6) connected to the right side of the cabinet (1), and a No. 2 air duct (7) connected to the left side of the cabinet (1). One end of the No. 1 air duct (6) and the No. 2 air duct (7) are connected to the fan (14).
3. The internal-circulation clean-air type exhaust cabinet according to claim 2, characterized in that: The fan (14) is connected to an exhaust duct (8) on the left side. An exhaust filter (12) is fixedly connected to one end of the exhaust duct (8). A room monitoring sensor (13) is provided on the front side of the exhaust filter (12). A first air valve (10) is provided on the front side of the exhaust duct (8).
4. The internal-circulation clean-air type exhaust cabinet according to claim 3, characterized in that: The circulation component includes a circulation duct (9) connected to the front side of the fan (14), and a second air valve (11) is provided on the front side of the circulation duct (9), one end of the second air valve (11) being connected to the circulation outlet (16).
5. The internal-circulation clean-air type exhaust cabinet according to claim 4, characterized in that: The circulating air outlet (16) is equipped with a second monitoring sensor (17), and the inner wall of the circulating air outlet (16) is equipped with a circulating air filter (18), and the inner wall of the cabinet (1) is equipped with a first waste gas adsorption layer (19).
6. The internal-circulation clean-air type exhaust cabinet according to claim 5, characterized in that: The inner wall of the cabinet (1) is provided with a second waste gas adsorption layer (21), and a monitoring sensor (20) is provided between the first waste gas adsorption layer (19) and the second waste gas adsorption layer (21).
7. The internal-circulation clean-air type exhaust cabinet according to claim 6, characterized in that: The first waste gas adsorption layer (19) and the second waste gas adsorption layer (21) are both located inside the cabinet door (2), and the front side of the cabinet (1) is provided with two sliding doors (22).
8. The internal-circulation clean-air type exhaust cabinet according to claim 7, characterized in that: The cabinet (1) is provided with a lifting door (23) on the front side, and an operation window (24) is provided on both sliding doors (22). A guide plate (15) is fixedly connected to the inner wall of the rear side of the cabinet (1), and the bottom of the guide plate (15) is connected to the top of the first waste gas adsorption layer (19).