Monitoring of air flow control valves and ventilation systems
DATE:2024-09-20
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Normally closed smoke vent is mainly composed of valve body, blade, drive mechanism, actuator and other parts, installed in the corridor and the entrance and exit channels. Normally closed smoke vent is normally closed, and can be opened by electric control when needed. The electric control valve of the air outlet is mainly composed of valve body, blade, transmission mechanism, actuator and other parts installed in the air outlet of the room with the requirement of adjusting the air volume, and electrically adjust the air volume of the air outlet.
1, electric air volume control valve electric air volume control valve is mainly composed of valve body, blade, transmission mechanism, actuator and other parts. Adopting 220Vac driven electric air flow control valve local control box, power distribution by the power professional responsible for. The cross-sectional area of external control cable is 1.5mm2, and the valve actuator provides external terminals. The working status of the damper is completed by the local control box.2. Fire damperFire damper is mainly composed of several parts such as valve body, blade, transmission mechanism, actuator and temperature sensor, etc. The non-electrically controlled fire damper is the same as FASV. Non-electrically controlled fire damper and FAS system have monitoring interface requirements, and the fire damper actuator with interlocking protection function with the fan needs to provide two independent dry nodes, and at the same time to meet the signal feedback status display. Rated voltage: DC24±2.4V electronically controlled fire damper, smoke valve and normally closed smoke vent and FAS system has control interface requirements, the valve actuator provides terminals to meet the automatic control function of the FAS system, and at the same time, the terminal settings to meet the more than one valve in series controlled by a circuit. 3, the air vent motorized valve air vent motorized valve is mainly composed of the valve body, blades, actuators and other parts, Actuator and other parts, characterized as follows: air outlet electric adjustment valve: 220V drive, power distribution by the power professional responsible for. Air vent electric normally closed valve: DC24±2.4V, with FAS system control interface requirements. Dampers interface: electric air flow control valve equipment is also used for fire conditions. In case of fire, FAS sends fire mode command to BAS, and BAS executes fire linkage control to TFJ. Interface between gas extinguishing system (QM) and HVAC specialized motorized control valve (TFJ): control and monitoring of gas extinguishing system (QM) and motorized control valve. In case of fire, QM sends a fire alarm signal to FAS, and QM performs fire linkage control of TFJ. Interface between fire alarm system (FAS) and HVAC professional electric smoke vent equipment (SEG): FAS control of SEG interface and SEG status return signal.
Actuator control principle: hand/automatic control: electronically controlled smoke and fire damper, electronically controlled smoke and fire damper, electric smoke and fire damper, electric smoke and fire damper, normally closed smoke vent, actuator hand/automatic control switch to the automatic gear when the fire damper is controlled by the FAS system, which can not be manually controlled at this time; hand/automatic control switch to the manual gear fire damper can be manually operated, which is when the control of the FAS system was Manual reset: the electric smoke and fire damper is controlled by FAS system. Manual reset: electric smoke and fire damper, electric smoke and fire damper, normally closed smoke vent Manual reset clockwise; electric smoke and fire damper, electric smoke and fire damper, smoke and fire damper, smoke and fire damper counterclockwise manual reset.
Installation of air flow control valve: air flow control valve installation, according to the national building standard design atlas 07K120 “air valve selection and installation”, explained as follows: 1. shipped to the construction site of the air valve products, the installation unit should be reported to the superintendent for acceptance, according to the packing list of the box to check the certificate of conformity, test reports and installation instructions, etc., one by one to check the product model, specifications, materials, marking and control mode is Conform to the provisions of the design documents, and should make a good record and the signatures of all parties to confirm. 2. dampers in place before installation should be tested one by one to see if the structure is firm, tight, switching operation test, to check whether it is flexible and reliable; on the electric damper should be electrified one by one and test, make a good record of the test. 3. dampers in place before the installation of the valve must be checked before the scope of its application, the installation location, the direction of the airflow and the operation of the surface is correct. 4. The opening and closing direction and opening angle of the damper should be accurately marked on the visible surface.5. For the damper installed at a high place, the manual manipulation device should be 1.5-1.8m away from the exposed surface or the operation platform.6. The operating surface of the damper should be not less than 200mm away from the wall, roof and other equipment, pipeline, and the damper should not be installed in the structural layer or holes. The width of the seam around the valve should be more than 150mm. 7. Check whether the flange size reserved for connecting ducts, the diameter and distance of the holes drilled, the flatness and parallelism of the flange surface, the material and thickness of the gasket, and the connection of non-metallic ducts are in accordance with the requirements. 8. Check whether the location and practice of the support and hanger are in accordance with the specifications or the design documents. 9. Single piece of air valve weight greater than 50kg should be set up a separate support, hangers; electric air valve is generally appropriate to set up a separate support, hangers; used for soft non-metallic duct system air valve is generally appropriate to set up a separate support, hangers. 9. for clean ventilation system air valve must be cleaned according to the requirements of the valve before installation of the internal surface, to achieve the appropriate clean standards closed ends, encapsulated plate in place before removal. Scrub clean air-conditioning system damper inner surface should be used not to lose fiber materials, scrub clean damper shall not be stored in the room without good walls, floors, doors and windows, temporary storage places must be kept clean.10. Conveying medium temperature exceeds 80 ℃ damper, in addition to the design requirements of heat insulation, should also be carefully checked expansion and contraction compensatory measures and protective measures.
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1, electric air volume control valve electric air volume control valve is mainly composed of valve body, blade, transmission mechanism, actuator and other parts. Adopting 220Vac driven electric air flow control valve local control box, power distribution by the power professional responsible for. The cross-sectional area of external control cable is 1.5mm2, and the valve actuator provides external terminals. The working status of the damper is completed by the local control box.2. Fire damperFire damper is mainly composed of several parts such as valve body, blade, transmission mechanism, actuator and temperature sensor, etc. The non-electrically controlled fire damper is the same as FASV. Non-electrically controlled fire damper and FAS system have monitoring interface requirements, and the fire damper actuator with interlocking protection function with the fan needs to provide two independent dry nodes, and at the same time to meet the signal feedback status display. Rated voltage: DC24±2.4V electronically controlled fire damper, smoke valve and normally closed smoke vent and FAS system has control interface requirements, the valve actuator provides terminals to meet the automatic control function of the FAS system, and at the same time, the terminal settings to meet the more than one valve in series controlled by a circuit. 3, the air vent motorized valve air vent motorized valve is mainly composed of the valve body, blades, actuators and other parts, Actuator and other parts, characterized as follows: air outlet electric adjustment valve: 220V drive, power distribution by the power professional responsible for. Air vent electric normally closed valve: DC24±2.4V, with FAS system control interface requirements. Dampers interface: electric air flow control valve equipment is also used for fire conditions. In case of fire, FAS sends fire mode command to BAS, and BAS executes fire linkage control to TFJ. Interface between gas extinguishing system (QM) and HVAC specialized motorized control valve (TFJ): control and monitoring of gas extinguishing system (QM) and motorized control valve. In case of fire, QM sends a fire alarm signal to FAS, and QM performs fire linkage control of TFJ. Interface between fire alarm system (FAS) and HVAC professional electric smoke vent equipment (SEG): FAS control of SEG interface and SEG status return signal.
Actuator control principle: hand/automatic control: electronically controlled smoke and fire damper, electronically controlled smoke and fire damper, electric smoke and fire damper, electric smoke and fire damper, normally closed smoke vent, actuator hand/automatic control switch to the automatic gear when the fire damper is controlled by the FAS system, which can not be manually controlled at this time; hand/automatic control switch to the manual gear fire damper can be manually operated, which is when the control of the FAS system was Manual reset: the electric smoke and fire damper is controlled by FAS system. Manual reset: electric smoke and fire damper, electric smoke and fire damper, normally closed smoke vent Manual reset clockwise; electric smoke and fire damper, electric smoke and fire damper, smoke and fire damper, smoke and fire damper counterclockwise manual reset.
Installation of air flow control valve: air flow control valve installation, according to the national building standard design atlas 07K120 “air valve selection and installation”, explained as follows: 1. shipped to the construction site of the air valve products, the installation unit should be reported to the superintendent for acceptance, according to the packing list of the box to check the certificate of conformity, test reports and installation instructions, etc., one by one to check the product model, specifications, materials, marking and control mode is Conform to the provisions of the design documents, and should make a good record and the signatures of all parties to confirm. 2. dampers in place before installation should be tested one by one to see if the structure is firm, tight, switching operation test, to check whether it is flexible and reliable; on the electric damper should be electrified one by one and test, make a good record of the test. 3. dampers in place before the installation of the valve must be checked before the scope of its application, the installation location, the direction of the airflow and the operation of the surface is correct. 4. The opening and closing direction and opening angle of the damper should be accurately marked on the visible surface.5. For the damper installed at a high place, the manual manipulation device should be 1.5-1.8m away from the exposed surface or the operation platform.6. The operating surface of the damper should be not less than 200mm away from the wall, roof and other equipment, pipeline, and the damper should not be installed in the structural layer or holes. The width of the seam around the valve should be more than 150mm. 7. Check whether the flange size reserved for connecting ducts, the diameter and distance of the holes drilled, the flatness and parallelism of the flange surface, the material and thickness of the gasket, and the connection of non-metallic ducts are in accordance with the requirements. 8. Check whether the location and practice of the support and hanger are in accordance with the specifications or the design documents. 9. Single piece of air valve weight greater than 50kg should be set up a separate support, hangers; electric air valve is generally appropriate to set up a separate support, hangers; used for soft non-metallic duct system air valve is generally appropriate to set up a separate support, hangers. 9. for clean ventilation system air valve must be cleaned according to the requirements of the valve before installation of the internal surface, to achieve the appropriate clean standards closed ends, encapsulated plate in place before removal. Scrub clean air-conditioning system damper inner surface should be used not to lose fiber materials, scrub clean damper shall not be stored in the room without good walls, floors, doors and windows, temporary storage places must be kept clean.10. Conveying medium temperature exceeds 80 ℃ damper, in addition to the design requirements of heat insulation, should also be carefully checked expansion and contraction compensatory measures and protective measures.