Smoke exhaust valve full automatic execution mechanism

An actuator, fully automatic technology, applied in the direction of engine components, valve details, valve devices, etc., can solve the problems of high operation requirements, long action time, no change of torque, etc., to achieve enhanced tensile performance and wear resistance, Good wear resistance and self-lubricating properties, not easy to puncture and wear

An actuator, fully automatic technology, applied in the direction of engine components, valve details, valve devices, etc., can solve the problems of high operation requirements, long action time, no change of torque, etc., to achieve enhanced tensile performance and wear resistance, Good wear resistance and self-lubricating properties, not easy to puncture and wear

CN104482271AActive Publication Date: 2015-04-01NINGBO DONGLING PLUMB & AIR CONDITIONING PARTS & ACCESSORIES
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  • Smoke exhaust valve full automatic execution mechanism
  • Smoke exhaust valve full automatic execution mechanism
  • Smoke exhaust valve full automatic execution mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The composition of the fluorine-containing plastic in this embodiment is (in parts by weight): 50 parts of PTFE powder; 35 parts of PFA powder; 15 parts of coupling agent, and the composition of the graded carbon fiber is 3 parts of long fiber carbon fiber and short 2 parts of carbon fiber, and the length ratio of long-fiber carbon fiber to short-fiber carbon fiber is 2:1. The raw material powder is mixed by initially adding 60% of the total volume of the powder as a coupling agent ethylenediaminepropylmethyldimethoxysilane, and after stirring at a low speed of 30rpm for 20min, reduce the amount of the coupling agent ethylenediaminepropylmethyldimethoxysilane in the system. When the content of methyldimethoxysilane reaches 30% by volume, gradually increase the stirring speed to 120rpm, keep stirring for 220min, continue to evaporate the excess coupling agent until it meets the process requirements, and discharge the material to obtain a raw material with complete surface...

Embodiment 2

[0037] The composition of the fluorine-containing plastic in this embodiment is (in parts by weight): 80 parts of PTFE powder; 30 parts of PFA powder; 20 parts of coupling agent, and the composition of the graded carbon fiber is 5 parts of long fiber carbon fiber and short fiber 1 part of carbon fiber, and the length ratio of long-fiber carbon fiber to short-fiber carbon fiber is 3:1. The raw material powder is mixed by initially adding 70% of the total volume of the powder as a coupling agent ethylenediaminepropylmethyldimethoxysilane. After stirring at a low speed of 20rpm for 30min, reduce the amount of the coupling agent ethylenediaminepropylmethyldimethoxysilane in the system. When the content of methyldimethoxysilane reaches 45% by volume, gradually and evenly increase the stirring speed to 140rpm, and keep stirring for 200 minutes, then continue to evaporate the excess coupling agent until it meets the process requirements, and then discharge the material, and obtain the...

Embodiment 3

[0039] The composition of the fluorine-containing plastic in this embodiment is (in parts by weight): 60 parts of PTFE powder; 40 parts of PFA powder; 30 parts of coupling agent, and the composition of the graded carbon fiber is 4 parts of long fiber carbon fiber and short fiber 3 parts of carbon fiber, and the length ratio of long-fiber carbon fiber to short-fiber carbon fiber is 2.5:1. The raw material powder is mixed by initially adding 80% of the total volume of the powder as a coupling agent ethylenediaminepropylmethyldimethoxysilane. After stirring at a low speed of 25rpm for 25min, reduce the amount of the coupling agent ethylenediaminepropylmethyldimethoxysilane in the system. When the content of methyldimethoxysilane reaches 40% by volume, gradually and evenly increase the stirring speed to 150rpm, keep stirring for 180 minutes, continue to evaporate the excess coupling agent until it meets the process requirements, and then discharge the material, and obtain the raw m...

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Abstract

The invention discloses a smoke exhaust valve full automatic execution mechanism. The smoke exhaust valve full automatic execution mechanism comprises a micro switch arranged in a housing, a relay, a micro shifting lever, a steel wire rope, a motor on a fixing frame, a clutch, a gear drive reduction mechanism, a rope reeling wheel and a pawl installed on the fixing frame, wherein the micro shifting lever is used in combination with the micro switch, the pawl is made of fluorine plastic, the fluorine plastic is mainly prepared from raw materials of, based on weight parts, 50-80 parts of PTFE (polytetrafluoroethylene) powder, 30-40 parts of PFA (polyfluoroalkoxy) powder, 5-10 parts of grading carbon fibers and 15-30 parts of coupling agents, wherein each grading carbon fiber consists of 3-5 parts of long filament carton fibers and the balance short filament carton fibers, and length rate of each long filament carton fiber and each short filament carton fiber is 2-3:1. The smoke exhaust valve full automatic execution mechanism is convenient to operate, and has the advantages of being large in torsion, short in action time, stable in performance, low in component weight, resistant to abrasion and excellent in use performance.

Description

technical field [0001] The invention relates to a device installed on a plate-type smoke exhaust port in a high-rise building smoke exhaust system to open or close a smoke exhaust valve, specifically a fully automatic actuator for the smoke exhaust valve. Background technique [0002] The website of the State Intellectual Property Office of China announced a long-distance exhaust valve actuator, which uses a solenoid valve as the power device, and moves the iron core through the electromagnet to drive the transmission mechanism composed of the swing rod and the swing frame. The ratchet and the ratchet, which act as a limit on the sheave, are released, and the smoke exhaust valve is opened under the action of its own tension spring. Although the actuator can remotely control the exhaust valve, it still has the following defects in actual use: [0003] 1. Since the above-mentioned actuators in the prior art can open the smoke exhaust valve remotely, but cannot close the smoke...

Claims

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Application Information

Patent Timeline
01 Apr 2015
Publication
CN104482271A
IPC
F16K31/04; F16K31/53; C08L27/18; C08K7/06
CPC
C08K7/06; C08L27/18; F16H55/06; F16K31/042; F16K31/043
Inventors
戚江华; 李海学