CN2547908Y - 空压机高精度安全阀 - Google Patents

空压机高精度安全阀 Download PDF

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Publication number
CN2547908Y
CN2547908Y CN 02220985 CN02220985U CN2547908Y CN 2547908 Y CN2547908 Y CN 2547908Y CN 02220985 CN02220985 CN 02220985 CN 02220985 U CN02220985 U CN 02220985U CN 2547908 Y CN2547908 Y CN 2547908Y
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China
Prior art keywords
valve
air compressor
safety valve
spool
valve seat
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Expired - Fee Related
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CN 02220985
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English (en)
Inventor
马骏
韩玉彬
陈加其
陈振国
沈玉宝
储祥林
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HENGWEI MARINE AUX Y ENGINE MF
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HENGWEI MARINE AUX Y ENGINE MF
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Priority to CN 02220985 priority Critical patent/CN2547908Y/zh
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Publication of CN2547908Y publication Critical patent/CN2547908Y/zh
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Abstract

一种空压机高精度安全阀,包括阀体、阀座、阀芯、压力弹簧、调节螺杆等主要构件。阀芯在弹簧压力作用下与阀座压紧,阀芯与阀座的接触部位镶嵌软质密封材料,一般采用聚四氟乙烯。本实用新型用在空气压缩机上,起到安全作用,比起现有平面形阀瓣密封结构的安全阀,具有加工要求低,工艺性好;所需弹簧压力可减小,进而提高复位精度,增大可靠性等优点。

Description

空压机高精度安全阀
技术领域
本实用新型涉及一种空压机安全阀,特别是对密封部位进行改进的高精度弹簧式安全阀。
背景技术
安全阀是空气压缩机的一种重要保护装置,当系统中的压力超过工作压力时,安全阀自动开启,放掉多余气体,以使系统保持正常工作压力。弹簧式安全阀的弹簧压力从上部作用于阀芯,将阀芯压紧在阀座上,容器中的气体压力从下部作用于阀芯上,正常状态下,阀芯的上部压力大于下部压力,构成阀芯与阀座之间的密封。现有的弹簧式安全阀采用平面形阀瓣密封结构,靠阀芯与阀座的接触部位直接密封,其缺陷是:阀芯、阀座的加工要求高,工艺性不好,密封力要求较大,进而复位精度低,可靠性得不到有效保障。
发明内容
本实用新型的目的在于克服现有技术中的不足之处,提供一种阀芯、阀座加工要求降低,工艺性好,复位精度高,可靠性得到保障的空压机高精度安全阀。
本实用新型的技术方案是:空压机高精度安全阀包括阀体、阀座、阀芯、压力弹簧、调节螺杆等重要构件,阀芯在弹簧压力作用下与阀座密封接触。改进之处是阀芯与阀座的接触部位镶嵌软质密封材料。
上述软质密封材料为聚四氟乙烯,软质密封材料镶嵌在阀芯上。
由于采用软质密封材料进行密封,阀芯与阀座不需要直接接触,加工要求可降低,工艺性好;软质材料的密封,特别是聚四氟乙烯的优良性能不要求那么大的密封力,这样弹簧压力可减小,进而提高复位精度,可靠性得到有效保障。
附图说明
附图为本实用新型结构示意图。
具体实施方式
如图,阀芯2在弹簧1的作用下与阀座4压紧,阀芯上与阀座相接触的部位镶嵌聚四氟乙烯软质密封材料3。

Claims (3)

1、一种空压机高精度安全阀,阀芯在弹簧压力作用下与阀座密封接触,其特征是阀芯与阀座的接触部位镶嵌软质密封材料。
2、按权利要求1所述的安全阀,其特征是所述软质密封材料为聚四氟乙烯。
3、按权利要求1所述的安全阀,其特征是所述软质密封材料镶嵌在阀芯上。
CN 02220985 2002-06-04 2002-06-04 空压机高精度安全阀 Expired - Fee Related CN2547908Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02220985 CN2547908Y (zh) 2002-06-04 2002-06-04 空压机高精度安全阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02220985 CN2547908Y (zh) 2002-06-04 2002-06-04 空压机高精度安全阀

Publications (1)

Publication Number Publication Date
CN2547908Y true CN2547908Y (zh) 2003-04-30

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Family Applications (1)

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CN 02220985 Expired - Fee Related CN2547908Y (zh) 2002-06-04 2002-06-04 空压机高精度安全阀

Country Status (1)

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CN (1) CN2547908Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013170749A1 (zh) * 2012-05-16 2013-11-21 丹阳市飞轮气体阀门有限公司 低温绝热气瓶安全阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013170749A1 (zh) * 2012-05-16 2013-11-21 丹阳市飞轮气体阀门有限公司 低温绝热气瓶安全阀
US9464763B2 (en) 2012-05-16 2016-10-11 Danyang Feilun Gas Valve Co., Ltd. Safety valve for cryogenic insulated gas cylinder

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