The utility model discloses a pressure regulating valve based on internal pressure taking, which comprises a valve body, a lower membrane cover and an upper membrane cover, and diaphragms are arranged in the lower membrane cover; a wave spring is arranged in the upper membrane cover; an internal thread is arranged on the inner wall of the upper membrane cover; an annular regulating sleeve is arranged at the axial top of the wave spring along the circumference to the outer edge; and an external thread adapted to the internal thread is arranged on the axial outer wall of the annular regulating sleeve; The axial bottom end of the adjusting screw is used for contacting with the diaphragm; a through hole is arranged on the sealing cover plate, and a threaded sleeve is arranged in the through hole; the pressure regulating valve also includes an adjusting screw, whose axial end adapts to the threaded sleeve and extends through the through hole into the upper diaphragm cover; the end end of the adjusting screw extends into the upper diaphragm cover is provided with a pressure plate; the lower plate surface of the pressure plate is convex with a number of jaws; and the annular adjusting sleeve is directed The surface is provided with a clamping slot adapted to the clamping teeth. The utility model increases the adjusting range of the output pressure of the valve and the adjusting flexibility by adjusting the wave spring assembly.
【技术实现步骤摘要】
基于内部取压的压力调节阀
本技术涉及阀门
,具体涉及一种基于内部取压的压力调节阀。
技术介绍
自力式压力调节阀无需外加能源,能在无电无气的场所工作,既方便又节约了能源。压力分段范围细且互相交叉,调节精度高。压力设定值在运行期间可连续设定。橡胶膜片式检测,执行机构检测精度高、动作灵敏。采用压力平衡机构,使调节阀反应灵敏、控制精确。现有的弹簧薄膜式内取压自力阀门,引入了波形弹簧预压,替代了传统的柱形弹簧,既大为降低了设备总高度,减轻了重量,更重要的是避免了柱形弹簧的诸多不可靠因素,有效延长了调节阀的服役寿命,但是通过调节波簧组件对于阀门输出压力大小的调节范围较小。
技术实现思路
本技术所要解决的技术问题是:现有的弹簧薄膜式内取压自力阀门,通过调节波簧组件对于阀门输出压力大小的调节范围较小,本技术提供了解决上述问题的基于内部取压的压力调节阀。本技术通过下述技术方案实现:基于内部取压的压力调节阀,包括由下至上依次连接的阀体、下膜盖和上膜盖,所述下膜盖内靠近底端处设有膜片;所述上膜盖内设有波簧;阀杆的轴向一端通过下托盘和上托盘压紧与膜片连接,且膜片位于下托盘和上托盘之间,阀杆的轴向另一端伸入阀体内,其特征在于,所述上膜盖呈两端敞口的筒体结构,上膜盖的轴向顶端可拆卸设有密封盖板,上膜盖的轴向底端与下膜盖连接;上膜盖的内壁上设有内螺纹,所述波簧的轴向顶端处沿周向外缘设有环形调节套,所述环形调节套的轴向外缘侧壁上设有与所述内螺纹适配的外螺纹;波簧的轴向底端用于与膜片接触;所述密封盖板上开设有通孔,通孔内设有螺纹套;所述压力调节阀还包括调节螺杆,所述调节螺杆的轴向一端与螺纹套 ...
【技术保护点】
1.基于内部取压的压力调节阀,其特征在于,包括由下至上依次连接的阀体(1)、下膜盖(2)和上膜盖(3),所述下膜盖(2)内靠近底端处设有膜片(4);所述上膜盖(3)内设有波簧(5);阀杆(8)的轴向一端通过下托盘(9)和上托盘(10)压紧与膜片(4)连接,且膜片(4)位于下托盘(9)和上托盘(10)之间,阀杆(8)的轴向另一端伸入阀体(1)内,所述上膜盖(3)呈两端敞口的筒体结构,上膜盖(3)的轴向顶端可拆卸设有密封盖板(6),上膜盖(3)的轴向底端与下膜盖(2)连接;上膜盖(3)的内壁上设有内螺纹,所述波簧(5)的轴向顶端处沿周向外缘设有环形调节套(7),所述环形调节套(7)的轴向外缘侧壁上设有与所述内螺纹适配的外螺纹;波簧(5)的轴向底端用于与膜片(4)接触;所述密封盖板(6)上开设有通孔,通孔内设有螺纹套(11);所述压力调节阀还包括调节螺杆(12),所述调节螺杆(12)的轴向一端与螺纹套(11)适配穿过通孔伸入上膜盖(3)内,且调节螺杆(12)伸入上膜盖(3)内的端部设有压板(13),所述压板(13)的下板面上凸设有若干卡齿(14),所述环形调节套(7)朝向压板(13)的端面上 ...
【技术特征摘要】
1.基于内部取压的压力调节阀,其特征在于,包括由下至上依次连接的阀体(1)、下膜盖(2)和上膜盖(3),所述下膜盖(2)内靠近底端处设有膜片(4);所述上膜盖(3)内设有波簧(5);阀杆(8)的轴向一端通过下托盘(9)和上托盘(10)压紧与膜片(4)连接,且膜片(4)位于下托盘(9)和上托盘(10)之间,阀杆(8)的轴向另一端伸入阀体(1)内,所述上膜盖(3)呈两端敞口的筒体结构,上膜盖(3)的轴向顶端可拆卸设有密封盖板(6),上膜盖(3)的轴向底端与下膜盖(2)连接;上膜盖(3)的内壁上设有内螺纹,所述波簧(5)的轴向顶端处沿周向外缘设有环形调节套(7),所述环形调节套(7)的轴向外缘侧壁上设有与所述内螺纹适配的外螺纹;波簧(5)的轴向底端用于与膜片(4)接触;所述密封盖板(6)上开设有通孔,通孔内设有螺纹套(11);所述压力调节阀还包括调节螺杆(12),所述调节螺杆(12)的轴向一端与螺纹套(11)适配穿过通孔伸入上膜盖(3)内,且调节螺杆(12)伸入上膜盖(3)内的端部设有压板(13),所述压板(13)的下板面上凸设有若干卡齿(14),所述环形调节套(...
【专利技术属性】
技术研发人员:陈伟,孙标,王帮春,
申请(专利权)人:四川勃朗蜀威科技有限公司,
类型:新型
国别省市:四川,51
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