CN2729461Y - Safety valve for methane tank - Google Patents

Safety valve for methane tank Download PDF

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Publication number
CN2729461Y
CN2729461Y CN 200420079333 CN200420079333U CN2729461Y CN 2729461 Y CN2729461 Y CN 2729461Y CN 200420079333 CN200420079333 CN 200420079333 CN 200420079333 U CN200420079333 U CN 200420079333U CN 2729461 Y CN2729461 Y CN 2729461Y
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CN
China
Prior art keywords
piston
valve
valve body
pressure
provided
Prior art date
Application number
CN 200420079333
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Chinese (zh)
Inventor
韩传友
Original Assignee
韩传友
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 韩传友 filed Critical 韩传友
Priority to CN 200420079333 priority Critical patent/CN2729461Y/en
Application granted granted Critical
Publication of CN2729461Y publication Critical patent/CN2729461Y/en

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Abstract

The utility model relates to a safety valve for methane tank, comprising a valve body and a valve cover which are connected with each other. The valve body is provided with a vent pipe, and the valve cover is provided with a pressure relief pipe; the inner of the vent pipe is provided with a pressure relief port, and the inner of the valve body on the upper end of the pressure relief port is sealed and covered by a piston; the upper end of a piston rod linked with the piston passes and coats a regulating bolt with a pressure relief hole, and the regulating bolt and the inner wall of the valve are threaded connection; a pressure regulating spring is arranged between the regulating bolt and the piston, the inner wall of the valve body on the upper part of the piston sags and forms a pressure relief groove. The utility model can overcome that the prior art lacks efficient design of the safety valve in methane pipelines and has definite potential safety hazard during using process of the methane tank; when the pressure of the methane exceeds the preset value in pipelines, the safety valve for methane tank can automatically vent and relieve pressure, which effectively ensure safe operation of methane tank and pipelines thereof; The utility model has the advantages of simple structure, accurate pressure control, and strong reliability.

Description

沼气安全阀 Biogas safety valve

所属技术领域本实用新型涉及一种沼气安全阀。 Skilled in the art The present invention relates to a gas safety valve.

背景技术 Background technique

在现有的沼气管路中,都没有专用的安全阀设计,一般都只是在沼气池的出口端设置一些安全装置,但这些装置只对沼气池起保护作用,而在管路中却还存在一定的安全隐患。 In a conventional gas pipeline, no special design of the valve, but is generally provided some security means at the outlet end of the digester, the digester these devices only protective, but still present in the piping certain security risks.

发明内容 SUMMARY

为了克服现有技术在沼气管路中缺乏有效的安全阀设计,在沼气使用过程中存在一定的安全隐患的问题,本实用新型提供一种沼气安全阀,该沼气安全阀的结构简单、压力控制准确、可靠性强。 In order to overcome the prior art valve design is the lack of effective biogas line, there are some safety hazards during use of biogas, the present invention provides a gas valve, a simple structure of the gas valve, the pressure control accurate, reliable.

本实用新型解决其技术问题所采用的技术方案是:包括相连的阀体和阀盖,阀体上设有通气管,阀盖上设有泄压管,通气管中设置泄压口,在泄压口上端的阀体中封盖活塞,与活塞连动的活塞杆的上端穿套过带泄压孔的调节螺栓,调节螺栓与阀盖内壁螺纹连接,在调节螺栓和活塞之间设有压力调节弹簧,活塞上方的阀体内壁凹陷形成泄压槽。 Aspect of the present invention to solve the technical problem is that: the valve body and comprising a cover connected with the vent valve body, the valve cover is provided with pressure relief pipe, the vent pipe is provided pressure relief port, the vent the upper end of the valve opening pressure of the closure piston, an upper end of the piston rod of the linkage is sleeved over adjustment bolt with a pressure relief hole, the inner wall of the adjusting bolt and threaded bonnet, a pressure between the adjusting screw and the piston regulating spring, body wall above the piston is recessed relief groove.

在活塞的外周设有密封圈,活塞通过密封圈与阀体内壁密封配合,穿套过调节螺栓的活塞杆为方型并连动调节螺栓,活塞杆的上端面设有转动槽。 A sealing ring on the outer periphery of the piston, the piston seal by sealing engagement with the body wall, is sleeved over adjustment bolt rod is square and the interlocking adjustment bolt is provided with a piston rod end surface of the rolling groove.

本实用新型通过上述具体设计,当管路内的沼气压力超过预设值时即自动排气泄压,有效保证了沼气池及其管路的安全运行,具有结构简单、压力控制准确、生产成本较低、可靠性强的优点。 In particular the present invention by the above design, when the gas pressure in the line exceeds a preset value the waste gate automatically, effectively ensure the safe operation of the digester and the conduit, has a simple structure, an accurate pressure control, the production costs low, high reliability advantages.

附图说明 BRIEF DESCRIPTION

以下结合附图和实施例说明本实用新型的详细内容。 In conjunction with the accompanying drawings and the following Examples illustrate embodiments of the present invention is detailed.

图1是本实用新型的结构示意图;图2是图1的俯视局剖图;。 FIG. 1 is a structural diagram of the present invention novel; FIG. 2 is a plan sectional view of FIG. 1 Board;.

具体实施方式 Detailed ways

如图所示,本实用新型包括密封相连的阀体1和阀盖2,阀体1上设有通气管3,阀盖2上设有泄压管4,通气管3中设置泄压口5,在泄压口5上端的阀体1中封盖活塞6,在活塞6的外周设有密封圈12,活塞6通过密封圈12与阀体1内壁密封配合,与活塞6连动的活塞杆7的上端穿套过带泄压孔8的调节螺栓9,穿套过调节螺栓9的活塞杆7为方型并连动调节螺栓9,活塞杆7的上端面设有转动槽13,调节螺栓9与阀盖2内壁螺纹连接,在调节螺栓9和活塞6之间设有压力调节弹簧10,活塞6上方的阀体1内壁凹陷形成泄压槽11。 As shown, the present invention comprises a valve connected to the sealing lid 2 and the valve 1, the valve body is provided with a vent tube 3, cover 2 is provided with a pressure relief valve tube 4, through the pipe 3 is provided with pressure relief port 5 , the upper end of the valve body 5 in a relief port closure piston 6, the outer periphery of the piston 6, a sealing ring 12, the piston 6 with the sealing ring 12 by the inner wall of the valve body, the piston 6 and the interlocking rod 7 is sleeved over the upper end of the adjusting bolt 9 with a relief hole 8, the piston rod is sleeved over adjustment bolt 9 and 7 is rectangular interlocking the adjusting bolt 9, the upper end surface of the piston rod 7 is provided with grooves 13 is rotated, the adjusting bolt 92 screwed to an inner wall of the valve cover, a pressure is provided between the adjusting screw 9 and the piston 6 regulating spring 10, the inner wall of the valve body 1 a recess 6 is formed above the piston relief groove 11. 在工作状态下,沼气池及其管路内的压力在10kpa左右,当沼气压力超过12kpa时,沼气压力推动活塞6上升,沼气依次通过泄压口5、泄压槽11、阀体1内腔、泄压孔8和泄压管4自动排气泄压,当沼气压力回落到10kpa以下时,在压力调节弹簧10的作用下活塞6下移封闭泄压口5,自动终止排气。 In the operating state, the pressure in the line and the digester at about 10 kPa, when the gas pressure exceeds 12kPa, gas pressure pushes the piston 6 is raised, passes through the gas relief port 5, the pressure relief groove 11, the valve body lumen 1 , relief holes 8 and the relief pressure relief automatic exhaust pipe 4, when the gas pressure down to 10kpa below the piston 6 downward pressure regulating relief port 5 is closed under the action of spring 10, the exhaust gas is automatically terminated. 这样,就能保持沼气池及其管路内的气体压力始终在正常允许范围内。 Thus, the gas pressure can be maintained within the digester and the pipes remain in the normal allowable range.

Claims (2)

1.一种沼气安全阀,包括相连的阀体和阀盖,阀体上设有通气管,阀盖上设有泄压管,其特征是通气管(3)中设置泄压口(5),在泄压口(5)上端的阀体(1)中封盖活塞(6),与活塞(6)连动的活塞杆(7)的上端穿套过带泄压孔(8)的调节螺栓(9),调节螺栓(9)与阀盖(2)内壁螺纹连接,在调节螺栓(9)和活塞(6)之间设有压力调节弹簧(10),活塞(6)上方的阀体(1)内壁凹陷形成泄压槽(11)。 CLAIMS 1. A gas valve comprising a valve body and a valve connected to the cover, the vent is provided on the valve body, the valve cover is provided with a pressure relief tube, characterized in that the vent (3) is provided in the relief port (5) , (5) the upper end of the valve body (1) in the piston cover (6) in the relief port, the upper end of the piston (6) is connected a piston rod (7) is movable sleeved relief hole through the adjusting belt (8) bolts (9), adjusting screw (9) and the valve cover (2) the inner wall of a threaded connection, provided between the pressure regulating spring adjusting screw (9) and the piston (6) (10), the valve body (6) above the piston (1) a recess formed in the inner wall of the pressure relief groove (11).
2.根据权利要求1所述的沼气安全阀,其特征是在活塞(6)的外周设有密封圈(12),活塞(6)通过密封圈(12)与阀体(1)内壁密封配合,穿套过调节螺栓(9)的活塞杆(7)为方型并连动调节螺栓(9),活塞杆(7)的上端面设有转动槽(13)。 The gas valve according to claim 1, characterized in that a sealing ring (12), a piston (6) by a sealing ring (12) and the valve body (1) fitted in the inner wall of the outer periphery of the piston seal (6) , sleeved over the adjusting screw (9) of the piston rod (7) is rectangular and interlocking the adjusting bolt (9), the upper end surface of the piston rod (7) is provided with a rolling groove (13).
CN 200420079333 2004-09-07 2004-09-07 Safety valve for methane tank CN2729461Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420079333 CN2729461Y (en) 2004-09-07 2004-09-07 Safety valve for methane tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420079333 CN2729461Y (en) 2004-09-07 2004-09-07 Safety valve for methane tank

Publications (1)

Publication Number Publication Date
CN2729461Y true CN2729461Y (en) 2005-09-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420079333 CN2729461Y (en) 2004-09-07 2004-09-07 Safety valve for methane tank

Country Status (1)

Country Link
CN (1) CN2729461Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102401232A (en) * 2011-09-29 2012-04-04 郑州大学 Methane saving device
CN105042135A (en) * 2015-07-21 2015-11-11 江苏通达船用阀泵有限公司 Novel right-angled safety valve
CN106838391A (en) * 2017-03-29 2017-06-13 中石化江汉石油工程有限公司 Cable perforation automatic safe relief valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102401232A (en) * 2011-09-29 2012-04-04 郑州大学 Methane saving device
CN102401232B (en) * 2011-09-29 2014-02-12 郑州大学 Methane saving device
CN105042135A (en) * 2015-07-21 2015-11-11 江苏通达船用阀泵有限公司 Novel right-angled safety valve
CN106838391A (en) * 2017-03-29 2017-06-13 中石化江汉石油工程有限公司 Cable perforation automatic safe relief valve

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