CN104373647A - Lubricating oil low-pressure protecting device - Google Patents

Lubricating oil low-pressure protecting device Download PDF

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Publication number
CN104373647A
CN104373647A CN201410702720.2A CN201410702720A CN104373647A CN 104373647 A CN104373647 A CN 104373647A CN 201410702720 A CN201410702720 A CN 201410702720A CN 104373647 A CN104373647 A CN 104373647A
Authority
CN
China
Prior art keywords
diaphragm
diaphragm assembly
main valve
rubber diaphragm
lubricating oil
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410702720.2A
Other languages
Chinese (zh)
Inventor
陈琳
刘正发
胡晨
刘洋
曲龙
李文颉
白晓东
许云志
贾德智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
703th Research Institute of CSIC
Original Assignee
703th Research Institute of CSIC
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.)
Filing date
Publication date
Application filed by 703th Research Institute of CSIC filed Critical 703th Research Institute of CSIC
Priority to CN201410702720.2A priority Critical patent/CN104373647A/en
Publication of CN104373647A publication Critical patent/CN104373647A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
    • F16K17/0453—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the member being a diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

The invention provides a lubricating oil low-pressure protecting device. A shell is divided into an upper space and a lower space through a rubber diaphragm assembly. The upper portion of the rubber diaphragm assembly is connected with a spring. The upper portion of the spring is connected with an adjusting bolt. The screw cap of the adjusting bolt extends out of the shell after the adjusting bolt is in threaded sealing connection with the shell. The shell space on the upper portion of the rubber diaphragm assembly is provided with a through hole to be connected with a control cavity connector. The shell space on the lower portion of the rubber diaphragm assembly is provided with a through hole to be connected with a main valve inlet. The lower portion of the rubber diaphragm assembly is connected with a valve base. A main valve outlet is formed in the lower face of the valve base. In the elastic deformation range of the rubber diaphragm assembly, when the rubber diaphragm assembly deforms downwards, the bottom plane of the valve base makes contact with the upper plane of the main valve outlet. According to the lubricating oil low-pressure protecting device, the structure is simple, no dead zone exists, no friction is produced, the sensitivity is high, the baffle inertia is small, the driving torque is small, dynamic response speed is high, the needed control force is small, a main valve cavity and a control cavity are connected through a connecting bolt and a locking plate, and therefore maintenance is facilitated.

Description

Lubricating oil low-voltage protective gear
technical field:
The present invention relates to Thermal Energy and Power Engineering control field, specifically a kind of lubricating oil low-voltage protective gear of the core component of gas-turbine driven supercharger lubricating oil low-voltage protective system.
background technique:
In process along with the Defence business develop rapidly of naval of China, the steam power naval vessel construction of naval plays significant role, and gas-turbine driven supercharger is the visual plant in naval of China XX type warship steam power system, lubricating oil low-voltage protective gear is the core component of gas-turbine driven supercharger lubricating oil low-voltage protective system, lubricating oil low-voltage protective gear is the designing requirement that gas-turbine driven supercharger realizes lubricating oil low-voltage protective function, in gas-turbine driven supercharger running, when machine set system lubricating oil pressure is reduced to setting protection value, lubricating oil low-voltage protective gear is opened, realize interlocking blowing out stopping function, lubricating oil low-voltage protective gear must can meet gas-turbine driven supercharger can realize lubricating oil low-voltage protective function under any operating mode, and operating pressure oscillations is little, running parameter is stablized, therefore, the development of lubricating oil low-voltage protective gear has very important significance.
summary of the invention:
In order to solve the technical problem realizing gas-turbine driven supercharger lubricating oil low-voltage protective function, the present invention proposes lubricating oil low-voltage protective gear.
Technological scheme of the present invention is: lubricating oil low-voltage protective gear, comprise housing, housing is separated into upper and lower two spaces by diaphragm of rubber assembly, diaphragm of rubber assembly top linking springs, spring top connects adjustment bolt, the nut adjusting bolt after adjustment bolt is connected with housing thread seal stretches out outside, the shell space on diaphragm of rubber assembly top has through hole connection control chamber interface, the shell space of diaphragm of rubber assembly bottom has through hole and connect main valve inlet, diaphragm of rubber assembly bottom connecting valve seat, Main valve outlet is had below valve seat, in the regime of elastic deformation of diaphragm of rubber assembly, when diaphragm of rubber assembly is out of shape downwards, valve cup bottom plane produces with the upper plane of Main valve outlet and contacts.
The present invention has following beneficial effect: structure is simple, and without dead band, not friction, highly sensitive, baffle plate inertia is little, and driving moment is little, and dynamic response is high, and required control force is little, and main valve chamber is connected with locking plate by connecting bolt with control chamber, so that and maintenance.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
1-Main valve outlet in figure; 2-valve seat; 3-diaphragm of rubber assembly; 4-spring; 5-adjusts bolt; 6-control chamber interface; 7-main valve inlet; 8-housing.
embodiment:
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, lubricating oil low-voltage protective gear, comprise housing 8, housing 8 is separated into upper and lower two spaces by diaphragm of rubber assembly 3, diaphragm of rubber assembly 3 top linking springs 4, spring 4 top connects adjustment bolt 5, the nut adjusting bolt 5 after adjustment bolt 5 is connected with housing 8 thread seal stretches out housing 8 outside, the housing 8 on diaphragm of rubber assembly 3 top spatially has through hole connection control chamber interface 6, the housing 8 of diaphragm of rubber assembly 3 bottom spatially has through hole and connects main valve inlet 7, diaphragm of rubber assembly 3 bottom connecting valve seat 2, Main valve outlet 1 is had below valve seat 2, in the regime of elastic deformation of diaphragm of rubber assembly 3, when diaphragm of rubber assembly 3 is out of shape downwards, valve seat 2 bottom plane produces with the upper plane of Main valve outlet 1 and contacts.
Lubricating oil enters in control chamber by control chamber lubricating oil entrance 6; when control chamber lubricating oil pressure is higher than setting spring 4 pulling force; valve seat is closed by diaphragm of rubber assembly 3; main valve inlet 7 is not communicated with Main valve outlet 1; when lubricating oil pressure in control chamber is lower than setting spring 4 pulling force; spring 4 pulling force will overcome lubricating oil pressure in control chamber and be opened by valve seat; main valve inlet 7 is communicated with Main valve outlet 1; gas-turbine driven supercharger monitor protective system pulsed operation water will enter into boiler protection control valve by main valve inlet 7; the action of boiler protection control valve, realizes interlocking blowing out, shutdown.

Claims (1)

1. a lubricating oil low-voltage protective gear, comprise housing (8), it is characterized in that: housing (8) is separated into upper and lower two spaces by diaphragm of rubber assembly (3), diaphragm of rubber assembly (3) top linking springs (4), spring (4) top connects adjustment bolt (5), the nut adjusting bolt (5) after adjustment bolt (5) is connected with housing (8) thread seal stretches out housing (8) outside, the housing (8) on diaphragm of rubber assembly (3) top spatially has through hole connection control chamber interface (6), the housing (8) of diaphragm of rubber assembly (3) bottom spatially has through hole and connects main valve inlet (7), diaphragm of rubber assembly (3) bottom connecting valve seat (2), Main valve outlet (1) is had below valve seat (2), in the regime of elastic deformation of diaphragm of rubber assembly (3), when diaphragm of rubber assembly (3) is out of shape downwards, valve seat (2) bottom plane produces with the upper plane of Main valve outlet (1) and contacts.
CN201410702720.2A 2014-11-29 2014-11-29 Lubricating oil low-pressure protecting device Pending CN104373647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410702720.2A CN104373647A (en) 2014-11-29 2014-11-29 Lubricating oil low-pressure protecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410702720.2A CN104373647A (en) 2014-11-29 2014-11-29 Lubricating oil low-pressure protecting device

Publications (1)

Publication Number Publication Date
CN104373647A true CN104373647A (en) 2015-02-25

Family

ID=52552729

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410702720.2A Pending CN104373647A (en) 2014-11-29 2014-11-29 Lubricating oil low-pressure protecting device

Country Status (1)

Country Link
CN (1) CN104373647A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE825175A (en) * 1974-02-05 1975-05-29 CHECK VALVE, FLUSH VALVE
CN86105193A (en) * 1985-08-14 1987-02-11 萨布尼弗有限公司 The valve that adds water to the electrochemical storage cell group
CN87210577U (en) * 1987-09-24 1988-08-03 季振业 Valve protecting fluid from losing pressure
US5190074A (en) * 1992-04-20 1993-03-02 Christopher Gilman O Check valve apparatus
CN2233494Y (en) * 1994-12-16 1996-08-21 陈佩华 Liquid flow constant pressure system
US6003539A (en) * 1998-01-20 1999-12-21 Nok Corporation Differential pressure regulating valve and liquid shut-off valve device
CN200949692Y (en) * 2006-07-03 2007-09-19 戴右铭 Self-forcing fluid pressure regulating valve
CN101078446A (en) * 2006-05-27 2007-11-28 范绍魁 Pressure safety valve
CN201297397Y (en) * 2008-10-23 2009-08-26 杭州水处理技术研究开发中心有限公司 Water pressure driving valve
CN101929572A (en) * 2010-09-14 2010-12-29 上海远安流体设备有限公司 Pneumatic constant pressure valve
CN203857104U (en) * 2013-09-10 2014-10-01 上海润水流体设备有限公司 Novel fluid hydraulic control valve
CN204239841U (en) * 2014-11-29 2015-04-01 中国船舶重工集团公司第七�三研究所 Lubricating oil low-voltage protective gear

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE825175A (en) * 1974-02-05 1975-05-29 CHECK VALVE, FLUSH VALVE
CN86105193A (en) * 1985-08-14 1987-02-11 萨布尼弗有限公司 The valve that adds water to the electrochemical storage cell group
CN87210577U (en) * 1987-09-24 1988-08-03 季振业 Valve protecting fluid from losing pressure
US5190074A (en) * 1992-04-20 1993-03-02 Christopher Gilman O Check valve apparatus
CN2233494Y (en) * 1994-12-16 1996-08-21 陈佩华 Liquid flow constant pressure system
US6003539A (en) * 1998-01-20 1999-12-21 Nok Corporation Differential pressure regulating valve and liquid shut-off valve device
CN101078446A (en) * 2006-05-27 2007-11-28 范绍魁 Pressure safety valve
CN200949692Y (en) * 2006-07-03 2007-09-19 戴右铭 Self-forcing fluid pressure regulating valve
CN201297397Y (en) * 2008-10-23 2009-08-26 杭州水处理技术研究开发中心有限公司 Water pressure driving valve
CN101929572A (en) * 2010-09-14 2010-12-29 上海远安流体设备有限公司 Pneumatic constant pressure valve
CN203857104U (en) * 2013-09-10 2014-10-01 上海润水流体设备有限公司 Novel fluid hydraulic control valve
CN204239841U (en) * 2014-11-29 2015-04-01 中国船舶重工集团公司第七�三研究所 Lubricating oil low-voltage protective gear

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Application publication date: 20150225