CN103075546A - Full-automatic left-side-opened pressure-retaining and unloading safety valve - Google Patents
Full-automatic left-side-opened pressure-retaining and unloading safety valve Download PDFInfo
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- CN103075546A CN103075546A CN2012105967924A CN201210596792A CN103075546A CN 103075546 A CN103075546 A CN 103075546A CN 2012105967924 A CN2012105967924 A CN 2012105967924A CN 201210596792 A CN201210596792 A CN 201210596792A CN 103075546 A CN103075546 A CN 103075546A
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Abstract
The invention discloses a full-automatic left-side-opened pressure-retaining and unloading safety valve, which is used for conveying gases and liquid media. A small water seal, a large water seal, a valve body and a long hinge lug are arranged in front of dual flanges; a valve is arranged in front of the small water seal; a short hinge lug is arranged above the valve; a back shaft pin and a front shaft pin are used for connecting a link rod with the long hinge lug and the short hinge lug; an oil path of the pressure-retaining and unloading valve is communicated with a valve body inner hole and dual flange inner holes; a pressure gauge is arranged on the valve body; the dual flanges are provided with bolt holes; and all bolt holes are moved rightwards by 5 degrees based on crossed central lines on dual flange surfaces. After installation, full sealing of the circumferential surface of the valve can be ensured; the dead-weight horizontal component of the valve can be taken as acting force, so that the aims of reducing the opening resistance of the valve and automatically closing a door are fulfilled; and when a pipeline for conveying the gases and liquid media is overload, automatic pressure-retaining and unloading are performed.
Description
Technical field
The invention discloses a kind of full-automatic left side opening pressurize off-load safety valve of carrying gas and liquid medium.
Background technique
Make a general survey of the non-return equipment of domestic and international conveying gas and liquid medium and the water supply pump house of water utility and tall building, what generally use is electric gate valve, hydraulic butterfly valve or Swing check valve, all there is complex structure in these valves, make the defectives such as difficulty and energy loss are large, up to the present, also not yet see on the market a kind of simple in structure, sealing is tight, stable, not manual operation, can save the full-automatic left side opening pressurize off-load safety valve of a large amount of manpower and materials and electric power energy.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, seal tight, stable, not manual operation, can either save a large amount of manpower and materials and electric power energy, again can be when carrying the pipeline overburdening of gas and liquid medium, the full-automatic left side opening pressurize off-load safety valve of automatic pressure-maintaining off-load.
Technological scheme of the present invention:
A kind of full-automatic left side opening pressurize off-load safety valve, comprise two flanges, little water seal, large water seal, valve body, the band andgudgeon ear, rear pivot pin, front pivot pin, link rod, valve, short hinge ear, the pressurize unloading valve, pressure gauge and bolt hole etc., wherein: be provided with little water seal in two flanges front, large water seal, valve body and band andgudgeon ear, be provided with valve in little water seal front, on valve, be provided with short hinge ear, rear pivot pin and front pivot pin connect link rod and band andgudgeon ear and short hinge ear, the oil circuit of pressurize unloading valve communicates with valve body inner bore and two flange endoporus, pressure gauge is installed on the valve body, be provided with bolt hole at two flanges, the cross centre line of bolt hole on two flanged surfaces is as benchmark, all to 5 ° of left dislocations, like this, the present invention can either guarantee that the valve circumferential surface seals fully after installing, can utilize again the deadweight horizontal component of valve to be used as power, reach the unlatching resistance that reduces valve and the purpose of automatic door-closing, can also be when carrying the pipeline overburdening of gas and liquid medium, the automatic pressure-maintaining off-load.
Key technology of the present invention is: be provided with link rod between band andgudgeon ear and short hinge ear, between valve body and two flange, be provided with the pressurize unloading valve, at the cross centre line of the bolt hole on two flanges on two flanged surfaces as benchmark, all to 5 ° of left dislocations, like this, after the present invention installs, can either guarantee that the valve circumferential surface seals fully, can utilize again the deadweight horizontal component of valve to be used as power, reach the unlatching resistance that reduces valve and the purpose of automatic door-closing, can also be when carrying the pipeline overburdening of gas and liquid medium, the automatic pressure-maintaining off-load.
Description of drawings
Fig. 1 is schematic diagram of the present invention
Fig. 2 is plan view of the present invention
Specific embodiments
As shown in the figure, a kind of full-automatic left side opening pressurize off-load safety valve, comprise two flanges 1, little water seal 2, large water seal 3, valve body 4, band andgudgeon ear 5, rear pivot pin 6, front pivot pin 7, link rod 8, valve 9, short hinge ear 10, pressurize unloading valve 11, pressure gauge 12, bolt hole 13 etc., wherein: be provided with little water seal 2 in two flanges 1 front, large water seal 3, valve body 4 and band andgudgeon ear 5, be provided with valve 9 in little water seal 2 fronts, on valve 9, be provided with short hinge ear 10, rear pivot pin 6 and front pivot pin 7 connect link rod 8 and band andgudgeon ear 5 and short hinge ear 10, the oil circuit of pressurize unloading valve 11 communicates with valve body 4 endoporus and two flange 1 endoporus, pressure gauge 12 is installed on the valve body 4, be provided with bolt hole 13 at two flanges 1, the cross centre line of bolt hole 13 on 1 of two flange is as benchmark, all to 5 ° of left dislocations, like this, after the present invention installs, can either guarantee that the valve circumferential surface seals fully, can utilize again the deadweight horizontal component of valve 9 to be used as power, reach the unlatching resistance that reduces valve 9 and the purpose of automatic door-closing, can also be when carrying the pipeline overburdening of gas and liquid medium, the automatic pressure-maintaining off-load.
Key technology of the present invention is: be provided with link rod 8 between band andgudgeon ear 5 and short hinge ear 10, between valve body 4 and two flange 1, be provided with pressurize unloading valve 11, at the cross centre line of the bolt hole 13 on two flanges 1 on 1 of two flange as benchmark, all to 5 ° of left dislocations, like this, after the present invention installs, can either guarantee that the valve circumferential surface seals fully, can utilize again the deadweight horizontal component of valve 9 to be used as power, reach the unlatching resistance that reduces valve 9 and the purpose of automatic door-closing, can also be when carrying the pipeline overburdening of gas and liquid medium, the automatic pressure-maintaining off-load.
Claims (2)
1. full-automatic left side opening pressurize off-load safety valve, comprise two flanges (1), little water seal (2), large water seal (3), valve body (4), band andgudgeon ear (5), rear pivot pin (6), front pivot pin (7), link rod (8), valve (9), short hinge ear (10), pressurize unloading valve (11), pressure gauge (12), bolt hole (13) etc., it is characterized in that: be provided with little water seal (2) in two flanges (1) front, large water seal (3), valve body (4) and band andgudgeon ear (5), be provided with valve (9) in little water seal (2) front, on valve (9), be provided with short hinge ear (10), rear pivot pin (6) and front pivot pin (7) connect link rod (8) and band andgudgeon ear (5) and short hinge ear (10), the oil circuit of pressurize unloading valve (11) communicates with valve body (4) endoporus and two flange (1) endoporus, pressure gauge (12) is installed on the valve body (4), is provided with bolt hole (13) at two flanges (1);
2. full-automatic left side opening pressurize off-load safety valve according to claim 1 is characterized in that: the cross centre line of the bolt hole (13) on two flanges (1) on two flanges (1) face is as benchmark, all to 5 ° of left dislocations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105967924A CN103075546A (en) | 2012-12-30 | 2012-12-30 | Full-automatic left-side-opened pressure-retaining and unloading safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105967924A CN103075546A (en) | 2012-12-30 | 2012-12-30 | Full-automatic left-side-opened pressure-retaining and unloading safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103075546A true CN103075546A (en) | 2013-05-01 |
Family
ID=48152184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105967924A Pending CN103075546A (en) | 2012-12-30 | 2012-12-30 | Full-automatic left-side-opened pressure-retaining and unloading safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103075546A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1427866A (en) * | 1973-03-23 | 1976-03-10 | Nuovo Pignone Spa | Check valve |
| DE2946992A1 (en) * | 1978-12-07 | 1980-06-19 | Sigma Koncern | Check valve for forced circulation pipe systems - with disc leaving specified passage area open in neutral position |
| CN85204412U (en) * | 1985-10-18 | 1986-07-30 | 太原工业大学 | Non-return valve with no water hammer |
| RU2032845C1 (en) * | 1989-12-27 | 1995-04-10 | Луганский Машиностроительный Институт | Check valve |
| CN201412568Y (en) * | 2009-03-11 | 2010-02-24 | 张坚 | Left side open type self-closing check valve |
| CN201909073U (en) * | 2011-01-22 | 2011-07-27 | 江苏鼎泽环境工程有限公司 | Roots blower safety valve |
| CN202082441U (en) * | 2011-06-01 | 2011-12-21 | 鞍山市通顺阀门制造有限公司 | Vertical abrasion-resistant rubber lining check valve |
| CN202209455U (en) * | 2011-09-23 | 2012-05-02 | 福建福思特阀门集团有限公司 | Safe power-driven pressure releasing and holding valve |
-
2012
- 2012-12-30 CN CN2012105967924A patent/CN103075546A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1427866A (en) * | 1973-03-23 | 1976-03-10 | Nuovo Pignone Spa | Check valve |
| DE2946992A1 (en) * | 1978-12-07 | 1980-06-19 | Sigma Koncern | Check valve for forced circulation pipe systems - with disc leaving specified passage area open in neutral position |
| CN85204412U (en) * | 1985-10-18 | 1986-07-30 | 太原工业大学 | Non-return valve with no water hammer |
| RU2032845C1 (en) * | 1989-12-27 | 1995-04-10 | Луганский Машиностроительный Институт | Check valve |
| CN201412568Y (en) * | 2009-03-11 | 2010-02-24 | 张坚 | Left side open type self-closing check valve |
| CN201909073U (en) * | 2011-01-22 | 2011-07-27 | 江苏鼎泽环境工程有限公司 | Roots blower safety valve |
| CN202082441U (en) * | 2011-06-01 | 2011-12-21 | 鞍山市通顺阀门制造有限公司 | Vertical abrasion-resistant rubber lining check valve |
| CN202209455U (en) * | 2011-09-23 | 2012-05-02 | 福建福思特阀门集团有限公司 | Safe power-driven pressure releasing and holding valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Jian Document name: Notification of Acceptance of Patent Application |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130501 |