CN201155602Y - Petroleum storage tank explosion-proof fire retardant hydraulic safety valve - Google Patents
Petroleum storage tank explosion-proof fire retardant hydraulic safety valve Download PDFInfo
- Publication number
- CN201155602Y CN201155602Y CNU2008200170591U CN200820017059U CN201155602Y CN 201155602 Y CN201155602 Y CN 201155602Y CN U2008200170591 U CNU2008200170591 U CN U2008200170591U CN 200820017059 U CN200820017059 U CN 200820017059U CN 201155602 Y CN201155602 Y CN 201155602Y
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- tube
- oil sealing
- fire retarding
- sealing tube
- safety valve
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Abstract
The utility model provides an explosion proof and fire retarding hydraulic relief valve, pertaining to the fire retarding and venting safety fitting of a fixed roof oil tank, and is the further improvement of the structure of the hydraulic relief valve of the prior oil tank. A central spacing barrel arranged in the sealing lower opening of a top between a central tube and a sealing oil barrel is arranged in a suspended way on the inner wall of the sealing oil barrel through a height adjusting device; a liquid level observer is arranged on the outer wall of one side of the sealing oil barrel; an explosion proof and fire retarding device is arranged on the upper part of the sealing oil barrel; the structure of the explosion proof and fire retarding device is that a central corrugated plate type fire retarding layer and a fire retarding layer cage on both ends constitute one unit through a centre bolt; the explosion proof and fire retarding device is compressed by the core barrel of a protective hood on the top of the explosion proof and fire retarding device; a drain connection and a pipe plug are arranged on the bottom plate of the sealing oil barrel. The hydraulic relief valve has the advantages of simple structure, convenient observation of the liquid level, simple and controllable blow-down, explosion proof, fire retarding, good corrosion resistance, easy making, convenient installation and maintenance, burglarproof function of the protective hood and high security.
Description
Technical field:
The utility model relates to a kind of vertical fixedly apex stone oil tank ventilation safety installation, particularly relates to a kind of deadweight safety valve with anti-explosion fire-retardant function.
Background technique:
Should keep the petroleum storage tank internal and external pressure balance, reduce oil product evaporating loss again, also need stop extraneous flame to import storage tank into, be very important so inhalation valve is set on petroleum storage tank.At cold area, the valve disc of inhalation valve freezes easily or gets rusty.Therefore, on the oil tank deadweight safety valve must be housed simultaneously, be used, avoid petroleum storage tank being worked the mischief because of inhalation valve lost efficacy with inhalation valve.
Existing petroleum storage tank deadweight safety valve is generally iron, the center tube lower end of its cylinder type is provided with flange, the outside, center tube bottom is connected with the oil sealing tube end plate, blowdown connection and plug are housed on the oil sealing tube end plate, the oil sealing tube is welded on oil sealing tube end plate edge, in being provided with between center tube and the oil sealing tube every tube, in be welded to connect every tube and protective housing, in every the axially spaced-apart at tube depth of immersion and oil trap place, lean on oil sealing tube nut outside and bolt to regulate.When safety valve was big, protective housing oil trap section diameter was very big, add protective housing and in every tube, top removable component weight is very big, the adjusting every the tube depth of immersion in giving has brought inconvenience.Oil level gauge inserts from the top, makes the measurement of the inner liquid level of oil sealing tube inaccurate, not directly perceived.And the oil removal performance of safety valve oil trap and back-fire relief poor-performing.
Summary of the invention:
Technical problem to be solved in the utility model is on the basis of above-mentioned petroleum storage tank deadweight safety valve, a kind of deadweight safety valve with anti-explosion fire-retardant function is provided, be not connected with protective housing every tube in making, and increase liquid level visualizer, cancellation oil trap and oil level gauge increase its Security and operability.
The utility model is for solving the problems of the technologies described above, structure to existing petroleum storage tank deadweight safety valve has been done further improvement: with in the top seal lower openings every tube by height adjustment mechanism unsettled being installed on the oil sealing tube inwall, installing liquid level visualizer on the oil sealing tube one side outer wall, the anti-explosion fire-retardant device is installed on oil sealing tube top, the structure of anti-explosion fire-retardant device is that the flame retardant bed at the corrugated plate dst flame retardant bed at center and two ends protects frame and forms one by centre bolt, and the anti-explosion fire-retardant device is compressed by installing protective housing core tube above it.
The utility model is as a whole with anti-explosion fire-retardant device and deadweight safety valve design, adopt the working method of breathing behind the first back-fire relief, cancelled oil trap, the flame retardant bed of top anti-explosion fire-retardant device can stop external flame to enter, and can will carry secretly the air-flow of oil droplet carry out sufficient gas-liquid separation.Special pentagon nut needs dismantle with special socket wrench, can prevent effectively that parts such as protective housing are stolen, avoids the generation of security incident.
Description of drawings:
Fig. 1 is the structural representation according to petroleum storage tank anti-explosion fire-retardant deadweight safety valve provided by the utility model.
Fig. 2 be A among Fig. 1 to partial view, be used for showing the structure characteristic of special pentagon nut.
Fig. 3 be in every tube height adjustment mechanism schematic representation.
Fig. 4 is a liquid level visualizer structural representation.
Fig. 5 is a plug cross-sectional configuration schematic representation.
Fig. 6 is an anti-explosion fire-retardant apparatus structure schematic representation.
Embodiment:
Describe the concrete structure that petroleum storage tank anti-explosion fire-retardant deadweight safety valve is provided according to the utility model in detail below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 5, wherein 1 is adpting flange, the 2nd, and oil sealing tube end plate, the 3rd, short blowdown connection; the 4th, oil sealing, the 5th, the oil sealing tube, the 6th, in every the tube height adjustment mechanism; the 7th, protective housing contiguous block, the 8th, protective housing, the 9th, anti-explosion fire-retardant device; the 10th, protective housing core tube, the 11st, connecting bolt, the 12nd, locking block; the 13rd, special pentagon nut, the 14th, anti-explosion fire-retardant device fitting seat, the 15th, liquid level visualizer; the 16th, in every tube, the 17th, long blowdown connection, the 18th, pad; the 19th, plug, the 20th, center tube, 21 movable contiguous blocks; the 22nd, screw rod, the 23rd, fixedly connected, the 24th, stop nut; the 25th, packing ring, the 26th, outer plug screw, the 27th, connecting body; the 28th, protective tube, the 29th, protective tube observation panel, the 30th, high-strength glass pipe; the 31st, seal ring, the 32nd, interior plug screw, the 33rd, anti-explosion fire-retardant layer; the 34th, the anti-explosion fire-retardant layer protects frame, and the 35th, centre bolt, the 36th, set screw nut.
This embodiment's adpting flange 1 is loaded on the lower end of columnar center tube 20, the outside, center tube 20 bottoms is connected with oil sealing tube end plate 2, short blowdown connection 3 and long blowdown connection 17 are housed on the oil sealing tube end plate 2, oil sealing tube 5 is welded on the edge of oil sealing tube end plate 2, in being provided with between center tube 20 and the oil sealing tube 5 every tube 16, in be installed on oil sealing tube 5 inwalls by height adjustment mechanism 6 every tube 16, installing liquid level visualizer 15 on the oil sealing tube 5 one side outer walls, anti-explosion fire-retardant device 9 is installed on oil sealing tube 5 tops, anti-explosion fire-retardant device 9 tops installing protective housing 8.Protective housing 8 lower inner wall are fixed on special pentagon nut 13 on the locking block 12 of oil sealing tube 5 upper outside by the connecting bolt 11 of protective housing contiguous block 7 welding somes, and protective housing core tube 10 compresses anti-explosion fire-retardant device 9.Anti-explosion fire-retardant device 9 is installed in the anti-explosion fire-retardant device fitting seat 14 on oil sealing tube 5 tops, and anti-explosion fire-retardant device fitting seat 14 is welded to connect with oil sealing tube 5 inwalls.Oil sealing tube 5 bottoms contain the oil sealing 4 of appropriate depth, and oil sealing 4 should be non-volatile, uncongealable oil product.Short blowdown connection 3 is used for getting rid of the dirt that overweights oil sealing 4, long blowdown connection 17 is used for discharging the dirt lighter than oil sealing 4, the outer end of short blowdown connection 3 and long blowdown connection 17 seals with plug 19, plug 19 interior edge faces installing pad 18, the helical thread portion of plug 19 is offered dump tank, so that the situation down blow in incomplete shackle makes blowdown operation easy, control easily.In form by parts such as fixedly connected 23, screw rod 22, movable contiguous blocks 21 every tube height adjustment mechanism 6, be provided with tapped hole for fixedly connected 23, fixedly connected 23 edge and oil sealing tube 5 inwalls are fixed, in the tapped hole that screw rod 22 lower ends screw-in is fixedly connected 23, the upper end flexibly connects by stop nut 24 and packing ring 25 and movable contiguous block 21, movable contiguous block 21 with in fix every the outer wall of tube 16.Two connecting bodys 27 of liquid level visualizer 15 are welded on the two ends of protective tube 28; protective tube observation panel 29 is offered in protective tube 28 both sides over against the position; the interior plug screw 32 inner seal rings 31 of placing; screw in connecting body 27 tapped holes and compress high-strength glass pipe 30 from two ends; two connecting body 27 inner chambers are communicated with; connecting body 27 outer ends are coated with sealer with interior plug screw 32 threaded connection places with outer plug screw 26 sealings on outer plug screw 26 interior edge faces.The center of anti-explosion fire-retardant device 9 is a corrugated plate dst anti-explosion fire-retardant layer 33, anti-explosion fire-retardant layer 33 meets the regulation of standard GB5908, anti-explosion fire-retardant layer 33 two ends installing anti-explosion fire-retardant layer protects frame 34, and the anti-explosion fire-retardant layer protects frame 34 and clamps corrugated plate dst anti-explosion fire-retardant layer 33 by centre bolt 35 and set screw nut 36.
When tank inner pressure during less than the storage tank pressure outside, in in the annular space between tube 16 and center tube 20 liquid level rise, reach the negative pressure leak pressure, air is through anti-explosion fire-retardant device 9, every tube 16 lower ends, flow in the storage tanks in walking around with bubble form through center tube 20; When tank inner pressure during greater than the storage tank pressure outside, oil sealing tube 5 and in the annular space between tube 16 liquid level rise, when reaching the malleation relieving pressure, in the storage tank gas through center tube 2, walk around in behind tube 16 lower ends, discharge by anti-explosion fire-retardant device 9.
This valve adopts stainless steel, compares with existing deadweight safety valve, and more compact structure is reasonable, and liquid level is observed side directly perceived Just, blowdown is easy to be controlled, and is easy to manufacture, and installation and maintenance are convenient, and are in light weight, and have good back-fire relief explosion-proof performance and Etch resistant properties.
Claims (5)
1. petroleum storage tank anti-explosion fire-retardant deadweight safety valve, comprise center tube (20), in every tube (16), oil sealing tube (5), protective housing (8), blowdown connection (3,17), in the center tube lower end of cylinder type flange (1) is housed, center tube bottom outer wall and oil sealing tube end plate (2) are fixing, columnar oil sealing tube (5) lower end and oil sealing tube end plate (2) sealing, blowdown connection (3 is housed on the oil sealing tube end plate, 17) and plug (19), be provided with between center tube and the oil sealing tube top seal lower openings in every tube (16), in it is characterized in that every tube (16) by unsettled oil sealing tube (5) inwall that is installed on of height-adjusting device (6), installing liquid level visualizer (15) on oil sealing tube (5) the one side outer walls, anti-explosion fire-retardant device (9) is installed on oil sealing tube (5) top, the structure of anti-explosion fire-retardant device (9) is that the corrugated plate dst flame retardant bed (33) at center and the flame retardant bed at two ends protect frame (34) by centre bolt (35) composition one, and anti-explosion fire-retardant device (9) is compressed by installing protective housing core tube (10) above it.
2. deadweight safety valve as claimed in claim 1, form by fixedly connected (23), screw rod (22), movable contiguous block (21), stop nut (24) every tube height adjustment mechanism (6) in it is characterized in that, fixedly connected (23) are provided with tapped hole, fixedly connected with oil sealing tube (5) inwall in its edge, screw rod (22) lower end screws in the tapped hole of fixedly connected (23), the upper end flexibly connects with movable contiguous block (21), during movable contiguous block (21) is fixed on the outer wall of tube (16).
3. deadweight safety valve as claimed in claim 1 is characterized in that anti-explosion fire-retardant device (9) is installed in the fitting seat (14) that is arranged in oil sealing tube (5) top, and fitting seat (14) is fixed with oil sealing tube (5) inwall.
4. deadweight safety valve as claimed in claim 1; it is characterized in that liquid level visualizer (15) is by connecting body (27); protective tube (28); high-strength glass pipe (30); interior plug screw (32); outer plug screw (26); seal ring (31) is formed; two connecting bodys are welded on the two ends of protective tube; observation panel (29) is offered in protective tube (28) both sides over against the position; place seal ring (31) in the interior plug screw (32); glass tube (30) inserts in the interior plug screw (32); interior plug screw screws in the tapped hole of connecting body (27); glass tube (30) two ends compress corresponding seal ring (31) respectively, and outer plug screw (26) is equipped with in the connecting body outer end.
5. deadweight safety valve as claimed in claim 1 is characterized in that protective housing (8) is fixed on the locking block (12) on housing top with pentagon nut (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200170591U CN201155602Y (en) | 2008-01-25 | 2008-01-25 | Petroleum storage tank explosion-proof fire retardant hydraulic safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200170591U CN201155602Y (en) | 2008-01-25 | 2008-01-25 | Petroleum storage tank explosion-proof fire retardant hydraulic safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155602Y true CN201155602Y (en) | 2008-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200170591U Expired - Fee Related CN201155602Y (en) | 2008-01-25 | 2008-01-25 | Petroleum storage tank explosion-proof fire retardant hydraulic safety valve |
Country Status (1)
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| CN (1) | CN201155602Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635715A (en) * | 2012-04-24 | 2012-08-15 | 中国石油天然气股份有限公司 | Anti-freezing type hydraulic safety valve for petroleum storage tank |
| CN103538822A (en) * | 2012-07-10 | 2014-01-29 | 成都科盛石油科技有限公司 | Ventilation cap with fire retardance function |
| CN105236042A (en) * | 2015-08-27 | 2016-01-13 | 常州大学 | Inner floating roof anti-impact safety device for storage tank |
| CN107143689A (en) * | 2017-05-31 | 2017-09-08 | 辽宁石油化工大学 | A kind of safe breather valve of petroleum storage tank |
| CN107701767A (en) * | 2016-08-09 | 2018-02-16 | 中国石油天然气股份有限公司 | Hydraulic safety valve |
| CN112013143A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
-
2008
- 2008-01-25 CN CNU2008200170591U patent/CN201155602Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635715A (en) * | 2012-04-24 | 2012-08-15 | 中国石油天然气股份有限公司 | Anti-freezing type hydraulic safety valve for petroleum storage tank |
| CN103538822A (en) * | 2012-07-10 | 2014-01-29 | 成都科盛石油科技有限公司 | Ventilation cap with fire retardance function |
| CN105236042A (en) * | 2015-08-27 | 2016-01-13 | 常州大学 | Inner floating roof anti-impact safety device for storage tank |
| CN107701767A (en) * | 2016-08-09 | 2018-02-16 | 中国石油天然气股份有限公司 | Hydraulic safety valve |
| CN107143689A (en) * | 2017-05-31 | 2017-09-08 | 辽宁石油化工大学 | A kind of safe breather valve of petroleum storage tank |
| CN107143689B (en) * | 2017-05-31 | 2018-12-04 | 辽宁石油化工大学 | A kind of safe breather valve of petroleum storage tank |
| CN112013143A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
| CN112013143B (en) * | 2019-05-30 | 2022-05-24 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20140125 |