CN203395229U - Built-in safety stop valve device of oil storage pipeline - Google Patents
Built-in safety stop valve device of oil storage pipeline Download PDFInfo
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- CN203395229U CN203395229U CN201320291472.8U CN201320291472U CN203395229U CN 203395229 U CN203395229 U CN 203395229U CN 201320291472 U CN201320291472 U CN 201320291472U CN 203395229 U CN203395229 U CN 203395229U
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Abstract
Provided is a built-in safety stop valve device of an oil storage pipeline. The built-in safety stop valve device comprises a stop device and a pressure releasing device; the stop device is formed by a plunger piston, a steel column, a controller, a spring 1, a spring compression device and a stop valve pipe wall; the plunger piston is arranged in the inner part of the stop valve pipe wall so that a stop valve main body is formed; and the pressure releasing device is arranged in the inner part of plunger piston and is formed by a pressure releasing pipe, a steel wire, a spring 2 and a piston. According to the utility model, the spring 1 is used as a drive of the plunger piston, without an external drive source such as a motor or an energy accumulator being needed; during normal use, the stop device is in an on-state; and when disasters occur, potential energy of the springs can be released via the controller and the plunger piston is pushed forward to cut off the pipeline. The built-in safety stop valve device is advantageous in that firstly the built-in safety stop valve device is a pure mechanic structure which is simple in structure and safe and reliable in use; secondly the built-in safety stop valve device is capable of autonomously achieving a cut off function without the external drive; and thirdly when a fire breaks out, the built-in safety stop valve device can be used as the last protective screen for a tank body when other automatic safety devices are invalid, so destructive power of the disaster is reduced.
Description
Technical field the utility model relates to a kind of safety installations, especially a kind of oil storage path built-in formula safety shutoff valve device.
Background technique is well-known, and oil storage tank is the visual plant of oil depot, is storing a large amount of easy firings, explosive, the easy oil product running off.Along with development and top, the national crude oil strategic reserves storehouse object of China's oil chemical engineering industry are implemented, the maximization of oil tank is the inexorable trend for developing in recent years.And petroleum tank region stores various oil and products thereof conventionally, various fire perils are also deposited, and tend to form flame range in a big way once on fire from explosion, and the intensity of a fire is extremely violent, the difficulty of putting out a fire to save life and property.In recent years, oil storage tank Frequent Accidents, the fire explosion of oil tank is very harmful, and not only serious threat people's life safety is returned country and enterprise and is brought heavy economic losses.For example:
Wax oil tank breaks refinery stock tank farm, woods source, Daqing in 1986 due to No. 21, and high temperature oil product releases in a large number, causes fire.
No. 5 tanks of in August, 1989 Huang Island oil depot, because thunderbolt is on fire from explosion, cause 1,2,3, No. 4 tank in succession to explode.On October 21st, 1993, No. 310, Nanjing Refinery tank farm ton light oil tank knocking fuel.
September 4 in 1994, the military region, ， Jinan 9731 oil refinerys were too fast owing to pumping, and produced static and caused fire disaster.September 1 calendar year 2001, ， Shenyang large dragon dollar Oil Co., Ltd fell in oily process, and in oil tank, gasoline is excessive, and a large amount of volatilization gas flow in the garage outside 160m, causes that fuel tank explosion is on fire.
In November, 2005 Shuan Ben factory of Jilin Petrochemical company of the 13， CNPC fire of blasting.
About 18 o'clock night on the 16th of July in 2010, near oil transport pipeline blast on fire of PetroChina Company Limited. Talien New Port.Through more than 2000 firefighterses, struggle, by the morning on the 17th, the intensity of a fire was put out substantially all night.Accident causes no casualties, but affects 100 square kilometres of marine sites, 10 square kilometres, heavily contaminated marine site.
Above storage tank blast thing fire cause is different separately, identical is all on fire, after blast, the time of fire sustained combustion is long, the pollution causing and injure huge, if the very first time that can occur in accident accomplishes to isolate point of origin, shutoff combustible substance, can reduce secondary explosion undoubtedly to a great extent, avoids bringing disaster to other storage tank.But because tank field explosive effect on fire is huge, the safety installation in destructive Qiang， irrigated area are easy to run out of steam in blast, and such as mortor operated valve loses power supply, electro hydraulic valve loses pressure, automatic bubble failure of apparatus etc.
Take 7.16 accidents as example, and accident causes storage tank valve to close in time, and fire constantly expands.Crude oil trickles along underground pipe canal, forms ground trickling fire, fire spreading.Accident causes No. 103 main oil transport pipelines of tank and periphery pump house Ji Gang district badly damaged, and part crude oil flows into surrounding waters.Accident also causes electric power system to damage, and emergent and fire fighting device lost efficacy, and tank field valve cannot be closed.In morning July 17, big fire occurs for another 700 millimeters of pipelines that blast causes.DN900 gate valve in fire extinguishing procedure, gear drive, manual-lock needs 4-5 people, rotates 8000 and turns, and approximately 100 minutes consuming time, and also valve body itself is hot, and originally impossible by the artificial valve base that directly closes, can only be first with implementing after water cooling.
And not yet have a kind of more advanced, ripe, stable equipment at present, reduce the generation of disaster.
Summary of the invention the utility model, for the deficiencies in the prior art, provides in a kind of situation without extra power, can independently block the oil storage path built-in formula safety shutoff valve device of tank inside pipeline.
The utility model comprises stopper and pressure relief device, and stopper consists of plunger, steel column, controller, spring one, spring compression means and stop valve tube wall; Plunger is arranged on the inside of stop valve tube wall, is configured to stop valve main body; One end of plunger is connected with steel column, and the other end of steel column is connected with spring one, and spring one is arranged in spring compression means, and by controller, comes compression and the release of control spring; Inside at plunger is provided with pressure relief device, pressure relief device consists of relief tube, steel wire, spring two and piston, the pipeline of relief tube is L-type 90 degree break-ins, the motion caliber of piston is greater than pressure release caliber, one end of piston is connected with spring two, the other end of spring two is connected with steel wire, and steel wire is positioned at the inside of steel column, and steel wire is connected with controller; Plunger is positioned near oil inlet and outlet one; The control system of controller mainly comprises that checking-valve body is controlled and Decompression valves is controlled; By control chip, control knob, steel column drive unit and steel wire drive unit, formed; It is by steel column drive unit, to control steel column to move that checking-valve body is controlled.
Adopt after said structure, this device adopts spring one as the driving of plunger, without external drive source (motor, accumulator etc.).When normal use, spring one is in compressive state, and stopper is in opening state.When there is disaster, by controller, spring potential energy is discharged, promote plunger advancement, until pipeline is blocked, the support force that simultaneously keeps plunger interface, prevents that oil body from revealing because of pressure surge, piston spring one and the acting in conjunction of liquid in pipe pressure, to make to block action can complete fast, the shut-in time of artificial hundreds of easily minute when greatly having shortened fire and occurring.
The utility model has the advantages that:
1, this device is pure mechanical structure, simple in structure, safe and reliable, and course of action is simple, and stability is more reliable.
2, without external drive (electric energy, hydraulic pressure, air pressure etc.), the independently cutting function of implement device.
3, block the pipeline gateway time short, closing process only needs the several seconds.
4, control safety, away from point of ignition, make to close valve operation safety more flexibly.
5, sealability is unique, and without leaking, piston has the economic benefits and social benefits function of metal and nonmetal multi-layer sealing structure composition.
6, integral type valve seat (cylinder sleeve) radial taper sealing surface is highly high, area of contact is large, performance good.
7, when fire occurs, under other automatic safety device failure conditions, can be used as the last barrier of tank body protection, reduce the generation of tank field disaster, reduce the collapsing force of disaster.
Description of drawings 1 is the plan view of the utility model stopper opening state.
Fig. 2 is the plan view of the utility model stopper closed condition.
Fig. 3 is the sectional drawing of the utility model pressure relief device closed condition.
Fig. 4 is the sectional drawing of the utility model pressure relief device opening state.
Fig. 5 is the workflow diagram of the utility model controller internal control system.
Description of reference numerals:
1 plunger, 2 steel columns, 3 controllers, 4-1 spring one, 4-2 spring two, 5 spring compression means, 6 stop valve tube walls, 7 relief tubes, 8 steel wires, 9 pistons, 10 oil tanks, 11 steel column supports, 12-1 oil inlet and outlet one, 12-2 oil inlet and outlet two, 13-1 pressure release hydraulic fluid port one, 13-2 pressure release hydraulic fluid port two.
A kind of oil storage path built-in of embodiment formula safety shutoff valve device, comprises stopper and pressure relief device, and stopper consists of plunger 1, steel column 2, controller 3, spring one 4-1, spring compression means 5 and stop valve tube wall 6; Plunger is arranged on the inside of stop valve tube wall, is configured to stop valve main body; One end of plunger is connected with steel column, and the other end of steel column is connected with spring one, and spring one is arranged in spring compression means, and by controller, comes compression and the release of control spring.
As shown in Figure 1, stop valve installation is arranged on the inside of oil tank 10, and plunger is positioned near oil inlet and outlet one; Generally, stop valve installation is in opening state; When urgency occurs, in the time that oil circuit need to being cut off, open controller, the elastic potential energy of retracting spring, steel column can be supported 11 along steel column by spring one extruding and move, thereby drives plunger to do horizontal progressive motion along stop valve tube wall, make it block filler opening one 12-1, reach the effect of cut-off oil circuit; When needs are opened stop valve, while keeping oil circuit unimpeded, as shown in Figure 2, adjustable controller is mobile steel column backward, makes plunger be moved back into the position shown in Fig. 2, and fluid can flow by oil inlet and outlet one 12-1 and oil inlet and outlet two 12-2.
As shown in Figure 3, because tank bottom pressure is huge, there is very large pressure reduction in plunger two ends in stop valve, in order to prevent that stop valve from opening difficulty, specially in the inside of plunger, is provided with pressure relief device.Pressure relief device consists of relief tube 7, steel wire 8, spring two 4-2 and piston 9, and the pipeline of relief tube is L-type 90 degree break-ins, and at the two ends of relief tube, is provided with pressure release hydraulic fluid port one 13-1 and pressure release hydraulic fluid port two 13-2; The motion caliber of piston is greater than pressure release caliber, both can reduce the resistance to motion of piston, also can prevent pressure relief pipe leakage of oil; One end of piston is connected with spring two, and the other end of spring two is connected with steel wire, and steel wire is positioned at the inside of steel column, and steel wire is connected with controller.Because piston and spring two are arranged on plunger inside, the pretightening force of spring makes piston in piston movement pipeline left side, blocking-up fluid turnover pressure release hydraulic fluid port.In the time will opening stop valve mobile plunger, the piston of first mobile plunger inside, by moving to piston Tu4 position, make the two ends of relief tube form path, fluid can be from the large effluent of pressure to the little side of pressure, and the pressure difference at final balance two ends, can open plunger smoothly.
As shown in Figure 5, the control system of controller mainly comprises that checking-valve body is controlled and Decompression valves is controlled; By control chip, control knob, steel column drive unit and steel wire drive unit, formed; It is by steel column drive unit, to control steel column to move that checking-valve body is controlled, and drives the plunger in stop valve tube wall to move, and realizes the switch of stop valve; It is by steel wire drive unit, to control the steel wire of steel column inside that Decompression valves is controlled, and drives the piston in plunger to move, and realizes the switch of Decompression valves.
Under off working state, stop valve is in opening state, and Decompression valves is in closed condition.When generation urgency need to be closed stop valve, open stop valve controller, do not needing other exterior powers to order about in situation, plunger moves because spring discharges elastic potential energy, closes stop valve.When needs are opened stop valve, first open the steel wire drive unit of controller, make the oil pressure balance at plunger two ends, then open the steel column drive unit of controller, mobile steel column, Compress Spring, opens stop valve.
Claims (5)
1. an oil storage path built-in formula safety shutoff valve device, comprises stopper and pressure relief device, it is characterized in that: stopper consists of plunger, steel column, controller, spring one, spring compression means and stop valve tube wall; Plunger is arranged on the inside of stop valve tube wall, is configured to stop valve main body; One end of plunger is connected with steel column, and the other end of steel column is connected with spring one, and spring one is arranged in spring compression means, and by controller, comes compression and the release of control spring; Inside at plunger is provided with pressure relief device, pressure relief device consists of relief tube, steel wire, spring two and piston, the pipeline of relief tube is L-type 90 degree break-ins, the motion caliber of piston is greater than pressure release caliber, one end of piston is connected with spring two, the other end of spring two is connected with steel wire, and steel wire is positioned at the inside of steel column, and steel wire is connected with controller.
2. a kind of oil storage path built-in formula safety shutoff valve device according to claim 1, is characterized in that: plunger is positioned near oil inlet and outlet one.
3. a kind of oil storage path built-in formula safety shutoff valve device according to claim 1, is characterized in that: the control system of described controller mainly comprises that checking-valve body is controlled and Decompression valves is controlled; By control chip, control knob, steel column drive unit and steel wire drive unit, formed.
4. a kind of oil storage path built-in formula safety shutoff valve device according to claim 3, is characterized in that: it is by steel column drive unit, to control steel column to move that described checking-valve body is controlled.
5. a kind of oil storage path built-in formula safety shutoff valve device according to claim 3, is characterized in that: it is by steel wire drive unit, to control steel wire to drive piston to move that described Decompression valves is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291472.8U CN203395229U (en) | 2013-05-27 | 2013-05-27 | Built-in safety stop valve device of oil storage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320291472.8U CN203395229U (en) | 2013-05-27 | 2013-05-27 | Built-in safety stop valve device of oil storage pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN203395229U true CN203395229U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320291472.8U Expired - Fee Related CN203395229U (en) | 2013-05-27 | 2013-05-27 | Built-in safety stop valve device of oil storage pipeline |
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| CN (1) | CN203395229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453169A (en) * | 2013-05-27 | 2013-12-18 | 大连博锐特科技工程有限公司 | Internal safety stop valve device for oil storage pipeline |
| CN108679290A (en) * | 2018-07-07 | 2018-10-19 | 辽东学院 | A kind of Water driving valve door controller |
-
2013
- 2013-05-27 CN CN201320291472.8U patent/CN203395229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453169A (en) * | 2013-05-27 | 2013-12-18 | 大连博锐特科技工程有限公司 | Internal safety stop valve device for oil storage pipeline |
| CN108679290A (en) * | 2018-07-07 | 2018-10-19 | 辽东学院 | A kind of Water driving valve door controller |
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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: 20140115 Termination date: 20140527 |