CN203147286U - Protection control device for nitrogen type surge relief valve - Google Patents
Protection control device for nitrogen type surge relief valve Download PDFInfo
- Publication number
- CN203147286U CN203147286U CN 201320036147 CN201320036147U CN203147286U CN 203147286 U CN203147286 U CN 203147286U CN 201320036147 CN201320036147 CN 201320036147 CN 201320036147 U CN201320036147 U CN 201320036147U CN 203147286 U CN203147286 U CN 203147286U
- Authority
- CN
- China
- Prior art keywords
- valve
- nitrogen
- pipeline
- water attack
- formula water
- 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.)
- Expired - Lifetime
Links
Abstract
The utility model relates to a nitrogen type surge relief valve for a long conveying pipeline, particularly relates to a protection control device of a nitrogen type surge relief valve and belongs to the technical field of instrument control devices. The protection device comprises a pressure switch arranged on a front pipeline of the nitrogen type surge relief valve, a three-way electromagnetic valve is arranged on a connection pipeline of the nitrogen type surge relief valve and a nitrogen gas source, and an electromagnetic valve is arranged on a pipeline of the nitrogen type surge relief valve and a nitrogen buffer tank.
Description
Technical field
The utility model relates to a kind of nitrogen formula water attack bleeder valve of long distance pipeline, is specifically related to a kind of protection control gear of nitrogen formula water attack bleeder valve, is applicable to the nitrogen control system of nitrogen formula water attack bleeder valve, belongs to instrument control apparatus technical field.
Background technique
Oil transport pipeline both domestic and external is for production safety, all is provided with the water attack bleeder valve at the pipeline that enters the station, sets off of oil transportation station, prevents that surge wave from causing damage to pipeline, oil-conveying device.The water attack bleeder valve that adopts mainly contains two kinds at present: leading type water attack bleeder valve and nitrogen formula water attack bleeder valve.From using effect, nitrogen formula water attack bleeder valve also has deficiency: for the bigger surge pressure wave of ascensional range, can be opened to larger opening, the amount of releasing is bigger, can reduce manifold pressure; For ascensional range slower surge pressure wave, very big even pressure surpasses setting value, the valve open aperture is also less, the amount of releasing is less, manifold pressure can not be reduced to safety value.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art part, a kind of protection control gear of nitrogen formula water attack bleeder valve being provided.This device is included in 1 pressure switch is installed on the nitrogen formula water attack bleeder valve valve preceding pipeline, its pressure set points is a little more than the action setting value of bleeder valve, bleeder valve high pressure nitrogen pipeline is transformed, at the pipeline that connects nitrogen source of the gas and bleeder valve main valve valve pocket 1 three-way magnetic valve is installed, main road is the connecting pipeline of nitrogen source of the gas and bleeder valve main valve valve pocket, and bypass is nitrogen emptying pipeline.The connecting pipeline of three-way magnetic valve conducting nitrogen source of the gas and bleeder valve main valve valve pocket is closed nitrogen emptying pipeline under the normal condition.Connecting 1 solenoid valve of bleeder valve valve pocket and nitrogen buffer tank pipeline installation.The connecting pipeline of three-way magnetic valve conducting nitrogen source of the gas and bleeder valve main valve valve pocket is closed nitrogen emptying pipeline, solenoid valve conduction bleeder valve valve pocket and nitrogen buffer tank under the normal condition.Pressure medium reaches the setting value of releasing before nitrogen formula water attack bleeder valve valve, valve open, if surge pressure continues to rise, reach the pressure switch working value, pressure switch interlocking action three-way magnetic valve is closed the connecting pipeline of nitrogen source of the gas and bleeder valve main valve valve pocket, the emptying bypass of conducting three-way magnetic valve, the release nitrogen pressure of bleeder valve main valve valve pocket, interlocking close solenoid valve simultaneously cuts off being connected of bleeder valve valve pocket and nitrogen buffer tank.The bleeder valve spool under the pressure medium promotion, is all opened before valve, and surge pressure releases fast.Drop to the pressure switch setting value when following at surge pressure, pressure switch interlocking action three-way magnetic valve is closed the emptying bypass of three-way magnetic valve, opens the connecting pipeline of nitrogen source of the gas and bleeder valve main valve valve pocket, open solenoid valve simultaneously, conducting bleeder valve valve pocket is connected with nitrogen buffer tank.Nitrogen pipeline returns to normal state, and bleeder valve is closed.
The utility model is realized with following technological scheme: a kind of protection control gear of nitrogen formula water attack bleeder valve is characterized in that: described protective gear is included on the nitrogen formula water attack bleeder valve preceding pipeline and is equipped with pressure switch; Be equipped with three-way magnetic valve on described nitrogen formula water attack bleeder valve and the nitrogen source of the gas connecting pipeline; Be equipped with solenoid valve on described nitrogen formula water attack bleeder valve and the nitrogen buffer tank pipeline.
Described three-way magnetic valve, main road are the connecting pipeline of nitrogen source of the gas and nitrogen formula water attack bleeder valve main valve valve pocket, and bypass is nitrogen emptying pipeline.
Described three-way magnetic valve adopts the 24VDC power supply, and the switch that the passive contact signal of pressure switch directly triggers three-way magnetic valve switches.
The utility model has the advantages that: this protection control gear has solved nitrogen formula water attack bleeder valve for the effective difficult problem of relieving pressure of the slower surge pressure wave of ascensional range; improved nitrogen formula water attack bleeder valve relieving capacity; protection pipeline delivery safety prevents pipeline superpressure damage oil transportation facility or pipeline booster.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail:
Fig. 1 is the utility model structural representation;
Among the figure: 1, water attack bleeder valve, 2, nitrogen pot, 3, nitrogen buffer tank, 4, three-way magnetic valve, 5, solenoid valve, 6, pressure switch.
Embodiment
As shown in the figure: a kind of protection control gear of nitrogen formula water attack bleeder valve, described protective gear are included on nitrogen formula water attack bleeder valve 1 preceding pipeline and are equipped with pressure switch 6; Be equipped with three-way magnetic valve 4 on described nitrogen formula water attack bleeder valve and the nitrogen source of the gas connecting pipeline; Be equipped with solenoid valve 5 on described nitrogen formula water attack bleeder valve and nitrogen buffer tank 3 pipelines.
Described three-way magnetic valve, main road are the connecting pipeline of nitrogen source of the gas and nitrogen formula water attack bleeder valve main valve valve pocket, and bypass is nitrogen emptying pipeline.
Described three-way magnetic valve adopts the 24VDC power supply, and the switch that the passive contact signal of pressure switch directly triggers three-way magnetic valve switches.
Working procedure: perforate setting pressure switch is got source block on bleeder valve valve preceding pipeline, the setting pressure switch; Disconnect the nitrogen source of the gas and introduce the pipeline of bleeder valve main valve valve pocket, three-way magnetic valve is installed in the centre, the three-way magnetic valve bypass connects blow-down pipe; Disconnect the pipeline that bleeder valve main valve valve pocket connects knock out drum, solenoid valve is installed in the centre; Three-way magnetic valve and solenoid valve connect the 24VDC power supply, and the output of the contact of pressure switch connects the control input of three-way magnetic valve and solenoid valve, can finish after finishing wiring.Pressure medium reaches the setting value of releasing before nitrogen formula water attack bleeder valve valve, valve open, if surge pressure continues to rise, reach the pressure switch working value, pressure switch interlocking action three-way magnetic valve and solenoid valve are closed the connecting pipeline of nitrogen source of the gas and bleeder valve main valve valve pocket, the emptying bypass of conducting three-way magnetic valve, the release nitrogen pressure of bleeder valve main valve valve pocket is closed the pipeline that bleeder valve main valve valve pocket connects knock out drum simultaneously.The Decompression valves spool under the pressure medium promotion, is all opened before valve, and surge pressure releases fast.Drop to the pressure switch setting value when following at surge pressure, pressure switch interlocking action three-way magnetic valve and solenoid valve, close the emptying bypass of three-way magnetic valve, open the connecting pipeline of nitrogen source of the gas and bleeder valve main valve valve pocket, open the pipeline that bleeder valve main valve valve pocket connects knock out drum simultaneously.Nitrogen pipeline returns to normal state, and bleeder valve is closed.
Claims (3)
1. a kind of protection control gear of nitrogen formula water attack bleeder valve, it is characterized in that: described protective gear is included on nitrogen formula water attack bleeder valve (1) preceding pipeline and is equipped with pressure switch (6); Be equipped with three-way magnetic valve (4) on described nitrogen formula water attack bleeder valve and the nitrogen source of the gas connecting pipeline; Be equipped with solenoid valve (5) on described nitrogen formula water attack bleeder valve and nitrogen buffer tank (3) pipeline.
2. the protection control gear of nitrogen formula water attack bleeder valve according to claim 1, it is characterized in that: described three-way magnetic valve, main road are the connecting pipeline of nitrogen source of the gas and nitrogen formula water attack bleeder valve main valve valve pocket, and bypass is nitrogen emptying pipeline.
3. the protection control gear of nitrogen formula water attack bleeder valve according to claim 1 is characterized in that: described three-way magnetic valve adopts the 24VDC power supply, and the switch that the passive contact signal of pressure switch directly triggers three-way magnetic valve switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036147 CN203147286U (en) | 2013-01-23 | 2013-01-23 | Protection control device for nitrogen type surge relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036147 CN203147286U (en) | 2013-01-23 | 2013-01-23 | Protection control device for nitrogen type surge relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147286U true CN203147286U (en) | 2013-08-21 |
Family
ID=48974809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036147 Expired - Lifetime CN203147286U (en) | 2013-01-23 | 2013-01-23 | Protection control device for nitrogen type surge relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203147286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439492A (en) * | 2015-08-10 | 2017-02-22 | 北京航天石化技术装备工程有限公司 | Nitrogen type water-attack pressure release valve system |
| CN106813103A (en) * | 2017-01-22 | 2017-06-09 | 中国海洋石油总公司 | A kind of process and device for preventing water attack for LNG pipelines |
-
2013
- 2013-01-23 CN CN 201320036147 patent/CN203147286U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439492A (en) * | 2015-08-10 | 2017-02-22 | 北京航天石化技术装备工程有限公司 | Nitrogen type water-attack pressure release valve system |
| CN106813103A (en) * | 2017-01-22 | 2017-06-09 | 中国海洋石油总公司 | A kind of process and device for preventing water attack for LNG pipelines |
| CN106813103B (en) * | 2017-01-22 | 2018-08-24 | 中国海洋石油集团有限公司 | A kind of process and device preventing water attack for LNG pipelines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203147286U (en) | Protection control device for nitrogen type surge relief valve | |
| CN109611588A (en) | A kind of double-direction relief valve | |
| CN102454185A (en) | Automatic air supply device for air pressure water supply tank | |
| CN201628078U (en) | Pipeline liquefied gas decompression device | |
| CN205260458U (en) | Ship unloaders hydraulic control system | |
| CN203639480U (en) | Blast furnace blast system | |
| CN103982694A (en) | Automatic switching-on/off device for fireproof pneumatic brake | |
| CN203925609U (en) | A kind of steam inlet device of small turbine | |
| CN203746614U (en) | Pressure relief device of transformer | |
| CN105485522A (en) | Pneumoelectric-linked emergency switching-off control device of liquefied petroleum gas storage tank | |
| CN203090914U (en) | Production device with nitrogen gas protection device | |
| CN204140548U (en) | A kind of novel hydraulic Emergeny Cutoff Valves | |
| CN202132702U (en) | Thermal recovery pressure reduction device | |
| CN204493163U (en) | There is the inventory control system of pump valve linkage function | |
| CN204692671U (en) | Industrial refrigeration right-angle type safety check | |
| CN204941911U (en) | A kind of device discharging mouth pressure for the test run of ore slurry pipeline main pump | |
| CN208563446U (en) | A kind of enclosed pressurization water system | |
| CN204757389U (en) | A pressure relief device for boiler heating jar | |
| CN204061963U (en) | There is the fixed water intake ball valve of water turbine of lumen concora crush | |
| CN204729180U (en) | A kind of Remote diesel engine brake cylinder | |
| CN203586233U (en) | Slurry dehydrating device with antifreezing bypass device | |
| CN204554005U (en) | Pneumatic cut-off valve fast opening and closing device | |
| CN201921374U (en) | Valve assembly for foam water spray system | |
| CN206310240U (en) | The cold pipe Quick drainage system of steam | |
| CN202673555U (en) | Electrohydraulic follow-up device for water turbine control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |