CN106439492A - Nitrogen type water-attack pressure release valve system - Google Patents
Nitrogen type water-attack pressure release valve system Download PDFInfo
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- CN106439492A CN106439492A CN201510487790.5A CN201510487790A CN106439492A CN 106439492 A CN106439492 A CN 106439492A CN 201510487790 A CN201510487790 A CN 201510487790A CN 106439492 A CN106439492 A CN 106439492A
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- nitrogen
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- temperature difference
- pressure
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Abstract
The invention belongs to a valve design technology, and particularly discloses a nitrogen type water-attack pressure release valve system. The nitrogen type water-attack pressure release valve system comprises a main valve, a pipeline meter, an electric control cabinet, a temperature difference stabilization bottle and a nitrogen source; a main valve inner chamber is connected with the nitrogen source and the temperature difference stabilization bottle through a valve group and pipelines; nitrogen of the main valve inner chamber is supplied by the nitrogen source; a pressure gauge for displaying setting pressure of a water-attack pressure release valve is arranged between the temperature difference stabilization bottle and the main valve inner chamber; and nitrogen pressure in the temperature difference stabilization bottle is the same as nitrogen setting pressure of the main valve inner chamber. The nitrogen type water-attack pressure release valve system is suitable for a conveying pipeline of a high-viscosity and poor-cleanliness medium; when the high-viscosity medium is conveyed, the main valve inner chamber can be filled with nitrogen rapidly, the nitrogen continuousness is good, the main valve acts and reacts sensitively, and the nitrogen type water-attack pressure release valve system is free from influence of the physical properties of the medium and is high in working environment adaptability; and the nitrogen type water-attack pressure release valve system is simple in structure and high in automation degree.
Description
Technical field
The invention belongs to valve designing technique is and in particular to a kind of pressure relief system for long-distance transmission pipeline.
Background technology
In long-distance transmission pipeline system, because valve switch speed is too fast, unexpected start and stop of pump and clear
The unexpected blocking of pipe device block etc. situation all can cause surge pressure wave in the duct rapidly transmission and pressure former
There is superposition on liquid, cause local superpressure, vibration and the possibility of pipeline, lead to damage pipeline and yard sets
Standby damage.For this reason, long distance oil pipeline generally carries out water attack protection using surge reliever, prevent from managing
Road hypertonia.
Long-distance transmission pipeline system both at home and abroad, is mounted with water attack in the entering the station of its dispatch station, outbound pipeline
Relief valve, in order to protective conduit, it is to avoid water hammer occurs.At present, it is common to use surge reliever,
It is divided into angie type and axial-flow type by circulation pattern, be divided into self-operated type and non-self-operated type by driving force.Due to angie type
Have the shortcomings that the amount of releasing is little, noise is big, application is less.Pilot-operated type surge reliever is as typically relying on oneself
Formula surge reliever is it is impossible to apply on high in viscosity, cleannes difference medium pipeline.Pilot-operated type water attack simultaneously
The movement response sensitivity level of relief valve, is limited by medium physical property itself, when medium viscosity is larger, may
There is main valve cavity medium underfill or slow full of process, lead to surge reliever cannot accurately open or close
Close, and the sealability of main valve can be affected.And traditional nitrogen type surge reliever is non-self-operated type water attack
The Typical Representative of relief valve, needs complicated control system, and maintenance time is limited by nitrogen reserves, needs
Want regular visit nitrogen surpluses it is impossible to be set using in unattended position for a long time.
Yet there are no the feed-line about viscosity height, cleannes difference medium can be applied to so far, have dynamic again
Be quick on the draw, working environment adaptability is strong, simple system, high degree of automation the features such as nitrogen type water
Hit pressure release valve system.
Content of the invention
It is an object of the invention to provide a kind of nitrogen type surge reliever system, its can be applied to viscosity high,
The feed-line of cleannes difference medium, movement response is sensitive simultaneously, simple system, high degree of automation.
Technical scheme is as follows：
A kind of nitrogen type surge reliever system, the valve group including main relief valve, being arranged on main relief valve,
The pipeline being connected with valve group, and the source nitrogen being connected and the temperature difference stabilize bottle with pipeline；Described valve group is installed
In the inner chamber of main relief valve, the pipeline that valve group connects has two groups, one group of connection source nitrogen, and another group connects temperature
Difference stabilizes bottle；The outlet of described source nitrogen is provided with electromagnetic valve and pressure transmitter.
In a kind of above-mentioned nitrogen type surge reliever system, also include control system, described control system
The signal receiving end of system connects electromagnetic valve and connects, and the signal output part of described control system connects pressure inverting
Device.
In a kind of above-mentioned nitrogen type surge reliever system, the described temperature difference is stabilized in bottle and main relief valve
Pipeline between chamber is provided with pressure gauge.
In a kind of above-mentioned nitrogen type surge reliever system, described source nitrogen outlet line is provided with regulation
Air relief valve.
In a kind of above-mentioned nitrogen type surge reliever system, the temperature difference stabilizes nitrogen pressure and main pressure release in bottle
Valve insertion room Nitrogen setting pressure is identical.
The remarkable result of the present invention is：
Because the present invention is situated between as the driving force controlling surge reliever action using the gas medium nitrogen of cleaning
Matter, and do not use the medium needing to convey in pipeline.Therefore present invention could apply to viscosity is high, cleannes
The feed-line of difference medium；
In the high medium of viscosity, after after releasing, pressure reaches setting value, nitrogen can quickly fill with main valve inner chamber
Room, nitrogen seriality is good, and therefore main valve events are quick on the draw, and is not subject to medium material properties affect, and working environment is fitted
Ying Xingqiang；
The system structure is simple, according to each pressure transmitter monitor in real time nitrogen cylinder group service condition of source nitrogen,
Can unmanned for a long time, high degree of automation.
Brief description
Fig. 1 is a kind of nitrogen type surge reliever system schematic；
In figure：1. main relief valve；2. pipeline instrument；3. electrical control cubicles；4. the temperature difference stabilizes bottle；5. source nitrogen；2-1.
Valve group；2-2. pipeline；2-3. pressure transmitter；2-4. electromagnetic valve；2-5. adjusts air relief valve；2-6. pressure gauge；5-1.
Nitrogen cylinder group.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
With reference to Fig. 1, nitrogen type surge reliever system include main relief valve 1, pipeline instrument 2, electrical control cubicles 3,
The temperature difference stabilizes bottle 4 and source nitrogen 5.
Bottle 4 is stabilized respectively by valve group 2-1, pipeline 2-2 and source nitrogen 5 and the temperature difference by main relief valve 1 inner cavity chamber
It is connected, main relief valve 1 inner cavity chamber's nitrogen is supplied by source nitrogen 5；The temperature difference is stabilized in bottle 4 and main relief valve 1
Equipped with pressure gauge 2-6 on pipeline between chamber, for showing the setting pressure of surge reliever, the temperature difference is stabilized
In bottle 4, nitrogen pressure is identical with main relief valve inner cavity chamber Nitrogen setting pressure；
Source nitrogen 5 is made up of several gas cylinders groups 5-1, is to be connected in parallel between each gas source bottle group 5-1.Often
The exit of individual gas source bottle group 5-1 is equipped with electromagnetic valve 2-4 and pressure transmitter 2-3, source nitrogen 5 outlet line
Place is carried out by adjusting air relief valve 2-5 equipped with adjusting air relief valve 2-5, the nitrogen pressure of main relief valve 1 inner cavity chamber
Set.
The outfan of electrical control cubicles 3 is connected with electromagnetic valve 2-4, and sending control signal makes electromagnetic valve 2-4 action.
The input of electrical control cubicles 3 is connected with pressure transmitter 2-3, receives the pressure of pressure transmitter 2-3 feedback
Signal.
When pressure medium is higher than that inner cavity chamber sets pressure, main relief valve 1 inner cavity chamber's nitrogen quickly enters the temperature difference and puts down
In suppression bottle 4, main relief valve 1 is opened.When after medium is released, pressure reaches setting value, nitrogen quickly fills with
Main relief valve 1 inner cavity chamber, main relief valve accurately cuts out.
When ambient temperature changes, during impact nitrogen pressure, bottle 4 is stabilized by the temperature difference and ensures main relief valve 1
Inner cavity chamber's nitrogen pressure is stablized in setting value it is ensured that surge reliever sets pressure stability.
When in nitrogen cylinder group 5-1, pressure is less than setting value, the pressure transmitter 2-3 of nitrogen cylinder group 5-1 can be anti-
Feed voltage force signal sends control signal and makes electromagnetic valve 2-4 action, automatic switchover nitrogen to electrical control cubicles 3, electrical control cubicles 3
Gas cylinders group 5-1 is as source nitrogen 5.Each nitrogen cylinder group 5-1 pressure transmitter 2-3 of source nitrogen 5 can will press
Force signal is sent in central control room, so that operator's monitor in real time source nitrogen state, changes nitrogen at any time
Gas cylinders group.
Electrical control cubicles 3 in the present embodiment adopt existing control system, can arrange relay, control electromagnetism
Valve events, can receive the pressure signal of pressure transmitter 2-3 feedback simultaneously, by existing control technology,
Draw control signal in time.
Claims (5)
1. a kind of nitrogen type surge reliever system, including main relief valve (1), is arranged on main relief valve (1)
On the pipeline (2-2) that is connected with valve group of valve group (2-1), and the source nitrogen (5) that is connected with pipeline and
The temperature difference stabilize bottle (4) it is characterised in that：Described valve group (2-1) is arranged on the inner chamber of main relief valve (1),
The pipeline (2-2) that valve group (2-1) connects has two groups, and one group connects source nitrogen (5), another group of connection temperature difference
Stabilize bottle (4)；The outlet of described source nitrogen (5) is provided with electromagnetic valve (2-4) and pressure transmitter (2-3).
2. as claimed in claim 1 a kind of nitrogen type surge reliever system it is characterised in that：Also include controlling
System processed, the signal receiving end of described control system connects electromagnetic valve (2-4) and connects, described control system
The signal output part of system connects pressure transmitter (2-3).
3. as claimed in claim 1 or 2 a kind of nitrogen type surge reliever system it is characterised in that：Described
The pipeline stabilized between bottle (4) and main relief valve (1) inner cavity chamber of the temperature difference be provided with pressure gauge (2-6).
4. as claimed in claim 1 or 2 a kind of nitrogen type surge reliever system it is characterised in that：Described
Source nitrogen (5) outlet line be provided with regulation air relief valve (2-5).
5. as claimed in claim 1 or 2 a kind of nitrogen type surge reliever system it is characterised in that：Described
It is identical with main relief valve inner cavity chamber Nitrogen setting pressure that the temperature difference stabilizes the interior nitrogen pressure of bottle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487790.5A CN106439492A (en) | 2015-08-10 | 2015-08-10 | Nitrogen type water-attack pressure release valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487790.5A CN106439492A (en) | 2015-08-10 | 2015-08-10 | Nitrogen type water-attack pressure release valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439492A true CN106439492A (en) | 2017-02-22 |
Family
ID=58093656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510487790.5A Pending CN106439492A (en) | 2015-08-10 | 2015-08-10 | Nitrogen type water-attack pressure release valve system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106439492A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488454A (en) * | 2018-05-18 | 2018-09-04 | 武汉船用机械有限责任公司 | A kind of pipeline pressure bleed-off system |
| CN108916652A (en) * | 2018-08-16 | 2018-11-30 | 北京航天石化技术装备工程有限公司 | A kind of thermodynamic equilibrium system of depressurized system |
| CN112943991A (en) * | 2021-02-09 | 2021-06-11 | 国家石油天然气管网集团有限公司华南分公司 | Multi-redundancy electromagnetic pilot type safety water hammer relief valve directly driven by vane motor |
| CN114017528A (en) * | 2021-10-09 | 2022-02-08 | 国家石油天然气管网集团有限公司 | Control system and control method for nitrogen type water hammer pressure relief valve |
| CN115814693A (en) * | 2023-02-06 | 2023-03-21 | 北京鹏宇昌亚环保科技有限公司 | Dynamic gas distribution instrument |
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| CN202946734U (en) * | 2012-11-20 | 2013-05-22 | 富阳派沃阀门有限公司 | Nitrogen-sealed valve |
| CN203147286U (en) * | 2013-01-23 | 2013-08-21 | 中国石油化工股份有限公司 | Protection control device for nitrogen type surge relief valve |
| CN205383432U (en) * | 2015-08-10 | 2016-07-13 | 北京航天动力研究所 | Nitrogen gas formula water hammer relief valve system |
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2015
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| CN202946734U (en) * | 2012-11-20 | 2013-05-22 | 富阳派沃阀门有限公司 | Nitrogen-sealed valve |
| CN203147286U (en) * | 2013-01-23 | 2013-08-21 | 中国石油化工股份有限公司 | Protection control device for nitrogen type surge relief valve |
| CN205383432U (en) * | 2015-08-10 | 2016-07-13 | 北京航天动力研究所 | Nitrogen gas formula water hammer relief valve system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488454A (en) * | 2018-05-18 | 2018-09-04 | 武汉船用机械有限责任公司 | A kind of pipeline pressure bleed-off system |
| CN108488454B (en) * | 2018-05-18 | 2020-06-26 | 武汉船用机械有限责任公司 | Pipeline pressure relief system |
| CN108916652A (en) * | 2018-08-16 | 2018-11-30 | 北京航天石化技术装备工程有限公司 | A kind of thermodynamic equilibrium system of depressurized system |
| CN108916652B (en) * | 2018-08-16 | 2023-11-21 | 北京航天石化技术装备工程有限公司 | Thermodynamic equilibrium system of decompression system |
| CN112943991A (en) * | 2021-02-09 | 2021-06-11 | 国家石油天然气管网集团有限公司华南分公司 | Multi-redundancy electromagnetic pilot type safety water hammer relief valve directly driven by vane motor |
| CN112943991B (en) * | 2021-02-09 | 2023-01-17 | 国家石油天然气管网集团有限公司华南分公司 | Multi-redundancy electromagnetic pilot type safety water hammer relief valve directly driven by vane motor |
| CN114017528A (en) * | 2021-10-09 | 2022-02-08 | 国家石油天然气管网集团有限公司 | Control system and control method for nitrogen type water hammer pressure relief valve |
| CN114017528B (en) * | 2021-10-09 | 2023-05-26 | 国家石油天然气管网集团有限公司 | Control system and control method for nitrogen type water hammer pressure relief valve |
| CN115814693A (en) * | 2023-02-06 | 2023-03-21 | 北京鹏宇昌亚环保科技有限公司 | Dynamic gas distribution instrument |
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Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |