CN108457901A - A kind of overpressure prevention device for air separation plant pump box - Google Patents
A kind of overpressure prevention device for air separation plant pump box Download PDFInfo
- Publication number
- CN108457901A CN108457901A CN201810509383.3A CN201810509383A CN108457901A CN 108457901 A CN108457901 A CN 108457901A CN 201810509383 A CN201810509383 A CN 201810509383A CN 108457901 A CN108457901 A CN 108457901A
- Authority
- CN
- China
- Prior art keywords
- flange
- cylinder
- pump box
- blind flange
- connector
- 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.)
- Pending
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 14
- 230000002265 prevention Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 9
- 230000002940 repellent Effects 0.000 claims abstract description 8
- 239000005871 repellent Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000004260 weight control Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 5
- 230000003405 preventing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
A kind of overpressure prevention device for air separation plant pump box, it includes mainly cylinder, flange, blind flange, sealing ring, bolt, connector, waterproof cylinder, waterproof cover, one end of the cylinder is welded to connect with flange, flange is bolted with blind flange, bolt big end and flange spot welding, blind flange can be movable in the vertical direction along bolt, and the nitrile rubber sealing ring for ensureing that pump box seals in normal state is equipped between flange and blind flange；Rainproof cover plate is had additional on the outside of blind flange, the rainproof cover plate and waterproof barrel soldering, and water repellent component is formed with connector, and the water repellent component is connect by connector with flange welding, to ensure that rainwater does not enter pump box；It has the features such as simple in structure, safe and reliable, rationally efficient, practicability is high, the small-sized cell for being suitable for being kept the temperature by pearlife, such as pump box, clack box, collector, can effectively prevent blanket gas superpressure in cell and cause safety accident.
Description
Technical field
The present invention relates to a kind of overpressure prevention devices for air separation plant pump box, belong to the safety devices of air separation plant
Technical field.
Background technology
It is required for considering that a certain number of superpressure preventings are arranged on the main ice chest of air separation unit, plate heat exchanger ice chest at present
Device ensures when accident conditions or blanket gas superpressure occurs, and can be prevented further rapidly by pressure reduction in ice chest
Ice chest destroy.This device is usually complicated, takes up space also bigger.
With the diversification of air separation unit downstream demand, the number of species of equipment and machine increase, and many cryogenic pipings are set
It is standby etc. to need using pearlife incubator, such as pump box, low temperature jacket heat-preservation pipe etc..And the specific properties of pearlife, heat preservation
Form needs a series of matching components, such as drying pearlife while the blanket gas of positive pressure, sand loading in case being kept to unload Sha Kou, guarantor
Incubator pressure relief device etc..And pressure relief device therein plays the role of incubator safety valve, is to prevent incubator
Because the important component of accident occurs for superpressure；If small cold by being kept the temperature for pearlifes such as pump boxs for the safety valve of air separation cooling box
Case, can cause that pump box design is excessive, waste material, while also be unable to reach satisfied effect, it is therefore desirable to be independent pump box,
Expansion cabinet and pearlife insulation jacket pipeline design special overpressure prevention device, to meet its demand for security so that structure is tight
It gathers, reduces cost.
Invention content
It is insufficient existing for the small heat preservation box space such as prior art pump box it is an object of the invention to overcome, and a kind of knot is provided
Structure is simple, securely and reliably, is rationally efficiently used for the overpressure prevention device of air separation plant pump box.
The present invention completes by following technical solution：A kind of overpressure prevention device for air separation plant pump box, it
Include mainly cylinder, flange, blind flange, sealing ring, bolt, connector, waterproof cylinder, waterproof cover, one end of the cylinder
It is welded to connect with flange, flange is bolted with blind flange, bolt big end and flange spot welding, and blind flange can be along
Bolt is movable in the vertical direction, and the nitrile rubber for ensureing that pump box seals in normal state is equipped between flange and blind flange
Sealing ring；Rainproof cover plate is had additional on the outside of blind flange, the rainproof cover plate and waterproof barrel soldering, and it is anti-with connector composition
Water assembly, and the water repellent component is connect by connector with flange welding, to ensure that rainwater does not enter pump box.
As preferred：12 through-hole is opened on blind flange, the trepanning of pump box top panel is welded with the cylinder other end；
The flange and blind flange is replaced with steel plate, and cylinder uses 114.3 × 4 seamless steel pipe, cylinder oil paint coating anti-
Corruption, waterproof cover, waterproof cylinder and connector are zinc-plated, and the Weight control of blind flange is 1kg to ensure to reach 10mbar take-offs
The take-off condition of pressure.
Blind flange of the present invention can move in the vertical direction along bolt direction, by matching to blind flange
Weight, achieve in the case pressure be more than 10mbar when, blind flange is jacked up, pressure releasing, is padded between flange and blind flange close
Seal, plays sealing function, and the water repellent component of waterproof cover, waterproof cylinder and connector composition is by connector by itself and flange
Welding, plays the role of preventing rainwater from entering pump box.
The present invention is commonly applied on the independent pump box of later cryogenic air separation unit device pearlife heat preservation, it can also be used to clack box,
On the small cell such as jacket heat-preservation pipe, pump box internal cause superpressure is avoided to cause accident, ensuring equipment safe and stable operation.
The present invention meets pump box by smaller size and simple structure（But it is not limited to pump box）Installation space；
By increasing rain cover, avoids rainwater from entering pump box and cause to freeze, influence equipment safety.
The application of the present invention, the superpressure preventing for small ice chest provide possibility, keep the utilization that pearlife is kept the temperature more flexible.
For the project implementation, reduce cost of investment and operation expense, lifting device safety and stability.
Description of the drawings
Fig. 1 is the primary structure schematic diagram of the present invention.
Fig. 2 is the general structure schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be described in detail：Fig. 1, shown in 2, it is a kind of for the anti-of air separation plant pump box
Superpressure device, it includes mainly cylinder 1, flange 2, blind flange 3, sealing ring 4, bolt 5, connector 6, waterproof cylinder 7, waterproof cover
Plate 8, one end and the flange 2 of the cylinder 1 are welded to connect, and flange 2 is connect with blind flange 3 by bolt 5,5 big end of bolt
With 2 spot welding of flange, blind flange 3 can be movable in the vertical direction along bolt 5, and guarantee is equipped between flange 2 and blind flange 3
The nitrile rubber sealing ring 4 that pump box seals in normal state；Rainproof cover plate 8 is had additional in the outside of blind flange 3, the rain-proof cover
Plate 8 and waterproof cylinder 7 weld, and form water repellent component with connector, and the water repellent component passes through connector 6 and flange welding
Connection, to ensure that rainwater does not enter pump box.
As preferred embodiment：12 through-hole, the trepanning of pump box top panel and cylinder are opened on blind flange of the present invention
The body other end welds；
The flange 2 and blind flange 3 is replaced with steel plate, and cylinder 1 is using 114.3 × 4 seamless steel pipe, 1 oil paint coating of cylinder
Anti-corrosion, waterproof cover 8, waterproof cylinder 7 and connector 6 are zinc-plated, and the Weight control of blind flange 3 is 1kg to ensure to reach
The take-off condition of 10mbar release pressures.
Claims (2)
1. a kind of overpressure prevention device for air separation plant pump box, it includes mainly cylinder（1）, flange（2）, blind flange（3）, it is close
Seal（4）, bolt（5）, connector（6）, waterproof cylinder（7）, waterproof cover（8）, it is characterised in that：The cylinder（1）One
End and flange（2）It is welded to connect, flange（2）With blind flange（3）Pass through bolt（5）Connection, bolt（5）Big end and flange
（2）Spot welding, blind flange（3）It can be along bolt（5）It is movable in the vertical direction, flange（2）With blind flange（3）Between be equipped with
Ensure the nitrile rubber sealing ring that pump box seals in normal state（4）；In blind flange（3）Outside have additional rainproof cover plate
（8）, the rainproof cover plate（8）With waterproof cylinder（7）Welding, and water repellent component is formed with connector, and the water repellent component passes through
Connector（6）With flange（2）It is welded to connect, to ensure that rainwater does not enter pump box.
2. the overpressure prevention device according to claim 1 for air separation plant pump box, it is characterised in that：Blind flange（3）On
12 through-hole is opened, the trepanning of pump box top panel is welded with the cylinder other end；
The flange（2）And blind flange（3）It is replaced with steel plate, cylinder（1）Using 114.3 × 4 seamless steel pipe, cylinder（1）
Oil paint coating anti-corrosion, waterproof cover（8）, waterproof cylinder（7）And connector（6）It is zinc-plated, blind flange（3）Weight control be 1kg
To ensure the take-off condition for reaching 10mbar release pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509383.3A CN108457901A (en) | 2018-05-24 | 2018-05-24 | A kind of overpressure prevention device for air separation plant pump box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509383.3A CN108457901A (en) | 2018-05-24 | 2018-05-24 | A kind of overpressure prevention device for air separation plant pump box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457901A true CN108457901A (en) | 2018-08-28 |
Family
ID=63214651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810509383.3A Pending CN108457901A (en) | 2018-05-24 | 2018-05-24 | A kind of overpressure prevention device for air separation plant pump box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196508A (en) * | 2020-01-24 | 2020-05-26 | 杭州制氧机集团股份有限公司 | A device that is used for empty cold box facial make-up pearl sand usefulness that divides |
| CN114087155A (en) * | 2021-08-02 | 2022-02-25 | 杭州制氧机集团股份有限公司 | Detachable cryogenic liquid pump box top cover of air separation equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026595A1 (en) * | 2003-08-29 | 2005-03-24 | Treade As | Blind flange valve |
| CN201547240U (en) * | 2009-11-26 | 2010-08-11 | 上海航天能源有限公司 | Novel inclined-surface sealing form movable connecting small-sized blind plate |
| CN201715064U (en) * | 2010-05-20 | 2011-01-19 | 江苏宜川仪表有限公司 | Overpressure prevention safety device of tanks |
| CN202666663U (en) * | 2012-07-09 | 2013-01-16 | 王献 | Anti-explosion device for tail gas in urea production system |
| DE102013202787A1 (en) * | 2013-02-20 | 2014-08-21 | Lannewehr + Thomson GmbH & Co. KG | Flange connection useful for pipes in e.g. chemical process plant, comprises flange part arranged in sealing engagement with counter element, and an insulation part having sealing element and flange insulating ring made of ceramic material |
| CN208763985U (en) * | 2018-05-24 | 2019-04-19 | 浙江智海化工设备工程有限公司 | Overpressure prevention device for air separation plant pump box |
-
2018
- 2018-05-24 CN CN201810509383.3A patent/CN108457901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026595A1 (en) * | 2003-08-29 | 2005-03-24 | Treade As | Blind flange valve |
| CN201547240U (en) * | 2009-11-26 | 2010-08-11 | 上海航天能源有限公司 | Novel inclined-surface sealing form movable connecting small-sized blind plate |
| CN201715064U (en) * | 2010-05-20 | 2011-01-19 | 江苏宜川仪表有限公司 | Overpressure prevention safety device of tanks |
| CN202666663U (en) * | 2012-07-09 | 2013-01-16 | 王献 | Anti-explosion device for tail gas in urea production system |
| DE102013202787A1 (en) * | 2013-02-20 | 2014-08-21 | Lannewehr + Thomson GmbH & Co. KG | Flange connection useful for pipes in e.g. chemical process plant, comprises flange part arranged in sealing engagement with counter element, and an insulation part having sealing element and flange insulating ring made of ceramic material |
| CN208763985U (en) * | 2018-05-24 | 2019-04-19 | 浙江智海化工设备工程有限公司 | Overpressure prevention device for air separation plant pump box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196508A (en) * | 2020-01-24 | 2020-05-26 | 杭州制氧机集团股份有限公司 | A device that is used for empty cold box facial make-up pearl sand usefulness that divides |
| CN114087155A (en) * | 2021-08-02 | 2022-02-25 | 杭州制氧机集团股份有限公司 | Detachable cryogenic liquid pump box top cover of air separation equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9447898B1 (en) | Ultra-high temperature rigidity seal ball valve | |
| CN103597264B (en) | Bulkhead fitment combination part | |
| CN108457901A (en) | A kind of overpressure prevention device for air separation plant pump box | |
| CN208763985U (en) | Overpressure prevention device for air separation plant pump box | |
| CN202868147U (en) | Sealing member for high temperature pipe flange | |
| CN211501899U (en) | Watertight cabin high-temperature hot oil pipe cabin-through device | |
| CN104405973B (en) | Flange steel-plastic multiple tube regulates short tube | |
| CN103604305A (en) | Vessel atmospheric condenser, manufacturing method thereof and vessel closed cycle system | |
| CN203384636U (en) | Cryogenic fluid loading and unloading equipment | |
| CN2457407Y (en) | Intelligent emergency fast cut-off valve | |
| CN206449274U (en) | A kind of explosion-proof stop valve of remote control anti-corrosion | |
| CN211083288U (en) | Pipe joint protection device for gas conveying | |
| CN201579263U (en) | Anti-spattering baffle plate without leakage points | |
| CN212480142U (en) | Stop valve for natural gas pipeline with anti-drop mechanism | |
| CN210662321U (en) | Pipeline structure for preventing internal leakage of high-side pressure reducing valve | |
| CN105927814A (en) | Flange leakage protection device | |
| CN208090164U (en) | The plugging structure of low temp area inert gas micro-positive pressure protection pipeline | |
| CN206290723U (en) | A kind of explosion-proof butterfly valve of remote control | |
| CN102951383A (en) | Sealed oil nozzle used for oil bag | |
| CN207701185U (en) | Turbo-generator Set gland-packing leakage system | |
| CN206329573U (en) | A kind of tower crane integral hydraulic cylinder of built-in cylinder valve | |
| CN106871704B (en) | A kind of online blocking method of tubular heat exchanger | |
| CN208265038U (en) | A kind of novel emergency is released manhole | |
| CN205689874U (en) | Pneumatic travel switch for jet fuel system hydraulic remote control valve | |
| CN201293181Y (en) | Direct-burried double-insurance corrugation compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 280 Xingye Road, Leidian Town, Deqing County, Huzhou City, Zhejiang Province, 313219 Applicant after: Yingde Gas Engineering (Zhejiang) Co.,Ltd. Address before: 313219 Jingyi Road, Deqing Linhang Industrial Zone, LEIDIAN Town, Deqing County, Huzhou City, Zhejiang Province Applicant before: ZHEJIANG ZHIHAI CHEMICAL EQUIPMENT ENGINEERING Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180828 |