CN208763985U - Overpressure prevention device for air separation plant pump box - Google Patents
Overpressure prevention device for air separation plant pump box Download PDFInfo
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- CN208763985U CN208763985U CN201820783793.2U CN201820783793U CN208763985U CN 208763985 U CN208763985 U CN 208763985U CN 201820783793 U CN201820783793 U CN 201820783793U CN 208763985 U CN208763985 U CN 208763985U
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- flange
- pump box
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- blind flange
- connector
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Abstract
A kind of overpressure prevention device for air separation plant pump box, it mainly includes 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 guaranteeing 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 guarantee that rainwater does not enter pump box；It has the features such as structure is simple, safe and reliable, rationally efficient, and practicability is high, suitable for the small-sized cell 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 technique
It requires to consider 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 guarantees when accident conditions or blanket gas superpressure occurs, and can prevent further rapidly by pressure reduction in ice chest
Ice chest destroy.Usually structure is complicated for this device, 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 the safety valve for being used for air separation cooling box is used for the small cold of the pearlifes such as pump box heat preservation
Case, will 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.
Summary of the invention
It is an object of the invention to overcome deficiency existing for the small heat preservation box space such as prior art pump box, and provide a kind of knot
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
It mainly include 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 guaranteeing 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 guarantee that rainwater does not enter pump box.
As preferred: opening 12 through-hole on blind flange, the aperture of pump box top panel and the cylinder other end weld；
The flange and blind flange is replaced with steel plate, and cylinder uses 114.3 × 4 seamless steel pipe, cylinder oil paint coating
Anti-corrosion, waterproof cover, waterproof cylinder and connector are zinc-plated, and the Weight control of blind flange is that 1kg rises to guarantee to reach 10mbar
Jump 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 greater 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 passes through connector for 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 the installation space of pump box (but being not limited to pump box) by smaller size and simple structure；
By increasing rain cover, avoids rainwater from entering pump box and cause to freeze, influence equipment safety.
Application of the invention, the superpressure preventing for small ice chest provide possibility, make pearlife keep the temperature with more flexible.
For the project implementation, reduce cost of investment and operation expense, lifting device safety and stability.
Detailed description of the invention
Fig. 1 is primary structure schematic diagram of the invention.
Fig. 2 is general structure schematic diagram of the invention.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings: Fig. 1, shown in 2, a kind of for the anti-of air separation plant pump box
Superpressure device, it mainly includes 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 guarantee that rainwater does not enter pump box.
As preferred embodiment: opening 12 through-hole, the aperture of pump box top panel and cylinder on blind flange of the present invention
The welding of the body other end；
The flange 2 and blind flange 3 is replaced with steel plate, and cylinder 1 uses 114.3 × 4 seamless steel pipe, and cylinder 1 paints
Painting anticorrosion, waterproof cover 8, waterproof cylinder 7 and connector 6 are zinc-plated, and the Weight control of blind flange 3 is 1kg to guarantee to reach
The take-off condition of 10mbar release pressure.
Claims (2)
1. a kind of overpressure prevention device for air separation plant pump box, it mainly includes cylinder (1), flange (2), blind flange (3), close
Seal (4), bolt (5), connector (6), waterproof cylinder (7), waterproof cover (8), it is characterised in that: the one of the cylinder (1)
End is welded to connect with flange (2), and flange (2) is connect with blind flange (3) by bolt (5), bolt (5) big end and flange
(2) spot welding, blind flange (3) can be movable in the vertical direction along bolt (5), are equipped between flange (2) and blind flange (3)
Guarantee the nitrile rubber sealing ring (4) that pump box seals in normal state；Rainproof cover plate is had additional on the outside of blind flange (3)
(8), the rainproof cover plate (8) and waterproof cylinder (7) welding, and water repellent component is formed with connector, and the water repellent component passes through
Connector (6) and flange (2) are welded to connect, to guarantee 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: on blind flange (3)
12 through-hole is opened, the aperture of pump box top panel and the cylinder other end weld；
The flange (2) and blind flange (3) is replaced with steel plate, and cylinder (1) uses 114.3 × 4 seamless steel pipe, cylinder (1)
Oil paint coating anti-corrosion, rainproof cover plate (8), waterproof cylinder (7) and connector (6) are zinc-plated, and the Weight control of blind flange (3) is 1kg
To guarantee the take-off condition for reaching 10mbar release pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783793.2U CN208763985U (en) | 2018-05-24 | 2018-05-24 | Overpressure prevention device for air separation plant pump box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783793.2U CN208763985U (en) | 2018-05-24 | 2018-05-24 | Overpressure prevention device for air separation plant pump box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763985U true CN208763985U (en) | 2019-04-19 |
Family
ID=66126344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820783793.2U Active CN208763985U (en) | 2018-05-24 | 2018-05-24 | Overpressure prevention device for air separation plant pump box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457901A (en) * | 2018-05-24 | 2018-08-28 | 浙江智海化工设备工程有限公司 | A kind of overpressure prevention device for air separation plant pump box |
| CN116623074A (en) * | 2023-05-26 | 2023-08-22 | 新兴铸管股份有限公司 | Cover device for spheroidizing pure magnesium ingot by bell jar method |
-
2018
- 2018-05-24 CN CN201820783793.2U patent/CN208763985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457901A (en) * | 2018-05-24 | 2018-08-28 | 浙江智海化工设备工程有限公司 | A kind of overpressure prevention device for air separation plant pump box |
| CN116623074A (en) * | 2023-05-26 | 2023-08-22 | 新兴铸管股份有限公司 | Cover device for spheroidizing pure magnesium ingot by bell jar method |
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