CN103867897A - Nitrogen depression tank - Google Patents
Nitrogen depression tank Download PDFInfo
- Publication number
- CN103867897A CN103867897A CN201410065298.4A CN201410065298A CN103867897A CN 103867897 A CN103867897 A CN 103867897A CN 201410065298 A CN201410065298 A CN 201410065298A CN 103867897 A CN103867897 A CN 103867897A
- Authority
- CN
- China
- Prior art keywords
- valve
- nitrogen
- manual ball
- pressure
- pressure reducing
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 21
- 230000006837 decompression Effects 0.000 claims description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a nitrogen depression tank, which comprises a depression tank body, an air inlet, an air outlet, a high pressure hose, a safety valve A, a primary pressure reducing valve, a secondary pressure reducing valve, a primary bypass valve, a safety valve B, a secondary pressure reducing valve pressure gauge, a manual ball valve A, a manual ball valve B, a manual ball valve C, a manual ball valve D, a connector A and a connector B, and is characterized in that a primary bypass pipeline is arranged in the depression box body; the primary bypass valve and a pressure reducing pore plate are arranged beside the primary bypass pipeline. The nitrogen depression tank has the beneficial effects that the primary bypass pipeline is arranged in the depression box body, and when the primary pressure reducing valve fails, high pressure manual ball valves on the primary bypass are opened in a small extent to decompress nitrogen, then the nitrogen is decompressed layer by layer through the pressure reducing pore plate, safe and stable pressure is obtained, and the nitrogen with safe and stable pressure can be used in emergency.
Description
Technical field
The present invention relates to fire-protection equipment field, be specifically related to a kind of nitrogen decompression cabinet.
Background technique
At present, the nitrogen decompression cabinet pipeline on market is generally nitrogen after one-level pressure relief valve decompression and enters the longitudinal nitrogen house steward in deck, and in the time that one-level pressure relief valve fault cannot be worked, whole system cannot be worked.
Summary of the invention
In order to address the deficiencies of the prior art, the invention provides a kind of nitrogen decompression cabinet, by set up one-level bypass line in decompression casing, in the time of one-level pressure relief valve fault, open by a small margin the high pressure hand-operated ball valve in one-level bypass, after being reduced pressure, nitrogen after pressure reducing orifice successively reduces pressure, obtains again the air pressure of safety and stability, so that Emergency use.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme: a kind of nitrogen decompression cabinet, comprise decompression cabinet, suction port, air outlet, high pressure hose, safety valve A, one-level pressure relief valve, second depressurized valve, one-level bypass valve, safety valve B, second depressurized valve pressure gauge, manual ball valve A, manual ball valve B, manual ball valve C, manual ball valve D, connection mouth A, connection mouth B, it is characterized in that: describedly have additional one-level bypass line in decompression in casing, described at other one-level bypass valve and the pressure reducing orifice of having additional of one-level bypass line.
The invention has the beneficial effects as follows: the invention provides a kind of nitrogen decompression cabinet, by set up one-level bypass line in decompression casing, in the time of one-level pressure relief valve fault, open by a small margin the high pressure hand-operated ball valve in one-level bypass, after being reduced pressure, nitrogen after pressure reducing orifice successively reduces pressure, obtains again the air pressure of safety and stability, so that Emergency use.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of nitrogen decompression cabinet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of nitrogen decompression cabinet, comprise decompression cabinet (1), suction port (2), air outlet (3), high pressure hose (4), safety valve A(5), one-level pressure relief valve (6), second depressurized valve (7), one-level bypass valve (8), safety valve B(10), second depressurized valve pressure gauge (11), manual ball valve A(12), manual ball valve B(13), manual ball valve C(14), manual ball valve D(15), connection mouth A(17), connection mouth B(18), it is characterized in that: describedly have additional one-level bypass line (9) in decompression in casing, described at other one-level bypass valve (8) and the pressure reducing orifice (16) of having additional of one-level bypass line (9).
Wherein, connection mouth A(17) be to be connected with 0.017Mpa nitrogen, connection mouth B(18) be to be connected with 0.7Mpa nitrogen.
More than the description of this invention and non-limiting, based on other embodiments of inventive concept, also all among protection scope of the present invention.
Claims (1)
1. a nitrogen decompression cabinet, comprise decompression cabinet (1), suction port (2), air outlet (3), high pressure hose (4), safety valve A(5), one-level pressure relief valve (6), second depressurized valve (7), one-level bypass valve (8), safety valve B(10), second depressurized valve pressure gauge (11), manual ball valve A(12), manual ball valve B(13), manual ball valve C(14), manual ball valve D(15), connection mouth A(17), connection mouth B(18), it is characterized in that: describedly have additional one-level bypass line (9) in decompression in casing, described at other one-level bypass valve (8) and the pressure reducing orifice (16) of having additional of one-level bypass line (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065298.4A CN103867897A (en) | 2014-02-26 | 2014-02-26 | Nitrogen depression tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065298.4A CN103867897A (en) | 2014-02-26 | 2014-02-26 | Nitrogen depression tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867897A true CN103867897A (en) | 2014-06-18 |
Family
ID=50906736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410065298.4A Pending CN103867897A (en) | 2014-02-26 | 2014-02-26 | Nitrogen depression tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103867897A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583372Y (en) * | 2002-11-22 | 2003-10-29 | 柯寿乾 | Gas pressure-reducing device with idling bypass compensation valve |
| CN2653277Y (en) * | 2003-10-29 | 2004-11-03 | 关东 | Heat conduction nitrogen protector for hot medium furnace |
| US20080017390A1 (en) * | 2006-07-19 | 2008-01-24 | Bowie Angus G | Isolation tool |
| CN201628078U (en) * | 2010-01-01 | 2010-11-10 | 母荣兴 | Pipeline liquefied gas decompression device |
| CN102720946A (en) * | 2012-03-28 | 2012-10-10 | 上海启元气体发展有限公司 | Stable gas supply method |
| CN203757373U (en) * | 2014-02-26 | 2014-08-06 | 昆山宁华消防系统有限公司 | Nitrogen depressuring tank |
-
2014
- 2014-02-26 CN CN201410065298.4A patent/CN103867897A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2583372Y (en) * | 2002-11-22 | 2003-10-29 | 柯寿乾 | Gas pressure-reducing device with idling bypass compensation valve |
| CN2653277Y (en) * | 2003-10-29 | 2004-11-03 | 关东 | Heat conduction nitrogen protector for hot medium furnace |
| US20080017390A1 (en) * | 2006-07-19 | 2008-01-24 | Bowie Angus G | Isolation tool |
| CN201628078U (en) * | 2010-01-01 | 2010-11-10 | 母荣兴 | Pipeline liquefied gas decompression device |
| CN102720946A (en) * | 2012-03-28 | 2012-10-10 | 上海启元气体发展有限公司 | Stable gas supply method |
| CN203757373U (en) * | 2014-02-26 | 2014-08-06 | 昆山宁华消防系统有限公司 | Nitrogen depressuring tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |