CN204587761U - A kind of denitrating system ammonia storage tank blowdown anti-block apparatus - Google Patents
A kind of denitrating system ammonia storage tank blowdown anti-block apparatus Download PDFInfo
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- CN204587761U CN204587761U CN201520304278.8U CN201520304278U CN204587761U CN 204587761 U CN204587761 U CN 204587761U CN 201520304278 U CN201520304278 U CN 201520304278U CN 204587761 U CN204587761 U CN 204587761U
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Abstract
The utility model discloses a kind of denitrating system ammonia storage tank blowdown anti-block apparatus, the top of described out of stock system ammonia storage tank is provided with safety valve, the bottom of ammonia storage tank is communicated with blow-off pipe and is provided with foul valve on blow-off pipe, the blow-off pipe of described foul valve front end is communicated with nitrogen pipeline, and compression indicator and electric control valve is provided with on described nitrogen pipeline, described nitrogen pipeline is by high pressure bottled nitrogen air feed.In the utility model, utilize bottled pressure nitrogen gas to fit over ammonia storage tank foul valve inflow point through pipeline exactly and carry out blowback, the tamper be blocked in foul valve preceding pipeline is blown, during general blowing, nitrogen pressure controls at the 0.1-0.3Mpa higher than ammonia storage tank pressure automatically, can ensure to blow logical, in turn ensure that pipe safety, nitrogen blow-off controls to realize automatic control by electric control valve.In liquefied ammonia storage tank, liquefied ammonia is pure, runs most important to ammonia pump, ensure that the normal operation of catalysts selective reducing process denitrating system (being called for short SCR).
Description
Technical field:
The utility model relates to a kind of denitrating system ammonia storage tank blowdown anti-block apparatus.
Background technology:
Denitrating system ammonia storage tank blowdown Problems existing is originally mainly: when liquefied ammonia is impure, containing impurity such as greasy dirts, special in running into temperature and being too low, very easily result in blockage, to cause in liquefied ammonia storage tank the impurity such as greasy dirt to get more and more, seriously cause ammonia pump cisco unity malfunction.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of denitrating system ammonia storage tank blowdown anti-block apparatus, particular by the mode installing a set of nitrogen blow-off preventing clogging up device before the import of ammonia storage tank foul valve additional, dredging is blown down under ammonia storage tank is blocked in the state of not stopping as run into, ensure that ammonia pump import is unimpeded, improve denitrification apparatus cycle of run.
The utility model technical solution problem adopts following technical scheme:
A kind of denitrating system ammonia storage tank blowdown anti-block apparatus, the top of described out of stock system ammonia storage tank is provided with safety valve, the bottom of ammonia storage tank is communicated with blow-off pipe and is provided with foul valve on blow-off pipe, the blow-off pipe of described foul valve front end is communicated with nitrogen pipeline, and compression indicator and electric control valve is provided with on described nitrogen pipeline, described nitrogen pipeline is by high pressure bottled nitrogen air feed.
Described ammonia storage tank is located in ammonia storage room, and be provided with ammonia storage tank shower at the top in ammonia storage room, shower is provided with multiple spray head; The ground in described ammonia storage room is provided with sewage draining exit.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
Denitrating system ammonia storage tank is the key equipment of catalysts selective reducing process denitrating system (being called for short SCR), because in-built concentration is 99% liquefied ammonia, it is the Hazardous Chemical Substances of the strict control and management of industry, storage and the management of liquefied ammonia have strict administrative provisions, liquefied ammonia storage tank generally uses pressure all at the extraordinary pressure container (safety attachment such as compression indicator, safety valve, liquidometer, atmospheric valve is complete) of more than 1.6Mpa, careless slightlyly will lead to significant leakage accident, even explosion accident! Due to the raw material that ammonia is catalysts selective reducing process denitrating system (being called for short SCR), extensively used, in the production of ammonia, have greasy dirt and impurity easily to block ammonia storage tank blow-off line unavoidably, cannot clear drains under prerequisite that is not emptying, that do not replace.Select the dredging of water, steam all inadvisable, air definitely can not be used to dredge, do not do a good job in lead to serious accident! For solving this difficult problem, the utility model devises a kind of denitrating system ammonia storage tank blowdown anti-block apparatus: be exactly adopt the bottled pressure nitrogen gas of high pressure, utilize the pressure of nitrogen that the greasy dirt of blocking ammonia storage tank blow-off line and impurity are blown down dredging, to ensure liquefied ammonia purity, ensure that ammonia pump normally runs, to ensure the long-term operation of denitrating system, improve denitration efficiency.
In the utility model, utilize bottled pressure nitrogen gas to fit over ammonia storage tank foul valve inflow point through pipeline exactly and carry out blowback, the tamper be blocked in foul valve preceding pipeline is blown, during general blowing, nitrogen pressure controls at the 0.1-0.3Mpa higher than ammonia storage tank pressure automatically, can ensure to blow logical, in turn ensure that pipe safety, nitrogen blow-off controls to realize automatic control by electric control valve.In liquefied ammonia storage tank, liquefied ammonia is pure, runs most important to ammonia pump, ensure that the normal operation of catalysts selective reducing process denitrating system (being called for short SCR).
Beneficial effect is embodied in:
Under the state of 1, do not stop using at ammonia storage tank, not replacing, the ammonia storage tank blow-off line automatically blowing down blocking can be realized, ensure that denitrification apparatus normally runs, improve cycle of run.
2, because nitrogen is that medium blows down block part, not only safe but also reliable.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1 ammonia storage tank, 2 safety valves, 3 foul valves, 4 nitrogen pipelines, 5 electric control valves, 6 compression indicators, 7 showers, 8 spray heads, 9 sewage draining exits.
Below by way of detailed description of the invention, and the utility model is described in further detail by reference to the accompanying drawings.
Detailed description of the invention:
Embodiment: composition graphs 1, ammonia storage tank 1 is located in ammonia storage room, and be provided with ammonia storage tank shower 7 at the top in ammonia storage room, shower 7 is provided with multiple spray head 8; Can be used for carrying out spraying cooling, cleaning etc. to ammonia storage tank, the ground in ammonia storage room is provided with sewage draining exit 9, shower water can be drawn recycle.
Safety valve 2 is provided with at the top of out of stock system ammonia storage tank 1, the bottom of ammonia storage tank is communicated with blow-off pipe and on blow-off pipe, is provided with foul valve 3, the blow-off pipe of foul valve front end is communicated with nitrogen pipeline 4, and on nitrogen pipeline 4, being provided with compression indicator 6 and electric control valve 5, nitrogen pipeline 4 is by high pressure bottled nitrogen air feed.
In enforcement, utilize bottled pressure nitrogen gas to fit over ammonia storage tank foul valve inflow point through pipeline exactly and carry out blowback, the tamper be blocked in foul valve preceding pipeline is blown, during general blowing, nitrogen pressure controls at the 0.1-0.3Mpa higher than ammonia storage tank pressure automatically, can ensure to blow logical, in turn ensure that pipe safety, nitrogen blow-off controls to realize automatic control by electric control valve.In liquefied ammonia storage tank, liquefied ammonia is pure, runs most important to ammonia pump, ensure that the normal operation of catalysts selective reducing process denitrating system (being called for short SCR).
Claims (2)
1. a denitrating system ammonia storage tank blowdown anti-block apparatus, the top of described out of stock system ammonia storage tank (1) is provided with safety valve (2), the bottom of ammonia storage tank is communicated with blow-off pipe and on blow-off pipe, is provided with foul valve (3), it is characterized in that, the blow-off pipe of described foul valve front end is communicated with nitrogen pipeline (4), and on described nitrogen pipeline (4), being provided with compression indicator (6) and electric control valve (5), described nitrogen pipeline (4) is by high pressure bottled nitrogen air feed.
2. a kind of denitrating system ammonia storage tank blowdown anti-block apparatus according to claim 1, it is characterized in that, described ammonia storage tank (1) is located in ammonia storage room, be provided with ammonia storage tank shower (7) at the top in ammonia storage room, shower (7) is provided with multiple spray head (8); The ground in described ammonia storage room is provided with sewage draining exit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304278.8U CN204587761U (en) | 2015-05-12 | 2015-05-12 | A kind of denitrating system ammonia storage tank blowdown anti-block apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304278.8U CN204587761U (en) | 2015-05-12 | 2015-05-12 | A kind of denitrating system ammonia storage tank blowdown anti-block apparatus |
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| CN204587761U true CN204587761U (en) | 2015-08-26 |
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| CN201520304278.8U Active CN204587761U (en) | 2015-05-12 | 2015-05-12 | A kind of denitrating system ammonia storage tank blowdown anti-block apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847417A (en) * | 2017-11-30 | 2019-06-07 | 南通星辰合成材料有限公司 | A kind of high organic wastewater with high salt is temporary and precipitates storage tank |
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2015
- 2015-05-12 CN CN201520304278.8U patent/CN204587761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847417A (en) * | 2017-11-30 | 2019-06-07 | 南通星辰合成材料有限公司 | A kind of high organic wastewater with high salt is temporary and precipitates storage tank |
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