CN219775475U

CN219775475U - Automatic nitrogen protection device of dangerous chemical temporary storage warehouse

Info

Publication number: CN219775475U
Application number: CN202320906718.1U
Authority: CN
Inventors: 董晴云; 赵宇; 周伟; 王光武; 刘晓文
Original assignee: Anji Smart Supply And Marketing Technology Service Co ltd
Current assignee: Anji Smart Supply And Marketing Technology Service Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-09-29
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses an automatic nitrogen protection device for a temporary storage warehouse of dangerous chemicals, which comprises the following components: the temporary storage of dangerous chemicals, the compressed air system, the oxygen-nitrogen separation system and the nitrogen storage tank are sequentially connected in series through a plurality of sections of pipelines, and the temporary storage of dangerous chemicals further comprises: the oxygen-enriched storage tank is connected with the oxygen-nitrogen separation system in series through a pipeline and is used for storing oxygen separated from the oxygen-nitrogen separation system, in daily use, through the technical scheme, the oxygen filtered by the oxygen-nitrogen separation system from compressed air can be stored through the arrangement of the oxygen-enriched storage tank, and the stored oxygen can be utilized for the second time.

Description

Automatic nitrogen protection device of dangerous chemical temporary storage warehouse

Technical Field

The utility model relates to an automatic nitrogen protection device for a temporary storage warehouse of dangerous chemicals.

Background

The dangerous chemical warehouse is a place for storing dangerous chemicals, and once a fire disaster occurs, serious accidents are caused, so that huge economic losses are caused, and the dangerous chemical warehouse has great influence on various aspects of society and serious consequences.

The existing dangerous chemical warehouse is provided with a fire protection system, which can prevent fire and extinguish fire, for example, a nitrogen fire protection system for activated carbon analysis, which is disclosed in patent No. CN212395659U, and comprises an air compression purification system for providing compressed air, a compressed air storage system for storing compressed air, an oxygen-nitrogen separation system for providing nitrogen, a nitrogen storage system for realizing nitrogen buffering, an electromagnetic valve for controlling the circulation and closing of a nitrogen pipeline, an activated carbon tank of a generating device for activated carbon combustion, a thermal resistor for detecting the temperature of the activated carbon, and an air valve for controlling the circulation and closing of air; when the thermal resistor in the nitrogen fire extinguishing system detects that the temperature of the activated carbon in the activated carbon box is higher than the desorption temperature set by the system, and the activated carbon in the box is smoldered or catches fire, the air valve on the pipeline is switched from a closed state to an open state.

This embodiment can guarantee that nitrogen gas circulation enters into the active carbon incasement, and a large amount of nitrogen gas flows into the box constantly all the time, can make the oxygen in the box be driven out the box fast and empty, and the combustion reaction reaches and ends, realizes the function of putting out a fire, but its defect that exists has:

1. the nitrogen fire-fighting system is singly used, and nitrogen fire extinguishing is wasteful for small occasions.

Disclosure of Invention

The utility model aims to solve one of the technical problems existing in the prior art.

The utility model provides an automatic nitrogen protection device for a temporary storage warehouse of dangerous chemicals, which comprises the following components: the temporary storage of dangerous chemicals, the compressed air system, the oxygen-nitrogen separation system and the nitrogen storage tank are sequentially connected in series through a plurality of sections of pipelines, and the temporary storage of dangerous chemicals further comprises:

and the oxygen-enriched storage tank is connected with the oxygen-nitrogen separation system in series through a pipeline and is used for storing oxygen separated from the oxygen-nitrogen separation system.

The oxygen in the oxygen-enriched storage tank can be used for sewage treatment and oxygen-enriched combustion supporting.

The compressed air system further comprises:

an air compressor for compressing air;

an air tank for storing compressed air;

a cold dryer for lowering the dew point of the compressed air.

And the manual valves are respectively arranged on each section of pipeline at the front ends of the storage tank, the cold dryer, the oxygen-nitrogen separation system and the hazardous chemical temporary storage warehouse and are used for changing the gas flow direction in each section of pipeline.

And the check valves are respectively arranged on the pipelines at the front ends of the storage tank, the nitrogen storage tank and the oxygen-enriched storage tank and are used for preventing gas in the pipelines from flowing back.

And the control valves are respectively arranged on each section of pipeline at the front ends of the oxygen-nitrogen separation system, the nitrogen storage tank, the oxygen-enriched storage tank and the hazardous chemical substance temporary storage warehouse and are used for controlling the circulation and closing of each section of pipeline.

The blowdown valves are respectively arranged at the lower ends of the oxygen-enriched storage tank and the nitrogen storage tank of the tank;

and the safety valves are respectively arranged at the upper ends of the oxygen-enriched storage tank and the nitrogen storage tank of the tank.

A temperature sensor arranged at the upper end of the hazardous chemical substance temporary storage;

a PLC control box;

an automatic water spray assembly, which operates through the setting of a PLC control box.

The automatic water spray assembly includes:

the spray pipe is fixedly arranged at the upper end of the dangerous chemical temporary storage;

and the spray nozzles are uniformly distributed at the lower end of the spray pipe.

A fire smoke alarm which is arranged on a temporary storage of dangerous chemicals.

The beneficial effects of the utility model are as follows:

1. through the arrangement of the oxygen-enriched storage tank, the oxygen filtered by the oxygen-nitrogen separation system from the compressed air can be stored, and the stored oxygen can be utilized for the second time;

2. through the setting of PLC control box, can receive temperature sensor's temperature signal, control the switch of shower.

Drawings

FIG. 1 is a schematic diagram of an automatic nitrogen protection device for a temporary storage of hazardous chemicals in an embodiment of the utility model;

fig. 2 is a cross-sectional view of an automatic water spray assembly in accordance with an embodiment of the present utility model.

Reference numerals

1-dangerous chemical temporary storage, 2-compressed air system, 3-oxygen nitrogen separation system, 4-nitrogen storage tank, 5-oxygen-enriched storage tank, 6-air compressor, 7-air storage tank, 8-cold dryer, 9-manual valve, 10-check valve, 11-control valve, 12-blow-down valve, 13-safety valve, 14-temperature sensor, 15-PLC control box, 16 automatic water spray assembly, 17-spray pipe, 18-nozzle, 19-fire smoke alarm, 20-pipeline.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present utility model, fall within the scope of protection of the present utility model.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The server provided by the embodiment of the utility model is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, the embodiment of the utility model provides an automatic nitrogen protection device for a temporary storage warehouse 1 of dangerous chemicals, comprising: the temporary storage 1 of dangerous chemicals, the compressed air system 2, the oxygen nitrogen separation system 3 and the nitrogen storage tank 4, the compressed air system 2, the oxygen nitrogen separation system 3, the nitrogen storage tank 4 and the temporary storage 1 of dangerous chemicals are connected in series in sequence through the multi-section pipeline 20, and the temporary storage further comprises: an oxygen-enriched tank 5 connected in series with the oxygen-nitrogen separation system 3 through a pipe 20 for storing oxygen separated from the oxygen-nitrogen separation system 3; the oxygen in the oxygen-enriched storage tank 5 can be used for sewage treatment and oxygen-enriched combustion supporting; the compressed air system 2 further comprises: an air compressor 6 for compressing air; a gas tank 7 for storing compressed air; a cold dryer 8 for lowering the dew point of the compressed air.

Further, a plurality of manual valves 9 are respectively arranged on each section of pipeline 20 at the front ends of the gas storage tank 7, the cold dryer 8, the oxygen-nitrogen separation system 3 and the hazardous chemical temporary storage 1, and are used for changing the gas flow direction in each section of pipeline 20; a plurality of check valves 10 respectively provided on each section of the pipe 20 at the front ends of the gas tank 7, the nitrogen storage tank 4 and the oxygen-enriched storage tank 5 for preventing the gas in each section of the pipe 20 from flowing back; the control valves 11 are respectively arranged on the pipelines 20 at the front ends of the oxygen-nitrogen separation system 3, the nitrogen storage tank 4, the oxygen-enriched storage tank 5 and the hazardous chemical temporary storage 1 and are used for controlling the circulation and closing of the pipelines 20 at each section; a plurality of blow-down valves 12 respectively arranged at the lower ends of the oxygen-enriched storage tank and the tank nitrogen storage tank 4; and a plurality of safety valves 13 are respectively arranged at the upper ends of the oxygen-enriched storage tank and the tank nitrogen storage tank 4.

In this embodiment of the present utility model, since the above-described structure is adopted, an automatic nitrogen protection device for a temporary hazardous chemical substance storage warehouse 1 is a device obtained by sequentially connecting a compressed air system 2, an oxygen-nitrogen separation system 3, a nitrogen storage tank 4 and the temporary hazardous chemical substance storage warehouse 1 in series through a plurality of sections of pipes 20, wherein the compressed air system 2 is a device for manufacturing and purifying compressed air, and the compressed air system 2 comprises: the air compressor 6, the air storage tank 7 and the cold dryer 8 are sequentially connected through a pipeline 20, the air compressor 6, the air storage tank 7 and the cold dryer 8 compress air, the air storage tank 7 stores compressed air, compressed air in the air storage tank 7 is transported into the cold dryer 8 through the pipeline 20 to be frozen and dried, the compressed air is prevented from being wet, the compressed air is filtered by the oxygen-nitrogen separation system 3 to discharge oxygen and nitrogen, the nitrogen is transported into the nitrogen storage tank 4 through the pipeline 20, the nitrogen can be transported into the hazardous chemicals temporary storage warehouse 1 through the pipeline 20, the nitrogen and oxygen-nitrogen separation system 3 is also connected with the oxygen-enriched storage tank 5 in series, the oxygen-enriched storage tank 5 is used for storing oxygen separated from the oxygen-nitrogen separation system 3, the oxygen in the oxygen-enriched storage tank 5 can be used for a boiler and an oven combustion-supporting system, sewage explosion gas purification treatment and the like, and the membrane separation oxygen-enriched combustion-supporting boiler has high benefits after testing: can save energy by 10 percent and reduce emission by 30 percent. The manual valve 9 is arranged on the pipelines 20 connected in series among the air compressor 6, the air storage tank 7, the cold dryer 8 and the oxygen-nitrogen separation system 3, the arrangement of the manual valve 9 can manually change the gas flowing direction in each pipeline 20, the check valve 10 is arranged on each pipeline 20 at the front ends of the air storage tank 7, the nitrogen storage tank 4 and the oxygen-enriched storage tank 5, the check valve 10 can prevent the gas in each pipeline 20 from flowing back, the air storage tank 7, the nitrogen storage tank 4 and the oxygen-enriched storage tank 5 have the function of saving, therefore, the check valve 10 is arranged at the front end to avoid the waste of the gas flowing back, the system comprises an oxygen-nitrogen separation system 3, a nitrogen storage tank 4, an oxygen-enriched storage tank 5 and a hazardous chemical temporary storage tank 1, wherein control valves 11 are arranged on all sections of pipelines 20 at the front end of the oxygen-enriched storage tank 1, the control valves 11 can control the circulation and closing of all sections of pipelines 20, blow-down valves 12 are arranged at the lower ends of the oxygen-enriched storage tank and the nitrogen storage tank 4, the blow-down valves 12 are used for discharging dirt, safety valves 13 are arranged at the upper ends of the oxygen-enriched storage tank and the nitrogen storage tank 4, the safety valves 13 are used for opening when the pressure of the system exceeds a specified value, and part of gas/fluid in the system is discharged outside the atmosphere/pipelines 20, so that the pressure of the system does not exceed an allowable value, and accidents caused by the excessive pressure of the system are avoided.

Operation sequence: in order to prevent the dangerous chemical temporary storage 1 from being in a fire disaster, the upper end of the dangerous chemical temporary storage 1 is connected with a fire extinguishing system, the fire extinguishing system is mainly used for extinguishing a fire through nitrogen, nitrogen is generated by filtering original compressed air, the air is compressed through an air compressor 6, the obtained compressed air is transported into an air storage tank 7 through a pipeline 20, a check valve 10 is required to be screwed to prevent gas backflow after the transportation is completed, the compressed air is transported into a cold dryer 8 from the air storage tank 7, the dew point of the compressed air is reduced by the cold dryer 8, the dryness of the compressed air is ensured, the compressed air is transported into an oxygen-nitrogen separation system 3 through a pipeline 20, the compressed air is filtered into partial oxygen and partial nitrogen by the oxygen-nitrogen separation system 3, the separated nitrogen is transported into a nitrogen storage tank 4 through the pipeline 20, the nitrogen storage tank 4 is connected with the interior of the dangerous chemical temporary storage 1 through the pipeline 20, and when the dangerous chemical temporary storage 1 is in a fire disaster occurs, the nitrogen in the nitrogen storage tank 4 is required to flow into the dangerous chemical temporary storage 1 through a manual valve 9 and a control valve 11, and a large amount of nitrogen is required to fill the space for the fire, the oxygen concentration in the dangerous chemical temporary storage 1 is reduced, and the purpose of extinguishing the fire is achieved.

Example 2:

as shown in fig. 1 and 2, in this embodiment, in addition to the structural features of the foregoing embodiment, the present embodiment further includes: a temperature sensor 14 provided at the upper end of the hazardous chemical substance temporary storage 1; a PLC control box 15; an automatic water spray assembly 16 which operates by the setting of the PLC control box 15; the automatic water spray assembly 16 includes: the spray pipe 17 is fixedly arranged at the upper end of the hazardous chemical substance temporary storage warehouse 1; and a plurality of nozzles 18 uniformly distributed at the lower end of the shower pipe 17.

In this embodiment of the present utility model, since the above-mentioned structure is adopted, the temperature sensor 14 is disposed at the upper end of the hazardous chemical substance temporary storage device 1, the temperature sensor 14 is connected with the PLC control box 15, the benign temperature range value is disposed inside the PLC control box 15, when the temperature sensor 14 detects an abnormal temperature signal exceeding the range value in the environment, the temperature signal is converted into a digital signal by the temperature sensor 14 and is electrically transmitted to the PLC control box 15, the PLC control box 15 is connected with the automatic water spray assembly 16, and when the temperature signal exceeds the set value, the PLC control box 15 starts the automatic water spray assembly 16 to spray water, the automatic water spray assembly 16 comprises: the spray pipe 17 and a plurality of nozzle 18, the spray pipe 17 sets up the upper end in the inside of dangerous chemicals temporary storage 1, a plurality of nozzle 18 become equidistant distribution in the lower extreme of spray pipe 17, and nozzle 18 carries out automatic spraying to the inside of dangerous chemicals temporary storage 1, effectually puts out a fire the effect of smoke abatement, with nitrogen filling fire extinguishing as the main part, water sprays the fire extinguishing as assisting, the double-channel insurance can deal with different inflammable warehouse, and the fire extinguishing mode can be manually preset.

Example 3:

as shown in fig. 1, in this embodiment, in addition to including the structural features of the foregoing embodiment, the present embodiment further includes: a fire smoke alarm 19 provided on the hazardous chemical temporary storage 1.

In this embodiment of the present utility model, since the above-mentioned structure is adopted, the fire smoke alarm 19 is provided on the hazardous chemical substance temporary storage 1, and when the temperature in the hazardous chemical temporary storage 1 is too high to cause a fire, smoke generated by the fire is detected by the fire smoke alarm 19, and the fire smoke alarm 19 gives an alarm to remind a worker to check the situation in the hazardous chemical temporary storage 1 in time.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims

1. The utility model provides an automatic nitrogen protection device of storehouse is kept in to danger article, includes temporary storehouse of danger article (1), compressed air system (2), oxygen nitrogen piece-rate system (3) and nitrogen storage tank (4), its characterized in that, compressed air system (2), oxygen nitrogen piece-rate system (3), nitrogen storage tank (4) and temporary storehouse of danger article (1) are established ties through multistage pipeline (20) in proper order, still include:

an oxygen-enriched storage tank (5) connected in series with the oxygen-nitrogen separation system (3) through a pipe (20) for storing oxygen separated from the oxygen-nitrogen separation system (3).

2. The automatic nitrogen protection device of a hazardous chemical substance temporary storage warehouse of claim 1, wherein: the oxygen in the oxygen-enriched storage tank (5) can be used for sewage treatment and oxygen-enriched combustion supporting.

3. An automatic nitrogen protection device for a temporary storage of hazardous chemicals according to claim 1, characterized in that the compressed air system (2) further comprises:

an air compressor (6) for compressing air;

a gas tank (7) for storing compressed air;

a cold dryer (8) for lowering the dew point of the compressed air.

4. The automated nitrogen protection device for a hazardous chemical buffer store of claim 3, further comprising:

and the manual valves (9) are respectively arranged on each section of pipeline (20) at the front ends of the air storage tank (7), the cold dryer (8), the oxygen-nitrogen separation system (3) and the hazardous chemical substance temporary storage warehouse (1) and are used for changing the gas flow direction in each section of pipeline (20).

5. The automated nitrogen protection device for a hazardous chemical buffer store of claim 3, further comprising:

and a plurality of check valves (10) which are respectively arranged on each section of pipeline (20) at the front ends of the gas storage tank (7), the nitrogen storage tank (4) and the oxygen-enriched storage tank (5) and are used for preventing the gas in each section of pipeline (20) from flowing back.

6. The automated nitrogen protection device for a hazardous chemical buffer store of claim 2, further comprising:

and the control valves (11) are respectively arranged on each section of pipeline (20) at the front ends of the oxygen-nitrogen separation system (3), the nitrogen storage tank (4), the oxygen-enriched storage tank (5) and the hazardous chemical substance temporary storage warehouse (1) and are used for controlling the circulation and closing of each section of pipeline (20).

7. The automated nitrogen protection device for a hazardous chemical buffer store of claim 1, further comprising:

a plurality of blow-down valves (12) which are respectively arranged at the lower ends of the oxygen-enriched storage tank (5) and the tank nitrogen storage tank (4);

and a plurality of safety valves (13) which are respectively arranged at the upper ends of the oxygen-enriched storage tank (5) and the tank nitrogen storage tank (4).

8. The automated nitrogen protection device for a hazardous chemical buffer store of claim 1, further comprising:

a temperature sensor (14) which is provided at the upper end of the hazardous chemical substance temporary storage library (1);

a PLC control box (15);

an automatic water spray assembly (16) which operates by the arrangement of the PLC control box (15).

9. The automated nitrogen protection device of a hazardous chemical buffer store according to claim 8, wherein the automated water spray assembly (16) comprises:

the spray pipe (17) is fixedly arranged at the upper end of the hazardous chemical substance temporary storage warehouse (1);

and a plurality of nozzles (18) which are uniformly distributed at the lower end of the spray pipe (17).

10. The automated nitrogen protection device for a hazardous chemical buffer store of claim 1, further comprising:

and a fire smoke alarm (19) which is arranged on the hazardous chemical substance temporary storage (1).