CN218056726U

CN218056726U - Dedicated fire prevention type storage tank of petrochemical

Info

Publication number: CN218056726U
Application number: CN202221061822.7U
Authority: CN
Inventors: 何洪星
Original assignee: Fujian Petrochemical Industry Design Institute Co ltd
Current assignee: Fujian Petrochemical Industry Design Institute Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-12-16
Anticipated expiration: 2032-05-06

Abstract

The utility model belongs to the technical field of petrochemical storage tank technique and specifically relates to a dedicated fire prevention type storage tank of petrochemical, including a jar body, jar internal portion is provided with annular intake pipe. Through set up annular intake pipe on jar internal portion roof, when the switch valve of carbon dioxide holding vessel was opened, in the leading-in annular intake pipe of carbon dioxide, water conservancy diversion downwards along the cooling tube, can carry out high-efficient cooling to the oil material of jar internal portion, reduce oil material temperature, avoid oil material spontaneous combustion under high temperature, the cooling tube bottom is provided with the air nozzle that stretches out outside the jar body, carbon dioxide through the jar body is spout from the air nozzle, because carbon dioxide density is greater than the air, can form the air bed of fire prevention on ground, restrain stretching of intensity of a fire, play the effect that certain cooling suppressed fire simultaneously, this jar body, can play good fire-resistant effect when the conflagration breaing out, and simultaneously, usable carbon dioxide reduces the temperature of oil material, carry out carbon dioxide jet-gas around the jar body simultaneously, prevent that the intensity of a fire from stretching.

Description

Dedicated fire prevention type storage tank of petrochemical

Technical Field

The utility model relates to a petrochemical storage tank technical field specifically is a dedicated fire prevention type storage tank of petrochemical.

Background

Petrochemical industry, petrochemical for short. Generally refers to the chemical industry where petroleum and natural gas are used as raw materials. The range is wide and the products are many. The raw oil is cracked, reformed and separated to provide basic raw materials, such as ethylene, propylene, butylene, butadiene, benzene, toluene, xylene, naphthalene and the like, and the raw materials are required to be stored after or before processing, which is common in the market, so that the petrochemical material storage tank has general fireproof performance, when the petrochemical material is burnt, the petrochemical material inside is heated, especially the combustible material with strong volatility, and is easy to spontaneously combust or even explode after being heated, and the fireproof storage tank special for the petrochemical industry is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dedicated fire prevention type storage tank of petrochemical, through set up annular intake pipe on the internal portion roof of jar, when the switch valve of carbon dioxide holding vessel was opened, in the leading-in annular intake pipe of carbon dioxide, guide flow downwards along the cooling tube, can carry out high-efficient cooling to the internal portion of jar's petroleum material, reduce petroleum material temperature, avoid petroleum material spontaneous combustion under high temperature, the cooling tube bottom is provided with the air nozzle of stretching out the external jar, carbon dioxide through the jar body is followed the air nozzle blowout, because carbon dioxide density is greater than the air, can form the air bed of fire prevention on ground, restrain stretching of intensity of a fire, play certain cooling simultaneously and press down the effect of fire, this jar of body, can play good fire-resistant effect when the conflagration breaing out, and simultaneously, the usable temperature that reduces petroleum material of carbon dioxide, simultaneously to carrying out carbon dioxide gas injection around the jar body, prevent that the intensity of a fire from stretching, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a special fire prevention type storage tank of petrochemical includes:

the cooling mechanism is arranged in the tank body;

the cooling mechanism comprises an annular air inlet pipe arranged on a top plate in the tank body, a plurality of groups of cooling pipes extending downwards to the bottom of the tank body are arranged on the annular air inlet pipe, and an air nozzle extending outwards from the side wall of the tank body is arranged at the bottom of each cooling pipe;

the gas supply mechanism comprises an equipment box arranged on a left side panel of the tank body and a carbon dioxide storage tank arranged on a bottom plate inside the equipment box, an air supply pipe of the carbon dioxide storage tank extends into the tank body and is connected with the annular air inlet pipe, and a switch valve is arranged on the air supply pipe of the carbon dioxide storage tank.

As a preferred scheme, the air nozzle is provided with a high-temperature-resistant one-way valve, and the opening of the air nozzle inclines downwards and outwards.

As an optimal scheme, the jar body includes shell, inner shell, rock wool heat preservation and inorganic heat preservation mortar layer, and inner shell surface parcel rock wool heat preservation, the shell setting is in the rock wool heat preservation outside, and inorganic heat preservation mortar layer is filled in the intermediate layer between shell and rock wool heat preservation.

As an optimal scheme, the outer shell and the inner shell are both of stainless steel tank structures, the cooling pipe is a stainless steel pipe, and the cooling pipe penetrates through the outer shell and the inner shell and then extends out of the tank body and is welded with the outer shell and the inner shell in a sealing mode.

As a preferred scheme, the top of the tank body is provided with a feed port and a discharge port, and the feed port and the discharge port are provided with sealing end covers.

As a preferred scheme, be provided with the control box on the left side inner wall of equipment box, be provided with relay group on the inside bottom plate of control box, be provided with the PLC controller on the left side inner wall of control box, relay group includes two sets of relays, and the control signal incoming end of each group of relay passes through the control signal output of signal connection PLC controller in the relay group.

As a preferred scheme, an alarm is fixedly arranged on a front side panel of the equipment box, and an electric energy access end of the alarm is connected with a corresponding relay in the relay group through a lead.

Preferably, the electric energy input end of the switch valve is connected with a corresponding relay in the relay group through a lead.

As a preferred scheme, a bottom plate of the equipment box is provided with a smoke sensor, and a signal output end of the smoke sensor is connected with a signal input end of the PLC through an electric signal.

By the foregoing the utility model provides a technical scheme can see out, the utility model provides a pair of dedicated fire prevention type storage tank of petrochemical, beneficial effect is:

1. by arranging the annular air inlet pipe on the top plate in the tank body, when a switch valve of the carbon dioxide storage tank is opened, carbon dioxide is introduced into the annular air inlet pipe and flows downwards along the cooling pipe, so that the petroleum material in the tank body can be efficiently cooled, the temperature of the petroleum material is reduced, and the petroleum material is prevented from spontaneous combustion at high temperature;

2. the cooling tube bottom is provided with the air nozzle that stretches out the external tank body, and carbon dioxide through the jar body is followed the air nozzle blowout, because carbon dioxide density is greater than the air, can form the air bed of fire prevention on ground, suppresses stretching of intensity of a fire, plays the effect of certain cooling simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of a fireproof storage tank for petrochemical engineering;

FIG. 2 is a schematic cross-sectional view of the fireproof storage tank for petrochemical engineering of the present invention;

fig. 3 is the utility model relates to a dedicated fire prevention type storage tank control box inner structure schematic diagram of petrochemical.

In the figure: 1. a tank body; 11. a material inlet and a material outlet; 12. sealing the end cap; 13. a housing; 14. an inner shell; 15. a rock wool heat-insulating layer; 16. an inorganic heat-insulating mortar layer; 2. an annular air inlet pipe; 21. a cooling tube; 22. an air nozzle; 23. a high temperature resistant check valve; 3. an equipment box; 31. a carbon dioxide storage tank; 32. a gas supply pipe; 33. an on-off valve; 4. an alarm; 5. a control box; 51. a relay group; 52. a PLC controller; 53. a smoke sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.

As shown in fig. 1-3, the embodiment of the utility model provides a dedicated fire prevention type storage tank of petrochemical, include:

the tank body 1 is internally provided with a cooling mechanism;

the cooling mechanism comprises an annular air inlet pipe 2 arranged on a top plate in the tank body 1, a plurality of groups of cooling pipes 21 extending downwards to the bottom of the tank body 1 are arranged on the annular air inlet pipe 2, an air nozzle 22 extending outwards from the side wall of the tank body 1 is arranged at the bottom of the cooling pipe 21, a high-temperature-resistant one-way valve 23 is arranged on the air nozzle 22, and an opening of the air nozzle 22 inclines downwards and outwards;

the gas supply mechanism comprises an equipment box 3 arranged on a left side panel of the tank body 1 and a carbon dioxide storage tank 31 arranged on a bottom plate in the equipment box 3, a gas supply pipe 32 of the carbon dioxide storage tank 31 extends into the tank body 1 and is connected with the annular gas inlet pipe 2, and a switch valve 33 is arranged on the gas supply pipe 32 of the carbon dioxide storage tank 31.

Among the above-mentioned device, jar body 1 includes shell 13, inner shell 14, rock wool heat preservation 15 and inorganic heat preservation mortar layer 16, and inner shell 14 surface parcel rock wool heat preservation 15, shell 13 set up in the rock wool heat preservation 15 outside, and inorganic heat preservation mortar layer 16 is filled in the intermediate layer between shell 13 and rock wool heat preservation 15.

In the above device, the outer shell 13 and the inner shell 14 are both of stainless steel tank structures, the cooling pipe 21 is a stainless steel pipe, and the cooling pipe 21 penetrates through the outer shell 13 and the inner shell 14, then extends out of the tank 1, and is hermetically welded with the outer shell 13 and the inner shell 14.

In the device, the top of the tank body 1 is provided with a feed and discharge port 11, and the feed and discharge port 11 is provided with a sealing end cover 12.

In the above-mentioned device, be provided with control box 5 on the left side inner wall of equipment box 3, be provided with relay group 51 on the inside bottom plate of control box 5, be provided with PLC controller 52 on the left side inner wall of control box 5, relay group 51 includes two sets of relays, the control signal incoming end of each group relay passes through the control signal output part of signal connection PLC controller 52 among relay group 51, the electric energy incoming end of ooff valve 33 passes through the relay that corresponds among the wire connection relay group 51, be provided with smoke transducer 53 on the bottom plate of equipment box 3, the signal output part of smoke transducer 53 passes through the signal input part of signal connection PLC controller 52.

In the above device, the front panel of the equipment box 3 is fixedly provided with the alarm 4, and the electric energy access end of the alarm 4 is connected with the corresponding relay in the relay group 51 through a lead.

The embodiments of the present invention will be described in further detail below with reference to the attached drawings:

referring to fig. 1-3, including jar body 1, be provided with annular intake pipe 2 on the roof inside jar body 1, be provided with several groups cooling tube 21 that downwardly extends to jar body 1 bottom on the annular intake pipe 2, cooling tube 21 bottom is provided with the air nozzle 22 that outwards stretches out from jar body 1 lateral wall, be provided with high temperature resistant check valve 23 on the air nozzle 22, air nozzle 22 opening is outwards leaned out downwards, be provided with equipment box 3 on jar body 1 left side panel, be provided with carbon dioxide storage tank 31 on the inside bottom plate of equipment box 3, the air supply pipe 32 of carbon dioxide storage tank 31 stretches into jar body 1 and is connected with annular intake pipe 2, be provided with ooff valve 33 on the air supply pipe 32 of carbon dioxide storage tank 31, be provided with control box 5 on the left side inner wall of equipment box 3, be provided with relay set 51 on the inside bottom plate of control box 5, be provided with PLC controller 52 on the left side inner wall of control box 5, relay set 51 includes two sets of relays, the control signal incoming end of each set of relay set in relay set 51 passes through the control signal output of signal connection PLC controller 52 of electric signal of relay set 53 in the relay set 51, the smoke sensor set passes through the electric energy access of wire connector set of relay set 51, smoke sensor 53, smoke sensor connects the smoke sensor output of smoke sensor 53.

Wherein, jar body 1 includes shell 13, inner shell 14, rock wool heat preservation 15 and inorganic heat preservation mortar layer 16, inner shell 14 surface parcel rock wool heat preservation 15, shell 13 sets up in the rock wool heat preservation 15 outside, inorganic heat preservation mortar layer 16 is filled in the intermediate layer between shell 13 and rock wool heat preservation 15, through using shell 13 and inner shell 14 as jar body 1's foundation structure, and set up rock wool heat preservation 15 and inorganic heat preservation mortar layer 16 between shell 13 and inner shell 14, make jar body 1 possess good thermal-insulated fire resistance.

Wherein, outer shell 13 and inner shell 14 are stainless steel's jar body structure, and cooling tube 21 is the stainless steel pipe, and cooling tube 21 runs through and stretches out jar body 1 outside and with outer shell 13 and inner shell 14 sealing weld behind outer shell 13 and the inner shell 14, plays good sealed effect.

Wherein, the top of the tank body 1 is provided with a feed inlet 11 and a discharge outlet 11, and the feed inlet 11 is provided with a sealing end cover 12.

Wherein, the front panel of the equipment box 3 is fixedly provided with an alarm 4, and the electric energy access end of the alarm 4 is connected with a corresponding relay in the relay group 51 through a lead;

specifically, when the smoke sensor 53 detects fire information, the information is transmitted to the PLC 52, the PLC 52 controls two sets of relays in the relay group 51 to be electrified simultaneously, so that the alarm 4 and the switch valve 33 are electrified simultaneously to operate, the carbon dioxide storage tank 31 fills carbon dioxide into the annular air inlet pipe 2 when the switch valve 33 is opened, carbon dioxide gas is sprayed around the tank 1 while materials in the tank 1 are cooled, and the alarm 4 gives an alarm when the switch valve is electrified;

the carbon dioxide in the carbon dioxide storage tank 31 is liquid carbon dioxide.

The working principle of the embodiment is as follows: through set up annular intake pipe on jar internal portion roof, when the switch valve of carbon dioxide holding vessel was opened, in the leading-in annular intake pipe of carbon dioxide, water conservancy diversion downwards along the cooling tube, can carry out high-efficient cooling to the oil material of jar internal portion, reduce oil material temperature, avoid oil material spontaneous combustion under high temperature, the cooling tube bottom is provided with the air nozzle that stretches out jar external, carbon dioxide through the jar body is from the air nozzle blowout, because carbon dioxide density is greater than the air, can form the air bed of fire prevention on ground, suppress stretching of intensity of a fire, play the effect of certain cooling simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dedicated fire prevention type storage tank of petrochemical which characterized in that: the method comprises the following steps:

the tank body (1), wherein a cooling mechanism is arranged in the tank body (1);

the cooling mechanism comprises an annular air inlet pipe (2) arranged on a top plate in the tank body (1), a plurality of groups of cooling pipes (21) extending downwards to the bottom of the tank body (1) are arranged on the annular air inlet pipe (2), and an air nozzle (22) extending outwards from the side wall of the tank body (1) is arranged at the bottom of each cooling pipe (21);

air feed mechanism, air feed mechanism includes carbon dioxide holding vessel (31) that sets up on equipment box (3) and the inside bottom plate of equipment box (3) that set up on the panel of the jar body (1) left side, the air supply pipe (32) of carbon dioxide holding vessel (31) stretch into in the jar body (1) and are connected with annular intake pipe (2), be provided with ooff valve (33) on air supply pipe (32) of carbon dioxide holding vessel (31).

2. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: be provided with high temperature resistant check valve (23) on air nozzle (22), air nozzle (22) opening is outwards leaned out downwards.

3. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: the utility model discloses a heat preservation of rock wool, including jar body (1) including shell (13), inner shell (14), rock wool heat preservation (15) and inorganic heat preservation mortar layer (16), inner shell (14) surface parcel rock wool heat preservation (15), shell (13) set up in rock wool heat preservation (15) outside, inorganic heat preservation mortar layer (16) are filled in the intermediate layer between shell (13) and rock wool heat preservation (15).

4. The special fireproof storage tank for petrochemical engineering according to claim 3, wherein: outer shell (13) and inner shell (14) are stainless steel's jar body structure, cooling tube (21) are stainless steel pipe, stretch out jar body (1) outside and with outer shell (13) and inner shell (14) seal weld behind cooling tube (21) run through outer shell (13) and inner shell (14).

5. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: the tank is characterized in that a material inlet and outlet (11) is formed in the top of the tank body (1), and a sealing end cover (12) is arranged on the material inlet and outlet (11).

6. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: be provided with control box (5) on the left side inner wall of equipment box (3), be provided with relay group (51) on the inside bottom plate of control box (5), be provided with PLC controller (52) on the left side inner wall of control box (5), relay group (51) include two sets of relays, the control signal incoming end of each group's relay passes through the control signal output of signal connection PLC controller (52) in relay group (51).

7. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: the front side panel of the equipment box (3) is fixedly provided with an alarm (4), and the electric energy access end of the alarm (4) is connected with a corresponding relay in the relay group (51) through a lead.

8. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: and the electric energy access end of the switch valve (33) is connected with a corresponding relay in the relay group (51) through a lead.

9. The special fireproof storage tank for petrochemical engineering according to claim 1, wherein: a smoke sensor (53) is arranged on a bottom plate of the equipment box (3), and a signal output end of the smoke sensor (53) is connected with a signal input end of the PLC (52) through an electric signal.