Safe anti-explosion methanol tower top reflux storage device

Abstract

The utility model relates to the technical field of storage devices, and discloses a safe anti-explosion methanol tower top reflux storage device which comprises a tank body, a pressure release valve is arranged on the outer wall of an exhaust pipe, a pressure detector is fixedly connected in the tank body, a spiral cooling pipe is arranged in a fixed cover, a cooling assembly is arranged on the fixed cover, and a pressure sensor is arranged on the outer wall of the spiral cooling pipe. The cooling assembly is used for cooling methanol steam entering the fixed cover through a spiral cooling pipe; through linkage of the pressure detector and the pressure release valve, pressure change in the tank body can be timely handled, explosion accidents caused by overlarge pressure are effectively prevented, chemical production safety is guaranteed, the spiral cooling pipe is matched with a cooling system formed by the suction pump and the water tank, methanol steam liquefaction is efficiently achieved, material waste is reduced, the production cost is reduced, and the production efficiency is improved. And the arrangement of the return pipe and the valve ensures that liquefied methanol smoothly flows back to the tank body, so that the cyclic utilization of methanol is realized, and the utilization rate of raw materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a storage device technical field, concretely is a kind of safe anti-explosion methanol overhead reflux storage device. BACKGROUND

[0002] In chemical production, methanol is widely used in many fields as an important basic chemical raw material. Its production process involves methanol overhead reflux storage link, and the safety of this link is crucial, and a safe anti-explosion methanol overhead reflux storage device emerges as the times require.

[0003] Application No. 202320573988.5 discloses a kind of methanol safety storage tank, increase one fire resistance type one-way breathing valve and one air pressure detector on storage tank top, can effectively prevent explosion caused by excessive tank internal air pressure and external fire will not affect liquid in tank body, increase two layers of hollow tank body outside storage tank, one fills activated carbon, activated carbon layer preliminary adsorbs evaporated methanol vapor and can keep dry, second tank body fills water, water adsorbs excess diffused methanol vapor, and water can effectively reduce tank body temperature, one methanol detector is respectively installed on the side of tank body upper and lower, can effectively detect methanol content in activated carbon and water, replace when reaching threshold value.

[0004] The above-mentioned device, when in use, the methanol vapor discharged from the second tank body cannot flow back to the inside of the second tank body. On the one hand, it is easy to cause material waste and increase production cost. On the other hand, when the methanol vapor is discharged outside the device, the methanol vapor has the characteristics of being flammable and explosive. Once it accumulates in the air to a certain concentration and meets a fire source or high temperature, it is easy to cause an explosion accident, which seriously threatens the safety of personnel life and property in chemical production. Therefore, we propose a safe anti-explosion methanol overhead reflux storage device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a safe anti-explosion methanol overhead reflux storage device, which solves the problem that the methanol vapor discharged from the second tank body cannot flow back to the inside of the second tank body when the above-mentioned device is in use. On the one hand, it is easy to cause material waste and increase production cost. On the other hand, when the methanol vapor is discharged outside the device, the methanol vapor has the characteristics of being flammable and explosive. Once it accumulates in the air to a certain concentration and meets a fire source or high temperature, it is easy to cause an explosion accident, which seriously threatens the safety of personnel life and property in chemical production.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a safe anti-explosion methanol tower top reflux storage device, including the jar body, the outer wall of the jar body top is fixed with the fixed cover, the top of fixed cover is connected with the top cap, the bottom of fixed cover is fixed with the exhaust pipe between the jar body top side wall, the outer wall of exhaust pipe is equipped with the pressure relief valve, the inside fixed connection of jar body is equipped with the pressure detector, the inside of fixed cover is equipped with the spiral cooling pipe, be equipped with cooling assembly on fixed cover, this cooling assembly carries out the cooling to the methanol vapor that enters fixed cover through spiral cooling pipe.

[0007] Preferably, the bottom of the fixed cover is fixedly communicated with the reflux pipe between the bottom side wall of the jar body, and a valve is installed on the reflux pipe.

[0008] Preferentially, the cooling assembly comprises a water tank, a pump and a communication pipe, the water tank is fixedly connected to the side wall of the jar body, the pump is fixedly connected to the side wall of the fixed cover, the communication pipe is fixedly communicated between the side wall of the water tank and the side wall of the pump, the spiral cooling pipe is fixedly sleeved at the top of the jar body and located in the inside of the fixed cover, the water inlet end of the spiral cooling pipe is fixedly communicated with the pump, and the water outlet end of the spiral cooling pipe is fixedly communicated with the water tank.

[0009] Preferentially, the bottom outer wall of the jar body is fixedly sleeved with a flange.

[0010] Preferentially, the side wall of the jar body is fixedly connected with an anti-explosion sheet.

[0011] Preferentially, the inside of the fixed cover is installed with activated carbon.

[0012] Preferentially, the inside of the fixed cover is installed with a water tank.

[0013] Compared with the prior art, the utility model provides a safe anti-explosion methanol tower top reflux storage device, which has the following advantages

[0014] Beneficial effects:

[0015] 1. The safe anti-explosion methanol tower top reflux storage device can timely respond to the pressure change in the jar body through the linkage of the pressure detector and the pressure relief valve, effectively prevent explosion accidents caused by excessive pressure, ensure the safety of chemical production, and realize the liquefaction of methanol vapor through the cooling system composed of the spiral cooling pipe, the pump and the water tank, thereby reducing material waste and production cost, avoiding direct discharge of methanol vapor to pollute the environment, ensuring the smooth reflux of liquefied methanol to the jar body, realizing the recycling of methanol, and improving the utilization rate of raw materials.

[0016] 2. The safe anti-explosion methanol tower top reflux storage device ensures safety in chemical production by using activated carbon and a water tank for double adsorption to maximize the adsorption of unliquefied methanol vapor and further reduce the risk of methanol vapor escaping. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the half-section structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the half-section structure of this utility model;

[0022] Figure 6 for Figure 5 A magnified view of part A in the diagram.

[0023] In the diagram: 1. Tank body; 2. Flange; 3. Return pipe; 4. Valve; 5. Exhaust pipe; 6. Pressure relief valve; 7. Fixing cover; 8. Top cover; 9. Explosion-proof plate; 11. Water tank; 12. Pump; 13. Connecting pipe; 14. Spiral cooling pipe; 15. Activated carbon; 16. Pressure detector; 17. Water tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6The application discloses a safe anti-explosion methanol tower top reflux storage device, which comprises a tank body 1, a fixed cover 7 fixedly arranged on the outer wall of the top end of the tank body 1, a top cover 8 fixedly connected to the top of the fixed cover 7, an exhaust pipe 5 fixedly and communicatively connected between the bottom of the fixed cover 7 and the side wall of the top end of the tank body 1, a pressure relief valve 6 mounted on the outer wall of the exhaust pipe 5, a pressure detector 16 fixedly connected in the tank body 1, a spiral cooling pipe 14 arranged in the fixed cover 7, and a cooling assembly arranged on the fixed cover 7 and used for cooling methanol vapor entering the fixed cover 7 through the spiral cooling pipe 14; when the pressure in the tank abnormally rises, the pressure relief valve 6 is opened, and the methanol vapor enters the fixed cover 7 through the exhaust pipe 5; the pressure detector 16 monitors the pressure in the tank in real time, provides data support for safe operation, and prepares for subsequent methanol vapor liquefaction through the spiral cooling pipe 14 and the cooling assembly; through linkage of the pressure detector 16 and the pressure relief valve 6, the device can timely respond to pressure change in the tank body 1, effectively prevents explosion accidents caused by excessive pressure, and guarantees the safety of chemical production.

[0026] A reflux pipe 3 is fixedly and communicatively connected between the bottom of the fixed cover 7 and the side wall of the bottom end of the tank body 1, and a valve 4 is mounted on the reflux pipe 3; in the methanol production process, the pressure detector 16 monitors the pressure on the inner wall of the tank body 1 in real time, and once the pressure is too large, the pressure relief valve 6 is automatically opened, at which time the methanol vapor rapidly enters the fixed cover 7 from the exhaust pipe 5.

[0027] The cooling assembly comprises a water tank 11, a pump 12 and a communication pipe 13, the water tank 11 is fixedly connected to the side wall of the tank body 1, the pump 12 is fixedly connected to the side wall of the fixed cover 7, the communication pipe 13 is fixedly and communicatively connected between the side wall of the water tank 11 and the side wall of the pump 12, the spiral cooling pipe 14 is fixedly arranged at the top end of the tank body 1 and located in the fixed cover 7, the water inlet end of the spiral cooling pipe 14 is fixedly and communicatively connected to the pump 12, and the water outlet end of the spiral cooling pipe 14 is fixedly and communicatively connected to the water tank 11; in the methanol production process, the pressure detector 16 monitors the pressure on the inner wall of the tank body 1 in real time, and once the pressure is too large, the pressure relief valve 6 is automatically opened, at which time the methanol vapor rapidly enters the fixed cover 7 from the exhaust pipe 5, and at the same time, the pump 12 is started to pump water in the water tank 11 into the spiral cooling pipe 14 through the communication pipe 13. The spiral cooling pipe 14 increases the contact area with the methanol vapor by virtue of the special spiral structure, and makes the methanol vapor liquefy by utilizing the low-temperature characteristics of water; the cooling system formed by the spiral cooling pipe 14, the pump 12 and the water tank 11 efficiently realizes methanol vapor liquefaction, reduces material waste and production cost, and avoids direct discharge of the methanol vapor to pollute the environment.

[0028] A flange 2 is fixedly arranged on the outer wall of the bottom end of the tank body 1; the device is stably installed on the top of the methanol tower by means of the flange 2, the connection is ensured to be compact, and basic guarantee is provided for subsequent operation.

[0029] The side wall of the tank body 1 is fixedly connected with an explosion-proof sheet 9; the explosion-proof sheet 9 serves as an additional safety barrier, when the pressure in the tank suddenly rises and the pressure relief valve 6 fails to timely and effectively release the pressure, the explosion-proof sheet 9 will break first, instantaneously releasing the excessive pressure in the tank, avoiding explosion of the tank body 1 due to overpressure, and maximizing the safety of personnel and equipment in the chemical production site.

[0030] The inside of the fixed cover 7 is provided with activated carbon 15; the inside of the fixed cover 7 is provided with a water tank 17; the activated carbon 15 in the inside of the fixed cover 7 preliminarily adsorbs the entering methanol vapor due to its porous structure, and the water in the water tank 17 further absorbs the excess methanol vapor, and the two work together to reduce the escape of methanol vapor.

[0031] Structure description:

[0032] Tank body 1: as the core main part of the whole device, used for storing methanol liquid, providing a stable containing space for methanol, its material has good corrosion resistance and sealing performance, which can effectively prevent methanol leakage and ensure the safety and stability of chemical production.

[0033] Flange 2: installed at the bottom end of the outer wall of the tank body 1, is the key component to realize the stable connection of the device and the top of the methanol tower. Through bolts and other connecting parts, the flange 2 can be tightly attached to the tower top interface, ensuring that the entire device is firmly installed, tightly sealed, and avoiding methanol leakage at the connection, creating conditions for the normal operation of the subsequent device.

[0034] Return pipe 3: fixedly connected between the bottom of the fixed cover 7 and the bottom end of the side wall of the tank body 1, is a dedicated channel for liquefied methanol return. After the methanol vapor is cooled and liquefied in the fixed cover 7, the return pipe 3 guides the liquid methanol to return to the tank body 1 smoothly by gravity, realizing the recycling of methanol and reducing material loss.

[0035] Valve 4: installed on the return pipe 3, plays a key role in controlling the return process. The operator can manually open or close the valve 4 according to the actual situation, such as the accumulation amount of liquefied methanol, to accurately control the methanol return, ensuring the flexibility and safety of the operation.

[0036] Exhaust pipe 5: connected to the bottom of the fixed cover 7 and the top end of the side wall of the tank body 1, is a channel for methanol vapor to exit the tank body 1. When the pressure in the tank is too high and the pressure relief valve 6 is opened, the methanol vapor quickly enters the fixed cover 7 through the exhaust pipe 5, opening the subsequent processing process and ensuring the pressure balance in the tank body 1.

[0037] Pressure relief valve 6: installed on the outer wall of the exhaust pipe 5, is an important valve to ensure the safety of the tank body 1. When the pressure detector 16 detects that the pressure on the inner wall of the tank body 1 exceeds the set safety value, the pressure relief valve 6 automatically opens, timely discharging the overpressure methanol vapor in the tank to the fixed cover 7, preventing the tank body 1 from exploding due to excessive pressure and other dangerous situations.

[0038] Fixed cover 7: Set in the outer wall of the top end of the tank body 1, as a multifunctional integrated space, contains components such as spiral cooling pipe 14, activated carbon 15, water tank 17, etc. It not only provides a place for the subsequent treatment of methanol vapor, but also plays a certain isolation and protection role to prevent methanol vapor from escaping to the outside environment.

[0039] Top cover 8: Fixedly connected to the top of the fixed cover 7, mainly plays the role of closing the top opening of the fixed cover 7, further enhances the sealing of the device, prevents methanol vapor and other impurities from entering or escaping, and ensures the stability of the internal environment of the device.

[0040] Explosion-proof sheet 9: Fixedly connected to the side wall of the tank body 1, it is the ultimate safety protection of the tank body 1. When the pressure in the tank rises suddenly and the pressure relief valve 6 fails to effectively release the pressure, the explosion-proof sheet 9 will instantaneously rupture, quickly releasing the excessive pressure in the tank, avoiding catastrophic explosion of the tank body 1, and maximizing the safety of surrounding personnel and equipment.

[0041] Water tank 11: Installed on the side wall of the tank body 1, as a water source storage component of the cooling system. It provides continuous and stable low-temperature water for the pump 12, which works together with the communication pipe 13 and the spiral cooling pipe 14 to achieve the cooling and liquefaction of methanol vapor, playing a key role in the whole methanol vapor treatment process.

[0042] Pump 12: Fixedly connected to the side wall of the fixed cover 7, it is the power core of the cooling system. It extracts and pressurizes the water in the water tank 11 through the communication pipe 13 and discharges it into the spiral cooling pipe 14 according to the device operation requirements, promotes the rapid flow of water in the cooling pipe, enhances the cooling effect, and ensures the efficient liquefaction of methanol vapor.

[0043] Communication pipe 13: Fixedly connected between the side wall of the water tank 11 and the side wall of the pump 12, it is the conveying pipe of the cooling water flow. It ensures that the water in the water tank 11 can be smoothly extracted and delivered to the spiral cooling pipe 14 by the pump 12, maintains the normal water circulation of the cooling system, and ensures the smooth progress of the methanol vapor cooling and liquefaction work.

[0044] Spiral cooling pipe 14: Fixedly set in the top end of the tank body 1 and located inside the fixed cover 7, with its unique spiral structure design, it greatly increases the contact area with methanol vapor. After the pump 12 injects low-temperature water, the spiral cooling pipe 14 uses the low-temperature characteristics of water to quickly liquefy the methanol vapor flowing through its outer surface, and is the key execution component of methanol vapor liquefaction.

[0045] Activated carbon 15: installed inside the fixed cover 7, using its own rich porous structure, preliminary adsorption of methanol vapor just into the fixed cover 7. It can effectively reduce the concentration of methanol vapor in the fixed cover 7, reduce the pressure of subsequent cooling and other adsorption treatment, and reduce the risk of methanol vapor dispersion.

[0046] Pressure detector 16: fixedly connected inside the tank body 1, is the "eyes" of the device operation. It monitors the pressure of the inner wall of the tank body 1 in real time, and feeds back the pressure data in real time. Once the pressure exceeds the safety threshold, the corresponding safety measures such as opening the pressure relief valve 6 are triggered immediately, so that the device is always in a safe operating state.

[0047] Water tank 17: installed inside the fixed cover 7, the water in it can further absorb the remaining methanol vapor after being adsorbed by the activated carbon 15. The water tank 17 and the activated carbon 15 complement each other to form a double adsorption guarantee, which can maximize the interception of methanol vapor and ensure that as little methanol vapor as possible is dispersed in the fixed cover 7, thereby maintaining the safety of the chemical production environment.

[0048] Usage

[0049] Firstly, the device is stably installed on the top of the methanol tower by using the flange 2, so as to ensure that the connection is tight and provide a foundation guarantee for subsequent operation. During the methanol production process, the pressure detector 16 monitors the pressure of the inner wall of the tank body 1 in real time. Once the pressure is too large, the pressure relief valve 6 is automatically opened. At this time, the methanol vapor rapidly enters the fixed cover 7 from the exhaust pipe 5. At the same time, the pump 12 is started, and the water in the water tank 11 is pumped into the spiral cooling pipe 14 through the communication pipe 13. The spiral cooling pipe 14 increases the contact area with the methanol vapor by virtue of its special spiral structure, and uses the low-temperature characteristics of water to make the methanol vapor liquefy when it is cooled. When the liquefied methanol reaches a certain amount, the valve 4 is opened, and the liquefied methanol flows back to the tank body 1 under the action of gravity, so that the methanol vapor can be effectively recovered. In addition, the activated carbon 15 in the fixed cover 7 preliminarily adsorbs the entering methanol vapor by virtue of its porous structure, and the water in the water tank 17 further absorbs the excess methanol vapor. The two work together to reduce the dispersion of methanol vapor.

[0050] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safe anti-explosion methanol overhead reflux storage device, comprising a tank body (1), a fixed cover (7) is fixedly sleeved on the outer wall of the top end of the tank body (1), and a top cover (8) is fixedly connected to the top of the fixed cover (7), characterized in that, Also include: The bottom of the fixed cover (7) and the top end of the tank body (1) side wall fixed communication exhaust pipe (5), the exhaust pipe (5) wall is installed with pressure relief valve (6), the tank body (1) inside fixed connection has pressure detector (16), the fixed cover (7) inside is equipped with spiral cooling pipe (14), the fixed cover (7) is equipped with cooling assembly, which is cooled by spiral cooling pipe (14) into the fixed cover (7) in methanol vapor cooling.

2. A safe anti-explosion methanol overhead reflux storage device according to claim 1, characterized in that: The bottom of the fixed cover (7) and the bottom end of the tank body (1) side wall fixed communication reflux pipe (3), the reflux pipe (3) is installed with valve (4).

3. A safe anti-explosion methanol overhead reflux storage device according to claim 1, characterized in that: The cooling assembly includes water tank (11), pump (12), communication pipe (13), the water tank (11) fixed connection is arranged in the tank body (1) side wall, the pump (12) fixed connection has fixed cover (7) side wall, the communication pipe (13) fixed communication is arranged between the water tank (11) side wall and the pump (12) side wall, the spiral cooling pipe (14) fixed sleeve is arranged in the tank body (1) top end and located in the fixed cover (7) inside, the spiral cooling pipe (14) water inlet end and the pump (12) fixed communication, the spiral cooling pipe (14) water outlet end and the water tank (11) fixed communication.

4. A safe anti-explosion methanol overhead reflux storage device according to claim 1, characterized in that: The bottom end of the tank body (1) outer wall is fixedly sleeved with flange (2).

5. A safe anti-explosion methanol overhead reflux storage device according to claim 1, characterized in that: The tank body (1) side wall is fixedly connected with the explosion-proof sheet (9).

6. A safe anti-explosion methanol overhead reflux storage device according to claim 1, characterized in that: The fixed cover (7) inside is installed with activated carbon (15).

7. A safe anti-explosion methanol overhead reflux storage device according to claim 6, characterized in that: The fixed cover (7) inside is installed with water tank (17).

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