Storage tank

Abstract

The utility model discloses a storage tank which comprises a tank bottom plate, a tank body welded above the tank bottom plate, a tank top plate welded at the top of the tank body in a conical shape, a maintenance platform arranged on the periphery of the tank body and close to one side of the tank top plate, and a ladder arranged on the periphery of the tank body and communicated with the maintenance platform and the tank top plate. By arranging a pressure balance port, an exhaust port and a breather valve inlet and outlet, pressure balance between the interior and the exterior of the storage tank is maintained; an emergency pressure relief opening and a fire extinguishing agent inlet are formed, so that the risk of explosion is reduced, fire extinguishing measures are taken quickly when a fire disaster occurs, and losses caused by accidents are reduced; nitrogen is injected into the tank body, liquid in the storage tank is isolated from air, and therefore the effect of preventing the liquid from being oxidized is achieved. Original static liquid is pumped out of the storage tank through the circulating pump and then injected into the storage tank again to form circular flow, and therefore sediment is avoided.

Description

Technical Field

[0001] The utility model relates to a storage tank. Background Art

[0002] A storage tank is a container used to store liquid, gas or solid particulate materials. It is widely used in many industries such as petroleum, chemical, grain, water treatment, and pharmaceuticals.

[0003] When storage tanks are used to store liquid products, some products tend to produce precipitation due to long-term static storage, which will lead to a decline in the overall quality and performance of the product; some products will undergo oxidation reactions when in long-term contact with air, which will cause the properties of the stored products to change and the quality to decline; at the same time, oxidation reactions are usually accompanied by an exothermic process, which will cause the temperature inside the storage tank to rise, and high temperatures may cause the combustible materials inside the storage tank to spontaneously combust, leading to a fire, and the increase in temperature will cause the internal pressure of the storage tank to increase, which may cause the tank to explode. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a storage tank that can effectively avoid oxidation and precipitation problems of stored liquid products, while effectively reducing the risk of explosion due to excessive pressure and quickly taking fire extinguishing measures in an emergency situation where the product spontaneously combusts.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A storage tank comprises a tank bottom plate, a tank body welded above the tank bottom plate, a tank top plate welded to the top of the tank body in a cone shape, a maintenance platform arranged on the outer periphery of the tank body and close to one side of the tank top plate, and a ladder arranged on the outer periphery of the tank body and connected to the maintenance platform and the tank top plate; a first pump outlet connected to an infusion pipe and used for a pump to extract liquid in the tank is arranged at the bottom of the tank bottom plate; the tank body comprises a second pump outlet arranged on one side close to the tank bottom plate and located directly above the first pump outlet, a thermometer port arranged above the second pump outlet, a first manhole arranged above the thermometer port for installation and maintenance personnel to enter the interior of the tank body, an inner reinforcement ring installed inside the tank body and used to reinforce the tank body, an outer reinforcement ring welded to the outside of the tank body and used to reinforce the tank body, an angle steel ring arranged on the top of the tank body and used to weld and fix the tank top plate, and a fire extinguishing agent inlet arranged below the angle steel ring and connected to a connecting pipe inside the tank body.

[0007] Preferably, the tank top plate is annularly distributed with a second manhole, an emergency pressure relief port, a pressure gauge port, a first liquid level gauge port, a spare port, a nitrogen inlet, a feed port, a pressure balance port, an exhaust port, a circulating pump port, a breathing valve inlet and outlet, and a second liquid level gauge port.

[0008] Preferably, the feed port and the circulation pump port are both connected with inner extension pipes extending into the interior of the tank body.

[0009] Preferably, the tank body is further provided with an embedded plate and a fixing frame for fixing the inner extension pipe.

[0010] Preferably, a tail lifting lug is provided on the outer side of the tank body near the tank bottom plate, and a top lifting lug is also provided near the tank top plate.

[0011] Preferably, reinforcing ribs are evenly arranged between the outer reinforcing ring and the tank body.

[0012] Preferably, the tank bottom plate is evenly provided with anchor bolt seats around the outer periphery of the tank body.

[0013] Preferably, a grounding plate is provided on the anchor bolt seat.

[0014] Preferably, the tank bottom plate is inclined toward the first pump outlet.

[0015] The beneficial effects of the utility model are:

[0016] The tank bottom plate tilted toward the pump outlet is conducive to the extraction and use of the liquid in the tank; the setting of the inner reinforcement ring, outer reinforcement ring, reinforcement ribs and angle steel ring can enhance the stability and carrying capacity of the storage tank; the setting of the pressure gauge port, liquid level gauge port and thermometer port can realize the real-time monitoring of the liquid level, temperature, pressure and other parameters in the tank; the design of the emergency pressure relief port can quickly reduce the pressure or release the harmful gas generated in the tank in an emergency situation to prevent the situation from further deteriorating; the setting of the fire extinguishing agent inlet can quickly take fire extinguishing measures in the emergency situation of spontaneous combustion inside the storage tank to reduce the losses caused by the accident; the setting of the pressure balance port, exhaust port and breathing valve inlet and outlet helps to maintain the pressure balance between the inside and outside of the storage tank and ensure the safe operation of the tank; and the setting of the nitrogen inlet allows nitrogen to enter the tank to isolate the liquid from the air, thereby preventing the oxidation of the liquid; the setting of the circulation pump port can realize the circulation treatment of the liquid in the tank, avoid precipitation, and maintain the quality and performance of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a storage tank embodiment of the utility model;

[0018] Figure 2 It is a top view of a schematic structural diagram of a storage tank embodiment of the utility model;

[0019] Figure 3 For this embodiment Figure 1 A partial enlarged view of the middle A;

[0020] Figure 4 For this embodiment Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 5 It is a partial enlarged view of the top lifting lug of a storage tank embodiment of the utility model;

[0022] Figure 6 This is a partial enlarged view of the outer reinforcement ring of a storage tank embodiment of the utility model;

[0023] Figure 7 This is a partial enlarged view of the anchor bolt seat of a storage tank embodiment of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Example

[0026] like Figure 1-5 As shown, a storage tank comprises a tank bottom plate 1, a tank body 2 welded on the top of the tank bottom plate 1, a tank top plate 3 welded to the top of the tank body 2 in a cone shape, a maintenance platform 4 arranged on the periphery of the tank body 2 and close to one side of the tank top plate 3, and a ladder 5 arranged on the periphery of the tank body 2 and connected to the maintenance platform 4 and the tank top plate 3; a first pump outlet 11 for connecting an infusion tube and used for a pump machine to extract liquid in the tank is arranged at the bottom of the tank bottom plate 1; the tank body 2 comprises a second pump outlet 21 arranged on one side close to the tank bottom plate 1 and located directly above the first pump outlet 11, a thermometer port 22 arranged above the second pump outlet 21, and a first manhole 23 arranged above the thermometer port 22 for installation and maintenance personnel to enter the interior of the tank body 2, and a manhole 23 installed on the tank An inner reinforcement ring 24 inside the tank body 2 for reinforcing the tank body 2, an outer reinforcement ring 25 welded to the outside of the tank body 2 for reinforcing the tank body 2, an angle steel ring 26 arranged on the top of the tank body 2 for welding and fixing the tank top plate 3, and a fire extinguishing agent inlet 27 arranged below the angle steel ring 26 and connected to a connecting pipe inside the tank body 2; a second manhole 31, an emergency pressure relief port 32, a pressure gauge port 33, a first liquid level gauge port 34, a spare port 35, a nitrogen inlet 36, a feed port 37, a pressure balance port 38, an exhaust port 39, a circulation pump port 310, a breathing valve inlet and outlet 311 and a second liquid level gauge port 312 are distributed in an annular manner on the tank top plate 3; the feed port 37 and the circulation pump port 310 are both connected with an inner extension pipe 6 extending to the inside of the tank body 2.

[0027] In this solution, the first pump outlet 11 arranged on the tank bottom plate 1 can be conveniently connected to the pump to extract the liquid in the storage tank, thereby improving the work efficiency. At the same time, the first pump outlet 11 is arranged at the bottom, so that the liquid in the tank can be extracted more thoroughly, reducing the residual liquid, which is beneficial to the subsequent maintenance and cleaning work; the setting of the second pump outlet 21 can more effectively divert and extract the liquid in the storage tank, thereby improving the liquid extraction efficiency; by installing a thermometer on the thermometer port 22, the temperature change of the liquid in the tank can be timely grasped so as to take appropriate safety measures to ensure the safety of the liquid in the tank; the setting of the first manhole and the second manhole is to facilitate the installation and maintenance personnel to enter the tank body 2 to carry out necessary inspections, repairs and cleaning work, thereby ensuring the normal operation and safety of the storage tank; the inner reinforcement ring 24 is annular and tightly attached to the tank body 2 The inner wall of the tank is installed, and an annular wall panel is also arranged on the outer periphery of the inner reinforcement ring 24, which can apply additional support force to the inside of the tank, enhance the structural strength of the tank body 2, thereby reducing the risk of deformation and rupture of the tank body 2 and ensuring the safety of the tank; the outer reinforcement ring 25 welded to the outer periphery of the tank body 2 can not only withstand the influence of internal pressure, temperature and liquid level factors, but also carry and disperse various external forces outside the tank body 2, thereby enhancing the structural strength of the tank body 2, and cooperating with the inner reinforcement ring 24 can effectively improve the reliability and service life of the tank; the angle steel ring 26 not only provides a support and fixing point for the welding of the tank top plate 3, but also can enhance the stability of the top and top plate structure of the tank body 2; when a fire occurs inside the tank, the fire extinguishing agent can be injected into the tank in time through the fire extinguishing agent inlet 27 for fire extinguishing, thereby effectively controlling and extinguishing the fire.

[0028] In the present solution, the emergency pressure relief port 32 is used to quickly reduce the pressure or release harmful gases when an emergency occurs in the storage tank. It is an emergency discharge channel for discharging gas, which can prevent the situation from further deteriorating. By installing a pressure gauge at the pressure gauge port 33, real-time monitoring of the internal pressure of the storage tank can be achieved, thereby ensuring the safe operation of the storage tank. When the pressure gauge detects that the internal pressure of the storage tank suddenly increases, opening the emergency pressure relief port 32 can quickly release the pressure accumulated in the tank, preventing the storage tank from exploding due to excessive pressure, thereby reducing the risk of accidents and protecting the surrounding environment and personnel safety. By providing the first liquid level gauge port 34 and the second liquid level gauge port 312, the liquid level gauge equipment can be easily installed. It is used to monitor the liquid level inside the tank body 2 in real time. By monitoring the liquid level, abnormal liquid level, such as leakage, overflow, etc., can be discovered in time, and corresponding measures can be taken to avoid accidents and ensure the safety of equipment and personnel; the role of the spare port 35 is to provide a reserved channel for the addition of other equipment or pipeline connections that may be needed in the future. The spare port 35 is usually an interface that is not needed temporarily, but can be flexibly adjusted and used according to specific needs in the later stage to adapt to possible future equipment updates or modifications; the main function of the nitrogen inlet 36 is to inject nitrogen into the storage tank from the outside. Nitrogen can not only isolate the liquid from the air, thereby preventing the liquid in the tank from oxidizing, but also reduce the storage The probability of the liquid in the tank catching fire is reduced, thereby reducing safety hazards; the feed port 37 is used to transport the liquid to the storage tank for storage; the pressure balance port 38 is used to balance the pressure inside and outside the tank body 2 to prevent deformation or rupture caused by the pressure difference inside and outside the tank. It is usually designed as a channel that can control the flow of gas, so that the gas inside and outside the tank can be exchanged when necessary to maintain an appropriate pressure; the exhaust port 39 is used to discharge the gas accumulated in the tank body 2 to maintain the gas balance inside and outside the tank and prevent excessive increase in the pressure in the tank. It is usually designed as a channel that can quickly discharge gas so that the gas in the tank can be released when necessary to relieve the pressure; the circulation pump port 310 is used to connect the external circulation pump, The liquid in the storage tank is extracted and then transported back into the storage tank through the feed port 37, thereby realizing the circulation of the liquid in the storage tank, thereby avoiding precipitation due to long-term static storage of the liquid, and thus maintaining the quality and stability of the liquid; the breathing valve inlet and outlet 311 is used to adjust the pressure of the gas inside and outside the tank body 2 and prevent negative pressure from occurring inside the tank body 2 or excessive increase in the internal pressure of the tank body 2. It is usually designed as a channel that can be automatically opened or closed to ensure that the pressure of the gas inside and outside the tank body 2 is always within an appropriate range; the pressure balance port 38, the exhaust port 39 and the breathing valve inlet and outlet 311 have a synergistic effect, aiming to ensure that the internal gas pressure of the tank body 2 is always within a safe and appropriate range.

[0029] It should be noted that the bottom pipe openings of the inner extension pipe 6 to which the feed port 37 and the circulation pump port 310 are connected are both close to the tank bottom plate 1. This design enables the circulation pump to extract as much liquid as possible from the storage tank for circulation, thereby completely avoiding the generation of precipitation. At the same time, the liquid is injected into the tank from the feed port along the inner extension pipe 6, which can effectively avoid liquid splashing.

[0030] like Figure 1 and Figure 4 As shown, the tank body 2 is further provided with an embedded plate 28 and a fixing frame 29 for fixing the inner extension pipe 6 .

[0031] In this solution, the embedded plate 28 and the fixing frame 29 can effectively reduce the shaking and swaying of the liquid in the storage tank, improve the overall stability of the storage tank, and reduce the occurrence of accidents; at the same time, the fixing frame 29 can effectively fix the inner extension pipe 6, reduce the shaking of the inner extension pipe, and effectively avoid the loss caused by shaking, thereby extending the service life of the inner extension pipe.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, a tail lifting lug 210 is provided on the outer side of the tank body 2 near the tank bottom plate 1 , and a top lifting lug 211 is also provided near the tank top plate 3 .

[0033] It should be noted that the arrangement of the tail lifting lug 210 and the top lifting lug 211 can facilitate the lifting and installation of the tank body 2. Through these lifting lugs, the tank body 2 can be lifted from the ground or other positions to a designated position using lifting equipment and fixedly installed.

[0034] like Figure 6 As shown, combined Figure 1 Reinforcing ribs 251 are evenly arranged between the outer reinforcing ring 25 and the tank body 2 .

[0035] It should be noted that the reinforcing ribs 251 can preferentially enhance the structural strength of the outer reinforcing ring 25, thereby increasing the overall structural strength of the tank body 2, making the tank body 2 more solid and stable when subjected to external pressure or other external forces; the provision of the reinforcing ribs 251 can also disperse the points of action of the external pressure on the tank body 2, reduce the concentration of stress in local areas, and improve the compressive quality of the tank body 2; at the same time, the presence of the reinforcing ribs 251 can effectively reduce the deformation or deformation speed of the tank body 2 caused by the difference in internal and external pressures during use, thereby ensuring the shape stability and service life of the tank body 2.

[0036] like Figure 7 As shown, combined Figure 1 The tank bottom plate 1 is evenly provided with anchor bolt seats 7 around the outer circumference of the tank body 2.

[0037] In this solution, anchor bolt seats 7 are arranged around the tank bottom plate 1 to firmly fix the storage tank on the ground. At the same time, the arrangement of the anchor bolt seats 7 helps to disperse and withstand the pressure of the liquid in the tank body 2 and the external environment on the tank body 2, maintain the stability of the bottom structure of the tank body 2, and reduce the bearing pressure of the foundation, which is beneficial to the stability of the foundation, thereby ensuring the safety of the facility.

[0038] It should be noted that because the first pump outlet 11 is provided at the bottom of the tank bottom plate 1, the storage tank will be installed on a high platform foundation at a certain height. In order to make the storage tank more firmly fixed, an anchor plate with bolts will be buried in the high platform foundation, and then a template and a sample with corresponding holes will be buried above the anchor plate. The anchor bolt seat passes through the bolts on the anchor plate, so that the storage tank is stably fixed on the high platform foundation.

[0039] like Figure 7 As shown, a grounding plate 71 is provided on the anchor bolt seat 7 .

[0040] It should be noted that the grounding plate 71 is a metal plate installed on the anchor bolt seat 7. Its main function is to minimize the potential difference between the storage tank and the ground, thereby ensuring that the potential inside and outside the tank body 2 is the same; since the liquid stored in the storage tank is a flammable substance and is very sensitive to static electricity, when the liquid in the storage tank flows or is pumped, static electricity will be generated due to the friction between the liquid and the pipeline and the wall of the tank body 2. If the potential difference between the tank body 2 and the ground is large, static electricity discharge is likely to occur, causing fire or explosion accidents; therefore, the setting of the grounding plate 71 effectively avoids fire or explosion caused by static electricity discharge, thereby ensuring the safe operation of the storage tank.

[0041] like Figure 1 As shown, the tank bottom plate 1 is arranged inclined toward the first pump outlet 11 .

[0042] In the present solution, the tank bottom plate 1 is inclined toward the first pump outlet 11 to ensure that the liquid in the tank can more easily flow to the extraction port of the pump, thereby improving the oil suction efficiency of the pump and reducing energy consumption; it can also allow the residual liquid to flow toward the pump outlet along the inclined surface, reducing the workload of cleaning and maintenance personnel and improving cleaning efficiency.

[0043] The beneficial effects of the utility model are:

[0044] The tank bottom plate tilted toward the pump outlet is conducive to the extraction and use of the liquid in the tank; the setting of the inner reinforcement ring, outer reinforcement ring, reinforcement ribs and angle steel ring can enhance the stability and carrying capacity of the storage tank; the setting of the pressure gauge port, liquid level gauge port and thermometer port can realize the real-time monitoring of the liquid level, temperature, pressure and other parameters in the tank; the design of the emergency pressure relief port can quickly reduce the pressure or release the harmful gas generated in the tank in an emergency situation to prevent the situation from further deteriorating; the setting of the fire extinguishing agent inlet can quickly take fire extinguishing measures in the emergency situation of spontaneous combustion inside the storage tank to reduce the losses caused by the accident; the setting of the pressure balance port, exhaust port and breathing valve inlet and outlet helps to maintain the pressure balance between the inside and outside of the storage tank and ensure the safe operation of the tank; and the setting of the nitrogen inlet allows nitrogen to enter the tank to isolate the liquid from the air, thereby preventing the oxidation of the liquid; the setting of the circulation pump port can realize the circulation treatment of the liquid in the tank, avoid precipitation, and maintain the quality and performance of the liquid.

[0045] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A storage tank, comprising a tank bottom plate, a tank body welded above the tank bottom plate, a tank top plate welded to the top of the tank body in a conical shape, a maintenance platform arranged on the outer periphery of the tank and close to one side of the tank top plate, and a ladder arranged on the outer periphery of the tank and connected to the maintenance platform and the tank top plate; characterized in that: A first pump outlet connected to an infusion tube is provided at the bottom of the tank bottom plate for allowing a pump to extract liquid from the tank; the tank body includes a second pump outlet provided on one side close to the tank bottom plate and directly above the first pump outlet, a thermometer port provided above the second pump outlet, a first manhole provided above the thermometer port for allowing installation and maintenance personnel to enter the interior of the tank body, an inner reinforcement ring installed inside the tank body for reinforcing the tank body, an outer reinforcement ring welded to the outside of the tank body for reinforcing the tank body, an angle steel ring provided on the top of the tank body for welding and fixing the tank top plate, and a fire extinguishing agent inlet provided below the angle steel ring and connected to a connecting pipe inside the tank body.

2. A storage tank according to claim 1, characterized in that: The tank top plate is provided with a second manhole, an emergency pressure relief port, a pressure gauge port, a first liquid level gauge port, a spare port, a nitrogen inlet, a feed port, a pressure balance port, an exhaust port, a circulation pump port, a breathing valve inlet and outlet, and a second liquid level gauge port in an annular arrangement.

3. A storage tank according to claim 2, characterized in that: The feed inlet and the circulation pump inlet are both connected with inner extension pipes extending into the interior of the tank body.

4. A storage tank according to claim 3, characterized in that: The tank body is also provided with an embedded plate and a fixing frame for fixing the inner extension pipe.

5. A storage tank according to claim 1, characterized in that: A tail lifting lug is arranged on the outer side of the tank body near the tank bottom plate, and a top lifting lug is also arranged near the tank top plate.

6. A storage tank according to claim 1, characterized in that: Reinforcing ribs are evenly arranged between the outer reinforcing ring and the tank body.

7. A storage tank according to claim 1, characterized in that: The tank bottom plate is evenly provided with anchor bolt seats around the outer periphery of the tank body.

8. A storage tank according to claim 7, characterized in that: A grounding plate is arranged on the anchor bolt seat.

9. A storage tank according to claim 1, characterized in that: The tank bottom plate is arranged to be inclined toward the first pump outlet.

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