Automatic water cutting device for liquefied hydrocarbon spherical tank

Abstract

The utility model discloses a kind of automatic water cutting devices of liquefied hydrocarbon spherical tank, including the water cutting tank being communicated with the bottom of spherical tank, the mixed liquid of liquefied hydrocarbon and water being gathered in tank, further including water cutting assembly, the one end of this assembly into tank is equipped with a special density design's plugging ball, the density of this ball is between liquefied hydrocarbon and water, along with liquid level change in tank, plugging ball can be lifted to open passage with the buoyancy of water, or sink to close passage with liquefied hydrocarbon contact, to realize the function of automatic drainage and block hydrocarbon, device is also equipped with a connection tank and water cutting tank communication, its inside is equipped with a set of communication components, the one end of this component connects water cutting system, the other end leads to tank outside, and is equipped with a sealing ball with density less than water, when external outlet is closed, sealing ball will synchronous action, realize secondary sealing from inside, further enhance the sealing reliability of entire system, effectively prevent hydrocarbon leakage, ensure operation safety.

Description

Technical Field

[0001] This utility model relates to the field of industrial safety and automation equipment, specifically to an automatic water-cutting device for liquefied hydrocarbon spherical tanks. Background Technology

[0002] During the production and transportation of liquefied hydrocarbons, a small amount of moisture is inevitably introduced. In addition, moisture in the air may condense and enter the tank during the breathing process of material entering and leaving the tank. Water accumulation at the bottom of the tank will accelerate the corrosion of the steel of the spherical tank, affecting the service life and safety of the equipment. The automatic water-cutting device for liquefied hydrocarbon spherical tanks is a device installed at the bottom of the liquefied hydrocarbon spherical storage tank. Its function is to automatically and safely separate the water accumulated at the bottom of the tank from the liquefied hydrocarbons and discharge only the water outside the tank, while ensuring that the liquefied hydrocarbons do not leak.

[0003] Existing automatic water-cutting devices for liquefied hydrocarbon spherical tanks, after completing the water-cutting operation and closing the valves, are prone to incomplete closure due to corrosion, wear, or aging of seals caused by prolonged contact with the oil-water mixture. This results in a small amount of liquid hydrocarbons or hydrocarbon vapors escaping even when the device is closed. This not only causes product loss and economic damage but also easily leads to the accumulation of flammable gases in the leak area, creating a potential explosive atmosphere and posing risks to the personal safety of on-site operators and the stable operation of production facilities. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an automatic water-cutting device for liquefied hydrocarbon spherical tanks, thereby solving the aforementioned technical problems.

[0005] This utility model provides an automatic water-cutting device for a liquefied hydrocarbon spherical tank, including a water-cutting tank connected to the bottom of the spherical tank, wherein liquefied hydrocarbons and water are distributed inside the water-cutting tank, characterized in that it further includes: The water-cutting component is located inside the water-cutting tank, with one end extending out of the water-cutting tank and the other end inside the tank equipped with a sealing ball. The density of the sealing ball is between that of liquefied hydrocarbons and water, and it can open and close the port of the water-cutting component according to the change of the liquid level in the tank. A connecting tank is installed on the water-cutting tank and connected to the water-cutting tank; The connecting component is located inside the connecting tank. One end is connected to the water-cutting component, and the other end is open to the outside of the connecting tank. It is equipped with a sealing ball with a density less than that of water. When the outer end of the connecting component is closed, the sealing ball simultaneously seals the connecting component.

[0006] Preferably, the water-cutting assembly includes a mounting bracket, which is fixedly installed on the inner wall of the water-cutting tank. A water-cutting hood is fixedly installed on the mounting bracket. A drain pipe is connected to the bottom of the water-cutting hood, one end of which extends to the outside of the water-cutting tank. A sealing ball is located inside the water-cutting hood.

[0007] Preferably, the upper part of the water-cutting hood is cylindrical in the vertical direction, the bottom part of the water-cutting hood is conical in the vertical direction, the sealing ball abuts against the conical inner surface of the bottom of the water-cutting hood, and a number of positioning blocks are uniformly arrayed and fixedly installed on the inner wall surface of the water-cutting hood.

[0008] Preferably, the surface of the blocking ball is made of an elastic material.

[0009] Preferably, the connecting component includes a pressure tank, which is fixedly installed on the inner wall of the connecting tank. The top of the series tanks is provided with a connection port, and a conveying pipe is connected to the connection port. The conveying pipe and the drain pipe are interconnected. One end of the pressure tank is connected to a water outlet pipe, which passes through the bottom surface of the connecting tank. The sealing ball is located inside the pressure tank, and the outer surface of the sealing ball abuts against the connection port.

[0010] Preferably, a number of inclined guide strips are evenly arrayed on the top wall inside the pressure tank, with the lower inclined ends of the inclined guide strips located on the inner wall of the pressure tank and the upper inclined ends of the inclined guide strips located near the connection port.

[0011] Preferably, the surface of the sealing ball is made of an elastic material.

[0012] Preferably, a switch valve is installed on the portion of the water outlet pipe located outside the connecting tank.

[0013] Preferably, an observation port is provided on the side wall of the water cutting tank, and an observation window is fixedly installed on the observation port.

[0014] Compared with existing technologies, it has the following beneficial effects: This invention provides an automatic water-cutting device for a liquefied hydrocarbon spherical tank. By placing a sealing ball with a density higher than liquefied hydrocarbons but lower than water inside the tank, when the water level at the bottom of the tank rises, the buoyancy of the water lifts the ball, causing it to leave its current position and opening the drain outlet to allow water to drain away. When the water is almost completely drained and the water level gradually drops, the ball automatically falls back down under its own buoyancy to block the drain outlet, preventing the safety issue of liquefied hydrocarbons leaking out with the water at the end of the water-cutting process. This achieves a sealing effect of draining water only and preventing oil leakage. By adding a connecting tank that communicates with the water-cutting tank, and connecting the drain end of the water-cutting tank with the connecting component in the connecting tank, the sealing ball, with a density lower than water, leaves its current sealing position when impacted by the water flow. When the external drainage is closed, the water flow in the connecting component returns to a stable state, and under the action of buoyancy, the sealing ball returns to its sealing position, resealing the channel from the inside, enhancing the sealing effect of the water-cutting device and further preventing leakage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic water-cutting device for a liquefied hydrocarbon spherical tank according to the present invention; Figure 2 This is a schematic diagram showing the connection relationship between the water-cutting component and the connecting component of an automatic water-cutting device for liquefied hydrocarbon spherical tanks according to this utility model; Figure 3 This is a cross-sectional view of the internal structure of the pressure tank of an automatic water-cutting device for a liquefied hydrocarbon spherical tank according to the present invention.

[0017] In the diagram, 1. Water cutting tank; 2. Sealing ball; 3. Connecting tank; 4. Sealing ball; 5. Mounting bracket; 6. Water cutting cover; 7. Drain pipe; 8. Positioning block; 9. Pressure tank; 10. Connection port; 11. Delivery pipe; 12. Water outlet pipe; 13. Guide strip; 14. Switch valve; 15. Observation window. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0019] Example 1: like Figures 1 to 3 As shown, this utility model provides an automatic water-cutting device for a liquefied hydrocarbon spherical tank, including a water-cutting tank 1 connected to the bottom of the spherical tank, wherein liquefied hydrocarbons and water are distributed in the water-cutting tank 1, characterized in that it further includes: The water-cutting component is located inside the water-cutting tank 1, with one end extending out of the water-cutting tank 1 and the other end located inside the tank having a sealing ball 2. The density of the sealing ball 2 is between that of liquefied hydrocarbon and water, and it can open and close the port of the water-cutting component according to the change of the liquid level in the tank. Connecting tank 3 is mounted on water-cutting tank 1 and connected to water-cutting tank 1; The connecting component is located inside the connecting tank 3. One end is connected to the water-cutting component, and the other end is connected to the outside of the connecting tank 3. A sealing ball 4 with a density less than that of water is provided on it. When the outer end of the connecting component is closed, the sealing ball 4 simultaneously seals the connecting component.

[0020] In use, the water-cutting tank 1 is connected to the bottom of the spherical tank. The water-cutting tank 1 contains a mixture of water and liquefied hydrocarbons. The sealing ball 2 inside the water-cutting tank 1 has a density less than water but greater than liquefied hydrocarbons. When the water level in the tank is low, the sealing ball 2 will fall and block the drain. When the water accumulates to a certain height, the buoyancy of the water will lift the ball, thereby opening the drain and allowing water to flow out. In the adjacent connecting tank 3, there is another sealing ball 4, which has a density less than water and floats on the top of the water. When the drain pipe 7 is closed from the outside, the internal water flow stops and returns to stability. The sealing ball 4 automatically floats up under the action of buoyancy to seal the opening. By using two floating balls with different densities, the system automatically completes drainage by sensing changes in the liquid level and forms a double seal inside and outside when closed, thus safely removing the accumulated water.

[0021] Example 2: like Figures 1 to 3 As shown, in conjunction with the technical solution of Embodiment 1, in this technical solution, the water-cutting assembly includes a mounting frame 5, which is fixedly installed on the inner wall of the water-cutting tank 1. A water-cutting cover 6 is fixedly installed on the mounting frame 5, and a drain pipe 7 is connected to the bottom of the water-cutting cover 6. One end of the drain pipe 7 extends to the outside of the water-cutting tank 1, and the sealing ball 2 is located inside the water-cutting cover 6. When the water level at the bottom of the water-cutting tank 1 rises, the buoyancy of the water will lift the sealing ball 2, and the water flow can be discharged through the drain pipe 7. When the water is almost drained and liquefied hydrocarbons arrive, the buoyancy decreases, and the ball will fall down by itself, relying on its own weight to tightly block the outlet at the bottom of the water-cutting cover 6, thereby completing one drainage cycle.

[0022] Furthermore, the upper part of the water-cutting cover 6 is cylindrical in the vertical direction, and the lower part is conical in the vertical direction. The sealing ball 2 abuts against the conical inner surface of the bottom of the water-cutting cover 6. Several positioning blocks 8 are evenly arrayed and fixedly installed on the inner wall surface of the water-cutting cover 6. The upper part of the water-cutting cover 6 is a straight cylindrical shape, which allows the sealing ball 2 to move smoothly up and down. The lower part is designed as a funnel-shaped cone. When drainage needs to be closed, the sealing ball 2 will fall down and land on the conical funnel opening. The cone angle is used to achieve a tight seal and effectively prevent leakage. The positioning blocks 8 on the inner wall of the cover guide and limit the ball when it moves up and down.

[0023] Furthermore, the surface of the sealing ball 2 is made of an elastic material. When the ball falls to block the drain outlet, this elastic surface is compressed and deformed, thus adhering tightly to the sealing surface of the drain outlet, improving the reliability of the seal.

[0024] Furthermore, the connecting assembly includes a pressure tank 9, which is fixedly installed on the inner wall of the connecting tank 3. A connection port 10 is provided at the top of the series tanks, and a delivery pipe 11 is connected to the connection port 10. The delivery pipe 11 is interconnected with the drain pipe 7. One end of the pressure tank 9 is connected to a water outlet pipe 12, which passes through the bottom surface of the connecting tank 3. A sealing ball 4 is located inside the pressure tank 9, and its outer surface abuts against the connection port 10. When the valve on the water outlet pipe 12 is closed externally, the pressure inside the pipe changes, and the water flow in the pressure tank 9 changes from a flowing state to a static state. At this time, the sealing ball 4, under the action of buoyancy, presses more tightly against the top inlet, forming a reliable seal.

[0025] Furthermore, several inclined guide strips 13 are evenly arrayed on the top wall of the pressure tank 9. The lower inclined ends of the guide strips 13 are located on the inner wall of the pressure tank 9, and the higher inclined ends are located near the connection port 10. When sealing is required, the sealing ball 4 moves upward under the action of water pressure changes. These inclined guide strips 13 can guide the sealing ball 4 to accurately enter the connection port 10 at the top, ensuring precise alignment and reliable completion of the sealing task.

[0026] Furthermore, the surface of the sealing ball 4 is made of an elastic material. When the ball is guided to the connection port 10 by the guide bar 13, this elastic surface is compressed and deformed, thus adhering tightly to the sealing surface of the connection port 10, improving the reliability of the seal and achieving a more perfect sealing effect by utilizing the elastic deformation of the material.

[0027] Furthermore, a switch valve 14 is installed on the portion of the water outlet pipe 12 located outside the connecting tank 3. When it is necessary to stop drainage, the valve is manually closed, causing the sealing ball 4 in the pressure tank 9 to move upward under pressure changes, automatically sealing the connection port 10, thus achieving the dual effect of external pipe cut-off and internal sealing.

[0028] Furthermore, an observation port is provided on the side wall of the water tank 1, and an observation window 15 is fixedly installed on the observation port. The operator can directly see the internal condition of the tank at any time through this transparent window, such as the water level, the position of the sealing ball 2, whether the drainage is normal, or whether there is any abnormal foam or impurities. In this way, the operator can grasp the operating status without opening the equipment.

[0029] The working principle of the automatic water-cutting device for liquefied hydrocarbon spherical tanks disclosed in this application is as follows: In use, a water-cutting shield 6 with a sealing ball 2 is located in the water-cutting tank 1 at the bottom of the spherical tank. The density of the sealing ball 2 is between that of oil and water. When the water level rises, the buoyancy of the water pushes the ball up, opening the channel at the bottom of the water-cutting shield 6. Water drains out through the drain pipe 7. As the water is about to be drained, the sealing ball 2 automatically falls with the drop in water level, landing on the channel at the bottom of the water-cutting shield 6 and sealing it. In the connecting tank 3 connected to the water-cutting tank 1, there is a pressure tank 9 containing a sealing ball 4. When the valve of the outlet pipe 12 is closed from the outside, this closing action will cause the pipe to... As the water pressure inside changes, the water flow in pressure tank 9 returns to a stable state, pushing the sealing ball 4 upward to seal the inlet at the top of pressure tank 9, forming a second seal. Throughout the process, the conical design of the water-cutting shield 6 and the elastic surface of the ball make the seal tighter. The inclined guide strip 13 inside pressure tank 9 helps the sealing ball 4 to return to its correct position. The observation window 15 next to the water-cutting tank 1 allows for easy viewing of the internal situation at any time. The buoyancy relationship between the two floats, liquefied hydrocarbons, and water is used to complete the drainage and form a double seal when closed, thereby safely removing accumulated water and preventing the leakage of hazardous media.

[0030] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. An automatic water-cutting device for a liquefied hydrocarbon spherical tank, comprising a water-cutting tank (1) connected to the bottom of the spherical tank, wherein liquefied hydrocarbons and water are distributed within the water-cutting tank (1), characterized in that, Also includes: The water-cutting component is located inside the water-cutting tank (1), with one end extending out of the water-cutting tank (1) and the other end located inside the tank is provided with a sealing ball (2). The density of the sealing ball (2) is between that of liquefied hydrocarbon and water, and it can open and close the port of the water-cutting component according to the change of the liquid level in the tank. Connecting tank (3), located on water cutting tank (1) and connected to water cutting tank (1); The connecting component is located inside the connecting tank (3). One end is connected to the water-cutting component, and the other end is connected to the outside of the connecting tank (3). A sealing ball (4) with a density less than that of water is provided on it. When the outer end of the connecting component is closed, the sealing ball (4) seals the connecting component simultaneously.

2. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 1, characterized in that, The water-cutting assembly includes a mounting bracket (5), which is fixedly installed on the inner wall of the water-cutting tank (1). A water-cutting cover (6) is fixedly installed on the mounting bracket (5). A drain pipe (7) is connected to the bottom of the water-cutting cover (6). One end of the drain pipe (7) extends to the outside of the water-cutting tank (1). The sealing ball (2) is located inside the water-cutting cover (6).

3. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 2, characterized in that, The water-cutting hood (6) is cylindrical at the top vertically and conical at the bottom vertically. The sealing ball (2) abuts against the conical inner surface of the bottom of the water-cutting hood (6). Several positioning blocks (8) are uniformly arrayed and fixedly installed on the inner wall surface of the water-cutting hood (6).

4. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 3, characterized in that, The surface of the blocking ball (2) is made of an elastic material.

5. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 1, characterized in that, The connecting component includes a pressure tank (9), which is fixedly installed on the inner wall of the connecting tank (3). The top of the series tank is provided with a connection port (10), and a conveying pipe (11) is connected to the connection port (10). The conveying pipe (11) is connected to the drain pipe (7). One end of the pressure tank (9) is connected to a water outlet pipe (12), which passes through the bottom surface of the connecting tank (3). The sealing ball (4) is located inside the pressure tank (9), and the outer surface of the sealing ball (4) abuts against the connection port (10).

6. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 5, characterized in that, Several inclined guide strips (13) are evenly arrayed on the top wall inside the pressure tank (9). The lower inclined ends of several inclined guide strips (13) are located on the inner wall of the pressure tank (9), and the upper ends of several inclined guide strips (13) are located near the connection port (10).

7. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 6, characterized in that, The surface of the sealing ball (4) is made of an elastic material.

8. The automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 5, characterized in that, A switch valve (14) is installed on the part of the water outlet pipe (12) located outside the connecting tank (3).

9. An automatic water-cutting device for a liquefied hydrocarbon spherical tank according to claim 1, characterized in that, An observation port is provided on the side wall of the water cutting tank (1), and an observation window (15) is fixedly installed on the observation port.

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