Pressure reducing device for storage tank

Abstract

The utility model discloses a pressure reducing device for a storage tank. The pressure reducing device comprises the storage tank, a liquid inlet pipe, a liquid outlet pipe, a drainage pipe, an emptying pipe, an air pressure balance pipe, a conical hopper, a bent pipe and a stainless steel net, a liquid inlet pipe, a liquid outlet pipe, a drainage pipe, an emptying pipe and an air pressure balance pipe are arranged at the upper part of the storage tank; one end of the liquid inlet pipe, one end of the liquid outlet pipe and one end of the drainage pipe extend to the lower portion of the storage tank, the extending end of the liquid inlet pipe is connected with the conical hopper through a bent pipe, and the stainless steel net is fixed to the conical hopper through a flange. Liquid such as n-hexane, acetone, ethyl acetate and liquefied petroleum gas enters the storage tank through the liquid inlet pipe, one end of the liquid inlet pipe, one end of the liquid outlet pipe and one end of the drainage pipe extend to the lower portion of the storage tank to facilitate entering or outputting of the liquid, the extending end of the liquid inlet pipe is connected with the conical hopper through a bent pipe, and the stainless steel net is fixed to the conical hopper through a flange. The stainless steel mesh is fixed on the conical hopper through the flange, so that the speed is slowed down, the impact force of the solvent inlet pipeline opening and the tank bottom is reduced, the loss of the tank bottom is reduced, and the service life of the tank is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of storage tank technology, and specifically to a pressure reducing device for storage tanks. Background Technology

[0002] Currently, solvent storage tanks used in the market mainly consist of the tank body, inlet pipe, outlet pipe, and drain pipe. When fresh solvent is added to the tank, or when recycled solvent is returned to the tank, the inlet pipe has a high potential energy due to the external pressure pump and the solvent's own weight and flow rate. This results in a significant impact on the tank bottom directly opposite the inlet pipe. Furthermore, the solvent itself is slightly corrosive, easily causing impact corrosion damage to the tank bottom directly opposite the inlet pipe. This reduces the wall thickness at the impact point, affecting the tank's pressure resistance and potentially leading to safety hazards and accidents such as reduced wall thickness, rupture, and leakage. Therefore, a pressure reduction and deceleration modification is being implemented at the inlet pipe of the solvent storage tank.

[0003] Therefore, a pressure reducing device for storage tanks is provided. This device reduces pressure and speed at the solvent inlet outlet, ultimately reducing the impact force on the tank bottom at the solvent inlet, minimizing wear on the tank bottom, extending the tank's service life, and lowering equipment costs for the enterprise. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a pressure reducing device for storage tanks.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A pressure reducing device for a storage tank includes: a storage tank, an inlet pipe, an outlet pipe, a drain pipe, an empty pipe, a pressure balancing pipe, a conical hopper, a bend, and a stainless steel mesh.

[0007] The upper part of the storage tank is equipped with an inlet pipe, an outlet pipe, a drain pipe, an vent pipe, and a pressure balance pipe.

[0008] One end of the inlet pipe, outlet pipe, and drain pipe extends to the bottom of the storage tank. The extended end of the inlet pipe is connected to the conical hopper via a bend. The stainless steel mesh is fixed to the conical hopper via a flange.

[0009] Furthermore: the storage tank is equipped with a temperature probe and a liquid level probe, both of which are connected to a display.

[0010] Furthermore: the liquid outlet pipe and the pressure balance pipe are both connected to the extraction tank, and a first pump body is installed on the liquid outlet pipe.

[0011] Furthermore, the top of the storage tank is provided with an auxiliary cavity, through which the inlet pipe, outlet pipe, drain pipe, vent pipe, and pressure balance pipe extend into the storage tank.

[0012] Furthermore: the side wall of the storage tank is configured as a cavity structure, which is the tank cavity. The tank cavity is connected to the auxiliary cavity through an intermediate pipe, and a flow regulating valve is installed on the intermediate pipe.

[0013] Furthermore: an auxiliary tube is provided on the top wall of the annular cavity of the tank cavity, and two arc-shaped guide plates are provided on the upper part of the annular cavity structure of the tank cavity, with the upper ends of the two arc-shaped guide plates connected together.

[0014] Furthermore, the auxiliary tube has output ports on both sides of its lower part.

[0015] Furthermore: a water outlet pipe is provided at the lower part of the tank cavity, which is connected to a water storage tank, and the water storage tank is connected to the auxiliary cavity through a replenishment pipe.

[0016] Furthermore: a control valve is installed on the water outlet pipe, and a second pump body is installed on both the water outlet pipe and the replenishment pipe.

[0017] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0018] (1) The storage tank is supplied with liquids such as hexane, acetone, ethyl acetate, and liquefied petroleum gas through the inlet pipe. One end of the inlet pipe, outlet pipe, and drain pipe extends to the bottom of the storage tank to facilitate the entry or exit of the liquid. The extended end of the inlet pipe is connected to the conical hopper through a bend. The stainless steel mesh is fixed to the conical hopper through a flange. The stainless steel mesh is fixed to the conical hopper through a flange to slow down the speed and reduce the impact force on the bottom of the tank at the inlet of the solvent, thereby reducing the wear on the bottom of the tank and extending the service life of the tank.

[0019] (2) The purpose of the drain pipe is to recover the liquid after the substance is extracted from the extraction tank. The liquid contains more water, and the two have different densities. The water has a higher density at the bottom, which is not conducive to subsequent use or extraction. Water will corrode the bottom wall of the tank. A water pump is connected to the outside of the drain pipe to facilitate the discharge of water. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the structure of this utility model.

[0021] Figure 2 This is a side view of the structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the connection of the extraction tank of this utility model.

[0023] In the diagram: 1-Storage tank, 2-Inlet pipe, 3-Outlet pipe, 4-Drain pipe, 5-Empty pipe, 6-Pressure balance pipe, 7-Conical hopper, 8-Temperature probe, 9-Level probe, 10-Display, 11-Extraction tank, 12-First pump body, 13-Auxiliary chamber, 14-Intermediate pipe, 15-Auxiliary pipe, 16-Tank cavity, 17-Guide plate, 18-Outlet pipe, 19-Flow regulating valve, 20-Water storage tank, 21-Supplement pipe, 22-Control valve, 23-Second pump body, 24-Bend, 25-Stainless steel mesh, 26-Outlet port. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be 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 present utility model and are not intended to limit the present utility model.

[0025] A pressure reducing device for a storage tank includes: a storage tank 1, an inlet pipe 2, an outlet pipe 3, a drain pipe 4, an empty pipe 5, a pressure balancing pipe 6, a conical hopper 7, a temperature probe 8, a liquid level probe 9, a display 10, an extraction tank 11, a first pump body 12, an auxiliary chamber 13, an intermediate pipe 14, an auxiliary pipe 15, a tank cavity 16, a guide plate 17, a water outlet pipe 18, a flow regulating valve 19, a water storage tank 20, a replenishment pipe 21, a control valve 22, a second pump body 23, a bend 24, a stainless steel mesh 25, and an output port 26.

[0026] The upper part of the storage tank 1 is equipped with an inlet pipe 2, an outlet pipe 3, a drain pipe 4, an empty pipe 5, and a pressure balancing pipe 6. One end of the inlet pipe 2, outlet pipe 3, and drain pipe 4 extends to the lower part of the storage tank 1. The extended end of the inlet pipe 2 is connected to a conical hopper 7 via a bend 24. A stainless steel mesh 25 is fixed to the conical hopper 7 via a flange. A temperature probe 8 and a liquid level probe 9 are installed inside the storage tank 1, and both the temperature probe 8 and the liquid level probe 9 are connected to a display 10. The outlet pipe 3 and the pressure balancing pipe 6 are both connected to the extraction tank 11, and a first pump body 12 is installed on the outlet pipe 3.

[0027] The side wall of storage tank 1 is designed as a cavity structure, which is a circular cavity, namely tank cavity 16. An auxiliary cavity 13 is provided at the top of storage tank 1. The inlet pipe 2, outlet pipe 3, drain pipe 4, vent pipe 5, and pressure balance pipe 6 extend through the auxiliary cavity 13. The auxiliary cavity 13 is connected to tank cavity 16 through an intermediate pipe 14. A flow regulating valve 19 is provided on the intermediate pipe 14. The auxiliary pipe 15 is provided on the top wall of the circular cavity structure of tank cavity 16. The lower two side walls of the auxiliary pipe 15 have outlet ports 26. Two arc-shaped guide plates 17 are provided at the upper part of the circular cavity structure of tank cavity 16. The upper ends of the two arc-shaped guide plates 17 are connected. A water outlet pipe 18 is provided at the lower part of tank cavity 16. The water outlet pipe 18 is connected to the water storage tank 20. The water storage tank 20 is connected to the auxiliary cavity 13 through a replenishment pipe 21. A control valve 22 is installed on the water outlet pipe 18, and a second pump body 23 is installed on both the water outlet pipe 18 and the replenishment pipe 21.

[0028] Working process: Liquids such as hexane, acetone, ethyl acetate, and liquefied petroleum gas enter storage tank 1 through inlet pipe 2. One end of inlet pipe 2, outlet pipe 3, and drain pipe 4 extends to the lower part of storage tank 1 to facilitate the entry or exit of liquids. The extended end of inlet pipe 2 is connected to conical hopper 7 through bend pipe 24. Stainless steel mesh 25 is fixed to conical hopper 7 through flange. The stainless steel mesh 25 is fixed to conical hopper 7 through flange to slow down the flow and reduce the impact force on the bottom of the tank at the solvent inlet pipe, thereby reducing wear on the bottom of the tank and extending the service life of the tank.

[0029] The liquid in storage tank 1 enters extraction tank 11 through outlet pipe 3. The liquid in storage tank 1 serves as a carrier for extracting substances. After extraction, the liquid enters an evaporation container for evaporation. The collected liquid after evaporation can be returned to storage tank 1 for storage and reuse. Storage tank 1 and extraction tank 11 are connected by a pressure balance pipe 6 to balance the pressure between the two devices, facilitating the first pump body 12 to draw the liquid from storage tank 1 into extraction tank 11.

[0030] The purpose of drain pipe 4 is to recover the liquid after the material is extracted from extraction tank 11. The liquid contains more water, and since the densities of the two substances differ (water is denser at the bottom), this is detrimental to subsequent use and extraction, as it corrodes the bottom wall of the tank. A water pump is connected to the outside of drain pipe 4 to facilitate the drainage of water. The lower end of drain pipe 4 inside storage tank 1 is slightly lower than the lower end of outlet pipe 3 inside storage tank 1. The liquid inside storage tank 1 is utilized, and the lower end of drain pipe 4 is attached to the inner wall of storage tank 1.

[0031] The purpose of vent pipe 5 is to release the pressure inside the tank.

[0032] The storage tank 1 is equipped with a temperature probe 8 and a liquid level probe 9, both of which are connected to a display 10. This facilitates the monitoring of the temperature and liquid volume within the storage tank 1.

[0033] When recycled liquid enters storage tank 1, it may cause the temperature of storage tank 1 to rise, which is not conducive to storage. Water enters auxiliary chamber 13, which can play a certain role in cooling the inlet pipe 2, outlet pipe 3, drain pipe 4, vent pipe 5, and pressure balance pipe 6 at auxiliary chamber 13. The water in auxiliary chamber 13 enters the auxiliary pipe 15 of tank cavity 16 through intermediate pipe 14, and then exits through the outlet 26 of auxiliary pipe 15. Two arc-shaped guide plates 17 are provided on the upper part of the annular cavity structure of tank cavity 16. The upper ends of the two arc-shaped guide plates 17 are connected, and water enters both sides of tank cavity 16 to facilitate the cooling of the liquid in tank cavity 16. After cooling, the water enters the water storage tank 20 through water outlet pipe 18. Water tank pipes are provided on the upper and lower sides of the side wall of water storage tank 20. There are valves on the water tank pipes to facilitate the replenishment or drainage of water in storage tank 20.

[0034] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A pressure-reducing device for a storage tank, characterized in that: include: Storage tank (1), inlet pipe (2), outlet pipe (3), drain pipe (4), vent pipe (5), pressure balance pipe (6), conical hopper (7), bend pipe (24), stainless steel mesh (25); The upper part of the storage tank (1) is provided with an inlet pipe (2), an outlet pipe (3), a drain pipe (4), an empty pipe (5), and a pressure balance pipe (6); One end of the inlet pipe (2), outlet pipe (3), and drain pipe (4) extends to the lower part of the storage tank (1). The extended end of the inlet pipe (2) is connected to the conical bucket (7) through a bend (24). The stainless steel mesh (25) is fixed on the conical bucket (7) through a flange.

2. The pressure-reducing device for a storage tank according to claim 1, characterized in that: The storage tank (1) is equipped with a temperature probe (8) and a liquid level probe (9), both of which are connected to a display (10).

3. The pressure-reducing device for a storage tank according to claim 1, characterized in that: The liquid outlet pipe (3) and the pressure balance pipe (6) are both connected to the extraction tank (11), and the first pump body (12) is installed on the liquid outlet pipe (3).

4. A pressure-reducing device for a storage tank according to claim 1, characterized in that: The top of the storage tank (1) is provided with an auxiliary cavity (13), and the inlet pipe (2), outlet pipe (3), drain pipe (4), vent pipe (5), and pressure balance pipe (6) extend through the auxiliary cavity (13) into the storage tank (1).

5. A pressure-reducing device for a storage tank according to claim 1, characterized in that: The side wall of the storage tank (1) is configured as a cavity structure, which is the tank cavity (16). The tank cavity (16) is connected to the auxiliary cavity (13) through the intermediate pipe (14). A flow regulating valve (19) is provided on the intermediate pipe (14).

6. A pressure-reducing device for a storage tank according to claim 1, characterized in that: An auxiliary tube (15) is provided on the top wall of the annular cavity of the tank cavity (16). Two arc-shaped guide plates (17) are provided on the upper part of the annular cavity structure of the tank cavity (16), and the upper ends of the two arc-shaped guide plates (17) are connected.

7. A pressure-reducing device for a storage tank according to claim 1, characterized in that: The auxiliary tube (15) has output ports (26) on both sides of its lower part.

8. A pressure-reducing device for a storage tank according to claim 1, characterized in that: The lower part of the tank cavity (16) is provided with a water outlet pipe (18), which is connected to the water storage tank (20). The water storage tank (20) is connected to the auxiliary cavity (13) through a replenishment pipe (21).

9. A pressure-reducing device for a storage tank according to claim 1, characterized in that: A control valve (22) is installed on the water outlet pipe (18), and a second pump body (23) is installed on both the water outlet pipe (18) and the replenishment pipe (21).

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