Energy dissipation device for pressurization opening of liquid storage tank

Abstract

The utility model discloses an energy dissipation device for a pressurization port of a liquid storage tank, which relates to the field of liquid storage tanks and comprises a pressurization port straight pipe section with one end used for being connected with a high-pressure nitrogen pipe and the other end inserted on a manhole blind plate and extending into the liquid storage tank; the energy dissipation section is a conical shell, the small head end of the energy dissipation section is communicated with the other end of the pressurization opening straight pipe section, the large head end of the energy dissipation section is sealed through a bottom plate, and a plurality of air holes are formed in the outer side of the circumference of the energy dissipation section; the energy dissipation device can eliminate interference of high-pressure nitrogen gas on a medium in the storage tank, ensures stable pressure flow at a pipeline outlet, and weakens high-pressure incoming flow gas energy at a pressurizing port, so that stable pressure flow of a test medium at the outlet of the storage tank is ensured, and the energy dissipation effect is improved. Impact of high-speed gas on the bottom of the storage tank is prevented, and the service life of the storage tank is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of liquid storage tanks, and more specifically relates to an energy dissipation device for a pressurization port of a liquid storage tank. Background Art

[0002] Liquid rocket engine test benches often use liquid oxygen and methane as fuel for test runs. Liquid oxygen and methane are stored in cryogenic liquid storage tanks. To ensure the test medium's pressure and flow meet test requirements, the tanks are typically pressurized with high-pressure nitrogen. A closed-loop pressurization method using a pneumatic valve and orifice plate is employed to discharge the test medium at a specific pressure and flow rate from the tank outlet. Directly pressurizing the tank with high-pressure nitrogen can significantly disrupt and separate the liquid, making the outlet pressure and flow extremely unstable. This can easily cause high-speed gas impacts on the tank bottom, shortening the tank's service life. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the prior art and provide an energy dissipation device for a liquid storage tank boost port, which can eliminate the interference of high-pressure nitrogen gas on the medium inside the storage tank, ensure the stability of the pressure flow at the pipeline outlet, and arrange the energy dissipation device at the boost port to weaken the energy of the high-pressure incoming gas. On the one hand, it ensures the stability of the pressure flow of the test medium at the storage tank outlet, and on the other hand, it prevents the impact of high-speed gas on the bottom of the storage tank, thereby improving the service life of the storage tank.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a liquid storage tank pressurization port energy dissipation device, comprising:

[0005] A straight pipe section of the boost port, one end of which is used to be connected to the high-pressure nitrogen pipe, and the other end of which is inserted into the manhole blind plate and extends to the interior of the liquid storage tank;

[0006] The energy dissipation section includes a conical shell, the small end of the conical shell is connected to the other end of the supercharging port straight pipe section, the large end of the conical shell is closed by a bottom plate, and a plurality of air holes are provided on the outer circumference of the conical shell.

[0007] Optionally, the boost port straight pipe section and the high-pressure nitrogen pipe are connected by a flange.

[0008] Optionally, the boost port straight pipe section is connected to the boost inlet flange by welding.

[0009] Optionally, the boost port straight pipe section is connected to the manhole blind plate by welding.

[0010] Optionally, the manhole blind plate is connected to the liquid storage tank through a matching flange.

[0011] Optionally, the energy dissipation section and the boost port straight pipe section are connected by welding.

[0012] Optionally, the taper range of the conical shell is 30° to 60°.

[0013] Optionally, the energy dissipation section is made of stainless steel.

[0014] Optionally, the air holes are evenly distributed on the periphery of the conical shell.

[0015] Optionally, the boost port straight pipe section and the conical shell are arranged in alignment, and the bottom plate is perpendicular to the axial direction of the boost port straight pipe section.

[0016] The utility model provides an energy dissipation device for a pressurization port of a liquid storage tank, which has the beneficial effect that: the energy dissipation device is assembled from a plurality of components, and the gas pressure discharged from the straight pipe section of the pressurization port is weakened by the energy dissipation section, thereby eliminating the influence of the high-pressure gas on the test medium inside the storage tank, ensuring the flow field quality at the pipeline outlet, and at the same time weakening the impact of high-speed gas on the bottom of the storage tank, thereby improving the service life of the storage tank.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A schematic structural diagram of an energy dissipation device for a pressurization port of a liquid storage tank according to an embodiment of the present utility model is shown.

[0020] Description of reference numerals:

[0021] 1. Booster inlet flange; 2. Booster inlet straight pipe section; 3. Manhole blind plate; 4. Energy dissipation section; 5. Bottom plate; 6. Flange; 7. Air hole. DETAILED DESCRIPTION

[0022] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0023] The utility model provides an energy dissipation device for a liquid storage tank pressurization port, comprising:

[0024] The boost port straight pipe section has one end for connecting to the high-pressure nitrogen pipe, and the other end of the boost port straight pipe section is inserted into the manhole blind plate and extends to the interior of the liquid storage tank;

[0025] The energy dissipation section includes a conical shell, the small end of the conical shell is connected to the other end of the supercharging port straight pipe section, the large end of the conical shell is closed by a bottom plate, and a plurality of air holes are provided on the outer circumference of the conical shell.

[0026] Specifically, the energy dissipation device connects the boost port straight pipe section with the high-pressure nitrogen pipe, introduces the high-pressure nitrogen into the liquid storage tank, and inserts and fixes the boost port straight pipe section with the manhole blind plate to prevent the high-pressure gas from vibrating the pipe body when flowing in the boost port straight pipe section, causing the connection strength between the boost port straight pipe section and the high-pressure nitrogen pipe to decrease; an energy dissipation section is set at one end of the boost port straight pipe section located in the liquid storage tank, and after the high-pressure nitrogen is discharged from the boost port straight pipe section, it encounters a certain pressure consumed by the bottom plate. Due to the increase in the cross-sectional area inside the conical shell, the incoming flow velocity of the air flow can also be reduced. In this way, the combined structure can greatly reduce the flow velocity of the air pressure, and finally discharge it into the liquid storage tank from the air hole, so it will not disturb the internal test medium too much, and the direction in which the gas flows into the liquid storage tank is not towards the bottom of the storage tank, so it will not cause impact on the bottom of the storage tank.

[0027] Optionally, the straight pipe section of the boost port and the high-pressure nitrogen pipe are connected by a flange.

[0028] Optionally, the boost port straight pipe section and the boost inlet flange are connected by welding.

[0029] Specifically, the boost inlet flange is welded to one end of the boost inlet straight pipe section between the boost inlet and the high-pressure nitrogen pipe, and a flange is also welded to the corresponding connection end of the high-pressure nitrogen pipe. In this way, the boost inlet straight pipe section and the high-pressure nitrogen pipe can be connected through the flange, avoiding the loss of gas pressure in the pipe, and the connection operation is safer and more reliable.

[0030] Optionally, the straight pipe section of the boost port is connected to the manhole blind plate by welding.

[0031] Optionally, the manhole blind plate is connected to the liquid storage tank through a mating flange.

[0032] Specifically, the straight pipe section of the boost port is directly inserted into the liquid storage tank. When passing through the manhole blind plate position, the straight pipe section of the boost port is welded and fixed to the reserved hole of the manhole blind plate, and then the manhole busy plate is connected to the matching flange on the manhole to improve the connection strength between the straight pipe section of the boost port and the liquid storage tank.

[0033] Optionally, the energy dissipation section and the pressurization port straight pipe section are connected by welding.

[0034] Optionally, the taper range of the conical shell is 30° to 60°.

[0035] Optionally, the energy dissipation section is made of stainless steel.

[0036] Specifically, the small end of the conical shell is open, and the large end is sealed by a bottom plate. The bottom plate is welded to the conical shell to improve the ability to resist the impact of high-pressure gas. In this way, after the high-pressure nitrogen enters the conical shell through the straight pipe section of the boost port, it cannot be discharged into the liquid storage tank from the large end of the conical shell, and will not cause impact on the bottom of the liquid storage tank; the taper of the conical shell is set to between 30° and 60°, which can provide a larger buffer space for the high-pressure nitrogen, thereby reducing the flow velocity of the airflow.

[0037] Optionally, the air holes are evenly distributed on the outer circumference of the conical shell.

[0038] Specifically, the air holes are evenly distributed on the outer circumference of the conical shell. After the gas is buffered in the energy dissipation section, it enters the liquid storage tank under the guidance of the air holes, and makes the impact force of the gas on the conical shell more uniform, and the high-pressure gas is dispersed and discharged into the liquid storage tank, which reduces the gas flow speed and reduces the impact on the liquid medium in the storage tank.

[0039] Optionally, the straight pipe section of the supercharging port and the conical shell are arranged in alignment, and the bottom plate is perpendicular to the axial direction of the straight pipe section of the supercharging port.

[0040] Example

[0041] like Figure 1 As shown, the utility model provides an energy dissipation device for the boost port of a liquid storage tank. High-pressure nitrogen passes through the boost inlet flange 1 and the boost port straight pipe section 2 in sequence and is discharged into the liquid storage tank through the air hole 7. The energy of the outlet airflow is weakened by the shape of the energy dissipation section 4 itself, and the airflow energy is further reduced through the bottom plate 5, thereby alleviating the impact of the high-pressure gas on the liquid medium in the storage tank. This device weakens and eliminates the influence of the high-pressure gas on the test medium inside the storage tank, ensures the flow field quality at the pipeline outlet, and at the same time weakens the impact of the high-speed gas on the bottom of the storage tank, thereby improving the service life of the storage tank.

[0042] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A liquid storage tank boost port energy dissipation device, characterized in that: include: A straight pipe section of the boost port, one end of which is used to be connected to the high-pressure nitrogen pipe, and the other end of which is inserted into the manhole blind plate and extends to the interior of the liquid storage tank; The energy dissipation section includes a conical shell, the small end of the conical shell is connected to the other end of the supercharging port straight pipe section, the large end of the conical shell is closed by a bottom plate, and a plurality of air holes are provided on the outer circumference of the conical shell.

2. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The boost port straight pipe section and the high-pressure nitrogen pipe are connected by a flange.

3. The liquid storage tank pressurization port energy dissipation device according to claim 2, characterized in that: The boost port straight pipe section is connected to the boost inlet flange by welding.

4. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The boost port straight pipe section is welded to the manhole blind plate.

5. The liquid storage tank pressurization port energy dissipation device according to claim 4, characterized in that: The manhole blind plate is connected to the liquid storage tank through a matching flange.

6. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The energy dissipation section and the pressurization port straight pipe section are connected by welding.

7. The liquid storage tank pressurization port energy dissipation device according to claim 6, characterized in that: The taper range of the conical shell is 30° to 60°.

8. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The energy dissipation section is made of stainless steel.

9. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The air holes are evenly distributed on the outer circumference of the conical shell.

10. The liquid storage tank pressurization port energy dissipation device according to claim 1, characterized in that: The straight pipe section of the supercharging port is centrally arranged with respect to the conical shell, and the bottom plate is perpendicular to the axial direction of the straight pipe section of the supercharging port.

Images