Follow-up outlet type overload induction storage box

By designing a follow-up outlet overload induction storage tank, using working fluid saturated steam pressure and all-metal structure, the existing storage tanks rely on supercharged gas, large weight, limited use times and poor liquid shaking suppression are solved, and lightweight, long life and high-efficiency liquid management without the need for a separate gas source.

CN119503136APending Publication Date: 2025-02-25LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Patent Information

Application Number
CN202411690491.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-23
Publication Date
2025-02-25

AI Technical Summary

Technical Problem

During use, the existing physical isolation storage tanks have problems such as pressurized gas source dependence, large weight, limited use times and short life, especially in suppressing liquid shaking.

Method used

A follow-up outlet overload induction storage tank is designed, adopting an all-metal structure, and the continuous transport of liquid is achieved through a composite tube and a liquid management device. The working fluid saturated steam pressure is used as the booster gas, and there is no need to set a separate gas source.

Benefits of technology

It realizes continuous liquid transportation without a separate gas source, has a light weight and a high volume utilization rate, meets the requirements of long-term storage and multiple use, and effectively suppresses liquid shaking.

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Abstract

The invention relates to the technical field of working medium storage, in particular to a follow-up outlet type overload induction storage box which comprises an upper shell, a lower shell, a wall penetrating connector base, a composite pipe and a liquid management device. The wall-penetrating joint seat is arranged on the tank wall in the middle of the storage tank main body; the liquid management device is arranged in the storage box main body and is welded with the wall-penetrating joint seat through a composite pipe; the liquid management device comprises a connecting hard pipe, a corrugated hose and a liquid collector which are sequentially welded. The liquid management device is of a follow-up structure, one end of the liquid management device is connected with the output pipeline of the storage tank, the other end of the liquid management device is provided with the liquid collector with a certain mass, and the liquid collector and the liquid collector are communicated through a flexible pipeline, so that the liquid collector can move along with liquid under the overload effect and is immersed in the liquid all the time, and continuous conveying of the liquid is guaranteed.
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Description

Technical Field

[0001] The present application relates to the technical field of working fluid storage, and in particular to a follow-up outlet type overload sensing storage tank. Background Art

[0002] Currently, most of the liquid management devices that can be used for high-overload maneuvering flight of aircraft are of the physical isolation type. Metal or non-metallic material insulators are set in the tank to isolate the propellant from the pressurized gas, and the pressurized gas drives the insulator to discharge the propellant.

[0003] The isolated storage tanks include diaphragm type, bellows type, bladder (elastic bag) type, and piston type, as shown below: Figure 1 As shown, the operation of this type of tank is not affected by the direction and magnitude of acceleration and is suitable for large maneuvering flights.

[0004] However, this type of storage tank has the following problems during use: 1. A pressurized gas source must be configured; 2. Piston-type and diaphragm-box storage tanks are heavy; 3. Metal diaphragm-type storage tanks have a limited number of uses; 4. Non-metal diaphragm-type storage tanks and bladder (elastic bag)-type storage tanks have a short lifespan, and it is difficult to suppress liquid sloshing. Summary of the invention

[0005] The present application provides a follow-up outlet type overload sensing storage tank, which does not need to set up a separate gas source, is light in weight, has a high volume utilization rate, and can meet long-term storage requirements.

[0006] In order to achieve the above-mentioned purpose, the present application provides a follow-up outlet overload sensing tank, including an upper shell, a lower shell, a through-wall joint seat, a composite pipe and a liquid management device, wherein: the upper shell and the lower shell are welded to form a tank body; the through-wall joint seat is arranged on the tank wall in the middle position of the tank body; the liquid management device is arranged inside the tank body and is welded to the through-wall joint seat through a composite pipe; the liquid management device includes a connecting hard pipe, a corrugated hose and a liquid collector welded in sequence.

[0007] Furthermore, the materials of the upper shell, the lower shell and the through-wall connector seat are all TC4.

[0008] Furthermore, the composite pipe is a titanium-steel composite pipe, which is composited and prepared by using titanium and stainless steel materials through an explosion welding process.

[0009] Furthermore, the material of the connecting hard pipe is stainless steel.

[0010] Furthermore, the corrugated hose is a stainless steel welded corrugated hose, which is prepared by a stainless steel wave plate with a thickness of 0.05-0.3 mm using a vacuum electron beam or micro-beam plasma welding process.

[0011] Furthermore, the liquid collector is an open metal block, the interior of which is through-hole-opened and has holes in the side wall.

[0012] Furthermore, the length of the corrugated hose enables the liquid collector to reach the farthest end inside the tank body.

[0013] Furthermore, under the action of the corrugated hose, the liquid collector moves along with the liquid inside the tank body and is always immersed in the liquid.

[0014] The present application provides a follow-up outlet type overload sensing storage tank, which has the following beneficial effects:

[0015] The present application utilizes the decisive effect of non-zero overload on liquid distribution, relies on the inertia of the object to ensure that the liquid outlet is always immersed in the liquid, and the liquid management device is set as a follow-up structure, one end of which is connected to the tank output pipeline, and the other end is arranged with a liquid collector of a certain mass, and the two are connected by a flexible pipeline, so that the liquid collector can move with the liquid under the action of overload and is always immersed in the liquid, thereby ensuring continuous liquid transportation; and the saturated vapor pressure of the working fluid is used as the boosting gas, without the need to set up a separate gas source, the weight is light, and the volume utilization rate is high; the tank is an all-metal structure as a whole, which can meet the requirements of long-term storage and multiple uses, and there is no need to consider the problem of liquid shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the internal structure of the existing storage tank;

[0018] Figure 2 It is a schematic diagram of the internal structure of a follow-up outlet type overload sensing tank provided according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a follow-up outlet type overload sensing tank liquid management device provided according to an embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of the working principle of the follow-up outlet type overload sensing tank provided in an embodiment of the present application;

[0021] In the figure: 1-upper shell, 2-lower shell, 3-wall-penetrating connector seat, 4-composite pipe, 5-liquid management device, 51-connecting hard pipe, 52-corrugated hose, 53-liquid collector. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0026] In addition, the term "plurality" shall mean two or more.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figure 2-3As shown, the present application provides a follow-up outlet overload sensing tank, including an upper shell 1, a lower shell 2, a through-wall joint seat 3, a composite pipe 4 and a liquid management device 5, wherein: the upper shell 1 and the lower shell 2 are welded to form a tank body; the through-wall joint seat 3 is arranged on the tank wall at the middle position of the tank body; the liquid management device 5 is arranged inside the tank body and is welded to the through-wall joint seat 3 through the composite pipe 4; the liquid management device 5 includes a connecting hard pipe 51, a corrugated hose 52 and a liquid collector 53 welded in sequence.

[0029] Specifically, the follow-up outlet overload sensing tank provided in the embodiment of the present application is based on the overload sensing principle and is mainly used to store and supply non-gas-entrained liquid working fluids for rockets, missiles, fighter jets, etc. By setting a flexible follow-up structure device, under the action of various complex overload situations, the liquid collector always follows the liquid and is immersed in the liquid, thereby ensuring continuous liquid delivery. The tank body is mainly welded by an upper shell 1 and a lower shell 2; a through-wall joint seat 3 is arranged at the middle connection, which is mainly used to fix the liquid management device 5, and is connected with the liquid management device 5 inside the tank through an external output pipeline to realize the transportation of the liquid working medium inside the tank to the outside; the composite pipe 4 is mainly used for connecting the liquid management device 5 with the through-wall joint seat 3 to ensure the stability of the connection; the liquid management device 5 includes a connecting hard pipe 51, a corrugated hose 52 and a liquid collector 53, which are connected in sequence by vacuum electron beam welding. The connecting hard pipe 51 is mainly used for welding with the composite pipe 4, and the liquid collector 53 mainly collects and transports the liquid inside the tank, while the corrugated hose 52 is the main follower structure, that is, one end is fixed by the connecting hard pipe 51, and the other end drives the liquid collector 53 to swing with the liquid inside the tank, so that the liquid collector 53 can always follow the liquid under the overload of the tank, ensuring the discharge of liquid while providing liquid working medium without air inclusion.

[0030] Furthermore, the materials of the upper shell 1, the lower shell 2 and the through-wall joint seat 3 are all TC4. The tank body is a full metal structure, which has a longer life than non-metallic diaphragm tanks and bladder (elastic bag) tanks, and can meet the requirements of long-term storage. It is preferably made of TC4 material, which can meet the requirements of lightweight tanks.

[0031] Furthermore, the composite tube 4 is a titanium-steel composite tube, which is composited and prepared from titanium and stainless steel materials by using an explosion welding process.

[0032] Furthermore, the material of the connecting hard pipe 51 is stainless steel.

[0033] Specifically, the connecting hard pipe 51 is welded and fixed to the through-wall joint seat 3 through the composite pipe 4 to ensure the overall connection strength and performance. The titanium-steel composite pipe is used for welding and fixing, mainly to solve the problem of welding dissimilar metals; the titanium-steel composite pipe adopts the explosive welding process to firmly combine the two different materials of titanium and stainless steel through the huge pressure released instantly, and the room temperature tensile shear strength of the interface can reach 90% of the strength of the parent material, which can meet the requirements of better than 1×10 -9 Pa·m 3 / s leakage rate requirement, the maximum operating temperature can reach 520℃.

[0034] Furthermore, the corrugated hose 52 is a stainless steel welded corrugated hose, which is made of a stainless steel corrugated plate with a thickness of 0.05-0.3 mm by a vacuum electron beam or micro-beam plasma welding process. The corrugated hose 52 is made of a stainless steel corrugated plate with a thickness of 0.05-0.3 mm by a vacuum electron beam or micro-beam plasma welding process, and is subjected to low-temperature stabilization treatment after welding, with a heat treatment temperature of 150°C and a heat preservation time of 4 hours; the corrugated hose 52 obtained in this way can maintain flexibility while effectively avoiding the dead bends and kinks that may occur in the hose during large overload maneuvers.

[0035] Furthermore, the liquid collector 53 is an open metal block, which is connected inside and has holes on the side wall. The liquid collector 53 is made of commonly used metal and is an open metal block structure as a whole, mainly to enable it to sink into the liquid under the action of acceleration. The liquid collector 53 is connected inside and has holes on the side wall, which is not only conducive to the discharge of residual liquid, but also allows the energy of the vortex to be further dissipated, which is conducive to the vortex control inside the tank. In the collection process, the saturated vapor pressure of the working fluid is directly used as the boosting gas, and there is no need to set up a separate gas source. For example, taking liquid ammonia as an example, since liquid ammonia is very volatile, if half of the liquid ammonia is added to the tank, the vapor pressure of the other half is 0.19MPa-3.25MPa at -20℃-+70℃. The vapor pressure of liquid ammonia can be used to drive the liquid discharge, and there is no need to additionally charge the boosting gas. It is light in weight and has a high volume utilization rate.

[0036] Furthermore, the length of the corrugated hose 52 enables the liquid collector 53 to reach the farthest end inside the tank body.

[0037] Furthermore, under the action of the corrugated hose 52, the liquid collector 53 will move with the liquid inside the tank body and will always be immersed in the liquid.

[0038] Specifically, the liquid management device 5 is a follower structure, one end of which is connected to the tank output pipeline through the through-wall joint seat 3, and the other end is provided with a liquid collector 53 of a certain mass, and the two are connected through a stainless steel welded corrugated hose 52, so that the liquid collector 53 can move with the liquid under the flight overload and is always immersed in the liquid. Figure 4 As shown in ae in FIG. 1 , no matter in which direction the tank moves, the liquid collector 53 can be immersed in the liquid at any position of the liquid inside, thereby ensuring continuous liquid transportation.

[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A follow-up outlet type overload sensing tank, comprising an upper shell, a lower shell, a through-wall joint seat, a composite pipe and a liquid management device, wherein: The upper shell and the lower shell are welded to form a tank body: The wall-penetrating joint seat is arranged on the tank wall at the middle position of the tank body; The liquid management device is arranged inside the tank body and is welded to the through-wall joint seat through a composite pipe; The liquid management device comprises a connecting hard pipe, a corrugated hose and a liquid collector which are welded in sequence.

2. The follow-up outlet type overload induction tank according to claim 1 is characterized in that: The upper shell, the lower shell and the through-wall connector seat are all made of TC4.

3. The follow-up outlet type overload sensing tank according to claim 1 is characterized in that: The composite pipe is a titanium-steel composite pipe, which is composited and prepared by using titanium and stainless steel materials through an explosion welding process.

4. The follow-up outlet type overload induction tank according to claim 3 is characterized in that: The material of the connecting hard pipe is stainless steel.

5. The follow-up outlet type overload induction tank according to claim 4 is characterized in that: The corrugated hose is a stainless steel welded corrugated hose, which is prepared by a stainless steel wave plate with a thickness of 0.05-0.3 mm using a vacuum electron beam or micro-beam plasma welding process.

6. The follow-up outlet type overload induction tank according to claim 5 is characterized in that: The liquid collector is an open metal block, the interior of which is through-hole-opened and has holes on the side wall.

7. The follow-up outlet type overload induction tank according to claim 6 is characterized in that: The length of the corrugated hose enables the liquid collector to reach the farthest end inside the tank body.

8. The follow-up outlet type overload induction tank according to claim 7 is characterized in that: Under the action of the corrugated hose, the liquid collector moves along with the liquid inside the tank body and is always immersed in the liquid.