Anti-toppling liquid oxygen supply device

Abstract

The invention relates to the technical field of liquid oxygen supply devices, and discloses an anti-toppling liquid oxygen supply device which comprises a tank body for containing liquid oxygen and further comprises an exhaust outer pipe and an exhaust inner pipe which are arranged outside the tank body, the outer end of the exhaust outer pipe is connected with a first gasification coil pipe, and the outer end of the exhaust inner pipe is connected with a second gasification coil pipe. Outlets of the first gasification coil pipe and the second gasification coil pipe are both communicated with the air outlet pipe, the inner end of the exhaust inner pipe is inserted into the exhaust outer pipe and extends into the tank body together with the inner end of the exhaust outer pipe, and the inner end of the exhaust inner pipe is inserted out of the exhaust outer pipe in the tank body and is connected with an inner pipe extension pipe extending to the lower part of the tank body; the inner end of the exhaust outer pipe is located on the upper portion of the tank body and connected with an outer pipe extension pipe extending to the side edge of the upper portion of the tank body. According to the anti-toppling liquid oxygen supply device, liquid oxygen is prevented from being discharged from the air outlet in the toppling state, and personal safety is efficiently and reliably guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of liquid oxygen supply devices, and in particular to an anti-dumping liquid oxygen supply device. Background Art

[0002] As the altitude increases on the plateau, the oxygen content in the air decreases accordingly. For example, the average altitude of the Qinghai-Tibet Plateau is above 4,000 meters, the air is thin and the air pressure is low, which cannot meet the normal oxygen supply needs of the human body, resulting in hypoxia, causing multifunctional disorders of the body and even endangering life.

[0003] Especially when doing outdoor work, as the physical strength increases, the oxygen consumption increases, which aggravates the plateau hypoxia reaction, significantly reduces physical strength, and makes breathing difficult. Altitude sickness and other diseases cause varying degrees of damage to the human body, and severe hypoxia can even cause death.

[0004] At present, the main oxygen supply devices on the market use gaseous oxygen bags or air concentration to supply oxygen. The disadvantages of these two methods are that they take up a lot of space, have a small oxygen capacity, require an additional power source, and are not convenient to carry around in the field for a long time. Using a liquid oxygen supply can meet the needs of lightness and large capacity.

[0005] However, during use, due to people's constant movement, the liquid oxygen supply device may be inadvertently placed flat or tipped over, so that the gaseous oxygen therein cannot be discharged, which in turn causes the internal pressure of the tank to increase, causing the liquid oxygen in the tank to overflow. Since liquid oxygen is an ultra-low temperature medium, liquid oxygen overflow can easily cause frostbite or other dangers. Therefore, the anti-tip structure of the liquid oxygen supply device plays a vital role in ensuring human safety.

[0006] A Chinese patent (publication date: February 3, 2023, publication number: CN115671588A) discloses a dumping leak-proof liquid oxygen supply device, including a tank body, an exhaust pipe is provided outside the tank body, the exhaust pipe extends into the interior of the tank body, a connector is provided inside the tank body, the connector is provided with an outlet connected to the exhaust pipe, and four air inlets are provided, all of which are connected to the outlets, and the air inlets are connected to air inlet pipes, at least one end of the air inlet pipe is located at the bottom or top of the tank body, and the ends of the other air inlet pipes are located at the top or bottom of the tank body, and the ends of the air inlet pipes are close to the tank wall of the tank body, and are evenly distributed on the ring formed by the downward projection of the end of the air inlet pipe. The dumping leak-proof liquid oxygen supply device of the present invention avoids the overflow of liquid oxygen in the dumping state, and efficiently and reliably ensures personal safety. However, when the exhaust pipe is blocked, the invention may leak liquid oxygen, and at other times, liquid oxygen and gaseous oxygen may be mixed and discharged together. Summary of the invention

[0007] The purpose of the present invention is to provide an anti-dumping liquid oxygen supply device to address the deficiencies of the above-mentioned technology, thereby preventing liquid oxygen from being discharged from the air outlet in a dumping state, and ensuring personal safety efficiently and reliably.

[0008] To achieve the above-mentioned purpose, the anti-dumping liquid oxygen supply device designed in the present invention includes a tank body for accommodating liquid oxygen, and also includes an exhaust outer pipe and an exhaust inner pipe arranged outside the tank body, the outer end of the exhaust outer pipe is connected to a first vaporization coil, the outer end of the exhaust inner pipe is connected to a second vaporization coil, the outlets of the first vaporization coil and the second vaporization coil are both connected to the air outlet pipe, the inner end of the exhaust inner pipe is inserted into the exhaust outer pipe and extends into the interior of the tank body together with the inner end of the exhaust outer pipe, and the inner end of the exhaust inner pipe is inserted out of the tank body, the exhaust outer pipe is connected to an inner pipe extension pipe extending to the lower side of the tank body, and the inner end of the exhaust outer pipe is located at the upper part of the tank body, and is connected to an outer pipe extension pipe extending to the upper side of the tank body.

[0009] Preferably, the ends of the inner tube extension tube and the outer tube extension tube are symmetrically distributed on both sides of the center of the cross section in the projection of the tank cross section, and are both located close to the vertical inner wall of the tank.

[0010] Preferably, a distance is maintained between a portion of the inner exhaust pipe inside the outer exhaust pipe and an inner wall of the outer exhaust pipe.

[0011] Preferably, the positions on the exhaust outer pipe where the exhaust inner pipe is inserted or removed are sealed from the exhaust inner pipe.

[0012] Preferably, in the tank body, a bend joint is provided on the exhaust outer pipe at a position where the exhaust inner pipe is inserted, the exhaust inner pipe is inserted from the bend joint, and the outer pipe extension pipe is connected to the bend joint.

[0013] Preferably, the cross section of the tank body is elliptical, and when the tank body is placed transversely, the ends of the inner tube extension tube and the outer tube extension tube are respectively located at the upper and lower parts, or the lower and upper parts, of the tank body.

[0014] Preferably, the first gasification coil surrounds the outer side of the second gasification coil.

[0015] Preferably, the number of rings of the first gasification coil is smaller than that of the second gasification coil, and the first gasification coil is located in the lower half of the second gasification coil.

[0016] Preferably, the inner diameter of the second gasification coil is greater than the inner diameter of the first gasification coil.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. When the liquid oxygen supply device is tilted to any direction, there should always be an exhaust pipe above the liquid level line to exhaust air and balance the internal air pressure;

[0019] 2. Avoid the spillage of liquid oxygen in the dumping state, and ensure personal safety efficiently and reliably;

[0020] 3. Two vaporization coils ensure that even if liquid oxygen overflows from the tank, it can be vaporized in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a longitudinal cross-sectional schematic diagram of the anti-dumping liquid oxygen supply device of the present invention in the forward direction;

[0022] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0023] Figure 3 for Figure 1 Cross-sectional view of the middle BB;

[0024] Figure 4 It is a schematic diagram of the structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the present invention tilting in another direction.

[0026] The components in the figure are numbered as follows:

[0027] Liquid oxygen 1, tank body 2, exhaust outer pipe 3, exhaust inner pipe 4, first gasification coil 5, second gasification coil 6, gas outlet pipe 7, inner pipe extension pipe 8, outer pipe extension pipe 9, elbow joint 10. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] like Figure 1 to Figure 5 As shown, an anti-dumping liquid oxygen supply device includes a tank body 2 for accommodating liquid oxygen 1, and also includes an exhaust outer pipe 3 and an exhaust inner pipe 4 arranged outside the tank body 2, the outer end of the exhaust outer pipe 3 is connected to a first gasification coil 5, the outer end of the exhaust inner pipe 4 is connected to a second gasification coil 6, the outlets of the first gasification coil 5 and the second gasification coil 6 are both connected to an outlet pipe 7, the inner end of the exhaust inner pipe 4 is inserted into the exhaust outer pipe 3 and extends into the tank body 2 together with the inner end of the exhaust outer pipe 3, and the inner end of the exhaust inner pipe 4 is inserted into the tank body 2. The exhaust outer pipe 4 is connected to an inner pipe extension pipe 8 extending to the lower side of the tank body 2, and the inner end of the exhaust outer pipe 3 is located at the upper part of the tank body 2, and is connected to an outer pipe extension pipe 9 extending to the upper side of the tank body 2.

[0033] In this embodiment, the projection of the end of the inner tube extension tube 8 and the end of the outer tube extension tube 9 on the cross-section of the tank body 2 is symmetrically distributed on both sides of the center of the cross-section, and both are located close to the vertical inner wall of the tank body 2. In this way, when tipping occurs, one of the end of the inner tube extension tube 8 and the end of the outer tube extension tube 9 is always located in the gaseous oxygen.

[0034] When this embodiment is used, Figure 1 and Figure 3 As shown, under normal circumstances, the end of the inner tube extension tube 8 is located in the liquid oxygen 1, and the end of the outer tube extension tube 9 is located in the gaseous oxygen. At this time, the liquid oxygen 1 is vaporized through the second vaporization coil 6, and the gaseous oxygen is directly discharged from the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0035] When dumping occurs, in one case, such as Figure 4 As shown, the end of the inner tube extension tube 8 is located in the liquid oxygen 1, and the end of the outer tube extension tube 9 is located in the gaseous oxygen. At this time, the liquid oxygen 1 is vaporized through the second vaporization coil 6, and the gaseous oxygen is directly discharged from the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0036] In another case, if Figure 5As shown, the end of the inner tube extension tube 8 is located in the gaseous oxygen, and the end of the outer tube extension tube 9 is located in the liquid oxygen 1. At this time, the gaseous oxygen is directly discharged from the second vaporization coil 6, and the liquid oxygen 1 is vaporized through the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0037] Regardless of the state, the overflow of liquid oxygen 1 is avoided.

[0038] Example 2

[0039] like Figure 1 to Figure 5 As shown, an anti-dumping liquid oxygen supply device includes a tank body 2 for accommodating liquid oxygen 1, and also includes an exhaust outer pipe 3 and an exhaust inner pipe 4 arranged outside the tank body 2, the outer end of the exhaust outer pipe 3 is connected to a first gasification coil 5, the outer end of the exhaust inner pipe 4 is connected to a second gasification coil 6, the outlets of the first gasification coil 5 and the second gasification coil 6 are both connected to an outlet pipe 7, the inner end of the exhaust inner pipe 4 is inserted into the exhaust outer pipe 3 and extends into the tank body 2 together with the inner end of the exhaust outer pipe 3, and the inner end of the exhaust inner pipe 4 is inserted into the tank body 2. The exhaust outer pipe 4 is connected to an inner pipe extension pipe 8 extending to the lower side of the tank body 2, and the inner end of the exhaust outer pipe 3 is located at the upper part of the tank body 2, and is connected to an outer pipe extension pipe 9 extending to the upper side of the tank body 2.

[0040] Specifically, in this embodiment, the cross-section of the tank body 2 is elliptical. When the tank body 2 is placed horizontally, the ends of the inner tube extension tube 8 and the outer tube extension tube 9 are respectively located at the upper and lower parts, or the lower and upper parts, of the tank body 2.

[0041] When this embodiment is used, Figure 1 and Figure 3 As shown, under normal circumstances, the end of the inner tube extension tube 8 is located in the liquid oxygen 1, and the end of the outer tube extension tube 9 is located in the gaseous oxygen. At this time, the liquid oxygen 1 is vaporized through the second vaporization coil 6, and the gaseous oxygen is directly discharged from the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0042] When tipping occurs, since the cross section of the tank body 2 is elliptical, it will only tip in two directions. In one case, Figure 4 As shown, the end of the inner tube extension tube 8 is located in the liquid oxygen 1, and the end of the outer tube extension tube 9 is located in the gaseous oxygen. At this time, the liquid oxygen 1 is vaporized through the second vaporization coil 6, and the gaseous oxygen is directly discharged from the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0043] In another case, if Figure 5 As shown, the end of the inner tube extension tube 8 is located in the gaseous oxygen, and the end of the outer tube extension tube 9 is located in the liquid oxygen 1. At this time, the gaseous oxygen is directly discharged from the second vaporization coil 6, and the liquid oxygen 1 is vaporized through the first vaporization coil 5 and finally merged into the gas outlet pipe 7.

[0044] Regardless of the state, the overflow of liquid oxygen 1 is avoided.

[0045] In the above embodiment, a distance is maintained between the portion of the exhaust inner tube 4 inside the exhaust outer tube 3 and the inner wall of the exhaust outer tube 3, so as to facilitate the flow of liquid oxygen and gaseous oxygen. At the same time, the position of the exhaust outer tube 3 where the exhaust inner tube 4 is inserted or removed is sealed with the exhaust inner tube 4, so as to avoid the mixing of liquid oxygen and gaseous oxygen between the exhaust outer tube 3 and the exhaust inner tube 4.

[0046] In the above embodiment, inside the tank body 2, an elbow joint 10 is provided on the exhaust outer pipe 3 at the position where the exhaust inner pipe 4 is inserted, the exhaust inner pipe 4 is inserted from the elbow joint 10, and the outer pipe extension pipe 9 is connected to the elbow joint 10 for easy installation.

[0047] In the above embodiment, the first vaporizing coil 5 surrounds the outside of the second vaporizing coil 6. The number of rings of the first vaporizing coil 5 is smaller than that of the second vaporizing coil 6, and the first vaporizing coil 5 is located in the lower half of the second vaporizing coil 6. The inner diameter of the second vaporizing coil 6 is larger than the inner diameter of the first vaporizing coil 5. This is convenient for most daily situations. The gaseous oxygen is discharged through the exhaust outer pipe 3 and the first vaporizing coil 5, and the liquid oxygen 1 is discharged after being vaporized through the exhaust inner pipe 4 and the second vaporizing coil 6.

[0048] The anti-dumping liquid oxygen supply device of the present invention always maintains an exhaust pipe above the liquid level line when the liquid oxygen supply device dumps to any direction, which plays the role of exhausting air and balancing the internal air pressure; the overflow of liquid oxygen in the dumping state is avoided, and personal safety is efficiently and reliably guaranteed; the two gasification coils ensure that even if liquid oxygen 1 overflows from the tank body 2, it can be gasified in time.

[0049] At the same time, it should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be construed as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are limited only by the scope of the claims. The features of the various embodiments of the present invention may be partially or completely combined or spliced ​​with each other, and may be performed in various different configurations as those skilled in the art may fully understand. The embodiments of the present invention may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0050] For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and the above structures should be regarded as belonging to the protection scope of the present invention.

Claims

1. An anti-dumping liquid oxygen supply device, comprising a tank (2) containing liquid oxygen (1), characterized in that: It also includes an outer exhaust pipe (3) and an inner exhaust pipe (4) arranged outside the tank body (2), the outer end of the outer exhaust pipe (3) is connected to a first gasification coil (5), the outer end of the inner exhaust pipe (4) is connected to a second gasification coil (6), the outlets of the first gasification coil (5) and the second gasification coil (6) are both connected to an outlet pipe (7), the inner end of the inner exhaust pipe (4) is inserted into the outer exhaust pipe (3) and extends into the tank body (2) together with the inner end of the outer exhaust pipe (3), and the inner end of the inner exhaust pipe (4) is inserted into the outer exhaust pipe (3) and extends out of the tank body (2); the outer exhaust pipe (4) is connected to an inner pipe extension pipe (8) extending to the lower side of the tank body (2), and the inner end of the outer exhaust pipe (3) is located at the upper part of the tank body (2) and is connected to an outer pipe extension pipe (9) extending to the upper side of the tank body (2).

2. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The ends of the inner tube extension tube (8) and the outer tube extension tube (9) are symmetrically distributed on both sides of the center of the cross section in the projection of the cross section of the tank body (2), and are both located close to the vertical inner wall of the tank body (2).

3. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: A distance is maintained between the portion of the exhaust inner pipe (4) inside the exhaust outer pipe (3) and the inner wall of the exhaust outer pipe (3).

4. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The position on the exhaust outer pipe (3) where the exhaust inner pipe (4) is inserted or removed is sealed with the exhaust inner pipe (4).

5. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: Inside the tank body (2), a bend pipe joint (10) is provided on the exhaust outer pipe (3) at a position where the exhaust inner pipe (4) is inserted, the exhaust inner pipe (4) is inserted from the bend pipe joint (10), and the outer pipe extension pipe (9) is connected to the bend pipe joint (10).

6. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The cross section of the tank body (2) is elliptical. When the tank body (2) is placed horizontally, the ends of the inner tube extension tube (8) and the outer tube extension tube (9) are respectively located at the upper part and the lower part, or the lower part and the upper part, of the tank body (2).

7. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The first gasification coil (5) surrounds the outer side of the second gasification coil (6).

8. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The number of rings of the first gasification coil (5) is smaller than the number of rings of the second gasification coil (6), and it is located in the lower half of the second gasification coil (6).

9. The anti-dumping liquid oxygen supply device according to claim 1, characterized in that: The inner diameter of the second gasification coil (6) is greater than the inner diameter of the first gasification coil (5).

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