Single-liquid-phase gas cylinder

Abstract

The utility model discloses a single-liquid-phase gas cylinder, which relates to the technical field of single-liquid-phase gas cylinders and comprises a liquid-phase gas cylinder body, a liquid-phase valve is fixedly connected to the liquid-phase gas cylinder body, a copper shell is in threaded connection with the inner wall of the liquid-phase valve, a first one-way valve shell is inserted into the inner wall of the copper shell, and a cross-shaped base is fixedly connected to one side of the first one-way valve shell. A first one-way valve element is slidably connected to the inner wall of the cross-shaped base. By arranging the liquid-phase gas cylinder body, the liquid-phase valve, the copper shell, the first one-way valve shell, the cross-shaped base, a first one-way valve element, a first O-shaped sealing ring, a first stainless steel spring, a first sealing ring, a second one-way valve shell, a Y-shaped base, a second stainless steel spring, a second O-shaped sealing ring, a second sealing ring and a second one-way valve element, safe use of the liquid-phase gas cylinder body can be effectively guaranteed; the problem that a bottle body is heated due to the fact that large heat is generated in the filling process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to single liquid phase gas cylinder technical field, specifically a single liquid phase gas cylinder. BACKGROUND

[0002] Single liquid phase gas cylinder is a kind of pressure vessel specially used for storing gas, and low-temperature liquefied petroleum gas is stored in its internal sealing space.The storage of low-temperature liquefied petroleum gas in the internal sealing space of single liquid phase gas cylinder will cause the change of internal pressure with the change of temperature.Common single liquid phase gas cylinders include liquefied petroleum gas cylinder, liquefied dimethyl ether cylinder and steel welded gas cylinder, and the main material of these gas cylinders is generally high-quality gas cylinder steel, which has the advantages of high strength, good plasticity and toughness, etc.

[0003] Since liquefied petroleum gas cylinder and liquefied petroleum gas cylinder valve are national mandatory standards, their structure and form cannot be changed.The single liquid phase gas cylinder modified compulsorily simplifies the structure of the cylinder, avoids the safety risk caused by the incorrect connection of the user, but also brings inconvenience and safety hazard to the cylinder during filling and use: since a common interface is used, when filling liquefied petroleum gas, the liquefied gas filled into the cylinder needs to enter the cylinder through a siphon pipe, and as the amount of the filled liquid increases, the air in the gas phase space in the cylinder is compressed by the liquid, causing the internal pressure of the cylinder to increase, thereby slowing down the filling speed, and as more liquefied gas enters, the internal pressure gradually increases until it balances with the filling pressure, so that only about 80% of the design capacity of the cylinder can be filled with liquefied petroleum gas;and the maximum allowable filling capacity of the cylinder cannot be reached, then the resistance of filling increases, causing a large amount of heat to be generated in the cylinder during filling, which causes the cylinder body to heat up, thereby affecting the safe use of the cylinder;Therefore, we provide a single liquid phase gas cylinder to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a single liquid phase gas cylinder to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a single liquid phase gas cylinder, comprising a liquid phase gas cylinder body, the liquid phase gas cylinder body is fixedly connected with a liquid phase valve, the inner wall of the liquid phase valve is threadedly connected with a copper shell, the inner wall of the copper shell is inserted with a one-way valve shell one, one side of the one-way valve shell one is fixedly connected with a cross base, the inner wall of the cross base is slidably connected with a one-way valve core one, an O-shaped sealing ring one is arranged between the one-way valve core one and the one-way valve shell one, a sealing ring one is arranged between the copper shell and the one-way valve shell one, the cross base is fixedly connected with a stainless steel spring one, the stainless steel spring one is fixedly connected with a copper valve core one, the liquid phase valve is communicated with a common interface, the close cooperation between components ensures the safe use of the liquid phase gas cylinder body.

[0006] Preferably, the inner wall of the copper shell is inserted with a one-way valve shell two, one side of the one-way valve shell two is fixedly connected with a Y-shaped base, the Y-shaped base can provide support for the stainless steel spring two.

[0007] Preferably, the Y-shaped base is fixedly connected with the stainless steel spring two, the stainless steel spring two is fixedly connected with a one-way valve core two, the one-way valve core two is slidingly connected to the inner wall of the Y-shaped base, and the one-way valve core two is arranged to ensure the stability of the liquid-phase gas cylinder body during filling of low-temperature liquefied gas.

[0008] Preferably, an O-shaped sealing ring two is arranged between the one-way valve shell two and the one-way valve core two, and the O-shaped sealing ring two is arranged to increase the sealing effect.

[0009] Preferably, a sealing ring two is arranged between the one-way valve shell two and the copper shell, and the sealing ring two is arranged to increase the frictional resistance.

[0010] Preferably, the liquid-phase gas cylinder body is inserted into the inner wall of the annular base, the bottom of the annular base is fixedly connected with a universal wheel, and the universal wheel is arranged to enable the annular base to move flexibly.

[0011] Preferably, the outer circumferential surface of the annular base is fixedly connected with a threaded plate, the inner wall of the threaded plate is threadedly connected with the outer circumferential surface of a one-way screw, one end of the one-way screw is fixedly connected with an anti-skid base plate, and the anti-skid base plate is arranged to increase the frictional resistance with the ground.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. By arranging the liquid-phase gas cylinder body, the liquid-phase valve, the copper shell, the one-way valve shell one, the hexagonal base, the one-way valve core one, the O-shaped sealing ring one, the stainless steel spring one, the sealing ring one, the one-way valve shell two, the Y-shaped base, the stainless steel spring two, the O-shaped sealing ring two, the sealing ring two and the one-way valve core two, the safe use of the liquid-phase gas cylinder body can be effectively ensured, and the problem that a relatively large amount of heat is generated during filling and the bottle body is heated is solved.

[0014] 2. By arranging the anti-skid base plate, the common interface, the annular base, the universal wheel, the threaded plate and the one-way screw, the safety risk problem caused by incorrect connection of the interface by the user is solved, the liquid-phase gas cylinder body can be moved by the user, the liquid-phase gas cylinder body can be stably displaced, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the application;

[0016] Figure 2 It is a cross-sectional structure schematic view of the liquid-phase valve of the application;

[0017] Figure 3 This is a cross-sectional structural diagram of the copper outer shell of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the housing of the one-way valve of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the annular base of this utility model.

[0020] The following are the labels in the diagram: 1. Liquid phase gas cylinder body; 2. Liquid phase valve; 3. Copper outer shell; 4. One-way valve shell 1; 5. Cross base; 6. One-way valve core 1; 7. O-ring 1; 8. Stainless steel spring 1; 9. Sealing ring 1; 10. One-way valve shell 2; 11. Y-type base; 12. Stainless steel spring 2; 13. O-ring 2; 14. Sealing ring 2; 15. One-way valve core 2; 16. Anti-slip pad; 17. Common interface; 18. Annular base; 19. Caster wheel; 20. Threaded plate; 21. One-way screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, this utility model provides a technical solution for a single liquid phase gas cylinder, including a liquid phase gas cylinder body 1. The liquid phase gas cylinder body 1 is mainly used to store low-temperature liquefied gas. The liquid phase gas cylinder body 1 is a known prior art and will not be described in detail in this application. The liquid phase gas cylinder body 1 is inserted into the inner wall of an annular base 18. The annular base 18 can effectively position the liquid phase gas cylinder body 1, so that the liquid phase gas cylinder body 1 can be stably placed inside the annular base 18.

[0023] A threaded plate 20 is fixedly connected to the outer circumference of the annular base 18. The inner wall of the threaded plate 20 is threadedly connected to the outer circumference of the one-way screw 21. The tight fit between the threaded plate 20 and the one-way screw 21 allows the one-way screw 21 to rotate when the threaded plate 20 remains stable. This changes the position of the one-way screw 21 and causes the anti-slip pad 16 to move accordingly. One end of the one-way screw 21 is fixedly connected to the anti-slip pad 16. As the anti-slip pad 16 moves, the surface with anti-slip texture will come into close contact with the ground, thus increasing friction and preventing the annular base 18 from sliding arbitrarily.

[0024] The bottom of the annular base 18 is fixedly connected with four casters 19. The casters 19 allow the annular base 18 to move flexibly, solving the problem that the liquid phase gas cylinder body 1 is too heavy and inconvenient to transport.

[0025] A liquid phase valve 2 is fixedly connected to the liquid phase gas cylinder body 1. The liquid phase valve 2 is mainly used to control the flow of liquefied gas in the liquid phase gas cylinder body 1. The liquid phase valve 2 allows liquefied gas to flow out or in from the liquid phase gas cylinder body 1 to meet the requirements of combustion, heating or other processes. When the liquid phase valve 2 is open, the low temperature liquefied gas in the liquid phase gas cylinder body 1 enters through the liquid phase valve 2. When closed, it prevents the liquefied gas from continuing to flow, ensuring the safety of the liquid phase gas cylinder body 1. The liquid phase valve 2 is a known technology and will not be described in detail.

[0026] The inner wall of the liquid phase valve 2 is threaded with a copper outer shell 3. The copper outer shell 3 can also be made of iron. In this application, copper material is preferred for the outer shell. The copper outer shell 3 can be freely removed and placed according to actual needs through the threaded design between the liquid phase valve 2 and the copper outer shell 3. A one-way valve outer shell 2 10 is inserted into the inner wall of the copper outer shell 3. A sealing ring 2 14 is provided between the one-way valve outer shell 2 10 and the copper outer shell 3. The sealing ring 2 14 is usually designed with an outer diameter slightly larger than the inner diameter of the copper outer shell 3 to achieve a sealing effect. In addition, the elasticity of the rubber and the inner wall surface of the copper outer shell 3 form a large frictional resistance, thus ensuring that the one-way valve outer shell 2 10 is stably located inside the copper outer shell 3.

[0027] An O-ring 13 is provided between the one-way valve housing 2 10 and the one-way valve core 2 15. Under the action of the rebound force of the stainless steel spring 2 12, the O-ring 13 will press against the one-way valve housing 2 10, thereby deforming to fill the gap and achieve a sealing effect. A Y-shaped base 11 is fixedly connected to one side of the one-way valve housing 2 10. The Y-shaped base 11 is fixedly connected to the stainless steel spring 2 12, and the stainless steel spring 2 12 is fixedly connected to the one-way valve core 2 15. The one-way valve core 2 15 is slidably connected to the inner wall of the Y-shaped base 11. The Y-shaped base 11 will apply a position control effect to the one-way valve core 2 15, ensuring that the one-way valve core 2 15 can move stably. At the same time, the Y-shaped base 11 can also act as a support plate for the stainless steel spring 2 12 without obstructing the passage of cryogenic liquefied gas. The stainless steel spring 2 12 can use its elastic characteristics to push the one-way valve core 2 15 against the one-way valve housing 2 10.

[0028] A one-way valve housing 4 is inserted into the inner wall of the copper housing 3. A cross base 5 is fixedly connected to one side of the one-way valve housing 4. A one-way valve core 6 is slidably connected to the inner wall of the cross base 5. The purpose of setting the cross base 5 is to apply a position control effect to the one-way valve core 6, thereby ensuring that the movement direction of the one-way valve core 6 will not tilt or jam.

[0029] An O-ring 7 is provided between the one-way valve core 6 and the one-way valve housing 4. The O-ring 7 fills the gap between the one-way valve core 6 and the one-way valve housing 4, preventing air leakage. A sealing ring 9 is provided between the copper housing 3 and the one-way valve housing 4. The sealing ring 9 increases the friction between the copper housing 3 through its rebound effect, thus ensuring that the one-way valve housing 4 will not easily slide out of the copper housing 3. It is fixedly connected to the cross base 5 and the stainless steel spring 8. The stainless steel spring 8 is fixedly connected to the one-way valve core 6. The stainless steel spring 8 provides force for the movement of the one-way valve core 6. The liquid phase valve 2 is connected to a common interface 17, which is the inlet and outlet position of the gas in the liquid phase gas cylinder body 1.

[0030] Working principle: After installing this device, during filling, the liquid phase valve 2 is opened, and the liquefied gas enters through the common interface 17. Because the one-way valve core 15 at the top of the siphon tube is closed under pressure, the incoming gas pushes open the three one-way valve cores 6 on the side, allowing the gas to enter the liquid phase gas cylinder body 1 from three directions from top to bottom. This prevents compression of the gas phase space inside the liquid phase gas cylinder body 1, ensuring the filling process is unaffected by internal pressure changes. It allows for relatively rapid filling to the maximum allowable capacity of the liquid phase gas cylinder body 1, and the liquid phase gas cylinder body 1 does not generate heat during the filling process. During discharging, the liquefied gas, under pressure, pushes open the siphon tube. The top one-way valve core 15 and the three side one-way valve cores 6 are closed under pressure. Gas is discharged from the common interface 17 through the siphon tube and the liquid phase valve 2. Finally, by placing the liquid phase gas cylinder body 1 as a whole in the annular base 18, the gas cylinder body 1 can be moved freely and flexibly by the universal wheels 19, so as to achieve the purpose of moving the gas cylinder body 1 quickly. At the same time, by manually turning the one-way screw 21, the anti-slip pad 16 will continue to move downward under the action of the threaded plate 20, and under the continuous force, it will contact the ground and generate a large frictional resistance, thereby inhibiting the movement of the annular base 18 and ensuring the stability of the gas cylinder body 1 in the annular base 18.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A single-phase liquid gas cylinder, comprising a liquid gas cylinder body (1), characterized in that: The liquid phase gas cylinder body (1) is fixedly connected to a liquid phase valve (2). The inner wall of the liquid phase valve (2) is threadedly connected to a copper outer shell (3). A one-way valve outer shell (4) is inserted into the inner wall of the copper outer shell (3). A cross base (5) is fixedly connected to one side of the one-way valve outer shell (4). A one-way valve core (6) is slidably connected to the inner wall of the cross base (5). An O-ring (7) is provided between the one-way valve core (6) and the one-way valve outer shell (4). A sealing ring (9) is provided between the copper outer shell (3) and the one-way valve outer shell (4). The cross base (5) is fixedly connected to a stainless steel spring (8). The stainless steel spring (8) is fixedly connected to the one-way valve core (6). The liquid phase valve (2) is connected to a common interface (17).

2. A single-liquid-phase gas cylinder according to claim 1, characterized in that: The inner wall of the copper outer shell (3) is fitted with a one-way valve outer shell (10), and a Y-shaped base (11) is fixedly connected to one side of the one-way valve outer shell (10).

3. A single-liquid phase gas cylinder according to claim 2, characterized in that: The Y-shaped base (11) is fixedly connected to the stainless steel spring (12), the stainless steel spring (12) is fixedly connected to the one-way valve core (15), and the one-way valve core (15) is slidably connected to the inner wall of the Y-shaped base (11).

4. A single-liquid-phase gas cylinder according to claim 2, characterized in that: An O-ring (13) is provided between the one-way valve housing (10) and the one-way valve core (15).

5. A single-liquid-phase gas cylinder according to claim 2, characterized in that: A sealing ring 2 (14) is provided between the one-way valve housing 2 (10) and the one-way housing (3).

6. A single-liquid-phase gas cylinder according to claim 1, characterized in that: The liquid phase gas cylinder body (1) is inserted into the inner wall of the annular base (18), and the bottom of the annular base (18) is fixedly connected with a universal wheel (19).

7. A single-liquid-phase gas cylinder according to claim 6, characterized in that: The outer circumferential surface of the annular base (18) is fixedly connected to a threaded plate (20), the inner wall of the threaded plate (20) is threadedly connected to the outer circumferential surface of the one-way screw (21), and one end of the one-way screw (21) is fixedly connected to an anti-slip pad (16).

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