Liquid oxygen filling device

Abstract

The utility model relates to the technical field of liquid oxygen filling, in particular to a liquid oxygen filling device which comprises a filling frame, a plurality of anti-falling pieces, a pipeline combination and a liquid oxygen storage tank, the filling frame is provided with a plurality of U-shaped grooves arranged side by side, one side of a groove opening of each U-shaped groove is fixedly connected with one anti-falling piece, and the pipeline combination is provided with a pipeline. The pipeline combination comprises a leading-out main pipe and a plurality of inflation pipes, one end of the leading-out main pipe is communicated with each inflation pipe, one inflation pipe is arranged on one side of each U-shaped groove, a connector and a chuck are arranged at the end, away from the leading-out main pipe, of each inflation pipe, and the other end of each inflation pipe is detachably connected with the other side of the opening of the corresponding U-shaped groove. According to the liquid oxygen filling device, the oxygen bottle is fixed through the anti-falling piece, the connector is prevented from moving and falling off through the arrangement of the clamping head, and the liquid oxygen filling device has the advantages that the oxygen bottle to be filled is fixed during filling, and the filling connector is not prone to loosening.

Description

Technical Field

[0001] The present application relates to the technical field of liquid oxygen filling, and more specifically to a liquid oxygen filling device. Background Art

[0002] Oxygen cylinders are high-pressure containers used to store and transport oxygen. In order to fill oxygen into oxygen cylinders, liquid oxygen filling devices are now mostly used to fill the liquid oxygen in the liquid oxygen storage tank into the oxygen cylinders.

[0003] There is a liquid oxygen filling device, such as Figure 1 As shown, it includes a liquid oxygen storage tank 90, a lead-out main pipe 91 and a plurality of inflation pipes 92. The discharge outlet of the liquid oxygen storage tank 90 is connected to the lead-out main pipe 91, and the end of the lead-out main pipe 91 facing away from the liquid oxygen storage tank 90 is connected to the plurality of inflation pipes 92. It should be noted that, during filling, the filling personnel directly connect the oxygen cylinder 93 with the inflation pipe 92. It should also be noted that the liquid oxygen storage tank 90 stores liquid oxygen, and when the oxygen cylinder 93 is filled through the inflation pipe 92, compressed oxygen in a gaseous state is filled. Since the oxygen cylinder 93 to be filled is not limited or fixed during the existing filling, the position of the oxygen cylinder 93 may move when the compressed oxygen is filled, posing a safety hazard.

[0004] Therefore, there is a need to provide a liquid oxygen filling device that can fix the oxygen cylinder to be filled during filling and prevent the filling interface from loosening. Summary of the Invention

[0005] The main purpose of the present application is to provide a liquid oxygen filling device for filling an oxygen cylinder, wherein the oxygen cylinder is cylindrical and has a reduced diameter portion on the top of the oxygen cylinder, and the side wall of the reduced diameter portion has an air inlet, wherein the liquid oxygen filling device comprises a filling rack, a plurality of strip-shaped anti-slipping members, a pipeline assembly and a liquid oxygen storage tank, wherein the filling rack has a plurality of U-shaped grooves arranged side by side, and each of the U-shaped grooves is fixedly connected to one side of the notch of the anti-slipping member, and the other end of the anti-slipping member is detachably connected to the other side of the notch of the U-shaped groove, The pipeline combination includes a main outlet pipe and several inflation pipes, one end of the main outlet pipe is connected to each of the inflation pipes, and one side of each U-shaped groove is provided with an inflation pipe. The end of the inflation pipe away from the main outlet pipe is provided with a joint and a clamp. The outlet of the liquid oxygen storage tank is connected to the end of the main outlet pipe away from the inflation pipe. The oxygen cylinder is fixed by an anti-slip part, and the clamp is provided to prevent the joint from moving out. Compared with the existing technology, the oxygen cylinder to be filled can be fixed during filling and the filling interface is not easy to loosen.

[0006] Another object of the present application is to provide a liquid oxygen filling device, wherein the chuck includes a sleeve frame and a supporting member, the sleeve frame is sleeved on the joint, and the supporting member is rotatably installed on one end of the sleeve frame away from the joint. When the supporting member rotates, the supporting member approaches or moves away from the joint, and the two side edges of the sleeve frame jointly press against the reduced diameter portion to achieve fixation of the sleeve frame.

[0007] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a liquid oxygen filling device for filling an oxygen cylinder, wherein the oxygen cylinder is cylindrical and has a reduced diameter portion at the top of the oxygen cylinder, and a side wall of the reduced diameter portion has an air inlet, wherein the liquid oxygen filling device comprises:

[0008] a filling rack having a plurality of U-shaped grooves arranged side by side; and

[0009] A plurality of strip-shaped anti-slip members, each of which is fixedly connected to one side of the U-shaped groove, and the other end of the anti-slip member is detachably connected to the other side of the U-shaped groove; and

[0010] a pipe assembly, the pipe assembly comprising a main outlet pipe and a plurality of inflation pipes, one end of the main outlet pipe being connected to each of the inflation pipes, one side of each of the U-shaped grooves being provided with an inflation pipe, and the end of the inflation pipe facing away from the main outlet pipe being provided with a joint and a chuck; and

[0011] A liquid oxygen storage tank, wherein the outlet of the liquid oxygen storage tank is connected to an end of the outlet main pipe away from the inflation pipe.

[0012] In one or more embodiments of the present application, the chuck includes a sleeve frame and a support member, the sleeve frame is sleeved on the joint, and the support member is rotatably installed on one end of the sleeve frame away from the joint. When the support member rotates, the support member approaches or moves away from the joint.

[0013] In one or more embodiments of the present application, the abutment member is threadedly connected to the sleeve frame, and an end of the abutment member facing away from the joint has a handle portion.

[0014] In one or more embodiments of the present application, each of the inflation tubes is a stainless steel metal hose, and each of the inflation tubes is provided with a hanging ring at one end close to the joint.

[0015] In one or more embodiments of the present application, the filling rack includes a long rod, a plurality of hollow tubes and a plurality of iron sheets. Each of the hollow tubes is arranged perpendicular to the long rod and is grouped in pairs. An iron sheet is provided between the two hollow tubes in each group. The middle section of the iron sheet is arc-shaped, and the two ends of the iron sheet are respectively welded to the two hollow tubes to form the U-shaped groove.

[0016] In one or more embodiments of the present application, the anti-slip component includes two plugs and a chain, and the two ends of the chain are fixedly connected to the two plugs respectively. One of the plugs extends into the hollow tube on one side of the iron sheet and is fixedly connected to the hollow tube, and the other plug is inserted into or removed from the hollow tube on the other side of the iron sheet.

[0017] In one or more embodiments of the present application, the liquid oxygen filling device further includes a plurality of gas filling control devices, and a gas filling control device is provided between each of the filling pipes and the outlet main pipe.

[0018] In one or more embodiments of the present application, the liquid oxygen filling device further includes a liquid oxygen pump and a vaporizer, both of which are connected to the outlet main pipe, and both of which are located between the liquid oxygen storage tank and the filling rack, and the liquid oxygen pump is located on the side of the vaporizer away from the filling rack.

[0019] In one or more embodiments of the present application, the liquid oxygen filling device also includes a vacuum pump and a recovery bottle, the inlet of the vacuum pump is connected to the outlet main pipe, and the vacuum pump is located on the side of the filling rack away from the vaporizer, the outlet of the vacuum pump is connected to the recovery bottle, and a vacuum valve is provided on the outlet main pipe between the vacuum pump and the filling rack.

[0020] The cam is provided with a plurality of U-shaped grooves, each of which is fixed with an anti-slip part on one side of the U-shaped groove, and the other end of the anti-slip part is detachably connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. The cam is provided with a plurality of U-shaped grooves, each of which is connected to the other side of the U-shaped groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] These and / or other aspects and advantages of the present application will become more clear and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0022] Figure 1 The figure shows a structural schematic diagram of an existing liquid oxygen filling device;

[0023] Figure 2 The figure shows a structural schematic diagram of an existing oxygen cylinder;

[0024] Figure 3 The figure shows a structural diagram of the gas filling pipe of a liquid oxygen filling device of the present invention;

[0025] Figure 4 The figure shows a structural schematic diagram of a liquid oxygen filling device of the present invention. DETAILED DESCRIPTION

[0026] The terms and words used in the following description and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustration purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0028] Although ordinal numbers such as "first," "second," and the like will be used to describe various components, these are not intended to limit those components. The terms are used solely to distinguish one component from another. For example, a first component could be referred to as a second component, and similarly, a second component could be referred to as a first component without departing from the teachings of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0029] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular is intended to include the plural, unless the context clearly indicates otherwise. It will also be understood that the terms "comprising" and / or "having" when used in this specification specify the presence of a stated feature, number, step, operation, component, element, or combination thereof, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0030] Schematic liquid oxygen filling device, reference Figures 3 and 4 According to a preferred embodiment of the present invention, a liquid oxygen filling device is used to fill Figure 2 The oxygen cylinder 80 shown in FIG. 8 is cylindrical and has a reduced diameter portion 801 on the top. The side wall of the reduced diameter portion 801 has an air inlet 802. Figure 3 and Figure 4 As shown, the liquid oxygen filling device includes a filling rack 10, a plurality of strip-shaped anti-dropping parts 20, a pipeline assembly 30 and a liquid oxygen storage tank 40.

[0031] Specifically, if Figure 3 As shown, the filling rack 10 has several U-shaped grooves 103A arranged side by side; one side of each of the U-shaped grooves 103A is fixedly connected to an anti-slip component 20, and the other end of the anti-slip component 20 is detachably connected to the other side of the U-shaped groove 103A; the pipeline assembly 30 includes a main outlet pipe 301 and several inflation tubes 302, one end of the main outlet pipe 301 is connected to each of the inflation tubes 302, and one side of each of the U-shaped grooves 103A is provided with an inflation tube 302, and the end of the inflation tube 302 facing away from the main outlet pipe 301 is provided with a joint 303 and a chuck 304; the outlet of the liquid oxygen storage tank 40 is connected to the end of the main outlet pipe 301 facing away from the inflation tube 302.

[0032] More specifically, if Figure 3 As shown, the filling rack 10 includes a long bar 101, a plurality of hollow tubes 102 and a plurality of iron sheets 103. Each of the hollow tubes 102 is arranged perpendicular to the long bar 101 and is grouped in pairs. An iron sheet 103 is provided between the two hollow tubes 102 in each group. The middle section of the iron sheet 103 is arc-shaped, and the two ends of the iron sheet 103 are respectively welded to the two hollow tubes 102 to form the U-shaped groove 103A.

[0033] In addition, if Figure 3 As shown, the anti-slip component 20 includes two plugs 201 and a chain 202, and the two ends of the chain 202 are fixedly connected to the two plugs 201 respectively. One plug 201 extends into the hollow tube 102 on one side of the iron sheet 103 and is fixedly connected to the hollow tube 102, and the other plug 201 is inserted into or removed from the hollow tube 102 on the other side of the iron sheet 103.

[0034] It should be noted that, under normal circumstances, one end of the anti-slip component 20 is separated from the filling rack 10, that is, the plug 201 is normally out of the hollow tube 102 on one side of the iron sheet 103, so that the notch of the U-shaped groove 103A is open. When filling, the bottle body of the oxygen cylinder 80 is placed in the U-shaped groove 103A and abuts against the bottom of the U-shaped groove 103A. Subsequently, the end of the anti-slip component 20 that was originally separated from the filling rack 10 is connected to the filling rack 10, that is, the plug 201 is inserted into the hollow tube 102, and then the anti-slip component 20 closes the notch of the U-shaped groove 103A. It should also be noted that at this time, the anti-slip component 20 is just in contact with the oxygen cylinder 80. The bottle body of the oxygen cylinder 80 fits together, and the bottle body of the oxygen cylinder 80 fits together with the groove wall of the U-shaped groove 103A; in addition, by providing the clamp 304, it is ensured that when the connector 303 is connected to the air inlet 802 of the oxygen cylinder 80, the positions of the connector 303 and the air inlet 802 are not easy to move. It is obvious that compared with the prior art, the embodiment of the present application has the advantages of fixing the oxygen cylinder 80 to be filled during filling and the filling interface is not easy to loosen; it should also be noted that when the oxygen cylinder 80 is fixed in the U-shaped groove 103A and the air inlet 802 is connected with the connector 303, the filling of the oxygen cylinder 80 is achieved by opening the valves on the outlet main pipe 301 and the filling pipe 302.

[0035] Furthermore, in order to achieve the function of fixing and preventing the connector 303 by the clamp 304, as shown in FIG. Figure 3 As shown, the chuck 304 includes a sleeve frame 3041 and a supporting member 3042. The sleeve frame 3041 is sleeved on the joint 303, and the supporting member 3042 is rotatably installed on one end of the sleeve frame 3041 away from the joint 303. When the supporting member 3042 rotates, the supporting member 3042 approaches or moves away from the joint 303.

[0036] It should be noted that if Figure 3As shown, the sleeve frame 3041 is diamond-shaped as a whole, and the abutting member 3042 is a screw. The abutting member 3042 is threadedly connected to the sleeve frame 3041, and the end of the abutting member 3042 facing away from the joint 303 has a handle portion 3043. Before connecting the joint 303 to the air inlet 802, the sleeve frame 3041 is located directly above the reduced diameter portion 801. At this time, the projection of the abutting member 3042 in the height direction does not overlap with the reduced diameter portion 801. The sleeve frame 3041 is translated downward, and the joint 303 is aligned with the air inlet 802. , and connect the connector 303 to the air inlet 802. Subsequently, by rotating the handle portion 3043, the abutting member 3042 is gradually brought close to the reduced diameter portion 801, and at a certain moment is pressed against the reduced diameter portion 801. At this time, the side surface of the reduced diameter portion 801 is abutted by the abutting member 3042 and the two sides of the sleeve frame 3041, thereby fixing the sleeve frame 3041 on the reduced diameter portion 801. The connector 303 extending into the air inlet 802 has no space to move in the axial direction of the air inlet 802, thereby fixing and preventing the connector 303 from falling off.

[0037] In addition, in the embodiment of the present application, each of the inflation tubes 302 is a stainless steel metal hose, which has good corrosion resistance, high and low temperature resistance, flexibility and elasticity.

[0038] Furthermore, in order to prevent the inflation tube 302 from naturally sagging under the action of gravity, so that the filling personnel cannot pick up the inflation tube 302 in the first time, each inflation tube 302 is provided with a hanging ring 305 at one end close to the joint 303. The hanging ring 305 is tied at one end of a rope, and the other end is tied to an external high frame, so that the filling personnel can pick up the inflation tube 302 in the first time.

[0039] Furthermore, in the embodiments of the present application, Figure 3 and Figure 4As shown, the liquid oxygen filling device also includes a plurality of gas filling control devices 306, and a gas filling control device 306 is provided between each of the filling pipes 302 and the outlet main pipe 301. Specifically, the gas inlet 802 of the gas filling control device 306 is connected to the outlet main pipe 301 through a pipeline, and the gas outlet of the gas filling control device 306 is connected to the filling pipe 302. The gas flow rate during filling is regulated by the gas filling control device 306. Since the gas filling control device 306 is technologically mature and widely used on the market, the specific structure and model of the gas filling control device 306 are not described here. The gas filling control device 306 includes but is not limited to the control device for gas flow of pressurized gas cylinder filling that can regulate the gas flow as disclosed in the patent document (CN214171938U).

[0040] In addition, in the embodiments of the present application, Figure 4 As shown, the liquid oxygen filling device also includes a liquid oxygen pump 50 and a vaporizer 60, which are both connected to the outlet main pipe 301, and are both located between the liquid oxygen storage tank 40 and the filling rack 10, and the liquid oxygen pump 50 is located on the side of the vaporizer 60 away from the filling rack 10, that is, the inlet of the liquid oxygen pump 50 and the outlet of the liquid oxygen storage tank 40 are connected through a section of the outlet main pipe 301, and the outlet of the liquid oxygen pump 50 and the inlet of the vaporizer 60 are connected through the outlet main pipe 301 at the other end, and the outlet of the vaporizer 60 is connected to the air inlet 802 of the gas filling control device 306.

[0041] It should be noted that the liquid oxygen is transported from the outlet of the liquid oxygen storage tank 40 to the outlet main pipe 301 by the liquid oxygen pump 50, and the liquid oxygen is vaporized into gas by the vaporizer 60 and sent to the gas filling control device 306, and finally poured into the oxygen cylinder 80 along the inflation pipe 302.

[0042] In addition, if Figure 4 As shown, the liquid oxygen filling device also includes a vacuum pump 701 and a recovery bottle 702. The inlet of the vacuum pump 701 is connected to the outlet main pipe 301, and the vacuum pump 701 is located on the side of the filling rack 10 away from the vaporizer 60. The outlet of the vacuum pump 701 is connected to the recovery bottle 702 through a pipeline. A vacuum valve 703 is provided on the outlet main pipe 301 between the vacuum pump 701 and the filling rack 10.

[0043] It should be noted that the vacuum pump 701 provides conditions for recovering and evacuating the residual gas in the outlet main pipe 301 before filling, and the recovery bottle 702 is used to store the recovered residual gas.

[0044] In summary, the liquid oxygen filling device based on the embodiment of the present application is explained, which provides the liquid oxygen filling device with advantages such as fixing the oxygen cylinder to be filled during filling and the filling interface is not easy to loosen.

[0045] It is worth mentioning that in the embodiments of the present application, the liquid oxygen filling device has a simple structure, does not involve complex manufacturing processes and expensive materials, and is highly economical. Furthermore, for manufacturers, the liquid oxygen filling device provided in the present application is easy to produce and low in cost, which is more conducive to controlling production costs and further facilitating product promotion and use.

[0046] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from these principles.

Claims

1. A liquid oxygen filling device for filling an oxygen cylinder, wherein the oxygen cylinder is cylindrical and has a reduced diameter portion at the top and an air inlet on the sidewall of the reduced diameter portion, characterized in that: The liquid oxygen filling device comprises a filling rack having a plurality of U-shaped grooves arranged side by side; and A plurality of strip-shaped anti-slip pieces, each of which is fixedly connected to one side of the U-shaped groove, and the other end of the anti-slip piece is detachably connected to the other side of the U-shaped groove; and a pipe assembly, the pipe assembly comprising a main outlet pipe and a plurality of inflation pipes, one end of the main outlet pipe being connected to each of the inflation pipes, one side of each of the U-shaped grooves being provided with an inflation pipe, and the end of the inflation pipe facing away from the main outlet pipe being provided with a joint and a chuck; and A liquid oxygen storage tank, wherein the outlet of the liquid oxygen storage tank is connected to an end of the outlet main pipe away from the inflation pipe.

2. The liquid oxygen filling device according to claim 1, characterized in that: The chuck includes a sleeve frame and a supporting member. The sleeve frame is sleeved on the joint, and the supporting member is rotatably installed on one end of the sleeve frame away from the joint. When the supporting member rotates, the supporting member approaches or moves away from the joint.

3. The liquid oxygen filling device according to claim 2, characterized in that: The abutting member is threadedly connected to the sleeve frame, and one end of the abutting member facing away from the joint is provided with a handle portion.

4. The liquid oxygen filling device according to claim 3, characterized in that: Each of the inflatable tubes is a stainless steel metal hose, and a hanging ring is provided at one end of each inflatable tube close to the joint.

5. The liquid oxygen filling device according to claim 4, characterized in that: The filling rack includes a long rod, several hollow tubes and several iron sheets. Each of the hollow tubes is arranged perpendicular to the long rod and is grouped in pairs. An iron sheet is provided between the two hollow tubes in each group. The middle section of the iron sheet is arc-shaped, and the two ends of the iron sheet are respectively welded to the two hollow tubes to form the U-shaped groove.

6. The liquid oxygen filling device according to claim 5, characterized in that: The anti-slip component includes two plugs and a chain, and the two ends of the chain are fixedly connected to the two plugs. One plug extends into a hollow tube on one side of the iron sheet and is fixedly connected to the hollow tube, and the other plug is inserted into or removed from the hollow tube on the other side of the iron sheet.

7. The liquid oxygen filling device according to claim 6, characterized in that: The liquid oxygen filling device also includes a plurality of gas filling control devices, and a gas filling control device is provided between each of the filling pipes and the outlet main pipe.

8. The liquid oxygen filling device according to claim 7, characterized in that: The liquid oxygen filling device also includes a liquid oxygen pump and a vaporizer, both of which are connected to the outlet main pipe, and both of which are located between the liquid oxygen storage tank and the filling rack, and the liquid oxygen pump is located on the side of the vaporizer away from the filling rack.

9. The liquid oxygen filling device according to claim 8, characterized in that: The liquid oxygen filling device also includes a vacuum pump and a recovery bottle. The inlet of the vacuum pump is connected to the outlet main pipe, and the vacuum pump is located on the side of the filling rack away from the vaporizer. The outlet of the vacuum pump is connected to the recovery bottle. A vacuum valve is provided on the outlet main pipe between the vacuum pump and the filling rack.

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