Steel cylinder joint protection system and steel cylinder gas supply system

Abstract

The utility model provides a steel cylinder joint protection system and a steel cylinder gas supply system, and belongs to the technical field of gas storage. The system comprises a protection device, the protection device comprises a fixing structure and a protection sleeve, the fixing structure is fixed to a gas outlet pipeline of the steel cylinder, a gas cavity is formed between the protection sleeve and the fixing structure, and a reset piece is further arranged between the protection sleeve and the fixing structure and used for keeping the protection sleeve and the fixing structure in a first state; the driving air inlet pipeline comprises an electromagnetic valve, the electromagnetic valve is provided with a first air inlet, a first air outlet and a first exhaust port, the first air inlet is communicated with a first driving air source, the first air outlet is communicated with the air cavity, the first exhaust port is communicated with the outside, and the electromagnetic valve is used for forming a state that the first air inlet is communicated with the first air outlet so as to push the protective sleeve to move; the electromagnetic valve is further used for forming the state that the first air outlet communicates with the first exhaust port, so that the first state is formed. The steel cylinder replacing device can save labor force and improve the steel cylinder replacing efficiency.

Description

Technical Field

[0001] This application relates to the technical field of gas storage, and particularly to a cylinder joint protection system and a cylinder gas supply system. Background Art

[0002] Ultra-high purity gas supply cabinets store cylinders for storing gas. When the gas in the cylinder is used up, the cylinder needs to be replaced because the joints of the cylinders are usually set to be detachable. However, since the replacement cycle of the cylinders is generally long, when there are multiple cylinders stored in the ultra-high purity gas supply cabinet, there is a risk of misplacing the cylinders. Therefore, a protective device is provided at the joint of the existing cylinders to prevent accidental disassembly.

[0003] In some prior arts, a physical protection device is provided at the joint of the cylinder, such as a protective cover or a joint locking device, and special tools are required to remove the cylinder. However, this kind of protection device requires the staff to carry additional special tools to release the protection device at the joint first, resulting in laborious disassembly and low efficiency. Summary of the Utility Model

[0004] An object of the present utility model is to provide a cylinder joint protection system that can save labor and improve the replacement efficiency of cylinders.

[0005] Another object of the present utility model is to ensure that the cylinder joint can be normally disassembled or connected even when power is off.

[0006] A further object of the present utility model is to simplify the assembly and disassembly of the protection device.

[0007] In particular, the present application proposes a cylinder joint protection system, comprising:

[0008] A protection device, which includes a fixed structure and a protection sleeve sleeved outside the fixed structure. The fixed structure is fixed on the outlet pipeline at the cylinder joint. An air cavity is formed between the protection sleeve and the fixed structure. A reset member is also provided between the protection sleeve and the fixed structure for maintaining the protection sleeve and the fixed structure in a first state;

[0009] The driving air inlet pipeline includes a solenoid valve which has a first air inlet, a first air outlet and a first exhaust port. The first air inlet is communicated with a first driving air source, the first air outlet is communicated with the air cavity, and the first exhaust port is communicated with the outside. The solenoid valve is used to form a state where the first air inlet is communicated with the first air outlet to push the protection sleeve to move, so that the protection sleeve and the fixed structure form a second state. The solenoid valve is also used to form a state where the first air outlet is communicated with the first exhaust port to form the first state. One of the first state and the second state is a state where the protection sleeve extends relative to the fixed structure and shields the cylinder joint, and the other is a state where the protection sleeve retracts relative to the fixed structure and exposes the cylinder joint.

[0010] Further, the cylinder joint protection system further includes a protection air inlet pipeline which includes a manual valve. The manual valve has a second air inlet, a second air outlet and a second exhaust port. The second air inlet is communicated with a second driving air source, the second air outlet is communicated with the first exhaust port, and the second exhaust port is communicated with the outside.

[0011] Further, a pressure regulating valve and a pressure sensor are further provided between the first driving air source and the solenoid valve.

[0012] Further, the fixed structure includes a fixed inner sleeve and two clamping blocks arranged in the fixed inner sleeve. The two clamping blocks are arranged oppositely along the radial direction of the fixed inner sleeve and are arranged to be relatively far away or close to each other. Grooves are provided on the opposite sides of the two clamping blocks, and the two grooves are matched with the outer shape of the air outlet pipeline.

[0013] Further, two protruding stop rings are provided at the inner wall of the fixed inner sleeve, and the two stop rings respectively abut against the end faces on both sides in the axial direction of the two clamping blocks.

[0014] Further, the fixed inner sleeve is provided with a radially penetrating threaded hole, and a matching screw is arranged in the threaded hole. One end of the screw abuts against the clamping block so as to press the clamping block by screwing the screw.

[0015] Further, an air cavity is formed between the outer side wall of the fixed inner sleeve and the inner side wall of the protection sleeve, and a reset member is arranged between the fixed inner sleeve and the protection sleeve.

[0016] Further, a first sealing ring and a second sealing ring are respectively arranged on both sides of the air cavity in the moving direction of the protection sleeve.

[0017] Further, the reset member is a spring.

[0018] In particular, the present application further provides a cylinder gas supply system, including at least one gas supply cylinder and at least one cylinder joint protection system as described in any one of the above.

[0019] According to the first aspect of the present utility model, through the arrangement of the solenoid valve and the reset member, the protection device of the cylinder joint can be automatically opened and closed, and there is no need to manually carry special tools for the disassembly and assembly of the protection device. Therefore, labor can be saved and the replacement efficiency of the cylinder can be improved.

[0020] Furthermore, arranging the protection sleeve outside the fixed structure can better adapt to the thickness of the cylinder joint and the gas outlet pipeline, making the protection device as small as possible while meeting the use function, thereby saving materials.

[0021] According to the second aspect of the present utility model, through the arrangement of the manual valve, the normal use of the protection device can still be achieved in the abnormal situation of power failure, enabling the cylinder joint protection system to be applicable to the power failure situation and ensuring that the cylinder joint can be normally disassembled or connected during power failure.

[0022] Furthermore, the assembly and disassembly of the protection device can be achieved by simply screwing the screw, which is simple and easy to operate.

[0023] Furthermore, through the arrangement of the first sealing ring and the second sealing ring, the airtightness of the air cavity can be ensured, thereby ensuring the stability of the protection device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shows a connection schematic diagram of a cylinder joint protection system according to an embodiment of the present utility model;

[0025] Figure 2 Shows a structural schematic diagram of a protection device according to an embodiment of the present utility model;

[0026] Figure 3 Shows Figure 2 A structural schematic diagram of the protection device in the embodiment when assembled to the cylinder (in the first state);

[0027] Figure 4 Shows Figure 2 A structural schematic diagram of the protection device in the embodiment when assembled to the cylinder (in the second state);

[0028] Figure 5 Shows a connection schematic diagram of a cylinder joint protection system according to another embodiment of the present utility model;

[0029] Figure 6 Shows a cross-sectional structural schematic diagram of a protection device according to an embodiment of the present utility model (when the protection sleeve is in the extended state);

[0030] Figure 7 Shows Figure 6 A schematic cross-sectional view of the protective device of the embodiment (the protective sleeve is in a retracted state);

[0031] Figure 8 A cross-sectional structural schematic diagram of a protection device (protection sleeve in an extended state) according to another embodiment of the utility model is shown;

[0032] Figure 9 Shows Figure 8 A schematic cross-sectional view of the protective device of the embodiment (the protective sleeve is in a retracted state). DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps is not limited to the listed steps, but may optionally include steps not listed, or may optionally include other steps inherent to these processes, methods, products or devices.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] Figure 1 A connection diagram of a cylinder joint protection system 100 according to an embodiment of the utility model is shown. Figure 2 FIG. 1 is a schematic structural diagram of a protection device 10 according to an embodiment of the utility model. Figure 3 Shows Figure 2 A schematic structural diagram of the protection device 10 in the embodiment when it is assembled on the cylinder 200 (in the first state). Figure 4 Shows Figure 2Schematic diagram of the protection device 10 in the embodiment when assembled to the gas cylinder 200 (in the second state). As Figure 1 shown, in one embodiment, the gas cylinder joint protection system 100 includes a protection device 10 and a driving air inlet pipeline. As Figure 2 shown, the protection device 10 includes a fixed structure 11 and a protection sleeve 12 sleeved outside the fixed structure 11. The fixed structure 11 is fixed to the outlet pipeline 220 at the gas cylinder joint 210. An air cavity 121 is formed between the protection sleeve 12 and the fixed structure 11. A reset member 13 is further provided between the protection sleeve 12 and the fixed structure 11 for maintaining the protection sleeve 12 and the fixed structure 11 in the first state. The driving air inlet pipeline includes a solenoid valve 21. The solenoid valve 21 has a first air inlet 211, a first air outlet 212, and a first exhaust port 213. The first air inlet 211 is communicated with the first driving air source 30. The first air outlet 212 is communicated with the air cavity 121. The first exhaust port 213 is communicated with the outside. The solenoid valve 21 is used to form a state where the first air inlet 211 is communicated with the first air outlet 212 to push the protection sleeve 12 to move, so that the protection sleeve 12 and the fixed structure 11 form the second state. The solenoid valve 21 is further used to form a state where the first air outlet 212 is communicated with the first exhaust port 213 to form the first state. One of the first state and the second state is a state where the protection sleeve 12 extends relative to the fixed structure 11 and shields the gas cylinder joint 210 (see Figure 4 ), and the other is a state where the protection sleeve 12 retracts relative to the fixed structure 11 and exposes the gas cylinder joint 210 (see Figure 3 ). That is, when the first air inlet 211 is communicated with the first air outlet 212, it can be to push the protection sleeve 12 to extend or to push the protection sleeve 12 to retract. Correspondingly, the reset member 13 can be to push and hold the protection sleeve 12 to retract or to push and hold the protection sleeve 12 to extend, which is not limited herein.

[0037] In this embodiment, the solenoid valve 21 can be an electrically controlled two-way three-way valve. When powered on, the first air inlet 211 and the first air outlet 212 are communicated. The air flow of the first driving air source 30 enters the air cavity 121 after passing through the solenoid valve 21, pushing the protection sleeve 12 to move. When powered off, the first air outlet 212 is communicated with the first exhaust port 213. The reset member 13 pushes the protection sleeve 12 to return to its original position, and at the same time, the gas in the air cavity 121 is discharged through the first air outlet 212 and the first exhaust port 213.

[0038] In this embodiment, setting the protection sleeve 12 outside the fixed structure 11 can better adapt to the thickness of the gas cylinder joint 210 and the outlet pipeline 220, making the protection device 10 as small as possible while meeting the use function, thereby saving materials.

[0039] The cylinder joint protection system 100 of this embodiment can realize the automatic opening and closing of the protection device 10 of the cylinder joint 210 through the setting of the solenoid valve 21 and the reset member 13, and there is no need to manually carry special tools for the disassembly and assembly of the protection device 10. Therefore, labor can be saved and the replacement efficiency of the cylinder can be improved.

[0040] Figure 5 The connection schematic diagram of the cylinder joint protection system 100 according to another embodiment of the present invention is shown. In another embodiment, as Figure 5 shown, the cylinder joint protection system 100 further includes a protection air inlet pipeline, which includes a manual valve 22. The manual valve 22 has a second air inlet 221, a second air outlet 222 and a second exhaust port 223. The second air inlet 221 is communicated with the second driving air source 40, the second air outlet 222 is communicated with the first exhaust port 213, and the second exhaust port 223 is communicated with the outside. A pressure regulating valve 23 and a pressure sensor 24 are further provided between the first driving air source 30 and the solenoid valve 21. The pressure regulating valve 23 can perform corresponding adjustment according to the air pressure in the pipeline detected by the pressure sensor 24. As Figure 3 shown in the embodiment, the number of the manual valve 22 and the solenoid valve 21 is 2, which is applicable to a gas supply cabinet including 2 cylinders 200. Of course, in other embodiments not shown, the number of the cylinders 200 can also be 1 or more than 2, which is not limited here.

[0041] Taking the protection device 10 of 1 cylinder as an example, in the normal power-on state, the solenoid valve 21 works normally, the manual valve 22 is in the closed state, the second air outlet 222 and the second exhaust port 223 are communicated, that is, the manual valve 22 serves as an intermediate channel for the first exhaust port 213 of the solenoid valve 21 to communicate with the outside. The opening and closing of the solenoid valve 21 and the action of the reset member 13 can realize the extension and retraction actions of the protection sleeve 12. In the case of abnormal power failure, the solenoid valve 21 cannot work normally and is in a state where the first air outlet 212 and the first exhaust port 213 are always communicated. At this time, manually operate the manual valve 22 to make the second air inlet 221 and the second air outlet 222 communicate. The gas of the second driving air source 40 flows into the air cavity 121 through the manual valve 22 and the solenoid valve 21, pushing the protection sleeve 12 to move, realizing the opening and closing of the protection device 10 in the case of power failure. After manually closing the manual valve 22, the second air outlet 222 and the second exhaust port 223 are communicated, and the gas in the air cavity 121 is discharged to the outside through the solenoid valve 21 and the manual valve 22.

[0042] Through the setting of the manual valve 22 in this embodiment, the normal use of the protection device 10 can still be realized in the abnormal case of power failure, enabling the cylinder joint protection system 100 to be applicable to the power failure situation and ensuring that the cylinder joint 210 can be normally disassembled or connected when the power is off.

[0043] Figure 6 Figure 1 shows a schematic cross-sectional structure of the protection device 10 (the protection sleeve 12 is in the extended state) according to an embodiment of the present invention. Figure 7 shows Figure 6 a schematic cross-sectional structure of the protection device 10 (the protection sleeve 12 is in the retracted state) according to an embodiment. In one embodiment, as Figure 2 shown, the fixing structure 11 includes a fixing inner sleeve 111 and two clamping blocks 112 disposed in the fixing inner sleeve 111. The two clamping blocks 112 are disposed opposite to each other along the radial direction of the fixing inner sleeve 111 and are configured to be relatively far away or close to each other. A groove 113 is provided on one side of the two clamping blocks 112 facing each other, and the two grooves 113 match the outer shape of the gas outlet pipeline 220. As Figure 6 shown, two protruding retaining rings 114 are provided on the inner wall of the fixing inner sleeve 111, and the two retaining rings 114 respectively abut against the end faces on both axial sides of the two clamping blocks 112. The fixing inner sleeve 111 is provided with a radially penetrating threaded hole (not shown), and a matching screw 115 is provided in the threaded hole. One end of the screw 115 abuts against the clamping block 112 so as to press the clamping block 112 by screwing the screw 115. The threaded hole and the screw 115 can be one group or two groups, and one group of threaded hole and screw 115 is for one clamping block 112. An air cavity 121 is formed between the outer side wall of the fixing inner sleeve 111 and the inner side wall of the protection sleeve 12, and a reset member 13 is provided between the fixing inner sleeve 111 and the protection sleeve 12. First sealing rings 116 and second sealing rings 117 are respectively provided on both sides of the air cavity 121 in the moving direction of the protection sleeve 12. The reset member 13 is a spring.

[0044] As Figure 6 and 7 shown in the embodiment, during use, first, the protection device 10 is sleeved on the gas outlet pipeline 220 of the cylinder 200, so that the two grooves 113 of the two clamping blocks 112 cooperate with the gas outlet pipeline 220, and then the screw 115 is screwed, so that one clamping block 112 is pressed against the other clamping block 112, thereby fixing the entire protection device 10 to the gas outlet pipeline 220. Then, by opening or closing the solenoid valve 21 or manually opening the manual valve 22, the air cavity 121 is inflated, prompting the protection sleeve 12 to extend relative to the fixing structure 11 (see Figure 6 ), and further shielding the cylinder joint 210. When the solenoid valve 21 or the manual valve 22 is closed, the gas in the air cavity 121 is discharged to the outside due to the restoring force of the reset member 13, prompting the protection sleeve 12 to retract relative to the fixing structure 11 (see Figure 7 ), and further exposing the cylinder joint 210.

[0045] Of course, by changing the connection position of the reset member 13, it is also possible to form the protection sleeve 12 retracting when the air cavity 121 is inflated (see Figure 9), the state where the protective sleeve 12 extends when the air chamber 121 deflates (see Figure 8 ), and the specific working principle is the same as that of the foregoing embodiment, which will not be elaborated here.

[0046] In this embodiment, the assembly and disassembly of the protection device 10 can be realized by simply screwing the screw 115, which is simple and easy to operate.

[0047] Furthermore, the setting of the first sealing ring 116 and the second sealing ring 117 can ensure the sealing performance of the air chamber 121, thereby ensuring the stability of the protection device 10 during use.

[0048] An embodiment of the present application further provides a cylinder gas supply system, including at least one gas supply cylinder 200 and at least one cylinder joint protection system 100 in any of the foregoing embodiments.

[0049] The above are only some specific implementation manners of the present application, and any improvements made on the premise of the concept of the present application are regarded as the protection scope of the present application.

Claims

1. A steel cylinder joint protection system, characterized in that, Comprising: A protection device, which includes a fixed structure and a protection sleeve sleeved outside the fixed structure. The fixed structure is fixed on the gas outlet pipeline at the cylinder joint. An air cavity is formed between the protection sleeve and the fixed structure. A reset member is further provided between the protection sleeve and the fixed structure for maintaining the protection sleeve and the fixed structure in a first state. A driving air inlet pipeline, including a solenoid valve. The solenoid valve has a first air inlet, a first air outlet and a first exhaust port. The first air inlet is communicated with a first driving air source. The first air outlet is communicated with the air cavity. The first exhaust port is communicated with the outside. The solenoid valve is used to form a state where the first air inlet is communicated with the first air outlet to push the protection sleeve to move, so that the protection sleeve and the fixed structure form a second state. The solenoid valve is also used to form a state where the first air outlet is communicated with the first exhaust port to form the first state. One of the first state and the second state is a state where the protection sleeve extends relative to the fixed structure and shields the cylinder joint, and the other is a state where the protection sleeve retracts relative to the fixed structure and exposes the cylinder joint.

2. The cylinder joint protection system according to claim 1, wherein, It further includes a protection air inlet pipeline, which includes a manual valve. The manual valve has a second air inlet, a second air outlet and a second exhaust port. The second air inlet is communicated with a second driving air source. The second air outlet is communicated with the first exhaust port. The second exhaust port is communicated with the outside.

3. The cylinder joint protection system according to claim 1, characterized in that A pressure regulating valve and a pressure sensor are further provided between the first driving air source and the solenoid valve.

4. The cylinder joint protection system according to any one of claims 1-3, characterized in that, The fixed structure includes a fixed inner sleeve and two clamping blocks arranged in the fixed inner sleeve. The two clamping blocks are arranged oppositely along the radial direction of the fixed inner sleeve and are arranged to be relatively far away or close to each other. Grooves are provided on the opposite sides of the two clamping blocks, and the two grooves match the outer shape of the gas outlet pipeline.

5. The cylinder joint protection system according to claim 4, characterized in that, Two protruding stop rings are provided at the inner wall of the fixed inner sleeve, and the two stop rings respectively abut against the end faces on both sides in the axial direction of the two clamping blocks.

6. The cylinder joint protection system according to claim 4, wherein The fixed inner sleeve is provided with a radially penetrating threaded hole, and a matching screw is arranged in the threaded hole. One end of the screw abuts against the clamping block, so as to press the clamping block by screwing the screw.

7. The cylinder joint protection system according to claim 4, characterized in that, The air cavity is formed between the outer side wall of the fixed inner sleeve and the inner side wall of the protection sleeve, and the reset member is provided between the fixed inner sleeve and the protection sleeve.

8. The cylinder joint protection system according to claim 7, wherein, A first sealing ring and a second sealing ring are respectively provided on both sides of the air cavity in the moving direction of the protection sleeve.

9. The cylinder joint protection system according to claim 7, wherein, The reset member is a spring.

10. A cylinder gas supply system, characterized in that, Including at least one gas supply cylinder and at least one cylinder joint protection system according to any one of claims 1-9.

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