Gas cylinder drying device

Abstract

The utility model belongs to the technical field of gas cylinder drying, and particularly relates to a gas cylinder drying device which comprises a support, a drying base is fixedly installed at the top of the support, a drying pipe is arranged at the top of the drying base, a partition plate is fixedly installed on the inner side of the drying pipe, and an air inlet and an air outlet are formed in the end, away from the drying base, of the drying pipe. The air inlet and the air outlet are distributed in the two sides of the partition plate correspondingly and communicate with the interior of the drying pipe, and a drying hole and an air return groove are formed in the end, close to the drying base, of the drying pipe and communicate with the interiors of the air inlet and the air outlet correspondingly. According to the gas cylinder drying device, drying gas penetrates through the drying holes to be fed into the gas cylinder through the hollow cavity of the drying pipe, the drying gas overflowing from the gas cylinder passes through the hollow cavity of the drying pipe connected with the gas return groove and is finally exhausted from the gas cylinder through the exhaust port, and therefore the situation that gas in the gas cylinder is too much, and high pressure is caused is avoided.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder production technology, and in particular to a gas cylinder drying device. Background Technology

[0002] Gas cylinders are typically used for transporting and storing high-pressure, high-strength gases, so they need to be inspected regularly. During gas cylinder inspection, water is usually filled into the cylinder to test the residual volume deformation rate. However, some water usually remains in the cylinder after the inspection and testing.

[0003] Existing solutions mostly require drying the gas cylinders to remove residual moisture, which presents the following problems in practice:

[0004] 1) Some gas remains inside the gas cylinder after testing. If high-temperature drying gas is continuously introduced into the gas cylinder, it can easily cause high pressure to be generated inside the gas cylinder, which is quite dangerous.

[0005] 2) Since the length of the outlet pipe of the drying device inserted into the gas cylinder is often fixed, when drying gas cylinders of different sizes, the drying gas is difficult to reach the bottom of the gas cylinder, resulting in the incomplete evaporation and discharge of moisture, which affects the drying effect. Utility Model Content

[0006] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0007] Specifically, the technical problem to be solved by this utility model is to provide a gas cylinder drying device to address the issue that, in the current method, some gas remains inside the gas cylinder after testing. When high-temperature drying gas is continuously introduced into the gas cylinder, it can easily cause high pressure to be generated inside the gas cylinder, which is quite dangerous. Furthermore, since the length of the outlet pipe of the drying device inserted into the gas cylinder is often fixed, when drying gas cylinders of different sizes is dried, it is difficult for the drying gas to reach the bottom of the gas cylinder, resulting in the incomplete evaporation and discharge of moisture, which affects the drying effect.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A gas cylinder drying device includes a support frame, a drying base fixedly installed on the top of the support frame, a drying tube provided on the top of the drying base, a partition fixedly installed on the inner side of the drying tube, an air inlet and an air outlet provided at the end of the drying tube away from the drying base, and the air inlet being connected to a gas supply device.

[0010] The air inlet and the exhaust outlet are respectively distributed on both sides of the partition and are connected to the interior of the drying tube. The drying tube has a drying hole and a return air groove at one end near the drying base. The drying hole and the return air groove are respectively connected to the interior of the air inlet and the exhaust outlet.

[0011] As an improved technical solution, the outer side of the drying tube is movably connected to a threaded joint via a sliding groove, and the threaded joint is interference-fitted with the drying tube.

[0012] As an improved technical solution, the air supply device includes an air compressor and a heater fixedly installed on the top of the drying seat. The air compressor is connected to an air supply pipe, and the heater is connected to the air compressor through the air supply pipe. The heater is connected to the air inlet through a telescopic pipe.

[0013] As an improved technical solution, the drying pipe is connected to a pressure relief pipe through the exhaust port, and an air chamber is opened on the inner side of the pressure relief pipe. The air chamber is connected to the inside of the return air groove through the drying pipe.

[0014] As an improved technical solution, a piston rod is provided in the air chamber, and a spring is fitted on the piston rod. The piston rod is movably connected to the pressure relief pipe through the spring, and the air chamber and the piston rod are mutually adapted.

[0015] The pressure relief pipe is also provided with a venting groove on its inner side. The venting groove is connected to the air chamber, and the diameter of the venting groove is larger than the diameter of the piston rod. A venting chamber is formed between the piston rod and the inner wall of the venting groove. The pressure relief pipe is provided with a number of venting holes that are connected to the venting chamber.

[0016] As an improved technical solution, guide rails are symmetrically distributed on both sides of the support, and a clamping block is slidably installed between the two guide rails along the length direction of the guide rail. The clamping block is movably connected to both sides of the support through the guide rail and is located below the drying seat. A dual-axis motor is also fixedly installed on the top of the guide rail. The output shaft of the dual-axis motor is connected to a bidirectional lead screw, and the two ends of the bidirectional lead screw are respectively threaded to the clamping block.

[0017] As an improved technical solution, both ends of the clamping block are provided with slots that are adapted to the guide rails. The clamping block is slidably installed between the two corresponding guide rails through the slots, and a clamping part is provided on the opposite side of the clamping block. The clamping part has a clamping arc surface adapted to the outer diameter of the gas cylinder.

[0018] After adopting the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, the drying gas is sent into the gas cylinder through the drying hole via the hollow cavity of the drying tube. The drying gas overflowing from the gas cylinder passes through the hollow cavity of the drying tube connected to the return gas groove and is finally discharged from the gas cylinder through the exhaust port, thereby avoiding excessive gas in the gas cylinder and causing high pressure.

[0020] 2. In this utility model, after the threaded connector is connected to the gas cylinder, the drying hole and return gas groove on the drying tube are located in the gas cylinder, thereby drying gas cylinders of different sizes. The length of the drying tube entering the gas cylinder is adjusted so that the drying gas reaches the bottom of the gas cylinder, ensuring the drying effect.

[0021] 3. In this utility model, the output shaft of a dual-axis motor drives a connected bidirectional lead screw to rotate, so that the threaded clamping block moves linearly along the guide rail under the restriction of the slot, and is fixed to the gas cylinder by the clamping arc surface of the clamping part, thereby preventing the gas cylinder from loosening and tipping over. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a three-dimensional structural diagram of the gas cylinder drying device of this utility model.

[0024] Figure 2 This is a schematic diagram of the air compressor and drying pipe of the gas cylinder drying device of this utility model.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the drying tube of the gas cylinder drying device of this utility model.

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the pressure relief pipe of the gas cylinder drying device of this utility model.

[0027] Figure 5 This is a schematic diagram of the clamping block and guide rail structure of the gas cylinder drying device of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Support frame; 2. Drying base; 3. Drying pipe; 4. Partition plate; 5. Air inlet; 6. Exhaust outlet; 7. Drying hole; 8. Air return groove; 9. Slide groove; 10. Threaded joint; 11. Air compressor; 12. Air delivery pipe; 13. Heater; 14. Telescopic pipe; 15. Pressure relief pipe; 16. Air chamber; 17. Piston rod; 18. Spring; 19. Air vent groove; 20. Guide rail; 21. Clamping block; 22. Dual-shaft motor; 23. Double-acting lead screw. Detailed Implementation

[0030] 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.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0033] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] like Figures 1 to 5As shown in the figure, this embodiment provides a gas cylinder drying device, which includes a support 1. A drying base 2 is fixedly installed on the top of the support 1. A drying pipe 3 is provided on the top of the drying base 2. A partition 4 is fixedly installed on the inner side of the drying pipe 3. An air inlet 5 and an exhaust outlet 6 are provided at the end of the drying pipe 3 away from the drying base 2. The air inlet 5 is connected to a gas supply device. The air inlet 5 and the exhaust outlet 6 are respectively distributed on both sides of the partition 4 and are both connected to the inside of the drying pipe 3. A section is opened at the end of the drying pipe 3 near the drying base 2. The drying hole 7 and the return air groove 8 are connected to the interior of the air inlet 5 and the exhaust port 6, respectively. The drying base 2 can be used with the bracket 1 to place the gas cylinder. The drying tube 3 is divided into two isolated cavities by the partition 4. The air inlet 5 can send the drying gas through the drying hole 7 into the gas cylinder through the cavity of the drying tube 3 to dry the gas cylinder. The return air groove 8 can discharge the drying gas overflowing from the gas cylinder through the cavity of the drying tube 3 and discharge it from the gas cylinder through the exhaust port 6, thereby avoiding excessive gas in the gas cylinder and causing high pressure.

[0035] The outer side of the drying tube 3 is movably connected to a threaded joint 10 via a sliding groove 9, and the threaded joint 10 is interference-fitted with the drying tube 3. The threaded joint 10 can slide along the axial direction of the drying tube 3 on the groove of the drying tube 3, and after the threaded joint 10 is connected to the gas cylinder, the drying tube 3 can smoothly enter the gas cylinder.

[0036] The air supply device includes an air compressor 11 and a heater 13 fixedly installed on the top of the drying base 2. The air compressor 11 is connected to an air supply pipe 12. The heater 13 is connected to the air compressor 11 through the air supply pipe 12. The heater 13 is connected to the air inlet 5 through a telescopic pipe 14. The air compressor 11 can draw in and compress external gas. The air supply pipe 12 can send the air processed by the air compressor 11 into the heater 13 for heating. After being heated by the heater 13, the air is sent into the drying pipe 3 through the air inlet 5 connected to the telescopic pipe 14.

[0037] The drying pipe 3 is connected to the pressure relief pipe 15 through the exhaust port 6. The inner side of the pressure relief pipe 15 is provided with an air chamber 16. The air chamber 16 is connected to the inside of the return air groove 8 through the drying pipe 3. The pressure relief pipe 15 is connected to the drying pipe 3 through the exhaust port 6, and the drying gas overflowing from the gas cylinder in the drying pipe 3 can enter the air chamber 16 in the pressure relief pipe 15 through the return air groove 8.

[0038] A piston rod 17 is provided in the gas chamber 16, and a spring 18 is fitted on the piston rod 17. The piston rod 17 is movably connected to the pressure relief pipe 15 through the spring 18, and the gas chamber 16 and the piston rod 17 are adapted to each other. A venting groove 19 is also provided on the inner side of the pressure relief pipe 15. The venting groove 19 is connected to the gas chamber 16, and the diameter of the venting groove 19 is larger than the diameter of the piston rod 17. A venting chamber is formed between the piston rod 17 and the inner wall of the venting groove 19. The pressure relief pipe 15 has several venting holes that communicate with the venting chamber. When the spring 18 is in the extended state, it pushes the piston rod 17 to move in the pressure relief pipe 15 and completely blocks the venting chamber. When the venting chamber is open, the drying gas overflowing from the gas cylinder can be discharged from the pressure relief pipe 15 through the venting holes.

[0039] The support 1 has symmetrically distributed guide rails 20 on both sides. A clamping block 21 is slidably installed between the two guide rails 20 along the length of the guide rails 20. The clamping block 21 is movably connected to both sides of the support 1 through the guide rails 20 and is located below the drying seat 2. A dual-axis motor 22 is also fixedly installed on the top of the guide rails 20. The output shaft of the dual-axis motor 22 is connected to a bidirectional lead screw 23. The two ends of the bidirectional lead screw 23 are threaded to the clamping block 21 respectively. The bidirectional lead screw 23 passes through the entire clamping block 21, and the inner thread direction of the clamping block 21 corresponding to the bidirectional lead screw 23 is opposite.

[0040] Both ends of the clamping block 21 are provided with slots that are adapted to the guide rail 20. The clamping block 21 is slidably installed between the two corresponding guide rails 20 through the slots. A clamping part is provided on the opposite side of the clamping block 21. The clamping part has a clamping arc surface adapted to the outer diameter of the gas cylinder. When the clamping block 21 moves, it maintains a straight movement along the guide rail 20 through the slots and fixes the gas cylinder through the clamping arc surface of the clamping part, thereby preventing the gas cylinder from loosening and tipping over.

[0041] In use, the gas cylinder is placed in the support 1 after passing through the drying base 2, and the air inlet 5 is inserted into the gas cylinder. Depending on the size and volume of the gas cylinder, the threaded connector 10 is aligned with the groove on the drying tube 3, allowing the threaded connector 10 to move axially along the drying tube 3. After the threaded connector 10 is aligned with the gas cylinder, the drying hole 7 and the return air groove 8 on the drying tube 3 are located inside the gas cylinder, thus allowing for drying of gas cylinders of different sizes. The length of the drying tube 3 entering the gas cylinder is adjusted to ensure the drying gas reaches the bottom of the gas cylinder, guaranteeing the drying effect. During this process, outside air is compressed by the air compressor 11 and sent to the heater 13 through the air supply pipe 12 for heating and processing into drying gas. The drying gas is then transferred via a telescopic mechanism. The air inlet 5 connected to pipe 14 enters the drying pipe 3 to dry the inside of the gas cylinder. The drying gas entering through the air inlet 5 passes through the drying hole 7 in the hollow cavity of the drying pipe 3 and is sent into the gas cylinder. The drying gas overflowing from the gas cylinder passes through the hollow cavity of the drying pipe 3 connected to the return gas groove 8 and is finally discharged from the gas cylinder through the exhaust port 6, thereby avoiding excessive gas in the gas cylinder and causing high pressure. After the gas cylinder is placed, the output shaft of the dual-axis motor 22 drives the connected bidirectional lead screw 23 to rotate, so that the threaded clamp 21 maintains linear movement along the guide rail 20 under the restriction of the slot, and is fixed to the gas cylinder by the clamping arc of the clamping part, thereby preventing the gas cylinder from loosening and tipping over.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A gas cylinder drying device, comprising a support frame (1), characterized in that: A drying seat (2) is fixedly installed on the top of the bracket (1). A drying pipe (3) is provided on the top of the drying seat (2). A partition (4) is fixedly installed on the inner side of the drying pipe (3). An air inlet (5) and an exhaust outlet (6) are provided at one end of the drying pipe (3) away from the drying seat (2). The air inlet (5) is connected to the air supply device. The air inlet (5) and the exhaust outlet (6) are respectively distributed on both sides of the partition (4) and are connected to the interior of the drying pipe (3). The drying pipe (3) has a drying hole (7) and a return air groove (8) at one end near the drying seat (2). The drying hole (7) and the return air groove (8) are respectively connected to the interior of the air inlet (5) and the exhaust outlet (6).

2. The gas cylinder drying device according to claim 1, characterized in that: The outer side of the drying tube (3) is movably connected to a threaded joint (10) via a sliding groove (9), and the threaded joint (10) is interference-fitted with the drying tube (3).

3. The gas cylinder drying device according to claim 2, characterized in that: The air supply device includes an air compressor (11) and a heater (13) fixedly installed on the top of the drying seat (2). The air compressor (11) is connected to an air supply pipe (12). The heater (13) is connected to the air compressor (11) through the air supply pipe (12). The heater (13) is connected to the air inlet (5) through a telescopic pipe (14).

4. The gas cylinder drying device according to claim 1, characterized in that: The drying pipe (3) is connected to a pressure relief pipe (15) through the exhaust port (6). An air chamber (16) is opened on the inner side of the pressure relief pipe (15). The air chamber (16) is connected to the inside of the return air groove (8) through the drying pipe (3).

5. The gas cylinder drying device according to claim 4, characterized in that: The air chamber (16) is provided with a piston rod (17), and a spring (18) is fitted on the piston rod (17). The piston rod (17) is movably connected to the pressure relief pipe (15) through the spring (18), and the air chamber (16) and the piston rod (17) are mutually adapted. The inner side of the pressure relief pipe (15) is also provided with a venting groove (19), which is connected to the air chamber (16). The diameter of the venting groove (19) is larger than the diameter of the piston rod (17). A venting chamber is formed between the piston rod (17) and the inner wall of the venting groove (19). The pressure relief pipe (15) is provided with a plurality of venting holes that communicate with the venting chamber.

6. The gas cylinder drying device according to claim 1, characterized in that: The support (1) has guide rails (20) symmetrically distributed on both sides. A clamping block (21) is slidably installed between the two guide rails (20) along the length of the guide rail (20). The clamping block (21) is movably connected to both sides of the support (1) through the guide rail (20) and is located below the drying seat (2). A dual-axis motor (22) is also fixedly installed on the top of the guide rail (20). The output shaft of the dual-axis motor (22) is connected to a bidirectional lead screw (23). The two ends of the bidirectional lead screw (23) are threadedly connected to the clamping block (21) respectively.

7. The gas cylinder drying device according to claim 6, characterized in that: Both ends of the clamping block (21) are provided with slots that are adapted to the guide rail (20). The clamping block (21) is slidably installed between the two corresponding guide rails (20) through the slots. A clamping part is provided on the opposite side of the clamping block (21), and the clamping part has a clamping arc surface adapted to the outer diameter of the gas cylinder.

Images