Drying equipment for interior of gas cylinder

Abstract

The utility model discloses gas cylinder interior drying equipment, which belongs to the technical field of gas cylinders, and comprises a box body, fixed clamping mechanisms are arranged on two sides of the top end of the box body, a drying cavity is arranged at the top end of the box body, the drying cavity is arranged between the fixed clamping mechanisms on the two sides, a drying pipe is arranged at the top end of the drying cavity, and a gas cylinder is arranged in the drying pipe. And the drying pipe communicates with the drying cavity, the drying pipe is of a telescopic structure, an air heater is arranged on one side of the top end of the box body, and the air heater communicates with the drying cavity through a ventilation pipe. The drying pipe is not fixed in length any more and can stretch out and draw back up and down, adjustment can be conveniently conducted according to gas cylinders of different height specifications, the height of the first clamping assembly and the height of the second clamping assembly of the fixed clamping mechanism can be adjusted through the lifting assembly, and fixing at different positions can be conducted according to the sizes of the gas cylinders; and the stability of the gas cylinder in the drying process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinders, and particularly relates to a drying device for the interior of a gas cylinder. Background Art

[0002] A gas cylinder refers to a mobile pressure vessel that can be repeatedly refilled under normal environmental conditions and is used to contain permanent gases, liquefied gases, or dissolved gases. Gas cylinders are widely used, and are almost indispensable in both the production field and the life field. During the use of a gas cylinder, water vapor will condense due to the changes in the internal gas temperature and pressure. In addition, in order to test the static pressure strength inside the gas cylinder, when manufacturing a gas cylinder, it is necessary to conduct a hydrostatic test on the gas cylinder before leaving the factory. After passing the hydrostatic test, there will be a lot of residual water inside the gas cylinder. The residual water may cause corrosion inside the gas cylinder, the growth of microorganisms, and the occurrence of water hammer under the action of high-pressure gas. In order to ensure the safe use and service life of the gas cylinder, it is necessary to dry the interior of the gas cylinder.

[0003] At present, the drying of the interior of a gas cylinder is mainly achieved by sending hot air into the gas cylinder through an air pipe. The hot air heats the water inside the gas cylinder to turn the water into water vapor, and then the hot air is used to blow the water vapor out of the gas cylinder. For the drying device for the interior of a gas cylinder using the above method, the fixing frame for installing the gas cylinder has a simple structure and cannot be fixed at different positions according to the size of the gas cylinder. The gas cylinder is prone to instability during the drying process. Moreover, gas cylinders have different height specifications, and the drying pipes on the interior dryer of the gas cylinder are generally of a fixed length, which is not convenient for adjusting according to gas cylinders of different heights.

[0004] In view of this, we propose a drying device for the interior of a gas cylinder. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a drying device for the interior of a gas cylinder to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a drying device for the inside of a gas cylinder, which comprises a box body. Fixed clamping mechanisms are arranged on both sides of the top end of the box body. A drying cavity is arranged at the top end of the box body, and the drying cavity is arranged between the fixed clamping mechanisms on both sides. A drying pipe is arranged at the top end of the drying cavity, and the drying pipe is communicated with the drying cavity. The drying pipe comprises a first drying pipe and a second drying pipe. One end of the first drying pipe is fixedly connected with the top surface of the drying cavity. An external thread is arranged on the outer surface of the end of the first drying pipe far away from the drying cavity. The second drying pipe is slidably sleeved on the outside of the first drying pipe. An internal thread is arranged on the inner surface of the end of the second drying pipe close to the drying cavity, and the internal thread is matched with the external thread. A hot air blower is arranged on one side of the top end of the box body, and the hot air blower is communicated with the drying cavity through a ventilation pipe.

[0008] Further, the fixed clamping mechanism comprises a lifting assembly and a clamping assembly. The clamping assembly is movably connected with the lifting assembly. The clamping assembly comprises a first clamping assembly and a second clamping assembly. The structures of the first clamping assembly and the second clamping assembly are the same. The first clamping assembly is arranged above the second clamping assembly. The first clamping assembly comprises a moving plate. One side of the moving plate is movably connected with the lifting assembly. An electric telescopic rod is fixedly connected to the side of the moving plate far away from the lifting assembly. A long plate is fixedly connected to the end of the electric telescopic rod far away from the moving plate. A clamping jaw is fixedly connected to the side of the long plate far away from the electric telescopic rod.

[0009] Further, the lifting assembly comprises fixing plates. The fixing plates are arranged on both sides of the top end of the box body. A first sliding groove and a second sliding groove are arranged on the fixing plates. The first sliding groove and the second sliding groove are symmetrically arranged along the vertical center line of the fixing plate. A first screw rod is installed in the first sliding groove. One end of the first screw rod is connected to the output end of a first motor. The first motor is arranged at the top end of the fixing plate. A first thread is arranged at the end of the first screw rod far away from the first motor. A second screw rod is installed in the second sliding groove. One end of the second screw rod is connected to the output end of a second motor. The second motor is arranged at the top end of the fixing plate. A second thread is arranged at the end of the second screw rod close to the second motor. The end of the second thread far away from the second motor is at the same height as the end of the first thread close to the first motor in the vertical direction. The upper end of the first screw rod is slidably connected with the moving plate of the first clamping assembly. The lower end of the first screw rod is threadedly connected with the moving plate of the second clamping assembly. The upper end of the second screw rod is threadedly connected with the moving plate of the first clamping assembly. The lower end of the second screw rod is slidably connected with the moving plate of the second clamping assembly.

[0010] Further, drying holes are arranged at intervals along the pipe length direction on the first drying pipe and the second drying pipe, and the drying holes are circular holes.

[0011] Further, a water baffle is arranged along the outer periphery of the top surface of the box body.

[0012] Further, one side of the top surface of the box body is provided with a water outlet, the water outlet is arranged inside the water baffle, and the end of the water outlet is communicated with a drainage device.

[0013] Compared with the prior art, the utility model has the following technical effects:

[0014] In the drying tube of the utility model, by setting the drying tube as the first drying tube and the second drying tube, the second drying tube is slidably sleeved outside the first drying tube, an external thread is arranged on the outer side of the top end of the first drying tube, an internal thread is arranged on the inner side of the bottom of the second drying tube, and the internal thread and the external thread can cooperate with each other. When drying gas cylinders with different height specifications, the second drying tube can slide up and down along the first drying tube, and the drying tube can be telescopically adjusted up and down, and can be adjusted according to gas cylinders of different heights, enhancing the drying effect inside the gas cylinder. In the fixed clamping mechanism of the utility model, the fixed clamping mechanism includes a lifting component and a clamping component, the clamping component includes a first clamping component and a second clamping component, the first clamping component is arranged above, the second clamping component is arranged below, and through the lifting component, the first clamping component and the second clamping component can be adjusted in height, and can be fixed at different positions according to the size of the gas cylinder, increasing the stability of the gas cylinder during the drying process. Description of the Drawings

[0015] Figure 1 Stereoscopic schematic diagram of the gas cylinder internal drying device according to the embodiment of the utility model;

[0016] Figure 2 Another angle stereoscopic schematic diagram of the gas cylinder internal drying device according to the embodiment of the utility model;

[0017] Figure 3 Another angle stereoscopic schematic diagram of the gas cylinder internal drying device according to the embodiment of the utility model;

[0018] Figure 4 Front view of the gas cylinder internal drying device according to the embodiment of the utility model;

[0019] Figure 5 Top view of the gas cylinder internal drying device according to the embodiment of the utility model;

[0020] Figure 6 Structural schematic diagram of the drying tube in the contracted state according to the embodiment of the utility model;

[0021] Figure 7 Structural schematic diagram of the drying tube in the extended state according to the embodiment of the utility model.

[0022] Reference numerals: 1, box body; 2, fixed clamping mechanism; 21, lifting assembly; 211, fixing plate; 212, first sliding groove; 213, second sliding groove; 214, first screw rod; 215, first thread; 216, second screw rod; 217, second thread; 218, first motor; 219, second motor; 22, clamping assembly; 221, first clamping assembly; 2211, moving plate; 2212, electric telescopic rod; 2213, long plate; 2214, jaw; 222, second clamping assembly; 3, hot air blower; 4, ventilation pipe; 5, drying chamber; 6, drying pipe; 61, first drying pipe; 62, second drying pipe; 63, external thread; 64, internal thread; 65, drying hole; 7, water outlet; 8, water baffle. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 7 , this embodiment provides a drying device for the inside of a gas cylinder, including a box body 1, and the box body 1 can be made of metal materials. Fixed clamping mechanisms 2 are provided on both sides of the top end of the box body 1, and a drying chamber 5 is provided at the top end of the box body 1. The drying chamber 5 is arranged between the fixed clamping mechanisms 2 on both sides. In this embodiment, the drying chamber 5 is located at the middle position between the fixed clamping mechanisms 2 on both sides.

[0025] A drying pipe 6 is provided at the top end of the drying chamber 5. The structure of the drying pipe 6 is a telescopic structure and is communicated with the inner cavity of the drying chamber 5. The drying pipe 6 includes a first drying pipe 61 and a second drying pipe 62. One end of the first drying pipe 61 is detachably and fixedly connected to the top surface of the drying chamber 5, and an external thread 63 is provided at the other end of the first drying pipe 61. The second drying pipe 62 is slidably sleeved on the outside of the first drying pipe 61, and an internal thread 64 is provided on the inner surface of one end of the second drying pipe 62 close to the drying chamber 5. The internal thread 64 cooperates with the external thread 63. The drying pipe 6 can be telescopically extended and retracted, and can be adjusted for gas cylinders with different height specifications, thereby enhancing the drying effect and improving the drying efficiency.

[0026] When the gas cylinder is not dried or when drying a gas cylinder with a lower height specification, the drying pipe 6 is in a contracted state as shown in Figure 6 shown, Figure 6The contraction state of the drying tube 6 shown is that the second drying tube 62 is sleeved outside the first drying tube 61, the first drying tube 61 is completely located inside the second drying tube 62, and one end of the second drying tube 62 provided with an internal thread 64 contacts the top surface of the drying cavity 5; when drying gas cylinders with a relatively high height specification, the drying tube 6 is in the state as shown in Figure 7 the elongation state shown. Figure 7 The elongation state of the drying tube 6 shown is that the second drying tube 62 is located at the top of the first drying tube 61 through the cooperation of the internal thread 64 and the external thread 63.

[0027] The state of the drying tube 6 can be changed. When the drying tube 6 changes from the contraction state to the elongation state, the specific process is as follows: Pull the second drying tube 62 upward, and the second drying tube 62 slides upward along the first drying tube 61, and then is fixed through the cooperation of the internal thread 64 and the external thread 63. When the drying tube 6 changes from the elongation state to the contraction state, the specific process is as follows: Rotate the second drying tube 62 to release the cooperation between the internal thread 64 and the external thread 63, and the second drying tube 62 slides downward along the first drying tube 61 until one end of the second drying tube 62 provided with the internal thread 64 contacts the top surface of the drying cavity 5.

[0028] When the drying tube 6 is working, when drying gas cylinders with a relatively low height specification, the drying tube 6 extends into the interior of the gas cylinder in the telescopic state for drying; when drying gas cylinders with a relatively high height specification, the drying tube 6 changes from the contraction state to the elongation state, and the drying tube 6 extends into the interior of the gas cylinder in the elongation state for drying. After drying, if the next round is to dry gas cylinders with a relatively low height specification, the drying tube 6 changes from the elongation state to the contraction state again, and then extends into the interior of the gas cylinder in the telescopic state for drying.

[0029] Specifically, in this embodiment, a hot air blower 3 is provided on the right side of the box body 1. The hot air blower 3 is fixed on the top surface of the box body 1 through bolts. The air outlet of the hot air blower 3 is communicated with an air pipe 4, and one end of the air pipe 4 away from the hot air blower 3 is communicated with the inner cavity of the drying cavity 5. When working, the hot air generated by the hot air blower 3 is transmitted to the drying cavity 5 through the air pipe 4. After the hot air fills the inner cavity of the drying cavity 5, it enters the drying tube 6 upward. The drying tube 6 extends into the interior of the gas cylinder, and the hot air flows into the interior of the gas cylinder from the drying tube 6 to start drying the interior of the gas cylinder.

[0030] Specifically, the fixed clamping mechanism 2 includes a lifting component 21 and a clamping component 22. The clamping component 22 is movably connected to the lifting component 21. The clamping component 22 includes a first clamping component 221 and a second clamping component 222. The first clamping component 221 is arranged at the upper end of the lifting component 21, and the second clamping component 222 is arranged at the lower end of the lifting component 21. At the same time, the structures of the first clamping component 221 and the second clamping component 222 are the same, so no repeated description will be made here. The first clamping component 221 includes a moving plate 2211. One side of the moving plate 2211 is movably connected to the lifting component 21, and the other side of the moving plate 2211 is fixedly connected to an electric telescopic rod 2212. The end of the electric telescopic rod 2212 away from the moving plate 2211 is fixedly connected to a long plate 2213, and a clamping jaw 2214 is fixedly connected to the side of the long plate 2213 away from the electric telescopic rod 2212. During operation, the first clamping component 221 and the second clamping component 222 on both sides of the box body 1 reach the corresponding heights through the lifting component 21. The electric telescopic rods 2212 on the first clamping component 221 and the second clamping component 222 extend forward, driving the long plate 2213 and the clamping jaw 2214 to move. The clamping jaws 2214 on both sides clamp the gas cylinder to fix the gas cylinder. Through the lifting component 21, the first clamping component 221 and the second clamping component 222 can be adjusted in height, and can be fixed at different positions according to the size of the gas cylinder, increasing the stability of the gas cylinder during the drying process.

[0031] Specifically, the lifting assembly 21 includes a fixing plate 211 which is arranged on both sides of the top end of the box body 1. On the fixing plate 211, a first sliding groove 212 and a second sliding groove 213 are symmetrically formed along the vertical center line. A first screw rod 214 is installed in the first sliding groove 212. One end of the first screw rod 214 is connected to the output end of a first motor 218 which is arranged at the top end of the fixing plate 211. A first thread 215 is provided at the end of the first screw rod 214 far from the first motor 218. A second screw rod 216 is installed in the second sliding groove 213. One end of the second screw rod 216 is connected to the output end of a second motor 219 which is arranged at the top end of the fixing plate 211. A second thread 217 is provided at the end of the second screw rod 216 close to the second motor 219. The end of the first thread 215 close to the first motor 218 and the end of the second thread 217 far from the second motor 219 are at the same height in the vertical direction. The upper end of the first screw rod 214 is slidably connected to the moving plate 2211 of the first clamping assembly 221, and the lower end of the first screw rod 214 is threadedly connected to the moving plate 2211 of the second clamping assembly 222. The upper end of the second screw rod 216 is threadedly connected to the moving plate 2211 of the first clamping assembly 221, and the lower end of the second screw rod 216 is slidably connected to the moving plate 2211 of the second clamping assembly 222. During operation, the first motor 218 drives the first screw rod 214 to rotate, and the second motor 219 drives the second screw rod 216 to rotate. The rotating second screw rod 216 moves the first clamping assembly 221 up and down through the second thread 217, and the connection part between the first clamping assembly 221 and the first screw rod 214 moves up and down through sliding. The rotating first screw rod 214 moves the second clamping assembly 222 up and down through the first thread 215, and the connection part between the second clamping assembly 222 and the second screw rod 216 moves up and down through sliding. In addition, the first clamping assembly 221 can only move up and down within the area of the second thread 217 and cannot move up and down within the area of the first thread 215. The second clamping assembly 222 can only move up and down within the area of the first thread 215 and cannot move up and down within the area of the second thread 217.

[0032] Specifically, drying holes 65 are evenly spaced along the tube length direction on both the first drying tube 61 and the second drying tube 62. Such a setting can ensure that the hot air in the drying tube 6 can evenly blow to all parts inside the gas cylinder, avoiding the phenomenon of local overheating, improving the drying uniformity. The shape of the drying hole 65 is circular. The circular hole has a small edge effect, which can reduce the heat dissipation at the hole edge, enabling more heat to be used for drying the gas cylinder, improving the utilization rate of thermal energy and reducing the waste of heat.

[0033] Specifically, a water baffle 8 is provided along the outer periphery of the top surface of the box body 1. When the gas cylinder is being dried, it is placed upside down with the opening facing up. After the hydrostatic test, there will be residual moisture in the gas cylinder, and some of the moisture in the gas cylinder will drip onto the top surface of the box body 1. The water baffle 8 is provided to prevent water from overflowing from the top surface of the box body 1.

[0034] Specifically, a water outlet 7 is provided on one side of the top surface of the box body 1. In this embodiment, the water outlet 7 is arranged on the right side, on the same side as the hot air blower 3. The water outlet 7 is provided inside the water baffle 8, and a drainage device is connected to the end of the water outlet 7. When there is enough water on the top surface of the box body 1, the water will flow out through the water outlet 7, and the drainage device will treat the water to other places, and then the remaining moisture on the top surface of the box body 1 will be manually cleaned. When there is less water on the top surface of the box body 1, since the top surface of the box body 1 is a flat surface and the water is not enough to flow towards the water outlet 7, at this time, the moisture on the top surface of the box body 1 needs to be manually cleaned.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An internal drying device for gas cylinders, characterized in that, It includes a box body (1). On both sides of the top end of the box body (1), there are fixed clamping mechanisms (2). At the top end of the box body (1), there is a drying chamber (5). The drying chamber (5) is arranged between the fixed clamping mechanisms (2) on both sides. At the top end of the drying chamber (5), there is a drying pipe (6). The drying pipe (6) is communicated with the drying chamber (5). The drying pipe (6) includes a first drying pipe (61) and a second drying pipe (62). One end of the first drying pipe (61) is fixedly connected to the top surface of the drying chamber (5). On the outer surface of the end of the first drying pipe (61) away from the drying chamber (5), there is an external thread (63). The second drying pipe (62) is slidably sleeved on the outside of the first drying pipe (61). On the inner surface of the end of the second drying pipe (62) close to the drying chamber (5), there is an internal thread (64). The internal thread (64) is matched with the external thread (63). On one side of the top end of the box body (1), there is a hot air blower (3). The hot air blower (3) is communicated with the drying chamber (5) through an air pipe (4).

2. The internal drying device for gas cylinders according to claim 1, characterized in that, The fixed clamping mechanism (2) includes a lifting component (21) and a clamping component (22). The clamping component (22) is movably connected to the lifting component (21). The clamping component (22) includes a first clamping component (221) and a second clamping component (222). The structures of the first clamping component (221) and the second clamping component (222) are the same. The first clamping component (221) is arranged above the second clamping component (222). The first clamping component (221) includes a moving plate (2211). One side of the moving plate (2211) is movably connected to the lifting component (21). On the side of the moving plate (2211) away from the lifting component (21), there is an electric telescopic rod (2212) fixedly connected. At the end of the electric telescopic rod (2212) away from the moving plate (2211), there is a long plate (2213) fixedly connected. On the side of the long plate (2213) away from the electric telescopic rod (2212), there is a clamping jaw (2214) fixedly connected.

3. The internal drying device for gas cylinders according to claim 2, characterized in that, The lifting assembly (21) includes a fixed plate (211) which is arranged on both sides of the top end of the box body (1). The fixed plate (211) is provided with a first sliding groove (212) and a second sliding groove (213). The first sliding groove (212) and the second sliding groove (213) are symmetrically arranged along the vertical center line of the fixed plate (211). A first screw rod (214) is installed in the first sliding groove (212). One end of the first screw rod (214) is connected to the output end of a first motor (218), and the first motor (218) is arranged at the top end of the fixed plate (211). One end of the first screw rod (214) away from the first motor (218) is provided with a first thread (215). A second screw rod (216) is installed in the second sliding groove (213). One end of the second screw rod (216) is connected to the output end of a second motor (219), and the second motor (219) is arranged at the top end of the fixed plate (211). One end of the second screw rod (216) close to the second motor (219) is provided with a second thread (217). One end of the second thread (217) away from the second motor (219) is at the same height in the vertical direction as one end of the first thread (215) close to the first motor (218). The upper end of the first screw rod (214) is slidably connected to the moving plate (2211) of the first clamping assembly (221), and the lower end of the first screw rod (214) is threadedly connected to the moving plate (2211) of the second clamping assembly (222). The upper end of the second screw rod (216) is threadedly connected to the moving plate (2211) of the first clamping assembly (221), and the lower end of the second screw rod (216) is slidably connected to the moving plate (2211) of the second clamping assembly (222).

4. The internal drying device for gas cylinders according to claim 1, characterized in that, The first drying tube (61) and the second drying tube (62) are both provided with drying holes (65) at intervals along the tube length direction, and the drying holes (65) are circular holes.

5. The internal drying device for gas cylinders according to claim 1, characterized in that, A water baffle (8) is arranged along the outer periphery of the top surface of the box body (1).

6. The internal drying device for gas cylinders according to claim 5, characterized in that, One side of the top surface of the box body (1) is provided with a water outlet (7). The water outlet (7) is arranged inside the water baffle (8), and the end of the water outlet (7) is communicated with a drainage device.

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