A seamless gas cylinder internal water removal drying energy-saving device

Abstract

The application discloses a seamless gas cylinder internal water removal drying energy-saving device, which comprises a bottle body pneumatic clamping assembly, a bottle opening pre-positioning assembly, a sealing and humidity returning assembly, an internal air supply assembly, a jacking mechanism, a hot air temperature adjusting chamber and a hot air circulation assembly. After an inverted gas cylinder is positioned by the bottle opening pre-positioning assembly and clamped by the bottle body pneumatic clamping assembly, a first jacking component drives a bottle opening sealing seat to abut and seal the bottle opening, and a second jacking component drives a central air supply pipe to extend into the bottle. The central air supply pipe delivers hot air to the deep part of the bottle body, wet air flows back through a humidity returning outer sleeve, liquid water is collected into a gas-liquid collecting chamber through an annular liquid collecting cavity, and then, after gas-liquid separation and dehumidification treatment, the liquid water is recycled into the hot air temperature adjusting chamber. Each central air supply branch is subjected to flow detection and adjustment. The device can realize multi-station gas cylinder positioning, deep air supply, peripheral humidity returning, gravity liquid discharge and hot air circulation utilization, improves drying consistency and reduces heat loss.

Description

Technical Field

[0001] This invention mainly relates to the field of gas cylinder inspection and maintenance technology, specifically a seamless gas cylinder internal dehydration and drying energy-saving device. Background Technology

[0002] Seamless gas cylinders typically require hydrostatic testing during production, periodic inspection, and maintenance. After the test, a water film and a small amount of liquid water may remain inside the cylinder. If these are not removed in time, they can prolong the subsequent processing time and cause corrosion of the inner wall. Therefore, internal dehydration and drying are necessary.

[0003] One current drying method involves inverting the drained gas cylinder so that the opening faces downwards, and then inserting a hot air supply pipe into the cylinder through the opening to purge it. Because the cylinder opening is open, both the supplied air and the exhaust of moisture are concentrated in the opening area. Hot air can easily escape directly into the drying chamber and heat up non-target components inside, which is not conducive to forming a stable airflow path from the depths of the cylinder to the opening, and also results in additional heat consumption. Furthermore, the exhaust of humid air increases the moisture content of the air inside the chamber.

[0004] Existing technologies also disclose structures that extend U-shaped tubes into the gas cylinder for air supply and exhaust, but the two tube sections and the connecting part need to pass through the cylinder opening together, occupying the flow cross section of the cylinder opening, and the arrangement in the small cylinder opening is limited; at the same time, the two tube sections are set up adjacent to each other, and the supplied hot air may enter the return air section faster and squeeze the space for the discharge of liquid residual water.

[0005] Therefore, existing gas cylinder drying methods still have problems such as hot air easily escaping from open cylinder openings, ineffective overall heating of the drying chamber, lack of effective separation between air supply and moisture discharge paths, difficulty in balancing liquid residual water discharge and humid air recovery, and insufficient stability of multi-station cylinder opening docking. Further improvements are necessary. Summary of the Invention

[0006] The technical solution of this invention addresses the problem that positioning and sealing, airflow organization, and moisture recovery are independent in the existing gas cylinder internal drying process. It mainly provides a seamless gas cylinder internal dehydration and drying energy-saving device to solve the technical problems of insufficient cylinder mouth positioning stability, unreasonable internal air supply and return paths, difficulty in centralized treatment of humid air and liquid residual water, and low heat utilization rate caused by direct discharge of hot and humid air when drying gas cylinders in batches.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A seamless gas cylinder internal dehydration and drying energy-saving device includes a cylinder body pneumatic clamping assembly, a cylinder mouth pre-positioning assembly, a sealing and rehumidification assembly, an internal air supply assembly, and a lifting mechanism, all installed inside the drying chamber, as well as a hot air temperature-regulating chamber and a hot air circulation assembly installed outside the drying chamber.

[0008] Multiple bottle body pneumatic clamping components are configured one-to-one with multiple bottle mouth pre-positioning components, with each bottle mouth pre-positioning component located below the corresponding bottle body pneumatic clamping component.

[0009] The sealing and rehumidification assembly includes a gas-liquid collection box, multiple bottle mouth sealing seats, and a rehumidification sleeve assembly coaxially arranged therewith. A gas-liquid confluence chamber is formed in the gas-liquid collection box, which communicates with each bottle mouth sealing seat. Each bottle mouth sealing seat is located directly below the corresponding bottle mouth prepositioning assembly, and the axes of the two coincide.

[0010] The internal air supply assembly includes a hot air pressure stabilizing box and multiple central air supply pipes, each of which is coaxial with a corresponding return humidity sleeve assembly and can move relative to its axial direction. The lifting mechanism includes a first lifting component and a second lifting component that are independent of each other. The first lifting component causes the bottle mouth sealing seat to first come into contact with and seal the inverted gas cylinder mouth, and the second lifting component causes the central air supply pipe to extend into the gas cylinder.

[0011] The hot air circulation assembly connects the gas-liquid manifold and the hot air temperature control chamber, and the hot air temperature control chamber is connected to the hot air pressure stabilizing box, forming an airflow path that delivers air deep into the center of the bottle, returns moisture to the periphery, and circulates the air.

[0012] Preferably, the pneumatic bottle clamping assembly is provided with a pneumatic clamping member for clamping the bottle body.

[0013] The pre-positioning assembly for the bottle neck includes a positioning receiving ring, a conical positioning sleeve, and multiple radial positioning blocks. The positioning receiving ring is coaxially fixed with the conical positioning sleeve and forms a positioning channel for inserting the bottle neck end of the gas supply cylinder. The multiple radial positioning blocks are respectively radially slidably engaged with sliding grooves spaced apart along the circumference of the positioning receiving ring. The multiple radial positioning blocks are connected together on the side away from the positioning channel by an annular elastic clamping member that applies a radially converging force to them. The inner circumferential surface of the conical positioning sleeve forms an inner conical surface that gradually narrows from top to bottom, and the inner conical surface is provided with an elastic protective layer.

[0014] Preferably, the gas-liquid collection box is provided with an inner tube clearance channel that runs through its height direction for each bottle mouth sealing seat, and the inner tube clearance channel is separated from the gas-liquid collection cavity by a solid wall.

[0015] The outer bottom wall of the gas-liquid collection box is provided with guide wheels corresponding to each inner pipe clearance channel, and the guide wheels are distributed at 120° equidistant angles around the axis of the corresponding inner pipe clearance channel.

[0016] The bottle mouth sealing seat is provided with a central through-channel coaxial with the inner tube clearance channel, and an annular liquid collection cavity arranged around the central through-channel. The bottom of the bottle mouth sealing seat is provided with multiple gas-liquid through holes corresponding to the annular liquid collection cavity. The top of the gas-liquid collection box is provided with a permeable area corresponding to each bottle mouth sealing seat and communicating with the gas-liquid confluence cavity. The annular liquid collection cavity is connected to the gas-liquid confluence cavity through the gas-liquid through holes and the permeable area. The top of the bottle mouth sealing seat is provided with an annular elastic sealing element for abutting against the end face of the inverted gas cylinder.

[0017] Preferably, the rehumidification sleeve assembly includes a conical guide seat and a rehumidification outer sleeve. The conical guide seat is fixed to the bottle mouth sealing seat and coaxial with the central through-channel. The conical guide seat is narrower at the top and wider at the bottom, and its peripheral wall has multiple rehumidification guide holes spaced apart circumferentially. The lower end of the rehumidification outer sleeve is fixed to the conical guide seat.

[0018] The re-humidification outer sleeve is fitted outside the corresponding central air supply duct and forms an annular re-humidification channel between them. The annular re-humidification channel is connected to the annular liquid collection chamber through the re-humidification guide hole.

[0019] The outer wall of the return humidification outer tube is provided with multiple return humidification holes at intervals along the circumference, and multiple sets of return humidification holes are provided along the axial direction of the return humidification outer tube. The length of the return humidification outer tube is less than the effective insertion length of the central air supply duct.

[0020] The conical guide seat and the return-wet outer sleeve are respectively provided with a central guide hole and a top through hole for the central air supply pipe to pass through. The inner pipe avoidance channel, the central through channel, the central guide hole and the top through hole are all clearance fit with the central air supply pipe. The guide wheel is in rolling fit with the outer peripheral wall of the central air supply pipe.

[0021] Preferably, the hot air pressure stabilizing box is provided with an air distribution plate, which divides the hot air pressure stabilizing box into a first pressure chamber and a second pressure chamber located above the first pressure chamber. A conical diffuser corresponding to the air inlet is provided at the center of the bottom of the first pressure chamber. The air inlet is connected to the rigid air inlet pipe of the hot air temperature regulating chamber through a high-temperature resistant corrugated pipe.

[0022] Each of the central air supply ducts is connected to the second pressure chamber through a corresponding branch flow regulating component. The branch flow regulating component is equipped with a flow detection element, a proportional regulating valve and a solenoid valve connected in series.

[0023] Preferably, the central air supply duct includes a lower air supply section and an upper jet section with a diameter smaller than that of the lower air supply section, and a valve seat and a check valve core that cooperate with the valve seat are provided inside the variable diameter connection between the two.

[0024] A ventilation limiting frame is fixedly installed inside the upper jet section. The check valve core is connected to a valve stem that extends axially along the central air supply pipe and slides in cooperation with the ventilation limiting frame. An elastic reset member is sleeved on the outside of the valve stem. The elastic reset member acts on the check valve core and the ventilation limiting frame respectively.

[0025] The upper jet section is provided with a fixed spiral guide, and the upper jet section is provided with inclined exhaust holes distributed circumferentially near its top. At least two sets of the inclined exhaust holes are arranged along the axial direction of the central air supply pipe.

[0026] Preferably, the first lifting component is symmetrically arranged along both sides of the gas-liquid collection box and connected to the gas-liquid collection box, and is used to drive the sealed rehumidification assembly to move vertically up and down inside the drying box. The second lifting component is symmetrically arranged along both sides of the hot air pressure stabilizing box and connected to the hot air pressure stabilizing box, and is used to drive the internal air supply assembly to move vertically up and down inside the drying box. The horizontal arrangement axes of the first and second lifting components are perpendicular to each other.

[0027] The drying chamber is equipped with a gas-liquid collection box and a hot air pressure stabilizing box, which are connected by a vertically sliding guide rod.

[0028] Preferably, the hot air temperature control chamber is equipped with a heater and a temperature detection device. The air inlet of the hot air temperature control chamber is connected to the air outlet of the hot air circulation assembly, and the air outlet of the hot air temperature control chamber is connected to the hot air pressure stabilizing box through a rigid air inlet pipe and a high-temperature resistant corrugated pipe.

[0029] Preferably, the hot air circulation assembly includes a gas-liquid separator, a dehumidifier, a variable frequency blower, and a fresh air filter box. The bottom surface of the gas-liquid manifold is inclined toward the gas-liquid outlet. The gas-liquid outlet is connected to the gas-liquid separator via a heat-resistant corrugated pipe and a gas-liquid main pipe. The gas outlet of the gas-liquid separator is connected to the air inlet of the dehumidifier.

[0030] The air inlet of the variable frequency blower includes two converging branch pipes. One branch pipe is connected to the air outlet of the dehumidification device, and the other branch pipe is connected to the fresh air filter box. The air outlet of the variable frequency blower is connected to the hot air temperature control chamber.

[0031] Preferably, a first pressure detection element is provided between the elastic protective layer of the conical positioning sleeve and the conical positioning sleeve, and a second pressure detection element is provided between the annular elastic sealing element of the bottle mouth sealing seat and the bottle mouth sealing seat. Both the first pressure detection element and the second pressure detection element are electrically connected to the external controller of the drying oven.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through a bottle mouth pre-positioning component, a bottle body pneumatic clamping component, and an independent two-stage lifting structure, enables the inverted gas cylinder to sequentially complete bottle mouth positioning, bottle body clamping, bottle mouth sealing, and fixed-depth insertion of the central air supply pipe. This reduces the impact of manual placement errors at multiple workstations on bottle mouth docking and separates the bottle mouth sealing from the large-stroke movement of the central air supply pipe, thereby improving the stability of multi-workstation docking and air supply pipe lifting. Compared to directly inserting the air supply pipe through an open bottle mouth, this method is more conducive to establishing stable bottle mouth sealing and supply / return air conditions.

[0033] 2. This invention utilizes a central air supply duct and a shorter return humidification outer duct to form an axially staggered internal supply and external return structure. This allows hot air to diffuse from the depths of the bottle body towards the bottle wall area, while humid air is discharged through the return humidification channel near the bottle opening. Simultaneously, the inverted position of the gas bottle allows residual liquid to flow into the annular liquid collection chamber and the gas-liquid junction chamber by gravity. This reduces the direct escape of incoming hot air near the bottle opening or the formation of short-path recirculation, while simultaneously accommodating humid air recovery and residual liquid discharge. Compared to a U-shaped pipe structure where both sections extend into the bottle, this invention also reduces the space occupied by the supply and return air ducts at the bottle opening. The present manuscript clearly describes this structure and the benefits of the axial stagger.

[0034] 3. This invention further integrates the aforementioned internal supply and external return structure with the hot air circulation assembly and branch flow adjustment components, allowing the recovered humid air and liquid water to re-enter the hot air circulation after gas-liquid separation and dehumidification. Furthermore, the differences in air supply between multiple workstations are reduced through the hot air pressure stabilizing box and independent adjustment of each branch. Compared to directly discharging humid hot air into the drying chamber and continuously replenishing and reheating the outside air, this method reduces heat loss caused by heating non-target spaces and discharging humid hot air, while also improving the consistency of drying across multiple workstations. Existing specifications also highlight pressure stabilization, branch flow adjustment, and circulating dehumidification as key synergistic effects.

[0035] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the front-view axis side structure of the present invention; Figure 3 This is a schematic diagram of the rear-view axis structure of the present invention; Figure 4 This is a schematic diagram of the bottle mouth prepositioning component structure of the present invention; Figure 5 This is a schematic diagram of a partial internal structure of the gas-liquid collection box of the present invention; Figure 6 This is an enlarged structural schematic diagram of the bottle mouth sealing seat and rehumidification sleeve assembly of the present invention; Figure 7This is a schematic diagram of the internal structure of the hot air pressure stabilizing box of the present invention; Figure 8 This is an enlarged schematic diagram of a partial internal structure of the central air supply duct of the present invention; Figure 9 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0037] Numbering on the map: 1. Bottle body pneumatic clamping assembly; 2. Bottle mouth pre-positioning assembly; 21. Positioning receiving ring; 22. Conical positioning sleeve; 23. Radial positioning block; 3. Sealing and rehumidification assembly; 31. Gas-liquid collection box; 311. Inner tube clearance channel; 312. Gas-liquid junction cavity; 313. Guide wheel; 32. Bottle mouth sealing seat; 321. Central through-channel; 322. Annular liquid collection cavity; 33. Rehumidification sleeve assembly; 331. Conical guide seat; 332. Rehumidification outer sleeve; 4. Internal air supply assembly; 41. Hot air pressure stabilizing box; 411. Air distribution plate; 412. Conical diffuser; 42. Branch flow adjustment assembly; 43. Central air supply duct; 431. Check valve core; 432. Ventilation limit frame; 433. Spiral guide component; 5. Lifting mechanism; 6. Hot air temperature control chamber; 7. Hot air circulation assembly. Detailed Implementation

[0038] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0040] Please refer to the appendix carefully. Figure 1-9 It includes a pneumatic bottle clamping assembly 1, a bottle mouth prepositioning assembly 2, a sealing and rehumidification assembly 3, an internal air supply assembly 4, a lifting mechanism 5, and a hot air temperature control chamber 6 and a hot air circulation assembly 7, which are located outside the drying chamber.

[0041] Multiple bottle body pneumatic clamping components 1 are set one-to-one with multiple bottle mouth prepositioning components 2, with each bottle mouth prepositioning component 2 located below the corresponding bottle body pneumatic clamping component 1.

[0042] In this embodiment, the pneumatic clamping assembly 1 for the bottle body can adopt a cylinder-driven opposing clamping structure. The two clamping ends are provided with arc-shaped clamping surfaces and elastic buffer layers that are adapted to the outer circumference of the gas cylinder. This is used to clamp the upper part of the bottle body after the gas cylinder has completed the pre-positioning of the bottle mouth, so as to limit the radial swing of the gas cylinder.

[0043] The positioning and receiving ring 21 is fixed to the support bracket of the drying oven, and the conical positioning sleeve 22 is fixedly connected to the positioning and receiving ring 21 to bear the main axial load generated by the inverted gas cylinder; the pneumatic clamping assembly 1 of the cylinder body is mainly used to limit the radial swing of the gas cylinder.

[0044] See attached document Figure 4 As shown, the bottle neck pre-positioning assembly 2 includes a positioning receiving ring 21, a conical positioning sleeve 22, and multiple radial positioning blocks 23. The positioning receiving ring 21 is fixedly installed on the internal support of the drying oven, and the conical positioning sleeve 22 is fixed below the positioning receiving ring 21, with their axes coinciding. Multiple radial grooves are provided at intervals along the circumferential direction on the peripheral wall of the positioning receiving ring 21, and the radial positioning blocks 23 are slidably installed in the corresponding radial grooves.

[0045] Multiple radial positioning blocks 23 are connected together on the side away from the central positioning area by a ring-shaped elastic clamping member.

[0046] In this embodiment, the annular elastic clamping member can be a tension spring connected end to end to form a ring or an elastic ring with radial contraction force, so as to apply an elastic force that converges towards the center to the multiple radial positioning blocks 23.

[0047] Specifically, the operator inverts the gas cylinder and inserts it into the positioning receiving ring 21 with the cylinder opening facing downwards. The transition part near the cylinder opening pushes multiple radial positioning blocks 23 to move radially outwards. Each radial positioning block 23 remains in contact with the outer periphery of the gas cylinder under the action of the annular elastic clamping member, realizing radial passive positioning on the cylinder opening side. As the gas cylinder continues to move downwards, the conical transition area near its cylinder opening contacts the elastic protective layer inside the conical positioning sleeve 22. The first pressure detection element set between the elastic protective layer and the conical positioning sleeve 22 is used to detect the contact state.

[0048] With the above structure, when the detection value of the first pressure detection element reaches the preset range, the external controller sends an installation signal and controls the corresponding pneumatic clamping assembly 1 to clamp the gas cylinder, so that the positions of the cylinder openings of each gas cylinder are basically consistent, so that the subsequent sealing and rehumidification assembly 3 can be synchronously connected.

[0049] See attached document Figure 5 , Figure 6 and Figure 9 As shown, the gas-liquid collection box 31 is provided with an inner tube clearance channel 311 that runs through the height direction of each bottle mouth sealing seat 32. The inner tube clearance channel 311 is separated from the gas-liquid collection cavity 312 by a solid wall.

[0050] The outer bottom wall of the gas-liquid collection box 31 is provided with guide wheels 313 corresponding to each inner tube clearance channel 311. The guide wheels 313 are distributed at 120° equidistant angles around the axis of the corresponding inner tube clearance channel 311.

[0051] The bottle mouth sealing seat 32 is provided with a central through-channel 321 coaxial with the inner tube avoidance channel 311, and an annular liquid collection cavity 322 arranged around the central through-channel 321. The bottom of the bottle mouth sealing seat 32 is provided with multiple gas-liquid through holes corresponding to the annular liquid collection cavity 322. The top of the gas-liquid collection box 31 is provided with a permeable area corresponding to each bottle mouth sealing seat 32 and communicating with the gas-liquid collection cavity 312. The annular liquid collection cavity 322 is connected to the gas-liquid collection cavity 312 through the gas-liquid through holes and the permeable area. The top of the bottle mouth sealing seat 32 is provided with an annular elastic seal for abutting the end face of the inverted gas cylinder.

[0052] Specifically, the gas-liquid collection box 31 adopts a hollow box structure. Each inner pipe avoidance channel 311 is separated from the gas-liquid confluence cavity 312 by a solid peripheral wall, so that the lifting area of ​​the central air supply pipe 43 is isolated from the humid air and liquid water collection area. The guide wheel 313 rolls with the central air supply pipe 43 to limit its lateral sway during the lifting process. When the first lifting component drives the gas-liquid collection box 31 to rise, the annular elastic seal at the top of the bottle mouth sealing seat 32 presses against the bottle mouth end face of the inverted gas bottle. When the detection value of the second pressure detection component reaches the set range, the controller controls the first lifting component to stop rising. The small height deviation between each bottle mouth is compensated by the compression deformation of the annular elastic seal.

[0053] With the above structure, the central air supply pipe 43 can be kept stable during the overall lifting and lowering of the gas-liquid collection box 31, and the sealing seat 32 of each bottle mouth can be sealed with the corresponding gas bottle mouth, providing a sealed connection condition for the concentrated entry of humid air and liquid water into the gas-liquid collection cavity 312.

[0054] See appendix Figure 5 and Figure 6 As shown, the rehumidification sleeve assembly 33 includes a conical guide seat 331 and a rehumidification outer sleeve 332. The conical guide seat 331 is fixed to the bottle mouth sealing seat 32 and coaxial with the central through channel 321. The conical guide seat 331 is narrower at the top and wider at the bottom, and its peripheral wall has multiple rehumidification guide holes spaced apart along the circumference. The lower end of the rehumidification outer sleeve 332 is fixed to the conical guide seat 331.

[0055] The return moisture outer sleeve 332 is fitted outside the corresponding central air supply duct 43 and forms an annular return moisture channel between them. The annular return moisture channel is connected to the annular liquid collection chamber 322 through the return moisture guide hole. The circumferential wall of the return humidification outer sleeve 332 is provided with multiple return humidification holes at intervals along the circumference, and multiple sets of return humidification holes are provided along the axial direction of the return humidification outer sleeve 332. The length of the return humidification outer sleeve 332 is less than the effective insertion length of the central air supply duct 43.

[0056] The conical guide seat 331 and the return humidification outer jacket 332 are respectively provided with a central guide hole and a top through hole for the central air supply pipe 43 to pass through. The inner pipe avoidance channel 311, the central through channel 321, the central guide hole and the top through hole are all clearance fit with the central air supply pipe 43. The guide wheel 313 is in rolling fit with the outer peripheral wall of the central air supply pipe 43.

[0057] Specifically, the rehumidification outer sleeve 332 extends into the inverted gas cylinder mouth area along with the sealed rehumidification assembly 3, and the central air supply pipe 43 can continue to move into the depth of the gas cylinder relative to the rehumidification outer sleeve 332, so that the air supply position and the rehumidification position of the two are offset along the cylinder axis.

[0058] During the drying process, the humid air inside the bottle enters the annular rehumidification channel through the rehumidification holes on the periphery of the rehumidification outer sleeve 332, and then enters the annular liquid collection chamber 322 through the rehumidification guide holes on the conical guide seat 331. The unvaporized liquid water and agglomerated water droplets on the bottle wall flow downwards along the bottle wall and the outer conical surface of the conical guide seat 331 into the annular liquid collection chamber 322 under the action of gravity, and then enter the gas-liquid confluence chamber 312. The central air supply duct 43 can move axially relative to the rehumidification sleeve assembly 33 under the guidance of the various through channels and guide wheels 313.

[0059] Through the above structure, by utilizing the different effective extension lengths of the central air supply pipe 43 and the return moisture outer sleeve 332, the deep air supply of the bottle body and the return moisture on the bottle mouth side are separated, reducing the direct backflow of hot air near the bottle mouth. At the same time, the return moisture sleeve assembly 33 can guide the humid air and the liquid water flowing down the wall into the gas-liquid confluence cavity 312, thereby forming a gas-liquid flow path that combines deep air supply, peripheral return moisture and gravity drainage.

[0060] See attached document Figure 7 As shown, a gas equalization plate 411 is provided inside the hot air pressure stabilizing box 41. The gas equalization plate 411 divides the hot air pressure stabilizing box 41 into a first pressure dividing chamber and a second pressure dividing chamber located above the first pressure dividing chamber. A conical diffuser 412 corresponding to the air inlet is provided at the center of the bottom of the first pressure dividing chamber. The air inlet is connected to the rigid air inlet pipe of the hot air temperature regulating chamber 6 through a high-temperature resistant corrugated pipe.

[0061] Each central air supply duct 43 is connected to the second pressure chamber through a corresponding branch flow regulating component 42. The branch flow regulating component 42 is connected in series with a flow detection element, a proportional regulating valve and a solenoid valve.

[0062] Specifically, hot air enters from the bottom of the hot air pressure stabilizing box 41, diffuses into the first pressure-dividing chamber through the conical diffuser 412, and then enters the second pressure-dividing chamber through the air equalization plate 411 to disperse and equalize the concentrated hot air. Each branch flow regulating component 42 adjusts the opening of the proportional regulating valve according to the actual air supply volume of the corresponding central air supply duct 43, and controls the opening and closing of the corresponding branch through a solenoid valve. It should be noted that the power supply and signal lines of each branch flow regulating component 42 are centrally connected to a follow-up electrical connector located on the outer wall of the hot air pressure stabilizing box 41. This follow-up electrical connector is connected to an external controller via a multi-core flexible main line, which bends and shifts with the rise and fall of the hot air pressure stabilizing box 41.

[0063] Through the above structure, the hot air pressure stabilizing box 41 first disperses and homogenizes the incoming hot air as a whole, and then the air supply volume of the corresponding central air supply pipe 43 is adjusted by each branch flow adjustment component 42. This can reduce the air supply difference between multiple workstations caused by different branch positions and flow resistance, and improve the consistency of drying of the same batch of gas cylinders. At the same time, the high temperature resistant corrugated pipe and centralized follow-up wiring structure can also adapt to the overall lifting and lowering of the internal air supply assembly 4.

[0064] Furthermore, the rated total air volume of the variable frequency blower is selected according to the required air supply volume of each central air supply branch when it is in the open state, and its rated static pressure meets the requirements of overcoming the flow resistance generated by the circulating air path, branch flow regulating component 42, check valve core 431 and central air supply pipe 43 jet structure; on this basis, each branch flow regulating component 42 adjusts the opening of the proportional regulating valve according to the detection result of the flow detection device so that the actual air supply volume of the corresponding central air supply pipe 43 is kept within the preset range.

[0065] See attached document Figure 8 As shown, the central air supply duct 43 includes a lower air supply section and an upper jet section with a diameter smaller than that of the lower air supply section. A valve seat and a check valve core 431 that cooperates with the valve seat are provided inside the variable diameter connection between the two.

[0066] A ventilation limiting frame 432 is fixedly installed inside the upper jet section. A valve stem extending axially along the central air supply pipe 43 and slidingly engaging with the ventilation limiting frame 432 is connected to a check valve core 431. An elastic reset member is sleeved on the outside of the valve stem. The elastic reset member acts on the check valve core 431 and the ventilation limiting frame 432 respectively.

[0067] A fixed spiral guide 433 is installed inside the upper jet section. Inclined exhaust holes are arranged circumferentially at intervals near the top of the upper jet section. At least two sets of inclined exhaust holes are arranged along the axial direction of the central air supply pipe 43.

[0068] Specifically, when no air is supplied, the elastic reset member causes the check valve core 431 to abut against the valve seat; when air is supplied, the hot air pressure pushes the check valve core 431 away from the valve seat and enters the upper jet section through the ventilation limit frame 432; after the air supply stops, the check valve core 431 is reset under the action of the elastic reset member to restrict the humid air in the bottle from entering the lower air supply channel in the reverse direction.

[0069] Meanwhile, under the continuous air supply state of the central air supply duct 43, a positive air supply pressure difference is maintained inside it from bottom to top, the check valve core 431 is in the pressure-open state, and hot air is continuously discharged from the central air supply duct 43 into the gas cylinder, thereby inhibiting the reverse entry of humid air in the cylinder into the central air supply duct 43; the humid air in the cylinder mainly enters the annular humidification channel through the humidification holes set on the periphery of the humidification outer sleeve 332, and then is guided into the gas-liquid collection box 31 through the humidification guide hole on the conical guide seat 331, so as to realize the relative separation of the air supply path and the humidification path.

[0070] Furthermore, the ventilation limit bracket 432 is used to axially guide the valve stem and allow hot air to pass through. After passing through the spiral guide 433, the hot air obtains a circumferential motion component and is then dispersed and discharged into the depth of the gas cylinder and the cylinder wall area through the inclined exhaust hole near the top of the central air supply pipe 43.

[0071] With the above structure, the check valve core 431 can automatically open and close according to the air supply status, reducing the possibility of humid air entering the air supply channel in the opposite direction; the spiral guide 433 cooperates with the inclined exhaust hole to make the hot air form a dispersed airflow with circumferential component in the depth of the gas cylinder, expand the range of hot air action in the depth of the cylinder and the inner wall, and improve the efficiency of moisture evaporation and humid air discharge from the cylinder wall.

[0072] See attached document Figure 1 As shown, the first lifting component is symmetrically arranged on both sides of the gas-liquid collection box 31 and connected to the gas-liquid collection box 31, and is used to drive the sealing and rehumidification assembly 3 to rise and fall vertically inside the drying box. The second lifting component is symmetrically arranged on both sides of the hot air pressure stabilizing box 41 and connected to the hot air pressure stabilizing box 41, and is used to drive the internal air supply assembly 4 to rise and fall vertically inside the drying box. The horizontal arrangement axes of the first and second lifting components are perpendicular to each other.

[0073] The drying chamber is equipped with a gas-liquid collection box 31 and a hot air pressure stabilizing box 41, which are connected by a vertically sliding guide rod.

[0074] Specifically, the first lifting component and the second lifting component are independent of each other. The first lifting component drives the gas-liquid collection box 31 and the sealing and rehumidification assembly 3 to rise and fall synchronously, so as to make the bottle mouth sealing seat 32 abut and seal with the bottle mouth of the inverted gas bottle; the second lifting component drives the hot air pressure stabilizing box 41 and the internal air supply assembly 4 to rise and fall synchronously, so as to adjust the depth of the central air supply pipe 43 into the gas bottle after the bottle mouth is sealed.

[0075] Furthermore, the first and second lifting components are symmetrically arranged on both sides of the corresponding chamber, and the gas-liquid collection box 31 and the hot air pressure stabilizing box 41 are vertically slidably engaged with the drying chamber through guide slide rods. The first lifting component can be a pneumatic lifting device, and the second lifting component can be a servo electric cylinder or a synchronous lead screw mechanism.

[0076] Through the above structure, the sealing of the bottle mouth and the fixed-depth insertion of the central air supply pipe 43 are completed in stages. The staggered arrangement of the two sets of lifting mechanisms 5 and the guide slide rod limit the lifting and lowering deviation, which reduces the spatial interference between the mechanisms and improves the stability of multi-station synchronous lifting and the insertion of the central air supply pipe 43.

[0077] See attached document Figure 3 As shown, a heater and a temperature detection device are installed in the hot air temperature control chamber 6. The air inlet of the hot air temperature control chamber 6 is connected to the air outlet of the hot air circulation assembly 7. The air outlet of the hot air temperature control chamber 6 is connected to the hot air pressure stabilizing box 41 through a rigid air inlet pipe and a high-temperature resistant corrugated pipe.

[0078] The hot air circulation assembly 7 includes a gas-liquid separator, a dehumidifier, a variable frequency blower, and a fresh air filter box. The bottom surface of the gas-liquid manifold 312 is inclined toward the gas-liquid outlet. The gas-liquid outlet is connected to the gas-liquid separator via a heat-resistant corrugated pipe and a gas-liquid main pipe. The gas outlet of the gas-liquid separator is connected to the air inlet of the dehumidifier.

[0079] The air inlet of the variable frequency blower includes two branch pipes. One branch pipe connects to the air outlet of the dehumidifier, and the other branch pipe connects to the fresh air filter box. The air outlet of the variable frequency blower connects to the hot air temperature control chamber 6. Specifically, the humid air and liquid water in the gas-liquid manifold 312 enter the gas-liquid separator through the gas-liquid main pipe. After separation, the liquid water is discharged, and the remaining humid air enters the dehumidification device to reduce its moisture content before entering the recirculation return air branch of the variable frequency blower. The fresh air branch connected to the fresh air filter box is equipped with an opening and closing adjustment device. During the normal circulation drying phase, it remains closed or only maintains the opening degree required to compensate for system leakage. During the start-up replacement or drying end purging phase, the opening degree of the fresh air branch is increased.

[0080] A variable frequency blower sends air into the hot air temperature control chamber 6 for heating, while a temperature detection device is used to detect the outlet air temperature and provide feedback to control the working status of the heater. In this embodiment, hot air of about 70°C to 100°C can be used to dry the inside of the gas cylinder. Then the hot air enters the hot air pressure stabilizing box 41 through a rigid air inlet pipe and a high-temperature resistant corrugated pipe.

[0081] The above structure allows the liquid water and humid air discharged from the gas cylinder to undergo gas-liquid separation and dehumidification in sequence, and the treated air can be reheated and recycled. At the same time, filtered fresh air can be added as needed, thereby reducing the moisture content of the circulating air and reducing heat loss caused by the direct discharge of hot and humid air, and improving the thermal energy utilization rate during the drying process inside the gas cylinder.

[0082] The specific operation process of this invention is as follows: First, the gas cylinder to be dried is inverted, and the operator inserts it into the corresponding pre-positioning component 2 with the cylinder opening facing downwards. The outer peripheral structure near the cylinder opening pushes the radial positioning block 23 outwards. Under the action of the annular elastic clamping member, each radial positioning block 23 retracts back towards the center, while the conical transition area above the cylinder opening gradually abuts against the elastic protective layer inside the conical positioning sleeve 22. When the first pressure detection component detects that the pressure has reached the set range, the corresponding workstation sends a signal that the gas cylinder is installed in place. Subsequently, the pneumatic clamping component 1 closes and clamps the gas cylinder body.

[0083] After all the gas cylinders to be processed have been placed and clamped, the first lifting component is activated. The first lifting component moves the gas-liquid collection box 31, the cylinder mouth sealing seat 32, and the return moisture sleeve assembly 33 upwards as a whole. The return moisture sleeve 332 enters the gas cylinder from the cylinder mouth, and the annular elastic seal at the top of the cylinder mouth sealing seat 32 gradually comes into contact with the cylinder mouth end face. When the second pressure detection device detects the predetermined sealing pressure, the first lifting component stops and maintains its current position.

[0084] The second lifting component is then activated, which drives the hot air pressure stabilizing box 41, the branch flow regulating component 42, and the central air supply duct 43 to rise synchronously. Under the combined constraint of the guide wheel 313, the central through-channel 321, the conical guide seat 331, and the through hole at the top of the return humidification outer jacket 332, the central air supply duct 43 moves upward along the axial direction and extends to a set depth according to the pre-selected gas cylinder specifications.

[0085] After the central air supply duct 43 reaches the set insertion position, the variable frequency blower and the heater in the hot air temperature control chamber 6 are started. The circulating air after gas-liquid treatment and the fresh air that needs to be replenished enter the variable frequency blower, are pressurized and transported into the hot air temperature control chamber 6 for heating, and then enter the hot air pressure stabilizing box 41 through the rigid air inlet duct and the high temperature resistant corrugated pipe.

[0086] The hot air entering the hot air pressure stabilizing box 41 first enters the first pressure distribution chamber through the conical diffuser 412, and then passes through the air distribution plate 411 to enter the second pressure distribution chamber. Each branch flow regulating component 42 detects the actual air supply volume of the corresponding central air supply duct 43, and adjusts the branch opening through the proportional regulating valve to ensure that each working position supplies air according to the set value.

[0087] After hot air enters the central air supply duct 43, it pushes the check valve core 431 to open, passes through the ventilation limiting bracket 432 and the spiral guide 433 in sequence, and is then discharged into the depth of the gas cylinder through multiple sets of inclined exhaust holes near the top of the central air supply duct 43. Since the jet position of the central air supply duct 43 is significantly higher than the main humidification position of the humidification outer jacket 332, the hot air diffuses from near the closed end of the gas cylinder to the surrounding cylinder wall, and moves towards the cylinder opening under the action of continuous air supply and return.

[0088] When hot air flows through the inside of the bottle, it carries away the moisture in the water film on the bottle wall. As the humid air moves towards the bottle opening, part of it enters the annular humidification channel through multiple humidification holes on the periphery of the humidification outer sleeve 332. At the same time, another part of the unvaporized residual liquid water on the bottle wall and the water droplets formed by the aggregation along the bottle wall flow towards the bottle opening under the action of gravity. After reaching the bottle opening, it is guided downward along the outer cone surface of the conical guide seat 331 and enters the annular liquid collection chamber 322 through the humidification guide holes on the periphery of the conical guide seat 331. Then, it enters the gas-liquid confluence chamber 312 through the gas-liquid through hole at the bottom of the bottle opening sealing seat 32 and the permeable area at the top of the gas-liquid collection box 31. Thus, the humid air and liquid water in the bottle are collected into the gas-liquid confluence chamber 312 through their respective paths.

[0089] Moist air and liquid water enter the gas-liquid manifold 312 through the annular liquid collection chamber 322, and then enter the gas-liquid separator through the heat-resistant corrugated pipe and the fixed gas-liquid main pipe. The gas-liquid separator first removes the entrained liquid water, and the remaining moist air enters the dehumidification device to reduce its moisture content. The treated air re-enters the variable frequency blower, is reheated in the hot air temperature-regulating chamber 6, and then returns to the hot air pressure stabilizing box 41, thus forming a circulating dry air path.

[0090] When the flow rate at a certain workstation is abnormal or no gas cylinder is placed, the corresponding branch can be closed by the solenoid valve in the corresponding branch flow regulating component 42. When there is a deviation in the actual flow rate of different branches, the controller adjusts the proportional regulating valve according to the feedback from each flow detection device, without having to rely solely on changing the total speed of the variable frequency blower to correct all workstations simultaneously.

[0091] Once the set drying time or preset drying conditions are met, the heater in the hot air temperature control chamber 6 is turned off, allowing the variable frequency blower to continue running for a period of time for purging.

[0092] Then, all gas supply branches are shut off. The second lifting component descends first, causing the central air supply pipe 43 to exit the gas cylinder and return to its initial position. The first lifting component then descends, causing the cylinder mouth sealing seat 32 and the return moisture sleeve assembly 33 to disengage from the gas cylinder mouth. Finally, the pneumatic cylinder clamping assembly 1 is released, and the operator removes the dried gas cylinder.

[0093] Through the above working process, the bottle mouth pre-positioning component 2 establishes a unified bottle mouth installation benchmark, the sealing and rehumidification assembly 3 is responsible for sealing the bottle mouth, external rehumidification and gravity liquid collection, the internal air supply assembly 4 realizes deep air supply according to the length of the gas cylinder, and the hot air circulation assembly 7 separates and dehumidifies the recovered gas-liquid mixture for reuse, so that multiple functional structures work together around the same central air supply, external rehumidification and circulation dehumidification path.

[0094] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A seamless gas cylinder internal dehydration and drying energy-saving device, characterized in that, It includes a bottle body pneumatic clamping assembly (1), a bottle mouth prepositioning assembly (2), a sealing and rehumidification assembly (3), an internal air supply assembly (4), a lifting mechanism (5) and a hot air temperature control chamber (6) and a hot air circulation assembly (7) located outside the drying chamber. Multiple bottle body pneumatic clamping components (1) are arranged in a one-to-one correspondence with multiple bottle mouth prepositioning components (2), and each bottle mouth prepositioning component (2) is located below the corresponding bottle body pneumatic clamping component (1); The sealing and rehumidification assembly (3) includes a gas-liquid collection box (31), multiple bottle mouth sealing seats (32), and a rehumidification sleeve assembly (33) coaxially arranged therewith. A gas-liquid confluence chamber (312) is formed in the gas-liquid collection box (31) and communicates with each bottle mouth sealing seat (32). Each bottle mouth sealing seat (32) is located directly below the corresponding bottle mouth prepositioning assembly (2), and the axes of the two coincide. The internal air supply assembly (4) includes a hot air pressure stabilizing box (41) and a plurality of central air supply pipes (43). Each central air supply pipe (43) is connected to the hot air pressure stabilizing box (41) through an air supply branch, and is coaxial with the corresponding return moisture sleeve assembly (33) and can move relative to its axial direction. The return moisture sleeve assembly (33) forms an annular return moisture channel located outside the corresponding central air supply pipe (43). The annular return moisture channel is connected to the gas-liquid manifold (312). The lifting mechanism (5) includes a first lifting component and a second lifting component that are independent of each other. The first lifting component causes the bottle mouth sealing seat (32) to first come into contact with and seal the bottle mouth of the inverted gas cylinder. The second lifting component causes the central air supply pipe (43) to extend into the gas cylinder. The hot air circulation assembly (7) connects the gas-liquid manifold (312) and the hot air temperature control chamber (6), and the hot air temperature control chamber (6) connects to the hot air pressure stabilizing box (41), forming an airflow path that delivers air deep into the center of the bottle, returns moisture to the periphery, and circulates the air.

2. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The pneumatic clamping assembly (1) for holding the body of the gas cylinder is provided with a pneumatic clamping component for holding the body of the gas cylinder; The pre-positioning component (2) for the bottle mouth includes a positioning receiving ring (21), a conical positioning sleeve (22), and a plurality of radial positioning blocks (23). The positioning receiving ring (21) is coaxially fixed with the conical positioning sleeve (22) and forms a positioning channel for inserting the bottle mouth end of the gas supply bottle. The plurality of radial positioning blocks (23) are respectively radially slidably engaged with the sliding grooves arranged at intervals along the circumference of the positioning receiving ring (21). The plurality of radial positioning blocks (23) are connected together on the side away from the positioning channel by an annular elastic clamping member that applies a radial contraction force to it. The inner circumferential surface of the conical positioning sleeve (22) forms an inner conical surface that gradually narrows from top to bottom, and the inner conical surface is provided with an elastic protective layer.

3. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The gas-liquid collection box (31) is provided with an inner tube clearance channel (311) that runs through its height direction for each bottle mouth sealing seat (32). The inner tube clearance channel (311) is separated from the gas-liquid confluence chamber (312) by a solid wall. The outer bottom wall of the gas-liquid collection box (31) is provided with guide wheels (313) corresponding to each inner tube clearance channel (311), and the guide wheels (313) are distributed at 120° equiangular angles around the axis of the corresponding inner tube clearance channel (311). The bottle mouth sealing seat (32) is provided with a central through channel (321) coaxial with the inner tube avoidance channel (311) and an annular liquid collection cavity (322) arranged around the central through channel (321). The bottom of the bottle mouth sealing seat (32) is provided with multiple gas-liquid through holes corresponding to the annular liquid collection cavity (322). The top of the gas-liquid collection box (31) is provided with a permeable area corresponding to each bottle mouth sealing seat (32) and communicating with the gas-liquid confluence cavity (312). The annular liquid collection cavity (322) is connected to the gas-liquid confluence cavity (312) through the gas-liquid through holes and permeable area. The top of the bottle mouth sealing seat (32) is provided with an annular elastic seal for abutting the end face of the inverted gas bottle mouth.

4. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 3, characterized in that: The rehumidification sleeve assembly (33) includes a conical guide seat (331) and a rehumidification outer sleeve (332). The conical guide seat (331) is fixed to the bottle mouth sealing seat (32) and coaxial with the central through channel (321). The conical guide seat (331) is narrow at the top and wide at the bottom, and multiple rehumidification guide holes are opened at intervals along its circumferential side. The lower end of the rehumidification outer sleeve (332) is fixed on the conical guide seat (331). The return moisture outer sleeve (332) is sleeved on the outside of the corresponding central air supply pipe (43) and forms an annular return moisture channel therebetween. The annular return moisture channel is connected to the annular liquid collection chamber (322) through the return moisture guide hole. The circumferential wall of the return humidification outer sleeve (332) is provided with a plurality of return humidification holes at intervals along the circumferential direction. The return humidification holes are provided in multiple sets along the axial direction of the return humidification outer sleeve (332). The length of the return humidification outer sleeve (332) is less than the effective insertion length of the central air supply duct (43). The conical guide seat (331) and the return humidification outer jacket (332) are respectively provided with a central guide hole and a top through hole for the central air supply pipe (43) to pass through. The inner pipe avoidance channel (311), the central through channel (321), the central guide hole and the top through hole are all clearance fit with the central air supply pipe (43). The guide wheel (313) is in rolling fit with the outer peripheral wall of the central air supply pipe (43).

5. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The hot air pressure stabilizing box (41) is provided with an air distribution plate (411). The air distribution plate (411) divides the hot air pressure stabilizing box (41) into a first pressure distribution chamber and a second pressure distribution chamber located above the first pressure distribution chamber. A conical diffuser (412) corresponding to the air inlet is provided at the center of the bottom of the first pressure distribution chamber. The air inlet is connected to the rigid air inlet pipe of the hot air temperature regulating chamber (6) through a high-temperature resistant corrugated pipe. Each of the central air supply pipes (43) is connected to the second pressure chamber through a corresponding branch flow regulating component (42). The branch flow regulating component (42) is connected in series with a flow detection element, a proportional regulating valve and a solenoid valve.

6. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 5, characterized in that: The central air supply pipe (43) includes a lower air supply section and an upper jet section with a diameter smaller than that of the lower air supply section. A valve seat and a check valve core (431) that cooperates with the valve seat are provided inside the variable diameter connection between the two. A ventilation limiting frame (432) is fixedly installed inside the upper jet section. The check valve core (431) is connected to a valve stem that extends axially along the central air supply pipe (43) and slides in cooperation with the ventilation limiting frame (432). An elastic reset member is sleeved on the outside of the valve stem. The elastic reset member acts on the check valve core (431) and the ventilation limiting frame (432) respectively. The upper jet section is provided with a fixed spiral guide (433), and the upper jet section is provided with inclined exhaust holes distributed circumferentially near its top. At least two sets of the inclined exhaust holes are arranged along the axial direction of the central air supply pipe (43).

7. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The first lifting component is symmetrically arranged on both sides of the gas-liquid collection box (31) and connected to the gas-liquid collection box (31) to drive the sealing and rehumidification assembly (3) to rise and fall vertically inside the drying box. The second lifting component is symmetrically arranged on both sides of the hot air pressure stabilizing box (41) and connected to the hot air pressure stabilizing box (41) to drive the internal air supply assembly (4) to rise and fall vertically inside the drying box. The horizontal arrangement axes of the first and second lifting components are perpendicular to each other. The drying chamber is equipped with a gas-liquid collection box (31) and a hot air pressure stabilizing box (41), which are connected by a vertically sliding guide rod.

8. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The hot air temperature control chamber (6) is equipped with a heater and a temperature detection device. The air inlet of the hot air temperature control chamber (6) is connected to the air outlet of the hot air circulation assembly (7). The air outlet of the hot air temperature control chamber (6) is connected to the hot air pressure stabilizing box (41) through a rigid air inlet pipe and a high-temperature resistant corrugated pipe.

9. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: The hot air circulation assembly (7) includes a gas-liquid separator, a dehumidifier, a frequency converter blower and a fresh air filter box. The bottom surface of the gas-liquid manifold (312) is inclined toward the gas-liquid outlet. The gas-liquid outlet is connected to the gas-liquid separator via a heat-resistant corrugated pipe and a gas-liquid main pipe. The gas outlet of the gas-liquid separator is connected to the air inlet of the dehumidifier. The air inlet of the variable frequency blower includes two converging branch pipes. One branch pipe is connected to the air outlet of the dehumidification device, and the other branch pipe is connected to the fresh air filter box. The air outlet of the variable frequency blower is connected to the hot air temperature control chamber (6).

10. The seamless gas cylinder internal dehydration and drying energy-saving device according to claim 1, characterized in that: A first pressure detection element is provided between the elastic protective layer of the conical positioning sleeve (22) and the conical positioning sleeve (22), and a second pressure detection element is provided between the annular elastic sealing element of the bottle mouth sealing seat (32) and the bottle mouth sealing seat (32). Both the first pressure detection element and the second pressure detection element are electrically connected to the external controller of the drying oven.

Images