阅读说明：本技术 一种全自动钢瓶切换供气系统 (Full-automatic steel bottle switching air supply system ) 是由 周如伟 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种全自动钢瓶切换供气系统,涉及供气系统技术领域,解决了现有的供气系统在使用时,需要人工对供气中的气瓶进行手动切换,才能保证供气不会出现中断的问题。一种全自动钢瓶切换供气系统,包括两个气瓶,所述气瓶的上端一侧设置有气瓶连接管,所述气瓶连接管的顶端安装有转接管,所述转接管的外侧设置有开关阀门,所述转接管的外表面一侧设置有输气管,所述输气管的中间位置处设置有减压器,所述减压器的上方安装有PLC控制器,两个所述输气管的中间设置有三通连接块。本发明通过设置有切换机构和密封机构可以在系统供气时无需人工操作,便可自由的切换供气用的钢瓶与管道之间的连接开启或关闭,保证供气不会出现中断。(The invention discloses a full-automatic steel cylinder switching gas supply system, relates to the technical field of gas supply systems, and solves the problem that the gas supply can not be interrupted only by manually switching gas cylinders in gas supply when the existing gas supply system is used. The utility model provides a full-automatic gas supply system is switched to steel cylinder, includes two gas cylinders, upper end one side of gas cylinder is provided with the gas cylinder connecting pipe, the switching pipe is installed on the top of gas cylinder connecting pipe, the outside of switching pipe is provided with switch valve, surface one side of switching pipe is provided with the gas-supply pipe, the intermediate position department of gas-supply pipe is provided with the pressure reducer, the PLC controller is installed, two to the top of pressure reducer the centre of gas-supply pipe is provided with the tee bend connecting block. The invention can freely switch the connection between the steel cylinder for gas supply and the pipeline to be opened or closed without manual operation when the system supplies gas by arranging the switching mechanism and the sealing mechanism, thereby ensuring that the gas supply can not be interrupted.)

1. The utility model provides a full-automatic gas supply system is switched to steel cylinder, includes two gas cylinders (1), its characterized in that: a gas cylinder connecting pipe (2) is arranged on one side of the upper end of the gas cylinder (1), a switching pipe (3) is installed at the top end of the gas cylinder connecting pipe (2), a switch valve (7) is arranged on the outer side of the adapter tube (3), a gas pipe (4) is arranged on one side of the outer surface of the adapter tube (3), a pressure reducer (8) is arranged in the middle of the gas transmission pipes (4), a PLC (programmable logic controller) controller (9) is arranged above the pressure reducer (8), a three-way connecting block (13) is arranged in the middle of the two gas transmission pipes (4), an equipment connecting pipe (15) is connected above the three-way connecting block (13), one end part of the three-way connecting block (13) is provided with a first air inlet (11), a second air inlet (12) is arranged at the end part of the other end of the three-way connecting block (13), a switching mechanism (5) is arranged between the first air inlet (11) and the second air inlet (12);

the switching mechanism (5) comprises a switching sealing slide block (501), the end faces of the two ends of the switching sealing slide block (501) are respectively provided with an inward-concave sealing end hole (508), filling bins (507) are arranged inside two ends of the switching sealing sliding block (501), two connecting rods (502) are respectively arranged on the two end surfaces of the switching sealing slide block (501), one end of the connecting rod (502) is inserted in the three-way connecting block (13) and is connected with the three-way connecting block (13) in a sliding way, the surface of the end part of the connecting rod (502) inserted in the three-way connecting block (13) is provided with a limit ring (504), the other side of spacing ring (504) is inlayed and is provided with permanent magnet (505), the inside electro-magnet (506) that all is provided with in both ends of tee bend connecting block (13), permanent magnet (505) and electro-magnet (506) magnetism are connected.

2. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: the inboard activity of seal end hole (508) is provided with sealing mechanism (6), sealing mechanism (6) are including sealing baffle (601), sealing baffle (601) are provided with two gangbar (602) towards the side of seal end hole (508) internal surface, the one end of gangbar (602) is run through and is switched sealed slider (501) and extend to the inboard of filling storehouse (507), the tip that gangbar (602) extended to filling storehouse (507) inboard is provided with stripper plate (604), the opposite side of stripper plate (604) is provided with silica gel filler (603), silica gel filler (603) are filled in the inboard of filling storehouse (507).

3. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: an emptying pipe is arranged at the upper end of the adapter pipe (3), and an emptying valve (10) is arranged on the outer surface of the emptying pipe.

4. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: both ends and the upper surface of tee bend connecting block (13) all are provided with the pipeline connection port, the pipeline connection port passes through welded fastening with tee bend connecting block (13).

5. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: the outer surface of the connecting rod (502) is provided with a sealing sleeve (503), one end of the sealing sleeve (503) is clamped in the inner wall of the three-way connecting block (13), and the sealing sleeve (503) is made of rubber.

6. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: the inner outer sides of the first air inlet (11) and the second air inlet (12) are respectively provided with a positioning groove (14), and the inner wall of each positioning groove (14) is provided with an annular filling clamping groove (17).

7. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: one end of the gas cylinder connecting pipe (2) is completely attached to the bottom end of the switching pipe (3), and the gas cylinder connecting pipe (2) and the switching pipe (3) are integrally formed in an injection molding mode.

8. The full-automatic steel bottle switching gas supply system according to claim 1, characterized in that: an air pressure sensor (16) is arranged below the pressure reducer (8), and the air pressure sensor (16) is electrically connected with the PLC (9) and the electromagnet (506).

9. The full-automatic steel bottle switching gas supply system according to claim 2, characterized in that: the material of silica gel filler (603) is silica gel and is the jelly, silica gel filler (603) have certain mobility and elasticity.

10. The full-automatic steel bottle switching gas supply system according to claim 5, characterized in that: the outer side of the sealing sleeve (503) is provided with a return spring, and the length of the return spring is twice that of the sealing sleeve (503).

Technical Field

The invention relates to the technical field of gas supply systems, in particular to a full-automatic steel bottle switching gas supply system.

Background

With the rapid development of social economy, a gas supply system provides protective gas with stable flow to a welding area, the gas supply system comprises a gas cylinder, a pressure reducing valve, a preheater, a flowmeter, a dryer, pipelines and the like, the dispersed gas cylinder gas supply modes in factory workshops and laboratories become more and more obsolete and are gradually abandoned, and the gas supply system conveys gas in central gas storage equipment to each dispersed terminal for gas supply through a switching device and a pressure regulating pipeline system.

However, when the existing gas supply system is used, the gas cylinder in gas supply needs to be manually switched, so that the gas supply can not be interrupted; therefore, the existing requirements are not met, and a full-automatic steel bottle switching air supply system is provided for the requirements.

Disclosure of Invention

The invention aims to provide a full-automatic steel cylinder switching gas supply system, which solves the problems that the gas supply can not be interrupted and the like only by manually switching gas cylinders in gas supply when the existing gas supply system provided in the background art is used.

In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic steel cylinder switching gas supply system comprises two gas cylinders, wherein a gas cylinder connecting pipe is arranged on one side of the upper end of each gas cylinder, a switching pipe is installed at the top end of each gas cylinder connecting pipe, a switch valve is arranged on the outer side of each switching pipe, a gas pipe is arranged on one side of the outer surface of each switching pipe, a pressure reducer is arranged in the middle of each gas pipe, a PLC (programmable logic controller) is installed above each pressure reducer, a three-way connecting block is arranged in the middle of each gas pipe, an equipment connecting pipe is connected above each three-way connecting block, a first gas inlet is formed in one end of each three-way connecting block, a second gas inlet is formed in the other end of each three-way connecting block, and a switching mechanism is arranged between each first gas inlet and each second gas inlet;

the switching mechanism comprises a switching sealing slide block, the end faces of the two ends of the switching sealing slide block are provided with inwards-sunken sealing end holes, the filling bins are arranged inside the two ends of the switching sealing slide block, the surfaces of the two ends of the switching sealing slide block are provided with two connecting rods, one end of each connecting rod is inserted into the three-way connecting block and is in sliding connection with the three-way connecting block, the end surface of each connecting rod inserted into the three-way connecting block is provided with a limiting ring, the other side of each limiting ring is embedded with a permanent magnet, electromagnets are arranged inside the two ends of the three-way connecting block, and the permanent magnets are magnetically connected with the electromagnets.

Preferably, the inboard activity in sealed end hole is provided with sealing mechanism, sealing mechanism includes sealing baffle, sealing baffle is provided with two gangbars towards the side of sealed end downthehole surface, the one end of gangbar is run through and is switched sealed slider and extend to the inboard in filling the storehouse, the tip that the gangbar extends to filling the storehouse inboard is provided with the stripper plate, the opposite side of stripper plate is provided with the silica gel filler, the inboard at the filling storehouse is filled to the silica gel filler.

Preferably, the upper end of the adapter tube is provided with an emptying tube, and the outer surface of the emptying tube is provided with an emptying valve.

Preferably, both ends and the upper surface of the three-way connecting block are provided with pipeline connecting ports, and the pipeline connecting ports are fixed with the three-way connecting block through welding.

Preferably, the outer surface of the connecting rod is provided with a sealing sleeve, one end of the sealing sleeve is clamped in the inner wall of the three-way connecting block, and the sealing sleeve is made of rubber.

Preferably, the outer sides of the inner ends of the first air inlet and the second air inlet are both provided with positioning grooves, and the inner walls of the positioning grooves are provided with annular filling clamping grooves.

Preferably, one end of the gas cylinder connecting pipe is completely attached to the bottom end of the switching pipe, and the gas cylinder connecting pipe and the switching pipe are integrally formed in an injection molding mode.

Preferably, an air pressure sensor is arranged below the pressure reducer and electrically connected with the PLC and the electromagnet.

Preferably, the material of silica gel filler is silica gel and is jelly, the silica gel filler has certain mobility and elasticity.

Preferably, the outer side of the sealing sleeve is provided with a return spring, and the length of the return spring is twice of that of the sealing sleeve.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention cuts off the power supply through the electromagnet inside one end of the three-way connecting block, and simultaneously the electromagnet inside the other end of the three-way connecting block is electrified, at the moment, the electromagnet with the cut-off end of the three-way connecting block loses the adsorption force on the corresponding permanent magnet, so that the switching sealing slide block loses the tension force from the connecting rod, the other electromagnet can attract the corresponding permanent magnet and elastically recover the return spring close to the attracted permanent magnet, under the attraction of the electromagnet on the permanent magnet and the push of the return spring, the switching sealing slide block can move from one end of the three-way connecting block to the other end to open the originally closed first air inlet or second air inlet, and simultaneously the originally opened second air inlet or first air inlet is closed, so that the connection between the steel cylinder for air supply and the pipeline can be freely switched to be opened or closed without manual operation during the air supply of the system, the air supply is ensured not to be interrupted;

2. when the switching sealing slide block is switched to seal the first air inlet or the second air inlet, the sealing baffle plate can be gradually attached to the inner wall of the three-way connecting block along with the switching sealing slide block to completely shield the inner end port of the first air inlet or the second air inlet, when the switching sealing slide block completely seals the first air inlet or the second air inlet, the sealing baffle plate completely enters the inner side of the sealing end hole, and the silica gel filler is extruded through the extrusion plate, so that the silica gel filler flows out from the opening of the filling bin on the inner wall of the sealing end hole and is filled in the inner side of the annular filling clamping groove, a gap between the switching sealing slide block and the three-way connecting block is completely sealed, and the sealing property in the device can be always kept when internal air supply is switched.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a cross-sectional view of a three-way junction block of the present invention;

FIG. 3 is a schematic structural diagram of the switching mechanism of the present invention;

FIG. 4 is a schematic structural view of the sealing mechanism of the present invention;

FIG. 5 is a schematic structural view of a sealing slider according to the present invention;

FIG. 6 is a schematic view of the structure of the extrusion plate of the present invention.

In the figure: 1. a gas cylinder; 2. a gas cylinder connecting pipe; 3. a transfer tube; 4. a gas delivery pipe; 5. a switching mechanism; 501. switching the sealing slide block; 502. a connecting rod; 503. sealing sleeves; 504. a limiting ring; 505. a permanent magnet; 506. an electromagnet; 507. filling a bin; 508. sealing the end hole; 6. a sealing mechanism; 601. sealing the baffle; 602. a linkage rod; 603. a silica gel filler; 604. a pressing plate; 7. opening and closing the valve; 8. a pressure reducer; 9. a PLC controller; 10. an evacuation valve; 11. a first air inlet; 12. a second air inlet; 13. a three-way connecting block; 14. positioning a groove; 15. an equipment connecting pipe; 16. an air pressure sensor; 17. the ring fills the card slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The air pressure sensor 16 (model number T2000) referred to in the present invention may be obtained from a commercially available or proprietary customization.

Referring to fig. 1 to 6, an embodiment of the present invention includes: a full-automatic steel cylinder switching gas supply system comprises two gas cylinders 1, a gas cylinder connecting pipe 2 is arranged on one side of the upper end of each gas cylinder 1, a switching pipe 3 is installed at the top end of each gas cylinder connecting pipe 2, a switch valve 7 is arranged on the outer side of each switching pipe 3, a gas pipe 4 is arranged on one side of the outer surface of each switching pipe 3, a pressure reducer 8 is arranged in the middle of each gas pipe 4, a PLC (programmable logic controller) 9 is installed above each pressure reducer 8, a three-way connecting block 13 is arranged in the middle of each gas pipe 4, an equipment connecting pipe 15 is connected above each three-way connecting block 13, a first gas inlet 11 is arranged at one end of each three-way connecting block 13, a second gas inlet 12 is arranged at the other end of each three-way connecting block 13, and a switching mechanism 5 is arranged between each first gas inlet 11 and each second gas inlet 12;

switching mechanism 5 is including switching sealed slider 501, the both ends terminal surface of switching sealed slider 501 all is provided with inside sunken sealed end hole 508, the inside storehouse 507 that fills that all is provided with in both ends of switching sealed slider 501, the both ends surface of switching sealed slider 501 all is provided with two connecting rods 502, the one end of connecting rod 502 is pegged graft in the inside of tee bend connecting block 13 and with tee bend connecting block 13 sliding connection, the connecting rod 502 is pegged graft and is provided with spacing ring 504 at the inside tip surface of tee bend connecting block 13, the opposite side of spacing ring 504 is inlayed and is provided with permanent magnet 505, the inside electro-magnet 506 that all is provided with in both ends of tee bend connecting block 13, permanent magnet 505 and electro-magnet 506 magnetism are connected.

Further, a sealing mechanism 6 is movably arranged on the inner side of the sealing end hole 508, the sealing mechanism 6 comprises a sealing baffle 601, two linkage rods 602 are arranged on the side face, facing the inner surface of the sealing end hole 508, of the sealing baffle 601, one end of each linkage rod 602 penetrates through the switching sealing sliding block 501 and extends to the inner side of the filling bin 507, an extrusion plate 604 is arranged at the end part, extending to the inner side of the filling bin 507, of each linkage rod 602, a silica gel filler 603 is arranged on the other side of the extrusion plate 604, the silica gel filler 603 is filled in the inner side of the filling bin 507, after the switching sealing sliding block 501 is switched, the sealing performance inside the device is guaranteed, and gas leakage or gas entering another pipeline cannot occur.

Further, the upper end of switching pipe 3 is provided with the evacuation pipe, and the surface of evacuation pipe is provided with evacuation valve 10, can empty the remaining residual gas behind the air feed in the gas cylinder through evacuation pipe and evacuation valve 10, guarantees that there is not gaseous inside the gas cylinder, makes things convenient for follow-up recovery and aerifys once more.

Further, both ends and the upper surface of tee junction block 13 all are provided with the pipe connection port, and the pipe connection port passes through welded fastening with tee junction block 13, and the welding has strengthened the connection performance and the seal strength of pipe connection port and tee junction block 13, and there can not be gas leakage in the junction when the air feed.

Further, the outer surface of connecting rod 502 is provided with seal cover 503, and the one end joint of seal cover 503 is in the inner wall of tee bend connecting block 13, and the material of seal cover 503 is rubber, and seal cover 503 can guarantee to carry out sealed the packing with the gap in the middle of connecting rod 502 and the tee bend connecting block 13 when switching sealed slider 501 and freely switching over.

Further, the inner outsides of first air inlet 11 and second air inlet 12 all are provided with constant head tank 14, are provided with annular packing draw-in groove 17 on the inner wall of constant head tank 14, and constant head tank 14 makes and switches sealed slider 501 and can cover the port of first air inlet 11 or second air inlet 12 completely after switching, and annular packing draw-in groove 17 can seal the gap after silica gel filler 603 fills the entering, guarantees that first air inlet 11 or second air inlet 12 seals completely.

Further, the one end of gas cylinder connecting pipe 2 is laminated completely with the bottom of switching pipe 3, and gas cylinder connecting pipe 2 passes through integration injection moulding with switching pipe 3, and the part monolithic connection after the integration injection moulding is stable, mechanical strength is high, and can not appear easily damaging or fracture long service life.

Further, the pressure sensor 16 is arranged below the pressure reducer 8, the pressure sensor 16 is electrically connected with the PLC 9 and the electromagnet 506, and switching of the sealing sliding block 501 can be timely performed when the air pressure inside one of the air cylinders 1 is insufficient, so that the gas inside the gas supply system cannot be interrupted.

Further, the material of silica gel filler 603 is silica gel and is the jelly, and silica gel filler 603 has certain mobility and elasticity, guarantees when stripper plate 604 extrudes silica gel filler 603, and silica gel filler 603 can flow out the port of filling storehouse 507 and get into annular filling draw-in groove 17 inboard, fills the gap between switching seal slider 501 and the tee junction block 13.

Further, the outer side of the sealing sleeve 503 is provided with a return spring, the length of the return spring is twice that of the sealing sleeve 503, and the return spring can assist the limit ring 504 when the electromagnet 506 inside one end of the three-way connecting block 13 is powered off and the electromagnet 506 at the other end is powered on, so that the powered electromagnet 506 and the permanent magnet 505 corresponding to the electromagnet 506 can be smoothly butted.

The working principle is as follows: when the device is used, when the pressure of air flow conveyed inside the air conveying pipe 4 connected with one end of the three-way connecting block 13 is reduced, the air pressure sensor 16 connected with the air conveying pipe 4 feeds back signals to the PLC 9, then the PLC 9 performs feedback processing, after the processing is finished, the electromagnet 506 on the inner side of the end part of the three-way connecting block 13 connected with the air conveying pipe 4 is powered off, the electromagnet 506 on the other end of the three-way connecting block 13 is powered on, when the electromagnet 506 on one end of the three-way connecting block 13 is powered off, the connection between the electromagnet 506 and the permanent magnet 505 is broken, so that the switching sealing slide block 501 loses the tensile force from the connecting rod 502, the other electromagnet 506 attracts the corresponding permanent magnet 505 and elastically restores the return spring close to the attracted permanent magnet 505, and under the attraction of the electromagnet 506 to the permanent magnet 505 and the pushing of the return spring, the switching sealing slide block 501 moves from one end of the three-way connecting block 13 to the other end, open original confined first air inlet 11 or second air inlet 12, the second air inlet 12 or the first air inlet 11 that simultaneously originally opened seal, guarantee that the gas-supply pipe 4 of the three way connection piece 13 other end lasts the air feed, and original gas-supply pipe 4 stops the air feed, can need not manual operation when the system air feed, alright free switching steel bottle and the pipe between be connected and open or close, guarantee that the air feed can not appear interrupting.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.