Corrosion-resistant switchable pressure reducing valve double-bottle busbar

Abstract

The utility model relates to the technical field of double-bottle busbars, in particular to a corrosion-resistant switchable pressure reducing valve double-bottle busbar. According to the technical scheme, the device comprises a mounting panel, a shell, a mounting plate, a high-pressure gas pipeline, a supporting block and a driving mechanism; the shell is mounted on the top end surface of the mounting panel; a box body is mounted on the rear end surface of the shell; a limiting frame is arranged on the front end surface of the mounting plate; a screw rod is arranged on an output shaft of the driving mechanism; an air storage tank is placed on the top end face of the supporting block. A first valve is installed on the high-pressure gas conveying pipeline through a flange plate, and first connecting pipes are arranged at the two ends of the high-pressure gas conveying pipeline. A pressure reducing valve body is mounted on the connecting pipe I through a flange plate; and a valve II is mounted on the gas storage tank through a flange plate. The double-bottle bus-bar can be used, the situation that normal gas supply is affected by damage of a single pressure reducing valve is avoided during use, the bottle bodies can be pushed out after gas supply, and the situation that maintenance and replacement are affected by narrow space is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of double-bottle manifolds, in particular to a corrosion-resistant and switchable pressure-reducing valve double-bottle manifold. Background Technique

[0002] A gas manifold is a device that centralizes the gas sources for individual gas-using points, which are individually supplied, and aggregates multiple gas-containing containers (high-pressure steel cylinders, cryogenic Dewar flasks, etc.) to achieve centralized gas supply in order to improve work efficiency and ensure safe production.

[0003] After retrieval, the patent publication number CN220817425U discloses a gas manifold that is convenient for installation. In this application, a gas manifold that is convenient for installation includes a manifold carriage. The bottom end of the manifold carriage is fixedly installed with wheels. The front bottom of the manifold carriage is fixedly installed with an inclined plate. The inner rear end of the manifold carriage is fixedly connected with a metal ring through bolts. A metal rod is fixedly connected inside the metal ring. The other side of the metal rod away from the metal ring is fixedly connected with a fixing block. Hinges are fixedly installed on both side ends of the fixing block. Limited metal rings are rotatably connected to both sides of the fixing block through the hinges. A buckle is fixedly installed on the surface of the limited metal ring away from the fixing block. A locking mechanism is sleeved on the surface of the buckle. This device designs the gas manifold into a movable carriage, which is convenient for installation, disassembly, and movement at any time, and has a gas cylinder limiting device inside, improving the stability of the device.

[0004] In the prior art, CN220817425U is convenient for installation, disassembly, and movement at any time during use, and has a gas cylinder limiting device inside, improving the stability of the device. However, in actual use, after the gas in the gas cylinders loaded inside is used, due to the relatively narrow internal space, when disassembling and assembling again after use, it is easy to cause bumps when personnel manually carry the gas cylinders or use a hoisting method for installation, affecting the safety of actual use. Therefore, it still needs to be improved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a corrosion-resistant and switchable pressure-reducing valve double-bottle manifold to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A corrosion-resistant and switchable pressure-reducing valve double-bottle manifold includes a mounting panel, a housing, a mounting plate, a high-pressure gas transmission pipeline, a support block, and a driving mechanism.

[0007] The top surface of the mounting panel is provided with a housing, and gas alarms are installed at both ends of the inner wall of the housing.

[0008] The rear end surface of the housing is provided with a box body.

[0009] A limiting frame is provided on the front end surface of the mounting plate, and a low-pressure gas pipeline is installed in the limiting frame;

[0010] A screw rod is provided on the output shaft of the driving mechanism;

[0011] A gas storage tank is placed on the top surface of the support block;

[0012] A valve is installed on the high-pressure gas transmission pipeline through a flange, and connecting pipes are provided at both ends of the high-pressure gas transmission pipeline;

[0013] The pressure reducing valve body is installed on the connecting pipe 1 through a flange;

[0014] A second valve is installed on the gas storage tank via a flange;

[0015] An air pump is installed on the rear end surface of the box body, and the air pump is in gas communication with the box body through an air extraction pipe.

[0016] Preferably, a connecting frame is welded to the rear end face of the mounting plate, and the bottom end face of the connecting frame is welded to the housing. The mounting plate can be fixed to the housing via the connecting frame.

[0017] Preferably, a support frame is welded to the bottom end surface of the installation panel, and a mounting base is welded to the bottom end surface of the support frame. The installation panel can be installed and supported by the support frame and the mounting base.

[0018] Preferably, a mounting block is mounted on the drive mechanism, and the top end surface of the mounting block is welded to the bottom end surface of the mounting panel. The drive mechanism can be mounted on the bottom end surface of the mounting panel via the mounting block.

[0019] Preferably, a guide frame is welded to the bottom end surface of the support block, the guide frame is sleeved in the mounting panel, and the guide frame is mounted on the screw rod via a thread. The guide frame is sleeved in the mounting panel to limit the position. When the guide frame is mounted on the screw rod via a thread, a person can activate the drive mechanism to drive the screw rod to rotate, and the guide frame and the support block can be driven to move forward and backward according to the rotation direction of the screw rod.

[0020] Preferably, a clamping frame is provided on the rear end face of the inner wall of the shell, and the clamping frame limits the position of the gas storage tank. The clamping frame cooperates with the support block to clamp and limit the gas storage tank.

[0021] Preferably, a connecting pipe 2 is mounted on the second valve via a flange, and the end of the connecting pipe 2 facing away from the second valve is mounted in the high-pressure gas pipeline, and the high-pressure gas pipeline is connected to the second valve via the connecting pipe 2. The end of the connecting pipe 2 facing away from the second valve is mounted in the high-pressure gas pipeline, so that a person can open the second valve to inject gas from the gas storage tank into the high-pressure gas pipeline through the connecting pipe 2.

[0022] Preferably, the end of the connecting pipe 1 facing away from the high-pressure gas pipeline is installed in the low-pressure gas pipeline, and the low-pressure gas pipeline is connected to the connecting pipe 1. Through the connection between the low-pressure gas pipeline and the connecting pipe 1, the gas entering the high-pressure gas pipeline passes through the opening of the valve 1, and is then decompressed by the pressure reducing valve body on the connecting pipe 1 and injected into the low-pressure gas pipeline.

[0023] Preferably, a screw is threadedly mounted on the limit frame, and a nut is threadedly mounted on the screw. With the nut threadedly mounted on the screw, after the limit frame clamps and limits the low-pressure gas pipeline, a person can rotate the nut to move it upward on the screw, so that the screw pulls the limit frame to tighten and limit the low-pressure gas pipeline.

[0024] Preferably, exhaust pipes are embedded and fixed at both ends of the box, and the end of the exhaust pipe facing away from the box is embedded and fixed in the shell. By embedding and fixing the end of the exhaust pipe facing away from the box in the shell, when the gas in the box is extracted, the box extracts the gas in the shell through the exhaust pipe.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The present invention incorporates a support block. When personnel need to decompress and supply air to a gas tank, if they are concerned that the installation space inside the housing is too limited, potentially hindering subsequent disassembly and maintenance, they can utilize a guide frame that fits within the mounting panel to achieve position control. Specifically, during the position control process, the guide frame is threadedly mounted on the screw. This allows personnel to simply activate the drive mechanism and rotate the screw, which in turn drives the guide frame and support block forward and backward according to the direction of the screw's rotation. This allows the support block to be deployed from within the housing, making it easy to install and remove the gas tank from the support block, effectively avoiding potential collisions caused by working directly within the housing's confined space. Furthermore, after the gas tank is mounted on the support block, the support block's movement, in conjunction with the clamping frame, allows the gas tank to be clamped and limited again, thereby better meeting the requirements of the gas tank's use and facilitating disassembly and maintenance.

[0027] 2. The present invention provides a high-pressure gas pipeline. When personnel need to use gas storage tanks, they can connect the dual gas storage tanks to the high-pressure gas pipeline using connecting pipe 2. Once connected, simply open the valve on valve 2 to begin gas supply. After the gas enters the high-pressure gas pipeline, since valve 1 is installed at both ends of the high-pressure gas pipeline, these valves can be opened individually to supply gas. This design effectively prevents the gas supply from being affected by damage to the pressure-reducing valve body on connecting pipe 1 at either end of the high-pressure gas pipeline. In this way, gas can be supplied separately from both ends of the high-pressure gas pipeline. Even if the pressure-reducing valve body at a single end is damaged or requires maintenance, gas can still be supplied normally from the other end. Subsequently, after the gas is reduced in pressure by the pressure-reducing valve body, it is injected into the low-pressure gas pipeline for transportation and use. In this way, a dual-bottle bus is successfully formed, providing convenience for practical use.

[0028] 3. The utility model sets up a box body to avoid leakage between pipes when people are using the gas tank. Inside the shell, the gas alarm will monitor gas leakage in real time. Once a leak is detected, the gas alarm will immediately sound an alarm. At this time, the staff can quickly turn on the air pump to extract the gas in the box body and discharge it to a safe area. During the discharge process, one end of the exhaust pipe is embedded and fixed inside the shell, and the other end is connected to the box body. In this way, when the gas in the box body is extracted, the box body will extract the gas in the shell body through the exhaust pipe. In this way, the gas in the shell body can be extracted, and then the leaked gas can be discharged, thereby eliminating the hidden dangers of leakage and ensuring the safety and reliability of the use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0030] Figure 2 This is a side structural diagram of the present utility model;

[0031] Figure 3 This is a rear view structural diagram of the utility model;

[0032] Figure 4 This is a schematic diagram of the top view of the mounting panel of the present invention;

[0033] Figure 5 This is a schematic diagram of the bottom-up structure of the installation panel of the present invention;

[0034] Figure 6 This is a side structural diagram of the limiting frame of the present utility model.

[0035] In the figure: 1, support frame; 2, mounting base; 3, mounting panel; 4, outer shell; 5, clamping frame; 6, mounting plate; 7, low-pressure gas transmission pipeline; 8, high-pressure gas transmission pipeline; 9, valve I; 10, connecting pipe I; 11, pressure reducing valve body; 12, connecting pipe II; 13, valve II; 14, gas alarm; 15, gas storage tank; 16, support block; 17, limiting frame; 18, connecting frame; 19, air extraction pipe; 20, exhaust pipe; 21, box body; 22, air pump; 23, screw; 24, driving mechanism; 25, guiding frame; 26, lead screw; 27, mounting block. Specific embodiments

[0036] 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.

[0037] Embodiment 1

[0038] As Figures 1 - 6 shown, a corrosion-resistant and switchable pressure reducing valve double-bottle manifold proposed by the present invention includes a mounting panel 3, an outer shell 4, a mounting plate 6, a high-pressure gas transmission pipeline 8, a support block 16 and a driving mechanism 24.

[0039] The top surface of the mounting panel 3 is provided with an outer shell 4, and gas alarms 14 are installed at both ends of the inner wall of the outer shell 4.

[0040] The rear end surface of the outer shell 4 is provided with a box body 21.

[0041] The front end surface of the mounting plate 6 is provided with a limiting frame 17, and a low-pressure gas transmission pipeline 7 is installed inside the limiting frame 17.

[0042] A lead screw 26 is provided on the output shaft of the driving mechanism 24.

[0043] A gas storage tank 15 is placed on the top surface of the support block 16.

[0044] A valve I 9 is installed on the high-pressure gas transmission pipeline 8 through a flange, and connecting pipes I 10 are provided at both ends of the high-pressure gas transmission pipeline 8.

[0045] A pressure reducing valve body 11 is installed on the connecting pipe I 10 through a flange.

[0046] A valve II 13 is installed on the gas storage tank 15 through a flange.

[0047] An air pump 22 is installed on the rear end surface of the box body 21, and the air pump 22 is in gas communication with the box body 21 through an air extraction pipe 19.

[0048] The rear end face of the mounting plate 6 is welded with a connecting frame 18, and the bottom end face of the connecting frame 18 is welded on the outer shell 4. The mounting plate 6 can be installed and fixed on the outer shell 4 through the connecting frame 18.

[0049] A clamping frame 5 is arranged on the rear end face of the inner wall of the outer shell 4, and the clamping frame 5 limits the gas storage tank 15. The gas storage tank 15 can be clamped and limited through the cooperation of the clamping frame 5 and the support block 16.

[0050] A screw rod 23 is installed on the limiting frame 17 through threads, and a nut is installed on the screw rod 23 through threads. By installing a nut on the screw rod 23 through threads, after the limiting frame 17 clamps and limits the low-pressure gas transmission pipeline 7, the operator can rotate the nut to spiral upward on the screw rod 23, so that the screw rod 23 pulls the limiting frame 17 to tightly limit the low-pressure gas transmission pipeline 7.

[0051] A mounting block 27 is installed on the driving mechanism 24, and the top end face of the mounting block 27 is welded to the bottom end face of the mounting panel 3. The driving mechanism 24 can be installed on the bottom end face of the mounting panel 3 through the mounting block 27.

[0052] A guiding frame 25 is welded to the bottom end face of the support block 16. The guiding frame 25 is sleeved in the mounting panel 3 and is installed on the lead screw 26 through threads. The guiding frame 25 is limited by being sleeved in the mounting panel 3. When limiting, the guiding frame 25 is installed on the lead screw 26 through threads, so that when the operator opens the driving mechanism 24 to drive the lead screw 26 to rotate, the guiding frame 25 and the support block 16 can be driven to move back and forth according to the rotation direction of the lead screw 26.

[0053] Based on Embodiment 1: When the operator decompresses and supplies gas to the gas storage tank 15, in order to avoid the narrow installation space inside the outer shell 4 affecting later disassembly, installation and maintenance, the guiding frame 25 is sleeved in the mounting panel 3 for limiting. When limiting, the guiding frame 25 is installed on the lead screw 26 through threads, so that when the operator opens the driving mechanism 24 to drive the lead screw 26 to rotate, the guiding frame 25 and the support block 16 can be driven to move back and forth according to the rotation direction of the lead screw 26, so that the support block 16 can be unfolded from inside the outer shell 4. After unfolding, it is convenient to install the gas storage tank 15 on the support block 16, and the gas storage tank 15 on the support block 16 can also be removed, avoiding bumps caused by directly operating in the narrow space of the outer shell 4. After installing the gas storage tank 15 on the support block 16, the gas storage tank 15 can be clamped and limited again through the movement of the support block 16 in cooperation with the clamping frame 5, so as to meet the use and disassembly, installation and maintenance of the gas storage tank 15.

[0054] Embodiment Two

[0055] Such as Figures 1 - 6As shown in the figure, a corrosion-resistant and switchable pressure reducing valve double-bottle manifold proposed by the present utility model, compared with Embodiment 1, this embodiment further includes: a mounting panel 3, a housing 4, a mounting plate 6, a high-pressure gas transmission pipeline 8, a support block 16, and a driving mechanism 24.

[0056] The top surface of the mounting panel 3 is provided with a housing 4, and gas alarms 14 are installed at both ends of the inner wall of the housing 4.

[0057] The rear end surface of the housing 4 is provided with a box body 21.

[0058] A limiting frame 17 is provided on the front end surface of the mounting plate 6, and a low-pressure gas transmission pipeline 7 is installed inside the limiting frame 17.

[0059] A lead screw 26 is provided on the output shaft of the driving mechanism 24.

[0060] A gas storage tank 15 is placed on the top surface of the support block 16.

[0061] A valve I 9 is installed on the high-pressure gas transmission pipeline 8 through a flange, and connecting pipes I 10 are provided at both ends of the high-pressure gas transmission pipeline 8.

[0062] A pressure reducing valve body 11 is installed on the connecting pipe I 10 through a flange. The pressure reducing valve body 11 can select materials such as stainless steel, alloy steel, and brass according to the working environment and medium characteristics for corrosion-resistant work, avoiding premature corrosion of the pressure reducing valve body 11 and affecting normal work.

[0063] A valve II 13 is installed on the gas storage tank 15 through a flange.

[0064] An air pump 22 is installed on the rear end surface of the box body 21, and the air pump 22 is in gas communication with the box body 21 through an air extraction pipe 19.

[0065] A connecting pipe II 12 is installed on the valve II 13 through a flange. The end of the connecting pipe II 12 away from the valve II 13 is installed inside the high-pressure gas transmission pipeline 8, and the high-pressure gas transmission pipeline 8 is connected to the valve II 13 through the connecting pipe II 12. By installing the end of the connecting pipe II 12 away from the valve II 13 inside the high-pressure gas transmission pipeline 8, personnel can open the valve II 13 to inject the gas in the gas storage tank 15 into the high-pressure gas transmission pipeline 8 through the connecting pipe II 12.

[0066] The end of the connecting pipe I 10 away from the high-pressure gas transmission pipeline 8 is installed inside the low-pressure gas transmission pipeline 7, and the low-pressure gas transmission pipeline 7 is in communication with the connecting pipe I 10. By being in communication with the connecting pipe I 10 through the low-pressure gas transmission pipeline 7, after the gas entering the high-pressure gas transmission pipeline 8 passes through the opened valve I 9, the gas is injected into the low-pressure gas transmission pipeline 7 after being decompressed by the pressure reducing valve body 11 on the connecting pipe I 10.

[0067] Based on Embodiment 2: When a person uses the gas storage tank 15, the person can connect the double-bottle gas storage tank 15 to the high-pressure gas transmission pipeline 8 through the second connecting pipe 12 respectively. After connection, the gas is supplied by opening the valve on the second valve 13. After the supplied gas enters the high-pressure gas transmission pipeline 8, the first valves 9 are installed at both ends of the high-pressure gas transmission pipeline 8 respectively, so that the first valves 9 can be opened separately for gas supply, avoiding the single damage of the pressure reducing valve body 11 on the first connecting pipes 10 at both ends of the high-pressure gas transmission pipeline 8 from affecting the gas supply, enabling the gas to be supplied through both ends of the high-pressure gas transmission pipeline 8 respectively, and normal gas supply can be carried out through the other end when the pressure reducing valve body 11 at a single end is damaged or needs maintenance. Thus, the gas is injected into the low-pressure gas transmission pipeline 7 for transportation and use after being decompressed by the pressure reducing valve body 11, and then a double-bottle manifold is formed for use.

[0068] Embodiment Three

[0069] As Figures 1 - 6 shown, a corrosion-resistant and switchable pressure reducing valve double-bottle manifold proposed by the present utility model further includes: a mounting panel 3, a housing 4, a mounting plate 6, a high-pressure gas transmission pipeline 8, a support block 16, and a driving mechanism 24 compared with Embodiment 2.

[0070] The top surface of the mounting panel 3 is provided with a housing 4, and gas alarms 14 are installed at both ends of the inner wall of the housing 4.

[0071] The rear end surface of the housing 4 is provided with a box body 21.

[0072] A limiting frame 17 is arranged on the front end surface of the mounting plate 6, and a low-pressure gas transmission pipeline 7 is installed in the limiting frame 17.

[0073] A lead screw 26 is arranged on the output shaft of the driving mechanism 24, and as is well known to those skilled in the art, the provision of the driving mechanism 24 and the gas alarm 14 is common, and they both belong to conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience. The driving mechanism 24 drives the lead screw 26 to rotate forward and backward.

[0074] The gas storage tank 15 is placed on the top surface of the support block 16.

[0075] The first valves 9 are installed on the high-pressure gas transmission pipeline 8 through flange plates, and the first connecting pipes 10 are arranged at both ends of the high-pressure gas transmission pipeline 8.

[0076] The pressure reducing valve body 11 is installed on the first connecting pipe 10 through a flange plate.

[0077] The second valve 13 is installed on the gas storage tank 15 through a flange plate.

[0078] An air pump 22 is installed on the rear end surface of the box body 21, and the air pump 22 is in gas communication with the box body 21 through an air extraction pipe 19.

[0079] Exhaust pipes 20 are embedded and fixed at both ends of the box body 21, and the end of the exhaust pipe 20 facing away from the box body 21 is embedded and fixed in the outer shell 4. By embedding and fixing the end of the exhaust pipe 20 facing away from the box body 21 in the outer shell 4, when the gas in the box body 21 is extracted, the box body 21 extracts the gas in the outer shell 4 through the exhaust pipe 20.

[0080] The bottom end surface of the installation panel 3 is welded with a support frame 1 , and the bottom end surface of the support frame 1 is welded with a mounting base 2 . The installation panel 3 can be installed and supported by the support frame 1 and the mounting base 2 .

[0081] Based on Example 3: When personnel use the gas storage tank 15, in order to avoid leakage between pipelines, the gas leakage can be monitored by the gas alarm 14 in the shell 4. When a leakage is detected, the gas alarm 14 alarms. When the alarm sounds, personnel can turn on the air pump 22 to extract the gas in the box 21 and discharge it to a safe area. During discharge, the end of the exhaust pipe 20 facing away from the box 21 is embedded and fixed in the shell 4. When the gas in the box 21 is extracted, the box 21 extracts the gas in the shell 4 through the exhaust pipe 20, thereby extracting the gas in the shell 4, and then the leaked gas can be discharged to avoid the hidden danger of leakage.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A corrosion-resistant switchable pressure reducing valve dual-bottle busbar, comprising a mounting panel (3), a housing (4), a mounting plate (6), a high-pressure gas pipeline (8), a support block (16), and a drive mechanism (24), characterized in that: The top surface of the mounting panel (3) is mounted with a housing (4), and both ends of the inner wall of the housing (4) are mounted with gas alarms (14); A box body (21) is installed on the rear end surface of the housing (4); A limiting frame (17) is provided on the front end surface of the mounting plate (6), and a low-pressure gas transmission pipeline (7) is installed in the limiting frame (17); A screw rod (26) is provided on the output shaft of the driving mechanism (24); A gas storage tank (15) is placed on the top surface of the support block (16); A valve (9) is installed on the high-pressure gas transmission pipeline (8) via a flange, and connecting pipes (10) are provided at both ends of the high-pressure gas transmission pipeline (8); The pressure reducing valve body (11) is mounted on the connecting pipe (10) via a flange; A second valve (13) is installed on the gas storage tank (15) via a flange; An air pump (22) is installed on the rear end surface of the box body (21), and the air pump (22) is in gas communication with the box body (21) through an air extraction pipe (19).

2. The corrosion-resistant switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: A connecting frame (18) is welded to the rear end face of the mounting plate (6), and the bottom end face of the connecting frame (18) is welded to the outer shell (4).

3. A corrosion-resistant switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: The bottom end surface of the installation panel (3) is welded with a support frame (1), and the bottom end surface of the support frame (1) is welded with a mounting base (2).

4. A corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: A mounting block (27) is mounted on the driving mechanism (24), and the top end surface of the mounting block (27) is welded to the bottom end surface of the mounting panel (3).

5. A corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: A guide frame (25) is welded to the bottom end surface of the support block (16), the guide frame (25) is sleeved in the mounting panel (3), and the guide frame (25) is mounted on the screw rod (26) through a thread.

6. The corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1 or 2, characterized in that: A clamping frame (5) is provided on the rear end surface of the inner wall of the shell (4), and the clamping frame (5) limits the position of the gas storage tank (15).

7. A corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: The second valve (13) is provided with a second connecting pipe (12) via a flange. The end of the second connecting pipe (12) facing away from the second valve (13) is installed in the high-pressure gas pipeline (8), and the high-pressure gas pipeline (8) is connected to the second valve (13) via the second connecting pipe (12).

8. A corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: The end of the connecting pipe (10) facing away from the high-pressure gas pipeline (8) is installed in the low-pressure gas pipeline (7), and the low-pressure gas pipeline (7) is connected to the connecting pipe (10).

9. A corrosion-resistant and switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: A screw rod (23) is threadedly mounted on the limiting frame (17), and a nut is threadedly mounted on the screw rod (23).

10. A corrosion-resistant switchable pressure reducing valve double-bottle manifold according to claim 1, characterized in that: Exhaust pipes (20) are embedded and fixed at both ends of the box body (21), and one end of the exhaust pipe (20) facing away from the box body (21) is embedded and fixed in the outer shell (4).

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