Secondary valve box

Abstract

The utility model relates to a secondary valve box which comprises a valve box body, a main air supply pipe penetrates through the top of the valve box body, a main control valve and a first pressure gauge are arranged on the main air supply pipe, a standby air supply pipe is branched on the main air supply pipe and located on the inner side of the valve box body, and the other end of the main air supply pipe extends into the valve box body to be communicated with a branch pipe. A bypass pipe is arranged at the end, away from the main gas supply pipe, of the standby gas supply pipe, the standby gas supply pipe communicates with the gas output pipe through the bypass pipe, and a bypass control valve is arranged on the bypass pipe. According to the secondary valve box, by arranging a double safety mechanism of the main gas supply pipe and the standby gas supply pipe, gas supply interruption caused by a single pipeline fault is avoided, the continuity and stability of gas supply are guaranteed, the safety and reliability of a system are improved, stable gas supply in a medical environment is guaranteed, and the service life of the medical environment is prolonged. The treatment effect and life safety of patients are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply systems, in particular to a two-stage valve box. Background Art

[0002] Medical gas supply is the process of providing a variety of gases in the medical industry (called: medical gas life support system in the medical industry). It is widely used in hospitals, operating rooms, laboratories and other medical facilities to ensure the normal operation of various equipment and the safety of patients. In the medical gas supply system, the gas secondary valve box is a key device used to control, monitor and regulate gas flow and pressure. It is usually installed at a key position in the gas pipeline.

[0003] Safety is a crucial consideration in the design and implementation of medical gas supply systems. Traditional gas supply systems typically rely on a single gas supply pipeline to directly deliver gas to various points of use. However, over long-term use, such systems may face the risk of equipment aging or failure. Once the main gas supply line is interrupted, the gas supply will suddenly stop, which is unacceptable in a medical environment because any interruption of gas supply may directly affect the patient's treatment effect and even life safety. Therefore, a two-stage valve box bypass gas supply is proposed to solve the above problem. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a two-stage valve box, which can quickly switch to the backup gas supply line when the main gas supply line fails to ensure uninterrupted gas supply, solving the problem that traditional gas supply systems usually rely on a single gas supply pipeline to directly transport gas to various usage points. However, during long-term use, such systems may face the risk of equipment aging or failure. Once the main gas supply line is interrupted, the gas supply will suddenly stop, which is an unacceptable problem in a medical environment.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a two-stage valve box, comprising a valve box body, a main air supply pipe passing through the top of the valve box body, and a main control valve and a first pressure gauge provided on the main air supply pipe, a backup air supply pipe branching off from the main air supply pipe on the inner side of the valve box body, and the other end of the main air supply pipe extending into the interior of the valve box body and communicating with a branch pipe, and a bypass pipe provided on the end of the backup air supply pipe away from the main air supply pipe;

[0008] The two ends of the branch pipe are respectively connected to the first gas supply pipeline and the second gas supply pipeline, and the other ends of the first gas supply pipeline and the second gas supply pipeline are commonly connected to a gas output pipe;

[0009] The backup gas supply pipe and the gas output pipe are connected through a bypass pipe, and a bypass control valve is provided on the bypass pipe.

[0010] Preferably, the backup air supply pipe is connected to the main air supply pipe at a top end away from the bypass pipe, and a first backup control valve and a safety valve are provided at one end of the backup air supply pipe close to the main air supply pipe.

[0011] Preferably, a second backup control valve and a backup pressure reducer are installed on a section of the backup air supply pipe close to the bypass pipe, and a section of the backup air supply pipe extending outside the valve box is connected to an external backup air source.

[0012] Preferably, the first air supply pipeline and the second air supply pipeline have the same structure and are symmetrically arranged in the valve box. Pipeline control valves are installed at both ends of the second air supply pipeline, and a main pressure reducer is provided on the second air supply pipeline between the two pipeline control valves.

[0013] Preferably, the first pressure gauge is located in the valve box, and the connection between the backup air supply pipe and the main air supply pipe is located between the main control valve and the first pressure gauge.

[0014] Preferably, a gas output control valve and a second pressure gauge are installed on an outer section of the gas output pipe, and a flow meter is installed between the gas output control valve and the second pressure gauge.

[0015] (3) Beneficial effects

[0016] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0017] This secondary valve box avoids gas supply interruption caused by a single pipeline failure by setting up a dual insurance mechanism of the main gas supply pipe and the backup gas supply pipe. The main gas supply pipe is equipped with a main control valve and a first pressure gauge, and branches out a backup gas supply pipe, which is connected to the gas output pipe through a bypass pipe. The backup gas supply pipe is equipped with a first backup control valve, a safety valve, a second backup control valve and a backup pressure reducer, which can adjust the pressure and flow of the backup gas source to the required level. This design ensures the continuity and stability of the gas supply, improves the safety and reliability of the system, ensures stable gas supply in the medical environment, and protects the treatment effect and life safety of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the secondary valve box;

[0019] Figure 2 This is a schematic diagram of the principle of the secondary valve box.

[0020] In the figure: 1. Valve box; 2. Main air supply pipe; 21. Main control valve; 22. First pressure gauge; 3. Spare air supply pipe; 31. First spare control valve; 32. Second spare control valve; 33. Spare pressure reducer; 34. Spare air source; 35. Safety valve; 4. First air supply pipeline; 5. Second air supply pipeline; 51. Pipeline control valve; 52. Main pressure reducer; 6. Gas output pipe; 61. Gas output control valve; 62. Second pressure gauge; 63. Flow meter; 7. Branch pipe; 8. Bypass pipe; 81. Bypass control valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-2 The secondary valve box in this embodiment includes a valve box body 1. A main air supply pipe 2 is passed through the top of the valve box body 1. A main control valve 21 and a first pressure gauge 22 are provided on the main air supply pipe 2. A backup air supply pipe 3 is branched from the main air supply pipe 2 on the inner side of the valve box body 1. The other end of the main air supply pipe 2 extends into the interior of the valve box body 1 and is connected to a branch pipe 7. A bypass pipe 8 is provided on the end of the backup air supply pipe 3 away from the main air supply pipe 2.

[0023] The two ends of the branch pipe 7 are respectively connected to the first gas supply pipe 4 and the second gas supply pipe 5, and the other ends of the first gas supply pipe 4 and the second gas supply pipe 5 are commonly connected to the gas output pipe 6;

[0024] The backup gas supply pipe 3 and the gas output pipe 6 are connected via a bypass pipe 8 , and a bypass control valve 81 is provided on the bypass pipe 8 .

[0025] Specifically, the first air supply pipeline 4 and the second air supply pipeline 5 have the same structure and are symmetrically arranged in the valve box 1, which means that a main pressure reducer 52 is also provided on the first air supply pipeline 4. It should be noted that during normal air supply, only one path needs to be opened, that is, if the first air supply pipeline 4 is opened, the second air supply pipeline 5 is in a closed state, and if the second air supply pipeline 5 is opened, the first air supply pipeline 4 is in a closed state.

[0026] Specifically, the gas transported by the main gas supply pipe 2 is transported to the gas output pipe 6 through the branch pipe 7, the first gas supply pipe 4 or the second gas supply pipe 5, and then transported for use by the gas output pipe 6. It should be added that the main control valve 21, the first backup control valve 31, the safety valve 35 (for releasing overpressure gas in the pipeline), the pipeline control valve 51 and the gas output control valve 61 in this design all adopt existing conventional gas control valves.

[0027] Specifically, a gas output control valve 61 and a second pressure gauge 62 are installed on the outer section of the gas output pipe 6, and a flow meter 63 is installed between the gas output control valve 61 and the second pressure gauge 62. The gas output control valve 61 is used to control the switch and flow rate of gas output from the secondary valve box to the use point to ensure that the gas supply meets the demand; the second pressure gauge 62 is used to display the gas pressure in the gas output pipe 6 to help monitor whether the gas is within a safe working pressure range to ensure the normal operation of the system; the flow meter 63 is used to measure and display the gas flow through the gas output pipe 6, which is very important for accurately controlling the gas supply, especially in a medical environment. Different medical procedures may require different flow rates of gas, so accurate measurement of the flow is crucial.

[0028] To sum up, the secondary valve box avoids gas supply interruption caused by a single pipeline failure by setting up a double insurance mechanism of the main gas supply pipe 2 and the backup gas supply pipe 3. The main gas supply pipe 2 is equipped with a main control valve 21 and a first pressure gauge 22, and branches out a backup gas supply pipe 3, which is connected to the gas output pipe 6 through a bypass pipe 8. The backup gas supply pipe 3 is equipped with a first backup control valve 31, a safety valve 35, a second backup control valve 32 and a backup pressure reducer 33, which can adjust the pressure of the backup gas source 34 to the required level. This design ensures the continuity and stability of the gas supply, improves the safety and reliability of the system, ensures stable gas supply in the medical environment, protects the patient's treatment effect and life safety, and solves the problem that traditional gas supply systems usually rely on a single gas supply pipeline to directly transport gas to various use points. However, during long-term use, such systems may face the risk of equipment aging or failure. Once the main gas supply line is interrupted, the gas supply will suddenly stop, which is an unacceptable problem in the medical environment.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A secondary valve box, comprising a valve box body (1), characterized in that: A main air supply pipe (2) passes through the top of the valve housing (1), and a main control valve (21) and a first pressure gauge (22) are provided on the main air supply pipe (2). A backup air supply pipe (3) is branched from the main air supply pipe (2) on the inner side of the valve housing (1), and the other end of the main air supply pipe (2) extends to the interior of the valve housing (1) and is connected to a branch pipe (7). A bypass pipe (8) is provided at one end of the backup air supply pipe (3) away from the main air supply pipe (2); The two ends of the branch pipe (7) are respectively connected to the first gas supply pipeline (4) and the second gas supply pipeline (5), and the other ends of the first gas supply pipeline (4) and the second gas supply pipeline (5) are commonly connected to a gas output pipe (6); The standby gas supply pipe (3) and the gas output pipe (6) are connected via a bypass pipe (8), and a bypass control valve (81) is provided on the bypass pipe (8).

2. The secondary valve box according to claim 1, characterized in that: The top end of the backup air supply pipe (3) away from the bypass pipe (8) is connected to the main air supply pipe (2), and a first backup control valve (31) and a safety valve (35) are provided at one end of the backup air supply pipe (3) close to the main air supply pipe (2).

3. The secondary valve box according to claim 1, characterized in that: A second backup control valve (32) and a backup pressure reducer (33) are installed on a section of the backup air supply pipe (3) close to the bypass pipe (8), and a backup air source (34) is connected to a section of the backup air supply pipe (3) extending outside the valve box (1).

4. The secondary valve box according to claim 1, characterized in that: The first air supply pipeline (4) and the second air supply pipeline (5) have the same structure and are symmetrically arranged in the valve box (1). Both ends of the second air supply pipeline (5) are installed with pipeline control valves (51), and a main pressure reducer (52) is provided on the second air supply pipeline (5) between the two pipeline control valves (51).

5. The secondary valve box according to claim 1, characterized in that: The first pressure gauge (22) is located in the valve housing (1), and the connection between the backup air supply pipe (3) and the main air supply pipe (2) is located between the main control valve (21) and the first pressure gauge (22).

6. The secondary valve box according to claim 1, characterized in that: A gas output control valve (61) and a second pressure gauge (62) are installed on an outer section of the gas output pipe (6), and a flow meter (63) is installed between the gas output control valve (61) and the second pressure gauge (62).

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