CN215448372U - Pressure maintaining and leakage detecting system - Google Patents
Pressure maintaining and leakage detecting system Download PDFInfo
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- CN215448372U CN215448372U CN202121943060.9U CN202121943060U CN215448372U CN 215448372 U CN215448372 U CN 215448372U CN 202121943060 U CN202121943060 U CN 202121943060U CN 215448372 U CN215448372 U CN 215448372U
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Abstract
The utility model provides a pressure maintaining and leakage detecting system which comprises a main control valve, a pressure maintaining air inlet pipe, a main gas input pipe, an emptying valve and a main leakage detecting assembly, wherein the main control valve is connected with the pressure maintaining air inlet pipe; the main control valve is arranged in the pressure maintaining air inlet pipe; the pressure maintaining air inlet pipe is connected with the main gas input pipe end to end; the emptying pipe is connected with the pressure maintaining output pipe and is provided with an emptying valve; the main leakage detection assembly comprises a main pressure maintaining output pipe, a main pressure maintaining valve, a main pressure gauge and a main pressure maintaining connecting pipe; the main pressure maintaining output pipe is connected with the output end of the main gas input pipe; the main pressure maintaining output pipe is provided with the main pressure maintaining valve; the main pressure gauge is arranged on the main pressure maintaining output pipe; the main pressure maintaining connecting pipe is arranged at the output end of the pressure maintaining output pipe; the utility model can quickly and conveniently detect the air tightness of the steel cylinder valve, has simple operation, accurate and effective detection and high efficiency, and effectively ensures the air tightness of the steel cylinder.
Description
Technical Field
The utility model relates to the technical field of pressure maintaining and leakage detecting of steel cylinders, in particular to a pressure maintaining and leakage detecting system.
Background
Electronic gases, gases used in the semiconductor industry, are collectively referred to as electronic gases. According to the category, the gas can be divided into three categories, namely pure gas, high-purity gas and semiconductor special material gas. Special material gas is mainly used for epitaxy, doping and etching processes; high purity gases are mainly used as dilution and carrier gases. Steel cylinders, i.e., steel cylinders that store high pressure oxygen, gas, liquefied petroleum gas, etc. Gas cylinders typically contain a permanent gas, a liquefied gas, or a mixture of gases.
Most of the existing electronic gases are stored and transported by steel cylinders, and have special requirements on the gases and certain requirements on the performance of gas cylinder valves, and if the inner and outer surfaces of the interfaces of the steel cylinder valves have defects, the valves can be slightly leaked, so that the subsequent gas utilization process is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model aims to provide a pressure maintaining and leakage detecting system which solves the problem that the air tightness of a steel cylinder valve cannot be detected in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a pressure maintaining and leakage detecting system comprises a main control valve, a pressure maintaining air inlet pipe, a gas main input pipe, an emptying valve and a main leakage detecting assembly;
the main control valve is arranged in the pressure maintaining air inlet pipe; the pressure maintaining air inlet pipe is connected with the main gas input pipe end to end; the emptying pipe is connected with the pressure maintaining output pipe and is provided with an emptying valve; the main leakage detection assembly comprises a main pressure maintaining output pipe, a main pressure maintaining valve, a main pressure gauge and a main pressure maintaining connecting pipe;
the main pressure maintaining output pipe is connected with the output end of the main gas input pipe; the main pressure maintaining output pipe is provided with the main pressure maintaining valve; the main pressure gauge is arranged on the main pressure maintaining output pipe; the main pressure maintaining connecting pipe is arranged at the output end of the pressure maintaining output pipe.
Preferably, the leakage detection device also comprises a secondary leakage detection mechanism; the secondary leakage detection mechanism and the main leakage detection assembly are connected in parallel to the main gas input pipe;
the secondary leakage detection mechanism comprises a gas auxiliary input pipe and a plurality of auxiliary leakage detection assemblies;
the gas auxiliary input pipe is connected with the output end of the gas main input pipe; and the auxiliary leakage detection assemblies are connected in parallel to the auxiliary gas input pipe.
Preferably, the auxiliary leakage detection assembly comprises an auxiliary pressure-maintaining output pipe, an auxiliary pressure-maintaining valve, an auxiliary pressure gauge and an auxiliary pressure-maintaining connecting pipe;
the auxiliary pressure-maintaining output pipe is connected with the output end of the main gas input pipe; the auxiliary pressure maintaining output pipe is provided with the auxiliary pressure maintaining valve; the auxiliary pressure gauge is arranged on the auxiliary pressure-maintaining output pipe; the auxiliary pressure maintaining connecting pipe is arranged at the output end of the pressure maintaining output pipe.
Preferably, the main pressure maintaining connecting pipe and the auxiliary pressure maintaining connecting pipe are both coil pipes which can freely stretch out and draw back.
Preferably, the auxiliary leakage detection assemblies are arranged on the gas auxiliary input pipe, and the intervals between the auxiliary leakage detection assemblies are consistent.
Preferably, the auxiliary leakage detection assembly is provided with three groups, wherein one group of the auxiliary leakage detection assembly is arranged at the tail end output end of the auxiliary gas input pipe, and the other two groups of the auxiliary leakage detection assembly are arranged in the middle of the auxiliary gas input pipe.
One of the above technical solutions has the following advantages or beneficial effects:
the main control valve can quickly cut off the input of helium when the system is prevented from accidentally leaking, so that the safety of the system is ensured; the safety of dismantlement is effectively guaranteed to the blow-down pipe, avoids high-pressure gas to cause the accident to the work of dismantling, can be fast convenient carry out the measuring of gas tightness to the steel bottle valve through this pressurize system of leaking hunting, easy operation detects accurate effective and efficient, effectively guarantees the gas tightness of steel bottle.
Drawings
FIG. 1 is a schematic diagram of the structural connections of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the connection of a secondary leak detection mechanism according to one embodiment of the present invention;
fig. 3 is a schematic structural connection diagram of another embodiment of the present invention.
Wherein: the device comprises a main control valve 1, a pressure maintaining air inlet pipe 2, a main gas input pipe 3, an emptying pipe 4, an emptying valve 5, a main leakage detection assembly 6, a main pressure maintaining output pipe 61, a main pressure maintaining valve 62, a main pressure gauge 63, a main pressure maintaining connecting pipe 64, a secondary leakage detection mechanism 7, an auxiliary gas input pipe 71, an auxiliary leakage detection assembly 8, an auxiliary pressure maintaining output pipe 81, an auxiliary pressure maintaining valve 82, an auxiliary pressure gauge 83 and an auxiliary pressure maintaining connecting pipe 84.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The pressure maintaining and leakage detecting system according to the embodiment of the present invention is described below with reference to fig. 1 to 3, and includes a main control valve 1, a pressure maintaining air inlet pipe 2, a main gas input pipe 3, an emptying pipe 4, an emptying valve 5, and a main leakage detecting assembly 6;
the main control valve 1 is arranged in the pressure maintaining air inlet pipe 2;
the pressure maintaining air inlet pipe 2 is connected with the main gas input pipe 3 end to end;
the emptying pipe 4 is connected with the pressure maintaining output pipe, and the emptying pipe 4 is provided with an emptying valve 5;
the main leakage detection assembly 6 comprises a main pressure maintaining output pipe 61, a main pressure maintaining valve 62, a main pressure gauge 63 and a main pressure maintaining connecting pipe 64;
the main pressure maintaining output pipe 61 is connected with the output end of the main gas input pipe 3; the main pressure maintaining output pipe 61 is provided with the main pressure maintaining valve 62; the main pressure gauge 63 is arranged on the main pressure maintaining output pipe 61; the main pressure maintaining connection pipe 64 is disposed at an output end of the pressure maintaining output pipe.
Specifically, in the work, after the gas storage steel cylinder finishes gas filling, the pressure-maintaining and leakage-detecting system of the application is utilized to test the gas tightness of the steel cylinder, the steel cylinder filled with gas is installed on a main pressure-maintaining connecting pipe 64, a main control valve 1 is opened, external helium enters into a gas input pipe from a pressure-maintaining gas inlet pipe 2, the helium is output through a main pressure-maintaining output pipe 61, a main pressure-maintaining valve 62 is opened, the helium is connected with a valve of the steel cylinder through the main pressure-maintaining connecting pipe 64, the valve of the steel cylinder is in a closed state, the helium passes through a main pressure gauge 63 at the moment, the pressure in the main pressure-maintaining output pipe 61 can be measured through the main pressure gauge 63, after the helium with certain pressure (which can be 300psig or more) is filled, the reading of the main pressure gauge 63 is recorded after the reading of the main pressure gauge 63 is stable, the reading of the main pressure gauge 63 is recorded again after the pressure-maintaining is not less than half hour, comparing the readings of the main pressure gauge 63 before and after twice, wherein the pressure difference is less than or equal to 5psig, which indicates that the air tightness of the steel cylinder valve meets the requirement, and if the pressure difference is more than 5psig, the air tightness of the steel cylinder valve does not meet the requirement; after the test is finished, opening an emptying valve 5, emptying the pressure maintaining gas and then disassembling the steel cylinder; the main control valve 1 controls the input and stop of helium, so that the input of helium can be quickly cut off when the system is accidentally leaked, and the safety of the system is ensured; the steel cylinder is disassembled after the pressure maintaining helium is discharged through the discharge pipe 4, so that the disassembling safety is effectively ensured, and the disassembling personnel are prevented from being injured due to the accident of high-pressure gas to the disassembling work; through this pressurize system of leaking hunting can be fast convenient carry out the measuring of gas tightness to the steel bottle valve, easy operation detects accurate effective and efficient, effectively guarantees the gas tightness of steel bottle.
Further, a secondary leakage detection mechanism 7 is also included; the secondary leakage detection mechanism 7 and the main leakage detection assembly 6 are connected in parallel to the main gas input pipe 3; the secondary leakage detection mechanism 7 comprises a gas auxiliary input pipe 71 and a plurality of auxiliary leakage detection assemblies 8; the gas auxiliary input pipe 71 is connected with the output end of the gas main input pipe 3; a plurality of the secondary leak detection assemblies 8 are connected in parallel to the secondary gas input pipe 71.
Specifically, this embodiment is provided with secondary leak hunting mechanism 7, and the helium gets into gaseous vice input tube 71 through gaseous main input tube 3 to from a plurality of vice subassembly 8 outputs that leak hunting, the staff can install a plurality of steel bottles respectively on main subassembly 6 and vice subassembly 8 that leak hunting simultaneously, can realize that a plurality of steel bottles carry out the gas tightness simultaneously and detect, effectively improve work efficiency.
In addition, in one embodiment, a pressure relief pipe is connected to the main gas input pipe 3, a pressure relief valve is arranged on the pressure relief pipe, the pressure relief valve sets a certain pressure relief threshold, when the pressure of the main gas input pipe is too high, a valve of the pressure relief valve is opened, and helium gas is discharged outwards through the pressure relief pipe, so that the gas pressure of the main gas input pipe 3 is reduced, the main gas input pipe 3 is prevented from being broken due to too high gas pressure, and the main gas input pipe 3 is protected.
Further, the auxiliary leakage detection assembly 8 comprises an auxiliary pressure maintaining output pipe 81, an auxiliary pressure maintaining valve 82, an auxiliary pressure gauge 83 and an auxiliary pressure maintaining connection pipe 84;
the auxiliary pressure maintaining output pipe 81 is connected with the output end of the gas main input pipe 3; the auxiliary pressure maintaining output pipe 81 is provided with the auxiliary pressure maintaining valve 82; the auxiliary pressure gauge 83 is arranged on the auxiliary pressure maintaining output pipe 81; the auxiliary pressure-maintaining connecting pipe 84 is arranged at the output end of the pressure-maintaining output pipe.
During the specific work of the auxiliary leakage detection assembly 8, helium in the gas auxiliary input pipe 71 respectively enters the auxiliary pressure maintaining output pipes 81 of the auxiliary leakage detection assemblies 8, when the group of auxiliary leakage detection assemblies 8 are required to perform gas tightness detection, the steel cylinder is connected with the auxiliary pressure maintaining connecting pipe 84 of the group, then the reorganized auxiliary pressure maintaining valve 82 is opened, the helium is filled stably, the reading of the auxiliary pressure gauge 83 is read, then the auxiliary pressure maintaining valve 82 is closed, the reading of the auxiliary pressure gauge 83 is read again after the pressure maintaining is performed for a period of time, the gas tightness of the steel cylinder can be measured by comparing the two readings, the operation is simple, the detection is accurate and effective, the efficiency is high, and the gas tightness of the steel cylinder is effectively ensured.
Further, the main pressure maintaining connection pipe 64 and the auxiliary pressure maintaining connection pipe 84 are both coil pipes that can be freely extended and retracted. Specifically, in this embodiment, main pressurize connecting pipe 64 and vice pressurize connecting pipe 84 are the coil pipe that can freely stretch out and draw back, and the coil pipe adopts hard coil pipe, not only can guarantee the gas tightness of this system helium transportation, can stretch according to the height and the space size of different steel bottles moreover, makes things convenient for main pressurize connecting pipe 64 and vice pressurize connecting pipe 84 to be connected with the steel bottle, and the adaptability is high, and simple to operate is swift.
Further, the auxiliary leakage detection assemblies 8 are arranged on the gas auxiliary input pipe 71, and the intervals between the auxiliary leakage detection assemblies 8 are consistent. Specifically, in this embodiment, a plurality of pairs of leak hunting subassemblies 8 are arranged apart from certain distance for the steel bottle also can be separated from certain distance after the installation, not only in good order, guarantee to leave sufficient space between the steel bottle moreover, make things convenient for the staff to install and dismantle work, avoid the collision between the steel bottle, guarantee safety.
Further, the auxiliary leakage detection assemblies 8 are provided with three groups, wherein one group of the auxiliary leakage detection assemblies 8 is arranged at the tail end output end of the gas auxiliary input pipe 71, and the other two groups of the auxiliary leakage detection assemblies 8 are arranged in the middle of the gas auxiliary input pipe 71. Specifically, the auxiliary leakage detection assemblies 8 are provided with three groups in the embodiment, the main leakage detection assemblies 6 are four groups in total, the input end of the auxiliary gas input pipe 71 is connected with the main gas input pipe 3, the output end of the auxiliary gas input pipe 71 is connected with one group of auxiliary leakage detection assemblies 8, the length of the auxiliary gas input pipe 71 is effectively utilized, the airtightness of four steel cylinders can be detected simultaneously, and the working efficiency is effectively improved.
Other configurations and operations of a pressure-holding leak detection system according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a pressurize system of leaking hunting which characterized in that: the device comprises a main control valve, a pressure maintaining air inlet pipe, a main gas input pipe, an emptying valve and a main leakage detection assembly;
the main control valve is arranged in the pressure maintaining air inlet pipe;
the pressure maintaining air inlet pipe is connected with the main gas input pipe end to end;
the emptying pipe is connected with the pressure maintaining output pipe and is provided with an emptying valve;
the main leakage detection assembly comprises a main pressure maintaining output pipe, a main pressure maintaining valve, a main pressure gauge and a main pressure maintaining connecting pipe;
the main pressure maintaining output pipe is connected with the output end of the main gas input pipe; the main pressure maintaining output pipe is provided with the main pressure maintaining valve; the main pressure gauge is arranged on the main pressure maintaining output pipe; the main pressure maintaining connecting pipe is arranged at the output end of the pressure maintaining output pipe.
2. The pressure maintaining and leak hunting system according to claim 1, wherein: the device also comprises a secondary leakage detection mechanism; the secondary leakage detection mechanism and the main leakage detection assembly are connected in parallel to the main gas input pipe;
the secondary leakage detection mechanism comprises a gas auxiliary input pipe and a plurality of auxiliary leakage detection assemblies;
the gas auxiliary input pipe is connected with the output end of the gas main input pipe; and the auxiliary leakage detection assemblies are connected in parallel to the auxiliary gas input pipe.
3. The pressure maintaining and leak hunting system according to claim 2, wherein: the auxiliary leakage detection assembly comprises an auxiliary pressure-maintaining output pipe, an auxiliary pressure-maintaining valve, an auxiliary pressure gauge and an auxiliary pressure-maintaining connecting pipe;
the auxiliary pressure-maintaining output pipe is connected with the output end of the main gas input pipe; the auxiliary pressure maintaining output pipe is provided with the auxiliary pressure maintaining valve; the auxiliary pressure gauge is arranged on the auxiliary pressure-maintaining output pipe; the auxiliary pressure maintaining connecting pipe is arranged at the output end of the pressure maintaining output pipe.
4. The pressure maintaining and leak hunting system according to claim 3, wherein: the main pressure maintaining connecting pipe and the auxiliary pressure maintaining connecting pipe are coil pipes which can freely stretch out and draw back.
5. The pressure maintaining and leak hunting system according to claim 2, wherein: the auxiliary leakage detection assemblies are arranged on the gas auxiliary input pipe, and the intervals between the auxiliary leakage detection assemblies are consistent.
6. The pressure maintaining and leak hunting system according to claim 5, wherein: the auxiliary leakage detection assembly is provided with three groups, wherein one group of the auxiliary leakage detection assembly is arranged at the tail end output end of the gas auxiliary input pipe, and the other two groups of the auxiliary leakage detection assembly are arranged in the middle of the gas auxiliary input pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943060.9U CN215448372U (en) | 2021-08-18 | 2021-08-18 | Pressure maintaining and leakage detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943060.9U CN215448372U (en) | 2021-08-18 | 2021-08-18 | Pressure maintaining and leakage detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN215448372U true CN215448372U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121943060.9U Active CN215448372U (en) | 2021-08-18 | 2021-08-18 | Pressure maintaining and leakage detecting system |
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| CN (1) | CN215448372U (en) |
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2021
- 2021-08-18 CN CN202121943060.9U patent/CN215448372U/en active Active
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