Gas detecting and filling equipment

Abstract

The utility model discloses gas detection filling equipment, relates to the technical field of gas filling, and aims to solve the problem that the internal pressure of to-be-detected equipment is unstable when mixed gas is injected into the to-be-detected equipment. The gas detection and filling equipment comprises a first tank body and a filling device, wherein the first tank body is used for storing detection gas; the filling device comprises a gas filling assembly, a main gas filling pipeline, a first filling pipeline, a second filling pipeline and a second valve; the gas filling assembly is used for filling the to-be-detected equipment with detection gas; one end of the main inflation pipeline is connected to an outlet of the first tank body; one end of the first filling pipeline is communicated with the other end of the main inflation pipeline, and the other end of the first filling pipeline is communicated with the inflation assembly; the first filling pipeline is provided with a first pressure reducing valve; one end of the second filling pipeline is communicated with the other end of the main inflation pipeline, and the other end of the second filling pipeline is communicated with the inflation assembly; the second valve is arranged on the second filling pipeline and used for opening or blocking the second filling pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filling, in particular to a gas detection and filling device. Background Art

[0002] Equipment with confined spaces such as pipes or cavities, such as heat exchangers and compressors, often require leak testing to ensure the tightness of the equipment. This test typically involves injecting a mixture of helium and nitrogen into the confined space of the equipment using a filling device.

[0003] In the prior art, the mixed gas is compressed and stored in a tank body, and the pressure inside the tank body is relatively high. The filling device usually fills the mixed gas in the tank body into the device to be tested through a filling pipe.

[0004] Therefore, due to the high pressure inside the tank, when the mixed gas is injected into the device to be tested, the internal pressure of the device to be tested will become unstable, and the pressure inside the device to be tested will suddenly increase or decrease, causing damage to the device to be tested. Utility Model Content

[0005] The embodiment of the utility model provides a gas detection filling device, which solves the problem that when a mixed gas is injected into the device to be detected, the internal pressure of the device to be detected will be unstable, and the pressure inside the device to be detected will suddenly increase or decrease, causing damage to the device to be detected.

[0006] To achieve the above-mentioned purpose, the embodiment of the present utility model adopts the following technical scheme: a gas detection and filling device is provided, comprising: a first tank body and a filling device, the first tank body is used to store detection gas; the filling device comprises: a filling assembly, a main filling pipe, a first filling pipeline, a second filling pipeline and a second valve, the filling assembly is used to fill the detection gas into the equipment to be detected; one end of the main filling pipeline is connected to the outlet of the first tank body; one end of the first filling pipeline is connected to the other end of the main filling pipeline, and the other end of the first filling pipeline is connected to the filling assembly; the first filling pipeline is provided with a first pressure reducing valve; one end of the second filling pipeline is connected to the other end of the main filling pipeline, and the other end of the second filling pipeline is connected to the filling assembly; the second valve is provided on the second filling pipeline, for conducting or blocking the second filling pipeline.

[0007] The present application uses a filling device to fill the detection gas in the first tank into the device to be tested. During the filling process of the device to be tested, the filling assembly is first connected to the device to be tested, and the second valve is closed. At this time, the second valve blocks the second filling pipeline. The detection gas in the first tank passes through the main filling pipeline and then enters the filling assembly along the first filling pipeline connected to the main filling pipeline. The filling assembly then injects the detection gas into the device to be tested. During this process, since the first filling pipeline is provided with a first pressure reducing valve, the first pressure reducing valve can reduce the pressure in the first filling pipeline. Therefore, the pressure of the detection gas filled into the device to be tested through the first filling pipeline is relatively low.

[0008] Subsequently, the second valve is opened to connect the second filling line. At this point, the test gas in the first tank is filled into the device to be tested through the second filling line. Because the second filling line is not equipped with a pressure reducing device, the pressure of the test gas filled into the device to be tested through the second filling line is higher than the pressure of the test gas filled into the device to be tested through the first filling line.

[0009] Therefore, by first filling the detection gas into the equipment to be tested through the first filling pipeline and then filling the detection gas into the equipment to be tested through the second filling pipeline, the pressure of the detection gas passed into the equipment to be tested can be gradually increased to avoid the pressure of the detection gas passed into the equipment to be tested being too high, resulting in unstable internal pressure of the equipment to be tested, causing damage to the equipment to be tested or inaccurate test results.

[0010] In some embodiments of the present application, the filling device further includes: a first valve, which is provided in the first filling pipeline and is used to open or block the first filling pipeline.

[0011] In this way, when filling the device to be tested with test gas through the second filling line, the first valve can be closed to block the first filling line. This prevents the first filling line from dividing the pressure of the second filling line, thereby ensuring the pressure of the test gas in the second filling line, allowing the pressure in the device to be tested to quickly reach the required pressure, and improving filling efficiency.

[0012] When filling the device to be tested, first, the inflation component is connected to the device to be tested, and the first valve is opened and the second valve is closed, so that the first valve conducts the first filling pipeline and the second valve blocks the second filling pipeline. After the detection gas in the first tank passes through the main inflation pipeline, it enters the inflation component along the first filling pipeline connected to the main inflation pipeline, and the inflation component injects the detection gas into the device to be tested. Subsequently, the first valve is closed and the second valve is opened, so that the first valve blocks the first filling pipeline and the second valve conducts the second filling pipeline. The detection gas in the first tank is filled into the device to be tested through the second filling pipeline. After the filling is completed, the first valve is opened and the second valve is closed, so that the first valve blocks the first filling pipeline and the second valve blocks the second filling pipeline. Thus, not only can the efficiency of the filling device in filling the device to be tested with detection gas be controlled by controlling the opening and closing of the first valve and the second valve, but also leakage of the detection gas in the first tank can be avoided after the filling is completed.

[0013] In some embodiments of the present application, the first pressure reducing valve is provided between the main inflation pipe and the first valve.

[0014] In this way, the first pressure reducing valve is arranged between the main inflation pipe and the first valve. When the detection gas in the first tank flows to the first valve, it will first be reduced in pressure through the first pressure reducing valve, thereby reducing the pressure of the detection gas passing through the first valve, avoiding excessive pressure of the detection gas and causing a greater impact on the first valve, thereby avoiding damage to the first valve.

[0015] In some embodiments of the present application, the inflation assembly includes: a connecting pipeline and a filling gun, the other end of the first filling pipeline and the other end of the second filling pipeline are both connected to the connecting pipeline; the filling gun is connected to the connecting pipeline, and the filling gun is used to fill the detection gas into the equipment to be tested.

[0016] In this way, the first filling pipeline and the second filling pipeline are both connected to the inlet of the connecting pipeline; the filling gun is connected to the outlet of the connecting pipeline, and the connecting pipeline can realize the interconnection of multiple pipelines. When it is necessary to connect the first filling pipeline, the second filling pipeline or the filling gun to other pipelines, it is only necessary to open the corresponding opening on the connecting pipeline, and there is no need to redesign the pipeline to connect the first filling pipeline, the second filling pipeline or the filling gun to other pipelines.

[0017] When the positions of the first filling pipeline, the second filling pipeline or the filling gun are changed, it is only necessary to open corresponding openings at different positions on the connecting pipeline without redesigning the pipeline to connect the first filling pipeline, the second filling pipeline and the filling gun.

[0018] In some embodiments of the present application, the gas detection and filling equipment also includes a second tank body; the filling device also includes: a first recovery pipeline and a first recovery valve, one end of the first recovery pipeline is connected to the connecting pipeline, and the other end of the first recovery pipeline is connected to the inlet of the second tank body; the first recovery valve is arranged on the first recovery pipeline, and the first recovery valve is used to open or block the first recovery pipeline.

[0019] In this way, when the gas detection filling device has completed filling the device to be detected with the detection gas, the first recovery valve can be opened to allow the first recovery valve to connect the first recovery pipeline. At this time, the detection gas in the device to be detected can be recovered to the second tank through the first recovery pipeline. After the detection gas is recovered, the first recovery valve is closed to allow the first recovery valve to block the first recovery pipeline. In this way, not only can the detection gas be prevented from escaping into the air through the filling gun, but the residual detection gas can also be recovered to avoid waste.

[0020] In some embodiments of the present application, the filling device also includes: a second recovery pipeline, a first vacuum pump, a first buffer tank and a second recovery valve, one end of the second recovery pipeline is connected to the connecting pipeline, and the other end of the second recovery pipeline is connected to the inlet of the second tank body; the first vacuum pump is arranged in the second recovery pipeline; the first buffer tank is arranged in the second recovery pipeline, and the first buffer tank is arranged between the first vacuum pump and the connecting pipeline; the second recovery valve is arranged in the second recovery pipeline, and the first buffer tank is arranged between the second recovery valve and the first vacuum pump.

[0021] In this way, after the detection gas in the connecting pipeline is recovered through the first recovery pipeline, some residual detection gas still exists in the connecting pipeline and the inflation component. At this time, the second recovery valve can be opened to connect the second recovery pipeline.

[0022] The first evacuation pump is then activated to recover the remaining test gas through the second recovery pipeline into the second tank. Once the remaining test gas has been recovered, the second recovery valve is closed, sealing the second recovery pipeline. This allows for more complete recovery of the remaining test gas in the connecting pipeline and the inflation assembly.

[0023] By arranging the first buffer tank in the second recovery pipeline and between the first evacuation pump and the connecting pipeline, the first buffer tank can buffer the pressure of the second recovery pipeline to stabilize the pressure in the second recovery pipeline and avoid damage to the filling device due to large changes in the pressure in the second recovery pipeline when the first evacuation pump is working.

[0024] In some embodiments of the present application, the filling device also includes an evacuation pipeline, a second evacuation pump, a second buffer tank and an evacuation valve, one end of the evacuation pipeline is connected to the connecting pipeline for discharging the detection gas in the connecting pipeline; the second evacuation pump is arranged in the evacuation pipeline; the second buffer tank is arranged in the evacuation pipeline, and the second buffer tank is arranged between the second evacuation pump and the connecting pipeline; the evacuation valve is arranged in the evacuation pipeline, and the second buffer tank is arranged between the evacuation valve and the second evacuation pump.

[0025] In this way, before filling the device to be tested with the test gas, the evacuation valve can be opened and the second evacuation pump can be started. The second evacuation pump can evacuate the air in the device to be tested, allowing the air in the device to be tested to be discharged through the evacuation pipeline, thereby preventing the air in the device to be tested from affecting the concentration of the test gas and causing deviations in the test results, thereby improving the detection accuracy of the device to be tested. The second buffer tank is installed in the evacuation pipeline, and the second buffer tank is installed between the second evacuation pump and the connecting pipeline. The second buffer tank can stabilize the pressure in the evacuation pipeline, avoiding damage to the filling device due to large pressure fluctuations in the evacuation pipeline when the second evacuation pump is operating.

[0026] In some embodiments of the present application, the inflation assembly further includes: a vacuum gauge, which is arranged in the connecting pipeline; and / or the filling device further includes: a second pressure reducing valve, which is arranged in the main inflation pipeline.

[0027] In this way, the vacuum gauge can detect the vacuum degree in the connecting pipeline. When the detection gas in the connecting pipeline is recovered, the first recovery valve can seal or open the first recovery pipeline according to the detection result of the vacuum gauge, and the second recovery valve can seal or open the second recovery pipeline according to the detection result of the vacuum gauge.

[0028] When the detection gas in the first tank body flows to the first filling pipeline and the second filling pipeline, it will first be reduced in pressure by the second pressure reducing valve, thereby reducing the pressure of the detection gas passing through the first filling pipeline and the second filling pipeline, avoiding excessive pressure of the detection gas and causing a greater impact on the first filling pipeline and the second filling pipeline. The second pressure reducing valve can reduce the pressure of the detection gas in the first tank body when it enters the first filling pipeline and the second filling pipeline, avoiding excessive pressure of the detection gas in the first tank body and causing damage to the filling device.

[0029] In some embodiments of the present application, there are two filling devices, and the main inflation pipes of the two filling devices are both connected to the outlet of the first tank body.

[0030] In this way, the gas detection filling equipment is equipped with two filling devices, which allows the gas detection filling equipment to fill two pieces of equipment to be detected with detection gas at the same time, or the two filling devices can fill the same equipment to be detected with detection gas at the same time, thereby improving the filling efficiency of the gas detection filling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 One of the structural diagrams of gas detection and filling equipment is provided for this application;

[0032] Figure 2 The second structural diagram of the gas detection and filling equipment is provided for this application;

[0033] Figure 3 The third structural diagram of the gas detection and filling equipment is provided for this application;

[0034] Figure 4 A fourth structural diagram of a gas detection and filling device is provided for this application;

[0035] Figure 5 A fifth structural diagram of a gas detection and filling device is provided for this application;

[0036] Figure 6 The sixth structural diagram of the gas detection and filling equipment is provided for this application;

[0037] Figure 7 The seventh structural diagram of the gas detection and filling equipment is provided for this application;

[0038] Figure 8 The eighth structural diagram of the gas detection and filling equipment is provided for this application;

[0039] Figure 9 A ninth structural diagram of a gas detection and filling device is provided for this application;

[0040] Figure 10 The present application provides a structural diagram of a gas detection and filling device.

[0041] Figure 11 The present application provides a structural diagram of a gas detection and filling device eleven;

[0042] Figure 12 The present application provides a structural diagram of a gas detection and filling device;

[0043] Figure 13 The present application provides a structural diagram of a gas detection and filling device 13;

[0044] Figure 14 A fourteenth structural diagram of a gas detection and filling device is provided for this application.

[0045] Reference numerals: 100, gas detection and filling equipment; 10, first tank body; 20, filling device; 21, filling assembly; 22, main filling pipe; 23, first filling pipeline; 231, first pressure reducing valve; 24, second filling pipeline; 241, second valve; 232, first valve; 211, connecting pipeline; 212, filling gun; 213, first filter; 214, first pressure detector; 30, second tank body; 25, first Recovery pipeline; 251, first recovery valve; 26, second recovery pipeline; 262, first evacuation pump; 263, first buffer tank; 261, second recovery valve; 27, evacuation pipeline; 271, second evacuation pump; 272, second buffer tank; 273, evacuation valve; 215, vacuum gauge; 221, second pressure reducing valve; 216, detection valve; 11, outlet pipeline; 12, outlet valve; 31, inlet pipeline; 32, inlet valve. DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0047] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0050] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0051] Equipment with confined spaces such as pipes or cavities, such as heat exchangers and compressors, often requires leak testing to ensure the tightness of the equipment. In existing technologies, the compressed mixed gas is stored in a tank, where the internal pressure is relatively high. When the filling equipment typically pumps the mixed gas from the tank into the equipment to be tested through a filling pipe, this can cause unstable internal pressure in the equipment to be tested, leading to sudden increases or decreases in pressure, which can damage the equipment.

[0052] In order to solve the above problems, the embodiments of the present invention adopt the following technical solutions: Figure 1 As shown, a gas detection and filling device 100 is provided, comprising: a first tank body 10 and a filling device 20, wherein the first tank body 10 is used to store detection gas.

[0053] The first tank body 10 can be made of carbon steel, which provides the first tank body 10 with good strength and weldability. The first tank body 10 can also be made of stainless steel, which provides the first tank body 10 with excellent corrosion resistance and high temperature resistance. The first tank body 10 made of stainless steel is suitable for storing corrosive gases or high-temperature gases. The first tank body 10 can also be made of an alloy material, which allows the first tank body 10 to adapt to higher pressures, temperatures, or corrosive environments. This application is not limited to this.

[0054] It should be noted that the first tank body 10 may include an outlet and an inlet, the inlet is used to fill the first tank body 10 with the detection gas, and the outlet is used to discharge the detection gas in the first tank body 10.

[0055] In addition, the detection gas can be nitrogen, helium, or a nitrogen-helium mixed gas, etc., which is not limited in this application.

[0056] like Figure 1 and Figure 2 As shown, the filling device 20 includes: a filling component 21, and the filling component 21 is used to fill the detection gas into the device to be detected.

[0057] like Figure 1 and Figure 2 As shown, the filling device 20 further includes: a main inflation pipe 22 , one end of which is connected to the outlet of the first tank body 10 .

[0058] like Figure 1 and Figure 2 As shown, the filling device 20 also includes: a first filling pipeline 23, one end of the first filling pipeline 23 is connected to the other end of the main filling pipe 22, and the other end of the first filling pipeline 23 is connected to the filling component 21; the first filling pipeline 23 is provided with a first pressure reducing valve 231.

[0059] Among them, the first pressure reducing valve 231 can be a diaphragm type, an inner spring piston type, a combination type, an action type, a piston type, a direct-acting type or a pilot type, etc., and this application does not limit this.

[0060] like Figure 1 and Figure 2 As shown, the filling device 20 also includes: a second filling pipeline 24, one end of the second filling pipeline 24 is connected to the other end of the main filling pipe 22, and the other end of the second filling pipeline 24 is connected to the filling component 21; a second valve 241 is provided in the second filling pipeline 24, which is used to open or block the second filling pipeline 24.

[0061] The second valve 241 may be a butterfly valve, a ball valve, or a solenoid valve, etc., and this application does not limit this.

[0062] It should be noted that one end of the main air charging pipe 22 is connected to the outlet of the first tank body 10 , and the other end of the main air charging pipe 22 is connected to the first filling pipeline 23 and the second filling pipeline 24 .

[0063] In the present application, the detection gas in the first tank body 10 is filled into the device to be detected through the filling device 20. During the filling process of the device to be detected, the filling component 21 is first connected to the device to be detected, and the second valve 241 is closed. At this time, the second valve 241 blocks the second filling pipeline 24. After the detection gas in the first tank body 10 passes through the main filling pipeline 22, it enters the filling component 21 along the first filling pipeline 23 connected to the main filling pipeline 22, and the filling component 21 injects the detection gas into the device to be detected. In this process, since the first filling pipeline 23 is provided with a first pressure reducing valve 231, the first pressure reducing valve 231 can reduce the pressure in the first filling pipeline 23. Therefore, the pressure of the detection gas filled into the device to be detected through the first filling pipeline 23 is relatively low.

[0064] Subsequently, the second valve 241 is opened to connect the second filling line 24. At this time, the test gas in the first tank 10 is filled into the device to be tested through the second filling line 24. Since the second filling line 24 is not provided with a pressure reducing device, the pressure of the test gas filled into the device to be tested through the second filling line 24 is higher than the pressure of the test gas filled into the device to be tested through the first filling line 23.

[0065] Therefore, by first filling the detection gas into the equipment to be detected through the first filling pipeline 23 and then filling the detection gas into the equipment to be detected through the second filling pipeline 24, the pressure of the detection gas passed into the equipment to be detected can be gradually increased to avoid the pressure of the detection gas passed into the equipment to be detected being too high, resulting in unstable internal pressure of the equipment to be detected, causing damage to the equipment to be detected or inaccurate detection results.

[0066] In some embodiments of the present application, Figure 1 and Figure 3 As shown, the filling device 20 further includes: a first valve 232 , which is provided on the first filling pipeline 23 and is used to open or block the first filling pipeline 23 .

[0067] The first valve 232 may be a butterfly valve, a ball valve, or a solenoid valve, etc., and this application does not limit this.

[0068] In addition, the first pressure reducing valve 231 may be located between the first valve 232 and the main inflation pipe 22 , and the first valve 232 may be located between the first pressure reducing valve 231 and the main inflation pipe 22 , which is not limited in this application.

[0069] In this way, when the test gas is being filled into the device to be tested through the second filling line 24, the first valve 232 can be closed to block the first filling line 23. This prevents the first filling line 23 from dividing the pressure of the second filling line 24, thereby ensuring the pressure of the test gas in the second filling line 24, allowing the pressure in the device to be tested to quickly reach the required pressure, thereby improving the filling efficiency.

[0070] When filling the device to be tested, the inflation component 21 is first connected to the device to be tested, and the first valve 232 is opened and the second valve 241 is closed, so that the first valve 232 connects the first filling line 23 and the second valve 241 blocks the second filling line 24. After the detection gas in the first tank body 10 passes through the main inflation pipe 22, it enters the inflation component 21 along the first filling line 23 connected to the main inflation pipe 22, and the detection gas is injected into the device to be tested by the inflation component 21. Subsequently, the first valve 232 is closed and the second valve 241 is opened, so that the first valve 232 blocks the first filling line 23 and the second valve 241 connects the second filling line 24, and the detection gas in the first tank body 10 is filled into the device to be tested through the second filling line 24. After the filling is completed, the first valve 232 is opened and the second valve 241 is closed, so that the first valve 232 blocks the first filling pipeline 23 and the second valve 241 blocks the second filling pipeline 24. In this way, not only can the efficiency of the filling device 20 in filling the detection equipment with the detection gas be controlled by controlling the opening and closing of the first valve 232 and the second valve 241, but also the leakage of the detection gas in the first tank body 10 can be avoided after the filling is completed.

[0071] In some embodiments of the present application, Figure 1 and Figure 4 As shown, the first pressure reducing valve 231 is provided between the main air charging pipe 22 and the first valve 232 .

[0072] In this way, the first pressure reducing valve 231 is set between the main inflation pipe 22 and the first valve 232. When the detection gas in the first tank body 10 flows to the first valve 232, it will first be reduced in pressure through the first pressure reducing valve 231, thereby reducing the pressure of the detection gas passing through the first valve 232, avoiding excessive pressure of the detection gas and causing a greater impact on the first valve 232, thereby avoiding damage to the first valve 232.

[0073] In some embodiments of the present application, Figure 2 and Figure 5 As shown, the inflation component 21 includes: a connecting pipeline 211 and a filling gun 212, the other end of the first filling pipeline 23 and the other end of the second filling pipeline 24 are both connected to the connecting pipeline 211; the filling gun 212 is connected to the connecting pipeline 211, and the filling gun 212 is used to fill the detection gas into the equipment to be detected.

[0074] It should be noted that both ends of the first filling pipeline 23 are connected to the connecting pipeline 211 and the main inflation pipeline 22 respectively, and both ends of the second filling pipeline 24 are connected to the connecting pipeline 211 and the main inflation pipeline 22 respectively.

[0075] The first filling pipeline 23 and the second filling pipeline 24 are both connected to the inlet of the connecting pipeline 211; the filling gun 212 is connected to the outlet of the connecting pipeline 211. The connecting pipeline 211 can realize the interconnection of multiple pipelines. When it is necessary to connect the first filling pipeline 23, the second filling pipeline 24 or the filling gun 212 to other pipelines, it is only necessary to open the corresponding opening on the connecting pipeline 211, and there is no need to redesign the pipeline to connect the first filling pipeline 23, the second filling pipeline 24 or the filling gun 212 to other pipelines.

[0076] When the position of the first filling pipeline 23, the second filling pipeline 24 or the filling gun 212 changes, it is only necessary to open corresponding openings at different positions on the connecting pipeline 211, without having to redesign the pipeline to connect the first filling pipeline 23, the second filling pipeline 24 and the filling gun 212.

[0077] In a possible structural design, such as Figure 2 and Figure 6 As shown, the inflatable component 21 further includes: a first filter 213 and a first pressure detector 214 .

[0078] The first filter 213 may be disposed between the first pressure detector 214 and the filling gun 212 , and the first pressure detector 214 may also be disposed between the first filters 213 , which is not limited in the present application.

[0079] Among them, the pressure detector can be a liquid column type, an elastic type, a load type, an electrical measurement type, etc., and this application does not limit this.

[0080] In addition, the filter may be an adsorption type gas filter, a chemical reaction type gas filter or a concentration type gas filter, etc., and this application does not limit this.

[0081] In this way, the filter can filter the gas passing through the filling gun 212 to remove impurities such as particulate matter, microorganisms, and aerosols, providing a clean gas environment, reducing damage to the filling gun 212 and the equipment to be tested caused by impurities, extending the service life of the filling gun 212, and reducing the frequency of cleaning the filling gun 212, thereby reducing equipment operating costs. The pressure detector can detect the pressure of the test gas passing through the inflatable component 21. Based on the detection results of the pressure detector, the first pressure reducing valve 231 can be adjusted to control the pressure of the test gas flowing into the inflatable component 21, so that the pressure of the test gas reaches the required detection range.

[0082] In some embodiments of the present application, Figure 1 and Figure 7 As shown, the gas detection and filling equipment 100 also includes a second tank body 30; the filling device 20 also includes: a first recovery pipeline 25 and a first recovery valve 251, one end of the first recovery pipeline 25 is connected to the connecting pipeline 211, and the other end of the first recovery pipeline 25 is connected to the inlet of the second tank body 30; the first recovery valve 251 is arranged on the first recovery pipeline 25, and the first recovery valve 251 is used to conduct or block the first recovery pipeline 25.

[0083] The second tank body 30 can be made of carbon steel to provide good strength and weldability. Alternatively, the second tank body 30 can be made of stainless steel to provide excellent corrosion resistance and high-temperature resistance, making it suitable for storing corrosive or high-temperature gases. Alternatively, the second tank body 30 can be made of an alloy material to adapt to higher pressures, temperatures, or corrosive environments. This application is not limited thereto.

[0084] In addition, the first recovery valve 251 can be a butterfly valve, a ball valve or a solenoid valve, etc., and this application does not limit this.

[0085] It should be noted that the second tank body 30 may include an outlet and an inlet, the inlet is used to fill the second tank body 30 with detection gas, and the outlet is used to discharge the detection gas in the first tank body 10.

[0086] In this way, when the gas detection filling device 100 has completed filling the device to be detected with the detection gas, the first recovery valve 251 can be opened so that the first recovery valve 251 conducts the first recovery pipeline 25, and the detection gas in the device to be detected can be recovered to the second tank body 30 through the first recovery pipeline 25. After the detection gas is recovered, the first recovery valve is closed so that the first recovery valve 251 blocks the first recovery pipeline 25. In this way, not only can the detection gas be prevented from escaping into the air through the filling gun 212, but the residual detection gas can also be recovered to avoid waste.

[0087] In some embodiments of the present application, Figure 1 and Figure 8 As shown, the filling device 20 also includes: a second recovery pipeline 26, a first evacuation pump 262, a first buffer tank 263 and a second recovery valve 261, one end of the second recovery pipeline 26 is connected to the connecting pipeline 211, and the other end of the second recovery pipeline 26 is connected to the inlet of the second tank body 30; the first evacuation pump 262 is arranged in the second recovery pipeline 26; the first buffer tank 263 is arranged in the second recovery pipeline 26, and the first buffer tank 263 is arranged between the first evacuation pump 262 and the connecting pipeline 211; the second recovery valve 261 is arranged in the second recovery pipeline 26, and the first buffer tank 263 is arranged between the second recovery valve 261 and the first evacuation pump 262.

[0088] Among them, the second recovery valve 261 can be a butterfly valve, a ball valve or a solenoid valve, etc., and this application does not limit this.

[0089] The first evacuation pump 262 may be a rotary vane pump, a centrifugal pump, or a dry pump, etc., which is not limited in this application.

[0090] In addition, the first buffer tank 263 can be a diaphragm buffer tank or an airbag buffer tank, which is not limited in this application.

[0091] In this way, after the detection gas in the connecting pipe 211 is recovered through the first recovery pipe 25, some residual detection gas still exists in the connecting pipe 211 and the inflatable component 21. At this time, the second recovery valve 261 can be opened to conduct the second recovery pipe 26.

[0092] Then start the first vacuum pump 262 to recover the residual detection gas to the second tank body 30 through the second recovery pipeline 26. After the residual detection gas is recovered, close the second recovery valve to make the second recovery valve 261 block the second recovery pipeline 26. Close the second recovery valve to make the residual detection gas in the connecting pipeline 211 and the inflation component 21 more thoroughly recovered.

[0093] By arranging the first buffer tank 263 in the second recovery pipeline 26 and the first buffer tank 263 between the first evacuation pump 262 and the connecting pipeline 211, the first buffer tank 263 can buffer the pressure of the second recovery pipeline 26 to stabilize the pressure in the second recovery pipeline 26 and avoid damage to the filling device 20 due to large changes in the pressure in the second recovery pipeline 26 when the first evacuation pump 262 is working.

[0094] In a possible structural design, such as Figure 1 and Figure 9 As shown, the second recovery valve 261 is provided between the second tank 30 and the first evacuation pump 262 .

[0095] In this way, when the second recovery valve 261 blocks the second recovery pipeline 26, the detection gas in the second tank body 30 can be prevented from flowing into the first vacuum pump 262 and the first buffer tank 263, causing the pressure inside the first buffer tank 263 and the first vacuum pump 262 to be higher, affecting the service life of the first vacuum pump 262 and the first buffer tank 263.

[0096] In some embodiments of the present application, Figure 1 and Figure 10 As shown, the filling device 20 also includes: an evacuation pipeline 27, a second evacuation pump 271, a second buffer tank 272 and an evacuation valve 273. One end of the evacuation pipeline 27 is connected to the connecting pipeline 211 for discharging the detection gas in the connecting pipeline 211; the second evacuation pump 271 is arranged in the evacuation pipeline 27; the second buffer tank 272 is arranged in the evacuation pipeline 27, and the second buffer tank 272 is arranged between the second evacuation pump 271 and the connecting pipeline 211; the evacuation valve 273 is arranged in the evacuation pipeline 27, and the second buffer tank 272 is arranged between the evacuation valve 273 and the second evacuation pump 271.

[0097] Among them, the second recovery valve 261 can be a butterfly valve, a ball valve or a solenoid valve, etc., and this application does not limit this.

[0098] The first evacuation pump 262 may be a rotary vane pump, a centrifugal pump, or a dry pump, etc., which is not limited in this application.

[0099] In addition, the first buffer tank 263 can be a diaphragm buffer tank or an airbag buffer tank, which is not limited in this application.

[0100] In this way, before filling the test gas into the device to be tested, the evacuation valve 273 can be opened and the second evacuation pump 271 can be started. The second evacuation pump 271 can evacuate the air in the device to be tested, so that the air in the device to be tested is discharged through the evacuation pipeline 27, thereby preventing the air in the device to be tested from affecting the concentration of the test gas and causing deviations in the test results, thereby improving the detection accuracy of the device to be tested. The second buffer tank 272 is arranged in the evacuation pipeline 27, and the second buffer tank 272 is arranged between the second evacuation pump 271 and the connecting pipeline 211. The second buffer tank 272 can stabilize the pressure in the evacuation pipeline 27, thereby preventing the pressure in the evacuation pipeline 27 from changing significantly when the second evacuation pump 271 is working, thereby preventing damage to the filling device 20.

[0101] In some embodiments of the present application, Figure 2 and Figure 11 As shown, the inflation component 21 further includes: a vacuum gauge 215 , which is arranged on the connecting pipe 211 ; and / or the filling device 20 further includes: a second pressure reducing valve 221 , which is arranged on the main inflation pipe 22 .

[0102] Among them, the second pressure reducing valve 221 can be a diaphragm type, an inner spring piston type, a combination type, an action type, a piston type, a direct-acting type or a pilot type, etc., and this application does not limit this.

[0103] In this way, the vacuum gauge 215 can detect the vacuum degree in the connecting pipeline 211. When the detection gas in the connecting pipeline 211 is recovered, the first recovery valve 251 can block or open the first recovery pipeline 25 according to the detection result of the vacuum gauge 215, and the second recovery valve 261 can block or open the second recovery pipeline 26 according to the detection result of the vacuum gauge 215.

[0104] When the detection gas in the first tank body 10 flows to the first filling pipeline 23 and the second filling pipeline 24, it will first be reduced in pressure through the second pressure reducing valve 221, thereby reducing the pressure of the detection gas passing through the first filling pipeline 23 and the second filling pipeline 24, avoiding the detection gas pressure being too high and causing a large impact on the first filling pipeline 23 and the second filling pipeline 24. The second pressure reducing valve 221 can reduce the pressure of the detection gas in the first tank body 10 when it enters the first filling pipeline 23 and the second filling pipeline 24, avoiding the detection gas pressure in the first tank body 10 being too high and causing damage to the filling device 20.

[0105] In one possible structural design, Figure 2 and Figure 12 As shown, the inflation component 21 further includes: a detection valve 216 , which is arranged between the vacuum gauge 215 and the connecting pipe 211 .

[0106] In this way, when the vacuum gauge 215 is not needed to work, the detection valve 216 can be closed to avoid the vacuum gauge 215 being in the working state for a long time, which will reduce the service life of the vacuum gauge 215.

[0107] In some embodiments of the present application, Figure 13 As shown, there are two filling devices 20 , and the main filling pipes 22 of the two filling devices 20 are both connected to the outlet of the first tank body 10 .

[0108] The first recovery pipeline 25 and the second recovery pipeline 26 of the two filling devices 20 are both connected to the inlet of the second tank body 30 .

[0109] It should be noted that the configurations of the two filling devices 20 may be the same or different, and this application does not limit this.

[0110] In this way, the gas detection filling equipment 100 is provided with two filling devices 20, so that the gas detection filling equipment 100 can fill two pieces of equipment to be detected with detection gas at the same time, or the two filling devices 20 can fill the same equipment to be detected with detection gas at the same time, thereby improving the filling efficiency of the gas detection filling equipment 100.

[0111] In one possible structural design, Figure 14 As shown, the first tank body 10 also includes: an outlet pipeline 11 and an outlet valve 12, one end of the outlet pipeline 11 is connected to the outlet of the first tank body 10, and the other end of the outlet pipeline 11 is connected to the main inflation pipe 22; the outlet valve 12 is arranged with the outlet pipeline 11, and the outlet valve 12 is used to conduct or block the outlet pipeline 11; and / or; the second tank body 30 also includes: an inlet pipeline 31 and an inlet valve 32, one end of the inlet pipeline 31 is connected to the inlet of the second tank body 30, and the other end of the inlet pipeline 31 is connected to the first recovery pipeline 25 and the second recovery pipeline 26, the inlet valve 32 is arranged with the inlet pipeline 31, and the inlet valve 32 is used to conduct or block the inlet pipeline 31.

[0112] In this way, when there is no need to fill the detection gas, the outlet valve 12 can block the outlet pipeline 11 to prevent the detection gas in the first tank body 10 from leaking. When there is no need to recover the detection gas, the inlet valve 32 can block the inlet pipeline 31 to prevent the detection gas in the second tank body 30 from leaking.

[0113] In some embodiments of the present application, the gas detection and filling device 100 is controlled by a PLC system, and the system performs various actions according to the preset program of the PLC system. The operation and operating status information of the gas detection and filling device 100 will be completed and displayed on the touch screen.

[0114] The PLC system provides three operating modes: automatic operation, manual step-by-step operation, and manual maintenance, each suitable for different situations. Under normal circumstances, the system operates in automatic mode, but manual step-by-step operation is available when a device malfunctions. Testing, maintenance, and overhaul can be performed in manual maintenance mode, which displays the operating status.

[0115] During the operation of the gas detection and filling equipment 100, the PLC system control will monitor and display the working conditions of the gas detection and filling equipment 100 and the operating status of major key components such as the first pressure reducing valve 231, the first evacuation pump 262 and the vacuum gauge 215.

[0116] For various faults and warning information during the operation of the gas detection and filling equipment 100, an alarm prompt will be given online in real time. The alarm uses a synchronous sound and light reminder method. The alarm indicator light on the operation box lights up, the buzzer sounds long, and specific information is displayed on the touch screen.

[0117] The PLC system controls the operation time statistics of the components of the gas detection and filling equipment 100, such as the first pressure reducing valve 231, the first valve 232 and the first evacuation pump 262. When the statistical result exceeds the set time, the PLC system controls the alarm to prompt the maintenance of the gas detection and filling equipment 100. After the maintenance, the operation time can be reset.

[0118] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprise" does not exclude other components or steps, and "a" or "an" does not exclude multiple components or steps. A single processor or other unit may implement several functions listed in the claims. The fact that certain measures are recorded in different dependent claims does not mean that these measures cannot be combined to produce good results.

[0119] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

[0120] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A gas detection and filling device, characterized in that: include: The first tank is used to store the test gas; Charging device, comprising: A charging component, used for charging the device to be tested with the detection gas; a main inflation pipe, one end of which is connected to the outlet of the first tank; a first charging pipeline, one end of which is in communication with the other end of the main charging pipe, and the other end of which is in communication with the charging assembly; the first charging pipeline is provided with a first pressure reducing valve; a second filling pipeline, one end of the second filling pipeline being in communication with the other end of the main inflation pipe, and the other end of the second filling pipeline being in communication with the inflation assembly; The second valve is provided in the second filling pipeline and is used for opening or blocking the second filling pipeline.

2. A gas detection and filling device according to claim 1, characterized in that: The filling device also includes: The first valve is provided on the first filling pipeline and is used for opening or blocking the first filling pipeline.

3. A gas detection and filling device according to claim 2, characterized in that: The first pressure reducing valve is arranged between the main inflation pipe and the first valve.

4. A gas detection and filling device according to claim 1, characterized in that: The inflatable component comprises: a connecting pipeline, the other end of the first filling pipeline and the other end of the second filling pipeline being both in communication with the connecting pipeline; A filling gun is connected to the connecting pipeline and is used to fill the detection gas into the device to be detected.

5. A gas detection and filling device according to claim 4, characterized in that: The gas detection and filling equipment also includes a second tank body; The filling device also includes: a first recovery pipeline, one end of which is in communication with the connecting pipeline, and the other end of which is in communication with the inlet of the second tank; A first recovery valve is provided on the first recovery pipeline, and the first recovery valve is used to open or block the first recovery pipeline.

6. A gas detection and filling device according to claim 5, characterized in that: The filling device also includes: a second recovery pipeline, one end of which is in communication with the connecting pipeline, and the other end of which is in communication with the inlet of the second tank; a first evacuation pump, the first evacuation pump being provided in the second recovery pipeline; a first buffer tank, the first buffer tank being provided in the second recovery pipeline, and the first buffer tank being provided between the first evacuation pump and the connecting pipeline; A second recovery valve is provided in the second recovery pipeline, and the first buffer tank is provided between the second recovery valve and the first evacuation pump.

7. A gas detection and filling device according to claim 4, characterized in that: The filling device also includes: an evacuation pipeline, one end of which is in communication with the connecting pipeline and is used to discharge the detection gas in the connecting pipeline; a second evacuation pump, the second evacuation pump being provided in the evacuation pipeline; a second buffer tank, the second buffer tank being provided in the evacuation pipeline, and the second buffer tank being provided between the second evacuation pump and the connecting pipeline; A pump-down valve is provided on the pump-down pipeline, and the second buffer tank is provided between the pump-down valve and the second pump-down pump.

8. A gas detection and filling device according to claim 4, characterized in that: The inflatable component also includes: a vacuum gauge, the vacuum gauge being provided on the connecting pipeline; And / or, the filling device further comprises: A second pressure reducing valve is provided in the main inflation pipe.

9. A gas detection and filling device according to any one of claims 1 to 8, characterized in that: There are two filling devices, and the main inflation pipes of the two filling devices are both connected to the outlet of the first tank body.

10. A gas detection and filling device, characterized in that: include: The first tank is used to store the test gas; Charging device, comprising: A charging component, used for charging the device to be tested with the detection gas; a main inflation pipe, one end of which is connected to the outlet of the first tank; a first filling pipeline, one end of which is in communication with the other end of the main inflation pipe, and the other end of which is in communication with the inflation assembly; a second filling pipeline, one end of the second filling pipeline being in communication with the other end of the main inflation pipe, and the other end of the second filling pipeline being in communication with the inflation assembly; The inflation pressure of the first inflation pipeline is lower than the inflation pressure of the second inflation pipeline, and the equipment to be detected is inflated through the second inflation pipeline after the first inflation pipeline completes inflating the equipment to be detected.

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