Standard gas replacement equipment

Abstract

The present application provides a standard gas replacement device, including a standard component, which includes a standard gas bottle and a standard gas chamber, wherein the standard gas bottle is configured to provide standard gas; a control component connected to the outlet of the standard gas bottle and the gas inlet of the standard gas chamber to control the conduction or closing of the standard gas bottle and the standard gas chamber; and a replacement component connected to the gas outlet of the standard gas chamber to replace the standard gas with the air in the standard gas chamber. The control component is connected to the standard gas bottle and the standard gas chamber respectively, and the replacement component is connected to the standard gas chamber. During the operation of the replacement component, the standard gas can be replaced with the air in the standard gas chamber by opening or closing the control component, and the inflation of the standard gas chamber can be completed faster and more accurately.

Description

Technical Field

[0001] The present application relates to the technical field of environmental monitoring, and in particular to a standard gas replacement device. Background Art

[0002] With the continuous improvement of human life and the continuous advancement of science and technology, we pay more and more attention to the environment in which we live. The large amount of harmful substances emitted by the combustion of various fuels has become the main source of air pollution in the world today. In order to protect the environment, the emission of various pollutants must be limited, so the monitoring of flue gas emissions is particularly important.

[0003] In the field of atmospheric environmental pollution monitoring, a key component is used - the standard gas chamber, which is filled with standard gas of specified concentration (hence it is called the standard gas chamber). However, there is a large amount of air inside the standard gas chamber, so a device is urgently needed to discharge the air in the standard gas chamber and fill it with standard gas. Utility Model Content

[0004] The purpose of the present application is to provide a standard gas replacement device that can replace the air in a standard air chamber and complete the inflation of the standard air chamber faster and more accurately.

[0005] In the first aspect, the present application provides a standard gas replacement device, comprising: a standard component, including a standard gas cylinder and a standard gas chamber, wherein the standard gas cylinder is configured to provide standard gas; a control component, connected to the outlet of the standard gas cylinder and the gas inlet of the standard gas chamber, so as to control the conduction or closing of the standard gas cylinder and the standard gas chamber; a replacement component, connected to the gas outlet of the standard gas chamber, so as to replace the standard gas with the air in the standard gas chamber.

[0006] In the above implementation process, the control component is respectively connected to the standard gas cylinder and the standard gas chamber, and the replacement component is connected to the standard gas chamber. During the operation of the replacement component, the standard gas and the air in the standard gas chamber can be replaced by opening or closing the control component, thereby completing the inflation of the standard gas chamber faster and with higher accuracy.

[0007] In some embodiments, the control component includes a first control structure and a second control structure, the first control structure is connected to the outlet and the second control structure respectively, and the second control structure is connected to the air inlet.

[0008] In the above implementation process, the first control structure and the second control structure are connected between the standard gas cylinder and the standard gas chamber, and the inflation of the standard gas chamber can be completed faster and more accurately by controlling the opening and closing of the first control structure and the second control structure.

[0009] In some embodiments, the first control structure includes a first throttle valve and a first flow meter, and the first throttle valve is connected to the outlet and the first flow meter respectively. The first throttle valve can control the on-off of the standard gas cylinder and the first control structure, and the first flow meter can be used to conveniently control the flow rate of the standard gas released by the standard gas cylinder, which is conducive to the replacement of the standard gas with the air in the standard gas chamber.

[0010] In some embodiments, the second control structure includes a first manual valve, and the first manual valve is connected to the first control structure and the air inlet end respectively. The first manual valve can control the on-off of the standard gas cylinder and the second control structure, so as to facilitate repeated replacement of the standard gas with the air in the standard gas chamber, and achieve faster and more accurate completion of the inflation of the standard gas chamber.

[0011] In some embodiments, the second control structure further includes a second throttle valve and a second flow meter, wherein the second throttle valve is connected to the second flow meter and the first control structure respectively, and the second flow meter is connected to the first manual valve. The second throttle valve can control the on-off of the standard gas cylinder and the second control structure, and the second flow meter can conveniently control the flow rate of the standard gas released by the standard gas cylinder, which is conducive to the replacement of the standard gas with the air in the standard gas chamber.

[0012] In some embodiments, the replacement assembly includes an air pump and a connecting structure, and the connecting structure is respectively connected to the air pump and the air outlet. Through the air extraction of the air pump, the first control structure, the second control structure and the connecting structure are opened and closed accordingly, so that the standard gas and the air in the standard air chamber can be gradually replaced, which is conducive to completing the inflation of the standard air chamber faster and more accurately.

[0013] In some embodiments, the connection structure includes a second manual valve and a pressure gauge, and the pressure gauge is connected to the second manual valve and the air pump respectively.

[0014] In some embodiments, the standard gas replacement device is configured with a first state, and when the standard gas replacement device is in the first state, the first control structure is configured to be closed, and the second control structure and the connection structure are configured to be turned on.

[0015] In the above implementation process, when the device is in the first state, and the first control structure is closed, the second control structure and the connecting structure are opened, so that the vacuum pump is working, the air inside the first control structure can be extracted, which facilitates the subsequent replacement of the standard gas with the air in the standard gas chamber.

[0016] In some embodiments, the standard gas replacement device is also configured with a second state, and when the standard gas replacement device is in the second state, the first control structure is configured to be open, the second control structure is configured to be closed, and the connection structure is configured to be open, so that the connection structure reaches a preset pressure.

[0017] In the above-mentioned implementation process, when the device is in the second state, the first control structure and the connecting structure are opened, and the second control structure is closed, so that the vacuum pump is working, as the vacuum time gradually increases, a negative pressure will gradually form inside the connecting structure until the preset pressure is reached, which is conducive to the replacement of the standard gas with the air in the standard air chamber. After repeating this step many times, the inflation of the standard air chamber can be completed faster and with higher accuracy.

[0018] In some embodiments, when the pressure of the connection structure is at the preset pressure, the first control structure is configured to be open, the second control structure is configured to be open, and the connection structure is configured to be closed. This is beneficial for replacing the standard gas with the air in the standard air chamber, and can complete the inflation of the standard air chamber faster and more accurately.

[0019] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the standard gas replacement device provided in an embodiment of the present application.

[0023] Reference numerals

[0024] 100. Standard gas cylinder; 200. Standard gas chamber; 300. Control component; 301. First throttle valve; 302. First flow meter; 303. First manual valve; 304. Second throttle valve; 305. Second flow meter; 400. Air pump; 500. Second manual valve; 600. Pressure gauge. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more. Example

[0029] In related technologies, standard gas chambers are often used in the fields of atmospheric environmental pollution monitoring and combustible gas detection and alarm technology. According to the optical characteristics of the standard gas, corresponding optical lenses are selected to encapsulate the standard gas in a sealed container with a transparent end as a standard gas chamber. The commonly used standard gas packaging method is to continuously introduce standard gas into the gas chamber and discharge the air in the standard gas chamber. However, the time required for this method to discharge the air in the standard gas chamber to the maximum extent cannot be calculated, and continuous ventilation for a longer time is required, which results in a long time and more standard gas consumption.

[0030] In view of this, if Figure 1As shown, in the first aspect, the present application provides a standard gas replacement device, including: a standard component, including a standard gas bottle 100 and a standard gas chamber 200, and the standard gas bottle 100 is configured to provide standard gas; a control component 300, connected to the outlet of the standard gas bottle 100 and the air inlet end of the standard gas chamber 200, so as to control the conduction or closing of the standard gas bottle 100 and the standard gas chamber 200; a replacement component, connected to the air outlet end of the standard gas chamber 200, so as to replace the standard gas with the air in the standard gas chamber 200.

[0031] Exemplarily, the standard gas chamber 200 is provided with a accommodating cavity, which is configured to accommodate air. The control component 300 connects the standard gas cylinder 100 with the standard gas chamber 200. The replacement component can evacuate the standard gas chamber 200 in certain steps, and finally replace the air in the standard gas chamber 200 with the standard gas.

[0032] In the above-mentioned implementation process, the control component 300 is respectively connected to the standard gas cylinder 100 and the standard gas chamber 200, and the replacement component is connected to the standard gas chamber 200. During the operation of the replacement component, the standard gas and the air in the standard gas chamber 200 can be replaced by opening or closing the control component 300, thereby completing the inflation of the standard gas chamber 200 faster and with higher precision.

[0033] In some embodiments, the control assembly 300 includes a first control structure and a second control structure, the first control structure is connected to the outlet and the second control structure respectively, and the second control structure is connected to the air inlet.

[0034] In the above implementation process, the first control structure and the second control structure are connected between the standard gas cylinder 100 and the standard gas chamber 200, and the inflation of the standard gas chamber 200 can be completed faster and more accurately by controlling the opening and closing of the first control structure and the second control structure.

[0035] like Figure 1 As shown, the first control structure includes a first throttle valve 301 and a first flow meter 302. The conducting direction of the first throttle valve 301 is the flow direction from the standard gas bottle 100 to the second control structure. The first throttle valve 301 is respectively connected to the outlet and the first flow meter 302. The first throttle valve 301 can control the on-off of the standard gas bottle 100 and the first control structure, and the first flow meter 302 can be used to conveniently control the flow rate of the standard gas released by the standard gas bottle 100, which is conducive to the replacement of the standard gas with the air in the standard gas chamber 200.

[0036] In some embodiments, the second control structure includes a first manual valve 303, and the first manual valve 303 is connected to the first control structure and the air inlet end respectively. The first manual valve 303 can control the on-off of the standard gas cylinder 100 and the second control structure, so as to facilitate repeated replacement of the standard gas with the air in the standard gas chamber 200, and achieve faster and more accurate completion of the inflation of the standard gas chamber 200.

[0037] In some embodiments, the second control structure further includes a second throttle valve 304 and a second flow meter 305. The conduction direction of the second throttle valve 304 is the flow direction from the first control structure to the standard gas chamber 200. The second throttle valve 304 is respectively connected to the second flow meter 305 and the first flow meter 302 of the first control structure, and the second flow meter 305 is connected to the first manual valve 303. The second throttle valve 304 can control the on-off of the standard gas cylinder 100 and the second control structure, and the second flow meter 305 can be used to conveniently control the flow rate of the standard gas released by the standard gas cylinder 100, which is conducive to the replacement of the standard gas with the air in the standard gas chamber 200.

[0038] In some embodiments, the replacement assembly includes an air pump 400 and a connecting structure, and the connecting structure is respectively connected to the air pump 400 and the air outlet. Through the air extraction of the air pump 400, the first control structure, the second control structure and the connecting structure are opened and closed accordingly, so that the standard gas and the air in the standard air chamber 200 can be gradually replaced, which is conducive to completing the inflation of the standard air chamber 200 faster and more accurately.

[0039] In some embodiments, the connection structure includes a second manual valve 500 and a pressure gauge 600 , and the pressure gauge 600 is connected to the second manual valve 500 and the air pump 400 , respectively.

[0040] In some embodiments, the standard gas replacement device is configured with a first state (the first state includes but is not limited to a starting state), and when the standard gas replacement device is in the first state, the first control structure is configured to be closed, and the second control structure and the connection structure are configured to be turned on.

[0041] That is to say, when the standard gas bottle 100, the first control structure, the second control structure, the standard gas chamber 200, the connecting structure and the vacuum pump 400 are connected according to the set position, first close the first throttle valve 301 of the first control structure, open the second throttle valve 304 and the first manual valve 303 of the second control structure, open the second manual valve 500 of the connecting structure, and at the same time, the vacuum pump 400 performs vacuuming. After the state stabilizes, adjust the second throttle valve 304 so that the flow rate of the second flow meter 305 is 1L / min, slowly open the switch of the standard gas bottle 100, and adjust the first throttle valve 301 so that the flow rate of the first flow meter 302 is above 2L / min, and the flow rate of the second flow meter 305 is 1L / min, thereby completing the processing of the standard gas replacement equipment in the first state.

[0042] In the above implementation process, when the device is in the first state, and the first control structure is closed, the second control structure and the connecting structure are opened, so that the vacuum pump 400 is working, the air inside the first control structure can be extracted, which facilitates the subsequent replacement of the standard gas with the air in the standard gas chamber 200.

[0043] In some embodiments, the standard gas replacement device is also configured with a second state (the second state includes but is not limited to an air exhaust state, wherein the second state is a processing step after the standard gas replacement device completes the first state), and when the standard gas replacement device is in the second state, the first control structure is configured to be open, the second control structure is configured to be closed, and the connecting structure is configured to be open, so that the connecting structure reaches a preset pressure.

[0044] That is to say, when the standard gas replacement equipment completes the steps of the first state, the second manual valve 500 is kept open, the first manual valve 303 is slowly closed, and the vacuum pump 400 evacuates air until the negative pressure gauge reaches -50Kpa, completing the steps of the second state.

[0045] In the above-mentioned implementation process, when the device is in the second state, the first control structure and the connecting structure are opened, and the second control structure is closed, so that the vacuum pump 400 is working, as the vacuum time gradually increases, a negative pressure will gradually form inside the connecting structure until the preset pressure is reached, which is conducive to the replacement of the standard gas with the air in the standard air chamber 200. After repeating this step multiple times, the inflation of the standard air chamber 200 can be completed faster and with higher accuracy.

[0046] In some embodiments, when the pressure of the connection structure is at the preset pressure, the first control structure is configured to be open, the second control structure is configured to be open, and the connection structure is configured to be closed, which is conducive to the replacement of the standard gas with the air in the standard gas chamber 200, and can complete the inflation of the standard gas chamber 200 faster and more accurately.

[0047] That is to say, after completing the steps of the above-mentioned second state, slowly close the second manual valve 500, slowly open the first manual valve 303, so that the flow of the second flow meter 305 is not more than 1L / min and maintain the state until the indication of the second flow meter 305 slowly drops to zero, and then repeat the steps of the second state and the actions of opening the first control structure and the second control structure and closing the connecting structure, wherein the number of repetitions is not specifically limited; the second manual valve 500 is closed after the vacuum pump 400 evacuates to a negative pressure of -50Kpa for the last time, and the first manual valve 303 is opened and inflated until the indication of the second flow meter 305 is zero, and then the first manual valve 303 is slowly closed to complete the inflation.

[0048] It should be understood that the "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0049] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A standard gas replacement device, characterized in that: include: A standard component, comprising a standard gas cylinder and a standard gas chamber, wherein the standard gas cylinder is configured to provide standard gas; A control component, connected to the outlet of the standard gas cylinder and the air inlet of the standard gas chamber, so as to control the conduction or closing of the standard gas cylinder and the standard gas chamber; A replacement component is connected to the gas outlet of the standard gas chamber to replace the standard gas with the air in the standard gas chamber.

2. The standard gas replacement device according to claim 1, characterized in that: The control component includes a first control structure and a second control structure, the first control structure is connected to the outlet and the second control structure respectively, and the second control structure is connected to the air inlet.

3. The standard gas replacement device according to claim 2, characterized in that: The first control structure includes a first throttle valve and a first flow meter, and the first throttle valve is connected to the outlet and the first flow meter respectively.

4. The standard gas replacement device according to claim 3, characterized in that: The second control structure includes a first manual valve, and the first manual valve is respectively connected to the first control structure and the air inlet end.

5. The standard gas replacement device according to claim 4, characterized in that: The second control structure further includes a second throttle valve and a second flow meter. The second throttle valve is connected to the second flow meter and the first control structure respectively, and the second flow meter is connected to the first manual valve.

6. The standard gas replacement device according to claim 2 or 5, characterized in that: The replacement component includes an air pump and a connecting structure, and the connecting structure is respectively connected to the air pump and the air outlet.

7. The standard gas replacement device according to claim 6, characterized in that: The connection structure includes a second manual valve and a pressure gauge, and the pressure gauge is connected to the second manual valve and the air pump respectively.

8. The standard gas replacement device according to claim 7, characterized in that: The standard gas replacement device is configured with a first state, and when the standard gas replacement device is in the first state, the first control structure is configured to be closed, and the second control structure and the connection structure are configured to be turned on.

9. The standard gas replacement device according to claim 8, characterized in that: The standard gas replacement device is also configured with a second state, and when the standard gas replacement device is in the second state, the first control structure is configured to be open, the second control structure is configured to be closed, and the connection structure is configured to be open, so that the connection structure reaches a preset pressure.

10. The standard gas replacement device according to claim 9, characterized in that: When the pressure of the connection structure is at the preset pressure, the first control structure is configured to be opened, the second control structure is configured to be opened, and the connection structure is configured to be closed.

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