CN212188621U - Dynamic air distribution device - Google Patents
Dynamic air distribution device Download PDFInfo
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- CN212188621U CN212188621U CN202020514167.0U CN202020514167U CN212188621U CN 212188621 U CN212188621 U CN 212188621U CN 202020514167 U CN202020514167 U CN 202020514167U CN 212188621 U CN212188621 U CN 212188621U
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Abstract
The utility model discloses a dynamic gas distribution device, which comprises a mixing chamber, a raw gas inlet pipeline and a diluent gas inlet pipeline which are communicated with the inlet of the mixing chamber, and a standard gas outlet pipeline which is communicated with the outlet of the mixing chamber; the feed gas inlet pipeline and the dilution gas inlet pipeline are both connected in series with a flow controller and a self-operated control valve with adjustable opening pressure, and the self-operated control valve is positioned on the upstream of the flow controller. The dynamic configuration device can accurately control the flow ratio of the feed gas and the diluent gas, and is safe and stable in operation. In addition, the storage battery is arranged, so that the requirement of using in a place without an external power supply and the requirement of portability can be met.
Description
Technical Field
The utility model relates to a developments distribution technical field especially indicates a developments distributing device of operation safety and stability.
Background
The dynamic gas distribution is that the raw gas with known concentration and the diluent gas continuously enter a mixing chamber to be mixed according to a constant flow ratio, so that the standard gas with a certain concentration can be continuously prepared. The dilution multiple can be calculated according to the flow ratio of the raw material gas and the dilution gas, the concentration of the prepared standard gas can be calculated according to the dilution multiple, and the standard gas with different concentrations can be obtained by adjusting the flow ratio of the raw material gas and the dilution gas.
In the existing dynamic gas distribution device, the flow of the raw gas and the flow of the diluent gas are controlled by a flow controller, and in order to ensure that the concentration of the configured standard gas meets the requirement, the control precision of the flow controller needs to be improved, and the raw gas and the diluent gas are mixed according to a preset flow ratio.
Therefore, how to improve the control accuracy of the flow controller is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a dynamic air distribution device, which comprises a mixing chamber, a raw gas inlet pipeline and a diluent gas inlet pipeline which are communicated with the inlet of the mixing chamber, and a standard gas outlet pipeline which is communicated with the outlet of the mixing chamber; the feed gas inlet pipeline and the dilution gas inlet pipeline are both connected in series with a flow controller and a self-operated control valve with adjustable opening pressure, and the self-operated control valve is positioned on the upstream of the flow controller.
The self-operated control valve uses the pressure of the medium in the valve as the valve opening force, uses the elastic force of the elastic component in the valve as the valve closing force, when the pressure of the medium in the valve is smaller than the elastic force of the elastic component in the valve, the valve is automatically closed, when the pressure of the medium in the valve is larger than the elastic force of the elastic component in the valve, the valve is automatically opened, when the valve is opened to a certain opening, the pressure of the medium in the valve is balanced with the elastic force of the elastic component in the valve, and at the moment, the valve is stabilized at the opening.
The opening pressure of the self-operated control valve is adjustable, namely the elastic force of the elastic component in the valve is adjustable, so that the opening pressure of the self-operated control valve can be respectively adjusted according to the predetermined flow rate of the raw material gas and the flow rate of the diluent gas in use, and the flow controller is ensured to operate in a reasonable pressure range, so that the flow controller can accurately control the flow rates of the raw material gas and the diluent gas, and the raw material gas and the diluent gas are ensured to be mixed according to a preset flow ratio.
Optionally, the mixing chamber further comprises a first three-way joint, and three interfaces of the first three-way joint are respectively communicated with the gas outlet of the raw gas inlet pipeline, the gas outlet of the diluent gas inlet pipeline and the inlet of the mixing chamber.
Optionally, a flow regulating part is connected in series to the standard gas outlet pipeline.
Optionally, the flow regulating component comprises a flow regulating valve and a flow meter.
Optionally, a pressure relief valve is connected to the outlet of the mixing chamber.
Optionally, the mixing chamber further comprises a pressure relief pipeline, an air inlet of the pressure relief pipeline is communicated with an outlet of the mixing chamber, and the pressure relief valve is connected to the pressure relief pipeline in series.
Optionally, the mixing chamber further comprises a second three-way joint, and three ports of the second three-way joint are respectively communicated with the outlet of the mixing chamber, the air inlet of the pressure relief pipeline and the air inlet of the standard air outlet pipeline.
Optionally, the system further comprises a raw gas tank and a dilution gas tank which are respectively connected with the gas inlet of the raw gas inlet pipeline and the gas inlet of the dilution gas inlet pipeline.
Optionally, the air distribution device further comprises a storage battery, and the storage battery is used for supplying power to the power utilization part of the dynamic air distribution device.
Optionally, the dynamic gas distribution device further comprises a power interface, wherein the power interface is used for connecting an external power supply and supplying power to the power utilization part of the dynamic gas distribution device and the storage battery through the external power supply.
Drawings
Fig. 1 is a schematic view of an embodiment of the dynamic air distribution device provided by the present invention.
The reference numerals are explained below:
the gas mixing device comprises a mixing chamber 1, a raw material gas inlet pipeline 2, a diluent gas inlet pipeline 3, a standard gas outlet pipeline 4, a flow controller 5, a self-operated control valve 6, a first three-way joint 7, a flow regulating valve 8, a flow meter 9, a pressure release valve 10, a pressure release pipeline 11, a second three-way joint 12, a raw material gas tank 13, a diluent gas tank 14, a storage battery 15 and a power supply interface 16.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.
As shown in the figure, the dynamic air distribution device comprises a mixing chamber 1, a raw gas inlet pipeline 2, a diluent gas inlet pipeline 3 and a standard gas outlet pipeline 4. The gas outlet of the raw gas inlet pipeline 2 and the gas outlet of the diluent gas inlet pipeline 3 are communicated with the inlet of the mixing chamber 1, and the gas inlet of the standard gas outlet pipeline 4 is communicated with the outlet of the mixing chamber 1.
The air inlet of the raw gas inlet pipeline 2 is connected with a raw gas tank 13, the air inlet of the dilution gas inlet pipeline 3 is connected with a dilution gas tank 14, and the air outlet of the standard gas outlet pipeline 4 is connected with a gas appliance. Specifically, the raw gas tank 13 and the diluent gas tank 14 may be part of a dynamic dilution device, that is, the dynamic dilution device is already connected with the raw gas tank 13 and the diluent gas tank 14 when leaving a factory, or may be an external gas source that a user is automatically connected to the dynamic dilution device externally.
In the application process, the raw material gas and the diluent gas respectively enter the mixing chamber 1 through the raw material gas inlet pipeline 2 and the diluent gas inlet pipeline 3, the raw material gas and the diluent gas are mixed in the mixing chamber 1 to form standard gas, and the formed standard gas flows out through the standard gas outlet pipeline 4 and flows to gas-using equipment. The gas-using equipment is an external equipment which is externally connected with the dynamic diluting device by a user.
The raw gas inlet pipeline 2 and the diluent gas inlet pipeline 3 are respectively connected in series with a Mass Flow Controller 5 (MFC), which is a first Flow Controller and a second Flow Controller. The first flow controller is used for controlling the flow of the raw material gas, and the second flow controller is used for controlling the flow of the diluent gas, so that the raw material gas and the diluent gas are mixed according to a preset flow ratio, and the preparation of standard gas with preset concentration is ensured.
The raw gas inlet pipeline 2 and the dilution gas inlet pipeline 3 are also connected in series with self-operated control valves 6 which are respectively a first self-operated control valve and a second self-operated control valve, the first self-operated control valve is positioned at the upstream of the first flow controller, and the second self-operated control valve is positioned at the upstream of the second flow controller. The upstream is a position where the gas flows first and the downstream is a position where the gas flows later, with respect to the gas flow direction.
The self-operated control valve 6 uses the pressure of the medium in the valve as the valve opening force, uses the elastic force of the elastic component in the valve as the valve closing force, when the pressure of the medium in the valve is smaller than the elastic force of the elastic component in the valve, the valve is automatically closed, when the pressure of the medium in the valve is larger than the elastic force of the elastic component in the valve, the valve is automatically opened, when the valve is opened to a certain opening, the pressure of the medium in the valve is balanced with the elastic force of the elastic component in the valve, and at the moment, the valve is stabilized at the opening.
The opening pressures of the first self-operated control valve and the second self-operated control valve are adjustable, namely the elastic forces of elastic components in the first self-operated control valve and the second self-operated control valve are adjustable, so that in application, the opening pressure of the first self-operated control valve and the opening pressure of the second self-operated control valve can be adjusted in advance according to the pressures at two ends specified by the first flow controller and the second flow controller, and therefore the first flow controller and the second flow controller can be guaranteed to operate within a reasonable pressure range, the first flow controller and the second flow controller can accurately control the flow of the raw material gas and the diluent gas, and the raw material gas and the diluent gas are guaranteed to be mixed according to a preset flow ratio.
Specifically, the dynamic gas distribution device is further provided with a first three-way joint 7, and three interfaces of the first three-way joint 7 are respectively communicated with the gas outlet of the raw gas inlet pipeline 2, the gas outlet of the diluent gas inlet pipeline 3 and the inlet of the mixing chamber 1. The arrangement is favorable for improving the mixing uniformity of the raw material gas and the diluent gas.
Specifically, the standard gas outlet pipeline 4 is connected in series with a flow regulating component, in the scheme shown in the figure, the flow regulating component is a flow meter 9 and a flow regulating valve 8 which are connected in series, and of course, the flow meter 9 and the flow regulating valve 8 can also be arranged integrally in practical implementation. In the using process, the opening degree of the flow regulating valve 8 is regulated by combining the gas consumption requirement of the gas using equipment and the display of the flowmeter 9, so that the gas output of the standard gas is matched with the gas consumption requirement of the gas using equipment.
Specifically, the outlet of the mixing chamber 1 is connected with a pressure relief valve 10, when the outlet pressure of the mixing chamber 1 is too high, the pressure relief valve 10 is opened, and part of gas is discharged through the pressure relief valve 10 to realize pressure reduction, so that the operation safety of the dynamic gas distribution device is ensured.
In the scheme shown in the figure, the pressure release valve 10 is connected in series on a pressure release pipeline 11, an air inlet of the pressure release pipeline 11 is communicated with an outlet of the mixing chamber 1, and an air outlet of the pressure release pipeline 11 can be directly communicated with the atmosphere or connected with a gas recovery device. A pressure relief pipeline 11 is arranged to facilitate the communication between the pressure relief valve 10 and the outlet of the mixing chamber 1.
In the scheme shown in the figure, a second three-way joint 12 is further arranged, and three interfaces of the second three-way joint 12 are respectively communicated with an outlet of the mixing chamber 1, an air inlet of the pressure relief pipeline 11 and an air inlet of the standard air outlet pipeline 4. By means of the arrangement, when the pressure release valve 10 is opened, the pressure inside the standard gas outlet pipeline 4 can be rapidly reduced, so that the flow regulating and controlling component connected to the standard gas outlet pipeline 4 can be guaranteed to operate within a proper pressure range.
Specifically, the dynamic air distribution device is further provided with a storage battery 15, and the storage battery 15 is used for supplying power to electric components of the dynamic air distribution device. The battery 15 may be a relatively light lithium battery. Through setting up battery 15, make dynamic gas distribution device can use in the place that does not have external power supply, moreover, also be convenient for dynamic gas distribution device's removal, make dynamic gas distribution device more portable.
Specifically, the dynamic air distribution device is further provided with a power interface 16, and the power interface 16 is used for being connected with an external power supply and supplying power to the power utilization components of the dynamic air distribution device and the storage battery 15 through the external power supply. The power supply can be connected with an external power supply for use in places with the external power supply.
To sum up, the utility model provides a developments distributing device has can accurate control flow than, the operation is stable safe, gas mixing homogeneity is good, can use, portable advantage such as in the place that does not have external power supply.
It is right above the utility model provides a dynamic distribution device has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A dynamic air distribution device comprises a mixing chamber (1), and is characterized by further comprising a raw gas inlet pipeline (2) and a diluent gas inlet pipeline (3) which are communicated with an inlet of the mixing chamber (1), and a standard gas outlet pipeline (4) which is communicated with an outlet of the mixing chamber (1); the feed gas inlet pipeline (2) and the diluent gas inlet pipeline (3) are connected with a flow controller (5) and a self-operated control valve (6) with adjustable opening pressure in series, and the self-operated control valve (6) is located on the upstream of the flow controller (5).
2. The dynamic gas distribution device according to claim 1, further comprising a first three-way joint (7), wherein three ports of the first three-way joint (7) are respectively communicated with the gas outlet of the raw gas inlet pipeline (2), the gas outlet of the diluent gas inlet pipeline (3) and the inlet of the mixing chamber (1).
3. The dynamic air distribution device according to claim 1, characterized in that the standard air outlet pipeline (4) is connected with a flow regulating and controlling component in series.
4. A dynamic gas distribution arrangement according to claim 3, characterised in that the flow regulating means comprise a flow regulating valve (8) and a flow meter (9).
5. Dynamic gas distribution arrangement according to claim 1, characterised in that a pressure relief valve (10) is connected to the outlet of the mixing chamber (1).
6. The dynamic gas distribution device according to claim 5, further comprising a pressure relief pipeline (11), wherein an inlet of the pressure relief pipeline (11) is communicated with an outlet of the mixing chamber (1), and the pressure relief valve (10) is connected in series to the pressure relief pipeline (11).
7. The dynamic gas distribution device according to claim 6, further comprising a second three-way joint (12), wherein three ports of the second three-way joint (12) are respectively communicated with the outlet of the mixing chamber (1), the gas inlet of the pressure relief pipeline (11) and the gas inlet of the standard gas outlet pipeline (4).
8. A dynamic gas distribution arrangement according to any one of claims 1-7, characterised by further comprising a feed gas tank (13) and a dilution gas tank (14) connected to the inlet of the feed gas inlet line (2) and the dilution gas inlet line (3), respectively.
9. A dynamic air distribution device according to any of the claims 1-7, characterized by an accumulator (15), which accumulator (15) is used to power the electricity consuming parts of the dynamic air distribution device.
10. The dynamic air distribution device according to claim 9, further comprising a power interface (16), wherein the power interface (16) is used for connecting an external power source, and power is supplied to the power consumption part of the dynamic air distribution device and the storage battery (15) through the external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514167.0U CN212188621U (en) | 2020-04-09 | 2020-04-09 | Dynamic air distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514167.0U CN212188621U (en) | 2020-04-09 | 2020-04-09 | Dynamic air distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212188621U true CN212188621U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020514167.0U Active CN212188621U (en) | 2020-04-09 | 2020-04-09 | Dynamic air distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212188621U (en) |
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2020
- 2020-04-09 CN CN202020514167.0U patent/CN212188621U/en active Active
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