Gas flow control box
By designing a gas flow control box integrating mass flow meter, solenoid shutoff valve, check valve, power supply and control panel, the existing gas flow controller has problems such as poor flow control accuracy, large impact on pressure fluctuations and inconvenient use, and the accurate measurement and convenient control of gas flow are achieved.
Patent Information
- Application Number
- CN202421940305.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing gas flow controllers have problems such as poor flow control accuracy, heavy impact on pressure fluctuations, and inconvenient use.
A gas flow control box integrating mass flow meter, solenoid shutoff valve, check valve, power supply and control panel is designed. By integrating these devices into a portable housing, precise measurement and control of gas flow is achieved.
Accurate measurement and convenient control of gas flow rate are realized, the box is small and easy to move, simple to operate and easy to use, avoiding the problem of inconvenient use of flow controllers in the prior art.
Smart Images
Figure CN222896380U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of flow control boxes, and in particular relates to a gas flow control box. Background Art
[0002] The gas flow control box is a portable instrument that uses a mass flow meter as the core device to accurately control the gas flow. It is mainly used in the research and development or testing of laboratory carrier gas control, gas flow calibration and other fields.
[0003] In the prior art, rotor flowmeters or split-type mass flow controllers are commonly used to control flow. Rotor flowmeters rely on floats to control flow and visually indicate the flow. They have the disadvantages of poor flow control accuracy and being greatly affected by pressure fluctuations. Split-type mass flow controllers separate the flowmeter from the controller, making them extremely inconvenient to use and having the characteristics of being unportable and easily damaged. Utility Model Content
[0004] The utility model aims to provide a gas flow control box to solve the problem that the flow meter in the prior art is inconvenient to use.
[0005] To this end, the utility model provides a gas flow control box, comprising: a shell, a one-way valve, a flow meter and a stop valve are arranged in the shell, a gas inlet and a gas outlet are arranged on the shell, the gas inlet is connected to the one-way valve through a pipeline, the one-way valve is connected to the flow meter through a pipeline, the flow meter is connected to the stop valve through a pipeline, and the stop valve is connected to the gas outlet through a pipeline.
[0006] Preferably, a control panel is provided on the housing, and the control panel is electrically connected to the flow meter. The control panel is used to set and display the gas flow.
[0007] Preferably, a stop valve switch is provided on the housing, and the stop valve switch is electrically connected to the stop valve. The stop valve switch is used to control the opening and closing of the stop valve, thereby controlling the on-off of the gas circuit.
[0008] Preferably, a power supply is provided in the housing, and the power supply is electrically connected to the flow meter and the stop valve.
[0009] Preferably, a power switch is provided on the housing, and the power switch is electrically connected to the power supply.
[0010] Preferably, the diameter of the gas inlet is in the range of 2-20 mm.
[0011] Preferably, the diameter of the gas outlet is in the range of 2-20 mm.
[0012] Preferably, the flow meter is a mass flow meter.
[0013] Preferably, a handle is provided on the top of the shell.
[0014] Preferably, support feet are provided at the bottom of the shell.
[0015] Beneficial effects:
[0016] 1. The utility model provides a gas flow control box, which integrates a mass flow meter, an electromagnetic stop valve, a one-way valve, a power supply and a control panel. The gas flow rate can be accurately measured by connecting the pipeline to be measured with the gas inlet and the gas outlet. The gas flow control box in the utility model is small in size, easy to move, simple to operate and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a front structural schematic diagram of Example 1 of a gas flow control box provided by the utility model.
[0019] Figure 2 This is a schematic diagram of the back structure of Example 1 of a gas flow control box provided by the utility model.
[0020] Figure 3 This is a schematic diagram of the internal structure of Example 1 of a gas flow control box provided by the utility model.
[0021] In the figure, 1-housing, 2-check valve, 3-flow meter, 4-stop valve, 5-gas inlet, 6-gas outlet, 7-control panel, 8-stop valve switch, 9-power supply, 10-power switch, 11-handle, and 12-support foot. DETAILED DESCRIPTION
[0022] The content of the present invention can be more easily understood by referring to the following detailed description of the preferred implementation method of the present invention and the included embodiments. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs. When there is a conflict, the definition in this specification shall prevail.
[0023] Embodiment 1:
[0024] Provides such as Figure 1-3A gas flow control box shown in the figure comprises: a housing 1, a one-way valve 2, a flowmeter 3 and a stop valve 4 are arranged in the housing 1, a gas inlet 5 and a gas outlet 6 are arranged on the housing 1, the gas inlet 5 is connected to the one-way valve 2 through a pipeline, the one-way valve 2 is connected to the flowmeter 3 through a pipeline, the flowmeter 3 is connected to the stop valve 4 through a pipeline, and the stop valve 4 is connected to the gas outlet 6 through a pipeline. A control panel 7 is arranged on the housing 1, the control panel 7 is electrically connected to the flowmeter 3, and the control panel 7 is used to set and display the gas flow. A stop valve switch 8 is arranged on the housing 1, and the stop valve switch 8 is electrically connected to the stop valve 4. The stop valve switch 8 is used to control the opening and closing of the stop valve 4, thereby controlling the on-off of the gas path. A power supply 9 is arranged in the housing 1, and the power supply 9 is electrically connected to the flowmeter 3 and the stop valve 4. A power switch 10 is arranged on the housing 1, and the power switch 10 is electrically connected to the power supply 9, and the control panel 7 is electrically connected to the power supply 9. The diameter of the gas inlet 5 is 6 mm. The diameter range of the gas outlet 6 is 6 mm. A handle 11 is provided on the top of the housing 1. Support legs 12 are provided on the bottom of the housing 1, and there are four support legs 12 to firmly support the housing 1. The flow meter 3 in this embodiment is a mass flow meter 3, and the stop valve 4 is an electromagnetic stop valve.
[0025] Working principle: The pipeline to be tested is connected to the gas inlet 5 and the gas outlet 6 respectively. The gas enters from the gas inlet 5, passes through the one-way valve 2 to make the gas flow in one direction, and enters the mass flow meter 3. The mass flow meter 3 detects the gas flow rate and displays the gas flow value on the control panel 7. Then the gas flows out from the gas outlet 6 through the stop valve 4.
Claims
1. A gas flow control box, characterized in that: The invention comprises: a shell, a one-way valve, a flow meter and a stop valve are arranged in the shell, a gas inlet and a gas outlet are arranged on the shell, the gas inlet is connected to the one-way valve through a pipeline, the one-way valve is connected to the flow meter through a pipeline, the flow meter is connected to the stop valve through a pipeline, and the stop valve is connected to the gas outlet through a pipeline.
2. A gas flow control box according to claim 1, characterized in that: The shell is provided with a control panel, and the control panel is electrically connected to the flow meter.
3. A gas flow control box according to claim 1, characterized in that: The housing is provided with a stop valve switch, and the stop valve switch is electrically connected to the stop valve.
4. A gas flow control box according to claim 1, characterized in that: A power source is arranged in the shell, and the power source is electrically connected to the flow meter and the stop valve.
5. A gas flow control box according to claim 4, characterized in that: The housing is provided with a power switch, and the power switch is electrically connected to the power source.
6. A gas flow control box according to claim 1, characterized in that: The diameter of the gas inlet is in the range of 2-20 mm.
7. A gas flow control box according to claim 1, characterized in that: The diameter of the gas outlet is in the range of 2-20 mm.
8. A gas flow control box according to claim 1, characterized in that: The flow meter is a mass flow meter.
9. A gas flow control box according to claim 1, characterized in that: A handle is arranged on the top of the shell.
10. A gas flow control box according to claim 1, characterized in that: The bottom of the shell is provided with supporting feet.