Gas flow control device

Abstract

The utility model discloses a gas flow control device which comprises an air inlet pipe, the air inlet pipe is communicated with an air pump, the air inlet pipe is communicated with a flow adjusting bin through a first sealing ring, a flow adjusting gate is arranged at the upper end of the flow adjusting bin, a flow adjusting button is fixed at the upper end of the flow adjusting gate, and the flow adjusting gate is electrically connected with the flow adjusting button. The right end of the flow adjusting bin communicates with an air outlet pipe through a second sealing ring. According to the utility model, the gas flow is controlled through the flow regulating gate, the flow is divided into three gears, the knife switches with different pores are adopted to stop gas from passing and correspond to high, middle and low gears of flow, meanwhile, the passing gas quantity can be finely adjusted according to the reading of the flowmeter, accurate regulation is carried out, and the flexibility is good.

Description

Technical Field

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

[0002] Gas analysis is an analytical method that uses the different physical and chemical properties of various gases to determine the composition of mixed gases. In order to ensure normal and safe production in industrial production, various industrial gases must be analyzed to understand their composition. When performing gas analysis, it is necessary to use a gas flow control device to control the flow rate of the gas flow in order to meet the flow rate requirements for gas analysis. The gas is analyzed to different degrees at different flow rates. However, when the gas flows in the pipeline, the gas flow control device must be operated. Since the gas flow rate cannot be accurately controlled and the gas flow cannot be displayed, it is inconvenient to control the gas flow, which reduces the effect of gas analysis.

[0003] Chinese patent CN216382756U discloses a gas flow control device. The device includes a housing, a control machine, a battery pack, a motor, a driving gear, a passive gear, an air pipe, a sensor, and a ball valve. The control machine, the battery pack, and the motor are fixed in the housing. The battery pack and the motor are electrically connected to the motor. The housing is rotatably connected with a passive gear. The output shaft of the motor is fixed with a driving gear, and the driving gear meshes with the passive gear. The air pipe is fixed on the outer wall of the housing. A ball valve is provided on the air pipe. The valve stem of the ball valve is fixed with the passive gear. A sensor is installed on the housing. The utility model senses the user through the sensor. When the sensor cannot sense the user, the motor is controlled by the control machine, and the gear is used to automatically close the ball valve on the air pipe, thereby realizing the automatic opening and closing of the gas. However, it cannot display the flow rate and cannot control the gas flow in stages. Based on this, further improvements are needed. Utility Model Content

[0004] The utility model aims to provide a gas flow control device, which has the advantages of flexible adjustment of gas flow and good stability, so as to solve the problems in the above-mentioned background technology that the flow size cannot be displayed and the gas flow cannot be controlled in stages.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas flow control device, comprising an air inlet pipe, which is connected to an air pump, and the air inlet pipe is connected to a flow regulating chamber through a sealing ring 1, a flow regulating gate is provided at the upper end of the flow regulating chamber, a flow regulating button is fixed at the upper end of the flow regulating gate, and the flow regulating button is electrically connected to the flow regulating button, and the right end of the flow regulating chamber is connected to an air outlet pipe through a sealing ring 2.

[0006] The flow regulating gate includes a gear regulating gate, which is slidably connected to the flow regulating chamber. An electromagnet is installed on the upper end of the gear regulating gate, and the electromagnet is fixed on the upper end of the flow regulating chamber. A relay is fixed on the side of the electromagnet, and the relay is electrically connected to the electromagnet and the flow regulating button. A fine-tuning valve is arranged on the right side of the gear regulating gate.

[0007] A flow meter is provided at the upper end of the air outlet pipe.

[0008] Preferably, a multi-layer filter screen is provided inside the flow regulating chamber for filtering impurities in the air, and a confluence port is provided on the right side of the flow regulating chamber for gas diversion.

[0009] Preferably, the fine-tuning valve includes a hydraulic rod, a baffle is fixed to the lower end of the hydraulic rod, the baffle is slidably connected to the flow regulating chamber, a rubber ring is arranged directly below the baffle, and the rubber ring is fixed to the lower inner wall of the flow regulating chamber.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the gas flow control device can display the gas flow, and can adjust the gas flow in stages, and make fine adjustments on this basis, with good flexibility. Specifically: when in use, the air inlet pipe is connected to the air pump, and the gas enters the flow regulating bin through the air inlet pipe. First, it is filtered through a multi-layer filter screen to remove impurities in the gas, avoid the collision of particles in the gas with the pipeline, and reduce pipeline wear. Then, the gas enters the flow regulating gate range through the confluence port. The flow regulating gate is divided into three gears, and gear regulating gates with different pores are used to block the gas. The gear regulating gate is raised and lowered through the cooperation of the electromagnet and the relay, corresponding to high, medium and low flow rates. At the same time, a fine-tuning valve is also provided at the front end of the air outlet pipe, which can fine-tune the amount of gas passing through according to the indication of the flow meter, and make precise adjustments, with good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the flow regulating gate structure of the utility model.

[0015] Explanation of the reference numerals in the figure: 1. Inlet pipe; 2. Sealing ring 1; 3. Flow regulating chamber; 31. Multi-layer filter; 32. Confluence; 4. Flow regulating gate; 41. Gear regulating gate; 42. Electromagnet; 43. Relay; 44. Fine-tuning valve; 441. Hydraulic rod; 442. Baffle; 443. Rubber ring; 5. Flow regulating button; 6. Sealing ring 2; 7. Exit pipe; 71. Flow meter. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-Figure 3 , the utility model provides an embodiment: a gas flow control device, including an air inlet pipe 1, the air inlet pipe 1 is connected to an air pump, the air inlet pipe 1 is connected to a flow regulating bin 3 through a sealing ring 1 2, a multi-layer filter screen 31 is arranged inside the flow regulating bin 3 for filtering impurities in the air, a confluence port 32 is arranged on the right side of the flow regulating bin 3 for gas diversion, a flow regulating gate 4 is arranged on the upper end of the flow regulating bin 3, a flow regulating button 5 is fixed on the upper end of the flow regulating gate 4, and the flow regulating button 5 is electrically connected, the right end of the flow regulating bin 3 is connected to an air outlet pipe 7 through a sealing ring 2 6, and a flow meter 71 is arranged on the upper end of the air outlet pipe 7;

[0018] In combination with the above-mentioned structural features, when the utility model is working, the air intake pipe 1 is connected to the air pump, and the gas enters the flow regulating chamber 3 through the air intake pipe 1. It is first filtered through the multi-layer filter screen 31 to remove impurities in the gas, avoid the collision of particles in the gas with the pipeline, and reduce the wear of the pipeline. At this time, press the adjustment button 5 to control the flow regulating gate 4 to adjust the gas flow size in stages, and fine-tune it on this basis. It has good flexibility. During adjustment, the flow meter 71 can display the flow size in real time, which is convenient for adjustment and has strong practicality.

[0019] See also Figure 1-Figure 3 The flow regulating gate 4 includes a gear regulating gate 41, which is slidably connected to the flow regulating chamber 3. An electromagnet 42 is installed on the upper end of the gear regulating gate 41, and the electromagnet 42 is fixed on the upper end of the flow regulating chamber 3. A relay 43 is fixed on the side of the electromagnet 42. The relay 43 is electrically connected to the electromagnet 42 and the flow regulating button 5. A fine-tuning valve 44 is arranged on the right side of the gear regulating gate 41.

[0020] See also Figure 1-Figure 3The fine-tuning valve 44 includes a hydraulic rod 441, a baffle plate 442 is fixed at the lower end of the hydraulic rod 441, the baffle plate 442 is slidably connected to the flow regulating chamber 3, a rubber ring 443 is arranged directly below the baffle plate 442, and the rubber ring 443 is fixed to the lower inner wall of the flow regulating chamber 3;

[0021] In combination with the above-mentioned structural features, when the utility model is working, the flow regulating gate 4 is divided into three gears, and the gear regulating gate 41 with different pores is used to block the gas, and the rise and fall of the gear regulating gate 41 is realized through the cooperation of the electromagnet 42 and the relay 43, corresponding to the high, medium and low flow rates. At the same time, a fine-tuning valve 44 is also provided at the front end of the outlet pipe 7, which can fine-tune the amount of gas passing through according to the indication of the flow meter 71 for precise adjustment. During adjustment, the hydraulic rod 441 is used to drive the baffle plate 442 to move up and down to adjust the air flow outlet range, which has good flexibility.

[0022] Working principle: When the utility model is in use, the air inlet pipe 1 is connected to the air pump, and the gas enters the flow regulating chamber 3 through the air inlet pipe 1. It is first filtered through the multi-layer filter 31 to filter out impurities in the gas, avoid the collision of particles in the gas with the pipeline, and reduce the wear of the pipeline. At this time, the adjustment button 5 is pressed to control the flow regulating gate 4 to adjust the gas flow rate in stages, and fine-tune it on this basis. It has good flexibility. During adjustment, the flow meter 71 can display the flow rate in real time, which is convenient for adjustment and has strong practicality.

[0023] Among them, the flow regulating gate 4 is divided into three gears, and a gear regulating gate 41 with different pores is used to block the gas, and the rise and fall of the gear regulating gate 41 is realized through the cooperation of the electromagnet 42 and the relay 43, corresponding to the high, medium and low flow rates. At the same time, a fine-tuning valve 44 is also provided at the front end of the outlet pipe 7, which can fine-tune the amount of gas passing through according to the indication of the flow meter 71 for precise adjustment. During adjustment, the hydraulic rod 441 is used to drive the baffle plate 442 to move up and down to adjust the air flow outlet range, which has good flexibility.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A gas flow control device, characterized in that: The invention comprises an air inlet pipe (1), the air inlet pipe (1) is connected to an air pump, the air inlet pipe (1) is connected to a flow regulating chamber (3) through a sealing ring 1 (2), a flow regulating gate (4) is arranged at the upper end of the flow regulating chamber (3), a flow regulating button (5) is fixed at the upper end of the flow regulating gate (4), and the flow regulating button (5) is electrically connected to the flow regulating button (5), and the right end of the flow regulating chamber (3) is connected to an air outlet pipe (7) through a sealing ring 2 (6); The flow regulating gate (4) comprises a gear regulating gate (41), the gear regulating gate (41) is slidably connected to the flow regulating chamber (3), an electromagnet (42) is installed on the upper end of the gear regulating gate (41), the electromagnet (42) is fixed on the upper end of the flow regulating chamber (3), a relay (43) is fixed on the side of the electromagnet (42), the relay (43) is electrically connected to the electromagnet (42) and the flow regulating button (5), and a fine-tuning valve (44) is arranged on the right side of the gear regulating gate (41); A flow meter (71) is provided at the upper end of the air outlet pipe (7).

2. A gas flow control device according to claim 1, characterized in that: The flow regulating chamber (3) is provided with a multi-layer filter screen (31) inside for filtering impurities in the air, and a confluence port (32) is provided on the right side of the flow regulating chamber (3) for guiding gas flow.

3. A gas flow control device according to claim 1, characterized in that: The fine-tuning valve (44) comprises a hydraulic rod (441), a baffle plate (442) being fixed at the lower end of the hydraulic rod (441), the baffle plate (442) being slidably connected to the flow regulating chamber (3), a rubber ring (443) being arranged directly below the baffle plate (442), and the rubber ring (443) being fixed to the lower inner wall of the flow regulating chamber (3).

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