Gas flow control method and device convenient to control

Abstract

The invention discloses a gas flow control method and device convenient to control, and relates to the technical field of flow control, and the method comprises the following steps: S1, determining numerical values: firstly, determining gas required to be used and gas pressure numerical values required under different conditions during use according to different use requirements; and S2, data setting, wherein corresponding data are transmitted into a controller, and then a flow valve body is controlled through the controller. According to the flow control valve, the interception part is arranged, so that the flow control effect is stable in the using process, when the flow is abnormal due to the temperature, interception can be conducted in time, then control is conducted, meanwhile, gas exhausted during pressure relief and gas exhaust can be recycled, waste is avoided, and the flow control valve is suitable for popularization and application. And the valve is opened for circulation after the internal air pressure and the air pressure at the conveying position are controlled to be consistent, so that the use effect is better, and the situation that the receiving position is impacted due to different air pressures or the use is influenced due to insufficient conveyed air is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of flow control, and in particular to a conveniently controlled gas flow control method and device. Background Art

[0002] Flow control refers to the process of regulating and managing the flow rate and flow size of fluids (such as gases, liquids, etc.) in pipelines, channels or systems. In industrial production, flow control is crucial. For example, in the chemical industry, precise control of the flow of various raw materials can ensure the smooth progress of chemical reactions, improve product quality and production efficiency. By installing flow meters, regulating valves and other equipment, the flow of fluids can be monitored and adjusted in real time. Natural gas pressure is greatly affected by temperature. When the temperature decreases, the natural gas pressure will decrease. Conversely, when the temperature rises, the natural gas pressure will increase.

[0003] Existing related technologies often have the following defects: common faults of gas pipelines include blockage, freezing, water accumulation and failure of auxiliary equipment, which will cause the gas pressure and flow to drop or fluctuate, affecting safe operation. It is necessary to detect the internal gas pressure and flow. The existing flow control methods mostly directly use flow control valves to adjust, which cannot ensure the stability of gas flow and are prone to sudden increases or decreases, affecting gas transportation and subsequent use. Summary of the invention

[0004] The purpose of this application is to provide a convenient gas flow control method and device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present application provides the following technical solution: a convenient gas flow control method, the method is as follows:

[0006] S1. Determine the value: first confirm the gas to be used according to different usage needs, as well as the gas pressure value required in different situations;

[0007] S2, data setting: transmit the corresponding data to the controller, and then control the flow valve body through the controller;

[0008] S3, flow detection: the flow valve body is opened, the gas is transported in the pipeline through the source, and then transported to the receiving source for circulation. During the process of gas transportation in the pipeline, the detector will detect the gas pressure inside the pipeline;

[0009] S4. Air pressure regulation: The detector transmits the detection result of the gas pressure in the pipeline to the controller, which compares the relevant information with the original relevant data. When the air pressure changes, the two valves will be closed, and then the first valve will be controlled to rotate and open a certain angle. The gas will gradually pass through the first valve into the pipeline connected to the second valve, and then the air pressure value in the pipeline will be measured. When the air pressure is too high, the vacuum pump will start exhausting to reduce the air pressure in the pipeline, and then the exhausted gas will return to the delivery source through the reflux pipeline. When the air pressure is too low, the vacuum pump will start to increase the air pressure in the pipeline, and then compare it with the corresponding data;

[0010] S5. Adjustment completed: When the gas pressure values ​​required on both sides of the second valve match each other, the controller will open the second valve to allow it to continue to flow.

[0011] Preferably, in S4, the controller is electrically connected to the flow valve body, and then electrically drives the flow valve body to perform a closing operation.

[0012] Preferably, in S4, the delivery source and the vacuum pump are connected via a return pipe, and the return pipe is fixedly connected to one side of the bottom of the delivery source.

[0013] Preferably, in S1, the gas pressure value is in a range of 1% to 3%.

[0014] Preferably, it includes a gas delivery source for delivering gas and a gas receiving source for receiving gas, and a retaining portion fixedly connected between the gas delivery source and the gas receiving source, a pump is fixedly connected to the retaining portion, and one end of the pump is connected to the gas delivery source.

[0015] Preferably, the interception portion comprises an A electrically-controlled valve, a B electrically-controlled valve and a delivery pipe fixedly connected between the A electrically-controlled valve and the B electrically-controlled valve, and an air pressure detector is fixedly connected to the delivery pipe.

[0016] Preferably, one end of the pump is fixedly connected to a mounting pipe, and the other end of the mounting pipe is fixedly connected to the gas delivery source.

[0017] Preferably, the pump is fixedly connected to the delivery pipe, and a control unit is also fixedly connected to the delivery pipe, and the control unit is electrically connected to the pump and the air pressure detector.

[0018] In summary, the technical effects and advantages of the present invention are as follows:

[0019] The present invention has a reasonable structure, and the interception part is set to have a stable flow control effect during use. When the flow is abnormal due to the high or low temperature, it can be intercepted in time and then controlled. At the same time, the gas discharged during the pressure relief and exhaust can be recycled to avoid waste. The internal air pressure and the air pressure at the delivery point are controlled to a matching air pressure before the valve is opened for circulation, so that the use effect is better and the use is avoided due to the impact on the receiving point or insufficient delivery gas caused by different air pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a flow chart of the method of using the present invention;

[0022] Figure 2 is a system diagram of the present invention;

[0023] Figure 3 It is a system schematic diagram of the interception part in the present invention.

[0024] In the figure: 1. gas delivery source; 2. gas receiving source; 3. interception part; 4. A electric-controlled valve; 5. B electric-controlled valve; 6. delivery pipe; 7. air pressure detector; 8. pump; 9. installation pipe; 10. control unit. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Reference Figure 1-3 A convenient gas flow control method is shown, and the method is as follows:

[0027] S1. Determine the value: first confirm the gas to be used according to different usage needs, as well as the gas pressure value required in different situations. The gas pressure value is in the range of 1% to 3%;

[0028] S2, data setting: transmit the corresponding data to the controller, and then control the flow valve body through the controller;

[0029] S3, flow detection: the flow valve body is opened, the gas is transported in the pipeline through the source, and then transported to the receiving source for circulation. During the process of gas transportation in the pipeline, the detector will detect the gas pressure inside the pipeline;

[0030] S4. Air pressure regulation: The detector transmits the detection result of the gas pressure in the pipeline to the controller, and the controller compares the relevant information with the original relevant data. When the air pressure changes, the two valves will be closed. The controller connects the flow valve body electrically, and then drives the flow valve body to close by electric drive. Then the first valve is controlled to rotate and open a certain angle. The gas will gradually pass through the first valve into the pipeline connected to the second valve, and then the air pressure value in the pipeline is measured. When the air pressure is too high, the vacuum pump will start exhaust to reduce the air pressure in the pipeline. Then the exhausted gas will return to the delivery source through the return pipeline. When the air pressure is too low, the vacuum pump will start to increase the air pressure in the pipeline, and then compare it with the corresponding data. The delivery source and the vacuum pump are connected through the return pipeline, and the return pipeline is fixedly connected to the bottom side of the delivery source. The internal air pressure is controlled to match the air pressure at the delivery point before the valve is opened for circulation, so that the use effect is better, avoiding the impact on the receiving point due to different air pressure or insufficient delivery gas affecting the use;

[0031] S5. Adjustment completed: When the gas pressure values ​​required on both sides of the second valve match each other, the controller will open the second valve to allow it to continue to flow.

[0032] The invention comprises a gas delivery source 1 for delivering gas and a gas receiving source 2 for receiving gas, and a retaining part 3 fixedly connected between the gas delivery source 1 and the gas receiving source 2, a pump 8 is fixedly connected to the retaining part 3, and one end of the pump 8 is communicated with the gas delivery source 1, the retaining part 3 comprises an A electric-controlled valve 4, a B electric-controlled valve 5 and a delivery pipe 6 fixedly connected between the A electric-controlled valve 4 and the B electric-controlled valve 5, each of the delivery pipes 6 is fixedly connected with an air pressure detector 7, the number of the air pressure detectors 7 is two, the other of which is fixedly connected to the connection between the gas receiving source 2 and the B electric-controlled valve 5, one end of the pump 8 is fixedly connected to a mounting pipe 9, and the other end of the mounting pipe 9 is connected to the gas delivery source 1. The delivery source 1 is fixedly connected, the pump 8 is fixedly connected to the delivery pipe 6, and the delivery pipe 6 is also fixedly connected with a control unit 10, the control unit 10 is electrically connected to the pump 8 and the air pressure detector 7, before use, first calculate the specific flow required for delivery according to the gas to be delivered and the demand wave of the gas receiving source 2, and then input the relevant flow into the control unit 10, the control unit 10 will record the flow, when in use, the gas in the gas delivery source 1 is delivered to the gas receiving source 2 through the delivery pipe 6, when the gas passes through the delivery pipe 6, the air pressure detector 7 will detect the gas pressure inside the delivery pipe 6, and transmit the detection result to the control unit 10, the control unit 10 The pressure value will be compared with the original specific flow required. When the comparison is abnormal, the A electric-controlled valve 4 and the B electric-controlled valve 5 will be immediately started to close the delivery pipe 6. At the same time, the A electric-controlled valve 4 will be slowly turned to open, so that the gas in the gas delivery source 1 can flow into the delivery pipe 6. At this time, the gas will be blocked by the B electric-controlled valve 5, and the air pressure detector 7 will continue to detect the gas in the delivery pipe 6. At this time, after the gas in the gas delivery source 1 enters the delivery pipe 6, the gas pressures in the gas delivery source 1 and the delivery pipe 6 are the same. Then the air pressure detector 7 will detect the gas pressure in the delivery pipe 6 again. When the air pressure is too high due to excessive temperature, the air pressure detector 7 will detect the air pressure in the delivery pipe 6 again. The control unit 10 controls the pump 8 to start exhausting and relieving the pressure of the gas in the delivery pipe 6, and at the same time, the exhausted gas is delivered to the gas delivery source 1 again through the installation pipe 9; when the air pressure is too low due to low temperature, the control unit 10 controls the pump 8 to start pressurizing the gas in the delivery pipe 6, so that the internal pressure increases to meet the required flow rate, and then the second air pressure detector 7 detects the air pressure at the gas receiving source 2. When the air pressure at the delivery pipe 6 and the gas receiving source 2 are similar, the B electric control valve 5 will open to reconnect the delivery pipe 6 and the gas receiving source 2, and the gas in the gas delivery source 1 will flow stably at the air pressure that matches the gas receiving source 2.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A convenient gas flow control method, characterized in that , the method is as follows: S1. Determine the value: first confirm the gas to be used according to different usage needs, as well as the gas pressure value required in different situations; S2, data setting: transmit the corresponding data to the controller, and then control the flow valve body through the controller; S3, flow detection: the flow valve body is opened, the gas is transported in the pipeline through the source, and then transported to the receiving source for circulation. During the process of gas transportation in the pipeline, the detector will detect the gas pressure inside the pipeline; S4. Air pressure regulation: The detector transmits the detection result of the gas pressure in the pipeline to the controller, which compares the relevant information with the original relevant data. When the air pressure changes, the two valves will be closed, and then the first valve will be controlled to rotate and open a certain angle. The gas will gradually pass through the first valve into the pipeline connected to the second valve, and then the air pressure value in the pipeline will be measured. When the air pressure is too high, the vacuum pump will start exhausting to reduce the air pressure in the pipeline, and then the exhausted gas will return to the delivery source through the reflux pipeline. When the air pressure is too low, the vacuum pump will start to increase the air pressure in the pipeline, and then compare it with the corresponding data; S5. Adjustment completed: When the gas pressure values ​​required on both sides of the second valve match each other, the controller will open the second valve to allow it to continue to flow.

2. A convenient gas flow control method according to claim 1, characterized in that: In S4, the controller electrically connects the flow valve body and then electrically drives the flow valve body to perform a closing operation.

3. A convenient gas flow control method according to claim 1, characterized in that: In S4, the delivery source and the vacuum pump are connected via a return pipe, and the return pipe is fixedly connected to one side of the bottom of the delivery source.

4. A convenient gas flow control method according to claim 1, characterized in that: In S1, the gas pressure value is in a range of 1% to 3%.

5. A conveniently controlled gas flow control device, characterized in that: The invention comprises a gas delivery source (1) for delivering gas and a gas receiving source (2) for receiving gas, and a retaining portion (3) fixedly connected between the gas delivery source (1) and the gas receiving source (2), wherein a pump (8) is fixedly connected to the retaining portion (3), and one end of the pump (8) is connected to the gas delivery source (1).

6. A conveniently controlled gas flow control device according to claim 5, characterized in that: The interception portion (3) comprises an A electrically controlled valve (4), a B electrically controlled valve (5) and a delivery pipe (6) fixedly connected between the A electrically controlled valve (4) and the B electrically controlled valve (5), and an air pressure detector (7) is fixedly connected to the delivery pipe (6).

7. A conveniently controlled gas flow control device according to claim 5, characterized in that: One end of the pump (8) is fixedly connected to a mounting tube (9), and the other end of the mounting tube (9) is fixedly connected to the gas delivery source (1). The pump (8) is fixedly connected to the delivery tube (6), and the delivery tube (6) is also fixedly connected to a control unit (10). The control unit (10) is electrically connected to the pump (8) and the air pressure detector (7).

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