Gas flow control mixing control device

Abstract

The utility model relates to a gas flow control and mixing control device which comprises rotor flow meters, first one-way valves, a conical spiral multi-way valve and a forward and reverse gas mixing valve, and output ports of the rotor flow meters are communicated with gas input ports of the conical spiral multi-way valve through the first one-way valves in a one-to-one correspondence mode. The conical spiral multi-way valve is used for mixing gas flowing in through at least two rotor flow meters, and a mixed gas output port of the conical spiral multi-way valve is communicated with the positive and negative gas mixing valve. The double-section type design is adopted, that is, the conical spiral multi-way is linked with the positive and negative gas mixing valve, more uniform gas mixing is ensured, the conical spiral multi-way adopts the conical design to enable gas to form a micro-positive pressure acceleration effect in a pipeline, and the flow speed is prevented from being influenced by the too long pipeline. Gas mixing is carried out through a double-section type structure, so that uniform gas mixing is ensured, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas mixing technology, and in particular to a gas flow control mixing control device. Background Technology

[0002] Combustible gases are typically mixed with air or other combustion-supporting gases using a mixing device. Currently, most mixing devices employ a single-stage mixing structure, which falls into two categories. One type is various electrical automatic mixing devices; however, electrical components have their own ignition connections, which could directly ignite the combustible gas, posing a safety hazard. The other type uses a simple rotor flow meter with a T-junction for mixing, but this structure can result in uneven mixing, potentially leading to gas deflagration and posing a safety risk. Utility Model Content

[0003] Therefore, it is necessary to provide a gas flow control and mixing control device that provides more uniform gas mixing and better safety.

[0004] In a first aspect, this application provides a gas flow control and mixing control device, comprising: a rotor flow meter, a first check valve, a conical spiral multi-port valve, and a forward and reverse mixing valve. The number of rotor flow meters and the first check valve is at least two. Each rotor flow meter has a gas inlet and a gas outlet. The conical spiral multi-port valve has a mixed gas outlet and at least two gas inlets. The outlet of each rotor flow meter is connected to the gas inlet of the conical spiral multi-port valve through each of the first check valves. The conical spiral multi-port valve is used to mix the gas flowing in through at least two rotor flow meters. The mixed gas outlet of the conical spiral multi-port valve is connected to the forward and reverse mixing valve.

[0005] In one embodiment, the conical spiral multi-port is a conical spiral tee or a conical spiral four-port, wherein the conical spiral tee has two gas inlets and the conical spiral four-port has three gas inlets.

[0006] In one embodiment, the gas flow control mixing control device further includes a second one-way valve, and the mixed gas output port of the conical spiral multi-port is connected to the positive and negative mixing valve through the second one-way valve.

[0007] In one embodiment, the gas flow control mixing control device further includes a gas mass flow meter connected between the first one-way valve and the gas inlet of the conical spiral multi-port.

[0008] In one embodiment, the gas flow control mixing control device further includes a signal receiving line disposed adjacent to the gas mass flow meter.

[0009] In one embodiment, the gas flow control mixing control device further includes a PLC monitor, which is electrically connected to the signal receiving line.

[0010] In one embodiment, the gas flow control mixing control device further includes a cabinet, in which the rotor flow meter, the first one-way valve, the conical spiral multi-way valve, the forward and reverse mixing valve, and the PLC monitor are all housed.

[0011] In one embodiment, the positive and negative mixing valve is also connected to an outlet pipe.

[0012] In one embodiment, the cabinet is a cuboid cabinet.

[0013] In one embodiment, two positive and negative mixing valves are provided, and the two positive and negative mixing valves are connected in series.

[0014] In one embodiment, the rotor flowmeter is an electric rotor flowmeter.

[0015] The aforementioned gas flow control and mixing device employs a two-stage design, where a conical spiral multi-port valve is linked to a forward and reverse mixing valve to ensure more uniform gas mixing. The conical design of the spiral multi-port valve creates a slight positive pressure within the pipeline, accelerating the flow and preventing flow rate issues caused by excessive pipeline length. It also ensures that the gas does not become stuck in the next stage of the forward and reverse mixing valve due to insufficient pressure. This application uses a conical spiral multi-port valve for gas mixing, allowing the gas to rotate and achieve the desired mixing effect. The subsequent forward and reverse mixing valves maintain a slight positive pressure, ensuring gas flow rate and rapid gas exchange in the production environment. The two-stage structure ensures uniform gas mixing and reduces safety hazards. Because the mixing is more uniform, this application avoids gas explosions and offers better safety. In other preferred embodiments, a rotor flow meter and a PLC monitor are used for joint monitoring to ensure safe gas usage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gas flow control and mixing control device according to an embodiment of the present invention. Detailed Implementation

[0017] To facilitate understanding of this utility model and to make the aforementioned objects, features, and advantages of this utility model more apparent, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model, and preferred embodiments of this utility model are shown in the accompanying drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model. This utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model; therefore, this utility model is not limited to the specific embodiments disclosed below. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. In the description of this utility model, "a number" means at least one, such as one, two, etc., unless otherwise explicitly specified. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

[0018] In the first aspect, this application provides a gas flow control and mixing control device, please refer to... Figure 1The gas flow control and mixing device includes: a rotor flowmeter 1, a first one-way valve 2, a conical spiral multi-port 3, and a forward and reverse mixing valve 5. The rotor flowmeter 1 and the first one-way valve 2 are at least two in number. Each rotor flowmeter 1 has a gas inlet and a gas outlet. The gas inlet of the rotor flowmeter 1 is used to connect to an external gas, such as a combustible gas or an oxidizing gas. The gas outlet of the rotor flowmeter 1 is connected to the conical spiral multi-port 3 through the first one-way valve 2. This application uses the conical spiral multi-port 3 to mix combustible gas and oxidizing gas. The conical spiral multi-port 3 has a corresponding mixed gas outlet and at least two gas inlets. The outlets of each rotor flowmeter 1 are connected one-to-one to the gas inlets of the conical spiral multi-port 3 through the first one-way valves 2. The conical spiral multi-port 3 is used to mix the gas flowing in through at least two rotor flowmeters 1. The mixed gas outlet of the conical spiral multi-port 3 is connected to the forward and reverse mixing valve 5.

[0019] In this application, the conical spiral multi-way is a conical spiral tee or a conical spiral four-way, wherein the conical spiral tee has two gas inlets, and the conical spiral four-way has three gas inlets. For example Figure 1 This refers to the case where a conical spiral multi-way is converted into a conical spiral four-way. In other words, the conical spiral four-way has three corresponding gas inlets, facilitating gas mixing.

[0020] The aforementioned gas flow control and mixing device adopts a two-stage design, where the conical spiral multi-port 3 is linked to the forward and reverse mixing valve 5 to ensure more uniform gas mixing. The conical design of the spiral multi-port 3 is intended to create a slight positive pressure acceleration effect within the pipeline, preventing flow rate issues caused by excessive pipeline length. Simultaneously, it ensures that the gas will not be unable to advance due to insufficient pressure in the next stage, the forward and reverse mixing valve 5. This application uses the conical spiral multi-port 3 for gas mixing, allowing the gas to rotate on its own to achieve the mixing effect. The subsequent forward and reverse mixing valve 5 can achieve a slight positive pressure, thereby ensuring gas flow rate and rapid gas exchange in the production environment. The two-stage structure ensures uniform gas mixing and reduces safety hazards. Because the gas mixing is more uniform, this application avoids gas explosions and offers better safety. In other preferred embodiments, a rotor flow meter and a PLC monitor are used for joint monitoring to ensure the safety of the gas usage process. It should be understood that the structure of the conical spiral multi-way is not limited to the structure of the conical spiral four-way, but is equally applicable to tees or other multi-way systems.

[0021] In one embodiment, the gas flow control mixing control device further includes a second one-way valve 4, through which the mixed gas output port of the conical spiral multi-port 3 is connected to the forward and reverse mixing valve 5. Thus, by providing the second one-way valve, backflow of the mixed gas is prevented.

[0022] In one embodiment, the gas flow control mixing control device further includes a gas mass flow meter 6, which is connected between the first one-way valve 2 and the gas inlet of the conical spiral multi-port 3. That is, a gas mass flow meter is also connected between the first one-way valve and the conical spiral multi-port to accurately measure the gas flow rate.

[0023] In one embodiment, the gas flow control mixing control device further includes a signal receiving line 8, which is disposed adjacent to the gas mass flow meter. The signal receiving line can transmit the flow data measured by the gas mass flow meter to the control system or data recording device in real time. This allows operators to monitor the gas flow in real time, ensuring the accuracy and stability of the mixing process. By installing the signal receiving line, the flow data measured by the gas mass flow meter can be transmitted to the control system in real time. The control system uses this data to precisely control the gas mixing process, ensuring that the ratio and flow rate of the mixed gas meet process requirements. Simultaneously, through remote monitoring and fault early warning functions, operators can promptly detect and handle abnormal situations, ensuring the stability and safety of the gas mixing process.

[0024] In one embodiment, the gas flow control and mixing control device further includes a PLC monitor 7, which is electrically connected to the signal receiving line 8. Thus, the PLC monitor facilitates overall control and monitoring.

[0025] In one embodiment, the gas flow control and mixing control device further includes a cabinet 9, in which the rotor flowmeter 1, the first one-way valve 2, the conical spiral multi-port valve 3, the forward and reverse mixing valve 5, and the PLC monitor 7 are all housed. For example, the cabinet is a rectangular box. The cabinet serves as overall support and installation.

[0026] In one embodiment, the forward and reverse mixing valve 5 is also connected to an outlet pipe 5. This facilitates the introduction of gas into the production environment through the outlet pipe. For example, the first half of the outlet pipe has an internal spiral structure, which also rotates and accelerates the airflow, ensuring that the gas mixes during movement.

[0027] In one embodiment, two forward and reverse mixing valves are provided, and the two valves are connected in series. The first half of the valve is dedicated to mixing, while the second half is used for gas acceleration. Furthermore, the two valves constitute a redundant design. When one valve fails, the other can take over, ensuring the continuity and stability of the gas mixing process. This redundancy design improves the overall reliability of the system. Moreover, providing two valves offers more flexible control. For example, when adjusting the gas mixing ratio, more precise control can be achieved by adjusting the opening of both valves. This flexibility helps meet the needs of different process conditions.

[0028] In one embodiment, the rotor flow meter is an electric rotor flow meter. For example, the PLC monitor is also electrically connected to the electric rotor flow meter. As another example, the PLC monitor is also electrically connected to the forward and reverse mixing valves. Each valve is controlled by the PLC monitor, improving the overall control effect.

[0029] The aforementioned gas flow control and mixing device employs a two-stage design, where a conical spiral multi-port valve is linked to a forward and reverse mixing valve to ensure more uniform gas mixing. The conical design of the spiral multi-port valve creates a slight positive pressure within the pipeline, accelerating the flow and preventing flow rate issues caused by excessive pipeline length. It also ensures that the gas does not become stuck in the next stage of the forward and reverse mixing valve due to insufficient pressure. This application uses a conical spiral multi-port valve for gas mixing, allowing the gas to rotate and achieve the desired mixing effect. The subsequent forward and reverse mixing valves maintain a slight positive pressure, ensuring gas flow rate and rapid gas exchange in the production environment. The two-stage structure ensures uniform gas mixing and reduces safety hazards. Because the mixing is more uniform, this application avoids gas explosions and offers better safety. In other preferred embodiments, a rotor flow meter and a PLC monitor are used for joint monitoring to ensure safe gas usage.

[0030] This application employs a two-stage design, with a conical spiral four-way valve linked to a square valve to ensure more uniform gas mixing. The device primarily regulates gas flow through a rotor flow meter 1, then the gas enters the conical spiral four-way valve 3 via a gas pipe, first check valve 2, and gas mass flow meter 6 for mixing; it then passes through a gas pipe connected to a second check valve 4 to the forward and reverse mixing valve 5 for secondary mixing; finally, it exits through the outlet pipe 10 into the production environment. The PLC monitor 7, signal receiving line 8, and gas mass flow meter 6 are mainly used to monitor gas consumption throughout the production process and to provide alarm monitoring for sudden, drastic gas fluctuations. The conical design of the spiral four-way valve in this application creates a slight positive pressure acceleration effect within the pipeline, preventing flow rate from being affected by excessive pipeline length. Simultaneously, it ensures that the gas does not become unable to advance in the next stage of the forward and reverse mixing valve due to insufficient pressure. This application uses a PLC monitor to control the gas flow and record the total usage. It also features a gas fluctuation range; if the fluctuation exceeds this range, an automatic alarm will sound. This application uses a conical spiral multi-way valve (conical spiral tee or conical spiral four-way valve) to rapidly mix the gas through its structure. It employs forward and reverse mixing valves; the first half is dedicated to mixing, and the second half is for gas acceleration. A multi-node check valve installation, with separate first and second check valves, effectively prevents gas backflow and backpressure, ensuring unobstructed flow throughout. The first half of the outlet pipe has an internal spiral structure, which also accelerates the gas flow, ensuring mixing during movement.

[0031] This application effectively improves gas mixing efficiency while ensuring the accuracy of gas flow. Furthermore, gas monitoring ensures the accuracy of data during production. This simplifies and simplifies operation, effectively preventing safety accidents such as deflagration.

[0032] This application employs a two-stage gas mixing structure to ensure uniform gas mixing and reduce safety hazards. It utilizes a rotor flow meter and a PLC monitor for joint monitoring, ensuring safe gas usage. A conical spiral four-way valve is used for mixing, allowing the gas to rotate and achieve the desired mixing effect. Positive and negative mixing valves are used to create a slight positive pressure, ensuring gas flow rate and rapid gas exchange in the growth environment. This device is typically used for mixing various combustible gases with inert gases. Therefore, uneven mixing can lead to deflagration. This device employs a two-stage mixing structure design to ensure complete gas mixing and guarantee production safety. It also features a two-stage gas monitoring structure; the rotor flow meter monitors and regulates the gas flow, while the PLC monitors the entire gas usage process and performs point-level monitoring. An alarm is activated when the gas level falls below or exceeds a set value to prevent undetected gas outages or abnormal increases in flow. This application first introduces an inert gas, followed by a combustible gas for preliminary mixing, ensuring that the combustible gas is always protected during the mixing process, forming a conical spiral four-way spiral mixture. The first half of the positive and negative mixing valve in this application automatically performs vortex mixing, while the second half, due to its structure, can achieve a slight positive pressure on the gas, thereby accelerating the gas's entry into the production environment.

[0033] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. It should be noted that the terms "in one embodiment," "for example," and "again," etc., in this application are intended to illustrate the application and not to limit it. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas flow control and mixing control device, characterized in that, include: The system comprises a rotor flow meter, a first check valve, a conical spiral multi-port valve, and a forward and reverse mixing valve. The rotor flow meter and the first check valve are each in at least two units. Each rotor flow meter has a gas inlet and a gas outlet. The conical spiral multi-port valve has a mixed gas outlet and at least two gas inlets. The outlet of each rotor flow meter is connected to the gas inlet of the conical spiral multi-port valve via the first check valve. The conical spiral multi-port valve is used to mix the gas flowing in through at least two rotor flow meters. The mixed gas outlet of the conical spiral multi-port valve is connected to the forward and reverse mixing valve.

2. The gas flow control and mixing control device according to claim 1, characterized in that, The conical spiral multi-port is either a conical spiral tee or a conical spiral four-port. The conical spiral tee has two gas inlets, and the conical spiral four-port has three gas inlets.

3. The gas flow control and mixing control device according to claim 1, characterized in that, The gas flow control mixing control device also includes a second one-way valve, and the mixed gas output port of the conical spiral multi-port is connected to the positive and negative mixing valve through the second one-way valve.

4. The gas flow control and mixing control device according to claim 1, characterized in that, The gas flow control mixing control device also includes a gas mass flow meter, which is connected between the first one-way valve and the gas inlet of the conical spiral multi-port.

5. The gas flow control and mixing control device according to claim 4, characterized in that, The gas flow control mixing control device also includes a signal receiving line, which is located adjacent to the gas mass flow meter.

6. The gas flow control and mixing control device according to claim 5, characterized in that, The gas flow control and mixing control device also includes a PLC monitor, which is electrically connected to the signal receiving line.

7. The gas flow control and mixing control device according to claim 6, characterized in that, The gas flow control and mixing control device also includes a cabinet, in which the rotor flow meter, the first one-way valve, the conical spiral multi-way valve, the forward and reverse mixing valve, and the PLC monitor are all installed.

8. The gas flow control and mixing control device according to claim 7, characterized in that, The positive and negative mixing valve is also connected to an air outlet pipe.

9. The gas flow control and mixing control device according to claim 6, characterized in that, There are two positive and negative mixing valves, and the two positive and negative mixing valves are connected in series.

10. The gas flow control and mixing control device according to claim 1, characterized in that, The rotor flowmeter is an electric rotor flowmeter.

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