Device for automatically controlling calorific value of fuel gas

Abstract

The utility model discloses a device for automatically controlling the calorific value of fuel gas. The device comprises a fuel gas supply main path, a high calorific value adding branch, a low calorific value adding branch, a control unit and a detection unit, the gas supply main route is connected to a user output end through a factory pressure swing adsorption device; the high-calorific-value adding branch specifically comprises a high-calorific-value fuel gas storage tank and a first regulating valve; the main gas supply path is communicated with the main gas supply path; the low-calorific-value adding branch specifically comprises a low-calorific-value synthesis gas holder and a second regulating valve; the main gas supply path is communicated with the main gas supply path; the detection unit is used for detecting a gas hot gas value output to the user output end; the control unit controls the first adjusting valve or the second adjusting valve according to detection data of the detection unit so as to adjust the gas value. By adjusting the opening degree of the adjusting valve, the system can accurately control the amount of the added fuel gas, so that the heat value of the fuel gas is stable.

Description

Technical Field

[0001] This application relates to the field of cigarette packaging equipment technology, and more specifically, to an automatic control device for the calorific value of fuel gas. Background Technology

[0002] In modern fuel gas processing systems, plant pressure swing adsorption (PSA) units are widely used for separating fuel gases. However, due to various factors, such as temperature changes and pressure fluctuations during the production process, the calorific value of the fuel gas separated by PSA can fluctuate. This fluctuation in calorific value has a significant impact on normal operation, as the stability of the fuel gas's calorific value directly affects the equipment's operating efficiency and user satisfaction.

[0003] Traditional processing methods typically rely on timed or manual adjustments, which are not only inefficient but also make it difficult to achieve precise calorific value control.

[0004] To address this issue, a new technical solution has been proposed, which aims to ensure the stability of the calorific value of fuel gas through real-time monitoring and automatic control. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides an automatic fuel gas calorific value control device. This solution monitors the fuel gas calorific value data, which is then processed and calculated by a control unit to generate corresponding control commands. This allows the system to determine whether high-calorific-value or low-calorific-value fuel gas needs to be added. Simultaneously, by adjusting the opening of the regulating valve, the system can precisely control the amount of fuel gas added, thereby achieving stable fuel gas calorific value.

[0006] The present application provides an automatic control device for the calorific value of fuel gas, the specific technical solution of which is as follows: a main gas supply line, a high calorific value addition branch line, a low calorific value addition branch line, a control unit, and a detection unit;

[0007] The main gas supply route is connected from the factory pressure swing adsorption device to the user output terminal;

[0008] The high-calorific-value addition branch specifically comprises: a high-calorific-value fuel gas storage tank and a first regulating valve; and is connected to the main gas supply line.

[0009] The low-calorific-value addition branch specifically comprises: a low-calorific-value synthesis gas holder and a second regulating valve; and is connected to the main gas supply line.

[0010] The detection unit is used to detect the gas heat value output to the user output terminal;

[0011] The control unit controls the first regulating valve or the second regulating valve based on the detection data from the detection unit to adjust the gas value.

[0012] Preferably, both the high-calorific-value addition branch and the low-calorific-value addition branch are connected to the main gas supply line via a Venturi mixer.

[0013] Preferably, a vaporizer is also provided between the high calorific value addition branch and the first regulating valve.

[0014] Preferably, the control unit is a programmable logic controller (PLC).

[0015] Preferably, the detection unit is an online calorific value analyzer.

[0016] Preferably, the first regulating valve and the second regulating valve are electrically controlled regulating valves.

[0017] Preferably, the high-calorific-value addition branch and the low-calorific-value addition branch are arranged sequentially and connected in series with the main gas supply line.

[0018] Preferably, the detection unit is located at the user output terminal.

[0019] Preferably, the control unit is also provided with a communication module.

[0020] Preferably, the control unit is equipped with the communication module to remotely monitor the detection unit and remotely control the first regulating valve and the second regulating valve.

[0021] The automatic control device for fuel gas calorific value provided by this utility model monitors the calorific value of fuel gas in real time through a detection unit, and adjusts it according to the monitoring results under the action of the control unit to achieve a stable output of fuel gas calorific value, thereby meeting the user's demand for fuel gas with stable calorific value. This solution not only improves the automation level of the system, but also significantly enhances the stability and reliability of the fuel gas, thus meeting the user's needs for fuel gas use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1A schematic diagram of the structure of the automatic control fuel gas calorific value device provided in the embodiment of this utility model.

[0024] Reference numerals: 1. Plant pressure swing adsorption unit; 2. User output terminal; 3. High calorific value fuel gas storage tank; 4. First regulating valve; 5. Low calorific value synthesis gas holder; 6. Second regulating valve; 7. Detection unit; 8. Control unit; 9. Venturi mixer; 10. Gasifier. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0029] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0030] This specific embodiment of the present invention is written in a progressive manner.

[0031] This utility model embodiment provides an automatic control device for the calorific value of fuel gas, which mainly includes: a main gas supply line, a high calorific value addition branch line, a low calorific value addition branch line, a control unit 8, and a detection unit 7;

[0032] like Figure 1 As shown, in this embodiment, the high calorific value addition branch and the low calorific value addition branch are provided on the main gas supply line;

[0033] In this embodiment, the main gas supply route is connected from the factory pressure swing adsorption device 1 to the user output terminal 2;

[0034] The high-calorific-value addition branch specifically includes: a high-calorific-value fuel gas storage tank 3 and a first regulating valve 4; and is connected to the main gas supply line.

[0035] The low-calorific-value addition branch specifically comprises: a low-calorific-value synthesis gas holder 5 and a second regulating valve 6; and is connected to the main gas supply line.

[0036] However, unlike the prior art, in this embodiment, the detection unit 7 is also provided to detect the gas heat value output to the user output terminal 2;

[0037] The control unit 8 controls the first regulating valve 4 or the second regulating valve 6 based on the detection data from the detection unit 7, in order to adjust the gas value.

[0038] Preferably, in this embodiment, the structure of the high calorific value adding branch and the low calorific value adding branch is further defined. In this embodiment, both the high calorific value adding branch and the low calorific value adding branch are connected to the main gas supply line through a Venturi mixer 9. By providing the Venturi mixer 9, the high calorific value adding branch and the low calorific value adding branch have a more efficient gas-water mixing function and a backflow prevention function.

[0039] Preferably, in this embodiment, the high calorific value adding branch is further defined. In this embodiment, a vaporizer 10 is also provided between the high calorific value adding branch and the first regulating valve 4 to achieve the effects of increasing calorific value, increasing fire intensity, and energy saving and environmental protection.

[0040] Preferably, in this embodiment, the specific structure of the control unit 8 is further defined. In this embodiment, the control unit 8 is specifically a programmable logic controller (PLC). The PLC has internal instructions that can store and execute operations such as logical operations, sequential control, timing, counting, and arithmetic operations. Through the digital or analog input and output of the detection unit 7, it controls the opening degree of the first regulating valve 4 and the second regulating valve 6 to adjust the level of gas.

[0041] Preferably, the specific structure of the detection unit 7 in this embodiment is further defined. In this embodiment, the detection unit 7 is specifically an online calorific value analyzer; specifically, it can be one of an infrared calorific value analyzer, a fluorescence calorific value analyzer, or an electrochemical calorific value analyzer. This embodiment does not specifically limit it. It can transmit the gas value data to the PLC of the control unit 8 in real time for control and adjustment.

[0042] Preferably, in this embodiment, the specific structures of the first regulating valve 4 and the second regulating valve 6 are further defined. In this embodiment, the first regulating valve 4 and the second regulating valve 6 are specifically electrically controlled regulating valves, and the opening size of the first regulating valve 4 and the second regulating valve 6 is controlled by the PLC electrical signal of the control unit 8.

[0043] Preferably, in this embodiment, the structural arrangement of the high-calorific-value adding branch and the low-calorific-value adding branch is further defined, such as... Figure 1 As shown, in this embodiment, the high calorific value adding branch and the low calorific value adding branch are arranged sequentially and connected in series with the main gas supply line. By placing the high calorific value adding branch before the low calorific value adding branch, timely adjustment can be made when the gas value is too high, thus playing a protective role.

[0044] Furthermore, in this embodiment, the structural arrangement of the detection unit 7 is further defined, such as... Figure 1 As shown, in this embodiment, the detection unit 7 is located at the user output terminal 2, which can more accurately detect the gas value at the user output terminal 2.

[0045] Preferably, in this embodiment, the specific functions of the control unit 8 are further defined. In this embodiment, the control unit 8 is also provided with a communication module, which can digitize data and remotely input and output it.

[0046] Furthermore, in this embodiment, the specific functions of the control unit 8 are further defined. In this embodiment, the control unit 8 is equipped with the communication module to remotely monitor the detection unit 7 and remotely control the first regulating valve 4 and the second regulating valve 6. Operators can adjust the gas value through mobile phones, computers, and other remote devices without manual operation, thus improving convenience.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic control device for the calorific value of fuel gas, characterized in that, include: Gas supply main line, high calorific value addition branch line, low calorific value addition branch line, control unit, detection unit; The main gas supply route is connected from the factory pressure swing adsorption device to the user output terminal; The high-calorific-value addition branch specifically comprises: a high-calorific-value fuel gas storage tank and a first regulating valve; and is connected to the main gas supply line. The low-calorific-value addition branch specifically comprises: a low-calorific-value synthesis gas holder and a second regulating valve; and is connected to the main gas supply line. The detection unit is used to detect the gas heat value output to the user output terminal; The control unit controls the first regulating valve or the second regulating valve based on the detection data from the detection unit to adjust the gas value.

2. The automatic control fuel gas heating value device according to claim 1, wherein Both the high-calorific-value addition branch and the low-calorific-value addition branch are connected to the main gas supply line via a Venturi mixer.

3. The automatic control fuel gas heating value device according to claim 2, wherein A vaporizer is also provided between the high-calorific-value addition branch and the first regulating valve.

4. The automatic control fuel gas heating value device according to claim 3, wherein The control unit is specifically a programmable logic controller (PLC).

5. The automatic control fuel gas heating value device according to claim 4, wherein The detection unit is specifically an online calorific value analyzer.

6. The automatic control fuel gas heating value device according to claim 5, wherein The first regulating valve and the second regulating valve are specifically electrically controlled regulating valves.

7. The automatic control fuel gas heating value device according to claim 1, wherein The high-calorific-value addition branch and the low-calorific-value addition branch are arranged sequentially and connected in series with the main gas supply line.

8. The automatic control fuel gas heating value device according to claim 7, wherein, The detection unit is located at the user output terminal.

9. The automatic control fuel gas heating value device according to any one of claims 1 to 8, characterized by, The control unit is also equipped with a communication module.

10. The automatic control fuel gas heating value device according to claim 9, wherein, The control unit, equipped with the communication module, enables remote monitoring of the detection unit and remote control of the first and second regulating valves.

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