Simulation gas supply device based on SRV furnace gas

Abstract

The utility model relates to the technical field of smelting reduction furnace gas transmission, distribution and storage, in particular to a simulation gas supply device based on SRV furnace gas. The utility model provides a simulation gas supply device based on SRV furnace gas, the simulation gas supply device comprises a hydrogen sulfide gas supply device, a carbon dioxide gas supply device and a gas mixing device, the hydrogen sulfide gas supply device and the carbon dioxide gas supply device are respectively connected to the gas mixing device, the hydrogen sulfide supply device comprises a hydrogen sulfide pipeline, a hydrogen sulfide bottle group, a hydrogen sulfide busbar, a hydrogen sulfide filtering pressure reducer, a hydrogen sulfide metering device and a hydrogen sulfide flow regulating valve; the carbon dioxide supply device comprises a carbon dioxide pipeline, a carbon dioxide bottle group, a carbon dioxide busbar, a carbon dioxide filtering pressure reducer, a carbon dioxide metering device and a carbon dioxide flow regulating valve. The simulation gas supply based on the SRV furnace gas can be realized, the operation is simple, convenient and flexible, and the safe, stable and continuous simulation gas supply can be realized.

Description

Technical Field

[0001] The present disclosure relates to the technical field of smelting reduction furnace coal gas transmission, distribution and storage, and in particular to a simulated gas supply device based on SRV furnace coal gas. Background Art

[0002] Smelting reduction (SRV), a typical short-process steelmaking process, is a new technology in urgent need of development. SRV furnace gas, a byproduct of this process, consists primarily of nitrogen dioxide (N2), carbon dioxide, and hydrogen sulfide (H2S), in addition to combustion components. The H2S content is high (approximately 600-800 ppm), and the CO2 concentration is approximately 25%. Combustion of this high concentration of H2S produces large amounts of SO2, which can impact human health and the environment. Direct emission of this high concentration of CO2 cannot meet carbon reduction requirements.

[0003] Currently, the technologies used to purify and separate SRV furnace gas are subject to numerous uncertainties, and many approaches remain in the experimental stage. To ensure experimental safety, using simulated SRV furnace gas for related research is a key approach. Therefore, a supply device for simulated SRV furnace gas is urgently needed for exploration and practical application. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, the present disclosure provides a simulated gas supply device based on SRV furnace gas, including a hydrogen sulfide gas supply device, a carbon dioxide gas supply device and a gas mixing device, wherein the hydrogen sulfide gas supply device and the carbon dioxide gas supply device are respectively connected to the gas mixing device, and the hydrogen sulfide gas supply device includes a hydrogen sulfide pipeline, a hydrogen sulfide bottle group, a hydrogen sulfide bus, a hydrogen sulfide filter pressure reducer, a hydrogen sulfide metering device and a hydrogen sulfide flow regulating valve, one end of the hydrogen sulfide pipeline is connected to the gas mixing device, the hydrogen sulfide bus, the hydrogen sulfide The filter pressure reducer, the hydrogen sulfide metering device and the hydrogen sulfide flow regulating valve are arranged on the hydrogen sulfide pipeline, and the hydrogen sulfide bus is arranged on a side away from the gas mixing device, the hydrogen sulfide flow regulating valve is arranged on a side close to the gas mixing device, the hydrogen sulfide filter pressure reducer is arranged between the hydrogen sulfide bus and the hydrogen sulfide flow regulating valve, the hydrogen sulfide metering device is arranged between the hydrogen sulfide filter pressure reducer and the hydrogen sulfide flow regulating valve, and the hydrogen sulfide bottle group is connected to the hydrogen sulfide bus;

[0006] The carbon dioxide supply device includes a carbon dioxide pipeline, a carbon dioxide bottle group, a carbon dioxide bus, a carbon dioxide filter pressure reducer, a carbon dioxide metering device and a carbon dioxide flow regulating valve. One end of the carbon dioxide pipeline is connected to the gas mixing device. The carbon dioxide bus, the carbon dioxide filter pressure reducer, the carbon dioxide metering device and the carbon dioxide flow regulating valve are arranged on the carbon dioxide pipeline, and the carbon dioxide bus is arranged on the side away from the gas mixing device, the carbon dioxide flow regulating valve is arranged on the side close to the gas mixing device, the carbon dioxide filter pressure reducer is arranged between the carbon dioxide bus and the carbon dioxide flow regulating valve, the carbon dioxide metering device is arranged between the carbon dioxide filter pressure reducer and the carbon dioxide flow regulating valve, and the carbon dioxide bottle group is connected to the carbon dioxide bus.

[0007] In a feasible embodiment, it also includes a hydrogen sulfide check valve and a carbon dioxide check valve, the hydrogen sulfide check valve is arranged on the side of the hydrogen sulfide pipeline close to the gas mixing device, and the hydrogen sulfide check valve is used to prevent the gas in the gas mixing device from flowing back into the hydrogen sulfide pipeline; the carbon dioxide check valve is arranged on the side of the carbon dioxide pipeline close to the gas mixing device, and the carbon dioxide check valve is used to prevent the gas in the gas mixing device from flowing back into the carbon dioxide pipeline.

[0008] In a feasible embodiment, it also includes hydrogen sulfide temperature and pressure detection instruments, which are arranged on the outlet side of the hydrogen sulfide filter pressure reducer and are used to monitor the pressure and temperature in the hydrogen sulfide pipeline.

[0009] In a feasible embodiment, it further includes a hydrogen sulfide safety valve, which is arranged on the hydrogen sulfide pipeline on the outlet side of the hydrogen sulfide filter pressure reducer, and the set pressure of the hydrogen sulfide safety valve is 0.2 MPa.

[0010] In a feasible embodiment, it further includes a hydrogen sulfide release valve, which is arranged on the hydrogen sulfide pipeline between the hydrogen sulfide metering device and the hydrogen sulfide filter pressure reducer.

[0011] In a feasible embodiment, it also includes a carbon dioxide temperature and pressure detection instrument, which is arranged on the outlet side of the carbon dioxide filter pressure reducer and is used to monitor the pressure and temperature in the carbon dioxide pipeline.

[0012] In a feasible embodiment, a carbon dioxide safety valve is further included, which is arranged on the carbon dioxide pipeline on the outlet side of the carbon dioxide filter pressure reducer, and the set pressure of the carbon dioxide safety valve is 0.2 MPa.

[0013] In a feasible embodiment, a carbon dioxide release valve is further included, and the carbon dioxide release valve is arranged on the carbon dioxide pipeline between the carbon dioxide metering device and the carbon dioxide filter pressure reducer.

[0014] In a feasible implementation manner, the hydrogen sulfide metering device and the carbon dioxide metering device are configured as orifice flow meters or mass flow meters.

[0015] In a feasible embodiment, an annular nozzle is provided inside the gas mixing device.

[0016] The above description is only an overview of the technical solution provided by the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other features and effects of the present disclosure more obvious and easy to understand, the following specifically lists the implementation methods of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered limiting of the present application. Throughout the accompanying drawings, the same reference symbols denote the same components. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the present disclosure.

[0021] in, Figure 1The correspondence between the figure numbers and the component names is: 10-hydrogen sulfide pipeline; 11-hydrogen sulfide bottle group; 12-hydrogen sulfide bus; 13-hydrogen sulfide filter pressure reducer; 14-hydrogen sulfide temperature and pressure detection instrument; 15-hydrogen sulfide safety valve; 16-hydrogen sulfide release valve; 17-hydrogen sulfide metering device; 18-hydrogen sulfide flow regulating valve; 19-hydrogen sulfide check valve; 20-carbon dioxide pipeline; 21-carbon dioxide bottle group; 22-carbon dioxide bus; 23-carbon dioxide filter pressure reducer; 24-carbon dioxide temperature and pressure detection instrument; 25-carbon dioxide safety valve; 26-carbon dioxide release valve; 27-carbon dioxide metering device; 28-carbon dioxide flow regulating valve; 29-carbon dioxide check valve; 3-gas mixing device; 30-nitrogen pipeline; 31-mixed gas pipeline; 4-PLC device. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0024] Smelting reduction (SRV), a typical short-process steelmaking process, is a new technology in urgent need of development. SRV furnace gas, a byproduct of this process, consists primarily of nitrogen dioxide (N2), carbon dioxide, and hydrogen sulfide (H2S), in addition to combustion components. The H2S content is high (approximately 600-800 ppm), and the CO2 concentration is approximately 25%. Combustion of this high concentration of H2S produces large amounts of SO2, which can impact human health and the environment. Direct emission of this high concentration of CO2 cannot meet carbon reduction requirements.

[0025] Based on this, the embodiment of the present disclosure provides a simulated gas supply device based on SRV furnace gas, which can realize the simulated gas supply based on SRV furnace gas, provide a stable gas source for the subsequent separation and purification unit of SRV furnace gas, is simple and flexible to operate, and can realize safe, stable and continuous simulated gas supply.

[0026] The simulated gas supply device based on SRV furnace gas is described in detail below through a specific embodiment:

[0027] Reference Figure 1As shown, the present disclosure provides a simulated gas supply device based on SRV furnace gas, including a hydrogen sulfide gas supply device, a carbon dioxide gas supply device and a gas mixing device 3, the hydrogen sulfide gas supply device and the carbon dioxide gas supply device are respectively connected to the gas mixing device 3, the hydrogen sulfide gas supply device includes a hydrogen sulfide pipeline 10, a hydrogen sulfide bottle group 11, a hydrogen sulfide bus 12, a hydrogen sulfide filter pressure reducer 13, a hydrogen sulfide metering device 17 and a hydrogen sulfide flow regulating valve 18, one end of the hydrogen sulfide pipeline 10 is connected to the gas mixing device 3 is connected, the hydrogen sulfide bus 12, the hydrogen sulfide filter pressure reducer 13, the hydrogen sulfide metering device 17 and the hydrogen sulfide flow regulating valve 18 are arranged on the hydrogen sulfide pipeline 10, and the hydrogen sulfide bus 12 is arranged on the side away from the gas mixing device 3, the hydrogen sulfide flow regulating valve 18 is arranged on the side close to the gas mixing device 3, the hydrogen sulfide filter pressure reducer 13 is arranged between the hydrogen sulfide bus 12 and the hydrogen sulfide flow regulating valve 18, the hydrogen sulfide metering device 17 is arranged between the hydrogen sulfide filter pressure reducer 13 and the hydrogen sulfide flow regulating valve 18, and the hydrogen sulfide metering device 17 is arranged between the hydrogen sulfide filter pressure reducer 13 and the hydrogen sulfide flow regulating valve 18. The hydrogen sulfide bottle group 11 is connected to the hydrogen sulfide flow regulating valve 18; the carbon dioxide gas supply device includes a carbon dioxide pipeline 20, a carbon dioxide bottle group 21, a carbon dioxide bus 22, a carbon dioxide filter pressure reducer 23, a carbon dioxide metering device 27 and a carbon dioxide flow regulating valve 28. One end of the carbon dioxide pipeline 20 is connected to the gas mixing device 3, and the carbon dioxide bus 22, the carbon dioxide filter pressure reducer 23, the carbon dioxide metering device 27 and the carbon dioxide flow regulating valve 28 are arranged on the carbon dioxide pipeline 20, and the carbon dioxide bus 22 is arranged on the side away from the gas mixing device 3, and the carbon dioxide flow regulating valve 28 is arranged on the side close to the gas mixing device 3. The carbon dioxide filter pressure reducer 23 is arranged between the carbon dioxide bus 22 and the carbon dioxide flow regulating valve 28, the carbon dioxide metering device 27 is arranged between the carbon dioxide filter pressure reducer 23 and the carbon dioxide flow regulating valve 28, and the carbon dioxide bottle group 21 is connected to the carbon dioxide bus 22.

[0028] The hydrogen sulfide pipeline 10 and carbon dioxide pipeline 20 of the present disclosure are respectively connected to the side inlet of the gas mixing device 3; the inlet of the gas mixing device 3 is connected to the nitrogen pipeline 30, and the outlet is connected to the mixed gas pipeline 31; the mixed gas pipeline 31 is connected to the subsequent SRV furnace gas separation and purification device. The hydrogen sulfide pipeline 10 and the carbon dioxide pipeline 20 can be made of stainless steel with a diameter of DN25; the nitrogen pipeline 30 and the mixed gas pipeline 31 can be made of stainless steel with a diameter of DN50.

[0029] The hydrogen sulfide cylinder group 11 and carbon dioxide cylinder group 21 disclosed herein are respectively filled with hydrogen sulfide with a purity of ≥99.99% and carbon dioxide with a purity of ≥99.99%, and both are at a pressure of 15.0 MPa. Specifically, each hydrogen sulfide cylinder group 11 and carbon dioxide cylinder group 21 can be provided with multiple cylinders. In the present disclosure, two cylinders are specifically selected as a group, each equipped with a check valve and connected to the hydrogen sulfide bus 12 and carbon dioxide bus 22, respectively, by metal hoses.

[0030] The hydrogen sulfide bus 12 and the carbon dioxide bus 22 disclosed in the present invention are both connected with bus angle valves, wherein the filtration precision of the hydrogen sulfide filter pressure reducer 13 and the carbon dioxide filter pressure reducer 23 are both 80 mesh, and the pressure is reduced from 15.0 MPa to 10-15 kPa; the hydrogen sulfide metering device 17 and the carbon dioxide metering device 27 are respectively linked with the hydrogen sulfide flow control valve 18 and the carbon dioxide flow control valve 28 to control the system flow and the hydrogen sulfide content in the mixed gas, and the flow adjustment range is 10-25 Nm3 / h.

[0031] In some embodiments, a hydrogen sulfide check valve 19 and a carbon dioxide check valve 29 are further included. The hydrogen sulfide check valve 19 is disposed on the side of the hydrogen sulfide pipeline 10 near the gas mixing device 3, and is used to prevent the gas in the gas mixing device 3 from flowing back into the hydrogen sulfide pipeline 10. The carbon dioxide check valve 29 is disposed on the side of the carbon dioxide pipeline 20 near the gas mixing device 3, and is used to prevent the gas in the gas mixing device 3 from flowing back into the carbon dioxide pipeline 20. In this embodiment, the hydrogen sulfide check valve 19 and the carbon dioxide check valve 29 disclosed herein can effectively prevent the cross-flow of hydrogen sulfide and carbon dioxide, thereby ensuring gas supply safety.

[0032] In some embodiments, a hydrogen sulfide temperature and pressure detection instrument 14 is further included. The hydrogen sulfide temperature and pressure detection instrument 14 is disposed on the outlet side of the hydrogen sulfide filter pressure reducer 13 and is used to monitor the pressure and temperature within the hydrogen sulfide pipeline 10. The hydrogen sulfide temperature and pressure detection instruments 14 disclosed herein are all locally installed and display-enabled.

[0033] In some embodiments, a hydrogen sulfide safety valve 15 is further included. The hydrogen sulfide safety valve 15 is arranged on the hydrogen sulfide pipeline 10 on the outlet side of the hydrogen sulfide filter pressure reducer 13, and the set pressure of the hydrogen sulfide safety valve 15 is 0.2 MPa.

[0034] In this embodiment, the hydrogen sulfide safety valve 15 disclosed in the present invention is a safety facility of the hydrogen sulfide gas supply device. When the system is over-pressured, the safety valve automatically opens and releases pressure. The set pressure of the safety valve is 0.2 MPa.

[0035] In some embodiments, a hydrogen sulfide release valve 16 is further included. The hydrogen sulfide release valve 16 is disposed on the hydrogen sulfide pipeline 10 between the hydrogen sulfide metering device 17 and the hydrogen sulfide filter pressure reducer 13 .

[0036] In this embodiment, after the absorption reaction is completed, the corresponding gas in the pipeline can be vented by opening the hydrogen sulfide manual release valve 16 to improve the convenience of preparation and maintenance.

[0037] In some embodiments, a carbon dioxide temperature and pressure detection instrument 24 is further included. The carbon dioxide temperature and pressure detection instrument 24 is disposed on the outlet side of the carbon dioxide filter pressure reducer 23 and is used to monitor the pressure and temperature within the carbon dioxide pipeline 20. In this embodiment, the carbon dioxide temperature and pressure detection instruments 24 of the present disclosure are all locally installed and display-enabled.

[0038] In some embodiments, a carbon dioxide safety valve 25 is further included. The carbon dioxide safety valve 25 is disposed on the carbon dioxide pipeline 20 at the outlet side of the carbon dioxide filter pressure reducer 23 , and the set pressure of the carbon dioxide safety valve 25 is 0.2 MPa.

[0039] In this embodiment, the carbon dioxide safety valve 25 of the present disclosure is a safety facility of the carbon dioxide gas supply device. When the system is over-pressured, the safety valve automatically opens and releases pressure. The set pressure of the safety valve is 0.2 MPa.

[0040] In some embodiments, a carbon dioxide release valve 26 is further included. The carbon dioxide release valve 26 is disposed on the carbon dioxide pipeline 20 between the carbon dioxide metering device 27 and the carbon dioxide filter pressure reducer 23. In this embodiment, after the absorption reaction is completed, the corresponding gas in the pipeline can be vented by opening the carbon dioxide manual release valve 26.

[0041] In some embodiments, the hydrogen sulfide metering device 17 and the carbon dioxide metering device 27 are configured as orifice flow meters or mass flow meters.

[0042] In some embodiments, an annular nozzle is provided inside the gas mixing device 3. The annular nozzle is provided inside the gas mixing device 3 to ensure that the simulated gas is evenly mixed in the component, providing conditions for entering the subsequent SRV furnace gas separation and purification device.

[0043] The PLC device 4 in the automated control system disclosed herein is connected to the hydrogen sulfide metering device 17, hydrogen sulfide flow control valve 18, and the carbon dioxide metering device 27, carbon dioxide flow control valve 28, respectively, to achieve precise control of the hydrogen sulfide and carbon dioxide flow rates. After proportioning, the simulated gas composition of the SRV furnace gas is 700 ppm hydrogen sulfide and 25% carbon dioxide, with the remainder being nitrogen.

[0044] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0045] In the description of the present disclosure, it is to be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation on the present disclosure.

[0046] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A simulated gas supply device based on SRV furnace gas, characterized in that: It includes a hydrogen sulfide gas supply device, a carbon dioxide gas supply device and a gas mixing device, wherein the hydrogen sulfide gas supply device and the carbon dioxide gas supply device are respectively connected to the gas mixing device, wherein: The hydrogen sulfide gas supply device includes a hydrogen sulfide pipeline, a hydrogen sulfide bottle group, a hydrogen sulfide bus, a hydrogen sulfide filter pressure reducer, a hydrogen sulfide metering device and a hydrogen sulfide flow regulating valve. One end of the hydrogen sulfide pipeline is connected to the gas mixing device. The hydrogen sulfide bus, the hydrogen sulfide filter pressure reducer, the hydrogen sulfide metering device and the hydrogen sulfide flow regulating valve are arranged on the hydrogen sulfide pipeline, and the hydrogen sulfide bus is arranged on a side away from the gas mixing device, and the hydrogen sulfide flow regulating valve is arranged on a side close to the gas mixing device. The hydrogen sulfide filter pressure reducer is arranged between the hydrogen sulfide bus and the hydrogen sulfide flow regulating valve, the hydrogen sulfide metering device is arranged between the hydrogen sulfide filter pressure reducer and the hydrogen sulfide flow regulating valve, and the hydrogen sulfide bottle group is connected to the hydrogen sulfide bus; The carbon dioxide supply device includes a carbon dioxide pipeline, a carbon dioxide bottle group, a carbon dioxide bus, a carbon dioxide filter pressure reducer, a carbon dioxide metering device and a carbon dioxide flow regulating valve. One end of the carbon dioxide pipeline is connected to the gas mixing device. The carbon dioxide bus, the carbon dioxide filter pressure reducer, the carbon dioxide metering device and the carbon dioxide flow regulating valve are arranged on the carbon dioxide pipeline, and the carbon dioxide bus is arranged on the side away from the gas mixing device, the carbon dioxide flow regulating valve is arranged on the side close to the gas mixing device, the carbon dioxide filter pressure reducer is arranged between the carbon dioxide bus and the carbon dioxide flow regulating valve, the carbon dioxide metering device is arranged between the carbon dioxide filter pressure reducer and the carbon dioxide flow regulating valve, and the carbon dioxide bottle group is connected to the carbon dioxide bus.

2. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes a hydrogen sulfide check valve and a carbon dioxide check valve. The hydrogen sulfide check valve is arranged on a side of the hydrogen sulfide pipeline close to the gas mixing device, and the hydrogen sulfide check valve is used to prevent the gas in the gas mixing device from flowing back into the hydrogen sulfide pipeline; the carbon dioxide check valve is arranged on a side of the carbon dioxide pipeline close to the gas mixing device, and the carbon dioxide check valve is used to prevent the gas in the gas mixing device from flowing back into the carbon dioxide pipeline.

3. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes hydrogen sulfide temperature and pressure detection instruments, which are arranged on the outlet side of the hydrogen sulfide filter pressure reducer and are used to monitor the pressure and temperature in the hydrogen sulfide pipeline.

4. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes a hydrogen sulfide safety valve, which is arranged on the hydrogen sulfide pipeline on the outlet side of the hydrogen sulfide filter pressure reducer, and the set pressure of the hydrogen sulfide safety valve is 0.2 MPa.

5. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes a hydrogen sulfide release valve, which is arranged on the hydrogen sulfide pipeline between the hydrogen sulfide metering device and the hydrogen sulfide filter pressure reducer.

6. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes carbon dioxide temperature and pressure detection instruments, which are arranged on the outlet side of the carbon dioxide filter pressure reducer and are used to monitor the pressure and temperature in the carbon dioxide pipeline.

7. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes a carbon dioxide safety valve, which is arranged on the carbon dioxide pipeline on the outlet side of the carbon dioxide filter pressure reducer, and the set pressure of the carbon dioxide safety valve is 0.2MPa.

8. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: It also includes a carbon dioxide release valve, which is arranged on the carbon dioxide pipeline between the carbon dioxide metering device and the carbon dioxide filter pressure reducer.

9. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: The hydrogen sulfide metering device and the carbon dioxide metering device are configured as orifice flowmeters or mass flowmeters.

10. The simulated gas supply device based on SRV furnace gas according to claim 1, characterized in that: An annular nozzle is provided inside the gas mixing device.

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