Biogas torch system

Abstract

The utility model provides a biogas torch system which comprises a torch, an ignition module, a switching module, a pressure detection module and a control module, and a communication pipeline is arranged on one side of the torch; the ignition module is arranged on one side of the torch, one end of the ignition module communicates with the communicating pipeline, the other end of the ignition module is located in the torch, and the ignition module is used for conducting ignition combustion on biogas; the two switching modules are arranged on one side of the torch, one ends of the two switching modules communicate with the communicating pipeline, and the other ends of the two switching modules communicate with each other, extend into the torch and are used for supplying combustion gas to the ignition module; the pressure detection module is arranged on the communicating pipeline, the pressure value of biogas can be detected through the arranged pressure detection module, the system can control the corresponding adjusting module to be started and stopped according to the change of the pressure of the biogas, it is ensured that the torch operates within the safe pressure range, and safety accidents possibly caused by too high or too low pressure are avoided; and the torch combustion process is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas treatment, in particular to a biogas torch system. Background Art

[0002] Anaerobic fermentation process is often installed in food waste treatment stations, waste incineration power plants, farms, wastewater treatment plants and other plants. Biogas is produced as a by-product, and its main component is 50%-70% methane. Biogas produced on a larger scale is mostly recycled, and flares are used as backup equipment. Biogas produced on a smaller scale is mostly directly incinerated through flares.

[0003] A Chinese patent with publication number CN215765135U discloses a fixed biogas torch, including a torch body, a gas cylinder, an induced burner, a main pipeline, an ignition branch pipe, an ignition gun, a flame detector, a temperature sensor, a flow meter, a quick shut-off valve, a gas online analyzer and a controller; the gas cylinder is arranged inside the torch body; the ignition gun is arranged at the outlet end of the ignition branch pipe; the flame detector is arranged on the inner surface of the side wall of the torch body; and the gas online analyzer is arranged on the main pipeline.

[0004] Currently, the existing biogas torches do not detect the pressure of biogas. If the biogas supply pressure is too high and the torch is not adjusted accordingly, the torch will burn unstable and even explode or fire will occur. If the biogas supply pressure is too low and the torch continues to run, the torch will go out due to lack of fuel, resulting in incomplete combustion of biogas, increasing safety risks and reducing the stability of the torch combustion process. Utility Model Content

[0005] In view of this, the utility model proposes a biogas torch system. According to the change of biogas pressure, the system can control the opening and closing of the corresponding valve body to ensure that the torch operates within a safe pressure range, making the torch combustion process more stable.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a biogas torch system, including a torch, an ignition module, a switching module, a pressure detection module and a control module, wherein:

[0007] The torch is arranged on the ground and is hollow inside, and a connecting pipe is arranged on one side of the torch;

[0008] The ignition module is arranged on one side of the torch, and one end of the ignition module is connected to the connecting pipe, and the other end is located in the torch, and the ignition module is used to ignite and burn the biogas;

[0009] The two switching modules are both arranged on one side of the torch, and one end of the two switching modules is connected to the connecting pipe, and the other end is connected and extends into the torch, so as to supply combustion gas to the ignition module;

[0010] The pressure detection module is arranged on the connecting pipe to detect the pressure value of the biogas, and the output end of the pressure detection module is electrically connected to the input end of the control module, and the output end of the control module is electrically connected to the input ends of the ignition module and the two switching modules.

[0011] On the basis of the above technical solution, preferably, the ignition module includes a burner spray plate, an ignition transformer and an ignition solenoid valve, wherein:

[0012] The burner spray plate is arranged in the torch, and a plurality of nozzles are arranged on the burner spray plate, and the gas delivery end of the burner spray plate is connected with one end of the ignition electromagnetic valve, and the other end of the ignition electromagnetic valve is connected with the connecting pipe;

[0013] The ignition transformer is arranged outside the torch and corresponds to the position of the burner spray plate;

[0014] The biogas transported in the connecting pipeline is sent into the burner spray plate through the ignition solenoid valve, and the ignition transformer ignites and burns the sent biogas.

[0015] On the basis of the above technical solution, preferably, the end surface of the burner spray disc is arranged in a circular shape, and the plurality of nozzles are evenly distributed in a circular array along the center of the burner spray disc.

[0016] On the basis of the above technical solution, preferably, the input ends of the ignition transformer and the ignition solenoid valve are electrically connected to the output end of the control module, and the control module controls the opening and closing of the ignition transformer and the ignition solenoid valve.

[0017] On the basis of the above technical solution, preferably, the two switching modules each include an electric butterfly valve and a manual regulating valve, wherein:

[0018] One end of the manual regulating valve is connected to the connecting pipe and the ignition solenoid valve, and is used to adjust the biogas supply;

[0019] One end of the electric butterfly valve is connected to the other end of the manual regulating valve, and the other end of the electric butterfly valve is connected to the gas supply end of the burner spray plate.

[0020] On the basis of the above technical solution, preferably, a flame arrester is also included, wherein one end of the two electric butterfly valves away from the manual regulating valve is connected to one end of the flame arrester, and the other end of the flame arrester is connected to the gas supply end of the burner spray plate to prevent backfire.

[0021] On the basis of the above technical solution, preferably, the calibers of the two electric butterfly valves and the manual regulating valve are not equal.

[0022] On the basis of the above technical solution, preferably, the input ends of the two electric butterfly valves are electrically connected to the output end of the control module, and the control module controls the opening and closing of the two electric butterfly valves.

[0023] On the basis of the above technical solution, preferably, it also includes a blower, wherein the blower is arranged on the outside of the torch, and the air outlet end of the blower penetrates and extends into the torch to supply oxygen into the torch.

[0024] On the basis of the above technical solution, preferably, it also includes a rain cover, wherein the rain cover is arranged on the side of the torch away from the ground to provide rain protection.

[0025] The biogas torch system of the utility model has the following beneficial effects compared with the prior art:

[0026] (1) The pressure detection module can detect the pressure value of biogas. The system can control the opening and closing of the corresponding regulating module according to the change of biogas pressure, ensuring that the torch operates within a safe pressure range, avoiding safety accidents caused by excessively high or low pressure, and making the torch combustion process more stable;

[0027] (2) A plurality of nozzles are arranged in a uniform annular array along the center of the burner spray disc, and the nozzles are used to spray the biogas evenly into the interior of the torch, which is conducive to the combustion of the mixed gas;

[0028] (3) The blower can effectively introduce external air into the torch, providing sufficient oxygen for biogas combustion, which can not only improve the combustion efficiency and make the biogas burn more fully, but also reduce the temperature of the torch surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a biogas torch system of the utility model;

[0031] Figure 2 The utility model is a biogas torch system Figure 1 A partial enlarged schematic diagram in the middle;

[0032] Figure 3 A top view of the internal structure of the torch of the biogas torch system of the utility model;

[0033] Figure 4 This is a system block diagram of the biogas torch system of the utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1-4 As shown, a biogas torch system of the utility model includes a torch 1, an ignition module 2, a switching module 3, a pressure detection module 4 and a control module 5, wherein the torch 1 is arranged on the ground and is hollow inside, and a connecting pipe 100 is arranged on one side of the torch 1; the ignition module 2 is arranged on one side of the torch 1, and one end of the ignition module 2 is connected to the connecting pipe 100, and the other end is located in the torch 1, and the ignition module 2 is used to ignite and burn biogas; two switching modules 3 are arranged on one side of the torch 1, and one end of the two switching modules 3 is connected to the connecting pipe 100, and the other end is connected and extends into the torch 1, for supplying combustion gas to the ignition module 2; the pressure detection module 4 is arranged on the connecting pipe 100, for detecting the pressure value of biogas, and the output end of the pressure detection module 4 is electrically connected to the input end of the control module 5, and the output end of the control module 5 is electrically connected to the input ends of the ignition module 2 and the two switching modules 3.

[0036] It should be noted that biogas enters the torch 1 through the connecting pipe 100, and the pressure detection module 4 monitors the pressure value of the biogas in real time and transmits the data to the control module 5. The control module 5 determines whether the ignition operation can be performed according to the biogas pressure value. The system presets a medium pressure threshold, a low pressure threshold and a high pressure threshold. When it is detected that the biogas pressure value reaches the medium pressure threshold, the control module 5 controls the ignition module 2 to start ignition and combustion, and turns on one of the switching modules 3 to supply gas. When it is detected that the biogas pressure value reaches the high pressure threshold, the control module 5 controls the other switching module 3 to turn on and supply gas. When it is detected that the biogas pressure value drops to the medium pressure threshold, the control module 5 controls the other switching module 3 to close. When it is detected that the biogas pressure value drops to the low pressure threshold, the ignition module 2 and the two switching modules 3 are closed, and the torch stops running. The torch system can control the opening and closing of the corresponding electric butterfly valve according to the change of biogas pressure to ensure that the torch operates within a safe pressure range, avoiding safety accidents that may be caused by excessively high or low pressure, and making the torch combustion process more stable.

[0037] In addition, the control module 5 is arranged in a control box, and the control box can well protect the controller.

[0038] The ignition module 2 in this embodiment includes a burner spray disc 21, an ignition transformer 22 and an ignition solenoid valve 23, wherein the burner spray disc 21 is arranged in the torch 1, and a plurality of nozzles 210 are provided on the burner spray disc 21, and the gas supply end of the burner spray disc 21 is connected with one end of the ignition solenoid valve 23, and the other end of the ignition solenoid valve 23 is connected with the connecting pipe 100; the ignition transformer 22 is arranged on the outside of the torch 1, and is arranged corresponding to the position of the burner spray disc 21; the biogas transported in the connecting pipe 100 is delivered into the burner spray disc 21 through the ignition solenoid valve 23, and the ignition transformer 22 ignites and burns the delivered biogas.

[0039] It should be noted that a plurality of nozzles 210 are provided on the burner spray disc 21, and the nozzles 210 are used to evenly spray the biogas into the interior of the torch 1 to form a mixed gas that is conducive to combustion. One end of the connecting pipe 100 extends into the interior of the torch barrel 1 and is connected to the burner spray disc 21, and the other end is located outside the torch 1. The connecting pipe 100 is used to transport biogas into the torch 1, and the collected biogas enters the torch 1 through the connecting pipe 100 for combustion.

[0040] Specifically, biogas enters the torch 1 through the connecting pipe 100; when the biogas pressure is within a safe range, the control module 5 will issue a command to open the ignition solenoid valve 23; the biogas flows into the burner spray disc 21 through the solenoid valve and is evenly sprayed into the inside of the torch through the nozzle; at this time, the ignition transformer 22 generates a high-voltage electric spark to ignite the biogas and start the combustion process.

[0041] In addition, in this embodiment, a UV detection probe is provided on the outside of the torch 1. The detection end of the UV detection probe penetrates and extends into the torch 1 and is located above the burner spray disc 21. The UV detection probe is used to detect whether the ignition is successful.

[0042] In addition, in this embodiment, a temperature detection probe is provided on the outside of the torch 1. The detection end of the temperature detection probe penetrates and extends into the torch 1 and is located above the UV detection probe. The temperature detection probe is used to monitor the combustion temperature inside the torch barrel.

[0043] The end surface of the burner spray disc 21 in this embodiment is arranged in a circular shape, and the plurality of nozzles 210 are evenly distributed in a circular array along the center of the burner spray disc 21 .

[0044] The input ends of the ignition transformer 22 and the ignition solenoid valve 23 are both electrically connected to the output end of the control module 5 , and the control module 5 controls the opening and closing of the ignition transformer 22 and the ignition solenoid valve 23 .

[0045] It should be noted that the control module 5 can control the opening and closing of the ignition transformer 22 and the ignition solenoid valve 23 through a relay, so that the coil of the relay is electrically connected to the control module 5, and the contacts of the relay are electrically connected to the ignition transformer 22, the ignition solenoid valve 23 and the external power supply. The control module 5 controls the coil of the relay to be energized, so that the contacts connecting the ignition transformer 22 and the ignition solenoid valve 23 are closed, thereby controlling the opening and closing of the ignition transformer 22 and the ignition solenoid valve 23.

[0046] The two switching modules 3 in this embodiment both include an electric butterfly valve 31 and a manual regulating valve 32, wherein one end of the manual regulating valve 32 is connected to the connecting pipe 100 and the ignition solenoid valve 23 for adjusting the biogas supply; one end of the electric butterfly valve 31 is connected to the other end of the manual regulating valve 32, and the other end of the electric butterfly valve 31 is connected to the gas supply end of the burner spray disc 21.

[0047] It should be noted that after the biogas passes through the ignition solenoid valve 23 from the connecting pipe 100, it will first flow through the manual regulating valve 32. The staff can control the biogas supply by adjusting the opening of the manual regulating valve 32. The biogas flow passes through the electric butterfly valve 31 and is finally supplied to the burner nozzle 21 for combustion.

[0048] Specifically, the diameters of the two electric butterfly valves 31 and the manual regulating valve 32 in this embodiment are not equal, the diameter of one electric butterfly valve 31 is 80 mm, the diameter of the other electric butterfly valve 31 is 125 mm, and the diameter of the manual regulating valve 32 is 200 mm.

[0049] This embodiment also includes a flame arrester 33, wherein one end of the two electric butterfly valves 31 away from the manual regulating valve 32 is connected to one end of the flame arrester 33, and the other end of the flame arrester 33 is connected to the gas supply end of the burner spray plate 21 to prevent backfire.

[0050] It should be noted that the use of the flame arrester 33 ensures the safe operation of the biogas torch system. When the biogas flows to the burner spray plate 21 through the electric butterfly valve 31, the flame arrester 33 can effectively prevent the backflow of the flame, reducing potential safety risks.

[0051] In this embodiment, the input ends of the two electric butterfly valves 31 are both electrically connected to the output end of the control module 5 , and the control module 5 controls the opening and closing of the two electric butterfly valves 31 .

[0052] It can be understood that the control principle of the electric butterfly valve 31 is the same as that of the ignition transformer 22 and the ignition solenoid valve 23 .

[0053] This embodiment also includes a blower 6 , wherein the blower 6 is arranged outside the torch 1 , and an air outlet end of the blower 6 penetrates and extends into the torch 1 for supplying oxygen into the torch 1 .

[0054] It should be noted that when the biogas burns in the torch 1, sufficient oxygen is required to maintain the combustion process. The introduction of the blower 6 can effectively introduce external air into the torch 1 to provide sufficient oxygen for the biogas combustion, which can not only improve the combustion efficiency and make the biogas burn more fully, but also reduce the temperature of the outer surface of the torch 1.

[0055] The present embodiment further includes a rain cover 7, wherein the rain cover 7 is arranged on a side of the torch 1 away from the ground to provide rain protection.

[0056] It should be noted that when the torch 1 is operated in an outdoor environment, it may be corroded by rain; rain may not only affect the combustion process inside the torch, but also cause damage to the external structure and related equipment of the torch; the rain cover 7 can effectively block rain, thereby protecting the normal operation of the torch.

[0057] In this embodiment, the inner wall of the torch 1 is provided with a high temperature resistant insulation layer, which helps to ensure the temperature of the combustion process and the stability of the combustion process. The high temperature resistant insulation layer 20 is made of aluminum silicate insulation material and has a thickness of 200 mm.

[0058] Working principle:

[0059] The system presets a medium pressure threshold, a low pressure threshold and a high pressure threshold. When the pressure detection module 4 detects that the biogas pressure value reaches the medium pressure threshold, the control module 5 controls the ignition transformer 22, the ignition solenoid valve 23 and the DN80 electric butterfly valve 31 to open. Since the solenoid valve 23 starts 1-2 seconds faster than the electric butterfly valve 31, the ignition module 2 starts ignition first, and the biogas is transported to the torch 1 through the DN80 electric butterfly valve 31 for combustion. When the pressure detection module 4 detects that the biogas pressure value rises to the high pressure threshold, the control module 5 The DN125 electric butterfly valve 31 is controlled to open, and the DN80 and DN125 electric butterfly valves 31 burn simultaneously to equal the total gas volume. When the pressure detection module 4 detects that the biogas pressure value drops to the middle pressure threshold, the control module 5 controls the DN125 electric butterfly valve 31 to close and return to the state where the biogas pressure value reaches the middle pressure threshold. When the pressure detection module 4 detects that the biogas pressure value drops to the low pressure threshold, the control module 5 controls the two electric butterfly valves 31 and the ignition transformer 22 and the ignition solenoid valve 23 to close, and the torch stops running.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 biogas flare system, characterized in that: It comprises a torch (1), an ignition module (2), a switching module (3), a pressure detection module (4) and a control module (5), wherein: The torch (1) is arranged on the ground and is hollow inside, and a connecting pipe (100) is arranged on one side of the torch (1); The ignition module (2) is arranged on one side of the torch (1), and one end of the ignition module (2) is connected to the connecting pipe (100), and the other end is located inside the torch (1). The ignition module (2) is used to ignite and burn the biogas; The two switching modules (3) are both arranged on one side of the torch (1), and one end of the two switching modules (3) is connected to the connecting pipe (100), and the other end is connected and extends into the torch (1) for supplying combustion gas to the ignition module (2); The pressure detection module (4) is arranged on the connecting pipe (100) and is used to detect the pressure value of the biogas, and the output end of the pressure detection module (4) is electrically connected to the input end of the control module (5), and the output end of the control module (5) is electrically connected to the input ends of the ignition module (2) and the two switching modules (3).

2. The biogas torch system according to claim 1, characterized in that: The ignition module (2) comprises a burner spray plate (21), an ignition transformer (22) and an ignition solenoid valve (23), wherein: A burner spray disc (21) is arranged in the torch (1), a plurality of nozzles (210) are arranged on the burner spray disc (21), and a gas delivery end of the burner spray disc (21) is connected to one end of an ignition electromagnetic valve (23), and the other end of the ignition electromagnetic valve (23) is connected to a connecting pipe (100); The ignition transformer (22) is arranged outside the torch (1) and is arranged corresponding to the position of the burner spray plate (21); The biogas transported in the communication pipe (100) is sent into the burner spray plate (21) through the ignition electromagnetic valve (23), and the ignition transformer (22) ignites and burns the biogas sent in.

3. The biogas torch system according to claim 2, characterized in that: The end surface of the burner spray disc (21) is arranged in a circular shape, and the plurality of nozzles (210) are distributed in a circular uniform array along the center of the burner spray disc (21).

4. The biogas torch system according to claim 2, characterized in that: The input ends of the ignition transformer (22) and the ignition solenoid valve (23) are both electrically connected to the output end of the control module (5), and the control module (5) controls the opening and closing of the ignition transformer (22) and the ignition solenoid valve (23).

5. The biogas torch system according to claim 2, characterized in that: The two switching modules (3) each comprise an electric butterfly valve (31) and a manual regulating valve (32), wherein: One end of the manual regulating valve (32) is connected to the communication pipe (100) and the ignition solenoid valve (23) and is used to adjust the biogas supply; One end of the electric butterfly valve (31) is connected to the other end of the manual regulating valve (32), and the other end of the electric butterfly valve (31) is connected to the gas supply end of the burner spray plate (21).

6. The biogas torch system according to claim 5, characterized in that: It also includes a flame arrester (33), wherein one end of the two electric butterfly valves (31) away from the manual regulating valve (32) is connected to one end of the flame arrester (33), and the other end of the flame arrester (33) is connected to the gas supply end of the burner spray plate (21) to prevent backfire.

7. The biogas flare system according to claim 5, characterized in that: The calibers of the two electric butterfly valves (31) and the manual regulating valve (32) are not equal.

8. The biogas torch system according to claim 5, characterized in that: The input ends of the two electric butterfly valves (31) are both electrically connected to the output end of the control module (5), and the control module (5) controls the opening and closing of the two electric butterfly valves (31).

9. The biogas torch system according to claim 1, characterized in that: It also includes a blower (6), wherein the blower (6) is arranged outside the torch (1), and the air outlet end of the blower (6) penetrates and extends into the torch (1) to supply oxygen to the torch (1).

10. The biogas flare system according to claim 1, characterized in that: It also comprises a rain cover (7), wherein the rain cover (7) is arranged on a side of the torch (1) away from the ground to provide a rain shield.

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