Biogas pressure control device of biogas power generation system

Abstract

The utility model relates to a biogas pressure control device of a biogas power generation system, and relates to the field of biogas power generation equipment. The device comprises an adjusting part, a gas conveying pipe and an indicating cylinder pipe, the adjusting part comprises a pressure adjusting cylinder, a gas inlet pipe is horizontally and fixedly communicated with the upper side of the outer circumferential surface of the pressure adjusting cylinder, the bottom end face of the pressure adjusting cylinder is open, a screw ring is vertically and fixedly communicated with the top surface of the pressure adjusting cylinder, and a screw cover is fixed to the opening of the bottom end of the pressure adjusting cylinder; an adjusting screw rod is assembled in the screw cover in a vertical thread penetrating mode, a pressure adjusting piston is arranged in the pressure adjusting cylinder, the bottom face of the pressure adjusting piston is rotationally connected with the top end of the adjusting screw rod, the gas conveying pipe is arranged at the top of the pressure adjusting cylinder, and one end of the gas conveying pipe is fixedly communicated with a screw shell. The gas volume change of the pressure adjusting cylinder is adjusted, the pressure value of the biogas discharged into the biogas power generation system is controlled, and then the gas supply pressure of the biogas is adjusted, the combustible amount of the biogas is increased and adjusted, and the power generation requirement of the biogas power generation system is adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of biogas power generation equipment, and in particular to a biogas pressure control device for a biogas power generation system. Background Art

[0002] Biogas power generation is a technology that uses biogas produced by anaerobic digestion of organic waste as fuel to generate electricity. This technology can not only effectively treat organic waste in agriculture, industry and urban life, but also generate clean energy and reduce greenhouse gas emissions. It has significant environmental and socio-economic benefits. When generating electricity, biogas is introduced into a high-pressure pre-combustion chamber and ignited, and then the heat is transferred to the atmosphere chamber.

[0003] The existing announcement number is CN203308576U, and its name is a biogas power generation system, which includes a gas mixing device and an internal combustion engine connected by a pipeline, and also includes a gas boost storage device connected to the gas mixing device by a pipeline. The internal combustion engine is connected to a generator through a transmission. The biogas is pressurized and stored by the gas boost storage device to save space volume. Then the biogas is mixed with air to achieve the best combustion ratio, enters the internal combustion engine for ignition and work, and drives the generator to generate electricity; the pressurized storage tank increases the biogas pressure to 10KPa, the gas circuit solenoid valve plays the role of conducting and cutting off the gas circuit, and the pressure regulating valve plays the role of adjusting and stabilizing the biogas pressure in the pressure regulating gas storage tank; the intermittent gas supply valve plays the role of intermittent gas supply to the gas mixing device.

[0004] Regarding the above-mentioned related technologies, the inventors found that the above-mentioned biogas power generation equipment needs to introduce low-pressure biogas into the high-pressure pre-combustion chamber after boosting the pressure and igniting it, and then transfer the heat to the atmospheric chamber, so as to improve the combustion efficiency and increase the stability of the ignition system. However, the combustible amount of biogas in the low-pressure state is small, and it is impossible to adjust the gas supply pressure of the biogas to increase the combustible amount of biogas. Utility Model Content

[0005] In order to overcome the problem that existing biogas power generation equipment needs to increase the pressure of low-pressure biogas and then introduce it into the high-pressure pre-combustion chamber for ignition, and then transfer the heat to the atmosphere chamber, thereby improving the combustion efficiency and increasing the stability of the ignition system, but the combustible amount of biogas in the low-pressure state is small, and the gas supply pressure of the biogas cannot be adjusted, and the situation of increasing the adjustment of the combustible amount of biogas is increased, the present application provides a biogas pressure control device for a biogas power generation system.

[0006] The biogas pressure control device of the biogas power generation system provided in this application adopts the following technical solution:

[0007] A biogas pressure control device for a biogas power generation system comprises a regulating member, a gas pipe and an indicator tube, the regulating member comprises a pressure regulating tube, an upper side of an outer circumferential surface of the pressure regulating tube is horizontally connected and fixed with an air inlet pipe, and the bottom end surface of the pressure regulating tube is provided with an opening, a screw ring is vertically connected and fixed on the top surface of the pressure regulating tube, a screw cover is fixed at the bottom end opening of the pressure regulating tube, and an regulating screw is assembled through a vertical thread in the screw cover, a pressure regulating piston is provided inside the pressure regulating tube, and the bottom surface of the pressure regulating piston is rotatably connected to the top end of the regulating screw, the gas pipe is provided at the top of the pressure regulating tube, and one end of the gas pipe is connected and fixed with a screw shell, and the screw shell thread is connected to the assembled screw ring, and a plurality of indicator tubes are horizontally connected and fixed on the outer wall of the pressure regulating tube in a vertical direction.

[0008] By adopting the above technical solution, according to the demand for biogas pressure during power generation of the biogas power generation system, the gas transmission pipe is first connected and assembled on the screw ring at the top of the pressure regulating cylinder, and then the adjusting screw on the screw cap at the bottom of the pressure regulating cylinder is rotated to push the pressure regulating piston to move vertically in the pressure regulating cylinder to control the gas storage volume of the pressure regulating cylinder. During use, the air inlet pipe on the pressure regulating cylinder in the adjusting part is connected to the biogas supply pipe, and biogas is continuously added to the pressure regulating cylinder. The pressure value in the pressure regulating cylinder is indicated by the indicator tube, and then the adjusted biogas is transported into the biogas power generation system through the gas transmission pipe, so that the gas storage volume of the pressure regulating cylinder is controlled by adjusting the height of the vertical movement of the pressure regulating piston in the pressure regulating cylinder. By adjusting the change of the gas storage volume of the pressure regulating cylinder, the pressure value of the biogas discharged into the biogas power generation system is controlled, and then by adjusting the gas supply pressure of the biogas, the combustible amount of biogas is increased and adjusted, and the power generation demand of the biogas power generation system is adjusted.

[0009] Optionally, a first valve is assembled on the air intake pipe, and an air connection flange is fixed to the end of the air intake pipe.

[0010] By adopting the above technical solution, the gas storage volume of the pressure regulating cylinder is controlled. When adding biogas, the gas connecting flange is first connected and fixed to the biogas supply pipeline, and the first valve on the air inlet pipe is opened to continuously transport the biogas into the pressure regulating cylinder.

[0011] Optionally, a connecting flange is fixed to the other end of the gas pipeline, and a second valve is assembled on the gas pipeline.

[0012] By adopting the above technical solution, one end of the gas pipeline is connected to the gas inlet pipe of the biogas power generation system through a connecting flange. When the biogas pressure in the pressure regulating cylinder reaches the combustion requirement, the second valve on the gas pipeline is opened to control the biogas to be discharged into the biogas power generation system for combustion and power generation.

[0013] Optionally, the outer end of the indicator tube is horizontally connected to a through tube fixed thereto, a slide rod is horizontally slidably inserted into the through tube of the indicator tube, an indicator piston is provided inside the indicator tube, and the indicator piston is fixedly connected to the end of the slide rod.

[0014] By adopting the above technical solution, when the biogas pressure in the pressure regulating cylinder changes, the biogas enters the indicator cylinder tube, pushing the indicating piston to slide horizontally in the indicator cylinder tube, pushing the slide rod to slide in the through cylinder at the end of the indicator cylinder tube, and thus judging the biogas pressure value in the pressure regulating cylinder by the length of the slide rod sliding out of the through cylinder.

[0015] Optionally, a plurality of scale lines are transversely arranged on the outer circumference of the slide rod, and a spring is sleeved on the outside of the slide rod, with both ends of the spring respectively fixed to the end of the slide rod and the outer end surface of the indicator tube.

[0016] By adopting the above technical solution, when the indicating piston slides horizontally in the indicating cylinder, the spring is pressed to deform, and the length of the slide rod sliding out of the cylinder is controlled according to the deformation of the spring.

[0017] Optionally, an observation window is vertically opened on the outer wall of the through tube, and the observation window is used to observe the scale line reading on the sliding rod.

[0018] By adopting the above technical solution, the scale line on the slide rod is observed through the observation window on the through cylinder, and the biogas pressure value in the pressure regulating cylinder is judged by the length of the slide rod sliding out of the through cylinder.

[0019] Optionally, a screw hole strip is horizontally fixed on the outer wall of the indicating barrel, and a pressing screw rod is assembled through a horizontal thread on the other end of the screw hole strip.

[0020] By adopting the above technical solution, in order to control the biogas pressure value in the pressure regulating cylinder, the pressing screw on the screw hole bar is rotated, and one end of the pressing screw is pressed against the outer end of the sliding rod, thereby controlling the length of the sliding rod sliding out of the cylinder to ensure that the biogas pressure in the pressure regulating cylinder reaches the specified value.

[0021] Optionally, a bracket is vertically fixed to the bottom of the outer circumference of the pressure regulating cylinder, and a fixing screw is vertically assembled through the bottom end of the bracket.

[0022] By adopting the above technical solution, the outer wall of the pressure regulating cylinder is fixed vertically to the bracket during use, and the bottom end of the bracket is fixed and assembled by fixing screws.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: during use, according to the demand for biogas pressure in the power generation of the biogas power generation system, the gas pipe is first connected and assembled on the screw ring at the top of the pressure regulating cylinder, and then the adjusting screw on the screw cover at the bottom of the pressure regulating cylinder is rotated to push the pressure regulating piston to move vertically in the pressure regulating cylinder to control the gas storage volume of the pressure regulating cylinder. During use, the air inlet pipe on the pressure regulating cylinder in the adjusting part is connected to the biogas supply pipe, and biogas is continuously added to the pressure regulating cylinder. The pressure value in the pressure regulating cylinder is indicated by the indicator tube, and then the adjusted biogas is transported into the biogas power generation system through the gas pipe, so that the gas storage volume of the pressure regulating cylinder is controlled by adjusting the height of the vertical movement of the pressure regulating piston in the pressure regulating cylinder. By adjusting the change of the gas storage volume of the pressure regulating cylinder, the pressure value of the biogas discharged into the biogas power generation system is controlled, and then by adjusting the gas supply pressure of the biogas, the combustible amount of biogas is increased and adjusted, and the power generation demand of the biogas power generation system is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 This is a schematic diagram of the structure of the embodiment of the present application in an exploded state;

[0026] Figure 3 This is a schematic structural diagram of the adjusting member in the embodiment of the present application in a disassembled state;

[0027] Figure 4 This is a schematic structural diagram of the indicator tube in the embodiment of the present application in a disassembled state;

[0028] Figure 5 It is a schematic structural diagram of the intake pipe in a disassembled state according to an embodiment of the present application.

[0029] Explanation of the accompanying symbols: 1. Adjusting part; 11. Pressure-regulating cylinder; 12. Screw ring; 13. Air inlet pipe; 131. Air connecting flange; 132. First valve; 14. Screw cover; 15. Adjusting screw; 16. Pressure-regulating piston; 17. Bracket; 171. Fixing screw; 2. Air supply pipe; 21. Second valve; 22. Screw shell; 23. Connecting flange; 3. Indicating tube; 31. Through cylinder; 32. Observation window; 33. Indicating piston; 34. Sliding rod; 341. Scale line; 35. Spring; 36. Screw hole strip; 37. Pressure screw. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] The embodiment of the present application discloses a biogas pressure control device for a biogas power generation system. Figure 1 、 Figure 2 、 Figure 3 and Figure 4The cam 12 is connected to the upper end of the cam 12 and the lower end of the cam 12 is connected to the lower end of the cam 12. The cam 12 is connected to the lower end of the cam 12 and the lower end of the cam 12 is connected to the lower end of the cam 12. The cam 12 is connected to the lower end of the cam 12 and the lower end of the cam 12 is connected to the lower end of the cam 12.

[0032] By adopting the above technical solution, according to the demand for biogas pressure during power generation of the biogas power generation system, the gas transmission pipe 2 is first connected and assembled on the screw ring 12 at the top end of the pressure regulating cylinder 11, and then the adjusting screw 15 on the screw cap 14 at the bottom end of the pressure regulating cylinder 11 is rotated to push the pressure regulating piston 16 to move vertically in the pressure regulating cylinder 11 to control the gas storage volume of the pressure regulating cylinder 11. During use, the air inlet pipe 13 on the pressure regulating cylinder 11 in the adjusting member 1 is connected to the biogas supply pipeline, and biogas is continuously added to the pressure regulating cylinder 11. The pressure value in the pressure regulating cylinder 11 is indicated by the indicator tube 3, and then the regulated biogas is transported into the biogas power generation system through the gas transmission pipe 2, so that the gas storage volume of the pressure regulating cylinder 11 is controlled by adjusting the height of the vertical movement of the pressure regulating piston 16 in the pressure regulating cylinder 11. By adjusting the change of the gas storage volume of the pressure regulating cylinder 11, the biogas pressure value discharged into the biogas power generation system is controlled, and then by adjusting the gas supply pressure of the biogas, the combustible amount of biogas is increased and adjusted, and the power generation demand of the biogas power generation system is adjusted.

[0033] Reference Figure 3 The inlet pipe 13 is connected to and assembled with a first valve 132, and the end of the inlet pipe 13 is connected and fixed with a gas connection flange 131. To control the gas storage volume of the pressure regulating cylinder 11, when adding biogas, the gas connection flange 131 is first connected and fixed to the biogas supply pipeline, and the first valve 132 on the inlet pipe 13 is opened to continuously convey biogas into the pressure regulating cylinder 11.

[0034] Reference Figure 3 and Figure 5 The other end of the gas pipe 2 is connected to a connecting flange 23, and a second valve 21 is assembled on the gas pipe 2. One end of the gas pipe 2 is connected to the gas inlet pipe of the biogas power generation system through the connecting flange 23. When the biogas pressure in the pressure regulating cylinder 11 reaches the combustion requirement, the second valve 21 on the gas pipe 2 is opened to control the discharge of biogas into the biogas power generation system for combustion and power generation.

[0035] Reference Figure 3 and Figure 4 The outer end of the indicator tube 3 is horizontally connected to a through-tube 31. A slide rod 34 slides horizontally within the through-tube 31 of the indicator tube 3. An indicator piston 33 is located within the indicator tube 3 and is fixedly connected to the end of the slide rod 34. When the biogas pressure in the pressure regulating tube 11 changes, biogas enters the indicator tube 3, pushing the indicator piston 33 to slide horizontally within the indicator tube 3, pushing the slide rod 34 to slide within the through-tube 31 at the end of the indicator tube 3. The biogas pressure in the pressure regulating tube 11 is determined by the length of the slide rod 34 sliding out of the through-tube 31. The outer circumference of the slide rod 34 is transversely marked with multiple scale lines 341. A spring 35 is sheathed around the outside of the slide rod 34, with its ends fixed to the end of the slide rod 34 and the outer end surface of the indicator tube 3, respectively. As the indicator piston 33 slides horizontally within the indicator tube 3, it compresses the spring 35, causing it to deform. The amount of deformation of the spring 35 controls the length of the slide rod 34 sliding out of the through-tube 31. An observation window 32 is provided vertically through the outer wall of the through-tube 31, and the observation window 32 is used to observe the scale line 341 reading on the slide bar 34. The scale line 341 on the slide bar 34 is observed through the observation window 32 on the through-tube 31, and the biogas pressure value in the pressure regulating tube 11 can be judged by the length of the slide bar 34 sliding out of the through-tube 31. A screw hole strip 36 is fixed horizontally on the outer wall of the indicator tube 3, and a pressure screw 37 is assembled with a horizontal thread passing through the other end of the screw hole strip 36. In order to control the biogas pressure value in the pressure regulating tube 11, the pressure screw 37 on the screw hole strip 36 is rotated, and one end of the pressure screw 37 presses against the outer end of the slide bar 34, thereby controlling the length of the slide bar 34 sliding out of the through-tube 31, ensuring that the biogas pressure in the pressure regulating tube 11 reaches the specified value.

[0036] Reference Figure 3 The outer circumference bottom of the pressure regulating cylinder 11 is vertically fixed with a bracket 17, and the bottom end of the bracket 17 is vertically penetrated and assembled with a fixing screw 171. In use, the outer wall of the pressure regulating cylinder 11 is vertically fixed with the bracket 17, and the bottom end of the bracket 17 is fixed with the fixing screw 171.

[0037] The implementation principle of the biogas pressure control device of the biogas power generation system of the present application is as follows: in use, according to the demand for biogas pressure in the power generation of the biogas power generation system, first connect the gas pipe 2 and assemble it on the screw ring 12 at the top of the pressure regulating cylinder 11, then rotate the adjusting screw 15 on the screw cap 14 at the bottom of the pressure regulating cylinder 11 to push the pressure regulating piston 16 to move vertically in the pressure regulating cylinder 11 to control the gas storage volume of the pressure regulating cylinder 11, first connect the gas flange 131 with the biogas supply pipeline and fix it, open the first screw on the air inlet pipe 13, and then press the first screw on the air inlet pipe 13 to release the pressure regulating piston 16. A valve 132 continuously delivers biogas into the pressure regulating cylinder 11, closes the second valve 21 on the gas pipe 2, and continuously adds biogas to the pressure regulating cylinder 11. The biogas enters the indicator tube 3 through the indicator piston 3, pushes the indicator piston 33 to slide horizontally in the indicator tube 3, and pushes the slide rod 34 to slide in the through tube 31 at the end of the indicator tube 3, so that the slide rod 34 slides out of the through tube 31 to judge the biogas pressure value in the pressure regulating cylinder 11, and then the regulated biogas is delivered to the biogas power generation system through the gas pipe 2.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A biogas pressure control device for a biogas power generation system, characterized in that: The invention comprises an adjusting member (1), an air delivery pipe (2) and an indicating tube (3), wherein the adjusting member (1) comprises a pressure regulating tube (11), an air inlet pipe (13) is fixed to the upper side of the outer circumference of the pressure regulating tube (11), and an opening is provided at the bottom end surface of the pressure regulating tube (11), a screw ring (12) is fixed to the top surface of the pressure regulating tube (11), a screw cover (14) is fixed at the bottom end opening of the pressure regulating tube (11), and a vertical thread is passed through the screw cover (14) to assemble the pressure regulating tube (11). An adjusting screw (15) is provided inside the pressure regulating cylinder (11), and a pressure regulating piston (16) is rotatably connected to the top of the adjusting screw (15). The gas supply pipe (2) is provided at the top of the pressure regulating cylinder (11), and one end of the gas supply pipe (2) is connected and fixed with a screw shell (22), and the screw shell (22) is threadedly connected to the assembly screw ring (12). A plurality of indicator tubes (3) are horizontally connected and fixed on the outer wall of the pressure regulating cylinder (11) along the vertical direction.

2. The biogas pressure control device of a biogas power generation system according to claim 1, characterized in that: The air intake pipe (13) is connected to and assembled with a first valve (132), and the end of the air intake pipe (13) is connected to and fixed with an air connection flange (131).

3. The biogas pressure control device of a biogas power generation system according to claim 2, characterized in that: The other end of the gas delivery pipe (2) is connected and fixed with a connecting flange (23), and a second valve (21) is connected and assembled on the gas delivery pipe (2).

4. The biogas pressure control device of a biogas power generation system according to claim 3, characterized in that: The outer end of the indicator tube (3) is horizontally connected to a through tube (31) fixed thereto, a slide rod (34) is horizontally slidably inserted into the through tube (31) of the indicator tube (3), an indicating piston (33) is provided inside the indicator tube (3), and the indicating piston (33) is fixedly connected to the end of the slide rod (34).

5. The biogas pressure control device of a biogas power generation system according to claim 4, characterized in that: A plurality of scale lines (341) are transversely arranged on the outer circumferential surface of the slide rod (34), and a spring (35) is sleeved on the outside of the slide rod (34), with both ends of the spring (35) respectively fixed to the end of the slide rod (34) and the outer end surface of the indicator tube (3).

6. The biogas pressure control device of a biogas power generation system according to claim 5, characterized in that: An observation window (32) is vertically provided on the outer wall of the through cylinder (31), and the observation window (32) is used to observe the reading of the scale line (341) on the slide rod (34).

7. The biogas pressure control device of a biogas power generation system according to claim 6, characterized in that: A screw hole strip (36) is horizontally fixed on the outer wall of the indicating barrel (3), and a pressing screw rod (37) is assembled through a horizontal thread on the other end of the screw hole strip (36).

8. The biogas pressure control device of a biogas power generation system according to claim 7, characterized in that: A bracket (17) is vertically fixed to the bottom of the outer circumference of the pressure regulating cylinder (11), and a fixing screw (171) is vertically penetrated and assembled through the bottom end of the bracket (17).

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