Hybrid energy storage buffer device for gas generator sets

Abstract

The present invention relates to a hybrid energy storage buffer device for a gas-fired generator set applied in the field of power supply. By detecting the product gas of the gas-fired generator set, it is determined whether the raw gas is fully burned and whether the gas-fired generator set has a power generation failure, and the output power of the gas-fired generator set is obtained at the same time. When incomplete combustion occurs and the electricity consumption is at a peak period, the energy storage battery pack is used to provide auxiliary power for part of the load, and the incompletely burned product gas is input into a secondary combustion device for purification, and the purified gas is used to preheat the raw gas, thereby realizing environmentally friendly power generation and waste heat recovery. When incomplete combustion occurs and the electricity consumption is at a low point, the energy storage battery pack is directly used to power all the loads, and the incompletely burned product gas is passed through the gas-fired generator set again for secondary combustion power generation, thereby improving environmental protection and notifying the staff to promptly repair the faulty gas-fired generator set.

Description

Technical Field

[0001] The present invention relates to a hybrid energy storage buffer device, in particular to a hybrid energy storage buffer device for a gas generator set applied in the power supply field. Background Art

[0002] The working principle of a gas generator is that natural gas is mixed with air and ignited through an ignition device to produce high-temperature and high-pressure gas, which drives the turbine to rotate and generates electricity through the principle of magnetic field induction.

[0003] For example, Chinese patent CN117905575B discloses a gas generator set combined with energy storage, comprising a plurality of gas generator bodies, the output ends of which are electrically connected to a battery, and a heat sink is provided on each of the gas generator bodies for dissipating heat from the gas generator bodies. The present invention generates electricity by burning gas and stores the electricity in a battery. When electricity demand is low, there is no need to shut down a single or multiple gas generator bodies; only the electricity generated by the gas generator bodies needs to be transferred to the battery, which can effectively improve energy utilization. In addition, gas generators generate a large amount of heat when in use. The present invention provides a heat sink on the gas generator body to effectively dissipate heat from the gas generator and effectively reduce the power generation loss of the generator.

[0004] For example, Chinese patent CN102118034B discloses a method for stabilizing the power system of a marine gas turbine generator set. This method utilizes a flywheel energy storage system to ensure stable operation of the power system during large load fluctuations of the gas turbine generator set, thereby improving power quality. The method has many advantages, including being environmentally friendly, having high energy storage density, a long service life, and low environmental requirements.

[0005] When existing gas-fired generator sets are burning to generate electricity, they are prone to incomplete combustion of raw gas due to factors such as improper air-fuel ratio, ignition failure, and carbon deposits. This not only affects the power generation efficiency and causes fluctuations in the load voltage, but also easily causes environmental pollution due to incompletely burned gas products. Summary of the Invention

[0006] In view of the above-mentioned existing technologies, the technical problem to be solved by the present invention is that when existing gas-fired generator sets burn to generate electricity, it is easy for various factors to cause incomplete combustion of raw gas, resulting in reduced power generation efficiency, load operation fluctuations, and environmental pollution.

[0007] To solve the above problems, the present invention provides a hybrid energy storage buffer device for a gas-fired generator set, comprising a hardware group and a control system. The hardware group includes a gas-fired generator set, a hybrid energy storage device, a product detection device, and a secondary combustion device. The hybrid energy storage device includes a supercapacitor and a pair of energy storage battery packs. The gas-fired generator set is fixedly connected to a fuel supply device via a multi-layer tube. The gas-fired generator set and the secondary combustion device are fixedly connected via an exhaust main pipe. An exhaust branch pipe 1 and an exhaust branch pipe 2 are fixedly connected to the exhaust main pipe. The end of the exhaust branch pipe 1 is fixedly connected to the product detection device. An exhaust branch pipe 3 is fixedly connected to the secondary combustion device. The ends of the exhaust branch pipes 2 and 3 are both fixedly connected to the multi-layer tube.

[0008] The control system includes a combustion power generation system, an auxiliary power supply system, a power monitoring system, an output switching system, an early warning system, and a gas control system. The gas generator set is electrically connected to the combustion power generation system, and the hybrid energy storage device is electrically connected to the auxiliary power supply system. The power monitoring system is used to monitor the output power of the gas generator set, and the output switching system is used to control the power transmission between the gas generator set and the hybrid energy storage device, as well as the power transmission between the two and the load;

[0009] The discharge main pipe, the discharge branch pipe 1 and the discharge branch pipe 2 are all fixedly connected with electric control valves, which are electrically connected to the gas control system;

[0010] The method for using the hybrid energy storage buffer device for a gas generator set comprises the following steps:

[0011] Step 1: Under normal circumstances, natural gas and air are mixed to form raw gas, which is then fed into the gas generator set through a multi-layer pipe. The gas generator set burns and generates electricity and directly supplies power to the load. The supercapacitor is used to provide instantaneous high power output to balance load fluctuations.

[0012] Step 2: Detect the product gas of the gas generator set. When the methane or carbon monoxide concentration exceeds the set normal range and the oxygen concentration is within the set normal range, first increase the air-fuel ratio and then continue to detect the product gas. If the methane or carbon monoxide concentration still exceeds the normal range, determine that the gas generator set is faulty.

[0013] Step 3: Obtain the output power of the gas-fired generator set. When the output power is within the set peak range, start the energy storage battery pack to provide auxiliary power for part of the load based on the gas-fired power generation module. At the same time, the product gas is input into the secondary combustion device for secondary combustion purification, and the purified gas is passed into the multi-layer tube to preheat the raw gas.

[0014] Step 4: When the output power is within the set low-peak range, start one energy storage battery pack to supply power to all loads. At the same time, disconnect the gas generator set from the load, and transmit the power output by the gas generator set to another energy storage battery pack. The product gas is directly passed into the multi-layer tube and then enters the gas generator set again for secondary combustion and power generation.

[0015] As a further supplement to the present application, the multi-layer tube includes a pair of raw material tubes, the outer ends of the pair of raw material tubes are fixedly connected to the same inner tube cover and the same outer tube cover, and the outer tube cover is sleeved on the outside of the inner tube cover. A soft sleeve is provided between the pair of raw material tubes, and the end of the raw material tube close to the gas generator set is fixedly connected to one end of the soft sleeve, and the other end of the soft sleeve is fixedly connected to a shaping ring.

[0016] As a further supplement to the present application, the inner surface of the inner pipe cover is fixedly connected with a first fixed ring and a second fixed ring, and the two are respectively located on both sides of the shaping ring. A compression spring is fixedly connected between the shaping ring and the second fixed ring, and the compression spring is movably sleeved on the outside of the soft sleeve. The end faces of the raw material pipe away from the gas generator set and the first fixed ring close to the soft sleeve are located on the same plane.

[0017] As a further supplement to this application, the discharge branch pipe 2 and the discharge branch pipe 3 are both fixedly passed through the outer pipe cover and the inner pipe cover and are connected to the interior of the inner pipe cover. The pipe mouth of the discharge branch pipe 2 is located on the side of the first fixed ring away from the shaping ring, and the pipe mouth of the discharge branch pipe 3 is located between the shaping ring and the second fixed ring.

[0018] As a further supplement to the present application, the outer end of the inner tube cover is fixedly connected with an air outlet pipe, which is fixed through the outer tube cover and communicates with the outside world. The air outlet pipe is located on the side of the second fixed ring away from the shaping ring.

[0019] As a further supplement to the present application, a strip-shaped opening is provided at the outer end of the outer tube cover, and an elastic membrane is fixedly connected to the inner wall of the strip-shaped opening.

[0020] As a further supplement to the present application, the outer end of the outer tube cover is fixedly and rotatably connected to a detection cover, which is sleeved on the outside of the strip-shaped opening. A groove is provided inside the detection cover, and a pressure sensor is fixedly connected to the inner wall of the groove. The sensing end of the pressure sensor is facing the center line position of the outer tube cover.

[0021] As a further supplement to the present application, a pair of limiting rings are fixedly connected to the outer end of the outer tube cover, and the detection cover is rotatably connected between the pair of limiting rings.

[0022] As a further supplement to the present application, the outer surface of the detection cover is coated with a color coating. When the pressure sensor is located directly above the outer tube cover, the color coating is located directly below the outer tube cover.

[0023] As a further supplement to the present application, the detection cover includes a pair of semicircular covers, a fastener is connected between the pair of semicircular covers, the outer ends of the semicircular covers are fixedly connected to a pair of perforated plates, and the fastener is connected between the pair of perforated plates.

[0024] To summarize, the present application detects the product gas of the gas-fired generator set to determine whether the raw gas is fully burned and whether the gas-fired generator set has a power generation failure, and obtains the output power of the gas-fired generator set at the same time. When incomplete combustion occurs and the electricity consumption is at a peak period, on the basis of the gas-fired power generation module, auxiliary power is supplied to part of the load through the energy storage battery pack, and at the same time, the incompletely burned product gas is input into the secondary combustion device for purification, and the purified gas is used to preheat the raw gas, thereby realizing environmentally friendly power generation and waste heat recovery. When incomplete combustion occurs and the electricity consumption is at a low point, the connection between the gas-fired generator set and the load is disconnected, and the energy storage battery pack directly supplies power to the load, and at the same time, the incompletely burned product gas is passed through the gas-fired generator set again for secondary combustion power generation, thereby improving environmental protection and informing the staff to promptly repair the faulty gas-fired generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic block diagram of the structure of the hardware group of the first and second implementation modes of this application;

[0026] Figure 2 A perspective view of a multilayer tube according to the first and second embodiments of the present application;

[0027] Figure 3 Schematic diagram of the side structure of the multilayer tube in the first and second embodiments of the present application;

[0028] Figure 4 Schematic diagram of the top surface structure of the multilayer tube in the first and second embodiments of the present application;

[0029] Figure 5 This is a schematic diagram of the top structure when the product gas is subjected to secondary combustion to generate electricity in the first and second embodiments of the present application;

[0030] Figure 6 This is a schematic diagram of the top structure when the waste heat of the purified product gas is recovered in the first and second embodiments of the present application;

[0031] Figure 7 A perspective view of a multilayer tube according to a second embodiment of the present application;

[0032] Figure 8 This is a front structural schematic diagram of a multilayer tube according to a second embodiment of the present application;

[0033] Figure 9This is a schematic side structural diagram of leak detection in the second embodiment of the present application;

[0034] Figure 10 These are three-dimensional views of multilayer tubes according to three embodiments of the present application.

[0035] Description of the numbers in the figure:

[0036] 1-raw material tube, 2-inner tube cover, 3-outer tube cover, 301-strip mouth, 4-first fixed ring, 5-forming ring, 6-soft sleeve, 7-second fixed ring, 8-compression spring, 9-detection cover, 901-groove, 91-semicircular cover, 92-perforated plate, 10-pressure sensor, 11-elastic membrane, 12-limiting ring, 13-exhaust pipe, 14-color coating. DETAILED DESCRIPTION

[0037] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0038] The first implementation method:

[0039] The present invention provides a hybrid energy storage buffer device for gas generator sets, please refer to Figure 1 , including a hardware group and a control system. The hardware group includes a gas generator set, a hybrid energy storage device, a product detection device and a secondary combustion device. The hybrid energy storage device includes a supercapacitor and a pair of energy storage battery packs. The gas generator set is fixedly connected to the fuel supply device through a multi-layer tube. The gas generator set and the secondary combustion device are fixedly connected through an exhaust main pipe. An exhaust branch pipe 1 and an exhaust branch pipe 2 are fixedly connected on the exhaust main pipe. The end of the exhaust branch pipe 1 is fixedly connected to the product detection device. An exhaust branch pipe 3 is fixedly connected to the secondary combustion device. The ends of the exhaust branch pipes 2 and 3 are both fixedly connected to the multi-layer tube.

[0040] The control system includes a combustion power generation system, an auxiliary power supply system, a power monitoring system, an output switching system, an early warning system and a gas control system. The gas generator set is electrically connected to the combustion power generation system, and the hybrid energy storage device is electrically connected to the auxiliary power supply system. The power monitoring system is used to monitor the output power of the gas generator set, and the output switching system is used to control the power transmission between the gas generator set and the hybrid energy storage device, as well as the power transmission between the two and the load.

[0041] The emission main pipe, emission branch pipe 1 and emission branch pipe 2 are all fixedly connected with electric control valves, which are electrically connected to the gas control system. The electric control valves on the emission main pipe are located on the side of emission branch pipe 1 and emission branch pipe 2 close to the secondary combustion device.

[0042] The method for using the hybrid energy storage buffer device for a gas generator set comprises the following steps:

[0043] Step 1: Under normal circumstances, natural gas and air are mixed to form raw gas. The ratio of natural gas to air can be 10:1. The raw gas is input into the gas generator set through a multi-layer pipe. The gas generator set burns and generates electricity and directly supplies power to the load. The supercapacitor is used to provide instantaneous high power output to balance load fluctuations.

[0044] Step 2: Detect the product gas of the gas-fired generator set (at this time, close the electronically controlled valves on the discharge main pipe and the second discharge branch pipe, and open the electronically controlled valve on the first discharge branch pipe, so that the product gas can enter the product detection device through the first discharge branch pipe). When the methane or carbon monoxide concentration exceeds the set normal range and the oxygen concentration is within the set normal range, first increase the air-fuel ratio and then continue to detect the product gas. If the methane or carbon monoxide concentration still exceeds the normal range, it is determined that the gas-fired generator set has failed, and the early warning system will sound an alarm to prompt the staff to carry out timely maintenance.

[0045] When the air-fuel ratio is increased, for example, the air-fuel ratio is adjusted from the original 10:1 to 11:1, and the methane or carbon monoxide concentration is still outside the set normal range, it indicates that the raw gas is still not fully burned under the condition of sufficient oxygen. Therefore, there may be carbon deposition, ignition failure and other gas generator faults. In this case, proceed to step 3 or step 4. On the contrary, when the air-fuel ratio is increased, the methane and carbon monoxide concentrations return to the set normal range, and it can be temporarily not determined as a gas generator fault.

[0046] When the detected methane or carbon monoxide concentrations are both within the set normal range, the product gas can be discharged through the exhaust pipe on the product detection device for subsequent use (such as waste heat recovery) or treatment as required.

[0047] Step 3: Obtain the output power of the gas-fired generator set. When the output power is within the set peak range, start the energy storage battery pack to provide auxiliary power for part of the load based on the gas-fired power generation module. At the same time, the product gas is input into the secondary combustion device for secondary combustion purification, and the purified gas is passed into the multi-layer tube to preheat the raw gas.

[0048] Since the output power is monitored to be within the set peak range, indicating that this moment is at the peak of electricity consumption, it is not easy to cancel the power supply of the gas generator set. However, since the raw gas is not fully burned, the power generation efficiency of the gas generator set is affected to a certain extent. Therefore, the load of the gas generator set can be reduced, and part of the load can be supplied by the energy storage battery pack. Moreover, since the gas products contain more harmful gases such as methane and carbon monoxide, they can be passed into the secondary combustion device for re-combustion (at this time, close the electric control valve on the discharge branch pipe 1 and open the electric control valve on the discharge main pipe), effectively reducing the methane and carbon monoxide content. In addition, the gas after secondary combustion enters the multi-layer tube through the discharge branch pipe 3. By utilizing its waste heat, the temperature of the raw gas is increased, thereby improving the power generation efficiency of the gas generator set.

[0049] Step 4: When the output power is within the set low-peak range, one energy storage battery pack is started to supply power to all loads. At the same time, the gas generator set is disconnected from the load, and the power output by the gas generator set is transmitted to another energy storage battery pack. The product gas is directly passed into the multi-layer tube and then re-enters the gas generator set for secondary combustion and power generation. The product gas after the secondary combustion and power generation is directly discharged through the product detection device.

[0050] If the output power is within the set low-peak range, it means that the electricity consumption is low at this moment and the load is light. At this time, the gas generator set can be disconnected from the load, and the energy storage battery pack will be fully powered. The product gas will be directly burned with the raw gas to generate electricity (the addition of product gas will significantly reduce the power generation efficiency of the gas generator set, so the power supply of the gas generator set to the load is disconnected). At this time, the electronically controlled valve on the discharge main pipe is closed, the electronically controlled valve on the discharge branch pipe 2 is opened, and the supply of raw gas is shut off, allowing the product gas to pass through the discharge branch pipe 2 into the multi-layer tube for secondary combustion and power generation.

[0051] After the product gas is processed, the gas generator set can be shut down because it is a low-power consumption period. After the fault is handled by personnel, it can be used again. Of course, if the fault is not handled in time and the peak power consumption period occurs again, the operation in step three can be adopted to make the gas generator set and the energy storage battery pack jointly power the load, and the product gas is discharged into the secondary combustion device, thereby achieving environmentally friendly power supply.

[0052] See also Figure 2 and Figure 3The multi-layer tube includes a pair of raw material tubes 1. The outer ends of the pair of raw material tubes 1 are fixedly connected to the same inner tube cover 2 and the same outer tube cover 3, and the outer tube cover 3 is sleeved on the outside of the inner tube cover 2. A soft sleeve 6 is provided between the pair of raw material tubes 1. The end of the raw material tube 1 close to the gas generator set is fixedly connected to one end of the soft sleeve 6. The other end of the soft sleeve 6 is fixedly connected to a fixing ring 5. The outer diameter of the fixing ring 5 is the same as the inner diameter of the inner tube cover 2, so that the fixing ring 5 can slide stably along the inner wall of the inner tube cover 2. The inner surface of the inner tube cover 2 is fixedly connected to a first fixing ring 4 and a second fixing ring 7, and the two fixing rings 7 are fixedly connected. They are respectively located on both sides of the shaping ring 5. The inner diameters of the first fixed ring 4 and the second fixed ring 7 are smaller than the outer diameter of the raw material pipe 1. A compression spring 8 is fixedly connected between the shaping ring 5 and the second fixed ring 7. The compression spring 8 is movably sleeved on the outside of the soft sleeve 6. The end faces of the raw material pipe 1 and the first fixed ring 4 away from the gas generator set close to the soft sleeve 6 are located on the same plane. In the initial state, the elastic force of the compression spring 8 causes the shaping ring 5 to form a stable abutment with the first fixed ring 4, and a pair of raw material pipes 1 and soft sleeves 6 form a complete tubular structure, which is convenient for the transportation of raw material gas.

[0053] See also Figure 4 The second and third discharge branch pipes are fixedly passed through the outer pipe cover 3 and the inner pipe cover 2 and communicate with the interior of the inner pipe cover 2. The outlet of the second discharge branch pipe is located on the side of the first fixed ring 4 away from the shaping ring 5. The outlet of the third discharge branch pipe is located between the shaping ring 5 and the second fixed ring 7. Figure 6 The outer end of the inner tube cover 2 is fixedly connected to an air outlet pipe 13, which is fixed through the outer tube cover 3 and communicates with the outside world. The air outlet pipe 13 is located on the side of the second fixed ring 7 away from the shaping ring 5.

[0054] In step 3, when the gas after secondary combustion is introduced into the multi-layer tube through the discharge branch pipe 3, Figure 6 As shown, the gas enters between the shaping ring 5 and the second fixing ring 7 on the inner side of the inner pipe cover 2. Since there is a gap between the second fixing ring 7 and the raw material pipe 1, the gas flows through the gap between the two to the outside of the soft sleeve 6 and the outside of the raw material pipe 1 closer to the gas generator set, thereby heating the raw material gas flowing through the soft sleeve 6 and the inside of the raw material pipe 1. After heating, the raw material gas enters the gas generator set for combustion, and the gas after heat exchange is finally discharged through the outlet pipe 13 for subsequent treatment or direct discharge.

[0055] In step 4, when the incompletely burned product gas is introduced into the multi-layer tube through the discharge branch pipe 2, the Figure 4 and Figure 5As shown, the product gas enters the side of the first fixed ring 4 away from the shaping ring 5. Since there is a gap between the first fixed ring 4 and the raw material pipe 1, as the air pressure in this area gradually increases, a thrust will be generated on the shaping ring 5, causing the shaping ring 5 to squeeze the compression spring 8, driving the soft sleeve 6 to move away from the first fixed ring 4. At this time, a passage is opened between the raw material pipe 1 and the soft sleeve 6, allowing the product gas to enter the raw material pipe 1 and enter the gas generator set together with the flowing raw material gas, realizing secondary combustion power generation, and also reducing the methane and carbon monoxide content.

[0056] In addition, the present application has an effective leakage prevention effect on the transportation of raw gas and the transportation of product gas in the secondary combustion power generation process through the multi-layer setting of the inner pipe cover 2 and the outer pipe cover 3, so that when the raw material pipe 1 or the inner pipe cover 2 is damaged and leaks, the outer pipe cover 3 has the ultimate protection effect on both, further improving the environmental protection effect of the present application.

[0057] Second implementation method:

[0058] This implementation method adds the following contents based on the first implementation method: Figure 3 and Figure 7 As shown, the outer end of the outer tube cover 3 is provided with a strip-shaped opening 301, and the inner wall of the strip-shaped opening 301 is fixedly connected to the elastic membrane 11, see Figure 3 and Figure 8 As shown, the outer end of the outer tube cover 3 is fixedly and rotatably connected to the detection cover 9, the detection cover 9 is sleeved on the outside of the strip-shaped opening 301, a groove 901 is opened inside the detection cover 9, the inner wall of the groove 901 is fixedly connected to the pressure sensor 10, the sensing end of the pressure sensor 10 is facing the center line position of the outer tube cover 3, the outer end of the outer tube cover 3 is fixedly connected to a pair of limit rings 12, the detection cover 9 is rotatably connected between the pair of limit rings 12, the limit rings 12 have a limiting effect on the rotation of the detection cover 9, so that the detection cover 9 is not easy to move horizontally along the outer tube cover 3.

[0059] See also Figure 10 The outer surface of the detection cover 9 is coated with a color coating 14. When the pressure sensor 10 is located directly above the outer tube cover 3, the color coating 14 is located directly below the outer tube cover 3. The color coating 14 plays a visual positioning role for the position of the pressure sensor 10.

[0060] When the pressure sensor 10 is not in use, Figure 3 As shown, the pressure sensor 10 is located on the lower side of the outer tube cover 3. At this time, the strip opening 301 is blocked by the inner wall of the outer tube cover 3, so that the elastic membrane 11 cannot produce obvious elastic expansion. The inner wall of the detection cover 9 and the outer wall of the outer tube cover 3 are in a friction-fixed state, that is, in the absence of external force, stability is achieved through the friction between the two.

[0061] When the pressure sensor 10 is used to detect the integrity of the outer pipe cover 3, as shown in FIG. Figure 8 and Figure 9 As shown, manually rotate the detection cover 9 by 90 degrees to move the pressure sensor 10 to the upper side of the strip opening 301 (supplementary note: this operation is performed before step three or step four). In this way, when step three or step four is performed, after the product gas enters the raw material pipe 1 or the gas processed by the secondary combustion device enters the inner pipe cover 2, its heat will gradually transfer to the outer pipe cover 3, causing the gas between the inner pipe cover 2 and the outer pipe cover 3 to expand due to heat. Under normal circumstances, if there is no leakage in the outer pipe cover 3, the elastic membrane 11 will expand to contact with the pressure sensor 10 within the set time range, causing the pressure data of the pressure sensor 10 to increase. According to the data change, if there is a gas leakage part on the outer tube cover 3, the heat in the outer tube cover 3 will be lost to the outside through the leakage part, making it impossible for the elastic membrane 11 to expand to contact with the pressure sensor 10 within the set time range. Therefore, the data change and time of the pressure sensor 10 can be effectively determined whether there is a leak in the outer tube cover 3, so that the outer tube cover 3 can be repaired in time, thereby further reducing the situation where the gas in the raw material tube 1 and the inner tube cover 2 leaks to the outside and causes environmental pollution. The inner wall of the groove 901 is provided with a pressure relief hole that is the same as the outside to maintain the air pressure balance inside the groove 901 and facilitate the expansion of the elastic membrane 11.

[0062] The third implementation method:

[0063] This embodiment makes a specific configuration of the structure of the detection cover 9 based on the second embodiment: Figure 10 The detection cover 9 includes a pair of semicircular covers 91, and a fastener is connected between the pair of semicircular covers 91. The outer ends of the semicircular covers 91 are fixedly connected to a pair of perforated plates 92. The fasteners are connected between the pair of perforated plates 92. The fasteners are bolts and nuts. The bolts pass through the perforated plates 92 on the pair of semicircular covers 91, and then the bolts are fixed by nuts. The grooves 901 and the pressure sensors 10 are arranged on one of the semicircular covers 91, and the color coating 14 is arranged on the other semicircular cover 91. Through the arrangement of the above structure, the disassembly and installation of the detection cover 9 are realized. When the pressure sensor 10 and the elastic membrane 11 are damaged, the detection cover 9 can be disassembled to facilitate the replacement of the two. The outer ends of the semicircular covers 91 are fixedly connected to a plurality of evenly distributed round rods, and the detection cover 9 can be conveniently rotated manually through the round rods.

[0064] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A hybrid energy storage buffer device for a gas-fired generator set, comprising a hardware group and a control system. The hardware group comprises a gas-fired generator set, a hybrid energy storage device, a product detection device, and a secondary combustion device, characterized in that: The hybrid energy storage device includes a supercapacitor and a pair of energy storage battery packs. The gas generator set is fixedly connected to the fuel supply device through a multi-layer tube. The gas generator set is fixedly connected to the secondary combustion device through an exhaust main pipe. The exhaust main pipe is fixedly connected to an exhaust branch pipe 1 and an exhaust branch pipe 2. The end of the exhaust branch pipe 1 is fixedly connected to the product detection device. The secondary combustion device is fixedly connected to an exhaust branch pipe 3. The ends of the exhaust branch pipes 2 and 3 are both fixedly connected to the multi-layer tube. The control system includes a combustion power generation system, an auxiliary power supply system, a power monitoring system, an output switching system, an early warning system, and a gas control system. The gas generator set is electrically connected to the combustion power generation system, and the hybrid energy storage device is electrically connected to the auxiliary power supply system. The power monitoring system is used to monitor the output power of the gas generator set, and the output switching system is used to control the power transmission between the gas generator set and the hybrid energy storage device, as well as the power transmission between the two and the load. The discharge main pipe, the first discharge branch pipe and the second discharge branch pipe are all fixedly connected with an electric control valve, and the electric control valve is electrically connected to the gas control system; The multi-layer tube comprises a pair of raw material tubes (1), the outer ends of the pair of raw material tubes (1) are fixedly connected to the same inner tube cover (2) and the same outer tube cover (3), and the outer tube cover (3) is sleeved on the outer side of the inner tube cover (2); a soft sleeve (6) is provided between the pair of raw material tubes (1), the end of the raw material tube (1) close to the gas generator set is fixedly connected to one end of the soft sleeve (6), the other end of the soft sleeve (6) is fixedly connected to a fixing ring (5), the inner surface of the inner tube cover (2) is fixedly connected to a first fixing ring (4) and a second fixing ring (7), and the two are respectively located on both sides of the fixing ring (5); a compression spring (8) is fixedly connected between the fixing ring (5) and the second fixing ring (7), and the compression spring (8) is movably sleeved on the outer side of the soft sleeve (6); the end faces of the raw material tube (1) and the first fixing ring (4) away from the gas generator set close to the soft sleeve (6) are located on the same plane.

2. The hybrid energy storage buffer device for a gas generator set according to claim 1, characterized in that: The discharge branch pipe 2 and the discharge branch pipe 3 are both fixedly passed through the outer pipe cover (3) and the inner pipe cover (2) and communicated with the interior of the inner pipe cover (2). The pipe opening of the discharge branch pipe 2 is located on the side of the first fixed ring (4) away from the shaping ring (5), and the pipe opening of the discharge branch pipe 3 is located between the shaping ring (5) and the second fixed ring (7).

3. The hybrid energy storage buffer device for a gas generator set according to claim 1, characterized in that: The outer end of the inner tube cover (2) is fixedly connected to an air outlet pipe (13), the air outlet pipe (13) is fixedly passed through the outer tube cover (3) and communicates with the outside, and the air outlet pipe (13) is located on a side of the second fixed ring (7) away from the shaping ring (5).

4. The hybrid energy storage buffer device for a gas generator set according to claim 1, characterized in that: The outer end of the outer tube cover (3) is provided with a strip-shaped opening (301), and the inner wall of the strip-shaped opening (301) is fixedly connected with an elastic membrane (11).

5. The hybrid energy storage buffer device for a gas generator set according to claim 4, characterized in that: The outer end of the outer tube cover (3) is fixedly and rotatably connected to a detection cover (9), the detection cover (9) is sleeved on the outer side of the strip-shaped opening (301), a groove (901) is provided inside the detection cover (9), and a pressure sensor (10) is fixedly connected to the inner wall of the groove (901), with the sensing end of the pressure sensor (10) facing the center line position of the outer tube cover (3).

6. The hybrid energy storage buffer device for a gas generator set according to claim 5, characterized in that: A pair of limiting rings (12) are fixedly connected to the outer end of the outer tube cover (3), and the detection cover (9) is rotatably connected between the pair of limiting rings (12).

7. The hybrid energy storage buffer device for a gas generator set according to claim 5, characterized in that: The outer surface of the detection cover (9) is coated with a colored coating (14); when the pressure sensor (10) is located directly above the outer tube cover (3), the colored coating (14) is located directly below the outer tube cover (3).

8. The hybrid energy storage buffer device for a gas generator set according to claim 5, characterized in that: The detection cover (9) comprises a pair of semicircular covers (91), a fastener is connected between the pair of semicircular covers (91), the outer ends of the semicircular covers (91) are fixedly connected to a pair of perforated plates (92), and the fastener is connected between the pair of perforated plates (92).

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