An explosion relief device, a gas engine and a generator set

Abstract

The present application relates to a deflagration venting device, a gas engine, and a generator set, and relates to the technical field of engines. The deflagration venting device includes a deflagration venting valve. A blocking assembly is provided on one side of the deflagration venting valve. The blocking assembly includes a blocking box. The deflagration venting valve communicates with the blocking box. Connecting pipes are provided on opposite side walls of the blocking box, and the connecting pipes communicate with the blocking box. A blocking block is provided in the blocking box. The blocking block is slidably connected to the inner wall of the blocking box along the axial direction of the connecting pipe. One side of the blocking block is spaced from the corresponding inner side wall of the blocking box. When the blocking block slides in the blocking box to one side of the blocking box, the blocking block closes the corresponding connecting pipe. The generator set uses a gas engine equipped with the deflagration venting device. By providing the blocking assembly and the deflagration venting valve, when deflagration occurs, the blocking assembly can cut off the gas transmission pipeline, and the deflagration venting valve can vent the high-pressure gas generated in the blocking box, thereby improving the safety of the equipment.

Description

Technical Field

[0001] The present application relates to the technical field of engines, and in particular, to an explosion relief device, a gas engine, and a generator set. Background Art

[0002] High-power stationary gas engines and generator sets often adopt a pre-mixed intake method. Gas and air are mixed in a mixer before the supercharger. The air-fuel ratio of the mixed gas is within the ignition range of the gas. The mixed gas then passes through the supercharger, intake chamber, intercooler, outlet chamber, and cylinder head air passage into the combustion chamber. There is a risk of ignition for the mixed gas in the entire flow path. For example: sparks are generated by the rotation of the supercharger impeller, high-temperature hot spots are generated by carbon deposition on the intake valve, or backfire occurs in the intake pipe during valve overlap. The combustion of the mixed gas in the intake flow path will cause deflagration. In severe cases, deflagration occurs in the engine intake pipeline, and the flame will also spread to the mixer, resulting in a sudden increase in pressure and damage to the air filter and mixer.

[0003] Currently, in response to the above problems, explosion relief valves are often installed in engines and generator sets. The explosion relief valves often use explosion relief diaphragms. Generally, an explosion relief port is opened on a pipeline or chamber through which gas flows, and then the explosion relief diaphragm is covered on the explosion relief port. When deflagration occurs in the pipeline or chamber, the high pressure tears the explosion relief diaphragm, and at this time, the corresponding chamber or pipeline is connected to the outside, realizing the explosion relief function.

[0004] In view of the above related technologies, although the explosion relief valve realizes the explosion relief of the pipeline or chamber, since the pipelines and chambers in the engine are all filled with combustible gas, when deflagration occurs, the flame generated by the deflagration will follow the pipeline and ignite all the gas in the pipelines or chambers, thereby causing damage to the pipelines and the equipment connected to the pipelines. Summary of the Invention

[0005] The purpose of the present application is to provide an explosion relief device, a gas engine, and a generator set that can cut off the flame generated by deflagration when deflagration occurs.

[0006] In a first aspect, an explosion relief device provided by the present application adopts the following technical solution:

[0007] An explosion relief device includes an explosion relief valve. A plugging assembly is arranged on one side of the explosion relief valve. The plugging assembly includes a plugging box. The explosion relief valve is communicated with the plugging box. Connecting pipes are arranged on opposite side walls of the plugging box. The connecting pipes are communicated with the plugging box. A plugging block is arranged in the plugging box. The plugging block is slidably connected to the inner wall of the plugging box along the axial direction of the connecting pipe. One side of the plugging block is spaced apart from the corresponding inner side wall of the plugging box. When the plugging block slides in the plugging box to one side of the plugging box, the plugging block closes the corresponding connecting pipe.

[0008] By adopting the above technical solutions, the present application can connect the plugging box into the gas transmission pipeline through the setting of the plugging box and the connecting pipe on the plugging box. Since there is a gap between the plugging block and the inner wall of the plugging box, the setting of the plugging block will not affect the normal flow of gas and ensure the normal transmission of gas.

[0009] When deflagration occurs at a certain place in the pipeline, since the plugging block is slidably connected to the inner wall of the plugging box, the side where deflagration occurs will cause the plugging block to slide away from the side where deflagration occurs. Furthermore, the plugging block can close the connecting pipe on the side away from where deflagration occurs, so that the position where deflagration occurs can be isolated from other devices, reducing the damage to other devices. At the same time, since a pressure relief valve is connected to the plugging box, it can relieve the high-pressure gas in the pipeline, thereby improving the safety of the pipeline.

[0010] Optionally, a first limiting groove is formed on the side wall of the plugging block; a limiting component is arranged on the inner wall of the plugging box. The limiting component includes a second limiting groove formed on the inner wall of the plugging box. When the plugging block slides in the plugging box, the first limiting groove and the second limiting groove can communicate with each other; a limiting block is inserted and fitted in the second limiting groove and is slidably connected to the inner wall of the second limiting groove; a reset elastic member is arranged between the limiting block and the inner wall of the second limiting groove, and both ends of the reset elastic member are respectively connected to the limiting block and the inner wall of the second limiting groove.

[0011] By adopting the above technical solutions, through the cooperative setting of the first limiting groove and the limiting component, when the plugging block moves in the plugging box, the first limiting groove and the second limiting groove communicate with each other. Under the elastic force of the reset elastic member, the limiting block will be clamped into the first limiting groove. At this time, the limiting block can lock the plugging block. Therefore, the plugging block can be positioned to ensure that after the plugging block closes the connecting pipe, it will not slide to cause the closing of the connecting pipe to be released.

[0012] Optionally, both the first limiting groove and the limiting component are provided with two. The two first limiting grooves are arranged at intervals along the axial direction of the connecting pipe on the side wall of the plugging block; the two limiting components are arranged at intervals along the axial direction of the connecting pipe on the inner wall of the closed box; along the axial direction of the connecting pipe, the two first limiting grooves are arranged between the two limiting components.

[0013] By adopting the above technical solutions, since deflagration may occur on both sides of the plugging block, both the first limiting groove and the limiting component are correspondingly provided with two, and the two first limiting grooves and the limiting components are arranged at intervals along the axial direction of the connecting pipe. Thus, through the cooperative setting of the first limiting groove and the corresponding limiting component, the plugging block can be locked at two positions.

[0014] Optionally, the limiting component further includes an installation box, which is inserted and cooperated with the second limiting groove and is slidably connected to the inner wall of the second limiting groove; the limiting block and the reset elastic member are both arranged in the installation box, and the limiting block is slidably connected to the inner wall of the installation box. The two ends of the reset elastic member are respectively connected to the limiting block and the bottom of the installation box; an adjusting bolt is connected to the outer wall of the bottom box of the installation box, and the axial direction of the adjusting bolt is arranged along the sliding direction of the limiting block in the installation box. One end of the adjusting bolt is rotatably connected to the installation box, and the other end is threadedly connected to the plugging box.

[0015] By adopting the above technical solution, the setting of the installation box provides an installation position for the limiting block and the reset elastic member. The cooperation setting of the installation box and the adjusting bolt enables the movement of the adjusting bolt to drive the installation box to move, and then synchronously drive the limiting block and the reset elastic member in the installation box to move. Since the adjusting bolt is threadedly connected to the plugging box, turning the adjusting bolt can move the installation box. Therefore, after the limiting block locks the plugging block, in order to reset the plugging block, the limiting block can be driven to disengage from the plugging block by turning the adjusting bolt, realizing the unlocking of the plugging block.

[0016] Optionally, return elastic members are arranged on both sides of the plugging block along the axial direction of the connecting pipe. The two ends of the return elastic member are respectively connected to the plugging block and the inner wall of the corresponding plugging box.

[0017] By adopting the above technical solution, the setting of the return elastic member can realize the automatic reset of the plugging block.

[0018] Optionally, the explosion relief valve includes an explosion relief port, which is penetrated and opened on the side wall of the plugging box; the explosion relief valve further includes a closing plate, a fixing rod and a pressurizing elastic member. The closing plate is arranged on the outer wall of the plugging box and can close the explosion relief port; the fixing rod is arranged along the thickness direction of the closing plate, and the pressurizing elastic member is arranged on the fixing rod. The two ends of the pressurizing elastic member are respectively connected to the closing plate and the fixing rod. [[ID=,14]]

[0019] By adopting the above technical solution, the explosion relief valve can realize the mutual communication between the inside and the outside of the plugging box through the explosion relief port, achieving the pressure relief effect; the setting of the closing plate, the fixing rod and the pressurizing elastic member enables the closing plate to close the explosion relief port under the pressure of the pressurizing elastic member to ensure that the plugging box is in a sealed state under normal circumstances and can transport gas; when the pressure in the plugging box is too high, the high-pressure gas can lift the closing plate, and at this time, explosion relief can be carried out again.

[0020] Optionally, a pressure-increasing nut is threadedly connected to the fixing rod, one end of the pressure-increasing elastic member is connected to the pressure-increasing nut, and the other end is connected to the closing plate.

[0021] By adopting the above technical solution, through the setting of the pressure-increasing nut, the pressure-increasing nut is threadedly connected to the fixing rod, and turning the pressure-increasing nut can change the pressure of the pressure-increasing elastic member arranged between the pressure-increasing nut and the closing plate on the closing plate, thereby changing the magnitude of the pressure for opening the closing plate.

[0022] Optionally, a closing collar is arranged in the plugging box, the outer side wall of the closing collar is slidably connected to the inner wall of the plugging box, and the closing collar closes the explosion vent; the plugging block is arranged in the closing collar and the closing collar is connected to the plugging block.

[0023] By adopting the above technical solution, the setting of the closing collar is used to install the plugging block, and at the same time, the setting of the closing collar can close the explosion vent opened on the side wall of the plugging box. Therefore, only when deflagration occurs and the plugging block is pushed open, that is, after the plugging block closes the corresponding connecting pipe, the explosion relief valve can start to work. This ensures that the high-pressure gas flow generated by deflagration can first push the plugging block to close the corresponding connecting pipe, and then conduct explosion relief.

[0024] In a second aspect, a gas engine provided by the present application adopts the following technical solution:

[0025] A gas engine includes a mixer, a supercharger, an intercooler, an intake chamber, a body, an exhaust chamber, and a silencer. The body includes an intake pipe, an exhaust pipe, and a crankcase. The mixer, the supercharger, the intercooler, the intake chamber, the intake pipe, the crankcase, the exhaust pipe, the exhaust chamber, and the silencer are sequentially interconnected through pipes; among the mixer, the supercharger, the intercooler, the intake chamber, the body, the exhaust chamber, and the silencer, explosion relief devices are arranged on the pipes connecting adjacent two devices.

[0026] By adopting the above technical solution, by arranging the explosion relief device, when deflagration occurs in each device of the gas engine set, the device where deflagration occurs can be cut off in time, thereby ensuring the safety of other devices. Therefore, the safety of the gas engine can be improved.

[0027] In a third aspect, a generator set provided by the present application adopts the following technical solution:

[0028] A generator set includes the above-mentioned gas engine.

[0029] By adopting the above technical solution, using a gas engine provided with an explosion relief device for power generation can improve the safety of the generator set.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. This application is provided with a plugging component. When deflagration occurs, it can cut off the gas transmission pipeline, thereby cutting off adjacent equipment and improving the safety of equipment where deflagration has not occurred.

[0032] 2. This application is provided with a pressure relief valve on the plugging box. Through the pressure relief valve, the high-pressure air flow generated inside the plugging box can be relieved, improving the safety of the equipment.

[0033] 3. This application closes the pressure relief port through a closed collar, so that only after the closing block is pushed open to close the connecting pipe can the high-pressure air flow be relieved from the pressure relief port, thereby ensuring the working sequence of the plugging component and the pressure relief valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of the pressure relief device according to Embodiment 1 of this application.

[0035] Figure 2 is the sectional structural schematic diagram of the pressure relief device according to Embodiment 1 of this application.

[0036] Figure 3 Figure 2 is the partial enlarged structural schematic diagram of part A in

[0037] Figure 4 Figure 2 is the partial enlarged structural schematic diagram of part B in

[0038] Figure 5 is the sectional structural schematic diagram of the pressure relief device according to Embodiment 2 of this application.

[0039] Figure 6 is the exploded structural schematic diagram of the plugging block according to Embodiment 2 of this application.

[0040] Figure 7 is the sectional structural schematic diagram of the pressure relief device according to Embodiment 2 of this application from another perspective.

[0041] In the figure, 1. Pressure relief valve; 11. Pressure relief port; 12. Closing plate; 13. Fixed rod; 14. Boosting elastic member; 15. Boosting nut; 16. Pressure guiding pipe;

[0042] 2. Plugging component; 21. Plugging box; 211. Guide groove; 22. Connecting pipe; 23. Connecting flange; 24. Plugging block; 241. Guide sliding rod; 242. Sealing plug; 243. First limiting groove; 25. Return elastic member; 26. Closed collar; 27. Fixed plate;

[0043] 3. Limit component; 31. Second limit groove; 32. Limit clamping block; 321. Guide inclined surface; 33. Reset elastic member; 34. Installation box; 35. Adjusting bolt; 36. Thread adjusting hole;

[0044] 4. Trigger component; 41. Trigger plate; 42. Trigger groove; 43. Anti-touch elastic member; 44. Trigger switch;

[0045] 5. Sealing component; 51. Sealing sliding groove; 52. Sealing plate; 53. Sucking magnet; 54. Electromagnet; 55. Pressure relief hole; 56. Connecting groove. Detailed implementation manners

[0046] The following Figure 1 - attached Figure 7 , further elaborate the present application in detail.

[0047] Embodiment 1:

[0048] An explosion relief device, referring to Figure 1 , includes an explosion relief valve 1 and a plugging component 2. The plugging component 2 includes a plugging box 21. Connecting pipes 22 are arranged on opposite sides of the plugging box 21. The two connecting pipes 22 are coaxially arranged and both are in communication with the plugging box 21. The explosion relief valve 1 is arranged on the plugging box 21 and is in communication with the plugging box 21. Connecting flanges 23 are arranged on the sides of the connecting pipes 22 away from the plugging component 2. The arrangement of the connecting pipes 22 and the connecting flanges 23 enables the plugging box 21 to be connected to the pipeline where the gas flows, and the arrangement of the explosion relief valve 1 can relieve the explosion when the gas in the pipeline explodes and burns.

[0049] Referring to 1 and Figure 2 , the plugging component 2 further includes a plugging block 24. A plurality of guide sliding rods 241 are arranged on the side wall of the plugging block 24. The length direction of the guide sliding rods 241 is arranged along the axial direction of the connecting pipe 22. A plurality of guide grooves 211 are formed on the inner side wall of the plugging box 21. The length direction of the guide grooves 211 is arranged along the axial direction of the connecting pipe 22; the guide sliding rods 241 and the guide grooves 211 are arranged in one-to-one correspondence. The guide sliding rods 241 are inserted and matched with the corresponding guide grooves 211 and the guide sliding rods 241 are slidably connected to the inner walls of the corresponding guide grooves 211 along the axial direction of the connecting pipe 22. Through the cooperative arrangement of the guide sliding rods 241 and the guide grooves 211, the plugging block 24 can slide along the axial direction of the connecting pipe 22 in the plugging box 21.

[0050] Referring to Figure 2 , one side wall of the plugging block 24 is spaced from the inner side wall of the corresponding plugging box 21. After the connecting pipes 22 on both sides of the plugging box 21 are connected to the pipeline where the gas flows, the gap between the plugging block 24 and the inner wall of the corresponding plugging box 21 can accommodate the gas to pass through, so that under normal circumstances, the plugging box 21 will not affect the normal flow of the gas.

[0051] Refer to Figure 2 Figure 2 , on both axial sides of the connecting pipe 22 along the upper edge of the plugging block 24, sealing insertion blocks 242 are arranged. The sealing insertion blocks 242 are frustum-shaped. The axis of the sealing insertion blocks 242 is collinear with the axis of the connecting pipe 22, and the area of the side of the sealing insertion block 242 away from the plugging block 24 along its own axis is smaller than the area of the side close to the plugging block 24; when the plugging block 24 slides in the plugging box 21 towards one side wall of the plugging box 21, the corresponding sealing insertion block 242 on the plugging block 24 can be inserted into the corresponding connecting pipe 22, so that the plugging block 24 can seal the connecting pipe 22, and thus the spaces on both sides of the plugging block 24 can be separated.

[0052] Refer to Figure 2 and Figure 3 Figure 3 , two first limiting grooves 243 are opened on the inner wall of one side of the plugging block 24, and the two first limiting grooves 243 are arranged at intervals along the axis of the connecting pipe 22; two limiting components 3 are arranged on the inner wall of the plugging box 21 at intervals along the axis of the connecting pipe 22; and the first limiting grooves 243 and the limiting components 3 are arranged in one-to-one correspondence. The limiting component 3 includes a second limiting groove 31, and along the axis of the connecting pipe 22, the two first limiting grooves 243 are arranged between the two second limiting grooves 31. Therefore, during the sliding process of the plugging block 24 in the plugging box 21, the first limiting groove 243 can communicate with the corresponding second limiting groove 31.

[0053] Refer to Figure 2 and Figure 3 Figure 3 , the limiting component 3 further includes a limiting block 32, a reset elastic member 33, an installation box 34 and an adjusting bolt 35. The installation box 34 is in plug-in fit with the second limiting groove 31 and the outer wall of the installation box 34 is slidably connected with the inner wall of the second limiting groove 31; the opening of the installation box 34 faces the plugging block 24. The limiting block 32 is in plug-in fit with the installation box 34 and the limiting block 32 is slidably connected with the inner wall of the installation box 34; the reset elastic member 33 is a spring. The reset elastic member 33 is arranged between the inner wall of one side of the installation box 34 facing the limiting block 32 and the limiting block 32, and both ends of the reset elastic member 33 are connected with the limiting block 32 and the inner wall of one side of the installation box 34 facing the limiting block 32 respectively. During the sliding process of the plugging block 24 in the plugging box 21, when the first limiting groove 243 communicates with the corresponding second limiting groove 31, the reset elastic member 33 pushes the limiting block 32 to slide towards the direction of the first limiting groove 243 under the action of its own elastic force and pushes the limiting block 32 into the corresponding first limiting groove 243. At this time, the limiting block 32 is stuck in the installation box 34 and the first limiting groove 243, and the plugging block 24 can be positioned and locked.

[0054] Refer to Figure 2 andFigure 3 On one side of the limit clamping block 32 facing the blocking block 24, there is a guiding inclined surface 321. The guiding inclined surface 321 extends obliquely away from the installation box 34 from the side close to the blocking block 24 towards the side far from the blocking block 24. Thus, during the process of the blocking block 24 sliding in the blocking box 21, when approaching the corresponding limit clamping block 32, the blocking block 24 comes into contact with the guiding inclined surface 321. The blocking block 24 can press the guiding inclined surface 321 into the installation box 34. And when the second limiting groove 31 communicates with the corresponding first limiting groove 243, the limit clamping block 32 can be snapped into the corresponding first limiting groove 243 under the action of the reset elastic member 33, realizing the locking of the blocking block 24.

[0055] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a threaded adjustment hole 36 is penetrated and opened on the bottom wall of the second limiting groove 31. The inner wall of the threaded adjustment hole 36 is threadedly connected with an adjustment bolt 35. The axial direction of the adjustment bolt 35 is collinear with the sliding direction of the limit clamping block 32 in the installation box 34. And one axial end of the adjustment bolt 35 is rotatably connected to the bottom of the installation box 34. Thus, when the adjustment bolt 35 is turned, the adjustment bolt 35 can drive the installation box 34 to slide in the second limiting groove 31. Furthermore, when the blocking block 24 is locked by the limit clamping block 32, the locking between the blocking block 24 and the limit clamping block 32 can be released by turning the corresponding adjustment bolt 35.

[0056] Refer to Figure 2 As shown in FIGS. and, return elastic members 25 are arranged on both side walls of the blocking block 24 along the axial direction of the connecting pipe 22. The return elastic members 25 are springs. The length direction of the return elastic members 25 is along the axial direction of the connecting pipe 22, and both ends of the return elastic members 25 are respectively connected to the blocking block 24 and the inner wall of the blocking box 21. Thus, after the locking between the blocking block 24 and the limit clamping block 32 is released, the return elastic members 25 can push the blocking block 24 to slide along the axial direction of the connecting pipe 22 in the blocking box 21, realizing the reset of the blocking block 24.

[0057] Refer to Figure 2 and Figure 4 As shown in FIGS. and, the explosion relief valve 1 includes an explosion relief port 11. The explosion relief port 11 is penetrated and opened on the side wall of the blocking box 21, and the blocking block 24 closes the explosion relief port 11. When the gas in the pipeline does not explode and burn, the blocking block 24 can close the explosion relief port 11, and at this time, each device can work normally.

[0058] The explosion relief valve 1 further includes a pressure guiding pipe 16, a closing plate 12, a fixing rod 13 and a pressurizing elastic member 14. The pressure guiding pipe 16 is arranged on the side wall of the plugging box 21 and the pressure guiding pipe 16 is communicated with the explosion relief port 11. The fixing rod 13 is inserted into the pressure guiding pipe 16 along the axial direction of the pressure guiding pipe 16 and the fixing rod 13 is fixedly connected with the plugging box 21. The closing plate 12 is arranged at one end of the pressure guiding pipe 16 away from the plugging box 21. The closing plate 12 closes the pressure guiding pipe 16. The closing plate 12 is slidably connected with the fixing rod 13 along the axial direction of the fixing rod 13. The pressurizing elastic member 14 is a spring. The pressurizing elastic member 14 is sleeved on the fixing rod 13. The length direction of the pressurizing elastic member 14 is arranged along the axial direction of the fixing rod 13. One end of the pressurizing elastic member 14 is connected with the closing plate 12 and the other end is connected with the fixing rod 13. Thus, the pressurizing elastic member 14 can abut the closing plate 12 against the pressure guiding pipe 16 to realize the sealing of the explosion relief port 11.

[0059] A pressurizing nut 15 is connected to the fixing rod 13 by a thread. One end of the pressurizing elastic member 14 is connected with the pressurizing nut 15 and the other end is connected with the closing plate 12. Thus, by screwing the pressurizing nut 15, the distance between the closing plate 12 and the pressurizing nut 15 can be adjusted. Therefore, the compression amount of the pressurizing elastic member 14 can be changed, and further the sealing strength of the closing plate 12 on the explosion relief port 11 can be changed.

[0060] The implementation principle of the embodiment of the present application is as follows: The two connecting pipes 22 on the explosion relief device are respectively connected with two devices. When the gas flows normally in the devices, the plugging block 24 is in the middle position of the plugging box 21, and at this time the gas flows normally.

[0061] When the gas product in one side device explodes and burns, the impact generated by the explosion and combustion will push the plugging block 24, so that the plugging block 24 closes the connecting pipe 22 of the other side device. At this time, the two devices are isolated, and the flame can be prevented from burning into the device on the other side and damaging the device on the other side.

[0062] Meanwhile, after the plugging block 24 moves, the explosion relief port 11 is communicated with the plugging box 21. Because the high-pressure gas generated by the explosion and combustion will lift the closing plate 12, the explosion relief function is completed. Since the plugging block 24 cuts off the gas pipeline, the explosion relief process can end quickly.

[0063] After the explosion relief, by screwing the adjusting bolt 35, the locking of the plugging block 24 is released. Then the plugging block 24 will automatically reset. After that, screw the adjusting bolt 35 to reset the limit block 32. At this time, the explosion relief device can be used again.

[0064] A gas engine includes a mixer, a supercharger, an intake chamber, a body, an exhaust chamber, and a silencer; the body includes a crankcase, an intake pipe, and an exhaust pipe; the mixer, the supercharger, the intake chamber, the intake pipe, the crankcase, the exhaust pipe, the exhaust chamber, and the silencer are sequentially connected to each other through pipes, and in the mixer, the supercharger, the intercooler, the intake chamber, the body, the exhaust chamber, and the silencer, explosion relief devices are provided on the pipes connecting adjacent two devices. After air and gas are mixed in the mixer, they are compressed by the supercharger and cooled by the intercooler, enter the engine combustion chamber to burn and are discharged through the exhaust chamber, and finally are discharged from the engine through the silencer.

[0065] A generator set uses a gas engine equipped with the above explosion relief device.

[0066] The implementation principle of the embodiments of the present application is: explosion relief devices are provided in the intake process of the gas engine and the generator set to timely release the combustion explosion pressure of the mixture in the intake flow passage.

[0067] Explosion relief devices are provided in the exhaust process of the gas engine and the generator set to timely release the combustion explosion pressure of the combustion exhaust gas in the exhaust flow passage.

[0068] When the engine and the generator set are running, in the process from the mixing of gas and air to the combustion chamber, the exhaust process after combustion, and the process of residual exhaust gas entering the crankcase, through the explosion relief devices in the whole process of intake, exhaust, and crankcase ventilation, the gas engine and the generator set are equipped with a complete explosion relief function. During operation, if there is a combustion explosion of the mixture, combustion exhaust gas, and residual exhaust gas, the flow pipe of the gas can be cut off in time by the plugging block 24 in the explosion relief device and the pressure can be released through the explosion relief valve 1, and the parts will not be damaged due to sudden pressure rise. At the same time, due to the rapid release of pressure, the temperature decreases, so that the flame goes out by itself.

[0069] Embodiment 2:

[0070] An explosion relief device, referring to Figure 5 , the difference between this embodiment and Embodiment 1 is that the plugging assembly 2 further includes a closed collar 26, and a plurality of guiding sliding rods 241 are arranged on the outer side wall of the closed collar 26. Thus, through the cooperation of the guiding sliding rods 241 and the guiding grooves 211, the closed collar 26 is slidably connected to the inner wall of the plugging box 21 along the axial direction of the connecting pipe 22 in the plugging box 21.

[0071] The plugging block 24 is inserted into the closed collar 26 along the axial direction of the connecting pipe 22, and fixing plates 27 are arranged on both axial sides of the closed collar 26 along the axial direction of the connecting pipe 22; along the axial direction of the connecting pipe 22, the plugging block 24 abuts against the two fixing plates 27. Thus, the arrangement of the fixing plates 27 enables the plugging block 24 to be connected to the sealing collar.

[0072] One side of the plugging block 24 is spaced apart from the closed collar 26, so that after the plugging box 21 is connected to the corresponding pipeline, the space between the plugging block 24 and the closed collar 26 can accommodate the passage of gas. The first limiting groove 243 is formed on the closed collar 26. Through the cooperation of the first limiting groove 243 and the limiting component 3, the positioning and locking of the closed collar 26 can be realized.

[0073] The closed collar 26 is provided for installing the plugging block 24 and enabling the explosion vent 11 to be opened on the four side walls of the plugging box 21, increasing the installation positions of the explosion vent 11.

[0074] Refer to Figure 5 and Figure 6 As shown in

[0075] Trigger components 4 are arranged on both axial side walls of the plugging block 24 along the connecting pipe 22. The trigger component 4 includes a trigger plate 41. Trigger grooves 42 are formed on both axial sides of the plugging block 24 along the connecting pipe 22. The trigger plate 41 is inserted into the trigger groove 42 and is slidably connected to the inner wall of the trigger groove 42. Therefore, the trigger plate 41 can slide axially along the connecting pipe 22 in the trigger groove 42.

[0076] An anti-touch elastic member 43 is arranged between the trigger plate 41 and the bottom of the corresponding trigger groove 42. The anti-touch elastic member 43 is a spring, and the length direction of the anti-touch elastic member 43 is arranged along the axial direction of the connecting pipe 22. Both ends of the anti-touch elastic member 43 are respectively connected to the trigger plate 41 and the bottom of the corresponding trigger groove 42. Thus, the anti-touch elastic member 43 can support the trigger plate 41 to prevent the trigger plate 41 from sliding freely in the trigger groove 42.

[0077] Refer to Figure 5 and Figure 7 As shown in Figure 7 On the closed collar 26, a sealing component 5 is provided. The sealing component 5 includes a sealing chute 51. The sealing chute 51 is formed on the inner wall of one side of the closed collar 26 facing the plugging block 24, and the opening of the sealing chute 51 faces the plugging block 24; the sealing component 5 further includes a sealing plate 52. The sealing plate 52 is inserted into the sealing chute 51 and is slidably connected to the inner wall of the sealing chute 51. When the sealing plate 52 slides out of the sealing chute 51, one side of the sealing plate 52 facing the plugging block 24 contacts the plugging block 24, and the other side is inserted into the sealing chute 51, so that after the sealing plate 52 slides out, the gap between the plugging block 24 and the closed collar 26 can be sealed, and at this time, the spaces on both sides of the plugging block 24 can be separated.

[0078] On one side of the closed plate 52 facing the fixed rod 13, a number of attracting magnets 53 are provided. On the bottom of the sealing chute 51, a number of electromagnets 54 are provided. The attracting magnets 53 and the electromagnets 54 are arranged in one-to-one correspondence, and the trigger switch 44 is electrically connected to the electromagnet 54 to control the opening and closing of the electromagnet 54.

[0079] A pressure relief hole 55 is penetrated and opened on the bottom of the sealing chute 51. The pressure relief hole 55 is communicated with the explosion vent 11. Communication grooves 56 are opened on the two side walls of the closed plate 52 along the axial direction of the connecting pipe 22. The communication grooves 56 are communicated with the sealing chute 51. Thus, when the closed plate 52 slides out, the spaces on both sides of the closed plate 52 can be communicated with the pressure relief hole 55 through the communication grooves 56 to achieve pressure relief.

[0080] The implementation principle of the embodiment of the present application is as follows: When deflagration occurs simultaneously on both sides of the plugging block 24 and the deflagration power is not much different, at this time, the deflagration impacts on both sides of the plugging block 24 will impact the plugging block 24 simultaneously, causing the plugging block 24 to be in the exact middle of the plugging box 21 and unable to close the equipment on both sides. However, at this time, the deflagration impacts on both sides of the plugging block 24 will simultaneously push the trigger plates 41 on both sides of the plugging block 24, so that both trigger switches 44 are turned on. Cooperating with the electromagnet 54, the closed plate 52 slides out of the sealing chute 51. At this time, the pipelines on both sides of the plugging block 24 are closed to each other, and at the same time, the spaces on both sides of the plugging block 24 are communicated with the explosion vent valve 1 through the communication grooves 56 to achieve the explosion vent function.

[0081] The embodiments of the specific implementation manners are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An explosion relief device, comprising an explosion relief valve (1), characterized in that, On one side of the explosion relief valve (1), there is a plugging component (2). The plugging component (2) includes a plugging box (21). The explosion relief valve (1) is in communication with the plugging box (21). Connecting pipes (22) are arranged on opposite side walls of the plugging box (21). The connecting pipes (22) are in communication with the plugging box (21). A plugging block (24) is arranged in the plugging box (21). The plugging block (24) is slidably connected to the inner wall of the plugging box (21) along the axial direction of the connecting pipe (22). One side of the plugging block (24) is spaced from the corresponding inner side wall of the plugging box (21). When the plugging block (24) slides in the plugging box (21) to one side of the plugging box (21), the plugging block (24) closes the corresponding connecting pipe (22). The explosion relief valve (1) includes an explosion relief opening (11). The explosion relief opening (11) is penetratingly formed in the side wall of the plugging box (21). The explosion relief valve (1) further includes a closing plate (12), a fixing rod (13), and a boosting elastic member (14). The closing plate (12) is arranged on the outer side wall of the plugging box (21) and the closing plate (12) can close the explosion relief opening (11). The fixing rod (13) is arranged along the thickness direction of the closing plate (12). The boosting elastic member (14) is arranged on the fixing rod (13) and both ends of the boosting elastic member (14) are respectively connected to the closing plate (12) and the fixing rod (13). A closing collar (26) is arranged in the plugging box (21). The outer side wall of the closing collar (26) is slidably connected to the inner wall of the plugging box (21), and the closing collar (26) closes the explosion relief opening (11). The plugging block (24) is arranged in the closing collar (26) and the closing collar (26) is connected to the plugging block (24). Trigger components (4) are arranged on both side walls of the plugging block (24) along the axial direction of the connecting pipe (22). Thus, when an explosion occurs on one side of the plugging block (24), the corresponding trigger component (4) can be triggered. A sealing component (5) is arranged on the closing collar (26). When the trigger component (4) is triggered, the sealing component (5) can close the gap between the plugging block (24) and the closing collar (26). At this time, the spaces on both sides of the plugging block (24) can be separated.

2. The explosion venting device according to claim 1, characterized in that, A first limiting groove (243) is formed on the side wall of the plugging block (24). A limiting component (3) is arranged on the inner wall of the plugging box (21). The limiting component (3) includes a second limiting groove (31). The second limiting groove (31) is formed on the inner wall of the plugging box (21). When the plugging block (24) slides in the plugging box (21), the first limiting groove (243) and the second limiting groove (31) can communicate with each other. A limit block (32) is inserted and fitted in the second limit groove (31), and the limit block (32) is slidably connected to the inner wall of the second limit groove (31); a reset elastic member (33) is arranged between the limit block (32) and the inner wall of the second limit groove (31), and two ends of the reset elastic member (33) are respectively connected to the limit block (32) and the inner wall of the second limit groove (31).

3. The explosion venting device according to claim 2, characterized in that, There are two first limit grooves (243) and two limit assemblies (3). The two first limit grooves (243) are axially spaced along the connecting pipe (22) and are opened on the side wall of the plugging block (24). The two limit assemblies (3) are axially spaced along the connecting pipe (22) and are arranged on the inner wall of the closed box. Axially along the connecting pipe (22), the two first limit grooves (243) are arranged between the two limit assemblies (3).

4. The explosion venting device according to claim 2, wherein, The limit assembly (3) further includes a mounting box (34). The mounting box (34) is inserted and fitted with the second limit groove (31) and is slidably connected to the inner wall of the second limit groove (31). The limit block (32) and the reset elastic member (33) are both arranged in the mounting box (34). The limit block (32) is slidably connected to the inner wall of the mounting box (34). Two ends of the reset elastic member (33) are respectively connected to the limit block (32) and the bottom of the mounting box (34). An adjusting bolt (35) is connected to the outer side wall of the bottom box of the mounting box (34). The axial direction of the adjusting bolt (35) is arranged along the sliding direction of the limit block (32) in the mounting box (34). One end of the adjusting bolt (35) is rotatably connected to the mounting box (34), and the other end is threadedly connected to the plugging box (21).

5. The explosion venting device according to claim 1, wherein, Return elastic members (25) are arranged on both sides of the plugging block (24) axially along the connecting pipe (22). Two ends of the return elastic members (25) are respectively connected to the plugging block (24) and the inner wall of the corresponding plugging box (21).

6. The explosion venting device according to claim 1, wherein, A boosting nut (15) is threadedly connected to the fixing rod (13). One end of the boosting elastic member (14) is connected to the boosting nut (15), and the other end is connected to the closing plate (12).

7. A gas engine installed with the explosion relief device described in any one of the above claims 1-6, characterized in that, It includes a mixer, a supercharger, an intercooler, an intake cavity, a body, an exhaust cavity and a silencer. The body includes an intake pipe, an exhaust pipe and a crankcase. The mixer, the supercharger, the intercooler, the intake cavity, the intake pipe, the crankcase, the exhaust pipe, the exhaust box and the silencer are sequentially interconnected through pipes. Among the mixer, the supercharger, the intercooler, the intake cavity, the body, the exhaust cavity and the silencer, explosion relief devices are arranged on the pipes connecting adjacent two devices.

8. A generator set, characterized in that, It includes a gas engine according to claim 7 above.

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