Pipeline unblocking and blocking self-checking diesel generating set

Abstract

The diesel generating set comprises a rack, the rack is provided with a diesel engine and a generator, the output end of the diesel engine is connected with the input end of the generator, and the diesel engine is provided with a combustion-supporting inlet, a waste gas outlet and an oil inlet; the oil supply assembly is used for conveying diesel oil to the oil inlet; the gas supply assembly is used for providing combustion-supporting gas for the combustion-supporting inlet and comprises an air compressor and a filter which are sequentially connected, the exhaust end of the filter is adjacent to a flow meter, and the bottom end of the filter is connected with a discharge valve; and the oxygen increasing assembly is used for increasing the oxygen concentration in the combustion-supporting gas. According to the pipeline unblocking and blocking self-checking diesel generating set, the concentration of oxygen entering the combustion-supporting inlet of the diesel engine is increased through the oxygenation assembly, sufficient combustion of diesel oil conveyed into the diesel engine by the oil supply assembly is promoted, the diesel oil combustion efficiency is improved, more mechanical energy can be output to a generator so as to improve the generating capacity, meanwhile, pollutant emission generated by combustion is reduced, and energy is saved. The subsequent waste gas treatment cost is reduced, and energy conservation and environmental protection are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel generators, and more particularly to a pipeline blockage self-checking diesel generator set. Background Art

[0002] A diesel generator mainly includes a diesel engine and a generator. Its operating principle is that the diesel engine burns diesel to generate heat energy, then converts the heat energy into mechanical energy, and finally the generator converts the mechanical energy into electrical energy.

[0003] In order to input clean air into the diesel engine, a filter is usually provided on the intake side of the diesel engine to filter out liquid droplets such as oil and water and particulate impurities such as dust in the air. As the use time increases, the intake resistance will increase, and in severe cases, the intake pipeline will be blocked. Therefore, sensors such as flow meters are usually provided on the air filter on the intake side of the diesel generator set to detect the operating condition of the intake pipeline. Before blockage, the oil, water, dust and other impurities attached to the surface of the filter element in the air filter are discharged in time to ensure the smoothness of the intake pipeline.

[0004] When the above-mentioned diesel generator set operates, although it can filter out impurities in the air, the main substance for the air to enter the diesel engine and undergo a combustion chemical reaction with diesel is oxygen. As an oxidizer, its volume fraction in the air is only 21%. That is, the concentration of the oxygen oxidizer in ordinary air is low. In high-altitude areas such as plateaus, the content of oxygen is even lower, resulting in incomplete combustion of diesel in the cylinder of the diesel engine, increasing diesel consumption, and increasing the content of harmful gases in incomplete combustion, increasing the subsequent treatment burden. Moreover, the limited heat generated during incomplete combustion leads to limited converted mechanical energy, thus affecting the power generation efficiency.

[0005] In summary, due to the limited content of oxygen used in the combustion process, the power generation efficiency is reduced, the subsequent waste gas treatment cost and diesel consumption are increased, and the adverse impact on the environment also increases. Therefore, it is necessary to improve the diesel generator set in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects existing in the prior art and provide a pipeline blockage self-checking diesel generator set with energy conservation, environmental protection, improved diesel combustion efficiency, increased power generation and reduced subsequent waste gas treatment cost.

[0007] To achieve the above technical effects, the technical solution of the present invention is: a pipeline blockage self-checking diesel generator set, including a frame, on which are provided: A diesel engine and a generator, the output end of the diesel engine is connected to the input end of the generator, and the diesel engine has a combustion-supporting inlet, an exhaust gas outlet and an oil inlet; An oil supply assembly for delivering diesel fuel to the fuel inlet. An air supply assembly for providing combustion-supporting gas to the combustion-supporting inlet, including an air compressor and a filter connected in sequence. A flow meter is adjacent to the exhaust end of the filter, and a discharge valve is connected to the bottom end. An oxygen-increasing assembly located between the filter and the combustion-supporting inlet for increasing the oxygen concentration in the combustion-supporting gas.

[0008] Preferably, to ensure the structural compactness of the equipment, facilitate long-term use, and increase the oxygen concentration content on the intake side of the diesel engine so that the diesel fuel can burn fully, the oxygen-increasing assembly includes an oxygen-increasing unit. The oxygen-increasing unit includes an oxygen-increasing shell for replaceably filling oxygen-making molecular sieves. The oxygen-increasing shell has inlets and outlets respectively provided at both ends of its inner cavity, which are connected to the combustion-supporting inlet and the filter respectively.

[0009] Preferably, to enable air to enter the oxygen-increasing shell from different angular directions and pass through the oxygen-increasing shell along different flow paths, so that the oxygen-making molecular sieves can fully absorb nitrogen in the air, extend the service life of the molecular sieves, and reduce the replacement frequency, the oxygen-increasing unit further includes a swapping unit for swapping the connection states of the inlets and outlets at both ends of the oxygen-increasing shell with the combustion-supporting inlet and the filter.

[0010] Preferably, to enable air to pass through the inner cavity of the oxygen-increasing shell from different positions and along different flow paths, so that the molecular sieves in the oxygen-increasing shell can fully absorb nitrogen in the air and improve the utilization rate of the oxygen-making molecular sieves, the swapping unit includes a driving unit and two swapping channels arranged side by side and respectively connected to the inlets and outlets at both ends of the oxygen-increasing shell. In both of the two swapping channels, a swapping slider that is hermetically fitted to the circumferential inner wall thereof slides. The driving unit drives the swapping sliders in the two swapping channels to slide in opposite directions, and both ends of the two swapping channels are connected to the combustion-supporting inlet and the filter respectively.

[0011] Preferably, to drive the two swapping sliders to move in opposite directions simultaneously, the driving unit includes a driving motor, a synchronous belt, and transmission wheels corresponding to the two swapping channels one by one. The driving motor is drivingly connected to one of the transmission wheels. The two transmission wheels are connected by the synchronous belt and are both coaxially connected with screws having opposite thread directions. The screws are in threaded cooperation with the swapping sliders.

[0012] Preferably, to promote the regeneration of the oxygen-making molecular sieves in the oxygen-increasing shell, heat exchange tubes with both ends respectively connected to the exhaust gas outlet and the outside are also densely arranged in the oxygen-increasing shell, so as to regenerate the oxygen-making molecular sieves in the oxygen-increasing shell.

[0013] Preferably, in order to further improve the diesel combustion efficiency and enhance the energy conservation and environmental protection performance of the device, the air supply assembly further includes a buffer tank. The buffer tank includes an inner tank body and a heating cylinder fixedly sleeved on the inner tank body and enclosing a heating chamber with the inner tank body. The inner tank body is communicated between the filter and the oxygenation assembly. The heating chamber is communicated with the exhaust gas outlet. Control valves are provided between the exhaust gas outlet and both the heating chamber and the heat exchange tube. The heating cylinder is provided with a heating outlet.

[0014] Preferably, for the convenience of continuous use of the device, the oxygenation assembly includes a switching unit and two oxygenation units. The switching unit is used to switch the working states of the two oxygenation units, so that the oxygenation shell of one of them is communicated between the filter and the combustion support inlet, and the molecular sieve in the oxygenation shell of the other is regenerated.

[0015] Preferably, in order to enable the oxygen-making molecular sieve in one of the two oxygenation shells to adsorb nitrogen in the air, so as to increase the air concentration entering the diesel cylinder and achieve full combustion of diesel, while the oxygen-making molecular sieve in the other oxygenation shell can be regenerated to facilitate the switching of the operating states of the two oxygenation units, the switching unit includes a switching three-way pipe and a rotating unit. A cylindrical switching shell is provided between the three ends of the switching three-way pipe. A switching valve that is rotationally fitted with and sealed to its inner wall is rotated within the switching shell. The switching valve has an L-shaped switching channel. Both ends of the channel are used to communicate with two of the ends of the switching three-way pipe. The rotating unit drives the switching valve to rotate. Four switching three-way pipes are provided, which are respectively communicated between the filter and the two oxygenation shells, between the combustion support inlet and the two oxygenation shells, between the exhaust gas outlet and the heat exchange tubes corresponding to the two oxygenation shells, and between the outside and the heat exchange tubes corresponding to the two oxygenation shells.

[0016] Preferably, in order to improve the regeneration effect of the oxygen-making molecular sieve and simultaneously cool down the diesel engine and the generator to extend the service life of the diesel engine and the generator, a cooling assembly is further included. The cooling assembly includes an air pump and a cooling shell communicated with the output end of the air pump. The cooling shell has a nozzle facing the diesel engine and the generator. The air pump has two input ends, one of which is communicated with the outside, and the other is communicated with the two oxygenation shells through a synchronous three-way pipe. A cylindrical synchronous shell is provided between the three ends of the synchronous three-way pipe. The synchronous valve has an L-shaped synchronous channel. Both ends of the synchronous channel are used to communicate with two of the ends of the synchronous three-way pipe. The synchronous valve is fixedly connected coaxially with the switching valve corresponding to the heat exchange tube and the outside.

[0017] In summary, compared with the prior art, the pipeline unblocking and self-checking diesel generator set of the present invention increases the oxygen concentration at the combustion-supporting inlet of the diesel engine through the oxygen-increasing component, promotes the full combustion of the diesel oil transported by the fuel supply component into the diesel engine, improves the diesel combustion efficiency, can output more mechanical energy to the generator to increase the power generation amount, and at the same time reduces the pollutant emissions generated by combustion, reduces the subsequent waste gas treatment cost, and realizes energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of another perspective of the present invention; Figure 3 is Figure 2 an exploded schematic diagram of Figure 4 is Figure 2 an exploded schematic diagram of another perspective; Figure 5 is a side view of the present invention; Figure 6 is a schematic connection structure diagram of the oxygen-increasing component and the temperature-reducing component of the present invention; Figure 7 is Figure 6 an exploded schematic diagram of Figure 8 is a schematic structural diagram of the oxygen-increasing unit of the present invention; Figure 9 is Figure 8 an exploded schematic diagram of Figure 10 is Figure 9 an enlarged view of part A of Figure 11 is Figure 9 a schematic transverse sectional structure diagram of Figure 12 is Figure 9 a schematic longitudinal sectional structure diagram of Figure 13 is a schematic structural diagram of the switching unit of the present invention; Figure 14 is Figure 13 an exploded schematic diagram of Figure 15 is Figure 14 a schematic longitudinal sectional structure diagram of Figure 16 is Figure 15 an enlarged view of part B of Figure 17 is a schematic structural diagram of the switching valve of the present invention; Figure 18 is Figure 17 a sectional view taken along line C-C of In the figure: 1. Frame; 11. Bottom plate; 12. Top plate; 13. First bracket; 14. Second bracket; 15. Roller; 16. Handle; 2. Diesel engine; 21. Combustion-supporting inlet; 22. Exhaust gas outlet; 221. Exhaust gas outlet pipe; 222. Control valve; 23. Fuel inlet; 3. Generator; 4. Air supply assembly; 41. Air compressor; 42. Filter; 43. Flowmeter; 44. Discharge valve; 45. Buffer tank; 451. Inner tank body; 452. Heating cylinder; 4521. Heating inlet; 4522. Heating outlet; 46. Aggregate pipe; 461. Discharge valve; 5. Oxygenation unit; 51. Oxygenation shell; 511. Shell body; 5111. Heat exchange port; 5112. Heat exchange shell; 5113. Discharge pipe; 5114. Sealing plug; 512. Shell cover; 5121. Locking sleeve; 513. Partition board; 514. Heat exchange pipe; 5141. Heat exchange fin; 5142. Spiral guide vane; 515. Sealing gasket; 52. Inlet and outlet; 53. Driving unit; 531. Driving motor; 532. Synchronous belt; 533. Driving wheel; 534. Screw rod; 535. Bearing; 536. Driving shell; 54. Reversing slider; 55. Locking unit; 551. Locking bolt; 552. Locking nut; 56. Return-shaped barrel; 561. Inlet and outlet barrel; 562. Docking cover; 57. Return-shaped cover; 6. Switching unit; 61. Switching three-way pipe; 6101. Combustion-supporting gas inlet three-way pipe; 6102. Combustion-supporting gas outlet three-way pipe; 6103. Exhaust gas inlet three-way pipe; 6104. Exhaust gas exhaust three-way pipe; 611. Switching shell; 612. Switching valve; 613. Switching channel; 614. Communication port; 62. Rotating unit; 621. Rotating motor; 622. Sprocket; 623. Chain; 624. Gear; 63. Sealing shell; 631. Upper shell cover; 632. End shell cover; 633. Positioning sleeve; 7. Cooling component; 71. Air pump; 72. Cooling shell; 721. Spray port; 73. Synchronous three-way pipe; 74. Synchronous shell; 75. Synchronous valve; 76. Synchronous channel; 77. Cooling three-way pipe; 771. Cooling three-way valve; 8. Oil supply component; 81. Fuel tank; 82. Oil pump; 9. Storage battery. Detailed implementation manners

[0019] The following combines the accompanying drawings and embodiments to further describe the detailed implementation manners of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0020] As Figures 1 - 18 shown, a kind of pipeline blockage self-checking diesel generator set of the present invention includes a frame 1, and the following are arranged on the frame 1: A diesel engine 2 and a generator 3, the output end of the diesel engine 2 is connected to the input end of the generator 3, and the diesel engine 2 has a combustion-supporting inlet 21, an exhaust gas outlet 22 and a fuel inlet 23; The fuel supply assembly 8 is used to convey diesel oil to the fuel inlet 23; The air supply assembly 4 is used to supply combustion-supporting gas to the combustion-supporting inlet 21, and includes an air compressor 41 and a filter 42 connected in sequence. A flow meter 43 is adjacent to the exhaust end of the filter 42, and a discharge valve 44 is connected to the bottom end; The oxygen-increasing assembly is located between the filter 42 and the combustion-supporting inlet 21 and is used to increase the oxygen concentration in the combustion-supporting gas.

[0021] When the diesel generator set operates, external air is introduced into the oxygen-increasing assembly through the air supply assembly 4. The oxygen-increasing assembly is used to perform oxygen-increasing treatment on the air, increase the oxygen concentration in the mixed gas, and output high-concentration oxygen, that is, combustion-supporting gas with an oxygen concentration higher than that in the external air. The combustion-supporting gas is conveyed into the cylinder of the diesel engine 2 through the combustion-supporting inlet 21. At the same time, the fuel supply assembly 8 conveys diesel oil into the diesel engine 2 through the fuel inlet 23. The diesel engine 2 is internally provided with a high-pressure nozzle, and diesel oil droplets are output into the cylinder through the high-pressure nozzle. The diesel oil droplets burn in the cylinder inside the diesel engine 2 to generate heat energy, and then drive the output shaft of the diesel engine 2 to rotate, that is, generate mechanical energy. The generator 3 converts the mechanical energy of the diesel engine 2 into electrical energy, realizing the conversion of the chemical energy of diesel and oxygen into heat energy, the heat energy into the mechanical energy of the rotation of the crankshaft of the diesel engine 2, and then the mechanical energy into electrical energy.

[0022] During the above operation process, since an oxygen-increasing assembly is provided between the air supply assembly 4 and the diesel engine 2, most of the impurity gases in the air except the combustion-supporting gas of oxygen can be removed through the oxygen-increasing assembly, and the oxygen concentration in the combustion-supporting gas is increased, making this concentration significantly higher than the oxygen concentration in the external air. The diesel engine 2 has the following significant advantages during operation: First, it promotes a more complete combustion reaction. High-purity oxygen can provide more sufficient oxygen for diesel combustion, enabling elements such as carbon and hydrogen in diesel to undergo more complete combustion chemical reactions with oxygen, reducing the generation of incomplete combustion products (such as carbon monoxide, soot, etc.), making the combustion more complete and releasing more heat; Second, it improves the combustion efficiency. A high-concentration oxygen environment will accelerate the speed of the combustion reaction, making the combustion process more intense and the corresponding combustion temperature higher. This helps the full combustion of diesel, converts more heat energy into mechanical energy, and thus improves the power generation efficiency; Third, it reduces pollutant emissions. More complete combustion can significantly reduce the emissions of pollutants such as carbon monoxide, hydrocarbons, and particulate matter, which is beneficial to environmental protection, reduces the later-stage waste gas treatment cost, and realizes energy conservation and environmental protection.

[0023] Specifically, such as Figures 1 - 5As shown in the figure, the frame 1 includes a horizontal bottom plate 11. A horizontal top plate 12 is fixed directly above the bottom plate 11. The bottom plate 11 and the top plate 12 are in the same length direction. One end of the bottom plate 11 is fixedly connected to the top plate 12 through a first bracket 13, and the other end of the bottom plate 11 is fixedly connected to the top plate 12 through a second bracket 14. Rollers 15 are provided below the bottom plate 11 to facilitate the movement of the equipment. A handle 16 is provided at one end of the top plate 12 to facilitate pushing or pulling the equipment for movement.

[0024] The diesel engine 2 and the generator 3 are both fixed above the bottom plate 11 and below the top plate 12. The operating process of the diesel engine 2 includes an intake stroke, a compression stroke, a power stroke, and an exhaust stroke that are executed cyclically, realizing the rotation of the crankshaft inside the diesel engine 2. The generator 3 converts the mechanical energy of the crankshaft rotation into electrical energy, which will not be elaborated here.

[0025] The air supply assembly 4 includes an air compressor 41. The air compressor 41 is fixed between the bottom plate 11 and the top plate 12. The intake end of the air compressor 41 is used to introduce external air, and the outlet end is connected to four filters 42 distributed in series in sequence. The filtration precisions of the four filters 42 at the outlet end of the air compressor 41 increase in sequence, mainly used for gradually filtering impurities of different sizes in the air. That is, along the air flow path direction, the four filters 42 sequentially achieve primary filtration, secondary filtration, tertiary filtration, and quaternary filtration, and the sizes of the filtered impurities gradually decrease to ensure that clean air can be output to the oxygenation assembly. The four filters 42 are all vertically arranged, and their outlet ends are all connected to flow meters 43, and the bottoms are connected to discharge valves 44. After the flow meter 43 detects that the flow rate is lower than the preset value of the equipment, it indicates that there is a blockage in the pipeline. At this time, the discharge valve 44 is opened to facilitate the discharge of the impurities accumulated on the inner wall filter element of the filter 42.

[0026] The air supply assembly 4 further includes an aggregate pipe 46. The aggregate pipe 46 is fixed above the bottom plate 11 and extends along the length direction of the bottom plate 11. One end of the aggregate pipe 46 is closed, and the other end is provided with a discharge valve 461. The aggregate pipe 46 is fixedly communicated with the chip discharge pipe at the bottom of the filter 42, so that after the discharge valve 44 is opened, the impurities filtered by the filter 42 can fall downward into the aggregate pipe 46. By regularly opening the discharge valve 461, the waste impurities collected in the aggregate pipe 46 can be discharged.

[0027] The oxygenation assembly is arranged above the top plate 12. After receiving the clean air provided by the air supply assembly 4, it separates the oxygen and other gases (mainly nitrogen) in the air to increase the oxygen concentration in the air, realizing the full combustion of the diesel inside the diesel engine 2, reducing the diesel consumption, improving the combustion efficiency and power generation, reducing the emission of pollutants and the cost of subsequent waste gas treatment, and achieving energy conservation and environmental protection.

[0028] The fuel supply assembly 8 includes a fuel tank 81. The fuel tank 81 includes a box body with an open top and fixed to the bottom plate 11, and a tank cover covering the box body, which facilitates replenishing diesel into the box body. An observation window is provided on the box body to observe the remaining amount of diesel in the fuel tank 81. A fuel pump 82 is fixed above the tank cover. The input end of the fuel pump 82 extends to the top inside the box body, and the output end is communicated with the fuel inlet 23. In this way, after the fuel pump 82 extracts the diesel in the fuel tank 81, it is transported to the cylinder of the diesel engine 2 through the fuel inlet 23 and mixed with high-concentration oxygen for combustion.

[0029] A storage battery 9 is also fixed on the bottom plate 11. The storage battery 9 is electrically connected to the generator 3 to store the electric energy generated by the generator 3.

[0030] A further improvement is that the oxygen-increasing assembly includes an oxygen-increasing unit 5. The oxygen-increasing unit 5 includes an oxygen-increasing shell 51 for replaceably filling oxygen-producing molecular sieves. The oxygen-increasing shell 51 has inlets and outlets 52 provided at both ends of its inner cavity, which are respectively connected to the combustion-supporting inlet 21 and the filter 42.

[0031] By filling oxygen-producing molecular sieves in the oxygen-increasing shell 51, after the clean air filtered by the filter 42 passes through the oxygen-increasing shell 51, it contacts the oxygen-producing molecular sieves in the oxygen-increasing shell 51. The oxygen-producing molecular sieves adsorb most of the nitrogen in the air, thereby increasing the oxygen concentration in the air passing through the inner cavity of the oxygen-increasing shell 51, enabling high-concentration oxygen to enter the diesel engine 2 for sufficient combustion of diesel, improving the power generation efficiency, and reducing pollutant emissions. The oxygen-producing molecular sieves can be replaceably placed in the hollow oxygen-increasing shell 51, which facilitates timely replacement when the oxygen-producing molecular sieves reach the end of their service life.

[0032] The oxygen-increasing unit 5 in the present invention mainly relies on oxygen-producing molecular sieves to adsorb nitrogen in the air to achieve the technical effect of separating nitrogen and oxygen and increasing the oxygen concentration in the air. Compared with other existing technologies, using oxygen-producing molecular sieves to increase the oxygen concentration, the oxygen-increasing unit 5 is relatively small and compact, with a simple structure, occupies a small space, is convenient to install on the frame 1 with limited space, and the oxygen-producing molecular sieves in the oxygen-increasing shell 51 can be replaced regularly, which is convenient for maintenance to achieve long-term efficient power generation of the present invention.

[0033] A further improvement is that the oxygen-increasing unit 5 further includes a swapping unit for swapping the communication states between the inlets and outlets 52 at both ends of the oxygen-increasing shell 51 and the combustion-supporting inlet 21 and the filter 42.

[0034] In the present invention, the two inlets and outlets 52 on the oxygenation shell 51 are respectively located at both ends of the oxygenation shell 51. For the convenience of distinction, the two inlets and outlets 52 are respectively defined as the first port and the second port. In the initial state, the first port is connected to the filter 42, and the second port is connected to the diesel engine 2. In the initial stage of the operation of the oxygenation unit 5, the clean air provided by the air supply assembly 4 enters the oxygenation shell 51 through the first port, and is discharged through the second port and then enters the combustion-supporting inlet 21. After operating for a period of time (the specific time can be flexibly adjusted according to the user), the first port and the second port are swapped through the swapping unit, so that the first port is connected to the diesel engine 2, and the second port is connected to the filter 42. In this way, the clean air generated by the air supply assembly 4 enters the oxygenation shell 51 through the second port and is discharged through the first port and enters the combustion-supporting inlet 21. After the same period of time, the swapping assembly swaps the connection states of the first port and the second port with the filter 42 and the diesel engine 2 again.

[0035] After adopting the above method, the first port and the second port can be swapped regularly. In this way, the clean air can pass through the oxygenation shell 51 along different paths. After the molecular sieve is filled in the oxygenation shell 51, the position of the molecular sieve remains fixed. Under different air flow paths, the air can contact different positions of the molecular sieve. Microscopically, both the side of the molecular sieve close to the first port and the side close to the second port can contact the air, so that the surface of the molecular sieve can fully and evenly absorb the nitrogen in the air, increasing the amount of nitrogen in the air that can be adsorbed by each molecular sieve and increasing the adsorption amount, thereby extending the replacement cycle of the molecular sieve. Macroscopically, through the swapping unit, the air can enter the oxygenation shell 51 from both sides of the oxygenation shell 51 at different time periods and contact the oxygen-producing molecular sieve. Compared with the prior art, where the intake side and the outlet side are fixed and more nitrogen is adsorbed on the intake side and less nitrogen is adsorbed on the outlet side, the oxygenation unit 5 of the present invention enables the oxygen-producing molecular sieve in the oxygenation shell 51 to be fully and evenly absorbed, ensuring the uniformity and consistency of the overall adsorption of the oxygen-producing molecular sieve inside the oxygenation shell 51, further extending the service life of the molecular sieve and reducing the replacement frequency.

[0036] A further improvement is that the swapping unit includes a driving unit 53 and two swapping channels which are arranged side by side and communicate with the inlets and outlets 52 at both ends of the oxygen-increasing shell 51 respectively. In both of the two swapping channels, a swapping slider 54 which is in sealing fit with the circumferential inner wall thereof slides. The driving unit 53 drives the swapping sliders 54 in the two swapping channels to slide in opposite directions. The two ends of the two swapping channels are respectively connected to the combustion-supporting inlet 21 and the filter 42. The driving unit 53 includes a driving motor 531, a synchronous belt 532 and transmission wheels 533 corresponding to the two swapping channels one by one. The driving motor 531 is drivingly connected to one of the transmission wheels 533. The two transmission wheels 533 are drivingly connected by the synchronous belt 532 and are both coaxially connected with screw rods 534 with opposite thread directions. The screw rods 534 are in threaded cooperation with the swapping sliders 54.

[0037] Specifically, as Figures 8 - 12 shown, the oxygen-increasing shell 51 includes a rectangular shell body 511 with an open top. The shell body 511 is fixed above the top plate 12. The two inlets and outlets 52 of the shell body 511 extend outwards to form rectangular inlet and outlet pipes. The inlet and outlet pipes extend along the length direction of the bottom plate 11. The two inlets and outlets 52 are distributed along the length direction of the bottom plate 11. Two partition plates 513 distributed along the length direction of the bottom plate 11 are fixed in the shell body 511. The partition plates 513 are densely provided with mesh holes. The aperture of the mesh holes is smaller than the outer diameter of the oxygen-making molecular sieve. The oxygen-making molecular sieve is filled between the two partition plates 513 and the inner wall of the shell body 511. The partition plates 513 are flush with the top of the shell body 511 and are connected with an elastic sealing gasket 515. The sealing gasket 515 is a rubber gasket. A shell cover 512 is rotatably arranged above the shell body 511. The shell cover 512 is connected with a locking unit 55. The locking unit 55 is used for locking the shell cover 512. In the locked state, the sealing gasket 515 is clamped between the shell cover 512, the shell body 511 and the partition plates 513. A discharge port located between the two partition plates 513 is arranged at the bottom of the shell body 511. The connection port of the discharge port is connected to a discharge pipe 5113 of the top plate 12. One end of the discharge pipe 5113 away from the discharge port is threadedly connected with a sealing plug 5114.

[0038] After adopting the above structure, when it is necessary to replace the oxygen-making molecular sieve, the sealing plug 5114 is opened, so that the oxygen-making molecular sieve located between the two partition plates 513 can be discharged. Then, after the sealing plug 5114 is screwed tightly at the end of the discharge pipe 5113, the locking of the shell cover 512 by the locking unit 55 is released, which facilitates the upward rotation of the shell cover 512 to open the shell body 511. Then, the oxygen-making molecular sieve can be supplemented between the two partition plates 513 of the shell body 511. After the supplementation is completed, the shell cover 512 is rotated downward, and the shell cover 512 is locked by the locking unit 55, so as to complete the rapid replacement of the oxygen-making molecular sieve.

[0039] The oxygenation unit 5 further includes a return bucket 56 sleeved outside the housing 511 and fixed to the top plate 12. The top of the return bucket 56 is fixedly covered with a return cover 57. The two inlet and outlet pipes are fixedly connected to the return bucket 56. The return bucket 56 and the return cover 57 enclose a rectangular channel connected end to end in sequence. The rectangular channel is formed by combining a swapping channel arranged side by side and a connecting channel arranged side by side. The extending directions of the swapping channel and the connecting channel are parallel to the width direction and the length direction of the bottom plate 11 respectively. The two swapping channels are respectively fixedly connected to the two inlets and outlets 52. The two connecting channels are respectively fixedly connected to two inlet and outlet buckets 561. The two inlet and outlet buckets 561 are respectively connected to the filter 42 and the diesel engine 2.

[0040] The driving unit 53 further includes a driving housing 536 fixed to the outer side wall of the return bucket 56. The synchronous belt 532 and the two transmission wheels 533 are both arranged in the driving cavity formed by enclosing the driving housing 536 and the return bucket 56. The driving motor 531 is fixed to the outer side wall of the driving housing 536 and is coaxially fixedly connected to one of the transmission wheels 533. The two transmission wheels 533 are connected by the synchronous belt 532. The two transmission wheels 533 are respectively coaxially fixedly connected with two screw rods 534. The screw rods 534 are fixedly connected to the transmission wheels 533 through concentric shafts. The concentric shafts penetrate through the side wall of the return bucket 56 in a sealed manner. At the ends of the two screw rods 534 away from the corresponding transmission wheels 533, there are bearings 535. The bearings 535, the screw rods 534 and the swapping sliders 54 are all located inside the return bucket 56. The swapping sliders 54 are sleeved outside the screw rods 534 in a sealed manner and are threadedly connected to the screw rods 534. The thread directions of the two screw rods 534 are opposite and the pitches are the same. The swapping sliders 54 are in sealed fit with the inner side wall of the return bucket 56 and the return cover 57. The inlet and outlet pipes are fixedly communicated with the inlets and outlets 52 and the inside of the return bucket 56. The housing cover 512 rotates above the return cover 57, and the axis of rotation is parallel to the width direction of the bottom plate 11. The two swapping sliders 54 are located on both sides of the axis of the inlet and outlet pipes.

[0041] After adopting the above structure, the driving motor 531 can drive one of the transmission wheels 533 to rotate, and the synchronous belt 532 is used to make the other transmission wheel 533 rotate. Since the screw rods 534 are coaxially fixedly connected to the transmission wheels 533, the two screw rods 534 rotate in opposite directions. And the thread directions of the two screw rods 534 are opposite, so that the two swapping sliders 54 move in opposite directions.

[0042] As Figure 11As shown, among the two swapping sliders 54, the right swapping slider 54 is located above the axis line of the inlet / outlet 52, and the left swapping slider 54 is located below the axis line of the inlet / outlet 52. According to the positions of the two swapping sliders 54, clean air enters the lower left part of the connection channel from the left inlet / outlet barrel 561, passes through the lower docking channel, enters the oxygenation shell 51 through the lower left inlet / outlet pipe, and contacts the molecular sieve. The combustion-supporting gas with increased oxygen concentration flows out from the upper right inlet / outlet pipe on the right side, flows downward in another docking channel, passes through the connection channel, and then flows out from the inlet / outlet barrel 561 in the lower right corner and enters the diesel engine 2.

[0043] The driving unit 53 can realize the reverse movement of the two swapping sliders 54. At the same time, the two swapping sliders 54 are adjusted so that the right swapping slider 54 in the figure moves downward and the left swapping slider 54 moves upward. After the movement is completed, the air filtered and purified by the filter 42 enters the upper right part of the connection channel from the upper left inlet / outlet barrel 561, then slides downward along the right docking channel, passes through the right inlet / outlet pipe, passes through the oxygenation shell 51 in the reverse direction, then flows out from the left inlet / outlet pipe, enters the left docking channel and flows downward, then flows upward, and then passes through the lower part of the right connection channel, enters the lower inlet / outlet barrel 561 and then enters the diesel engine 2. (It should be noted that the up, down, left, and right in this paragraph are all in the reference direction shown in Figure 11 the figure and do not represent the actual up, down, left, and right directions).

[0044] A further improvement is that heat exchange tubes 514 with both ends respectively communicating with the exhaust gas outlet 22 and the outside are densely arranged in the oxygenation shell 51 to regenerate the oxygen-making molecular sieve in the oxygenation shell 51; the air supply assembly 4 further includes a buffer tank 45. The buffer tank 45 includes an inner tank body 451 and a heating cylinder 452 fixedly sleeved on the inner tank body 451 and enclosing a heating chamber with the inner tank body 451. The inner tank body 451 is communicated between the filter 42 and the oxygenation assembly. The heating chamber is communicated with the exhaust gas outlet 22. Control valves 222 are arranged between the exhaust gas outlet 22 and both the heating chamber and the heat exchange tubes 514. The heating cylinder 452 is provided with a heating outlet 4522.

[0045] The specific structure of the heat exchange tubes 514 is as Figures 9 - 12As shown, the heat exchange tubes 514 extend along the length direction parallel to the bottom plate 11, are arrayed between two partition plates 513, heat exchange ports 5111 are arranged on both sides of the housing 511, the heat exchange ports 5111 are through holes, and are in one-to-one correspondence and communication with the heat exchange tubes 514. Heat exchange shells 5112 are also fixed on both sides of the housing 511, and the heat exchange shells 5112 and the housing 511 enclose a heat exchange cavity. A heat exchange elbow pipe communicating with the heat exchange cavity is fixed above the heat exchange shells 5112. Among the heat exchange elbow pipes on the two heat exchange shells 5112, one is communicated with the outside, and the other is communicated with the exhaust gas outlet 22.

[0046] As Figure 3 and Figure 4 As shown, in the air supply assembly 4, the buffer tank 45 is located on the side of the filter 42 away from the air compressor 41 and is fixed above the bottom plate 11. The inner tank body 451 of the buffer tank 45 is fixedly communicated with one of the inlet and outlet barrels 561 of the filter 42 and the oxygen enrichment shell 51. The heating inlet 4521 is arranged at the top of one side of the heating cylinder 452, and the heating outlet 4522 is arranged at the bottom of the other side of the heating cylinder 452. The exhaust gas outlet 22 of the diesel engine 2 is fixedly connected with two exhaust gas pipes 221. Control valves 222 are arranged on both of the two exhaust gas pipes 221, and are respectively fixedly communicated with the heating inlet 4521 and the heat exchange shell 5112 of the oxygen enrichment shell 51.

[0047] The buffer tank 45 can temporarily store the clean air filtered by multiple filters 42, realize air flow buffering, and avoid the air transportation being too fast or too slow.

[0048] During the operation of the diesel engine 2, after the diesel and the combustion-supporting gas of high-concentration oxygen undergo a combustion chemical reaction, high-temperature exhaust gas is generated. Usually, the temperature of the exhaust gas is 300 - 500 °C, which is significantly higher. By controlling the two control valves 222, the exhaust gas can be divided into two parts according to a set ratio. One part enters the heat exchange cavity through the heating inlet 4521, and then exchanges heat with the clean air temporarily stored in the inner tank body 451 through the side wall of the inner tank body 451 to realize preheating of the clean air, and then is discharged from the heating outlet 4522; while the other part of the high-temperature exhaust gas can enter one of the heat exchange shells 5112, enter the heat exchange tubes 514 through the heat exchange ports 5111, and during the flow in the heat exchange tubes 514, heat the oxygen production molecular sieve in the oxygen enrichment shell 51 through the tube wall of the heat exchange tubes 514, and then enter the other heat exchange shell 5112 and is discharged from the heat exchange elbow pipe. That is, after the diesel engine 2 operates, the generated high-temperature exhaust gas can be used to heat the clean air about to enter the diesel engine 2 and the oxygen production molecular sieve in the oxygen enrichment shell 51.

[0049] When high-temperature exhaust gas preheats the air before it enters the diesel engine 2, the temperature of the air can be increased while its density is decreased. When the diesel engine 2 operates, atomized diesel can be better mixed with oxygen, promoting full combustion, thereby improving the thermal efficiency of the generator 3 of the present invention and reducing fuel consumption. Moreover, when preheating the air entering the diesel engine 2 in cold air, it also helps the startup of the generator 3, reducing startup time and wear. In addition, using the preheating of the exhaust gas to preheat the intake air can achieve the recycling and reuse of energy, improving the energy utilization rate of the entire device and meeting the requirements of energy conservation and environmental protection.

[0050] When the high-temperature exhaust gas passes through the heat exchange tube 514, it can heat the oxygen-producing molecular sieve between the two partition plates 513, promoting the regeneration of the oxygen-producing molecular sieve. After the regeneration is completed, it is convenient for the oxygen-producing molecular sieve to continue adsorbing nitrogen, increasing the concentration of oxygen in the air to form a combustion-supporting gas with a high concentration of oxygen, so as to achieve full combustion of the diesel inside the diesel engine 2, reduce pollutant emissions, lower subsequent treatment costs, and improve combustion efficiency and power generation efficiency.

[0051] A further improvement is that a spiral guide vane 5142 is fixed inside the heat exchange tube 514. The spiral guide vane 5142 and the inner wall of the heat exchange tube 514 enclose a spiral flow channel, and heat exchange fins 5141 are arranged on the outer side wall of the heat exchange tube 514 along its axial direction.

[0052] After adopting the above structure, the thermal contact area between the heat exchange tube 514 and the high-temperature exhaust gas and the oxygen-producing molecular sieve is increased, improving the heat exchange efficiency. Moreover, through the enclosed spiral flow channel, the high-temperature exhaust gas can flow along a specific spiral trajectory, making it fully contact with the heat exchange tube 514, improving the heating efficiency, and thus promoting the regeneration of the oxygen-producing molecular sieve.

[0053] A further improvement is that the oxygen-increasing component includes a switching unit 6 and two oxygen-increasing units 5. The switching unit 6 is used to switch the working states of the two oxygen-increasing units 5, so that the oxygen-increasing shell 51 of one of them is connected between the filter 42 and the combustion-supporting inlet 21, and the molecular sieve in the oxygen-increasing shell 51 of the other is regenerated.

[0054] The two oxygen-increasing units 5 are closely arranged along the length direction of the bottom plate 11. By adjusting the operating states of the two oxygen-increasing units 5 through the switching unit 6, in one of the oxygen-increasing units 5, the oxygen-producing molecular sieve in the oxygen-increasing shell 51 can adsorb the filtered clean air to form a combustion-supporting gas with a high concentration of oxygen, improving the combustion efficiency, while facilitating the regeneration of the oxygen-producing molecular sieve in the oxygen-increasing shell 51 of the other oxygen-increasing unit 5 to restore its nitrogen adsorption ability, so as to facilitate the subsequent adjustment of the operating states of the two oxygen-increasing units 5 by the switching unit 6, enabling the diesel engine 2 to continuously introduce the combustion-supporting gas with a high concentration of oxygen.

[0055] Therefore, by alternately using the above two oxygen enrichment units 5, it is possible to continuously supply oxygen-rich air with an oxygen concentration higher than that in the air to the diesel engine 2, ensuring that the diesel engine 2 can continuously and stably burn diesel, which helps to maintain the stable operation and high power generation efficiency of the generator 3; the two oxygen enrichment units 5 work alternately, enabling the work of adsorbing nitrogen to increase the oxygen concentration to proceed continuously, avoiding the situation where the oxygen production molecular sieve in a single oxygen enrichment unit 5 cannot continue to adsorb nitrogen to increase the oxygen concentration after adsorption saturation, and improving the overall oxygen enrichment efficiency and equipment utilization rate of the device.

[0056] A further improvement is that the switching unit 6 includes a switching three-way pipe 61 and a rotating unit 62. A cylindrical switching shell 611 is provided between the three ends of the switching three-way pipe 61. A switching valve 612 that is hermetically fitted to its inner wall is rotatably arranged in the switching shell 611. The switching valve 612 has an L-shaped switching channel 613. Both ends of the channel are used to communicate with two of the ends of the switching three-way pipe 61. The rotating unit 62 drives the switching valve 612 to rotate. There are four switching three-way pipes 61, which are respectively connected between the filter 42 and the two oxygen enrichment shells 51, between the combustion-supporting inlet 21 and the two oxygen enrichment shells 51, between the exhaust gas outlet 22 and the heat exchange pipes 514 corresponding to the two oxygen enrichment shells 51, and between the outside and the heat exchange pipes 514 corresponding to the two oxygen enrichment shells 51.

[0057] The specific structure of the switching unit 6 Figures 13 - 16 As shown, its connection structure with the two oxygen enrichment units 5 is as Figure 6 and Figure 7 As shown, the switching unit 6 includes four switching three-way pipes 61. Each of the four switching three-way pipes 61 includes a cylindrical and hollow switching shell 611. The switching shell 611 is fixedly connected to a first pipe and two second pipes. The two second pipes are coaxial. The axis of the connection between the first pipe and the switching shell 611 is perpendicular to the axes of the two second pipes. To facilitate the distinction of the four switching three-way pipes 61, the four switching three-way pipes 61 are respectively defined as a combustion-supporting gas inlet three-way pipe 6101, a combustion-supporting gas outlet three-way pipe 6102, an exhaust gas inlet three-way pipe 6103, and an exhaust gas outlet three-way pipe 6104; as Figures 16 - 18 As shown, switching valves 612 are arranged in the switching shells 611 of the four switching three-way pipes 61. The outer surface of the switching valve 612 is hermetically fitted to the upper and lower inner walls and the circumferential inner wall of the switching shell 611. An L-shaped switching channel 613 is arranged on the switching valve 612. Both ends of the switching channel 613 extend to the circumferential outer edge of the switching valve 612.

[0058] More specifically, for the combustion-supporting gas inlet three-way pipe 6101, its first pipe is fixedly communicated with the inner tank body 451, and the two second pipes respectively penetrate through the inlet and outlet barrels 561 on the same side of the oxygenation shells 51 of the two oxygenation units 5 in a sealed and fixed manner. Moreover, communication ports 614 are arranged on the side walls of the two second pipes close to the ends, and the communication ports 614 are located inside the inlet and outlet barrels 561.

[0059] For the combustion-supporting gas outlet three-way pipe 6102, its first pipe is fixedly communicated with the combustion-supporting gas inlet 21, and the two second pipes respectively penetrate through the inlet and outlet barrels 561 on the other side of the oxygenation shells 51 of the two oxygenation units 5 in a sealed and fixed manner. Similarly, communication ports 614 are arranged on the side walls of the two second pipes close to the ends, and the communication ports 614 are located inside the inlet and outlet barrels 561.

[0060] For the waste gas inlet three-way pipe 6103, its first pipe is fixedly communicated with the waste gas outlet pipe 221, and the two second pipes are respectively communicated with the heat exchange elbows of the heat exchange shells 5112 on the same side of the two oxygenation shells 51; for the waste gas exhaust three-way pipe 6104, its first pipe is communicated with the outside, and the two second pipes are respectively communicated with the heat exchange elbows of the heat exchange shells 5112 on the other same side of the two oxygenation shells 51.

[0061] For the two switching valves 612 corresponding to the combustion-supporting gas inlet three-way pipe 6101 and the combustion-supporting gas outlet three-way pipe 6102, one ends of the two switching channels 613 are respectively communicated with their first pipes, and the other ends face the same direction, and this direction is the first direction parallel to the length direction of the bottom plate 11; while for the two switching valves 612 corresponding to the waste gas inlet three-way pipe 6103 and the waste gas exhaust three-way pipe 6104, one ends of the two switching channels 613 are respectively communicated with their first pipes, and the direction of the other ends is the second direction, and the second direction is always opposite to the first direction.

[0062] After adopting the above structure, during the operation of the present invention, the clean air after filtration and preheating can enter the switching valve 612 through the first pipe of the combustion-supporting gas inlet three-way pipe 6101, be discharged along the first direction and enter one of the oxygenation shells 51, and then enter the second pipe of the combustion-supporting gas outlet three-way pipe 6102 along the second direction, and enter the diesel engine 2 through the switching channels 613 of the switching valve 612 to burn with the atomized diesel.

[0063] After the combustion-supporting gas and diesel fuel are burned, high-temperature exhaust gas is generated. The exhaust gas first enters the exhaust gas intake three-way pipe 6103, and then enters the heat exchange shell 5112 along the second direction through the switching channel 613 of the switching valve 612. After that, it passes through the heat exchange pipe 514 in another oxygen-enriching shell 51 to heat and regenerate the oxygen-producing molecular sieve in the oxygen-enriching shell 51. Then, it enters one of the second pipes of the exhaust gas exhaust three-way pipe 6104 and enters the switching shell 611 along the first direction. After passing through the switching channel 613, it is discharged to the outside. In this way, when the device is operating, the oxygen-producing molecular sieve in one of the oxygen-enriching shells 51 adsorbs nitrogen to increase the oxygen concentration, while the oxygen-producing molecular sieve in the other oxygen-enriching shell 51 is regenerated.

[0064] By the rotation unit 62, the switching valves 612 of the four switching three-way pipes 61 can be driven to rotate simultaneously, so that among the four switching valves 612, the rotation directions of the two switching valves 612 corresponding to the combustion-supporting gas intake three-way pipe 6101 and the combustion-supporting gas outlet three-way pipe 6102 are opposite to the rotation directions of the remaining two switching valves 612, and the rotation speeds of the four switching valves 612 are the same, avoiding the complex structure of the device caused by setting multiple valves and the operation error of the device caused by the opening and closing errors of the valves.

[0065] Specifically, the rotation unit 62 includes a rotation motor 621. The rotation motor 621 is fixed above the switching shell 611 of the exhaust gas intake three-way pipe 6103 and is arranged downward. Its output shaft is fixedly connected coaxially with the switching valve 612 in the switching shell 611. The rotation unit 62 also includes a chain 623 and two sprockets 622. The two sprockets 622 are respectively fixedly connected coaxially below the two switching valves 612 corresponding to the exhaust gas intake three-way pipe 6103 and the exhaust gas exhaust three-way pipe 6104. In this way, when the rotation motor 621 operates, it drives the switching valve 612 corresponding to the exhaust gas intake three-way pipe 6103 to rotate, and then through the chain 623 and the two sprockets 622 in transmission connection, the switching valve 612 corresponding to the exhaust gas exhaust three-way pipe 6104 rotates synchronously. The outer diameters of the two sprockets 622 are the same, so that the two switching valves 612 rotate in the same direction at the same speed.

[0066] Above the switching shells 611 corresponding to the two sprockets 622, two meshing and identically sized gears 624 are provided. Among the two pairs of gears 624, two of the gears 624 are annular and are fixedly connected coaxially with the two sprockets 622. The gears 624 and the sprockets 622 have the same outer diameter. The remaining two gears 624 are respectively fixedly connected coaxially with the two switching valves 612 corresponding to the combustion-supporting gas intake three-way pipe 6101 and the combustion-supporting gas outlet three-way pipe 6102.

[0067] Due to the meshing design of the above-mentioned gear 624, the two switching valves 612 corresponding to the combustion-supporting gas inlet three-way pipe 6101 and the combustion-supporting gas outlet three-way pipe 6102 rotate in the opposite direction and at the same rotation rate as the two switching valves 612 corresponding to the waste gas inlet three-way pipe 6103 and the waste gas exhaust three-way pipe 6104, ensuring the operation of the device. The clean air passes through one of the oxygen-enriching shells 51, and after increasing the oxygen concentration, it can, together with the high-temperature waste gas generated by diesel combustion, either pass through the other oxygen-enriching shell 51 for heating and regenerating the oxygen-making molecular sieve in this oxygen-enriching shell 51, or be introduced between the inner tank body 451 and the heating cylinder 452 to preheat the air, improving the combustion efficiency and achieving the full utilization of thermal energy.

[0068] The two oxygen-enriching shells 51 are fixedly connected, and a sealing shell 63 is also fixedly connected between the two oxygen-enriching shells 51. The sealing shell 63 includes an upper shell cover 631 facing downward and two end shell covers 632 facing downward. Specifically, the bottom of the upper shell cover 631 is fixedly connected to the return-shaped covers 57 corresponding to the two oxygen-enriching units 5, and the top is hermetically and fixedly sleeved outside the two switching shells 611 corresponding to the waste gas inlet three-way pipe 6103 and the waste gas exhaust three-way pipe 6104. The bottoms of the two end shell covers 632 are respectively fixed above the switching shells 611 corresponding to the combustible gas inlet three-way pipe and the combustible gas outlet three-way pipe, and the tops are fixedly connected to the two ends of the bottom of the upper shell cover 631. The upper shell cover 631, the two end shell covers 632, and the two return-shaped covers 57 enclose a protection cavity, and the gear 624, the chain 623, and the sprocket 622 are all located in the protection cavity to ensure the stable operation of the rotating unit 62.

[0069] A positioning sleeve 633 with an axial direction parallel to the length direction of the bottom plate 11 is arranged above the upper shell cover 631. A locking sleeve 5121 is integrally formed on the shell cover 512. The shell covers 512 corresponding to the two oxygen-enriching units 5 are tightly connected to the positioning sleeve 633 through a locking unit 55. The locking unit 55 includes a locking bolt 551 and a locking nut 552 that are threadedly connected. After the shell cover 512 is hermetically covered on the shell body 511, the locking sleeve 5121 on the shell cover 512 is coaxial with the positioning sleeve 633. At this time, the rod part of the locking bolt 551 is passed through the positioning sleeve 633 and the two locking sleeves 5121, and then the locking nut 552 is screwed on, so that the shell covers 512 of the two oxygen-enriching units 5 can be tightly connected and hermetically covered on the two shell bodies 511 at the same time. After the locking state is released, the two shell covers 512 can be conveniently opened to replenish the oxygen-making molecular sieve into the two shell bodies 511, making the operation more convenient.

[0070] A further improvement is that it further includes a cooling component 7. The cooling component 7 includes an air pump 71 and a cooling shell 72 communicated with the output end of the air pump 71. The cooling shell 72 has a nozzle 721 facing the diesel engine 2 and the generator 3. The air pump 71 has two input ends, one of which is communicated with the outside, and the other is communicated with two oxygenation shells 51 through a synchronous three-way pipe 73. A cylindrical synchronous shell 74 is arranged between the three ends of the synchronous three-way pipe 73. The synchronous valve 75 has an L-shaped synchronous channel 76. The two ends of the synchronous channel 76 are used to communicate with two of the ends of the synchronous three-way pipe 73. The synchronous valve 75 is fixedly connected coaxially with the switching valve 612 corresponding to the heat exchange pipe 514 and the outside.

[0071] Specifically, as Figure 6 , Figure 7 , Figures 13 - 15 shown, the intake end of the air pump 71 is connected to a cooling three-way pipe 77. The cooling three-way pipe 77 has two input pipes and an output pipe. The output pipe is communicated with the cooling shell 72 through the air pump 71. Among the two input pipes, one is communicated with the outside, and the other is communicated with two oxygenation shells 51 through the synchronous three-way pipe 73. A cooling three-way valve 771 is arranged on the cooling three-way pipe 77. The cooling three-way valve 771 is used to select one of the input pipes to communicate with the output pipe.

[0072] After adopting the above structure, the cooling component 7 has two working modes. In the first working mode, the cooling three-way valve 771 controls the input pipe communicated with the outside to communicate with the output pipe. After the air pump 71 operates, it extracts external air and transports it into the cooling shell 72, and sprays out air flow from the nozzle 721 onto the diesel engine 2 and the generator 3 to dissipate heat and cool the diesel engine 2 and the generator 3. In the second working mode, the cooling three-way valve 771 controls the input pipe communicated with the synchronous three-way pipe 73 to communicate with the output pipe. After the air pump 71 operates, it extracts the gas in the oxygenation shell 51, making a negative pressure formed in the oxygenation shell 51, which is beneficial to promoting the regeneration of the oxygen-making molecular sieve in the oxygenation shell 51 and releasing the adsorbed nitrogen. The nitrogen is transported to the air pump 71. After the air pump 71 extracts the gas, it is also transported into the cooling shell 72, and the gas is sprayed out from the nozzle 721 to cool the diesel engine 2 and the generator 3.

[0073] In the above two working modes, except for collecting different gases at the input end, high-speed gas can be sprayed out through the nozzle 721 to dissipate heat and cool the diesel engine 2 and the generator 3, so as to extend the service life of the diesel engine 2 and the generator 3.

[0074] To be more specific, in the above-mentioned cooling component 7, the cooling shell 72 and the air pump 71 are both fixed below the top plate 12, the cooling shell 72 is adjacent to and directly above the diesel engine 2 and the generator 3, the nozzle 721 is located on the bottom surface of the cooling shell 72, the cooling shell 72 is stepped along the vertical direction, and its bottom surface size is larger than the top surface size to expand the blowing area and facilitate the fixed connection between the top and the top plate 12, the top of the cooling shell 72 is open, the cooling shell 72 and the top plate 12 are enclosed to form a cooling cavity, the output end of the air pump 71 is connected to the nozzle 721 through the cooling cavity, so that the air pump 71 can transport the introduced gas into the cooling cavity, and then spray the gas from the nozzle 721 to cool the diesel engine 2 and the generator 3 below.

[0075] The synchronous three-way pipe 73 includes a synchronous shell 74, which is cylindrical and fixed coaxially above the switching shell 611 corresponding to the exhaust three-way pipe 6104. The synchronous shell 74 is fixedly connected with a suction pipe and two suction pipes. The two suction pipes are coaxially and perpendicular to the axis of the suction pipe. The suction pipe is connected to the cooling three-way pipe 77. A synchronous valve 75 is rotated in the synchronous shell 74 and is sealed to the circumferential inner wall of the upper and lower inner walls. The synchronous valve 75 is provided with an L-shaped synchronous channel 76. Both ends of the channel 76 extend to the circumferential outer edge of the synchronization valve 75, and the synchronization valve 75 is fixedly connected coaxially with the switching valve 612 corresponding to the exhaust three-way pipe 6104, and the two ends of the synchronization channel 76 are oriented in the same direction as the two ends of the switching channel 613 of the above-mentioned switching valve 612; the two suction pipes are fixedly connected to two docking covers 562, and the two docking covers 562 correspond one by one to the two oxygenation units 5, and the docking covers 562 are fixedly connected to the outside of the inlet and outlet barrel 561 on one side of the circular barrel 56.

[0076] After adopting the above structure, since the switching valve 612 corresponding to the exhaust three-way pipe 6104 is fixedly connected with the synchronization valve 75 on the same axis, the rotating unit 62 can drive the two to rotate synchronously, and the directions of the two ends of the switching channel 613 on the switching valve 612 are consistent with the directions of the two ends of the synchronization channel 76 on the synchronization valve 75. Therefore, the oxygenation shell 51 corresponding to the air pump 71 and the oxygenation shell 51 through which the high-temperature exhaust gas discharged from the exhaust gas outlet 22 passes are the same oxygenation shell 51. When the oxygen-generating molecular sieve in the oxygen-enhancing shell 51 is regenerated, the gas in the oxygen-enhancing shell 51 can be extracted by the air pump 71, so that the oxygen-generating molecular sieve can release nitrogen, which passes through the inlet and outlet barrel 561, the docking cover 562, one of the suction pipes of the synchronous three-way pipe 73, the suction pipe of the synchronous three-way pipe 73, and then passes through one of the input pipes of the cooling three-way pipe 77 and is discharged from the output pipe. After passing through the air pump 71, it is ejected from the nozzle 721 of the cooling shell 72 to cool the diesel engine 2 and the generator 3. Then, the high-temperature exhaust gas generated by the operation of the diesel engine 2 passes through the heat exchange pipe 514 in the same oxygen-enhancing shell 51 to heat the oxygen-generating molecular sieve in the oxygen-enhancing shell 51 to promote the regeneration of the oxygen-generating molecular sieve.

[0077] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pipeline blockage self-checking diesel generator set, including a frame, characterized in that, The following are provided on the frame: A diesel engine and a generator, the output end of the diesel engine is connected to the input end of the generator, and the diesel engine has a combustion-supporting inlet, an exhaust gas outlet and a fuel inlet; A fuel supply assembly for delivering diesel to the fuel inlet; An air supply assembly for providing combustion-supporting gas to the combustion-supporting inlet, including an air compressor and a filter connected in sequence. A flow meter is adjacent to the exhaust end of the filter, and a discharge valve is connected to the bottom end; An oxygen-increasing assembly located between the filter and the combustion-supporting inlet for increasing the oxygen concentration in the combustion-supporting gas; the oxygen-increasing assembly includes an oxygen-increasing unit, and the oxygen-increasing unit includes an oxygen-increasing shell for replaceably filling oxygen-making molecular sieve. The oxygen-increasing shell has inlets and outlets provided at both ends of its inner cavity, which are respectively connected to the combustion-supporting inlet and the filter; the oxygen-increasing unit further includes a swapping unit for swapping the connection states of the inlets and outlets at both ends of the oxygen-increasing shell with the combustion-supporting inlet and the filter; the swapping unit includes a driving unit and two swapping channels arranged side by side and respectively communicating with the inlets and outlets at both ends of the oxygen-increasing shell. A swapping slider that is hermetically fitted to the circumferential inner wall thereof slides in both swapping channels. The driving unit drives the swapping sliders in the two swapping channels to slide in opposite directions. Both ends of the two swapping channels are respectively connected to the combustion-supporting inlet and the filter.

2. The pipeline blockage self-checking diesel generator set according to claim 1, wherein: The driving unit includes a driving motor, a synchronous belt and transmission wheels corresponding to the two swapping channels one by one. The driving motor is drivingly connected to one of the transmission wheels. The two transmission wheels are drivingly connected by the synchronous belt and are both coaxially connected with screws having opposite thread directions. The screws are in threaded cooperation with the swapping sliders.

3. The pipeline blockage self-checking diesel generator set according to claim 1, characterized in that: Heat exchange tubes with both ends respectively communicating with the exhaust gas outlet and the outside are also densely arranged in the oxygen-increasing shell to regenerate the oxygen-making molecular sieve in the oxygen-increasing shell.

4. The pipeline blockage self-checking diesel generator set according to claim 3, characterized in that: The air supply assembly further includes a buffer tank. The buffer tank includes an inner tank body and a heating cylinder fixedly sleeved on the inner tank body and enclosing a heating cavity with the inner tank body. The inner tank body is communicated between the filter and the oxygen-increasing assembly. The heating cavity is communicated with the exhaust gas outlet. Control valves are provided between the exhaust gas outlet and both the heating cavity and the heat exchange tubes. The heating cylinder is provided with a heating outlet.

5. The pipeline unblocking and self-checking diesel generator set according to claim 1, wherein: The oxygen-increasing assembly includes a switching unit and two oxygen-increasing units. The switching unit is used to switch the working states of the two oxygen-increasing units so that the oxygen-increasing shell of one of them is communicated between the filter and the combustion-supporting inlet, and the molecular sieve in the oxygen-increasing shell of the other is regenerated.

6. The pipeline blockage self-checking diesel generator set according to claim 5, wherein: The switching unit includes a switching three-way pipe and a rotating unit. A cylindrical switching housing is arranged between three ends of the switching three-way pipe. A switching valve that is rotationally fitted with and sealed to the inner wall thereof is rotatably arranged in the switching housing. The switching valve has an L-shaped switching channel, and two ends of the channel are used for communicating with two of the ends of the switching three-way pipe. The rotating unit drives the switching valve to rotate. There are four switching three-way pipes, which are respectively communicated between a filter and two oxygenation housings, between a combustion-supporting inlet and two oxygenation housings, between an exhaust gas outlet and heat exchange pipes corresponding to two oxygenation housings, and between the outside and heat exchange pipes corresponding to two oxygenation housings.

7. The pipeline blockage self-checking diesel generator set according to claim 6, characterized in that: It further includes a cooling component. The cooling component includes an air pump and a cooling housing communicated with an output end of the air pump. The cooling housing has nozzles facing the diesel engine and the generator. The air pump has two input ends, one of which is communicated with the outside, and the other is communicated with two oxygenation housings through a synchronous three-way pipe. A cylindrical synchronous housing is arranged between three ends of the synchronous three-way pipe. The synchronous valve has an L-shaped synchronous channel, and two ends of the synchronous channel are used for communicating with two of the ends of the synchronous three-way pipe. The synchronous valve is fixedly connected coaxially with the switching valve corresponding to the heat exchange pipe and the outside.

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