Integrated cylinder cover of natural gas engine

Abstract

The utility model discloses an integrated cylinder cover of a natural gas engine, which comprises a cover body, a connecting component arranged below the cover body, conveying components mounted on two sides of the cover body, filtering components arranged on the conveying components, and cooling components arranged on the filtering components and the cover body. Natural gas which is not fully combusted when the integrated cylinder cover of the natural gas engine is used can be recycled, meanwhile, the filtering assembly is arranged on the conveying assembly, the recycled natural gas can be filtered, a filtering part can be periodically cleaned, follow-up use of the filtering part is facilitated, and the service life of the filtering part is prolonged. And meanwhile, the cooling assembly is arranged between the cover body and the filtering assembly, so that the natural gas engine and the integrated cylinder cover can be cooled, recycled natural gas can be cooled in an auxiliary mode, the engine is prevented from being overheated, and the working stability and reliability of the engine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder heads, and more specifically, to an integrated cylinder head for a natural gas engine. Background Art

[0002] The integrated cylinder head for a natural gas engine is a key component designed specifically for natural gas engines. Its characteristic lies in integrating part of the structures of the cylinder head and the engine block to form an integral structure, which not only improves the sealing performance and performance of the engine but also simplifies the processing and assembly processes.

[0003] However, during actual use, the integrated cylinder head for a natural gas engine cannot recycle the unburned natural gas, which is likely to cause environmental pollution and energy waste. Moreover, some particulate matters in the recycled natural gas are likely to damage the natural gas engine and the integrated cylinder head. Summary of the Utility Model

[0004] In view of the problems in the related art, the present utility model proposes an integrated cylinder head for a natural gas engine to overcome the above-mentioned technical problems existing in the prior related art.

[0005] For this purpose, the specific technical solution adopted by the present utility model is as follows:

[0006] An integrated cylinder head for a natural gas engine includes a cover body. A connection component is arranged below the cover body, and conveying components are installed on both sides of the cover body. The conveying components include an intake pipe and an exhaust pipe respectively installed on both sides of the cover body. A control valve is arranged on the exhaust pipe. One end of the control valve is connected to a first conveying pipe. One end of the first conveying pipe is connected to an auxiliary cylinder. A conveying pump is arranged at one end of the auxiliary cylinder. The output end of the conveying pump is connected to a second conveying pipe. One end of the second conveying pipe is connected to the intake pipe;

[0007] A filtering component is arranged on the conveying component. The filtering component includes a plurality of filtering frames arranged on the inner wall of the auxiliary cylinder. A filter screen plate is installed on the inner wall of the filtering frame. One side of the filter screen plate is in contact with a cleaning plate. One side of the cleaning plate is fixedly connected to an auxiliary frame. One end of the auxiliary frame penetrates through the auxiliary cylinder and is fixedly connected to an electric telescopic rod. One end of the electric telescopic rod is installed with a fixing frame. The fixing frame is fixedly connected to the auxiliary cylinder. A cooling component is arranged on the filtering component and the cover body.

[0008] Further, in order to improve the sealing performance between the engine and the integrated cylinder head, the connection component includes a connection seat arranged below the cover body. A plurality of sealing strips are arranged on the inner wall of the connection seat. Two of the sealing strips are in contact with the cover body, and the other two sealing strips are in contact with the engine block. A plurality of connection screws are arranged on the engine block. One end of the connection screw penetrates through the connection seat and is threadedly connected to the cover body.

[0009] Further, in order to assist in cooling the engine and the integrated cylinder head, the cooling assembly includes cooling interfaces provided on both sides of the cover body. One end of each cooling interface is connected to a cooling pipe. One end of one of the cooling pipes is connected to a circulation pump. The delivery end of the circulation pump and one end of the other cooling pipe are connected to a cooling box. The cooling box and the auxiliary cylinder are penetrated by a plurality of cooling fins, and both ends of the cooling fins are provided with semiconductor refrigeration sheets.

[0010] Further, in order to supplement the coolant inside the cooling box, a filling hopper is provided above the cooling box, and a sealing plug is installed on the inner wall of the filling hopper.

[0011] Further, in order to monitor the coolant in the cooling box, a liquid level sensor is installed on the cooling box.

[0012] Further, a shielding cover is installed above the cover body, and a plurality of mounting screws are provided on the shielding cover. One end of the mounting screw is threadedly connected to the cover body.

[0013] Further, a filter cover is installed at one end of the intake pipe, and a filter net is provided on the filter cover.

[0014] Advantages of the present utility model:

[0015] (1) By means of the conveying assembly provided on the cover body, it is convenient to recycle the unburned natural gas during the use of the integrated cylinder head of the natural gas engine, reducing the pollution to the environment and energy waste caused by the unburned natural gas. At the same time, the filtering assembly provided in the conveying assembly can not only filter the recycled natural gas, reducing the damage to the natural gas engine and the integrated cylinder head caused by some particulate matters in the recycled natural gas, but also regularly clean the filtering components, which is beneficial to the subsequent use of the filtering components.

[0016] (2) By means of the connection assembly provided on the cover body, it is convenient to seal the connection between the natural gas engine and the integrated cylinder head, improving the tightness between the natural gas engine and the integrated cylinder head. At the same time, the cooling assembly provided between the cover body and the filtering assembly can not only cool the natural gas engine and the integrated cylinder head, but also assist in cooling the recycled natural gas, preventing the engine from overheating and improving the working stability and reliability of the engine. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of an integrated cylinder head of a natural gas engine according to an embodiment of the present invention;

[0019] Figure 2 It is a partial structural schematic diagram of a connection component of an integrated cylinder head of a natural gas engine Figure 1 ;

[0020] Figure 3 It is a partial structural schematic diagram of a connection component of an integrated cylinder head of a natural gas engine Figure 2 ;

[0021] Figure 4 It is a schematic structural diagram of a conveying component and a cooling component of an integrated cylinder head of a natural gas engine according to an embodiment of the present invention;

[0022] Figure 5 It is a schematic structural diagram of a filtering component of an integrated cylinder head of a natural gas engine according to an embodiment of the present invention;

[0023] Figure 6 It is a schematic structural diagram of a cooling interface of an integrated cylinder head of a natural gas engine according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1. Cover body; 2. Connection component; 201. Connection seat; 202. Sealing strip; 203. Engine body; 204. Connection screw; 3. Conveying component; 301. Inlet pipe; 302. Outlet pipe; 303. Control valve; 304. First conveying pipe; 305. Auxiliary cylinder; 306. Conveying pump; 307. Second conveying pipe; 4. Filtering component; 401. Filter frame; 402. Filter net plate; 403. Cleaning plate; 404. Auxiliary frame; 405. Electric telescopic rod; 406. Fixed frame; 5. Cooling component; 501. Cooling interface; 502. Cooling pipe; 503. Circulation pump; 504. Cooling box; 505. Cooling fin; 506. Semiconductor refrigeration sheet; 6. Filling hopper; 7. Sealing plug; 8. Liquid level sensor; 9. Shielding cover; 10. Mounting screw; 11. Filter cover; 12. Filter net. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1:

[0028] Please refer to Figures 1 - 4 , a one-piece cylinder head for a natural gas engine, including a cover body 1. The cover body 1 is a one-piece cylinder head body. A shielding cover 9 is installed above the cover body 1. A plurality of mounting screws 10 are arranged on the shielding cover 9. The number of mounting screws 10 is ten. One end of the mounting screw 10 is threadedly connected to the cover body 1. A connecting component 2 is arranged below the cover body 1. The connecting component 2 includes a connecting seat 201 arranged below the cover body 1. A plurality of sealing strips 202 are arranged on the inner wall of the connecting seat 201. The number of sealing strips 202 is four. Two of the sealing strips 202 are in contact with the cover body 1, and the other two sealing strips 202 are in contact with the engine body 203. A plurality of connecting screws 204 are arranged on the engine body 203. The number of connecting screws 204 is nine. One end of the connecting screw 204 penetrates through the connecting seat 201 and is threadedly connected to the cover body 1;

[0029] Conveying components 3 are installed on both sides of the cover body 1. The conveying components 3 include an intake pipe 301 and an exhaust pipe 302 respectively installed on both sides of the cover body 1. A control valve 303 is arranged on the exhaust pipe 302. One end of the control valve 303 is connected to a first conveying pipe 304. One end of the first conveying pipe 304 is connected to an auxiliary cylinder 305. A maintenance port (not shown in the figure) is provided above the auxiliary cylinder 305 during actual use. A sealing cover (not shown in the figure) is hinged on the inner wall of the maintenance port. Two lock catches (not shown in the figure) are installed between the sealing cover and one side of the auxiliary cylinder 305. One end of the auxiliary cylinder 305 is provided with a delivery pump 306. The output end of the delivery pump 306 is connected to a second conveying pipe 307. One end of the second conveying pipe 307 is connected to the intake pipe 301. A filter cover 11 is installed at one end of the intake pipe 301. A filter net 12 is arranged on the filter cover 11;

[0030] Through the connecting component 2 arranged on the cover body 1, it is convenient to seal the connection between the natural gas engine and the one-piece cylinder head. At the same time, the conveying component 3 arranged on the cover body 1 is convenient for recycling the natural gas that is not fully burned when the one-piece cylinder head of the natural gas engine is in use, reducing the pollution to the environment and energy waste caused by the unburned natural gas. The filter cover 11 and the filter net 12 arranged on the intake pipe 301 can effectively filter impurities in the natural gas, prevent impurities from entering the engine and the interior of the one-piece cylinder head, damage the engine and the components of the one-piece cylinder head, and extend the service life of the engine and the one-piece cylinder head.

[0031] Embodiment 2:

[0032] Please refer to Figures 1 - 6, an integrated cylinder head for a natural gas engine, including a filtering component 4 arranged on a conveying component 3. The filtering component 4 includes a plurality of filter frames 401 arranged on the inner wall of an auxiliary cylinder 305. The number of filter frames 401 is three. A filter mesh plate 402 is installed on the inner wall of the filter frame 401. The aperture of the filter mesh plate 402 is less than or equal to 2.5 microns, which can block the particulate matter in the insufficiently burned natural gas. One side of the filter mesh plate 402 is in contact with a cleaning plate 403. One side of the cleaning plate 403 is fixedly connected to an auxiliary frame 404. One end of the auxiliary frame 404 penetrates through the auxiliary cylinder 305 and is fixedly connected to an electric telescopic rod 405. A sealing gasket (not shown in the figure) is provided at the penetration of the auxiliary cylinder 305 during actual use, and a sealing sleeve (not shown in the figure) is provided at the penetration of the auxiliary frame 404 during actual use. The sealing sleeve is in contact with the sealing gasket. One end of the electric telescopic rod 405 is installed with a fixing frame 406, and the fixing frame 406 is fixedly connected to the auxiliary cylinder 305;

[0033] A cooling component 5 is arranged on the filtering component 4 and the cover body 1. The cooling component 5 includes cooling interfaces 501 arranged on both sides of the cover body 1. One end of the cooling interface 501 is connected to a cooling pipe 502. A heat preservation cover is installed on the surface of the cooling pipe 502 and the second conveying pipe 307 during actual use. One end of one of the cooling pipes 502 is connected to a circulation pump 503. The conveying end of the circulation pump 503 and one end of the other cooling pipe 502 are connected to a cooling box 504 for storing coolant. A filling hopper 6 is arranged above the cooling box 504. A sealing plug 7 is installed on the inner wall of the filling hopper 6. A liquid level sensor 8 is installed on the cooling box 504. A plurality of cooling fins 505 penetrate through the cooling box 504 and the auxiliary cylinder 305. The number of cooling fins 505 is two. The inner wall of the cooling fin 505 is of a hollow structure. Semiconductor refrigeration chips 506 are arranged at both ends of the cooling fin 505. The refrigerating end of the semiconductor refrigeration chip 506 is located inside the cooling fin 505, and the heating end of the semiconductor refrigeration chip 506 is located outside the cooling fin 505. A cooling cavity is formed on the cover body 1, and the cooling cavity is communicated with the cooling port;

[0034] The semiconductor refrigeration chip 506, the liquid level sensor 8, the circulation pump 503, the electric telescopic rod 405, the conveying pump 306, and the control valve 303 are electrically connected to a controller during actual use. The controller, the semiconductor refrigeration chip 506, the liquid level sensor 8, the circulation pump 503, the electric telescopic rod 405, the conveying pump 306, and the control valve 303 are electrically connected to an external power supply;

[0035] By means of the filter component 4 provided in the conveying component 3, not only can the recycled natural gas be filtered, but also the filter mesh plate 402 can be regularly cleaned. At the same time, the cooling component 5 provided between the cover body 1 and the filter component 4 can not only cool the natural gas engine and the integrated cylinder head, but also assist in cooling the recycled natural gas. The filling hopper 6, the sealing plug 7 and the liquid level sensor 8 provided in the cooling box 504 cooperate with each other to facilitate the detection and replenishment of the coolant in the cooling box 504.

[0036] In summary, by means of the above technical solution of the present invention, when in use, through the filter cover 11 and the filter mesh 12 provided in the air inlet pipe 301, the impurities in the natural gas can be effectively filtered to prevent the impurities from entering the interior of the engine and the integrated cylinder head. After entering the engine and the integrated cylinder head, burning occurs and when discharging through the air outlet pipe 302, the control valve 303 and the delivery pump 306 cooperate with each other, and then it is transported to the auxiliary cylinder 305 through the first delivery pipe 304. In the auxiliary cylinder 305, it is filtered by the filter mesh plate 402 provided in the filter frame 401. At the same time, through the cooperation of the auxiliary frame 404, the electric telescopic rod 405 and the cleaning plate 403 provided in the auxiliary cylinder 305, it is convenient to clean the filter mesh plate 402 and reduce the occurrence of blockage of the filter mesh plate 402. After filtration, through the cooperation of the cooling fins 505 and the semiconductor refrigeration sheet 506, it is convenient to cool the filtered gas. Then, the gas is transported to the second delivery pipe 307 and the air inlet pipe 301 by the delivery pump 306 and enters the engine and the integrated cylinder head. When the engine and the integrated cylinder head are cooled, through the cooperation of the cooling pipe 502 and the circulation pump 503 provided in the cooling box 504, it is convenient to circulate and cool the coolant in the cooling box 504, which is beneficial to cooling the natural gas engine and the integrated cylinder head. The filling hopper 6, the sealing plug 7 and the liquid level sensor 8 provided in the cooling box 504 cooperate with each other to facilitate the detection and replenishment of the coolant in the cooling box 504.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated cylinder head for a natural gas engine, characterized in that, It includes a cover body (1), a connection component (2) is arranged below the cover body (1), conveying components (3) are installed on both sides of the cover body (1), the conveying components (3) include an air inlet pipe (301) and an air outlet pipe (302) respectively installed on both sides of the cover body (1), a control valve (303) is arranged on the air outlet pipe (302), one end of the control valve (303) is connected to a first conveying pipe (304), one end of the first conveying pipe (304) is connected to an auxiliary cylinder (305), a conveying pump (306) is arranged at one end of the auxiliary cylinder (305), the output end of the conveying pump (306) is connected to a second conveying pipe (307), and one end of the second conveying pipe (307) is connected to the air inlet pipe (301); A filtering component (4) is arranged on the conveying component (3), the filtering component (4) includes a plurality of filtering frames (401) arranged on the inner wall of the auxiliary cylinder (305), a filter screen plate (402) is installed on the inner wall of the filtering frame (401), a cleaning plate (403) is in contact with one side of the filter screen plate (402), one side of the cleaning plate (403) is fixedly connected to an auxiliary frame (404), one end of the auxiliary frame (404) penetrates through the auxiliary cylinder (305) and is fixedly connected to an electric telescopic rod (405), a fixing frame (406) is installed at one end of the electric telescopic rod (405), the fixing frame (406) is fixedly connected to the auxiliary cylinder (305), and a cooling component (5) is arranged on the filtering component (4) and the cover body (1).

2. The integrated cylinder head of a natural gas engine according to claim 1, characterized in that The connection component (2) includes a connection seat (201) arranged below the cover body (1), a plurality of sealing strips (202) are arranged on the inner wall of the connection seat (201), two of the sealing strips (202) are in contact with the cover body (1), the other two sealing strips (202) are in contact with an engine body (203), a plurality of connection screws (204) are arranged on the engine body (203), and one end of the connection screw (204) penetrates through the connection seat (201) and is threadedly connected to the cover body (1).

3. The integrated cylinder head of a natural gas engine according to claim 1, characterized in that, The cooling component (5) includes cooling interfaces (501) arranged on both sides of the cover body (1), one end of the cooling interface (501) is connected to a cooling pipe (502), one end of one of the cooling pipes (502) is connected to a circulation pump (503), the conveying end of the circulation pump (503) and one end of the other cooling pipe (502) are connected to a cooling box (504), a plurality of cooling fins (505) penetrate through the cooling box (504) and the auxiliary cylinder (305), and semiconductor refrigeration chips (506) are arranged at both ends of the cooling fins (505).

4. The integrated cylinder head of a natural gas engine according to claim 3, characterized in that, A filling hopper (6) is arranged above the cooling box (504), and a sealing plug (7) is installed on the inner wall of the filling hopper (6).

5. The integrated cylinder head of a natural gas engine according to claim 3, characterized in that, A liquid level sensor (8) is installed on the cooling box (504).

6. The integrated cylinder head of a natural gas engine according to claim 1, characterized in that, A shielding cover (9) is installed above the cover body (1), a plurality of mounting screws (10) are arranged on the shielding cover (9), and one end of the mounting screw (10) is threadedly connected to the cover body (1).

7. The integrated cylinder head of a natural gas engine according to claim 1, characterized in that, One end of the intake pipe (301) is installed with a filter cover (11), and a filter screen (12) is arranged on the filter cover (11).

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