Air valve of marine diesel engine

Abstract

The utility model relates to the technical field of diesel engine air valves, in particular to a marine diesel engine air valve which comprises a valve body and a semi-fixed clamping seat ring assembly, the semi-fixed clamping seat ring assembly comprises an output pipe, a locking ring, an extension ring and a connecting ring, the output pipe is detachably connected with the valve body and located on one side of the valve body, the locking ring is detachably connected with the output pipe, and the extension ring is located on the other side of the valve body. The locking ring is detachably connected with the output pipe and located at the end, away from the valve body, of the output pipe, the extension ring is detachably connected with the locking ring and located on the side, away from the output pipe, of the locking ring, and the connecting ring is detachably connected with the extension ring and located on the side, away from the locking ring, of the extension ring. Therefore, the problem that the output end of the air valve is detachably connected with the seat ring, and the pressure of the air valve is gradually increased as time goes on, so that the seat ring is frequently damaged is positively and effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine air valves, in particular to a ship diesel engine air valve. Background Art

[0002] Marine diesel engines have high thermal efficiency, good economy, easy starting, and great adaptability to various types of ships. After their introduction, they were quickly used as ship propulsion power, and diesel engines almost completely replaced steam engines. However, during the normal maintenance cycle of marine diesel engines, the working condition of the valve seat must be checked, and the scaling condition of the internal cooling channel must be checked. At the same time, after working for a certain period of time, the sealing surface of the valve disc will fatigue and wear under the combined action of thermal stress and mechanical stress. At this time, the exhaust valve seat needs to be replaced. If the sealing ring of the cooling chamber is aging and leaking, but the valve seat is not damaged, only the sealing ring needs to be replaced. The above two methods will damage the valve seat and increase operating costs.

[0003] The prior art, patent number (CN202021422911.0) mentions a device for disassembling a valve seat ring of a marine diesel engine, including a screw rod, which is provided with a jack cylinder body, a support ring, a pressure nut and a cone seat connected in sequence from top to bottom, and the cone seat is fixed to the lower end of the screw rod, and four movably connected pull-up cone blocks are provided on the cone seat, and the lower end of the pull-up cone block is movably connected to the cone seat, and the top is movably connected to the pressure nut, and the jack cylinder body and the support ring are both detachably connected to the screw rod. The structure is simple, reliable, low-cost, and easy to operate. Tests have proved that the operation is convenient and the structure is simple, which greatly improves work efficiency and reduces the labor of maintenance staff. The valve seat can be removed without damaging the exhaust valve seat, and the use of a hydraulic jack saves time and effort; low cost, no need for on-site power supply, no pollution, and will not affect the use effect of existing equipment.

[0004] In the prior art, the fixed seat ring in the air valve is replaced with a seat ring disassembly device, which actively and effectively solves the problem that if the sealing ring of the cooling chamber is aged and leaking, but the valve seat is not damaged, only the sealing ring needs to be replaced. The above two methods will damage the valve seat of the air valve and increase the operating cost. However, the output end of the air valve will be detachably connected to the seat ring, and the pressure of the air valve will gradually increase with the passage of time, which will often cause damage to the seat ring. Utility Model Content

[0005] The utility model aims to provide a marine diesel engine air valve, which solves the problem that the output end of the air valve is detachably connected to the seat ring, and the pressure of the air valve gradually increases with the passage of time, thereby frequently causing damage to the seat ring.

[0006] To achieve the above-mentioned purpose, the utility model adopts a ship diesel engine valve, including a valve body and a semi-fixed snap-fit ​​seat ring assembly, the semi-fixed snap-fit ​​seat ring assembly including an output pipe, a locking ring, an extension ring and a connecting ring, the output pipe is detachably connected to the valve body and is located on one side of the valve body, the locking ring is detachably connected to the output pipe and is located at one end of the output pipe away from the valve body, the extension ring is detachably connected to the locking ring and is located on a side of the locking ring away from the output pipe, and the connecting ring is detachably connected to the extension ring and is located on a side of the extension ring away from the locking ring.

[0007] Among them, the semi-fixed snap-fit ​​seat ring assembly also includes a fixing ring and a friction pattern. The fixing ring is detachably connected to the locking ring and is located on the outer surface of the locking ring. The friction pattern is fixedly connected to the connecting ring and is located inside the connecting ring.

[0008] Among them, the semi-fixed snap-fit ​​seat ring assembly also includes a locking cavity and a locking tube, the locking cavity is fixedly connected to the connecting ring and is located inside the connecting ring, and the locking cavity is arranged on one side of the friction pattern, and the locking tube is detachably connected to the connecting ring and is located inside the ring of the connecting ring.

[0009] In which, the semi-fixed snap-fit ​​seat ring assembly also includes a locking block and a positioning ring, the locking block is detachably connected to the locking tube and is located on the outer surface of the locking tube, and the locking block is arranged inside the locking cavity, and the positioning ring is detachably connected to the locking tube and is located on the side of the locking outer surface tube away from the locking block.

[0010] Among them, the ship diesel engine air valve also includes a mounting assembly, which includes a mounting ring, a mounting hole and a screw. The mounting ring is detachably connected to the valve body and is located on the outer surface of the valve body. The mounting hole is fixedly connected to the mounting ring and is located inside the mounting ring. The screw is detachably connected to the mounting ring and is located inside the mounting ring, and the screw is arranged inside the mounting hole.

[0011] The utility model discloses a marine diesel engine air valve, comprising a valve body and a semi-fixed snap-fit ​​seat ring assembly, wherein the semi-fixed snap-fit ​​seat ring assembly comprises an output pipe, a locking ring, an extension ring and a connecting ring, wherein the output pipe is detachably connected to the valve body and is located at one side of the valve body, the locking ring is detachably connected to the output pipe and is located at one end of the output pipe away from the valve body, the extension ring is detachably connected to the locking ring and is located at a side of the locking ring away from the output pipe, and the connecting ring is detachably connected to the extension ring and is located at a side of the extension ring away from the locking ring. Since the original connection structure is replaced with the semi-fixed snap-fit ​​seat ring assembly, the problem that the output end of the air valve is detachably connected to the seat ring and the pressure of the air valve gradually increases with time, thereby frequently causing damage to the seat ring, is actively and effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is an overall top view of the first embodiment of the utility model.

[0015] Figure 3 This utility model Figure 2 AA line structural section view.

[0016] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0017] 101-valve body, 102-output pipe, 103-locking ring, 104-extension ring, 105-connecting ring, 106-fixing ring, 107-friction pattern, 108-locking tube, 109-locking cavity, 110-locking block, 111-positioning ring, 201-mounting ring, 202-mounting hole, 203-screw. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] First embodiment

[0020] See also Figure 1 to Figure 3 , Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a top view of the whole of the first embodiment of the utility model. Figure 3 This utility model Figure 2 AA line structural section view.

[0021] The utility model provides a marine diesel engine gas valve, comprising a valve body 101 and a semi-fixed snap-fit ​​seat ring assembly, wherein the semi-fixed snap-fit ​​seat ring assembly comprises an output pipe 102, a locking ring 103, an extension ring 104, a connecting ring 105, a fixing ring 106, a friction pattern 107, a locking cavity 109, a locking pipe 108, a locking block 110 and a positioning ring 111. The above-mentioned solution solves the problem that the output end of the gas valve will be detachably connected to the seat ring, and the pressure of the gas valve will gradually increase over time, thereby frequently causing damage to the seat ring. It can be understood that the above-mentioned solution can semi-fix the locking pipe 108 and the locking cavity 109 in a long-term use. The connecting ring 105 is snap-connected, thereby greatly improving the limit threshold of the pressure resistance of the connecting ring 105. At the same time, the friction pattern 107 will effectively strengthen the friction between the connecting ring 105 and the locking tube 108. When the locking tube 108 needs to be disassembled, the staff will manually destroy the fixing ring 106 to disassemble the extension ring 104 and the locking ring 103, and then disassemble the connecting ring 105 and the locking ring 103. This will actively and effectively solve the problem that the output end of the air valve will be detachably connected to the seat ring while retaining the original beneficial effects, and the pressure of the air valve will gradually increase with the passage of time, which will often cause damage to the seat ring.

[0022] According to the present specific embodiment, the output pipe 102 is detachably connected to the valve body 101 and is located on one side of the valve body 101; the locking ring 103 is detachably connected to the output pipe 102 and is located on an end of the output pipe 102 away from the valve body 101; the extension ring 104 is detachably connected to the locking ring 103 and is located on a side of the locking ring 103 away from the output pipe 102; the connecting ring 105 is detachably connected to the extension ring 104 and is located on a side of the extension ring 104 away from the locking ring 103; the valve body 101 and the locking ring 103 are the main structural components constituting the whole, the extension ring 104 is a functional structural component that provides a disassembly method, and the connecting ring 105 is an auxiliary structural component connected to the locking pipe 108.

[0023] Among them, the fixing ring 106 is detachably connected to the locking ring 103 and is located on the outer surface of the locking ring 103, the friction pattern 107 is fixedly connected to the connecting ring 105 and is located inside the connecting ring 105, the fixing ring 106 is a functional structural component for stabilizing the stability of the extension ring 104, and the friction pattern 107 will effectively provide friction between the connecting ring 105 and the locking tube 108.

[0024] Secondly, the locking cavity 109 is fixedly connected to the connecting ring 105 and is located inside the connecting ring 105, and the locking cavity 109 is arranged on one side of the friction pattern 107. The locking tube 108 is detachably connected to the connecting ring 105 and is located inside the ring of the connecting ring 105. The locking cavity 109 is the main functional structural component that cooperates with the locking block 110 to snap-connect the connecting ring 105 and the locking tube 108.

[0025] At the same time, the locking block 110 is detachably connected to the locking tube 108 and is located on the outer surface of the locking tube 108, and the locking block 110 is arranged inside the locking cavity 109, and the positioning ring 111 is detachably connected to the locking tube 108 and is located on the side of the locking outer surface tube away from the locking block 110.

[0026] During long-term use of the utility model, the locking block 110 and the locking cavity 109 will semi-fixedly engage the locking tube 108 with the connecting ring 105, thereby greatly improving the limit threshold of the connecting ring 105's ability to withstand pressure. At the same time, the friction pattern 107 will effectively strengthen the friction between the connecting ring 105 and the locking tube 108. When the locking tube 108 needs to be disassembled, the staff will manually destroy the fixing ring 106 to disassemble the extension ring 104 and the locking ring 103, and then disassemble the connecting ring 105 and the locking ring 103. This will actively and effectively solve the problem that the output end of the air valve will be detachably connected to the seat ring while retaining the original beneficial effects, and the pressure of the air valve will gradually increase over time, which will often cause damage to the seat ring.

[0027] Second embodiment

[0028] See also Figure 4 , Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0029] On the basis of the first embodiment, a marine diesel engine air valve of the utility model further includes a mounting assembly, and the mounting assembly includes a mounting ring 201 , a mounting hole 202 and a screw 203 .

[0030] According to this specific embodiment, the mounting ring 201 is detachably connected to the valve body 101 and is located on the outer surface of the valve body 101, the mounting hole 202 is fixedly connected to the mounting ring 201 and is located inside the mounting ring 201, the screw 203 is detachably connected to the mounting ring 201 and is located inside the mounting ring 201, and the screw 203 is arranged inside the mounting hole 202. When the valve body 101 needs to be installed, the valve body 101 is manually moved to a specified position, and then the screw 203 cooperates with the mounting hole 202 on the mounting ring 201 to fix the valve body 101 at the specified position.

[0031] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A ship diesel engine air valve, comprising a valve body, characterized in that: It also includes a semi-fixed snap-fit ​​seat ring assembly, which includes an output pipe, a locking ring, an extension ring and a connecting ring, the output pipe is detachably connected to the valve body and is located on one side of the valve body, the locking ring is detachably connected to the output pipe and is located at an end of the output pipe away from the valve body, the extension ring is detachably connected to the locking ring and is located on a side of the locking ring away from the output pipe, and the connecting ring is detachably connected to the extension ring and is located on a side of the extension ring away from the locking ring.

2. The marine diesel engine valve according to claim 1, characterized in that: The semi-fixed snap-fit ​​seat ring assembly also includes a fixing ring and a friction pattern. The fixing ring is detachably connected to the locking ring and is located on the outer surface of the locking ring. The friction pattern is fixedly connected to the connecting ring and is located inside the connecting ring.

3. The marine diesel engine air valve according to claim 2, characterized in that: The semi-fixed snap-fit ​​seat ring assembly also includes a locking cavity and a locking tube. The locking cavity is fixedly connected to the connecting ring and is located inside the connecting ring. The locking cavity is arranged on one side of the friction pattern. The locking tube is detachably connected to the connecting ring and is located inside the connecting ring.

4. The ship diesel engine air valve according to claim 3, characterized in that: The semi-fixed snap-fit ​​seat ring assembly also includes a locking block and a positioning ring, wherein the locking block is detachably connected to the locking tube and is located on the outer surface of the locking tube, and the locking block is arranged inside the locking cavity, and the positioning ring is detachably connected to the locking tube and is located on a side of the outer surface of the locking tube away from the locking block.

5. The ship diesel engine air valve according to claim 4, characterized in that: The ship diesel engine air valve also includes a mounting assembly, which includes a mounting ring, a mounting hole and a screw. The mounting ring is detachably connected to the valve body and is located on the outer surface of the valve body. The mounting hole is fixedly connected to the mounting ring and is located inside the mounting ring. The screw is detachably connected to the mounting ring and is located inside the mounting ring, and the screw is arranged inside the mounting hole.

Images