CN221195232U

CN221195232U - Air inlet and water removing device for air inlet system of diesel engine

Info

Publication number: CN221195232U
Application number: CN202323311348.6U
Authority: CN
Inventors: 曹阳; 孙鹏军; 姬瑶瑶; 孙玉波; 张技术; 张文博
Original assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Current assignee: Shannxi Diesel Engine Heavy Industry Co Ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-06-21
Anticipated expiration: 2033-12-06

Abstract

The utility model provides an air inlet dewatering device for diesel engine air intake system, belongs to diesel engine technical field. The device comprises an air inlet box and an air cooler in an air inlet system of the diesel engine, wherein an outlet of the air cooler is connected with an inlet of the air inlet box through a condensate water removing device; the condensate water dewatering device comprises a dewatering device box body, wherein the front end of the dewatering device box body is provided with an air inlet side, the air inlet side is connected with an air cooler outlet, the rear end of the dewatering device box body is provided with an air outlet side, and the air outlet side is connected with an inlet of the air inlet box; the interior of the dehydrator box body is provided with a heat dissipation and dehydration component, and moisture in air flowing out of the air cooler enters the air inlet box after being condensed and adsorbed by the heat dissipation and dehydration component in the condensed water dehydration device. According to the utility model, the water-gas separation of the air inlet system of the diesel engine is realized under the high humidity environment, the content of water gas entering the cylinder of the diesel engine is reduced, the problems of low-temperature corrosion of the cylinder sleeve and the like are avoided, and the use reliability of the diesel engine is improved.

Description

Air inlet and water removing device for air inlet system of diesel engine

Technical Field

The utility model belongs to the technical field of diesel engines, and particularly relates to an air inlet and water removal device for an air inlet system of a diesel engine.

Background

In order to improve the intake charge of a diesel engine, the current diesel engine generally adopts a supercharging and intercooling technology, as shown in a schematic diagram of an intake and exhaust system of the diesel engine shown in fig. 9, fresh air is compressed by a supercharger 6 and then is introduced into an air cooler 2, high-temperature air after supercharging is cooled by the air cooler 2 and then enters an air inlet box 1, so that a proper temperature is provided for an air inlet manifold of each cylinder, and the air enters a cylinder unit of the diesel engine through the air inlet manifold to participate in combustion work. Because the saturated water vapor content in the air is different at different temperatures and pressures, water can be separated out of the air in the cooling process of the compressed air, and condensed water is generated. The traditional condensate water removal scheme is that a larger air inlet box 1 is arranged behind an air cooler 2, a condensate water drain hole is formed in the position, close to the bottom, of the air inlet box 1, and equipment such as an air cooler condensate water leakage float valve 4, a water leakage detection liquid level switch 5 and the like are arranged in a condensate water drain pipeline, so that the water leakage condition of the air cooler is monitored while condensate water is discharged. However, the method has limited condensation water separation and discharge effects, particularly in areas with high temperature seasons and high air humidity, excessive condensation water quantity and limited cooling water discharge pipeline path, and the condensed water of the air cooler can not be discharged in time, so that false alarm of a water leakage detector is easily caused; meanwhile, due to the sweeping effect of the pressurized air, condensed water also can enter the air inlet manifold, so that the problems of water leakage at the inlet of the cylinder cover, increased content of water vapor entering the cylinder and the like are caused. And excessive steam enters the cylinder, when the temperature of the inner surface of the cylinder sleeve is lower than the dew point temperature of acid, H ₂SO₄ and other components can be generated, so that the problems of low-temperature corrosion and the like of the cylinder sleeve are caused, and the service life of the cylinder sleeve and the operation safety of a diesel engine are influenced. Therefore, from the design point of view, the amount of water entering the cylinder should be minimized. At present, the solution is to add a condensed water drain pipeline at the bottom of the air inlet box, increase the sectional area of the condensed water drain pipeline and improve the drainage capacity.

From the above, the conventional intake system intake and water removal scheme of the diesel engine mainly has the following disadvantages and shortcomings in the technology:

1. And when the diesel engine is stopped, the condensed water can be condensed, so that the inner surface of the cylinder cover is corroded at low temperature or a lubricating oil film on the inner surface of the cylinder cover is damaged, and the problems of abrasion increase and the like are caused.

2. The air after passing through the air cooler should contain a certain water vapor content, and in the traditional air inlet system, after the air is cooled by the air cooler, condensed water separation is not carried out on the cooled air, so that water vapor entering the air cylinder is still more, and corrosion resistance design and other works need to be carried out on air inlet system equipment such as a cylinder sleeve.

3. When the condensate water of the air cooler and the water leakage of the air cooler are discharged at the same position, the water quantity entering the water leakage detection pipeline of the air cooler is too large, so that the problems of water leakage false alarm and the like of the air cooler are easily caused, and when the diesel engine detects the water leakage signal of the air cooler, a fault speed reduction signal can be sent out, and the false alarm influences the running stability of the diesel engine.

Based on the above-described problems, there is a need for improvement.

Disclosure of utility model

The utility model solves the technical problems that: the utility model provides an air inlet water removing device for a diesel engine air inlet system, which aims to solve the problems in the prior art, breaks through the traditional design concept of condensate water removing of the diesel engine air inlet system, and provides a gas-water separation and water blocking design structure of condensate water of the diesel engine air inlet system, so that the water-air separation of the diesel engine air inlet system is realized under a high humidity environment, the content of water and air entering a cylinder of a diesel engine is reduced, the problems of low-temperature corrosion of a cylinder sleeve and the like are avoided, and the use reliability of the diesel engine is improved.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

The air inlet water removing device for the diesel engine air inlet system comprises an air inlet box and an air cooler in the diesel engine air inlet system, wherein an outlet of the air cooler is connected with an inlet of the air inlet box through a condensed water removing device;

The condensate water dewatering device comprises a dewatering device box body, wherein the front end of the dewatering device box body is provided with an air inlet side, the air inlet side is connected with an air cooler outlet, the rear end of the dewatering device box body is provided with an air outlet side, and the air outlet side is connected with an inlet of an air inlet box; the water eliminator box body is internally provided with a heat dissipation water elimination assembly, and moisture in air flowing out of the air cooler enters the air inlet box after being condensed and adsorbed by the heat dissipation water elimination assembly in the condensed water elimination device.

The heat dissipation and water removal assembly comprises a guide rod, a heat dissipation plate and a positioning spacer ring, wherein a plurality of heat dissipation plates and the positioning spacer ring are arranged, the heat dissipation plates are sequentially sleeved on the guide rod, the adjacent heat dissipation plates are positioned and separated through the positioning spacer ring, two ends of the guide rod are fixedly locked through locking nuts, and two ends of the guide rod are fixedly connected with the left side and the right side of the box body of the dehydrator through the fixing nuts.

Further, the heat radiating plate is obliquely mounted on the guide rod at an oblique mounting angle of 50 °.

Further, the heat dissipation water removal assembly is provided with two groups which are arranged in parallel from top to bottom, and the two groups of heat dissipation water removal assemblies are arranged in a double-layer tile eave structure.

Further, one end of the heat dissipation plate facing the air inlet side is a flat side, one end of the heat dissipation plate facing the air outlet side is a curved side, and a mouth of the curved side faces the air inlet side direction.

Further, the heat dissipation plate is made of stainless steel materials.

Further, the dehydrator box body is of a square frame structure with openings at the front end and the rear end, and the two ends are open, wherein the front port is an air inlet side, and the rear port is an air outlet side; a sealing plate is arranged on one side of the dehydrator box body, the sealing plate is fixedly connected with the dehydrator box body through a sealing plate mounting bolt, and holes for fixedly mounting a heat dissipation and water removal assembly are formed in the sealing plate and a side plate opposite to the dehydrator box body; the water eliminator box bottom plate is a water leakage sun-drying plate, a plurality of water leakage holes are uniformly distributed on the water leakage sun-drying plate, a water collecting tank is arranged at the lower part of the water leakage sun-drying plate, and the water collecting tank is fixedly connected with the water eliminator box.

Further, a water baffle bending plate is arranged on the periphery of the inner side of the air outlet side in the dehydrator box body, and the water baffle bending plate bends towards the air inlet side.

Compared with the prior art, the utility model has the advantages that:

1. According to the scheme, aiming at the problem of air-water separation of the air inlet system of the diesel engine, the condensate water removing device of the air inlet system comprising the heat radiating plate is designed, the re-separation of the air inlet condensate water is realized by utilizing the temperature difference between the plate wall and the air and the adsorption performance of the plate wall on cooling water vapor, the problem that the condensate water of the traditional air inlet system of the diesel engine enters a cylinder through an air inlet box is solved, through the verification of a real ship, the problems of false alarm of water leakage of an air cooler and low-temperature corrosion of a cylinder sleeve caused by excessive condensate water of the air inlet system are eliminated, the content of water vapor entering the cylinder of the diesel engine is reduced, the problems of low-temperature corrosion of the cylinder sleeve and the like are avoided, and the use reliability of the diesel engine is improved;

2. According to the scheme, aiming at the structural defect that a traditional air inlet box of an air inlet system has no water isolation, when a water removal structure is designed, the shape and arrangement of a radiating plate are designed, the tail end of the radiating plate adopts a curved arc-shaped edge structure, when air flows, water drops adsorbed on the radiating plate move to the tail end along the radiating plate, and due to the structure of the curved arc-shaped edge, the water drops cannot flow out and flow in an arc area and finally flow to the bottom of a water removal device to be discharged; meanwhile, the water removal device radiating plates are arranged into a double-layer tile eave structure, so that the water-proof effect is improved structurally; on the other hand, in order to prevent air from blowing condensed water into the air inlet box, water retaining bent plates are arranged on the side surface and the water outlet side of the device box body, so that the condensed water is prevented from being blown out; the structure effectively ensures the water removal effect of the condensed water removal device;

3. the scheme has good reliability, maintainability and environmental applicability, meets the application requirements of different types, can be popularized and applied to different purposes and different models of diesel engines, can also be applied to the development of new types of diesel engines, has wider application fields and better popularization value, and provides a certain foundation for the design, development and development of the air inlet system of the subsequent novel diesel engine.

Drawings

FIG. 1 is a front view of the condensate water removal apparatus of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1 in accordance with the present utility model;

FIG. 3 is a top view of the condensate water removal apparatus of the present utility model;

FIG. 4 is a bottom view of the condensate water removal apparatus of the present utility model;

FIG. 5 is a left side view of the condensate water removal apparatus of the present utility model;

FIG. 6 is a front view of a heat dissipating and water removing assembly according to the present utility model;

FIG. 7 is a top view of a heat dissipating and water removal assembly according to the present utility model;

FIG. 8 is a schematic view of a mounting structure of a heat dissipating plate according to the present utility model;

Fig. 9 is a schematic diagram of the installation of the condensate water trap of the present utility model in a diesel engine air intake system.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Referring to fig. 1-9, embodiments of the present utility model are described in detail.

Examples: the air inlet water removing device for the diesel engine air inlet system comprises an air inlet box 1 and an air cooler 2 in the diesel engine air inlet system; in order to remove the condensate water in the air intake system, as shown in fig. 9, a condensate water removing device 3 is disposed between the outlet of the air cooler 2 and the inlet of the air intake box 1 for connection.

In this embodiment, referring to fig. 1-5, the condensate water removing device 3 includes a dehydrator box 3-1, an air inlet side 3-11 is disposed at the front end of the dehydrator box 3-1, the air inlet side 3-11 is connected with an outlet of the air cooler 2, an air outlet side 3-12 is disposed at the rear end of the dehydrator box 3-1, and the air outlet side 3-12 is connected with an inlet of the air inlet box 1.

Specifically, the dehydrator box body 3-1 is of a square frame structure with front and rear ends open, and the front port is an air inlet side 3-11, and the rear port is an air outlet side 3-12 in the openings at the two ends; a sealing plate 3-8 is arranged on one side of the dehydrator box body 3-1, the sealing plate 3-8 is fixedly connected with the dehydrator box body 3-1 through a sealing plate mounting bolt 3-9, and holes for fixedly mounting the heat dissipation and water removal assembly 3-2 are formed in the sealing plate 3-8 and a side plate opposite to the dehydrator box body 3-1; the bottom plate of the dehydrator box body 3-1 is a water leakage and sun-drying plate 3-7, a plurality of water leakage holes are uniformly distributed on the water leakage and sun-drying plate 3-7, a water collecting tank is arranged at the lower part of the water leakage and sun-drying plate 3-7, and the water collecting tank is fixedly connected with the dehydrator box body 3-1, so that condensed water can be conveniently discharged.

In this embodiment, the dehydrator box 3-1 is internally provided with a heat dissipation and dehydration component 3-2, and moisture in air flowing out of the air cooler 2 enters the air inlet box 1 after being condensed and adsorbed by the heat dissipation and dehydration component 3-2 in the condensed water dehydration device 3.

Specifically, referring to fig. 6-7, a set of heat dissipation and water removal components 3-2 includes a guide rod 3-3, a heat dissipation plate 3-4 and a positioning spacer ring 3-5, the heat dissipation plate 3-4 and the positioning spacer ring 3-5 are provided with a plurality of heat dissipation plates 3-4 sequentially sleeved on the guide rod 3-3, adjacent heat dissipation plates 3-4 are positioned and separated by the positioning spacer ring 3-5, two ends of the guide rod 3-3 are fixedly locked by locking nuts 3-6, and two ends of the guide rod 3-3 are fixedly connected with the left side and the right side of the dehydrator box body 3-1 by fixing nuts 3-10.

Preferably, referring to fig. 8, the heat dissipation plate 3-4 is mounted to the guide rod 3-3 at an inclination angle of 50 °.

Preferably, referring to fig. 2, the heat dissipation and water removal assembly 3-2 is provided with two groups of heat dissipation and water removal assemblies 3-2 which are arranged in parallel up and down, and the two groups of heat dissipation and water removal assemblies 3-2 are arranged in a double-layer tile eave structure.

Preferably, referring to fig. 8, one end of the heat dissipation plate 3-4 facing the air inlet side 3-11 is a flat side 3-4-1, one end of the heat dissipation plate 3-4 facing the air outlet side 3-12 is a curved side 3-4-2, and the opening of the curved side 3-4-2 faces the air inlet side 3-11.

Preferably, the heat dissipation plates 3-4 are made of stainless steel materials.

In the above-mentioned structure, in order to guarantee that every layer of heating panel installation direction is unanimous, the installation of being convenient for simultaneously, the heating panel is installed with the installation angle of about 50, and on the one hand guarantee cooling water's water proof effect like this, on the other hand can not increase too big air flow loss. And a positioning space ring is arranged between each two heat dissipation plates, holes are formed in each heat dissipation plate, each heat dissipation plate and the positioning space ring are sleeved on the guide rod, and the tail ends of the heat dissipation plates are locked by nuts, so that the heat dissipation plates are ensured to be fixed and orderly arranged, and the problems of turbine, separation and the like are avoided when air flows through the heat dissipation plates. Because the heat dissipation plate is in the air-water environment for a long time, the heat dissipation plate is made of stainless steel materials, and corrosion is avoided.

In this embodiment, a water baffle plate 3-13 is disposed on a periphery of an inner side of the air outlet side 3-12 in the dehydrator box body 3-1, and the water baffle plate 3-13 is bent towards the air inlet side 3-11 to prevent leaked condensed water from being blown out from two sides and the bottom of the dehydrator and entering the air inlet box.

Working principle: when the hot air contacts the radiating plate in the water removing device, water vapor in the air can be separated out and adsorbed on the radiating plate due to the fact that the temperature of the radiating plate is low; in order to prevent the precipitated condensate water from blowing to the air outlet side along with air, the tail end of the heat dissipation plate is arranged into an arc-shaped structure, so that when the air flows, the condensate water can move along the plate wall, and at the tail end of the heat dissipation plate, the condensate water can flow in an arc-shaped area, flow is schematically shown in the direction shown in fig. 8, finally falls into the bottom of the box body of the dehydrator, flows into the condensate water collecting water tank through the water leakage and airing plate and is discharged. For guaranteeing the dewatering effect, air intake system comdenstion water trap fin designs into two-layer eaves formula structure, all welds the manger plate bent plate simultaneously in the side and the bottom of giving vent to anger of water trap box, prevents that the comdenstion water that leaks from blowing out from water trap's both sides and bottom, gets into the inlet box. According to the installation space, an independent condensed water leakage collecting box or a water collecting tank can be arranged at the bottom of the water leakage airing plate to drain condensed water.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a diesel engine air intake system is with water trap that admits air, includes air inlet box (1) and air cooler (2) among the diesel engine air intake system, its characterized in that: the outlet of the air cooler (2) is connected with the inlet of the air inlet box (1) through a condensed water removing device (3);

the condensate water dewatering device (3) comprises a dewatering device box body (3-1), wherein the front end of the dewatering device box body (3-1) is provided with an air inlet side (3-11), the air inlet side (3-11) is connected with an outlet of the air cooler (2), the rear end of the dewatering device box body (3-1) is provided with an air outlet side (3-12), and the air outlet side (3-12) is connected with an inlet of the air inlet box (1); the novel condensing type air conditioner is characterized in that a heat dissipation and water removal assembly (3-2) is arranged inside the dehydrator box body (3-1), and moisture in air flowing out of the air cooler (2) enters the air inlet box (1) after being condensed and adsorbed by the heat dissipation and water removal assembly (3-2) in the condensed water removal device (3).

2. The intake water removal device for a diesel engine intake system according to claim 1, wherein: the heat dissipation and water removal assembly (3-2) comprises a guide rod (3-3), a heat dissipation plate (3-4) and a positioning spacer ring (3-5), wherein a plurality of heat dissipation plates (3-4) and the positioning spacer ring (3-5) are arranged, the heat dissipation plates (3-4) are sequentially sleeved on the guide rod (3-3), the adjacent heat dissipation plates (3-4) are positioned and separated through the positioning spacer ring (3-5), two ends of the guide rod (3-3) are fixedly locked through locking nuts (3-6), and two ends of the guide rod (3-3) are fixedly connected with the left side and the right side of the dehydrator box body (3-1) through fixing nuts (3-10).

3. The intake water removal device for a diesel engine intake system according to claim 2, wherein: the radiating plate (3-4) is obliquely arranged on the guide rod (3-3) and the oblique installation angle is 50 degrees.

4. The intake water removal device for a diesel engine intake system according to claim 2, wherein: the heat dissipation and water removal assembly (3-2) is provided with two groups which are arranged in parallel up and down, and the two groups of heat dissipation and water removal assemblies (3-2) are arranged in a double-layer tile eave structure.

5. The intake water removal device for a diesel engine intake system according to claim 2, wherein: one end of the radiating plate (3-4) facing the air inlet side (3-11) is a flat edge (3-4-1), one end of the radiating plate (3-4) facing the air outlet side (3-12) is a curved edge (3-4-2), and the opening of the curved edge (3-4-2) faces the air inlet side (3-11).

6. The intake water removal device for a diesel engine intake system according to claim 2, wherein: the radiating plate (3-4) is made of stainless steel materials.

7. The intake water removal device for a diesel engine intake system according to claim 1, wherein: the dehydrator box body (3-1) is of a square frame structure with openings at the front end and the rear end, and the two ends are open, wherein the front port is an air inlet side (3-11), and the rear port is an air outlet side (3-12); a sealing plate (3-8) is arranged on one side of the dehydrator box body (3-1), the sealing plate (3-8) is fixedly connected with the dehydrator box body (3-1) through a sealing plate mounting bolt (3-9), and holes for fixedly mounting a heat dissipation and water removal assembly (3-2) are formed in the sealing plate (3-8) and a side plate opposite to the dehydrator box body (3-1); the water eliminator box body (3-1) bottom plate is a water leakage sun plate (3-7), a plurality of water leakage holes are uniformly distributed on the water leakage sun plate (3-7), a water collecting tank is arranged at the lower part of the water leakage sun plate (3-7), and the water collecting tank is fixedly connected with the water eliminator box body (3-1).

8. The intake water removal device for a diesel engine intake system according to claim 1, wherein: the inner circumference of the air outlet side (3-12) in the dehydrator box body (3-1) is provided with a water baffle bending plate (3-13), and the water baffle bending plate (3-13) bends towards the air inlet side (3-11).