CN111963295B

CN111963295B - Closed cooling circulating water cooling system of marine diesel engine

Info

Publication number: CN111963295B
Application number: CN202010800309.4A
Authority: CN
Inventors: 刘宁磊; 赵焰虎; 朱正敏; 陈晗
Original assignee: Anqing CSSC Diesel Engine Co Ltd
Current assignee: Anqing CSSC Diesel Engine Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2022-03-29
Anticipated expiration: 2040-08-11
Also published as: CN111963295A

Abstract

The invention relates to a closed cooling circulating water cooling system of a marine diesel engine. The closed cooling circulating water cooling system of the marine diesel engine comprises a diesel engine main body, wherein a cooling channel is arranged on the outer surface of the diesel engine main body, the cooling channel comprises a water inlet and a water outlet, the water inlet and the water outlet are both connected with a connecting pipe fitting, the water inlet and the water outlet are communicated with a water tank main body through the connecting pipe fitting, a plurality of groups of air cooling grooves which are communicated with each other are formed in a shell of the water tank main body in a communicated mode, an air inlet of each air cooling groove is connected with an air blowing mechanism, and an air outlet of each air cooling groove is communicated with the outside of the water tank main body; this marine diesel engine closed cooling circulation water cooling system, simple structure, convenient operation uses in a flexible way, can effectual improvement diesel engine main part the radiating effect, convenient to popularize and use.

Description

Closed cooling circulating water cooling system of marine diesel engine

Technical Field

The invention belongs to the technical field of diesel engine cooling, and particularly relates to a closed cooling circulating water cooling system of a marine diesel engine.

Background

When the diesel engine works, the temperature of fuel gas in the cylinder can reach 2500 ℃, and part of heat generated by combustion is converted into mechanical energy, so that the diesel engine outputs work to the outside; a part of the heat is taken away by the exhausted waste gas; and a part of heat is transferred to parts such as a cylinder cover, a cylinder sleeve, a piston, an air valve and the like. The diesel engine cooling system has the function of forcibly cooling the diesel engine, so that the temperature of the diesel engine is kept in a lower range, and a better engine economic index is obtained; traditional marine diesel engine closed cooling circulation water cooling system is fresh water cooling system, generally utilizes water pipe fitting to make it encircle the surface of applying in the diesel engine, flows through its inside cooling water, takes away the diesel engine heat, but traditional cooling system its absorption heat behind long-time work more back, the unable fine effluvium of its own heat gathering, parcel this moment in the surface of diesel engine, its cooling efficiency is low can also prevent diesel engine shell's further heat dissipation.

Disclosure of Invention

The invention aims to solve the problems and provide a closed cooling circulating water cooling system of a marine diesel engine, which has a simple structure and is reasonable in design.

The invention realizes the purpose through the following technical scheme:

the utility model provides a marine diesel closed cooling circulation water cooling system, includes the diesel engine main part, the surface of diesel engine main part is provided with cooling channel, cooling channel includes water inlet and delivery port, the water inlet all is connected with the connection pipe fitting with the delivery port, the water inlet is through being connected pipe fitting intercommunication water tank main part with the delivery port, be provided with cooling liquid in the water tank main part, cooling liquid passes through the water inlet and gets into cooling channel, flows back through the delivery port in the water tank main part, it has the air-cooled recess of a plurality of groups mutual intercommunication to open in the shell spare of water tank main part, the air intake connection of air-cooled recess has the blast air mechanism, the air outlet of air-cooled recess and the external intercommunication of water tank main part.

As a further optimization scheme of the invention, the cooling channel comprises an air cooling channel and a water cooling channel, the water outlet, the water inlet and the water cooling channel are communicated, a partition plate is arranged between the water cooling channel and the air cooling channel, an air inlet of the air cooling channel is connected with an air blowing mechanism, and an air outlet of the air cooling channel is communicated with the outside.

As a further optimized scheme of the invention, the partition plates comprise a plurality of groups of movable partition plate members, and when the temperature in the water tank main body rises to a set temperature, the partition plate members compress the capacity of the water cooling channel and increase the power of the air blowing mechanism and the air blowing mechanism.

As a further optimization scheme of the invention, an upper plate is fixedly connected to the outer surface of the upper end of the partition plate, a lower plate is fixedly connected to the outer surface of the lower end of the partition plate, the upper plate, the partition plate and the lower plate form an i shape, the cooling channel comprises two groups of hard shell walls which are arranged oppositely, sliding seal grooves are formed in the outer surfaces of opposite sides of the two groups of hard shell walls, two ends of the upper plate and two ends of the lower plate are located in different sliding seal grooves and slide, and a driving mechanism is fixedly connected to the upper plate and drives the partition plate to move.

As a further optimized scheme of the present invention, the driving mechanism includes a driving motor fixedly connected to the hard casing wall, a screw member is fixedly connected to a driving shaft of the driving motor, a bearing seat is fixedly connected to the other end of the screw member, the bearing seat is fixed to the surface of the other hard casing wall, a connecting block is sleeved on the outer surface of the screw member, and the connecting block is fixedly connected to the upper plate.

As a further optimization scheme of the invention, the cooling channel comprises an adjusting section and a fixing section, the adjusting section and the fixing section are arranged at intervals, the partition plate further comprises a fixing partition plate, folding plate members are fixedly connected to two ends of the fixing partition plate, the other ends of the two groups of folding plate members are respectively and fixedly connected with different partition plate members, the partition plate members are located in the adjusting section, and the fixing partition plate is located in the fixing section.

As a further optimized scheme of the invention, the lower end face of the hard shell wall and the lower end face of the lower plate are both fixedly connected with a heat absorbing body, and the lower end of the heat absorbing body is in contact with the outer surface of the diesel engine main body.

The invention has the beneficial effects that: the air cooling grooves distributed on the surface of the water tank main body are arranged, and the air is ventilated into the air cooling grooves through the air blowing mechanism, so that the temperature in the water tank main body is conveniently reduced; the cooling channel is arranged and comprises an air cooling channel and a water cooling channel which are matched together to reduce the temperature of the diesel engine main body, and when a temperature sensor in the water tank main body senses that the temperature of liquid in the water tank main body reaches a threshold value, the capacity of the air cooling channel is increased by reducing the capacity of the water cooling channel, the influence of air on cooling is enhanced, the package of high-temperature liquid on the diesel engine main body is reduced, and the heat dissipation capacity of the diesel engine main body is effectively improved; whole device simple structure, convenient operation uses in a flexible way, can effectual improvement diesel engine main part the radiating effect, convenient to popularize and use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1 of the present invention;

FIG. 3 is a schematic view of the structure of the cooling passage of the present invention;

fig. 4 is a schematic structural view of the fixing section and the adjusting section of the present invention.

In the figure: 1. a diesel engine main body; 2. a water tank main body; 21. air-cooling the grooves; 3. a cooling channel; 31. air cooling channels; 32. a water-cooling channel; 33. a hard shell wall; 34. a heat absorbing body; 4. connecting pipe fittings; 51. a partition member; 52. a lower plate; 53. an upper plate; 54. a sliding seal groove; 61. a drive motor; 62. connecting blocks; 63. a screw member; 64. a bearing seat; 71. an adjustment section; 72. a fixed section; 81. fixing the partition board; 82. the plate is folded.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

As shown in fig. 1 to 4, a closed cooling circulation water cooling system of a marine diesel engine comprises a diesel engine body 1, the outer surface of the diesel engine main body 1 is provided with a cooling channel 3, the cooling channel 3 comprises a water inlet and a water outlet, the water inlet and the water outlet are both connected with a connecting pipe fitting 4, the water inlet and the water outlet are communicated with the water tank main body 2 through the connecting pipe fitting 4, the water tank main body 2 is internally provided with cooling liquid, the cooling liquid enters the cooling channel 3 through the water inlet and flows back into the water tank main body 2 through the water outlet, a certain pump piece can be arranged to provide flowing power of cooling liquid, a plurality of groups of air cooling grooves 21 which are communicated with each other are communicated in the shell piece of the water tank main body 2, the air inlet of the air cooling groove 21 is connected with an air blowing mechanism, and the air outlet of the air cooling groove 21 is communicated with the outside of the water tank main body 2.

The cooling channel 3 comprises an air cooling channel 31 and a water cooling channel 32, the water outlet and the water inlet are communicated with the water cooling channel 32, a partition plate is arranged between the water cooling channel 32 and the air cooling channel 31, an air inlet of the air cooling channel 31 is connected with an air blowing mechanism, and an air outlet of the air cooling channel 31 is communicated with the outside; the blower mechanism and the blower mechanism can adopt blowers, and in the embodiment, the blowers with adjustable power can be selected; the partition comprises a plurality of groups of movable partition plates 51, when the temperature in the water tank main body 2 rises to a set temperature, the partition plates 51 compress the capacity of the water cooling channel 32, and the power of the air blowing mechanism and the air blowing mechanism is increased; a temperature sensor is arranged in the water tank main body 2, a certain controller can be arranged in the system for control, specifically, a single chip controller can be adopted, and when the temperature sensor senses that the temperature in the water tank main body 2 reaches a set threshold value, the single chip controller controls the driving mechanism to drive the partition plate member 51 to move towards the water cooling channel 32, so that the water flow capacity in the water cooling channel 32 is reduced, and the capacity of the air cooling channel 31 is increased. An upper plate 53 is fixedly connected to the outer surface of the upper end of the partition plate 51, a lower plate 52 is fixedly connected to the outer surface of the lower end of the partition plate 51, the upper plate 53, the partition plate 51 and the lower plate 52 form an i shape, the cooling channel 3 comprises two groups of hard shell walls 33 which are oppositely arranged, sliding seal grooves 54 are formed in the outer surfaces of the opposite sides of the two groups of hard shell walls 33, two ends of the upper plate 53 and two ends of the lower plate 52 are located in different sliding seal grooves 54 to slide, and a driving mechanism is fixedly connected to the upper plate 53 and drives the partition plate 51 to move; the driving mechanism comprises a driving motor 61 fixedly connected with the hard shell wall 33, a screw member 63 is fixedly connected to a driving shaft of the driving motor 61, a bearing seat 64 is fixedly connected to the other end of the screw member 63, the bearing seat 64 is fixed on the surface of the other hard shell wall 33, a connecting block 62 is sleeved on the outer surface of the screw member 63, and the connecting block 62 is fixedly connected with the upper plate 53; the cooling channel 3 comprises an adjusting section 71 and a fixing section 72, the adjusting section 71 and the fixing section 72 are arranged at intervals, the partition further comprises a fixed partition 81, both ends of the fixed partition 81 are fixedly connected with folding plate members 82, the folding plate members 82 can be in a telescopic plate type, when the partition 51 moves, a certain adaptability is provided, the hard shell wall 33 of the fixing section 72 is a group of whole, the upper end surface and the lower end surface of each folding plate member 82 are tightly contacted with the inner surface of the hard shell wall 33 (elastic rubber with high elasticity, a supporting force is provided by the folding plate members in the vertical direction, the folding plate members move along with the movement of the partition 51 and are attached to the inner surface of the hard shell wall 33), it is ensured that the leakage problem of the two groups of channels cannot be generated, the other ends of the two groups of folding plate members 82 are respectively and fixedly connected with different partition members 51, the partition members 51 are located in the adjusting section 71, the fixed partition 81 is positioned in the fixed section 72; the lower end face of the hard shell wall 33 and the lower end face of the lower plate 52 are both fixedly connected with a heat absorbing body 34, the lower end of the heat absorbing body 34 is in contact with the outer surface of the diesel engine main body 1, and the heat absorbing body 34 only needs to be made of traditional metal with high heat transfer efficiency.

When the closed cooling circulating water cooling system for the marine diesel engine is used, the air cooling grooves 21 distributed on the surface of the water tank main body 2 are arranged, air is blown into the air cooling grooves 21 through the air blowing mechanism, so that the temperature in the water tank main body 2 is convenient to reduce, if necessary, air vents can be formed in the surface of the water tank main body 2 and are communicated with the outside, the air cooling grooves 21 are connected with an air pipe and are led into the water tank main body 2, air is led into the water tank main body 2 through the air blowing mechanism, liquid in the water tank main body 2 is enabled to roll, and cooling of the water tank main body 2 is accelerated; the cooling channel 3 is arranged, the cooling channel 3 comprises an air cooling channel 31 and a water cooling channel 32 which are matched together to reduce the temperature of the diesel engine main body 1, and when a temperature sensor in the water tank main body 2 senses that the temperature of liquid in the water tank main body reaches a threshold value, the capacity of the water cooling channel 32 is reduced, the capacity of the air cooling channel 31 is increased, the influence of air on cooling is enhanced, the package of high-temperature liquid on the diesel engine main body 1 is reduced, and the heat dissipation capacity of the diesel engine main body 1 is effectively improved; whole device simple structure, convenient operation uses in a flexible way, can effectual improvement diesel engine main part 1's radiating effect, convenient to popularize and use.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The closed cooling circulating water cooling system of the marine diesel engine is characterized by comprising a diesel engine main body (1), wherein a cooling channel (3) is arranged on the outer surface of the diesel engine main body (1), the cooling channel (3) comprises a water inlet and a water outlet, the water inlet and the water outlet are both connected with a connecting pipe fitting (4), the water inlet and the water outlet are communicated with a water tank main body (2) through the connecting pipe fitting (4), cooling liquid is arranged in the water tank main body (2), the cooling liquid enters the cooling channel (3) through the water inlet and flows back to the water tank main body (2) through the water outlet, a plurality of groups of air cooling grooves (21) which are communicated with each other are communicated in a shell of the water tank main body (2), an air inlet of each air cooling groove (21) is connected with an air blowing mechanism, and an air outlet of each air cooling groove (21) is communicated with the outside of the water tank main body (2), the water tank is characterized in that the cooling channel (3) comprises an air cooling channel (31) and a water cooling channel (32), a water outlet is communicated with a water inlet and the water cooling channel (32), a partition plate is arranged between the water cooling channel (32) and the air cooling channel (31), an air inlet of the air cooling channel (31) is connected with an air blowing mechanism, an air outlet of the air cooling channel (31) is communicated with the outside, the partition plate comprises a plurality of groups of movable partition plate pieces (51), when the temperature in the water tank main body (2) rises to a set temperature, the partition plate pieces (51) compress the capacity of the water cooling channel (32) and increase the power of the air blowing mechanism and the air blowing mechanism, an upper plate piece (53) is fixedly connected to the outer surface of the upper end of the partition plate piece (51), a lower plate piece (52) is fixedly connected to the outer surface of the lower end of the partition plate piece (51), and the upper plate piece (53), the partition plate piece (51) and the lower plate piece (52) form an I shape, the cooling channel (3) comprises two sets of hard shell walls (33) which are oppositely arranged, sliding sealing grooves (54) are formed in the outer surfaces of the opposite sides of the hard shell walls (33), the two ends of an upper plate (53) and the two ends of a lower plate (52) are located in different sliding sealing grooves (54) to slide, a driving mechanism is fixedly connected to the upper plate (53), and the driving mechanism drives a partition plate (51) to move.

2. The closed cooling circulating water cooling system of the marine diesel engine according to claim 1, characterized in that: the driving mechanism comprises a driving motor (61) fixedly connected with a hard shell wall (33), a screw rod piece (63) is fixedly connected with a driving shaft of the driving motor (61), a bearing seat (64) is fixedly connected with the other end of the screw rod piece (63), the bearing seat (64) is fixed on the surface of the other hard shell wall (33), a connecting block (62) is sleeved on the outer surface of the screw rod piece (63), and the connecting block (62) is fixedly connected with the upper plate piece (53).

3. The closed cooling circulating water cooling system of the marine diesel engine according to claim 2, characterized in that: cooling channel (3) are including adjusting section (71) and canned paragraph (72), it sets up with canned paragraph (72) interval to adjust section (71), the baffle still includes fixed partition board (81), the equal fixedly connected with folding plate spare (82) in both ends of fixed partition board (81), two sets of the other end of folding plate spare (82) is respectively with different partition plate spare (51) fixed connection, partition plate spare (51) are located and adjust section (71), fixed partition board (81) are located canned paragraph (72).

4. The closed cooling circulating water cooling system of the marine diesel engine according to claim 3, characterized in that: the lower end face of the hard shell wall (33) and the lower end face of the lower plate (52) are fixedly connected with a heat absorbing body (34), and the lower end of the heat absorbing body (34) is in contact with the outer surface of the diesel engine main body (1).